== sanity test 398b: DIO and buffer IO race ============== 05:53:12 (1787824392) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 5.79891 s, 8.7 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=179090: Thu Aug 27 05:55:26 2026 read: IOPS=12, BW=51.5KiB/s (52.8kB/s)(5992KiB/116297msec) clat (usec): min=32, max=390871, avg=42221.89, stdev=30227.14 lat (usec): min=32, max=390872, avg=42223.47, stdev=30227.06 clat percentiles (usec): | 1.00th=[ 51], 5.00th=[ 1004], 10.00th=[ 14877], 20.00th=[ 20055], | 30.00th=[ 25035], 40.00th=[ 30016], 50.00th=[ 35390], 60.00th=[ 41681], | 70.00th=[ 50070], 80.00th=[ 61080], 90.00th=[ 79168], 95.00th=[ 96994], | 99.00th=[141558], 99.50th=[162530], 99.90th=[238027], 99.95th=[392168], | 99.99th=[392168] bw ( KiB/s): min= 7, max= 119, per=24.81%, avg=51.11, stdev=21.89, samples=229 iops : min= 1, max= 29, avg=12.11, stdev= 5.50, samples=229 write: IOPS=13, BW=54.1KiB/s (55.4kB/s)(6296KiB/116297msec); 0 zone resets clat (usec): min=710, max=512611, avg=33432.01, stdev=36039.50 lat (usec): min=711, max=512612, avg=33436.34, stdev=36038.14 clat percentiles (usec): | 1.00th=[ 1020], 5.00th=[ 1188], 10.00th=[ 1450], 20.00th=[ 3490], | 30.00th=[ 7242], 40.00th=[ 15795], 50.00th=[ 24249], 60.00th=[ 32113], | 70.00th=[ 42730], 80.00th=[ 56886], 90.00th=[ 81265], 95.00th=[101188], | 99.00th=[145753], 99.50th=[164627], 99.90th=[304088], 99.95th=[513803], | 99.99th=[513803] bw ( KiB/s): min= 7, max= 126, per=24.95%, avg=53.88, stdev=23.32, samples=228 iops : min= 1, max= 31, avg=12.81, stdev= 5.86, samples=228 lat (usec) : 50=0.33%, 100=1.99%, 250=0.07%, 750=0.13%, 1000=0.33% lat (msec) : 2=6.22%, 4=4.43%, 10=6.71%, 20=12.27%, 50=40.49% lat (msec) : 100=22.01%, 250=4.95%, 500=0.07%, 750=0.03% cpu : usr=0.08%, sys=5.04%, 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=179091: Thu Aug 27 05:55:26 2026 read: IOPS=12, BW=51.6KiB/s (52.8kB/s)(5940KiB/115187msec) clat (usec): min=44, max=318788, avg=41871.41, stdev=31020.52 lat (usec): min=48, max=318789, avg=41873.64, stdev=31019.45 clat percentiles (usec): | 1.00th=[ 54], 5.00th=[ 8586], 10.00th=[ 14353], 20.00th=[ 20055], | 30.00th=[ 24511], 40.00th=[ 29230], 50.00th=[ 34866], 60.00th=[ 41157], | 70.00th=[ 49021], 80.00th=[ 60031], 90.00th=[ 76022], 95.00th=[ 94897], | 99.00th=[164627], 99.50th=[185598], 99.90th=[252707], 99.95th=[320865], | 99.99th=[320865] bw ( KiB/s): min= 5, max= 119, per=24.97%, avg=51.44, stdev=21.85, samples=225 iops : min= 1, max= 29, avg=12.20, stdev= 5.50, samples=225 write: IOPS=13, BW=55.1KiB/s (56.4kB/s)(6348KiB/115187msec); 0 zone resets clat (usec): min=671, max=450539, avg=33145.44, stdev=36610.00 lat (usec): min=672, max=450540, avg=33147.20, stdev=36610.01 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1205], 10.00th=[ 1467], 20.00th=[ 3064], | 30.00th=[ 7046], 40.00th=[ 15533], 50.00th=[ 23987], 60.00th=[ 31851], | 70.00th=[ 41681], 80.00th=[ 56361], 90.00th=[ 77071], 95.00th=[102237], | 99.00th=[158335], 99.50th=[189793], 99.90th=[287310], 99.95th=[450888], | 99.99th=[450888] bw ( KiB/s): min= 15, max= 134, per=25.32%, avg=54.69, stdev=24.53, samples=226 iops : min= 3, max= 33, avg=13.01, stdev= 6.17, samples=226 lat (usec) : 50=0.16%, 100=1.79%, 250=0.16%, 500=0.10%, 750=0.10% lat (usec) : 1000=0.20% lat (msec) : 2=7.26%, 4=4.56%, 10=5.83%, 20=13.09%, 50=40.89% lat (msec) : 100=21.06%, 250=4.65%, 500=0.16% cpu : usr=0.06%, sys=4.99%, ctx=6349, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179092: Thu Aug 27 05:55:26 2026 read: IOPS=13, BW=52.9KiB/s (54.1kB/s)(6028KiB/114039msec) clat (usec): min=33, max=564394, avg=41124.53, stdev=31403.94 lat (usec): min=33, max=564396, avg=41125.95, stdev=31404.22 clat percentiles (usec): | 1.00th=[ 50], 5.00th=[ 7963], 10.00th=[ 14353], 20.00th=[ 19792], | 30.00th=[ 24773], 40.00th=[ 29492], 50.00th=[ 34341], 60.00th=[ 40633], | 70.00th=[ 47973], 80.00th=[ 58983], 90.00th=[ 76022], 95.00th=[ 92799], | 99.00th=[139461], 99.50th=[175113], 99.90th=[242222], 99.95th=[566232], | 99.99th=[566232] bw ( KiB/s): min= 7, max= 135, per=25.70%, avg=52.93, stdev=22.00, samples=223 iops : min= 1, max= 33, avg=12.57, stdev= 5.55, samples=223 write: IOPS=13, BW=54.9KiB/s (56.2kB/s)(6260KiB/114039msec); 0 zone resets clat (usec): min=755, max=261729, avg=33002.07, stdev=36315.76 lat (usec): min=756, max=261731, avg=33003.96, stdev=36315.69 clat percentiles (usec): | 1.00th=[ 1037], 5.00th=[ 1188], 10.00th=[ 1401], 20.00th=[ 2933], | 30.00th=[ 6390], 40.00th=[ 14091], 50.00th=[ 22414], 60.00th=[ 30016], | 70.00th=[ 40109], 80.00th=[ 57410], 90.00th=[ 81265], 95.00th=[107480], | 99.00th=[158335], 99.50th=[185598], 99.90th=[231736], 99.95th=[261096], | 99.99th=[261096] bw ( KiB/s): min= 7, max= 173, per=25.32%, avg=54.69, stdev=23.13, samples=224 iops : min= 1, max= 43, avg=13.02, stdev= 5.81, samples=224 lat (usec) : 50=0.52%, 100=1.43%, 250=0.23%, 750=0.03%, 1000=0.42% lat (msec) : 2=7.45%, 4=4.49%, 10=6.48%, 20=12.63%, 50=40.20% lat (msec) : 100=21.13%, 250=4.92%, 500=0.03%, 750=0.03% cpu : usr=0.07%, sys=4.87%, ctx=6325, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179093: Thu Aug 27 05:55:26 2026 read: IOPS=13, BW=52.7KiB/s (54.0kB/s)(6052KiB/114759msec) clat (usec): min=33, max=562038, avg=42870.54, stdev=32511.93 lat (usec): min=34, max=562040, avg=42876.37, stdev=32509.82 clat percentiles (usec): | 1.00th=[ 55], 5.00th=[ 8455], 10.00th=[ 14484], 20.00th=[ 20055], | 30.00th=[ 25297], 40.00th=[ 30802], 50.00th=[ 36439], 60.00th=[ 42206], | 70.00th=[ 50070], 80.00th=[ 61604], 90.00th=[ 79168], 