fioというコマンドで、iopsなど計測してみる。

# yum -y install fio

fio version 2とfio version 3はちょっと動作が違うため

# yum install epel-release
# yum --enablerepo=epel-testing install fio

fio-3.1

# mkdir fio.3-1
# cd fio.3-1
# tar zxvf fio.3-1.tar.gz
# ./configure
# make
# make install

libaio-devel

yum install libaio-devel

# fio -filename=/tmp/fio2g -direct=1 -rw=write -bs=4k -size=2G -numjobs=64 -runtime=10 -group_reporting -name=fio

# fio -filename=/tmp/fio2g -direct=1 -rw=randwrite -bs=4k -size=2G -numjobs=64 -runtime=10 -group_reporting -name=fio

# fio -filename=/tmp/fio2g -direct=1 -rw=read -bs=4k -size=2G -numjobs=64 -runtime=10 -group_reporting -name=fio

# fio -filename=/tmp/fio2g -direct=1 -rw=randread -bs=4k -size=2G -numjobs=64 -runtime=10 -group_reporting -name=fio

下記はシーケンシャルwriteの一例

ブロックサイズ4kで
iops: 13209
スループット: 52840KB/s
レイテンシ: 10msec
※レイテンシは一番パーセンテージの高いものを見る

# fio -filename=/tmp/fio2g -direct=1 -rw=write -bs=4k -size=2G -numjobs=64 -runtime=10 -group_reporting -name=fio
fio: (g=0): rw=write, bs=4K-4K/4K-4K/4K-4K, ioengine=sync, iodepth=1
...
fio: (g=0): rw=write, bs=4K-4K/4K-4K/4K-4K, ioengine=sync, iodepth=1
fio-2.0.13
Starting 64 processes
Jobs: 64 (f=64): [WWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWW] [100.0% done] [0K/53930K/0K /s] [0 /13.5K/0  iops] [eta 00m:00s]
fio: (groupid=0, jobs=64): err= 0: pid=55137: Mon Nov 12 17:27:48 2018
  write: io=528872KB, bw=52840KB/s, iops=13209 , runt= 10009msec
    clat (usec): min=38 , max=22072 , avg=4837.10, stdev=1451.12
     lat (usec): min=38 , max=22072 , avg=4837.52, stdev=1451.14
    clat percentiles (usec):
     |  1.00th=[   62],  5.00th=[   73], 10.00th=[ 4768], 20.00th=[ 4832],
     | 30.00th=[ 4896], 40.00th=[ 4896], 50.00th=[ 5024], 60.00th=[ 5088],
     | 70.00th=[ 5216], 80.00th=[ 5472], 90.00th=[ 5792], 95.00th=[ 6048],
     | 99.00th=[ 6816], 99.50th=[ 7392], 99.90th=[11456], 99.95th=[18048],
     | 99.99th=[20864]
    bw (KB/s)  : min=  667, max= 2674, per=1.56%, avg=825.18, stdev=180.35
    lat (usec) : 50=0.04%, 100=6.87%, 250=0.14%, 500=0.01%, 750=0.01%
    lat (msec) : 2=0.01%, 4=0.09%, 10=92.74%, 20=0.07%, 50=0.05%
  cpu          : usr=0.14%, sys=1.26%, ctx=265775, majf=0, minf=1983
  IO depths    : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     submit    : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
     complete  : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
     issued    : total=r=0/w=132218/d=0, short=r=0/w=0/d=0

Run status group 0 (all jobs):
  WRITE: io=528872KB, aggrb=52839KB/s, minb=52839KB/s, maxb=52839KB/s, mint=10009msec, maxt=10009msec

Disk stats (read/write):
    dm-2: ios=0/130658, merge=0/0, ticks=0/6968, in_queue=6968, util=69.67%, aggrios=0/132282, aggrmerge=0/94, aggrticks=0/7037, aggrin_queue=6990, aggrutil=68.93%
  sda: ios=0/132282, merge=0/94, ticks=0/7037, in_queue=6990, util=68.93%

