== sanity test 398b: DIO and buffer IO race ============== 04:19:35 (1787386775) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 6.15193 s, 8.2 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=145287: Sat Aug 22 04:22:35 2026 read: IOPS=9, BW=37.5KiB/s (38.4kB/s)(5992KiB/159746msec) clat (usec): min=35, max=349009, avg=51897.05, stdev=39528.45 lat (usec): min=35, max=349010, avg=51899.29, stdev=39528.51 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 68], 10.00th=[ 14877], 20.00th=[ 24511], | 30.00th=[ 30278], 40.00th=[ 37487], 50.00th=[ 43254], 60.00th=[ 51643], | 70.00th=[ 61604], 80.00th=[ 76022], 90.00th=[ 95945], 95.00th=[116917], | 99.00th=[212861], 99.50th=[235930], 99.90th=[325059], 99.95th=[350225], | 99.99th=[350225] bw ( KiB/s): min= 7, max= 96, per=25.20%, avg=37.80, stdev=18.18, samples=307 iops : min= 1, max= 24, avg= 8.79, stdev= 4.58, samples=307 write: IOPS=9, BW=39.4KiB/s (40.4kB/s)(6296KiB/159746msec); 0 zone resets clat (usec): min=1134, max=528620, avg=51954.66, stdev=57084.30 lat (usec): min=1135, max=528623, avg=51962.14, stdev=57088.81 clat percentiles (usec): | 1.00th=[ 1270], 5.00th=[ 1434], 10.00th=[ 2147], 20.00th=[ 6325], | 30.00th=[ 12780], 40.00th=[ 23987], 50.00th=[ 37487], 60.00th=[ 52167], | 70.00th=[ 66323], 80.00th=[ 85459], 90.00th=[117965], 95.00th=[149947], | 99.00th=[274727], 99.50th=[354419], 99.90th=[471860], 99.95th=[530580], | 99.99th=[530580] bw ( KiB/s): min= 5, max= 151, per=24.84%, avg=39.00, stdev=17.92, samples=313 iops : min= 1, max= 37, avg= 9.10, stdev= 4.52, samples=313 lat (usec) : 50=0.33%, 100=3.03%, 250=0.36%, 500=0.07% lat (msec) : 2=4.98%, 4=2.60%, 10=6.45%, 20=8.01%, 50=32.68% lat (msec) : 100=29.75%, 250=10.90%, 500=0.81%, 750=0.03% cpu : usr=0.08%, sys=4.66%, ctx=6709, majf=0, minf=18 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145288: Sat Aug 22 04:22:35 2026 read: IOPS=9, BW=38.3KiB/s (39.2kB/s)(5940KiB/155265msec) clat (usec): min=32, max=446834, avg=52546.87, stdev=40298.86 lat (usec): min=32, max=446837, avg=52548.78, stdev=40299.10 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 72], 10.00th=[ 15664], 20.00th=[ 25297], | 30.00th=[ 31589], 40.00th=[ 38011], 50.00th=[ 44303], 60.00th=[ 52691], | 70.00th=[ 62129], 80.00th=[ 76022], 90.00th=[ 98042], 95.00th=[117965], | 99.00th=[204473], 99.50th=[235930], 99.90th=[417334], 99.95th=[446694], | 99.99th=[446694] bw ( KiB/s): min= 5, max= 118, per=25.79%, avg=38.68, stdev=18.23, samples=298 iops : min= 1, max= 29, avg= 9.02, stdev= 4.60, samples=298 write: IOPS=10, BW=40.9KiB/s (41.9kB/s)(6348KiB/155265msec); 0 zone resets clat (usec): min=1190, max=696731, avg=48522.19, stdev=54125.57 lat (usec): min=1192, max=696733, avg=48524.96, stdev=54126.35 clat percentiles (usec): | 1.00th=[ 1287], 5.00th=[ 1483], 10.00th=[ 2474], 20.00th=[ 5669], | 30.00th=[ 11731], 40.00th=[ 22676], 50.00th=[ 34341], 60.00th=[ 46400], | 70.00th=[ 61604], 80.00th=[ 81265], 90.00th=[112722], 95.00th=[147850], | 99.00th=[240124], 99.50th=[270533], 99.90th=[557843], 99.95th=[700449], | 99.99th=[700449] bw ( KiB/s): min= 5, max= 104, per=25.91%, avg=40.68, stdev=17.75, samples=303 iops : min= 1, max= 26, avg= 9.53, stdev= 4.48, samples=303 lat (usec) : 50=0.29%, 100=2.90%, 250=0.42%, 500=0.10%, 1000=0.03% lat (msec) : 2=4.49%, 4=3.09%, 10=7.03%, 20=8.11%, 50=33.56% lat (msec) : 100=28.71%, 250=10.58%, 500=0.62%, 750=0.07% cpu : usr=0.08%, sys=4.85%, ctx=6716, majf=0, minf=19 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=145289: Sat Aug 22 04:22:35 2026 read: IOPS=9, BW=38.2KiB/s (39.1kB/s)(6028KiB/157772msec) clat (usec): min=32, max=570473, avg=53420.43, stdev=43411.46 lat (usec): min=33, max=570475, avg=53422.02, stdev=43411.48 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 71], 10.00th=[ 13829], 20.00th=[ 24249], | 30.00th=[ 31065], 40.00th=[ 37487], 50.00th=[ 44827], 60.00th=[ 54264], | 70.00th=[ 64226], 80.00th=[ 77071], 90.00th=[ 96994], 95.00th=[121111], | 99.00th=[191890], 99.50th=[238027], 99.90th=[417334], 99.95th=[574620], | 99.99th=[574620] bw ( KiB/s): min= 7, max= 119, per=25.29%, avg=37.93, stdev=19.10, samples=307 iops : min= 1, max= 29, avg= 8.83, stdev= 4.81, samples=307 write: IOPS=9, BW=39.7KiB/s (40.6kB/s)(6260KiB/157772msec); 0 zone resets clat (usec): min=1163, max=576024, avg=49235.40, stdev=54405.90 lat (usec): min=1164, max=576027, avg=49239.07, stdev=54404.96 clat percentiles (usec): | 1.00th=[ 1270], 5.00th=[ 1450], 10.00th=[ 2343], 20.00th=[ 6259], | 30.00th=[ 11207], 40.00th=[ 22152], 50.00th=[ 33817], 60.00th=[ 46924], | 70.00th=[ 61604], 80.00th=[ 82314], 90.00th=[116917], 95.00th=[145753], | 99.00th=[229639], 99.50th=[283116], 99.90th=[434111], 99.95th=[574620], | 99.99th=[574620] bw ( KiB/s): min= 5, max= 102, per=25.22%, avg=39.60, stdev=18.98, samples=305 iops : min= 1, max= 25, avg= 9.25, stdev= 4.78, samples=305 lat (usec) : 50=0.23%, 100=3.22%, 250=0.46%, 500=0.03%, 750=0.10% lat (msec) : 2=4.72%, 4=2.96%, 10=6.77%, 20=8.56%, 50=32.06% lat (msec) : 100=29.39%, 250=10.87%, 500=0.55%, 750=0.07% cpu : usr=0.07%, sys=4.74%, ctx=6712, 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=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=145290: Sat Aug 22 04:22:35 2026 read: IOPS=9, BW=38.7KiB/s (39.7kB/s)(6052KiB/156221msec) clat (usec): min=32, max=516544, avg=51605.29, stdev=41377.72 lat (usec): min=33, max=516546, avg=51609.67, stdev=41378.42 clat percentiles (usec): | 1.00th=[ 51], 5.00th=[ 69], 10.00th=[ 14746], 20.00th=[ 23462], | 30.00th=[ 30540], 40.00th=[ 36439], 50.00th=[ 43254], 60.00th=[ 51119], | 70.00th=[ 61080], 80.00th=[ 74974], 90.00th=[ 96994], 