== sanity test 398b: DIO and buffer IO race ============== 04:36:54 (1787560614) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 5.83638 s, 8.6 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=144029: Mon Aug 24 04:39:29 2026 read: IOPS=11, BW=45.4KiB/s (46.5kB/s)(5992KiB/132057msec) clat (usec): min=35, max=901466, avg=45060.32, stdev=40930.53 lat (usec): min=35, max=901468, avg=45062.01, stdev=40930.62 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 69], 10.00th=[ 11207], 20.00th=[ 20841], | 30.00th=[ 26346], 40.00th=[ 31589], 50.00th=[ 38011], 60.00th=[ 44827], | 70.00th=[ 53740], 80.00th=[ 65274], 90.00th=[ 84411], 95.00th=[102237], | 99.00th=[164627], 99.50th=[204473], 99.90th=[387974], 99.95th=[901776], | 99.99th=[901776] bw ( KiB/s): min= 7, max= 110, per=25.30%, avg=45.55, stdev=18.50, samples=256 iops : min= 1, max= 27, avg=10.72, stdev= 4.67, samples=256 write: IOPS=11, BW=47.7KiB/s (48.8kB/s)(6296KiB/132057msec); 0 zone resets clat (usec): min=882, max=375655, avg=40894.42, stdev=43568.64 lat (usec): min=883, max=375656, avg=40896.93, stdev=43568.64 clat percentiles (usec): | 1.00th=[ 1123], 5.00th=[ 1319], 10.00th=[ 1631], 20.00th=[ 4359], | 30.00th=[ 9110], 40.00th=[ 19792], 50.00th=[ 29230], 60.00th=[ 39584], | 70.00th=[ 51643], 80.00th=[ 67634], 90.00th=[ 99091], 95.00th=[123208], | 99.00th=[196084], 99.50th=[217056], 99.90th=[341836], 99.95th=[375391], | 99.99th=[375391] bw ( KiB/s): min= 7, max= 125, per=25.35%, avg=47.65, stdev=21.54, samples=257 iops : min= 1, max= 31, avg=11.26, stdev= 5.44, samples=257 lat (usec) : 50=0.29%, 100=3.48%, 250=0.36%, 500=0.07%, 750=0.07% lat (usec) : 1000=0.13% lat (msec) : 2=6.02%, 4=3.68%, 10=6.51%, 20=9.57%, 50=37.11% lat (msec) : 100=25.07%, 250=7.32%, 500=0.29%, 1000=0.03% cpu : usr=0.08%, sys=4.82%, ctx=6477, 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=144030: Mon Aug 24 04:39:29 2026 read: IOPS=11, BW=45.7KiB/s (46.8kB/s)(5940KiB/129988msec) clat (usec): min=28, max=876151, avg=42527.04, stdev=38012.81 lat (usec): min=28, max=876154, avg=42529.90, stdev=38012.26 clat percentiles (usec): | 1.00th=[ 55], 5.00th=[ 71], 10.00th=[ 10159], 20.00th=[ 20055], | 30.00th=[ 25035], 40.00th=[ 30016], 50.00th=[ 35390], 60.00th=[ 42206], | 70.00th=[ 51119], 80.00th=[ 61604], 90.00th=[ 78119], 95.00th=[ 95945], | 99.00th=[149947], 99.50th=[193987], 99.90th=[350225], 99.95th=[876610], | 99.99th=[876610] bw ( KiB/s): min= 7, max= 109, per=25.67%, avg=46.20, stdev=19.70, samples=250 iops : min= 1, max= 27, avg=10.89, stdev= 4.97, samples=250 write: IOPS=12, BW=48.8KiB/s (50.0kB/s)(6348KiB/129988msec); 0 zone resets clat (usec): min=758, max=448541, avg=41980.12, stdev=45866.05 lat (usec): min=759, max=448542, avg=41983.73, stdev=45867.48 clat percentiles (usec): | 1.00th=[ 1156], 5.00th=[ 1319], 10.00th=[ 1762], 20.00th=[ 4359], | 30.00th=[ 9110], 40.00th=[ 19530], 50.00th=[ 29230], 60.00th=[ 40109], | 70.00th=[ 53740], 80.00th=[ 71828], 90.00th=[ 99091], 95.00th=[124257], | 99.00th=[223347], 99.50th=[256902], 99.90th=[312476], 99.95th=[446694], | 99.99th=[446694] bw ( KiB/s): min= 7, max= 117, per=25.80%, avg=48.50, stdev=22.41, samples=254 iops : min= 1, max= 29, avg=11.47, stdev= 5.66, samples=254 lat (usec) : 50=0.36%, 100=3.42%, 250=0.39%, 500=0.10%, 750=0.07% lat (usec) : 1000=0.20% lat (msec) : 2=5.63%, 4=3.87%, 10=6.90%, 20=9.77%, 50=37.11% lat (msec) : 100=25.00%, 250=6.77%, 500=0.39%, 1000=0.03% cpu : usr=0.09%, sys=4.80%, ctx=6549, 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=144031: Mon Aug 24 04:39:29 2026 read: IOPS=11, BW=46.4KiB/s (47.5kB/s)(6028KiB/130019msec) clat (usec): min=29, max=339787, avg=43415.43, stdev=33423.64 lat (usec): min=29, max=339789, avg=43420.78, stdev=33424.26 clat percentiles (usec): | 1.00th=[ 50], 5.00th=[ 67], 10.00th=[ 2999], 20.00th=[ 21103], | 30.00th=[ 26346], 40.00th=[ 31065], 50.00th=[ 36963], 60.00th=[ 44827], | 70.00th=[ 52167], 80.00th=[ 62653], 90.00th=[ 81265], 95.00th=[ 99091], | 99.00th=[160433], 99.50th=[206570], 99.90th=[299893], 99.95th=[341836], | 99.99th=[341836] bw ( KiB/s): min= 7, max= 119, per=25.69%, avg=46.23, stdev=20.64, samples=253 iops : min= 1, max= 29, avg=10.90, stdev= 5.21, samples=253 write: IOPS=12, BW=48.1KiB/s (49.3kB/s)(6260KiB/130019msec); 0 zone resets clat (usec): min=873, max=999070, avg=41083.96, stdev=48268.21 lat (usec): min=874, max=999073, avg=41099.94, stdev=48278.41 clat percentiles (usec): | 1.00th=[ 1156], 5.00th=[ 1336], 10.00th=[ 1631], | 20.00th=[ 4621], 30.00th=[ 9110], 40.00th=[ 19530], | 50.00th=[ 29492], 60.00th=[ 39584], 70.00th=[ 53216], | 80.00th=[ 69731], 90.00th=[ 94897], 95.00th=[ 117965], | 99.00th=[ 183501], 99.50th=[ 217056], 99.90th=[ 346031], | 99.95th=[1002439], 99.99th=[1002439] bw ( KiB/s): min= 7, max= 95, per=25.53%, avg=48.00, stdev=18.28, samples=253 iops : min= 1, max= 23, avg=11.34, stdev= 4.63, samples=253 lat (usec) : 50=0.55%, 100=3.74%, 250=0.39%, 500=0.13%, 1000=0.16% lat (msec) : 2=5.92%, 4=3.09%, 10=7.26%, 20=8.30%, 50=37.57% lat (msec) : 100=26.37%, 250=6.22%, 500=0.26%, 1000=0.03% cpu : usr=0.09%, sys=4.69%, ctx=6360, 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=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=144032: Mon Aug 24 04:39:29 2026 read: IOPS=11, BW=45.4KiB/s (46.5kB/s)(6052KiB/133219msec) clat (usec): min=34, max=390478, avg=42917.48, stdev=33162.94 lat (usec): min=34, max=390479, avg=42920.45, stdev=33162.18 clat percentiles (usec): | 1.00th=[ 58], 5.00th=[ 70], 10.00th=[ 1319], 20.00th=[ 19792], | 30.00th=[ 25035], 40.00th=[ 30802], 50.00th=[ 35914], 60.00th=[ 42730], | 70.00th=[ 53216], 80.00th=[ 64226], 90.00th=[ 83362], 95.00th=[100140], | 