== sanity test 398b: DIO and buffer IO race ============== 09:41:22 (1788529282) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 4.6058 s, 10.9 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=145812: Fri Sep 4 09:43:25 2026 read: IOPS=14, BW=56.2KiB/s (57.6kB/s)(5992KiB/106594msec) clat (usec): min=30, max=743882, avg=33967.09, stdev=30934.78 lat (usec): min=30, max=743884, avg=33969.87, stdev=30933.07 clat percentiles (usec): | 1.00th=[ 47], 5.00th=[ 56], 10.00th=[ 310], 20.00th=[ 15401], | 30.00th=[ 19530], 40.00th=[ 23987], 50.00th=[ 27919], 60.00th=[ 33817], | 70.00th=[ 41157], 80.00th=[ 51119], 90.00th=[ 65799], 95.00th=[ 79168], | 99.00th=[111674], 99.50th=[126354], 99.90th=[252707], 99.95th=[742392], | 99.99th=[742392] bw ( KiB/s): min= 7, max= 120, per=25.58%, avg=56.27, stdev=23.74, samples=207 iops : min= 1, max= 30, avg=13.44, stdev= 5.99, samples=207 write: IOPS=14, BW=59.1KiB/s (60.5kB/s)(6296KiB/106594msec); 0 zone resets clat (usec): min=954, max=449926, avg=35179.03, stdev=37831.15 lat (usec): min=956, max=449927, avg=35180.33, stdev=37831.34 clat percentiles (usec): | 1.00th=[ 1037], 5.00th=[ 1139], 10.00th=[ 1532], 20.00th=[ 3294], | 30.00th=[ 6325], 40.00th=[ 15533], 50.00th=[ 25560], 60.00th=[ 34866], | 70.00th=[ 45876], 80.00th=[ 62129], 90.00th=[ 84411], 95.00th=[105382], | 99.00th=[154141], 99.50th=[175113], 99.90th=[320865], 99.95th=[450888], | 99.99th=[450888] bw ( KiB/s): min= 15, max= 157, per=25.49%, avg=58.63, stdev=25.15, samples=209 iops : min= 3, max= 39, avg=14.02, stdev= 6.36, samples=209 lat (usec) : 50=0.94%, 100=3.52%, 250=0.39%, 500=0.07%, 750=0.03% lat (usec) : 1000=0.13% lat (msec) : 2=7.06%, 4=4.59%, 10=6.93%, 20=14.39%, 50=37.37% lat (msec) : 100=20.87%, 250=3.58%, 500=0.10%, 750=0.03% cpu : usr=0.08%, sys=6.47%, ctx=6621, majf=0, minf=18 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=145813: Fri Sep 4 09:43:25 2026 read: IOPS=13, BW=55.4KiB/s (56.8kB/s)(5940KiB/107143msec) clat (usec): min=33, max=325720, avg=34057.39, stdev=27643.59 lat (usec): min=34, max=325721, avg=34058.72, stdev=27643.70 clat percentiles (usec): | 1.00th=[ 49], 5.00th=[ 56], 10.00th=[ 96], 20.00th=[ 14615], | 30.00th=[ 19268], 40.00th=[ 23987], 50.00th=[ 28705], 60.00th=[ 34866], | 70.00th=[ 42206], 80.00th=[ 51119], 90.00th=[ 66847], 95.00th=[ 82314], | 99.00th=[117965], 99.50th=[152044], 99.90th=[278922], 99.95th=[325059], | 99.99th=[325059] bw ( KiB/s): min= 15, max= 136, per=25.12%, avg=55.27, stdev=21.76, samples=210 iops : min= 3, max= 34, avg=13.17, stdev= 5.48, samples=210 write: IOPS=14, BW=59.2KiB/s (60.7kB/s)(6348KiB/107143msec); 0 zone resets clat (usec): min=717, max=739850, avg=35420.19, stdev=41443.01 lat (usec): min=718, max=739851, avg=35422.43, stdev=41442.48 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1205], 10.00th=[ 1663], 20.00th=[ 3425], | 30.00th=[ 7242], 40.00th=[ 15008], 50.00th=[ 25297], 60.00th=[ 35390], | 70.00th=[ 46400], 80.00th=[ 59507], 90.00th=[ 80217], 95.00th=[108528], | 99.00th=[166724], 99.50th=[223347], 99.90th=[291505], 99.95th=[742392], | 99.99th=[742392] bw ( KiB/s): min= 15, max= 135, per=25.73%, avg=59.17, stdev=24.06, samples=209 iops : min= 3, max= 33, avg=14.15, stdev= 6.05, samples=209 lat (usec) : 50=0.81%, 100=4.17%, 250=0.39%, 500=0.23%, 750=0.03% lat (usec) : 1000=0.23% lat (msec) : 2=6.41%, 4=4.92%, 10=7.06%, 20=14.06%, 50=37.47% lat (msec) : 100=20.12%, 250=3.91%, 500=0.16%, 750=0.03% cpu : usr=0.07%, sys=6.18%, ctx=6597, majf=0, minf=18 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145814: Fri Sep 4 09:43:25 2026 read: IOPS=13, BW=55.4KiB/s (56.7kB/s)(6028KiB/108799msec) clat (usec): min=29, max=294590, avg=33663.16, stdev=26925.79 lat (usec): min=29, max=294592, avg=33665.48, stdev=26925.22 clat percentiles (usec): | 1.00th=[ 47], 5.00th=[ 56], 10.00th=[ 141], 20.00th=[ 14615], | 30.00th=[ 18744], 40.00th=[ 22938], 50.00th=[ 27395], 60.00th=[ 33817], | 70.00th=[ 41681], 80.00th=[ 51643], 90.00th=[ 66847], 95.00th=[ 84411], | 99.00th=[120062], 99.50th=[147850], 99.90th=[198181], 99.95th=[295699], | 99.99th=[295699] bw ( KiB/s): min= 15, max= 118, per=24.98%, avg=54.95, stdev=22.66, samples=214 iops : min= 3, max= 29, avg=13.11, stdev= 5.72, samples=214 write: IOPS=14, BW=57.5KiB/s (58.9kB/s)(6260KiB/108799msec); 0 zone resets clat (usec): min=985, max=721322, avg=36861.98, stdev=40876.11 lat (usec): min=986, max=721323, avg=36863.76, stdev=40875.75 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1188], 10.00th=[ 1926], 20.00th=[ 4146], | 30.00th=[ 8094], 40.00th=[ 18220], 50.00th=[ 26870], 60.00th=[ 35914], | 70.00th=[ 47449], 80.00th=[ 61604], 90.00th=[ 86508], 95.00th=[110625], | 99.00th=[154141], 99.50th=[189793], 99.90th=[299893], 99.95th=[717226], | 99.99th=[717226] bw ( KiB/s): min= 7, max= 159, per=24.85%, avg=57.15, stdev=23.14, samples=214 iops : min= 1, max= 39, avg=13.65, stdev= 5.82, samples=214 lat (usec) : 50=0.94%, 100=3.65%, 250=0.68%, 500=0.13%, 750=0.03% lat (usec) : 1000=0.16% lat (msec) : 2=5.21%, 4=4.82%, 10=7.58%, 20=14.78%, 50=37.11% lat (msec) : 100=20.25%, 250=4.49%, 500=0.13%, 750=0.03% cpu : usr=0.06%, sys=6.27%, ctx=6616, 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=145815: Fri Sep 4 09:43:25 2026 read: IOPS=13, BW=55.5KiB/s (56.8kB/s)(6052KiB/109125msec) clat (usec): min=30, max=731444, avg=34990.71, stdev=32691.94 lat (usec): min=31, max=731445, avg=34992.06, stdev=32691.91 clat percentiles (usec): | 1.00th=[ 44], 5.00th=[ 56], 10.00th=[ 258], 20.00th=[ 14877], | 30.00th=[ 19268], 40.00th=[ 23725], 50.00th=[ 28967], 60.00th=[ 34866], | 70.00th=[ 42206], 80.00th=[ 53216], 90.00th=[ 67634], 95.00th=[ 83362], | 99.00th=[125305], 99.50th=[154141], 99.90th=[295699], 