Журавлев Денисvvt1, read : io=2453.1MB, bw=25113KB/s, iops=6278
хорошие числа для рандомов
я предлагал проверить не рандомы, и не на файлах
fio -name iops -rw=read -bs=4k -iodepth=100 -runtime=100 -filename=/opt/informix/lnk/chunk-maindbs_13 -ioengine libaio -direct=1 buffered=0
Я вначале так и думал сделать, но подумал, что опять не так понял :-)
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[root@ifx12-24 ~]# fio -name iops -rw=randread -bs=4096 -size=10G -iodepth=100 -runtime=100 -filename /opt/informix/lnk/chunk-maindbs_13 -ioengine libaio -direct=1
iops: (g=0): rw=randread, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=100
2.0.8
Starting 1 process
Jobs: 1 (f=1): [r] [100.0% done] [26416K/0K /s] [6604 /0 iops] [eta 00m:00s]
iops: (groupid=0, jobs=1): err= 0: pid=6858
read : io=2580.9MB, bw=26414KB/s, iops=6603 , runt=100051msec
slat (usec): min=3 , max=315 , avg=12.68, stdev= 8.46
clat (usec): min=40 , max=259085 , avg=15128.54, stdev=15133.70
lat (usec): min=60 , max=259093 , avg=15141.43, stdev=15133.69
clat percentiles (usec):
| 1.00th=[ 1880], 5.00th=[ 2640], 10.00th=[ 3440], 20.00th=[ 5024],
| 30.00th=[ 6560], 40.00th=[ 8096], 50.00th=[ 9664], 60.00th=[12736],
| 70.00th=[16512], 80.00th=[22400], 90.00th=[33024], 95.00th=[44288],
| 99.00th=[75264], 99.50th=[88576], 99.90th=[122368], 99.95th=[136192],
| 99.99th=[173056]
bw (KB/s) : min=24061, max=27232, per=100.00%, avg=26418.67, stdev=337.48
lat (usec) : 50=0.01%, 100=0.01%, 250=0.01%, 500=0.01%, 1000=0.01%
lat (msec) : 2=1.35%, 4=12.17%, 10=38.20%, 20=25.18%, 50=19.32%
lat (msec) : 100=3.47%, 250=0.28%, 500=0.01%
cpu : usr=2.45%, sys=10.20%, ctx=565820, majf=0, minf=123
IO depths : 1=0.1%, 2=0.1%, 4=0.1%, 8=0.1%, 16=0.1%, 32=0.1%, >=64=100.0%
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=0.1%
issued : total=r=660697/w=0/d=0, short=r=0/w=0/d=0
Run status group 0 (all jobs):
READ: io=2580.9MB, aggrb=26414KB/s, minb=26414KB/s, maxb=26414KB/s, mint=100051msec, maxt=100051msec
Disk stats (read/write):
md2: ios=0/5, merge=0/0, ticks=0/0, in_queue=0, util=0.00%, aggrios=0/27, aggrmerge=0/0, aggrticks=0/245, aggrin_queue=245, aggrutil=0.26%
sda: ios=0/27, merge=0/0, ticks=0/265, in_queue=265, util=0.26%
sdb: ios=0/27, merge=0/0, ticks=0/226, in_queue=226, util=0.23%
и еще раз:
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[root@ifx12-24 ~]# fio -name iops -rw=randread -bs=4096 -iodepth=100 -runtime=100 -filename=/opt/informix/lnk/chunk-maindbs_13 -ioengine libaio -direct=1
iops: (g=0): rw=randread, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=100
2.0.8
Starting 1 process
Jobs: 1 (f=1): [r] [100.0% done] [24872K/0K /s] [6218 /0 iops] [eta 00m:00s]
iops: (groupid=0, jobs=1): err= 0: pid=6867
read : io=2416.5MB, bw=24731KB/s, iops=6182 , runt=100038msec
slat (usec): min=3 , max=151 , avg=13.83, stdev= 9.39
clat (usec): min=54 , max=289566 , avg=16158.16, stdev=16522.52
lat (usec): min=62 , max=289592 , avg=16172.21, stdev=16522.51
clat percentiles (msec):
| 1.00th=[ 3], 5.00th=[ 3], 10.00th=[ 4], 20.00th=[ 6],
| 30.00th=[ 7], 40.00th=[ 9], 50.00th=[ 11], 60.00th=[ 14],
| 70.00th=[ 18], 80.00th=[ 24], 90.00th=[ 36], 95.00th=[ 49],
| 99.00th=[ 83], 99.50th=[ 98], 99.90th=[ 135], 99.95th=[ 151],
| 99.99th=[ 194]
bw (KB/s) : min=23108, max=25456, per=100.00%, avg=24734.78, stdev=319.13
lat (usec) : 100=0.01%, 250=0.01%, 750=0.01%, 1000=0.01%
lat (msec) : 2=0.64%, 4=11.46%, 10=37.39%, 20=25.56%, 50=20.32%
lat (msec) : 100=4.19%, 250=0.45%, 500=0.01%
cpu : usr=2.37%, sys=10.46%, ctx=528145, majf=0, minf=123
IO depths : 1=0.1%, 2=0.1%, 4=0.1%, 8=0.1%, 16=0.1%, 32=0.1%, >=64=100.0%
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=0.1%
issued : total=r=618508/w=0/d=0, short=r=0/w=0/d=0
Run status group 0 (all jobs):
READ: io=2416.5MB, aggrb=24730KB/s, minb=24730KB/s, maxb=24730KB/s, mint=100038msec, maxt=100038msec
Disk stats (read/write):
md2: ios=0/8, merge=0/0, ticks=0/0, in_queue=0, util=0.00%, aggrios=0/36, aggrmerge=0/0, aggrticks=0/320, aggrin_queue=320, aggrutil=0.37%
sda: ios=0/36, merge=0/0, ticks=0/370, in_queue=370, util=0.37%
sdb: ios=0/36, merge=0/0, ticks=0/271, in_queue=271, util=0.27%
И, навсякий случай, с iodepth=20:
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[root@ifx12-24 ~]# fio -name iops -rw=randread -bs=4k -iodepth=20 -runtime=100 -filename=/opt/informix/lnk/chunk-maindbs_13 -ioengine libaio -direct=1
Jobs: 1 (f=1): [r] [100.0% done] [10428K/0K /s] [2607 /0 iops] [eta 00m:00s]
iops: (groupid=0, jobs=1): err= 0: pid=6871
read : io=1014.0MB, bw=10382KB/s, iops=2595 , runt=100016msec
slat (usec): min=4 , max=159 , avg=22.63, stdev=10.55
clat (usec): min=575 , max=81438 , avg=7679.98, stdev=4738.94
lat (usec): min=584 , max=81475 , avg=7702.87, stdev=4738.96
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