CN106598824B - The method for analyzing performance and device of block chain - Google Patents

Abstract

The invention discloses a block chain performance analysis method, which is applied to a block chain network, the block chain network includes a plurality of server nodes, the block chain network is deployed with a test program client, and the block chain network The performance analysis method of the block chain includes: the client of the test program initiates a test request to the block chain network; when it is detected that the block chain network responds to the test request, the performance index corresponding to the test request is determined, and the Statistical analysis is carried out in the test process of the above-mentioned performance indicators; the performance of the block chain is analyzed according to the results of the statistical analysis. The invention also discloses a block chain performance analysis device. The present invention improves the accuracy of performance analysis of the blockchain network by performing in-depth analysis of multiple performance indicators on the blockchain network.

Description

Blockchain performance analysis method and device

technical field

The present invention relates to the field of block chains, in particular to a performance analysis method and device for block chains.

Background technique

In the existing technology, the performance analysis and testing of the blockchain generally obtains the performance data of the blockchain network by performing superficial request tests on the blockchain, without in-depth analysis of the bottom layer of the blockchain network, resulting in The performance analysis results of the blockchain are not accurate enough and not comprehensive enough.

Contents of the invention

The main purpose of the present invention is to propose a block chain performance analysis method and device, aiming to solve the technical problem that the existing block chain performance analysis method is not deep enough, resulting in insufficient comprehensive and inaccurate analysis results.

In order to achieve the above object, the performance analysis method of a block chain provided by the present invention is applied in a block chain network, the block chain network includes a plurality of server nodes, and the block chain network is deployed with a test program client terminal, the performance analysis method of the blockchain includes:

The test program client initiates a test request to the blockchain network;

When detecting that the block chain network responds to the test request, determine the performance index corresponding to the test request, and perform statistical analysis on the test process of the performance index;

The performance of the blockchain is analyzed according to the results of the statistical analysis.

Preferably, before the test program client initiates a test request to the blockchain network, the performance analysis method of the blockchain further includes:

The test program client reads the preset smart contract;

Compile the read smart contract;

Deploy the compiled smart contract to the block chain network, so that a test request can be initiated to the block chain network based on the deployed smart contract.

Preferably, the step of determining the performance index corresponding to the test request and performing statistical analysis on the test process of the performance index includes:

If the performance index corresponding to the test request is the block synchronization speed, the time difference between the start time and the end time of the server node downloading block in the block chain network is counted, and the number of transactions corresponding to the block is counted, and the transaction number divided by said time difference;

If the performance index corresponding to the test request is time-consuming for consensus convergence, count the start consensus time and end time of the block by the server nodes in the blockchain network;

If the performance index corresponding to the test request is bandwidth, the client of the statistical test program executes the bandwidth traffic of the server node during the test process, wherein the bandwidth includes incoming bandwidth and outgoing bandwidth;

If the performance index corresponding to the test request is memory consumption and CPU ratio, the memory capacity value and CPU ratio consumed by the process of the server node are counted during the execution of the test by the client of the test program.

Preferably, the step of analyzing the performance of the blockchain according to the results includes:

When the output result is the number of transactions in the block and the time difference corresponding to downloading the block, analyze the impact of the number of transactions in the block on the data synchronization speed;

When the output result is time-consuming for the consensus convergence of the server nodes on the block in the blockchain network, analyze the impact of the consensus performance of the server nodes on the performance of the blockchain;

When the output result is the bandwidth flow of the server node, analyze the comparative relationship between the incoming bandwidth flow, transaction request initiation speed and transaction request size, and analyze the comparative relationship between bandwidth flow, block synchronization speed and single transaction size;

When the output result is the memory consumption and the CPU ratio in the blockchain network, the relationship between the memory consumption, the CPU ratio and the performance of the blockchain is analyzed.

Preferably, the server nodes in the block chain network include accounting nodes and participating nodes, and the performance analysis method of the block chain also includes:

Determine the value of the network scale according to the number of bookkeeping nodes and participating nodes in the blockchain network;

According to the value of the network scale and the number of bookkeeping nodes, the name of the blockchain network is generated; wherein, the naming rule is set to WN-CM, WN represents the value of the network scale, and CM represents the number of bookkeeping nodes.

In addition, in order to achieve the above purpose, the present invention also proposes a block chain performance analysis device, which is applied to a block chain network, the block chain network includes a plurality of server nodes, and the block chain network is deployed with test The program client, the performance analysis device of the block chain includes:

The initiation module is used to initiate a test request to the blockchain network;

A processing module, configured to determine the performance index corresponding to the test request when detecting that the block chain network responds to the test request, and perform statistical analysis on the test process of the performance index;

An analysis module is used to analyze the performance of the block chain according to the results of the statistical analysis.

Preferably, the performance analysis device of the block chain also includes:

The reading module is used to read the preset smart contract;

The compilation module is used to compile the read smart contract;

A deployment module is configured to deploy the compiled smart contract into the block chain network, so that a test request is subsequently initiated to the block chain network based on the deployed smart contract.

