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] [ 3292/ 468 kb/s] [eta 00m:57s] Threads: 3: [mmm] [6.7% done] [ 3178/ 248 kb/s] [eta 00m:56s] Threads: 3: [mmm] [8.3% done] [ 2512/ 685 kb/s] [eta 00m:55s] Threads: 3: [mmm] [10.0% done] [ 3166/ 634 kb/s] [eta 00m:54s] Threads: 3: [mmm] [11.7% done] [ 1768/ 1402 kb/s] [eta 00m:53s] Threads: 3: [mmm] [13.3% done] [ 5765/ 370 kb/s] [eta 00m:52s] Threads: 3: [mmm] [15.0% done] [ 2595/ 0 kb/s] [eta 00m:51s] Threads: 3: [mmm] [16.7% done] [ 2812/ 1882 kb/s] [eta 00m:50s] Threads: 3: [mmm] [18.3% done] [ 1409/ 1169 kb/s] [eta 00m:49s] Threads: 3: [mmm] [20.0% done] [ 2240/ 1327 kb/s] [eta 00m:48s] Threads: 3: [mmm] [21.7% done] [ 2343/ 0 kb/s] [eta 00m:47s] Threads: 3: [mmm] [23.3% done] [ 2311/ 712 kb/s] [eta 00m:46s] Threads: 3: [mmm] [25.0% done] [ 834/ 1520 kb/s] [eta 00m:45s] Threads: 3: [mmm] [26.7% done] [ 941/ 1536 kb/s] [eta 00m:44s] Threads: 3: [mmm] [28.3% done] [ 3217/ 1004 kb/s] [eta 00m:43s] Threads: 3: [mmm] [30.0% done] [ 3926/ 551 kb/s] [eta 00m:42s] Threads: 3: [mmm] [31.7% done] [ 2304/ 102 kb/s] [eta 00m:41s] Threads: 3: [mmm] [33.3% done] [ 3119/ 988 kb/s] [eta 00m:40s] Threads: 3: [mmm] [35.0% done] [ 2370/ 346 kb/s] [eta 00m:39s] Threads: 3: [mmm] [36.7% done] [ 1933/ 378 kb/s] [eta 00m:38s] Threads: 3: [mmm] [38.3% done] [ 2942/ 224 kb/s] [eta 00m:37s] Threads: 3: [mmm] [40.0% done] [ 3016/ 779 kb/s] [eta 00m:36s] Threads: 3: [mmm] [41.7% done] [ 2595/ 248 kb/s] [eta 00m:35s] Threads: 3: [mmm] [45.0% done] [ 2871/ 0 kb/s] [eta 00m:33s] Threads: 3: [mmm] [46.7% done] [ 1622/ 1303 kb/s] [eta 00m:32s] Threads: 3: [mmm] [48.3% done] [ 1382/ 1110 kb/s] [eta 00m:31s] Threads: 3: [mmm] [50.0% done] [ 2296/ 295 kb/s] [eta 00m:30s] Threads: 3: [mmm] [51.7% done] [ 925/ 1669 kb/s] [eta 00m:29s] Threads: 3: [mmm] [53.3% done] [ 1918/ 921 kb/s] [eta 00m:28s] Threads: 3: [mmm] [55.0% done] [ 3040/ 192 kb/s] [eta 00m:27s] Threads: 3: [mmm] [56.7% done] [ 2520/ 0 kb/s] [eta 00m:26s] Threads: 3: [mmm] [58.3% done] [ 964/ 1453 kb/s] [eta 00m:25s] Threads: 3: [mmm] [60.0% done] [ 1914/ 448 kb/s] [eta 00m:24s] Threads: 3: [mmm] [61.7% done] [ 1941/ 492 kb/s] [eta 00m:23s] Threads: 3: [mmm] [63.3% done] [ 1969/ 126 kb/s] [eta 00m:22s] Threads: 3: [mmm] [65.0% done] [ 3375/ 338 kb/s] [eta 00m:21s] Threads: 3: [mmm] [66.7% done] [ 3906/ 47 kb/s] [eta 00m:20s] Threads: 3: [mmm] [68.3% done] [ 1469/ 590 kb/s] [eta 00m:19s] Threads: 3: [mmm] [70.0% done] [ 3316/ 437 kb/s] [eta 00m:18s] Threads: 3: [mmm] [71.7% done] [ 2737/ 35 kb/s] [eta 00m:17s] Threads: 3: [mmm] [73.3% done] [ 1055/ 953 kb/s] [eta 00m:16s] Threads: 3: [mmm] [75.0% done] [ 1977/ 1063 kb/s] [eta 00m:15s] Threads: 3: [mmm] [76.7% done] [ 2248/ 39 kb/s] [eta 00m:14s] Threads: 3: [mmm] [78.3% done] [ 2142/ 854 kb/s] [eta 00m:13s] Threads: 3: [mmm] [80.0% done] [ 1977/ 823 kb/s] [eta 00m:12s] Threads: 