99.95th=[734004], | 99.99th=[734004] bw ( KiB/s): min= 7, max= 119, per=24.71%, avg=54.36, stdev=22.39, samples=214 iops : min= 1, max= 29, avg=12.95, stdev= 5.64, samples=214 write: IOPS=14, BW=57.1KiB/s (58.5kB/s)(6236KiB/109125msec); 0 zone resets clat (usec): min=856, max=410944, avg=35814.24, stdev=37781.77 lat (usec): min=858, max=410945, avg=35815.94, stdev=37781.90 clat percentiles (usec): | 1.00th=[ 1029], 5.00th=[ 1188], 10.00th=[ 1598], 20.00th=[ 3556], | 30.00th=[ 7308], 40.00th=[ 16712], 50.00th=[ 26084], 60.00th=[ 35914], | 70.00th=[ 46400], 80.00th=[ 61604], 90.00th=[ 83362], 95.00th=[108528], | 99.00th=[156238], 99.50th=[185598], 99.90th=[238027], 99.95th=[408945], | 99.99th=[408945] bw ( KiB/s): min= 15, max= 152, per=24.47%, avg=56.27, stdev=23.32, samples=214 iops : min= 3, max= 38, avg=13.43, stdev= 5.87, samples=214 lat (usec) : 50=1.14%, 100=3.26%, 250=0.52%, 500=0.16%, 750=0.03% lat (usec) : 1000=0.39% lat (msec) : 2=6.18%, 4=4.59%, 10=7.32%, 20=14.00%, 50=37.40% lat (msec) : 100=20.35%, 250=4.56%, 500=0.07%, 750=0.03% cpu : usr=0.07%, sys=6.11%, ctx=6695, 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=220KiB/s (225kB/s), 55.4KiB/s-56.2KiB/s (56.7kB/s-57.6kB/s), io=23.4MiB (24.6MB), run=106594-109125msec WRITE: bw=230KiB/s (236kB/s), 57.1KiB/s-59.2KiB/s (58.5kB/s-60.7kB/s), io=24.6MiB (25.7MB), run=106594-109125msec fio: pid=145820, err=5/file:backend.c:481, func=full resid, error=Input/output error rand-rw: (groupid=0, jobs=1): err= 0: pid=145817: Fri Sep 4 09:44:58 2026 read: IOPS=7, BW=29.9KiB/s (30.6kB/s)(5992KiB/200305msec) clat (msec): min=4, max=776, avg=27.56, stdev=36.66 lat (msec): min=4, max=776, avg=27.56, stdev=36.66 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 9], 20.00th=[ 10], | 30.00th=[ 12], 40.00th=[ 14], 50.00th=[ 16], 60.00th=[ 19], | 70.00th=[ 25], 80.00th=[ 40], 90.00th=[ 63], 95.00th=[ 85], | 99.00th=[ 144], 99.50th=[ 171], 99.90th=[ 401], 99.95th=[ 776], | 99.99th=[ 776] bw ( KiB/s): min= 7, max= 111, per=30.70%, avg=31.62, stdev=22.85, samples=369 iops : min= 1, max= 27, avg= 7.34, stdev= 5.77, samples=369 write: IOPS=7, BW=31.4KiB/s (32.2kB/s)(6296KiB/200305msec); 0 zone resets clat (msec): min=26, max=579, avg=100.97, stdev=59.36 lat (msec): min=26, max=579, avg=100.97, stdev=59.36 clat percentiles (msec): | 1.00th=[ 37], 5.00th=[ 44], 10.00th=[ 50], 20.00th=[ 58], | 30.00th=[ 65], 40.00th=[ 72], 50.00th=[ 82], 60.00th=[ 93], | 70.00th=[ 111], 80.00th=[ 140], 90.00th=[ 184], 95.00th=[ 220], | 99.00th=[ 309], 99.50th=[ 351], 99.90th=[ 485], 99.95th=[ 584], | 99.99th=[ 584] bw ( KiB/s): min= 7, max= 71, per=28.77%, avg=31.07, stdev=16.47, samples=394 iops : min= 1, max= 17, avg= 7.20, stdev= 4.19, samples=394 lat (msec) : 10=10.29%, 20=20.38%, 50=16.44%, 100=32.94%, 250=18.42% lat (msec) : 500=1.46%, 750=0.03%, 1000=0.03% cpu : usr=0.04%, sys=1.37%, ctx=5442, 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=145818: Fri Sep 4 09:44:58 2026 read: IOPS=7, BW=29.6KiB/s (30.3kB/s)(5940KiB/200865msec) clat (msec): min=4, max=792, avg=27.01, stdev=34.98 lat (msec): min=4, max=792, avg=27.02, stdev=34.99 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 10], | 30.00th=[ 12], 40.00th=[ 13], 50.00th=[ 16], 60.00th=[ 19], | 70.00th=[ 26], 80.00th=[ 39], 90.00th=[ 63], 95.00th=[ 86], | 99.00th=[ 144], 99.50th=[ 171], 99.90th=[ 300], 99.95th=[ 793], | 99.99th=[ 793] bw ( KiB/s): min= 7, max= 135, per=31.50%, avg=32.44, stdev=22.00, samples=357 iops : min= 1, max= 33, avg= 7.54, stdev= 5.56, samples=357 write: IOPS=7, BW=31.6KiB/s (32.4kB/s)(6348KiB/200865msec); 0 zone resets clat (msec): min=29, max=630, avg=101.22, stdev=56.75 lat (msec): min=29, max=630, avg=101.22, stdev=56.75 clat percentiles (msec): | 1.00th=[ 36], 5.00th=[ 44], 10.00th=[ 50], 20.00th=[ 59], | 30.00th=[ 67], 40.00th=[ 74], 50.00th=[ 83], 60.00th=[ 94], | 70.00th=[ 111], 80.00th=[ 140], 90.00th=[ 182], 95.00th=[ 220], | 99.00th=[ 284], 99.50th=[ 313], 99.90th=[ 380], 99.95th=[ 634], | 99.99th=[ 634] bw ( KiB/s): min= 7, max= 71, per=28.92%, avg=31.23, stdev=16.12, samples=395 iops : min= 1, max= 17, avg= 7.24, stdev= 4.10, samples=395 lat (msec) : 10=10.81%, 20=19.69%, 50=16.41%, 100=32.85%, 250=18.88% lat (msec) : 500=1.30%, 750=0.03%, 1000=0.03% cpu : usr=0.04%, sys=1.38%, ctx=5439, 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=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=145819: Fri Sep 4 09:44:58 2026 read: IOPS=7, BW=30.2KiB/s (30.9kB/s)(6028KiB/199710msec) clat (msec): min=4, max=506, avg=27.61, stdev=33.50 lat (msec): min=4, max=506, avg=27.62, stdev=33.50 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 9], 20.00th=[ 10], | 30.00th=[ 12], 40.00th=[ 13], 50.00th=[ 16], 60.00th=[ 19], | 70.00th=[ 25], 80.00th=[ 41], 90.00th=[ 63], 95.00th=[ 90], | 99.00th=[ 138], 99.50th=[ 205], 99.90th=[ 363], 99.95th=[ 506], | 99.99th=[ 506] bw ( KiB/s): min= 7, max= 111, per=31.10%, avg=32.03, stdev=21.94, samples=367 iops : min= 1, max= 27, avg= 7.45, stdev= 5.53, samples=367 write: IOPS=7, BW=31.3KiB/s (32.1kB/s)(6260KiB/199710msec); 0 zone resets clat (msec): min=29, max=841, avg=100.95, stdev=60.95 lat (msec): min=29, max=841, avg=100.95, stdev=60.95 clat percentiles (msec): | 1.00th=[ 35], 5.00th=[ 43], 10.00th=[ 49], 20.00th=[ 57], | 30.00th=[ 65], 40.00th=[ 71], 50.00th=[ 81], 60.00th=[ 93], | 70.00th=[ 110], 80.00th=[ 140], 90.00th=[ 188], 95.00th=[ 224], | 99.00th=[ 305], 99.50th=[ 321], 99.90th=[ 393], 99.95th=[ 844], | 99.99th=[ 844] bw ( KiB/s): min= 7, max= 72, per=28.81%, avg=31.11, stdev=17.32, samples=392 iops : min= 1, max= 18, avg= 7.21, stdev= 4.41, samples=392 lat (msec) : 10=11.36%, 20=19.17%, 50=16.99%, 100=32.78%, 250=18.00% lat (msec) : 500=1.63%, 750=0.03%, 1000=0.03% cpu : usr=0.05%, sys=1.37%, ctx=5463, 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= 5 (file:backend.c:481, func=full resid, error=Input/output error): pid=145820: Fri Sep 4 09:44:58 2026 read: IOPS=5, BW=21.2KiB/s (21.7kB/s)(2772KiB/130738msec) clat (msec): min=5, max=511, avg=42.94, stdev=41.97 lat (msec): min=5, max=511, avg=42.95, stdev=41.97 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 20], 40.00th=[ 24], 50.00th=[ 31], 60.00th=[ 41], | 70.00th=[ 52], 80.00th=[ 65], 90.00th=[ 85], 95.00th=[ 111], | 99.00th=[ 188], 99.50th=[ 292], 99.90th=[ 510], 99.95th=[ 510], | 99.99th=[ 510] bw ( KiB/s): min= 7, max= 87, per=22.82%, avg=23.50, stdev=16.30, samples=228 iops : min= 1, max= 21, avg= 5.27, stdev= 4.11, samples=228 write: IOPS=5, BW=22.1KiB/s (22.6kB/s)(2888KiB/130738msec); 0 zone resets clat (msec): min=30, max=883, avg=139.75, stdev=74.80 lat (msec): min=30, max=883, avg=139.76, stdev=74.79 clat percentiles (msec): | 1.00th=[ 43], 5.00th=[ 54], 10.00th=[ 64], 20.00th=[ 80], | 30.00th=[ 94], 40.00th=[ 109], 50.00th=[ 128], 60.00th=[ 146], | 70.00th=[ 165], 80.00th=[ 192], 90.00th=[ 230], 95.00th=[ 259], | 99.00th=[ 368], 99.50th=[ 481], 99.90th=[ 885], 99.95th=[ 885], | 99.99th=[ 885] bw ( KiB/s): min= 7, max= 56, per=20.14%, avg=21.75, stdev=11.39, samples=256 iops : min= 1, max= 14, avg= 4.83, stdev= 2.91, samples=256 lat (msec) : 10=3.53%, 20=12.71%, 50=19.56%, 100=27.19%, 250=33.33% lat (msec) : 500=3.32%, 750=0.21%, 1000=0.07% cpu : usr=0.02%, sys=1.05%, ctx=2052, majf=0, minf=20 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=694,722,0,0 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=103KiB/s (106kB/s), 21.2KiB/s-30.2KiB/s (21.7kB/s-30.9kB/s), io=20.2MiB (21.2MB), run=130738-200865msec WRITE: bw=108KiB/s (111kB/s), 22.1KiB/s-31.6KiB/s (22.6kB/s-32.4kB/s), io=21.3MiB (22.3MB), run=130738-200865msec 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=145868: Fri Sep 4 09:45:28 2026 read: IOPS=17, BW=283KiB/s (289kB/s)(5920KiB/20953msec) clat (usec): min=35, max=158178, avg=27639.04, stdev=25285.21 lat (usec): min=36, max=158179, avg=27640.56, stdev=25284.80 clat percentiles (usec): | 1.00th=[ 39], 5.00th=[ 51], 10.00th=[ 58], 20.00th=[ 76], | 30.00th=[ 14877], 40.00th=[ 19792], 50.00th=[ 23987], 60.00th=[ 30016], | 70.00th=[ 35390], 80.00th=[ 44827], 90.00th=[ 59507], 95.00th=[ 69731], | 99.00th=[121111], 99.50th=[133694], 99.90th=[158335], 99.95th=[158335], | 99.99th=[158335] bw ( KiB/s): min= 124, max= 604, per=25.01%, avg=282.41, stdev=101.36, samples=41 iops : min= 7, max= 37, avg=16.95, stdev= 6.33, samples=41 write: IOPS=18, BW=304KiB/s (311kB/s)(6368KiB/20953msec); 0 zone resets clat (usec): min=1502, max=203041, avg=26846.17, stdev=29885.38 lat (usec): min=1504, max=203042, avg=26848.74, stdev=29884.89 clat percentiles (usec): | 1.00th=[ 1582], 5.00th=[ 2245], 10.00th=[ 3326], 20.00th=[ 4686], | 30.00th=[ 6259], 40.00th=[ 8848], 50.00th=[ 15533], 60.00th=[ 23725], | 70.00th=[ 31589], 80.00th=[ 44827], 90.00th=[ 69731], 95.00th=[ 89654], | 99.00th=[133694], 99.50th=[193987], 99.90th=[202376], 99.95th=[202376], | 99.99th=[202376] bw ( KiB/s): min= 127, max= 636, per=25.57%, avg=303.76, stdev=104.12, samples=41 iops : min= 7, max= 39, avg=18.32, stdev= 6.44, samples=41 lat (usec) : 50=2.08%, 100=8.33%, 250=1.04%, 500=0.26%, 750=0.39% lat (msec) : 2=2.21%, 4=5.47%, 10=14.97%, 20=13.15%, 50=35.16% lat (msec) : 100=14.84%, 250=2.08% cpu : usr=0.08%, sys=8.54%, ctx=1558, 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=145869: Fri Sep 4 09:45:28 2026 read: IOPS=17, BW=277KiB/s (283kB/s)(5744KiB/20768msec) clat (usec): min=33, max=98392, avg=28562.85, stdev=22952.62 lat (usec): min=33, max=98393, avg=28563.88, stdev=22952.60 clat percentiles (usec): | 1.00th=[ 40], 5.00th=[ 55], 10.00th=[ 63], 20.00th=[ 141], | 30.00th=[15926], 40.00th=[22414], 50.00th=[26870], 60.00th=[31851], | 70.00th=[39060], 80.00th=[45876], 90.00th=[60031], 95.00th=[68682], | 99.00th=[90702], 99.50th=[96994], 99.90th=[98042], 99.95th=[98042], | 99.99th=[98042] bw ( KiB/s): min= 45, max= 538, per=24.75%, avg=279.40, stdev=96.13, samples=40 iops : min= 2, max= 33, avg=16.77, stdev= 6.04, samples=40 write: IOPS=19, BW=315KiB/s (323kB/s)(6544KiB/20768msec); 0 zone resets clat (usec): min=1373, max=406549, avg=25596.95, stdev=32441.92 lat (usec): min=1375, max=406550, avg=25599.08, stdev=32442.06 clat percentiles (usec): | 1.00th=[ 1450], 5.00th=[ 1762], 10.00th=[ 2507], 20.00th=[ 3949], | 30.00th=[ 5735], 40.00th=[ 8160], 50.00th=[ 13566], 60.00th=[ 21627], | 70.00th=[ 32900], 80.00th=[ 44303], 90.00th=[ 61080], 95.00th=[ 81265], | 99.00th=[119014], 99.50th=[132645], 99.90th=[404751], 99.95th=[404751], | 99.99th=[404751] bw ( KiB/s): min= 124, max= 694, per=26.73%, avg=317.55, stdev=134.70, samples=40 iops : min= 7, max= 43, avg=19.18, stdev= 8.42, samples=40 lat (usec) : 50=1.04%, 100=7.42%, 250=1.82%, 500=0.26%, 750=0.13% lat (usec) : 1000=0.13% lat (msec) : 2=4.17%, 4=7.29%, 10=13.02%, 20=11.98%, 50=36.33% lat (msec) : 100=15.10%, 250=1.17%, 500=0.13% cpu : usr=0.07%, sys=8.45%, ctx=1490, 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=145870: Fri Sep 4 09:45:28 2026 read: IOPS=18, BW=295KiB/s (302kB/s)(6256KiB/21203msec) clat (usec): min=35, max=248878, avg=27503.24, stdev=26788.13 lat (usec): min=35, max=248879, avg=27511.14, stdev=26781.63 clat percentiles (usec): | 1.00th=[ 42], 5.00th=[ 56], 10.00th=[ 62], 20.00th=[ 93], | 30.00th=[ 12125], 40.00th=[ 20317], 50.00th=[ 25297], 60.00th=[ 30802], | 70.00th=[ 36963], 80.00th=[ 42730], 90.00th=[ 57410], 95.00th=[ 72877], | 99.00th=[105382], 99.50th=[149947], 99.90th=[248513], 99.95th=[248513], | 