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Reproducing CrystalDiskMark tests with fio - fixes for https://unix.stackexchange.com/revisions/480191/9
#!/bin/bash
# This script is based on https://unix.stackexchange.com/revisions/480191/9 .
# The following changes proved to be necessary to make it work on CentOS 7:
# * removed disk info (model, size) - not very useful, might not work in many cases.
# * using "bw" instead of "bw_bytes" to support fio version 3.1 (those availible through yum @base)
# * escaping exclamation mark in sed command
# * the ".fiomark.txt" is not auto-removed
LOOPS=5 #How many times to run each test
SIZE=1024 #Size of each test, multiples of 32 recommended for Q32 tests to give the most accurate results.
WRITEZERO=0 #Set whether to write zeroes or randoms to testfile (random is the default for both fio and crystaldiskmark); dd benchmarks typically only write zeroes which is why there can be a speed difference.
QSIZE=$(($SIZE / 32)) #Size of Q32Seq tests
SIZE+=m
QSIZE+=m
if [ -z $1 ]; then
TARGET=$HOME
echo "Defaulting to $TARGET for testing"
else
TARGET="$1"
echo "Testing in $TARGET"
fi
echo "Configuration: Size:$SIZE Loops:$LOOPS Write Only Zeroes:$WRITEZERO
Running Benchmark, please wait...
"
fio --loops=$LOOPS --size=$SIZE --filename="$TARGET/.fiomark.tmp" --stonewall --ioengine=libaio --direct=1 --zero_buffers=$WRITEZERO --output-format=json \
--name=Bufread --loops=1 --bs=$SIZE --iodepth=1 --numjobs=1 --rw=readwrite \
--name=Seqread --bs=$SIZE --iodepth=1 --numjobs=1 --rw=read \
--name=Seqwrite --bs=$SIZE --iodepth=1 --numjobs=1 --rw=write \
--name=512kread --bs=512k --iodepth=1 --numjobs=1 --rw=read \
--name=512kwrite --bs=512k --iodepth=1 --numjobs=1 --rw=write \
--name=SeqQ32T1read --bs=$QSIZE --iodepth=32 --numjobs=1 --rw=read \
--name=SeqQ32T1write --bs=$QSIZE --iodepth=32 --numjobs=1 --rw=write \
--name=4kread --bs=4k --iodepth=1 --numjobs=1 --rw=randread \
--name=4kwrite --bs=4k --iodepth=1 --numjobs=1 --rw=randwrite \
--name=4kQ32T1read --bs=4k --iodepth=32 --numjobs=1 --rw=randread \
--name=4kQ32T1write --bs=4k --iodepth=32 --numjobs=1 --rw=randwrite \
--name=4kQ8T8read --bs=4k --iodepth=8 --numjobs=8 --rw=randread \
--name=4kQ8T8write --bs=4k --iodepth=8 --numjobs=8 --rw=randwrite > "$TARGET/.fiomark.txt"
SEQR="$(($(cat "$TARGET/.fiomark.txt" | grep -A15 '"name" : "Seqread"' | grep bw | cut -d: -f2 | sed s:,::g)/1024))MB/s IOPS=$(cat "$TARGET/.fiomark.txt" | grep -A15 '"name" : "Seqread"' | grep -m1 iops | cut -d: -f2 | cut -d. -f1 | sed 's: ::g')"
SEQW="$(($(cat "$TARGET/.fiomark.txt" | grep -A80 '"name" : "Seqwrite"' | grep bw | grep -v '_' | sed 2\!d | cut -d: -f2 | sed s:,::g)/1024))MB/s IOPS=$(cat "$TARGET/.fiomark.txt" | grep -A80 '"name" : "Seqwrite"' | grep iops | sed '7!d' | cut -d: -f2 | cut -d. -f1 | sed 's: ::g')"
F12KR="$(($(cat "$TARGET/.fiomark.txt" | grep -A15 '"name" : "512kread"' | grep bw | cut -d: -f2 | sed s:,::g)/1024))MB/s IOPS=$(cat "$TARGET/.fiomark.txt" | grep -A15 '"name" : "512kread"' | grep -m1 iops | cut -d: -f2 | cut -d. -f1 | sed 's: ::g')"
