== sanity test 398b: DIO and buffer IO race ============== 23:01:48 (1746154908) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB) copied, 2.42529 s, 20.8 MB/s mix direct rw 4096 by fio with 4 jobs... mix buffer rw 4096 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.7 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.7 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=32645: Thu May 1 23:02:32 2025 read: IOPS=38, BW=152KiB/s (156kB/s)(5992KiB/39399msec) clat (usec): min=66, max=237516, avg=11515.62, stdev=12170.96 lat (usec): min=67, max=237516, avg=11517.40, stdev=12171.06 clat percentiles (usec): | 1.00th=[ 83], 5.00th=[ 94], 10.00th=[ 104], 20.00th=[ 141], | 30.00th=[ 5669], 40.00th=[ 7635], 50.00th=[ 9634], 60.00th=[ 11731], | 70.00th=[ 14877], 80.00th=[ 18744], 90.00th=[ 24773], 95.00th=[ 30540], | 99.00th=[ 47973], 99.50th=[ 53740], 99.90th=[ 94897], 99.95th=[238027], | 99.99th=[238027] bw ( KiB/s): min= 23, max= 306, per=24.76%, avg=150.79, stdev=48.09, samples=78 iops : min= 5, max= 76, avg=37.29, stdev=12.11, samples=78 write: IOPS=39, BW=160KiB/s (164kB/s)(6296KiB/39399msec) clat (usec): min=523, max=413835, avg=13939.62, stdev=17956.17 lat (usec): min=524, max=413837, avg=13942.09, stdev=17955.56 clat percentiles (usec): | 1.00th=[ 676], 5.00th=[ 734], 10.00th=[ 791], 20.00th=[ 996], | 30.00th=[ 2311], 40.00th=[ 5342], 50.00th=[ 10290], 60.00th=[ 13435], | 70.00th=[ 17433], 80.00th=[ 23725], 90.00th=[ 33424], 95.00th=[ 42730], | 99.00th=[ 63177], 99.50th=[ 84411], 99.90th=[120062], 99.95th=[413139], | 99.99th=[413139] bw ( KiB/s): min= 55, max= 320, per=25.08%, avg=160.01, stdev=52.79, samples=77 iops : min= 13, max= 80, avg=39.61, stdev=13.32, samples=77 lat (usec) : 100=4.07%, 250=6.90%, 500=0.52%, 750=3.45%, 1000=7.29% lat (msec) : 2=4.65%, 4=4.72%, 10=19.47%, 20=27.47%, 50=19.60% lat (msec) : 100=1.69%, 250=0.13%, 500=0.03% cpu : usr=0.17%, sys=11.84%, ctx=4740, majf=0, minf=36 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=32646: Thu May 1 23:02:32 2025 read: IOPS=38, BW=154KiB/s (158kB/s)(5940KiB/38518msec) clat (usec): min=66, max=44870, avg=10732.09, stdev=9028.56 lat (usec): min=67, max=44872, avg=10735.84, stdev=9030.00 clat percentiles (usec): | 1.00th=[ 82], 5.00th=[ 95], 10.00th=[ 109], 20.00th=[ 151], | 30.00th=[ 5669], 40.00th=[ 7832], 50.00th=[ 9503], 60.00th=[11600], | 70.00th=[14091], 80.00th=[17433], 90.00th=[22938], 95.00th=[27919], | 99.00th=[37487], 99.50th=[41681], 99.90th=[44827], 99.95th=[44827], | 99.99th=[44827] bw ( KiB/s): min= 7, max= 248, per=25.20%, avg=153.47, stdev=44.52, samples=77 iops : min= 1, max= 62, avg=38.04, stdev=11.21, samples=77 write: IOPS=41, BW=165KiB/s (169kB/s)(6348KiB/38518msec) clat (usec): min=581, max=425351, avg=14091.15, stdev=18220.00 lat (usec): min=582, max=425352, avg=14092.75, stdev=18219.88 clat percentiles (usec): | 1.00th=[ 668], 5.00th=[ 742], 10.00th=[ 799], 20.00th=[ 1139], | 30.00th=[ 2606], 40.00th=[ 6063], 50.00th=[ 10159], 60.00th=[ 13698], | 70.00th=[ 17957], 80.00th=[ 23462], 90.00th=[ 32375], 95.00th=[ 41157], | 99.00th=[ 66323], 99.50th=[ 78119], 99.90th=[168821], 99.95th=[425722], | 99.99th=[425722] bw ( KiB/s): min= 7, max= 256, per=25.71%, avg=164.04, stdev=45.73, samples=77 iops : min= 1, max= 64, avg=40.69, stdev=11.50, samples=77 lat (usec) : 100=3.45%, 250=6.97%, 500=0.42%, 750=3.09%, 1000=6.41% lat (msec) : 2=5.14%, 4=4.65%, 10=20.80%, 20=28.68%, 50=18.98% lat (msec) : 100=1.24%, 250=0.13%, 500=0.03% cpu : usr=0.14%, sys=12.15%, ctx=4774, majf=0, minf=34 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=32647: Thu May 1 23:02:32 2025 read: IOPS=38, BW=155KiB/s (159kB/s)(6028KiB/38839msec) clat (usec): min=54, max=117741, avg=10793.26, stdev=10427.53 lat (usec): min=54, max=117742, avg=10795.25, stdev=10429.03 clat percentiles (usec): | 1.00th=[ 78], 5.00th=[ 89], 10.00th=[ 103], 20.00th=[ 130], | 30.00th=[ 5276], 40.00th=[ 7635], 50.00th=[ 9241], 60.00th=[ 11076], | 70.00th=[ 13960], 80.00th=[ 17695], 90.00th=[ 23987], 95.00th=[ 27919], | 99.00th=[ 44827], 99.50th=[ 56361], 99.90th=[100140], 99.95th=[117965], | 99.99th=[117965] bw ( KiB/s): min= 39, max= 261, per=25.58%, avg=155.79, stdev=45.84, samples=76 iops : min= 9, max= 65, avg=38.57, stdev=11.54, samples=76 write: IOPS=40, BW=161KiB/s (165kB/s)(6260KiB/38839msec) clat (usec): min=494, max=535512, avg=14286.64, stdev=20119.72 lat (usec): min=495, max=535514, avg=14288.73, stdev=20119.32 clat percentiles (usec): | 1.00th=[ 668], 5.00th=[ 742], 10.00th=[ 791], 20.00th=[ 1139], | 30.00th=[ 2507], 40.00th=[ 6259], 50.00th=[ 10290], 60.00th=[ 14091], | 70.00th=[ 18220], 80.00th=[ 23725], 90.00th=[ 32900], 95.00th=[ 41157], | 99.00th=[ 69731], 99.50th=[ 80217], 99.90th=[145753], 99.95th=[534774], | 99.99th=[534774] bw ( KiB/s): min= 39, max= 264, per=25.28%, avg=161.28, stdev=43.57, samples=76 iops : min= 9, max= 66, avg=39.93, stdev=10.99, samples=76 lat (usec) : 100=4.26%, 250=7.68%, 500=0.33%, 750=3.26%, 1000=6.61% lat (msec) : 2=4.59%, 4=4.95%, 10=20.35%, 20=27.02%, 50=19.50% lat (msec) : 100=1.20%, 250=0.23%, 750=0.03% cpu : usr=0.10%, sys=11.84%, ctx=4779, majf=0, minf=32 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=32649: Thu May 1 23:02:32 2025 read: IOPS=39, BW=157KiB/s (161kB/s)(6052KiB/38463msec) clat (usec): min=49, max=435632, avg=11204.75, stdev=14573.80 lat (usec): min=50, max=435633, avg=11206.73, stdev=14574.25 clat percentiles (usec): | 1.00th=[ 83], 5.00th=[ 96], 10.00th=[ 105], 20.00th=[ 135], | 30.00th=[ 5669], 40.00th=[ 7898], 50.00th=[ 9765], 60.00th=[ 11469], | 70.00th=[ 14091], 80.00th=[ 17695], 90.00th=[ 23725], 95.00th=[ 28967], | 99.00th=[ 41681], 99.50th=[ 50070], 99.90th=[ 67634], 99.95th=[434111], | 99.99th=[434111] bw ( KiB/s): min= 56, max= 