== sanity test 398b: DIO and buffer IO race ============== 11:43:05 (1788795785) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 9.61867 s, 5.2 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-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=144128: Mon Sep 7 11:45:31 2026 read: IOPS=12, BW=49.8KiB/s (51.0kB/s)(5992KiB/120245msec) clat (usec): min=22, max=790355, avg=38479.75, stdev=36802.60 lat (usec): min=22, max=790357, avg=38481.74, stdev=36803.30 clat percentiles (usec): | 1.00th=[ 46], 5.00th=[ 57], 10.00th=[ 72], 20.00th=[ 16188], | 30.00th=[ 21627], 40.00th=[ 26346], 50.00th=[ 31065], 60.00th=[ 38011], | 70.00th=[ 45876], 80.00th=[ 56361], 90.00th=[ 76022], 95.00th=[ 93848], | 99.00th=[147850], 99.50th=[193987], 99.90th=[316670], 99.95th=[792724], | 99.99th=[792724] bw ( KiB/s): min= 7, max= 120, per=25.75%, avg=50.21, stdev=22.84, samples=233 iops : min= 1, max= 30, avg=11.93, stdev= 5.73, samples=233 write: IOPS=13, BW=52.4KiB/s (53.6kB/s)(6296KiB/120245msec); 0 zone resets clat (usec): min=785, max=599582, avg=39521.36, stdev=43935.28 lat (usec): min=786, max=599583, avg=39524.76, stdev=43933.69 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1188], 10.00th=[ 1303], 20.00th=[ 3261], | 30.00th=[ 8160], 40.00th=[ 17957], 50.00th=[ 29230], 60.00th=[ 39584], | 70.00th=[ 51119], 80.00th=[ 65274], 90.00th=[ 90702], 95.00th=[123208], | 99.00th=[179307], 99.50th=[231736], 99.90th=[325059], 99.95th=[599786], | 99.99th=[599786] bw ( KiB/s): min= 7, max= 120, per=25.64%, avg=52.30, stdev=21.94, samples=235 iops : min= 1, max= 30, avg=12.46, stdev= 5.52, samples=235 lat (usec) : 50=0.85%, 100=4.52%, 250=0.23%, 500=0.13%, 1000=0.23% lat (msec) : 2=7.71%, 4=3.39%, 10=5.89%, 20=11.62%, 50=37.04% lat (msec) : 100=22.23%, 250=5.92%, 500=0.16%, 750=0.03%, 1000=0.03% cpu : usr=0.07%, sys=5.63%, ctx=6241, majf=0, minf=19 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=144129: Mon Sep 7 11:45:31 2026 read: IOPS=12, BW=48.3KiB/s (49.5kB/s)(5940KiB/122900msec) clat (usec): min=36, max=790298, avg=38117.49, stdev=38050.08 lat (usec): min=36, max=790299, avg=38119.07, stdev=38050.53 clat percentiles (usec): | 1.00th=[ 47], 5.00th=[ 56], 10.00th=[ 66], 20.00th=[ 15270], | 30.00th=[ 21103], 40.00th=[ 25822], 50.00th=[ 30802], 60.00th=[ 36963], | 70.00th=[ 45876], 80.00th=[ 57934], 90.00th=[ 77071], 95.00th=[ 94897], | 99.00th=[145753], 99.50th=[158335], 99.90th=[526386], 99.95th=[792724], | 99.99th=[792724] bw ( KiB/s): min= 7, max= 111, per=24.80%, avg=48.37, stdev=22.80, samples=238 iops : min= 1, max= 27, avg=11.47, stdev= 5.75, samples=238 write: IOPS=12, BW=51.7KiB/s (52.9kB/s)(6348KiB/122900msec); 0 zone resets clat (usec): min=731, max=372771, avg=41524.45, stdev=46280.79 lat (usec): min=731, max=372773, avg=41525.75, stdev=46280.81 clat percentiles (usec): | 1.00th=[ 1074], 5.00th=[ 1188], 10.00th=[ 1352], 20.00th=[ 3523], | 30.00th=[ 8291], 40.00th=[ 17695], 50.00th=[ 28705], 60.00th=[ 39060], | 70.00th=[ 53740], 80.00th=[ 69731], 90.00th=[ 98042], 95.00th=[132645], | 99.00th=[219153], 99.50th=[254804], 99.90th=[325059], 99.95th=[371196], | 99.99th=[371196] bw ( KiB/s): min= 7, max= 135, per=25.06%, avg=51.12, stdev=24.31, samples=240 iops : min= 1, max= 33, avg=12.15, stdev= 6.11, samples=240 lat (usec) : 50=0.81%, 100=5.18%, 250=0.36%, 500=0.03%, 750=0.10% lat (usec) : 1000=0.10% lat (msec) : 2=7.42%, 4=3.71%, 10=5.92%, 20=11.75%, 50=35.35% lat (msec) : 100=22.30%, 250=6.61%, 500=0.29%, 750=0.03%, 1000=0.03% cpu : usr=0.07%, sys=5.37%, ctx=6166, majf=0, minf=18 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=144131: Mon Sep 7 11:45:31 2026 read: IOPS=12, BW=49.2KiB/s (50.4kB/s)(6028KiB/122467msec) clat (usec): min=32, max=804347, avg=39436.78, stdev=39866.79 lat (usec): min=32, max=804348, avg=39440.98, stdev=39865.64 clat percentiles (usec): | 1.00th=[ 46], 5.00th=[ 56], 10.00th=[ 70], 20.00th=[ 15795], | 30.00th=[ 20579], 40.00th=[ 26346], 50.00th=[ 32900], 60.00th=[ 40109], | 70.00th=[ 46924], 80.00th=[ 57934], 90.00th=[ 76022], 95.00th=[ 95945], | 99.00th=[160433], 99.50th=[189793], 99.90th=[566232], 99.95th=[801113], | 99.99th=[801113] bw ( KiB/s): min= 7, max= 111, per=25.24%, avg=49.22, stdev=21.95, samples=239 iops : min= 1, max= 27, avg=11.68, stdev= 5.52, samples=239 write: IOPS=12, BW=51.1KiB/s (52.3kB/s)(6260KiB/122467msec); 0 zone resets clat (usec): min=856, max=355691, avg=39996.90, stdev=43511.18 lat (usec): min=858, max=355692, avg=40000.32, stdev=43511.29 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1205], 10.00th=[ 1336], 20.00th=[ 3326], | 30.00th=[ 8029], 40.00th=[ 17433], 50.00th=[ 28705], 60.00th=[ 39584], | 70.00th=[ 52167], 80.00th=[ 68682], 90.00th=[ 93848], 95.00th=[123208], | 99.00th=[196084], 99.50th=[227541], 99.90th=[304088], 99.95th=[354419], | 99.99th=[354419] bw ( KiB/s): min= 7, max= 120, per=24.96%, avg=50.91, stdev=22.24, samples=240 iops : min= 1, max= 30, avg=12.10, stdev= 5.61, samples=240 lat (usec) : 50=1.01%, 100=4.69%, 250=0.29%, 500=0.07%, 1000=0.29% lat (msec) : 2=7.68%, 4=3.32%, 10=6.64%, 20=11.23%, 50=34.96% lat (msec) : 100=23.31%, 250=6.25%, 500=0.20%, 750=0.03%, 1000=0.03% cpu : usr=0.07%, sys=5.29%, ctx=6187, majf=0, minf=18 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=144133: Mon Sep 7 11:45:31 2026 read: IOPS=12, BW=49.6KiB/s (50.8kB/s)(6052KiB/121957msec) clat (usec): min=22, max=288651, avg=38665.54, stdev=33452.56 lat (usec): min=22, max=288653, avg=38676.16, stdev=33448.43 clat percentiles (usec): | 1.00th=[ 41], 5.00th=[ 55], 10.00th=[ 66], 20.00th=[ 15926], | 30.00th=[ 20841], 40.00th=[ 25822], 50.00th=[ 31327], 60.00th=[ 38536], | 70.00th=[ 46400], 80.00th=[ 56886], 90.00th=[ 78119], 95.00th=[ 98042], | 99.00th=[158335], 99.50th=[200279], 