I tried this with both 2.13 (the version that is available with SUSE Enterprise Storage and with a freshly built 2.20-53 that I built 12 hours ago. Neither prints the actual iops value to the iops log. Any clue as to where the problem lies?
Raw data follows.
linux:~/bench # ./fio --filename=/root/test.fil --size=1G --runtime=30 --rw=randwrite --write_iops_log=4kw3 --name=test
test: (g=0): rw=randwrite, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=1
fio-2.20-53-g85c7
Starting 1 process
Jobs: 1 (f=1): [w(1)][100.0%][r=0KiB/s,w=30.5MiB/s][r=0,w=7802 IOPS][eta 00m:00s]
test: (groupid=0, jobs=1): err= 0: pid=4362: Fri Jun 9 19:54:13 2017
write: IOPS=8563, BW=33.5MiB/s (35.1MB/s)(1004MiB/30001msec)
clat (usec): min=1, max=22247, avg=107.21, stdev=832.08
lat (usec): min=1, max=22247, avg=108.20, stdev=832.49
clat percentiles (usec):
| 1.00th=[ 1], 5.00th=[ 1], 10.00th=[ 2], 20.00th=[ 2],
| 30.00th=[ 2], 40.00th=[ 3], 50.00th=[ 3], 60.00th=[ 3],
| 70.00th=[ 4], 80.00th=[ 6], 90.00th=[ 113], 95.00th=[ 161],
| 99.00th=[ 2928], 99.50th=[ 7648], 99.90th=[11200], 99.95th=[11584],
| 99.99th=[12608]
bw ( KiB/s): min=23312, max=167384, per=0.10%, avg=34279.28, stdev=18650.09
lat (usec) : 2=5.54%, 4=60.46%, 10=18.78%, 20=2.24%, 50=1.13%
lat (usec) : 100=0.38%, 250=8.53%, 500=1.33%, 750=0.22%, 1000=0.08%
lat (msec) : 2=0.24%, 4=0.11%, 10=0.77%, 20=0.22%, 50=0.01%
cpu : usr=2.38%, sys=23.12%, ctx=5728, majf=0, minf=1126
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 rwt: total=0,256909,0, short=0,0,0, dropped=0,0,0
latency : target=0, window=0, percentile=100.00%, depth=1
Run status group 0 (all jobs):
WRITE: bw=33.5MiB/s (35.1MB/s), 33.5MiB/s-33.5MiB/s (35.1MB/s-35.1MB/s), io=1004MiB (1052MB), run=30001-30001msec
Disk stats (read/write):
sda: ios=0/152917, merge=0/15, ticks=0/4226900, in_queue=4228108, util=99.24%
linux:~/bench # tail 4kw3_iops.1.log
29986, 1, 1, 4096
29986, 1, 1, 4096
29986, 1, 1, 4096
29986, 1, 1, 4096
29986, 1, 1, 4096
29998, 1, 1, 4096
29999, 1, 1, 4096
29999, 1, 1, 4096
29999, 1, 1, 4096
30000, 1, 1, 4096
linux:~/bench # head 4kw3_iops.1.log
129, 1, 1, 4096
129, 1, 1, 4096
129, 1, 1, 4096
129, 1, 1, 4096
129, 1, 1, 4096
129, 1, 1, 4096
129, 1, 1, 4096
129, 1, 1, 4096
129, 1, 1, 4096
129, 1, 1, 4096
David Byte
Sr. Technology Strategist
Alliances and SUSE Embedded
dbyte@xxxxxxxx
918.528.4422
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