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############################################################################

#  misc/diskbench.mk

#

#  Part of the STXXL. See http://stxxl.sourceforge.net

#

#  Copyright (C) 2008 Andreas Beckmann <beckmann@cs.uni-frankfurt.de>

#

#  Distributed under the Boost Software License, Version 1.0.

#  (See accompanying file LICENSE_1_0.txt or copy at

#  http://www.boost.org/LICENSE_1_0.txt)

############################################################################



HOST		?= unknown

SIZE		?= 100	# GB



disk2file	?= /stxxl/sd$1/stxxl



DISKS_1by1	?= a b c d

DISKS_a		?= a

DISKS_ab	?= a b

DISKS_abcd	?= a b c d



DISKS		?= abcd $(DISKS_1by1) ab



pipefail		?= set -o pipefail;



define do-some-disks

	-$(pipefail) \

	$(RECORD_LOAD_IOSTAT) \

	./benchmark_disks.stxxl.bin 0 $(SIZE) $(foreach d,$(DISKS_$*),$(call disk2file,$d)) | tee $@

endef



$(HOST)-%.cr.log:

	$(RM) $(foreach d,$(DISKS_$*),$(call disk2file,$d))

	$(do-some-disks)



$(HOST)-%.wr.log:

	$(do-some-disks)



all: cr wr



cr: $(foreach d,$(DISKS_1by1),$(HOST)-$d.cr.log)

wr: $(foreach d,$(DISKS),$(HOST)-$d.wr.log)



plot: $(HOST).gnuplot

	gnuplot $<



# $1 = logfile, $2 = column

extract_average	= $(if $(wildcard $1),$(shell tail -n 1 $1 | awk '{ print $$($2+1) }'),......)



# $1 = logfile, $2 = disk, $3 = column, $4 = label

define plotline

	echo '        "$1" using ($$3/1024):($$$3) w l title "$2 $4 ($(call extract_average,$1,$3))", \' >> $@ ;

endef



# $1 = logfile, $2 = disk

define plotline-cr1

	$(if $(wildcard $1),$(call plotline,$1,$2,7,cr1))

endef

define plotline-cr

	$(call plotline,$1,$2,7,cr)

endef

define plotline-wr

	$(call plotline,$1,$2,7,wr)

endef

define plotline-rd

	$(call plotline,$1,$2,14,rd)

endef



# $1 = disk letter

disk2label	?= sd$1

disks2label	?= sd[$1]



DISKNAME	?= unknown disk

PLOTXMAX	?= 475

PLOTYMAX	?= 120



$(HOST).gnuplot: Makefile $(wildcard *.log)

	$(RM) $@

	echo 'set title "STXXL Disk Benchmark $(DISKNAME) @ $(HOST)"' >> $@

	echo 'set xlabel "Disk offset [GB]"' >> $@

	echo 'set ylabel "Bandwidth per disk [MB/s]"' >> $@

	echo '' >> $@



	echo 'plot [0:$(PLOTXMAX)] [0:$(PLOTYMAX)] \' >> $@

	$(foreach d,$(DISKS_1by1),\

		$(call plotline-cr1,$(HOST)-$d.cr1.log,$(call disk2label,$d)) \

		$(call plotline-cr,$(HOST)-$d.cr.log,$(call disk2label,$d)) \

		$(call plotline-wr,$(HOST)-$d.wr.log,$(call disk2label,$d)) \

		$(call plotline-rd,$(HOST)-$d.wr.log,$(call disk2label,$d)))

	$(foreach d,$(filter-out $(DISKS_1by1),$(DISKS)),\

		$(call plotline-wr,$(HOST)-$d.wr.log,$(call disks2label,$d)) \

		$(call plotline-rd,$(HOST)-$d.wr.log,$(call disks2label,$d)))

	echo '        "nothing" notitle' >> $@



	echo '' >> $@

	echo 'pause mouse' >> $@

	echo '' >> $@

	echo 'set title "STXXL Disk Benchmark $(DISKNAME) \\@ $(HOST)"' >> $@

	echo 'set term postscript enhanced color' >> $@

	echo 'set output "$(HOST).ps"' >> $@

	echo 'replot' >> $@



-include iostat-plot.mk