263, per=25.87%, avg=157.55, stdev=46.85, samples=75 iops : min= 14, max= 65, avg=39.05, stdev=11.73, samples=75 write: IOPS=40, BW=162KiB/s (166kB/s)(6236KiB/38463msec) clat (usec): min=567, max=139334, avg=13656.92, stdev=15203.09 lat (usec): min=568, max=139334, avg=13662.11, stdev=15204.08 clat percentiles (usec): | 1.00th=[ 660], 5.00th=[ 742], 10.00th=[ 807], 20.00th=[ 1123], | 30.00th=[ 2212], 40.00th=[ 5538], 50.00th=[ 9634], 60.00th=[ 13304], | 70.00th=[ 17957], 80.00th=[ 22938], 90.00th=[ 32113], 95.00th=[ 41681], | 99.00th=[ 67634], 99.50th=[ 85459], 99.90th=[117965], 99.95th=[139461], | 99.99th=[139461] bw ( KiB/s): min= 31, max= 368, per=25.13%, avg=160.30, stdev=48.92, samples=76 iops : min= 7, max= 92, avg=39.74, stdev=12.28, samples=76 lat (usec) : 50=0.03%, 100=3.48%, 250=7.78%, 500=0.42%, 750=2.96% lat (usec) : 1000=6.51% lat (msec) : 2=5.47%, 4=4.95%, 10=20.02%, 20=27.44%, 50=19.34% lat (msec) : 100=1.46%, 250=0.10%, 500=0.03% cpu : usr=0.18%, sys=11.75%, ctx=4761, majf=0, minf=33 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=609KiB/s (624kB/s), 152KiB/s-157KiB/s (156kB/s-161kB/s), io=23.4MiB (24.6MB), run=38463-39399msec WRITE: bw=638KiB/s (653kB/s), 160KiB/s-165KiB/s (164kB/s-169kB/s), io=24.6MiB (25.7MB), run=38463-39399msec rand-rw: (groupid=0, jobs=1): err= 0: pid=32650: Thu May 1 23:04:26 2025 read: IOPS=9, BW=39.5KiB/s (40.5kB/s)(5992KiB/151668msec) clat (msec): min=3, max=435, avg=13.96, stdev=14.43 lat (msec): min=3, max=435, avg=13.96, stdev=14.43 clat percentiles (msec): | 1.00th=[ 4], 5.00th=[ 6], 10.00th=[ 6], 20.00th=[ 7], | 30.00th=[ 9], 40.00th=[ 10], 50.00th=[ 12], 60.00th=[ 14], | 70.00th=[ 16], 80.00th=[ 18], 90.00th=[ 23], 95.00th=[ 31], | 99.00th=[ 54], 99.50th=[ 66], 99.90th=[ 104], 99.95th=[ 435], | 99.99th=[ 435] bw ( KiB/s): min= 7, max= 152, per=25.71%, avg=40.37, stdev=23.57, samples=294 iops : min= 1, max= 38, avg= 9.80, stdev= 5.93, samples=294 write: IOPS=10, BW=41.5KiB/s (42.5kB/s)(6296KiB/151668msec) clat (msec): min=29, max=267, avg=82.96, stdev=30.86 lat (msec): min=29, max=267, avg=82.97, stdev=30.86 clat percentiles (msec): | 1.00th=[ 40], 5.00th=[ 46], 10.00th=[ 51], 20.00th=[ 58], | 30.00th=[ 64], 40.00th=[ 71], 50.00th=[ 78], 60.00th=[ 85], | 70.00th=[ 92], 80.00th=[ 104], 90.00th=[ 124], 95.00th=[ 142], | 99.00th=[ 184], 99.50th=[ 197], 99.90th=[ 255], 99.95th=[ 268], | 99.99th=[ 268] bw ( KiB/s): min= 15, max= 72, per=25.14%, avg=41.23, stdev=11.34, samples=302 iops : min= 3, max= 18, avg=10.01, stdev= 2.91, samples=302 lat (msec) : 4=0.55%, 10=19.47%, 20=21.87%, 50=11.04%, 100=35.64% lat (msec) : 250=11.33%, 500=0.10% cpu : usr=0.08%, sys=2.43%, ctx=3934, majf=0, minf=32 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=32651: Thu May 1 23:04:26 2025 read: IOPS=9, BW=38.9KiB/s (39.9kB/s)(5940KiB/152582msec) clat (msec): min=2, max=291, avg=14.19, stdev=12.71 lat (msec): min=2, max=291, avg=14.19, stdev=12.71 clat percentiles (msec): | 1.00th=[ 4], 5.00th=[ 6], 10.00th=[ 6], 20.00th=[ 8], | 30.00th=[ 9], 40.00th=[ 11], 50.00th=[ 12], 60.00th=[ 14], | 70.00th=[ 16], 80.00th=[ 18], 90.00th=[ 23], 95.00th=[ 33], | 99.00th=[ 62], 99.50th=[ 80], 99.90th=[ 105], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 7, max= 120, per=25.55%, avg=40.11, stdev=23.36, samples=293 iops : min= 1, max= 30, avg= 9.76, stdev= 5.86, samples=293 write: IOPS=10, BW=41.6KiB/s (42.6kB/s)(6348KiB/152582msec) clat (msec): min=23, max=257, avg=82.68, stdev=31.72 lat (msec): min=23, max=257, avg=82.68, stdev=31.72 clat percentiles (msec): | 1.00th=[ 37], 5.00th=[ 45], 10.00th=[ 50], 20.00th=[ 57], | 30.00th=[ 64], 40.00th=[ 71], 50.00th=[ 78], 60.00th=[ 85], | 70.00th=[ 92], 80.00th=[ 104], 90.00th=[ 124], 95.00th=[ 142], | 99.00th=[ 197], 99.50th=[ 228], 99.90th=[ 255], 99.95th=[ 257], | 99.99th=[ 257] bw ( KiB/s): min= 8, max= 83, per=25.17%, avg=41.28, stdev=11.96, samples=304 iops : min= 2, max= 20, avg=10.05, stdev= 3.03, samples=304 lat (msec) : 4=0.52%, 10=18.78%, 20=22.20%, 50=11.72%, 100=34.83% lat (msec) : 250=11.85%, 500=0.10% cpu : usr=0.08%, sys=2.40%, ctx=3934, majf=0, minf=33 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=32652: Thu May 1 23:04:26 2025 read: IOPS=10, BW=40.0KiB/s (40.0kB/s)(6028KiB/150610msec) clat (msec): min=2, max=147, avg=13.94, stdev=10.70 lat (msec): min=2, max=147, avg=13.95, stdev=10.70 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 6], 10.00th=[ 6], 20.00th=[ 8], | 30.00th=[ 9], 40.00th=[ 10], 50.00th=[ 12], 60.00th=[ 14], | 70.00th=[ 16], 80.00th=[ 18], 90.00th=[ 24], 95.00th=[ 32], | 99.00th=[ 61], 99.50th=[ 71], 99.90th=[ 103], 99.95th=[ 148], | 99.99th=[ 148] bw ( KiB/s): min= 7, max= 128, per=25.88%, avg=40.63, stdev=24.23, samples=294 iops : min= 1, max= 32, avg= 9.87, stdev= 6.08, samples=294 write: IOPS=10, BW=41.6KiB/s (42.6kB/s)(6260KiB/150610msec) clat (msec): min=30, max=530, avg=82.71, stdev=33.04 lat (msec): min=30, max=530, avg=82.71, stdev=33.04 clat percentiles (msec): | 1.00th=[ 40], 5.00th=[ 46], 10.00th=[ 51], 20.00th=[ 57], | 30.00th=[ 63], 40.00th=[ 70], 50.00th=[ 77], 60.00th=[ 85], | 70.00th=[ 94], 80.00th=[ 105], 90.00th=[ 124], 95.00th=[ 142], | 99.00th=[ 186], 99.50th=[ 203], 99.90th=[ 288], 99.95th=[ 531], | 99.99th=[ 531] bw ( KiB/s): min= 15, max= 72, per=25.18%, avg=41.29, stdev=12.14, samples=300 iops : min= 3, max= 18, avg=10.03, stdev= 3.12, samples=300 lat (msec) : 4=0.39%, 10=19.79%, 20=21.84%, 50=11.17%, 100=35.25% lat (msec) : 250=11.46%, 500=0.07%, 750=0.03% cpu : usr=0.06%, sys=2.44%, ctx=3906, majf=0, minf=32 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=32653: Thu May 1 23:04:26 2025 read: IOPS=9, BW=39.9KiB/s (40.9kB/s)(6052KiB/151518msec) clat (msec): min=3, max=143, avg=14.13, stdev=11.98 lat (msec): min=3, max=143, avg=14.13, stdev=11.97 