95.00th=[121111], | 99.00th=[196084], 99.50th=[231736], 99.90th=[476054], 99.95th=[517997], | 99.99th=[517997] bw ( KiB/s): min= 7, max= 87, per=26.02%, avg=39.02, stdev=16.38, samples=300 iops : min= 1, max= 21, avg= 9.10, stdev= 4.15, samples=300 write: IOPS=9, BW=39.9KiB/s (40.9kB/s)(6236KiB/156221msec); 0 zone resets clat (usec): min=1202, max=698140, avg=49973.44, stdev=52513.47 lat (usec): min=1203, max=698142, avg=49977.84, stdev=52512.06 clat percentiles (usec): | 1.00th=[ 1303], 5.00th=[ 1500], 10.00th=[ 2769], 20.00th=[ 6587], | 30.00th=[ 12911], 40.00th=[ 24511], 50.00th=[ 36963], 60.00th=[ 49546], | 70.00th=[ 64750], 80.00th=[ 83362], 90.00th=[116917], 95.00th=[145753], | 99.00th=[212861], 99.50th=[256902], 99.90th=[425722], 99.95th=[700449], | 99.99th=[700449] bw ( KiB/s): min= 7, max= 102, per=25.50%, avg=40.04, stdev=18.25, samples=301 iops : min= 1, max= 25, avg= 9.36, stdev= 4.63, samples=301 lat (usec) : 50=0.39%, 100=3.19%, 250=0.33%, 500=0.07%, 750=0.03% lat (usec) : 1000=0.03% lat (msec) : 2=4.17%, 4=2.99%, 10=6.22%, 20=8.79%, 50=33.30% lat (msec) : 100=28.97%, 250=11.04%, 500=0.42%, 750=0.07% cpu : usr=0.09%, sys=4.78%, ctx=6647, 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=150KiB/s (154kB/s), 37.5KiB/s-38.7KiB/s (38.4kB/s-39.7kB/s), io=23.4MiB (24.6MB), run=155265-159746msec WRITE: bw=157KiB/s (161kB/s), 39.4KiB/s-40.9KiB/s (40.4kB/s-41.9kB/s), io=24.6MiB (25.7MB), run=155265-159746msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145282: Sat Aug 22 04:25:07 2026 read: IOPS=4, BW=19.3KiB/s (19.8kB/s)(5992KiB/310371msec) clat (msec): min=5, max=1030, avg=39.19, stdev=48.74 lat (msec): min=5, max=1030, avg=39.19, stdev=48.74 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 24], 60.00th=[ 29], | 70.00th=[ 36], 80.00th=[ 53], 90.00th=[ 88], 95.00th=[ 128], | 99.00th=[ 207], 99.50th=[ 255], 99.90th=[ 439], 99.95th=[ 1028], | 99.99th=[ 1028] bw ( KiB/s): min= 7, max= 96, per=29.84%, avg=22.68, stdev=16.24, samples=509 iops : min= 1, max= 24, avg= 5.04, stdev= 4.09, samples=509 write: IOPS=5, BW=20.3KiB/s (20.8kB/s)(6296KiB/310371msec); 0 zone resets clat (msec): min=47, max=798, avg=159.54, stdev=89.97 lat (msec): min=47, max=798, avg=159.54, stdev=89.97 clat percentiles (msec): | 1.00th=[ 56], 5.00th=[ 71], 10.00th=[ 81], 20.00th=[ 93], | 30.00th=[ 106], 40.00th=[ 118], 50.00th=[ 134], 60.00th=[ 148], | 70.00th=[ 176], 80.00th=[ 215], 90.00th=[ 279], 95.00th=[ 334], | 99.00th=[ 489], 99.50th=[ 542], 99.90th=[ 776], 99.95th=[ 802], | 99.99th=[ 802] bw ( KiB/s): min= 7, max= 48, per=25.40%, avg=20.32, stdev=10.16, samples=594 iops : min= 1, max= 12, avg= 4.44, stdev= 2.60, samples=594 lat (msec) : 10=2.47%, 20=16.67%, 50=19.56%, 100=19.53%, 250=33.95% lat (msec) : 500=7.29%, 750=0.42%, 1000=0.07%, 2000=0.03% cpu : usr=0.04%, sys=1.22%, ctx=5219, 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=145283: Sat Aug 22 04:25:07 2026 read: IOPS=4, BW=18.9KiB/s (19.4kB/s)(5940KiB/313465msec) clat (msec): min=6, max=1492, avg=39.30, stdev=57.04 lat (msec): min=6, max=1492, avg=39.31, stdev=57.04 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 20], 50.00th=[ 23], 60.00th=[ 28], | 70.00th=[ 35], 80.00th=[ 51], 90.00th=[ 89], 95.00th=[ 120], | 99.00th=[ 222], 99.50th=[ 268], 99.90th=[ 456], 99.95th=[ 1485], | 99.99th=[ 1485] bw ( KiB/s): min= 7, max= 88, per=30.07%, avg=22.86, stdev=16.02, samples=500 iops : min= 1, max= 22, avg= 5.07, stdev= 4.06, samples=500 write: IOPS=5, BW=20.3KiB/s (20.7kB/s)(6348KiB/313465msec); 0 zone resets clat (msec): min=37, max=926, avg=160.39, stdev=94.64 lat (msec): min=37, max=926, avg=160.39, stdev=94.64 clat percentiles (msec): | 1.00th=[ 56], 5.00th=[ 68], 10.00th=[ 80], 20.00th=[ 93], | 30.00th=[ 105], 40.00th=[ 116], 50.00th=[ 131], 60.00th=[ 150], | 70.00th=[ 176], 80.00th=[ 213], 90.00th=[ 279], 95.00th=[ 347], | 99.00th=[ 498], 99.50th=[ 667], 99.90th=[ 760], 99.95th=[ 927], | 99.99th=[ 927] bw ( KiB/s): min= 7, max= 55, per=25.60%, avg=20.48, stdev=10.16, samples=594 iops : min= 1, max= 13, avg= 4.48, stdev= 2.61, samples=594 lat (msec) : 10=2.15%, 20=17.48%, 50=19.14%, 100=19.01%, 250=34.90% lat (msec) : 500=6.80%, 750=0.42%, 1000=0.07%, 2000=0.03% cpu : usr=0.04%, sys=1.20%, ctx=5294, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145284: Sat Aug 22 04:25:07 2026 read: IOPS=4, BW=19.4KiB/s (19.9kB/s)(6028KiB/310881msec) clat (msec): min=5, max=535, avg=40.65, stdev=47.58 lat (msec): min=5, max=535, avg=40.66, stdev=47.58 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 23], 60.00th=[ 28], | 70.00th=[ 37], 80.00th=[ 56], 90.00th=[ 93], 95.00th=[ 134], | 99.00th=[ 226], 99.50th=[ 275], 99.90th=[ 447], 99.95th=[ 535], | 99.99th=[ 535] bw ( KiB/s): min= 7, max= 111, per=30.03%, avg=22.82, stdev=16.35, samples=509 iops : min= 1, max= 27, avg= 5.08, stdev= 4.13, samples=509 write: IOPS=5, BW=20.1KiB/s (20.6kB/s)(6260KiB/310881msec); 0 zone resets clat (msec): min=39, max=1635, avg=159.14, stdev=96.83 lat (msec): min=39, max=1635, avg=159.14, stdev=96.82 clat percentiles (msec): | 1.00th=[ 54], 5.00th=[ 68], 10.00th=[ 78], 20.00th=[ 92], | 30.00th=[ 105], 40.00th=[ 118], 50.00th=[ 133], 60.00th=[ 150], | 70.00th=[ 176], 80.00th=[ 213], 90.00th=[ 279], 95.00th=[ 330], | 99.00th=[ 498], 99.50th=[ 542], 99.90th=[ 969], 99.95th=[ 1636], | 99.99th=[ 1636] bw ( KiB/s): min= 7, max= 48, per=25.52%, avg=20.42, stdev=10.23, samples=588 iops : min= 1, max= 12, avg= 4.46, stdev= 2.60, samples=588 lat (msec) : 10=2.28%, 20=18.33%, 50=17.94%, 100=19.99%, 250=34.34% lat (msec) : 500=6.64%, 750=0.39%, 1000=0.07%, 2000=0.03% cpu : usr=0.04%, sys=1.23%, ctx=5279, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145285: Sat Aug 22 04:25:07 2026 read: IOPS=4, BW=19.4KiB/s (19.9kB/s)(6052KiB/311797msec) clat (msec): min=5, max=590, avg=38.73, stdev=43.70 lat (msec): min=5, max=590, avg=38.73, stdev=43.70 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 20], 50.00th=[ 23], 60.00th=[ 28], | 70.00th=[ 34], 80.00th=[ 51], 90.00th=[ 92], 95.00th=[ 127], | 99.00th=[ 201], 99.50th=[ 228], 99.90th=[ 443], 99.95th=[ 592], | 99.99th=[ 592] bw ( KiB/s): min= 7, max= 111, per=31.05%, avg=23.60, stdev=16.96, samples=494 iops : min= 1, max= 27, avg= 5.26, stdev= 4.28, samples=494 write: IOPS=5, BW=20.0KiB/s (20.5kB/s)(6236KiB/311797msec); 0 zone resets clat (msec): min=40, max=1778, avg=162.06, stdev=102.01 lat (msec): min=40, max=1778, avg=162.06, stdev=102.01 clat percentiles (msec): | 1.00th=[ 55], 5.00th=[ 70], 10.00th=[ 79], 20.00th=[ 92], | 30.00th=[ 106], 40.00th=[ 120], 50.00th=[ 134], 60.00th=[ 150], | 70.00th=[ 178], 80.00th=[ 222], 90.00th=[ 284], 95.00th=[ 338], | 99.00th=[ 527], 99.50th=[ 575], 99.90th=[ 877], 99.95th=[ 1770], | 99.99th=[ 1770] bw ( KiB/s): min= 7, max= 47, per=25.12%, avg=20.10, stdev=10.22, samples=593 iops : min= 1, max= 11, avg= 4.38, stdev= 2.62, samples=593 lat (msec) : 10=2.25%, 20=17.87%, 50=19.40%, 100=18.65%, 250=34.08% lat (msec) : 500=7.03%, 750=0.65%, 1000=0.03%, 2000=0.03% cpu : usr=0.04%, sys=1.26%, ctx=5333, 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=76.6KiB/s (78.4kB/s), 18.9KiB/s-19.4KiB/s (19.4kB/s-19.9kB/s), io=23.4MiB (24.6MB), run=310371-313465msec WRITE: bw=80.2KiB/s (82.1kB/s), 20.0KiB/s-20.3KiB/s (20.5kB/s-20.8kB/s), io=24.6MiB (25.7MB), run=310371-313465msec 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=145351: Sat Aug 22 04:25:51 2026 read: IOPS=12, BW=200KiB/s (204kB/s)(5920KiB/29661msec) clat (usec): min=28, max=278542, avg=41733.93, stdev=38057.48 lat (usec): min=29, max=278543, avg=41735.09, stdev=38057.49 clat percentiles (usec): | 1.00th=[ 38], 5.00th=[ 53], 10.00th=[ 59], 20.00th=[ 84], | 30.00th=[ 20317], 40.00th=[ 31589], 50.00th=[ 38536], 60.00th=[ 45351], | 70.00th=[ 52691], 80.00th=[ 66847], 90.00th=[ 87557], 95.00th=[110625], | 99.00th=[175113], 99.50th=[200279], 99.90th=[278922], 99.95th=[278922], | 99.99th=[278922] bw ( KiB/s): min= 31, max= 445, per=26.16%, avg=199.05, stdev=72.14, samples=58 iops : min= 1, max= 27, avg=11.64, stdev= 4.54, samples=58 write: IOPS=13, BW=215KiB/s (220kB/s)(6368KiB/29661msec); 0 zone resets clat (usec): min=1536, max=265232, avg=35410.91, stdev=39058.38 lat (usec): min=1538, max=265235, avg=35414.36, stdev=39058.16 clat percentiles (usec): | 1.00th=[ 1680], 5.00th=[ 1926], 10.00th=[ 2409], 20.00th=[ 4555], | 30.00th=[ 7111], 40.00th=[ 11338], 50.00th=[ 21365], 60.00th=[ 32637], | 70.00th=[ 44827], 80.00th=[ 59507], 90.00th=[ 94897], 95.00th=[116917], | 99.00th=[158335], 99.50th=[191890], 99.90th=[265290], 99.95th=[265290], | 99.99th=[265290] bw ( KiB/s): min= 31, max= 413, per=26.84%, avg=214.97, stdev=85.61, samples=58 iops : min= 1, max= 25, avg=12.64, stdev= 5.41, samples=58 lat (usec) : 50=1.56%, 100=8.85%, 250=0.91%, 500=0.13%, 750=0.26% lat (usec) : 1000=0.13% lat (msec) : 2=3.39%, 4=6.12%, 10=10.42%, 20=7.16%, 50=31.38% lat (msec) : 100=22.01%, 250=7.42%, 500=0.26% cpu : usr=0.07%, sys=6.30%, ctx=1404, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145352: Sat Aug 22 04:25:51 2026 read: IOPS=11, BW=185KiB/s (189kB/s)(5744KiB/31086msec) clat (usec): min=33, max=251139, avg=42715.61, stdev=40498.31 lat (usec): min=33, max=251140, avg=42716.78, stdev=40498.38 clat percentiles (usec): | 1.00th=[ 41], 5.00th=[ 55], 10.00th=[ 61], 20.00th=[ 75], | 30.00th=[ 18220], 40.00th=[ 30802], 50.00th=[ 40633], 60.00th=[ 46924], | 70.00th=[ 56361], 80.00th=[ 68682], 90.00th=[ 92799], 95.00th=[104334], | 99.00th=[229639], 99.50th=[238027], 99.90th=[250610], 99.95th=[250610], | 99.99th=[250610] bw ( KiB/s): min= 29, max= 351, per=24.60%, avg=187.20, stdev=74.59, samples=60 iops : min= 1, max= 21, avg=10.88, stdev= 4.68, samples=60 write: IOPS=13, BW=211KiB/s (216kB/s)(6544KiB/31086msec); 0 zone resets clat (usec): min=1489, max=227746, avg=37542.79, stdev=40813.58 lat (usec): min=1490, max=227750, avg=37548.11, stdev=40813.26 clat percentiles (usec): | 1.00th=[ 1549], 5.00th=[ 2180], 10.00th=[ 3359], 20.00th=[ 5866], | 30.00th=[ 8586], 40.00th=[ 12649], 50.00th=[ 20841], 60.00th=[ 33162], | 70.00th=[ 46400], 80.00th=[ 66323], 90.00th=[ 96994], 95.00th=[123208], | 99.00th=[189793], 99.50th=[210764], 99.90th=[227541], 99.95th=[227541], | 99.99th=[227541] bw ( KiB/s): min= 29, max= 479, per=26.19%, avg=209.75, stdev=98.18, samples=61 iops : min= 1, max= 29, avg=12.30, stdev= 6.14, samples=61 lat (usec) : 50=1.69%, 100=10.03%, 250=0.65%, 1000=0.26% lat (msec) : 2=2.08%, 4=4.69%, 10=11.20%, 20=10.42%, 50=26.69% lat (msec) : 100=25.00%, 250=7.16%, 500=0.13% cpu : usr=0.11%, sys=6.11%, ctx=1406, 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=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=145353: Sat Aug 22 04:25:51 2026 read: IOPS=12, BW=199KiB/s (204kB/s)(6256KiB/31440msec) clat (usec): min=32, max=295842, avg=41464.70, stdev=42616.26 lat (usec): min=32, max=295844, avg=41467.55, stdev=42614.56 clat percentiles (usec): | 1.00th=[ 38], 5.00th=[ 53], 10.00th=[ 59], 20.00th=[ 69], | 30.00th=[ 3359], 40.00th=[ 26084], 50.00th=[ 36439], 60.00th=[ 48497], | 70.00th=[ 55837], 80.00th=[ 68682], 90.00th=[ 92799], 95.00th=[110625], | 99.00th=[248513], 99.50th=[287310], 99.90th=[295699], 99.95th=[295699], | 99.99th=[295699] bw ( KiB/s): min= 31, max= 443, per=26.60%, avg=202.44, stdev=79.99, samples=61 