== sanity test 398b: DIO and buffer IO race ============== 11:15:38 (1781277338) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 5.11825 s, 9.8 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=144724: Fri Jun 12 11:17:57 2026 read: IOPS=12, BW=49.3KiB/s (50.4kB/s)(5992KiB/121662msec) clat (usec): min=31, max=882089, avg=41168.85, stdev=37924.83 lat (usec): min=31, max=882091, avg=41170.75, stdev=37924.75 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 65], 10.00th=[ 13042], 20.00th=[ 20317], | 30.00th=[ 25297], 40.00th=[ 30016], 50.00th=[ 35390], 60.00th=[ 40633], | 70.00th=[ 48497], 80.00th=[ 57934], 90.00th=[ 76022], 95.00th=[ 92799], | 99.00th=[139461], 99.50th=[166724], 99.90th=[541066], 99.95th=[884999], | 99.99th=[884999] bw ( KiB/s): min= 6, max= 103, per=25.08%, avg=49.15, stdev=18.91, samples=238 iops : min= 1, max= 25, avg=11.66, stdev= 4.76, samples=238 write: IOPS=12, BW=51.7KiB/s (52.0kB/s)(6296KiB/121662msec); 0 zone resets clat (usec): min=904, max=240721, avg=37760.28, stdev=36462.63 lat (usec): min=906, max=240724, avg=37763.11, stdev=36465.51 clat percentiles (usec): | 1.00th=[ 1221], 5.00th=[ 1369], 10.00th=[ 1860], 20.00th=[ 4490], | 30.00th=[ 8979], 40.00th=[ 19530], 50.00th=[ 29230], 60.00th=[ 39060], | 70.00th=[ 51119], 80.00th=[ 66323], 90.00th=[ 86508], 95.00th=[105382], | 99.00th=[156238], 99.50th=[187696], 99.90th=[231736], 99.95th=[240124], | 99.99th=[240124] bw ( KiB/s): min= 7, max= 111, per=25.33%, avg=51.94, stdev=19.42, samples=237 iops : min= 1, max= 27, avg=12.35, stdev= 4.86, samples=237 lat (usec) : 50=0.26%, 100=3.03%, 250=0.46%, 500=0.10%, 750=0.03% lat (usec) : 1000=0.13% lat (msec) : 2=5.44%, 4=3.91%, 10=7.16%, 20=9.83%, 50=39.94% lat (msec) : 100=24.90%, 250=4.69%, 500=0.07%, 750=0.03%, 1000=0.03% cpu : usr=0.08%, sys=5.47%, ctx=6768, 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=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=144726: Fri Jun 12 11:17:57 2026 read: IOPS=12, BW=49.1KiB/s (50.2kB/s)(5940KiB/121080msec) clat (usec): min=36, max=545349, avg=40538.50, stdev=32923.12 lat (usec): min=37, max=545351, avg=40540.94, stdev=32922.23 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 67], 10.00th=[ 13698], 20.00th=[ 20055], | 30.00th=[ 24773], 40.00th=[ 29230], 50.00th=[ 34341], 60.00th=[ 41681], | 70.00th=[ 49021], 80.00th=[ 58459], 90.00th=[ 72877], 95.00th=[ 88605], | 99.00th=[130548], 99.50th=[164627], 99.90th=[522191], 99.95th=[549454], | 99.99th=[549454] bw ( KiB/s): min= 6, max= 96, per=24.91%, avg=48.83, stdev=18.47, samples=238 iops : min= 1, max= 24, avg=11.57, stdev= 4.66, samples=238 write: IOPS=13, BW=52.4KiB/s (53.7kB/s)(6348KiB/121080msec); 0 zone resets clat (usec): min=1067, max=758532, avg=38041.61, stdev=42366.54 lat (usec): min=1068, max=758533, avg=38044.82, stdev=42366.04 clat percentiles (usec): | 1.00th=[ 1205], 5.00th=[ 1385], 10.00th=[ 1860], 20.00th=[ 4424], | 30.00th=[ 8979], 40.00th=[ 17433], 50.00th=[ 27395], 60.00th=[ 36963], | 70.00th=[ 50070], 80.00th=[ 64750], 90.00th=[ 88605], 95.00th=[111674], | 99.00th=[164627], 99.50th=[225444], 99.90th=[283116], 99.95th=[759170], | 99.99th=[759170] bw ( KiB/s): min= 6, max= 119, per=25.67%, avg=52.63, stdev=21.69, samples=236 iops : min= 1, max= 29, avg=12.53, stdev= 5.48, samples=236 lat (usec) : 50=0.36%, 100=2.93%, 250=0.52%, 1000=0.03% lat (msec) : 2=5.47%, 4=3.84%, 10=7.10%, 20=11.33%, 50=39.03% lat (msec) : 100=24.09%, 250=5.05%, 500=0.16%, 750=0.07%, 1000=0.03% cpu : usr=0.09%, sys=5.53%, ctx=6825, majf=0, minf=18 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144728: Fri Jun 12 11:17:57 2026 read: IOPS=12, BW=49.5KiB/s (50.7kB/s)(6028KiB/121809msec) clat (usec): min=20, max=337126, avg=41004.60, stdev=31795.77 lat (usec): min=20, max=337127, avg=41006.78, stdev=31795.63 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 64], 10.00th=[ 12649], 20.00th=[ 20317], | 30.00th=[ 25035], 40.00th=[ 30278], 50.00th=[ 34866], 60.00th=[ 41681], | 70.00th=[ 49021], 80.00th=[ 57934], 90.00th=[ 72877], 95.00th=[ 87557], | 99.00th=[160433], 99.50th=[221250], 99.90th=[316670], 99.95th=[337642], | 99.99th=[337642] bw ( KiB/s): min= 7, max= 110, per=25.05%, avg=49.10, stdev=19.74, samples=239 iops : min= 1, max= 27, avg=11.64, stdev= 4.99, samples=239 write: IOPS=12, BW=51.4KiB/s (52.6kB/s)(6260KiB/121809msec); 0 zone resets clat (usec): min=1104, max=874726, avg=38009.69, stdev=43949.33 lat (usec): min=1106, max=874729, avg=38013.91, stdev=43949.05 clat percentiles (usec): | 1.00th=[ 1237], 5.00th=[ 1418], 10.00th=[ 2147], 20.00th=[ 4621], | 30.00th=[ 9110], 40.00th=[ 18482], 50.00th=[ 28181], 60.00th=[ 38011], | 70.00th=[ 49021], 80.00th=[ 63177], 90.00th=[ 83362], 95.00th=[108528], | 99.00th=[164627], 99.50th=[200279], 99.90th=[383779], 99.95th=[876610], | 99.99th=[876610] bw ( KiB/s): min= 7, max= 126, per=25.02%, avg=51.28, stdev=21.57, samples=237 iops : min= 1, max= 31, avg=12.19, stdev= 5.42, samples=237 lat (usec) : 50=0.36%, 100=3.12%, 250=0.33%, 500=0.20%, 750=0.10% lat (msec) : 2=4.65%, 4=4.23%, 10=7.62%, 20=9.93%, 50=40.04% lat (msec) : 100=24.77%, 250=4.33%, 500=0.29%, 1000=0.03% cpu : usr=0.08%, sys=5.48%, ctx=6847, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144730: Fri Jun 12 11:17:57 2026 read: IOPS=12, BW=49.5KiB/s (50.7kB/s)(6052KiB/122350msec) clat (usec): min=34, max=287140, avg=40278.03, stdev=28820.89 lat (usec): min=34, max=287141, avg=40279.40, stdev=28820.89 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 68], 10.00th=[ 13173], 20.00th=[ 19792], | 30.00th=[ 25297], 40.00th=[ 29754], 50.00th=[ 35390], 