What job did you run? When reporting a potential issue, always include that. Hard to help or advise otherwise. > On Mar 22, 2016, at 5:12 PM, flash yan <flashyan83@xxxxxxxxx> wrote: > > This issue happened after about 20 minutes. The iscsi device is very > small, only 128MB. > As you said, I have enabled verify= options. > I will try big iscsi device and no verify. > > Thanks > > Liang Yan > > 2016-03-23 0:30 GMT+08:00 Jens Axboe <axboe@xxxxxxxxx>: >>> On 03/22/2016 08:06 AM, flash yan wrote: >>> >>> Hi all, >>> >>> I have run fio-2.7 to test iscsi device, one unusual issue happened. >>> If I set the io_size to 4096, queue_depth to 16 ,rw to randwrite and >>> run_time to 3000, >>> the fio would invoke oom_killer and the Linux OS would kill the fio >>> process. >>> The machine have about 11 GB memory and I have tried the machine with >>> 23GB, the issue also happened. >>> I think fio have problem when dealing with 4KB io_size then used too >>> many memory. >> >> >> When did this happen - shortly after the job is started, or long after? How >> big is the iscsi device? Did you have verify= options enabled? >> >> -- >> Jens Axboe >> -- To unsubscribe from this list: send the line "unsubscribe fio" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