※numjobsでも、-filename=が指定されていると、ファイルは1個になります。

※directoryがない場合は、カレントディレクトリー

[global]
ioengine=libaio
iodepth=1
size=1g
direct=1
runtime=60
##directory=/tmp
stonewall

[Seq-Read]
bs=1m
rw=read

[Seq-Write]
bs=1m
rw=write

[Rand-Read-512K]
bs=512k
rw=randread

[Rand-Write-512K]
bs=512k
rw=randwrite

[Rand-Read-4K]
bs=4k
rw=randread

[Rand-Write-4K]
bs=4k
rw=randwrite

[Rand-Read-4K-QD32]
iodepth=32
bs=4k
rw=randread

[Rand-Write-4K-QD32]
iodepth=32
bs=4k
rw=randwrite

# fio -f fio_config.txt --output-format=terse > `date +%Y%m%d`
# cat `date +%Y%m%d` |  awk -F ';' '{print $3, "\tbw:"($7+$48)/1000 "MB\tiops:"($8+$49)}'
Seq-Read 	bw:102.67MB	iops:100
Seq-Write 	bw:95.681MB	iops:93
Rand-Read-512K 	bw:46.719MB	iops:91
Rand-Write-512K 	bw:56.554MB	iops:110
Rand-Read-4K 	bw:0.728MB	iops:182
Rand-Write-4K 	bw:1.832MB	iops:458
Rand-Read-4K-QD32 	bw:3.88MB	iops:970
Rand-Write-4K-QD32 	bw:1.785MB	iops:446

ワンライナー

fio -f fio_config.txt --output-format=terse > `date +%Y%m%d` &&  cat `date +%Y%m%d` |  awk -F ';' '{print $3, "\tbw:"($7+$48)/1000 "MB\tiops:"($8+$49)}'

あとはawkなどで上手くやる。
manコマンドで見ると、terseの出力順番が明記されています。

     1	terse_version_3
     2	fio_version
     3	jobname
     4	groupid
     5	error
     6	read_kb
     7	read_bandwidth
     8	read_iops
     9	read_runtime_ms
    10	read_slat_min
    11	read_slat_max
    12	read_slat_mean
    13	read_slat_dev
    14	read_clat_min
    15	read_clat_max
    16	read_clat_mean
    17	read_clat_dev
    18	read_clat_pct01
    19	read_clat_pct02
    20	read_clat_pct03
    21	read_clat_pct04
    22	read_clat_pct05
    23	read_clat_pct06
    24	read_clat_pct07
    25	read_clat_pct08
    26	read_clat_pct09
    27	read_clat_pct10
    28	read_clat_pct11
    29	read_clat_pct12
    30	read_clat_pct13
    31	read_clat_pct14
    32	read_clat_pct15
    33	read_clat_pct16
    34	read_clat_pct17
    35	read_clat_pct18
    36	read_clat_pct19
    37	read_clat_pct20
    38	read_tlat_min
    39	read_lat_max
    40	read_lat_mean
    41	read_lat_dev
    42	read_bw_min
    43	read_bw_max
    44	read_bw_agg_pct
    45	read_bw_mean
    46	read_bw_dev
    47	write_kb
    48	write_bandwidth
    49	write_iops
    50	write_runtime_ms
    51	write_slat_min
    52	write_slat_max
    53	write_slat_mean
    54	write_slat_dev
    55	write_clat_min
    56	write_clat_max
    57	write_clat_mean
    58	write_clat_dev
    59	write_clat_pct01
    60	write_clat_pct02
    61	write_clat_pct03
    62	write_clat_pct04
    63	write_clat_pct05
    64	write_clat_pct06
    65	write_clat_pct07
    66	write_clat_pct08
    67	write_clat_pct09
    68	write_clat_pct10
    69	write_clat_pct11
    70	write_clat_pct12
    71	write_clat_pct13
    72	write_clat_pct14
    73	write_clat_pct15
    74	write_clat_pct16
    75	write_clat_pct17
    76	write_clat_pct18
    77	write_clat_pct19
    78	write_clat_pct20
    79	write_tlat_min
    80	write_lat_max
    81	write_lat_mean
    82	write_lat_dev
    83	write_bw_min
    84	write_bw_max
    85	write_bw_agg_pct
    86	write_bw_mean
    87	write_bw_dev
    88	cpu_user
    89	cpu_sys
    90	cpu_csw
    91	cpu_mjf
    92	cpu_minf
    93	iodepth_1
    94	iodepth_2
    95	iodepth_4
    96	iodepth_8
    97	iodepth_16
    98	iodepth_32
    99	iodepth_64
   100	lat_2us
   101	lat_4us
   102	lat_10us
   103	lat_20us
   104	lat_50us
   105	lat_100us
   106	lat_250us
   107	lat_500us
   108	lat_750us
   109	lat_1000us
   110	lat_2ms
   111	lat_4ms
   112	lat_10ms
   113	lat_20ms
   114	lat_50ms
   115	lat_100ms
   116	lat_250ms
   117	lat_500ms
   118	lat_750ms
   119	lat_1000ms
   120	lat_2000ms
   121	lat_over_2000ms
   122	disk_name
   123	disk_read_iops
   124	disk_write_iops
   125	disk_read_merges
   126	disk_write_merges
   127	disk_read_ticks
   128	write_ticks
   129	disk_queue_time
   130	disk_util