99.00th=[149947], 99.50th=[173016], 99.90th=[283116], 99.95th=[392168], | 99.99th=[392168] bw ( KiB/s): min= 7, max= 96, per=25.25%, avg=45.45, stdev=19.39, samples=258 iops : min= 1, max= 24, avg=10.69, stdev= 4.89, samples=258 write: IOPS=11, BW=46.8KiB/s (47.9kB/s)(6236KiB/133219msec); 0 zone resets clat (usec): min=955, max=1011.1k, avg=43681.68, stdev=50577.06 lat (usec): min=957, max=1011.1k, avg=43692.65, stdev=50571.59 clat percentiles (usec): | 1.00th=[ 1156], 5.00th=[ 1336], 10.00th=[ 1663], | 20.00th=[ 4621], 30.00th=[ 9634], 40.00th=[ 22152], | 50.00th=[ 31851], 60.00th=[ 43254], 70.00th=[ 56886], | 80.00th=[ 73925], 90.00th=[ 100140], 95.00th=[ 130548], | 99.00th=[ 196084], 99.50th=[ 233833], 99.90th=[ 333448], | 99.95th=[1010828], 99.99th=[1010828] bw ( KiB/s): min= 7, max= 102, per=24.79%, avg=46.60, stdev=19.09, samples=259 iops : min= 1, max= 25, avg=10.99, stdev= 4.82, samples=259 lat (usec) : 50=0.10%, 100=4.23%, 250=0.42%, 500=0.07%, 750=0.07% lat (usec) : 1000=0.10% lat (msec) : 2=5.73%, 4=3.61%, 10=6.48%, 20=8.66%, 50=37.21% lat (msec) : 100=25.78%, 250=7.32%, 500=0.20%, 2000=0.03% cpu : usr=0.08%, sys=4.76%, ctx=6436, majf=0, minf=19 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=180KiB/s (185kB/s), 45.4KiB/s-46.4KiB/s (46.5kB/s-47.5kB/s), io=23.4MiB (24.6MB), run=129988-133219msec WRITE: bw=189KiB/s (193kB/s), 46.8KiB/s-48.8KiB/s (47.9kB/s-50.0kB/s), io=24.6MiB (25.7MB), run=129988-133219msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144024: Mon Aug 24 04:41:52 2026 read: IOPS=5, BW=21.6KiB/s (22.1kB/s)(5992KiB/277122msec) clat (msec): min=4, max=1018, avg=42.34, stdev=45.42 lat (msec): min=4, max=1018, avg=42.34, stdev=45.42 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 22], 40.00th=[ 27], 50.00th=[ 32], 60.00th=[ 37], | 70.00th=[ 45], 80.00th=[ 57], 90.00th=[ 82], 95.00th=[ 109], | 99.00th=[ 213], 99.50th=[ 257], 99.90th=[ 363], 99.95th=[ 1020], | 99.99th=[ 1020] bw ( KiB/s): min= 7, max= 95, per=27.65%, avg=23.78, stdev=15.61, samples=485 iops : min= 1, max= 23, avg= 5.27, stdev= 3.96, samples=485 write: IOPS=5, BW=22.7KiB/s (23.3kB/s)(6296KiB/277122msec); 0 zone resets clat (msec): min=32, max=647, avg=135.46, stdev=65.61 lat (msec): min=32, max=647, avg=135.46, stdev=65.61 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 59], 10.00th=[ 69], 20.00th=[ 84], | 30.00th=[ 97], 40.00th=[ 109], 50.00th=[ 122], 60.00th=[ 136], | 70.00th=[ 153], 80.00th=[ 176], 90.00th=[ 224], 95.00th=[ 259], | 99.00th=[ 351], 99.50th=[ 447], 99.90th=[ 485], 99.95th=[ 651], | 99.99th=[ 651] bw ( KiB/s): min= 7, max= 56, per=24.87%, avg=22.38, stdev=10.57, samples=540 iops : min= 1, max= 14, avg= 4.92, stdev= 2.69, samples=540 lat (msec) : 10=2.41%, 20=11.17%, 50=23.63%, 100=25.49%, 250=33.95% lat (msec) : 500=3.29%, 750=0.03%, 2000=0.03% cpu : usr=0.05%, sys=1.20%, ctx=5457, 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=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=144025: Mon Aug 24 04:41:52 2026 read: IOPS=5, BW=21.6KiB/s (22.1kB/s)(5940KiB/275156msec) clat (msec): min=5, max=996, avg=40.95, stdev=44.00 lat (msec): min=5, max=996, avg=40.95, stdev=44.00 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 25], 50.00th=[ 31], 60.00th=[ 37], | 70.00th=[ 44], 80.00th=[ 56], 90.00th=[ 82], 95.00th=[ 106], | 99.00th=[ 192], 99.50th=[ 247], 99.90th=[ 363], 99.95th=[ 995], | 99.99th=[ 995] bw ( KiB/s): min= 7, max= 104, per=28.17%, avg=24.22, stdev=16.58, samples=472 iops : min= 1, max= 26, avg= 5.39, stdev= 4.21, samples=472 write: IOPS=5, BW=23.1KiB/s (23.6kB/s)(6348KiB/275156msec); 0 zone resets clat (msec): min=34, max=525, avg=134.73, stdev=63.35 lat (msec): min=34, max=525, avg=134.74, stdev=63.35 clat percentiles (msec): | 1.00th=[ 44], 5.00th=[ 58], 10.00th=[ 70], 20.00th=[ 85], | 30.00th=[ 97], 40.00th=[ 110], 50.00th=[ 123], 60.00th=[ 136], | 70.00th=[ 153], 80.00th=[ 178], 90.00th=[ 220], 95.00th=[ 255], | 99.00th=[ 338], 99.50th=[ 426], 99.90th=[ 498], 99.95th=[ 527], | 99.99th=[ 527] bw ( KiB/s): min= 7, max= 63, per=25.31%, avg=22.78, stdev=10.20, samples=535 iops : min= 1, max= 15, avg= 5.02, stdev= 2.60, samples=535 lat (msec) : 10=2.54%, 20=11.98%, 50=23.24%, 100=24.15%, 250=34.96% lat (msec) : 500=3.06%, 750=0.03%, 1000=0.03% cpu : usr=0.05%, sys=1.21%, ctx=5465, 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=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=144026: Mon Aug 24 04:41:52 2026 read: IOPS=5, BW=21.8KiB/s (22.3kB/s)(6028KiB/276181msec) clat (msec): min=5, max=352, avg=42.10, stdev=34.70 lat (msec): min=5, max=352, avg=42.11, stdev=34.70 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 18], | 30.00th=[ 22], 40.00th=[ 27], 50.00th=[ 32], 60.00th=[ 39], | 70.00th=[ 47], 80.00th=[ 60], 90.00th=[ 87], 95.00th=[ 109], | 99.00th=[ 167], 99.50th=[ 211], 99.90th=[ 275], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 7, max= 102, per=27.53%, avg=23.68, stdev=15.53, samples=490 iops : min= 1, max= 25, avg= 5.25, stdev= 3.92, samples=490 write: IOPS=5, BW=22.7KiB/s (23.2kB/s)(6260KiB/276181msec); 0 zone resets clat (msec): min=33, max=1131, avg=135.60, stdev=68.76 lat (msec): min=33, max=1131, avg=135.61, stdev=68.76 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 58], 10.00th=[ 70], 20.00th=[ 84], | 30.00th=[ 97], 40.00th=[ 109], 50.00th=[ 122], 60.00th=[ 136], | 70.00th=[ 155], 80.00th=[ 178], 90.00th=[ 220], 95.00th=[ 257], | 99.00th=[ 359], 99.50th=[ 397], 99.90th=[ 531], 99.95th=[ 1133], | 99.99th=[ 1133] bw ( KiB/s): min= 7, max= 64, per=24.85%, avg=22.37, stdev=10.50, samples=537 iops : min= 1, max= 16, avg= 4.92, stdev= 2.68, samples=537 lat (msec) : 10=2.12%, 