95.00th=[ 95945], | 99.00th=[149947], 99.50th=[166724], 99.90th=[274727], 99.95th=[566232], | 99.99th=[566232] bw ( KiB/s): min= 5, max= 120, per=25.37%, avg=52.25, stdev=20.41, samples=226 iops : min= 1, max= 30, avg=12.40, stdev= 5.14, samples=226 write: IOPS=13, BW=54.3KiB/s (55.6kB/s)(6236KiB/114759msec); 0 zone resets clat (usec): min=674, max=246136, avg=31741.53, stdev=34041.06 lat (usec): min=675, max=246137, avg=31744.65, stdev=34040.45 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1188], 10.00th=[ 1352], 20.00th=[ 3032], | 30.00th=[ 5866], 40.00th=[ 12780], 50.00th=[ 21890], 60.00th=[ 30540], | 70.00th=[ 40633], 80.00th=[ 54789], 90.00th=[ 77071], 95.00th=[101188], | 99.00th=[149947], 99.50th=[168821], 99.90th=[208667], 99.95th=[246416], | 99.99th=[246416] bw ( KiB/s): min= 7, max= 127, per=24.85%, avg=53.69, stdev=24.01, samples=226 iops : min= 1, max= 31, avg=12.77, stdev= 6.05, samples=226 lat (usec) : 50=0.20%, 100=1.82%, 250=0.03%, 500=0.03%, 750=0.03% lat (usec) : 1000=0.16% lat (msec) : 2=7.32%, 4=4.72%, 10=6.84%, 20=12.70%, 50=39.71% lat (msec) : 100=21.65%, 250=4.72%, 500=0.03%, 750=0.03% cpu : usr=0.08%, sys=5.09%, ctx=6391, 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=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=206KiB/s (211kB/s), 51.5KiB/s-52.9KiB/s (52.8kB/s-54.1kB/s), io=23.4MiB (24.6MB), run=114039-116297msec WRITE: bw=216KiB/s (221kB/s), 54.1KiB/s-55.1KiB/s (55.4kB/s-56.4kB/s), io=24.6MiB (25.7MB), run=114039-116297msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179094: Thu Aug 27 05:55:58 2026 read: IOPS=10, BW=40.5KiB/s (41.5kB/s)(5992KiB/147803msec) clat (msec): min=4, max=483, avg=39.73, stdev=40.70 lat (msec): min=4, max=483, avg=39.73, stdev=40.70 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 21], 50.00th=[ 26], 60.00th=[ 32], | 70.00th=[ 41], 80.00th=[ 58], 90.00th=[ 93], 95.00th=[ 124], | 99.00th=[ 199], 99.50th=[ 220], 99.90th=[ 262], 99.95th=[ 485], | 99.99th=[ 485] bw ( KiB/s): min= 7, max= 173, per=25.45%, avg=41.23, stdev=30.17, samples=283 iops : min= 1, max= 43, avg= 9.64, stdev= 7.58, samples=283 write: IOPS=10, BW=42.6KiB/s (43.6kB/s)(6296KiB/147803msec); 0 zone resets clat (msec): min=8, max=321, avg=55.90, stdev=43.06 lat (msec): min=8, max=321, avg=55.90, stdev=43.06 clat percentiles (msec): | 1.00th=[ 13], 5.00th=[ 17], 10.00th=[ 19], 20.00th=[ 24], | 30.00th=[ 28], 40.00th=[ 34], 50.00th=[ 42], 60.00th=[ 51], | 70.00th=[ 65], 80.00th=[ 85], 90.00th=[ 115], 95.00th=[ 144], | 99.00th=[ 213], 99.50th=[ 247], 99.90th=[ 292], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 7, max= 159, per=25.01%, avg=42.26, stdev=30.58, samples=290 iops : min= 1, max= 39, avg= 9.90, stdev= 7.67, samples=290 lat (msec) : 10=4.62%, 20=21.55%, 50=41.47%, 100=21.13%, 250=10.87% lat (msec) : 500=0.36% cpu : usr=0.06%, sys=1.71%, ctx=4581, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179095: Thu Aug 27 05:55:58 2026 read: IOPS=10, BW=40.1KiB/s (41.1kB/s)(5940KiB/148065msec) clat (msec): min=5, max=561, avg=37.21, stdev=37.95 lat (msec): min=5, max=561, avg=37.21, stdev=37.95 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 20], 50.00th=[ 25], 60.00th=[ 31], | 70.00th=[ 40], 80.00th=[ 54], 90.00th=[ 83], 95.00th=[ 110], | 99.00th=[ 182], 99.50th=[ 207], 99.90th=[ 279], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 7, max= 189, per=25.33%, avg=41.04, stdev=32.00, samples=280 iops : min= 1, max= 47, avg= 9.59, stdev= 8.04, samples=280 write: IOPS=10, BW=42.9KiB/s (43.9kB/s)(6348KiB/148065msec); 0 zone resets clat (msec): min=7, max=381, avg=58.30, stdev=46.21 lat (msec): min=7, max=381, avg=58.31, stdev=46.21 clat percentiles (msec): | 1.00th=[ 12], 5.00th=[ 17], 10.00th=[ 20], 20.00th=[ 24], | 30.00th=[ 29], 40.00th=[ 35], 50.00th=[ 43], 60.00th=[ 54], | 70.00th=[ 69], 80.00th=[ 87], 90.00th=[ 120], 95.00th=[ 150], | 99.00th=[ 213], 99.50th=[ 255], 99.90th=[ 363], 99.95th=[ 380], | 99.99th=[ 380] bw ( KiB/s): min= 7, max= 143, per=24.98%, avg=42.22, stdev=28.70, samples=290 iops : min= 1, max= 35, avg= 9.89, stdev= 7.20, samples=290 lat (msec) : 10=4.72%, 20=21.78%, 50=41.11%, 100=21.42%, 250=10.55% lat (msec) : 500=0.39%, 750=0.03% cpu : usr=0.06%, sys=1.77%, ctx=4774, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179096: Thu Aug 27 05:55:58 2026 read: IOPS=10, BW=40.9KiB/s (41.9kB/s)(6028KiB/147481msec) clat (msec): min=4, max=279, avg=36.61, stdev=34.81 lat (msec): min=4, max=279, avg=36.61, stdev=34.81 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 17], 40.00th=[ 21], 50.00th=[ 25], 60.00th=[ 30], | 70.00th=[ 39], 80.00th=[ 54], 90.00th=[ 80], 95.00th=[ 111], | 99.00th=[ 171], 99.50th=[ 184], 99.90th=[ 251], 99.95th=[ 279], | 99.99th=[ 279] bw ( KiB/s): min= 7, max= 159, per=25.22%, avg=40.86, stdev=30.85, samples=287 iops : min= 1, max= 39, avg= 9.54, stdev= 7.74, samples=287 write: IOPS=10, BW=42.4KiB/s (43.5kB/s)(6260KiB/147481msec); 0 zone resets clat (msec): min=8, max=545, avg=58.75, stdev=48.09 lat (msec): min=8, max=545, avg=58.75, stdev=48.09 clat percentiles (msec): | 1.00th=[ 13], 5.00th=[ 17], 10.00th=[ 20], 20.00th=[ 24], | 30.00th=[ 29], 40.00th=[ 35], 50.00th=[ 42], 60.00th=[ 55], | 70.00th=[ 68], 80.00th=[ 89], 90.00th=[ 115], 95.00th=[ 150], | 99.00th=[ 236], 99.50th=[ 275], 99.90th=[ 359], 99.95th=[ 550], | 99.99th=[ 550] bw ( KiB/s): min= 7, max= 151, per=24.87%, avg=42.04, stdev=29.55, samples=289 iops : min= 1, max= 37, avg= 9.84, stdev= 7.42, samples=289 lat (msec) : 10=4.36%, 20=20.96%, 50=42.48%, 100=21.55%, 250=10.16% lat (msec) : 