fio: mixed read/write workload with verify. May not work as expected, unless you pre-populated the file stresser: (g=0): rw=randrw, bs=16K-16K/16K-16K, ioengine=mmap, iodepth=4 fio: mixed read/write workload with verify. May not work as expected, unless you pre-populated the file fio: mixed read/write workload with verify. May not work as expected, unless you pre-populated the file ... fio: mixed read/write workload with verify. May not work as expected, unless you pre-populated the file stresser: (g=0): rw=randrw, bs=16K-16K/16K-16K, ioengine=mmap, iodepth=4 Starting 4 processes Bad verify header 55ef4567 Bad verify header 55ef4567 Bad verify header 55ef4567 Bad verify header 55ef4567 stresser: (groupid=0, jobs=1): err=84 (file:io_u.c:986, func=io_u_sync_complete, error=Invalid or incomplete multibyte or wide character): pid=6267 read : io=48KiB, bw=375KiB/s, iops=23, runt= 128msec clat (msec): min=3, max=78, avg=32.97, stdev=40.18 write: io=16KiB, bw=125KiB/s, iops=7, runt= 128msec clat (usec): min=12,699, max=12,699, avg=12699.00, stdev= 0.00 bw (KiB/s) : min= 0, max= 0, per=0.00%, avg= 0.00, stdev= 0.00 cpu : usr=0.00%, sys=0.00%, ctx=20, majf=0, minf=72 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=20.0%, 4=80.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued r/w: total=3/1, short=0/0 lat (msec): 4=25.00%, 20=50.00%, 100=25.00% stresser: (groupid=0, jobs=1): err=84 (file:io_u.c:986, func=io_u_sync_complete, error=Invalid or incomplete multibyte or wide character): pid=6268 read : io=32KiB, bw=359KiB/s, iops=22, runt= 89msec clat (usec): min=3,089, max=3,262, avg=3175.50, stdev=122.33 write: io=48KiB, bw=539KiB/s, iops=33, runt= 89msec clat (msec): min=12, max=51, avg=27.27, stdev=21.20 bw (KiB/s) : min= 0, max= 0, per=0.00%, avg= 0.00, stdev= 0.00 cpu : usr=0.00%, sys=0.00%, ctx=22, majf=0, minf=76 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=16.7%, 4=83.3%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued r/w: total=2/3, short=0/0 lat (msec): 4=40.00%, 20=40.00%, 100=20.00% stresser: (groupid=0, jobs=1): err=84 (file:io_u.c:986, func=io_u_sync_complete, error=Invalid or incomplete multibyte or wide character): pid=6269 read : io=48KiB, bw=375KiB/s, iops=23, runt= 128msec clat (msec): min=3, max=78, avg=31.42, stdev=41.04 write: io=16KiB, bw=125KiB/s, iops=7, runt= 128msec clat (usec): min=17,356, max=17,356, avg=17356.00, stdev= 0.00 bw (KiB/s) : min= 0, max= 0, per=0.00%, avg= 0.00, stdev= 0.00 cpu : usr=0.00%, sys=0.00%, ctx=19, majf=0, minf=72 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=20.0%, 4=80.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued r/w: total=3/1, short=0/0 lat (msec): 4=25.00%, 20=50.00%, 100=25.00% stresser: (groupid=0, jobs=1): err=84 (file:io_u.c:986, func=io_u_sync_complete, error=Invalid or incomplete multibyte or wide character): pid=6270 read : io=64KiB, bw=581KiB/s, iops=36, runt= 110msec clat (msec): min=3, max=65, avg=24.48, stdev=27.65 cpu : usr=0.00%, sys=0.92%, ctx=19, majf=0, minf=72 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=20.0%, 4=80.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued r/w: total=4/0, short=0/0 lat (msec): 4=25.00%, 20=50.00%, 100=25.00% Run status group 0 (all jobs): READ: io=192KiB, aggrb=1,500KiB/s, minb=360KiB/s, maxb=585KiB/s, mint=89msec, maxt=128msec WRITE: io=80KiB, aggrb=625KiB/s, minb=125KiB/s, maxb=540KiB/s, mint=89msec, maxt=128msec Disk stats (read/write): sda: ios=37/6, merge=0/10, ticks=275/1, in_queue=276, util=41.57% Command exited with non-zero status 4 0.00user 0.01system 0:00.34elapsed 4%CPU (0avgtext+0avgdata 0maxresident)k 328inputs+2280outputs (26major+2053minor)pagefaults 0swaps