== sanity test 398b: DIO and buffer IO race ============== 17:22:34 (1768256554) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 5.16787 s, 9.7 MB/s mix direct rw 4096 by fio with 4 jobs... mix buffer rw 4096 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=173872: Mon Jan 12 17:24:35 2026 read: IOPS=14, BW=58.0KiB/s (60.4kB/s)(5992KiB/101614msec) clat (usec): min=86, max=800978, avg=34329.13, stdev=32422.54 lat (usec): min=87, max=800980, avg=34330.62, stdev=32422.71 clat percentiles (usec): | 1.00th=[ 131], 5.00th=[ 167], 10.00th=[ 1942], 20.00th=[ 15926], | 30.00th=[ 20055], 40.00th=[ 23725], 50.00th=[ 28443], 60.00th=[ 34341], | 70.00th=[ 41681], 80.00th=[ 50594], 90.00th=[ 64226], 95.00th=[ 76022], | 99.00th=[120062], 99.50th=[152044], 99.90th=[246416], 99.95th=[801113], | 99.99th=[801113] bw ( KiB/s): min= 7, max= 135, per=25.67%, avg=58.78, stdev=24.16, samples=200 iops : min= 1, max= 33, avg=14.04, stdev= 6.08, samples=200 write: IOPS=15, BW=61.0KiB/s (63.4kB/s)(6296KiB/101614msec); 0 zone resets clat (usec): min=852, max=262989, avg=31597.04, stdev=32919.83 lat (usec): min=853, max=262991, avg=31600.30, stdev=32919.35 clat percentiles (usec): | 1.00th=[ 1004], 5.00th=[ 1123], 10.00th=[ 1237], 20.00th=[ 2606], | 30.00th=[ 6063], 40.00th=[ 13566], 50.00th=[ 23462], 60.00th=[ 30802], | 70.00th=[ 41681], 80.00th=[ 56361], 90.00th=[ 76022], 95.00th=[ 95945], | 99.00th=[141558], 99.50th=[164627], 99.90th=[240124], 99.95th=[263193], | 99.99th=[263193] bw ( KiB/s): min= 15, max= 119, per=25.86%, avg=62.07, stdev=22.91, samples=199 iops : min= 3, max= 29, avg=14.86, stdev= 5.77, samples=199 lat (usec) : 100=0.10%, 250=3.91%, 500=0.52%, 750=0.13%, 1000=0.49% lat (msec) : 2=8.56%, 4=4.07%, 10=6.28%, 20=14.45%, 50=39.13% lat (msec) : 100=19.27%, 250=3.03%, 500=0.03%, 1000=0.03% cpu : usr=0.09%, sys=5.43%, ctx=6372, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=173874: Mon Jan 12 17:24:35 2026 read: IOPS=14, BW=56.9KiB/s (58.3kB/s)(5940KiB/104326msec) clat (usec): min=101, max=246562, avg=33986.63, stdev=26275.16 lat (usec): min=102, max=246563, avg=33987.94, stdev=26275.16 clat percentiles (usec): | 1.00th=[ 125], 5.00th=[ 165], 10.00th=[ 619], 20.00th=[ 16057], | 30.00th=[ 20055], 40.00th=[ 23987], 50.00th=[ 28705], 60.00th=[ 34341], | 70.00th=[ 41157], 80.00th=[ 50594], 90.00th=[ 64750], 95.00th=[ 80217], | 99.00th=[130548], 99.50th=[160433], 99.90th=[200279], 99.95th=[246416], | 99.99th=[246416] bw ( KiB/s): min= 7, max= 119, per=24.73%, avg=56.63, stdev=21.37, samples=205 iops : min= 1, max= 29, avg=13.51, stdev= 5.39, samples=205 write: IOPS=15, BW=60.8KiB/s (62.3kB/s)(6348KiB/104326msec); 0 zone resets clat (usec): min=686, max=745182, avg=33659.49, stdev=37916.76 lat (usec): min=687, max=745184, avg=33661.16, stdev=37916.74 clat percentiles (usec): | 1.00th=[ 1037], 5.00th=[ 1139], 10.00th=[ 1237], 20.00th=[ 2769], | 30.00th=[ 6063], 40.00th=[ 15533], 50.00th=[ 25297], 60.00th=[ 36439], | 70.00th=[ 45351], 80.00th=[ 58459], 90.00th=[ 77071], 95.00th=[ 92799], | 99.00th=[141558], 99.50th=[158335], 99.90th=[325059], 99.95th=[742392], | 99.99th=[742392] bw ( KiB/s): min= 7, max= 151, per=25.20%, avg=60.47, stdev=25.23, samples=205 iops : min= 1, max= 37, avg=14.46, stdev= 6.31, samples=205 lat (usec) : 250=4.33%, 500=0.46%, 750=0.16%, 1000=0.36% lat (msec) : 2=8.53%, 4=3.74%, 10=6.61%, 20=13.18%, 50=39.16% lat (msec) : 100=20.35%, 250=3.06%, 500=0.03%, 750=0.03% cpu : usr=0.08%, sys=5.47%, ctx=6424, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=173876: Mon Jan 12 17:24:35 2026 read: IOPS=14, BW=57.7KiB/s (59.1kB/s)(6028KiB/104507msec) clat (usec): min=98, max=298448, avg=33475.56, stdev=25904.89 lat (usec): min=99, max=298449, avg=33476.88, stdev=25904.86 clat percentiles (usec): | 1.00th=[ 131], 5.00th=[ 167], 10.00th=[ 465], 20.00th=[ 15139], | 30.00th=[ 19792], 40.00th=[ 23987], 50.00th=[ 28705], 60.00th=[ 34866], | 70.00th=[ 40633], 80.00th=[ 51119], 90.00th=[ 63701], 95.00th=[ 78119], | 99.00th=[113771], 99.50th=[145753], 99.90th=[210764], 99.95th=[299893], | 99.99th=[299893] bw ( KiB/s): min= 8, max= 120, per=25.23%, avg=57.78, stdev=22.80, samples=203 iops : min= 2, max= 30, avg=13.78, stdev= 5.72, samples=203 write: IOPS=14, BW=59.9KiB/s (61.3kB/s)(6260KiB/104507msec); 0 zone resets clat (usec): min=751, max=836269, avg=34268.90, stdev=39621.51 lat (usec): min=752, max=836344, avg=34274.43, stdev=39619.73 clat percentiles (usec): | 1.00th=[ 1004], 5.00th=[ 1139], 10.00th=[ 1303], 20.00th=[ 3261], | 30.00th=[ 6521], 40.00th=[ 15270], 50.00th=[ 25035], 60.00th=[ 34341], | 70.00th=[ 46924], 80.00th=[ 58983], 90.00th=[ 79168], 95.00th=[ 98042], | 99.00th=[154141], 99.50th=[175113], 99.90th=[248513], 99.95th=[834667], | 99.99th=[834667] bw ( KiB/s): min= 7, max= 128, per=24.81%, avg=59.55, stdev=23.38, samples=204 iops : min= 1, max= 32, avg=14.24, stdev= 5.89, samples=204 lat (usec) : 100=0.07%, 250=4.04%, 500=0.85%, 750=0.23%, 1000=0.59% lat (msec) : 2=7.36%, 4=4.20%, 10=6.97%, 20=13.44%, 50=38.22% lat (msec) : 100=20.80%, 250=3.19%, 500=0.03%, 1000=0.03% cpu : usr=0.06%, sys=5.50%, ctx=6398, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=173877: Mon Jan 12 17:24:35 2026 read: IOPS=14, BW=58.8KiB/s (60.2kB/s)(6052KiB/102890msec) clat (usec): min=99, max=189414, avg=33334.94, stdev=24794.63 lat (usec): min=99, max=189416, avg=33336.40, stdev=24794.60 clat percentiles (usec): | 1.00th=[ 124], 5.00th=[ 159], 10.00th=[ 281], 20.00th=[ 15533], | 30.00th=[ 20317], 40.00th=[ 23987], 50.00th=[ 28705], 60.00th=[ 33817], | 70.00th=[ 41681], 80.00th=[ 50594], 90.00th=[ 62653], 