99.99th=[248513] bw ( KiB/s): min= 62, max= 509, per=26.19%, avg=295.68, stdev=91.03, samples=41 iops : min= 3, max= 31, avg=17.78, stdev= 5.71, samples=41 write: IOPS=17, BW=284KiB/s (291kB/s)(6032KiB/21203msec); 0 zone resets clat (usec): min=1400, max=176473, avg=27603.61, stdev=28220.34 lat (usec): min=1401, max=176476, avg=27605.64, stdev=28220.36 clat percentiles (usec): | 1.00th=[ 1565], 5.00th=[ 2147], 10.00th=[ 2966], 20.00th=[ 4817], | 30.00th=[ 6456], 40.00th=[ 9765], 50.00th=[ 17171], 60.00th=[ 26870], | 70.00th=[ 36439], 80.00th=[ 49546], 90.00th=[ 68682], 95.00th=[ 81265], | 99.00th=[122160], 99.50th=[143655], 99.90th=[177210], 99.95th=[177210], | 99.99th=[177210] bw ( KiB/s): min= 96, max= 573, per=23.58%, avg=280.07, stdev=92.94, samples=41 iops : min= 6, max= 35, avg=16.83, stdev= 5.79, samples=41 lat (usec) : 50=1.04%, 100=10.03%, 250=2.47%, 500=0.26%, 750=0.26% lat (msec) : 2=2.08%, 4=5.21%, 10=13.02%, 20=10.94%, 50=38.15% lat (msec) : 100=14.71%, 250=1.82% cpu : usr=0.08%, sys=8.17%, ctx=1563, 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=145871: Fri Sep 4 09:45:28 2026 read: IOPS=18, BW=290KiB/s (297kB/s)(6032KiB/20804msec) clat (usec): min=36, max=221537, avg=28925.71, stdev=26854.19 lat (usec): min=36, max=221539, avg=28929.34, stdev=26853.18 clat percentiles (usec): | 1.00th=[ 40], 5.00th=[ 55], 10.00th=[ 60], 20.00th=[ 97], | 30.00th=[ 15270], 40.00th=[ 22152], 50.00th=[ 27132], 60.00th=[ 32113], | 70.00th=[ 37487], 80.00th=[ 43779], 90.00th=[ 56361], 95.00th=[ 79168], | 99.00th=[107480], 99.50th=[175113], 99.90th=[221250], 99.95th=[221250], | 99.99th=[221250] bw ( KiB/s): min= 96, max= 544, per=25.16%, avg=284.05, stdev=86.86, samples=40 iops : min= 6, max= 34, avg=17.07, stdev= 5.45, samples=40 write: IOPS=18, BW=301KiB/s (308kB/s)(6256KiB/20804msec); 0 zone resets clat (usec): min=1308, max=209582, avg=25216.48, stdev=28021.36 lat (usec): min=1309, max=209584, avg=25218.90, stdev=28021.03 clat percentiles (usec): | 1.00th=[ 1516], 5.00th=[ 1860], 10.00th=[ 2933], 20.00th=[ 4359], | 30.00th=[ 6128], 40.00th=[ 9372], 50.00th=[ 15008], 60.00th=[ 22152], | 70.00th=[ 29754], 80.00th=[ 42206], 90.00th=[ 63701], 95.00th=[ 83362], | 99.00th=[130548], 99.50th=[139461], 99.90th=[208667], 99.95th=[208667], | 99.99th=[208667] bw ( KiB/s): min= 157, max= 544, per=25.04%, avg=297.43, stdev=86.67, samples=40 iops : min= 9, max= 34, avg=17.90, stdev= 5.49, samples=40 lat (usec) : 50=1.69%, 100=8.46%, 250=1.82%, 500=0.39%, 750=0.13% lat (usec) : 1000=0.13% lat (msec) : 2=2.99%, 4=5.60%, 10=13.28%, 20=12.24%, 50=37.63% lat (msec) : 100=13.80%, 250=1.82% cpu : usr=0.08%, sys=8.26%, ctx=1533, 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=1130KiB/s (1157kB/s), 277KiB/s-295KiB/s (283kB/s-302kB/s), io=23.4MiB (24.5MB), run=20768-21203msec WRITE: bw=1189KiB/s (1217kB/s), 284KiB/s-315KiB/s (291kB/s-323kB/s), io=24.6MiB (25.8MB), run=20768-21203msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145863: Fri Sep 4 09:45:58 2026 read: IOPS=7, BW=117KiB/s (120kB/s)(5920KiB/50475msec) clat (msec): min=5, max=206, avg=29.85, stdev=28.78 lat (msec): min=5, max=206, avg=29.85, stdev=28.78 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 12], | 30.00th=[ 15], 40.00th=[ 18], 50.00th=[ 20], 60.00th=[ 24], | 70.00th=[ 28], 80.00th=[ 41], 90.00th=[ 64], 95.00th=[ 99], | 99.00th=[ 138], 99.50th=[ 165], 99.90th=[ 207], 99.95th=[ 207], | 99.99th=[ 207] bw ( KiB/s): min= 31, max= 347, per=26.66%, avg=123.96, stdev=70.62, samples=94 iops : min= 1, max= 21, avg= 7.05, stdev= 4.49, samples=94 write: IOPS=7, BW=126KiB/s (129kB/s)(6368KiB/50475msec); 0 zone resets clat (msec): min=35, max=454, avg=98.95, stdev=44.52 lat (msec): min=35, max=454, avg=98.95, stdev=44.52 clat percentiles (msec): | 1.00th=[ 41], 5.00th=[ 52], 10.00th=[ 58], 20.00th=[ 66], | 30.00th=[ 74], 40.00th=[ 81], 50.00th=[ 87], 60.00th=[ 96], | 70.00th=[ 109], 80.00th=[ 126], 90.00th=[ 159], 95.00th=[ 188], | 99.00th=[ 245], 99.50th=[ 255], 99.90th=[ 456], 99.95th=[ 456], | 99.99th=[ 456] bw ( KiB/s): min= 31, max= 255, per=25.93%, avg=126.79, stdev=52.48, samples=99 iops : min= 1, max= 15, avg= 7.21, stdev= 3.40, samples=99 lat (msec) : 10=4.69%, 20=19.66%, 50=18.36%, 100=36.72%, 250=20.18% lat (msec) : 500=0.39% cpu : usr=0.04%, sys=1.69%, ctx=1378, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145864: Fri Sep 4 09:45:58 2026 read: IOPS=6, BW=112KiB/s (114kB/s)(5744KiB/51475msec) clat (msec): min=6, max=146, avg=26.67, stdev=22.72 lat (msec): min=6, max=146, avg=26.67, stdev=22.72 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 15], 40.00th=[ 17], 50.00th=[ 18], 60.00th=[ 22], | 70.00th=[ 26], 80.00th=[ 36], 90.00th=[ 58], 95.00th=[ 80], | 99.00th=[ 114], 99.50th=[ 142], 99.90th=[ 146], 99.95th=[ 146], | 99.99th=[ 146] bw ( KiB/s): min= 29, max= 412, per=25.49%, avg=118.54, stdev=79.73, samples=96 iops : min= 1, max= 25, avg= 6.72, stdev= 5.12, samples=96 write: IOPS=7, BW=127KiB/s (130kB/s)(6544KiB/51475msec); 0 zone resets clat (msec): min=35, max=589, avg=102.11, stdev=49.95 lat (msec): min=35, max=589, avg=102.11, stdev=49.95 clat percentiles (msec): | 1.00th=[ 42], 5.00th=[ 52], 10.00th=[ 59], 20.00th=[ 69], | 30.00th=[ 77], 40.00th=[ 84], 50.00th=[ 92], 60.00th=[ 102], | 70.00th=[ 111], 80.00th=[ 127], 90.00th=[ 155], 95.00th=[ 190], | 99.00th=[ 251], 99.50th=[ 262], 99.90th=[ 592], 99.95th=[ 592], | 99.99th=[ 592] bw ( KiB/s): min= 31, max= 288, per=26.13%, avg=127.76, stdev=48.99, samples=101 iops : min= 1, max= 18, avg= 7.29, stdev= 3.17, samples=101 lat (msec) : 10=3.78%, 20=22.66%, 50=16.80%, 100=34.11%, 250=22.01% lat (msec) : 500=0.52%, 750=0.13% cpu : usr=0.03%, sys=1.62%, ctx=1269, 