== sanity test 398b: DIO and buffer IO race ============== 21:31:35 (1786757495) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 6.7049 s, 7.5 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=179890: Fri Aug 14 21:34:27 2026 read: IOPS=9, BW=38.0KiB/s (39.9kB/s)(5992KiB/153819msec) clat (usec): min=44, max=414838, avg=55768.00, stdev=37489.62 lat (usec): min=45, max=414839, avg=55775.55, stdev=37489.16 clat percentiles (usec): | 1.00th=[ 61], 5.00th=[ 13829], 10.00th=[ 20317], 20.00th=[ 27919], | 30.00th=[ 34866], 40.00th=[ 41157], 50.00th=[ 47973], 60.00th=[ 54789], | 70.00th=[ 66847], 80.00th=[ 78119], 90.00th=[ 98042], 95.00th=[120062], | 99.00th=[196084], 99.50th=[217056], 99.90th=[287310], 99.95th=[413139], | 99.99th=[413139] bw ( KiB/s): min= 7, max= 87, per=24.82%, avg=38.73, stdev=16.74, samples=299 iops : min= 1, max= 21, avg= 9.01, stdev= 4.20, samples=299 write: IOPS=10, BW=40.9KiB/s (41.9kB/s)(6296KiB/153819msec); 0 zone resets clat (usec): min=1141, max=879952, avg=44367.04, stdev=51921.33 lat (usec): min=1143, max=879953, avg=44373.98, stdev=51921.23 clat percentiles (usec): | 1.00th=[ 1352], 5.00th=[ 1729], 10.00th=[ 3064], 20.00th=[ 5997], | 30.00th=[ 11994], 40.00th=[ 21365], 50.00th=[ 32375], 60.00th=[ 43254], | 70.00th=[ 55837], 80.00th=[ 72877], 90.00th=[100140], 95.00th=[127402], | 99.00th=[214959], 99.50th=[244319], 99.90th=[792724], 99.95th=[876610], | 99.99th=[876610] bw ( KiB/s): min= 7, max= 119, per=25.18%, avg=41.04, stdev=19.66, samples=297 iops : min= 1, max= 29, avg= 9.59, stdev= 4.95, samples=297 lat (usec) : 50=0.10%, 100=1.24%, 250=0.36%, 500=0.03% lat (msec) : 2=3.09%, 4=4.10%, 10=7.26%, 20=8.27%, 50=35.22% lat (msec) : 100=30.47%, 250=9.44%, 500=0.36%, 1000=0.07% cpu : usr=0.07%, sys=5.05%, ctx=6919, 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=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=179891: Fri Aug 14 21:34:27 2026 read: IOPS=9, BW=39.4KiB/s (40.3kB/s)(5940KiB/150823msec) clat (usec): min=39, max=850620, avg=55999.29, stdev=40958.86 lat (usec): min=40, max=850622, avg=56015.23, stdev=40975.72 clat percentiles (usec): | 1.00th=[ 65], 5.00th=[ 15270], 10.00th=[ 20579], 20.00th=[ 28705], | 30.00th=[ 34866], 40.00th=[ 41157], 50.00th=[ 48497], 60.00th=[ 55837], | 70.00th=[ 65274], 80.00th=[ 78119], 90.00th=[100140], 95.00th=[122160], | 99.00th=[179307], 99.50th=[210764], 99.90th=[287310], 99.95th=[851444], | 99.99th=[851444] bw ( KiB/s): min= 7, max= 95, per=25.03%, avg=39.05, stdev=17.37, samples=295 iops : min= 1, max= 23, avg= 9.09, stdev= 4.37, samples=295 write: IOPS=10, BW=42.1KiB/s (43.1kB/s)(6348KiB/150823msec); 0 zone resets clat (usec): min=1072, max=894945, avg=42263.25, stdev=48520.21 lat (usec): min=1073, max=894947, avg=42265.66, stdev=48520.08 clat percentiles (usec): | 1.00th=[ 1254], 5.00th=[ 1631], 10.00th=[ 2409], 20.00th=[ 5604], | 30.00th=[ 10814], 40.00th=[ 20055], 50.00th=[ 30540], 60.00th=[ 40109], | 70.00th=[ 53740], 80.00th=[ 70779], 90.00th=[ 94897], 95.00th=[127402], | 99.00th=[198181], 99.50th=[240124], 99.90th=[429917], 99.95th=[893387], | 99.99th=[893387] bw ( KiB/s): min= 7, max= 111, per=25.83%, avg=42.11, stdev=20.78, samples=293 iops : min= 1, max= 27, avg= 9.86, stdev= 5.23, samples=293 lat (usec) : 50=0.07%, 100=1.17%, 250=0.20%, 500=0.03%, 750=0.03% lat (msec) : 2=4.07%, 4=4.10%, 10=6.93%, 20=8.43%, 50=35.12% lat (msec) : 100=30.27%, 250=9.28%, 500=0.23%, 1000=0.07% cpu : usr=0.07%, sys=5.07%, ctx=6749, majf=0, minf=17 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=179892: Fri Aug 14 21:34:27 2026 read: IOPS=10, BW=40.0KiB/s (40.0kB/s)(6028KiB/150571msec) clat (usec): min=36, max=933691, avg=55426.00, stdev=42993.15 lat (usec): min=36, max=933692, avg=55429.36, stdev=42993.28 clat percentiles (usec): | 1.00th=[ 61], 5.00th=[ 12780], 10.00th=[ 18744], 20.00th=[ 26346], | 30.00th=[ 33817], 40.00th=[ 41157], 50.00th=[ 47973], 60.00th=[ 54789], | 70.00th=[ 64750], 80.00th=[ 78119], 90.00th=[ 99091], 95.00th=[126354], | 99.00th=[189793], 99.50th=[217056], 99.90th=[278922], 99.95th=[935330], | 99.99th=[935330] bw ( KiB/s): min= 7, max= 88, per=25.74%, avg=40.15, stdev=17.79, samples=291 iops : min= 1, max= 22, avg= 9.36, stdev= 4.50, samples=291 write: IOPS=10, BW=41.6KiB/s (42.6kB/s)(6260KiB/150571msec); 0 zone resets clat (usec): min=1163, max=915655, avg=42489.83, stdev=47433.68 lat (usec): min=1164, max=915657, avg=42494.43, stdev=47434.67 clat percentiles (usec): | 1.00th=[ 1270], 5.00th=[ 1565], 10.00th=[ 2278], 20.00th=[ 5276], | 30.00th=[ 9634], 40.00th=[ 19792], 50.00th=[ 30278], 60.00th=[ 41157], | 70.00th=[ 54789], 80.00th=[ 72877], 90.00th=[100140], 95.00th=[125305], | 99.00th=[189793], 99.50th=[208667], 99.90th=[235930], 99.95th=[918553], | 99.99th=[918553] bw ( KiB/s): min= 7, max= 110, per=25.59%, avg=41.71, stdev=19.29, samples=291 iops : min= 1, max= 27, avg= 9.76, stdev= 4.87, samples=291 lat (usec) : 50=0.07%, 100=1.56%, 250=0.23%, 500=0.07%, 750=0.07% lat (usec) : 1000=0.03% lat (msec) : 2=4.49%, 4=3.87%, 10=7.39%, 20=8.17%, 50=34.64% lat (msec) : 100=29.49%, 250=9.80%, 500=0.07%, 1000=0.07% cpu : usr=0.07%, sys=5.16%, ctx=6875, 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=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=179894: Fri Aug 14 21:34:27 2026 read: IOPS=9, BW=39.0KiB/s (40.9kB/s)(6052KiB/151346msec) clat (usec): min=42, max=894910, avg=56403.52, stdev=47109.41 lat (usec): min=42, max=894912, avg=56413.21, stdev=47108.07 clat percentiles (usec): | 1.00th=[ 60], 5.00th=[ 12518], 10.00th=[ 20055], 20.00th=[ 28705], | 30.00th=[ 34341], 40.00th=[ 40109], 50.00th=[ 47449], 60.00th=[ 55313], | 70.00th=[ 65799], 80.00th=[ 78119], 90.00th=[101188], 95.00th=[126354], | 