20=10.64%, 50=24.25%, 100=25.42%, 250=34.51% lat (msec) : 500=2.99%, 750=0.03%, 2000=0.03% cpu : usr=0.05%, sys=1.24%, ctx=5326, 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=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=144027: Mon Aug 24 04:41:52 2026 read: IOPS=5, BW=22.1KiB/s (22.7kB/s)(6052KiB/273372msec) clat (msec): min=5, max=360, avg=39.25, stdev=34.05 lat (msec): min=5, max=360, avg=39.26, stdev=34.05 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 25], 50.00th=[ 30], 60.00th=[ 36], | 70.00th=[ 43], 80.00th=[ 54], 90.00th=[ 78], 95.00th=[ 103], | 99.00th=[ 169], 99.50th=[ 205], 99.90th=[ 355], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 7, max= 93, per=29.02%, avg=24.96, stdev=16.46, samples=467 iops : min= 1, max= 23, avg= 5.57, stdev= 4.15, samples=467 write: IOPS=5, BW=22.8KiB/s (23.4kB/s)(6236KiB/273372msec); 0 zone resets clat (msec): min=30, max=1133, avg=136.94, stdev=70.64 lat (msec): min=30, max=1133, avg=136.95, stdev=70.65 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 59], 10.00th=[ 70], 20.00th=[ 84], | 30.00th=[ 95], 40.00th=[ 109], 50.00th=[ 123], 60.00th=[ 138], | 70.00th=[ 155], 80.00th=[ 182], 90.00th=[ 224], 95.00th=[ 262], | 99.00th=[ 376], 99.50th=[ 443], 99.90th=[ 481], 99.95th=[ 1133], | 99.99th=[ 1133] bw ( KiB/s): min= 7, max= 64, per=24.75%, avg=22.28, stdev=10.43, samples=537 iops : min= 1, max= 16, avg= 4.89, stdev= 2.66, samples=537 lat (msec) : 10=2.44%, 20=11.85%, 50=25.00%, 100=24.38%, 250=33.07% lat (msec) : 500=3.22%, 2000=0.03% cpu : usr=0.05%, sys=1.24%, ctx=5457, 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=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=86.6KiB/s (88.7kB/s), 21.6KiB/s-22.1KiB/s (22.1kB/s-22.7kB/s), io=23.4MiB (24.6MB), run=273372-277122msec WRITE: bw=90.7KiB/s (92.9kB/s), 22.7KiB/s-23.1KiB/s (23.2kB/s-23.6kB/s), io=24.6MiB (25.7MB), run=273372-277122msec 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=144093: Mon Aug 24 04:42:33 2026 read: IOPS=12, BW=207KiB/s (212kB/s)(5920KiB/28535msec) clat (usec): min=42, max=341127, avg=41686.63, stdev=36141.15 lat (usec): min=42, max=341129, avg=41689.14, stdev=36141.39 clat percentiles (usec): | 1.00th=[ 50], 5.00th=[ 68], 10.00th=[ 81], 20.00th=[ 16581], | 30.00th=[ 24249], 40.00th=[ 29492], 50.00th=[ 38011], 60.00th=[ 45876], | 70.00th=[ 52167], 80.00th=[ 63177], 90.00th=[ 79168], 95.00th=[ 94897], | 99.00th=[164627], 99.50th=[278922], 99.90th=[341836], 99.95th=[341836], | 99.99th=[341836] bw ( KiB/s): min= 62, max= 412, per=24.67%, avg=206.95, stdev=80.56, samples=56 iops : min= 3, max= 25, avg=12.16, stdev= 5.04, samples=56 write: IOPS=13, BW=223KiB/s (229kB/s)(6368KiB/28535msec); 0 zone resets clat (usec): min=1263, max=279395, avg=32837.55, stdev=35416.85 lat (usec): min=1264, max=279397, avg=32840.65, stdev=35416.57 clat percentiles (usec): | 1.00th=[ 1500], 5.00th=[ 1909], 10.00th=[ 2540], 20.00th=[ 5342], | 30.00th=[ 8160], 40.00th=[ 13566], 50.00th=[ 22152], 60.00th=[ 31589], | 70.00th=[ 42206], 80.00th=[ 54789], 90.00th=[ 77071], 95.00th=[ 99091], | 99.00th=[160433], 99.50th=[191890], 99.90th=[278922], 99.95th=[278922], | 99.99th=[278922] bw ( KiB/s): min= 31, max= 473, per=25.25%, avg=222.95, stdev=97.96, samples=56 iops : min= 1, max= 29, avg=13.18, stdev= 6.16, samples=56 lat (usec) : 50=0.52%, 100=6.38%, 250=1.04%, 1000=0.13% lat (msec) : 2=3.26%, 4=5.21%, 10=9.38%, 20=10.29%, 50=35.94% lat (msec) : 100=23.83%, 250=3.65%, 500=0.39% cpu : usr=0.11%, sys=5.85%, ctx=1509, 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=144094: Mon Aug 24 04:42:33 2026 read: IOPS=12, BW=202KiB/s (206kB/s)(5744KiB/28497msec) clat (usec): min=44, max=186436, avg=41387.25, stdev=30954.22 lat (usec): min=44, max=186437, avg=41389.14, stdev=30954.09 clat percentiles (usec): | 1.00th=[ 49], 5.00th=[ 69], 10.00th=[ 79], 20.00th=[ 18482], | 30.00th=[ 26084], 40.00th=[ 31589], 50.00th=[ 36963], 60.00th=[ 44827], | 70.00th=[ 52691], 80.00th=[ 63177], 90.00th=[ 77071], 95.00th=[ 96994], | 99.00th=[152044], 99.50th=[162530], 99.90th=[185598], 99.95th=[185598], | 99.99th=[185598] bw ( KiB/s): min= 55, max= 414, per=24.87%, avg=208.65, stdev=85.57, samples=54 iops : min= 3, max= 25, avg=12.24, stdev= 5.41, samples=54 write: IOPS=14, BW=230KiB/s (235kB/s)(6544KiB/28500msec); 0 zone resets clat (usec): min=1355, max=275329, avg=33172.86, stdev=42123.97 lat (usec): min=1356, max=275332, avg=33175.42, stdev=42123.97 clat percentiles (usec): | 1.00th=[ 1631], 5.00th=[ 1778], 10.00th=[ 2180], 20.00th=[ 4146], | 30.00th=[ 6456], 40.00th=[ 10421], 50.00th=[ 17957], 60.00th=[ 29230], | 70.00th=[ 38011], 80.00th=[ 54264], 90.00th=[ 81265], 95.00th=[110625], | 99.00th=[225444], 99.50th=[233833], 99.90th=[274727], 99.95th=[274727], | 99.99th=[274727] bw ( KiB/s): min= 31, max= 538, per=25.96%, avg=229.20, stdev=109.98, samples=56 iops : min= 1, max= 33, avg=13.57, stdev= 6.87, samples=56 lat (usec) : 50=0.65%, 100=5.34%, 250=0.91%, 500=0.13%, 750=0.26% lat (msec) : 2=4.69%, 4=6.12%, 10=10.81%, 20=9.24%, 50=34.77% lat (msec) : 100=21.48%, 250=5.34%, 500=0.26% cpu : usr=0.08%, sys=5.45%, ctx=1464, 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=144095: Mon Aug 24 04:42:33 2026 read: IOPS=14, BW=228KiB/s (234kB/s)(6256KiB/27411msec) clat (usec): min=38, max=176902, avg=40169.47, stdev=29285.03 lat (usec): min=38, max=176904, avg=40171.49, stdev=29284.24 clat percentiles (usec): | 1.00th=[ 48], 5.00th=[ 67], 10.00th=[ 77], 20.00th=[ 15139], | 30.00th=[ 27919], 40.00th=[ 32900], 50.00th=[ 37487], 60.00th=[ 43779], | 70.00th=[ 51119], 80.00th=[ 62653], 90.00th=[ 74974], 95.00th=[ 93848], | 99.00th=[137364], 99.50th=[143655], 