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=145865: Fri Sep 4 09:45:58 2026 read: IOPS=7, BW=125KiB/s (128kB/s)(6256KiB/50048msec) clat (msec): min=6, max=188, avg=26.72, stdev=24.29 lat (msec): min=6, max=188, avg=26.72, stdev=24.29 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 12], | 30.00th=[ 15], 40.00th=[ 16], 50.00th=[ 19], 60.00th=[ 22], | 70.00th=[ 27], 80.00th=[ 35], 90.00th=[ 53], 95.00th=[ 74], | 99.00th=[ 136], 99.50th=[ 159], 99.90th=[ 190], 99.95th=[ 190], | 99.99th=[ 190] bw ( KiB/s): min= 31, max= 384, per=27.77%, avg=129.15, stdev=82.94, samples=96 iops : min= 1, max= 24, avg= 7.38, stdev= 5.27, samples=96 write: IOPS=7, BW=121KiB/s (123kB/s)(6032KiB/50048msec); 0 zone resets clat (msec): min=38, max=308, avg=104.62, stdev=47.00 lat (msec): min=38, max=308, avg=104.62, stdev=47.00 clat percentiles (msec): | 1.00th=[ 45], 5.00th=[ 56], 10.00th=[ 62], 20.00th=[ 70], | 30.00th=[ 78], 40.00th=[ 84], 50.00th=[ 91], 60.00th=[ 101], | 70.00th=[ 112], 80.00th=[ 134], 90.00th=[ 169], 95.00th=[ 197], | 99.00th=[ 264], 99.50th=[ 292], 99.90th=[ 309], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 31, max= 224, per=24.55%, avg=120.07, stdev=47.40, samples=99 iops : min= 1, max= 14, avg= 6.80, stdev= 3.08, samples=99 lat (msec) : 10=4.82%, 20=22.92%, 50=19.27%, 100=31.90%, 250=20.05% lat (msec) : 500=1.04% cpu : usr=0.06%, sys=1.58%, ctx=1396, 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=145866: Fri Sep 4 09:45:58 2026 read: IOPS=7, BW=118KiB/s (121kB/s)(6032KiB/50989msec) clat (msec): min=6, max=305, avg=29.44, stdev=30.91 lat (msec): min=6, max=305, avg=29.44, stdev=30.91 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 12], | 30.00th=[ 14], 40.00th=[ 16], 50.00th=[ 19], 60.00th=[ 23], | 70.00th=[ 27], 80.00th=[ 35], 90.00th=[ 68], 95.00th=[ 99], | 99.00th=[ 138], 99.50th=[ 161], 99.90th=[ 305], 99.95th=[ 305], | 99.99th=[ 305] bw ( KiB/s): min= 29, max= 352, per=26.22%, avg=121.94, stdev=74.02, samples=97 iops : min= 1, max= 22, avg= 6.90, stdev= 4.74, samples=97 write: IOPS=7, BW=123KiB/s (126kB/s)(6256KiB/50989msec); 0 zone resets clat (msec): min=38, max=281, avg=101.67, stdev=43.78 lat (msec): min=38, max=281, avg=101.68, stdev=43.78 clat percentiles (msec): | 1.00th=[ 45], 5.00th=[ 53], 10.00th=[ 58], 20.00th=[ 69], | 30.00th=[ 77], 40.00th=[ 83], 50.00th=[ 91], 60.00th=[ 101], | 70.00th=[ 111], 80.00th=[ 128], 90.00th=[ 161], 95.00th=[ 201], | 99.00th=[ 264], 99.50th=[ 271], 99.90th=[ 284], 99.95th=[ 284], | 99.99th=[ 284] bw ( KiB/s): min= 31, max= 253, per=25.03%, avg=122.38, stdev=49.66, samples=101 iops : min= 1, max= 15, avg= 6.94, stdev= 3.23, samples=101 lat (msec) : 10=4.82%, 20=21.48%, 50=17.19%, 100=33.72%, 250=22.14% lat (msec) : 500=0.65% cpu : usr=0.05%, sys=1.73%, ctx=1452, 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=465KiB/s (476kB/s), 112KiB/s-125KiB/s (114kB/s-128kB/s), io=23.4MiB (24.5MB), run=50048-51475msec WRITE: bw=490KiB/s (501kB/s), 121KiB/s-127KiB/s (123kB/s-130kB/s), io=24.6MiB (25.8MB), run=50048-51475msec 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=145885: Fri Sep 4 09:46:09 2026 read: IOPS=2, BW=2073KiB/s (2123kB/s)(7168KiB/3458msec) clat (msec): min=64, max=353, avg=191.85, stdev=102.31 lat (msec): min=64, max=353, avg=191.85, stdev=102.31 clat percentiles (msec): | 1.00th=[ 65], 5.00th=[ 65], 10.00th=[ 65], 20.00th=[ 112], | 30.00th=[ 126], 40.00th=[ 126], 50.00th=[ 174], 60.00th=[ 245], | 70.00th=[ 245], 80.00th=[ 271], 90.00th=[ 355], 95.00th=[ 355], | 99.00th=[ 355], 99.50th=[ 355], 99.90th=[ 355], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 1973, max= 4071, per=61.34%, avg=2952.50, stdev=1100.20, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 write: IOPS=1, BW=1481KiB/s (1516kB/s)(5120KiB/3458msec); 0 zone resets clat (msec): min=149, max=795, avg=398.54, stdev=249.44 lat (msec): min=149, max=795, avg=398.63, stdev=249.43 clat percentiles (msec): | 1.00th=[ 150], 5.00th=[ 150], 10.00th=[ 150], 20.00th=[ 150], | 30.00th=[ 275], 40.00th=[ 275], 50.00th=[ 305], 60.00th=[ 305], | 70.00th=[ 468], 80.00th=[ 468], 90.00th=[ 793], 95.00th=[ 793], | 99.00th=[ 793], 99.50th=[ 793], 99.90th=[ 793], 99.95th=[ 793], | 99.99th=[ 793] bw ( KiB/s): min= 1973, max= 4087, per=40.11%, avg=2702.67, stdev=1199.45, samples=3 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=3 lat (msec) : 100=8.33%, 250=41.67%, 500=41.67%, 1000=8.33% cpu : usr=0.00%, sys=8.48%, ctx=176, 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=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=145886: Fri Sep 4 09:46:09 2026 read: IOPS=0, BW=499KiB/s (511kB/s)(2048KiB/4102msec) clat (msec): min=94, max=141, avg=117.93, stdev=32.89 lat (msec): min=94, max=141, avg=117.93, stdev=32.89 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 95], 10.00th=[ 95], 20.00th=[ 95], | 30.00th=[ 95], 40.00th=[ 95], 50.00th=[ 95], 60.00th=[ 142], | 70.00th=[ 142], 80.00th=[ 142], 90.00th=[ 142], 95.00th=[ 142], | 99.00th=[ 142], 99.50th=[ 142], 99.90th=[ 142], 99.95th=[ 142], | 99.99th=[ 142] bw ( KiB/s): min= 1805, max= 2048, per=40.03%, avg=1926.50, stdev=171.83, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 write: IOPS=2, BW=2496KiB/s (2556kB/s)(10.0MiB/4102msec); 0 zone resets clat (msec): min=126, max=862, avg=374.63, stdev=220.95 lat (msec): min=127, max=862, avg=374.74, stdev=220.97 clat percentiles (msec): | 1.00th=[ 128], 5.00th=[ 128], 10.00th=[ 128], 20.00th=[ 174], | 30.00th=[ 180], 40.00th=[ 209], 50.00th=[ 384], 60.00th=[ 393], | 70.00th=[ 422], 80.00th=[ 485], 90.00th=[ 514], 95.00th=[ 860], | 99.00th=[ 860], 99.50th=[ 860], 99.90th=[ 860], 99.95th=[ 860], | 99.99th=[ 860] bw ( KiB/s): min= 1805, max= 