99.00th=[175113], 99.50th=[225444], 99.90th=[884999], 99.95th=[893387], | 99.99th=[893387] bw ( KiB/s): min= 7, max= 95, per=25.56%, avg=39.88, stdev=18.01, samples=295 iops : min= 1, max= 23, avg= 9.29, stdev= 4.54, samples=295 write: IOPS=10, BW=41.2KiB/s (42.2kB/s)(6236KiB/151346msec); 0 zone resets clat (usec): min=1011, max=280792, avg=42013.62, stdev=43438.69 lat (usec): min=1013, max=280794, avg=42017.73, stdev=43439.11 clat percentiles (usec): | 1.00th=[ 1287], 5.00th=[ 1631], 10.00th=[ 2704], 20.00th=[ 5473], | 30.00th=[ 9896], 40.00th=[ 18744], 50.00th=[ 29230], 60.00th=[ 40109], | 70.00th=[ 52167], 80.00th=[ 71828], 90.00th=[103285], 95.00th=[131597], | 99.00th=[181404], 99.50th=[206570], 99.90th=[274727], 99.95th=[278922], | 99.99th=[278922] bw ( KiB/s): min= 7, max= 104, per=25.21%, avg=41.08, stdev=19.33, samples=295 iops : min= 1, max= 26, avg= 9.60, stdev= 4.88, samples=295 lat (usec) : 50=0.10%, 100=1.56%, 250=0.26%, 500=0.03%, 750=0.03% lat (usec) : 1000=0.03% lat (msec) : 2=3.71%, 4=3.87%, 10=7.91%, 20=8.30%, 50=34.73% lat (msec) : 100=28.97%, 250=10.29%, 500=0.13%, 1000=0.07% cpu : usr=0.09%, sys=5.01%, ctx=6934, 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=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=156KiB/s (160kB/s), 38.0KiB/s-40.0KiB/s (39.9kB/s-40.0kB/s), io=23.4MiB (24.6MB), run=150571-153819msec WRITE: bw=163KiB/s (167kB/s), 40.9KiB/s-42.1KiB/s (41.9kB/s-43.1kB/s), io=24.6MiB (25.7MB), run=150571-153819msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179888: Fri Aug 14 21:35:05 2026 read: IOPS=7, BW=31.3KiB/s (32.1kB/s)(5992KiB/191339msec) clat (msec): min=6, max=924, avg=50.44, stdev=56.46 lat (msec): min=6, max=924, avg=50.45, stdev=56.46 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 22], 40.00th=[ 26], 50.00th=[ 33], 60.00th=[ 41], | 70.00th=[ 53], 80.00th=[ 73], 90.00th=[ 116], 95.00th=[ 150], | 99.00th=[ 228], 99.50th=[ 251], 99.90th=[ 902], 99.95th=[ 927], | 99.99th=[ 927] bw ( KiB/s): min= 7, max= 126, per=26.03%, avg=32.54, stdev=25.12, samples=355 iops : min= 1, max= 31, avg= 7.46, stdev= 6.32, samples=355 write: IOPS=8, BW=32.9KiB/s (33.7kB/s)(6296KiB/191339msec); 0 zone resets clat (msec): min=8, max=540, avg=73.27, stdev=58.17 lat (msec): min=8, max=540, avg=73.27, stdev=58.16 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 22], 10.00th=[ 26], 20.00th=[ 31], | 30.00th=[ 36], 40.00th=[ 42], 50.00th=[ 51], 60.00th=[ 67], | 70.00th=[ 87], 80.00th=[ 110], 90.00th=[ 150], 95.00th=[ 188], | 99.00th=[ 271], 99.50th=[ 363], 99.90th=[ 426], 99.95th=[ 542], | 99.99th=[ 542] bw ( KiB/s): min= 7, max= 111, per=25.36%, avg=33.22, stdev=23.70, samples=366 iops : min= 1, max= 27, avg= 7.63, stdev= 5.97, samples=366 lat (msec) : 10=1.30%, 20=13.64%, 50=43.82%, 100=22.82%, 250=17.51% lat (msec) : 500=0.81%, 750=0.03%, 1000=0.07% cpu : usr=0.06%, sys=2.04%, ctx=5040, 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=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=179889: Fri Aug 14 21:35:05 2026 read: IOPS=7, BW=30.0KiB/s (31.7kB/s)(5940KiB/191792msec) clat (msec): min=6, max=948, avg=48.64, stdev=54.37 lat (msec): min=6, max=948, avg=48.65, stdev=54.37 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 25], 50.00th=[ 31], 60.00th=[ 38], | 70.00th=[ 50], 80.00th=[ 71], 90.00th=[ 105], 95.00th=[ 148], | 99.00th=[ 239], 99.50th=[ 271], 99.90th=[ 489], 99.95th=[ 953], | 99.99th=[ 953] bw ( KiB/s): min= 7, max= 143, per=25.22%, avg=31.52, stdev=25.08, samples=363 iops : min= 1, max= 35, avg= 7.20, stdev= 6.33, samples=363 write: IOPS=8, BW=33.1KiB/s (33.9kB/s)(6348KiB/191792msec); 0 zone resets clat (msec): min=11, max=948, avg=75.09, stdev=61.14 lat (msec): min=11, max=948, avg=75.09, stdev=61.14 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 22], 10.00th=[ 25], 20.00th=[ 31], | 30.00th=[ 36], 40.00th=[ 43], 50.00th=[ 55], 60.00th=[ 70], | 70.00th=[ 90], 80.00th=[ 115], 90.00th=[ 150], 95.00th=[ 188], | 99.00th=[ 268], 99.50th=[ 351], 99.90th=[ 489], 99.95th=[ 953], | 99.99th=[ 953] bw ( KiB/s): min= 7, max= 119, per=25.26%, avg=33.09, stdev=23.48, samples=369 iops : min= 1, max= 29, avg= 7.60, stdev= 5.91, samples=369 lat (msec) : 10=1.99%, 20=13.67%, 50=42.55%, 100=23.50%, 250=17.19% lat (msec) : 500=1.04%, 1000=0.07% cpu : usr=0.05%, sys=2.09%, ctx=5103, 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=179893: Fri Aug 14 21:35:05 2026 read: IOPS=7, BW=31.7KiB/s (32.4kB/s)(6028KiB/190320msec) clat (msec): min=6, max=456, avg=50.65, stdev=49.99 lat (msec): min=6, max=456, avg=50.66, stdev=49.99 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 22], 40.00th=[ 27], 50.00th=[ 33], 60.00th=[ 41], | 70.00th=[ 53], 80.00th=[ 78], 90.00th=[ 111], 95.00th=[ 155], | 99.00th=[ 236], 99.50th=[ 292], 99.90th=[ 456], 99.95th=[ 456], | 99.99th=[ 456] bw ( KiB/s): min= 7, max= 133, per=26.00%, avg=32.50, stdev=23.79, samples=358 iops : min= 1, max= 33, avg= 7.45, stdev= 6.00, samples=358 write: IOPS=8, BW=32.9KiB/s (33.7kB/s)(6260KiB/190320msec); 0 zone resets clat (msec): min=11, max=938, avg=72.58, stdev=63.34 lat (msec): min=11, max=938, avg=72.59, stdev=63.34 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 22], 10.00th=[ 25], 20.00th=[ 31], | 30.00th=[ 36], 40.00th=[ 42], 50.00th=[ 52], 60.00th=[ 65], | 70.00th=[ 86], 80.00th=[ 109], 90.00th=[ 146], 95.00th=[ 182], | 99.00th=[ 271], 99.50th=[ 347], 99.90th=[ 852], 99.95th=[ 936], | 99.99th=[ 936] bw ( KiB/s): min= 7, max= 111, per=25.66%, avg=33.62, stdev=23.34, samples=359 iops : min= 1, max= 27, avg= 7.73, stdev= 5.89, samples=359 lat (msec) : 10=1.37%, 20=13.31%, 50=44.04%, 100=23.27%, 250=16.96% lat (msec) : 500=0.94%, 750=0.03%, 1000=0.07% cpu : usr=0.06%, sys=2.04%, ctx=5078, 