iops : min= 1, max= 27, avg=11.85, stdev= 5.02, samples=61 write: IOPS=11, BW=192KiB/s (196kB/s)(6032KiB/31440msec); 0 zone resets clat (usec): min=1472, max=239204, avg=39681.47, stdev=42509.49 lat (usec): min=1473, max=239207, avg=39684.10, stdev=42509.75 clat percentiles (usec): | 1.00th=[ 1549], 5.00th=[ 1827], 10.00th=[ 2704], 20.00th=[ 5342], | 30.00th=[ 9110], 40.00th=[ 14484], 50.00th=[ 25560], 60.00th=[ 35390], | 70.00th=[ 52691], 80.00th=[ 72877], 90.00th=[ 96994], 95.00th=[123208], | 99.00th=[193987], 99.50th=[227541], 99.90th=[240124], 99.95th=[240124], | 99.99th=[240124] bw ( KiB/s): min= 29, max= 352, per=23.78%, avg=190.45, stdev=75.42, samples=62 iops : min= 1, max= 22, avg=11.10, stdev= 4.78, samples=62 lat (usec) : 50=1.95%, 100=10.81%, 250=1.56%, 750=0.13% lat (msec) : 2=4.43%, 4=3.39%, 10=9.11%, 20=8.46%, 50=26.17% lat (msec) : 100=25.91%, 250=7.68%, 500=0.39% cpu : usr=0.07%, sys=6.07%, ctx=1429, 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=145354: Sat Aug 22 04:25:51 2026 read: IOPS=12, BW=193KiB/s (198kB/s)(6032KiB/31187msec) clat (usec): min=36, max=200927, avg=41678.82, stdev=36370.28 lat (usec): min=36, max=200927, avg=41679.91, stdev=36370.25 clat percentiles (usec): | 1.00th=[ 39], 5.00th=[ 53], 10.00th=[ 60], 20.00th=[ 75], | 30.00th=[ 18220], 40.00th=[ 31589], 50.00th=[ 39584], 60.00th=[ 49021], | 70.00th=[ 56886], 80.00th=[ 69731], 90.00th=[ 88605], 95.00th=[107480], | 99.00th=[152044], 99.50th=[179307], 99.90th=[200279], 99.95th=[200279], | 99.99th=[200279] bw ( KiB/s): min= 31, max= 379, per=26.03%, avg=198.08, stdev=81.92, samples=59 iops : min= 1, max= 23, avg=11.56, stdev= 5.13, samples=59 write: IOPS=12, BW=201KiB/s (205kB/s)(6256KiB/31187msec); 0 zone resets clat (usec): min=1448, max=372780, avg=38502.23, stdev=47722.75 lat (usec): min=1450, max=372781, avg=38506.64, stdev=47722.56 clat percentiles (usec): | 1.00th=[ 1631], 5.00th=[ 1893], 10.00th=[ 3261], 20.00th=[ 5473], | 30.00th=[ 8160], 40.00th=[ 12125], 50.00th=[ 18220], 60.00th=[ 29230], | 70.00th=[ 46924], 80.00th=[ 67634], 90.00th=[ 93848], 95.00th=[132645], | 99.00th=[212861], 99.50th=[308282], 99.90th=[371196], 99.95th=[371196], | 99.99th=[371196] bw ( KiB/s): min= 30, max= 447, per=24.88%, avg=199.26, stdev=93.04, samples=61 iops : min= 1, max= 27, avg=11.64, stdev= 5.86, samples=61 lat (usec) : 50=1.69%, 100=10.42%, 250=1.17%, 500=0.13% lat (msec) : 2=3.12%, 4=3.78%, 10=11.46%, 20=10.29%, 50=24.22% lat (msec) : 100=26.17%, 250=7.29%, 500=0.26% cpu : usr=0.06%, sys=5.76%, ctx=1419, 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=762KiB/s (780kB/s), 185KiB/s-200KiB/s (189kB/s-204kB/s), io=23.4MiB (24.5MB), run=29661-31440msec WRITE: bw=802KiB/s (821kB/s), 192KiB/s-215KiB/s (196kB/s-220kB/s), io=24.6MiB (25.8MB), run=29661-31440msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145347: Sat Aug 22 04:26:38 2026 read: IOPS=4, BW=76.0KiB/s (78.8kB/s)(5920KiB/76932msec) clat (msec): min=7, max=219, avg=40.92, stdev=36.01 lat (msec): min=7, max=219, avg=40.92, stdev=36.01 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 13], 10.00th=[ 16], 20.00th=[ 18], | 30.00th=[ 22], 40.00th=[ 25], 50.00th=[ 29], 60.00th=[ 33], | 70.00th=[ 42], 80.00th=[ 52], 90.00th=[ 89], 95.00th=[ 120], | 99.00th=[ 197], 99.50th=[ 215], 99.90th=[ 220], 99.95th=[ 220], | 99.99th=[ 220] bw ( KiB/s): min= 31, max= 255, per=29.21%, avg=89.38, stdev=49.62, samples=130 iops : min= 1, max= 15, avg= 4.78, stdev= 3.12, samples=130 write: IOPS=5, BW=82.8KiB/s (84.8kB/s)(6368KiB/76932msec); 0 zone resets clat (msec): min=49, max=512, avg=154.74, stdev=67.68 lat (msec): min=49, max=512, avg=154.74, stdev=67.68 clat percentiles (msec): | 1.00th=[ 56], 5.00th=[ 75], 10.00th=[ 86], 20.00th=[ 103], | 30.00th=[ 113], 40.00th=[ 123], 50.00th=[ 134], 60.00th=[ 159], | 70.00th=[ 176], 80.00th=[ 207], 90.00th=[ 243], 95.00th=[ 275], | 99.00th=[ 405], 99.50th=[ 443], 99.90th=[ 514], 99.95th=[ 514], | 99.99th=[ 514] bw ( KiB/s): min= 31, max= 159, per=25.88%, avg=83.32, stdev=34.13, samples=150 iops : min= 1, max= 9, avg= 4.39, stdev= 2.18, samples=150 lat (msec) : 10=0.52%, 20=13.15%, 50=24.48%, 100=14.97%, 250=42.45% lat (msec) : 500=4.30%, 750=0.13% cpu : usr=0.05%, sys=1.44%, ctx=1377, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145348: Sat Aug 22 04:26:38 2026 read: IOPS=4, BW=73.6KiB/s (75.3kB/s)(5744KiB/78083msec) clat (msec): min=8, max=293, avg=41.74, stdev=39.78 lat (msec): min=8, max=293, avg=41.74, stdev=39.78 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 14], 10.00th=[ 15], 20.00th=[ 18], | 30.00th=[ 22], 40.00th=[ 24], 50.00th=[ 29], 60.00th=[ 34], | 70.00th=[ 41], 80.00th=[ 58], 90.00th=[ 82], 95.00th=[ 125], | 99.00th=[ 239], 99.50th=[ 266], 99.90th=[ 292], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 30, max= 317, per=29.30%, avg=89.65, stdev=56.16, samples=125 iops : min= 1, max= 19, avg= 4.78, stdev= 3.58, samples=125 write: IOPS=5, BW=83.8KiB/s (85.8kB/s)(6544KiB/78083msec); 0 zone resets clat (msec): min=44, max=494, avg=154.09, stdev=71.76 lat (msec): min=44, max=494, avg=154.09, stdev=71.76 clat percentiles (msec): | 1.00th=[ 62], 5.00th=[ 75], 10.00th=[ 84], 20.00th=[ 95], | 30.00th=[ 108], 40.00th=[ 123], 50.00th=[ 140], 60.00th=[ 153], | 70.00th=[ 171], 80.00th=[ 197], 90.00th=[ 255], 95.00th=[ 296], | 99.00th=[ 393], 99.50th=[ 430], 99.90th=[ 493], 99.95th=[ 493], | 99.99th=[ 493] bw ( KiB/s): min= 30, max= 160, per=26.11%, avg=84.09, stdev=36.51, samples=152 iops : min= 1, max= 10, avg= 4.43, stdev= 2.31, samples=152 lat (msec) : 10=0.39%, 20=12.50%, 50=23.31%, 100=18.75%, 250=38.93% lat (msec) : 500=6.12% cpu : usr=0.04%, sys=1.42%, ctx=1371, 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=145349: Sat Aug 22 04:26:38 2026 read: IOPS=5, BW=82.3KiB/s (84.2kB/s)(6256KiB/76057msec) clat (msec): min=7, max=244, avg=42.09, stdev=40.23 lat (msec): min=7, max=244, avg=42.10, stdev=40.23 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 13], 10.00th=[ 16], 20.00th=[ 18], | 30.00th=[ 21], 40.00th=[ 24], 50.00th=[ 28], 60.00th=[ 33], | 70.00th=[ 43], 80.00th=[ 56], 90.00th=[ 81], 95.00th=[ 129], | 99.00th=[ 215], 99.50th=[ 241], 99.90th=[ 245], 99.95th=[ 245], | 99.99th=[ 245] bw ( KiB/s): min= 31, max= 316, per=31.06%, avg=95.03, stdev=63.19, samples=130 iops : min= 1, max= 19, avg= 5.11, stdev= 4.02, samples=130 write: IOPS=4, BW=79.3KiB/s (81.2kB/s)(6032KiB/76057msec); 0 zone resets clat (msec): min=51, max=555, avg=157.37, stdev=67.24 lat (msec): min=51, max=555, avg=157.38, stdev=67.24 clat percentiles (msec): | 1.00th=[ 64], 5.00th=[ 75], 10.00th=[ 86], 20.00th=[ 105], | 30.00th=[ 117], 40.00th=[ 132], 50.00th=[ 146], 60.00th=[ 161], | 70.00th=[ 174], 80.00th=[ 207], 90.00th=[ 247], 95.00th=[ 284], | 99.00th=[ 372], 99.50th=[ 418], 99.90th=[ 558], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 31, max= 159, per=24.58%, avg=79.14, stdev=32.88, samples=149 iops : min= 1, max= 9, avg= 4.11, stdev= 2.07, samples=149 lat (msec) : 10=0.78%, 20=13.28%, 50=25.13%, 100=16.41%, 250=40.23% lat (msec) : 500=4.04%, 750=0.13% cpu : usr=0.04%, sys=1.44%, ctx=1415, 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=145350: Sat Aug 22 04:26:38 2026 read: IOPS=4, BW=77.6KiB/s (79.4kB/s)(6032KiB/77751msec) clat (msec): min=7, max=303, avg=39.67, stdev=35.65 lat (msec): min=7, max=303, avg=39.67, stdev=35.66 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 13], 10.00th=[ 16], 20.00th=[ 19], | 30.00th=[ 22], 40.00th=[ 24], 50.00th=[ 29], 60.00th=[ 33], | 70.00th=[ 40], 80.00th=[ 51], 90.00th=[ 78], 95.00th=[ 116], | 99.00th=[ 184], 99.50th=[ 251], 99.90th=[ 305], 99.95th=[ 305], | 99.99th=[ 305] bw ( KiB/s): min= 30, max= 249, per=29.44%, avg=90.09, stdev=53.52, samples=131 iops : min= 1, max= 15, avg= 4.82, stdev= 3.37, samples=131 write: IOPS=5, BW=80.5KiB/s (82.4kB/s)(6256KiB/77751msec); 0 zone resets clat (msec): min=58, max=549, avg=159.99, stdev=71.82 lat (msec): min=58, max=549, avg=160.01, stdev=71.82 clat percentiles (msec): | 1.00th=[ 64], 5.00th=[ 80], 10.00th=[ 91], 20.00th=[ 105], | 30.00th=[ 116], 40.00th=[ 130], 50.00th=[ 142], 60.00th=[ 155], | 70.00th=[ 176], 80.00th=[ 207], 90.00th=[ 264], 95.00th=[ 292], | 99.00th=[ 388], 99.50th=[ 443], 99.90th=[ 550], 99.95th=[ 550], | 99.99th=[ 550] bw ( KiB/s): min= 31, max= 159, per=25.21%, avg=81.16, stdev=36.02, samples=152 iops : min= 1, max= 9, avg= 4.25, stdev= 2.26, samples=152 lat (msec) : 10=0.39%, 20=12.24%, 50=26.56%, 100=15.63%, 250=38.93% lat (msec) : 500=6.12%, 750=0.13% cpu : usr=0.05%, sys=1.38%, ctx=1357, 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=307KiB/s (314kB/s), 73.6KiB/s-82.3KiB/s (75.3kB/s-84.2kB/s), io=23.4MiB (24.5MB), run=76057-78083msec WRITE: bw=323KiB/s (330kB/s), 79.3KiB/s-83.8KiB/s (81.2kB/s-85.8kB/s), io=24.6MiB (25.8MB), run=76057-78083msec 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=145373: Sat Aug 22 04:26:53 2026 read: IOPS=2, BW=2774KiB/s (2841kB/s)(7168KiB/2584msec) clat (usec): min=1188, max=393629, avg=210411.77, stdev=117196.34 lat (usec): min=1190, max=393630, avg=210413.12, stdev=117196.07 clat percentiles (usec): | 1.00th=[ 1188], 5.00th=[ 1188], 10.00th=[ 1188], 20.00th=[173016], | 30.00th=[189793], 40.00th=[189793], 50.00th=[219153], 60.00th=[233833], | 70.00th=[233833], 80.00th=[261096], 90.00th=[392168], 95.00th=[392168], | 99.00th=[392168], 99.50th=[392168], 99.90th=[392168], 99.95th=[392168], | 99.99th=[392168] bw ( KiB/s): min= 1622, max= 4071, per=68.77%, avg=3249.33, stdev=1409.33, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=1, BW=1981KiB/s (2029kB/s)(5120KiB/2584msec); 0 zone resets clat (msec): min=91, max=313, avg=165.87, stdev=88.95 lat (msec): min=91, max=313, avg=165.95, stdev=88.96 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 92], 10.00th=[ 92], 20.00th=[ 92], | 30.00th=[ 104], 40.00th=[ 104], 50.00th=[ 148], 60.00th=[ 148], | 70.00th=[ 174], 80.00th=[ 174], 90.00th=[ 313], 95.00th=[ 313], | 99.00th=[ 313], 99.50th=[ 313], 99.90th=[ 313], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 2035, max= 4079, per=46.21%, avg=3057.00, stdev=1445.33, samples=2 iops : min= 1, max= 3, avg= 2.00, stdev= 1.41, samples=2 lat (msec) : 2=8.33%, 100=8.33%, 250=58.33%, 500=25.00% cpu : usr=0.00%, sys=14.59%, ctx=176, 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=145374: Sat Aug 22 04:26:53 2026 read: IOPS=0, BW=473KiB/s (484kB/s)(2048KiB/4334msec) clat (usec): min=657, max=193914, avg=97286.26, stdev=136653.33 lat (usec): min=659, max=193917, avg=97288.13, stdev=136654.07 clat percentiles (usec): | 1.00th=[ 660], 5.00th=[ 660], 10.00th=[ 660], 20.00th=[ 660], | 30.00th=[ 660], 40.00th=[ 660], 50.00th=[ 660], 60.00th=[193987], | 70.00th=[193987], 80.00th=[193987], 90.00th=[193987], 95.00th=[193987], | 99.00th=[193987], 99.50th=[193987], 99.90th=[193987], 99.95th=[193987], | 99.99th=[193987] bw ( KiB/s): min= 1512, max= 1976, per=36.91%, avg=1744.00, stdev=328.10, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2363KiB/s (2419kB/s)(10.0MiB/4334msec); 0 zone resets clat (msec): min=122, max=1091, avg=404.60, stdev=297.68 lat (msec): min=122, max=1091, avg=404.67, stdev=297.67 clat percentiles (msec): | 1.00th=[ 123], 5.00th=[ 123], 10.00th=[ 123], 20.00th=[ 165], | 30.00th=[ 236], 40.00th=[ 