Preferably, the processing module is also used for,

If the performance index corresponding to the test request is the block synchronization speed, the time difference between the start time and the end time of the server node downloading block in the block chain network is counted, and the number of transactions corresponding to the block is counted, and the transaction number divided by said time difference;

If the performance index corresponding to the test request is time-consuming for consensus convergence, count the start consensus time and end time of the block by the server nodes in the blockchain network;

If the performance index corresponding to the test request is bandwidth, the client of the statistical test program executes the bandwidth traffic of the server node during the test process, wherein the bandwidth includes incoming bandwidth and outgoing bandwidth;

If the performance index corresponding to the test request is memory consumption and CPU ratio, the memory capacity value and CPU ratio consumed by the process of the server node are counted during the execution of the test by the client of the test program.

Preferably, the analysis module is also used for,

When the output result is the number of transactions in the block and the time difference corresponding to downloading the block, analyze the impact of the number of transactions in the block on the data synchronization speed;

When the output result is time-consuming for the consensus convergence of the server nodes on the block in the blockchain network, analyze the impact of the consensus performance of the server nodes on the performance of the blockchain;

When the output result is the bandwidth flow of the server node, analyze the comparative relationship between the incoming bandwidth flow, transaction request initiation speed and transaction request size, and analyze the comparative relationship between bandwidth flow, block synchronization speed and single transaction size;

When the output result is the memory consumption and the CPU ratio in the blockchain network, the relationship between the memory consumption, the CPU ratio and the performance of the blockchain is analyzed.

Preferably, the server nodes in the block chain network include accounting nodes and participating nodes, and the performance analysis device of the block chain also includes:

A determining module, configured to determine the value of the network scale according to the number of bookkeeping nodes and participating nodes in the blockchain network;

The generation module is used to generate the name of the blockchain network according to the value of the network scale and the number of bookkeeping nodes; wherein, the naming rule is set to WN-CM, WN represents the value of the network scale, and CM represents bookkeeping the number of nodes.

In the block chain performance analysis method and device proposed by the present invention, the test program client first initiates a test request to the block chain network, and when it detects that the block chain network responds to the test request, it determines that the test request corresponds to performance indicators, and perform statistical analysis on the test process of the performance indicators, and finally analyze the performance of the blockchain according to the results of the statistical analysis. The present invention analyzes multiple performance indicators by going deep into the bottom layer of the blockchain network to improve This ensures the accuracy and comprehensiveness of blockchain network performance analysis.

Description of drawings

Fig. 1 is a schematic flow chart of the first embodiment of the performance analysis method of the block chain of the present invention;

Fig. 2 is a schematic flow chart of the second embodiment of the performance analysis method of the block chain of the present invention;

3 is a schematic diagram of the functional modules of the first embodiment of the performance analysis device of the blockchain of the present invention;

Fig. 4 is a schematic diagram of the functional modules of the second embodiment of the performance analysis device of the blockchain of the present invention.

The realization of the purpose of the present invention, functional characteristics and advantages will be further described in conjunction with the embodiments and with reference to the accompanying drawings.

Detailed ways

It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

The solution of the embodiment of the present invention is mainly: the test program client first initiates a test request to the block chain network, and when detecting that the block chain network responds to the test request, determines the performance index corresponding to the test request, And carry out statistical analysis on the test process of the performance index, and finally analyze the performance of the block chain according to the results of the statistical analysis, so as to solve the problem that the existing block chain performance analysis method is not deep enough, resulting in insufficient comprehensive and accurate analysis results The problem.

The technical terms involved in the present invention include:

Blockchain: A decentralized distributed ledger database. The blockchain itself is actually a series of data blocks generated using cryptographic algorithms, and each data block contains information for valid confirmation of multiple blockchain network transactions. Blockchain technology originated from the application of Bitcoin and is a mature technology, not the content of the invention described in this article.

Consensus mechanism: Consensus mechanism means that each transaction node on the peer-to-peer network uses a common algorithm to confirm a batch of transactions. The algorithms used include workload proof, equity proof, multi-signature verification, election verification, etc.

Participating node: specifically refers to the network nodes that participate in the blockchain network for transactions and data exchange. Each independent organization can have one or more transaction nodes. Each transaction node is a group of physical networks, computers, and blockchains. Combination of application software and database. Nodes are connected to each other through the TCP/IP protocol.

Accounting node: A network node that verifies the signature of the current block. The node generates and confirms the validity of the latest block, and then broadcasts to other nodes to synchronize the latest block.

RPC: The RPC referred to in this article is called Remote Procedure Call Protocol in English, which refers to the remote procedure call protocol, which is a protocol that requests services from remote computer programs through the network without understanding the underlying network technology. The process of remote procedure call is that the client sends a request to the server to execute several procedures, and uses the parameters provided by the client, and the execution result will be returned to the client.

Smart contract: The smart contract referred to in this article is a service program written in solidity language that implements specific logic, and is published on the blockchain in binary form for contract participants to Execute the call and get the result.

The invention provides a performance analysis method of a block chain.

Referring to FIG. 1 , FIG. 1 is a schematic flowchart of a first embodiment of a blockchain performance analysis method according to the present invention.

In this embodiment, the performance analysis method of the block chain is applied to a block chain network, the block chain network includes a plurality of server nodes, the block chain network is deployed with a test program client, the Blockchain performance analysis methods include:

Step S10, the test program client initiates a test request to the blockchain network;

Step S20, when it is detected that the blockchain network responds to the test request, determine the performance index corresponding to the test request, and perform statistical analysis on the test process of the performance index;

Step S30, analyzing the performance of the block chain according to the results of statistical analysis.