95.00th=[ 77071], | 99.00th=[116917], 99.50th=[133694], 99.90th=[175113], 99.95th=[189793], | 99.99th=[189793] bw ( KiB/s): min= 7, max= 127, per=25.85%, avg=59.19, stdev=22.86, samples=200 iops : min= 1, max= 31, avg=14.14, stdev= 5.75, samples=200 write: IOPS=15, BW=60.6KiB/s (62.1kB/s)(6236KiB/102890msec); 0 zone resets clat (usec): min=693, max=878556, avg=33350.67, stdev=39689.47 lat (usec): min=694, max=878559, avg=33355.25, stdev=39698.19 clat percentiles (usec): | 1.00th=[ 1020], 5.00th=[ 1139], 10.00th=[ 1270], 20.00th=[ 2966], | 30.00th=[ 6849], 40.00th=[ 15795], 50.00th=[ 24249], 60.00th=[ 33817], | 70.00th=[ 44827], 80.00th=[ 57410], 90.00th=[ 77071], 95.00th=[ 93848], | 99.00th=[143655], 99.50th=[179307], 99.90th=[312476], 99.95th=[876610], | 99.99th=[876610] bw ( KiB/s): min= 7, max= 142, per=25.23%, avg=60.55, stdev=23.07, samples=201 iops : min= 1, max= 35, avg=14.48, stdev= 5.79, samples=201 lat (usec) : 100=0.03%, 250=4.79%, 500=0.42%, 750=0.26%, 1000=0.36% lat (msec) : 2=7.62%, 4=4.39%, 10=5.76%, 20=13.41%, 50=40.27% lat (msec) : 100=19.56%, 250=3.06%, 500=0.03%, 1000=0.03% cpu : usr=0.08%, sys=5.53%, ctx=6271, 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=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=230KiB/s (235kB/s), 56.9KiB/s-58.0KiB/s (58.3kB/s-60.4kB/s), io=23.4MiB (24.6MB), run=101614-104507msec WRITE: bw=241KiB/s (246kB/s), 59.9KiB/s-61.0KiB/s (61.3kB/s-63.4kB/s), io=24.6MiB (25.7MB), run=101614-104507msec rand-rw: (groupid=0, jobs=1): err= 0: pid=173870: Mon Jan 12 17:27:34 2026 read: IOPS=5, BW=21.2KiB/s (21.7kB/s)(5992KiB/282863msec) clat (msec): min=4, max=852, avg=38.97, stdev=39.63 lat (msec): min=4, max=852, avg=38.98, stdev=39.63 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 16], | 30.00th=[ 20], 40.00th=[ 24], 50.00th=[ 29], 60.00th=[ 35], | 70.00th=[ 45], 80.00th=[ 57], 90.00th=[ 74], 95.00th=[ 91], | 99.00th=[ 180], 99.50th=[ 239], 99.90th=[ 342], 99.95th=[ 852], | 99.99th=[ 852] bw ( KiB/s): min= 7, max= 79, per=28.10%, avg=23.60, stdev=15.05, samples=490 iops : min= 1, max= 19, avg= 5.29, stdev= 3.80, samples=490 write: IOPS=5, BW=22.3KiB/s (22.8kB/s)(6296KiB/282863msec); 0 zone resets clat (msec): min=32, max=508, avg=142.34, stdev=58.99 lat (msec): min=32, max=508, avg=142.35, stdev=58.99 clat percentiles (msec): | 1.00th=[ 49], 5.00th=[ 67], 10.00th=[ 79], 20.00th=[ 94], | 30.00th=[ 108], 40.00th=[ 121], 50.00th=[ 134], 60.00th=[ 146], | 70.00th=[ 163], 80.00th=[ 184], 90.00th=[ 218], 95.00th=[ 253], | 99.00th=[ 326], 99.50th=[ 347], 99.90th=[ 464], 99.95th=[ 510], | 99.99th=[ 510] bw ( KiB/s): min= 7, max= 55, per=24.63%, avg=21.68, stdev= 8.45, samples=558 iops : min= 1, max= 13, avg= 4.81, stdev= 2.17, samples=558 lat (msec) : 10=2.99%, 20=12.57%, 50=21.52%, 100=22.40%, 250=37.57% lat (msec) : 500=2.90%, 750=0.03%, 1000=0.03% cpu : usr=0.04%, sys=1.13%, ctx=5238, 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=173871: Mon Jan 12 17:27:34 2026 read: IOPS=5, BW=20.0KiB/s (21.5kB/s)(5940KiB/283496msec) clat (msec): min=4, max=779, avg=38.12, stdev=36.52 lat (msec): min=4, max=779, avg=38.12, stdev=36.52 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 20], 40.00th=[ 24], 50.00th=[ 28], 60.00th=[ 34], | 70.00th=[ 44], 80.00th=[ 56], 90.00th=[ 75], 95.00th=[ 94], | 99.00th=[ 142], 99.50th=[ 174], 99.90th=[ 363], 99.95th=[ 776], | 99.99th=[ 776] bw ( KiB/s): min= 7, max= 88, per=28.11%, avg=23.62, stdev=15.90, samples=486 iops : min= 1, max= 22, avg= 5.31, stdev= 4.01, samples=486 write: IOPS=5, BW=22.4KiB/s (22.9kB/s)(6348KiB/283496msec); 0 zone resets clat (msec): min=37, max=532, avg=142.69, stdev=60.77 lat (msec): min=37, max=532, avg=142.70, stdev=60.77 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 66], 10.00th=[ 74], 20.00th=[ 93], | 30.00th=[ 107], 40.00th=[ 121], 50.00th=[ 136], 60.00th=[ 148], | 70.00th=[ 165], 80.00th=[ 188], 90.00th=[ 220], 95.00th=[ 251], | 99.00th=[ 338], 99.50th=[ 384], 99.90th=[ 510], 99.95th=[ 531], | 99.99th=[ 531] bw ( KiB/s): min= 7, max= 48, per=24.80%, avg=21.82, stdev= 8.59, samples=560 iops : min= 1, max= 12, avg= 4.85, stdev= 2.20, samples=560 lat (msec) : 10=2.44%, 20=12.53%, 50=22.43%, 100=22.30%, 250=37.60% lat (msec) : 500=2.60%, 750=0.07%, 1000=0.03% cpu : usr=0.04%, sys=1.15%, ctx=5316, 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=173873: Mon Jan 12 17:27:34 2026 read: IOPS=5, BW=21.2KiB/s (21.7kB/s)(6028KiB/283992msec) clat (msec): min=5, max=348, avg=38.02, stdev=29.68 lat (msec): min=5, max=348, avg=38.03, stdev=29.68 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 20], 40.00th=[ 24], 50.00th=[ 30], 60.00th=[ 36], | 70.00th=[ 45], 80.00th=[ 56], 90.00th=[ 77], 95.00th=[ 93], | 99.00th=[ 136], 99.50th=[ 146], 99.90th=[ 309], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 7, max= 101, per=28.07%, avg=23.58, stdev=15.24, samples=493 iops : min= 1, max= 25, avg= 5.28, stdev= 3.86, samples=493 write: IOPS=5, BW=22.0KiB/s (22.6kB/s)(6260KiB/283992msec); 0 zone resets clat (msec): min=39, max=817, avg=144.59, stdev=61.62 lat (msec): min=39, max=817, avg=144.59, stdev=61.62 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 67], 10.00th=[ 79], 20.00th=[ 95], | 30.00th=[ 109], 40.00th=[ 124], 50.00th=[ 138], 60.00th=[ 150], | 70.00th=[ 167], 80.00th=[ 186], 90.00th=[ 218], 95.00th=[ 253], | 99.00th=[ 326], 99.50th=[ 384], 99.90th=[ 535], 99.95th=[ 818], | 99.99th=[ 818] bw ( KiB/s): min= 7, max= 56, per=24.45%, avg=21.52, stdev= 8.51, samples=558 iops : min= 1, max= 14, avg= 4.76, stdev= 2.19, samples=558 lat (msec) : 10=2.38%, 20=13.57%, 50=21.61%, 