60.00th=[ 40633], | 70.00th=[ 48497], 80.00th=[ 58459], 90.00th=[ 72877], 95.00th=[ 89654], | 99.00th=[129500], 99.50th=[173016], 99.90th=[248513], 99.95th=[287310], | 99.99th=[287310] bw ( KiB/s): min= 7, max= 103, per=25.20%, avg=49.39, stdev=18.89, samples=237 iops : min= 1, max= 25, avg=11.71, stdev= 4.74, samples=237 write: IOPS=12, BW=50.0KiB/s (52.2kB/s)(6236KiB/122350msec); 0 zone resets clat (usec): min=789, max=818792, avg=39018.99, stdev=44519.82 lat (usec): min=790, max=818796, avg=39023.81, stdev=44518.98 clat percentiles (usec): | 1.00th=[ 1205], 5.00th=[ 1401], 10.00th=[ 1811], 20.00th=[ 4621], | 30.00th=[ 9241], 40.00th=[ 18220], 50.00th=[ 28705], 60.00th=[ 38536], | 70.00th=[ 52167], 80.00th=[ 65274], 90.00th=[ 87557], 95.00th=[113771], | 99.00th=[179307], 99.50th=[227541], 99.90th=[392168], 99.95th=[817890], | 99.99th=[817890] bw ( KiB/s): min= 7, max= 110, per=24.69%, avg=50.62, stdev=20.74, samples=239 iops : min= 1, max= 27, avg=12.03, stdev= 5.25, samples=239 lat (usec) : 50=0.39%, 100=3.19%, 250=0.20%, 500=0.10%, 1000=0.10% lat (msec) : 2=5.34%, 4=3.94%, 10=6.71%, 20=11.72%, 50=38.35% lat (msec) : 100=24.61%, 250=5.21%, 500=0.13%, 1000=0.03% cpu : usr=0.08%, sys=5.48%, ctx=6692, 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=196KiB/s (201kB/s), 49.1KiB/s-49.5KiB/s (50.2kB/s-50.7kB/s), io=23.4MiB (24.6MB), run=121080-122350msec WRITE: bw=205KiB/s (210kB/s), 50.0KiB/s-52.4KiB/s (52.2kB/s-53.7kB/s), io=24.6MiB (25.7MB), run=121080-122350msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144725: Fri Jun 12 11:20:15 2026 read: IOPS=5, BW=23.0KiB/s (23.6kB/s)(5992KiB/259979msec) clat (msec): min=5, max=898, avg=34.04, stdev=38.49 lat (msec): min=5, max=898, avg=34.05, stdev=38.49 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 24], 60.00th=[ 28], | 70.00th=[ 34], 80.00th=[ 46], 90.00th=[ 72], 95.00th=[ 94], | 99.00th=[ 155], 99.50th=[ 201], 99.90th=[ 342], 99.95th=[ 902], | 99.99th=[ 902] bw ( KiB/s): min= 7, max= 104, per=27.66%, avg=25.45, stdev=17.08, samples=455 iops : min= 1, max= 26, avg= 5.71, stdev= 4.32, samples=455 write: IOPS=6, BW=24.2KiB/s (24.8kB/s)(6296KiB/259979msec); 0 zone resets clat (msec): min=31, max=641, avg=132.45, stdev=61.37 lat (msec): min=31, max=641, avg=132.46, stdev=61.37 clat percentiles (msec): | 1.00th=[ 43], 5.00th=[ 57], 10.00th=[ 68], 20.00th=[ 81], | 30.00th=[ 94], 40.00th=[ 108], 50.00th=[ 123], 60.00th=[ 138], | 70.00th=[ 155], 80.00th=[ 178], 90.00th=[ 209], 95.00th=[ 243], | 99.00th=[ 334], 99.50th=[ 372], 99.90th=[ 485], 99.95th=[ 642], | 99.99th=[ 642] bw ( KiB/s): min= 7, max= 56, per=24.78%, avg=23.79, stdev=10.64, samples=510 iops : min= 1, max= 14, avg= 5.30, stdev= 2.72, samples=510 lat (msec) : 10=3.52%, 20=16.80%, 50=20.90%, 100=23.31%, 250=33.17% lat (msec) : 500=2.25%, 750=0.03%, 1000=0.03% cpu : usr=0.04%, sys=1.43%, ctx=5205, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144727: Fri Jun 12 11:20:15 2026 read: IOPS=5, BW=22.0KiB/s (23.5kB/s)(5940KiB/258663msec) clat (msec): min=5, max=787, avg=34.34, stdev=39.09 lat (msec): min=5, max=787, avg=34.35, stdev=39.09 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 24], 60.00th=[ 28], | 70.00th=[ 34], 80.00th=[ 46], 90.00th=[ 72], 95.00th=[ 95], | 99.00th=[ 178], 99.50th=[ 249], 99.90th=[ 380], 99.95th=[ 785], | 99.99th=[ 785] bw ( KiB/s): min= 7, max= 95, per=28.12%, avg=25.87, stdev=17.10, samples=443 iops : min= 1, max= 23, avg= 5.82, stdev= 4.33, samples=443 write: IOPS=6, BW=24.5KiB/s (25.1kB/s)(6348KiB/258663msec); 0 zone resets clat (msec): min=27, max=681, avg=130.55, stdev=61.09 lat (msec): min=27, max=681, avg=130.55, stdev=61.09 clat percentiles (msec): | 1.00th=[ 45], 5.00th=[ 58], 10.00th=[ 67], 20.00th=[ 81], | 30.00th=[ 93], 40.00th=[ 106], 50.00th=[ 118], 60.00th=[ 134], | 70.00th=[ 153], 80.00th=[ 174], 90.00th=[ 207], 95.00th=[ 241], | 99.00th=[ 317], 99.50th=[ 384], 99.90th=[ 542], 99.95th=[ 684], | 99.99th=[ 684] bw ( KiB/s): min= 7, max= 55, per=25.17%, avg=24.16, stdev=10.54, samples=506 iops : min= 1, max= 13, avg= 5.39, stdev= 2.68, samples=506 lat (msec) : 10=3.97%, 20=15.95%, 50=21.03%, 100=23.80%, 250=33.11% lat (msec) : 500=2.05%, 750=0.07%, 1000=0.03% cpu : usr=0.05%, sys=1.40%, ctx=5166, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144729: Fri Jun 12 11:20:15 2026 read: IOPS=5, BW=23.2KiB/s (23.7kB/s)(6028KiB/259945msec) clat (msec): min=5, max=386, avg=34.15, stdev=35.30 lat (msec): min=5, max=386, avg=34.15, stdev=35.31 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 23], 60.00th=[ 28], | 70.00th=[ 34], 80.00th=[ 47], 90.00th=[ 69], 95.00th=[ 97], | 99.00th=[ 186], 99.50th=[ 239], 99.90th=[ 376], 99.95th=[ 388], | 99.99th=[ 388] bw ( KiB/s): min= 7, max= 119, per=27.41%, avg=25.21, stdev=17.17, samples=460 iops : min= 1, max= 29, avg= 5.66, stdev= 4.34, samples=460 write: IOPS=6, BW=24.1KiB/s (24.7kB/s)(6260KiB/259945msec); 0 zone resets clat (msec): min=28, max=977, avg=132.89, stdev=63.62 lat (msec): min=28, max=977, avg=132.90, stdev=63.62 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 60], 10.00th=[ 70], 20.00th=[ 83], | 30.00th=[ 94], 40.00th=[ 107], 50.00th=[ 122], 60.00th=[ 136], | 70.00th=[ 155], 80.00th=[ 174], 90.00th=[ 213], 95.00th=[ 247], | 99.00th=[ 321], 99.50th=[ 372], 99.90th=[ 477], 99.95th=[ 978], | 99.99th=[ 978] bw ( KiB/s): min= 7, max= 56, per=24.86%, avg=23.87, stdev=10.47, samples=504 iops : min= 1, max= 14, avg= 5.32, stdev= 2.67, samples=504 lat (msec) : 10=3.48%, 20=17.12%, 50=20.87%, 100=23.34%, 250=32.52% lat (msec) : 500=2.64%, 1000=0.03% cpu : usr=0.05%, sys=1.35%, ctx=5102, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144731: Fri Jun 12 11:20:15 2026 read: IOPS=5, BW=23.5KiB/s (24.1kB/s)(6052KiB/257543msec) clat (msec): min=4, max=343, avg=33.31, stdev=32.81 lat (msec): min=4, max=343, avg=33.31, stdev=32.81 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 23], 60.00th=[ 28], | 70.00th=[ 34], 80.00th=[ 45], 90.00th=[ 68], 95.00th=[ 90], | 99.00th=[ 163], 99.50th=[ 230], 99.90th=[ 326], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 7, max= 96, per=28.36%, avg=26.09, stdev=17.71, samples=448 iops : min= 1, max= 24, avg= 5.87, stdev= 4.48, samples=448 write: IOPS=6, BW=24.2KiB/s (24.8kB/s)(6236KiB/257543msec); 0 zone resets clat (msec): min=30, max=891, avg=132.59, stdev=65.18 lat (msec): min=30, max=891, avg=132.59, stdev=65.18 clat percentiles (msec): | 1.00th=[ 44], 5.00th=[ 58], 10.00th=[ 68], 20.00th=[ 82], | 30.00th=[ 95], 40.00th=[ 108], 50.00th=[ 122], 60.00th=[ 136], | 70.00th=[ 153], 80.00th=[ 174], 90.00th=[ 209], 95.00th=[ 241], | 99.00th=[ 355], 99.50th=[ 384], 99.90th=[ 634], 99.95th=[ 894], | 99.99th=[ 894] bw ( KiB/s): min= 7, max= 56, per=24.68%, avg=23.69, stdev=10.59, samples=506 iops : min= 1, max= 14, avg= 5.27, stdev= 2.70, samples=506 lat (msec) : 10=2.90%, 20=17.90%, 50=20.87%, 100=23.14%, 250=32.75% lat (msec) : 500=2.28%, 750=0.13%, 1000=0.03% cpu : usr=0.06%, sys=1.46%, ctx=5245, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=92.4KiB/s (94.6kB/s), 22.0KiB/s-23.5KiB/s (23.5kB/s-24.1kB/s), io=23.4MiB (24.6MB), run=257543-259979msec WRITE: bw=96.7KiB/s (99.0kB/s), 24.1KiB/s-24.5KiB/s (24.7kB/s-25.1kB/s), io=24.6MiB (25.7MB), run=257543-259979msec 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=144794: Fri Jun 12 11:21:01 2026 read: IOPS=10, BW=165KiB/s (169kB/s)(5920KiB/35810msec) clat (usec): min=37, max=312292, avg=48119.52, stdev=44272.23 lat (usec): min=37, max=312292, avg=48136.92, stdev=44287.37 clat percentiles (usec): | 1.00th=[ 41], 5.00th=[ 58], 10.00th=[ 66], 20.00th=[ 227], | 30.00th=[ 27395], 40.00th=[ 34341], 50.00th=[ 43254], 60.00th=[ 50070], | 70.00th=[ 57934], 80.00th=[ 69731], 90.00th=[ 95945], 95.00th=[124257], | 99.00th=[270533], 99.50th=[299893], 99.90th=[312476], 99.95th=[312476], | 99.99th=[312476] bw ( KiB/s): min= 31, max= 416, per=24.78%, avg=165.53, stdev=86.36, samples=70 iops : min= 1, max= 26, avg= 9.59, stdev= 5.46, samples=70 write: IOPS=11, BW=178KiB/s (182kB/s)(6368KiB/35810msec); 0 zone resets clat (usec): min=1505, max=246280, avg=43892.34, stdev=44038.40 lat (usec): min=1506, max=246282, avg=43897.50, stdev=44037.66 clat percentiles (usec): | 1.00th=[ 1663], 5.00th=[ 1942], 10.00th=[ 2868], 20.00th=[ 5407], | 30.00th=[ 10028], 40.00th=[ 19268], 50.00th=[ 30278], 60.00th=[ 43779], | 70.00th=[ 59507], 80.00th=[ 78119], 90.00th=[107480], 95.00th=[131597], | 99.00th=[189793], 99.50th=[225444], 99.90th=[246416], 99.95th=[246416], | 99.99th=[246416] bw ( KiB/s): min= 21, max= 512, per=25.77%, avg=181.19, stdev=84.00, samples=69 iops : min= 1, max= 32, avg=10.58, stdev= 5.31, samples=69 lat (usec) : 50=0.91%, 100=8.46%, 250=0.26%, 500=0.13% lat (msec) : 2=2.86%, 4=5.34%, 10=7.68%, 20=6.77%, 50=29.69% lat (msec) : 100=27.60%, 250=9.77%, 500=0.52% cpu : usr=0.09%, sys=4.74%, ctx=1501, 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=144796: Fri Jun 12 11:21:01 2026 read: IOPS=10, BW=171KiB/s (175kB/s)(5744KiB/33595msec) clat (usec): min=39, max=209758, avg=48581.34, stdev=37691.80 lat (usec): min=40, max=209759, avg=48582.63, stdev=37691.78 clat percentiles (usec): | 1.00th=[ 41], 5.00th=[ 56], 10.00th=[ 67], 20.00th=[ 1614], | 30.00th=[ 30540], 40.00th=[ 37487], 50.00th=[ 44827], 60.00th=[ 53216], | 70.00th=[ 60031], 80.00th=[ 76022], 90.00th=[100140], 95.00th=[117965], | 99.00th=[168821], 99.50th=[183501], 99.90th=[210764], 99.95th=[210764], | 99.99th=[210764] bw ( KiB/s): min= 31, max= 318, per=25.59%, avg=170.92, stdev=65.09, samples=65 iops : min= 1, max= 19, avg= 9.94, stdev= 4.15, samples=65 write: IOPS=12, BW=195KiB/s (199kB/s)(6544KiB/33595msec); 0 zone resets clat (usec): min=1582, max=316918, avg=39126.87, stdev=42950.86 lat (usec): min=1584, max=316920, avg=39130.26, stdev=42950.08 clat percentiles (usec): | 1.00th=[ 1762], 5.00th=[ 2008], 10.00th=[ 2999], 20.00th=[ 6128], | 30.00th=[ 8979], 40.00th=[ 13960], 50.00th=[ 24249], 60.00th=[ 34866], | 70.00th=[ 49546], 80.00th=[ 70779], 90.00th=[ 98042], 95.00th=[123208], | 99.00th=[166724], 99.50th=[189793], 99.90th=[316670], 99.95th=[316670], | 99.99th=[316670] bw ( KiB/s): min= 31, max= 444, per=27.78%, avg=195.26, stdev=87.44, samples=65 iops : min= 1, max= 27, avg=11.48, stdev= 5.54, samples=65 lat (usec) : 50=0.91%, 100=7.55%, 250=0.39%, 500=0.13%, 1000=0.13% lat (msec) : 2=2.73%, 4=4.82%, 10=10.55%, 20=7.29%, 50=29.30% lat (msec) : 100=26.30%, 250=9.64%, 500=0.26% cpu : usr=0.05%, sys=5.06%, ctx=1433, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144798: Fri Jun 12 11:21:01 2026 read: IOPS=11, BW=183KiB/s (187kB/s)(6256KiB/34239msec) clat (usec): min=36, max=346973, avg=45509.55, stdev=41370.24 lat (usec): min=36, max=346973, avg=45519.88, stdev=41370.98 clat percentiles (usec): | 1.00th=[ 40], 5.00th=[ 51], 10.00th=[ 60], 20.00th=[ 77], | 30.00th=[ 24511], 40.00th=[ 33817], 50.00th=[ 41681], 60.00th=[ 50070], | 70.00th=[ 58983], 80.00th=[ 71828], 90.00th=[ 95945], 95.00th=[114820], | 99.00th=[185598], 99.50th=[196084], 99.90th=[346031], 99.95th=[346031], | 99.99th=[346031] bw ( KiB/s): min= 63, max= 382, per=27.91%, avg=186.45, stdev=75.53, samples=66 iops : min= 3, max= 23, avg=10.91, stdev= 