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=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=179895: Fri Aug 14 21:35:05 2026 read: IOPS=7, BW=31.6KiB/s (32.4kB/s)(6052KiB/191392msec) clat (msec): min=6, max=377, avg=49.00, stdev=46.95 lat (msec): min=6, max=377, avg=49.00, stdev=46.95 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 26], 50.00th=[ 31], 60.00th=[ 39], | 70.00th=[ 53], 80.00th=[ 73], 90.00th=[ 113], 95.00th=[ 153], | 99.00th=[ 222], 99.50th=[ 249], 99.90th=[ 305], 99.95th=[ 380], | 99.99th=[ 380] bw ( KiB/s): min= 7, max= 119, per=26.24%, avg=32.80, stdev=25.13, samples=358 iops : min= 1, max= 29, avg= 7.53, stdev= 6.34, samples=358 write: IOPS=8, BW=32.6KiB/s (33.4kB/s)(6236KiB/191392msec); 0 zone resets clat (msec): min=11, max=895, avg=74.91, stdev=66.61 lat (msec): min=11, max=895, avg=74.91, stdev=66.61 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 22], 10.00th=[ 25], 20.00th=[ 31], | 30.00th=[ 36], 40.00th=[ 42], 50.00th=[ 52], 60.00th=[ 68], | 70.00th=[ 86], 80.00th=[ 111], 90.00th=[ 157], 95.00th=[ 192], | 99.00th=[ 288], 99.50th=[ 376], 99.90th=[ 885], 99.95th=[ 894], | 99.99th=[ 894] bw ( KiB/s): min= 7, max= 110, per=24.89%, avg=32.61, stdev=23.77, samples=371 iops : min= 1, max= 27, avg= 7.48, stdev= 5.98, samples=371 lat (msec) : 10=1.66%, 20=13.64%, 50=43.00%, 100=23.44%, 250=17.19% lat (msec) : 500=0.98%, 750=0.03%, 1000=0.07% cpu : usr=0.06%, sys=2.02%, ctx=5062, 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=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=125KiB/s (128kB/s), 30.0KiB/s-31.7KiB/s (31.7kB/s-32.4kB/s), io=23.4MiB (24.6MB), run=190320-191792msec WRITE: bw=131KiB/s (134kB/s), 32.6KiB/s-33.1KiB/s (33.4kB/s-33.9kB/s), io=24.6MiB (25.7MB), run=190320-191792msec 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=179943: Fri Aug 14 21:35:51 2026 read: IOPS=10, BW=169KiB/s (173kB/s)(5920KiB/35050msec) clat (usec): min=35, max=239487, avg=50335.58, stdev=34017.69 lat (usec): min=36, max=239489, avg=50337.00, stdev=34017.71 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 74], 10.00th=[ 2376], 20.00th=[ 24249], | 30.00th=[ 30016], 40.00th=[ 40109], 50.00th=[ 45876], 60.00th=[ 54264], | 70.00th=[ 63701], 80.00th=[ 72877], 90.00th=[ 88605], 95.00th=[111674], | 99.00th=[154141], 99.50th=[214959], 99.90th=[240124], 99.95th=[240124], | 99.99th=[240124] bw ( KiB/s): min= 64, max= 316, per=24.87%, avg=166.13, stdev=58.90, samples=68 iops : min= 4, max= 19, avg= 9.60, stdev= 3.66, samples=68 write: IOPS=11, BW=182KiB/s (186kB/s)(6368KiB/35050msec); 0 zone resets clat (usec): min=1579, max=213725, avg=40513.05, stdev=36824.78 lat (usec): min=1581, max=213728, avg=40520.91, stdev=36824.52 clat percentiles (usec): | 1.00th=[ 1909], 5.00th=[ 3261], 10.00th=[ 4293], 20.00th=[ 8094], | 30.00th=[ 12518], 40.00th=[ 21627], 50.00th=[ 31065], 60.00th=[ 41157], | 70.00th=[ 54789], 80.00th=[ 66323], 90.00th=[ 90702], 95.00th=[113771], | 99.00th=[156238], 99.50th=[193987], 99.90th=[212861], 99.95th=[212861], | 99.99th=[212861] bw ( KiB/s): min= 31, max= 414, per=25.79%, avg=181.29, stdev=74.79, samples=68 iops : min= 1, max= 25, avg=10.56, stdev= 4.73, samples=68 lat (usec) : 50=0.39%, 100=3.26%, 250=0.78% lat (msec) : 2=1.04%, 4=3.65%, 10=8.33%, 20=9.11%, 50=33.85% lat (msec) : 100=32.42%, 250=7.16% cpu : usr=0.08%, sys=6.12%, ctx=1827, 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=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=179944: Fri Aug 14 21:35:51 2026 read: IOPS=10, BW=165KiB/s (169kB/s)(5744KiB/34811msec) clat (usec): min=58, max=339097, avg=51280.77, stdev=33828.21 lat (usec): min=59, max=339099, avg=51282.35, stdev=33828.25 clat percentiles (usec): | 1.00th=[ 64], 5.00th=[ 78], 10.00th=[ 18744], 20.00th=[ 25822], | 30.00th=[ 32113], 40.00th=[ 40633], 50.00th=[ 49021], 60.00th=[ 55313], | 70.00th=[ 63701], 80.00th=[ 71828], 90.00th=[ 90702], 95.00th=[108528], | 99.00th=[152044], 99.50th=[175113], 99.90th=[337642], 99.95th=[337642], | 99.99th=[337642] bw ( KiB/s): min= 31, max= 318, per=24.66%, avg=164.72, stdev=64.48, samples=68 iops : min= 1, max= 19, avg= 9.51, stdev= 4.07, samples=68 write: IOPS=11, BW=188KiB/s (192kB/s)(6544KiB/34811msec); 0 zone resets clat (usec): min=1606, max=171323, avg=39635.84, stdev=37185.77 lat (usec): min=1608, max=171325, avg=39647.60, stdev=37181.69 clat percentiles (usec): | 1.00th=[ 1844], 5.00th=[ 2835], 10.00th=[ 3916], 20.00th=[ 6390], | 30.00th=[ 11338], 40.00th=[ 20841], 50.00th=[ 28443], 60.00th=[ 38011], | 70.00th=[ 51119], 80.00th=[ 67634], 90.00th=[ 94897], 95.00th=[120062], | 99.00th=[154141], 99.50th=[158335], 99.90th=[170918], 99.95th=[170918], | 99.99th=[170918] bw ( KiB/s): min= 31, max= 447, per=26.70%, avg=187.68, stdev=93.87, samples=68 iops : min= 1, max= 27, avg=10.96, stdev= 5.85, samples=68 lat (usec) : 100=2.86%, 250=0.78% lat (msec) : 2=0.91%, 4=5.21%, 10=8.72%, 20=7.29%, 50=35.42% lat (msec) : 100=31.25%, 250=7.42%, 500=0.13% cpu : usr=0.08%, sys=6.06%, ctx=1798, 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=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=179945: Fri Aug 14 21:35:51 2026 read: IOPS=10, BW=175KiB/s (179kB/s)(6256KiB/35811msec) clat (usec): min=34, max=184607, avg=51188.52, stdev=31956.36 lat (usec): min=35, max=184609, avg=51190.09, stdev=31956.33 clat percentiles (usec): | 1.00th=[ 59], 5.00th=[ 79], 10.00th=[ 15664], 20.00th=[ 26608], | 30.00th=[ 34341], 40.00th=[ 38536], 50.00th=[ 45876], 60.00th=[ 53740], | 70.00th=[ 63701], 80.00th=[ 76022], 90.00th=[ 95945], 95.00th=[110625], | 99.00th=[133694], 99.50th=[149947], 99.90th=[185598], 99.95th=[185598], | 99.99th=[185598] bw ( KiB/s): min= 61, max= 446, per=26.16%, avg=174.74, stdev=74.01, samples=70 