99.90th=[278922], 99.95th=[287310], | 99.99th=[287310] bw ( KiB/s): min= 7, max= 119, per=25.61%, avg=49.94, stdev=23.04, samples=236 iops : min= 1, max= 29, avg=11.86, stdev= 5.81, samples=236 write: IOPS=12, BW=51.1KiB/s (52.4kB/s)(6236KiB/121957msec); 0 zone resets clat (usec): min=944, max=761597, avg=40446.26, stdev=47041.04 lat (usec): min=945, max=761600, avg=40447.88, stdev=47040.84 clat percentiles (usec): | 1.00th=[ 1090], 5.00th=[ 1188], 10.00th=[ 1287], 20.00th=[ 3097], | 30.00th=[ 7635], 40.00th=[ 16057], 50.00th=[ 28705], 60.00th=[ 38011], | 70.00th=[ 50594], 80.00th=[ 69731], 90.00th=[ 99091], 95.00th=[122160], | 99.00th=[193987], 99.50th=[225444], 99.90th=[329253], 99.95th=[759170], | 99.99th=[759170] bw ( KiB/s): min= 7, max= 172, per=24.99%, avg=50.98, stdev=25.40, samples=238 iops : min= 1, max= 43, avg=12.13, stdev= 6.42, samples=238 lat (usec) : 50=1.20%, 100=4.85%, 250=0.13%, 500=0.07%, 750=0.03% lat (usec) : 1000=0.16% lat (msec) : 2=7.71%, 4=3.55%, 10=6.35%, 20=11.56%, 50=35.97% lat (msec) : 100=21.29%, 250=6.97%, 500=0.13%, 1000=0.03% cpu : usr=0.08%, sys=5.36%, ctx=6315, majf=0, minf=19 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=195KiB/s (200kB/s), 48.3KiB/s-49.8KiB/s (49.5kB/s-51.0kB/s), io=23.4MiB (24.6MB), run=120245-122900msec WRITE: bw=205KiB/s (209kB/s), 51.1KiB/s-52.4KiB/s (52.3kB/s-53.6kB/s), io=24.6MiB (25.7MB), run=120245-122900msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144130: Mon Sep 7 11:47:39 2026 read: IOPS=5, BW=23.0KiB/s (24.6kB/s)(5992KiB/249861msec) clat (msec): min=4, max=807, avg=32.04, stdev=42.39 lat (msec): min=4, max=807, avg=32.04, stdev=42.40 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 8], 10.00th=[ 9], 20.00th=[ 11], | 30.00th=[ 14], 40.00th=[ 17], 50.00th=[ 20], 60.00th=[ 24], | 70.00th=[ 31], 80.00th=[ 43], 90.00th=[ 69], 95.00th=[ 99], | 99.00th=[ 174], 99.50th=[ 296], 99.90th=[ 523], 99.95th=[ 810], | 99.99th=[ 810] bw ( KiB/s): min= 7, max= 104, per=28.92%, avg=27.47, stdev=19.64, samples=423 iops : min= 1, max= 26, avg= 6.26, stdev= 4.97, samples=423 write: IOPS=6, BW=25.2KiB/s (25.8kB/s)(6296KiB/249861msec); 0 zone resets clat (msec): min=30, max=611, avg=128.05, stdev=70.78 lat (msec): min=30, max=611, avg=128.05, stdev=70.78 clat percentiles (msec): | 1.00th=[ 42], 5.00th=[ 53], 10.00th=[ 59], 20.00th=[ 72], | 30.00th=[ 84], 40.00th=[ 95], 50.00th=[ 109], 60.00th=[ 127], | 70.00th=[ 146], 80.00th=[ 176], 90.00th=[ 222], 95.00th=[ 268], | 99.00th=[ 376], 99.50th=[ 422], 99.90th=[ 542], 99.95th=[ 609], | 99.99th=[ 609] bw ( KiB/s): min= 7, max= 72, per=25.20%, avg=25.20, stdev=12.80, samples=483 iops : min= 1, max= 18, avg= 5.68, stdev= 3.28, samples=483 lat (msec) : 10=7.45%, 20=17.29%, 50=18.20%, 100=25.88%, 250=27.57% lat (msec) : 500=3.48%, 750=0.10%, 1000=0.03% cpu : usr=0.04%, sys=1.18%, ctx=5284, majf=0, minf=15 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=144132: Mon Sep 7 11:47:39 2026 read: IOPS=5, BW=23.7KiB/s (24.2kB/s)(5940KiB/250858msec) clat (msec): min=3, max=768, avg=31.39, stdev=40.50 lat (msec): min=3, max=768, avg=31.39, stdev=40.50 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 8], 10.00th=[ 9], 20.00th=[ 12], | 30.00th=[ 14], 40.00th=[ 16], 50.00th=[ 20], 60.00th=[ 23], | 70.00th=[ 28], 80.00th=[ 39], 90.00th=[ 71], 95.00th=[ 101], | 99.00th=[ 176], 99.50th=[ 253], 99.90th=[ 376], 99.95th=[ 768], | 99.99th=[ 768] bw ( KiB/s): min= 7, max= 119, per=28.72%, avg=27.28, stdev=19.54, samples=422 iops : min= 1, max= 29, avg= 6.21, stdev= 4.93, samples=422 write: IOPS=6, BW=25.3KiB/s (25.9kB/s)(6348KiB/250858msec); 0 zone resets clat (msec): min=22, max=621, avg=128.49, stdev=72.91 lat (msec): min=22, max=621, avg=128.49, stdev=72.91 clat percentiles (msec): | 1.00th=[ 40], 5.00th=[ 52], 10.00th=[ 59], 20.00th=[ 72], | 30.00th=[ 83], 40.00th=[ 96], 50.00th=[ 109], 60.00th=[ 127], | 70.00th=[ 146], 80.00th=[ 178], 90.00th=[ 224], 95.00th=[ 266], | 99.00th=[ 393], 99.50th=[ 464], 99.90th=[ 600], 99.95th=[ 625], | 99.99th=[ 625] bw ( KiB/s): min= 7, max= 79, per=25.14%, avg=25.14, stdev=13.12, samples=488 iops : min= 1, max= 19, avg= 5.67, stdev= 3.35, samples=488 lat (msec) : 4=0.03%, 10=7.26%, 20=18.91%, 50=17.02%, 100=24.93% lat (msec) : 250=28.29%, 500=3.42%, 750=0.10%, 1000=0.03% cpu : usr=0.04%, sys=1.19%, ctx=5155, majf=0, minf=14 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=144134: Mon Sep 7 11:47:39 2026 read: IOPS=6, BW=24.1KiB/s (24.7kB/s)(6028KiB/249828msec) clat (msec): min=5, max=519, avg=32.90, stdev=36.69 lat (msec): min=5, max=519, avg=32.91, stdev=36.69 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 8], 10.00th=[ 10], 20.00th=[ 12], | 30.00th=[ 15], 40.00th=[ 18], 50.00th=[ 21], 60.00th=[ 26], | 70.00th=[ 33], 80.00th=[ 46], 90.00th=[ 73], 95.00th=[ 99], | 99.00th=[ 167], 99.50th=[ 230], 99.90th=[ 405], 99.95th=[ 518], | 99.99th=[ 518] bw ( KiB/s): min= 7, max= 120, per=27.56%, avg=26.18, stdev=18.63, samples=446 iops : min= 1, max= 30, avg= 5.93, stdev= 4.70, samples=446 write: IOPS=6, BW=25.1KiB/s (25.7kB/s)(6260KiB/249828msec); 0 zone resets clat (msec): min=28, max=841, avg=127.71, stdev=74.48 lat (msec): min=28, max=841, avg=127.71, stdev=74.48 clat percentiles (msec): | 1.00th=[ 43], 5.00th=[ 54], 10.00th=[ 60], 20.00th=[ 72], | 30.00th=[ 84], 40.00th=[ 97], 50.00th=[ 108], 60.00th=[ 124], | 70.00th=[ 142], 80.00th=[ 171], 90.00th=[ 218], 95.00th=[ 262], | 99.00th=[ 397], 99.50th=[ 477], 99.90th=[ 659], 99.95th=[ 844], | 99.99th=[ 844] bw ( KiB/s): min= 7, max= 64, per=24.95%, avg=24.95, stdev=12.96, samples=485 iops : min= 1, max= 16, avg= 5.62, stdev= 3.32, samples=485 lat (msec) : 10=5.27%, 20=18.82%, 50=17.97%, 100=26.63%, 250=27.86% lat (msec) : 500=3.19%, 750=0.23%, 