That is, in this embodiment, the blockchain network is deployed first, and the blockchain network deploys multiple server nodes; among them, the operating environment requirements of the blockchain network are met, and the blockchain interconnection network module is running, which can Servers of transaction core modules and data storage modules that reach a consensus are defined as blockchain server nodes; finally, a group of servers that meet the above requirements form a blockchain network. Among them, the server node includes two types of accounting nodes and participating nodes, and the specific number of accounting nodes and participating nodes is not limited, and can be set according to specific situations.

After deploying the blockchain network, continue to deploy the test program client in the blockchain network; wherein, it meets the operating environment requirements of the blockchain client software and can communicate with the blockchain network through a specific communication protocol The server that interacts and can send test requests according to the specified sending speed and sending quantity is defined as the test program client.

The following are the specific steps for gradually realizing blockchain performance analysis in this embodiment:

Wherein, in step S10, the test program client initiates a test request for performance indicators to the blockchain network;

First, before the step S10, the performance analysis method of the block chain also includes:

Step A, the test program client reads the preset smart contract;

Step B, compiling the read smart contract;

Step C, deploying the compiled smart contract to the blockchain network, so that a test request can be initiated to the blockchain network based on the deployed smart contract.

In this embodiment, the preset smart contract is essentially a piece of code set in advance, so after the test program client reads the smart contract, it needs to first compile the read smart contract, Then deploy the compiled smart contract to the blockchain network, and subsequently, the test program client can initiate a performance index test request to the blockchain network based on the deployed smart contract. The smart contract in this embodiment is equivalent to an interface, through which the test program client can initiate a performance index test request to the blockchain network.

In this embodiment, the test program client initiates a test request to the block chain network. It may only initiate a test request for one performance index at a time, or it may initiate a test request for multiple performance indexes at the same time, and each When a performance indicator initiates a test request, multiple transactions or requests can be initiated for the performance indicator at one time. It should be understood that when the test program client takes a certain amount of time to execute the test process, the greater the total amount of transactions or requests initiated each time, the greater the load rate.

Wherein, step S20, when it is detected that the block chain network responds to the test request, determine the performance index corresponding to the test request, and perform statistical analysis on the test process of the performance index;

In this embodiment, after the test program client initiates a test request to the block chain network, if it is detected that the block chain network responds to the test request, at this time, the test program client determines that the test request corresponds to The performance indicators, and statistical analysis of the test process of the performance indicators. It should be understood that the block chain network responding to the test request essentially means confirming the receipt of the test request, that is, responding to the receipt of the test request.

In this embodiment, the performance indicators corresponding to the test request include multiple performance indicators, including block synchronization speed, consensus convergence time, transactional contract interface performance, non-transactional contract interface performance, block data synchronization performance, Block capacity, block packing speed, etc., therefore, the implementation of the step S20 corresponds to the following:

1. If the performance index corresponding to the test request is the block synchronization speed, the time difference between the start time and the end time of the server node downloading the block in the blockchain network, and the number of transactions corresponding to the block are counted, and the The number of transactions divided by the time difference;

Among them, the test method is to monitor the time difference between the start of downloading the server node block and the completion of downloading and joining the block chain, and the number of transactions in the block;

The indicator calculation formula: the number of transactions in the block / the time difference consumed by the synchronization of the block, the indicator calculation formula: the number of transactions / per second.

2. If the performance index corresponding to the test request is consensus convergence time-consuming, count the start consensus time and end time of the block by the server nodes in the blockchain network;

Among them, it is defined as: the time difference between the start of the bookkeeping node executing the network consensus algorithm for a block and reaching the consensus; the indicator calculation formula: milliseconds.

It is worth noting that the time-consuming consensus convergence refers to: different server nodes in the blockchain network have added blocks, but due to the different synchronization sequences of the blocks of different nodes, the content of the blocks is different, and at this time Only one block needs to be added. Therefore, each node needs to perform consensus convergence to determine one of the blocks as the block finally added to the blockchain, and the consensus convergence time is the time for each node to reach consensus.

3. If the performance index corresponding to the test request is bandwidth, then count the bandwidth traffic of the server node during the test program client execution process, wherein the bandwidth includes incoming bandwidth and outgoing bandwidth;

4. If the performance index corresponding to the test request is memory consumption and CPU ratio, the memory capacity value and CPU ratio consumed by the process of the server node are counted during the execution of the test by the client of the test program;

5. If the performance index corresponding to the test request is a transaction-type contract interface, then count the total transaction amount of the transaction-type contract interface and the time difference when the transaction is packaged into a block, and divide the total transaction amount by the time difference;

Among them, the test method is that in blockchains of different scales, the client of the test program continuously initiates a large number of transaction requests to the bookkeeping nodes and participating nodes;

The indicator calculation formula is: total transaction volume / (the time when the last transaction was packaged and generated into a block - the earliest transaction initiation time), and the indicator unit: number of transactions / per second.

6. If the performance index corresponding to the test request is a non-transactional contract interface, count the total number of requests for the non-transactional contract interface and the time difference between request results, and divide the total amount of requests by the time difference;

Among them, the test method is to continuously initiate a large number of non-transactional RPC requests to participating nodes from the test program client in blockchains of different scales;

The indicator calculation formula is: total number of requests/(the return time of the last request sent by the test program client - the earliest request initiation time), and the indicator unit: number of requests/per second.