500=0.46%, 750=0.03% cpu : usr=0.06%, sys=1.79%, ctx=4629, 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=179097: Thu Aug 27 05:55:58 2026 read: IOPS=10, BW=40.0KiB/s (41.0kB/s)(6052KiB/147626msec) clat (msec): min=4, max=291, avg=38.68, stdev=38.46 lat (msec): min=4, max=291, avg=38.68, stdev=38.46 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 25], 60.00th=[ 32], | 70.00th=[ 40], 80.00th=[ 56], 90.00th=[ 89], 95.00th=[ 123], | 99.00th=[ 192], 99.50th=[ 213], 99.90th=[ 268], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 7, max= 167, per=25.85%, avg=41.87, stdev=30.25, samples=280 iops : min= 1, max= 41, avg= 9.80, stdev= 7.57, samples=280 write: IOPS=10, BW=42.2KiB/s (43.3kB/s)(6236KiB/147626msec); 0 zone resets clat (msec): min=7, max=506, avg=56.93, stdev=45.37 lat (msec): min=7, max=506, avg=56.94, stdev=45.38 clat percentiles (msec): | 1.00th=[ 13], 5.00th=[ 17], 10.00th=[ 20], 20.00th=[ 24], | 30.00th=[ 29], 40.00th=[ 36], 50.00th=[ 42], 60.00th=[ 53], | 70.00th=[ 67], 80.00th=[ 84], 90.00th=[ 112], 95.00th=[ 146], | 99.00th=[ 213], 99.50th=[ 279], 99.90th=[ 384], 99.95th=[ 506], | 99.99th=[ 506] bw ( KiB/s): min= 7, max= 150, per=24.84%, avg=41.99, stdev=29.82, samples=288 iops : min= 1, max= 37, avg= 9.83, stdev= 7.49, samples=288 lat (msec) : 10=4.56%, 20=21.48%, 50=41.37%, 100=22.27%, 250=9.93% lat (msec) : 500=0.36%, 750=0.03% cpu : usr=0.06%, sys=1.69%, ctx=4618, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=162KiB/s (166kB/s), 40.1KiB/s-40.0KiB/s (41.1kB/s-41.0kB/s), io=23.4MiB (24.6MB), run=147481-148065msec WRITE: bw=170KiB/s (174kB/s), 42.2KiB/s-42.9KiB/s (43.3kB/s-43.9kB/s), io=24.6MiB (25.7MB), run=147481-148065msec 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=179138: Thu Aug 27 05:56:38 2026 read: IOPS=12, BW=207KiB/s (212kB/s)(5920KiB/28615msec) clat (usec): min=37, max=207316, avg=41161.92, stdev=28420.32 lat (usec): min=37, max=207317, avg=41167.80, stdev=28415.95 clat percentiles (usec): | 1.00th=[ 46], 5.00th=[ 64], 10.00th=[ 11994], 20.00th=[ 20055], | 30.00th=[ 25035], 40.00th=[ 30540], 50.00th=[ 37487], 60.00th=[ 42730], | 70.00th=[ 52691], 80.00th=[ 61080], 90.00th=[ 73925], 95.00th=[ 90702], | 99.00th=[126354], 99.50th=[181404], 99.90th=[206570], 99.95th=[206570], | 99.99th=[206570] bw ( KiB/s): min= 63, max= 473, per=26.30%, avg=207.48, stdev=84.21, samples=56 iops : min= 3, max= 29, avg=12.18, stdev= 5.32, samples=56 write: IOPS=13, BW=223KiB/s (228kB/s)(6368KiB/28615msec); 0 zone resets clat (usec): min=1009, max=280292, avg=33136.07, stdev=35941.06 lat (usec): min=1010, max=280293, avg=33138.82, stdev=35941.39 clat percentiles (usec): | 1.00th=[ 1483], 5.00th=[ 1795], 10.00th=[ 2278], 20.00th=[ 4113], | 30.00th=[ 7898], 40.00th=[ 15008], 50.00th=[ 21627], 60.00th=[ 30016], | 70.00th=[ 39584], 80.00th=[ 55313], 90.00th=[ 78119], 95.00th=[108528], | 99.00th=[156238], 99.50th=[183501], 99.90th=[278922], 99.95th=[278922], | 99.99th=[278922] bw ( KiB/s): min= 63, max= 536, per=26.93%, avg=223.50, stdev=96.71, samples=56 iops : min= 3, max= 33, avg=13.18, stdev= 6.12, samples=56 lat (usec) : 50=0.78%, 100=3.39%, 250=0.26%, 500=0.13% lat (msec) : 2=3.78%, 4=6.25%, 10=6.90%, 20=12.37%, 50=38.28% lat (msec) : 100=23.05%, 250=4.69%, 500=0.13% cpu : usr=0.05%, sys=5.50%, ctx=1595, 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=179139: Thu Aug 27 05:56:38 2026 read: IOPS=11, BW=189KiB/s (194kB/s)(5744KiB/30354msec) clat (usec): min=36, max=216593, avg=43411.47, stdev=31324.23 lat (usec): min=37, max=216595, avg=43412.68, stdev=31324.23 clat percentiles (usec): | 1.00th=[ 50], 5.00th=[ 73], 10.00th=[ 14746], 20.00th=[ 21627], | 30.00th=[ 27395], 40.00th=[ 31851], 50.00th=[ 37487], 60.00th=[ 44303], | 70.00th=[ 51119], 80.00th=[ 60031], 90.00th=[ 76022], 95.00th=[ 94897], | 99.00th=[179307], 99.50th=[206570], 99.90th=[217056], 99.95th=[217056], | 99.99th=[217056] bw ( KiB/s): min= 27, max= 318, per=23.74%, avg=187.31, stdev=72.30, samples=59 iops : min= 1, max= 19, avg=10.92, stdev= 4.56, samples=59 write: IOPS=13, BW=216KiB/s (221kB/s)(6544KiB/30354msec); 0 zone resets clat (usec): min=1200, max=193777, avg=35359.71, stdev=33207.70 lat (usec): min=1202, max=193779, avg=35383.15, stdev=33217.39 clat percentiles (usec): | 1.00th=[ 1647], 5.00th=[ 1975], 10.00th=[ 2933], 20.00th=[ 6259], | 30.00th=[ 12780], 40.00th=[ 19268], 50.00th=[ 26870], 60.00th=[ 33424], | 70.00th=[ 43779], 80.00th=[ 55837], 90.00th=[ 86508], 95.00th=[107480], | 99.00th=[137364], 99.50th=[145753], 99.90th=[193987], 99.95th=[193987], | 99.99th=[193987] bw ( KiB/s): min= 31, max= 473, per=25.60%, avg=212.47, stdev=100.98, samples=59 iops : min= 1, max= 29, avg=12.49, stdev= 6.37, samples=59 lat (usec) : 50=0.52%, 100=2.34%, 250=0.26%, 500=0.13% lat (msec) : 2=2.86%, 4=4.30%, 10=7.42%, 20=11.07%, 50=43.10% lat (msec) : 100=22.79%, 250=5.21% cpu : usr=0.06%, sys=5.07%, ctx=1668, 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=179140: Thu Aug 27 05:56:38 2026 read: IOPS=13, BW=213KiB/s (218kB/s)(6256KiB/29351msec) clat (usec): min=39, max=246028, avg=42762.55, stdev=28536.56 lat (usec): min=40, max=246029, avg=42770.54, stdev=28535.12 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 74], 10.00th=[ 14353], 20.00th=[ 23200], | 30.00th=[ 27657], 40.00th=[ 32637], 50.00th=[ 39060], 60.00th=[ 45351], | 70.00th=[ 50594], 80.00th=[ 58983], 90.00th=[ 74974], 95.00th=[ 92799], | 99.00th=[143655], 99.50th=[164627], 99.90th=[246416], 99.95th=[246416], | 99.99th=[246416] bw ( KiB/s): min= 63, max= 410, per=26.80%, avg=211.46, stdev=76.33, samples=57 