100=21.55%, 250=38.22% lat (msec) : 500=2.57%, 750=0.07%, 1000=0.03% cpu : usr=0.04%, sys=1.15%, ctx=5354, 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=173875: Mon Jan 12 17:27:34 2026 read: IOPS=5, BW=21.5KiB/s (22.0kB/s)(6052KiB/281401msec) clat (msec): min=4, max=363, avg=35.91, stdev=29.28 lat (msec): min=4, max=363, avg=35.91, stdev=29.28 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 10], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 20], 40.00th=[ 23], 50.00th=[ 28], 60.00th=[ 34], | 70.00th=[ 42], 80.00th=[ 53], 90.00th=[ 70], 95.00th=[ 86], | 99.00th=[ 130], 99.50th=[ 167], 99.90th=[ 338], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 7, max= 94, per=28.25%, avg=23.73, stdev=15.77, samples=492 iops : min= 1, max= 23, avg= 5.33, stdev= 3.97, samples=492 write: IOPS=5, BW=22.2KiB/s (22.7kB/s)(6236KiB/281401msec); 0 zone resets clat (msec): min=28, max=917, avg=145.38, stdev=65.10 lat (msec): min=28, max=917, avg=145.39, stdev=65.10 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 67], 10.00th=[ 79], 20.00th=[ 93], | 30.00th=[ 107], 40.00th=[ 121], 50.00th=[ 134], 60.00th=[ 150], | 70.00th=[ 167], 80.00th=[ 188], 90.00th=[ 222], 95.00th=[ 262], | 99.00th=[ 351], 99.50th=[ 372], 99.90th=[ 567], 99.95th=[ 919], | 99.99th=[ 919] bw ( KiB/s): min= 7, max= 63, per=24.59%, avg=21.64, stdev= 8.51, samples=554 iops : min= 1, max= 15, avg= 4.81, stdev= 2.17, samples=554 lat (msec) : 10=2.51%, 20=13.54%, 50=23.11%, 100=21.45%, 250=36.33% lat (msec) : 500=2.96%, 750=0.07%, 1000=0.03% cpu : usr=0.04%, sys=1.14%, ctx=5193, 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=84.6KiB/s (86.6kB/s), 20.0KiB/s-21.5KiB/s (21.5kB/s-22.0kB/s), io=23.4MiB (24.6MB), run=281401-283992msec WRITE: bw=88.5KiB/s (90.6kB/s), 22.0KiB/s-22.4KiB/s (22.6kB/s-22.9kB/s), io=24.6MiB (25.7MB), run=281401-283992msec 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=173930: Mon Jan 12 17:28:08 2026 read: IOPS=15, BW=244KiB/s (250kB/s)(5920KiB/24259msec) clat (usec): min=110, max=275704, avg=32520.48, stdev=33426.66 lat (usec): min=111, max=275705, avg=32523.47, stdev=33424.93 clat percentiles (usec): | 1.00th=[ 115], 5.00th=[ 149], 10.00th=[ 169], 20.00th=[ 416], | 30.00th=[ 16450], 40.00th=[ 22152], 50.00th=[ 27395], 60.00th=[ 33162], | 70.00th=[ 39584], 80.00th=[ 49546], 90.00th=[ 64226], 95.00th=[ 86508], | 99.00th=[196084], 99.50th=[219153], 99.90th=[274727], 99.95th=[274727], | 99.99th=[274727] bw ( KiB/s): min= 64, max= 476, per=24.33%, avg=240.11, stdev=93.06, samples=47 iops : min= 4, max= 29, avg=14.32, stdev= 5.82, samples=47 write: IOPS=16, BW=263KiB/s (269kB/s)(6368KiB/24259msec); 0 zone resets clat (usec): min=1315, max=204884, avg=29728.62, stdev=32365.97 lat (usec): min=1317, max=204887, avg=29732.50, stdev=32367.80 clat percentiles (usec): | 1.00th=[ 1450], 5.00th=[ 1663], 10.00th=[ 1827], 20.00th=[ 3720], | 30.00th=[ 6587], 40.00th=[ 11076], 50.00th=[ 18482], 60.00th=[ 29492], | 70.00th=[ 35914], 80.00th=[ 52167], 90.00th=[ 72877], 95.00th=[ 93848], | 99.00th=[149947], 99.50th=[173016], 99.90th=[204473], 99.95th=[204473], | 99.99th=[204473] bw ( KiB/s): min= 23, max= 603, per=25.28%, avg=262.36, stdev=115.06, samples=47 iops : min= 1, max= 37, avg=15.70, stdev= 7.15, samples=47 lat (usec) : 250=8.72%, 500=0.91%, 750=0.39%, 1000=0.26% lat (msec) : 2=6.25%, 4=5.47%, 10=10.42%, 20=11.20%, 50=36.20% lat (msec) : 100=16.80%, 250=3.26%, 500=0.13% cpu : usr=0.08%, sys=6.27%, ctx=1458, 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=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=173931: Mon Jan 12 17:28:08 2026 read: IOPS=15, BW=249KiB/s (255kB/s)(5744KiB/23074msec) clat (usec): min=104, max=128702, avg=30763.29, stdev=24610.08 lat (usec): min=106, max=128702, avg=30778.15, stdev=24609.67 clat percentiles (usec): | 1.00th=[ 116], 5.00th=[ 143], 10.00th=[ 161], 20.00th=[ 221], | 30.00th=[ 16450], 40.00th=[ 23725], 50.00th=[ 30540], 60.00th=[ 36963], | 70.00th=[ 42730], 80.00th=[ 51119], 90.00th=[ 61080], 95.00th=[ 73925], | 99.00th=[101188], 99.50th=[101188], 99.90th=[128451], 99.95th=[128451], | 99.99th=[128451] bw ( KiB/s): min= 23, max= 508, per=25.25%, avg=249.20, stdev=97.25, samples=45 iops : min= 1, max= 31, avg=14.89, stdev= 6.07, samples=45 write: IOPS=17, BW=284KiB/s (290kB/s)(6544KiB/23074msec); 0 zone resets clat (usec): min=1159, max=266061, avg=28444.53, stdev=33378.38 lat (usec): min=1161, max=266063, avg=28451.97, stdev=33379.91 clat percentiles (usec): | 1.00th=[ 1385], 5.00th=[ 1598], 10.00th=[ 1745], 20.00th=[ 3163], | 30.00th=[ 5473], 40.00th=[ 9110], 50.00th=[ 15926], 60.00th=[ 24773], | 70.00th=[ 34866], 80.00th=[ 52691], 90.00th=[ 70779], 95.00th=[ 89654], | 99.00th=[145753], 99.50th=[168821], 99.90th=[265290], 99.95th=[265290], | 99.99th=[265290] bw ( KiB/s): min= 69, max= 636, per=27.42%, avg=284.60, stdev=114.41, samples=45 iops : min= 4, max= 39, avg=17.13, stdev= 7.12, samples=45 lat (usec) : 250=9.90%, 500=0.52%, 750=0.39%, 1000=0.26% lat (msec) : 2=8.46%, 4=5.34%, 10=9.51%, 20=10.81%, 50=33.33% lat (msec) : 100=19.01%, 250=2.34%, 500=0.13% cpu : usr=0.10%, sys=6.31%, ctx=1348, 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=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=173932: Mon Jan 12 17:28:08 2026 read: IOPS=16, BW=266KiB/s (272kB/s)(6256KiB/23521msec) clat (usec): min=107, max=143398, avg=32036.10, stdev=26333.52 lat (usec): min=108, max=143398, avg=32043.51, stdev=26338.23 clat percentiles (usec): | 1.00th=[ 115], 5.00th=[ 137], 10.00th=[ 155], 20.00th=[ 326], | 30.00th=[ 20317], 40.00th=[ 24511], 50.00th=[ 28181], 