1000=0.03% cpu : usr=0.04%, sys=1.16%, ctx=5064, majf=0, minf=14 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=144135: Mon Sep 7 11:47:39 2026 read: IOPS=6, BW=24.3KiB/s (24.8kB/s)(6052KiB/249483msec) clat (msec): min=5, max=400, avg=31.70, stdev=35.36 lat (msec): min=5, max=400, avg=31.70, stdev=35.36 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 8], 10.00th=[ 10], 20.00th=[ 12], | 30.00th=[ 14], 40.00th=[ 17], 50.00th=[ 20], 60.00th=[ 24], | 70.00th=[ 31], 80.00th=[ 42], 90.00th=[ 68], 95.00th=[ 100], | 99.00th=[ 182], 99.50th=[ 224], 99.90th=[ 321], 99.95th=[ 401], | 99.99th=[ 401] bw ( KiB/s): min= 7, max= 111, per=29.14%, avg=27.69, stdev=19.67, samples=424 iops : min= 1, max= 27, avg= 6.31, stdev= 4.95, samples=424 write: IOPS=6, BW=24.0KiB/s (25.6kB/s)(6236KiB/249483msec); 0 zone resets clat (msec): min=29, max=926, avg=129.04, stdev=78.08 lat (msec): min=29, max=926, avg=129.05, stdev=78.08 clat percentiles (msec): | 1.00th=[ 41], 5.00th=[ 52], 10.00th=[ 60], 20.00th=[ 72], | 30.00th=[ 82], 40.00th=[ 95], 50.00th=[ 109], 60.00th=[ 125], | 70.00th=[ 146], 80.00th=[ 178], 90.00th=[ 224], 95.00th=[ 275], | 99.00th=[ 376], 99.50th=[ 481], 99.90th=[ 818], 99.95th=[ 927], | 99.99th=[ 927] bw ( KiB/s): min= 7, max= 64, per=24.89%, avg=24.89, stdev=13.08, samples=484 iops : min= 1, max= 16, avg= 5.60, stdev= 3.35, samples=484 lat (msec) : 10=6.61%, 20=18.65%, 50=18.42%, 100=25.59%, 250=27.02% lat (msec) : 500=3.48%, 750=0.16%, 1000=0.07% cpu : usr=0.04%, sys=1.14%, ctx=5129, majf=0, minf=15 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=95.7KiB/s (98.0kB/s), 23.7KiB/s-24.3KiB/s (24.2kB/s-24.8kB/s), io=23.4MiB (24.6MB), run=249483-250858msec WRITE: bw=100KiB/s (103kB/s), 24.0KiB/s-25.3KiB/s (25.6kB/s-25.9kB/s), io=24.6MiB (25.7MB), run=249483-250858msec 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-3.19 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-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=144187: Mon Sep 7 11:48:15 2026 read: IOPS=14, BW=237KiB/s (243kB/s)(5920KiB/24988msec) clat (usec): min=25, max=162972, avg=32262.94, stdev=29613.87 lat (usec): min=25, max=162972, avg=32264.02, stdev=29613.84 clat percentiles (usec): | 1.00th=[ 38], 5.00th=[ 49], 10.00th=[ 61], 20.00th=[ 70], | 30.00th=[ 3982], 40.00th=[ 22938], 50.00th=[ 30540], 60.00th=[ 36439], | 70.00th=[ 43779], 80.00th=[ 53740], 90.00th=[ 67634], 95.00th=[ 87557], | 99.00th=[133694], 99.50th=[154141], 99.90th=[162530], 99.95th=[162530], | 99.99th=[162530] bw ( KiB/s): min= 62, max= 572, per=25.71%, avg=237.02, stdev=93.11, samples=49 iops : min= 3, max= 35, avg=14.04, stdev= 5.82, samples=49 write: IOPS=15, BW=255KiB/s (261kB/s)(6368KiB/24988msec); 0 zone resets clat (usec): min=1123, max=203567, avg=31843.82, stdev=35537.32 lat (usec): min=1125, max=203567, avg=31845.86, stdev=35537.24 clat percentiles (usec): | 1.00th=[ 1434], 5.00th=[ 1713], 10.00th=[ 1991], 20.00th=[ 4817], | 30.00th=[ 7963], 40.00th=[ 11469], 50.00th=[ 18220], 60.00th=[ 26346], | 70.00th=[ 39584], 80.00th=[ 58459], 90.00th=[ 79168], 95.00th=[ 95945], | 99.00th=[177210], 99.50th=[200279], 99.90th=[204473], 99.95th=[204473], | 99.99th=[204473] bw ( KiB/s): min= 28, max= 571, per=26.36%, avg=255.65, stdev=102.01, samples=49 iops : min= 1, max= 35, avg=15.22, stdev= 6.43, samples=49 lat (usec) : 50=2.47%, 100=10.81%, 250=0.65%, 750=0.13% lat (msec) : 2=5.47%, 4=2.99%, 10=10.68%, 20=10.68%, 50=32.55% lat (msec) : 100=20.57%, 250=2.99% cpu : usr=0.13%, sys=6.25%, ctx=1312, majf=0, minf=16 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=144188: Mon Sep 7 11:48:15 2026 read: IOPS=13, BW=221KiB/s (227kB/s)(5744KiB/25958msec) clat (usec): min=25, max=189410, avg=32672.27, stdev=29164.69 lat (usec): min=25, max=189410, avg=32673.34, stdev=29164.73 clat percentiles (usec): | 1.00th=[ 40], 5.00th=[ 53], 10.00th=[ 58], 20.00th=[ 69], | 30.00th=[ 15401], 40.00th=[ 24773], 50.00th=[ 30802], 60.00th=[ 38536], | 70.00th=[ 44827], 80.00th=[ 53740], 90.00th=[ 68682], 95.00th=[ 85459], | 99.00th=[135267], 99.50th=[160433], 99.90th=[189793], 99.95th=[189793], | 99.99th=[189793] bw ( KiB/s): min= 28, max= 476, per=24.52%, avg=226.06, stdev=108.65, samples=50 iops : min= 1, max= 29, avg=13.34, stdev= 6.84, samples=50 write: IOPS=15, BW=252KiB/s (258kB/s)(6544KiB/25958msec); 0 zone resets clat (usec): min=1388, max=274257, avg=34172.00, stdev=41739.29 lat (usec): min=1390, max=274259, avg=34174.03, stdev=41739.24 clat percentiles (usec): | 1.00th=[ 1532], 5.00th=[ 1762], 10.00th=[ 2114], 20.00th=[ 4359], | 30.00th=[ 7111], 40.00th=[ 10683], 50.00th=[ 16057], 60.00th=[ 27919], | 70.00th=[ 41681], 80.00th=[ 58459], 90.00th=[ 84411], 95.00th=[122160], | 99.00th=[191890], 99.50th=[204473], 99.90th=[274727], 99.95th=[274727], | 99.99th=[274727] bw ( KiB/s): min= 28, max= 476, per=25.99%, avg=252.08, stdev=102.59, samples=51 iops : min= 1, max= 29, avg=14.98, stdev= 6.43, samples=51 lat (usec) : 50=2.08%, 100=10.03%, 250=0.39%, 500=0.26%, 750=0.13% lat (msec) : 2=4.69%, 4=5.21%, 10=10.94%, 20=11.07%, 50=30.99% lat (msec) : 100=19.53%, 250=4.56%, 500=0.13% cpu : usr=0.08%, sys=5.99%, ctx=1291, majf=0, minf=15 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=144189: Mon Sep 7 11:48:15 2026 read: IOPS=15, BW=242KiB/s (248kB/s)(6256KiB/25845msec) clat (usec): min=34, max=247487, avg=36163.54, stdev=32965.78 lat (usec): min=34, max=247489, avg=36164.65, stdev=32965.77 clat percentiles (usec): | 1.00th=[ 41], 5.00th=[ 56], 10.00th=[ 62], 20.00th=[ 76], | 30.00th=[ 18744], 40.00th=[ 26346], 50.00th=[ 32637], 60.00th=[ 40633], | 70.00th=[ 47449], 80.00th=[ 60556], 90.00th=[ 73925], 95.00th=[ 86508], | 99.00th=[170918], 99.50th=[173016], 99.90th=[248513], 99.95th=[248513], | 99.99th=[248513] bw ( KiB/s): min= 125, max= 479, per=26.55%, avg=244.78, stdev=76.72, samples=50 iops : min= 7, max= 29, avg=14.52, stdev= 4.79, samples=50 write: IOPS=14, BW=233KiB/s (239kB/s)(6032KiB/25845msec); 0 zone resets clat (usec): min=1158, max=151337, avg=30840.61, stdev=31982.14 lat (usec): min=1160, max=151339, avg=30842.43, stdev=31982.14 clat percentiles (usec): | 1.00th=[ 1450], 5.00th=[ 1647], 10.00th=[ 1795], 20.00th=[ 3720], | 30.00th=[ 6390], 40.00th=[ 11863], 50.00th=[ 16712], 60.00th=[ 29492], | 70.00th=[ 40633], 80.00th=[ 57410], 90.00th=[ 77071], 95.00th=[101188], | 99.00th=[129500], 99.50th=[141558], 99.90th=[152044], 99.95th=[152044], | 99.99th=[152044] bw ( KiB/s): min= 62, max= 539, per=23.86%, avg=231.40, stdev=98.71, samples=50 iops : min= 3, max= 33, avg=13.68, stdev= 6.23, samples=50 lat (usec) : 50=1.69%, 100=10.29%, 250=0.52%, 500=0.13%, 750=0.13% lat (msec) : 2=6.51%, 4=4.30%, 10=7.94%, 20=11.20%, 50=31.38% lat (msec) : 100=21.61%, 250=4.30% cpu : usr=0.09%, sys=5.66%, ctx=1354, majf=0, minf=15 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=144191: Mon Sep 7 11:48:15 2026 read: IOPS=15, BW=246KiB/s (252kB/s)(6032KiB/24503msec) clat (usec): min=31, max=296837, avg=34001.15, stdev=33404.52 lat (usec): min=31, max=296837, avg=34002.31, stdev=33404.62 clat percentiles (usec): | 1.00th=[ 39], 5.00th=[ 52], 10.00th=[ 60], 20.00th=[ 72], | 30.00th=[ 14484], 40.00th=[ 24249], 50.00th=[ 30278], 60.00th=[ 36963], | 70.00th=[ 44303], 80.00th=[ 53740], 90.00th=[ 76022], 95.00th=[ 96994], | 99.00th=[133694], 99.50th=[158335], 99.90th=[295699], 99.95th=[295699], | 99.99th=[295699] bw ( KiB/s): min= 31, max= 510, per=26.44%, avg=243.81, stdev=104.65, samples=48 iops : min= 1, max= 31, avg=14.48, stdev= 6.57, samples=48 write: IOPS=15, BW=255KiB/s (261kB/s)(6256KiB/24503msec); 0 zone resets clat (usec): min=1078, max=248100, avg=29555.77, stdev=33568.34 lat (usec): min=1079, max=248102, avg=29560.96, stdev=33570.43 clat percentiles (usec): | 1.00th=[ 1500], 5.00th=[ 1680], 10.00th=[ 2114], 20.00th=[ 4113], | 30.00th=[ 6915], 40.00th=[ 11338], 50.00th=[ 16909], 60.00th=[ 24773], | 70.00th=[ 34866], 80.00th=[ 50070], 90.00th=[ 73925], 95.00th=[ 93848], | 99.00th=[143655], 99.50th=[179307], 99.90th=[248513], 99.95th=[248513], | 99.99th=[248513] bw ( KiB/s): min= 93, max= 507, per=26.33%, avg=255.44, stdev=94.33, samples=48 iops : min= 5, max= 31, avg=15.21, stdev= 5.94, samples=48 lat (usec) : 50=1.82%, 100=11.07%, 250=0.65%, 750=0.13% lat (msec) : 2=5.08%, 4=5.21%, 10=9.38%, 20=10.16%, 50=34.64% lat (msec) : 100=17.45%, 250=4.30%, 500=0.13% cpu : usr=0.08%, sys=6.21%, ctx=1307, majf=0, minf=16 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=923KiB/s (945kB/s), 221KiB/s-246KiB/s (227kB/s-252kB/s), io=23.4MiB (24.5MB), run=24503-25958msec WRITE: bw=971KiB/s (994kB/s), 233KiB/s-255KiB/s (239kB/s-261kB/s), io=24.6MiB (25.8MB), run=24503-25958msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144190: Mon Sep 7 11:48:52 2026 read: IOPS=5, BW=93.0KiB/s (96.3kB/s)(5920KiB/62981msec) clat (msec): min=5, max=259, avg=34.51, stdev=32.21 lat (msec): min=5, max=259, avg=34.51, stdev=32.21 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 24], 60.00th=[ 30], | 70.00th=[ 36], 80.00th=[ 46], 90.00th=[ 69], 95.00th=[ 93], | 99.00th=[ 171], 99.50th=[ 199], 99.90th=[ 259], 99.95th=[ 259], | 99.99th=[ 259] bw ( KiB/s): min= 31, max= 319, per=27.33%, avg=103.58, stdev=66.64, samples=111 iops : min= 1, max= 19, avg= 5.71, stdev= 4.22, samples=111 write: IOPS=6, BW=101KiB/s (104kB/s)(6368KiB/62981msec); 0 zone resets clat (msec): min=30, max=453, avg=125.41, stdev=62.19 lat (msec): min=30, max=453, avg=125.42, stdev=62.19 clat percentiles (msec): | 1.00th=[ 39], 5.00th=[ 52], 10.00th=[ 61], 20.00th=[ 77], | 30.00th=[ 87], 40.00th=[ 97], 50.00th=[ 113], 60.00th=[ 128], | 70.00th=[ 142], 80.00th=[ 169], 90.00th=[ 207], 95.00th=[ 251], | 99.00th=[ 321], 99.50th=[ 347], 99.90th=[ 456], 99.95th=[ 456], | 99.99th=[ 456] bw ( KiB/s): min= 30, max= 256, per=26.01%, avg=103.78, stdev=45.61, samples=120 iops : min= 1, max= 16, avg= 5.73, stdev= 2.95, samples=120 lat (msec) : 10=2.60%, 20=17.32%, 50=22.14%, 100=25.91%, 250=29.30% lat (msec) : 500=2.73% cpu : usr=0.06%, sys=1.29%, ctx=1294, majf=0, minf=13 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=144192: Mon Sep 7 11:48:52 2026 read: IOPS=5, BW=90.0KiB/s (93.2kB/s)(5744KiB/63125msec) clat (msec): min=6, max=293, avg=32.94, stdev=33.58 lat (msec): min=6, max=293, avg=32.94, stdev=33.58 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 19], 50.00th=[ 22], 60.00th=[ 26], | 70.00th=[ 32], 80.00th=[ 42], 90.00th=[ 69], 95.00th=[ 93], | 99.00th=[ 161], 99.50th=[ 292], 99.90th=[ 292], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 30, max= 317, per=27.09%, avg=102.68, stdev=66.31, samples=109 iops : min= 1, max= 19, avg= 5.67, stdev= 4.25, samples=109 write: IOPS=6, BW=104KiB/s (106kB/s)(6544KiB/63125msec); 0 zone resets clat (msec): min=38, max=498, avg=124.93, stdev=61.90 lat (msec): min=38, max=498, avg=124.93, stdev=61.89 clat percentiles (msec): | 1.00th=[ 45], 5.00th=[ 58], 10.00th=[ 64], 20.00th=[ 78], | 30.00th=[ 87], 40.00th=[ 97], 50.00th=[ 113], 60.00th=[ 128], | 70.00th=[ 142], 80.00th=[ 167], 90.00th=[ 194], 95.00th=[ 245], | 99.00th=[ 330], 99.50th=[ 384], 99.90th=[ 498], 99.95th=[ 498], | 99.99th=[ 498] bw ( KiB/s): min= 30, max= 256, per=25.73%, avg=102.68, stdev=46.67, samples=124 iops : min= 1, max= 16, avg= 5.66, stdev= 3.02, samples=124 lat (msec) : 10=3.39%, 20=17.19%, 50=19.14%, 100=28.39%, 250=29.04% lat (msec) : 500=2.86% cpu : usr=0.04%, sys=1.31%, ctx=1317, majf=0, minf=10 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=144193: Mon Sep 7 11:48:52 