iops : min= 3, max= 25, avg=12.44, stdev= 4.86, samples=57 write: IOPS=12, BW=206KiB/s (210kB/s)(6032KiB/29351msec); 0 zone resets clat (usec): min=1106, max=210697, avg=33317.56, stdev=32666.20 lat (usec): min=1108, max=210701, avg=33320.08, stdev=32666.46 clat percentiles (usec): | 1.00th=[ 1303], 5.00th=[ 1860], 10.00th=[ 2737], 20.00th=[ 5473], | 30.00th=[ 9241], 40.00th=[ 17171], 50.00th=[ 25035], 60.00th=[ 32900], | 70.00th=[ 42730], 80.00th=[ 57410], 90.00th=[ 77071], 95.00th=[ 91751], | 99.00th=[145753], 99.50th=[181404], 99.90th=[210764], 99.95th=[210764], | 99.99th=[210764] bw ( KiB/s): min= 31, max= 414, per=24.28%, avg=201.53, stdev=85.69, samples=57 iops : min= 1, max= 25, avg=11.81, stdev= 5.40, samples=57 lat (usec) : 50=0.39%, 100=3.26%, 250=0.39% lat (msec) : 2=3.52%, 4=4.04%, 10=8.46%, 20=9.77%, 50=41.54% lat (msec) : 100=24.74%, 250=3.91% cpu : usr=0.08%, sys=5.42%, ctx=1659, 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=179141: Thu Aug 27 05:56:38 2026 read: IOPS=12, BW=206KiB/s (211kB/s)(6032KiB/29242msec) clat (usec): min=38, max=166296, avg=40552.34, stdev=29040.00 lat (usec): min=40, max=166297, avg=40603.38, stdev=29058.63 clat percentiles (usec): | 1.00th=[ 46], 5.00th=[ 61], 10.00th=[ 85], 20.00th=[ 19268], | 30.00th=[ 23725], 40.00th=[ 29492], 50.00th=[ 35390], 60.00th=[ 42730], | 70.00th=[ 51119], 80.00th=[ 62653], 90.00th=[ 74974], 95.00th=[ 87557], | 99.00th=[158335], 99.50th=[162530], 99.90th=[166724], 99.95th=[166724], | 99.99th=[166724] bw ( KiB/s): min= 27, max= 415, per=25.94%, avg=204.63, stdev=87.05, samples=57 iops : min= 1, max= 25, avg=12.00, stdev= 5.45, samples=57 write: IOPS=13, BW=214KiB/s (219kB/s)(6256KiB/29242msec); 0 zone resets clat (usec): min=1377, max=248032, avg=34948.50, stdev=36288.18 lat (usec): min=1377, max=248035, avg=34950.86, stdev=36288.06 clat percentiles (usec): | 1.00th=[ 1450], 5.00th=[ 1876], 10.00th=[ 2802], 20.00th=[ 5145], | 30.00th=[ 9372], 40.00th=[ 17433], 50.00th=[ 25560], 60.00th=[ 33817], | 70.00th=[ 42206], 80.00th=[ 57410], 90.00th=[ 76022], 95.00th=[101188], | 99.00th=[175113], 99.50th=[193987], 99.90th=[248513], 99.95th=[248513], | 99.99th=[248513] bw ( KiB/s): min= 95, max= 415, per=25.49%, avg=211.60, stdev=81.56, samples=57 iops : min= 5, max= 25, avg=12.44, stdev= 5.13, samples=57 lat (usec) : 50=1.04%, 100=4.04%, 250=0.65% lat (msec) : 2=3.12%, 4=4.43%, 10=8.59%, 20=10.68%, 50=39.58% lat (msec) : 100=23.44%, 250=4.43% cpu : usr=0.05%, sys=5.21%, ctx=1641, 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=789KiB/s (808kB/s), 189KiB/s-213KiB/s (194kB/s-218kB/s), io=23.4MiB (24.5MB), run=28615-30354msec WRITE: bw=830KiB/s (850kB/s), 206KiB/s-223KiB/s (210kB/s-228kB/s), io=24.6MiB (25.8MB), run=28615-30354msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179133: Thu Aug 27 05:56:47 2026 read: IOPS=9, BW=148KiB/s (152kB/s)(5920KiB/39952msec) clat (msec): min=6, max=222, avg=43.39, stdev=39.61 lat (msec): min=6, max=222, avg=43.39, stdev=39.61 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 24], 50.00th=[ 29], 60.00th=[ 34], | 70.00th=[ 43], 80.00th=[ 69], 90.00th=[ 103], 95.00th=[ 129], | 99.00th=[ 194], 99.50th=[ 211], 99.90th=[ 224], 99.95th=[ 224], | 99.99th=[ 224] bw ( KiB/s): min= 31, max= 448, per=24.63%, avg=147.55, stdev=92.38, samples=78 iops : min= 1, max= 28, avg= 8.54, stdev= 5.85, samples=78 write: IOPS=9, BW=159KiB/s (163kB/s)(6368KiB/39952msec); 0 zone resets clat (msec): min=13, max=248, avg=59.90, stdev=38.15 lat (msec): min=13, max=248, avg=59.90, stdev=38.15 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 21], 10.00th=[ 25], 20.00th=[ 31], | 30.00th=[ 36], 40.00th=[ 41], 50.00th=[ 48], 60.00th=[ 58], | 70.00th=[ 67], 80.00th=[ 87], 90.00th=[ 118], 95.00th=[ 140], | 99.00th=[ 192], 99.50th=[ 201], 99.90th=[ 249], 99.95th=[ 249], | 99.99th=[ 249] bw ( KiB/s): min= 31, max= 414, per=25.36%, avg=159.78, stdev=84.65, samples=78 iops : min= 1, max= 25, avg= 9.32, stdev= 5.33, samples=78 lat (msec) : 10=1.82%, 20=14.45%, 50=47.79%, 100=23.44%, 250=12.50% cpu : usr=0.04%, sys=1.72%, ctx=1118, 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=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=179134: Thu Aug 27 05:56:47 2026 read: IOPS=8, BW=144KiB/s (147kB/s)(5744KiB/39953msec) clat (msec): min=6, max=255, avg=41.39, stdev=36.71 lat (msec): min=6, max=255, avg=41.39, stdev=36.71 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 18], | 30.00th=[ 21], 40.00th=[ 24], 50.00th=[ 29], 60.00th=[ 36], | 70.00th=[ 43], 80.00th=[ 59], 90.00th=[ 90], 95.00th=[ 117], | 99.00th=[ 178], 99.50th=[ 245], 99.90th=[ 257], 99.95th=[ 257], | 99.99th=[ 257] bw ( KiB/s): min= 31, max= 448, per=24.68%, avg=147.83, stdev=98.94, samples=76 iops : min= 1, max= 28, avg= 8.55, stdev= 6.28, samples=76 write: IOPS=10, BW=164KiB/s (168kB/s)(6544KiB/39953msec); 0 zone resets clat (msec): min=8, max=342, avg=60.98, stdev=41.57 lat (msec): min=8, max=342, avg=60.99, stdev=41.57 clat percentiles (msec): | 1.00th=[ 15], 5.00th=[ 21], 10.00th=[ 24], 20.00th=[ 30], | 30.00th=[ 36], 40.00th=[ 42], 50.00th=[ 48], 60.00th=[ 57], | 70.00th=[ 70], 80.00th=[ 90], 90.00th=[ 122], 95.00th=[ 140], | 99.00th=[ 176], 99.50th=[ 220], 99.90th=[ 342], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 31, max= 448, per=25.69%, avg=161.87, stdev=90.98, samples=79 iops : min= 1, max= 28, avg= 9.44, stdev= 5.75, samples=79 lat (msec) : 10=2.08%, 20=14.06%, 50=48.05%, 100=25.00%, 250=10.42% lat (msec) : 500=0.39% cpu : usr=0.04%, sys=1.70%, ctx=1086, 