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] [9.1% done] [ 5810/ 7561 kb/s] [eta 00m:30s] Threads: 3: [mmm] [11.8% done] [ 6480/ 6876 kb/s] [eta 00m:30s] Threads: 3: [mmm] [15.2% done] [ 8124/ 6328 kb/s] [eta 00m:28s] Threads: 3: [mmm] [17.6% done] [ 2831/ 8750 kb/s] [eta 00m:28s] Threads: 3: [mmm] [20.0% done] [ 7688/ 4536 kb/s] [eta 00m:28s] Threads: 3: [mmm] [22.2% done] [ 5731/ 4877 kb/s] [eta 00m:28s] Threads: 3: [mmm] [24.3% done] [ 9338/ 1461 kb/s] [eta 00m:28s] Threads: 3: [mmm] [26.3% done] [ 4745/ 4036 kb/s] [eta 00m:28s] Threads: 3: [mmm] [28.2% done] [ 3142/ 7699 kb/s] [eta 00m:28s] Threads: 3: [mmm] [30.8% done] [ 3828/ 6935 kb/s] [eta 00m:27s] Threads: 3: [mmm] [33.3% done] [ 7427/ 3213 kb/s] [eta 00m:26s] Threads: 3: [mmm] [35.0% done] [ 6663/ 1689 kb/s] [eta 00m:26s] Threads: 3: [mmm] [36.6% done] [ 4576/ 4210 kb/s] [eta 00m:26s] Threads: 3: [mmm] [39.0% done] [ 3780/ 6435 kb/s] [eta 00m:25s] Threads: 3: [mmm] [41.5% done] [ 5131/ 3150 kb/s] [eta 00m:24s] Threads: 3: [mmm] [42.9% done] [ 6707/ 2107 kb/s] [eta 00m:24s] Threads: 3: [mmm] [44.2% done] [ 4340/ 3264 kb/s] [eta 00m:24s] Threads: 3: [mmm] [46.5% done] [ 6407/ 2083 kb/s] [eta 00m:23s] Threads: 3: [mmm] [47.7% done] [ 6652/ 1059 kb/s] [eta 00m:23s] Threads: 3: [mmm] [50.0% done] [ 2863/ 5856 kb/s] [eta 00m:22s] Threads: 3: [mmm] [51.1% done] [ 3048/ 3422 kb/s] [eta 00m:23s] Threads: 3: [mmm] [53.2% done] [ 2563/ 3146 kb/s] [eta 00m:22s] Threads: 3: [mmm] [54.2% done] [ 4588/ 1626 kb/s] [eta 00m:22s] Threads: 3: [mmm] [56.2% done] [ 4005/ 1457 kb/s] [eta 00m:21s] Threads: 3: [mmm] [58.3% done] [ 2654/ 4096 kb/s] [eta 00m:20s] Threads: 3: [mmm] [59.2% done] [ 5383/ 1614 kb/s] [eta 00m:20s] Threads: 3: [mmm] [60.0% done] [ 3446/ 4029 kb/s] [eta 00m:20s] Threads: 3: [mmm] [60.8% done] [ 5435/ 1366 kb/s] [eta 00m:20s] Threads: 3: [mVm] [60.4% done] [ 192/ 6569 kb/s] [eta 00m:21s] Threads: 3: [VVm] [61.1% done] [ 8833/ 3320 kb/s] [eta 00m:21s] Threads: 3: [VVm] [60.7% done] [ 17085/ 31 kb/s] [eta 00m:22s] Threads: 3: [VVm] [61.4% done] [ 17604/ 0 kb/s] [eta 00m:22s] Threads: 3: [VVm] [61.0% done] [ 16163/ 98 kb/s] [eta 00m:23s] Threads: 3: [VVm] [61.7% done] [ 20625/ 23 kb/s] [eta 00m:23s] Threads: 1: [__m] [65.5% done] [ 4509/ 7187 kb/s] [eta 00m:20s] Threads: 1: [__V] [75.0% done] [ 11716/ 1764 kb/s] [eta 00m:13s] Threads: 1: [__V] [87.0% done] [ 18211/ 0 kb/s] [eta 00m:06s] Threads: 1: [__V] [100.0% done] [ 22713/ 0 kb/s] [eta 00m:00s] fio: (groupid=0): err= 0: pid=5119 read : io=100MiB, bw=2,783KiB/s, runt= 37670msec clat (msec): min= 0, max= 178, avg=14.26, stdev=19.19 bw (KiB/s) : min= 2, max=10805, per=41.94%, avg=3166.51, stdev=2720.74 write: io=40,376KiB, bw=1,255KiB/s, runt= 32940msec clat (msec): min= 0, max= 128, avg=14.26, stdev=19.33 bw (KiB/s) : min= 0, max= 6047, per=55.25%, avg=2070.75, stdev=1971.34 cpu : usr=2.56%, sys=0.28%, ctx=2512 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=31.4%, 4=5.9%, 10=12.9%, 20=18.0%, 50=28.9%, 100=1.0% lat (msec): 250=1.7%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0% fio: (groupid=0): err= 0: pid=5120 read : io=100MiB, bw=2,789KiB/s, runt= 37587msec clat (msec): min= 0, max= 179, avg=14.16, stdev=19.78 bw (KiB/s) : min= 25, max=11426, per=45.88%, avg=3464.22, stdev=2985.43 write: io=45,432KiB, bw=1,450KiB/s, runt= 32076msec clat (msec): min= 0, max= 191, avg=14.95, stdev=18.09 bw (KiB/s) : min= 0, max= 5799, per=65.20%, avg=2443.79, stdev=2123.35 cpu : usr=2.83%, sys=0.29%, ctx=2470 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=31.6%, 4=4.8%, 10=13.8%, 20=17.6%, 50=29.3%, 100=1.2% lat (msec): 250=1.5%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0% fio: (groupid=0): err= 0: pid=5121 read : io=100MiB, bw=2,516KiB/s, runt= 41664msec clat (msec): min= 0, max= 240, avg=13.29, stdev=26.08 bw (KiB/s) : min= 22, max=24804, per=47.04%, avg=3551.27, stdev=5869.14 write: io=55,932KiB, bw=1,479KiB/s, runt= 38725msec clat (msec): min= 0, max= 219, avg=16.32, stdev=24.29 bw (KiB/s) : min= 0, max= 8126, per=60.06%, avg=2251.17, stdev=2140.23 cpu : usr=2.61%, sys=0.34%, ctx=2746 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=36.3%, 4=4.6%, 10=11.6%, 20=19.7%, 50=24.3%, 100=1.4% lat (msec): 250=2.0%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0% Run status group 0 (all jobs): READ: io=300MiB, aggrb=7,550KiB/s, minb=2,516KiB/s, maxb=2,789KiB/s, mint=37587msec, maxt=41664msec WRITE: io=138MiB, aggrb=3,748KiB/s, minb=1,255KiB/s, maxb=1,479KiB/s, mint=37587msec, maxt=41664msec Disk stats (read/write): sda: ios=5672/2890, merge=1037/539, ticks=93752/53536, in_queue=147288, util=98.40% 3.12user 0.50system 0:42.10elapsed 8%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+1102minor)pagefaults 0swaps