2026 read: IOPS=6, BW=102KiB/s (105kB/s)(6256KiB/61192msec) clat (msec): min=7, max=372, avg=32.17, stdev=30.10 lat (msec): min=7, max=372, avg=32.17, stdev=30.10 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 16], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 24], 60.00th=[ 28], | 70.00th=[ 33], 80.00th=[ 43], 90.00th=[ 59], 95.00th=[ 84], | 99.00th=[ 138], 99.50th=[ 184], 99.90th=[ 372], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 30, max= 414, per=29.91%, avg=113.36, stdev=79.07, samples=109 iops : min= 1, max= 25, avg= 6.33, stdev= 5.03, samples=109 write: IOPS=6, BW=98.6KiB/s (101kB/s)(6032KiB/61192msec); 0 zone resets clat (msec): min=26, max=388, avg=128.62, stdev=62.96 lat (msec): min=26, max=388, avg=128.63, stdev=62.96 clat percentiles (msec): | 1.00th=[ 36], 5.00th=[ 57], 10.00th=[ 66], 20.00th=[ 77], | 30.00th=[ 88], 40.00th=[ 101], 50.00th=[ 114], 60.00th=[ 130], | 70.00th=[ 148], 80.00th=[ 174], 90.00th=[ 213], 95.00th=[ 264], | 99.00th=[ 317], 99.50th=[ 338], 99.90th=[ 388], 99.95th=[ 388], | 99.99th=[ 388] bw ( KiB/s): min= 31, max= 192, per=24.79%, avg=98.90, stdev=42.09, samples=120 iops : min= 1, max= 12, avg= 5.43, stdev= 2.73, samples=120 lat (msec) : 10=3.12%, 20=16.02%, 50=25.39%, 100=24.35%, 250=27.73% lat (msec) : 500=3.39% cpu : usr=0.04%, sys=1.36%, ctx=1326, majf=0, minf=11 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=144194: Mon Sep 7 11:48:52 2026 read: IOPS=6, BW=96.8KiB/s (99.1kB/s)(6032KiB/62326msec) clat (msec): min=5, max=289, avg=34.35, stdev=37.79 lat (msec): min=5, max=289, avg=34.35, stdev=37.79 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 18], 50.00th=[ 23], 60.00th=[ 27], | 70.00th=[ 33], 80.00th=[ 43], 90.00th=[ 74], 95.00th=[ 105], | 99.00th=[ 230], 99.50th=[ 279], 99.90th=[ 292], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 30, max= 349, per=28.53%, avg=108.13, stdev=71.00, samples=109 iops : min= 1, max= 21, avg= 6.02, stdev= 4.53, samples=109 write: IOPS=6, BW=100KiB/s (103kB/s)(6256KiB/62326msec); 0 zone resets clat (msec): min=37, max=383, avg=125.40, stdev=60.30 lat (msec): min=37, max=383, avg=125.40, stdev=60.30 clat percentiles (msec): | 1.00th=[ 44], 5.00th=[ 54], 10.00th=[ 65], 20.00th=[ 74], | 30.00th=[ 86], 40.00th=[ 99], 50.00th=[ 111], 60.00th=[ 126], | 70.00th=[ 148], 80.00th=[ 174], 90.00th=[ 205], 95.00th=[ 239], | 99.00th=[ 326], 99.50th=[ 351], 99.90th=[ 384], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 30, max= 256, per=25.45%, avg=101.55, stdev=48.07, samples=121 iops : min= 1, max= 16, avg= 5.59, stdev= 3.06, samples=121 lat (msec) : 10=2.99%, 20=18.88%, 50=21.09%, 100=24.87%, 250=29.56% lat (msec) : 500=2.60% cpu : usr=0.03%, sys=1.36%, ctx=1367, majf=0, minf=12 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=379KiB/s (389kB/s), 90.0KiB/s-102KiB/s (93.2kB/s-105kB/s), io=23.4MiB (24.5MB), run=61192-63125msec WRITE: bw=399KiB/s (409kB/s), 98.6KiB/s-104KiB/s (101kB/s-106kB/s), io=24.6MiB (25.8MB), run=61192-63125msec 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-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 1024KiB-1024KiB, (W) 1024KiB-1024KiB, (T) 1024KiB-1024KiB, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=144215: Mon Sep 7 11:49:07 2026 read: IOPS=2, BW=2239KiB/s (2292kB/s)(7168KiB/3202msec) clat (msec): min=152, max=401, avg=248.83, stdev=78.68 lat (msec): min=152, max=401, avg=248.83, stdev=78.68 clat percentiles (msec): | 1.00th=[ 153], 5.00th=[ 153], 10.00th=[ 153], 20.00th=[ 203], | 30.00th=[ 215], 40.00th=[ 215], 50.00th=[ 243], 60.00th=[ 243], | 70.00th=[ 243], 80.00th=[ 284], 90.00th=[ 401], 95.00th=[ 401], | 99.00th=[ 401], 99.50th=[ 401], 99.90th=[ 401], 99.95th=[ 401], | 99.99th=[ 401] bw ( KiB/s): min= 1965, max= 4023, per=56.87%, avg=2991.50, stdev=1138.52, samples=4 iops : min= 1, max= 3, avg= 2.25, stdev= 0.96, samples=4 write: IOPS=1, BW=1599KiB/s (1637kB/s)(5120KiB/3202msec); 0 zone resets clat (msec): min=136, max=493, avg=291.79, stdev=142.60 lat (msec): min=136, max=494, avg=291.88, stdev=142.60 clat percentiles (msec): | 1.00th=[ 138], 5.00th=[ 138], 10.00th=[ 138], 20.00th=[ 138], | 30.00th=[ 211], 40.00th=[ 211], 50.00th=[ 243], 60.00th=[ 243], | 70.00th=[ 376], 80.00th=[ 376], 90.00th=[ 493], 95.00th=[ 493], | 99.00th=[ 493], 99.50th=[ 493], 99.90th=[ 493], 99.95th=[ 493], | 99.99th=[ 493] bw ( KiB/s): min= 1924, max= 4071, per=33.97%, avg=2502.00, stdev=1047.27, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 lat (msec) : 250=66.67%, 500=33.33% cpu : usr=0.00%, sys=14.74%, ctx=190, majf=0, minf=11 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=144216: Mon Sep 7 11:49:07 2026 read: IOPS=0, BW=553KiB/s (566kB/s)(2048KiB/3706msec) clat (usec): min=658, max=620593, avg=310626.14, stdev=438360.24 lat (usec): min=659, max=620594, avg=310627.17, stdev=438360.12 clat percentiles (usec): | 1.00th=[ 660], 5.00th=[ 660], 10.00th=[ 660], 20.00th=[ 660], | 30.00th=[ 660], 40.00th=[ 660], 50.00th=[ 660], 60.00th=[616563], | 70.00th=[616563], 80.00th=[616563], 90.00th=[616563], 95.00th=[616563], | 99.00th=[616563], 99.50th=[616563], 99.90th=[616563], 99.95th=[616563], | 99.99th=[616563] bw ( KiB/s): min= 1492, max= 1969, per=32.90%, avg=1730.50, stdev=337.29, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2763KiB/s (2829kB/s)(10.0MiB/3706msec); 0 zone resets clat (msec): min=105, max=921, avg=308.28, stdev=246.42 lat (msec): min=105, max=922, avg=308.35, stdev=246.43 clat percentiles (msec): | 1.00th=[ 106], 5.00th=[ 106], 10.00th=[ 106], 20.00th=[ 138], | 30.00th=[ 142], 40.00th=[ 161], 50.00th=[ 218], 60.00th=[ 236], | 70.00th=[ 321], 80.00th=[ 351], 90.00th=[ 493], 95.00th=[ 919], | 99.00th=[ 919], 99.50th=[ 919], 99.90th=[ 919], 99.95th=[ 919], | 99.99th=[ 