CN103593226A - Method for improving IO performance of disc of virtual machine - Google Patents
Method for improving IO performance of disc of virtual machine Download PDFInfo
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- CN103593226A CN103593226A CN201310539512.0A CN201310539512A CN103593226A CN 103593226 A CN103593226 A CN 103593226A CN 201310539512 A CN201310539512 A CN 201310539512A CN 103593226 A CN103593226 A CN 103593226A
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- 238000011056 performance test Methods 0.000 description 1
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Abstract
The invention relates to the field of cloud computing technology, in particular to a method for improving IO performance of a disc of a virtual machine. According to the method, a special file system is utilized, a part of an internal storage is simulated into the disc, a virtual hard disk which is used by the virtual machine, exists in a file form and is stored in a host machine physical hard disk is placed in the file system simulated by the internal storage, and the high-speed read-write performance of the internal storage is utilized, so that the goal of greatly improving the IO performance of the disc is achieved. The method includes the steps that firstly, the file system simulated by the internal storage is established, and then the internal storage file system is mounted on an appropriate system route; secondly, virtual hard disk files of the virtual machine are copied into a catalogue; eventually, a route of the virtual hard disc files of the virtual machine is modified into the route. By the utilization of the method, the IO performance of the disc of the virtual machine can be remarkably improved, and the method can be used for establishing the virtual machine to support frequent read-write application of the disc.
Description
Technical field
The present invention relates to cloud computing technology field, especially a kind of method that improves virtual machine disk I/O performance.
Background technology
, more fine granularity and more flexibly resource distribution and management safer in order to realize in cloud computing cluster the inside, need to use virtual machine conventionally; And the disk I/O performance of the virtual machine bottleneck of virtual machine performance often, and can not by increasing hard disk, improve simply; Because can run into the problems such as cost, resource management complexity, resource distribution.Meanwhile, the high-performance of the relative ordinary magnetic disc of internal memory and even solid magnetic disc and relative cheap cost, make it to become the good breach that solves virtual machine performance problem.
Summary of the invention
The technical matters that the present invention solves is to provide a kind of method of improving virtual machine disk I/O performance; Can effectively improve virtual machine disk I/O (input, output) performance.
The deal with problems technical scheme of above-mentioned technical matters of the present invention is:
Comprise following basic step:
Step 1: create memory file system;
Step 2: carry memory file system;
Step 3: virtual machine virtual hard disk file is put in memory file system;
Step 4: the path of virtual hard disk file in configuring virtual machine configuration file;
Step 5: start virtual machine.
Described memory file system is preserved virtual machine as need hard disk is changed, can use the virtual hard disk form of the support cow technology such as qcow2, by the virtual hard disk based on being placed in memory file system, create one and derive from mirror image, and it is placed on to persistent storage device as in hard disk.
Described establishment memory file system be by virtual machine virtual hard disk file put carry memory file system in; Based on virtual hard disk file, utilize cow technology to derive a virtual hard disk that is placed on non-volatile memory device and use to virtual machine, thereby guarantee not losing and avoiding a large amount of consumption to internal memory of data writing.
The COW technology of combined with virtual hard disk of the present invention, an available public virtual hard disk that is placed in memory file system (subregion), for many virtual machines provide service simultaneously, reaches the lifting of many virtual machine disk I/O performances with few memory consumption; Can significantly promote the disk I/O performance of virtual machine.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further described:
Accompanying drawing is basic operation process flow diagram of the present invention.
Embodiment
As shown in the figure, the present invention is based on linux, kvm platform, adopting qcow2 file layout and tmpfs file system is example, and concrete operation step is as follows.
1, create one for the catalogue of carry file system:
2, create memory file system carry, can specify size; Here memory file system adopts tmpfs:
3, create virtual hard disk vm_disk.qcow2, size is 3G:
4, the virtual hard disk creating based on previous step creates and is placed on the derivation hard disk mirror-image on non-volatile memory device:
5, revise virtual machine configuration, the configuration file of libvirt of take is here example:
Suppose that configuration file is called libvirt.xml, in <device> section, revise virtual hard disk path,
6, start virtual machine:
Virtual machine internal disk IO performance test shows, the readwrite performance that is placed on the virtual hard disk in memory file system almost has the raising of ten times.The peak velocity of reading continuously can reach 1221.9MB/s, and average velocity reaches 952MB/s; With machine-readable average velocity 632MB/s.The speed of reading continuously (952MB/s) and relatively approaching with machine-readable speed (632MB/s), also matches with the random-access feature of internal memory.
Claims (3)
1. a method that improves virtual machine disk I/O performance, is characterized in that:
Comprise following basic step:
Step 1: create memory file system;
Step 2: carry memory file system;
Step 3: virtual machine virtual hard disk file is put in memory file system;
Step 4: the path of virtual hard disk file in configuring virtual machine configuration file;
Step 5: start virtual machine.
2. the method for raising virtual machine disk I/O performance according to claim 1, it is characterized in that: described memory file system is preserved virtual machine as need hard disk is changed, can use the virtual hard disk form of the support cow technology such as qcow2, by the virtual hard disk based on being placed in memory file system, create one and derive from mirror image, and it is placed on to persistent storage device as in hard disk.
3. the method for raising virtual machine disk I/O performance according to claim 1 and 2, is characterized in that: described establishment memory file system be by virtual machine virtual hard disk file put carry memory file system in; Based on virtual hard disk file, utilize cow technology to derive a virtual hard disk that is placed on non-volatile memory device and use to virtual machine, thereby guarantee not losing and avoiding a large amount of consumption to internal memory of data writing.