iops : min= 3, max= 27, avg=10.14, stdev= 4.65, samples=70 write: IOPS=10, BW=168KiB/s (172kB/s)(6032KiB/35811msec); 0 zone resets clat (usec): min=1826, max=192566, avg=40974.38, stdev=38756.71 lat (usec): min=1837, max=192569, avg=40987.41, stdev=38748.67 clat percentiles (usec): | 1.00th=[ 1942], 5.00th=[ 3163], 10.00th=[ 4817], 20.00th=[ 7767], | 30.00th=[ 12911], 40.00th=[ 20055], 50.00th=[ 29754], 60.00th=[ 39060], | 70.00th=[ 51643], 80.00th=[ 67634], 90.00th=[ 95945], 95.00th=[121111], | 99.00th=[162530], 99.50th=[179307], 99.90th=[191890], 99.95th=[191890], | 99.99th=[191890] bw ( KiB/s): min= 31, max= 443, per=23.82%, avg=167.42, stdev=68.81, samples=69 iops : min= 1, max= 27, avg= 9.68, stdev= 4.32, samples=69 lat (usec) : 50=0.13%, 100=3.78%, 250=0.39%, 500=0.13% lat (msec) : 2=0.65%, 4=3.12%, 10=8.46%, 20=8.98%, 50=36.33% lat (msec) : 100=29.30%, 250=8.72% cpu : usr=0.07%, sys=5.71%, ctx=1851, 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=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=179946: Fri Aug 14 21:35:51 2026 read: IOPS=11, BW=177KiB/s (182kB/s)(6032KiB/33985msec) clat (usec): min=44, max=211516, avg=47439.53, stdev=30652.84 lat (usec): min=44, max=211517, avg=47443.36, stdev=30651.52 clat percentiles (usec): | 1.00th=[ 56], 5.00th=[ 64], 10.00th=[ 100], 20.00th=[ 23987], | 30.00th=[ 31589], 40.00th=[ 38536], 50.00th=[ 45876], 60.00th=[ 50594], | 70.00th=[ 60556], 80.00th=[ 70779], 90.00th=[ 89654], 95.00th=[100140], | 99.00th=[121111], 99.50th=[154141], 99.90th=[210764], 99.95th=[210764], | 99.99th=[210764] bw ( KiB/s): min= 31, max= 381, per=26.35%, avg=175.98, stdev=65.80, samples=66 iops : min= 1, max= 23, avg=10.23, stdev= 4.11, samples=66 write: IOPS=11, BW=184KiB/s (188kB/s)(6256KiB/33985msec); 0 zone resets clat (usec): min=1526, max=216382, avg=40943.60, stdev=40009.58 lat (usec): min=1527, max=216384, avg=40946.38, stdev=40009.34 clat percentiles (usec): | 1.00th=[ 1909], 5.00th=[ 2933], 10.00th=[ 4047], 20.00th=[ 7242], | 30.00th=[ 10814], 40.00th=[ 19530], 50.00th=[ 28967], 60.00th=[ 38011], | 70.00th=[ 52691], 80.00th=[ 70779], 90.00th=[101188], 95.00th=[127402], | 99.00th=[168821], 99.50th=[189793], 99.90th=[217056], 99.95th=[217056], | 99.99th=[217056] bw ( KiB/s): min= 31, max= 416, per=26.09%, avg=183.38, stdev=71.20, samples=66 iops : min= 1, max= 26, avg=10.70, stdev= 4.53, samples=66 lat (usec) : 50=0.26%, 100=4.56%, 250=1.17%, 500=0.13%, 750=0.13% lat (msec) : 2=0.91%, 4=4.04%, 10=9.24%, 20=7.68%, 50=35.29% lat (msec) : 100=28.91%, 250=7.68% cpu : usr=0.09%, sys=6.23%, ctx=1829, 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=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=669KiB/s (685kB/s), 165KiB/s-177KiB/s (169kB/s-182kB/s), io=23.4MiB (24.5MB), run=33985-35811msec WRITE: bw=704KiB/s (721kB/s), 168KiB/s-188KiB/s (172kB/s-192kB/s), io=24.6MiB (25.8MB), run=33985-35811msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179947: Fri Aug 14 21:36:05 2026 read: IOPS=7, BW=121KiB/s (124kB/s)(5920KiB/48742msec) clat (msec): min=8, max=293, avg=51.31, stdev=38.54 lat (msec): min=8, max=293, avg=51.31, stdev=38.54 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 16], 10.00th=[ 19], 20.00th=[ 23], | 30.00th=[ 28], 40.00th=[ 34], 50.00th=[ 40], 60.00th=[ 46], | 70.00th=[ 55], 80.00th=[ 73], 90.00th=[ 106], 95.00th=[ 136], | 99.00th=[ 176], 99.50th=[ 213], 99.90th=[ 292], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 30, max= 381, per=24.75%, avg=120.79, stdev=71.60, samples=96 iops : min= 1, max= 23, avg= 6.75, stdev= 4.52, samples=96 write: IOPS=8, BW=131KiB/s (134kB/s)(6368KiB/48742msec); 0 zone resets clat (msec): min=17, max=379, avg=73.89, stdev=44.05 lat (msec): min=17, max=379, avg=73.89, stdev=44.05 clat percentiles (msec): | 1.00th=[ 21], 5.00th=[ 26], 10.00th=[ 30], 20.00th=[ 39], | 30.00th=[ 47], 40.00th=[ 56], 50.00th=[ 64], 60.00th=[ 73], | 70.00th=[ 89], 80.00th=[ 103], 90.00th=[ 130], 95.00th=[ 159], | 99.00th=[ 224], 99.50th=[ 241], 99.90th=[ 380], 99.95th=[ 380], | 99.99th=[ 380] bw ( KiB/s): min= 31, max= 315, per=25.87%, avg=132.73, stdev=64.11, samples=94 iops : min= 1, max= 19, avg= 7.51, stdev= 4.08, samples=94 lat (msec) : 10=0.39%, 20=6.25%, 50=42.97%, 100=33.72%, 250=16.41% lat (msec) : 500=0.26% cpu : usr=0.03%, sys=2.27%, ctx=1356, 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=179948: Fri Aug 14 21:36:05 2026 read: IOPS=7, BW=117KiB/s (120kB/s)(5744KiB/49012msec) clat (msec): min=8, max=227, avg=51.65, stdev=39.39 lat (msec): min=8, max=227, avg=51.65, stdev=39.39 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 15], 10.00th=[ 18], 20.00th=[ 22], | 30.00th=[ 28], 40.00th=[ 34], 50.00th=[ 40], 60.00th=[ 46], | 70.00th=[ 58], 80.00th=[ 74], 90.00th=[ 104], 95.00th=[ 142], | 99.00th=[ 192], 99.50th=[ 207], 99.90th=[ 228], 99.95th=[ 228], | 99.99th=[ 228] bw ( KiB/s): min= 29, max= 381, per=24.26%, avg=118.38, stdev=73.49, samples=94 iops : min= 1, max= 23, avg= 6.60, stdev= 4.68, samples=94 write: IOPS=8, BW=134KiB/s (137kB/s)(6544KiB/49012msec); 0 zone resets clat (msec): min=17, max=269, avg=74.21, stdev=42.43 lat (msec): min=17, max=269, avg=74.21, stdev=42.43 clat percentiles (msec): | 1.00th=[ 23], 5.00th=[ 29], 10.00th=[ 32], 20.00th=[ 39], | 30.00th=[ 45], 40.00th=[ 53], 50.00th=[ 65], 60.00th=[ 77], | 70.00th=[ 90], 80.00th=[ 105], 90.00th=[ 129], 95.00th=[ 153], | 99.00th=[ 209], 99.50th=[ 253], 99.90th=[ 271], 99.95th=[ 271], | 99.99th=[ 271] bw ( KiB/s): min= 31, max= 349, per=25.77%, avg=132.19, stdev=62.79, samples=96 iops : min= 1, max= 21, avg= 7.48, stdev= 3.94, samples=96 lat (msec) : 10=0.26%, 20=7.03%, 50=42.19%, 100=33.98%, 250=16.15% lat (msec) : 500=0.39% cpu : usr=0.03%, sys=2.28%, ctx=1337, 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=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=179949: Fri Aug 14 21:36:05 2026 read: IOPS=8, BW=129KiB/s (133kB/s)(6256KiB/48337msec) clat (msec): min=7, max=288, avg=51.95, stdev=40.17 lat (msec): min=7, max=288, avg=51.95, stdev=40.17 clat percentiles (msec): | 1.00th=[ 12], 5.00th=[ 16], 10.00th=[ 18], 20.00th=[ 24], | 30.00th=[ 29], 40.00th=[ 34], 50.00th=[ 40], 60.00th=[ 48], | 70.00th=[ 56], 80.00th=[ 71], 90.00th=[ 106], 95.00th=[ 138], | 99.00th=[ 203], 99.50th=[ 220], 99.90th=[ 288], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 30, max= 381, per=26.83%, avg=130.91, stdev=77.52, samples=94 iops : min= 1, max= 23, avg= 7.38, stdev= 4.93, samples=94 write: IOPS=7, BW=125KiB/s (128kB/s)(6032KiB/48337msec); 0 zone resets clat (msec): min=14, max=507, avg=73.42, stdev=46.95 lat (msec): min=14, max=507, avg=73.42, stdev=46.95 clat percentiles (msec): | 1.00th=[ 21], 5.00th=[ 26], 10.00th=[ 31], 20.00th=[ 37], | 30.00th=[ 46], 40.00th=[ 55], 50.00th=[ 63], 60.00th=[ 73], | 70.00th=[ 87], 80.00th=[ 102], 90.00th=[ 128], 95.00th=[ 153], | 99.00th=[ 241], 99.50th=[ 266], 99.90th=[ 510], 99.95th=[ 510], | 99.99th=[ 510] bw ( KiB/s): min= 31, max= 318, per=24.39%, avg=125.13, stdev=64.20, samples=94 iops : min= 1, max= 19, avg= 7.02, stdev= 4.03, samples=94 lat (msec) : 10=0.26%, 20=7.29%, 50=42.19%, 100=34.77%, 250=14.97% lat (msec) : 500=0.39%, 750=0.13% cpu : usr=0.06%, sys=2.34%, ctx=1306, 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=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=179950: Fri Aug 14 21:36:05 2026 read: IOPS=7, BW=123KiB/s (126kB/s)(6032KiB/49043msec) clat (msec): min=9, max=209, avg=54.25, stdev=40.29 lat (msec): min=9, max=209, avg=54.26, stdev=40.29 clat percentiles (msec): | 1.00th=[ 12], 5.00th=[ 16], 10.00th=[ 19], 20.00th=[ 23], | 30.00th=[ 29], 40.00th=[ 35], 50.00th=[ 42], 60.00th=[ 50], | 70.00th=[ 62], 80.00th=[ 80], 90.00th=[ 112], 95.00th=[ 142], | 99.00th=[ 199], 99.50th=[ 207], 99.90th=[ 209], 99.95th=[ 209], | 99.99th=[ 209] bw ( KiB/s): min= 31, max= 318, per=25.63%, avg=125.05, stdev=67.26, samples=93 iops : min= 1, max= 19, avg= 7.01, stdev= 4.26, samples=93 write: IOPS=7, BW=128KiB/s (131kB/s)(6256KiB/49043msec); 0 zone resets clat (msec): min=13, max=386, avg=72.05, stdev=46.56 lat (msec): min=13, max=386, avg=72.06, stdev=46.56 clat percentiles (msec): | 1.00th=[ 22], 5.00th=[ 26], 10.00th=[ 30], 20.00th=[ 36], | 30.00th=[ 42], 40.00th=[ 50], 50.00th=[ 58], 60.00th=[ 70], | 70.00th=[ 84], 80.00th=[ 101], 90.00th=[ 136], 95.00th=[ 163], | 99.00th=[ 224], 99.50th=[ 279], 99.90th=[ 388], 99.95th=[ 388], | 99.99th=[ 388] bw ( KiB/s): min= 31, max= 444, per=24.97%, avg=128.08, stdev=76.40, samples=95 iops : min= 1, max= 27, avg= 7.21, stdev= 4.85, samples=95 lat (msec) : 10=0.13%, 20=7.55%, 50=42.84%, 100=32.55%, 250=16.67% lat (msec) : 500=0.26% cpu : usr=0.05%, sys=2.34%, ctx=1342, 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=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=488KiB/s (500kB/s), 117KiB/s-129KiB/s (120kB/s-133kB/s), io=23.4MiB (24.5MB), run=48337-49043msec WRITE: bw=514KiB/s (526kB/s), 125KiB/s-134KiB/s (128kB/s-137kB/s), io=24.6MiB (25.8MB), run=48337-49043msec 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=179968: Fri Aug 14 21:36:24 2026 read: IOPS=1, BW=1156KiB/s (1184kB/s)(7168KiB/6200msec) clat (msec): min=3, max=2429, avg=586.00, stdev=826.59 lat (msec): min=3, max=2429, avg=586.00, stdev=826.59 clat percentiles (msec): | 1.00th=[ 4], 5.00th=[ 4], 10.00th=[ 4], 20.00th=[ 215], | 30.00th=[ 288], 40.00th=[ 288], 50.00th=[ 326], 60.00th=[ 342], | 70.00th=[ 342], 80.00th=[ 502], 90.00th=[ 2433], 95.00th=[ 2433], | 99.00th=[ 2433], 99.50th=[ 2433], 99.90th=[ 2433], 99.95th=[ 2433], | 99.99th=[ 2433] bw ( KiB/s): min= 1729, max= 4087, per=82.01%, avg=2363.60, stdev=970.69, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 write: IOPS=0, BW=826KiB/s (846kB/s)(5120KiB/6200msec); 0 zone resets clat (msec): min=248, max=600, avg=418.76, stdev=147.43 lat (msec): min=248, max=600, avg=418.94, stdev=147.53 clat percentiles (msec): | 1.00th=[ 249], 5.00th=[ 249], 10.00th=[ 249], 20.00th=[ 249], | 30.00th=[ 296], 40.00th=[ 296], 50.00th=[ 435], 60.00th=[ 435], | 70.00th=[ 514], 80.00th=[ 514], 90.00th=[ 600], 95.00th=[ 600], | 99.00th=[ 600], 99.50th=[ 600], 99.90th=[ 600], 99.95th=[ 600], | 99.99th=[ 600] bw ( KiB/s): min= 2007, max= 4079, per=66.84%, avg=2697.67, stdev=1196.27, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 4=8.33%, 250=16.67%, 500=41.67%, 750=25.00%, >=2000=8.33% cpu : usr=0.03%, sys=10.02%, ctx=526, 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=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=179969: Fri Aug 14 21:36:24 2026 read: IOPS=0, BW=288KiB/s (295kB/s)(2048KiB/7104msec) clat (msec): min=477, max=583, avg=530.54, stdev=75.49 lat (msec): min=477, max=583, avg=530.54, stdev=75.48 clat percentiles (msec): | 1.00th=[ 477], 5.00th=[ 477], 10.00th=[ 477], 20.00th=[ 477], | 30.00th=[ 477], 40.00th=[ 477], 50.00th=[ 477], 60.00th=[ 584], | 70.00th=[ 584], 80.00th=[ 584], 90.00th=[ 584], 95.00th=[ 584], | 99.00th=[ 584], 99.50th=[ 584], 99.90th=[ 584], 99.95th=[ 584], | 99.99th=[ 584] bw ( KiB/s): min= 2007, max= 2043, per=70.26%, avg=2025.00, stdev=25.46, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1441KiB/s (1476kB/s)(10.0MiB/7104msec); 0 zone resets clat (msec): min=113, max=2227, avg=604.10, stdev=633.16 lat (msec): min=113, max=2227, avg=604.20, stdev=633.15 clat percentiles (msec): | 1.00th=[ 114], 5.00th=[ 114], 10.00th=[ 114], 20.00th=[ 184], | 30.00th=[ 288], 40.00th=[ 292], 