60.00th=[ 33162], | 70.00th=[ 41681], 80.00th=[ 52167], 90.00th=[ 65799], 95.00th=[ 79168], | 99.00th=[121111], 99.50th=[137364], 99.90th=[143655], 99.95th=[143655], | 99.99th=[143655] bw ( KiB/s): min= 93, max= 403, per=27.15%, avg=268.00, stdev=73.18, samples=46 iops : min= 5, max= 25, avg=16.07, stdev= 4.59, samples=46 write: IOPS=16, BW=256KiB/s (263kB/s)(6032KiB/23521msec); 0 zone resets clat (usec): min=1201, max=330732, avg=28206.06, stdev=32331.98 lat (usec): min=1203, max=330733, avg=28208.09, stdev=32331.92 clat percentiles (usec): | 1.00th=[ 1401], 5.00th=[ 1582], 10.00th=[ 1811], 20.00th=[ 3359], | 30.00th=[ 6718], 40.00th=[ 10552], 50.00th=[ 15533], 60.00th=[ 26346], | 70.00th=[ 36963], 80.00th=[ 50070], 90.00th=[ 66323], 95.00th=[ 88605], | 99.00th=[127402], 99.50th=[152044], 99.90th=[329253], 99.95th=[329253], | 99.99th=[329253] bw ( KiB/s): min= 94, max= 506, per=24.62%, avg=255.52, stdev=85.45, samples=46 iops : min= 5, max= 31, avg=15.28, stdev= 5.34, samples=46 lat (usec) : 250=9.90%, 500=0.65%, 750=0.13% lat (msec) : 2=7.16%, 4=4.95%, 10=8.07%, 20=10.29%, 50=37.50% lat (msec) : 100=19.14%, 250=2.08%, 500=0.13% cpu : usr=0.10%, sys=6.35%, ctx=1426, 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=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=173933: Mon Jan 12 17:28:08 2026 read: IOPS=16, BW=256KiB/s (262kB/s)(6032KiB/23554msec) clat (usec): min=92, max=253970, avg=32913.42, stdev=30080.10 lat (usec): min=93, max=253970, avg=32914.53, stdev=30080.09 clat percentiles (usec): | 1.00th=[ 113], 5.00th=[ 147], 10.00th=[ 165], 20.00th=[ 400], | 30.00th=[ 18744], 40.00th=[ 24249], 50.00th=[ 30802], 60.00th=[ 35914], | 70.00th=[ 43779], 80.00th=[ 52691], 90.00th=[ 64750], 95.00th=[ 78119], | 99.00th=[115868], 99.50th=[238027], 99.90th=[254804], 99.95th=[254804], | 99.99th=[254804] bw ( KiB/s): min= 63, max= 465, per=25.83%, avg=254.93, stdev=89.62, samples=46 iops : min= 3, max= 29, avg=15.26, stdev= 5.70, samples=46 write: IOPS=16, BW=266KiB/s (272kB/s)(6256KiB/23554msec); 0 zone resets clat (usec): min=1329, max=167920, avg=28172.28, stdev=29094.72 lat (usec): min=1331, max=167923, avg=28176.30, stdev=29096.78 clat percentiles (usec): | 1.00th=[ 1434], 5.00th=[ 1647], 10.00th=[ 2376], 20.00th=[ 4490], | 30.00th=[ 6718], 40.00th=[ 10159], 50.00th=[ 17433], 60.00th=[ 26870], | 70.00th=[ 35914], 80.00th=[ 49021], 90.00th=[ 67634], 95.00th=[ 88605], | 99.00th=[133694], 99.50th=[139461], 99.90th=[168821], 99.95th=[168821], | 99.99th=[168821] bw ( KiB/s): min= 94, max= 572, per=25.73%, avg=267.09, stdev=92.94, samples=46 iops : min= 5, max= 35, avg=16.00, stdev= 5.92, samples=46 lat (usec) : 100=0.13%, 250=8.85%, 500=1.17%, 750=0.52% lat (msec) : 2=5.34%, 4=5.08%, 10=11.07%, 20=9.38%, 50=37.63% lat (msec) : 100=18.49%, 250=2.21%, 500=0.13% cpu : usr=0.09%, sys=6.53%, ctx=1456, 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=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=987KiB/s (1011kB/s), 244KiB/s-266KiB/s (250kB/s-272kB/s), io=23.4MiB (24.5MB), run=23074-24259msec WRITE: bw=1039KiB/s (1064kB/s), 256KiB/s-284KiB/s (263kB/s-290kB/s), io=24.6MiB (25.8MB), run=23074-24259msec rand-rw: (groupid=0, jobs=1): err= 0: pid=173934: Mon Jan 12 17:28:46 2026 read: IOPS=6, BW=96.5KiB/s (98.8kB/s)(5920KiB/61378msec) clat (msec): min=7, max=375, avg=34.06, stdev=35.77 lat (msec): min=7, max=375, avg=34.06, stdev=35.77 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 19], 50.00th=[ 22], 60.00th=[ 28], | 70.00th=[ 35], 80.00th=[ 48], 90.00th=[ 69], 95.00th=[ 96], | 99.00th=[ 188], 99.50th=[ 224], 99.90th=[ 376], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 31, max= 383, per=26.63%, avg=102.51, stdev=65.57, samples=113 iops : min= 1, max= 23, avg= 5.67, stdev= 4.17, samples=113 write: IOPS=6, BW=104KiB/s (106kB/s)(6368KiB/61378msec); 0 zone resets clat (msec): min=46, max=370, avg=121.85, stdev=53.36 lat (msec): min=46, max=370, avg=121.85, stdev=53.36 clat percentiles (msec): | 1.00th=[ 52], 5.00th=[ 62], 10.00th=[ 69], 20.00th=[ 79], | 30.00th=[ 88], 40.00th=[ 99], 50.00th=[ 109], 60.00th=[ 123], | 70.00th=[ 138], 80.00th=[ 157], 90.00th=[ 194], 95.00th=[ 239], | 99.00th=[ 296], 99.50th=[ 342], 99.90th=[ 372], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 21, max= 219, per=25.77%, avg=104.38, stdev=41.98, samples=120 iops : min= 1, max= 13, avg= 5.79, stdev= 2.69, samples=120 lat (msec) : 10=3.65%, 20=17.97%, 50=17.97%, 100=27.99%, 250=30.34% lat (msec) : 500=2.08% cpu : usr=0.06%, sys=1.39%, ctx=1460, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=173935: Mon Jan 12 17:28:46 2026 read: IOPS=5, BW=92.5KiB/s (94.7kB/s)(5744KiB/62122msec) clat (msec): min=5, max=236, avg=34.99, stdev=35.27 lat (msec): min=5, max=236, avg=34.99, stdev=35.27 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 18], 50.00th=[ 22], 60.00th=[ 28], | 70.00th=[ 35], 80.00th=[ 50], 90.00th=[ 81], 95.00th=[ 108], | 99.00th=[ 194], 99.50th=[ 218], 99.90th=[ 236], 99.95th=[ 236], | 99.99th=[ 236] bw ( KiB/s): min= 21, max= 318, per=25.65%, avg=98.75, stdev=58.77, samples=113 iops : min= 1, max= 19, avg= 5.44, stdev= 3.70, samples=113 write: IOPS=6, BW=105KiB/s (108kB/s)(6544KiB/62122msec); 0 zone resets clat (msec): min=38, max=457, avg=121.00, stdev=53.35 lat (msec): min=38, max=457, avg=121.02, stdev=53.35 clat percentiles (msec): | 1.00th=[ 44], 5.00th=[ 55], 10.00th=[ 65], 20.00th=[ 80], | 30.00th=[ 92], 40.00th=[ 102], 50.00th=[ 113], 60.00th=[ 122], | 70.00th=[ 138], 80.00th=[ 150], 90.00th=[ 182], 95.00th=[ 230], | 99.00th=[ 300], 99.50th=[ 313], 99.90th=[ 460], 99.95th=[ 460], | 