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] [7.7% done] [ 7542/ 5289 kb/s] [eta 00m:36s] Threads: 3: [mmm] [10.8% done] [ 7605/ 5738 kb/s] [eta 00m:33s] Threads: 3: [mmm] [13.5% done] [ 6908/ 5045 kb/s] [eta 00m:32s] Threads: 3: [mmm] [16.7% done] [ 2585/ 11164 kb/s] [eta 00m:30s] Threads: 3: [mmm] [18.9% done] [ 8648/ 3052 kb/s] [eta 00m:30s] Threads: 3: [mmm] [22.2% done] [ 6212/ 5732 kb/s] [eta 00m:28s] Threads: 3: [mmm] [24.3% done] [ 9640/ 2312 kb/s] [eta 00m:28s] Threads: 3: [mmm] [27.0% done] [ 8080/ 1692 kb/s] [eta 00m:27s] Threads: 3: [mmm] [28.9% done] [ 6488/ 4516 kb/s] [eta 00m:27s] Threads: 3: [mmm] [31.6% done] [ 5288/ 3572 kb/s] [eta 00m:26s] Threads: 3: [mmm] [34.2% done] [ 5539/ 5765 kb/s] [eta 00m:25s] Threads: 3: [mmm] [35.9% done] [ 4880/ 4855 kb/s] [eta 00m:25s] Threads: 3: [mmm] [38.5% done] [ 4388/ 6188 kb/s] [eta 00m:24s] Threads: 3: [mmm] [40.0% done] [ 3035/ 7163 kb/s] [eta 00m:24s] Threads: 3: [mmm] [41.5% done] [ 6485/ 1479 kb/s] [eta 00m:24s] Threads: 3: [mmm] [43.9% done] [ 6070/ 3856 kb/s] [eta 00m:23s] Threads: 3: [mmm] [46.3% done] [ 3067/ 6477 kb/s] [eta 00m:22s] Threads: 3: [mmm] [47.6% done] [ 3080/ 4197 kb/s] [eta 00m:22s] Threads: 3: [mmm] [48.8% done] [ 4234/ 3872 kb/s] [eta 00m:22s] Threads: 3: [mmm] [51.2% done] [ 4555/ 3328 kb/s] [eta 00m:21s] Threads: 3: [mmm] [52.3% done] [ 3230/ 3888 kb/s] [eta 00m:21s] Threads: 3: [mmm] [54.5% done] [ 589/ 7765 kb/s] [eta 00m:20s] Threads: 3: [mmm] [55.6% done] [ 3848/ 2828 kb/s] [eta 00m:20s] Threads: 3: [mmm] [57.8% done] [ 3746/ 2490 kb/s] [eta 00m:19s] Threads: 3: [mmm] [58.7% done] [ 4888/ 1653 kb/s] [eta 00m:19s] Threads: 3: [mmm] [59.6% done] [ 3815/ 2157 kb/s] [eta 00m:19s] Threads: 3: [mmm] [60.4% done] [ 6903/ 824 kb/s] [eta 00m:19s] Threads: 3: [mmm] [60.0% done] [ 3840/ 3612 kb/s] [eta 00m:20s] Threads: 3: [Vmm] [60.8% done] [ 5302/ 3214 kb/s] [eta 00m:20s] Threads: 3: [VVm] [60.4% done] [ 18358/ 8 kb/s] [eta 00m:21s] Threads: 3: [VVm] [61.1% done] [ 18236/ 48 kb/s] [eta 00m:21s] Threads: 3: [VVm] [61.8% done] [ 17623/ 0 kb/s] [eta 00m:21s] Threads: 3: [VVm] [61.4% done] [ 15786/ 93 kb/s] [eta 00m:22s] Threads: 3: [VVm] [62.1% done] [ 16969/ 195 kb/s] [eta 00m:22s] Threads: 1: [__m] [64.9% done] [ 8167/ 3974 kb/s] [eta 00m:20s] Threads: 1: [__V] [70.4% done] [ 9492/ 0 kb/s] [eta 00m:16s] Threads: 1: [__V] [83.0% done] [ 17570/ 0 kb/s] [eta 00m:08s] Threads: 1: [__V] [95.2% done] [ 18549/ 0 kb/s] [eta 00m:02s] fio: (groupid=0): err= 0: pid=12262 read : io=100MiB, bw=2,829KiB/s, runt= 37061msec clat (msec): min= 0, max= 179, avg=12.79, stdev=20.67 bw (KiB/s) : min= 2, max=12927, per=46.32%, avg=3559.11, stdev=3193.02 write: io=50,832KiB, bw=1,683KiB/s, runt= 30915msec clat (msec): min= 0, max= 146, avg=15.57, stdev=15.79 bw (KiB/s) : min= 0, max= 6214, per=59.66%, avg=2233.79, stdev=1703.66 cpu : usr=2.80%, sys=0.26%, ctx=2518 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=6.6%, 10=13.9%, 20=18.7%, 50=26.8%, 100=0.8% lat (msec): 250=1.7%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0% fio: (groupid=0): err= 0: pid=12263 read : io=100MiB, bw=2,834KiB/s, runt= 36987msec clat (msec): min= 0, max= 228, avg=13.69, stdev=20.74 bw (KiB/s) : min= 82, max=11722, per=46.84%, avg=3598.88, stdev=2771.17 write: io=43,588KiB, bw=1,412KiB/s, runt= 31590msec clat (msec): min= 0, max= 121, avg=17.53, stdev=16.35 bw (KiB/s) : min= 0, max= 5883, per=52.40%, avg=1961.80, stdev=1751.54 cpu : usr=2.65%, sys=0.24%, ctx=2351 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=24.9%, 4=7.0%, 10=16.4%, 20=20.0%, 50=28.8%, 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=12264 read : io=100MiB, bw=2,561KiB/s, runt= 40936msec clat (msec): min= 0, max= 246, avg=15.76, stdev=27.12 bw (KiB/s) : min= 7, max=21629, per=38.72%, avg=2975.30, stdev=4594.30 write: io=45,308KiB, bw=1,214KiB/s, runt= 38214msec clat (msec): min= 0, max= 282, avg=18.70, stdev=28.72 bw (KiB/s) : min= 0, max= 7914, per=55.42%, avg=2074.86, stdev=2134.33 cpu : usr=2.37%, sys=0.15%, ctx=2346 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=27.2%, 4=6.3%, 10=15.1%, 20=18.4%, 50=29.2%, 100=1.4% lat (msec): 250=2.2%, 500=0.1%, 750=0.0%, 1000=0.0%, >=2000=0.0% Run status group 0 (all jobs): READ: io=300MiB, aggrb=7,684KiB/s, minb=2,561KiB/s, maxb=2,834KiB/s, mint=36987msec, maxt=40936msec WRITE: io=136MiB, aggrb=3,744KiB/s, minb=1,214KiB/s, maxb=1,683KiB/s, mint=36987msec, maxt=40936msec Disk stats (read/write): sda: ios=5514/2484, merge=745/457, ticks=92112/54160, in_queue=146272, util=98.48% 3.02user 0.42system 0:41.47elapsed 8%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+1098minor)pagefaults 0swaps