Yes, I'm saying I don't see this happening. This is my quickie test case:
3;fio-2.1.11-19-g0297;null;0;0;21019592;7006530;1751632;3000;0;0;0.000000;0.000000;0;31;0.028879;0.181874;1.000000%=0;5.000000%=0;10.000000%=0;20.000000%=0;30.000000%=0;40.000000%=0;50.000000%=0;60.000000%=0;70.000000%=0;80.000000%=0;90.000000%=0;95.000000%=0;99.000000%=1;99.500000%=1;99.900000%=1;99.950000%=1;99.990000%=1;0%=0;0%=0;0%=0;0;32;0.055929;0.249507;5932824;7322384;99.011636%;6937280.000000;569503.420436;21014252;7004750;1751187;3000;0;0;0.000000;0.000000;0;48;0.029822;0.186289;1.000000%=0;5.000000%=0;10.000000%=0;20.000000%=0;30.000000%=0;40.000000%=0;50.000000%=0;60.000000%=0;70.000000%=0;80.000000%=0;90.000000%=0;95.000000%=0;99.000000%=1;99.500000%=1;99.900000%=1;99.950000%=1;99.990000%=1;0%=0;0%=0;0%=0;0;48;0.074062;0.286370;5932824;7324072;98.994494%;6934316.800000;568074.804612;99.666667%;0.000000%;4;0;3;100.0%;0.0%;0.0%;0.0%;0.0%;0.0%;0.0%;100.00%;0.01%;0.01%;0.01%;0.01%;0.00%;0.00%;0.00%;0.00%;0.00%;0.00%;0.00%;0.00%;0.00%;0.00%;0.00%;0.00%;0.00%;0.00%;0.00%;0.00%;
0.00%
or when run with normal output:
null: (groupid=0, jobs=1): err= 0: pid=26423: Fri Aug 22 17:33:46 2014
read : io=20499MB, bw=6833.2MB/s, iops=1749.3K, runt= 3000msec
clat (usec): min=0, max=82, avg= 0.03, stdev= 0.19
lat (usec): min=0, max=83, avg= 0.06, stdev= 0.26
clat percentiles (usec):
| 1.00th=[ 0], 5.00th=[ 0], 10.00th=[ 0], 20.00th=[
0],
| 30.00th=[ 0], 40.00th=[ 0], 50.00th=[ 0], 60.00th=[
0],
| 70.00th=[ 0], 80.00th=[ 0], 90.00th=[ 0], 95.00th=[
0],
| 99.00th=[ 1], 99.50th=[ 1], 99.90th=[ 1], 99.95th=[
1],
| 99.99th=[ 1]
bw (MB /s): min= 5617, max= 7119, per=98.96%, avg=6762.01,
stdev=641.65
write: io=20495MB, bw=6831.6MB/s, iops=1748.9K, runt= 3000msec
clat (usec): min=0, max=144, avg= 0.03, stdev= 0.20
lat (usec): min=0, max=144, avg= 0.07, stdev= 0.30
clat percentiles (usec):
| 1.00th=[ 0], 5.00th=[ 0], 10.00th=[ 0], 20.00th=[
0],
| 30.00th=[ 0], 40.00th=[ 0], 50.00th=[ 0], 60.00th=[
0],
| 70.00th=[ 0], 80.00th=[ 0], 90.00th=[ 0], 95.00th=[
0],
| 99.00th=[ 1], 99.50th=[ 1], 99.90th=[ 1], 99.95th=[
1],
| 99.99th=[ 1]
bw (MB /s): min= 5617, max= 7118, per=98.94%, avg=6759.24,
stdev=640.28
lat (usec) : 2=100.00%, 4=0.01%, 10=0.01%, 20=0.01%, 50=0.01%
lat (usec) : 100=0.01%, 250=0.01%
cpu : usr=100.00%, sys=0.00%, ctx=7, majf=0, minf=3
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=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%,
>=64=0.0%
complete : 0=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%,
>=64=0.0%
issued : total=r=5247840/w=5246653/d=0, short=r=0/w=0/d=0
latency : target=0, window=0, percentile=100.00%, depth=1
Run status group 0 (all jobs):
READ: io=20499MB, aggrb=6833.2MB/s, minb=6833.2MB/s,
maxb=6833.2MB/s, mint=3000msec, maxt=3000msec
WRITE: io=20495MB, aggrb=6831.6MB/s, minb=6831.6MB/s,
maxb=6831.6MB/s, mint=3000msec, maxt=3000ms
hmm.
I'll try with the latest fio from the git repo. Perhaps this has been
fixed since the version I'm using (2.1.10)?
Thanks,
Steve.
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