== sanity test 398b: DIO and buffer IO race ============== 06:26:07 (1786011967) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 6.53546 s, 7.7 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=178264: Thu Aug 6 06:29:14 2026 read: IOPS=9, BW=38.2KiB/s (39.1kB/s)(5992KiB/157055msec) clat (usec): min=42, max=425082, avg=57650.15, stdev=39787.48 lat (usec): min=42, max=425083, avg=57653.81, stdev=39791.72 clat percentiles (usec): | 1.00th=[ 51], 5.00th=[ 13829], 10.00th=[ 20579], 20.00th=[ 28705], | 30.00th=[ 34866], 40.00th=[ 41157], 50.00th=[ 49021], 60.00th=[ 56886], | 70.00th=[ 66847], 80.00th=[ 82314], 90.00th=[107480], 95.00th=[127402], | 99.00th=[200279], 99.50th=[242222], 99.90th=[312476], 99.95th=[425722], | 99.99th=[425722] bw ( KiB/s): min= 7, max= 110, per=25.48%, avg=38.48, stdev=17.97, samples=301 iops : min= 1, max= 27, avg= 8.97, stdev= 4.53, samples=301 write: IOPS=10, BW=40.1KiB/s (41.0kB/s)(6296KiB/157055msec); 0 zone resets clat (usec): min=1022, max=1284.3k, avg=44402.44, stdev=56536.40 lat (usec): min=1023, max=1284.3k, avg=44413.86, stdev=56531.82 clat percentiles (usec): | 1.00th=[ 1123], 5.00th=[ 1319], 10.00th=[ 2057], | 20.00th=[ 5604], 30.00th=[ 10683], 40.00th=[ 18220], | 50.00th=[ 28967], 60.00th=[ 40109], 70.00th=[ 54789], | 80.00th=[ 74974], 90.00th=[ 107480], 95.00th=[ 139461], | 99.00th=[ 204473], 99.50th=[ 258999], 99.90th=[ 463471], | 99.95th=[1283458], 99.99th=[1283458] bw ( KiB/s): min= 7, max= 112, per=25.51%, avg=40.30, stdev=20.59, samples=302 iops : min= 1, max= 28, avg= 9.42, stdev= 5.20, samples=302 lat (usec) : 50=0.46%, 100=1.24%, 500=0.10% lat (msec) : 2=5.05%, 4=2.77%, 10=7.23%, 20=8.50%, 50=34.15% lat (msec) : 100=28.52%, 250=11.52%, 500=0.46%, 2000=0.03% cpu : usr=0.06%, sys=4.00%, ctx=6170, 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=178265: Thu Aug 6 06:29:14 2026 read: IOPS=9, BW=37.9KiB/s (38.8kB/s)(5940KiB/156912msec) clat (usec): min=34, max=1584.9k, avg=60577.57, stdev=60157.21 lat (usec): min=34, max=1584.9k, avg=60578.90, stdev=60157.03 clat percentiles (usec): | 1.00th=[ 50], 5.00th=[ 12911], 10.00th=[ 20055], | 20.00th=[ 28181], 30.00th=[ 34866], 40.00th=[ 42206], | 50.00th=[ 50070], 60.00th=[ 58983], 70.00th=[ 68682], | 80.00th=[ 83362], 90.00th=[ 110625], 95.00th=[ 133694], | 99.00th=[ 227541], 99.50th=[ 270533], 99.90th=[ 574620], | 99.95th=[1585447], 99.99th=[1585447] bw ( KiB/s): min= 5, max= 111, per=25.25%, avg=38.13, stdev=17.90, samples=302 iops : min= 1, max= 27, avg= 8.87, stdev= 4.50, samples=302 write: IOPS=10, BW=40.5KiB/s (41.4kB/s)(6348KiB/156912msec); 0 zone resets clat (usec): min=912, max=312450, avg=41727.25, stdev=44149.56 lat (usec): min=913, max=312451, avg=41732.95, stdev=44153.38 clat percentiles (usec): | 1.00th=[ 1123], 5.00th=[ 1287], 10.00th=[ 1729], 20.00th=[ 5211], | 30.00th=[ 9241], 40.00th=[ 17695], 50.00th=[ 28181], 60.00th=[ 39584], | 70.00th=[ 52167], 80.00th=[ 72877], 90.00th=[103285], 95.00th=[135267], | 99.00th=[189793], 99.50th=[208667], 99.90th=[278922], 99.95th=[312476], | 99.99th=[312476] bw ( KiB/s): min= 7, max= 103, per=25.60%, avg=40.45, stdev=20.36, samples=304 iops : min= 1, max= 25, avg= 9.45, stdev= 5.13, samples=304 lat (usec) : 50=0.55%, 100=1.20%, 250=0.03%, 750=0.03%, 1000=0.07% lat (msec) : 2=5.40%, 4=3.03%, 10=7.94%, 20=8.53%, 50=32.68% lat (msec) : 100=28.68%, 250=11.49%, 500=0.26%, 750=0.07%, 2000=0.03% cpu : usr=0.06%, sys=4.15%, ctx=6289, 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=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=178266: Thu Aug 6 06:29:14 2026 read: IOPS=9, BW=38.5KiB/s (39.4kB/s)(6028KiB/156616msec) clat (usec): min=32, max=328413, avg=56523.70, stdev=38369.13 lat (usec): min=32, max=328414, avg=56529.95, stdev=38374.89 clat percentiles (usec): | 1.00th=[ 49], 5.00th=[ 10552], 10.00th=[ 19792], 20.00th=[ 27132], | 30.00th=[ 34866], 40.00th=[ 41157], 50.00th=[ 47973], 60.00th=[ 57410], | 70.00th=[ 66847], 80.00th=[ 81265], 90.00th=[103285], 95.00th=[124257], | 99.00th=[196084], 99.50th=[217056], 99.90th=[304088], 99.95th=[329253], | 99.99th=[329253] bw ( KiB/s): min= 7, max= 110, per=25.93%, avg=39.16, stdev=18.72, samples=299 iops : min= 1, max= 27, avg= 9.12, stdev= 4.72, samples=299 write: IOPS=9, BW=39.0KiB/s (40.9kB/s)(6260KiB/156616msec); 0 zone resets clat (usec): min=1001, max=1296.1k, avg=45081.17, stdev=57926.28 lat (usec): min=1002, max=1296.1k, avg=45089.82, stdev=57929.51 clat percentiles (usec): | 1.00th=[ 1106], 5.00th=[ 1254], 10.00th=[ 1516], | 20.00th=[ 5014], 30.00th=[ 9634], 40.00th=[ 17957], | 50.00th=[ 29230], 60.00th=[ 40633], 70.00th=[ 56886], | 80.00th=[ 74974], 90.00th=[ 108528], 95.00th=[ 147850], | 99.00th=[ 214959], 99.50th=[ 267387], 99.90th=[ 400557], | 99.95th=[1300235], 99.99th=[1300235] bw ( KiB/s): min= 6, max= 102, per=25.56%, avg=40.39, stdev=20.02, samples=301 iops : min= 1, max= 25, avg= 9.44, stdev= 5.04, samples=301 lat (usec) : 50=0.68%, 100=1.33%, 250=0.20% lat (msec) : 2=5.83%, 4=3.22%, 10=6.77%, 20=8.37%, 50=32.91% lat (msec) : 100=29.07%, 250=11.17%, 500=0.42%, 2000=0.03% cpu : usr=0.05%, sys=3.91%, ctx=6146, 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=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=178267: Thu Aug 6 06:29:14 2026 read: IOPS=9, BW=38.1KiB/s (39.0kB/s)(6052KiB/158817msec) clat (usec): min=36, max=522640, avg=58143.91, stdev=44479.56 lat (usec): min=36, max=522642, avg=58145.15, stdev=44479.71 clat percentiles (usec): | 1.00th=[ 49], 5.00th=[ 10945], 10.00th=[ 19268], 20.00th=[ 27919], | 30.00th=[ 33817], 40.00th=[ 41157], 50.00th=[ 47973], 60.00th=[ 56886], | 70.00th=[ 67634], 80.00th=[ 81265], 90.00th=[107480], 95.00th=[132645], | 99.00th=[227541], 