50.00th=[ 388], 60.00th=[ 393], | 70.00th=[ 422], 80.00th=[ 651], 90.00th=[ 1083], 95.00th=[ 2232], | 99.00th=[ 2232], 99.50th=[ 2232], 99.90th=[ 2232], 99.95th=[ 2232], | 99.99th=[ 2232] bw ( KiB/s): min= 1976, max= 6071, per=66.73%, avg=2693.17, stdev=1654.97, samples=6 iops : min= 1, max= 5, avg= 1.67, stdev= 1.63, samples=6 lat (msec) : 250=16.67%, 500=50.00%, 750=16.67%, 2000=8.33%, >=2000=8.33% cpu : usr=0.00%, sys=11.14%, ctx=162, 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=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=179970: Fri Aug 14 21:36:24 2026 read: IOPS=0, BW=928KiB/s (951kB/s)(6144KiB/6618msec) clat (usec): min=835, max=329360, avg=184019.16, stdev=147045.15 lat (usec): min=837, max=329361, avg=184020.46, stdev=147045.20 clat percentiles (usec): | 1.00th=[ 832], 5.00th=[ 832], 10.00th=[ 832], 20.00th=[ 3851], | 30.00th=[ 3851], 40.00th=[219153], 50.00th=[219153], 60.00th=[235930], | 70.00th=[312476], 80.00th=[312476], 90.00th=[329253], 95.00th=[329253], | 99.00th=[329253], 99.50th=[329253], 99.90th=[329253], 99.95th=[329253], | 99.99th=[329253] bw ( KiB/s): min= 1729, max= 4087, per=85.69%, avg=2469.50, stdev=1087.71, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=0, BW=928KiB/s (951kB/s)(6144KiB/6618msec); 0 zone resets clat (msec): min=196, max=3219, avg=918.08, stdev=1141.40 lat (msec): min=196, max=3219, avg=918.22, stdev=1141.38 clat percentiles (msec): | 1.00th=[ 197], 5.00th=[ 197], 10.00th=[ 197], 20.00th=[ 296], | 30.00th=[ 296], 40.00th=[ 567], 50.00th=[ 567], 60.00th=[ 584], | 70.00th=[ 651], 80.00th=[ 651], 90.00th=[ 3205], 95.00th=[ 3205], | 99.00th=[ 3205], 99.50th=[ 3205], 99.90th=[ 3205], 99.95th=[ 3205], | 99.99th=[ 3205] bw ( KiB/s): min= 2007, max= 3599, per=59.91%, avg=2418.00, stdev=787.47, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (usec) : 1000=8.33% lat (msec) : 4=8.33%, 250=25.00%, 500=25.00%, 750=25.00%, >=2000=8.33% cpu : usr=0.02%, sys=8.61%, ctx=231, 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=179971: Fri Aug 14 21:36:24 2026 read: IOPS=0, BW=789KiB/s (808kB/s)(5120KiB/6488msec) clat (usec): min=815, max=367817, avg=200977.32, stdev=183427.45 lat (usec): min=817, max=367819, avg=200978.57, stdev=183427.42 clat percentiles (usec): | 1.00th=[ 816], 5.00th=[ 816], 10.00th=[ 816], 20.00th=[ 816], | 30.00th=[ 2073], 40.00th=[ 2073], 50.00th=[308282], 60.00th=[308282], | 70.00th=[325059], 80.00th=[325059], 90.00th=[367002], 95.00th=[367002], | 99.00th=[367002], 99.50th=[367002], 99.90th=[367002], 99.95th=[367002], | 99.99th=[367002] bw ( KiB/s): min= 8031, max= 8031, per=100.00%, avg=8031.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=1, BW=1105KiB/s (1131kB/s)(7168KiB/6488msec); 0 zone resets clat (msec): min=227, max=3726, avg=782.76, stdev=1300.12 lat (msec): min=227, max=3726, avg=782.86, stdev=1300.17 clat percentiles (msec): | 1.00th=[ 228], 5.00th=[ 228], 10.00th=[ 228], 20.00th=[ 239], | 30.00th=[ 255], 40.00th=[ 255], 50.00th=[ 284], 60.00th=[ 296], | 70.00th=[ 296], 80.00th=[ 456], 90.00th=[ 3742], 95.00th=[ 3742], | 99.00th=[ 3742], 99.50th=[ 3742], 99.90th=[ 3742], 99.95th=[ 3742], | 99.99th=[ 3742] bw ( KiB/s): min= 1969, max= 4047, per=71.32%, avg=2878.50, stdev=1038.32, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 lat (usec) : 1000=8.33% lat (msec) : 4=8.33%, 250=16.67%, 500=58.33%, >=2000=8.33% cpu : usr=0.00%, sys=7.99%, ctx=165, 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=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=2883KiB/s (2952kB/s), 288KiB/s-1156KiB/s (295kB/s-1184kB/s), io=20.0MiB (20.0MB), run=6200-7104msec WRITE: bw=4036KiB/s (4133kB/s), 826KiB/s-1441KiB/s (846kB/s-1476kB/s), io=28.0MiB (29.4MB), run=6200-7104msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179963: Fri Aug 14 21:36:24 2026 read: IOPS=1, BW=1233KiB/s (1262kB/s)(7168KiB/5815msec) clat (msec): min=76, max=704, avg=267.35, stdev=218.79 lat (msec): min=76, max=704, avg=267.36, stdev=218.79 clat percentiles (msec): | 1.00th=[ 78], 5.00th=[ 78], 10.00th=[ 78], 20.00th=[ 106], | 30.00th=[ 159], 40.00th=[ 159], 50.00th=[ 159], 60.00th=[ 321], | 70.00th=[ 321], 80.00th=[ 351], 90.00th=[ 709], 95.00th=[ 709], | 99.00th=[ 709], 99.50th=[ 709], 99.90th=[ 709], 99.95th=[ 709], | 99.99th=[ 709] bw ( KiB/s): min= 2007, max= 5720, per=100.00%, avg=3254.00, stdev=2135.66, samples=3 iops : min= 1, max= 5, avg= 2.33, stdev= 2.31, samples=3 write: IOPS=0, BW=880KiB/s (902kB/s)(5120KiB/5815msec); 0 zone resets clat (msec): min=115, max=2375, avg=778.03, stdev=934.67 lat (msec): min=115, max=2375, avg=778.13, stdev=934.65 clat percentiles (msec): | 1.00th=[ 115], 5.00th=[ 115], 10.00th=[ 115], 20.00th=[ 115], | 30.00th=[ 239], 40.00th=[ 239], 50.00th=[ 321], 60.00th=[ 321], | 70.00th=[ 835], 80.00th=[ 835], 90.00th=[ 2366], 95.00th=[ 2366], | 99.00th=[ 2366], 99.50th=[ 2366], 99.90th=[ 2366], 99.95th=[ 2366], | 99.99th=[ 2366] bw ( KiB/s): min= 1430, max= 2043, per=49.62%, avg=1907.80, stdev=267.73, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 100=8.33%, 250=41.67%, 500=25.00%, 750=8.33%, 1000=8.33% lat (msec) : >=2000=8.33% cpu : usr=0.02%, sys=3.16%, ctx=76, 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=179964: Fri Aug 14 21:36:24 2026 read: IOPS=0, BW=275KiB/s (281kB/s)(2048KiB/7456msec) clat (msec): min=109, max=527, avg=318.89, stdev=295.66 lat (msec): min=109, max=527, avg=318.89, stdev=295.65 clat percentiles (msec): | 1.00th=[ 110], 5.00th=[ 110], 10.00th=[ 110], 20.00th=[ 110], | 30.00th=[ 110], 40.00th=[ 110], 50.00th=[ 110], 60.00th=[ 527], | 70.00th=[ 527], 80.00th=[ 527], 90.00th=[ 527], 95.00th=[ 527], | 99.00th=[ 527], 99.50th=[ 527], 99.90th=[ 527], 99.95th=[ 527], | 99.99th=[ 527] bw ( KiB/s): min= 1530, max= 2043, per=65.06%, avg=1786.50, stdev=362.75, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1373KiB/s (1406kB/s)(10.0MiB/7456msec); 0 zone resets clat (msec): min=120, max=2618, avg=669.25, stdev=825.79 lat (msec): min=121, max=2618, avg=669.50, stdev=825.70 clat percentiles (msec): | 1.00th=[ 122], 5.00th=[ 122], 10.00th=[ 122], 20.00th=[ 140], | 30.00th=[ 148], 40.00th=[ 213], 50.00th=[ 224], 60.00th=[ 384], | 70.00th=[ 510], 80.00th=[ 676], 90.00th=[ 1653], 95.00th=[ 2635], | 99.00th=[ 2635], 99.50th=[ 2635], 99.90th=[ 2635], 99.95th=[ 2635], | 99.99th=[ 2635] bw ( KiB/s): min= 1996, max= 3061, per=56.46%, avg=2170.86, stdev=392.83, samples=7 iops : min= 1, max= 2, avg= 1.14, stdev= 0.38, samples=7 lat (msec) : 250=50.00%, 500=8.33%, 750=25.00%, 2000=8.33%, >=2000=8.33% cpu : usr=0.01%, sys=3.21%, ctx=92, 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=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=179965: Fri Aug 14 21:36:24 2026 read: IOPS=0, BW=990KiB/s (1013kB/s)(6144KiB/6208msec) clat (msec): min=87, max=724, avg=300.12, stdev=265.89 lat (msec): min=87, max=724, avg=300.13, stdev=265.89 clat percentiles (msec): | 1.00th=[ 88], 5.00th=[ 88], 10.00th=[ 88], 20.00th=[ 113], | 30.00th=[ 113], 40.00th=[ 155], 50.00th=[ 155], 60.00th=[ 182], | 70.00th=[ 542], 80.00th=[ 542], 90.00th=[ 726], 95.00th=[ 726], | 99.00th=[ 726], 99.50th=[ 726], 99.90th=[ 726], 99.95th=[ 726], | 99.99th=[ 726] bw ( KiB/s): min= 2035, max= 4071, per=100.00%, avg=3366.00, stdev=1153.36, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=0, BW=990KiB/s (1013kB/s)(6144KiB/6208msec); 0 zone resets clat (msec): min=178, max=2662, avg=714.21, stdev=966.26 lat (msec): min=178, max=2662, avg=714.48, stdev=966.21 clat percentiles (msec): | 1.00th=[ 180], 5.00th=[ 180], 10.00th=[ 180], 20.00th=[ 199], | 30.00th=[ 199], 40.00th=[ 309], 50.00th=[ 309], 60.00th=[ 338], | 70.00th=[ 600], 80.00th=[ 600], 90.00th=[ 2668], 95.00th=[ 2668], | 99.00th=[ 2668], 99.50th=[ 2668], 99.90th=[ 2668], 99.95th=[ 2668], | 99.99th=[ 2668] bw ( KiB/s): min= 1996, max= 3034, per=57.94%, avg=2227.80, stdev=451.04, samples=5 iops : min= 1, max= 2, avg= 1.20, stdev= 0.45, samples=5 lat (msec) : 100=8.33%, 250=41.67%, 500=16.67%, 750=25.00%, >=2000=8.33% cpu : usr=0.00%, sys=3.01%, ctx=90, 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=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=179966: Fri Aug 14 21:36:24 2026 read: IOPS=0, BW=781KiB/s (800kB/s)(5120KiB/6552msec) clat (msec): min=157, max=904, avg=392.32, stdev=313.25 lat (msec): min=157, max=904, avg=392.33, stdev=313.25 clat percentiles (msec): | 1.00th=[ 159], 5.00th=[ 159], 10.00th=[ 159], 20.00th=[ 159], | 30.00th=[ 178], 40.00th=[ 178], 50.00th=[ 245], 60.00th=[ 245], | 70.00th=[ 477], 80.00th=[ 477], 90.00th=[ 902], 95.00th=[ 902], | 99.00th=[ 902], 99.50th=[ 902], 99.90th=[ 902], 99.95th=[ 902], | 99.99th=[ 902] bw ( KiB/s): min= 1996, max= 4071, per=98.45%, avg=2703.33, stdev=1184.67, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=1, BW=1094KiB/s (1120kB/s)(7168KiB/6552msec); 0 zone resets clat (msec): min=169, max=2235, avg=643.27, stdev=730.51 lat (msec): min=169, max=2235, avg=643.43, stdev=730.50 clat percentiles (msec): | 1.00th=[ 169], 5.00th=[ 169], 10.00th=[ 169], 20.00th=[ 176], | 30.00th=[ 203], 40.00th=[ 203], 50.00th=[ 477], 60.00th=[ 617], | 70.00th=[ 617], 80.00th=[ 625], 90.00th=[ 2232], 95.00th=[ 2232], | 99.00th=[ 2232], 99.50th=[ 2232], 99.90th=[ 2232], 99.95th=[ 2232], | 99.99th=[ 2232] bw ( KiB/s): min= 2007, max= 3079, per=58.27%, avg=2240.60, stdev=468.91, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (msec) : 250=50.00%, 500=16.67%, 750=16.67%, 1000=8.33%, >=2000=8.33% cpu : usr=0.02%, sys=3.16%, ctx=76, 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=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=2747KiB/s (2813kB/s), 275KiB/s-1233KiB/s (281kB/s-1262kB/s), io=20.0MiB (20.0MB), run=5815-7456msec WRITE: bw=3845KiB/s (3938kB/s), 880KiB/s-1373KiB/s (902kB/s-1406kB/s), io=28.0MiB (29.4MB), run=5815-7456msec 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=179977: Fri Aug 14 21:36:37 2026 read: IOPS=1, BW=5838KiB/s (5978kB/s)(12.0MiB/2105msec) clat (msec): min=312, max=772, avg=599.52, stdev=250.40 lat (msec): min=312, max=772, avg=599.52, stdev=250.40 clat percentiles (msec): | 1.00th=[ 313], 5.00th=[ 313], 10.00th=[ 313], 20.00th=[ 313], | 30.00th=[ 313], 40.00th=[ 718], 50.00th=[ 718], 60.00th=[ 718], | 70.00th=[ 776], 80.00th=[ 776], 90.00th=[ 776], 95.00th=[ 776], | 99.00th=[ 776], 99.50th=[ 776], 99.90th=[ 776], 99.95th=[ 776], | 99.99th=[ 776] bw ( KiB/s): min= 6420, max= 8126, per=100.00%, avg=7273.00, stdev=1206.32, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 750=33.33%, 1000=33.33% cpu : usr=0.00%, sys=5.23%, ctx=56, 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=179978: Fri Aug 14 21:36:37 2026 read: IOPS=0, BW=1497KiB/s (1533kB/s)(4096KiB/2736msec) clat (nsec): min=642127k, max=642127k, avg=642126556.00, stdev= 0.00 lat (nsec): min=642129k, max=642129k, avg=642128919.