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=179135: Thu Aug 27 05:56:47 2026 read: IOPS=9, BW=157KiB/s (161kB/s)(6256KiB/39786msec) clat (msec): min=6, max=251, avg=40.42, stdev=35.48 lat (msec): min=6, max=251, avg=40.42, stdev=35.48 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 25], 50.00th=[ 29], 60.00th=[ 34], | 70.00th=[ 42], 80.00th=[ 58], 90.00th=[ 81], 95.00th=[ 111], | 99.00th=[ 186], 99.50th=[ 243], 99.90th=[ 251], 99.95th=[ 251], | 99.99th=[ 251] bw ( KiB/s): min= 31, max= 535, per=26.34%, avg=157.79, stdev=102.58, samples=77 iops : min= 1, max= 33, avg= 9.17, stdev= 6.44, samples=77 write: IOPS=9, BW=152KiB/s (155kB/s)(6032KiB/39786msec); 0 zone resets clat (msec): min=14, max=290, avg=63.33, stdev=40.44 lat (msec): min=14, max=290, avg=63.34, stdev=40.44 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 23], 10.00th=[ 26], 20.00th=[ 32], | 30.00th=[ 38], 40.00th=[ 44], 50.00th=[ 52], 60.00th=[ 61], | 70.00th=[ 70], 80.00th=[ 93], 90.00th=[ 122], 95.00th=[ 140], | 99.00th=[ 201], 99.50th=[ 249], 99.90th=[ 292], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 31, max= 350, per=23.49%, avg=148.00, stdev=72.93, samples=78 iops : min= 1, max= 21, avg= 8.56, stdev= 4.60, samples=78 lat (msec) : 10=0.78%, 20=14.97%, 50=46.61%, 100=26.82%, 250=10.55% lat (msec) : 500=0.26% cpu : usr=0.07%, sys=1.76%, ctx=1112, 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=179136: Thu Aug 27 05:56:47 2026 read: IOPS=9, BW=151KiB/s (155kB/s)(6032KiB/39865msec) clat (msec): min=8, max=198, avg=42.96, stdev=36.05 lat (msec): min=8, max=198, avg=42.96, stdev=36.05 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 13], 10.00th=[ 16], 20.00th=[ 19], | 30.00th=[ 22], 40.00th=[ 26], 50.00th=[ 30], 60.00th=[ 36], | 70.00th=[ 44], 80.00th=[ 57], 90.00th=[ 96], 95.00th=[ 129], | 99.00th=[ 190], 99.50th=[ 192], 99.90th=[ 199], 99.95th=[ 199], | 99.99th=[ 199] bw ( KiB/s): min= 31, max= 416, per=25.01%, avg=149.82, stdev=90.04, samples=79 iops : min= 1, max= 26, avg= 8.68, stdev= 5.66, samples=79 write: IOPS=9, BW=157KiB/s (161kB/s)(6256KiB/39865msec); 0 zone resets clat (msec): min=14, max=323, avg=60.23, stdev=42.14 lat (msec): min=14, max=323, avg=60.24, stdev=42.14 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 22], 10.00th=[ 26], 20.00th=[ 31], | 30.00th=[ 34], 40.00th=[ 39], 50.00th=[ 45], 60.00th=[ 56], | 70.00th=[ 68], 80.00th=[ 86], 90.00th=[ 116], 95.00th=[ 140], | 99.00th=[ 220], 99.50th=[ 288], 99.90th=[ 326], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 31, max= 411, per=24.80%, avg=156.22, stdev=86.06, samples=79 iops : min= 1, max= 25, avg= 9.09, stdev= 5.46, samples=79 lat (msec) : 10=1.04%, 20=13.54%, 50=51.17%, 100=22.27%, 250=11.59% lat (msec) : 500=0.39% cpu : usr=0.05%, sys=1.73%, ctx=1161, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=600KiB/s (614kB/s), 144KiB/s-157KiB/s (147kB/s-161kB/s), io=23.4MiB (24.5MB), run=39786-39953msec WRITE: bw=631KiB/s (646kB/s), 152KiB/s-164KiB/s (155kB/s-168kB/s), io=24.6MiB (25.8MB), run=39786-39953msec 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=179154: Thu Aug 27 05:57:03 2026 read: IOPS=1, BW=1233KiB/s (1263kB/s)(7168KiB/5812msec) clat (usec): min=744, max=3173.0k, avg=623357.21, stdev=1128623.97 lat (usec): min=745, max=3173.0k, avg=623359.07, stdev=1128624.00 clat percentiles (usec): | 1.00th=[ 742], 5.00th=[ 742], 10.00th=[ 742], | 20.00th=[ 164627], 30.00th=[ 225444], 40.00th=[ 225444], | 50.00th=[ 231736], 60.00th=[ 252707], 70.00th=[ 252707], | 80.00th=[ 312476], 90.00th=[3170894], 95.00th=[3170894], | 99.00th=[3170894], 99.50th=[3170894], 99.90th=[3170894], | 99.95th=[3170894], 99.99th=[3170894] bw ( KiB/s): min= 1988, max= 6107, per=100.00%, avg=4052.67, stdev=2059.52, samples=3 iops : min= 1, max= 5, avg= 3.00, stdev= 2.00, samples=3 write: IOPS=0, BW=881KiB/s (902kB/s)(5120KiB/5812msec); 0 zone resets clat (msec): min=141, max=287, avg=218.05, stdev=53.90 lat (msec): min=141, max=287, avg=218.32, stdev=53.69 clat percentiles (msec): | 1.00th=[ 142], 5.00th=[ 142], 10.00th=[ 142], 20.00th=[ 142], | 30.00th=[ 199], 40.00th=[ 199], 50.00th=[ 224], 60.00th=[ 224], | 70.00th=[ 241], 80.00th=[ 241], 90.00th=[ 288], 95.00th=[ 288], | 99.00th=[ 288], 99.50th=[ 288], 99.90th=[ 288], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 1988, max= 4079, per=56.07%, avg=2700.67, stdev=1193.90, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (usec) : 750=8.33% lat (msec) : 250=58.33%, 500=25.00%, >=2000=8.33% cpu : usr=0.02%, sys=8.95%, ctx=450, 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=179155: Thu Aug 27 05:57:03 2026 read: IOPS=0, BW=345KiB/s (353kB/s)(2048KiB/5944msec) clat (msec): min=5, max=201, avg=103.41, stdev=138.15 lat (msec): min=5, max=201, avg=103.41, stdev=138.15 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 6], 10.00th=[ 6], 20.00th=[ 6], | 30.00th=[ 6], 40.00th=[ 6], 50.00th=[ 6], 60.00th=[ 201], | 70.00th=[ 201], 80.00th=[ 201], 90.00th=[ 201], 95.00th=[ 201], | 99.00th=[ 201], 99.50th=[ 201], 99.90th=[ 201], 99.95th=[ 201], | 99.99th=[ 201] bw ( KiB/s): min= 2027, max= 2043, per=59.16%, avg=2035.00, stdev=11.31, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1723KiB/s (1764kB/s)(10.0MiB/5944msec); 0 zone resets clat (msec): min=127, max=2268, avg=568.18, stdev=664.54 lat (msec): min=128, max=2268, avg=568.85, stdev=664.23 clat percentiles (msec): | 1.00th=[ 128], 5.00th=[ 128], 10.00th=[ 128], 20.00th=[ 148], | 30.00th=[ 224], 40.00th=[ 255], 50.00th=[ 305], 60.00th=[ 321], | 70.00th=[ 359], 80.00th=[ 535], 