99.90th=[177210], 99.95th=[177210], | 99.99th=[177210] bw ( KiB/s): min= 31, max= 599, per=27.21%, avg=228.30, stdev=100.24, samples=54 iops : min= 1, max= 37, avg=13.52, stdev= 6.33, samples=54 write: IOPS=13, BW=220KiB/s (225kB/s)(6032KiB/27411msec); 0 zone resets clat (usec): min=1082, max=355219, avg=30893.42, stdev=36654.25 lat (usec): min=1083, max=355223, avg=30896.17, stdev=36654.26 clat percentiles (usec): | 1.00th=[ 1418], 5.00th=[ 1778], 10.00th=[ 2507], 20.00th=[ 4752], | 30.00th=[ 6783], 40.00th=[ 9896], 50.00th=[ 16319], 60.00th=[ 25297], | 70.00th=[ 39060], 80.00th=[ 55313], 90.00th=[ 73925], 95.00th=[ 92799], | 99.00th=[158335], 99.50th=[179307], 99.90th=[354419], 99.95th=[354419], | 99.99th=[354419] bw ( KiB/s): min= 31, max= 473, per=24.76%, avg=218.63, stdev=100.86, samples=54 iops : min= 1, max= 29, avg=12.91, stdev= 6.36, samples=54 lat (usec) : 50=0.65%, 100=7.55%, 250=0.78% lat (msec) : 2=3.78%, 4=4.04%, 10=12.63%, 20=8.85%, 50=34.51% lat (msec) : 100=23.70%, 250=3.39%, 500=0.13% cpu : usr=0.12%, sys=5.95%, ctx=1435, 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=144096: Mon Aug 24 04:42:33 2026 read: IOPS=13, BW=224KiB/s (229kB/s)(6032KiB/26964msec) clat (usec): min=41, max=210163, avg=40184.66, stdev=30539.06 lat (usec): min=42, max=210164, avg=40186.08, stdev=30539.08 clat percentiles (usec): | 1.00th=[ 55], 5.00th=[ 67], 10.00th=[ 78], 20.00th=[ 18744], | 30.00th=[ 26608], 40.00th=[ 32375], 50.00th=[ 37487], 60.00th=[ 43779], | 70.00th=[ 49021], 80.00th=[ 57934], 90.00th=[ 77071], 95.00th=[ 92799], | 99.00th=[141558], 99.50th=[198181], 99.90th=[210764], 99.95th=[210764], | 99.99th=[210764] bw ( KiB/s): min= 31, max= 477, per=26.59%, avg=223.11, stdev=87.53, samples=53 iops : min= 1, max= 29, avg=13.19, stdev= 5.49, samples=53 write: IOPS=14, BW=232KiB/s (238kB/s)(6256KiB/26964msec); 0 zone resets clat (usec): min=1198, max=145742, avg=30041.12, stdev=30419.74 lat (usec): min=1200, max=145745, avg=30043.95, stdev=30419.74 clat percentiles (usec): | 1.00th=[ 1631], 5.00th=[ 1975], 10.00th=[ 2933], 20.00th=[ 4948], | 30.00th=[ 7439], 40.00th=[ 12125], 50.00th=[ 20055], 60.00th=[ 28181], | 70.00th=[ 38536], 80.00th=[ 50594], 90.00th=[ 74974], 95.00th=[ 99091], | 99.00th=[126354], 99.50th=[135267], 99.90th=[145753], 99.95th=[145753], | 99.99th=[145753] bw ( KiB/s): min= 64, max= 476, per=26.31%, avg=232.36, stdev=89.50, samples=53 iops : min= 4, max= 29, avg=13.77, stdev= 5.64, samples=53 lat (usec) : 50=0.26%, 100=7.03%, 250=0.52%, 500=0.13% lat (msec) : 2=2.73%, 4=5.47%, 10=10.42%, 20=9.51%, 50=38.93% lat (msec) : 100=20.83%, 250=4.17% cpu : usr=0.12%, sys=5.83%, ctx=1480, 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=839KiB/s (860kB/s), 202KiB/s-228KiB/s (206kB/s-234kB/s), io=23.4MiB (24.5MB), run=26964-28535msec WRITE: bw=883KiB/s (904kB/s), 220KiB/s-232KiB/s (225kB/s-238kB/s), io=24.6MiB (25.8MB), run=26964-28535msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144088: Mon Aug 24 04:43:08 2026 read: IOPS=5, BW=93.5KiB/s (95.7kB/s)(5920KiB/63318msec) clat (msec): min=6, max=313, avg=39.61, stdev=42.05 lat (msec): min=6, max=313, avg=39.64, stdev=42.03 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 22], 50.00th=[ 25], 60.00th=[ 31], | 70.00th=[ 37], 80.00th=[ 50], 90.00th=[ 89], 95.00th=[ 128], | 99.00th=[ 245], 99.50th=[ 296], 99.90th=[ 313], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 30, max= 319, per=26.42%, avg=98.55, stdev=57.88, samples=116 iops : min= 1, max= 19, avg= 5.37, stdev= 3.70, samples=116 write: IOPS=6, BW=101KiB/s (103kB/s)(6368KiB/63318msec); 0 zone resets clat (msec): min=39, max=542, avg=122.09, stdev=57.54 lat (msec): min=39, max=542, avg=122.10, stdev=57.54 clat percentiles (msec): | 1.00th=[ 44], 5.00th=[ 61], 10.00th=[ 69], 20.00th=[ 80], | 30.00th=[ 88], 40.00th=[ 101], 50.00th=[ 109], 60.00th=[ 121], | 70.00th=[ 136], 80.00th=[ 155], 90.00th=[ 192], 95.00th=[ 232], | 99.00th=[ 321], 99.50th=[ 426], 99.90th=[ 542], 99.95th=[ 542], | 99.99th=[ 542] bw ( KiB/s): min= 30, max= 223, per=25.40%, avg=99.81, stdev=45.15, samples=124 iops : min= 1, max= 13, avg= 5.44, stdev= 2.90, samples=124 lat (msec) : 10=1.69%, 20=15.49%, 50=22.66%, 100=25.00%, 250=33.07% lat (msec) : 500=1.95%, 750=0.13% cpu : usr=0.05%, sys=1.26%, ctx=1238, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144089: Mon Aug 24 04:43:08 2026 read: IOPS=5, BW=89.6KiB/s (91.7kB/s)(5744KiB/64112msec) clat (msec): min=5, max=366, avg=37.68, stdev=41.81 lat (msec): min=5, max=366, avg=37.68, stdev=41.81 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 15], | 30.00th=[ 17], 40.00th=[ 21], 50.00th=[ 24], 60.00th=[ 28], | 70.00th=[ 35], 80.00th=[ 50], 90.00th=[ 83], 95.00th=[ 122], | 99.00th=[ 218], 99.50th=[ 317], 99.90th=[ 368], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 30, max= 349, per=26.58%, avg=99.13, stdev=69.02, samples=112 iops : min= 1, max= 21, avg= 5.42, stdev= 4.34, samples=112 write: IOPS=6, BW=102KiB/s (105kB/s)(6544KiB/64112msec); 0 zone resets clat (msec): min=30, max=456, avg=123.26, stdev=59.36 lat (msec): min=30, max=456, avg=123.27, stdev=59.36 clat percentiles (msec): | 1.00th=[ 40], 5.00th=[ 53], 10.00th=[ 63], 20.00th=[ 78], | 30.00th=[ 88], 40.00th=[ 99], 50.00th=[ 111], 60.00th=[ 122], | 70.00th=[ 138], 80.00th=[ 163], 90.00th=[ 209], 95.00th=[ 249], | 99.00th=[ 305], 99.50th=[ 317], 99.90th=[ 456], 99.95th=[ 456], | 99.99th=[ 456] bw ( KiB/s): min= 31, max= 223, per=25.43%, avg=99.95, stdev=46.55, samples=126 iops : min= 1, max= 13, avg= 5.46, stdev= 3.00, samples=126 lat (msec) : 10=3.78%, 20=14.19%, 50=21.48%, 100=25.78%, 250=31.90% lat (msec) : 500=2.86% cpu : usr=0.06%, sys=1.29%, ctx=1262, 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=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=144090: Mon Aug 24 04:43:08 2026 read: IOPS=6, BW=102KiB/s (104kB/s)(6256KiB/61468msec) clat (msec): min=8, max=319, avg=34.95, stdev=36.43 lat (msec): min=8, max=319, avg=34.95, stdev=36.43 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 24], 60.00th=[ 28], | 70.00th=[ 34], 80.00th=[ 43], 90.00th=[ 68], 95.00th=[ 103], | 99.00th=[ 199], 99.50th=[ 249], 99.90th=[ 321], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 30, max= 349, per=29.22%, avg=108.97, stdev=76.46, samples=113 iops : min= 1, max= 21, avg= 6.03, stdev= 4.85, samples=113 write: IOPS=6, BW=98.1KiB/s (100kB/s)(6032KiB/61468msec); 0 zone resets clat (msec): min=37, max=331, avg=126.28, stdev=60.05 lat (msec): min=37, max=331, avg=126.29, stdev=60.05 clat percentiles (msec): | 1.00th=[ 45], 5.00th=[ 57], 10.00th=[ 67], 20.00th=[ 80], | 30.00th=[ 90], 40.00th=[ 100], 50.00th=[ 110], 60.00th=[ 126], | 70.00th=[ 140], 80.00th=[ 161], 90.00th=[ 228], 95.00th=[ 255], | 99.00th=[ 321], 99.50th=[ 326], 99.90th=[ 334], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 30, max= 223, per=24.77%, avg=97.34, stdev=44.87, samples=121 iops : min= 1, max= 13, avg= 5.29, stdev= 2.87, samples=121 lat (msec) : 10=2.60%, 20=16.41%, 50=25.78%, 100=23.57%, 250=28.78% lat (msec) : 500=2.86% cpu : usr=0.05%, sys=1.35%, ctx=1305, 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=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=144091: Mon Aug 24 04:43:08 2026 read: IOPS=5, BW=94.8KiB/s (97.0kB/s)(6032KiB/63659msec) clat (msec): min=6, max=334, avg=36.68, stdev=39.80 lat (msec): min=6, max=334, avg=36.69, stdev=39.80 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 23], 60.00th=[ 27], | 70.00th=[ 34], 80.00th=[ 50], 90.00th=[ 77], 95.00th=[ 110], | 99.00th=[ 194], 99.50th=[ 249], 99.90th=[ 334], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 31, max= 351, per=29.36%, avg=109.52, stdev=69.02, samples=107 iops : min= 1, max= 21, avg= 6.05, stdev= 4.42, samples=107 write: IOPS=6, BW=98.3KiB/s (101kB/s)(6256KiB/63659msec); 0 zone resets clat (msec): min=35, max=528, avg=127.02, stdev=64.06 lat (msec): min=35, max=528, avg=127.03, stdev=64.07 clat percentiles (msec): | 1.00th=[ 49], 5.00th=[ 60], 10.00th=[ 66], 20.00th=[ 79], | 30.00th=[ 88], 40.00th=[ 100], 50.00th=[ 110], 60.00th=[ 126], | 70.00th=[ 140], 80.00th=[ 165], 90.00th=[ 215], 95.00th=[ 253], | 99.00th=[ 347], 99.50th=[ 439], 99.90th=[ 531], 99.95th=[ 531], | 99.99th=[ 531] bw ( KiB/s): min= 31, max= 192, per=24.86%, avg=97.69, stdev=46.75, samples=125 iops : min= 1, max= 12, avg= 5.31, stdev= 3.00, samples=125 lat (msec) : 10=3.78%, 20=16.67%, 50=19.79%, 100=26.69%, 250=30.21% lat (msec) : 500=2.73%, 750=0.13% cpu : usr=0.06%, sys=1.38%, ctx=1301, 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=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=374KiB/s (383kB/s), 89.6KiB/s-102KiB/s (91.7kB/s-104kB/s), io=23.4MiB (24.5MB), run=61468-64112msec WRITE: bw=393KiB/s (402kB/s), 98.1KiB/s-102KiB/s (100kB/s-105kB/s), io=24.6MiB (25.8MB), run=61468-64112msec 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=144116: Mon Aug 24 04:43:26 2026 read: IOPS=2, BW=2439KiB/s (2497kB/s)(7168KiB/2939msec) clat (msec): min=70, max=456, avg=176.75, stdev=131.10 lat (msec): min=70, max=456, avg=176.76, stdev=131.10 clat percentiles (msec): | 1.00th=[ 71], 5.00th=[ 71], 10.00th=[ 71], 20.00th=[ 83], | 30.00th=[ 129], 40.00th=[ 129], 50.00th=[ 133], 60.00th=[ 167], | 70.00th=[ 167], 80.00th=[ 201], 90.00th=[ 456], 95.00th=[ 456], | 99.00th=[ 456], 99.50th=[ 456], 99.90th=[ 456], 99.95th=[ 456], | 99.99th=[ 456] bw ( KiB/s): min= 1835, max= 5710, per=100.00%, avg=3133.33, stdev=2231.48, samples=3 iops : min= 1, max= 5, avg= 2.33, stdev= 2.31, samples=3 write: IOPS=1, BW=1742KiB/s (1784kB/s)(5120KiB/2939msec); 0 zone resets clat (msec): min=173, max=720, avg=330.97, stdev=225.45 lat (msec): min=173, max=720, avg=331.08, stdev=225.45 clat percentiles (msec): | 1.00th=[ 174], 5.00th=[ 174], 10.00th=[ 174], 20.00th=[ 174], | 30.00th=[ 180], 40.00th=[ 180], 50.00th=[ 284], 60.00th=[ 284], | 70.00th=[ 300], 80.00th=[ 300], 90.00th=[ 718], 95.00th=[ 718], | 99.00th=[ 718], 99.50th=[ 718], 99.90th=[ 718], 99.95th=[ 718], | 99.99th=[ 718] bw ( KiB/s): min= 1855, max= 4071, per=61.90%, avg=2652.33, stdev=1231.75, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 100=16.67%, 250=50.00%, 500=25.00%, 750=8.33% cpu : usr=0.00%, sys=3.20%, ctx=72, 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=144117: Mon Aug 24 04:43:26 2026 read: IOPS=0, BW=306KiB/s (313kB/s)(2048KiB/6690msec) clat (msec): min=111, max=160, avg=136.12, stdev=34.14 lat (msec): min=111, max=160, avg=136.12, stdev=34.14 clat percentiles (msec): | 1.00th=[ 112], 5.00th=[ 112], 10.00th=[ 112], 20.00th=[ 112], | 30.00th=[ 112], 40.00th=[ 112], 50.00th=[ 112], 60.00th=[ 161], | 70.00th=[ 161], 80.00th=[ 161], 90.00th=[ 161], 95.00th=[ 161], | 99.00th=[ 161], 99.50th=[ 161], 99.90th=[ 161], 99.95th=[ 161], | 99.99th=[ 161] bw ( KiB/s): min= 1296, max= 2019, per=54.15%, avg=1657.50, stdev=511.24, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1531KiB/s (1567kB/s)(10.0MiB/6690msec); 0 zone resets clat (msec): min=192, max=2673, avg=635.13, stdev=737.85 lat (msec): min=192, max=2673, avg=635.25, stdev=737.85 clat percentiles (msec): | 1.00th=[ 192], 5.00th=[ 192], 10.00th=[ 192], 20.00th=[ 209], | 30.00th=[ 224], 40.00th=[ 384], 50.00th=[ 409], 60.00th=[ 451], | 70.00th=[ 506], 80.00th=[ 527], 90.00th=[ 776], 95.00th=[ 2668], | 99.00th=[ 2668], 99.50th=[ 2668], 