99.99th=[ 460] bw ( KiB/s): min= 31, max= 254, per=25.87%, avg=104.77, stdev=45.72, samples=121 iops : min= 1, max= 15, avg= 5.83, stdev= 2.94, samples=121 lat (msec) : 10=4.17%, 20=16.93%, 50=17.97%, 100=25.65%, 250=33.59% lat (msec) : 500=1.69% cpu : usr=0.04%, sys=1.36%, ctx=1401, 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=173936: Mon Jan 12 17:28:46 2026 read: IOPS=6, BW=104KiB/s (106kB/s)(6256KiB/60196msec) clat (msec): min=6, max=454, avg=33.67, stdev=35.15 lat (msec): min=6, max=454, avg=33.67, stdev=35.15 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 19], 50.00th=[ 23], 60.00th=[ 29], | 70.00th=[ 35], 80.00th=[ 50], 90.00th=[ 71], 95.00th=[ 93], | 99.00th=[ 153], 99.50th=[ 190], 99.90th=[ 456], 99.95th=[ 456], | 99.99th=[ 456] bw ( KiB/s): min= 31, max= 349, per=28.61%, avg=110.14, stdev=76.34, samples=112 iops : min= 1, max= 21, avg= 6.14, stdev= 4.87, samples=112 write: IOPS=6, BW=100KiB/s (103kB/s)(6032KiB/60196msec); 0 zone resets clat (msec): min=45, max=345, avg=123.75, stdev=50.70 lat (msec): min=45, max=345, avg=123.76, stdev=50.70 clat percentiles (msec): | 1.00th=[ 54], 5.00th=[ 64], 10.00th=[ 71], 20.00th=[ 83], | 30.00th=[ 93], 40.00th=[ 105], 50.00th=[ 114], 60.00th=[ 123], | 70.00th=[ 138], 80.00th=[ 157], 90.00th=[ 192], 95.00th=[ 228], | 99.00th=[ 296], 99.50th=[ 313], 99.90th=[ 347], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 21, max= 160, per=24.82%, avg=100.52, stdev=37.30, samples=117 iops : min= 1, max= 10, avg= 5.55, stdev= 2.38, samples=117 lat (msec) : 10=4.56%, 20=17.97%, 50=18.49%, 100=25.26%, 250=31.77% lat (msec) : 500=1.95% cpu : usr=0.05%, sys=1.48%, ctx=1478, 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=173937: Mon Jan 12 17:28:46 2026 read: IOPS=6, BW=99.9KiB/s (102kB/s)(6032KiB/60394msec) clat (msec): min=5, max=192, avg=32.23, stdev=30.69 lat (msec): min=5, max=192, avg=32.24, stdev=30.69 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 12], | 30.00th=[ 15], 40.00th=[ 18], 50.00th=[ 21], 60.00th=[ 25], | 70.00th=[ 32], 80.00th=[ 45], 90.00th=[ 79], 95.00th=[ 100], | 99.00th=[ 150], 99.50th=[ 180], 99.90th=[ 192], 99.95th=[ 192], | 99.99th=[ 192] bw ( KiB/s): min= 30, max= 313, per=28.12%, avg=108.27, stdev=68.10, samples=109 iops : min= 1, max= 19, avg= 6.04, stdev= 4.33, samples=109 write: IOPS=6, BW=104KiB/s (106kB/s)(6256KiB/60394msec); 0 zone resets clat (msec): min=35, max=556, avg=122.64, stdev=54.56 lat (msec): min=35, max=556, avg=122.64, stdev=54.56 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 62], 10.00th=[ 69], 20.00th=[ 83], | 30.00th=[ 93], 40.00th=[ 102], 50.00th=[ 110], 60.00th=[ 123], | 70.00th=[ 136], 80.00th=[ 153], 90.00th=[ 194], 95.00th=[ 224], | 99.00th=[ 326], 99.50th=[ 368], 99.90th=[ 558], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 30, max= 191, per=25.49%, avg=103.24, stdev=40.80, samples=119 iops : min= 1, max= 11, avg= 5.71, stdev= 2.63, samples=119 lat (msec) : 10=5.34%, 20=17.58%, 50=18.23%, 100=25.52%, 250=32.16% lat (msec) : 500=1.04%, 750=0.13% cpu : usr=0.06%, sys=1.35%, ctx=1319, 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=386KiB/s (395kB/s), 92.5KiB/s-104KiB/s (94.7kB/s-106kB/s), io=23.4MiB (24.5MB), run=60196-62122msec WRITE: bw=406KiB/s (415kB/s), 100KiB/s-105KiB/s (103kB/s-108kB/s), io=24.6MiB (25.8MB), run=60196-62122msec 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=173954: Mon Jan 12 17:29:00 2026 read: IOPS=1, BW=1882KiB/s (1927kB/s)(7168KiB/3809msec) clat (msec): min=41, max=351, avg=211.15, stdev=105.08 lat (msec): min=41, max=351, avg=211.15, stdev=105.08 clat percentiles (msec): | 1.00th=[ 42], 5.00th=[ 42], 10.00th=[ 42], 20.00th=[ 140], | 30.00th=[ 163], 40.00th=[ 163], 50.00th=[ 220], 60.00th=[ 275], | 70.00th=[ 275], 80.00th=[ 292], 90.00th=[ 351], 95.00th=[ 351], | 99.00th=[ 351], 99.50th=[ 351], 99.90th=[ 351], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 1965, max= 4087, per=62.38%, avg=2732.75, stdev=987.03, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 write: IOPS=1, BW=1344KiB/s (1376kB/s)(5120KiB/3809msec); 0 zone resets clat (msec): min=238, max=736, avg=438.07, stdev=223.32 lat (msec): min=238, max=736, avg=438.64, stdev=223.09 clat percentiles (msec): | 1.00th=[ 239], 5.00th=[ 239], 10.00th=[ 239], 20.00th=[ 239], | 30.00th=[ 253], 40.00th=[ 253], 50.00th=[ 351], 60.00th=[ 351], | 70.00th=[ 609], 80.00th=[ 609], 90.00th=[ 735], 95.00th=[ 735], | 99.00th=[ 735], 99.50th=[ 735], 99.90th=[ 735], 99.95th=[ 735], | 99.99th=[ 735] bw ( KiB/s): min= 1812, max= 2035, per=31.97%, avg=1960.75, stdev=104.23, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 lat (msec) : 50=8.33%, 250=33.33%, 500=41.67%, 750=16.67% cpu : usr=0.00%, sys=14.44%, ctx=173, 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=173955: Mon Jan 12 17:29:00 2026 read: IOPS=0, BW=438KiB/s (449kB/s)(2048KiB/4674msec) clat (msec): min=335, max=352, avg=344.09, stdev=11.91 lat (msec): min=335, max=352, avg=344.10, stdev=11.91 clat percentiles (msec): | 1.00th=[ 338], 5.00th=[ 338], 10.00th=[ 338], 20.00th=[ 338], | 30.00th=[ 338], 40.00th=[ 338], 50.00th=[ 338], 60.00th=[ 355], | 70.00th=[ 355], 80.00th=[ 355], 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= 1484, max= 1812, per=37.62%, avg=1648.00, stdev=231.93, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2191KiB/s (2243kB/s)(10.0MiB/4674msec); 0 zone resets clat (msec): min=144, max=629, avg=378.35, stdev=184.43 lat (msec): min=144, max=629, avg=378.47, stdev=184.46 clat percentiles (msec): | 1.00th=[ 144], 5.00th=[ 144], 10.00th=[ 144], 20.00th=[ 176], | 30.00th=[ 207], 