7. If the performance index corresponding to the test request is block data synchronization performance, monitor the number of block transactions of each server node in the blockchain and the block synchronization time difference, and divide the block transaction number by the synchronization time difference ;

Among them, the test method is to monitor the change of the block height of the participating nodes and calculate the block synchronization time difference;

Indicator calculation formula: number of block transactions / (block synchronization completion time - block generation time), indicator unit: number of transactions / per second.

It is worth noting that the change of the block height refers to: each node in the same block chain contains different numbers of blocks, therefore, the corresponding heights are different, then block synchronization is required to Implement blocks with the same height.

8. If the performance index corresponding to the test request is a block capacity query request, then count the number of bytes corresponding to the block generated by each server node in the block chain;

Among them, the test method is that in blockchains of different scales, the client of the test program continuously initiates a large number of transaction requests to the participating nodes, and queries the capacity of the generated blocks;

Indicator calculation formula: the number of bytes of block data, indicator unit: byte.

9. If the performance index corresponding to the test request is the block packaging speed, count the number of transactions in the block in the blockchain and the time it takes to generate the block packaging, and divide the transaction number by the time spent;

Among them, the test method is to monitor the packaging generation time interval of the corresponding block and the number of transactions in the block;

Indicator calculation formula: number of transactions in a block/time it takes for the block to be packaged; indicator unit: number of transactions/second.

10. Contract Interface Complexity

Definition: In the implementation of the interface method of the smart contract, a variable assignment is performed, which is defined as the contract interface complexity is 1. If there are N variable assignments in the interface, the contract interface complexity is N;

Indicator calculation formula: the number of contract interface variable assignments.

In this embodiment, according to the requirements of the test, the client side of the test program can be changed to issue batch requests with different load levels. And according to the implementation method of monitoring indicators in the following list, do a good job of data monitoring and recording, and change different networks and scenarios for repeated execution. where the table looks like this:

Wherein, step S30, analyze the performance of the block chain according to the result of statistical analysis.

In this embodiment, after the test program client determines the performance index corresponding to the test request, and performs statistical analysis on the test process of the performance index, obtains the result of the statistical analysis, and outputs a report, so as to The reported results analyze the performance of the blockchain. Since the above-mentioned performance indicators include various types, the analysis of the performance of the blockchain by the test program client according to the results also includes various implementation methods, specifically including:

1) When the output result is the number of transactions in the block and the time difference corresponding to downloading the block, analyze the impact of the number of transactions in the block on the data synchronization speed; specifically, analyze the number of transactions in the block, and the The influence of block data synchronization speed between server nodes.

2) When the output result is time-consuming for the consensus convergence of the server node on the block in the blockchain network, analyze the impact of the consensus performance of the server node on the performance of the blockchain; specifically, the consensus model parameters of the bookkeeping nodes can be adjusted to Analyze the impact of accounting node consensus performance on overall performance.

3) When the output result is the bandwidth flow of the server node, analyze the comparative relationship between the incoming bandwidth flow, transaction request initiation speed, and transaction request size, and analyze the comparative relationship between bandwidth flow, block synchronization speed, and single transaction size; Specifically, the comparative relationship between the incoming bandwidth requirements of accounting nodes and the transaction request initiation speed and transaction request size is analyzed, and the comparative relationship between bandwidth requirements and block synchronization speed and the size of a single transaction is analyzed.

4) When the output result is the memory consumption and the CPU ratio in the blockchain network, analyze the relationship between the memory consumption and the CPU ratio and the performance of the blockchain; specifically, record the CPU operation of the server node program , analyze the relationship between cpu and overall performance, record the memory consumption of server nodes, and analyze the relationship between cpu and overall performance.

Further, analyzing the performance of the blockchain according to the results may also include:

Adjust the network model and analyze the impact of the network model on the overall performance;

Adjust the RPC service performance parameters of server nodes and analyze their impact on overall performance;

Analyze the relationship between bandwidth and the number of server nodes directly connected to accounting nodes;

Increase or decrease the number of nodes in the network, analyze its relationship with overall performance, etc.

In this embodiment, it is equivalent to determining the definitions and calculation formulas of various performance indicators, performing statistical analysis on the data recorded during the execution process, obtaining the results of the above-mentioned performance indicators in different networks and scenarios, and finally making a comparative analysis .

In the performance analysis method of the block chain proposed in this embodiment, the test program client first initiates a test request to the block chain network, and when it is detected that the block chain network responds to the test request, it determines the corresponding test request. Performance indicators, and perform statistical analysis on the test process of the performance indicators, and finally analyze the performance of the blockchain according to the results of the statistical analysis. This embodiment analyzes multiple performance indicators by going deep into the bottom layer of the blockchain network to improve This ensures the accuracy and comprehensiveness of blockchain network performance analysis.

Further, in order to improve the security of the performance analysis of the blockchain, a second embodiment of the performance analysis method of the blockchain of the present invention is proposed based on the first embodiment.

In this embodiment, the server nodes in the block chain network include accounting nodes and participating nodes. Referring to FIG. 2, the performance analysis method of the block chain also includes:

Step S40, determining the value of the network scale according to the number of bookkeeping nodes and participating nodes in the blockchain network;

Step S50, generate the name of the blockchain network according to the value of the network scale and the number of accounting nodes; wherein, the naming rule is set to WN-CM, WN represents the value of the network scale, and CM represents the value of the accounting node number.