Priority Applications (1)
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| CN201310539512.0A CN103593226A (en) | 2013-11-04 | 2013-11-04 | Method for improving IO performance of disc of virtual machine |
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| CN201310539512.0A CN103593226A (en) | 2013-11-04 | 2013-11-04 | Method for improving IO performance of disc of virtual machine |
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| CN103593226A true CN103593226A (en) | 2014-02-19 |
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| CN201310539512.0A Pending CN103593226A (en) | 2013-11-04 | 2013-11-04 | Method for improving IO performance of disc of virtual machine |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104503821A (en) * | 2014-12-11 | 2015-04-08 | 国云科技股份有限公司 | A method for calculating the IO speed of a virtual disk |
| CN105353985A (en) * | 2015-11-03 | 2016-02-24 | 国云科技股份有限公司 | A method to improve the reading speed of virtual machine temporary files |
| CN105511952A (en) * | 2014-09-22 | 2016-04-20 | 苏宁云商集团股份有限公司 | Resource self-migration method and system based on cloud computing platform |
| CN105511938A (en) * | 2015-11-23 | 2016-04-20 | 国云科技股份有限公司 | Virtual disk construction method |
| CN106227473A (en) * | 2016-09-27 | 2016-12-14 | 天脉聚源(北京)传媒科技有限公司 | A kind of using internal memory as the implementation method of disk read-write and device |
| CN106325974A (en) * | 2016-08-11 | 2017-01-11 | 浪潮(北京)电子信息产业有限公司 | Virtualization IO performance optimization method and system |
| CN106445633A (en) * | 2016-09-13 | 2017-02-22 | 中国电子科技集团公司第三十二研究所 | Method and system for improving performance of virtual machine through NVRAM |
| CN106933653A (en) * | 2017-03-16 | 2017-07-07 | 郑州云海信息技术有限公司 | A kind of data file storage method of virtual machine, device and KVM virtual machines |
| CN108846136A (en) * | 2018-07-09 | 2018-11-20 | 郑州云海信息技术有限公司 | A kind of optimization method of distributed type assemblies, device, system and readable storage medium storing program for executing |
| CN108984299A (en) * | 2018-06-29 | 2018-12-11 | 郑州云海信息技术有限公司 | A kind of optimization method of distributed type assemblies, device, system and readable storage medium storing program for executing |
| CN111708488A (en) * | 2020-05-26 | 2020-09-25 | 苏州浪潮智能科技有限公司 | A method and device for Ceph performance optimization based on distributed memory disk |
| CN112860493A (en) * | 2021-02-03 | 2021-05-28 | 广东中兴新支点技术有限公司 | Linux virtual machine cloud packing partition chain-breaking protection method, system and medium |
| CN114238254A (en) * | 2021-12-20 | 2022-03-25 | 北京天融信网络安全技术有限公司 | Shared access method, device and storage medium of file system |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105511952A (en) * | 2014-09-22 | 2016-04-20 | 苏宁云商集团股份有限公司 | Resource self-migration method and system based on cloud computing platform |
| CN105511952B (en) * | 2014-09-22 | 2020-02-04 | 苏宁云计算有限公司 | Resource self-migration method and system based on cloud computing platform |
| CN104503821A (en) * | 2014-12-11 | 2015-04-08 | 国云科技股份有限公司 | A method for calculating the IO speed of a virtual disk |
| CN105353985A (en) * | 2015-11-03 | 2016-02-24 | 国云科技股份有限公司 | A method to improve the reading speed of virtual machine temporary files |
| CN105511938A (en) * | 2015-11-23 | 2016-04-20 | 国云科技股份有限公司 | Virtual disk construction method |
| CN106325974B (en) * | 2016-08-11 | 2020-02-07 | 浪潮(北京)电子信息产业有限公司 | Virtualization IO performance optimization method and system |
| CN106325974A (en) * | 2016-08-11 | 2017-01-11 | 浪潮(北京)电子信息产业有限公司 | Virtualization IO performance optimization method and system |
| CN106445633A (en) * | 2016-09-13 | 2017-02-22 | 中国电子科技集团公司第三十二研究所 | Method and system for improving performance of virtual machine through NVRAM |
| CN106227473A (en) * | 2016-09-27 | 2016-12-14 | 天脉聚源(北京)传媒科技有限公司 | A kind of using internal memory as the implementation method of disk read-write and device |
| CN106933653A (en) * | 2017-03-16 | 2017-07-07 | 郑州云海信息技术有限公司 | A kind of data file storage method of virtual machine, device and KVM virtual machines |
| CN108984299A (en) * | 2018-06-29 | 2018-12-11 | 郑州云海信息技术有限公司 | A kind of optimization method of distributed type assemblies, device, system and readable storage medium storing program for executing |
| CN108846136A (en) * | 2018-07-09 | 2018-11-20 | 郑州云海信息技术有限公司 | A kind of optimization method of distributed type assemblies, device, system and readable storage medium storing program for executing |
| CN111708488A (en) * | 2020-05-26 | 2020-09-25 | 苏州浪潮智能科技有限公司 | A method and device for Ceph performance optimization based on distributed memory disk |
| CN111708488B (en) * | 2020-05-26 | 2023-01-06 | 苏州浪潮智能科技有限公司 | Distributed memory disk-based Ceph performance optimization method and device |
| CN112860493A (en) * | 2021-02-03 | 2021-05-28 | 广东中兴新支点技术有限公司 | Linux virtual machine cloud packing partition chain-breaking protection method, system and medium |
| CN112860493B (en) * | 2021-02-03 | 2022-09-27 | 广东中兴新支点技术有限公司 | Linux virtual machine cloud packing partition chain-breaking protection method, system and medium |
| CN114238254A (en) * | 2021-12-20 | 2022-03-25 | 北京天融信网络安全技术有限公司 | Shared access method, device and storage medium of file system |
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Application publication date: 20140219 |