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 642], 5.00th=[ 642], 10.00th=[ 642], 20.00th=[ 642], | 30.00th=[ 642], 40.00th=[ 642], 50.00th=[ 642], 60.00th=[ 642], | 70.00th=[ 642], 80.00th=[ 642], 90.00th=[ 642], 95.00th=[ 642], | 99.00th=[ 642], 99.50th=[ 642], 99.90th=[ 642], 99.95th=[ 642], | 99.99th=[ 642] 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=2994KiB/s (3066kB/s)(8192KiB/2736msec); 0 zone resets clat (msec): min=911, max=963, avg=937.29, stdev=36.97 lat (msec): min=911, max=963, avg=937.64, stdev=36.93 clat percentiles (msec): | 1.00th=[ 911], 5.00th=[ 911], 10.00th=[ 911], 20.00th=[ 911], | 30.00th=[ 911], 40.00th=[ 911], 50.00th=[ 911], 60.00th=[ 961], | 70.00th=[ 961], 80.00th=[ 961], 90.00th=[ 961], 95.00th=[ 961], | 99.00th=[ 961], 99.50th=[ 961], 99.90th=[ 961], 99.95th=[ 961], | 99.99th=[ 961] bw ( KiB/s): min= 8175, max= 8175, per=97.55%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=33.33%, 1000=66.67% cpu : usr=0.00%, sys=3.80%, ctx=71, 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=179979: Fri Aug 14 21:36:37 2026 write: IOPS=0, BW=3143KiB/s (3218kB/s)(12.0MiB/3910msec); 0 zone resets clat (msec): min=267, max=1624, avg=1167.29, stdev=779.20 lat (msec): min=267, max=1625, avg=1167.62, stdev=779.21 clat percentiles (msec): | 1.00th=[ 268], 5.00th=[ 268], 10.00th=[ 268], 20.00th=[ 268], | 30.00th=[ 268], 40.00th=[ 1603], 50.00th=[ 1603], 60.00th=[ 1603], | 70.00th=[ 1620], 80.00th=[ 1620], 90.00th=[ 1620], 95.00th=[ 1620], | 99.00th=[ 1620], 99.50th=[ 1620], 99.90th=[ 1620], 99.95th=[ 1620], | 99.99th=[ 1620] bw ( KiB/s): min= 8143, max= 8175, per=97.36%, avg=8159.00, stdev=22.63, 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=3.10%, ctx=57, 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=179981: Fri Aug 14 21:36:37 2026 write: IOPS=1, BW=4422KiB/s (4528kB/s)(12.0MiB/2779msec); 0 zone resets clat (msec): min=400, max=1114, avg=850.94, stdev=392.26 lat (msec): min=400, max=1115, avg=851.27, stdev=392.24 clat percentiles (msec): | 1.00th=[ 401], 5.00th=[ 401], 10.00th=[ 401], 20.00th=[ 401], | 30.00th=[ 401], 40.00th=[ 1036], 50.00th=[ 1036], 60.00th=[ 1036], | 70.00th=[ 1116], 80.00th=[ 1116], 90.00th=[ 1116], 95.00th=[ 1116], | 99.00th=[ 1116], 99.50th=[ 1116], 99.90th=[ 1116], 99.95th=[ 1116], | 99.99th=[ 1116] bw ( KiB/s): min= 8143, max= 8175, per=97.36%, avg=8159.00, stdev=22.63, 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=0.11%, sys=3.85%, ctx=67, 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=5988KiB/s (6132kB/s), 1497KiB/s-5838KiB/s (1533kB/s-5978kB/s), io=16.0MiB (16.8MB), run=2105-2736msec WRITE: bw=8381KiB/s (8582kB/s), 2994KiB/s-4422KiB/s (3066kB/s-4528kB/s), io=32.0MiB (33.6MB), run=2736-3910msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179982: Fri Aug 14 21:36:38 2026 read: IOPS=1, BW=4817KiB/s (4933kB/s)(12.0MiB/2551msec) clat (msec): min=773, max=957, avg=849.70, stdev=95.95 lat (msec): min=773, max=957, avg=849.70, stdev=95.95 clat percentiles (msec): | 1.00th=[ 776], 5.00th=[ 776], 10.00th=[ 776], 20.00th=[ 776], | 30.00th=[ 776], 40.00th=[ 818], 50.00th=[ 818], 60.00th=[ 818], | 70.00th=[ 961], 80.00th=[ 961], 90.00th=[ 961], 95.00th=[ 961], | 99.00th=[ 961], 99.50th=[ 961], 99.90th=[ 961], 99.95th=[ 961], | 99.99th=[ 961] bw ( KiB/s): min= 8159, max= 8175, per=100.00%, avg=8167.00, stdev=11.31, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=100.00% cpu : usr=0.00%, sys=10.82%, ctx=172, 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=179983: Fri Aug 14 21:36:38 2026 read: IOPS=0, BW=1312KiB/s (1343kB/s)(4096KiB/3122msec) clat (nsec): min=1018.5M, max=1018.5M, avg=1018481643.00, stdev= 0.00 lat (nsec): min=1018.5M, max=1018.5M, avg=1018483160.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1020], 5.00th=[ 1020], 10.00th=[ 1020], 20.00th=[ 1020], | 30.00th=[ 1020], 40.00th=[ 1020], 50.00th=[ 1020], 60.00th=[ 1020], | 70.00th=[ 1020], 80.00th=[ 1020], 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= 8000, max= 8000, per=100.00%, avg=8000.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2624KiB/s (2687kB/s)(8192KiB/3122msec); 0 zone resets clat (msec): min=581, max=1516, avg=1049.30, stdev=660.96 lat (msec): min=585, max=1516, avg=1051.34, stdev=658.52 clat percentiles (msec): | 1.00th=[ 584], 5.00th=[ 584], 10.00th=[ 584], 20.00th=[ 584], | 30.00th=[ 584], 40.00th=[ 584], 50.00th=[ 584], 60.00th=[ 1519], | 70.00th=[ 1519], 80.00th=[ 1519], 90.00th=[ 1519], 95.00th=[ 1519], | 99.00th=[ 1519], 99.50th=[ 1519], 99.90th=[ 1519], 99.95th=[ 1519], | 99.99th=[ 1519] bw ( KiB/s): min= 8159, max= 8159, per=85.91%, avg=8159.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=33.33%, 2000=66.67% cpu : usr=0.00%, sys=4.61%, ctx=86, 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=179984: Fri Aug 14 21:36:38 2026 write: IOPS=0, BW=3562KiB/s (3647kB/s)(12.0MiB/3450msec); 0 zone resets clat (msec): min=200, max=1657, avg=1149.15, stdev=822.02 lat (msec): min=200, max=1658, avg=1149.60, stdev=822.29 clat percentiles (msec): | 1.00th=[ 201], 5.00th=[ 201], 10.00th=[ 201], 20.00th=[ 201], | 30.00th=[ 201], 40.00th=[ 1586], 50.00th=[ 1586], 60.00th=[ 1586], | 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= 8159, max= 8159, per=85.91%, avg=8159.00, 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=2.70%, ctx=33, 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=179985: Fri Aug 14 21:36:38 2026 write: IOPS=1, BW=4551KiB/s (4660kB/s)(12.0MiB/2700msec); 0 zone resets clat (msec): min=691, max=1082, avg=897.70, stdev=196.14 lat (msec): min=691, max=1082, avg=897.96, stdev=196.07 clat percentiles (msec): | 1.00th=[ 693], 5.00th=[ 693], 10.00th=[ 693], 20.00th=[ 693], | 30.00th=[ 693], 40.00th=[ 919], 50.00th=[ 919], 60.00th=[ 919], | 70.00th=[ 1083], 80.00th=[ 1083], 90.00th=[ 1083], 95.00th=[ 1083], | 99.00th=[ 1083], 99.50th=[ 1083], 99.90th=[ 1083], 99.95th=[ 1083], | 99.99th=[ 1083] bw ( KiB/s): min= 8000, max= 8159, per=85.07%, avg=8079.50, stdev=112.43, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=3.11%, ctx=51, 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=5248KiB/s (5374kB/s), 1312KiB/s-4817KiB/s (1343kB/s-4933kB/s), io=16.0MiB (16.8MB), run=2551-3122msec WRITE: bw=9498KiB/s (9726kB/s), 2624KiB/s-4551KiB/s (2687kB/s-4660kB/s), io=32.0MiB (33.6MB), run=2700-3450msec