In this embodiment, since the server nodes in the blockchain network include accounting nodes and participating nodes, the sum of the number of accounting nodes and the number of participating nodes in the blockchain network can be calculated according to the accounting The sum of the number of nodes and the number of participating nodes determines the value of the network scale in the blockchain network. For example: in the blockchain network, there are a total of four participating nodes A, B, D, and E, and there is one accounting node C. Therefore, by definition, the network size is W5.

Index calculation formula: number of bookkeeping nodes + number of participating nodes; definition description method: W (number of bookkeeping nodes + number of participating nodes).

After determining the value of the network scale in the blockchain network, the name of the blockchain network is generated according to the value of the network scale and the number of bookkeeping nodes. Preferably, the naming rule is set to WN-CM, where WN represents the value of the network scale, and CM represents the number of billing nodes. Taking the above example as an example, it can be determined that there is one billing node. Therefore, the final The name of the above blockchain network is: W5-C1.

Through this naming rule, the blockchain network can be clearly and accurately described, so that the naming of each blockchain network can be distinguished. Even if there are multiple blockchains communicating at the same time, they will not be indistinguishable due to names. This leads to an error in the communication process.

The present invention further provides a block chain performance analysis device.

Referring to FIG. 3 , FIG. 3 is a schematic diagram of the functional modules of the first embodiment of the performance analysis device for the blockchain of the present invention.

It should be emphasized that, for those skilled in the art, the functional block diagram shown in Figure 3 is only an example diagram of a preferred embodiment, and those skilled in the art focus on the performance analysis device of the block chain shown in Figure 3 Functional modules can be easily supplemented with new functional modules; the names of each functional module are self-defined names, which are only used to assist in understanding the various program function blocks of the performance analysis device of the blockchain, and are not used to limit the technical solution of the present invention , the core of the technical solution of the present invention is the functions to be achieved by the function modules with self-defined names.

In this embodiment, the block chain performance analysis device is applied to a block chain network, the block chain network includes a plurality of server nodes, and the block chain network is deployed with a test program client, the Blockchain performance analysis devices include:

Initiating module 10, for initiating a test request to the block chain network;

The processing module 20 is used to determine the performance index corresponding to the test request when detecting that the block chain network responds to the test request, and perform statistical analysis on the test process of the performance index;

The analysis module 30 is configured to analyze the performance of the block chain according to the results of the statistical analysis.

That is, in this embodiment, the blockchain network is deployed first, and the blockchain network deploys multiple server nodes; among them, the operating environment requirements of the blockchain network are met, and the blockchain interconnection network module is running, which can Servers of transaction core modules and data storage modules that reach a consensus are defined as blockchain server nodes; finally, a group of servers that meet the above requirements form a blockchain network. Among them, the server node includes two types of accounting nodes and participating nodes, and the specific number of accounting nodes and participating nodes is not limited, and can be set according to specific situations.

After deploying the blockchain network, continue to deploy the test program client in the blockchain network; wherein, it meets the operating environment requirements of the blockchain client software and can communicate with the blockchain network through a specific communication protocol The server that interacts and can send test requests according to the specified sending speed and sending quantity is defined as the test program client.

Wherein, the initiating module 10 is used to initiate a test request to the block chain network;

Before the initiating module 10 initiates a test request to the block chain network, the performance analysis device of the block chain also includes:

The reading module is used to read the preset smart contract;

The compilation module is used to compile the read smart contract;

A deployment module is configured to deploy the compiled smart contract into the block chain network, so that a test request is subsequently initiated to the block chain network based on the deployed smart contract.

In this embodiment, the preset smart contract is essentially a piece of code set in advance, so after the reading module reads the smart contract, the compiling module needs to execute the read smart contract Compile, and then the deployment module deploys the compiled smart contract into the block chain network, and subsequently, the initiation module 10 can initiate a performance index test request to the block chain network based on the deployed smart contract . The smart contract in this embodiment is equivalent to an interface, through which the initiating module 10 can initiate a performance index test request to the blockchain network.

In this embodiment, the initiating module 10 initiates a test request to the block chain network. It may be to initiate a test request for only one performance index at a time, or it may be to initiate a test request for multiple performance indexes at the same time, and each performance index When an indicator initiates a test request, multiple transactions or requests can be initiated for the performance indicator at one time. It should be understood that, in the case of a certain amount of time spent on executing the test process, the greater the total amount of transactions or requests initiated each time by the initiating module 10, the greater the load rate.

Wherein, the processing module 20 is configured to determine the performance index corresponding to the test request when detecting that the block chain network responds to the test request, and perform statistical analysis on the test process of the performance index;

In this embodiment, after the initiating module 10 initiates a test request to the block chain network, if it is detected that the block chain network responds to the test request, at this time, the processing module 20 determines that the test request corresponds to The performance indicators, and statistical analysis of the test process of the performance indicators. It should be understood that the block chain network responding to the test request essentially means confirming the receipt of the test request, that is, responding to the receipt of the test request.

In this embodiment, the performance indicators corresponding to the test request include multiple performance indicators, including block synchronization speed, consensus convergence time, transactional contract interface performance, non-transactional contract interface performance, block data synchronization performance, Block capacity, block packing speed, etc. Therefore, the step S20:

The implementation manners of the processing module 20 correspond to the following types:

1. If the performance index corresponding to the test request is the block synchronization speed, the time difference between the start time and the end time of the server node downloading the block in the blockchain network, and the number of transactions corresponding to the block are counted, and the The number of transactions divided by the time difference;

Among them, the test method is to monitor the time difference between the start of downloading the server node block and the completion of downloading and joining the block chain, and the number of transactions in the block;

The indicator calculation formula: the number of transactions in the block / the time difference consumed by the synchronization of the block, the indicator calculation formula: the number of transactions / per second.