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 6], 10.00th=[ 6], 20.00th=[ 8], | 30.00th=[ 9], 40.00th=[ 10], 50.00th=[ 12], 60.00th=[ 14], | 70.00th=[ 15], 80.00th=[ 18], 90.00th=[ 24], 95.00th=[ 33], | 99.00th=[ 67], 99.50th=[ 88], 99.90th=[ 142], 99.95th=[ 144], | 99.99th=[ 144] bw ( KiB/s): min= 7, max= 135, per=26.62%, avg=41.80, stdev=23.44, samples=287 iops : min= 1, max= 33, avg=10.17, stdev= 5.91, samples=287 write: IOPS=10, BW=41.2KiB/s (42.1kB/s)(6236KiB/151518msec) clat (msec): min=29, max=382, avg=83.28, stdev=32.55 lat (msec): min=29, max=382, avg=83.28, stdev=32.55 clat percentiles (msec): | 1.00th=[ 39], 5.00th=[ 45], 10.00th=[ 51], 20.00th=[ 59], | 30.00th=[ 64], 40.00th=[ 71], 50.00th=[ 77], 60.00th=[ 86], | 70.00th=[ 94], 80.00th=[ 105], 90.00th=[ 124], 95.00th=[ 144], | 99.00th=[ 194], 99.50th=[ 232], 99.90th=[ 309], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 15, max= 64, per=24.93%, avg=40.88, stdev=11.63, samples=302 iops : min= 3, max= 16, avg= 9.92, stdev= 2.98, samples=302 lat (msec) : 4=0.39%, 10=19.66%, 20=22.27%, 50=11.10%, 100=34.54% lat (msec) : 250=11.95%, 500=0.10% cpu : usr=0.04%, sys=2.47%, ctx=3956, majf=0, minf=33 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=157KiB/s (161kB/s), 38.9KiB/s-40.0KiB/s (39.9kB/s-40.0kB/s), io=23.4MiB (24.6MB), run=150610-152582msec WRITE: bw=165KiB/s (169kB/s), 41.2KiB/s-41.6KiB/s (42.1kB/s-42.6kB/s), io=24.6MiB (25.7MB), run=150610-152582msec mix direct rw 16384 by fio with 4 jobs... mix buffer rw 16384 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 16.0KiB-16.0KiB, (W) 16.0KiB-16.0KiB, (T) 16.0KiB-16.0KiB, ioengine=psync, iodepth=16 ... fio-3.7 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 16.0KiB-16.0KiB, (W) 16.0KiB-16.0KiB, (T) 16.0KiB-16.0KiB, ioengine=psync, iodepth=16 ... fio-3.7 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=320: Thu May 1 23:04:37 2025 read: IOPS=37, BW=607KiB/s (622kB/s)(5920KiB/9746msec) clat (usec): min=66, max=87200, avg=13684.33, stdev=12080.50 lat (usec): min=67, max=87201, avg=13686.37, stdev=12080.95 clat percentiles (usec): | 1.00th=[ 77], 5.00th=[ 99], 10.00th=[ 117], 20.00th=[ 2376], | 30.00th=[ 7963], 40.00th=[10159], 50.00th=[12125], 60.00th=[14353], | 70.00th=[16319], 80.00th=[20317], 90.00th=[27132], 95.00th=[32637], | 99.00th=[57410], 99.50th=[84411], 99.90th=[87557], 99.95th=[87557], | 99.99th=[87557] bw ( KiB/s): min= 288, max= 926, per=25.61%, avg=601.58, stdev=180.00, samples=19 iops : min= 18, max= 57, avg=37.16, stdev=11.19, samples=19 write: IOPS=40, BW=653KiB/s (669kB/s)(6368KiB/9746msec) clat (usec): min=860, max=109755, avg=11624.20, stdev=15055.78 lat (usec): min=860, max=109758, avg=11626.17, stdev=15056.05 clat percentiles (usec): | 1.00th=[ 930], 5.00th=[ 1012], 10.00th=[ 1090], 20.00th=[ 1237], | 30.00th=[ 1876], 40.00th=[ 3359], 50.00th=[ 5342], 60.00th=[ 8848], | 70.00th=[ 14091], 80.00th=[ 20317], 90.00th=[ 28967], 95.00th=[ 39060], | 99.00th=[ 79168], 99.50th=[100140], 99.90th=[109577], 99.95th=[109577], | 99.99th=[109577] bw ( KiB/s): min= 416, max= 928, per=26.45%, avg=653.68, stdev=146.26, samples=19 iops : min= 26, max= 58, avg=40.42, stdev= 9.20, samples=19 lat (usec) : 100=2.60%, 250=6.12%, 500=0.13%, 750=0.26%, 1000=2.34% lat (msec) : 2=14.19%, 4=6.90%, 10=17.32%, 20=29.82%, 50=18.36% lat (msec) : 100=1.82%, 250=0.13% cpu : usr=0.13%, sys=12.01%, ctx=1144, majf=0, minf=34 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=321: Thu May 1 23:04:37 2025 read: IOPS=35, BW=563KiB/s (577kB/s)(5744KiB/10195msec) clat (usec): min=81, max=88581, avg=13036.13, stdev=13176.57 lat (usec): min=82, max=88583, avg=13037.37, stdev=13176.62 clat percentiles (usec): | 1.00th=[ 88], 5.00th=[ 104], 10.00th=[ 114], 20.00th=[ 137], | 30.00th=[ 6325], 40.00th=[ 9372], 50.00th=[11469], 60.00th=[13566], | 70.00th=[16581], 80.00th=[20579], 90.00th=[26608], 95.00th=[33162], | 99.00th=[72877], 99.50th=[82314], 99.90th=[88605], 99.95th=[88605], | 99.99th=[88605] bw ( KiB/s): min= 31, max= 1088, per=23.64%, avg=555.20, stdev=282.51, samples=20 iops : min= 1, max= 68, avg=34.20, stdev=17.76, samples=20 write: IOPS=40, BW=642KiB/s (657kB/s)(6544KiB/10195msec) clat (usec): min=960, max=225326, avg=12766.43, stdev=21078.99 lat (usec): min=962, max=225330, avg=12768.20, stdev=21079.07 clat percentiles (usec): | 1.00th=[ 996], 5.00th=[ 1057], 10.00th=[ 1123], 20.00th=[ 1287], | 30.00th=[ 1696], 40.00th=[ 2966], 50.00th=[ 5276], 60.00th=[ 9765], | 70.00th=[ 14091], 80.00th=[ 19006], 90.00th=[ 29754], 95.00th=[ 42206], | 99.00th=[107480], 99.50th=[120062], 99.90th=[225444], 99.95th=[225444], | 99.99th=[225444] bw ( KiB/s): min= 96, max= 958, per=25.25%, avg=623.85, stdev=275.90, samples=20 iops : min= 6, max= 59, avg=38.50, stdev=17.28, samples=20 lat (usec) : 100=1.43%, 250=10.16%, 500=0.39%, 750=0.52%, 1000=0.65% lat (msec) : 2=16.80%, 4=6.77%, 10=16.41%, 20=27.08%, 50=16.93% lat (msec) : 100=2.21%, 250=0.65% cpu : usr=0.16%, sys=11.69%, ctx=1146, majf=0, minf=34 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=322: Thu May 1 23:04:37 2025 read: IOPS=38, BW=624KiB/s (639kB/s)(6256KiB/10033msec) clat (usec): min=67, max=158439, avg=13335.63, stdev=15580.16 lat (usec): min=67, max=158441, avg=13336.80, stdev=15580.20 clat percentiles (usec): | 1.00th=[ 82], 5.00th=[ 100], 10.00th=[ 111], 20.00th=[ 135], | 30.00th=[ 6390], 40.00th=[ 8848], 50.00th=[ 11207], 60.00th=[ 13304], | 70.00th=[ 16319], 80.00th=[ 20579], 90.00th=[ 25822], 95.00th=[ 33817], | 99.00th=[100140], 99.50th=[113771], 99.90th=[158335], 99.95th=[158335], | 99.99th=[158335] bw ( KiB/s): min= 416, max= 1152, per=27.98%, avg=657.26, stdev=179.80, samples=19 iops : min= 26, max= 72, avg=40.84, stdev=11.37, samples=19 write: IOPS=37, BW=601KiB/s (616kB/s)(6032KiB/10033msec) clat (usec): min=832, max=142109, avg=12101.26, stdev=16409.67 lat (usec): min=833, max=142111, avg=12103.01, stdev=16409.74 clat percentiles (usec): | 1.00th=[ 922], 5.00th=[ 1037], 10.00th=[ 1090], 20.00th=[ 1303], | 30.00th=[ 1860], 40.00th=[ 3228], 50.00th=[ 5407], 60.00th=[ 9241], | 70.00th=[ 15401], 80.00th=[ 20579], 90.00th=[ 29230], 95.00th=[ 40109], | 99.00th=[ 86508], 99.50th=[112722], 99.90th=[141558], 99.95th=[141558], | 99.99th=[141558] bw ( KiB/s): min= 63, max= 928, per=24.16%, avg=597.05, stdev=210.06, samples=20 iops : min= 3, max= 58, avg=37.05, stdev=13.25, samples=20 lat (usec) : 100=2.73%, 250=10.16%, 500=0.26%, 750=0.13%, 1000=1.56% lat (msec) : 2=13.54%, 4=6.51%, 10=17.84%, 20=26.04%, 50=19.01% lat (msec) : 100=1.69%, 250=0.52% cpu : usr=0.07%, sys=11.64%, ctx=1113, majf=0, minf=34 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=323: Thu May 1 23:04:37 2025 read: IOPS=37, BW=597KiB/s (611kB/s)(6032KiB/10110msec) clat (usec): min=73, max=87681, avg=11618.43, stdev=11516.48 lat (usec): min=74, max=87682, avg=11620.36, stdev=11516.82 clat percentiles (usec): | 1.00th=[ 81], 5.00th=[ 98], 10.00th=[ 106], 20.00th=[ 120], | 30.00th=[ 1745], 40.00th=[ 8029], 50.00th=[10290], 60.00th=[13173], | 70.00th=[15795], 80.00th=[19268], 90.00th=[25560], 95.00th=[30016], | 99.00th=[51119], 99.50th=[87557], 99.90th=[87557], 99.95th=[87557], | 99.99th=[87557] bw ( KiB/s): min= 95, max= 1238, per=25.06%, avg=588.55, stdev=258.27, samples=20 iops : min= 5, max= 77, avg=36.40, stdev=16.18, samples=20 write: IOPS=38, BW=619KiB/s (634kB/s)(6256KiB/10110msec) clat (usec): min=916, max=160124, avg=14010.89, stdev=21148.62 lat (usec): min=916, max=160125, avg=14012.86, stdev=21148.59 clat percentiles (usec): | 1.00th=[ 955], 5.00th=[ 1045], 10.00th=[ 1139], 20.00th=[ 1352], | 30.00th=[ 2376], 40.00th=[ 3621], 50.00th=[ 6194], 60.00th=[ 9634], | 70.00th=[ 13960], 80.00th=[ 20841], 90.00th=[ 35914], 95.00th=[ 50070], | 99.00th=[107480], 99.50th=[158335], 99.90th=[160433], 99.95th=[160433], | 99.99th=[160433] bw ( KiB/s): min= 159, max= 1216, per=24.67%, avg=609.50, stdev=256.23, samples=20 iops : min= 9, max= 76, avg=37.70, stdev=16.16, samples=20 lat (usec) : 100=3.26%, 250=10.94%, 500=0.26%, 1000=1.43% lat (msec) : 2=12.37%, 4=8.98%, 10=17.32%, 20=25.52%, 50=16.93% lat (msec) : 100=2.34%, 250=0.65% cpu : usr=0.20%, sys=11.19%, ctx=1100, majf=0, minf=33 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=2349KiB/s (2406kB/s), 563KiB/s-624KiB/s (577kB/s-639kB/s), io=23.4MiB (24.5MB), run=9746-10195msec WRITE: bw=2472KiB/s (2531kB/s), 601KiB/s-653KiB/s (616kB/s-669kB/s), io=24.6MiB (25.8MB), run=9746-10195msec rand-rw: (groupid=0, jobs=1): err= 0: pid=316: Thu May 1 23:05:08 2025 read: IOPS=9, BW=146KiB/s (150kB/s)(5920KiB/40423msec) clat (msec): min=3, max=125, avg=14.48, stdev=13.25 lat (msec): min=3, max=125, avg=14.48, stdev=13.25 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 6], 10.00th=[ 6], 20.00th=[ 7], | 30.00th=[ 8], 40.00th=[ 9], 50.00th=[ 10], 60.00th=[ 11], | 70.00th=[ 14], 80.00th=[ 20], 90.00th=[ 31], 95.00th=[ 41], | 99.00th=[ 66], 99.50th=[ 93], 99.90th=[ 126], 99.95th=[ 126], | 99.99th=[ 126] bw ( KiB/s): min= 31, max= 415, per=24.94%, avg=146.92, stdev=83.33, samples=79 iops : min= 1, max= 25, avg= 8.77, stdev= 5.25, samples=79 write: IOPS=9, BW=158KiB/s (161kB/s)(6368KiB/40423msec) clat (msec): min=32, max=230, avg=87.73, stdev=31.33 lat (msec): min=32, max=230, avg=87.74, stdev=31.33 clat percentiles (msec): | 1.00th=[ 42], 5.00th=[ 48], 10.00th=[ 53], 20.00th=[ 61], | 30.00th=[ 69], 40.00th=[ 75], 50.00th=[ 84], 60.00th=[ 92], | 70.00th=[ 100], 80.00th=[ 111], 90.00th=[ 130], 95.00th=[ 142], | 99.00th=[ 199], 99.50th=[ 226], 99.90th=[ 230], 99.95th=[ 230], | 99.99th=[ 230] bw ( KiB/s): min= 63, max= 256, per=25.27%, avg=156.69, stdev=44.21, samples=80 iops : min= 3, max= 16, avg= 9.38, stdev= 2.85, samples=80 lat (msec) : 4=0.13%, 10=26.43%, 20=12.50%, 50=11.98%, 100=33.72% lat (msec) : 250=15.23% cpu : usr=0.01%, sys=2.62%, ctx=960, majf=0, minf=34 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=317: Thu May 1 23:05:08 2025 read: IOPS=8, BW=141KiB/s (145kB/s)(5744KiB/40636msec) clat (msec): min=3, max=149, avg=14.83, stdev=15.18 lat (msec): min=3, max=149, avg=14.83, stdev=15.18 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 6], 10.00th=[ 6], 20.00th=[ 7], | 30.00th=[ 8], 40.00th=[ 9], 50.00th=[ 10], 60.00th=[ 11], | 70.00th=[ 14], 80.00th=[ 19], 90.00th=[ 31], 95.00th=[ 42], | 99.00th=[ 83], 99.50th=[ 90], 99.90th=[ 150], 99.95th=[ 150], | 99.99th=[ 150] bw ( KiB/s): min= 31, max= 479, per=24.86%, avg=146.40, stdev=87.63, samples=78 iops : min= 1, max= 29, avg= 8.77, stdev= 5.59, samples=78 write: IOPS=10, BW=161KiB/s (165kB/s)(6544KiB/40636msec) clat (msec): min=34, max=207, avg=85.93, stdev=31.87 lat (msec): min=34, max=207, avg=85.93, stdev=31.87 clat percentiles (msec): | 1.00th=[ 42], 5.00th=[ 46], 10.00th=[ 52], 20.00th=[ 60], | 30.00th=[ 66], 40.00th=[ 72], 50.00th=[ 79], 60.00th=[ 89], | 70.00th=[ 100], 80.00th=[ 109], 90.00th=[ 129], 95.00th=[ 144], | 99.00th=[ 192], 99.50th=[ 201], 99.90th=[ 207], 99.95th=[ 207], | 99.99th=[ 207] bw ( KiB/s): min= 63, max= 255, per=25.78%, avg=159.86, stdev=45.58, samples=81 iops : min= 3, max= 15, avg= 9.60, stdev= 2.90, samples=81 lat (msec) : 4=0.13%, 10=23.96%, 20=14.45%, 50=10.94%, 100=35.55% lat (msec) : 250=14.97% cpu : usr=0.05%, sys=2.39%, ctx=919, majf=0, minf=32 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=318: Thu May 1 23:05:08 2025 read: IOPS=10, BW=161KiB/s (165kB/s)(6256KiB/38780msec) clat (msec): min=3, max=109, avg=13.60, stdev=11.99 lat (msec): min=3, max=109, avg=13.60, stdev=11.99 