99.50th=[291505], 99.90th=[379585], 99.95th=[522191], | 99.99th=[522191] bw ( KiB/s): min= 7, max= 119, per=25.54%, avg=38.57, stdev=18.62, samples=304 iops : min= 1, max= 29, avg= 8.98, stdev= 4.68, samples=304 write: IOPS=9, BW=39.3KiB/s (40.2kB/s)(6236KiB/158817msec); 0 zone resets clat (usec): min=882, max=1554.7k, avg=44919.09, stdev=62310.69 lat (usec): min=883, max=1554.7k, avg=44940.10, stdev=62302.33 clat percentiles (usec): | 1.00th=[ 1156], 5.00th=[ 1319], 10.00th=[ 1844], | 20.00th=[ 5211], 30.00th=[ 9896], 40.00th=[ 18744], | 50.00th=[ 28967], 60.00th=[ 40633], 70.00th=[ 56361], | 80.00th=[ 73925], 90.00th=[ 105382], 95.00th=[ 139461], | 99.00th=[ 214959], 99.50th=[ 256902], 99.90th=[ 513803], | 99.95th=[1551893], 99.99th=[1551893] bw ( KiB/s): min= 6, max= 103, per=25.24%, avg=39.88, stdev=21.42, samples=303 iops : min= 1, max= 25, avg= 9.31, stdev= 5.39, samples=303 lat (usec) : 50=0.68%, 100=1.33%, 250=0.10%, 500=0.07%, 1000=0.07% lat (msec) : 2=5.31%, 4=3.19%, 10=6.93%, 20=8.27%, 50=33.82% lat (msec) : 100=28.48%, 250=11.10%, 500=0.55%, 750=0.07%, 2000=0.03% cpu : usr=0.06%, sys=3.94%, ctx=6217, 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=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=151KiB/s (155kB/s), 37.9KiB/s-38.5KiB/s (38.8kB/s-39.4kB/s), io=23.4MiB (24.6MB), run=156616-158817msec WRITE: bw=158KiB/s (162kB/s), 39.3KiB/s-40.5KiB/s (40.2kB/s-41.4kB/s), io=24.6MiB (25.7MB), run=156616-158817msec rand-rw: (groupid=0, jobs=1): err= 0: pid=178270: Thu Aug 6 06:30:01 2026 read: IOPS=7, BW=29.4KiB/s (30.1kB/s)(5992KiB/203953msec) clat (msec): min=5, max=1481, avg=52.90, stdev=63.49 lat (msec): min=5, max=1481, avg=52.90, stdev=63.49 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 23], 40.00th=[ 28], 50.00th=[ 34], 60.00th=[ 42], | 70.00th=[ 54], 80.00th=[ 75], 90.00th=[ 117], 95.00th=[ 159], | 99.00th=[ 268], 99.50th=[ 317], 99.90th=[ 397], 99.95th=[ 1485], | 99.99th=[ 1485] bw ( KiB/s): min= 7, max= 133, per=26.38%, avg=30.87, stdev=22.83, samples=375 iops : min= 1, max= 33, avg= 7.06, stdev= 5.75, samples=375 write: IOPS=7, BW=30.9KiB/s (31.6kB/s)(6296KiB/203953msec); 0 zone resets clat (msec): min=11, max=569, avg=79.06, stdev=62.00 lat (msec): min=11, max=569, avg=79.06, stdev=62.00 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 23], 10.00th=[ 27], 20.00th=[ 34], | 30.00th=[ 42], 40.00th=[ 50], 50.00th=[ 59], 60.00th=[ 72], | 70.00th=[ 91], 80.00th=[ 116], 90.00th=[ 159], 95.00th=[ 197], | 99.00th=[ 305], 99.50th=[ 368], 99.90th=[ 518], 99.95th=[ 567], | 99.99th=[ 567] bw ( KiB/s): min= 7, max= 110, per=25.46%, avg=31.06, stdev=21.25, samples=391 iops : min= 1, max= 27, avg= 7.10, stdev= 5.35, samples=391 lat (msec) : 10=2.05%, 20=11.56%, 50=40.56%, 100=26.17%, 250=17.87% lat (msec) : 500=1.69%, 750=0.07%, 2000=0.03% cpu : usr=0.04%, sys=1.57%, ctx=4814, 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=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=178271: Thu Aug 6 06:30:01 2026 read: IOPS=7, BW=29.0KiB/s (29.7kB/s)(5940KiB/204638msec) clat (msec): min=6, max=1746, avg=52.08, stdev=67.37 lat (msec): min=6, max=1746, avg=52.09, stdev=67.37 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 19], | 30.00th=[ 23], 40.00th=[ 29], 50.00th=[ 34], 60.00th=[ 42], | 70.00th=[ 52], 80.00th=[ 70], 90.00th=[ 114], 95.00th=[ 155], | 99.00th=[ 268], 99.50th=[ 330], 99.90th=[ 456], 99.95th=[ 1754], | 99.99th=[ 1754] bw ( KiB/s): min= 7, max= 120, per=26.75%, avg=31.30, stdev=21.98, samples=366 iops : min= 1, max= 30, avg= 7.17, stdev= 5.54, samples=366 write: IOPS=7, BW=31.0KiB/s (31.8kB/s)(6348KiB/204638msec); 0 zone resets clat (msec): min=12, max=665, avg=80.05, stdev=62.21 lat (msec): min=12, max=665, avg=80.05, stdev=62.21 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 23], 10.00th=[ 27], 20.00th=[ 35], | 30.00th=[ 42], 40.00th=[ 51], 50.00th=[ 59], 60.00th=[ 72], | 70.00th=[ 92], 80.00th=[ 121], 90.00th=[ 163], 95.00th=[ 197], | 99.00th=[ 305], 99.50th=[ 359], 99.90th=[ 592], 99.95th=[ 667], | 99.99th=[ 667] bw ( KiB/s): min= 7, max= 96, per=25.79%, avg=31.46, stdev=21.19, samples=388 iops : min= 1, max= 24, avg= 7.21, stdev= 5.34, samples=388 lat (msec) : 10=1.76%, 20=11.17%, 50=41.44%, 100=25.59%, 250=18.46% lat (msec) : 500=1.50%, 750=0.07%, 2000=0.03% cpu : usr=0.04%, sys=1.50%, ctx=4704, 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=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=178272: Thu Aug 6 06:30:01 2026 read: IOPS=7, BW=29.4KiB/s (30.1kB/s)(6028KiB/204756msec) clat (msec): min=5, max=410, avg=53.13, stdev=52.03 lat (msec): min=5, max=410, avg=53.13, stdev=52.03 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 12], 10.00th=[ 15], 20.00th=[ 19], | 30.00th=[ 24], 40.00th=[ 29], 50.00th=[ 35], 60.00th=[ 44], | 70.00th=[ 56], 80.00th=[ 73], 90.00th=[ 118], 95.00th=[ 163], | 99.00th=[ 257], 99.50th=[ 305], 99.90th=[ 405], 99.95th=[ 409], | 99.99th=[ 409] bw ( KiB/s): min= 7, max= 119, per=26.14%, avg=30.58, stdev=21.65, samples=381 iops : min= 1, max= 29, avg= 6.98, stdev= 5.46, samples=381 write: IOPS=7, BW=30.6KiB/s (31.3kB/s)(6260KiB/204756msec); 0 zone resets clat (msec): min=13, max=1865, avg=79.59, stdev=76.47 lat (msec): min=13, max=1865, avg=79.60, stdev=76.47 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 23], 10.00th=[ 27], 20.00th=[ 35], | 30.00th=[ 42], 40.00th=[ 49], 50.00th=[ 59], 60.00th=[ 73], | 70.00th=[ 91], 80.00th=[ 111], 90.00th=[ 150], 95.00th=[ 203], | 99.00th=[ 321], 99.50th=[ 363], 99.90th=[ 659], 99.95th=[ 1871], | 99.99th=[ 1871] bw ( KiB/s): min= 7, max= 111, per=25.50%, avg=31.11, stdev=21.14, samples=389 iops : min= 1, max= 27, avg= 7.12, stdev= 5.33, samples=389 lat (msec) : 10=1.33%, 