90.00th=[ 1133], 95.00th=[ 2265], | 99.00th=[ 2265], 99.50th=[ 2265], 99.90th=[ 2265], 99.95th=[ 2265], | 99.99th=[ 2265] bw ( KiB/s): min= 2031, max= 6059, per=84.28%, avg=4060.00, stdev=1644.54, samples=4 iops : min= 1, max= 5, avg= 3.00, stdev= 1.63, samples=4 lat (msec) : 10=8.33%, 250=33.33%, 500=33.33%, 750=8.33%, 2000=8.33% lat (msec) : >=2000=8.33% cpu : usr=0.05%, sys=10.72%, ctx=154, 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=179156: Thu Aug 27 05:57:03 2026 read: IOPS=1, BW=1032KiB/s (1057kB/s)(6144KiB/5952msec) clat (usec): min=637, max=280863, avg=187534.79, stdev=103212.18 lat (usec): min=639, max=280865, avg=187536.61, stdev=103212.22 clat percentiles (usec): | 1.00th=[ 635], 5.00th=[ 635], 10.00th=[ 635], 20.00th=[145753], | 30.00th=[145753], 40.00th=[206570], 50.00th=[206570], 60.00th=[223347], | 70.00th=[267387], 80.00th=[267387], 90.00th=[278922], 95.00th=[278922], | 99.00th=[278922], 99.50th=[278922], 99.90th=[278922], 99.95th=[278922], | 99.99th=[278922] bw ( KiB/s): min= 1988, max= 4087, per=98.31%, avg=3382.00, stdev=1207.27, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=1, BW=1032KiB/s (1057kB/s)(6144KiB/5952msec); 0 zone resets clat (msec): min=161, max=2206, avg=783.81, stdev=771.26 lat (msec): min=161, max=2206, avg=783.92, stdev=771.27 clat percentiles (msec): | 1.00th=[ 163], 5.00th=[ 163], 10.00th=[ 163], 20.00th=[ 284], | 30.00th=[ 284], 40.00th=[ 439], 50.00th=[ 439], 60.00th=[ 498], | 70.00th=[ 1116], 80.00th=[ 1116], 90.00th=[ 2198], 95.00th=[ 2198], | 99.00th=[ 2198], 99.50th=[ 2198], 99.90th=[ 2198], 99.95th=[ 2198], | 99.99th=[ 2198] bw ( KiB/s): min= 1469, max= 2043, per=39.49%, avg=1902.00, stdev=242.90, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (usec) : 750=8.33% lat (msec) : 250=33.33%, 500=41.67%, 2000=8.33%, >=2000=8.33% cpu : usr=0.00%, sys=8.84%, ctx=218, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179158: Thu Aug 27 05:57:03 2026 read: IOPS=0, BW=968KiB/s (991kB/s)(5120KiB/5288msec) clat (usec): min=739, max=482875, avg=213590.92, stdev=176879.20 lat (usec): min=741, max=482876, avg=213592.29, stdev=176879.22 clat percentiles (usec): | 1.00th=[ 742], 5.00th=[ 742], 10.00th=[ 742], 20.00th=[ 742], | 30.00th=[147850], 40.00th=[147850], 50.00th=[179307], 60.00th=[179307], | 70.00th=[256902], 80.00th=[256902], 90.00th=[484443], 95.00th=[484443], | 99.00th=[484443], 99.50th=[484443], 99.90th=[484443], 99.95th=[484443], | 99.99th=[484443] bw ( KiB/s): min= 2043, max= 6011, per=100.00%, avg=4027.00, stdev=2805.80, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=1, BW=1356KiB/s (1388kB/s)(7168KiB/5288msec); 0 zone resets clat (msec): min=139, max=2029, avg=581.54, stdev=669.42 lat (msec): min=139, max=2029, avg=581.77, stdev=669.39 clat percentiles (msec): | 1.00th=[ 140], 5.00th=[ 140], 10.00th=[ 140], 20.00th=[ 161], | 30.00th=[ 264], 40.00th=[ 264], 50.00th=[ 275], 60.00th=[ 498], | 70.00th=[ 498], 80.00th=[ 709], 90.00th=[ 2022], 95.00th=[ 2022], | 99.00th=[ 2022], 99.50th=[ 2022], 99.90th=[ 2022], 99.95th=[ 2022], | 99.99th=[ 2022] bw ( KiB/s): min= 1436, max= 4079, per=56.58%, avg=2725.60, stdev=1254.83, samples=5 iops : min= 1, max= 3, avg= 1.80, stdev= 1.10, samples=5 lat (usec) : 750=8.33% lat (msec) : 250=33.33%, 500=41.67%, 750=8.33%, >=2000=8.33% cpu : usr=0.00%, sys=10.19%, ctx=152, 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=3441KiB/s (3523kB/s), 345KiB/s-1233KiB/s (353kB/s-1263kB/s), io=20.0MiB (20.0MB), run=5288-5952msec WRITE: bw=4817KiB/s (4933kB/s), 881KiB/s-1723KiB/s (902kB/s-1764kB/s), io=28.0MiB (29.4MB), run=5288-5952msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179157: Thu Aug 27 05:57:04 2026 read: IOPS=1, BW=1056KiB/s (1081kB/s)(7168KiB/6790msec) clat (msec): min=54, max=2512, avg=669.56, stdev=860.71 lat (msec): min=54, max=2512, avg=669.57, stdev=860.71 clat percentiles (msec): | 1.00th=[ 55], 5.00th=[ 55], 10.00th=[ 55], 20.00th=[ 101], | 30.00th=[ 136], 40.00th=[ 136], 50.00th=[ 523], 60.00th=[ 542], | 70.00th=[ 542], 80.00th=[ 818], 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= 2031, max= 2048, per=67.61%, avg=2039.17, stdev= 5.38, samples=6 iops : min= 1, max= 2, avg= 1.17, stdev= 0.41, samples=6 write: IOPS=0, BW=754KiB/s (772kB/s)(5120KiB/6790msec); 0 zone resets clat (msec): min=80, max=681, avg=369.99, stdev=228.44 lat (msec): min=80, max=681, avg=370.10, stdev=228.44 clat percentiles (msec): | 1.00th=[ 81], 5.00th=[ 81], 10.00th=[ 81], 20.00th=[ 81], | 30.00th=[ 275], 40.00th=[ 275], 50.00th=[ 317], 60.00th=[ 317], | 70.00th=[ 498], 80.00th=[ 498], 90.00th=[ 684], 95.00th=[ 684], | 99.00th=[ 684], 99.50th=[ 684], 99.90th=[ 684], 99.95th=[ 684], | 99.99th=[ 684] bw ( KiB/s): min= 2039, max= 6119, per=80.51%, avg=3399.00, stdev=2355.59, samples=3 iops : min= 1, max= 5, avg= 2.33, stdev= 2.31, samples=3 lat (msec) : 100=16.67%, 250=16.67%, 500=25.00%, 750=25.00%, 1000=8.33% lat (msec) : >=2000=8.33% cpu : usr=0.00%, sys=3.12%, ctx=102, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179159: Thu Aug 27 05:57:04 2026 read: IOPS=0, BW=318KiB/s (326kB/s)(2048KiB/6438msec) clat (msec): min=92, max=171, avg=131.89, stdev=55.45 lat (msec): min=92, max=171, avg=131.89, stdev=55.45 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 93], 10.00th=[ 93], 20.00th=[ 93], | 30.00th=[ 93], 40.00th=[ 93], 50.00th=[ 93], 60.00th=[ 171], | 70.00th=[ 171], 80.00th=[ 171], 90.00th=[ 171], 95.00th=[ 171], | 99.00th=[ 171], 99.50th=[ 171], 99.90th=[ 171], 99.95th=[ 171], | 99.99th=[ 171] bw ( KiB/s): min= 1481, max= 