40.00th=[ 247], 50.00th=[ 355], 60.00th=[ 363], | 70.00th=[ 502], 80.00th=[ 550], 90.00th=[ 609], 95.00th=[ 634], | 99.00th=[ 634], 99.50th=[ 634], 99.90th=[ 634], 99.95th=[ 634], | 99.99th=[ 634] bw ( KiB/s): min= 1812, max= 6131, per=51.88%, avg=3182.20, stdev=1870.03, samples=5 iops : min= 1, max= 5, avg= 2.20, stdev= 1.79, samples=5 lat (msec) : 250=33.33%, 500=33.33%, 750=33.33% cpu : usr=0.06%, sys=13.10%, ctx=192, 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=173956: Mon Jan 12 17:29:00 2026 read: IOPS=1, BW=1615KiB/s (1654kB/s)(6144KiB/3804msec) clat (usec): min=610, max=643163, avg=241118.29, stdev=242149.02 lat (usec): min=611, max=643164, avg=241119.56, stdev=242149.36 clat percentiles (usec): | 1.00th=[ 611], 5.00th=[ 611], 10.00th=[ 611], 20.00th=[ 1762], | 30.00th=[ 1762], 40.00th=[214959], 50.00th=[214959], 60.00th=[221250], | 70.00th=[367002], 80.00th=[367002], 90.00th=[641729], 95.00th=[641729], | 99.00th=[641729], 99.50th=[641729], 99.90th=[641729], 99.95th=[641729], | 99.99th=[641729] bw ( KiB/s): min= 2031, max= 6131, per=77.59%, avg=3399.00, stdev=2365.98, samples=3 iops : min= 1, max= 5, avg= 2.33, stdev= 2.31, samples=3 write: IOPS=1, BW=1615KiB/s (1654kB/s)(6144KiB/3804msec); 0 zone resets clat (msec): min=171, max=711, avg=384.94, stdev=224.67 lat (msec): min=171, max=712, avg=385.04, stdev=224.69 clat percentiles (msec): | 1.00th=[ 171], 5.00th=[ 171], 10.00th=[ 171], 20.00th=[ 207], | 30.00th=[ 207], 40.00th=[ 300], 50.00th=[ 300], 60.00th=[ 300], | 70.00th=[ 617], 80.00th=[ 617], 90.00th=[ 709], 95.00th=[ 709], | 99.00th=[ 709], 99.50th=[ 709], 99.90th=[ 709], 99.95th=[ 709], | 99.99th=[ 709] bw ( KiB/s): min= 1812, max= 4087, per=45.02%, avg=2761.50, stdev=1050.26, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 lat (usec) : 750=8.33% lat (msec) : 2=8.33%, 250=33.33%, 500=25.00%, 750=25.00% cpu : usr=0.00%, sys=11.28%, ctx=170, 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=173957: Mon Jan 12 17:29:00 2026 read: IOPS=1, BW=1445KiB/s (1479kB/s)(5120KiB/3544msec) clat (usec): min=528, max=302662, avg=116035.76, stdev=146457.31 lat (usec): min=529, max=302664, avg=116037.55, stdev=146457.89 clat percentiles (usec): | 1.00th=[ 529], 5.00th=[ 529], 10.00th=[ 529], 20.00th=[ 529], | 30.00th=[ 4817], 40.00th=[ 4817], 50.00th=[ 25560], 60.00th=[ 25560], | 70.00th=[246416], 80.00th=[246416], 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= 8126, max= 8126, per=100.00%, avg=8126.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=1, BW=2023KiB/s (2071kB/s)(7168KiB/3544msec); 0 zone resets clat (msec): min=192, max=828, avg=419.82, stdev=249.03 lat (msec): min=192, max=828, avg=419.90, stdev=249.06 clat percentiles (msec): | 1.00th=[ 192], 5.00th=[ 192], 10.00th=[ 192], 20.00th=[ 215], | 30.00th=[ 236], 40.00th=[ 236], 50.00th=[ 330], 60.00th=[ 456], | 70.00th=[ 456], 80.00th=[ 684], 90.00th=[ 827], 95.00th=[ 827], | 99.00th=[ 827], 99.50th=[ 827], 99.90th=[ 827], 99.95th=[ 827], | 99.99th=[ 827] bw ( KiB/s): min= 1460, max= 4087, per=36.38%, avg=2231.67, stdev=934.23, samples=6 iops : min= 1, max= 3, avg= 1.33, stdev= 0.82, samples=6 lat (usec) : 750=8.33% lat (msec) : 10=8.33%, 50=8.33%, 250=33.33%, 500=25.00%, 750=8.33% lat (msec) : 1000=8.33% cpu : usr=0.00%, sys=14.65%, ctx=141, 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=4382KiB/s (4487kB/s), 438KiB/s-1882KiB/s (449kB/s-1927kB/s), io=20.0MiB (20.0MB), run=3544-4674msec WRITE: bw=6134KiB/s (6282kB/s), 1344KiB/s-2191KiB/s (1376kB/s-2243kB/s), io=28.0MiB (29.4MB), run=3544-4674msec rand-rw: (groupid=0, jobs=1): err= 0: pid=173959: Mon Jan 12 17:29:01 2026 read: IOPS=1, BW=1417KiB/s (1451kB/s)(7168KiB/5060msec) clat (msec): min=99, max=998, avg=343.02, stdev=329.48 lat (msec): min=99, max=998, avg=343.02, stdev=329.48 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 100], 10.00th=[ 100], 20.00th=[ 127], | 30.00th=[ 132], 40.00th=[ 132], 50.00th=[ 136], 60.00th=[ 426], | 70.00th=[ 426], 80.00th=[ 489], 90.00th=[ 1003], 95.00th=[ 1003], | 99.00th=[ 1003], 99.50th=[ 1003], 99.90th=[ 1003], 99.95th=[ 1003], | 99.99th=[ 1003] bw ( KiB/s): min= 1321, max= 2027, per=47.61%, avg=1871.00, stdev=280.59, samples=6 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=6 write: IOPS=0, BW=1012KiB/s (1036kB/s)(5120KiB/5060msec); 0 zone resets clat (msec): min=150, max=895, avg=511.89, stdev=272.81 lat (msec): min=150, max=895, avg=512.00, stdev=272.82 clat percentiles (msec): | 1.00th=[ 150], 5.00th=[ 150], 10.00th=[ 150], 20.00th=[ 150], | 30.00th=[ 393], 40.00th=[ 393], 50.00th=[ 558], 60.00th=[ 558], | 70.00th=[ 567], 80.00th=[ 567], 90.00th=[ 894], 95.00th=[ 894], | 99.00th=[ 894], 99.50th=[ 894], 99.90th=[ 894], 99.95th=[ 894], | 99.99th=[ 894] bw ( KiB/s): min= 2003, max= 2043, per=36.71%, avg=2020.00, stdev=18.58, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 lat (msec) : 100=8.33%, 250=33.33%, 500=25.00%, 750=16.67%, 1000=16.67% cpu : usr=0.00%, sys=3.78%, ctx=83, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=173960: Mon Jan 12 17:29:01 2026 read: IOPS=0, BW=393KiB/s (403kB/s)(2048KiB/5210msec) clat (msec): min=211, max=282, avg=247.04, stdev=49.81 lat (msec): min=211, max=282, avg=247.04, stdev=49.81 clat percentiles (msec): | 1.00th=[ 213], 5.00th=[ 213], 10.00th=[ 213], 20.00th=[ 213], | 30.00th=[ 213], 40.00th=[ 213], 50.00th=[ 213], 60.00th=[ 284], | 70.00th=[ 284], 80.00th=[ 284], 90.00th=[ 284], 95.00th=[ 284], | 99.00th=[ 284], 99.50th=[ 284], 99.90th=[ 284], 99.95th=[ 284], | 99.99th=[ 284] bw ( KiB/s): min= 2035, max= 2043, per=51.88%, avg=2039.00, stdev= 