919] bw ( KiB/s): min= 3915, max= 4031, per=53.89%, avg=3969.00, stdev=52.44, samples=4 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=4 lat (usec) : 750=8.33% lat (msec) : 250=50.00%, 500=25.00%, 750=8.33%, 1000=8.33% cpu : usr=0.00%, sys=12.06%, ctx=143, majf=0, minf=13 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=144217: Mon Sep 7 11:49:07 2026 read: IOPS=1, BW=1578KiB/s (1616kB/s)(6144KiB/3893msec) clat (usec): min=487, max=735371, avg=222492.86, stdev=271609.30 lat (usec): min=488, max=735372, avg=222494.14, stdev=271609.11 clat percentiles (usec): | 1.00th=[ 490], 5.00th=[ 490], 10.00th=[ 490], 20.00th=[ 611], | 30.00th=[ 611], 40.00th=[143655], 50.00th=[143655], 60.00th=[202376], | 70.00th=[250610], 80.00th=[250610], 90.00th=[734004], 95.00th=[734004], | 99.00th=[734004], 99.50th=[734004], 99.90th=[734004], 99.95th=[734004], | 99.99th=[734004] bw ( KiB/s): min= 1969, max= 4039, per=47.84%, avg=2516.50, stdev=1015.46, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1578KiB/s (1616kB/s)(6144KiB/3893msec); 0 zone resets clat (msec): min=150, max=1226, avg=425.82, stdev=411.97 lat (msec): min=150, max=1226, avg=426.09, stdev=411.88 clat percentiles (msec): | 1.00th=[ 150], 5.00th=[ 150], 10.00th=[ 150], 20.00th=[ 167], | 30.00th=[ 167], 40.00th=[ 230], 50.00th=[ 230], 60.00th=[ 284], | 70.00th=[ 498], 80.00th=[ 498], 90.00th=[ 1234], 95.00th=[ 1234], | 99.00th=[ 1234], 99.50th=[ 1234], 99.90th=[ 1234], 99.95th=[ 1234], | 99.99th=[ 1234] bw ( KiB/s): min= 1969, max= 4039, per=37.32%, avg=2748.75, stdev=976.56, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 lat (usec) : 500=8.33%, 750=8.33% lat (msec) : 250=41.67%, 500=25.00%, 750=8.33%, 2000=8.33% cpu : usr=0.03%, sys=10.07%, ctx=157, majf=0, minf=13 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=144218: Mon Sep 7 11:49:07 2026 read: IOPS=1, BW=1567KiB/s (1605kB/s)(5120KiB/3267msec) clat (usec): min=488, max=275156, avg=95506.01, stdev=131421.00 lat (usec): min=489, max=275157, avg=95506.91, stdev=131421.20 clat percentiles (usec): | 1.00th=[ 490], 5.00th=[ 490], 10.00th=[ 490], 20.00th=[ 490], | 30.00th=[ 490], 40.00th=[ 490], 50.00th=[ 3982], 60.00th=[ 3982], | 70.00th=[198181], 80.00th=[198181], 90.00th=[274727], 95.00th=[274727], | 99.00th=[274727], 99.50th=[274727], 99.90th=[274727], 99.95th=[274727], | 99.99th=[274727] bw ( KiB/s): min= 2043, max= 5907, per=75.57%, avg=3975.00, stdev=2732.26, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=2, BW=2194KiB/s (2247kB/s)(7168KiB/3267msec); 0 zone resets clat (msec): min=218, max=1018, avg=397.84, stdev=280.16 lat (msec): min=218, max=1018, avg=398.00, stdev=280.11 clat percentiles (msec): | 1.00th=[ 220], 5.00th=[ 220], 10.00th=[ 220], 20.00th=[ 247], | 30.00th=[ 271], 40.00th=[ 271], 50.00th=[ 284], 60.00th=[ 368], | 70.00th=[ 368], 80.00th=[ 384], 90.00th=[ 1020], 95.00th=[ 1020], | 99.00th=[ 1020], 99.50th=[ 1020], 99.90th=[ 1020], 99.95th=[ 1020], | 99.99th=[ 1020] bw ( KiB/s): min= 1450, max= 4031, per=34.05%, avg=2508.00, stdev=1351.87, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (usec) : 500=16.67% lat (msec) : 4=8.33%, 250=25.00%, 500=41.67%, 2000=8.33% cpu : usr=0.03%, sys=11.79%, ctx=135, majf=0, minf=13 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=5261KiB/s (5387kB/s), 553KiB/s-2239KiB/s (566kB/s-2292kB/s), io=20.0MiB (20.0MB), run=3202-3893msec WRITE: bw=7365KiB/s (7542kB/s), 1578KiB/s-2763KiB/s (1616kB/s-2829kB/s), io=28.0MiB (29.4MB), run=3202-3893msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144210: Mon Sep 7 11:49:07 2026 read: IOPS=2, BW=2277KiB/s (2332kB/s)(7168KiB/3148msec) clat (msec): min=87, max=450, avg=158.72, stdev=132.37 lat (msec): min=87, max=450, avg=158.72, stdev=132.37 clat percentiles (msec): | 1.00th=[ 88], 5.00th=[ 88], 10.00th=[ 88], 20.00th=[ 88], | 30.00th=[ 94], 40.00th=[ 94], 50.00th=[ 100], 60.00th=[ 118], | 70.00th=[ 118], 80.00th=[ 174], 90.00th=[ 451], 95.00th=[ 451], | 99.00th=[ 451], 99.50th=[ 451], 99.90th=[ 451], 99.95th=[ 451], | 99.99th=[ 451] bw ( KiB/s): min= 2003, max= 5785, per=89.37%, avg=3958.33, stdev=1894.28, samples=3 iops : min= 1, max= 5, avg= 3.00, stdev= 2.00, samples=3 write: IOPS=1, BW=1626KiB/s (1665kB/s)(5120KiB/3148msec); 0 zone resets clat (msec): min=176, max=688, avg=381.46, stdev=213.26 lat (msec): min=176, max=688, avg=381.56, stdev=213.26 clat percentiles (msec): | 1.00th=[ 178], 5.00th=[ 178], 10.00th=[ 178], 20.00th=[ 178], | 30.00th=[ 257], 40.00th=[ 257], 50.00th=[ 271], 60.00th=[ 271], | 70.00th=[ 514], 80.00th=[ 514], 90.00th=[ 693], 95.00th=[ 693], | 99.00th=[ 693], 99.50th=[ 693], 99.90th=[ 693], 99.95th=[ 693], | 99.99th=[ 693] bw ( KiB/s): min= 1976, max= 4007, per=40.58%, avg=2516.25, stdev=994.31, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (msec) : 100=33.33%, 250=25.00%, 500=25.00%, 750=16.67% cpu : usr=0.00%, sys=3.88%, ctx=53, majf=0, minf=13 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=144211: Mon Sep 7 11:49:07 2026 read: IOPS=0, BW=443KiB/s (454kB/s)(2048KiB/4624msec) clat (msec): min=108, max=432, avg=270.49, stdev=228.61 lat (msec): min=108, max=432, avg=270.49, stdev=228.60 clat percentiles (msec): | 1.00th=[ 109], 5.00th=[ 109], 10.00th=[ 109], 20.00th=[ 109], | 30.00th=[ 109], 40.00th=[ 109], 50.00th=[ 109], 60.00th=[ 435], | 70.00th=[ 435], 80.00th=[ 435], 90.00th=[ 435], 95.00th=[ 435], | 99.00th=[ 435], 99.50th=[ 435], 99.90th=[ 435], 99.95th=[ 435], | 99.99th=[ 435] bw ( KiB/s): min= 1838, max= 2039, per=43.77%, avg=1938.50, stdev=142.13, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2215KiB/s (2268kB/s)(10.0MiB/4624msec); 0 zone resets clat (msec): min=147, max=1402, avg=406.37, stdev=372.55 lat (msec): min=147, max=1403, avg=406.50, stdev=372.59 