2027, per=58.16%, avg=1754.00, stdev=386.08, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1591KiB/s (1629kB/s)(10.0MiB/6438msec); 0 zone resets clat (msec): min=108, max=2255, avg=591.24, stdev=640.18 lat (msec): min=110, max=2255, avg=591.60, stdev=639.99 clat percentiles (msec): | 1.00th=[ 108], 5.00th=[ 108], 10.00th=[ 108], 20.00th=[ 134], | 30.00th=[ 253], 40.00th=[ 271], 50.00th=[ 317], 60.00th=[ 426], | 70.00th=[ 447], 80.00th=[ 827], 90.00th=[ 869], 95.00th=[ 2265], | 99.00th=[ 2265], 99.50th=[ 2265], 99.90th=[ 2265], 99.95th=[ 2265], | 99.99th=[ 2265] bw ( KiB/s): min= 2007, max= 6144, per=72.41%, avg=3057.17, stdev=1722.01, samples=6 iops : min= 1, max= 6, avg= 2.17, stdev= 2.04, samples=6 lat (msec) : 100=8.33%, 250=25.00%, 500=41.67%, 1000=16.67%, >=2000=8.33% cpu : usr=0.02%, sys=4.58%, ctx=113, 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=179160: Thu Aug 27 05:57:04 2026 read: IOPS=0, BW=944KiB/s (967kB/s)(6144KiB/6506msec) clat (msec): min=74, max=749, avg=230.54, stdev=260.12 lat (msec): min=74, max=749, avg=230.54, stdev=260.12 clat percentiles (msec): | 1.00th=[ 75], 5.00th=[ 75], 10.00th=[ 75], 20.00th=[ 81], | 30.00th=[ 81], 40.00th=[ 126], 50.00th=[ 126], 60.00th=[ 127], | 70.00th=[ 226], 80.00th=[ 226], 90.00th=[ 751], 95.00th=[ 751], | 99.00th=[ 751], 99.50th=[ 751], 99.90th=[ 751], 99.95th=[ 751], | 99.99th=[ 751] bw ( KiB/s): min= 2035, max= 5988, per=100.00%, avg=3355.33, stdev=2279.96, samples=3 iops : min= 1, max= 5, avg= 2.33, stdev= 2.31, samples=3 write: IOPS=0, BW=944KiB/s (967kB/s)(6144KiB/6506msec); 0 zone resets clat (msec): min=195, max=2618, avg=839.44, stdev=932.73 lat (msec): min=195, max=2618, avg=839.68, stdev=932.73 clat percentiles (msec): | 1.00th=[ 197], 5.00th=[ 197], 10.00th=[ 197], 20.00th=[ 296], | 30.00th=[ 296], 40.00th=[ 321], 50.00th=[ 321], 60.00th=[ 481], | 70.00th=[ 1116], 80.00th=[ 1116], 90.00th=[ 2635], 95.00th=[ 2635], | 99.00th=[ 2635], 99.50th=[ 2635], 99.90th=[ 2635], 99.95th=[ 2635], | 99.99th=[ 2635] bw ( KiB/s): min= 1980, max= 2048, per=47.86%, avg=2020.83, stdev=26.56, samples=6 iops : min= 1, max= 2, avg= 1.17, stdev= 0.41, samples=6 lat (msec) : 100=16.67%, 250=33.33%, 500=25.00%, 750=8.33%, 2000=8.33% lat (msec) : >=2000=8.33% cpu : usr=0.00%, sys=1.91%, ctx=59, 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=179161: Thu Aug 27 05:57:04 2026 read: IOPS=0, BW=783KiB/s (802kB/s)(5120KiB/6541msec) clat (msec): min=70, max=231, avg=134.47, stdev=62.63 lat (msec): min=70, max=231, avg=134.47, stdev=62.63 clat percentiles (msec): | 1.00th=[ 71], 5.00th=[ 71], 10.00th=[ 71], 20.00th=[ 71], | 30.00th=[ 105], 40.00th=[ 105], 50.00th=[ 107], 60.00th=[ 107], | 70.00th=[ 159], 80.00th=[ 159], 90.00th=[ 232], 95.00th=[ 232], | 99.00th=[ 232], 99.50th=[ 232], 99.90th=[ 232], 99.95th=[ 232], | 99.99th=[ 232] bw ( KiB/s): min= 2027, max= 6131, per=100.00%, avg=4079.00, stdev=2901.97, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=1, BW=1096KiB/s (1122kB/s)(7168KiB/6541msec); 0 zone resets clat (msec): min=119, max=2337, avg=807.17, stdev=788.64 lat (msec): min=120, max=2338, avg=807.47, stdev=788.52 clat percentiles (msec): | 1.00th=[ 121], 5.00th=[ 121], 10.00th=[ 121], 20.00th=[ 123], | 30.00th=[ 405], 40.00th=[ 405], 50.00th=[ 481], 60.00th=[ 995], | 70.00th=[ 995], 80.00th=[ 1183], 90.00th=[ 2333], 95.00th=[ 2333], | 99.00th=[ 2333], 99.50th=[ 2333], 99.90th=[ 2333], 99.95th=[ 2333], | 99.99th=[ 2333] bw ( KiB/s): min= 2027, max= 4071, per=60.31%, avg=2546.25, stdev=1016.54, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 lat (msec) : 100=8.33%, 250=50.00%, 500=16.67%, 1000=8.33%, 2000=8.33% lat (msec) : >=2000=8.33% cpu : usr=0.00%, sys=3.82%, ctx=96, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=3016KiB/s (3089kB/s), 318KiB/s-1056KiB/s (326kB/s-1081kB/s), io=20.0MiB (20.0MB), run=6438-6790msec WRITE: bw=4223KiB/s (4324kB/s), 754KiB/s-1591KiB/s (772kB/s-1629kB/s), io=28.0MiB (29.4MB), run=6438-6790msec 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=179170: Thu Aug 27 05:57:19 2026 read: IOPS=1, BW=4838KiB/s (4954kB/s)(12.0MiB/2540msec) clat (msec): min=733, max=965, avg=811.36, stdev=133.83 lat (msec): min=733, max=965, avg=811.36, stdev=133.83 clat percentiles (msec): | 1.00th=[ 735], 5.00th=[ 735], 10.00th=[ 735], 20.00th=[ 735], | 30.00th=[ 735], 40.00th=[ 735], 50.00th=[ 735], 60.00th=[ 735], | 70.00th=[ 969], 80.00th=[ 969], 90.00th=[ 969], 95.00th=[ 969], | 99.00th=[ 969], 99.50th=[ 969], 99.90th=[ 969], 99.95th=[ 969], | 99.99th=[ 969] bw ( KiB/s): min= 8192, max= 8192, per=100.00%, avg=8192.00, stdev= 0.00, samples=2 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=2 lat (msec) : 750=66.67%, 1000=33.33% cpu : usr=0.00%, sys=11.70%, ctx=204, 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=179171: Thu Aug 27 05:57:19 2026 read: IOPS=0, BW=1383KiB/s (1417kB/s)(4096KiB/2961msec) clat (nsec): min=768083k, max=768083k, avg=768083249.00, stdev= 0.00 lat (nsec): min=768087k, max=768087k, avg=768087268.00, 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= 8192, max= 8192, per=100.00%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2767KiB/s (2833kB/s)(8192KiB/2961msec); 0 zone resets clat (msec): min=913, max=1054, avg=984.02, stdev=100.04 lat (msec): min=915, max=1055, avg=985.35, stdev=99.21 clat percentiles (msec): | 1.00th=[ 911], 5.00th=[ 911], 10.00th=[ 911], 20.00th=[ 911], | 30.00th=[ 911], 40.00th=[ 911], 50.00th=[ 911], 60.00th=[ 1053], | 70.00th=[ 1053], 80.00th=[ 1053], 90.00th=[ 1053], 95.00th=[ 1053], | 99.00th=[ 1053], 99.50th=[ 