99.90th=[ 2668], 99.95th=[ 2668], | 99.99th=[ 2668] bw ( KiB/s): min= 1828, max= 2592, per=48.13%, avg=2062.25, stdev=226.05, samples=8 iops : min= 1, max= 2, avg= 1.12, stdev= 0.35, samples=8 lat (msec) : 250=41.67%, 500=25.00%, 750=16.67%, 1000=8.33%, >=2000=8.33% cpu : usr=0.00%, sys=2.02%, ctx=59, 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=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=144118: Mon Aug 24 04:43:26 2026 read: IOPS=0, BW=965KiB/s (988kB/s)(6144KiB/6369msec) clat (msec): min=126, max=236, avg=185.25, stdev=42.42 lat (msec): min=126, max=236, avg=185.25, stdev=42.42 clat percentiles (msec): | 1.00th=[ 127], 5.00th=[ 127], 10.00th=[ 127], 20.00th=[ 159], | 30.00th=[ 159], 40.00th=[ 163], 50.00th=[ 163], 60.00th=[ 207], | 70.00th=[ 220], 80.00th=[ 220], 90.00th=[ 236], 95.00th=[ 236], | 99.00th=[ 236], 99.50th=[ 236], 99.90th=[ 236], 99.95th=[ 236], | 99.99th=[ 236] bw ( KiB/s): min= 1828, max= 4063, per=80.44%, avg=2462.25, stdev=1070.14, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=0, BW=965KiB/s (988kB/s)(6144KiB/6369msec); 0 zone resets clat (msec): min=197, max=2429, avg=860.78, stdev=904.48 lat (msec): min=197, max=2429, avg=860.90, stdev=904.49 clat percentiles (msec): | 1.00th=[ 199], 5.00th=[ 199], 10.00th=[ 199], 20.00th=[ 213], | 30.00th=[ 213], 40.00th=[ 300], 50.00th=[ 300], 60.00th=[ 558], | 70.00th=[ 1469], 80.00th=[ 1469], 90.00th=[ 2433], 95.00th=[ 2433], | 99.00th=[ 2433], 99.50th=[ 2433], 99.90th=[ 2433], 99.95th=[ 2433], | 99.99th=[ 2433] bw ( KiB/s): min= 1828, max= 2592, per=48.93%, avg=2096.50, stdev=340.58, samples=4 iops : min= 1, max= 2, avg= 1.25, stdev= 0.50, samples=4 lat (msec) : 250=66.67%, 500=8.33%, 750=8.33%, 2000=8.33%, >=2000=8.33% cpu : usr=0.09%, sys=1.79%, ctx=62, 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=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=144119: Mon Aug 24 04:43:26 2026 read: IOPS=0, BW=973KiB/s (996kB/s)(5120KiB/5264msec) clat (msec): min=68, max=437, avg=206.51, stdev=165.19 lat (msec): min=68, max=437, avg=206.51, stdev=165.19 clat percentiles (msec): | 1.00th=[ 69], 5.00th=[ 69], 10.00th=[ 69], 20.00th=[ 69], | 30.00th=[ 96], 40.00th=[ 96], 50.00th=[ 106], 60.00th=[ 106], | 70.00th=[ 326], 80.00th=[ 326], 90.00th=[ 439], 95.00th=[ 439], | 99.00th=[ 439], 99.50th=[ 439], 99.90th=[ 439], 99.95th=[ 439], | 99.99th=[ 439] bw ( KiB/s): min= 2043, max= 6071, per=100.00%, avg=4057.00, stdev=2848.23, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=1, BW=1362KiB/s (1394kB/s)(7168KiB/5264msec); 0 zone resets clat (msec): min=157, max=1659, avg=586.64, stdev=546.82 lat (msec): min=157, max=1659, avg=586.76, stdev=546.81 clat percentiles (msec): | 1.00th=[ 157], 5.00th=[ 157], 10.00th=[ 157], 20.00th=[ 243], | 30.00th=[ 257], 40.00th=[ 257], 50.00th=[ 288], 60.00th=[ 542], | 70.00th=[ 542], 80.00th=[ 961], 90.00th=[ 1653], 95.00th=[ 1653], | 99.00th=[ 1653], 99.50th=[ 1653], 99.90th=[ 1653], 99.95th=[ 1653], | 99.99th=[ 1653] bw ( KiB/s): min= 1828, max= 3864, per=56.28%, avg=2411.50, stdev=971.48, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (msec) : 100=16.67%, 250=25.00%, 500=33.33%, 750=8.33%, 1000=8.33% lat (msec) : 2000=8.33% cpu : usr=0.02%, sys=2.47%, ctx=61, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=3061KiB/s (3135kB/s), 306KiB/s-2439KiB/s (313kB/s-2497kB/s), io=20.0MiB (20.0MB), run=2939-6690msec WRITE: bw=4286KiB/s (4389kB/s), 965KiB/s-1742KiB/s (988kB/s-1784kB/s), io=28.0MiB (29.4MB), run=2939-6690msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144121: Mon Aug 24 04:43:27 2026 read: IOPS=1, BW=1448KiB/s (1483kB/s)(7168KiB/4951msec) clat (msec): min=4, max=2485, avg=527.87, stdev=868.17 lat (msec): min=4, max=2485, avg=527.87, stdev=868.17 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 5], 10.00th=[ 5], 20.00th=[ 215], | 30.00th=[ 220], 40.00th=[ 220], 50.00th=[ 236], 60.00th=[ 239], | 70.00th=[ 239], 80.00th=[ 296], 90.00th=[ 2500], 95.00th=[ 2500], | 99.00th=[ 2500], 99.50th=[ 2500], 99.90th=[ 2500], 99.95th=[ 2500], | 99.99th=[ 2500] bw ( KiB/s): min= 1721, max= 3961, per=79.90%, avg=2312.40, stdev=928.44, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 write: IOPS=1, BW=1034KiB/s (1059kB/s)(5120KiB/4951msec); 0 zone resets clat (msec): min=197, max=293, avg=250.81, stdev=35.80 lat (msec): min=197, max=293, avg=250.89, stdev=35.81 clat percentiles (msec): | 1.00th=[ 199], 5.00th=[ 199], 10.00th=[ 199], 20.00th=[ 199], | 30.00th=[ 239], 40.00th=[ 239], 50.00th=[ 262], 60.00th=[ 262], | 70.00th=[ 266], 80.00th=[ 266], 90.00th=[ 292], 95.00th=[ 292], | 99.00th=[ 292], 99.50th=[ 292], 99.90th=[ 292], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 1914, max= 3871, per=64.30%, avg=2605.33, stdev=1097.66, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 10=8.33%, 250=50.00%, 500=33.33%, >=2000=8.33% cpu : usr=0.00%, sys=9.47%, ctx=330, 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=144122: Mon Aug 24 04:43:27 2026 read: IOPS=0, BW=302KiB/s (309kB/s)(2048KiB/6783msec) clat (msec): min=260, max=378, avg=319.32, stdev=83.44 lat (msec): min=260, max=378, avg=319.32, stdev=83.44 clat percentiles (msec): | 1.00th=[ 262], 5.00th=[ 262], 10.00th=[ 262], 20.00th=[ 262], | 30.00th=[ 262], 40.00th=[ 262], 50.00th=[ 262], 60.00th=[ 380], | 70.00th=[ 380], 80.00th=[ 380], 90.00th=[ 380], 95.00th=[ 380], | 99.00th=[ 380], 99.50th=[ 380], 99.90th=[ 380], 99.95th=[ 380], | 99.99th=[ 380] bw ( KiB/s): min= 1659, max= 2035, per=63.82%, avg=1847.00, stdev=265.87, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1510KiB/s (1546kB/s)(10.0MiB/6783msec); 0 zone resets clat (msec): min=77, max=3198, avg=614.02, stdev=935.36 