4.83, samples=66 write: IOPS=11, BW=176KiB/s (180kB/s)(6032KiB/34239msec); 0 zone resets clat (usec): min=1561, max=273242, avg=42344.49, stdev=42633.62 lat (usec): min=1562, max=273244, avg=42346.77, stdev=42633.57 clat percentiles (usec): | 1.00th=[ 1713], 5.00th=[ 1975], 10.00th=[ 2900], 20.00th=[ 5997], | 30.00th=[ 9634], 40.00th=[ 16450], 50.00th=[ 26346], 60.00th=[ 40633], | 70.00th=[ 55837], 80.00th=[ 79168], 90.00th=[104334], 95.00th=[121111], | 99.00th=[166724], 99.50th=[191890], 99.90th=[274727], 99.95th=[274727], | 99.99th=[274727] bw ( KiB/s): min= 31, max= 381, per=25.02%, avg=175.88, stdev=75.34, samples=67 iops : min= 1, max= 23, avg=10.24, stdev= 4.73, samples=67 lat (usec) : 50=2.47%, 100=9.38%, 250=0.39%, 500=0.13%, 750=0.39% lat (usec) : 1000=0.26% lat (msec) : 2=2.60%, 4=4.56%, 10=8.07%, 20=7.03%, 50=27.73% lat (msec) : 100=26.56%, 250=10.16%, 500=0.26% cpu : usr=0.07%, sys=4.98%, ctx=1460, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144799: Fri Jun 12 11:21:01 2026 read: IOPS=10, BW=173KiB/s (178kB/s)(6032KiB/34773msec) clat (usec): min=31, max=293429, avg=47856.41, stdev=42985.70 lat (usec): min=31, max=293431, avg=47857.73, stdev=42985.71 clat percentiles (usec): | 1.00th=[ 48], 5.00th=[ 57], 10.00th=[ 64], 20.00th=[ 99], | 30.00th=[ 26608], 40.00th=[ 34341], 50.00th=[ 43254], 60.00th=[ 54789], | 70.00th=[ 62129], 80.00th=[ 74974], 90.00th=[ 95945], 95.00th=[124257], | 99.00th=[233833], 99.50th=[246416], 99.90th=[291505], 99.95th=[291505], | 99.99th=[291505] bw ( KiB/s): min= 30, max= 413, per=26.88%, avg=179.56, stdev=77.12, samples=66 iops : min= 1, max= 25, avg=10.45, stdev= 4.84, samples=66 write: IOPS=11, BW=180KiB/s (184kB/s)(6256KiB/34773msec); 0 zone resets clat (usec): min=1215, max=293766, avg=41643.48, stdev=46179.29 lat (usec): min=1216, max=293767, avg=41655.69, stdev=46184.18 clat percentiles (usec): | 1.00th=[ 1532], 5.00th=[ 1991], 10.00th=[ 3163], 20.00th=[ 5407], | 30.00th=[ 8225], 40.00th=[ 13960], 50.00th=[ 27395], 60.00th=[ 38011], | 70.00th=[ 54264], 80.00th=[ 73925], 90.00th=[ 95945], 95.00th=[126354], | 99.00th=[238027], 99.50th=[278922], 99.90th=[295699], 99.95th=[295699], | 99.99th=[295699] bw ( KiB/s): min= 31, max= 382, per=25.75%, avg=181.03, stdev=83.99, samples=68 iops : min= 1, max= 23, avg=10.54, stdev= 5.27, samples=68 lat (usec) : 50=0.91%, 100=9.11%, 250=0.52%, 500=0.39%, 750=0.13% lat (msec) : 2=2.73%, 4=4.30%, 10=11.07%, 20=6.51%, 50=26.69% lat (msec) : 100=28.91%, 250=8.20%, 500=0.52% cpu : usr=0.05%, sys=4.75%, ctx=1462, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=669KiB/s (685kB/s), 165KiB/s-183KiB/s (169kB/s-187kB/s), io=23.4MiB (24.5MB), run=33595-35810msec WRITE: bw=704KiB/s (721kB/s), 176KiB/s-195KiB/s (180kB/s-199kB/s), io=24.6MiB (25.8MB), run=33595-35810msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144792: Fri Jun 12 11:21:36 2026 read: IOPS=5, BW=83.5KiB/s (85.5kB/s)(5920KiB/70902msec) clat (msec): min=6, max=405, avg=41.53, stdev=50.27 lat (msec): min=6, max=405, avg=41.54, stdev=50.27 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 23], 60.00th=[ 28], | 70.00th=[ 39], 80.00th=[ 53], 90.00th=[ 92], 95.00th=[ 138], | 99.00th=[ 257], 99.50th=[ 292], 99.90th=[ 405], 99.95th=[ 405], | 99.99th=[ 405] bw ( KiB/s): min= 31, max= 286, per=28.94%, avg=97.53, stdev=61.86, samples=118 iops : min= 1, max= 17, avg= 5.32, stdev= 3.92, samples=118 write: IOPS=5, BW=89.8KiB/s (91.0kB/s)(6368KiB/70902msec); 0 zone resets clat (msec): min=39, max=658, avg=138.55, stdev=83.56 lat (msec): min=39, max=658, avg=138.56, stdev=83.55 clat percentiles (msec): | 1.00th=[ 44], 5.00th=[ 58], 10.00th=[ 65], 20.00th=[ 77], | 30.00th=[ 88], 40.00th=[ 97], 50.00th=[ 112], 60.00th=[ 129], | 70.00th=[ 159], 80.00th=[ 192], 90.00th=[ 257], 95.00th=[ 309], | 99.00th=[ 414], 99.50th=[ 481], 99.90th=[ 659], 99.95th=[ 659], | 99.99th=[ 659] bw ( KiB/s): min= 21, max= 222, per=26.16%, avg=92.88, stdev=51.61, samples=134 iops : min= 1, max= 13, avg= 5.00, stdev= 3.30, samples=134 lat (msec) : 10=1.69%, 20=18.62%, 50=18.75%, 100=26.95%, 250=27.47% lat (msec) : 500=6.38%, 750=0.13% cpu : usr=0.04%, sys=1.36%, ctx=1342, 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=144793: Fri Jun 12 11:21:36 2026 read: IOPS=5, BW=80.9KiB/s (82.9kB/s)(5744KiB/70981msec) clat (msec): min=6, max=343, avg=40.51, stdev=42.04 lat (msec): min=6, max=343, avg=40.51, stdev=42.03 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 22], 50.00th=[ 27], 60.00th=[ 31], | 70.00th=[ 40], 80.00th=[ 55], 90.00th=[ 91], 95.00th=[ 131], | 99.00th=[ 218], 99.50th=[ 243], 99.90th=[ 342], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 21, max= 350, per=29.27%, avg=98.63, stdev=69.23, samples=115 iops : min= 1, max= 21, avg= 5.38, stdev= 4.36, samples=115 write: IOPS=5, BW=92.2KiB/s (94.4kB/s)(6544KiB/70981msec); 0 zone resets clat (msec): min=30, max=549, avg=137.23, stdev=87.10 lat (msec): min=30, max=549, avg=137.23, stdev=87.10 clat percentiles (msec): | 1.00th=[ 46], 5.00th=[ 56], 10.00th=[ 64], 20.00th=[ 74], | 30.00th=[ 84], 40.00th=[ 96], 50.00th=[ 106], 60.00th=[ 124], | 70.00th=[ 146], 80.00th=[ 186], 90.00th=[ 268], 95.00th=[ 330], | 99.00th=[ 443], 99.50th=[ 477], 99.90th=[ 550], 99.95th=[ 550], | 99.99th=[ 550] bw ( KiB/s): min= 30, max= 222, per=27.48%, avg=97.55, stdev=50.13, samples=132 iops : min= 1, max= 13, avg= 5.30, stdev= 3.19, samples=132 lat (msec) : 10=2.34%, 20=14.06%, 50=20.83%, 100=29.69%, 250=26.69% lat (msec) : 500=6.25%, 750=0.13% cpu : usr=0.03%, sys=1.45%, ctx=1416, 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=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=144795: Fri Jun 12 11:21:36 2026 read: IOPS=5, BW=92.1KiB/s (94.3kB/s)(6256KiB/67944msec) clat (msec): min=6, max=403, avg=39.34, stdev=43.78 lat (msec): min=6, max=403, avg=39.34, stdev=43.78 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 21], 50.00th=[ 25], 60.00th=[ 29], | 70.00th=[ 36], 80.00th=[ 51], 90.00th=[ 82], 95.00th=[ 126], | 99.00th=[ 243], 99.50th=[ 279], 99.90th=[ 405], 99.95th=[ 405], | 99.99th=[ 405] bw ( KiB/s): min= 29, max= 352, per=30.79%, avg=103.77, stdev=74.45, samples=119 iops : min= 1, max= 22, avg= 5.71, stdev= 4.69, samples=119 write: IOPS=5, BW=88.8KiB/s (90.9kB/s)(6032KiB/67944msec); 0 zone resets clat (msec): min=40, max=548, avg=139.18, stdev=81.36 lat (msec): min=40, max=548, avg=139.18, stdev=81.36 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 59], 10.00th=[ 67], 20.00th=[ 78], | 30.00th=[ 90], 40.00th=[ 101], 50.00th=[ 116], 60.00th=[ 130], | 70.00th=[ 153], 80.00th=[ 194], 90.00th=[ 243], 95.00th=[ 321], | 99.00th=[ 435], 99.50th=[ 481], 99.90th=[ 550], 99.95th=[ 550], | 99.99th=[ 550] bw ( KiB/s): min= 29, max= 223, per=25.67%, avg=91.12, stdev=48.07, samples=130 iops : min= 1, max= 13, avg= 4.90, stdev= 3.08, samples=130 lat (msec) : 10=2.47%, 20=15.49%, 50=23.31%, 100=24.74%, 250=29.04% lat (msec) : 500=4.82%, 750=0.13% cpu : usr=0.03%, sys=1.37%, ctx=1340, 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=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=144797: Fri Jun 12 11:21:36 2026 read: IOPS=5, BW=86.9KiB/s (88.0kB/s)(6032KiB/69440msec) clat (msec): min=6, max=347, avg=41.17, stdev=51.03 lat (msec): min=6, max=347, avg=41.17, stdev=51.03 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=[ 29], | 70.00th=[ 36], 80.00th=[ 49], 90.00th=[ 94], 95.00th=[ 136], | 99.00th=[ 288], 99.50th=[ 305], 99.90th=[ 347], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 30, max= 288, per=29.41%, avg=99.10, stdev=71.09, samples=118 iops : min= 1, max= 18, avg= 5.41, stdev= 4.50, samples=118 write: IOPS=5, BW=90.1KiB/s (92.3kB/s)(6256KiB/69440msec); 0 zone resets clat (msec): min=32, max=580, avg=137.05, stdev=86.77 lat (msec): min=32, max=580, avg=137.05, stdev=86.77 clat percentiles (msec): | 1.00th=[ 43], 5.00th=[ 56], 10.00th=[ 63], 20.00th=[ 72], | 30.00th=[ 85], 40.00th=[ 99], 50.00th=[ 111], 60.00th=[ 125], | 70.00th=[ 146], 80.00th=[ 182], 90.00th=[ 268], 95.00th=[ 313], | 99.00th=[ 456], 99.50th=[ 489], 99.90th=[ 584], 99.95th=[ 584], | 99.99th=[ 584] bw ( KiB/s): min= 29, max= 223, per=26.24%, avg=93.17, stdev=51.76, samples=131 iops : min= 1, max= 13, avg= 5.02, stdev= 3.31, samples=131 lat (msec) : 10=1.95%, 20=17.97%, 50=20.83%, 100=24.87%, 250=27.60% lat (msec) : 500=6.64%, 750=0.13% cpu : usr=0.05%, sys=1.40%, ctx=1396, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=337KiB/s (346kB/s), 80.9KiB/s-92.1KiB/s (82.9kB/s-94.3kB/s), io=23.4MiB (24.5MB), run=67944-70981msec WRITE: bw=355KiB/s (364kB/s), 88.8KiB/s-92.2KiB/s (90.9kB/s-94.4kB/s), io=24.6MiB (25.8MB), run=67944-70981msec 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=144821: Fri Jun 12 11:21:51 2026 read: IOPS=1, BW=1234KiB/s (1263kB/s)(7168KiB/5811msec) clat (msec): min=94, max=372, avg=189.59, stdev=103.85 lat (msec): min=94, max=372, avg=189.59, stdev=103.85 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 94], 10.00th=[ 94], 20.00th=[ 96], | 30.00th=[ 142], 40.00th=[ 142], 50.00th=[ 144], 60.00th=[ 197], | 70.00th=[ 197], 80.00th=[ 284], 90.00th=[ 372], 95.00th=[ 372], | 99.00th=[ 372], 99.50th=[ 372], 99.90th=[ 372], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 1988, max= 4196, per=76.97%, avg=2565.50, stdev=1087.27, samples=4 iops : min= 1, max= 4, avg= 1.75, stdev= 1.50, samples=4 write: IOPS=0, BW=881KiB/s (902kB/s)(5120KiB/5811msec); 0 zone resets clat (msec): min=285, max=2590, avg=842.76, stdev=981.18 lat (msec): min=285, max=2591, avg=842.81, stdev=981.17 clat percentiles (msec): | 1.00th=[ 288], 5.00th=[ 288], 10.00th=[ 288], 20.00th=[ 288], | 30.00th=[ 368], 40.00th=[ 368], 50.00th=[ 456], 60.00th=[ 456], | 70.00th=[ 514], 80.00th=[ 514], 90.00th=[ 2601], 95.00th=[ 2601], | 99.00th=[ 2601], 99.50th=[ 2601], 99.90th=[ 2601], 99.95th=[ 2601], | 99.99th=[ 2601] bw ( KiB/s): min= 1946, max= 2048, per=42.93%, avg=2003.40, stdev=42.48, samples=5 iops : min= 1, max= 2, avg= 1.20, stdev= 0.45, samples=5 lat (msec) : 100=16.67%, 250=25.00%, 500=41.67%, 750=8.33%, >=2000=8.33% cpu : usr=0.00%, sys=9.09%, ctx=327, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144822: Fri Jun 12 11:21:51 2026 read: IOPS=0, BW=367KiB/s (376kB/s)(2048KiB/5580msec) clat (usec): min=1180, max=2626.8k, avg=1313982.59, stdev=1856582.20 lat (usec): min=1182, max=2626.8k, avg=1313984.38, stdev=1856582.60 clat percentiles (usec): | 1.00th=[ 1188], 5.00th=[ 1188], 10.00th=[ 1188], | 20.00th=[ 1188], 30.00th=[ 1188], 40.00th=[ 1188], | 50.00th=[ 1188], 60.00th=[2634023], 70.00th=[2634023], | 80.00th=[2634023], 90.00th=[2634023], 95.00th=[2634023], | 99.00th=[2634023], 99.50th=[2634023], 99.90th=[2634023], | 99.95th=[2634023], 99.99th=[2634023] bw ( KiB/s): min= 1988, max= 2048, per=60.55%, avg=2018.00, stdev=42.43, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 write: IOPS=1, BW=1835KiB/s (1879kB/s)(10.0MiB/5580msec); 0 zone resets clat (msec): min=126, max=537, avg=289.84, stdev=134.06 lat (msec): min=126, max=537, avg=289.93, stdev=134.07 clat percentiles (msec): | 1.00th=[ 127], 5.00th=[ 127], 10.00th=[ 127], 20.00th=[ 136], | 30.00th=[ 171], 40.00th=[ 251], 50.00th=[ 275], 60.00th=[ 284], | 70.00th=[ 