clat percentiles (msec): | 1.00th=[ 148], 5.00th=[ 148], 10.00th=[ 148], 20.00th=[ 199], | 30.00th=[ 209], 40.00th=[ 218], 50.00th=[ 249], 60.00th=[ 284], | 70.00th=[ 326], 80.00th=[ 489], 90.00th=[ 542], 95.00th=[ 1401], | 99.00th=[ 1401], 99.50th=[ 1401], 99.90th=[ 1401], 99.95th=[ 1401], | 99.99th=[ 1401] bw ( KiB/s): min= 1838, max= 3953, per=37.38%, avg=2317.83, stdev=804.77, samples=6 iops : min= 1, max= 3, avg= 1.33, stdev= 0.82, samples=6 lat (msec) : 250=50.00%, 500=33.33%, 750=8.33%, 2000=8.33% cpu : usr=0.02%, sys=3.98%, ctx=82, majf=0, minf=14 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=144212: Mon Sep 7 11:49:07 2026 read: IOPS=1, BW=1445KiB/s (1479kB/s)(6144KiB/4253msec) clat (msec): min=116, max=474, avg=220.87, stdev=131.19 lat (msec): min=116, max=474, avg=220.87, stdev=131.19 clat percentiles (msec): | 1.00th=[ 117], 5.00th=[ 117], 10.00th=[ 117], 20.00th=[ 150], | 30.00th=[ 150], 40.00th=[ 155], 50.00th=[ 155], 60.00th=[ 192], | 70.00th=[ 239], 80.00th=[ 239], 90.00th=[ 477], 95.00th=[ 477], | 99.00th=[ 477], 99.50th=[ 477], 99.90th=[ 477], 99.95th=[ 477], | 99.99th=[ 477] bw ( KiB/s): min= 1992, max= 2039, per=45.46%, avg=2013.60, stdev=17.71, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 write: IOPS=1, BW=1445KiB/s (1479kB/s)(6144KiB/4253msec); 0 zone resets clat (msec): min=168, max=1010, avg=469.15, stdev=329.94 lat (msec): min=169, max=1015, avg=469.97, stdev=331.33 clat percentiles (msec): | 1.00th=[ 169], 5.00th=[ 169], 10.00th=[ 169], 20.00th=[ 201], | 30.00th=[ 201], 40.00th=[ 253], 50.00th=[ 253], 60.00th=[ 510], | 70.00th=[ 667], 80.00th=[ 667], 90.00th=[ 1011], 95.00th=[ 1011], | 99.00th=[ 1011], 99.50th=[ 1011], 99.90th=[ 1011], 99.95th=[ 1011], | 99.99th=[ 1011] bw ( KiB/s): min= 1976, max= 3663, per=39.10%, avg=2424.25, stdev=826.25, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (msec) : 250=58.33%, 500=16.67%, 750=16.67%, 2000=8.33% cpu : usr=0.00%, sys=3.81%, ctx=76, majf=0, minf=12 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=144213: Mon Sep 7 11:49:07 2026 read: IOPS=1, BW=1426KiB/s (1460kB/s)(5120KiB/3590msec) clat (msec): min=64, max=355, avg=199.89, stdev=133.52 lat (msec): min=64, max=355, avg=199.89, stdev=133.52 clat percentiles (msec): | 1.00th=[ 65], 5.00th=[ 65], 10.00th=[ 65], 20.00th=[ 65], | 30.00th=[ 123], 40.00th=[ 123], 50.00th=[ 126], 60.00th=[ 126], | 70.00th=[ 334], 80.00th=[ 334], 90.00th=[ 355], 95.00th=[ 355], | 99.00th=[ 355], 99.50th=[ 355], 99.90th=[ 355], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 1992, max= 6011, per=90.35%, avg=4001.50, stdev=2841.86, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=1, BW=1997KiB/s (2045kB/s)(7168KiB/3590msec); 0 zone resets clat (msec): min=158, max=555, avg=356.24, stdev=140.10 lat (msec): min=159, max=555, avg=356.34, stdev=140.10 clat percentiles (msec): | 1.00th=[ 159], 5.00th=[ 159], 10.00th=[ 159], 20.00th=[ 239], | 30.00th=[ 317], 40.00th=[ 317], 50.00th=[ 321], 60.00th=[ 409], | 70.00th=[ 409], 80.00th=[ 498], 90.00th=[ 558], 95.00th=[ 558], | 99.00th=[ 558], 99.50th=[ 558], 99.90th=[ 558], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 1872, max= 2043, per=32.01%, avg=1984.40, stdev=69.24, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 100=8.33%, 250=33.33%, 500=50.00%, 750=8.33% cpu : usr=0.06%, sys=4.29%, ctx=90, majf=0, minf=13 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=4429KiB/s (4535kB/s), 443KiB/s-2277KiB/s (454kB/s-2332kB/s), io=20.0MiB (20.0MB), run=3148-4624msec WRITE: bw=6201KiB/s (6350kB/s), 1445KiB/s-2215KiB/s (1479kB/s-2268kB/s), io=28.0MiB (29.4MB), run=3148-4624msec 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-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 4096KiB-4096KiB, (W) 4096KiB-4096KiB, (T) 4096KiB-4096KiB, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=144226: Mon Sep 7 11:49:25 2026 read: IOPS=0, BW=3365KiB/s (3445kB/s)(12.0MiB/3652msec) clat (msec): min=174, max=1766, avg=1140.08, stdev=848.06 lat (msec): min=174, max=1766, avg=1140.08, stdev=848.06 clat percentiles (msec): | 1.00th=[ 176], 5.00th=[ 176], 10.00th=[ 176], 20.00th=[ 176], | 30.00th=[ 176], 40.00th=[ 1485], 50.00th=[ 1485], 60.00th=[ 1485], | 70.00th=[ 1770], 80.00th=[ 1770], 90.00th=[ 1770], 95.00th=[ 1770], | 99.00th=[ 1770], 99.50th=[ 1770], 99.90th=[ 1770], 99.95th=[ 1770], | 99.99th=[ 1770] bw ( KiB/s): min= 8143, max= 8143, per=100.00%, avg=8143.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 2000=66.67% cpu : usr=0.00%, sys=3.07%, ctx=34, majf=0, minf=7 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=144227: Mon Sep 7 11:49:25 2026 read: IOPS=0, BW=1256KiB/s (1286kB/s)(4096KiB/3261msec) clat (nsec): min=473575k, max=473575k, avg=473575009.00, stdev= 0.00 lat (nsec): min=473578k, max=473578k, avg=473578327.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 472], 5.00th=[ 472], 10.00th=[ 472], 20.00th=[ 472], | 30.00th=[ 472], 40.00th=[ 472], 50.00th=[ 472], 60.00th=[ 472], | 70.00th=[ 472], 80.00th=[ 472], 90.00th=[ 472], 95.00th=[ 472], | 99.00th=[ 472], 99.50th=[ 472], 99.90th=[ 472], 99.95th=[ 472], | 99.99th=[ 472] bw ( KiB/s): min= 8143, max= 8143, per=100.00%, avg=8143.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2512KiB/s (2572kB/s)(8192KiB/3261msec); 0 zone resets clat (msec): min=869, max=1817, avg=1343.63, stdev=670.20 lat (msec): min=870, max=1817, avg=1344.01, stdev=670.17 clat percentiles (msec): | 1.00th=[ 869], 5.00th=[ 869], 10.00th=[ 869], 20.00th=[ 869], | 30.00th=[ 869], 40.00th=[ 869], 50.00th=[ 869], 60.00th=[ 1821], | 70.00th=[ 1821], 80.00th=[ 1821], 90.00th=[ 1821], 95.00th=[ 1821], | 99.00th=[ 1821], 99.50th=[ 1821], 99.90th=[ 1821], 99.95th=[ 1821], | 99.99th=[ 1821] bw ( KiB/s): min= 8094, max= 8094, per=83.15%, avg=8094.