20=10.61%, 50=41.83%, 100=27.08%, 250=17.61% lat (msec) : 500=1.40%, 750=0.10%, 2000=0.03% cpu : usr=0.04%, sys=1.55%, ctx=4703, 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=178273: Thu Aug 6 06:30:01 2026 read: IOPS=7, BW=29.6KiB/s (30.3kB/s)(6052KiB/204653msec) clat (msec): min=5, max=483, avg=54.17, stdev=56.60 lat (msec): min=5, max=483, avg=54.18, stdev=56.60 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 23], 40.00th=[ 29], 50.00th=[ 34], 60.00th=[ 42], | 70.00th=[ 55], 80.00th=[ 78], 90.00th=[ 126], 95.00th=[ 178], | 99.00th=[ 262], 99.50th=[ 321], 99.90th=[ 430], 99.95th=[ 485], | 99.99th=[ 485] bw ( KiB/s): min= 7, max= 119, per=26.67%, avg=31.20, stdev=23.58, samples=373 iops : min= 1, max= 29, avg= 7.14, stdev= 5.94, samples=373 write: IOPS=7, BW=30.5KiB/s (31.2kB/s)(6236KiB/204653msec); 0 zone resets clat (msec): min=13, max=1806, avg=78.59, stdev=74.71 lat (msec): min=13, max=1806, avg=78.60, stdev=74.71 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 24], 10.00th=[ 27], 20.00th=[ 35], | 30.00th=[ 42], 40.00th=[ 49], 50.00th=[ 58], 60.00th=[ 68], | 70.00th=[ 88], 80.00th=[ 114], 90.00th=[ 157], 95.00th=[ 197], | 99.00th=[ 300], 99.50th=[ 355], 99.90th=[ 726], 99.95th=[ 1804], | 99.99th=[ 1804] bw ( KiB/s): min= 7, max= 101, per=25.71%, avg=31.37, stdev=20.45, samples=382 iops : min= 1, max= 25, avg= 7.18, stdev= 5.15, samples=382 lat (msec) : 10=1.66%, 20=11.75%, 50=40.72%, 100=25.98%, 250=18.29% lat (msec) : 500=1.50%, 750=0.07%, 2000=0.03% cpu : usr=0.03%, sys=1.51%, ctx=4700, 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=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=117KiB/s (120kB/s), 29.0KiB/s-29.6KiB/s (29.7kB/s-30.3kB/s), io=23.4MiB (24.6MB), run=203953-204756msec WRITE: bw=123KiB/s (126kB/s), 30.5KiB/s-31.0KiB/s (31.2kB/s-31.8kB/s), io=24.6MiB (25.7MB), run=203953-204756msec 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=178327: Thu Aug 6 06:31:08 2026 read: IOPS=7, BW=113KiB/s (116kB/s)(5920KiB/52397msec) clat (usec): min=41, max=280483, avg=76107.38, stdev=51339.23 lat (usec): min=42, max=280484, avg=76109.01, stdev=51339.27 clat percentiles (usec): | 1.00th=[ 51], 5.00th=[ 65], 10.00th=[ 26870], 20.00th=[ 39584], | 30.00th=[ 49546], 40.00th=[ 58983], 50.00th=[ 67634], 60.00th=[ 77071], | 70.00th=[ 89654], 80.00th=[102237], 90.00th=[127402], 95.00th=[168821], | 99.00th=[263193], 99.50th=[278922], 99.90th=[278922], 99.95th=[278922], | 99.99th=[278922] bw ( KiB/s): min= 29, max= 287, per=25.50%, avg=112.72, stdev=60.12, samples=101 iops : min= 1, max= 17, avg= 6.28, stdev= 3.82, samples=101 write: IOPS=7, BW=122KiB/s (124kB/s)(6368KiB/52397msec); 0 zone resets clat (usec): min=1514, max=341157, avg=60760.65, stdev=60573.98 lat (usec): min=1514, max=341159, avg=60782.69, stdev=60606.69 clat percentiles (usec): | 1.00th=[ 1663], 5.00th=[ 2376], 10.00th=[ 4883], 20.00th=[ 9372], | 30.00th=[ 16319], 40.00th=[ 29754], 50.00th=[ 41157], 60.00th=[ 55837], | 70.00th=[ 76022], 80.00th=[103285], 90.00th=[147850], 95.00th=[187696], | 99.00th=[250610], 99.50th=[304088], 99.90th=[341836], 99.95th=[341836], | 99.99th=[341836] bw ( KiB/s): min= 31, max= 411, per=26.25%, avg=122.05, stdev=65.00, samples=101 iops : min= 1, max= 25, avg= 6.86, stdev= 4.08, samples=101 lat (usec) : 50=0.26%, 100=2.60%, 250=0.13%, 750=0.13% lat (msec) : 2=2.21%, 4=1.95%, 10=6.38%, 20=6.64%, 50=23.18% lat (msec) : 100=34.90%, 250=20.18%, 500=1.43% cpu : usr=0.05%, sys=3.48%, ctx=1599, 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=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=178329: Thu Aug 6 06:31:08 2026 read: IOPS=6, BW=111KiB/s (113kB/s)(5744KiB/51837msec) clat (usec): min=51, max=334968, avg=73763.88, stdev=47578.47 lat (usec): min=52, max=334968, avg=73769.14, stdev=47584.93 clat percentiles (usec): | 1.00th=[ 56], 5.00th=[ 65], 10.00th=[ 18744], 20.00th=[ 37487], | 30.00th=[ 47973], 40.00th=[ 56886], 50.00th=[ 65799], 60.00th=[ 79168], | 70.00th=[ 89654], 80.00th=[106431], 90.00th=[139461], 95.00th=[160433], | 99.00th=[217056], 99.50th=[238027], 99.90th=[333448], 99.95th=[333448], | 99.99th=[333448] bw ( KiB/s): min= 30, max= 318, per=25.21%, avg=111.42, stdev=54.35, samples=100 iops : min= 1, max= 19, avg= 6.20, stdev= 3.48, samples=100 write: IOPS=7, BW=126KiB/s (129kB/s)(6544KiB/51837msec); 0 zone resets clat (usec): min=1512, max=309506, avg=61903.49, stdev=58368.62 lat (usec): min=1513, max=309507, avg=61911.09, stdev=58373.48 clat percentiles (usec): | 1.00th=[ 1680], 5.00th=[ 3228], 10.00th=[ 6128], 20.00th=[ 11076], | 30.00th=[ 18220], 40.00th=[ 28181], 50.00th=[ 41681], 60.00th=[ 63701], | 70.00th=[ 81265], 80.00th=[109577], 90.00th=[143655], 95.00th=[177210], | 99.00th=[235930], 99.50th=[256902], 99.90th=[308282], 99.95th=[308282], | 99.99th=[308282] bw ( KiB/s): min= 29, max= 284, per=27.08%, avg=125.91, stdev=60.83, samples=101 iops : min= 1, max= 17, avg= 7.12, stdev= 3.88, samples=101 lat (usec) : 100=3.12%, 250=0.26%, 500=0.13% lat (msec) : 2=2.08%, 4=1.56%, 10=6.12%, 20=8.59%, 50=22.40% lat (msec) : 100=32.16%, 250=23.05%, 500=0.52% cpu : usr=0.05%, sys=3.83%, ctx=1695, 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=178330: Thu Aug 6 06:31:08 2026 read: IOPS=7, BW=116KiB/s (118kB/s)(6256KiB/54096msec) clat (usec): min=32, max=267153, avg=77898.57, stdev=49921.34 lat (usec): min=32, max=267154, avg=77899.57, stdev=49921.37 clat percentiles (usec): | 1.00th=[ 43], 5.00th=[ 63], 10.00th=[ 24773], 20.00th=[ 39584], | 30.00th=[ 48497], 40.00th=[ 58459], 50.00th=[ 68682], 60.00th=[ 82314], | 70.00th=[ 98042], 80.00th=[114820], 90.00th=[141558], 95.00th=[170918], | 99.00th=[250610], 99.50th=[258999], 99.90th=[267387], 99.95th=[267387], | 