On Sun, Feb 9, 2014 at 12:57 PM, Jens Axboe <[email protected]> wrote:
> On Sat, Feb 08 2014, Matthew Eaton wrote:
>> On Thu, Feb 6, 2014 at 11:21 AM, Jens Axboe <[email protected]> wrote:
>> > Hi,
>> >
>> > I've been late on this release, originally wanted it out around
>> > Christmas. But various issues here and there prevented that. However, I
>> > now think we are getting pretty close. It'd be great if folks running on
>> > non-linux systems could compile and ensure that everything is in working
>> > order, because otherwise I'm going to assume that it is...
>> >
>> > Similarly, if you know of bugs (particularly regressions from previous
>> > releases), speak up now so we can get them fixed before 2.1.5 is cut.
>> >
>> > I'll wait until Monday to tag the release.
>> >
>> > --
>> > Jens Axboe
>> >
>>
>> Hi Jens,
>>
>> I was messing around with the openfiles flag in one of my job files
>> last week but was unable to get it to work. Fio would keep defaulting
>> to opening all files set by nrfiles, but I'm not sure if I was doing
>> something wrong. This was with fio 2.1.4 on linux. Can you check on
>> this?
>
> It'd be easier if you include your job file / command line!
>
> --
> Jens Axboe
>
Hi Jens,
Here's an example. In fio output I get f=50 instead of f=10 which I
believe is the number of simultaneous opens? Also strange to me is
that write io is 2000 MB instead of 1024 MB.
[job]
bs=1m
rw=write
size=1g
nrfiles=50
openfiles=10
directory=temp
job: (g=0): rw=write, bs=1M-1M/1M-1M/1M-1M, ioengine=sync, iodepth=1
fio-2.1.4
Starting 1 process
job: Laying out IO file(s) (50 file(s) / 1023MB)
Jobs: 1 (f=50): [W] [-.-% done] [0KB/539.0MB/0KB /s] [0/539/0 iops]
[eta 00m:00s]
job: (groupid=0, jobs=1): err= 0: pid=15131: Sun Feb 9 16:18:55 2014
write: io=2000.0MB, bw=697785KB/s, iops=681, runt= 2935msec
clat (usec): min=167, max=145348, avg=1399.89, stdev=6030.76
lat (usec): min=175, max=145359, avg=1413.43, stdev=6031.10
clat percentiles (usec):
| 1.00th=[ 175], 5.00th=[ 207], 10.00th=[ 253], 20.00th=[ 262],
| 30.00th=[ 274], 40.00th=[ 290], 50.00th=[ 302], 60.00th=[ 358],
| 70.00th=[ 516], 80.00th=[ 572], 90.00th=[ 5984], 95.00th=[ 6624],
| 99.00th=[ 7328], 99.50th=[10816], 99.90th=[115200], 99.95th=[140288],
| 99.99th=[144384]
bw (KB /s): min=81160, max=1503620, per=100.00%, avg=778889.75,
stdev=604179.56
lat (usec) : 250=7.50%, 500=61.95%, 750=18.25%
lat (msec) : 10=11.70%, 20=0.20%, 50=0.15%, 100=0.10%, 250=0.15%
cpu : usr=2.97%, sys=25.70%, ctx=504, majf=0, minf=33
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=2000/d=0, short=r=0/w=0/d=0
Run status group 0 (all jobs):
WRITE: io=2000.0MB, aggrb=697785KB/s, minb=697785KB/s,
maxb=697785KB/s, mint=2935msec, maxt=2935msec
Disk stats (read/write):
sdb: ios=0/2740, merge=0/2, ticks=0/360280, in_queue=376924, util=90.05%
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