317], 80.00th=[ 338], 90.00th=[ 464], 95.00th=[ 542], | 99.00th=[ 542], 99.50th=[ 542], 99.90th=[ 542], 99.95th=[ 542], | 99.99th=[ 542] bw ( KiB/s): min= 1943, max= 4087, per=64.54%, avg=3012.25, stdev=1178.51, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 lat (msec) : 2=8.33%, 250=25.00%, 500=50.00%, 750=8.33%, >=2000=8.33% cpu : usr=0.02%, sys=12.89%, ctx=589, 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=144823: Fri Jun 12 11:21:51 2026 read: IOPS=0, BW=1013KiB/s (1037kB/s)(6144KiB/6066msec) clat (usec): min=366, max=332165, avg=81325.32, stdev=137325.77 lat (usec): min=367, max=332167, avg=81326.68, stdev=137325.96 clat percentiles (usec): | 1.00th=[ 367], 5.00th=[ 367], 10.00th=[ 367], 20.00th=[ 445], | 30.00th=[ 445], 40.00th=[ 586], 50.00th=[ 586], 60.00th=[ 644], | 70.00th=[154141], 80.00th=[154141], 90.00th=[333448], 95.00th=[333448], | 99.00th=[333448], 99.50th=[333448], 99.90th=[333448], 99.95th=[333448], | 99.99th=[333448] bw ( KiB/s): min= 3984, max= 4087, per=100.00%, avg=4035.50, stdev=72.83, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=0, BW=1013KiB/s (1037kB/s)(6144KiB/6066msec); 0 zone resets clat (msec): min=125, max=2910, avg=882.70, stdev=1049.20 lat (msec): min=125, max=2910, avg=882.78, stdev=1049.21 clat percentiles (msec): | 1.00th=[ 126], 5.00th=[ 126], 10.00th=[ 126], 20.00th=[ 205], | 30.00th=[ 205], 40.00th=[ 363], 50.00th=[ 363], 60.00th=[ 642], | 70.00th=[ 1053], 80.00th=[ 1053], 90.00th=[ 2903], 95.00th=[ 2903], | 99.00th=[ 2903], 99.50th=[ 2903], 99.90th=[ 2903], 99.95th=[ 2903], | 99.99th=[ 2903] bw ( KiB/s): min= 1988, max= 2048, per=43.23%, avg=2017.75, stdev=32.15, samples=4 iops : min= 1, max= 2, avg= 1.25, stdev= 0.50, samples=4 lat (usec) : 500=16.67%, 750=16.67% lat (msec) : 250=25.00%, 500=16.67%, 750=8.33%, 2000=8.33%, >=2000=8.33% cpu : usr=0.02%, sys=5.56%, ctx=119, 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=144824: Fri Jun 12 11:21:51 2026 read: IOPS=0, BW=833KiB/s (853kB/s)(5120KiB/6143msec) clat (usec): min=382, max=244408, avg=115241.08, stdev=113422.62 lat (usec): min=383, max=244410, avg=115242.11, stdev=113422.78 clat percentiles (usec): | 1.00th=[ 383], 5.00th=[ 383], 10.00th=[ 383], 20.00th=[ 383], | 30.00th=[ 922], 40.00th=[ 922], 50.00th=[123208], 60.00th=[123208], | 70.00th=[206570], 80.00th=[206570], 90.00th=[244319], 95.00th=[244319], | 99.00th=[244319], 99.50th=[244319], 99.90th=[244319], 99.95th=[244319], | 99.99th=[244319] bw ( KiB/s): min= 8094, max= 8094, per=100.00%, avg=8094.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=1, BW=1167KiB/s (1195kB/s)(7168KiB/6143msec); 0 zone resets clat (msec): min=122, max=2845, avg=754.42, stdev=948.92 lat (msec): min=122, max=2845, avg=754.51, stdev=948.93 clat percentiles (msec): | 1.00th=[ 123], 5.00th=[ 123], 10.00th=[ 123], 20.00th=[ 241], | 30.00th=[ 288], 40.00th=[ 288], 50.00th=[ 384], 60.00th=[ 667], | 70.00th=[ 667], 80.00th=[ 735], 90.00th=[ 2836], 95.00th=[ 2836], | 99.00th=[ 2836], 99.50th=[ 2836], 99.90th=[ 2836], 99.95th=[ 2836], | 99.99th=[ 2836] bw ( KiB/s): min= 1943, max= 5988, per=60.02%, avg=2801.00, stdev=1782.08, samples=5 iops : min= 1, max= 5, avg= 1.80, stdev= 1.79, samples=5 lat (usec) : 500=8.33%, 1000=8.33% lat (msec) : 250=41.67%, 500=16.67%, 750=16.67%, >=2000=8.33% cpu : usr=0.05%, sys=7.26%, ctx=119, 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=3334KiB/s (3414kB/s), 367KiB/s-1234KiB/s (376kB/s-1263kB/s), io=20.0MiB (20.0MB), run=5580-6143msec WRITE: bw=4667KiB/s (4779kB/s), 881KiB/s-1835KiB/s (902kB/s-1879kB/s), io=28.0MiB (29.4MB), run=5580-6143msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144816: Fri Jun 12 11:21:52 2026 read: IOPS=1, BW=1325KiB/s (1357kB/s)(7168KiB/5408msec) clat (msec): min=78, max=502, avg=204.37, stdev=148.63 lat (msec): min=78, max=502, avg=204.37, stdev=148.63 clat percentiles (msec): | 1.00th=[ 79], 5.00th=[ 79], 10.00th=[ 79], 20.00th=[ 102], | 30.00th=[ 115], 40.00th=[ 115], 50.00th=[ 136], 60.00th=[ 245], | 70.00th=[ 245], 80.00th=[ 255], 90.00th=[ 502], 95.00th=[ 502], | 99.00th=[ 502], 99.50th=[ 502], 99.90th=[ 502], 99.95th=[ 502], | 99.99th=[ 502] bw ( KiB/s): min= 1831, max= 4308, per=81.58%, avg=2507.00, stdev=1201.86, samples=4 iops : min= 1, max= 4, avg= 1.75, stdev= 1.50, samples=4 write: IOPS=0, BW=947KiB/s (969kB/s)(5120KiB/5408msec); 0 zone resets clat (msec): min=211, max=2458, avg=753.72, stdev=959.33 lat (msec): min=211, max=2458, avg=753.80, stdev=959.34 clat percentiles (msec): | 1.00th=[ 211], 5.00th=[ 211], 10.00th=[ 211], 20.00th=[ 211], | 30.00th=[ 264], 40.00th=[ 264], 50.00th=[ 334], 60.00th=[ 334], | 70.00th=[ 502], 80.00th=[ 502], 90.00th=[ 2467], 95.00th=[ 2467], | 99.00th=[ 2467], 99.50th=[ 2467], 99.90th=[ 2467], 99.95th=[ 2467], | 99.99th=[ 2467] bw ( KiB/s): min= 1946, max= 3663, per=56.22%, avg=2418.75, stdev=830.51, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (msec) : 100=8.33%, 250=41.67%, 500=25.00%, 750=16.67%, >=2000=8.33% cpu : usr=0.02%, sys=2.87%, ctx=66, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144817: Fri Jun 12 11:21:52 2026 read: IOPS=0, BW=307KiB/s (315kB/s)(2048KiB/6664msec) clat (msec): min=123, max=2724, avg=1423.98, stdev=1838.77 lat (msec): min=123, max=2724, avg=1423.98, stdev=1838.77 clat percentiles (msec): | 1.00th=[ 125], 5.00th=[ 125], 10.00th=[ 125], 20.00th=[ 125], | 30.00th=[ 125], 40.00th=[ 125], 50.00th=[ 125], 60.00th=[ 2735], | 70.00th=[ 2735], 80.00th=[ 2735], 90.00th=[ 2735], 95.00th=[ 2735], | 99.00th=[ 2735], 99.50th=[ 2735], 99.90th=[ 2735], 99.95th=[ 2735], | 99.99th=[ 2735] bw ( KiB/s): min= 2023, max= 2031, per=65.96%, avg=2027.00, stdev= 5.66, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1537KiB/s (1573kB/s)(10.0MiB/6664msec); 0 zone resets clat (msec): min=160, max=745, avg=364.77, stdev=205.68 lat (msec): min=160, max=745, avg=364.96, stdev=205.65 clat percentiles (msec): | 1.00th=[ 161], 5.00th=[ 161], 10.00th=[ 161], 20.00th=[ 220], | 30.00th=[ 226], 40.00th=[ 230], 50.00th=[ 284], 60.00th=[ 326], | 70.00th=[ 334], 80.00th=[ 414], 90.00th=[ 718], 95.00th=[ 743], | 99.00th=[ 743], 99.50th=[ 743], 99.90th=[ 743], 99.95th=[ 743], | 99.99th=[ 743] bw ( KiB/s): min= 1831, max= 4047, per=61.04%, avg=2625.83, stdev=1066.81, samples=6 iops : min= 1, max= 3, avg= 1.67, stdev= 1.03, samples=6 lat (msec) : 250=41.67%, 500=33.33%, 750=16.67%, >=2000=8.33% cpu : usr=0.00%, sys=2.93%, ctx=82, 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=144818: Fri Jun 12 11:21:52 2026 read: IOPS=0, BW=926KiB/s (948kB/s)(6144KiB/6637msec) clat (msec): min=55, max=684, avg=220.26, stdev=232.83 lat (msec): min=55, max=684, avg=220.26, stdev=232.83 clat percentiles (msec): | 1.00th=[ 56], 5.00th=[ 56], 10.00th=[ 56], 20.00th=[ 95], | 30.00th=[ 95], 40.00th=[ 124], 50.00th=[ 124], 60.00th=[ 174], | 70.00th=[ 192], 80.00th=[ 192], 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= 1976, max= 3893, per=85.74%, avg=2634.67, stdev=1090.15, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=0, BW=926KiB/s (948kB/s)(6144KiB/6637msec); 0 zone resets clat (msec): min=158, max=2900, avg=870.85, stdev=1027.17 lat (msec): min=158, max=2901, avg=870.95, stdev=1027.21 clat percentiles (msec): | 1.00th=[ 159], 5.00th=[ 159], 10.00th=[ 159], 20.00th=[ 351], | 30.00th=[ 351], 40.00th=[ 380], 50.00th=[ 380], 60.00th=[ 510], | 70.00th=[ 927], 80.00th=[ 927], 90.00th=[ 2903], 95.00th=[ 2903], | 99.00th=[ 2903], 99.50th=[ 2903], 99.90th=[ 2903], 99.95th=[ 2903], | 99.99th=[ 2903] bw ( KiB/s): min= 1831, max= 2035, per=45.65%, avg=1963.80, stdev=83.20, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 100=16.67%, 250=33.33%, 500=16.67%, 750=16.67%, 1000=8.33% lat (msec) : >=2000=8.33% cpu : usr=0.00%, sys=2.41%, ctx=67, 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=144820: Fri Jun 12 11:21:52 2026 read: IOPS=0, BW=775KiB/s (793kB/s)(5120KiB/6609msec) clat (msec): min=57, max=608, avg=254.22, stdev=211.84 lat (msec): min=57, max=608, avg=254.22, stdev=211.84 clat percentiles (msec): | 1.00th=[ 57], 5.00th=[ 57], 10.00th=[ 57], 20.00th=[ 57], | 30.00th=[ 150], 40.00th=[ 150], 50.00th=[ 190], 60.00th=[ 190], | 70.00th=[ 266], 80.00th=[ 266], 90.00th=[ 609], 95.00th=[ 609], | 99.00th=[ 609], 99.50th=[ 609], 99.90th=[ 609], 99.95th=[ 609], | 99.99th=[ 609] bw ( KiB/s): min= 1976, max= 4047, per=87.41%, avg=2686.00, stdev=1179.03, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=1, BW=1085KiB/s (1111kB/s)(7168KiB/6609msec); 0 zone resets clat (msec): min=74, max=2894, avg=757.67, stdev=971.87 lat (msec): min=74, max=2894, avg=757.77, stdev=971.88 clat percentiles (msec): | 1.00th=[ 75], 5.00th=[ 75], 10.00th=[ 75], 20.00th=[ 226], | 30.00th=[ 262], 40.00th=[ 262], 50.00th=[ 456], 60.00th=[ 642], | 70.00th=[ 642], 80.00th=[ 751], 90.00th=[ 2903], 95.00th=[ 2903], | 99.00th=[ 2903], 99.50th=[ 2903], 99.90th=[ 2903], 99.95th=[ 2903], | 99.99th=[ 2903] bw ( KiB/s): min= 1831, max= 3953, per=54.41%, avg=2340.80, stdev=904.04, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (msec) : 100=16.67%, 250=25.00%, 500=25.00%, 750=16.67%, 1000=8.33% lat (msec) : >=2000=8.33% cpu : usr=0.00%, sys=2.21%, ctx=179, 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=3073KiB/s (3147kB/s), 307KiB/s-1325KiB/s (315kB/s-1357kB/s), io=20.0MiB (20.0MB), run=5408-6664msec WRITE: bw=4303KiB/s (4406kB/s), 926KiB/s-1537KiB/s (948kB/s-1573kB/s), io=28.0MiB (29.4MB), run=5408-6664msec 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=144833: Fri Jun 12 11:22:03 2026 read: IOPS=1, BW=5301KiB/s (5428kB/s)(12.0MiB/2318msec) clat (msec): min=661, max=757, avg=723.34, stdev=53.39 lat (msec): min=661, max=757, avg=723.35, stdev=53.39 clat percentiles (msec): | 1.00th=[ 659], 5.00th=[ 659], 10.00th=[ 659], 20.00th=[ 659], | 30.00th=[ 659], 40.00th=[ 751], 50.00th=[ 751], 60.00th=[ 751], | 70.00th=[ 760], 80.00th=[ 760], 90.00th=[ 760], 95.00th=[ 760], | 99.00th=[ 760], 99.50th=[ 760], 99.90th=[ 760], 99.95th=[ 760], | 99.99th=[ 760] bw ( KiB/s): min= 8047, max= 8126, per=100.00%, avg=8086.50, stdev=55.86, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 1000=66.67% cpu : usr=0.00%, sys=14.50%, ctx=432, 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=144835: Fri Jun 12 11:22:03 2026 read: IOPS=0, BW=1632KiB/s (1671kB/s)(4096KiB/2510msec) clat (nsec): min=684782k, max=684782k, avg=684782495.00, stdev= 0.00 lat (nsec): min=684786k, max=684786k, avg=684785715.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 684], 5.00th=[ 684], 10.00th=[ 684], 20.00th=[ 684], | 30.00th=[ 684], 40.00th=[ 684], 50.00th=[ 684], 60.00th=[ 684], | 70.00th=[ 684], 80.00th=[ 684], 90.00th=[ 684], 95.00th=[ 684], | 99.00th=[ 684], 99.50th=[ 684], 99.90th=[ 684], 99.95th=[ 684], | 99.99th=[ 684] bw ( KiB/s): min= 8143, max= 8143, per=100.00%, avg=8143.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3264KiB/s (3342kB/s)(8192KiB/2510msec); 0 zone resets clat (msec): min=440, max=1348, avg=894.23, stdev=642.34 lat (msec): min=441, max=1348, avg=894.97, stdev=641.92 clat percentiles (msec): | 1.00th=[ 439], 5.00th=[ 439], 10.00th=[ 439], 20.00th=[ 439], | 30.00th=[ 439], 40.00th=[ 439], 50.00th=[ 439], 60.00th=[ 1351], | 70.00th=[ 1351], 80.00th=[ 1351], 90.00th=[ 1351], 95.00th=[ 1351], | 99.00th=[ 1351], 99.50th=[ 1351], 99.90th=[ 1351], 99.95th=[ 1351], | 99.99th=[ 1351] bw ( KiB/s): min= 8143, max= 8143, per=64.12%, avg=8143.