99.99th=[267387] bw ( KiB/s): min= 30, max= 288, per=26.63%, avg=117.71, stdev=57.27, samples=104 iops : min= 1, max= 18, avg= 6.58, stdev= 3.63, samples=104 write: IOPS=6, BW=112KiB/s (114kB/s)(6032KiB/54096msec); 0 zone resets clat (usec): min=1601, max=392772, avg=62502.80, stdev=65370.27 lat (usec): min=1603, max=392774, avg=62506.28, stdev=65371.02 clat percentiles (usec): | 1.00th=[ 1696], 5.00th=[ 2089], 10.00th=[ 4621], 20.00th=[ 10159], | 30.00th=[ 17171], 40.00th=[ 25035], 50.00th=[ 42206], 60.00th=[ 55313], | 70.00th=[ 79168], 80.00th=[108528], 90.00th=[145753], 95.00th=[193987], | 99.00th=[295699], 99.50th=[337642], 99.90th=[392168], 99.95th=[392168], | 99.99th=[392168] bw ( KiB/s): min= 29, max= 286, per=24.18%, avg=112.44, stdev=60.09, samples=104 iops : min= 1, max= 17, avg= 6.25, stdev= 3.81, samples=104 lat (usec) : 50=0.91%, 100=2.73%, 500=0.13% lat (msec) : 2=2.34%, 4=1.69%, 10=5.60%, 20=8.20%, 50=22.27% lat (msec) : 100=30.60%, 250=24.09%, 500=1.43% cpu : usr=0.04%, sys=3.59%, ctx=1682, 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=178331: Thu Aug 6 06:31:08 2026 read: IOPS=7, BW=122KiB/s (125kB/s)(6032KiB/49400msec) clat (usec): min=37, max=336861, avg=74264.96, stdev=53741.66 lat (usec): min=37, max=336862, avg=74266.02, stdev=53741.79 clat percentiles (usec): | 1.00th=[ 50], 5.00th=[ 58], 10.00th=[ 133], 20.00th=[ 32113], | 30.00th=[ 43779], 40.00th=[ 53740], 50.00th=[ 65799], 60.00th=[ 83362], | 70.00th=[ 96994], 80.00th=[108528], 90.00th=[137364], 95.00th=[162530], | 99.00th=[295699], 99.50th=[308282], 99.90th=[337642], 99.95th=[337642], | 99.99th=[337642] bw ( KiB/s): min= 31, max= 256, per=27.20%, avg=120.24, stdev=59.76, samples=96 iops : min= 1, max= 16, avg= 6.75, stdev= 3.82, samples=96 write: IOPS=7, BW=127KiB/s (130kB/s)(6256KiB/49400msec); 0 zone resets clat (usec): min=1435, max=227625, avg=54511.79, stdev=54963.47 lat (usec): min=1437, max=227628, avg=54517.31, stdev=54960.27 clat percentiles (usec): | 1.00th=[ 1647], 5.00th=[ 1876], 10.00th=[ 4883], 20.00th=[ 9372], | 30.00th=[ 14746], 40.00th=[ 21890], 50.00th=[ 33817], 60.00th=[ 50594], | 70.00th=[ 67634], 80.00th=[ 98042], 90.00th=[139461], 95.00th=[179307], | 99.00th=[219153], 99.50th=[225444], 99.90th=[227541], 99.95th=[227541], | 99.99th=[227541] bw ( KiB/s): min= 29, max= 316, per=27.52%, avg=127.97, stdev=71.60, samples=94 iops : min= 1, max= 19, avg= 7.23, stdev= 4.53, samples=94 lat (usec) : 50=0.52%, 100=4.17%, 250=0.39% lat (msec) : 2=3.12%, 4=1.30%, 10=6.77%, 20=8.46%, 50=23.05% lat (msec) : 100=30.47%, 250=20.96%, 500=0.78% cpu : usr=0.05%, sys=3.69%, ctx=1570, 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=443KiB/s (453kB/s), 111KiB/s-122KiB/s (113kB/s-125kB/s), io=23.4MiB (24.5MB), run=49400-54096msec WRITE: bw=466KiB/s (477kB/s), 112KiB/s-127KiB/s (114kB/s-130kB/s), io=24.6MiB (25.8MB), run=49400-54096msec rand-rw: (groupid=0, jobs=1): err= 0: pid=178322: Thu Aug 6 06:31:26 2026 read: IOPS=5, BW=82.9KiB/s (84.9kB/s)(5920KiB/71427msec) clat (msec): min=7, max=351, avg=78.14, stdev=67.78 lat (msec): min=7, max=351, avg=78.14, stdev=67.78 clat percentiles (msec): | 1.00th=[ 12], 5.00th=[ 17], 10.00th=[ 21], 20.00th=[ 28], | 30.00th=[ 36], 40.00th=[ 46], 50.00th=[ 55], 60.00th=[ 69], | 70.00th=[ 85], 80.00th=[ 113], 90.00th=[ 171], 95.00th=[ 247], | 99.00th=[ 317], 99.50th=[ 342], 99.90th=[ 351], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 30, max= 314, per=27.07%, avg=89.86, stdev=54.62, samples=127 iops : min= 1, max= 19, avg= 4.80, stdev= 3.47, samples=127 write: IOPS=5, BW=89.2KiB/s (91.3kB/s)(6368KiB/71427msec); 0 zone resets clat (msec): min=16, max=580, avg=106.24, stdev=70.50 lat (msec): min=16, max=580, avg=106.24, stdev=70.50 clat percentiles (msec): | 1.00th=[ 22], 5.00th=[ 32], 10.00th=[ 39], 20.00th=[ 50], | 30.00th=[ 61], 40.00th=[ 71], 50.00th=[ 84], 60.00th=[ 105], | 70.00th=[ 127], 80.00th=[ 161], 90.00th=[ 205], 95.00th=[ 243], | 99.00th=[ 334], 99.50th=[ 355], 99.90th=[ 584], 99.95th=[ 584], | 99.99th=[ 584] bw ( KiB/s): min= 30, max= 253, per=26.46%, avg=92.61, stdev=53.47, samples=134 iops : min= 1, max= 15, avg= 4.98, stdev= 3.44, samples=134 lat (msec) : 10=0.39%, 20=4.43%, 50=27.60%, 100=34.38%, 250=29.30% lat (msec) : 500=3.78%, 750=0.13% cpu : usr=0.04%, sys=1.19%, ctx=1156, 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=178323: Thu Aug 6 06:31:26 2026 read: IOPS=5, BW=80.8KiB/s (82.8kB/s)(5744KiB/71045msec) clat (msec): min=9, max=292, avg=75.02, stdev=55.77 lat (msec): min=9, max=292, avg=75.02, stdev=55.77 clat percentiles (msec): | 1.00th=[ 12], 5.00th=[ 20], 10.00th=[ 24], 20.00th=[ 34], | 30.00th=[ 41], 40.00th=[ 49], 50.00th=[ 61], 60.00th=[ 71], | 70.00th=[ 82], 80.00th=[ 102], 90.00th=[ 159], 95.00th=[ 197], | 99.00th=[ 271], 99.50th=[ 292], 99.90th=[ 292], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 31, max= 287, per=28.47%, avg=94.53, stdev=55.74, samples=118 iops : min= 1, max= 17, avg= 5.08, stdev= 3.53, samples=118 write: IOPS=5, BW=92.1KiB/s (94.3kB/s)(6544KiB/71045msec); 0 zone resets clat (msec): min=20, max=433, avg=107.38, stdev=67.07 lat (msec): min=20, max=433, avg=107.38, stdev=67.07 clat percentiles (msec): | 1.00th=[ 27], 5.00th=[ 35], 10.00th=[ 41], 20.00th=[ 53], | 30.00th=[ 64], 40.00th=[ 79], 50.00th=[ 90], 60.00th=[ 104], | 70.00th=[ 124], 80.00th=[ 153], 90.00th=[ 205], 95.00th=[ 249], | 99.00th=[ 313], 99.50th=[ 321], 99.90th=[ 435], 99.95th=[ 435], | 99.99th=[ 435] bw ( KiB/s): min= 29, max= 224, per=27.58%, avg=96.55, stdev=48.43, samples=132 iops : min= 1, max= 14, avg= 5.23, stdev= 3.10, samples=132 lat (msec) : 10=0.13%, 20=2.73%, 50=26.56%, 100=38.28%, 250=28.91% lat (msec) : 500=3.39% cpu : usr=0.03%, sys=1.27%, ctx=1214, 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=178324: Thu Aug 6 06:31:26 2026 read: IOPS=5, BW=86.0KiB/s (89.1kB/s)(6256KiB/71930msec) clat (msec): min=7, max=376, avg=79.16, stdev=66.08 lat (msec): min=7, max=376, avg=79.17, stdev=66.08 clat percentiles (msec): | 1.00th=[ 12], 5.00th=[ 19], 10.00th=[ 24], 20.00th=[ 31], | 30.00th=[ 40], 40.00th=[ 49], 50.00th=[ 61], 60.00th=[ 73], | 70.00th=[ 88], 80.00th=[ 108], 90.00th=[ 161], 95.00th=[ 226], | 99.00th=[ 330], 99.50th=[ 368], 99.90th=[ 376], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 30, max= 317, per=28.84%, avg=95.76, stdev=61.80, samples=128 iops : min= 1, max= 19, avg= 5.18, stdev= 3.96, samples=128 write: IOPS=5, BW=83.9KiB/s (85.9kB/s)(6032KiB/71930msec); 0 zone resets clat (msec): min=21, max=465, avg=108.43, stdev=74.47 lat (msec): min=21, max=465, avg=108.43, stdev=74.47 clat percentiles (msec): | 1.00th=[ 26], 5.00th=[ 34], 10.00th=[ 40], 20.00th=[ 52], | 30.00th=[ 63], 40.00th=[ 71], 50.00th=[ 88], 60.00th=[ 103], | 70.00th=[ 123], 80.00th=[ 150], 90.00th=[ 226], 95.00th=[ 284], | 99.00th=[ 351], 99.50th=[ 422], 99.90th=[ 468], 99.95th=[ 468], | 99.99th=[ 468] bw ( KiB/s): min= 29, max= 281, per=24.72%, avg=86.51, stdev=51.69, samples=135 iops : min= 1, max= 17, avg= 4.60, stdev= 3.32, samples=135 lat (msec) : 10=0.39%, 20=3.12%, 50=26.69%, 100=37.37%, 250=26.95% lat (msec) : 500=5.47% cpu : usr=0.03%, sys=1.39%, ctx=1291, 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=178325: Thu Aug 6 06:31:26 2026 read: IOPS=5, BW=84.9KiB/s (86.9kB/s)(6032KiB/71075msec) clat (msec): min=10, max=366, avg=77.02, stdev=57.19 lat (msec): min=10, max=366, avg=77.04, stdev=57.18 clat percentiles (msec): | 1.00th=[ 12], 5.00th=[ 20], 10.00th=[ 27], 20.00th=[ 35], | 30.00th=[ 43], 40.00th=[ 52], 50.00th=[ 63], 60.00th=[ 73], | 70.00th=[ 86], 80.00th=[ 103], 90.00th=[ 155], 95.00th=[ 197], | 99.00th=[ 296], 99.50th=[ 326], 99.90th=[ 368], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 29, max= 255, per=27.72%, avg=92.02, stdev=52.13, samples=127 iops : min= 1, max= 15, avg= 4.94, stdev= 3.32, samples=127 write: IOPS=5, BW=88.0KiB/s (90.1kB/s)(6256KiB/71075msec); 0 zone resets clat (msec): min=17, max=562, avg=107.02, stdev=74.90 lat (msec): min=17, max=562, avg=107.03, stdev=74.90 clat percentiles (msec): | 1.00th=[ 20], 5.00th=[ 34], 10.00th=[ 40], 20.00th=[ 51], | 30.00th=[ 57], 40.00th=[ 70], 50.00th=[ 84], 60.00th=[ 101], | 70.00th=[ 125], 80.00th=[ 161], 90.00th=[ 209], 95.00th=[ 249], | 99.00th=[ 355], 99.50th=[ 430], 99.90th=[ 567], 99.95th=[ 567], | 99.99th=[ 567] bw ( KiB/s): min= 30, max= 283, per=25.99%, avg=90.95, stdev=53.86, samples=134 iops : min= 1, max= 17, avg= 4.87, stdev= 3.43, samples=134 lat (msec) : 20=2.99%, 50=25.13%, 100=41.41%, 250=26.95%, 500=3.39% lat (msec) : 750=0.13% cpu : usr=0.04%, sys=1.34%, ctx=1264, 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=333KiB/s (341kB/s), 80.8KiB/s-86.0KiB/s (82.8kB/s-89.1kB/s), io=23.4MiB (24.5MB), run=71045-71930msec WRITE: bw=350KiB/s (359kB/s), 83.9KiB/s-92.1KiB/s (85.9kB/s-94.3kB/s), io=24.6MiB (25.8MB), run=71045-71930msec 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=178348: Thu Aug 6 06:31:47 2026 read: IOPS=1, BW=1917KiB/s (1963kB/s)(7168KiB/3740msec) clat (msec): min=161, max=367, avg=236.76, stdev=66.94 lat (msec): min=161, max=367, avg=236.77, stdev=66.94 clat percentiles (msec): | 1.00th=[ 163], 5.00th=[ 163], 10.00th=[ 163], 20.00th=[ 194], | 30.00th=[ 211], 40.00th=[ 211], 50.00th=[ 213], 60.00th=[ 236], | 70.00th=[ 236], 80.00th=[ 271], 90.00th=[ 368], 95.00th=[ 368], | 99.00th=[ 368], 99.50th=[ 368], 99.90th=[ 368], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 2031, max= 4471, per=91.08%, avg=3452.67, stdev=1269.02, samples=3 iops : min= 1, max= 4, avg= 2.67, stdev= 1.53, samples=3 write: IOPS=1, BW=1369KiB/s (1402kB/s)(5120KiB/3740msec); 0 zone resets clat (msec): min=327, max=490, avg=410.56, stdev=73.11 lat (msec): min=327, max=490, avg=411.25, stdev=73.69 clat percentiles (msec): | 1.00th=[ 330], 5.00th=[ 330], 10.00th=[ 330], 20.00th=[ 330], | 30.00th=[ 347], 40.00th=[ 347], 50.00th=[ 418], 60.00th=[ 418], | 70.00th=[ 472], 80.00th=[ 472], 90.00th=[ 489], 95.00th=[ 489], | 99.00th=[ 489], 99.50th=[ 489], 99.90th=[ 489], 99.95th=[ 489], | 99.99th=[ 489] bw ( KiB/s): min= 1684, max= 3750, per=44.34%, avg=2353.75, stdev=942.56, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (msec) : 250=41.67%, 500=58.33% cpu : usr=0.00%, sys=12.38%, ctx=170, 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=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=178349: Thu Aug 6 06:31:47 2026 read: IOPS=0, BW=379KiB/s (388kB/s)(2048KiB/5401msec) clat (usec): min=458, max=173330, avg=86894.14, stdev=122238.82 lat (usec): min=459, max=173332, avg=86895.72, stdev=122239.46 clat percentiles (usec): | 1.00th=[ 457], 5.00th=[ 457], 10.00th=[ 457], 20.00th=[ 457], | 30.00th=[ 457], 40.00th=[ 457], 50.00th=[ 457], 60.00th=[173016], | 70.00th=[173016], 80.00th=[173016], 90.00th=[173016], 95.00th=[173016], | 99.00th=[173016], 99.50th=[173016], 99.90th=[173016], 99.95th=[173016], | 99.99th=[173016] bw ( KiB/s): min= 1494, max= 1605, per=40.87%, avg=1549.50, stdev=78.49, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1896KiB/s (1941kB/s)(10.0MiB/5401msec); 0 zone resets clat (msec): min=141, max=1383, avg=478.12, stdev=366.06 lat (msec): min=141, max=1383, avg=478.27, stdev=366.04 clat percentiles (msec): | 1.00th=[ 142], 5.00th=[ 142], 10.00th=[ 142], 20.00th=[ 190], | 30.00th=[ 251], 40.00th=[ 271], 50.00th=[ 380], 60.00th=[ 388], | 70.00th=[ 485], 80.00th=[ 550], 90.00th=[ 751], 95.00th=[ 1385], | 99.00th=[ 1385], 