fio: (g=0): rw=randrw, bs=4K-256K/4K-256K, ioengine=mmap, iodepth=1 ... fio: (g=0): rw=randrw, bs=4K-256K/4K-256K, ioengine=mmap, iodepth=1 Starting 3 threads Threads: 3 Threads: 3 Threads: 3: [mmm] [5.0% done] [ 3452/ 0 kb/s] [eta 00m:57s] Threads: 3: [mmm] [6.7% done] [ 2080/ 1408 kb/s] [eta 00m:56s] Threads: 3: [mmm] [8.3% done] [ 2924/ 716 kb/s] [eta 00m:55s] Threads: 3: [mmm] [10.0% done] [ 2776/ 388 kb/s] [eta 00m:54s] Threads: 3: [mmm] [11.7% done] [ 4043/ 204 kb/s] [eta 00m:53s] Threads: 3: [mmm] [13.3% done] [ 2560/ 740 kb/s] [eta 00m:52s] Threads: 3: [mmm] [15.0% done] [ 2196/ 692 kb/s] [eta 00m:51s] Threads: 3: [mmm] [16.7% done] [ 1556/ 604 kb/s] [eta 00m:50s] Threads: 3: [mmm] [18.3% done] [ 2560/ 848 kb/s] [eta 00m:49s] Threads: 3: [mmm] [20.0% done] [ 1716/ 1196 kb/s] [eta 00m:48s] Threads: 3: [mmm] [21.7% done] [ 4956/ 500 kb/s] [eta 00m:47s] Threads: 3: [mmm] [23.3% done] [ 1356/ 1572 kb/s] [eta 00m:46s] Threads: 3: [mmm] [25.0% done] [ 1764/ 700 kb/s] [eta 00m:45s] Threads: 3: [mmm] [26.7% done] [ 1468/ 1120 kb/s] [eta 00m:44s] Threads: 3: [mmm] [28.3% done] [ 2664/ 516 kb/s] [eta 00m:43s] Threads: 3: [mmm] [30.0% done] [ 4420/ 132 kb/s] [eta 00m:42s] Threads: 3: [mmm] [31.7% done] [ 1920/ 812 kb/s] [eta 00m:41s] Threads: 3: [mmm] [33.3% done] [ 1180/ 1732 kb/s] [eta 00m:40s] Threads: 3: [mmm] [35.0% done] [ 4024/ 956 kb/s] [eta 00m:39s] Threads: 3: [mmm] [36.7% done] [ 2176/ 1204 kb/s] [eta 00m:38s] Threads: 3: [mmm] [38.3% done] [ 2704/ 336 kb/s] [eta 00m:37s] Threads: 3: [mmm] [40.0% done] [ 1824/ 1500 kb/s] [eta 00m:36s] Threads: 3: [mmm] [41.7% done] [ 2456/ 196 kb/s] [eta 00m:35s] Threads: 3: [mmm] [43.3% done] [ 2524/ 424 kb/s] [eta 00m:34s] Threads: 3: [mmm] [45.0% done] [ 968/ 1200 kb/s] [eta 00m:33s] Threads: 3: [mmm] [46.7% done] [ 3472/ 84 kb/s] [eta 00m:32s] Threads: 3: [mmm] [48.3% done] [ 1436/ 500 kb/s] [eta 00m:31s] Threads: 3: [mmm] [50.0% done] [ 1668/ 628 kb/s] [eta 00m:30s] Threads: 3: [mmm] [51.7% done] [ 2220/ 640 kb/s] [eta 00m:29s] Threads: 3: [mmm] [53.3% done] [ 3136/ 492 kb/s] [eta 00m:28s] Threads: 3: [mmm] [55.0% done] [ 3060/ 180 kb/s] [eta 00m:27s] Threads: 3: [mmm] [56.7% done] [ 1585/ 304 kb/s] [eta 00m:26s] Threads: 3: [mmm] [58.3% done] [ 2008/ 456 kb/s] [eta 00m:25s] Threads: 3: [mmm] [60.0% done] [ 3164/ 408 kb/s] [eta 00m:24s] Threads: 3: [mmm] [61.7% done] [ 1336/ 676 kb/s] [eta 00m:23s] Threads: 3: [mmm] [63.3% done] [ 840/ 1480 kb/s] [eta 00m:22s] Threads: 3: [mmm] [65.0% done] [ 3408/ 316 kb/s] [eta 00m:21s] Threads: 3: [mmm] [66.7% done] [ 2620/ 112 kb/s] [eta 00m:20s] Threads: 3: [mmm] [68.3% done] [ 1916/ 0 kb/s] [eta 00m:19s] Threads: 3: [mmm] [71.7% done] [ 1732/ 304 kb/s] [eta 00m:17s] Threads: 3: [mmm] [73.3% done] [ 1112/ 648 kb/s] [eta 00m:16s] Threads: 3: [mmm] [75.0% done] [ 2248/ 1140 kb/s] [eta 00m:15s] Threads: 3: [mmm] [76.7% done] [ 2076/ 964 kb/s] [eta 00m:14s] Threads: 3: [mmm] [78.3% done] [ 3464/ 352 kb/s] [eta 00m:13s] Threads: 3: [mmm] [80.0% done] [ 