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.00%, sys=5.26%, ctx=131, 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=144836: Fri Jun 12 11:22:03 2026 write: IOPS=1, BW=4763KiB/s (4877kB/s)(12.0MiB/2580msec); 0 zone resets clat (msec): min=382, max=1147, avg=839.59, stdev=403.56 lat (msec): min=383, max=1147, avg=839.95, stdev=403.55 clat percentiles (msec): | 1.00th=[ 384], 5.00th=[ 384], 10.00th=[ 384], 20.00th=[ 384], | 30.00th=[ 384], 40.00th=[ 986], 50.00th=[ 986], 60.00th=[ 986], | 70.00th=[ 1150], 80.00th=[ 1150], 90.00th=[ 1150], 95.00th=[ 1150], | 99.00th=[ 1150], 99.50th=[ 1150], 99.90th=[ 1150], 99.95th=[ 1150], | 99.99th=[ 1150] bw ( KiB/s): min= 8143, max= 8143, per=64.12%, avg=8143.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=5.62%, ctx=41, 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=144837: Fri Jun 12 11:22:03 2026 write: IOPS=1, BW=6403KiB/s (6557kB/s)(12.0MiB/1919msec); 0 zone resets clat (msec): min=328, max=1034, avg=622.51, stdev=367.62 lat (msec): min=333, max=1035, avg=624.59, stdev=365.85 clat percentiles (msec): | 1.00th=[ 330], 5.00th=[ 330], 10.00th=[ 330], 20.00th=[ 330], | 30.00th=[ 330], 40.00th=[ 506], 50.00th=[ 506], 60.00th=[ 506], | 70.00th=[ 1036], 80.00th=[ 1036], 90.00th=[ 1036], 95.00th=[ 1036], | 99.00th=[ 1036], 99.50th=[ 1036], 99.90th=[ 1036], 99.95th=[ 1036], | 99.99th=[ 1036] bw ( KiB/s): min= 6553, max= 8143, per=57.86%, avg=7348.00, stdev=1124.30, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.00%, sys=5.16%, ctx=59, 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=6527KiB/s (6684kB/s), 1632KiB/s-5301KiB/s (1671kB/s-5428kB/s), io=16.0MiB (16.8MB), run=2318-2510msec WRITE: bw=12.4MiB/s (13.0MB/s), 3264KiB/s-6403KiB/s (3342kB/s-6557kB/s), io=32.0MiB (33.6MB), run=1919-2580msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144838: Fri Jun 12 11:22:04 2026 read: IOPS=1, BW=5222KiB/s (5348kB/s)(12.0MiB/2353msec) clat (msec): min=718, max=765, avg=750.06, stdev=27.11 lat (msec): min=718, max=765, avg=750.06, stdev=27.11 clat percentiles (msec): | 1.00th=[ 718], 5.00th=[ 718], 10.00th=[ 718], 20.00th=[ 718], | 30.00th=[ 718], 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= 8159, max= 8192, per=100.00%, avg=8175.50, stdev=23.33, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 750=33.33%, 1000=66.67% cpu : usr=0.00%, sys=4.68%, ctx=52, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144839: Fri Jun 12 11:22:04 2026 read: IOPS=0, BW=1375KiB/s (1408kB/s)(4096KiB/2978msec) clat (nsec): min=1149.3M, max=1149.3M, avg=1149286820.00, stdev= 0.00 lat (nsec): min=1149.3M, max=1149.3M, avg=1149289442.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1150], 5.00th=[ 1150], 10.00th=[ 1150], 20.00th=[ 1150], | 30.00th=[ 1150], 40.00th=[ 1150], 50.00th=[ 1150], 60.00th=[ 1150], | 70.00th=[ 1150], 80.00th=[ 1150], 90.00th=[ 1150], 95.00th=[ 1150], | 99.00th=[ 1150], 99.50th=[ 1150], 99.90th=[ 1150], 99.95th=[ 1150], | 99.99th=[ 1150] 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=2751KiB/s (2817kB/s)(8192KiB/2978msec); 0 zone resets clat (msec): min=331, max=1438, avg=884.86, stdev=783.24 lat (msec): min=331, max=1439, avg=885.23, stdev=783.18 clat percentiles (msec): | 1.00th=[ 330], 5.00th=[ 330], 10.00th=[ 330], 20.00th=[ 330], | 30.00th=[ 330], 40.00th=[ 330], 50.00th=[ 330], 60.00th=[ 1435], | 70.00th=[ 1435], 80.00th=[ 1435], 90.00th=[ 1435], 95.00th=[ 1435], | 99.00th=[ 1435], 99.50th=[ 1435], 99.90th=[ 1435], 99.95th=[ 1435], | 99.99th=[ 1435] bw ( KiB/s): min= 8126, max= 8126, per=74.80%, 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=3.86%, ctx=56, 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=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=144840: Fri Jun 12 11:22:04 2026 write: IOPS=0, BW=4074KiB/s (4172kB/s)(12.0MiB/3016msec); 0 zone resets clat (msec): min=330, max=1433, avg=972.56, stdev=573.50 lat (msec): min=330, max=1433, avg=973.00, stdev=573.54 clat percentiles (msec): | 1.00th=[ 330], 5.00th=[ 330], 10.00th=[ 330], 20.00th=[ 330], | 30.00th=[ 330], 40.00th=[ 1150], 50.00th=[ 1150], 60.00th=[ 1150], | 70.00th=[ 1435], 80.00th=[ 1435], 90.00th=[ 1435], 95.00th=[ 1435], | 99.00th=[ 1435], 99.50th=[ 1435], 99.90th=[ 1435], 99.95th=[ 1435], | 99.99th=[ 1435] bw ( KiB/s): min= 8126, max= 8175, per=75.02%, avg=8150.50, stdev=34.65, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.03%, sys=3.71%, ctx=47, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144841: Fri Jun 12 11:22:04 2026 write: IOPS=1, BW=5769KiB/s (5907kB/s)(12.0MiB/2130msec); 0 zone resets clat (msec): min=275, max=1007, avg=663.27, stdev=368.29 lat (msec): min=275, max=1008, avg=663.71, stdev=368.28 clat percentiles (msec): | 1.00th=[ 275], 5.00th=[ 275], 10.00th=[ 275], 20.00th=[ 275], | 30.00th=[ 275], 40.00th=[ 709], 50.00th=[ 709], 60.00th=[ 709], | 70.00th=[ 1011], 80.00th=[ 1011], 90.00th=[ 1011], 95.00th=[ 1011], | 99.00th=[ 1011], 99.50th=[ 1011], 99.90th=[ 1011], 99.95th=[ 1011], | 99.99th=[ 1011] bw ( KiB/s): min= 8192, max= 8192, per=75.41%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.00%, sys=6.62%, ctx=123, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=5502KiB/s (5634kB/s), 1375KiB/s-5222KiB/s (1408kB/s-5348kB/s), io=16.0MiB (16.8MB), run=2353-2978msec WRITE: bw=10.6MiB/s (11.1MB/s), 2751KiB/s-5769KiB/s (2817kB/s-5907kB/s), io=32.0MiB (33.6MB), run=2130-3016msec