99.50th=[ 1385], 99.90th=[ 1385], 99.95th=[ 1385], | 99.99th=[ 1385] bw ( KiB/s): min= 1605, max= 5896, per=46.39%, avg=2462.14, stdev=1520.23, samples=7 iops : min= 1, max= 5, avg= 1.57, stdev= 1.51, samples=7 lat (usec) : 500=8.33% lat (msec) : 250=33.33%, 500=33.33%, 750=16.67%, 2000=8.33% cpu : usr=0.00%, sys=10.11%, ctx=198, 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=178350: Thu Aug 6 06:31:47 2026 read: IOPS=1, BW=1488KiB/s (1523kB/s)(6144KiB/4130msec) clat (usec): min=476, max=556943, avg=274222.38, stdev=186460.08 lat (usec): min=476, max=556944, avg=274223.42, stdev=186460.15 clat percentiles (usec): | 1.00th=[ 478], 5.00th=[ 478], 10.00th=[ 478], 20.00th=[191890], | 30.00th=[191890], 40.00th=[217056], 50.00th=[217056], 60.00th=[333448], | 70.00th=[346031], 80.00th=[346031], 90.00th=[557843], 95.00th=[557843], | 99.00th=[557843], 99.50th=[557843], 99.90th=[557843], 99.95th=[557843], | 99.99th=[557843] bw ( KiB/s): min= 1684, max= 3750, per=61.94%, avg=2348.25, stdev=945.76, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1488KiB/s (1523kB/s)(6144KiB/4130msec); 0 zone resets clat (msec): min=193, max=735, avg=399.88, stdev=204.87 lat (msec): min=193, max=735, avg=400.21, stdev=205.10 clat percentiles (msec): | 1.00th=[ 194], 5.00th=[ 194], 10.00th=[ 194], 20.00th=[ 253], | 30.00th=[ 253], 40.00th=[ 309], 50.00th=[ 309], 60.00th=[ 359], | 70.00th=[ 550], 80.00th=[ 550], 90.00th=[ 735], 95.00th=[ 735], | 99.00th=[ 735], 99.50th=[ 735], 99.90th=[ 735], 99.95th=[ 735], | 99.99th=[ 735] bw ( KiB/s): min= 1605, max= 3379, per=40.76%, avg=2163.60, stdev=697.43, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (usec) : 500=8.33% lat (msec) : 250=25.00%, 500=41.67%, 750=25.00% cpu : usr=0.00%, sys=9.66%, ctx=211, 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=178353: Thu Aug 6 06:31:47 2026 read: IOPS=1, BW=1147KiB/s (1175kB/s)(5120KiB/4463msec) clat (usec): min=456, max=288082, avg=111109.21, stdev=151079.35 lat (usec): min=458, max=288082, avg=111110.44, stdev=151078.89 clat percentiles (usec): | 1.00th=[ 457], 5.00th=[ 457], 10.00th=[ 457], 20.00th=[ 457], | 30.00th=[ 611], 40.00th=[ 611], 50.00th=[ 1762], 60.00th=[ 1762], | 70.00th=[265290], 80.00th=[265290], 90.00th=[287310], 95.00th=[287310], | 99.00th=[287310], 99.50th=[287310], 99.90th=[287310], 99.95th=[287310], | 99.99th=[287310] bw ( KiB/s): min= 3368, max= 4063, per=98.01%, avg=3715.50, stdev=491.44, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1606KiB/s (1645kB/s)(7168KiB/4463msec); 0 zone resets clat (msec): min=254, max=849, avg=538.38, stdev=235.42 lat (msec): min=254, max=849, avg=538.44, stdev=235.42 clat percentiles (msec): | 1.00th=[ 255], 5.00th=[ 255], 10.00th=[ 255], 20.00th=[ 321], | 30.00th=[ 363], 40.00th=[ 363], 50.00th=[ 584], 60.00th=[ 592], | 70.00th=[ 592], 80.00th=[ 802], 90.00th=[ 852], 95.00th=[ 852], | 99.00th=[ 852], 99.50th=[ 852], 99.90th=[ 852], 99.95th=[ 852], | 99.99th=[ 852] bw ( KiB/s): min= 1477, max= 1950, per=32.37%, avg=1718.20, stdev=193.96, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (usec) : 500=8.33%, 750=8.33% lat (msec) : 2=8.33%, 500=41.67%, 750=16.67%, 1000=16.67% cpu : usr=0.00%, sys=9.21%, ctx=186, 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=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=3792KiB/s (3883kB/s), 379KiB/s-1917KiB/s (388kB/s-1963kB/s), io=20.0MiB (20.0MB), run=3740-5401msec WRITE: bw=5309KiB/s (5436kB/s), 1369KiB/s-1896KiB/s (1402kB/s-1941kB/s), io=28.0MiB (29.4MB), run=3740-5401msec rand-rw: (groupid=0, jobs=1): err= 0: pid=178351: Thu Aug 6 06:31:47 2026 read: IOPS=1, BW=1645KiB/s (1685kB/s)(7168KiB/4357msec) clat (msec): min=95, max=230, avg=178.31, stdev=46.53 lat (msec): min=95, max=230, avg=178.31, stdev=46.53 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 95], 10.00th=[ 95], 20.00th=[ 148], | 30.00th=[ 169], 40.00th=[ 169], 50.00th=[ 186], 60.00th=[ 201], | 70.00th=[ 201], 80.00th=[ 220], 90.00th=[ 232], 95.00th=[ 232], | 99.00th=[ 232], 99.50th=[ 232], 99.90th=[ 232], 99.95th=[ 232], | 99.99th=[ 232] bw ( KiB/s): min= 1787, max= 3088, per=60.69%, avg=2156.80, stdev=527.93, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 write: IOPS=1, BW=1175KiB/s (1203kB/s)(5120KiB/4357msec); 0 zone resets clat (msec): min=459, max=869, avg=604.05, stdev=182.32 lat (msec): min=459, max=869, avg=604.18, stdev=182.27 clat percentiles (msec): | 1.00th=[ 460], 5.00th=[ 460], 10.00th=[ 460], 20.00th=[ 460], | 30.00th=[ 468], 40.00th=[ 468], 50.00th=[ 506], 60.00th=[ 506], | 70.00th=[ 718], 80.00th=[ 718], 90.00th=[ 869], 95.00th=[ 869], | 99.00th=[ 869], 99.50th=[ 869], 99.90th=[ 869], 99.95th=[ 869], | 99.99th=[ 869] bw ( KiB/s): min= 1787, max= 1992, per=38.30%, avg=1906.00, stdev=85.95, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 lat (msec) : 100=8.33%, 250=50.00%, 500=16.67%, 750=16.67%, 1000=8.33% cpu : usr=0.02%, sys=4.45%, ctx=96, 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=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=178352: Thu Aug 6 06:31:47 2026 read: IOPS=0, BW=355KiB/s (364kB/s)(2048KiB/5761msec) clat (msec): min=150, max=656, avg=403.68, stdev=357.69 lat (msec): min=150, max=656, avg=403.68, stdev=357.69 clat percentiles (msec): | 1.00th=[ 150], 5.00th=[ 150], 10.00th=[ 150], 20.00th=[ 150], | 30.00th=[ 150], 40.00th=[ 150], 50.00th=[ 150], 60.00th=[ 659], | 70.00th=[ 659], 80.00th=[ 659], 90.00th=[ 659], 95.00th=[ 659], | 99.00th=[ 659], 99.50th=[ 659], 99.90th=[ 659], 99.95th=[ 659], | 99.99th=[ 659] bw ( KiB/s): min= 1950, max= 1988, per=55.40%, avg=1969.00, stdev=26.87, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1777KiB/s (1820kB/s)(10.0MiB/5761msec); 0 zone resets clat (msec): min=105, max=1095, avg=463.32, stdev=296.38 lat (msec): min=105, max=1095, avg=463.39, stdev=296.38 clat percentiles (msec): | 1.00th=[ 106], 5.00th=[ 106], 10.00th=[ 106], 20.00th=[ 180], | 30.00th=[ 300], 40.00th=[ 330], 50.00th=[ 351], 60.00th=[ 422], | 70.00th=[ 502], 80.00th=[ 558], 90.00th=[ 802], 95.00th=[ 1099], | 99.00th=[ 1099], 99.50th=[ 1099], 99.90th=[ 1099], 99.95th=[ 1099], | 99.99th=[ 1099] bw ( KiB/s): min= 1787, max= 4071, per=44.79%, avg=2228.57, stdev=816.17, samples=7 iops : min= 1, max= 3, avg= 1.29, stdev= 0.76, samples=7 lat (msec) : 250=25.00%, 500=33.33%, 750=25.00%, 1000=8.33%, 2000=8.33% cpu : usr=0.00%, sys=4.38%, ctx=151, 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=178354: Thu Aug 6 06:31:47 2026 read: IOPS=1, BW=1199KiB/s (1228kB/s)(6144KiB/5124msec) clat (msec): min=97, max=1049, avg=408.02, stdev=361.85 lat (msec): min=97, max=1049, avg=408.02, stdev=361.85 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 97], 10.00th=[ 97], 20.00th=[ 101], | 30.00th=[ 101], 40.00th=[ 249], 50.00th=[ 249], 60.00th=[ 384], | 70.00th=[ 567], 80.00th=[ 567], 90.00th=[ 1053], 95.00th=[ 1053], | 99.00th=[ 1053], 99.50th=[ 1053], 99.90th=[ 1053], 99.95th=[ 1053], | 99.99th=[ 1053] bw ( KiB/s): min= 1878, max= 4063, per=93.01%, avg=3305.67, stdev=1237.16, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=1, BW=1199KiB/s (1228kB/s)(6144KiB/5124msec); 0 zone resets clat (msec): min=88, max=585, avg=373.18, stdev=181.32 lat (msec): min=88, max=585, avg=373.25, stdev=181.32 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 89], 10.00th=[ 89], 20.00th=[ 292], | 30.00th=[ 292], 40.00th=[ 300], 50.00th=[ 300], 60.00th=[ 485], | 70.00th=[ 493], 80.00th=[ 493], 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= 1928, max= 3900, per=49.28%, avg=2452.00, stdev=965.78, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (msec) : 100=25.00%, 250=8.33%, 500=41.67%, 750=16.67%, 2000=8.33% cpu : usr=0.00%, sys=3.32%, ctx=123, 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=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=178355: Thu Aug 6 06:31:47 2026 read: IOPS=0, BW=902KiB/s (924kB/s)(5120KiB/5677msec) clat (msec): min=64, max=686, avg=320.82, stdev=251.36 lat (msec): min=64, max=686, avg=320.82, stdev=251.36 clat percentiles (msec): | 1.00th=[ 65], 5.00th=[ 65], 10.00th=[ 65], 20.00th=[ 65], | 30.00th=[ 113], 40.00th=[ 113], 50.00th=[ 321], 60.00th=[ 321], | 70.00th=[ 418], 80.00th=[ 418], 90.00th=[ 684], 95.00th=[ 684], | 99.00th=[ 684], 99.50th=[ 684], 99.90th=[ 684], 99.95th=[ 684], | 99.99th=[ 684] bw ( KiB/s): min= 1878, max= 4071, per=74.44%, avg=2645.67, stdev=1235.60, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=1, BW=1263KiB/s (1293kB/s)(7168KiB/5677msec); 0 zone resets clat (msec): min=146, max=1134, avg=528.12, stdev=383.92 lat (msec): min=146, max=1135, avg=528.37, stdev=383.93 clat percentiles (msec): | 1.00th=[ 146], 5.00th=[ 146], 10.00th=[ 146], 20.00th=[ 157], | 30.00th=[ 288], 40.00th=[ 288], 50.00th=[ 485], 60.00th=[ 550], | 70.00th=[ 550], 80.00th=[ 944], 90.00th=[ 1133], 95.00th=[ 1133], | 99.00th=[ 1133], 99.50th=[ 1133], 99.90th=[ 1133], 99.95th=[ 1133], | 99.99th=[ 1133] bw ( KiB/s): min= 1787, max= 2035, per=38.65%, avg=1923.40, stdev=89.20, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 100=8.33%, 250=25.00%, 500=33.33%, 750=16.67%, 1000=8.33% lat (msec) : 2000=8.33% cpu : usr=0.00%, sys=3.22%, ctx=91, 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=3555KiB/s (3640kB/s), 355KiB/s-1645KiB/s (364kB/s-1685kB/s), io=20.0MiB (20.0MB), run=4357-5761msec WRITE: bw=4977KiB/s (5096kB/s), 1175KiB/s-1777KiB/s (1203kB/s-1820kB/s), io=28.0MiB (29.4MB), run=4357-5761msec 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=178361: Thu Aug 6 06:32:03 2026 read: IOPS=0, BW=4046KiB/s (4143kB/s)(12.0MiB/3037msec) clat (msec): min=401, max=1420, avg=1010.52, stdev=537.56 lat (msec): min=401, max=1420, avg=1010.52, stdev=537.56 clat percentiles (msec): | 1.00th=[ 401], 5.00th=[ 401], 10.00th=[ 401], 20.00th=[ 401], | 30.00th=[ 401], 40.00th=[ 1217], 50.00th=[ 1217], 60.00th=[ 1217], | 70.00th=[ 1418], 80.00th=[ 1418], 90.00th=[ 1418], 95.00th=[ 1418], | 99.00th=[ 1418], 99.50th=[ 1418], 99.90th=[ 1418], 99.95th=[ 1418], | 99.99th=[ 1418] bw ( KiB/s): min= 6860, max= 8192, per=100.00%, avg=7526.00, stdev=941.87, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.00%, sys=2.40%, ctx=37, 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=178362: Thu Aug 6 06:32:03 2026 read: IOPS=0, BW=1095KiB/s (1121kB/s)(4096KiB/3742msec) clat (nsec): min=255177k, max=255177k, avg=255177177.00, stdev= 0.00 lat (nsec): min=255180k, max=255180k, avg=255179540.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 255], 5.00th=[ 255], 10.00th=[ 255], 20.00th=[ 255], | 30.00th=[ 255], 40.00th=[ 255], 50.00th=[ 255], 60.00th=[ 255], | 70.00th=[ 255], 80.00th=[ 255], 90.00th=[ 255], 95.00th=[ 255], | 99.00th=[ 255], 99.50th=[ 255], 99.90th=[ 255], 99.95th=[ 255], | 99.99th=[ 255] bw ( KiB/s): min= 5557, max= 5557, per=100.00%, avg=5557.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2189KiB/s (2242kB/s)(8192KiB/3742msec); 0 zone resets clat (msec): min=429, max=2934, avg=1682.45, stdev=1771.26 lat (msec): min=430, max=2935, avg=1682.75, stdev=1771.28 clat percentiles (msec): | 1.00th=[ 430], 5.00th=[ 430], 10.00th=[ 430], 20.00th=[ 430], | 30.00th=[ 430], 40.00th=[ 430], 50.00th=[ 430], 60.00th=[ 2937], | 70.00th=[ 2937], 80.00th=[ 2937], 90.00th=[ 2937], 95.00th=[ 2937], | 99.00th=[ 2937], 99.50th=[ 2937], 99.90th=[ 2937], 99.95th=[ 2937], | 99.99th=[ 2937] bw ( KiB/s): min= 7984, max= 7984, per=92.76%, avg=7984.