On 12/04/2017 10:12 AM, Gavriliuk, Anton (HPS Ukraine) wrote: > I have run next command several times, > > perf record /usr/local/bin/fio --filename=/dev/dax0.0 --rw=randrw --refill_buffers --norandommap --randrepeat=0 --ioengine=mmap --bssplit=4k/4:8k/7:16k/7:32k/15:64k/65:128k/1:256k/1 --rwmixread=5 --iodepth=1 --numjobs=16 --runtime=1800 --group_reporting --name=4-rand-rw-3xx --size=290g --numa_cpu_nodes=0 > > each perf report shows me toppest clock_thread_fn(), It's the cpu clock calibration that fio does. Just ignore it, it's run before any of the actual work starts. Additionally, please stop top posting. Proper net etiquette is replying below the context you are responding to. -- 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