3092/ 128 kb/s] [eta 00m:12s] Threads: 3: [mmm] [81.7% done] [ 1188/ 24 kb/s] [eta 00m:11s] Threads: 3: [mmm] [83.3% done] [ 3208/ 848 kb/s] [eta 00m:10s] Threads: 3: [mmm] [85.0% done] [ 1596/ 680 kb/s] [eta 00m:09s] Threads: 3: [mmm] [86.7% done] [ 3020/ 176 kb/s] [eta 00m:08s] Threads: 3: [mmm] [88.3% done] [ 2220/ 804 kb/s] [eta 00m:07s] Threads: 3: [mmm] [90.0% done] [ 1496/ 884 kb/s] [eta 00m:06s] Threads: 3: [mmm] [91.7% done] [ 2300/ 164 kb/s] [eta 00m:05s] Threads: 3: [mmm] [93.3% done] [ 1444/ 404 kb/s] [eta 00m:04s] Threads: 3: [mmm] [95.0% done] [ 2460/ 264 kb/s] [eta 00m:03s] Threads: 3: [mmm] [96.7% done] [ 1604/ 880 kb/s] [eta 00m:02s] Threads: 3: [mmm] [98.3% done] [ 516/ 900 kb/s] [eta 00m:01s] fio: (groupid=0): err= 0: pid=31583 read : io=47,124KiB, bw=803KiB/s, runt= 60034msec clat (msec): min= 2, max= 509, avg=82.11, stdev=87.03 bw (KiB/s) : min= 5, max= 3278, per=41.88%, avg=964.58, stdev=768.46 write: io=10,476KiB, bw=178KiB/s, runt= 60034msec clat (msec): min= 11, max= 767, avg=185.87, stdev=166.70 bw (KiB/s) : min= 0, max= 1408, per=49.10%, avg=309.30, stdev=333.00 cpu : usr=0.73%, sys=0.53%, ctx=14542 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=0.0%, 4=1.3%, 10=6.1%, 20=19.0%, 50=17.3%, 100=19.2% lat (msec): 250=27.6%, 500=7.2%, 750=1.5%, 1000=0.2%, >=2000=0.0% fio: (groupid=0): err= 0: pid=31584 read : io=43,144KiB, bw=736KiB/s, runt= 60005msec clat (msec): min= 1, max= 482, avg=77.98, stdev=75.52 bw (KiB/s) : min= 13, max= 4780, per=41.57%, avg=957.38, stdev=815.69 write: io=14,300KiB, bw=244KiB/s, runt= 60004msec clat (msec): min= 13, max= 685, avg=167.05, stdev=124.79 bw (KiB/s) : min= 0, max= 1331, per=60.45%, avg=380.85, stdev=317.74 cpu : usr=0.73%, sys=0.51%, ctx=14601 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=0.2%, 4=0.8%, 10=4.4%, 20=15.7%, 50=17.5%, 100=20.2% lat (msec): 250=33.7%, 500=6.1%, 750=0.8%, 1000=0.0%, >=2000=0.0% fio: (groupid=0): err= 0: pid=31585 read : io=44,768KiB, bw=763KiB/s, runt= 60023msec clat (msec): min= 1, max= 622, avg=77.47, stdev=85.64 bw (KiB/s) : min= 13, max= 3027, per=41.50%, avg=955.83, stdev=816.55 write: io=12,172KiB, bw=207KiB/s, runt= 60023msec clat (msec): min= 14, max= 588, avg=160.97, stdev=115.58 bw (KiB/s) : min= 0, max= 1127, per=50.06%, avg=315.38, stdev=273.62 cpu : usr=0.60%, sys=0.48%, ctx=14449 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=0.3%, 4=1.5%, 10=4.3%, 20=16.7%, 50=18.7%, 100=20.0% lat (msec): 250=29.7%, 500=7.4%, 750=0.8%, 1000=0.0%, >=2000=0.0% Run status group 0 (all jobs): READ: io=132MiB, aggrb=2,303KiB/s, minb=736KiB/s, maxb=803KiB/s, mint=60005msec, maxt=60034msec WRITE: io=36,948KiB, aggrb=630KiB/s, minb=178KiB/s, maxb=244KiB/s, mint=60005msec, maxt=60034msec Disk stats (read/write): sda: ios=43064/690, merge=53/8655, ticks=154668/38484, in_queue=193144, util=99.75% 1.23user 0.94system 1:00.27elapsed 3%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (42996major+1146minor)pagefaults 0swaps