lat (msec): min=78, max=3198, avg=614.19, stdev=935.31 clat percentiles (msec): | 1.00th=[ 79], 5.00th=[ 79], 10.00th=[ 79], 20.00th=[ 140], | 30.00th=[ 142], 40.00th=[ 163], 50.00th=[ 211], 60.00th=[ 317], | 70.00th=[ 609], 80.00th=[ 625], 90.00th=[ 659], 95.00th=[ 3205], | 99.00th=[ 3205], 99.50th=[ 3205], 99.90th=[ 3205], 99.95th=[ 3205], | 99.99th=[ 3205] bw ( KiB/s): min= 1935, max= 6119, per=89.29%, avg=3618.00, stdev=2229.53, samples=5 iops : min= 1, max= 5, avg= 2.80, stdev= 2.05, samples=5 lat (msec) : 100=8.33%, 250=33.33%, 500=25.00%, 750=25.00%, >=2000=8.33% cpu : usr=0.03%, sys=7.98%, ctx=144, 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=144123: Mon Aug 24 04:43:27 2026 read: IOPS=0, BW=963KiB/s (986kB/s)(6144KiB/6382msec) clat (usec): min=528, max=850980, avg=250754.48, stdev=336293.48 lat (usec): min=530, max=850982, avg=250756.22, stdev=336293.40 clat percentiles (usec): | 1.00th=[ 529], 5.00th=[ 529], 10.00th=[ 529], 20.00th=[ 537], | 30.00th=[ 537], 40.00th=[ 9241], 50.00th=[ 9241], 60.00th=[246416], | 70.00th=[396362], 80.00th=[396362], 90.00th=[851444], 95.00th=[851444], | 99.00th=[851444], 99.50th=[851444], 99.90th=[851444], 99.95th=[851444], | 99.99th=[851444] bw ( KiB/s): min= 1914, max= 2035, per=68.22%, avg=1974.40, stdev=49.28, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 write: IOPS=0, BW=963KiB/s (986kB/s)(6144KiB/6382msec); 0 zone resets clat (msec): min=213, max=3141, avg=811.14, stdev=1153.51 lat (msec): min=213, max=3141, avg=812.34, stdev=1153.33 clat percentiles (msec): | 1.00th=[ 213], 5.00th=[ 213], 10.00th=[ 213], 20.00th=[ 245], | 30.00th=[ 245], 40.00th=[ 271], 50.00th=[ 271], 60.00th=[ 334], | 70.00th=[ 667], 80.00th=[ 667], 90.00th=[ 3138], 95.00th=[ 3138], | 99.00th=[ 3138], 99.50th=[ 3138], 99.90th=[ 3138], 99.95th=[ 3138], | 99.99th=[ 3138] bw ( KiB/s): min= 1914, max= 4096, per=74.32%, avg=3011.25, stdev=1198.80, samples=4 iops : min= 1, max= 4, avg= 2.25, stdev= 1.50, samples=4 lat (usec) : 750=16.67% lat (msec) : 10=8.33%, 250=25.00%, 500=25.00%, 750=8.33%, 1000=8.33% lat (msec) : >=2000=8.33% cpu : usr=0.03%, sys=6.41%, ctx=166, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144124: Mon Aug 24 04:43:27 2026 read: IOPS=0, BW=724KiB/s (741kB/s)(5120KiB/7076msec) clat (usec): min=379, max=302104, avg=152303.63, stdev=143093.49 lat (usec): min=379, max=302105, avg=152304.83, stdev=143093.72 clat percentiles (usec): | 1.00th=[ 379], 5.00th=[ 379], 10.00th=[ 379], 20.00th=[ 379], | 30.00th=[ 545], 40.00th=[ 545], 50.00th=[202376], 60.00th=[202376], | 70.00th=[256902], 80.00th=[256902], 90.00th=[304088], 95.00th=[304088], | 99.00th=[304088], 99.50th=[304088], 99.90th=[304088], 99.95th=[304088], | 99.99th=[304088] bw ( KiB/s): min= 8000, max= 8000, per=100.00%, avg=8000.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=0, BW=1013KiB/s (1037kB/s)(7168KiB/7076msec); 0 zone resets clat (msec): min=171, max=3131, avg=901.74, stdev=1108.20 lat (msec): min=171, max=3131, avg=901.83, stdev=1108.21 clat percentiles (msec): | 1.00th=[ 171], 5.00th=[ 171], 10.00th=[ 171], 20.00th=[ 174], | 30.00th=[ 226], 40.00th=[ 226], 50.00th=[ 401], 60.00th=[ 584], | 70.00th=[ 584], 80.00th=[ 1620], 90.00th=[ 3138], 95.00th=[ 3138], | 99.00th=[ 3138], 99.50th=[ 3138], 99.90th=[ 3138], 99.95th=[ 3138], | 99.99th=[ 3138] bw ( KiB/s): min= 1988, max= 4079, per=73.69%, avg=2985.75, stdev=1122.42, samples=4 iops : min= 1, max= 3, avg= 2.25, stdev= 0.96, samples=4 lat (usec) : 500=8.33%, 750=8.33% lat (msec) : 250=33.33%, 500=25.00%, 750=8.33%, 2000=8.33%, >=2000=8.33% cpu : usr=0.00%, sys=5.12%, ctx=109, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=2894KiB/s (2964kB/s), 302KiB/s-1448KiB/s (309kB/s-1483kB/s), io=20.0MiB (20.0MB), run=4951-7076msec WRITE: bw=4052KiB/s (4149kB/s), 963KiB/s-1510KiB/s (986kB/s-1546kB/s), io=28.0MiB (29.4MB), run=4951-7076msec 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=144136: Mon Aug 24 04:43:43 2026 read: IOPS=1, BW=4106KiB/s (4204kB/s)(12.0MiB/2993msec) clat (msec): min=767, max=1294, avg=995.65, stdev=270.37 lat (msec): min=767, max=1294, avg=995.65, stdev=270.37 clat percentiles (msec): | 1.00th=[ 768], 5.00th=[ 768], 10.00th=[ 768], 20.00th=[ 768], | 30.00th=[ 768], 40.00th=[ 927], 50.00th=[ 927], 60.00th=[ 927], | 70.00th=[ 1301], 80.00th=[ 1301], 90.00th=[ 1301], 95.00th=[ 1301], | 99.00th=[ 1301], 99.50th=[ 1301], 99.90th=[ 1301], 99.95th=[ 1301], | 99.99th=[ 1301] bw ( KiB/s): min= 7953, max= 8126, per=100.00%, avg=8039.50, stdev=122.33, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=66.67%, 2000=33.33% cpu : usr=0.17%, sys=10.73%, ctx=393, 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=144137: Mon Aug 24 04:43:43 2026 read: IOPS=0, BW=1380KiB/s (1413kB/s)(4096KiB/2968msec) clat (nsec): min=867037k, max=867037k, avg=867036613.00, stdev= 0.00 lat (nsec): min=867039k, max=867039k, avg=867038583.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 869], 5.00th=[ 869], 10.00th=[ 869], 20.00th=[ 869], | 30.00th=[ 869], 40.00th=[ 869], 50.00th=[ 869], 60.00th=[ 869], | 70.00th=[ 869], 80.00th=[ 869], 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= 8126, max= 8126, per=100.00%, avg=8126.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2760KiB/s (2826kB/s)(8192KiB/2968msec); 0 zone resets clat (msec): min=935, max=1161, avg=1048.37, stdev=159.39 lat (msec): min=935, max=1163, avg=1049.93, stdev=161.23 clat percentiles (msec): | 1.00th=[ 936], 5.00th=[ 936], 10.00th=[ 936], 20.00th=[ 936], | 30.00th=[ 936], 40.00th=[ 936], 50.00th=[ 936], 60.00th=[ 1167], | 70.00th=[ 1167], 80.00th=[ 1167], 90.00th=[ 1167], 95.00th=[ 1167], | 99.00th=[ 1167], 99.50th=[ 1167], 99.90th=[ 1167], 99.95th=[ 1167], | 99.99th=[ 1167] bw ( KiB/s): min= 7968, max= 7968, per=87.05%, avg=7968.