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=3.10%, ctx=37, majf=0, minf=9 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=144228: Mon Sep 7 11:49:25 2026 write: IOPS=0, BW=3651KiB/s (3738kB/s)(12.0MiB/3366msec); 0 zone resets clat (msec): min=464, max=1445, avg=1070.87, stdev=530.25 lat (msec): min=464, max=1445, avg=1071.99, stdev=530.91 clat percentiles (msec): | 1.00th=[ 464], 5.00th=[ 464], 10.00th=[ 464], 20.00th=[ 464], | 30.00th=[ 464], 40.00th=[ 1301], 50.00th=[ 1301], 60.00th=[ 1301], | 70.00th=[ 1452], 80.00th=[ 1452], 90.00th=[ 1452], 95.00th=[ 1452], | 99.00th=[ 1452], 99.50th=[ 1452], 99.90th=[ 1452], 99.95th=[ 1452], | 99.99th=[ 1452] bw ( KiB/s): min= 8094, max= 8159, per=83.49%, avg=8126.50, stdev=45.96, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.00%, sys=4.10%, ctx=66, majf=0, minf=7 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=144229: Mon Sep 7 11:49:25 2026 write: IOPS=1, BW=4674KiB/s (4786kB/s)(12.0MiB/2629msec); 0 zone resets clat (msec): min=438, max=1191, avg=741.74, stdev=397.14 lat (msec): min=438, max=1193, avg=742.67, stdev=398.01 clat percentiles (msec): | 1.00th=[ 439], 5.00th=[ 439], 10.00th=[ 439], 20.00th=[ 439], | 30.00th=[ 439], 40.00th=[ 592], 50.00th=[ 592], 60.00th=[ 592], | 70.00th=[ 1200], 80.00th=[ 1200], 90.00th=[ 1200], 95.00th=[ 1200], | 99.00th=[ 1200], 99.50th=[ 1200], 99.90th=[ 1200], 99.95th=[ 1200], | 99.99th=[ 1200] bw ( KiB/s): min= 8062, max= 8094, per=82.99%, avg=8078.00, stdev=22.63, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.08%, sys=4.38%, ctx=63, majf=0, minf=8 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=4486KiB/s (4594kB/s), 1256KiB/s-3365KiB/s (1286kB/s-3445kB/s), io=16.0MiB (16.8MB), run=3261-3652msec WRITE: bw=9735KiB/s (9969kB/s), 2512KiB/s-4674KiB/s (2572kB/s-4786kB/s), io=32.0MiB (33.6MB), run=2629-3366msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144230: Mon Sep 7 11:49:26 2026 read: IOPS=0, BW=4007KiB/s (4103kB/s)(12.0MiB/3067msec) clat (msec): min=857, max=970, avg=929.23, stdev=62.09 lat (msec): min=857, max=970, avg=929.23, stdev=62.09 clat percentiles (msec): | 1.00th=[ 860], 5.00th=[ 860], 10.00th=[ 860], 20.00th=[ 860], | 30.00th=[ 860], 40.00th=[ 961], 50.00th=[ 961], 60.00th=[ 961], | 70.00th=[ 969], 80.00th=[ 969], 90.00th=[ 969], 95.00th=[ 969], | 99.00th=[ 969], 99.50th=[ 969], 99.90th=[ 969], 99.95th=[ 969], | 99.99th=[ 969] bw ( KiB/s): min= 8015, max= 8078, per=100.00%, avg=8046.50, stdev=44.55, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=100.00% cpu : usr=0.03%, sys=12.72%, ctx=215, majf=0, minf=9 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=144231: Mon Sep 7 11:49:26 2026 read: IOPS=0, BW=1113KiB/s (1139kB/s)(4096KiB/3681msec) clat (nsec): min=914582k, max=914582k, avg=914582300.00, stdev= 0.00 lat (nsec): min=914584k, max=914584k, avg=914584075.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 919], 5.00th=[ 919], 10.00th=[ 919], 20.00th=[ 919], | 30.00th=[ 919], 40.00th=[ 919], 50.00th=[ 919], 60.00th=[ 919], | 70.00th=[ 919], 80.00th=[ 919], 90.00th=[ 919], 95.00th=[ 919], | 99.00th=[ 919], 99.50th=[ 919], 99.90th=[ 919], 99.95th=[ 919], | 99.99th=[ 919] bw ( KiB/s): min= 8110, max= 8110, per=100.00%, avg=8110.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2225KiB/s (2279kB/s)(8192KiB/3681msec); 0 zone resets clat (msec): min=928, max=1645, avg=1286.62, stdev=507.14 lat (msec): min=928, max=1648, avg=1288.64, stdev=509.39 clat percentiles (msec): | 1.00th=[ 927], 5.00th=[ 927], 10.00th=[ 927], 20.00th=[ 927], | 30.00th=[ 927], 40.00th=[ 927], 50.00th=[ 927], 60.00th=[ 1653], | 70.00th=[ 1653], 80.00th=[ 1653], 90.00th=[ 1653], 95.00th=[ 1653], | 99.00th=[ 1653], 99.50th=[ 1653], 99.90th=[ 1653], 99.95th=[ 1653], | 99.99th=[ 1653] bw ( KiB/s): min= 8031, max= 8031, per=100.00%, avg=8031.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 1000=66.67%, 2000=33.33% cpu : usr=0.00%, sys=2.72%, ctx=55, majf=0, minf=11 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=144232: Mon Sep 7 11:49:26 2026 write: IOPS=0, BW=3001KiB/s (3074kB/s)(12.0MiB/4094msec); 0 zone resets clat (msec): min=311, max=1836, avg=1322.06, stdev=875.53 lat (msec): min=311, max=1842, avg=1324.29, stdev=877.10 clat percentiles (msec): | 1.00th=[ 313], 5.00th=[ 313], 10.00th=[ 313], 20.00th=[ 313], | 30.00th=[ 313], 40.00th=[ 1821], 50.00th=[ 1821], 60.00th=[ 1821], | 70.00th=[ 1838], 80.00th=[ 1838], 90.00th=[ 1838], 95.00th=[ 1838], | 99.00th=[ 1838], 99.50th=[ 1838], 99.90th=[ 1838], 99.95th=[ 1838], | 99.99th=[ 1838] bw ( KiB/s): min= 8031, max= 8031, per=100.00%, avg=8031.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.00%, sys=2.20%, ctx=44, majf=0, minf=9 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=144233: Mon Sep 7 11:49:26 2026 write: IOPS=1, BW=4563KiB/s (4672kB/s)(12.0MiB/2693msec); 0 zone resets clat (msec): min=377, max=1177, avg=853.41, stdev=420.75 lat (msec): min=378, max=1178, avg=853.81, stdev=420.78 clat percentiles (msec): | 1.00th=[ 380], 5.00th=[ 380], 10.00th=[ 380], 20.00th=[ 380], | 30.00th=[ 380], 40.00th=[ 1003], 50.00th=[ 1003], 60.00th=[ 1003], | 70.00th=[ 1183], 80.00th=[ 1183], 90.00th=[ 1183], 95.00th=[ 1183], | 99.00th=[ 1183], 99.50th=[ 1183], 99.90th=[ 1183], 99.95th=[ 1183], | 99.99th=[ 1183] bw ( KiB/s): min= 8047, max= 8159, per=100.00%, avg=8103.00, stdev=79.20, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.00%, sys=5.27%, ctx=68, majf=0, minf=10 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=4451KiB/s (4558kB/s), 1113KiB/s-4007KiB/s (1139kB/s-4103kB/s), io=16.0MiB (16.8MB), run=3067-3681msec WRITE: bw=8004KiB/s (8196kB/s), 2225KiB/s-4563KiB/s (2279kB/s-4672kB/s), io=32.0MiB (33.6MB), run=2693-4094msec