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