4096, per=39.33%, avg=2650.17, stdev=1066.31, samples=6 iops : min= 1, max= 4, avg= 1.83, stdev= 1.33, samples=6 lat (msec) : 100=8.33%, 250=41.67%, 500=33.33%, 750=8.33%, 1000=8.33% cpu : usr=0.05%, sys=7.02%, ctx=138, 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=145887: Fri Sep 4 09:46:09 2026 read: IOPS=1, BW=1444KiB/s (1479kB/s)(6144KiB/4255msec) clat (msec): min=61, max=574, avg=271.57, stdev=204.25 lat (msec): min=61, max=574, avg=271.57, stdev=204.26 clat percentiles (msec): | 1.00th=[ 62], 5.00th=[ 62], 10.00th=[ 62], 20.00th=[ 102], | 30.00th=[ 102], 40.00th=[ 142], 50.00th=[ 142], 60.00th=[ 326], | 70.00th=[ 426], 80.00th=[ 426], 90.00th=[ 575], 95.00th=[ 575], | 99.00th=[ 575], 99.50th=[ 575], 99.90th=[ 575], 99.95th=[ 575], | 99.99th=[ 575] bw ( KiB/s): min= 2023, max= 3961, per=52.27%, avg=2515.75, stdev=963.56, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 write: IOPS=1, BW=1444KiB/s (1479kB/s)(6144KiB/4255msec); 0 zone resets clat (msec): min=234, max=555, avg=385.57, stdev=126.35 lat (msec): min=235, max=555, avg=385.77, stdev=126.22 clat percentiles (msec): | 1.00th=[ 236], 5.00th=[ 236], 10.00th=[ 236], 20.00th=[ 284], | 30.00th=[ 284], 40.00th=[ 326], 50.00th=[ 326], 60.00th=[ 418], | 70.00th=[ 502], 80.00th=[ 502], 90.00th=[ 558], 95.00th=[ 558], | 99.00th=[ 558], 99.50th=[ 558], 99.90th=[ 558], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 1973, max= 2043, per=29.99%, avg=2021.00, stdev=27.78, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 100=8.33%, 250=25.00%, 500=50.00%, 750=16.67% cpu : usr=0.00%, sys=6.68%, ctx=119, 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=145888: Fri Sep 4 09:46:09 2026 read: IOPS=1, BW=1493KiB/s (1529kB/s)(5120KiB/3429msec) clat (msec): min=88, max=608, avg=293.76, stdev=214.70 lat (msec): min=88, max=608, avg=293.76, stdev=214.70 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 89], 10.00th=[ 89], 20.00th=[ 89], | 30.00th=[ 136], 40.00th=[ 136], 50.00th=[ 228], 60.00th=[ 228], | 70.00th=[ 409], 80.00th=[ 409], 90.00th=[ 609], 95.00th=[ 609], | 99.00th=[ 609], 99.50th=[ 609], 99.90th=[ 609], 99.95th=[ 609], | 99.99th=[ 609] bw ( KiB/s): min= 2031, max= 4096, per=56.53%, avg=2720.67, stdev=1191.08, samples=3 iops : min= 1, max= 4, avg= 2.00, stdev= 1.73, samples=3 write: IOPS=2, BW=2090KiB/s (2141kB/s)(7168KiB/3429msec); 0 zone resets clat (msec): min=161, max=502, avg=277.07, stdev=126.25 lat (msec): min=161, max=504, avg=277.50, stdev=126.75 clat percentiles (msec): | 1.00th=[ 163], 5.00th=[ 163], 10.00th=[ 163], 20.00th=[ 165], | 30.00th=[ 194], 40.00th=[ 194], 50.00th=[ 228], 60.00th=[ 342], | 70.00th=[ 342], 80.00th=[ 351], 90.00th=[ 502], 95.00th=[ 502], | 99.00th=[ 502], 99.50th=[ 502], 99.90th=[ 502], 99.95th=[ 502], | 99.99th=[ 502] bw ( KiB/s): min= 3690, max= 4087, per=57.99%, avg=3907.67, stdev=201.26, samples=3 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=3 lat (msec) : 100=8.33%, 250=50.00%, 500=25.00%, 750=16.67% cpu : usr=0.00%, sys=5.75%, ctx=120, 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=4813KiB/s (4929kB/s), 499KiB/s-2073KiB/s (511kB/s-2123kB/s), io=20.0MiB (20.0MB), run=3429-4255msec WRITE: bw=6738KiB/s (6900kB/s), 1444KiB/s-2496KiB/s (1479kB/s-2556kB/s), io=28.0MiB (29.4MB), run=3429-4255msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145890: Fri Sep 4 09:46:10 2026 read: IOPS=2, BW=2453KiB/s (2512kB/s)(7168KiB/2922msec) clat (usec): min=795, max=484875, avg=172738.19, stdev=164996.16 lat (usec): min=796, max=484876, avg=172739.53, stdev=164996.06 clat percentiles (usec): | 1.00th=[ 799], 5.00th=[ 799], 10.00th=[ 799], 20.00th=[ 1680], | 30.00th=[127402], 40.00th=[127402], 50.00th=[168821], 60.00th=[181404], | 70.00th=[181404], 80.00th=[242222], 90.00th=[484443], 95.00th=[484443], | 99.00th=[484443], 99.50th=[484443], 99.90th=[484443], 99.95th=[484443], | 99.99th=[484443] bw ( KiB/s): min= 2039, max= 3930, per=59.12%, avg=2949.25, stdev=1050.43, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 write: IOPS=1, BW=1752KiB/s (1794kB/s)(5120KiB/2922msec); 0 zone resets clat (msec): min=194, max=428, avg=309.20, stdev=103.30 lat (msec): min=194, max=428, avg=309.28, stdev=103.29 clat percentiles (msec): | 1.00th=[ 194], 5.00th=[ 194], 10.00th=[ 194], 20.00th=[ 194], | 30.00th=[ 207], 40.00th=[ 207], 50.00th=[ 351], 60.00th=[ 351], | 70.00th=[ 368], 80.00th=[ 368], 90.00th=[ 430], 95.00th=[ 430], | 99.00th=[ 430], 99.50th=[ 430], 99.90th=[ 430], 99.95th=[ 430], | 99.99th=[ 430] bw ( KiB/s): min= 2039, max= 5818, per=56.25%, avg=3928.50, stdev=2672.16, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 lat (usec) : 1000=8.33% lat (msec) : 2=8.33%, 250=50.00%, 500=33.33% cpu : usr=0.00%, sys=23.90%, ctx=243, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145891: Fri Sep 4 09:46:10 2026 read: IOPS=0, BW=499KiB/s (511kB/s)(2048KiB/4105msec) clat (usec): min=669, max=222511, avg=111590.64, stdev=156865.88 lat (usec): min=670, max=222513, avg=111592.15, stdev=156866.58 clat percentiles (usec): | 1.00th=[ 668], 5.00th=[ 668], 10.00th=[ 668], 20.00th=[ 668], | 30.00th=[ 668], 40.00th=[ 668], 50.00th=[ 668], 60.00th=[223347], | 70.00th=[223347], 80.00th=[223347], 90.00th=[223347], 95.00th=[223347], | 99.00th=[223347], 99.50th=[223347], 99.90th=[223347], 99.95th=[223347], | 99.99th=[223347] bw ( KiB/s): min= 1961, max= 2035, per=40.05%, avg=1998.00, stdev=52.33, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2495KiB/s (2554kB/s)(10.0MiB/4105msec); 0 zone resets clat (msec): min=110, max=757, avg=367.10, stdev=207.51 lat (msec): min=112, max=757, avg=367.29, stdev=207.34 clat percentiles (msec): | 1.00th=[ 111], 5.00th=[ 111], 10.00th=[ 111], 20.00th=[ 182], | 30.00th=[ 184], 40.00th=[ 184], 