2. If the performance index corresponding to the test request is consensus convergence time-consuming, count the start consensus time and end time of the block by the server nodes in the blockchain network;

Among them, it is defined as: the time difference between the start of the bookkeeping node executing the network consensus algorithm for a block and reaching the consensus; the indicator calculation formula: milliseconds.

It is worth noting that the time-consuming consensus convergence refers to: different server nodes in the blockchain network have added blocks, but due to the different synchronization sequences of the blocks of different nodes, the content of the blocks is different, and at this time Only one block needs to be added. Therefore, each node needs to perform consensus convergence to determine one of the blocks as the block finally added to the blockchain, and the consensus convergence time is the time for each node to reach consensus.

3. If the performance index corresponding to the test request is bandwidth, then count the bandwidth traffic of the server node during the test program client execution process, wherein the bandwidth includes incoming bandwidth and outgoing bandwidth;

4. If the performance index corresponding to the test request is memory consumption and CPU ratio, the memory capacity value and CPU ratio consumed by the process of the server node are counted during the execution of the test by the client of the test program;

5. If the performance index corresponding to the test request is a transaction-type contract interface, then count the total transaction amount of the transaction-type contract interface and the time difference when the transaction is packaged into a block, and divide the total transaction amount by the time difference;

Among them, the test method is that in blockchains of different scales, the client of the test program continuously initiates a large number of transaction requests to the bookkeeping nodes and participating nodes;

The indicator calculation formula is: total transaction volume / (the time when the last transaction was packaged and generated into a block - the earliest transaction initiation time), and the indicator unit: number of transactions / per second.

6. If the performance index corresponding to the test request is a non-transactional contract interface, count the total number of requests for the non-transactional contract interface and the time difference between request results, and divide the total amount of requests by the time difference;

Among them, the test method is to continuously initiate a large number of non-transactional RPC requests to participating nodes from the test program client in blockchains of different scales;

The indicator calculation formula is: total number of requests/(the return time of the last request sent by the test program client - the earliest request initiation time), and the indicator unit: number of requests/per second.

7. If the performance index corresponding to the test request is block data synchronization performance, monitor the number of block transactions of each server node in the blockchain and the block synchronization time difference, and divide the block transaction number by the synchronization time difference ;

Among them, the test method is to monitor the change of the block height of the participating nodes and calculate the block synchronization time difference;

Indicator calculation formula: number of block transactions / (block synchronization completion time - block generation time), indicator unit: number of transactions / per second.

It is worth noting that the change of the block height refers to: each node in the same block chain contains different numbers of blocks, therefore, the corresponding heights are different, then block synchronization is required to Implement blocks with the same height.

8. If the performance index corresponding to the test request is a block capacity query request, then count the number of bytes corresponding to the block generated by each server node in the block chain;

Among them, the test method is that in blockchains of different scales, the client of the test program continuously initiates a large number of transaction requests to the participating nodes, and queries the capacity of the generated blocks;

Indicator calculation formula: the number of bytes of block data, indicator unit: byte.

9. If the performance index corresponding to the test request is the block packaging speed, count the number of transactions in the block in the blockchain and the time it takes to generate the block packaging, and divide the transaction number by the time spent;

Among them, the test method is to monitor the packaging generation time interval of the corresponding block and the number of transactions in the block;

Indicator calculation formula: number of transactions in a block/time it takes for the block to be packaged; indicator unit: number of transactions/second.

10. Contract Interface Complexity

Definition: In the implementation of the interface method of the smart contract, a variable assignment is performed, which is defined as the contract interface complexity is 1. If there are N variable assignments in the interface, the contract interface complexity is N;

Indicator calculation formula: the number of contract interface variable assignments.

In this embodiment, according to the requirements of the test, the client side of the test program can be changed to issue batch requests with different load levels. And according to the implementation method of monitoring indicators in the following list, do a good job of data monitoring and recording, and change different networks and scenarios for repeated execution. where the table looks like this:

Wherein, the analysis module 30 is configured to analyze the performance of the block chain according to the results of statistical analysis.

In this embodiment, after determining the performance index corresponding to the test request and performing statistical analysis on the test process of the performance index, the analysis module 30 obtains the result of the statistical analysis and outputs a report, so as to The above results analyze the performance of the blockchain. Since the performance indicators mentioned above include various types, the analysis module 30 analyzes the performance of the block chain according to the results and also includes various implementations, specifically including:

1) When the output result is the number of transactions in the block and the time difference corresponding to downloading the block, analyze the impact of the number of transactions in the block on the data synchronization speed; specifically, analyze the number of transactions in the block, and the The influence of block data synchronization speed between server nodes.

2) When the output result is time-consuming for the consensus convergence of the server node on the block in the blockchain network, analyze the impact of the consensus performance of the server node on the performance of the blockchain; specifically, the consensus model parameters of the bookkeeping nodes can be adjusted to Analyze the impact of accounting node consensus performance on overall performance.