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 6], 10.00th=[ 6], 20.00th=[ 8], | 30.00th=[ 8], 40.00th=[ 9], 50.00th=[ 10], 60.00th=[ 12], | 70.00th=[ 13], 80.00th=[ 16], 90.00th=[ 28], 95.00th=[ 37], | 99.00th=[ 70], 99.50th=[ 79], 99.90th=[ 110], 99.95th=[ 110], | 99.99th=[ 110] bw ( KiB/s): min= 31, max= 415, per=27.87%, avg=164.14, stdev=102.08, samples=76 iops : min= 1, max= 25, avg= 9.86, stdev= 6.32, samples=76 write: IOPS=9, BW=156KiB/s (159kB/s)(6032KiB/38780msec) clat (msec): min=37, max=204, avg=88.06, stdev=31.84 lat (msec): min=37, max=204, avg=88.06, stdev=31.84 clat percentiles (msec): | 1.00th=[ 40], 5.00th=[ 48], 10.00th=[ 54], 20.00th=[ 63], | 30.00th=[ 69], 40.00th=[ 77], 50.00th=[ 82], 60.00th=[ 89], | 70.00th=[ 97], 80.00th=[ 108], 90.00th=[ 136], 95.00th=[ 157], | 99.00th=[ 192], 99.50th=[ 203], 99.90th=[ 205], 99.95th=[ 205], | 99.99th=[ 205] bw ( KiB/s): min= 63, max= 256, per=24.93%, avg=154.57, stdev=43.77, samples=77 iops : min= 3, max= 16, avg= 9.26, stdev= 2.78, samples=77 lat (msec) : 4=0.26%, 10=26.04%, 20=17.19%, 50=9.37%, 100=33.85% lat (msec) : 250=13.28% cpu : usr=0.06%, sys=2.55%, ctx=943, majf=0, minf=32 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=319: Thu May 1 23:05:08 2025 read: IOPS=9, BW=150KiB/s (154kB/s)(6032KiB/40091msec) clat (msec): min=3, max=147, avg=16.36, stdev=18.55 lat (msec): min=3, max=147, avg=16.36, stdev=18.55 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 6], 10.00th=[ 6], 20.00th=[ 8], | 30.00th=[ 8], 40.00th=[ 9], 50.00th=[ 10], 60.00th=[ 12], | 70.00th=[ 14], 80.00th=[ 21], 90.00th=[ 31], 95.00th=[ 56], | 99.00th=[ 104], 99.50th=[ 140], 99.90th=[ 148], 99.95th=[ 148], | 99.99th=[ 148] bw ( KiB/s): min= 31, max= 414, per=26.71%, avg=157.34, stdev=86.79, samples=76 iops : min= 1, max= 25, avg= 9.39, stdev= 5.45, samples=76 write: IOPS=9, BW=156KiB/s (160kB/s)(6256KiB/40091msec) clat (msec): min=37, max=269, avg=86.65, stdev=32.25 lat (msec): min=37, max=269, avg=86.66, stdev=32.24 clat percentiles (msec): | 1.00th=[ 42], 5.00th=[ 47], 10.00th=[ 53], 20.00th=[ 61], | 30.00th=[ 68], 40.00th=[ 74], 50.00th=[ 81], 60.00th=[ 89], | 70.00th=[ 99], 80.00th=[ 108], 90.00th=[ 126], 95.00th=[ 148], | 99.00th=[ 192], 99.50th=[ 207], 99.90th=[ 271], 99.95th=[ 271], | 99.99th=[ 271] bw ( KiB/s): min= 63, max= 224, per=25.14%, avg=155.86, stdev=43.98, samples=80 iops : min= 3, max= 14, avg= 9.29, stdev= 2.95, samples=80 lat (msec) : 4=0.39%, 10=24.48%, 20=14.45%, 50=10.81%, 100=35.16% lat (msec) : 250=14.58%, 500=0.13% cpu : usr=0.05%, sys=2.47%, ctx=958, majf=0, minf=31 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=589KiB/s (604kB/s), 141KiB/s-161KiB/s (145kB/s-165kB/s), io=23.4MiB (24.5MB), run=38780-40636msec WRITE: bw=620KiB/s (635kB/s), 156KiB/s-161KiB/s (159kB/s-165kB/s), io=24.6MiB (25.8MB), run=38780-40636msec mix direct rw 1048576 by fio with 4 jobs... mix buffer rw 1048576 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 1024KiB-1024KiB, (W) 1024KiB-1024KiB, (T) 1024KiB-1024KiB, ioengine=psync, iodepth=16 ... fio-3.7 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 1024KiB-1024KiB, (W) 1024KiB-1024KiB, (T) 1024KiB-1024KiB, ioengine=psync, iodepth=16 ... fio-3.7 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=368: Thu May 1 23:05:10 2025 read: IOPS=6, BW=7139KiB/s (7311kB/s)(7168KiB/1004msec) clat (usec): min=1450, max=105613, avg=70982.86, stdev=35624.18 lat (usec): min=1452, max=105614, avg=70984.60, stdev=35624.15 clat percentiles (usec): | 1.00th=[ 1450], 5.00th=[ 1450], 10.00th=[ 1450], 20.00th=[ 53740], | 30.00th=[ 69731], 40.00th=[ 69731], 50.00th=[ 74974], 60.00th=[ 90702], | 70.00th=[ 90702], 80.00th=[100140], 90.00th=[105382], 95.00th=[105382], | 99.00th=[105382], 99.50th=[105382], 99.90th=[105382], 99.95th=[105382], | 99.99th=[105382] bw ( KiB/s): min= 4096, max= 8078, per=41.08%, avg=6087.00, stdev=2815.70, samples=2 iops : min= 4, max= 7, avg= 5.50, stdev= 2.12, samples=2 write: IOPS=4, BW=5100KiB/s (5222kB/s)(5120KiB/1004msec) clat (msec): min=59, max=143, avg=87.42, stdev=38.06 lat (msec): min=59, max=143, avg=87.48, stdev=38.05 clat percentiles (msec): | 1.00th=[ 61], 5.00th=[ 61], 10.00th=[ 61], 20.00th=[ 61], | 30.00th=[ 62], 40.00th=[ 62], 50.00th=[ 62], 60.00th=[ 62], | 70.00th=[ 112], 80.00th=[ 112], 90.00th=[ 144], 95.00th=[ 144], | 99.00th=[ 144], 99.50th=[ 144], 99.90th=[ 144], 99.95th=[ 144], | 99.99th=[ 144] bw ( KiB/s): min= 2019, max= 6144, per=19.67%, avg=4081.50, stdev=2916.82, samples=2 iops : min= 1, max= 6, avg= 3.50, stdev= 3.54, samples=2 lat (msec) : 2=8.33%, 100=58.33%, 250=33.33% cpu : usr=0.00%, sys=20.44%, ctx=415, majf=0, minf=34 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=369: Thu May 1 23:05:10 2025 read: IOPS=1, BW=1482KiB/s (1517kB/s)(2048KiB/1382msec) clat (msec): min=101, max=150, avg=126.15, stdev=34.99 lat (msec): min=101, max=150, avg=126.15, stdev=34.99 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 102], 10.00th=[ 102], 20.00th=[ 102], | 30.00th=[ 102], 40.00th=[ 102], 50.00th=[ 102], 60.00th=[ 150], | 70.00th=[ 150], 80.00th=[ 150], 90.00th=[ 150], 95.00th=[ 150], | 99.00th=[ 150], 99.50th=[ 150], 99.90th=[ 150], 99.95th=[ 150], | 99.99th=[ 150] bw ( KiB/s): min= 2035, max= 2048, per=13.78%, avg=2041.50, stdev= 9.19, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 write: IOPS=7, BW=7410KiB/s (7587kB/s)(10.0MiB/1382msec) clat (msec): min=49, max=213, avg=103.03, stdev=52.40 lat (msec): min=49, max=213, avg=103.15, stdev=52.41 clat percentiles (msec): | 1.00th=[ 51], 5.00th=[ 51], 10.00th=[ 51], 20.00th=[ 56], | 30.00th=[ 63], 40.00th=[ 75], 50.00th=[ 90], 60.00th=[ 101], | 70.00th=[ 111], 80.00th=[ 111], 90.00th=[ 171], 95.00th=[ 213], | 99.00th=[ 213], 99.50th=[ 213], 99.90th=[ 213], 99.95th=[ 213], | 99.99th=[ 