50.00th=[ 296], 60.00th=[ 447], | 70.00th=[ 498], 80.00th=[ 506], 90.00th=[ 510], 95.00th=[ 760], | 99.00th=[ 760], 99.50th=[ 760], 99.90th=[ 760], 99.95th=[ 760], | 99.99th=[ 760] bw ( KiB/s): min= 1939, max= 6095, per=42.94%, avg=2998.67, stdev=1702.37, samples=6 iops : min= 1, max= 5, avg= 2.00, stdev= 1.67, samples=6 lat (usec) : 750=8.33% lat (msec) : 250=41.67%, 500=25.00%, 750=16.67%, 1000=8.33% cpu : usr=0.00%, sys=19.37%, ctx=156, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145892: Fri Sep 4 09:46:10 2026 read: IOPS=1, BW=1884KiB/s (1929kB/s)(6144KiB/3262msec) clat (usec): min=462, max=373474, avg=197692.48, stdev=118635.58 lat (usec): min=464, max=373476, avg=197693.80, stdev=118635.68 clat percentiles (usec): | 1.00th=[ 461], 5.00th=[ 461], 10.00th=[ 461], 20.00th=[191890], | 30.00th=[191890], 40.00th=[196084], 50.00th=[196084], 60.00th=[206570], | 70.00th=[219153], 80.00th=[219153], 90.00th=[375391], 95.00th=[375391], | 99.00th=[375391], 99.50th=[375391], 99.90th=[375391], 99.95th=[375391], | 99.99th=[375391] bw ( KiB/s): min= 1961, max= 4087, per=66.67%, avg=3326.00, stdev=1184.73, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=1, BW=1884KiB/s (1929kB/s)(6144KiB/3262msec); 0 zone resets clat (msec): min=153, max=568, avg=323.93, stdev=175.22 lat (msec): min=153, max=568, avg=324.11, stdev=175.16 clat percentiles (msec): | 1.00th=[ 155], 5.00th=[ 155], 10.00th=[ 155], 20.00th=[ 205], | 30.00th=[ 205], 40.00th=[ 226], 50.00th=[ 226], 60.00th=[ 275], | 70.00th=[ 518], 80.00th=[ 518], 90.00th=[ 567], 95.00th=[ 567], | 99.00th=[ 567], 99.50th=[ 567], 99.90th=[ 567], 99.95th=[ 567], | 99.99th=[ 567] bw ( KiB/s): min= 1939, max= 3923, per=42.03%, avg=2935.50, stdev=1135.70, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 lat (usec) : 500=8.33% lat (msec) : 250=58.33%, 500=16.67%, 750=16.67% cpu : usr=0.00%, sys=25.24%, ctx=300, 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=145893: Fri Sep 4 09:46:10 2026 read: IOPS=1, BW=1389KiB/s (1423kB/s)(5120KiB/3685msec) clat (usec): min=502, max=315585, avg=182440.10, stdev=165224.98 lat (usec): min=503, max=315587, avg=182441.40, stdev=165225.11 clat percentiles (usec): | 1.00th=[ 502], 5.00th=[ 502], 10.00th=[ 502], 20.00th=[ 502], | 30.00th=[ 2868], 40.00th=[ 2868], 50.00th=[291505], 60.00th=[291505], | 70.00th=[299893], 80.00th=[299893], 90.00th=[316670], 95.00th=[316670], | 99.00th=[316670], 99.50th=[316670], 99.90th=[316670], 99.95th=[316670], | 99.99th=[316670] bw ( KiB/s): min= 1961, max= 4063, per=53.90%, avg=2689.00, stdev=1190.63, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=1, BW=1945KiB/s (1992kB/s)(7168KiB/3685msec); 0 zone resets clat (msec): min=117, max=907, avg=388.21, stdev=298.50 lat (msec): min=117, max=907, avg=388.32, stdev=298.58 clat percentiles (msec): | 1.00th=[ 118], 5.00th=[ 118], 10.00th=[ 118], 20.00th=[ 174], | 30.00th=[ 182], 40.00th=[ 182], 50.00th=[ 215], 60.00th=[ 481], | 70.00th=[ 481], 80.00th=[ 642], 90.00th=[ 911], 95.00th=[ 911], | 99.00th=[ 911], 99.50th=[ 911], 99.90th=[ 911], 99.95th=[ 911], | 99.99th=[ 911] bw ( KiB/s): min= 1965, max= 4063, per=34.75%, avg=2426.60, stdev=915.31, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (usec) : 750=8.33% lat (msec) : 4=8.33%, 250=33.33%, 500=33.33%, 750=8.33%, 1000=8.33% cpu : usr=0.00%, sys=18.92%, ctx=195, 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=4989KiB/s (5109kB/s), 499KiB/s-2453KiB/s (511kB/s-2512kB/s), io=20.0MiB (20.0MB), run=2922-4105msec WRITE: bw=6985KiB/s (7152kB/s), 1752KiB/s-2495KiB/s (1794kB/s-2554kB/s), io=28.0MiB (29.4MB), run=2922-4105msec 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=145901: Fri Sep 4 09:46:22 2026 read: IOPS=1, BW=5585KiB/s (5720kB/s)(12.0MiB/2200msec) clat (msec): min=276, max=1047, avg=683.16, stdev=386.97 lat (msec): min=276, max=1047, avg=683.16, stdev=386.97 clat percentiles (msec): | 1.00th=[ 279], 5.00th=[ 279], 10.00th=[ 279], 20.00th=[ 279], | 30.00th=[ 279], 40.00th=[ 726], 50.00th=[ 726], 60.00th=[ 726], | 70.00th=[ 1045], 80.00th=[ 1045], 90.00th=[ 1045], 95.00th=[ 1045], | 99.00th=[ 1045], 99.50th=[ 1045], 99.90th=[ 1045], 99.95th=[ 1045], | 99.99th=[ 1045] bw ( KiB/s): min= 7907, max= 8192, per=100.00%, avg=8049.50, stdev=201.53, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 500=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.00%, sys=8.41%, ctx=59, 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=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=145903: Fri Sep 4 09:46:22 2026 read: IOPS=0, BW=1794KiB/s (1837kB/s)(4096KiB/2283msec) clat (nsec): min=286191k, max=286191k, avg=286191199.00, stdev= 0.00 lat (nsec): min=286194k, max=286194k, avg=286193571.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 288], 5.00th=[ 288], 10.00th=[ 288], 20.00th=[ 288], | 30.00th=[ 288], 40.00th=[ 288], 50.00th=[ 288], 60.00th=[ 288], | 70.00th=[ 288], 80.00th=[ 288], 90.00th=[ 288], 95.00th=[ 288], | 99.00th=[ 288], 99.50th=[ 288], 99.90th=[ 288], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 7627, max= 7627, per=100.00%, avg=7627.