3: [mmm] [81.7% done] [ 3517/ 326 kb/s] [eta 00m:11s] Threads: 3: [mmm] [83.3% done] [ 2930/ 689 kb/s] [eta 00m:10s] Threads: 3: [mmm] [86.7% done] [ 334/ 1126 kb/s] [eta 00m:08s] Threads: 3: [mmm] [88.3% done] [ 2185/ 464 kb/s] [eta 00m:07s] Threads: 3: [mmm] [90.0% done] [ 795/ 1606 kb/s] [eta 00m:06s] Threads: 3: [mmm] [91.7% done] [ 2225/ 445 kb/s] [eta 00m:05s] Threads: 3: [mmm] [93.3% done] [ 2465/ 248 kb/s] [eta 00m:04s] Threads: 3: [mmm] [95.0% done] [ 3493/ 110 kb/s] [eta 00m:03s] Threads: 3: [mmm] [96.7% done] [ 2004/ 452 kb/s] [eta 00m:02s] Threads: 3: [mmm] [98.3% done] [ 2063/ 712 kb/s] [eta 00m:01s] fio: (groupid=0): err= 0: pid=29628 read : io=38,620KiB, bw=658KiB/s, runt= 60044msec clat (msec): min= 1, max= 689, avg=85.14, stdev=98.33 bw (KiB/s) : min= 31, max= 3121, per=37.20%, avg=871.12, stdev=713.57 write: io=14,328KiB, bw=244KiB/s, runt= 60044msec clat (msec): min= 21, max= 818, avg=180.30, stdev=125.17 bw (KiB/s) : min= 0, max= 1148, per=54.11%, avg=358.78, stdev=303.57 cpu : usr=0.70%, sys=0.49%, ctx=13439 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=1.5%, 10=5.0%, 20=14.5%, 50=17.8%, 100=20.4% lat (msec): 250=28.7%, 500=10.3%, 750=0.9%, 1000=0.2%, >=2000=0.0% fio: (groupid=0): err= 0: pid=29629 read : io=51,468KiB, bw=878KiB/s, runt= 60012msec clat (msec): min= 1, max= 515, avg=76.10, stdev=78.24 bw (KiB/s) : min= 24, max= 4071, per=46.29%, avg=1084.18, stdev=814.38 write: io=10,892KiB, bw=185KiB/s, runt= 60012msec clat (msec): min= 13, max= 622, avg=169.79, stdev=133.55 bw (KiB/s) : min= 0, max= 1041, per=46.55%, avg=308.63, stdev=292.16 cpu : usr=0.71%, sys=0.52%, ctx=15779 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=1.4%, 10=4.3%, 20=16.8%, 50=18.1%, 100=23.7% lat (msec): 250=27.9%, 500=5.9%, 750=1.1%, 1000=0.0%, >=2000=0.0% fio: (groupid=0): err= 0: pid=29630 read : io=47,240KiB, bw=806KiB/s, runt= 60013msec clat (msec): min= 2, max= 529, avg=73.65, stdev=85.43 bw (KiB/s) : min= 8, max= 3043, per=44.71%, avg=1047.05, stdev=804.87 write: io=13,688KiB, bw=233KiB/s, runt= 60013msec clat (msec): min= 8, max= 616, avg=152.24, stdev=116.46 bw (KiB/s) : min= 0, max= 1816, per=59.24%, avg=392.73, stdev=391.94 cpu : usr=0.85%, sys=0.55%, ctx=15439 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=1.4%, 10=7.1%, 20=15.5%, 50=21.6%, 100=19.7% lat (msec): 250=26.0%, 500=7.6%, 750=0.6%, 1000=0.0%, >=2000=0.0% Run status group 0 (all jobs): READ: io=134MiB, aggrb=2,342KiB/s, minb=658KiB/s, maxb=878KiB/s, mint=60012msec, maxt=60044msec WRITE: io=38,908KiB, aggrb=663KiB/s, minb=185KiB/s, maxb=244KiB/s, mint=60012msec, maxt=60044msec Disk stats (read/write): sda: ios=44059/629, merge=0/9185, ticks=152576/33240, in_queue=185812, util=99.71% 1.36user 0.98system 1:00.35elapsed 3%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (44059major+1141minor)pagefaults 0swaps