F12KW="$(($(cat "$TARGET/.fiomark.txt" | grep -A80 '"name" : "512kwrite"' | grep bw | grep -v '_' | sed 2\!d | cut -d: -f2 | sed s:,::g)/1024))MB/s IOPS=$(cat "$TARGET/.fiomark.txt" | grep -A80 '"name" : "512kwrite"' | grep iops | sed '7!d' | cut -d: -f2 | cut -d. -f1 | sed 's: ::g')"
SEQ32R="$(($(cat "$TARGET/.fiomark.txt" | grep -A15 '"name" : "SeqQ32T1read"' | grep bw | cut -d: -f2 | sed s:,::g)/1024))MB/s IOPS=$(cat "$TARGET/.fiomark.txt" | grep -A15 '"name" : "SeqQ32T1read"' | grep -m1 iops | cut -d: -f2 | cut -d. -f1 | sed 's: ::g')"
SEQ32W="$(($(cat "$TARGET/.fiomark.txt" | grep -A80 '"name" : "SeqQ32T1write"' | grep bw | grep -v '_' | sed 2\!d | cut -d: -f2 | sed s:,::g)/1024))MB/s IOPS=$(cat "$TARGET/.fiomark.txt" | grep -A80 '"name" : "SeqQ32T1write"' | grep iops | sed '7!d' | cut -d: -f2 | cut -d. -f1 | sed 's: ::g')"
FKR="$(($(cat "$TARGET/.fiomark.txt" | grep -A15 '"name" : "4kread"' | grep bw | cut -d: -f2 | sed s:,::g)/1024))MB/s IOPS=$(cat "$TARGET/.fiomark.txt" | grep -A15 '"name" : "4kread"' | grep -m1 iops | cut -d: -f2 | cut -d. -f1 | sed 's: ::g')"
FKW="$(($(cat "$TARGET/.fiomark.txt" | grep -A80 '"name" : "4kwrite"' | grep bw | grep -v '_' | sed 2\!d | cut -d: -f2 | sed s:,::g)/1024))MB/s IOPS=$(cat "$TARGET/.fiomark.txt" | grep -A80 '"name" : "4kwrite"' | grep iops | sed '7!d' | cut -d: -f2 | cut -d. -f1 | sed 's: ::g')"
FK32R="$(($(cat "$TARGET/.fiomark.txt" | grep -A15 '"name" : "4kQ32T1read"' | grep bw | cut -d: -f2 | sed s:,::g)/1024))MB/s IOPS=$(cat "$TARGET/.fiomark.txt" | grep -A15 '"name" : "4kQ32T1read"' | grep -m1 iops | cut -d: -f2 | cut -d. -f1 | sed 's: ::g')"
FK32W="$(($(cat "$TARGET/.fiomark.txt" | grep -A80 '"name" : "4kQ32T1write"' | grep bw | grep -v '_' | sed 2\!d | cut -d: -f2 | sed s:,::g)/1024))MB/s IOPS=$(cat "$TARGET/.fiomark.txt" | grep -A80 '"name" : "4kQ32T1write"' | grep iops | sed '7!d' | cut -d: -f2 | cut -d. -f1 | sed 's: ::g')"
FK8R="$(($(cat "$TARGET/.fiomark.txt" | grep -A15 '"name" : "4kQ8T8read"' | grep bw | sed 's/ "bw" : //g' | sed 's:,::g' | awk '{ SUM += $1} END { print SUM }')/1024))MB/s IOPS=$(cat "$TARGET/.fiomark.txt" | grep -A15 '"name" : "4kQ8T8read"' | grep iops | sed 's/ "iops" : //g' | sed 's:,::g' | awk '{ SUM += $1} END { print SUM }' | cut -d. -f1)"
FK8W="$(($(cat "$TARGET/.fiomark.txt" | grep -A80 '"name" : "4kQ8T8write"' | grep bw | sed 's/ "bw" : //g' | sed 's:,::g' | awk '{ SUM += $1} END { print SUM }')/1024))MB/s IOPS=$(cat "$TARGET/.fiomark.txt" | grep -A80 '"name" : "4kQ8T8write"' | grep '"iops" '| sed 's/ "iops" : //g' | sed 's:,::g' | awk '{ SUM += $1} END { print SUM }' | cut -d. -f1)"
echo -e "
Results:
\033[0;33m
Sequential Read: $SEQR
Sequential Write: $SEQW
\033[0;32m
512KB Read: $F12KR
512KB Write: $F12KW
\033[1;36m
Sequential Q32T1 Read: $SEQ32R
Sequential Q32T1 Write: $SEQ32W
\033[0;36m
4KB Read: $FKR
4KB Write: $FKW
\033[1;33m
4KB Q32T1 Read: $FK32R
4KB Q32T1 Write: $FK32W
\033[1;35m
4KB Q8T8 Read: $FK8R
4KB Q8T8 Write: $FK8W
"
# rm "$TARGET/.fiomark.txt"
rm "$TARGET/.fiomark.tmp"
@snizovtsev
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snizovtsev commented Dec 23, 2020

