fio: (g=0): rw=randrw, bs=4K-256K/4K-256K, ioengine=sync, iodepth=1 ... fio: (g=0): rw=randrw, bs=4K-256K/4K-256K, ioengine=sync, iodepth=1 Starting 3 threads Threads: 3 Threads: 3 Threads: 3: [mmm] [8.3% done] [ 7244/ 4448 kb/s] [eta 00m:33s] Threads: 3: [mmm] [10.8% done] [ 8336/ 4760 kb/s] [eta 00m:33s] Threads: 3: [mmm] [13.9% done] [ 6436/ 6728 kb/s] [eta 00m:31s] Threads: 3: [mmm] [17.1% done] [ 12264/ 0 kb/s] [eta 00m:29s] Threads: 3: [mmm] [19.4% done] [ 6824/ 4836 kb/s] [eta 00m:29s] Threads: 3: [mmm] [21.6% done] [ 6748/ 4276 kb/s] [eta 00m:29s] Threads: 3: [mmm] [24.3% done] [ 8988/ 2004 kb/s] [eta 00m:28s] Threads: 3: [mmm] [26.3% done] [ 6376/ 2136 kb/s] [eta 00m:28s] Threads: 3: [mmm] [28.9% done] [ 6048/ 5204 kb/s] [eta 00m:27s] Threads: 3: [mmm] [30.8% done] [ 4456/ 5152 kb/s] [eta 00m:27s] Threads: 3: [mmm] [32.5% done] [ 5224/ 6224 kb/s] [eta 00m:27s] Threads: 3: [mmm] [35.0% done] [ 4404/ 5708 kb/s] [eta 00m:26s] Threads: 3: [mmm] [37.5% done] [ 4104/ 5952 kb/s] [eta 00m:25s] Threads: 3: [mmm] [40.0% done] [ 7760/ 2568 kb/s] [eta 00m:24s] Threads: 3: [mmm] [41.5% done] [ 7284/ 1580 kb/s] [eta 00m:24s] Threads: 3: [mmm] [42.9% done] [ 6576/ 2700 kb/s] [eta 00m:24s] Threads: 3: [mmm] [44.2% done] [ 3652/ 3860 kb/s] [eta 00m:24s] Threads: 3: [mmm] [45.5% done] [ 3884/ 4680 kb/s] [eta 00m:24s] Threads: 3: [mmm] [47.7% done] [ 5064/ 3612 kb/s] [eta 00m:23s] Threads: 3: [mmm] [50.0% done] [ 3516/ 4724 kb/s] [eta 00m:22s] Threads: 3: [mmm] [52.3% done] [ 4468/ 2668 kb/s] [eta 00m:21s] Threads: 3: [mmm] [53.3% done] [ 940/ 7020 kb/s] [eta 00m:21s] Threads: 3: [mmm] [55.6% done] [ 3712/ 2892 kb/s] [eta 00m:20s] Threads: 3: [mmm] [57.8% done] [ 5984/ 1472 kb/s] [eta 00m:19s] Threads: 3: [mmm] [58.7% done] [ 3388/ 3252 kb/s] [eta 00m:19s] Threads: 3: [mmm] [59.6% done] [ 4020/ 2588 kb/s] [eta 00m:19s] Threads: 3: [mmm] [59.2% done] [ 4032/ 2564 kb/s] [eta 00m:20s] Threads: 3: [mmm] [62.5% done] [ 5324/ 1352 kb/s] [eta 00m:18s] Threads: 3: [Vmm] [63.3% done] [ 6488/ 1828 kb/s] [eta 00m:18s] Threads: 3: [Vmm] [62.7% done] [ 9824/ 0 kb/s] [eta 00m:19s] Threads: 3: [VVm] [63.0% done] [ 12288/ 1716 kb/s] [eta 00m:20s] Threads: 3: [VVm] [63.6% done] [ 18728/ 0 kb/s] [eta 00m:20s] Threads: 3: [VVm] [63.2% done] [ 16760/ 76 kb/s] [eta 00m:21s] Threads: 2: [_Vm] [63.8% done] [ 16976/ 8 kb/s] [eta 00m:21s] Threads: 1: [__m] [66.7% done] [ 11704/ 328 kb/s] [eta 00m:19s] Threads: 1: [__V] [76.5% done] [ 13664/ 1680 kb/s] [eta 00m:12s] Threads: 1: [__V] [88.9% done] [ 17552/ 0 kb/s] [eta 00m:05s] fio: (groupid=0): err= 0: pid=7931 read : io=100MiB, bw=2,867KiB/s, runt= 36569msec clat (msec): min= 0, max= 184, avg=14.08, stdev=20.04 bw (KiB/s) : min= 15, max=10646, per=44.70%, avg=3451.84, stdev=2733.87 write: io=42,440KiB, bw=1,388KiB/s, runt= 31297msec clat (msec): min= 0, max= 126, avg=14.93, stdev=16.27 bw (KiB/s) : min= 0, max= 5160, per=61.01%, avg=2024.31, stdev=1646.82 cpu : usr=2.66%, sys=0.23%, ctx=2410 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=28.8%, 4=7.2%, 10=13.9%, 20=17.6%, 50=29.7%, 100=1.0% lat (msec): 250=1.6%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0% fio: (groupid=0): err= 0: pid=7932 read : io=100MiB, bw=2,801KiB/s, runt= 37431msec clat (msec): min= 0, max= 199, avg=14.82, stdev=21.74 bw (KiB/s) : min= 21, max=17591, per=43.93%, avg=3392.06, stdev=3199.04 write: io=39,056KiB, bw=1,201KiB/s, runt= 33277msec clat (msec): min= 0, max= 114, avg=17.93, stdev=15.21 bw (KiB/s) : min= 0, max= 4764, per=63.74%, avg=2114.78, stdev=1712.27 cpu : usr=2.84%, sys=0.15%, ctx=2254 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=22.4%, 4=6.7%, 10=17.4%, 20=20.8%, 50=29.3%, 100=1.5% lat (msec): 250=1.9%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0% fio: (groupid=0): err= 0: pid=7933 read : io=100MiB, bw=2,574KiB/s, runt= 40735msec clat (msec): min= 0, max= 240, avg=16.11, stdev=28.16 bw (KiB/s) : min= 10, max=19529, per=36.83%, avg=2844.02, stdev=4208.08 write: io=42,192KiB, bw=1,132KiB/s, runt= 38164msec clat (msec): min= 0, max= 239, avg=17.54, stdev=25.50 bw (KiB/s) : min= 0, max= 6671, per=51.36%, avg=1704.13, stdev=1704.81 cpu : usr=2.45%, sys=0.14%, ctx=2344 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% lat (msec): 2=29.3%, 4=5.5%, 10=14.0%, 20=18.1%, 50=29.4%, 100=1.2% lat (msec): 250=2.4%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0% Run status group 0 (all jobs): READ: io=300MiB, aggrb=7,722KiB/s, minb=2,574KiB/s, maxb=2,867KiB/s, mint=36569msec, maxt=40735msec WRITE: io=121MiB, aggrb=3,318KiB/s, minb=1,132KiB/s, maxb=1,388KiB/s, mint=36569msec, maxt=40735msec Disk stats (read/write): sda: ios=5496/2309, merge=1034/398, ticks=96924/43788, in_queue=140712, util=98.91% 3.07user 0.28system 0:41.10elapsed 8%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+1092minor)pagefaults 0swaps