213] bw ( KiB/s): min= 4096, max= 6107, per=24.59%, avg=5101.50, stdev=1421.99, samples=2 iops : min= 4, max= 5, avg= 4.50, stdev= 0.71, samples=2 lat (msec) : 50=8.33%, 100=33.33%, 250=58.33% cpu : usr=0.00%, sys=19.55%, ctx=289, majf=0, minf=32 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=370: Thu May 1 23:05:10 2025 read: IOPS=4, BW=5044KiB/s (5165kB/s)(6144KiB/1218msec) clat (usec): min=517, max=150151, avg=56965.90, stdev=64412.00 lat (usec): min=519, max=150152, avg=56967.49, stdev=64411.69 clat percentiles (usec): | 1.00th=[ 519], 5.00th=[ 519], 10.00th=[ 519], 20.00th=[ 1500], | 30.00th=[ 1500], 40.00th=[ 4948], 50.00th=[ 4948], 60.00th=[ 74974], | 70.00th=[109577], 80.00th=[109577], 90.00th=[149947], 95.00th=[149947], | 99.00th=[149947], 99.50th=[149947], 99.90th=[149947], 99.95th=[149947], | 99.99th=[149947] bw ( KiB/s): min= 6144, max= 6144, per=41.46%, avg=6144.00, stdev= 0.00, samples=1 iops : min= 6, max= 6, avg= 6.00, stdev= 0.00, samples=1 write: IOPS=4, BW=5044KiB/s (5165kB/s)(6144KiB/1218msec) clat (msec): min=41, max=404, avg=144.04, stdev=138.41 lat (msec): min=41, max=404, avg=144.13, stdev=138.40 clat percentiles (msec): | 1.00th=[ 42], 5.00th=[ 42], 10.00th=[ 42], 20.00th=[ 57], | 30.00th=[ 57], 40.00th=[ 59], 50.00th=[ 59], 60.00th=[ 116], | 70.00th=[ 186], 80.00th=[ 186], 90.00th=[ 405], 95.00th=[ 405], | 99.00th=[ 405], 99.50th=[ 405], 99.90th=[ 405], 99.95th=[ 405], | 99.99th=[ 405] bw ( KiB/s): min= 4039, max= 4096, per=19.61%, avg=4067.50, stdev=40.31, samples=2 iops : min= 3, max= 4, avg= 3.50, stdev= 0.71, samples=2 lat (usec) : 750=8.33% lat (msec) : 2=8.33%, 10=8.33%, 50=8.33%, 100=25.00%, 250=33.33% lat (msec) : 500=8.33% cpu : usr=0.00%, sys=16.27%, ctx=263, majf=0, minf=31 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=371: Thu May 1 23:05:10 2025 read: IOPS=4, BW=4803KiB/s (4918kB/s)(5120KiB/1066msec) clat (usec): min=423, max=153419, avg=46575.98, stdev=62930.34 lat (usec): min=423, max=153421, avg=46577.17, stdev=62930.55 clat percentiles (usec): | 1.00th=[ 424], 5.00th=[ 424], 10.00th=[ 424], 20.00th=[ 424], | 30.00th=[ 478], 40.00th=[ 478], 50.00th=[ 33817], 60.00th=[ 33817], | 70.00th=[ 44827], 80.00th=[ 44827], 90.00th=[154141], 95.00th=[154141], | 99.00th=[154141], 99.50th=[154141], 99.90th=[154141], 99.95th=[154141], | 99.99th=[154141] bw ( KiB/s): min= 8192, max= 8192, per=55.28%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 8, max= 8, avg= 8.00, stdev= 0.00, samples=1 write: IOPS=6, BW=6724KiB/s (6886kB/s)(7168KiB/1066msec) clat (msec): min=27, max=281, avg=111.46, stdev=90.64 lat (msec): min=27, max=281, avg=111.53, stdev=90.63 clat percentiles (msec): | 1.00th=[ 28], 5.00th=[ 28], 10.00th=[ 28], 20.00th=[ 46], | 30.00th=[ 54], 40.00th=[ 54], 50.00th=[ 71], 60.00th=[ 131], | 70.00th=[ 131], 80.00th=[ 171], 90.00th=[ 284], 95.00th=[ 284], | 99.00th=[ 284], 99.50th=[ 284], 99.90th=[ 284], 99.95th=[ 284], | 99.99th=[ 284] bw ( KiB/s): min= 4071, max= 8192, per=29.56%, avg=6131.50, stdev=2913.99, samples=2 iops : min= 3, max= 8, avg= 5.50, stdev= 3.54, samples=2 lat (usec) : 500=16.67% lat (msec) : 50=33.33%, 100=16.67%, 250=25.00%, 500=8.33% cpu : usr=0.19%, sys=17.37%, ctx=87, majf=0, minf=33 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=14.5MiB/s (15.2MB/s), 1482KiB/s-7139KiB/s (1517kB/s-7311kB/s), io=20.0MiB (20.0MB), run=1004-1382msec WRITE: bw=20.3MiB/s (21.2MB/s), 5044KiB/s-7410KiB/s (5165kB/s-7587kB/s), io=28.0MiB (29.4MB), run=1004-1382msec rand-rw: (groupid=0, jobs=1): err= 0: pid=373: Thu May 1 23:05:11 2025 read: IOPS=4, BW=4352KiB/s (4457kB/s)(7168KiB/1647msec) clat (msec): min=34, max=420, avg=127.55, stdev=137.15 lat (msec): min=34, max=420, avg=127.55, stdev=137.15 clat percentiles (msec): | 1.00th=[ 35], 5.00th=[ 35], 10.00th=[ 35], 20.00th=[ 44], | 30.00th=[ 44], 40.00th=[ 44], 50.00th=[ 73], 60.00th=[ 121], | 70.00th=[ 121], 80.00th=[ 159], 90.00th=[ 422], 95.00th=[ 422], | 99.00th=[ 422], 99.50th=[ 422], 99.90th=[ 422], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 2031, max= 8126, per=36.32%, avg=4066.67, stdev=3515.49, samples=3 iops : min= 1, max= 7, avg= 3.00, stdev= 3.46, samples=3 write: IOPS=3, BW=3109KiB/s (3183kB/s)(5120KiB/1647msec) clat (msec): min=101, max=228, avg=143.84, stdev=55.75 lat (msec): min=101, max=229, avg=143.93, stdev=55.76 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 102], 10.00th=[ 102], 20.00th=[ 102], | 30.00th=[ 105], 40.00th=[ 105], 50.00th=[ 112], 60.00th=[ 112], | 70.00th=[ 174], 80.00th=[ 174], 90.00th=[ 230], 95.00th=[ 230], | 99.00th=[ 230], 99.50th=[ 230], 99.90th=[ 230], 99.95th=[ 230], | 99.99th=[ 230] bw ( KiB/s): min= 2031, max= 6131, per=26.03%, avg=4081.00, stdev=2899.14, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 lat (msec) : 50=25.00%, 100=8.33%, 250=58.33%, 500=8.33% cpu : usr=0.00%, sys=4.07%, ctx=43, majf=0, minf=32 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=374: Thu May 1 23:05:11 2025 read: IOPS=1, BW=1120KiB/s (1147kB/s)(2048KiB/1829msec) clat (usec): min=35995, max=37678, avg=36837.19, stdev=1189.98 lat (usec): min=35997, max=37680, avg=36838.95, stdev=1190.40 clat percentiles (usec): | 1.00th=[35914], 5.00th=[35914], 10.00th=[35914], 20.00th=[35914], | 30.00th=[35914], 40.00th=[35914], 50.00th=[35914], 60.00th=[37487], | 70.00th=[37487], 80.00th=[37487], 90.00th=[37487], 95.00th=[37487], | 99.00th=[37487], 99.50th=[37487], 99.90th=[37487], 99.95th=[37487], | 99.99th=[37487] bw ( KiB/s): min= 2043, max= 2048, per=18.27%, avg=2045.50, stdev= 3.54, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 write: IOPS=5, BW=5599KiB/s (5733kB/s)(10.0MiB/1829msec) clat (msec): min=61, max=384, avg=155.80, stdev=114.84 lat (msec): min=61, max=384, avg=155.87, stdev=114.84 clat percentiles (msec): | 1.00th=[ 62], 5.00th=[ 62], 10.00th=[ 62], 20.00th=[ 72], | 30.00th=[ 75], 40.00th=[ 84], 50.00th=[ 103], 60.00th=[ 122], | 70.00th=[ 188], 80.00th=[ 188], 90.00th=[ 338], 95.00th=[ 384], | 99.00th=[ 384], 99.50th=[ 384], 99.90th=[ 384], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 6144, max= 6144, per=39.19%, avg=6144.00, stdev= 0.00, samples=2 iops : min= 6, max= 6, avg= 6.00, stdev= 0.00, samples=2 lat (msec) : 50=16.67%, 100=33.33%, 250=33.33%, 500=16.67% cpu : usr=0.05%, sys=3.01%, ctx=34, majf=0, minf=32 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=375: Thu May 1 23:05:11 2025 read: IOPS=3, BW=3889KiB/s (3982kB/s)(6144KiB/1580msec) clat (usec): min=25986, max=68770, avg=44717.50, stdev=15643.89 lat (usec): min=25988, max=68772, avg=44719.08, stdev=15644.05 clat percentiles (usec): | 1.00th=[26084], 5.00th=[26084], 10.00th=[26084], 20.00th=[32375], | 30.00th=[32375], 40.00th=[38011], 50.00th=[38011], 60.00th=[51119], | 70.00th=[51643], 80.00th=[51643], 90.00th=[68682], 95.00th=[68682], | 99.00th=[68682], 99.50th=[68682], 99.90th=[68682], 99.95th=[68682], | 99.99th=[68682] bw ( KiB/s): min= 2035, max= 8192, per=45.67%, avg=5113.50, stdev=4353.66, samples=2 iops : min= 1, max= 8, avg= 4.50, stdev= 4.95, samples=2 write: IOPS=3, BW=3889KiB/s (3982kB/s)(6144KiB/1580msec) clat (msec): min=98, max=302, avg=184.42, stdev=85.99 lat (msec): min=98, max=302, avg=184.51, stdev=86.00 clat percentiles (msec): | 1.00th=[ 99], 5.00th=[ 99], 10.00th=[ 99], 20.00th=[ 117], | 30.00th=[ 117], 40.00th=[ 140], 50.00th=[ 140], 60.00th=[ 174], | 70.00th=[ 279], 80.00th=[ 279], 90.00th=[ 305], 95.00th=[ 305], | 99.00th=[ 305], 99.50th=[ 305], 99.90th=[ 305], 99.95th=[ 305], | 99.99th=[ 305] bw ( KiB/s): min= 2035, max= 4096, per=21.69%, avg=3400.67, stdev=1182.77, samples=3 iops : min= 1, max= 4, avg= 2.67, stdev= 1.53, samples=3 lat (msec) : 50=25.00%, 100=33.33%, 250=25.00%, 500=16.67% cpu : usr=0.13%, sys=5.38%, ctx=40, majf=0, minf=32 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=376: Thu May 1 23:05:11 2025 read: IOPS=2, BW=2856KiB/s (2924kB/s)(5120KiB/1793msec) clat (msec): min=59, max=144, avg=110.06, stdev=36.09 lat (msec): min=59, max=144, avg=110.06, stdev=36.09 clat percentiles (msec): | 1.00th=[ 60], 5.00th=[ 60], 10.00th=[ 60], 20.00th=[ 60], | 30.00th=[ 86], 40.00th=[ 86], 50.00th=[ 128], 60.00th=[ 128], | 70.00th=[ 134], 80.00th=[ 134], 90.00th=[ 144], 95.00th=[ 144], | 99.00th=[ 144], 99.50th=[ 144], 99.90th=[ 144], 99.95th=[ 144], | 99.99th=[ 144] bw ( KiB/s): min= 8192, max= 8192, per=73.16%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 8, max= 8, avg= 8.00, stdev= 0.00, samples=1 write: IOPS=3, BW=3998KiB/s (4094kB/s)(7168KiB/1793msec) clat (msec): min=68, max=367, avg=149.37, stdev=105.74 lat (msec): min=68, max=368, avg=149.45, stdev=105.75 clat percentiles (msec): | 1.00th=[ 69], 5.00th=[ 69], 10.00th=[ 69], 20.00th=[ 87], | 30.00th=[ 89], 40.00th=[ 89], 50.00th=[ 100], 60.00th=[ 138], | 70.00th=[ 138], 80.00th=[ 199], 90.00th=[ 368], 95.00th=[ 368], | 99.00th=[ 368], 99.50th=[ 368], 99.90th=[ 368], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 2048, max= 6131, per=26.09%, avg=4089.50, stdev=2887.12, samples=2 iops : min= 2, max= 5, avg= 3.50, stdev= 2.12, samples=2 lat (msec) : 100=50.00%, 250=41.67%, 500=8.33% cpu : usr=0.00%, sys=3.12%, ctx=41, majf=0, minf=31 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=10.9MiB/s (11.5MB/s), 1120KiB/s-4352KiB/s (1147kB/s-4457kB/s), io=20.0MiB (20.0MB), run=1580-1829msec WRITE: bw=15.3MiB/s (16.1MB/s), 3109KiB/s-5599KiB/s (3183kB/s-5733kB/s), io=28.0MiB (29.4MB), run=1580-1829msec mix direct rw 4194304 by fio with 4 jobs... mix buffer rw 4194304 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096KiB-4096KiB, (W) 4096KiB-4096KiB, (T) 4096KiB-4096KiB, ioengine=psync, iodepth=16 ... fio-3.7 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 4096KiB-4096KiB, (W) 4096KiB-4096KiB, (T) 4096KiB-4096KiB, ioengine=psync, iodepth=16 ... fio-3.7 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=383: Thu May 1 23:05:14 2025 read: IOPS=8, BW=32.9MiB/s (34.5MB/s)(12.0MiB/365msec) clat (msec): min=54, max=192, avg=113.99, stdev=70.77 lat (msec): min=54, max=192, avg=114.00, stdev=70.77 clat percentiles (msec): | 1.00th=[ 55], 5.00th=[ 55], 10.00th=[ 55], 20.00th=[ 55], | 30.00th=[ 55], 40.00th=[ 95], 50.00th=[ 95], 60.00th=[ 95], | 70.00th=[ 192], 80.00th=[ 192], 90.00th=[ 192], 95.00th=[ 192], | 99.00th=[ 192], 99.50th=[ 192], 99.90th=[ 192], 99.95th=[ 192], | 99.99th=[ 192] lat (msec) : 100=66.67%, 250=33.33% cpu : usr=0.00%, sys=4.12%, ctx=11, majf=0, minf=30 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=384: Thu May 1 23:05:14 2025 read: IOPS=1, BW=5558KiB/s (5691kB/s)(4096KiB/737msec) clat (nsec): min=224417k, max=224417k, avg=224416946.00, stdev= 0.00 lat (nsec): min=224419k, max=224419k, avg=224419045.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 226], 5.00th=[ 226], 10.00th=[ 226], 20.00th=[ 226], | 30.00th=[ 226], 40.00th=[ 226], 50.00th=[ 226], 60.00th=[ 226], | 70.00th=[ 226], 80.00th=[ 226], 90.00th=[ 226], 95.00th=[ 226], | 99.00th=[ 226], 99.50th=[ 226], 99.90th=[ 226], 99.95th=[ 226], | 99.99th=[ 226] bw ( KiB/s): min= 8175, max= 8175, per=36.77%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=2, BW=10.9MiB/s (11.4MB/s)(8192KiB/737msec) clat (usec): min=238300, max=239083, avg=238691.94, stdev=553.83 lat (usec): min=239461, max=239836, avg=239649.43, stdev=265.16 clat percentiles (msec): | 1.00th=[ 239], 5.00th=[ 239], 10.00th=[ 239], 20.00th=[ 239], | 30.00th=[ 239], 40.00th=[ 239], 50.00th=[ 239], 60.00th=[ 241], | 70.00th=[ 241], 80.00th=[ 241], 90.00th=[ 241], 95.00th=[ 241], | 99.00th=[ 241], 99.50th=[ 241], 99.90th=[ 241], 99.95th=[ 