245], 50.00th=[ 279], 60.00th=[ 326], | 70.00th=[ 330], 80.00th=[ 592], 90.00th=[ 667], 95.00th=[ 1099], | 99.00th=[ 1099], 99.50th=[ 1099], 99.90th=[ 1099], 99.95th=[ 1099], | 99.99th=[ 1099] bw ( KiB/s): min= 1512, max= 6083, per=39.49%, avg=2612.00, stdev=1712.65, samples=6 iops : min= 1, max= 5, avg= 1.67, stdev= 1.63, samples=6 lat (usec) : 750=8.33% lat (msec) : 250=41.67%, 500=25.00%, 750=16.67%, 2000=8.33% cpu : usr=0.00%, sys=11.98%, ctx=147, 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=145375: Sat Aug 22 04:26:53 2026 read: IOPS=1, BW=1504KiB/s (1540kB/s)(6144KiB/4085msec) clat (usec): min=490, max=259163, avg=153266.05, stdev=123378.66 lat (usec): min=491, max=259164, avg=153267.14, stdev=123378.67 clat percentiles (usec): | 1.00th=[ 490], 5.00th=[ 490], 10.00th=[ 490], 20.00th=[ 1254], | 30.00th=[ 1254], 40.00th=[160433], 50.00th=[160433], 60.00th=[246416], | 70.00th=[250610], 80.00th=[250610], 90.00th=[258999], 95.00th=[258999], | 99.00th=[258999], 99.50th=[258999], 99.90th=[258999], 99.95th=[258999], | 99.99th=[258999] bw ( KiB/s): min= 4079, max= 6083, per=100.00%, avg=5081.00, stdev=1417.04, samples=2 iops : min= 3, max= 5, avg= 4.00, stdev= 1.41, samples=2 write: IOPS=1, BW=1504KiB/s (1540kB/s)(6144KiB/4085msec); 0 zone resets clat (msec): min=149, max=957, avg=498.14, stdev=374.97 lat (msec): min=149, max=957, avg=498.66, stdev=374.52 clat percentiles (msec): | 1.00th=[ 150], 5.00th=[ 150], 10.00th=[ 150], 20.00th=[ 176], | 30.00th=[ 176], 40.00th=[ 184], 50.00th=[ 184], 60.00th=[ 634], | 70.00th=[ 885], 80.00th=[ 885], 90.00th=[ 961], 95.00th=[ 961], | 99.00th=[ 961], 99.50th=[ 961], 99.90th=[ 961], 99.95th=[ 961], | 99.99th=[ 961] bw ( KiB/s): min= 1670, max= 4071, per=37.06%, avg=2451.75, stdev=1092.99, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (usec) : 500=8.33% lat (msec) : 2=8.33%, 250=41.67%, 500=16.67%, 750=8.33%, 1000=16.67% cpu : usr=0.02%, sys=10.21%, ctx=139, 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=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=145377: Sat Aug 22 04:26:53 2026 read: IOPS=1, BW=1621KiB/s (1660kB/s)(5120KiB/3158msec) clat (usec): min=541, max=234405, avg=105664.31, stdev=103269.13 lat (usec): min=542, max=234406, avg=105665.61, stdev=103268.84 clat percentiles (usec): | 1.00th=[ 545], 5.00th=[ 545], 10.00th=[ 545], 20.00th=[ 545], | 30.00th=[ 1713], 40.00th=[ 1713], 50.00th=[123208], 60.00th=[123208], | 70.00th=[168821], 80.00th=[168821], 90.00th=[233833], 95.00th=[233833], | 99.00th=[233833], 99.50th=[233833], 99.90th=[233833], 99.95th=[233833], | 99.99th=[233833] bw ( KiB/s): min= 8110, max= 8110, per=100.00%, avg=8110.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=2, BW=2270KiB/s (2324kB/s)(7168KiB/3158msec); 0 zone resets clat (msec): min=181, max=904, avg=357.32, stdev=253.39 lat (msec): min=181, max=904, avg=357.40, stdev=253.39 clat percentiles (msec): | 1.00th=[ 182], 5.00th=[ 182], 10.00th=[ 182], 20.00th=[ 188], | 30.00th=[ 205], 40.00th=[ 205], 50.00th=[ 300], 60.00th=[ 355], | 70.00th=[ 355], 80.00th=[ 368], 90.00th=[ 902], 95.00th=[ 902], | 99.00th=[ 902], 99.50th=[ 902], 99.90th=[ 902], 99.95th=[ 902], | 99.99th=[ 902] bw ( KiB/s): min= 1615, max= 4079, per=44.57%, avg=2948.00, stdev=1312.18, 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=50.00%, 500=25.00%, 1000=8.33% cpu : usr=0.06%, sys=11.75%, ctx=113, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=4725KiB/s (4839kB/s), 473KiB/s-2774KiB/s (484kB/s-2841kB/s), io=20.0MiB (20.0MB), run=2584-4334msec WRITE: bw=6616KiB/s (6774kB/s), 1504KiB/s-2363KiB/s (1540kB/s-2419kB/s), io=28.0MiB (29.4MB), run=2584-4334msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145378: Sat Aug 22 04:26:54 2026 read: IOPS=1, BW=1580KiB/s (1618kB/s)(7168KiB/4537msec) clat (msec): min=62, max=855, avg=306.26, stdev=284.49 lat (msec): min=62, max=855, avg=306.26, stdev=284.49 clat percentiles (msec): | 1.00th=[ 63], 5.00th=[ 63], 10.00th=[ 63], 20.00th=[ 104], | 30.00th=[ 129], 40.00th=[ 129], 50.00th=[ 186], 60.00th=[ 313], | 70.00th=[ 313], 80.00th=[ 498], 90.00th=[ 860], 95.00th=[ 860], | 99.00th=[ 860], 99.50th=[ 860], 99.90th=[ 860], 99.95th=[ 860], | 99.99th=[ 860] bw ( KiB/s): min= 1393, max= 2043, per=48.81%, avg=1921.33, stdev=259.06, samples=6 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=6 write: IOPS=1, BW=1128KiB/s (1156kB/s)(5120KiB/4537msec); 0 zone resets clat (msec): min=274, max=589, avg=422.80, stdev=145.64 lat (msec): min=274, max=598, avg=426.36, stdev=147.33 clat percentiles (msec): | 1.00th=[ 275], 5.00th=[ 275], 10.00th=[ 275], 20.00th=[ 275], | 30.00th=[ 330], 40.00th=[ 330], 50.00th=[ 351], 60.00th=[ 351], | 70.00th=[ 567], 80.00th=[ 567], 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= 2019, max= 2043, per=36.91%, avg=2034.00, stdev=11.49, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 lat (msec) : 100=8.33%, 250=25.00%, 500=41.67%, 750=16.67%, 1000=8.33% cpu : usr=0.02%, sys=3.17%, ctx=80, 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=145379: Sat Aug 22 04:26:54 2026 read: IOPS=0, BW=394KiB/s (403kB/s)(2048KiB/5203msec) clat (msec): min=94, max=140, avg=117.64, stdev=33.01 lat (msec): min=94, max=140, avg=117.64, stdev=33.01 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 94], 10.00th=[ 94], 20.00th=[ 94], | 30.00th=[ 94], 40.00th=[ 94], 50.00th=[ 94], 60.00th=[ 142], | 70.00th=[ 142], 80.00th=[ 142], 90.00th=[ 142], 95.00th=[ 142], | 99.00th=[ 142], 99.50th=[ 142], 99.90th=[ 142], 99.95th=[ 142], | 99.99th=[ 142] bw ( KiB/s): min= 1436, max= 2043, per=44.19%, avg=1739.50, stdev=429.21, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1968KiB/s (2015kB/s)(10.0MiB/5203msec); 0 zone resets clat (msec): min=240, max=1085, avg=468.67, stdev=264.46 lat (msec): min=240, max=1085, avg=469.00, stdev=264.45 clat percentiles (msec): | 1.00th=[ 241], 5.00th=[ 241], 10.00th=[ 241], 20.00th=[ 247], | 30.00th=[ 253], 40.00th=[ 330], 50.00th=[ 418], 60.00th=[ 435], | 70.00th=[ 464], 80.00th=[ 472], 90.00th=[ 751], 95.00th=[ 1083], | 99.00th=[ 1083], 99.50th=[ 1083], 99.90th=[ 1083], 99.95th=[ 1083], | 99.99th=[ 1083] bw ( KiB/s): min= 2011, max= 4063, per=42.11%, avg=2320.14, stdev=768.62, samples=7 iops : min= 1, max= 3, avg= 1.29, stdev= 0.76, samples=7 lat (msec) : 100=8.33%, 250=25.00%, 500=50.00%, 750=8.33%, 2000=8.33% cpu : usr=0.00%, sys=2.79%, ctx=79, 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=145380: Sat Aug 22 04:26:54 2026 read: IOPS=1, BW=1440KiB/s (1474kB/s)(6144KiB/4267msec) clat (msec): min=111, max=530, avg=225.39, stdev=152.33 lat (msec): min=111, max=530, avg=225.39, stdev=152.33 clat percentiles (msec): | 1.00th=[ 112], 5.00th=[ 112], 10.00th=[ 112], 20.00th=[ 159], | 30.00th=[ 159], 40.00th=[ 176], 50.00th=[ 176], 60.00th=[ 186], | 70.00th=[ 190], 80.00th=[ 190], 90.00th=[ 531], 95.00th=[ 531], | 99.00th=[ 531], 99.50th=[ 531], 99.90th=[ 531], 99.95th=[ 531], | 99.99th=[ 531] bw ( KiB/s): min= 2011, max= 4087, per=64.53%, avg=2540.00, stdev=1031.42, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1440KiB/s (1474kB/s)(6144KiB/4267msec); 0 zone resets clat (msec): min=259, max=857, avg=473.37, stdev=210.60 lat (msec): min=259, max=857, avg=473.45, stdev=210.61 clat percentiles (msec): | 1.00th=[ 259], 5.00th=[ 259], 10.00th=[ 259], 20.00th=[ 334], | 30.00th=[ 334], 40.00th=[ 401], 50.00th=[ 401], 60.00th=[ 460], | 70.00th=[ 535], 80.00th=[ 535], 90.00th=[ 860], 95.00th=[ 860], | 99.00th=[ 860], 99.50th=[ 860], 99.90th=[ 860], 99.95th=[ 860], | 99.99th=[ 860] bw ( KiB/s): min= 1406, max= 2043, per=34.98%, avg=1927.50, stdev=255.75, samples=6 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=6 lat (msec) : 250=41.67%, 500=33.33%, 750=16.67%, 1000=8.33% cpu : usr=0.00%, sys=3.31%, ctx=49, 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=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=145381: Sat Aug 22 04:26:54 2026 read: IOPS=1, BW=1063KiB/s (1089kB/s)(5120KiB/4815msec) clat (msec): min=76, max=352, avg=206.71, stdev=117.61 lat (msec): min=76, max=352, avg=206.71, stdev=117.61 clat percentiles (msec): | 1.00th=[ 78], 5.00th=[ 78], 10.00th=[ 78], 20.00th=[ 78], | 30.00th=[ 123], 40.00th=[ 123], 50.00th=[ 178], 60.00th=[ 178], | 70.00th=[ 305], 80.00th=[ 305], 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= 2019, max= 4087, per=68.91%, avg=2712.33, stdev=1190.51, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=1, BW=1489KiB/s (1524kB/s)(7168KiB/4815msec); 0 zone resets clat (msec): min=234, max=827, avg=509.89, stdev=226.60 lat (msec): min=234, max=827, avg=509.98, stdev=226.59 clat percentiles (msec): | 1.00th=[ 234], 5.00th=[ 234], 10.00th=[ 234], 20.00th=[ 241], | 30.00th=[ 426], 40.00th=[ 426], 50.00th=[ 498], 60.00th=[ 667], | 70.00th=[ 667], 80.00th=[ 676], 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= 2011, max= 6095, per=51.54%, avg=2839.80, stdev=1819.75, samples=5 iops : min= 1, max= 5, avg= 1.80, stdev= 1.79, samples=5 lat (msec) : 100=8.33%, 250=33.33%, 500=33.33%, 750=16.67%, 1000=8.33% cpu : usr=0.00%, sys=3.55%, ctx=84, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=3936KiB/s (4031kB/s), 394KiB/s-1580KiB/s (403kB/s-1618kB/s), io=20.0MiB (20.0MB), run=4267-5203msec WRITE: bw=5511KiB/s (5643kB/s), 1128KiB/s-1968KiB/s (1156kB/s-2015kB/s), io=28.0MiB (29.4MB), run=4267-5203msec 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=145388: Sat Aug 22 04:27:11 2026 read: IOPS=0, BW=3798KiB/s (3890kB/s)(12.0MiB/3235msec) clat (msec): min=875, max=1123, avg=1029.05, stdev=134.23 lat (msec): min=875, max=1123, avg=1029.05, stdev=134.23 clat percentiles (msec): | 1.00th=[ 877], 5.00th=[ 877], 10.00th=[ 877], 20.00th=[ 877], | 30.00th=[ 877], 40.00th=[ 1083], 50.00th=[ 1083], 60.00th=[ 1083], | 70.00th=[ 1116], 80.00th=[ 1116], 90.00th=[ 1116], 95.00th=[ 1116], | 99.00th=[ 1116], 99.50th=[ 1116], 99.90th=[ 1116], 99.95th=[ 1116], | 99.99th=[ 1116] bw ( KiB/s): min= 7984, max= 8000, per=100.00%, avg=7992.00, 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=0.00%, sys=12.77%, ctx=230, 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=145390: Sat Aug 22 04:27:11 2026 read: IOPS=0, BW=1116KiB/s (1143kB/s)(4096KiB/3670msec) clat (nsec): min=1133.5M, max=1133.5M, avg=1133458650.00, stdev= 0.00 lat (nsec): min=1133.5M, max=1133.5M, avg=1133461012.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1133], 5.00th=[ 1133], 10.00th=[ 1133], 20.00th=[ 1133], | 30.00th=[ 1133], 40.00th=[ 1133], 50.00th=[ 1133], 60.00th=[ 1133], | 70.00th=[ 1133], 80.00th=[ 1133], 90.00th=[ 1133], 95.00th=[ 1133], | 99.00th=[ 1133], 99.50th=[ 1133], 99.90th=[ 1133], 99.95th=[ 1133], | 99.99th=[ 1133] bw ( KiB/s): min= 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=2232KiB/s (2286kB/s)(8192KiB/3670msec); 0 zone resets clat (msec): min=517, max=1975, avg=1246.34, stdev=1030.69 lat (msec): min=517, max=1975, avg=1246.66, stdev=1030.65 clat percentiles (msec): | 1.00th=[ 518], 5.00th=[ 518], 10.00th=[ 518], 20.00th=[ 518], | 30.00th=[ 518], 40.00th=[ 518], 50.00th=[ 518], 60.00th=[ 1972], | 70.00th=[ 1972], 80.00th=[ 1972], 90.00th=[ 1972], 95.00th=[ 1972], | 99.00th=[ 1972], 99.50th=[ 1972], 99.90th=[ 1972], 99.95th=[ 1972], | 99.99th=[ 1972] bw ( KiB/s): min= 8047, max= 8047, per=90.13%, avg=8047.