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=66.67%, >=2000=33.33% cpu : usr=0.00%, sys=3.37%, ctx=74, 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=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=178363: Thu Aug 6 06:32:03 2026 write: IOPS=0, BW=3228KiB/s (3305kB/s)(12.0MiB/3807msec); 0 zone resets clat (msec): min=850, max=1850, avg=1224.22, stdev=545.98 lat (msec): min=851, max=1852, avg=1224.87, stdev=546.58 clat percentiles (msec): | 1.00th=[ 852], 5.00th=[ 852], 10.00th=[ 852], 20.00th=[ 852], | 30.00th=[ 852], 40.00th=[ 969], 50.00th=[ 969], 60.00th=[ 969], | 70.00th=[ 1854], 80.00th=[ 1854], 90.00th=[ 1854], 95.00th=[ 1854], | 99.00th=[ 1854], 99.50th=[ 1854], 99.90th=[ 1854], 99.95th=[ 1854], | 99.99th=[ 1854] bw ( KiB/s): min= 7984, max= 8192, per=93.97%, avg=8088.00, stdev=147.08, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 1000=66.67%, 2000=33.33% cpu : usr=0.05%, sys=2.79%, ctx=57, 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=178364: Thu Aug 6 06:32:03 2026 write: IOPS=1, BW=4774KiB/s (4888kB/s)(12.0MiB/2574msec); 0 zone resets clat (msec): min=327, max=1714, avg=839.10, stdev=761.72 lat (msec): min=327, max=1714, avg=839.36, stdev=761.77 clat percentiles (msec): | 1.00th=[ 326], 5.00th=[ 326], 10.00th=[ 326], 20.00th=[ 326], | 30.00th=[ 326], 40.00th=[ 477], 50.00th=[ 477], 60.00th=[ 477], | 70.00th=[ 1720], 80.00th=[ 1720], 90.00th=[ 1720], 95.00th=[ 1720], | 99.00th=[ 1720], 99.50th=[ 1720], 99.90th=[ 1720], 99.95th=[ 1720], | 99.99th=[ 1720] bw ( KiB/s): min= 6410, max= 7984, per=83.62%, avg=7197.00, stdev=1112.99, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=66.67%, 2000=33.33% cpu : usr=0.08%, sys=3.26%, ctx=34, 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=4378KiB/s (4483kB/s), 1095KiB/s-4046KiB/s (1121kB/s-4143kB/s), io=16.0MiB (16.8MB), run=3037-3742msec WRITE: bw=8607KiB/s (8814kB/s), 2189KiB/s-4774KiB/s (2242kB/s-4888kB/s), io=32.0MiB (33.6MB), run=2574-3807msec rand-rw: (groupid=0, jobs=1): err= 0: pid=178366: Thu Aug 6 06:32:04 2026 read: IOPS=1, BW=4757KiB/s (4871kB/s)(12.0MiB/2583msec) clat (msec): min=778, max=994, avg=860.57, stdev=117.24 lat (msec): min=778, max=994, avg=860.57, stdev=117.24 clat percentiles (msec): | 1.00th=[ 776], 5.00th=[ 776], 10.00th=[ 776], 20.00th=[ 776], | 30.00th=[ 776], 40.00th=[ 810], 50.00th=[ 810], 60.00th=[ 810], | 70.00th=[ 995], 80.00th=[ 995], 90.00th=[ 995], 95.00th=[ 995], | 99.00th=[ 995], 99.50th=[ 995], 99.90th=[ 995], 99.95th=[ 995], | 99.99th=[ 995] bw ( KiB/s): min= 7831, max= 8126, per=100.00%, avg=7978.50, stdev=208.60, 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=10.96%, ctx=153, 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=178367: Thu Aug 6 06:32:04 2026 read: IOPS=0, BW=1295KiB/s (1326kB/s)(4096KiB/3163msec) clat (nsec): min=891535k, max=891535k, avg=891535209.00, stdev= 0.00 lat (nsec): min=891537k, max=891537k, avg=891536824.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 894], 5.00th=[ 894], 10.00th=[ 894], 20.00th=[ 894], | 30.00th=[ 894], 40.00th=[ 894], 50.00th=[ 894], 60.00th=[ 894], | 70.00th=[ 894], 80.00th=[ 894], 90.00th=[ 894], 95.00th=[ 894], | 99.00th=[ 894], 99.50th=[ 894], 99.90th=[ 894], 99.95th=[ 894], | 99.99th=[ 894] bw ( KiB/s): min= 8192, max= 8192, per=100.00%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2590KiB/s (2652kB/s)(8192KiB/3163msec); 0 zone resets clat (msec): min=955, max=1313, avg=1134.81, stdev=253.37 lat (msec): min=955, max=1314, avg=1135.09, stdev=253.33 clat percentiles (msec): | 1.00th=[ 953], 5.00th=[ 953], 10.00th=[ 953], 20.00th=[ 953], | 30.00th=[ 953], 40.00th=[ 953], 50.00th=[ 953], 60.00th=[ 1318], | 70.00th=[ 1318], 80.00th=[ 1318], 90.00th=[ 1318], 95.00th=[ 1318], | 99.00th=[ 1318], 99.50th=[ 1318], 99.90th=[ 1318], 99.95th=[ 1318], | 99.99th=[ 1318] bw ( KiB/s): min= 8175, max= 8175, per=87.13%, avg=8175.00, 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=0.13%, sys=3.61%, ctx=91, 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=178368: Thu Aug 6 06:32:04 2026 write: IOPS=0, BW=3519KiB/s (3603kB/s)(12.0MiB/3492msec); 0 zone resets clat (msec): min=224, max=1997, avg=1163.36, stdev=891.43 lat (msec): min=224, max=1998, avg=1163.59, stdev=891.46 clat percentiles (msec): | 1.00th=[ 224], 5.00th=[ 224], 10.00th=[ 224], 20.00th=[ 224], | 30.00th=[ 224], 40.00th=[ 1267], 50.00th=[ 1267], 60.00th=[ 1267], | 70.00th=[ 2005], 80.00th=[ 2005], 90.00th=[ 2005], 95.00th=[ 2005], | 99.00th=[ 2005], 99.50th=[ 2005], 99.90th=[ 2005], 99.95th=[ 2005], | 99.99th=[ 2005] bw ( KiB/s): min= 8110, max= 8126, per=86.52%, avg=8118.00, stdev=11.31, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 250=33.33%, 2000=66.67% cpu : usr=0.14%, sys=3.44%, ctx=46, 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=178369: Thu Aug 6 06:32:04 2026 write: IOPS=1, BW=4319KiB/s (4423kB/s)(12.0MiB/2845msec); 0 zone resets clat (msec): min=373, max=1552, avg=947.63, stdev=590.12 lat (msec): min=373, max=1552, avg=947.93, stdev=590.10 clat percentiles (msec): | 1.00th=[ 372], 5.00th=[ 372], 10.00th=[ 372], 20.00th=[ 372], | 30.00th=[ 372], 40.00th=[ 919], 50.00th=[ 919], 60.00th=[ 919], | 70.00th=[ 1552], 80.00th=[ 1552], 90.00th=[ 1552], 95.00th=[ 1552], | 99.00th=[ 1552], 99.50th=[ 1552], 99.90th=[ 1552], 99.95th=[ 1552], | 99.99th=[ 1552] bw ( KiB/s): min= 7831, max= 8094, per=84.86%, avg=7962.50, stdev=185.97, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.11%, sys=2.95%, ctx=39, 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=5180KiB/s (5304kB/s), 1295KiB/s-4757KiB/s (1326kB/s-4871kB/s), io=16.0MiB (16.8MB), run=2583-3163msec WRITE: bw=9384KiB/s (9609kB/s), 2590KiB/s-4319KiB/s (2652kB/s-4423kB/s), io=32.0MiB (33.6MB), run=2845-3492msec