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 1000=66.67%, 2000=33.33% cpu : usr=0.00%, sys=3.57%, ctx=175, 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=144138: Mon Aug 24 04:43:43 2026 write: IOPS=0, BW=3432KiB/s (3515kB/s)(12.0MiB/3580msec); 0 zone resets clat (msec): min=284, max=1843, avg=1191.29, stdev=810.28 lat (msec): min=284, max=1844, avg=1191.74, stdev=810.23 clat percentiles (msec): | 1.00th=[ 284], 5.00th=[ 284], 10.00th=[ 284], 20.00th=[ 284], | 30.00th=[ 284], 40.00th=[ 1452], 50.00th=[ 1452], 60.00th=[ 1452], | 70.00th=[ 1838], 80.00th=[ 1838], 90.00th=[ 1838], 95.00th=[ 1838], | 99.00th=[ 1838], 99.50th=[ 1838], 99.90th=[ 1838], 99.95th=[ 1838], | 99.99th=[ 1838] bw ( KiB/s): min= 7968, max= 7968, per=87.05%, avg=7968.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.00%, sys=3.16%, 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 rand-rw: (groupid=0, jobs=1): err= 0: pid=144139: Mon Aug 24 04:43:43 2026 write: IOPS=0, BW=3617KiB/s (3704kB/s)(12.0MiB/3397msec); 0 zone resets clat (msec): min=821, max=1540, avg=1131.50, stdev=369.64 lat (msec): min=822, max=1540, avg=1131.90, stdev=369.49 clat percentiles (msec): | 1.00th=[ 818], 5.00th=[ 818], 10.00th=[ 818], 20.00th=[ 818], | 30.00th=[ 818], 40.00th=[ 1036], 50.00th=[ 1036], 60.00th=[ 1036], | 70.00th=[ 1536], 80.00th=[ 1536], 90.00th=[ 1536], 95.00th=[ 1536], | 99.00th=[ 1536], 99.50th=[ 1536], 99.90th=[ 1536], 99.95th=[ 1536], | 99.99th=[ 1536] bw ( KiB/s): min= 8126, max= 8159, per=88.96%, avg=8142.50, stdev=23.33, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=33.33%, 2000=66.67% cpu : usr=0.03%, sys=3.74%, ctx=50, 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=5474KiB/s (5605kB/s), 1380KiB/s-4106KiB/s (1413kB/s-4204kB/s), io=16.0MiB (16.8MB), run=2968-2993msec WRITE: bw=9153KiB/s (9373kB/s), 2760KiB/s-3617KiB/s (2826kB/s-3704kB/s), io=32.0MiB (33.6MB), run=2968-3580msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144131: Mon Aug 24 04:43:43 2026 read: IOPS=0, BW=3279KiB/s (3358kB/s)(12.0MiB/3747msec) clat (msec): min=781, max=1734, avg=1130.40, stdev=524.96 lat (msec): min=781, max=1734, avg=1130.41, stdev=524.96 clat percentiles (msec): | 1.00th=[ 785], 5.00th=[ 785], 10.00th=[ 785], 20.00th=[ 785], | 30.00th=[ 785], 40.00th=[ 877], 50.00th=[ 877], 60.00th=[ 877], | 70.00th=[ 1737], 80.00th=[ 1737], 90.00th=[ 1737], 95.00th=[ 1737], | 99.00th=[ 1737], 99.50th=[ 1737], 99.90th=[ 1737], 99.95th=[ 1737], | 99.99th=[ 1737] bw ( KiB/s): min= 8078, max= 8126, per=100.00%, avg=8102.00, stdev=33.94, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=66.67%, 2000=33.33% cpu : usr=0.00%, sys=3.23%, ctx=70, 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=144132: Mon Aug 24 04:43:43 2026 read: IOPS=0, BW=1649KiB/s (1689kB/s)(4096KiB/2484msec) clat (nsec): min=536138k, max=536138k, avg=536138115.00, stdev= 0.00 lat (nsec): min=536142k, max=536142k, avg=536142008.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 535], 5.00th=[ 535], 10.00th=[ 535], 20.00th=[ 535], | 30.00th=[ 535], 40.00th=[ 535], 50.00th=[ 535], 60.00th=[ 535], | 70.00th=[ 535], 80.00th=[ 535], 90.00th=[ 535], 95.00th=[ 535], | 99.00th=[ 535], 99.50th=[ 535], 99.90th=[ 535], 99.95th=[ 535], | 99.99th=[ 535] bw ( KiB/s): min= 8143, max= 8143, per=100.00%, avg=8143.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3298KiB/s (3377kB/s)(8192KiB/2484msec); 0 zone resets clat (msec): min=695, max=984, avg=839.79, stdev=204.01 lat (msec): min=695, max=984, avg=840.31, stdev=204.23 clat percentiles (msec): | 1.00th=[ 693], 5.00th=[ 693], 10.00th=[ 693], 20.00th=[ 693], | 30.00th=[ 693], 40.00th=[ 693], 50.00th=[ 693], 60.00th=[ 986], | 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= 8078, max= 8078, per=100.00%, avg=8078.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=66.67%, 1000=33.33% cpu : usr=0.00%, sys=6.93%, ctx=55, 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=144133: Mon Aug 24 04:43:43 2026 write: IOPS=0, BW=2623KiB/s (2686kB/s)(12.0MiB/4685msec); 0 zone resets clat (msec): min=150, max=3623, avg=1493.02, stdev=1865.99 lat (msec): min=150, max=3624, avg=1493.52, stdev=1866.08 clat percentiles (msec): | 1.00th=[ 150], 5.00th=[ 150], 10.00th=[ 150], 20.00th=[ 150], | 30.00th=[ 150], 40.00th=[ 709], 50.00th=[ 709], 60.00th=[ 709], | 70.00th=[ 3608], 80.00th=[ 3608], 90.00th=[ 3608], 95.00th=[ 3608], | 99.00th=[ 3608], 99.50th=[ 3608], 99.90th=[ 3608], 99.95th=[ 3608], | 99.99th=[ 3608] 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 lat (msec) : 250=33.33%, 750=33.33%, >=2000=33.33% cpu : usr=0.02%, sys=3.42%, ctx=66, majf=0, minf=7 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144134: Mon Aug 24 04:43:43 2026 write: IOPS=0, BW=3577KiB/s (3663kB/s)(12.0MiB/3435msec); 0 zone resets clat (msec): min=542, max=2009, avg=1042.73, stdev=837.64 lat (msec): min=544, max=2010, avg=1043.53, stdev=837.35 clat percentiles (msec): | 1.00th=[ 542], 5.00th=[ 542], 10.00th=[ 542], 20.00th=[ 542], | 30.00th=[ 542], 40.00th=[ 575], 50.00th=[ 575], 60.00th=[ 575], | 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= 8126, max= 8143, per=100.00%, avg=8134.50, stdev=12.02, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=66.67%, >=2000=33.33% cpu : usr=0.09%, sys=3.76%, ctx=55, 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=4373KiB/s (4478kB/s), 1649KiB/s-3279KiB/s (1689kB/s-3358kB/s), io=16.0MiB (16.8MB), run=2484-3747msec WRITE: bw=6994KiB/s (7162kB/s), 2623KiB/s-3577KiB/s (2686kB/s-3663kB/s), io=32.0MiB (33.6MB), run=2484-4685msec