3) When the output result is the bandwidth flow of the server node, analyze the comparative relationship between the incoming bandwidth flow, transaction request initiation speed, and transaction request size, and analyze the comparative relationship between bandwidth flow, block synchronization speed, and single transaction size; Specifically, the comparative relationship between the incoming bandwidth requirements of accounting nodes and the transaction request initiation speed and transaction request size is analyzed, and the comparative relationship between bandwidth requirements and block synchronization speed and the size of a single transaction is analyzed.

4) When the output result is the memory consumption and the CPU ratio in the blockchain network, analyze the relationship between the memory consumption and the CPU ratio and the performance of the blockchain; specifically, record the CPU operation of the server node program , analyze the relationship between cpu and overall performance, record the memory consumption of server nodes, and analyze the relationship between cpu and overall performance.

Further, analyzing the performance of the blockchain according to the results may also include:

Adjust the network model and analyze the impact of the network model on the overall performance;

Adjust the RPC service performance parameters of server nodes and analyze their impact on overall performance;

Analyze the relationship between bandwidth and the number of server nodes directly connected to accounting nodes;

Increase or decrease the number of nodes in the network, analyze its relationship with overall performance, etc.

In this embodiment, it is equivalent to determining the definitions and calculation formulas of various performance indicators, performing statistical analysis on the data recorded during the execution process, obtaining the results of the above-mentioned performance indicators in different networks and scenarios, and finally making a comparative analysis .

The block chain performance analysis device proposed in this embodiment first initiates a test request to the block chain network, and when it is detected that the block chain network responds to the test request, determines the performance index corresponding to the test request, and Statistical analysis is performed on the test process of the performance index, and finally the performance of the block chain is analyzed according to the results of the statistical analysis. This embodiment improves the block chain by going deep into the bottom layer of the block chain network to analyze multiple performance indexes. Accuracy and comprehensiveness of network performance analysis.

Further, in order to improve the security of the performance analysis of the blockchain, based on the first embodiment, a second embodiment of the device for analyzing the performance of the blockchain of the present invention is proposed.

In this embodiment, the server nodes in the block chain network include accounting nodes and participating nodes. Referring to FIG. 4, the performance analysis device of the block chain also includes:

A determining module 40, configured to determine the value of the network scale according to the number of accounting nodes and participating nodes in the blockchain network;

The generation module 50 is used to generate the name of the block chain network according to the numerical value of the network scale and the number of bookkeeping nodes; wherein, the naming rule is set to WN-CM, WN represents the numerical value of the network scale, and CM represents the bookkeeping node. The number of account nodes.

In this embodiment, since the server nodes in the block chain network include bookkeeping nodes and participating nodes, in calculating the sum of the number of bookkeeping nodes and the number of participating nodes in the block chain network, the determination module 40 The value of the network scale in the blockchain network can be determined according to the sum of the number of bookkeeping nodes and the number of participating nodes. For example: in the blockchain network, there are a total of four participating nodes A, B, D, and E, and C A bookkeeping node. Therefore, by definition, the network size is W5.

Index calculation formula: number of bookkeeping nodes + number of participating nodes; definition description method: W (number of bookkeeping nodes + number of participating nodes).

After the determining module 40 determines the value of the network scale in the blockchain network, the generating module 50 generates the name of the blockchain network according to the value of the network scale and the number of bookkeeping nodes. Preferably, the naming rule is set to WN-CM, where WN represents the value of the network scale, and CM represents the number of billing nodes. Taking the above example as an example, it can be determined that there is one billing node. Therefore, the final The name of the above blockchain network is: W5-C1.

Through this naming rule, the blockchain network can be clearly and accurately described, so that the naming of each blockchain network can be distinguished. Even if there are multiple blockchains communicating at the same time, they will not be indistinguishable due to names. This leads to an error in the communication process.

It should be noted that, in this document, the terms "comprising", "comprising" or any other variation thereof are intended to cover a non-exclusive inclusion such that a process, method, article or apparatus comprising a set of elements includes not only those elements, It also includes other elements that are not expressly listed, or that are inherent to the process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus comprising that element.

The serial numbers of the above embodiments of the present invention are for description only, and do not represent the advantages and disadvantages of the embodiments.

Through the description of the above embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus a necessary general-purpose hardware platform, and of course also by hardware, but in many cases the former is better implementation. Based on such an understanding, the essence of the technical solution of the present invention or the part that contributes to the prior art can be embodied in the form of software products, and the computer software products are stored in a storage medium (such as ROM/RAM, disk, CD) contains several instructions to make a terminal device (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) execute the methods described in various embodiments of the present invention.

The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the description of the present invention and the contents of the accompanying drawings, or directly or indirectly used in other related technical fields , are all included in the scope of patent protection of the present invention in the same way.

Claims (10)

1. a kind of method for analyzing performance of block chain is applied in block chain network, the block chain network includes multiple services Device node, which is characterized in that the block chain network is deployed with test program client, the method for analyzing performance of the block chain Including：

After intelligent contract after obtaining compiling, the intelligent contract after compiling is deployed in the block chain network, with after an action of the bowels The continuous intelligent contract based on deployment initiates test request to the block chain network；

Test program client initiates test request to block chain network；

When detecting that the block chain network responds the test request, the corresponding performance indicator of the test request is determined, And it is for statistical analysis to the test process of the performance indicator；

The performance of block chain according to the interpretation of result of statistical analysis.