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3588KiB/s (3674kB/s)(8192KiB/2283msec); 0 zone resets clat (msec): min=799, max=1117, avg=958.77, stdev=224.92 lat (msec): min=800, max=1120, avg=960.35, stdev=226.61 clat percentiles (msec): | 1.00th=[ 802], 5.00th=[ 802], 10.00th=[ 802], 20.00th=[ 802], | 30.00th=[ 802], 40.00th=[ 802], 50.00th=[ 802], 60.00th=[ 1116], | 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= 8192, max= 8192, per=69.10%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=6.44%, ctx=77, 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=145905: Fri Sep 4 09:46:22 2026 write: IOPS=1, BW=4446KiB/s (4552kB/s)(12.0MiB/2764msec); 0 zone resets clat (msec): min=230, max=1247, avg=879.22, stdev=563.28 lat (msec): min=231, max=1248, avg=879.56, stdev=563.30 clat percentiles (msec): | 1.00th=[ 232], 5.00th=[ 232], 10.00th=[ 232], 20.00th=[ 232], | 30.00th=[ 232], 40.00th=[ 1167], 50.00th=[ 1167], 60.00th=[ 1167], | 70.00th=[ 1250], 80.00th=[ 1250], 90.00th=[ 1250], 95.00th=[ 1250], | 99.00th=[ 1250], 99.50th=[ 1250], 99.90th=[ 1250], 99.95th=[ 1250], | 99.99th=[ 1250] bw ( KiB/s): min= 8143, max= 8192, per=68.89%, avg=8167.50, stdev=34.65, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 250=33.33%, 2000=66.67% cpu : usr=0.00%, sys=6.44%, ctx=56, 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 rand-rw: (groupid=0, jobs=1): err= 0: pid=145907: Fri Sep 4 09:46:22 2026 write: IOPS=1, BW=5982KiB/s (6126kB/s)(12.0MiB/2054msec); 0 zone resets clat (msec): min=516, max=753, avg=652.50, stdev=122.33 lat (msec): min=516, max=754, avg=652.86, stdev=122.35 clat percentiles (msec): | 1.00th=[ 518], 5.00th=[ 518], 10.00th=[ 518], 20.00th=[ 518], | 30.00th=[ 518], 40.00th=[ 684], 50.00th=[ 684], 60.00th=[ 684], | 70.00th=[ 751], 80.00th=[ 751], 90.00th=[ 751], 95.00th=[ 751], | 99.00th=[ 751], 99.50th=[ 751], 99.90th=[ 751], 99.95th=[ 751], | 99.99th=[ 751] bw ( KiB/s): min= 8192, max= 8192, per=69.10%, avg=8192.00, stdev= 0.00, samples=2 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=2 lat (msec) : 750=66.67%, 1000=33.33% cpu : usr=0.00%, sys=7.70%, ctx=82, 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 Run status group 0 (all jobs): READ: bw=7177KiB/s (7349kB/s), 1794KiB/s-5585KiB/s (1837kB/s-5720kB/s), io=16.0MiB (16.8MB), run=2200-2283msec WRITE: bw=11.6MiB/s (12.1MB/s), 3588KiB/s-5982KiB/s (3674kB/s-6126kB/s), io=32.0MiB (33.6MB), run=2054-2764msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145900: Fri Sep 4 09:46:22 2026 read: IOPS=1, BW=6337KiB/s (6489kB/s)(12.0MiB/1939msec) clat (msec): min=532, max=679, avg=615.88, stdev=75.53 lat (msec): min=532, max=679, avg=615.88, stdev=75.53 clat percentiles (msec): | 1.00th=[ 531], 5.00th=[ 531], 10.00th=[ 531], 20.00th=[ 531], | 30.00th=[ 531], 40.00th=[ 634], 50.00th=[ 634], 60.00th=[ 634], | 70.00th=[ 684], 80.00th=[ 684], 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= 8015, max= 8192, per=100.00%, avg=8103.50, stdev=125.16, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 750=100.00% cpu : usr=0.00%, sys=19.81%, ctx=396, 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=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=145902: Fri Sep 4 09:46:22 2026 read: IOPS=0, BW=1513KiB/s (1549kB/s)(4096KiB/2707msec) clat (nsec): min=653213k, max=653213k, avg=653212897.00, stdev= 0.00 lat (nsec): min=653215k, max=653215k, avg=653215266.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 651], 5.00th=[ 651], 10.00th=[ 651], 20.00th=[ 651], | 30.00th=[ 651], 40.00th=[ 651], 50.00th=[ 651], 60.00th=[ 651], | 70.00th=[ 651], 80.00th=[ 651], 90.00th=[ 651], 95.00th=[ 651], | 99.00th=[ 651], 99.50th=[ 651], 99.90th=[ 651], 99.95th=[ 651], | 99.99th=[ 651] 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=3026KiB/s (3099kB/s)(8192KiB/2707msec); 0 zone resets clat (msec): min=672, max=1254, avg=963.69, stdev=411.50 lat (msec): min=673, max=1260, avg=966.98, stdev=415.74 clat percentiles (msec): | 1.00th=[ 676], 5.00th=[ 676], 10.00th=[ 676], 20.00th=[ 676], | 30.00th=[ 676], 40.00th=[ 676], 50.00th=[ 676], 60.00th=[ 1250], | 70.00th=[ 1250], 80.00th=[ 1250], 90.00th=[ 1250], 95.00th=[ 1250], | 99.00th=[ 1250], 99.50th=[ 1250], 99.90th=[ 1250], 99.95th=[ 1250], | 99.99th=[ 1250] bw ( KiB/s): min= 8015, max= 8015, per=79.15%, avg=8015.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=66.67%, 2000=33.33% cpu : usr=0.00%, sys=5.21%, ctx=120, 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=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=145904: Fri Sep 4 09:46:22 2026 write: IOPS=0, BW=3797KiB/s (3888kB/s)(12.0MiB/3236msec); 0 zone resets clat (msec): min=261, max=1490, avg=1030.38, stdev=670.05 lat (msec): min=262, max=1491, avg=1030.77, stdev=670.05 clat percentiles (msec): | 1.00th=[ 262], 5.00th=[ 262], 10.00th=[ 262], 20.00th=[ 262], | 30.00th=[ 262], 40.00th=[ 1334], 50.00th=[ 1334], 60.00th=[ 1334], | 70.00th=[ 1485], 80.00th=[ 1485], 90.00th=[ 1485], 95.00th=[ 1485], | 99.00th=[ 1485], 99.50th=[ 1485], 99.90th=[ 1485], 99.95th=[ 1485], | 99.99th=[ 1485] bw ( KiB/s): min= 8094, max= 8143, per=80.17%, avg=8118.50, stdev=34.65, 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=3.15%, ctx=46, 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 rand-rw: (groupid=0, jobs=1): err= 0: pid=145906: Fri Sep 4 09:46:22 2026 write: IOPS=1, BW=6823KiB/s (6987kB/s)(12.0MiB/1801msec); 0 zone resets clat (msec): min=336, max=985, avg=559.97, stdev=368.30 lat (msec): min=337, max=985, avg=560.34, stdev=368.13 clat percentiles (msec): | 1.00th=[ 338], 5.00th=[ 338], 10.00th=[ 338], 20.00th=[ 338], | 30.00th=[ 338], 40.00th=[ 359], 50.00th=[ 359], 60.00th=[ 359], | 70.00th=[ 986], 80.00th=[ 986], 90.00th=[ 986], 95.00th=[ 986], | 99.00th=[ 986], 99.50th=[ 986], 99.90th=[ 986], 99.95th=[ 986], | 99.99th=[ 986] bw ( KiB/s): min= 7074, max= 8192, per=75.38%, avg=7633.00, stdev=790.55, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 500=66.67%, 1000=33.33% cpu : usr=0.00%, sys=9.78%, ctx=81, 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=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=6052KiB/s (6198kB/s), 1513KiB/s-6337KiB/s (1549kB/s-6489kB/s), io=16.0MiB (16.8MB), run=1939-2707msec WRITE: bw=9.89MiB/s (10.4MB/s), 3026KiB/s-6823KiB/s (3099kB/s-6987kB/s), io=32.0MiB (33.6MB), run=1801-3236msec