241], | 99.99th=[ 241] bw ( KiB/s): min= 8175, max= 8175, per=34.78%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=100.00% cpu : usr=0.00%, sys=3.12%, ctx=29, majf=0, minf=32 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=385: Thu May 1 23:05:14 2025 write: IOPS=2, BW=8815KiB/s (9026kB/s)(12.0MiB/1394msec) clat (msec): min=264, max=542, avg=448.59, stdev=159.81 lat (msec): min=264, max=542, avg=449.03, stdev=159.71 clat percentiles (msec): | 1.00th=[ 264], 5.00th=[ 264], 10.00th=[ 264], 20.00th=[ 264], | 30.00th=[ 264], 40.00th=[ 542], 50.00th=[ 542], 60.00th=[ 542], | 70.00th=[ 542], 80.00th=[ 542], 90.00th=[ 542], 95.00th=[ 542], | 99.00th=[ 542], 99.50th=[ 542], 99.90th=[ 542], 99.95th=[ 542], | 99.99th=[ 542] bw ( KiB/s): min= 8192, max= 8192, per=34.85%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 750=66.67% cpu : usr=0.22%, sys=7.68%, ctx=52, majf=0, minf=31 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=386: Thu May 1 23:05:14 2025 write: IOPS=2, BW=10.0MiB/s (10.5MB/s)(12.0MiB/1197msec) clat (msec): min=178, max=735, avg=391.38, stdev=300.42 lat (msec): min=178, max=735, avg=391.71, stdev=300.40 clat percentiles (msec): | 1.00th=[ 180], 5.00th=[ 180], 10.00th=[ 180], 20.00th=[ 180], | 30.00th=[ 180], 40.00th=[ 262], 50.00th=[ 262], 60.00th=[ 262], | 70.00th=[ 735], 80.00th=[ 735], 90.00th=[ 735], 95.00th=[ 735], | 99.00th=[ 735], 99.50th=[ 735], 99.90th=[ 735], 99.95th=[ 735], | 99.99th=[ 735] bw ( KiB/s): min=16384, max=16384, per=69.70%, avg=16384.00, stdev= 0.00, samples=1 iops : min= 4, max= 4, avg= 4.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 500=33.33%, 750=33.33% cpu : usr=0.08%, sys=3.26%, ctx=22, majf=0, minf=30 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=21.7MiB/s (22.8MB/s), 5558KiB/s-32.9MiB/s (5691kB/s-34.5MB/s), io=16.0MiB (16.8MB), run=365-737msec WRITE: bw=22.0MiB/s (24.1MB/s), 8815KiB/s-10.9MiB/s (9026kB/s-11.4MB/s), io=32.0MiB (33.6MB), run=737-1394msec rand-rw: (groupid=0, jobs=1): err= 0: pid=388: Thu May 1 23:05:15 2025 read: IOPS=3, BW=13.0MiB/s (13.7MB/s)(12.0MiB/920msec) clat (usec): min=1931, max=577636, avg=296587.40, stdev=288093.69 lat (usec): min=1933, max=577638, avg=296589.31, stdev=288093.56 clat percentiles (usec): | 1.00th=[ 1926], 5.00th=[ 1926], 10.00th=[ 1926], 20.00th=[ 1926], | 30.00th=[ 1926], 40.00th=[308282], 50.00th=[308282], 60.00th=[308282], | 70.00th=[574620], 80.00th=[574620], 90.00th=[574620], 95.00th=[574620], | 99.00th=[574620], 99.50th=[574620], 99.90th=[574620], 99.95th=[574620], | 99.99th=[574620] bw ( KiB/s): min= 8192, max= 8192, per=76.45%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 2=33.33%, 500=33.33%, 750=33.33% cpu : usr=0.22%, sys=13.60%, ctx=575, majf=0, minf=30 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=389: Thu May 1 23:05:15 2025 read: IOPS=0, BW=2679KiB/s (2743kB/s)(4096KiB/1529msec) clat (nsec): min=261215k, max=261215k, avg=261214868.00, stdev= 0.00 lat (nsec): min=261216k, max=261216k, avg=261216352.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 262], 5.00th=[ 262], 10.00th=[ 262], 20.00th=[ 262], | 30.00th=[ 262], 40.00th=[ 262], 50.00th=[ 262], 60.00th=[ 262], | 70.00th=[ 262], 80.00th=[ 262], 90.00th=[ 262], 95.00th=[ 262], | 99.00th=[ 262], 99.50th=[ 262], 99.90th=[ 262], 99.95th=[ 262], | 99.99th=[ 262] bw ( KiB/s): min= 8094, max= 8094, per=75.54%, avg=8094.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=1, BW=5358KiB/s (5486kB/s)(8192KiB/1529msec) clat (msec): min=467, max=766, avg=616.96, stdev=211.86 lat (msec): min=467, max=767, avg=617.36, stdev=211.83 clat percentiles (msec): | 1.00th=[ 468], 5.00th=[ 468], 10.00th=[ 468], 20.00th=[ 468], | 30.00th=[ 468], 40.00th=[ 468], 50.00th=[ 468], 60.00th=[ 768], | 70.00th=[ 768], 80.00th=[ 768], 90.00th=[ 768], 95.00th=[ 768], | 99.00th=[ 768], 99.50th=[ 768], 99.90th=[ 768], 99.95th=[ 768], | 99.99th=[ 768] bw ( KiB/s): min= 8192, max= 8192, per=38.75%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 500=66.67%, 1000=33.33% cpu : usr=0.00%, sys=12.17%, ctx=156, majf=0, minf=32 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=390: Thu May 1 23:05:15 2025 write: IOPS=1, BW=7928KiB/s (8118kB/s)(12.0MiB/1550msec) clat (msec): min=226, max=632, avg=496.15, stdev=233.69 lat (msec): min=226, max=632, avg=496.45, stdev=233.60 clat percentiles (msec): | 1.00th=[ 226], 5.00th=[ 226], 10.00th=[ 226], 20.00th=[ 226], | 30.00th=[ 226], 40.00th=[ 634], 50.00th=[ 634], 60.00th=[ 634], | 70.00th=[ 634], 80.00th=[ 634], 90.00th=[ 634], 95.00th=[ 634], | 99.00th=[ 634], 99.50th=[ 634], 99.90th=[ 634], 99.95th=[ 634], | 99.99th=[ 634] bw ( KiB/s): min= 8192, max= 8192, per=38.75%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 750=66.67% cpu : usr=0.00%, sys=16.27%, ctx=62, majf=0, minf=31 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=391: Thu May 1 23:05:15 2025 write: IOPS=2, BW=8654KiB/s (8861kB/s)(12.0MiB/1420msec) clat (msec): min=223, max=630, avg=459.67, stdev=211.27 lat (msec): min=223, max=631, avg=460.83, stdev=211.65 clat percentiles (msec): | 1.00th=[ 224], 5.00th=[ 224], 10.00th=[ 224], 20.00th=[ 224], | 30.00th=[ 224], 40.00th=[ 527], 50.00th=[ 527], 60.00th=[ 527], | 70.00th=[ 634], 80.00th=[ 634], 90.00th=[ 634], 95.00th=[ 634], | 99.00th=[ 634], 99.50th=[ 634], 99.90th=[ 634], 99.95th=[ 634], | 99.99th=[ 634] bw ( KiB/s): min= 8175, max= 8175, per=38.67%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 750=66.67% cpu : usr=0.07%, sys=19.59%, ctx=73, majf=0, minf=30 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=10.5MiB/s (10.0MB/s), 2679KiB/s-13.0MiB/s (2743kB/s-13.7MB/s), io=16.0MiB (16.8MB), run=920-1529msec WRITE: bw=20.6MiB/s (21.6MB/s), 5358KiB/s-8654KiB/s (5486kB/s-8861kB/s), io=32.0MiB (33.6MB), run=1420-1550msec