In my gist, I've updated this script to use jq tool for json parsing:

QUERY='def read_bw(name): [.jobs[] | select(.jobname==name+"read").read.bw] | add / 1024 | floor;
       def read_iops(name): [.jobs[] | select(.jobname==name+"read").read.iops] | add | floor;
       def write_bw(name): [.jobs[] | select(.jobname==name+"write").write.bw] | add / 1024 | floor;
       def write_iops(name): [.jobs[] | select(.jobname==name+"write").write.iops] | add | floor;
       def job_summary(name): read_bw(name), read_iops(name), write_bw(name), write_iops(name);
       job_summary("Seq"), job_summary("512k"), job_summary("SeqQ32T1"),
       job_summary("4k"), job_summary("4kQ32T1"), job_summary("4kQ8T8")'
read -d '\n' -ra V <<< "$(jq "$QUERY" "$TARGET/.fiomark.txt")"

I think this makes it much more maintainable and should solve problems like:
553046/1024: syntax error in expression (error token is "553046/1024")

@Blackpaw
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@BobbyWibowo
It is failing because fio is returning two rows that match the bw pattern (bw and bw_bytes) for the --rw=read command. We need to exclude those results, using something like grep -v '_'.

@qqgg231
Your issue must be being caused by a newer version of fio than this script originally worked with, as I'm experiencing the same issue. I had to break the executions of fio into multiple commands.

Here is an updated version of this script that accounts for both of my above statements (tested in CentOS 7 minimal with vim, fio and df installed): https://gist.github.com/BAGELreflex/c04e7a25d64e989cbd9376a9134b8f6d

just using "grep -w bw" fixes the problem.

@AlbyGNinja
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AlbyGNinja commented May 16, 2023

I got these errors on almost everytime try to assign READ values:
cdm_fio.sh: line 47: 3770160898
3681797/1024: syntax error in expression (error token is "3681797/1024")
cdm_fio.sh: line 49: 2653835452
2591636/1024: syntax error in expression (error token is "2591636/1024")
cdm_fio.sh: line 51: 4006499343
3912597/1024: syntax error in expression (error token is "3912597/1024")
cdm_fio.sh: line 53: 98398290
96092/1024: syntax error in expression (error token is "96092/1024")
cdm_fio.sh: line 55: 279897248
273337/1024: syntax error in expression (error token is "273337/1024")
Results:
Sequential Read:
Sequential Write: 184MB/s IOPS=0
512KB Read:
512KB Write: 244MB/s IOPS=488
Sequential Q32T1 Read:
Sequential Q32T1 Write: 137MB/s IOPS=4
4KB Read:
4KB Write: 75MB/s IOPS=19244
4KB Q32T1 Read:
4KB Q32T1 Write: 116MB/s IOPS=29714
4KB Q8T8 Read: 599MB/s IOPS=153598
4KB Q8T8 Write: 138MB/s IOPS=35407

I forgot to mention I'm on Ubuntu server 22.04

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