5.66, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1965KiB/s (2013kB/s)(10.0MiB/5210msec); 0 zone resets clat (msec): min=145, max=1099, avg=456.85, stdev=302.10 lat (msec): min=145, max=1100, avg=458.07, stdev=301.53 clat percentiles (msec): | 1.00th=[ 146], 5.00th=[ 146], 10.00th=[ 146], 20.00th=[ 157], | 30.00th=[ 197], 40.00th=[ 317], 50.00th=[ 347], 60.00th=[ 401], | 70.00th=[ 527], 80.00th=[ 651], 90.00th=[ 735], 95.00th=[ 1099], | 99.00th=[ 1099], 99.50th=[ 1099], 99.90th=[ 1099], 99.95th=[ 1099], | 99.99th=[ 1099] bw ( KiB/s): min= 2000, max= 4055, per=46.30%, avg=2547.86, stdev=897.19, samples=7 iops : min= 1, max= 3, avg= 1.57, stdev= 0.98, samples=7 lat (msec) : 250=33.33%, 500=33.33%, 750=25.00%, 2000=8.33% cpu : usr=0.00%, sys=4.13%, ctx=80, 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=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=173961: Mon Jan 12 17:29:01 2026 read: IOPS=1, BW=1254KiB/s (1284kB/s)(6144KiB/4900msec) clat (msec): min=109, max=573, avg=221.48, stdev=175.42 lat (msec): min=109, max=573, avg=221.48, stdev=175.43 clat percentiles (msec): | 1.00th=[ 110], 5.00th=[ 110], 10.00th=[ 110], 20.00th=[ 124], | 30.00th=[ 124], 40.00th=[ 153], 50.00th=[ 153], 60.00th=[ 176], | 70.00th=[ 197], 80.00th=[ 197], 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= 1984, max= 4071, per=64.21%, avg=2523.50, stdev=1031.93, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1254KiB/s (1284kB/s)(6144KiB/4900msec); 0 zone resets clat (msec): min=206, max=1014, avg=567.60, stdev=348.88 lat (msec): min=206, max=1014, avg=567.72, stdev=348.86 clat percentiles (msec): | 1.00th=[ 207], 5.00th=[ 207], 10.00th=[ 207], 20.00th=[ 249], | 30.00th=[ 249], 40.00th=[ 330], 50.00th=[ 330], 60.00th=[ 751], | 70.00th=[ 860], 80.00th=[ 860], 90.00th=[ 1011], 95.00th=[ 1011], | 99.00th=[ 1011], 99.50th=[ 1011], 99.90th=[ 1011], 99.95th=[ 1011], | 99.99th=[ 1011] bw ( KiB/s): min= 1903, max= 2039, per=35.89%, avg=1975.00, stdev=64.58, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 250=58.33%, 500=8.33%, 750=16.67%, 1000=8.33%, 2000=8.33% cpu : usr=0.00%, sys=3.43%, ctx=76, 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=173962: Mon Jan 12 17:29:01 2026 read: IOPS=1, BW=1106KiB/s (1133kB/s)(5120KiB/4629msec) clat (msec): min=107, max=651, avg=271.82, stdev=220.73 lat (msec): min=107, max=651, avg=271.82, stdev=220.73 clat percentiles (msec): | 1.00th=[ 108], 5.00th=[ 108], 10.00th=[ 108], 20.00th=[ 108], | 30.00th=[ 130], 40.00th=[ 130], 50.00th=[ 215], 60.00th=[ 215], | 70.00th=[ 257], 80.00th=[ 257], 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= 1822, max= 6107, per=100.00%, avg=3964.50, stdev=3029.95, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=1, BW=1548KiB/s (1586kB/s)(7168KiB/4629msec); 0 zone resets clat (msec): min=228, max=997, avg=424.62, stdev=269.30 lat (msec): min=228, max=997, avg=424.70, stdev=269.30 clat percentiles (msec): | 1.00th=[ 230], 5.00th=[ 230], 10.00th=[ 230], 20.00th=[ 271], | 30.00th=[ 296], 40.00th=[ 296], 50.00th=[ 317], 60.00th=[ 338], | 70.00th=[ 338], 80.00th=[ 523], 90.00th=[ 995], 95.00th=[ 995], | 99.00th=[ 995], 99.50th=[ 995], 99.90th=[ 995], 99.95th=[ 995], | 99.99th=[ 995] bw ( KiB/s): min= 1914, max= 4087, per=43.83%, avg=2411.80, stdev=937.68, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (msec) : 250=33.33%, 500=41.67%, 750=16.67%, 1000=8.33% cpu : usr=0.00%, sys=4.56%, ctx=118, 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=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=3931KiB/s (4025kB/s), 393KiB/s-1417KiB/s (403kB/s-1451kB/s), io=20.0MiB (20.0MB), run=4629-5210msec WRITE: bw=5503KiB/s (5635kB/s), 1012KiB/s-1965KiB/s (1036kB/s-2013kB/s), io=28.0MiB (29.4MB), run=4629-5210msec 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=173968: Mon Jan 12 17:29:16 2026 read: IOPS=1, BW=4759KiB/s (4873kB/s)(12.0MiB/2582msec) clat (msec): min=733, max=914, avg=832.40, stdev=91.98 lat (msec): min=733, max=914, avg=832.40, stdev=91.98 clat percentiles (msec): | 1.00th=[ 735], 5.00th=[ 735], 10.00th=[ 735], 20.00th=[ 735], | 30.00th=[ 735], 40.00th=[ 852], 50.00th=[ 852], 60.00th=[ 852], | 70.00th=[ 919], 80.00th=[ 919], 90.00th=[ 919], 95.00th=[ 919], | 99.00th=[ 919], 99.50th=[ 919], 99.90th=[ 919], 99.95th=[ 919], | 99.99th=[ 919] bw ( KiB/s): min= 7907, max= 8175, per=100.00%, avg=8041.00, stdev=189.50, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 1000=66.67% cpu : usr=0.00%, sys=11.31%, ctx=207, 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=173970: Mon Jan 12 17:29:16 2026 read: IOPS=0, BW=1415KiB/s (1449kB/s)(4096KiB/2895msec) clat (nsec): min=763544k, max=763544k, avg=763543946.00, stdev= 0.00 lat (nsec): min=763546k, max=763546k, avg=763546313.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 768], 5.00th=[ 768], 10.00th=[ 768], 20.00th=[ 768], | 30.00th=[ 768], 40.00th=[ 768], 50.00th=[ 768], 60.00th=[ 768], | 70.00th=[ 768], 80.00th=[ 768], 90.00th=[ 768], 95.00th=[ 768], | 99.00th=[ 768], 99.50th=[ 768], 99.90th=[ 768], 99.95th=[ 768], | 99.99th=[ 768] bw ( KiB/s): min= 7907, max= 7907, per=100.00%, avg=7907.