  fio -f fio_config.txt --output-format=json > `date +%Y%m%d`
  bash cal-json.sh
            "Seq-Read" bw:198MB iops:  193 latency:ms"10":98.925781
           "Seq-Write" bw:163MB iops:  159 latency:ms"10":99.707031
      "Rand-Read-512K" bw:139MB iops:  272 latency:ms"4":90.478516
     "Rand-Write-512K" bw:108MB iops:  211 latency:ms"10":82.8125
        "Rand-Read-4K" bw:  6MB iops: 1562 latency:us"750":97.882079
       "Rand-Write-4K" bw:  4MB iops: 1044 latency:us"1000":87.619245
   "Rand-Read-4K-QD32" bw:120MB iops:30159 latency:ms"2":55.381775
  "Rand-Write-4K-QD32" bw: 96MB iops:24140 latency:ms"2":87.286377

#!/bin/sh
LOG=$1
if [ -z $LOG ];then
  LOG=`date +%Y%m%d`
fi
WORK=/tmp/work.$$
COUNT=`cat $LOG | jq '.jobs' | grep jobname| wc -l`

for (( i=0 ; i<${COUNT} ; i++ ))
do
#  T=""
  NAME=`cat $LOG | jq ".jobs[$i].jobname"`
  BW1=`cat $LOG | jq ".jobs[$i].read.bw"`
  BW2=`cat $LOG | jq ".jobs[$i].write.bw"`
  BW=`echo "scale=0; ($BW1 + $BW2) /1000" | bc`"MB"
  IOPS1=`cat $LOG | jq ".jobs[$i].read.iops"`
  IOPS2=`cat $LOG | jq ".jobs[$i].write.iops"`
  IOPS=`echo "scale=0; $IOPS1 + $IOPS2"| bc | sed 's/\..*//g'`

  NS=`cat $LOG | jq ".jobs[$i].latency_ns" | sed 's/,$//g' | awk 'BEGIN{n=0;m=0} /^ / {if(m<$2){ m=$2 ;n=$1 }} END{print "ns "n" "m}'`
  US=`cat $LOG | jq ".jobs[$i].latency_us" | sed 's/,$//g' | awk 'BEGIN{n=0;m=0} /^ / {if(m<$2){ m=$2 ;n=$1 }} END{print "us "n" "m}'`
  MS=`cat $LOG| jq ".jobs[$i].latency_ms" | sed 's/,$//g' | awk 'BEGIN{n=0;m=0} /^ / {if(m<$2){ m=$2 ;n=$1 }} END{print "ms "n" "m}'`
  echo $NS > $WORK
  echo $US >> $WORK
  echo $MS >> $WORK
  LATENCY=`cat $WORK | awk 'BEGIN{n=0;m=0;name} {if(m<$3){ m=$3 ;n=$2; name=$1 }} END{print name n m}'`

  printf "%20s bw:%5s iops:%5s latency:%5s\n" $NAME $BW $IOPS $LATENCY
done

rm -rf $WORK
exit;