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=33.33%, 2000=66.67% cpu : usr=0.00%, sys=3.43%, ctx=61, 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=145391: Sat Aug 22 04:27:11 2026 write: IOPS=1, BW=4528KiB/s (4636kB/s)(12.0MiB/2714msec); 0 zone resets clat (msec): min=683, max=1264, avg=886.77, stdev=327.31 lat (msec): min=683, max=1264, avg=887.11, stdev=327.17 clat percentiles (msec): | 1.00th=[ 684], 5.00th=[ 684], 10.00th=[ 684], 20.00th=[ 684], | 30.00th=[ 684], 40.00th=[ 709], 50.00th=[ 709], 60.00th=[ 709], | 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= 7861, max= 8159, per=89.72%, avg=8010.00, stdev=210.72, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=66.67%, 2000=33.33% cpu : usr=0.00%, sys=3.21%, ctx=54, 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=145392: Sat Aug 22 04:27:11 2026 write: IOPS=1, BW=4354KiB/s (4459kB/s)(12.0MiB/2822msec); 0 zone resets clat (msec): min=398, max=1578, avg=882.02, stdev=618.04 lat (msec): min=399, max=1578, avg=882.33, stdev=618.06 clat percentiles (msec): | 1.00th=[ 401], 5.00th=[ 401], 10.00th=[ 401], 20.00th=[ 401], | 30.00th=[ 401], 40.00th=[ 667], 50.00th=[ 667], 60.00th=[ 667], | 70.00th=[ 1586], 80.00th=[ 1586], 90.00th=[ 1586], 95.00th=[ 1586], | 99.00th=[ 1586], 99.50th=[ 1586], 99.90th=[ 1586], 99.95th=[ 1586], | 99.99th=[ 1586] bw ( KiB/s): min= 8000, max= 8192, per=90.68%, avg=8096.00, stdev=135.76, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 500=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.00%, sys=3.97%, ctx=47, 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=4464KiB/s (4571kB/s), 1116KiB/s-3798KiB/s (1143kB/s-3890kB/s), io=16.0MiB (16.8MB), run=3235-3670msec WRITE: bw=8929KiB/s (9143kB/s), 2232KiB/s-4528KiB/s (2286kB/s-4636kB/s), io=32.0MiB (33.6MB), run=2714-3670msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145393: Sat Aug 22 04:27:12 2026 read: IOPS=0, BW=3682KiB/s (3771kB/s)(12.0MiB/3337msec) clat (msec): min=520, max=1387, avg=1051.24, stdev=465.11 lat (msec): min=520, max=1387, avg=1051.24, stdev=465.11 clat percentiles (msec): | 1.00th=[ 523], 5.00th=[ 523], 10.00th=[ 523], 20.00th=[ 523], | 30.00th=[ 523], 40.00th=[ 1250], 50.00th=[ 1250], 60.00th=[ 1250], | 70.00th=[ 1385], 80.00th=[ 1385], 90.00th=[ 1385], 95.00th=[ 1385], | 99.00th=[ 1385], 99.50th=[ 1385], 99.90th=[ 1385], 99.95th=[ 1385], | 99.99th=[ 1385] bw ( KiB/s): min= 8047, max= 8159, per=100.00%, avg=8103.00, stdev=79.20, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 2000=66.67% cpu : usr=0.00%, sys=3.36%, ctx=66, 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=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=145394: Sat Aug 22 04:27:12 2026 read: IOPS=0, BW=1031KiB/s (1056kB/s)(4096KiB/3971msec) clat (nsec): min=1088.1M, max=1088.1M, avg=1088072225.00, stdev= 0.00 lat (nsec): min=1088.1M, max=1088.1M, avg=1088074565.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1083], 5.00th=[ 1083], 10.00th=[ 1083], 20.00th=[ 1083], | 30.00th=[ 1083], 40.00th=[ 1083], 50.00th=[ 1083], 60.00th=[ 1083], | 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= 8000, max= 8000, per=100.00%, avg=8000.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2063KiB/s (2112kB/s)(8192KiB/3971msec); 0 zone resets clat (msec): min=774, max=2007, avg=1390.86, stdev=871.36 lat (msec): min=774, max=2007, avg=1391.04, stdev=871.34 clat percentiles (msec): | 1.00th=[ 776], 5.00th=[ 776], 10.00th=[ 776], 20.00th=[ 776], | 30.00th=[ 776], 40.00th=[ 776], 50.00th=[ 776], 60.00th=[ 2005], | 70.00th=[ 2005], 80.00th=[ 2005], 90.00th=[ 2005], 95.00th=[ 2005], | 99.00th=[ 2005], 99.50th=[ 2005], 99.90th=[ 2005], 99.95th=[ 2005], | 99.99th=[ 2005] bw ( KiB/s): min= 7922, max= 7922, per=100.00%, avg=7922.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 1000=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=2.22%, ctx=46, 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=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=145395: Sat Aug 22 04:27:12 2026 write: IOPS=0, BW=2771KiB/s (2838kB/s)(12.0MiB/4434msec); 0 zone resets clat (msec): min=345, max=2420, avg=1417.98, stdev=1039.61 lat (msec): min=345, max=2421, avg=1418.74, stdev=1039.63 clat percentiles (msec): | 1.00th=[ 347], 5.00th=[ 347], 10.00th=[ 347], 20.00th=[ 347], | 30.00th=[ 347], 40.00th=[ 1485], 50.00th=[ 1485], 60.00th=[ 1485], | 70.00th=[ 2433], 80.00th=[ 2433], 90.00th=[ 2433], 95.00th=[ 2433], | 99.00th=[ 2433], 99.50th=[ 2433], 99.90th=[ 2433], 99.95th=[ 2433], | 99.99th=[ 2433] bw ( KiB/s): min= 8062, max= 8192, per=100.00%, avg=8127.00, stdev=91.92, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 500=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=3.79%, ctx=60, 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 rand-rw: (groupid=0, jobs=1): err= 0: pid=145396: Sat Aug 22 04:27:12 2026 write: IOPS=0, BW=3659KiB/s (3747kB/s)(12.0MiB/3358msec); 0 zone resets clat (msec): min=571, max=1665, avg=1066.71, stdev=554.37 lat (msec): min=573, max=1665, avg=1067.54, stdev=553.70 clat percentiles (msec): | 1.00th=[ 575], 5.00th=[ 575], 10.00th=[ 575], 20.00th=[ 575], | 30.00th=[ 575], 40.00th=[ 961], 50.00th=[ 961], 60.00th=[ 961], | 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= 8000, max= 8062, per=100.00%, avg=8031.00, stdev=43.84, 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=3.84%, ctx=45, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=4126KiB/s (4225kB/s), 1031KiB/s-3682KiB/s (1056kB/s-3771kB/s), io=16.0MiB (16.8MB), run=3337-3971msec WRITE: bw=7390KiB/s (7568kB/s), 2063KiB/s-3659KiB/s (2112kB/s-3747kB/s), io=32.0MiB (33.6MB), run=3358-4434msec