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2830KiB/s (2898kB/s)(8192KiB/2895msec); 0 zone resets clat (msec): min=410, max=1676, avg=1043.53, stdev=895.47 lat (msec): min=410, max=1676, avg=1043.84, stdev=895.37 clat percentiles (msec): | 1.00th=[ 409], 5.00th=[ 409], 10.00th=[ 409], 20.00th=[ 409], | 30.00th=[ 409], 40.00th=[ 409], 50.00th=[ 409], 60.00th=[ 1670], | 70.00th=[ 1670], 80.00th=[ 1670], 90.00th=[ 1670], 95.00th=[ 1670], | 99.00th=[ 1670], 99.50th=[ 1670], 99.90th=[ 1670], 99.95th=[ 1670], | 99.99th=[ 1670] bw ( KiB/s): min= 8175, max= 8175, per=79.59%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=4.80%, ctx=195, 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=173971: Mon Jan 12 17:29:16 2026 write: IOPS=0, BW=3852KiB/s (3944kB/s)(12.0MiB/3190msec); 0 zone resets clat (msec): min=377, max=1612, avg=1040.67, stdev=622.56 lat (msec): min=377, max=1612, avg=1041.34, stdev=622.59 clat percentiles (msec): | 1.00th=[ 376], 5.00th=[ 376], 10.00th=[ 376], 20.00th=[ 376], | 30.00th=[ 376], 40.00th=[ 1133], 50.00th=[ 1133], 60.00th=[ 1133], | 70.00th=[ 1620], 80.00th=[ 1620], 90.00th=[ 1620], 95.00th=[ 1620], | 99.00th=[ 1620], 99.50th=[ 1620], 99.90th=[ 1620], 99.95th=[ 1620], | 99.99th=[ 1620] bw ( KiB/s): min= 8015, max= 8192, per=78.89%, avg=8103.50, stdev=125.16, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.16%, sys=3.86%, ctx=34, majf=0, minf=7 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=173972: Mon Jan 12 17:29:16 2026 write: IOPS=1, BW=5359KiB/s (5488kB/s)(12.0MiB/2293msec); 0 zone resets clat (msec): min=423, max=1085, avg=730.39, stdev=333.46 lat (msec): min=424, max=1085, avg=731.02, stdev=333.23 clat percentiles (msec): | 1.00th=[ 422], 5.00th=[ 422], 10.00th=[ 422], 20.00th=[ 422], | 30.00th=[ 422], 40.00th=[ 684], 50.00th=[ 684], 60.00th=[ 684], | 70.00th=[ 1083], 80.00th=[ 1083], 90.00th=[ 1083], 95.00th=[ 1083], | 99.00th=[ 1083], 99.50th=[ 1083], 99.90th=[ 1083], 99.95th=[ 1083], | 99.99th=[ 1083] bw ( KiB/s): min= 7907, max= 7953, per=77.20%, avg=7930.00, stdev=32.53, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.13%, sys=5.19%, 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=5659KiB/s (5795kB/s), 1415KiB/s-4759KiB/s (1449kB/s-4873kB/s), io=16.0MiB (16.8MB), run=2582-2895msec WRITE: bw=10.0MiB/s (10.5MB/s), 2830KiB/s-5359KiB/s (2898kB/s-5488kB/s), io=32.0MiB (33.6MB), run=2293-3190msec rand-rw: (groupid=0, jobs=1): err= 0: pid=173973: Mon Jan 12 17:29:16 2026 read: IOPS=0, BW=3759KiB/s (3849kB/s)(12.0MiB/3269msec) clat (msec): min=129, max=1828, avg=1076.21, stdev=865.74 lat (msec): min=129, max=1828, avg=1076.21, stdev=865.74 clat percentiles (msec): | 1.00th=[ 130], 5.00th=[ 130], 10.00th=[ 130], 20.00th=[ 130], | 30.00th=[ 130], 40.00th=[ 1267], 50.00th=[ 1267], 60.00th=[ 1267], | 70.00th=[ 1821], 80.00th=[ 1821], 90.00th=[ 1821], 95.00th=[ 1821], | 99.00th=[ 1821], 99.50th=[ 1821], 99.90th=[ 1821], 99.95th=[ 1821], | 99.99th=[ 1821] bw ( KiB/s): min= 7984, max= 7984, per=100.00%, avg=7984.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 2000=66.67% cpu : usr=0.00%, sys=2.78%, ctx=37, majf=0, minf=7 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=173974: Mon Jan 12 17:29:16 2026 read: IOPS=0, BW=1228KiB/s (1258kB/s)(4096KiB/3335msec) clat (nsec): min=1439.4M, max=1439.4M, avg=1439390558.00, stdev= 0.00 lat (nsec): min=1439.4M, max=1439.4M, avg=1439392896.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1435], 5.00th=[ 1435], 10.00th=[ 1435], 20.00th=[ 1435], | 30.00th=[ 1435], 40.00th=[ 1435], 50.00th=[ 1435], 60.00th=[ 1435], | 70.00th=[ 1435], 80.00th=[ 1435], 90.00th=[ 1435], 95.00th=[ 1435], | 99.00th=[ 1435], 99.50th=[ 1435], 99.90th=[ 1435], 99.95th=[ 1435], | 99.99th=[ 1435] bw ( KiB/s): min= 7861, max= 7861, per=100.00%, avg=7861.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2456KiB/s (2515kB/s)(8192KiB/3335msec); 0 zone resets clat (msec): min=389, max=1414, avg=902.31, stdev=724.85 lat (msec): min=390, max=1415, avg=902.74, stdev=724.53 clat percentiles (msec): | 1.00th=[ 388], 5.00th=[ 388], 10.00th=[ 388], 20.00th=[ 388], | 30.00th=[ 388], 40.00th=[ 388], 50.00th=[ 388], 60.00th=[ 1418], | 70.00th=[ 1418], 80.00th=[ 1418], 90.00th=[ 1418], 95.00th=[ 1418], | 99.00th=[ 1418], 99.50th=[ 1418], 99.90th=[ 1418], 99.95th=[ 1418], | 99.99th=[ 1418] bw ( KiB/s): min= 8047, max= 8047, per=81.90%, avg=8047.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.00%, sys=2.25%, ctx=44, 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=173975: Mon Jan 12 17:29:16 2026 write: IOPS=0, BW=4077KiB/s (4175kB/s)(12.0MiB/3014msec); 0 zone resets clat (msec): min=608, max=1479, avg=981.17, stdev=448.76 lat (msec): min=609, max=1480, avg=981.88, stdev=449.25 clat percentiles (msec): | 1.00th=[ 609], 5.00th=[ 609], 10.00th=[ 609], 20.00th=[ 609], | 30.00th=[ 609], 40.00th=[ 852], 50.00th=[ 852], 60.00th=[ 852], | 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= 8000, max= 8143, per=82.15%, avg=8071.50, stdev=101.12, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=4.65%, ctx=57, majf=0, minf=7 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=173976: Mon Jan 12 17:29:16 2026 write: IOPS=1, BW=4539KiB/s (4648kB/s)(12.0MiB/2707msec); 0 zone resets clat (msec): min=353, max=1418, avg=885.32, stdev=532.44 lat (msec): min=353, max=1423, avg=887.32, stdev=534.98 clat percentiles (msec): | 1.00th=[ 355], 5.00th=[ 355], 10.00th=[ 355], 20.00th=[ 355], | 30.00th=[ 355], 40.00th=[ 885], 50.00th=[ 885], 60.00th=[ 885], | 70.00th=[ 1418], 80.00th=[ 1418], 90.00th=[ 1418], 95.00th=[ 1418], | 99.00th=[ 1418], 99.50th=[ 1418], 99.90th=[ 1418], 99.95th=[ 1418], | 99.99th=[ 1418] bw ( KiB/s): min= 7757, max= 8143, per=80.92%, avg=7950.00, stdev=272.94, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.04%, sys=3.18%, ctx=30, 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=4913KiB/s (5031kB/s), 1228KiB/s-3759KiB/s (1258kB/s-3849kB/s), io=16.0MiB (16.8MB), run=3269-3335msec WRITE: bw=9825KiB/s (10.1MB/s), 2456KiB/s-4539KiB/s (2515kB/s-4648kB/s), io=32.0MiB (33.6MB), run=2707-3335msec