1053], 99.90th=[ 1053], 99.95th=[ 1053], | 99.99th=[ 1053] bw ( KiB/s): min= 8192, max= 8192, per=74.03%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 1000=66.67%, 2000=33.33% cpu : usr=0.10%, sys=4.39%, 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=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=179173: Thu Aug 27 05:57:19 2026 write: IOPS=2, BW=8891KiB/s (9105kB/s)(12.0MiB/1382msec); 0 zone resets clat (msec): min=318, max=588, avg=422.30, stdev=145.62 lat (msec): min=319, max=589, avg=423.30, stdev=145.22 clat percentiles (msec): | 1.00th=[ 321], 5.00th=[ 321], 10.00th=[ 321], 20.00th=[ 321], | 30.00th=[ 321], 40.00th=[ 359], 50.00th=[ 359], 60.00th=[ 359], | 70.00th=[ 592], 80.00th=[ 592], 90.00th=[ 592], 95.00th=[ 592], | 99.00th=[ 592], 99.50th=[ 592], 99.90th=[ 592], 99.95th=[ 592], | 99.99th=[ 592] bw ( KiB/s): min= 5760, max= 8192, per=63.04%, avg=6976.00, stdev=1719.68, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 500=66.67%, 750=33.33% cpu : usr=0.22%, sys=9.12%, ctx=44, 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=179175: Thu Aug 27 05:57:19 2026 write: IOPS=1, BW=4221KiB/s (4323kB/s)(12.0MiB/2911msec); 0 zone resets clat (msec): min=409, max=1489, avg=905.48, stdev=545.33 lat (msec): min=410, max=1490, avg=906.29, stdev=544.98 clat percentiles (msec): | 1.00th=[ 409], 5.00th=[ 409], 10.00th=[ 409], 20.00th=[ 409], | 30.00th=[ 409], 40.00th=[ 818], 50.00th=[ 818], 60.00th=[ 818], | 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= 8192, max= 8192, per=74.03%, avg=8192.00, stdev= 0.00, samples=2 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=4.19%, ctx=52, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=5533KiB/s (5666kB/s), 1383KiB/s-4838KiB/s (1417kB/s-4954kB/s), io=16.0MiB (16.8MB), run=2540-2961msec WRITE: bw=10.8MiB/s (11.3MB/s), 2767KiB/s-8891KiB/s (2833kB/s-9105kB/s), io=32.0MiB (33.6MB), run=1382-2961msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179169: Thu Aug 27 05:57:20 2026 read: IOPS=0, BW=3570KiB/s (3656kB/s)(12.0MiB/3442msec) clat (msec): min=277, max=1752, avg=1073.28, stdev=744.50 lat (msec): min=277, max=1752, avg=1073.28, stdev=744.50 clat percentiles (msec): | 1.00th=[ 279], 5.00th=[ 279], 10.00th=[ 279], 20.00th=[ 279], | 30.00th=[ 279], 40.00th=[ 1183], 50.00th=[ 1183], 60.00th=[ 1183], | 70.00th=[ 1754], 80.00th=[ 1754], 90.00th=[ 1754], 95.00th=[ 1754], | 99.00th=[ 1754], 99.50th=[ 1754], 99.90th=[ 1754], 99.95th=[ 1754], | 99.99th=[ 1754] 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 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.00%, sys=2.82%, ctx=60, 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=179172: Thu Aug 27 05:57:20 2026 read: IOPS=0, BW=1151KiB/s (1178kB/s)(4096KiB/3560msec) clat (nsec): min=1158.2M, max=1158.2M, avg=1158241958.00, stdev= 0.00 lat (nsec): min=1158.2M, max=1158.2M, avg=1158246245.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1167], 5.00th=[ 1167], 10.00th=[ 1167], 20.00th=[ 1167], | 30.00th=[ 1167], 40.00th=[ 1167], 50.00th=[ 1167], 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= 8175, max= 8175, per=100.00%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2301KiB/s (2356kB/s)(8192KiB/3560msec); 0 zone resets clat (msec): min=510, max=1683, avg=1096.90, stdev=829.43 lat (msec): min=510, max=1683, avg=1097.40, stdev=829.33 clat percentiles (msec): | 1.00th=[ 510], 5.00th=[ 510], 10.00th=[ 510], 20.00th=[ 510], | 30.00th=[ 510], 40.00th=[ 510], 50.00th=[ 510], 60.00th=[ 1687], | 70.00th=[ 1687], 80.00th=[ 1687], 90.00th=[ 1687], 95.00th=[ 1687], | 99.00th=[ 1687], 99.50th=[ 1687], 99.90th=[ 1687], 99.95th=[ 1687], | 99.99th=[ 1687] bw ( KiB/s): min= 8192, max= 8192, per=89.00%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 750=33.33%, 2000=66.67% cpu : usr=0.06%, sys=3.60%, ctx=73, 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=179174: Thu Aug 27 05:57:20 2026 write: IOPS=0, BW=3835KiB/s (3927kB/s)(12.0MiB/3204msec); 0 zone resets clat (msec): min=758, max=1268, avg=1035.79, stdev=257.53 lat (msec): min=759, max=1268, avg=1036.89, stdev=257.72 clat percentiles (msec): | 1.00th=[ 760], 5.00th=[ 760], 10.00th=[ 760], 20.00th=[ 760], | 30.00th=[ 760], 40.00th=[ 1083], 50.00th=[ 1083], 60.00th=[ 1083], | 70.00th=[ 1267], 80.00th=[ 1267], 90.00th=[ 1267], 95.00th=[ 1267], | 99.00th=[ 1267], 99.50th=[ 1267], 99.90th=[ 1267], 99.95th=[ 1267], | 99.99th=[ 1267] bw ( KiB/s): min= 8159, max= 8175, per=88.73%, avg=8167.00, stdev=11.31, 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=0.19%, sys=5.15%, ctx=91, 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=179176: Thu Aug 27 05:57:20 2026 write: IOPS=1, BW=4172KiB/s (4273kB/s)(12.0MiB/2945msec); 0 zone resets clat (msec): min=459, max=1044, avg=835.59, stdev=326.22 lat (msec): min=463, max=1045, avg=837.82, stdev=324.48 clat percentiles (msec): | 1.00th=[ 460], 5.00th=[ 460], 10.00th=[ 460], 20.00th=[ 460], | 30.00th=[ 460], 40.00th=[ 1003], 50.00th=[ 1003], 60.00th=[ 1003], | 70.00th=[ 1045], 80.00th=[ 1045], 90.00th=[ 1045], 95.00th=[ 1045], | 99.00th=[ 1045], 99.50th=[ 1045], 99.90th=[ 1045], 99.95th=[ 1045], | 99.99th=[ 1045] bw ( KiB/s): min= 8126, max= 8159, per=88.47%, avg=8142.50, stdev=23.33, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.07%, sys=4.65%, 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=4602KiB/s (4713kB/s), 1151KiB/s-3570KiB/s (1178kB/s-3656kB/s), io=16.0MiB (16.8MB), run=3442-3560msec WRITE: bw=9204KiB/s (9425kB/s), 2301KiB/s-4172KiB/s (2356kB/s-4273kB/s), io=32.0MiB (33.6MB), run=2945-3560msec