2. the method for analyzing performance of block chain as described in claim 1, which is characterized in that intelligence after obtaining compiling After contract, the intelligent contract after compiling is deployed in the block chain network, so as to the subsequent intelligent contract based on deployment to Before the block chain network initiates the step of test request, the method for analyzing performance of the block chain further includes：

The test program client reads preset intelligent contract；

The intelligent contract of reading is compiled.

3. the method for analyzing performance of block chain as described in claim 1, which is characterized in that the determination test request pair The performance indicator answered, and the step for statistical analysis to the test process of the performance indicator includes：

If the corresponding performance indicator of the test request is block synchronizing speed, count in block chain network under server node Carry time difference with the end time at the beginning of block, and the transaction stroke count of corresponding block, by the transaction stroke count divided by The time difference；

If the corresponding performance indicator of the test request is that common recognition convergence is time-consuming, server node pair in block chain network is counted Block starts know together time and end time；

If the corresponding performance indicator of the test request is bandwidth, statistical test programmatic client executes to be serviced in test process The bandwidth traffic of device node, wherein the bandwidth includes into bandwidth and out bandwidth；

If the corresponding performance indicator of the test request is memory consumption and CPU accounting, statistical test programmatic client is held In row test process, the consumed memory size value of the process of server node and CPU accounting.

4. the method for analyzing performance of block chain as claimed in claim 3, which is characterized in that described according to the interpretation of result institute The step of stating the performance of block chain include：

In the transaction stroke count and downloading block corresponding time difference that the result of output is block, stroke count of trading in block is analyzed Influence to the block synchronizing speed；

It is that server node restrains time-consuming to the common recognition of block in block chain network in the result of output, Analysis server node is total Knowing performance influences the performance of block chain；

When the result of output is the bandwidth traffic of server node, analyze into bandwidth traffic and transaction request launch speed and friendship The easily relativity of request size, and analyze the relativity of bandwidth traffic and block synchronizing speed and single transaction size；

When the result of output is memory consumption and CPU accounting in block chain network, the memory consumption and CPU are analyzed The relationship of accounting and the performance of block chain.

5. the method for analyzing performance of block chain according to any one of claims 1-4, which is characterized in that the block chain network In server node include accounting nodes and participate in node, the method for analyzing performance of the block chain further includes：

According in the block chain network, the quantity of accounting nodes and participation node determines the numerical value of network size；

According to the number of the numerical value of network size and accounting nodes, the title of the block chain network is generated；Wherein, name rule It is then set as WN-CM, WN indicates that the numerical value of network size number, CM indicate the number of accounting nodes.

6. a kind of performance evaluation device of block chain is applied in block chain network, the block chain network includes multiple services Device node, which is characterized in that the block chain network is deployed with test program client, the performance evaluation device of the block chain Including：

Intelligent contract after compiling is deployed to the block chain after intelligent contract after obtaining compiling by deployment module In network, so that the subsequent intelligent contract based on deployment initiates test request to the block chain network；

Initiation module, for initiating test request to block chain network；

Processing module, for determining the test request pair when detecting that the block chain network responds the test request The performance indicator answered, and it is for statistical analysis to the test process of the performance indicator；

Analysis module, the performance for block chain described in the interpretation of result according to statistical analysis.

7. the performance evaluation device of block chain as claimed in claim 6, which is characterized in that the performance evaluation of the block chain fills It sets and further includes：

Read module, for reading preset intelligent contract；

Collector, for being compiled to the intelligent contract of reading.

8. the performance evaluation device of block chain as claimed in claim 6, which is characterized in that the processing module is also used to,

If the corresponding performance indicator of the test request is block synchronizing speed, count in block chain network under server node Carry time difference with the end time at the beginning of block, and the transaction stroke count of corresponding block, by the transaction stroke count divided by The time difference；

If the corresponding performance indicator of the test request is that common recognition convergence is time-consuming, server node pair in block chain network is counted Block starts know together time and end time；

If the corresponding performance indicator of the test request is bandwidth, statistical test programmatic client executes to be serviced in test process The bandwidth traffic of device node, wherein the bandwidth includes into bandwidth and out bandwidth；

If the corresponding performance indicator of the test request is memory consumption and CPU accounting, statistical test programmatic client is held In row test process, the consumed memory size value of the process of server node and CPU accounting.

9. the performance evaluation device of block chain as claimed in claim 8, which is characterized in that the analysis module is also used to,

In the transaction stroke count and downloading block corresponding time difference that the result of output is block, stroke count of trading in block is analyzed Influence to the block synchronizing speed；

It is that server node restrains time-consuming to the common recognition of block in block chain network in the result of output, Analysis server node is total Knowing performance influences the performance of block chain；

When the result of output is the bandwidth traffic of server node, analyze into bandwidth traffic and transaction request launch speed and friendship The easily relativity of request size, and analyze the relativity of bandwidth traffic and block synchronizing speed and single transaction size；

When the result of output is memory consumption and CPU accounting in block chain network, the memory consumption and CPU are analyzed The relationship of accounting and the performance of block chain.

10. the performance evaluation device of block chain as claim in any one of claims 6-9, which is characterized in that the block link network Server node in network includes accounting nodes and participates in node, and the performance evaluation device of the block chain further includes：

Determining module, for according in the block chain network, accounting nodes and the quantity for participating in node to determine network size Numerical value；

Generation module, for generating the name of the block chain network according to the numerical value of network size and the number of accounting nodes Claim；Wherein, naming rule is set as WN-CM, and WN indicates that the numerical value of network size number, CM indicate the number of accounting nodes.