== sanity test 398b: DIO and buffer IO race ============== 11:41:04 (1787845264) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 3.811 s, 13.2 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=146803: Thu Aug 27 11:43:31 2026 read: IOPS=11, BW=44.8KiB/s (45.8kB/s)(5992KiB/133839msec) clat (usec): min=35, max=571697, avg=43674.84, stdev=38081.39 lat (usec): min=36, max=571699, avg=43676.45, stdev=38081.36 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 65], 10.00th=[ 461], 20.00th=[ 19006], | 30.00th=[ 24511], 40.00th=[ 29754], 50.00th=[ 35390], 60.00th=[ 42730], | 70.00th=[ 52167], 80.00th=[ 64750], 90.00th=[ 84411], 95.00th=[105382], | 99.00th=[173016], 99.50th=[200279], 99.90th=[497026], 99.95th=[574620], | 99.99th=[574620] bw ( KiB/s): min= 7, max= 112, per=25.51%, avg=45.40, stdev=20.00, samples=258 iops : min= 1, max= 28, avg=10.71, stdev= 5.03, samples=258 write: IOPS=11, BW=47.0KiB/s (48.2kB/s)(6296KiB/133839msec); 0 zone resets clat (usec): min=994, max=540507, avg=43176.55, stdev=46551.71 lat (usec): min=994, max=540509, avg=43181.06, stdev=46550.32 clat percentiles (usec): | 1.00th=[ 1139], 5.00th=[ 1352], 10.00th=[ 2180], 20.00th=[ 4752], | 30.00th=[ 9241], 40.00th=[ 19530], 50.00th=[ 31327], 60.00th=[ 42730], | 70.00th=[ 55837], 80.00th=[ 72877], 90.00th=[102237], 95.00th=[127402], | 99.00th=[200279], 99.50th=[240124], 99.90th=[337642], 99.95th=[541066], | 99.99th=[541066] bw ( KiB/s): min= 7, max= 112, per=25.21%, avg=46.89, stdev=20.78, samples=262 iops : min= 1, max= 28, avg=11.09, stdev= 5.24, samples=262 lat (usec) : 50=0.33%, 100=3.78%, 250=0.65%, 500=0.13%, 1000=0.07% lat (msec) : 2=4.79%, 4=4.10%, 10=7.58%, 20=9.67%, 50=35.45% lat (msec) : 100=25.23%, 250=7.94%, 500=0.23%, 750=0.07% cpu : usr=0.09%, sys=5.33%, ctx=6621, 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=146804: Thu Aug 27 11:43:31 2026 read: IOPS=11, BW=45.2KiB/s (46.2kB/s)(5940KiB/131514msec) clat (usec): min=29, max=351592, avg=43698.06, stdev=32907.51 lat (usec): min=29, max=351595, avg=43705.92, stdev=32907.38 clat percentiles (usec): | 1.00th=[ 51], 5.00th=[ 67], 10.00th=[ 1532], 20.00th=[ 20055], | 30.00th=[ 25560], 40.00th=[ 31589], 50.00th=[ 37487], 60.00th=[ 44303], | 70.00th=[ 52691], 80.00th=[ 64226], 90.00th=[ 84411], 95.00th=[101188], | 99.00th=[160433], 99.50th=[183501], 99.90th=[223347], 99.95th=[350225], | 99.99th=[350225] bw ( KiB/s): min= 7, max= 102, per=25.30%, avg=45.03, stdev=19.31, samples=257 iops : min= 1, max= 25, avg=10.62, stdev= 4.86, samples=257 write: IOPS=12, BW=48.3KiB/s (49.4kB/s)(6348KiB/131514msec); 0 zone resets clat (usec): min=872, max=640096, avg=41729.91, stdev=47935.55 lat (usec): min=873, max=640098, avg=41743.72, stdev=47990.76 clat percentiles (usec): | 1.00th=[ 1172], 5.00th=[ 1319], 10.00th=[ 1958], 20.00th=[ 4621], | 30.00th=[ 9634], 40.00th=[ 20055], 50.00th=[ 30278], 60.00th=[ 41157], | 70.00th=[ 53740], 80.00th=[ 67634], 90.00th=[ 92799], 95.00th=[123208], | 99.00th=[196084], 99.50th=[258999], 99.90th=[549454], 99.95th=[641729], | 99.99th=[641729] bw ( KiB/s): min= 7, max= 134, per=25.74%, avg=47.88, stdev=21.48, samples=258 iops : min= 1, max= 33, avg=11.32, stdev= 5.40, samples=258 lat (usec) : 50=0.46%, 100=3.45%, 250=0.68%, 500=0.10%, 750=0.03% lat (usec) : 1000=0.03% lat (msec) : 2=5.50%, 4=4.13%, 10=6.41%, 20=9.54%, 50=36.62% lat (msec) : 100=26.17%, 250=6.58%, 500=0.23%, 750=0.07% cpu : usr=0.08%, sys=5.34%, ctx=6651, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=146805: Thu Aug 27 11:43:31 2026 read: IOPS=11, BW=44.8KiB/s (45.8kB/s)(6028KiB/134653msec) clat (usec): min=32, max=292018, avg=43383.27, stdev=33891.24 lat (usec): min=32, max=292019, avg=43388.26, stdev=33892.00 clat percentiles (usec): | 1.00th=[ 51], 5.00th=[ 67], 10.00th=[ 10945], 20.00th=[ 19530], | 30.00th=[ 24249], 40.00th=[ 29754], 50.00th=[ 36439], 60.00th=[ 43254], | 70.00th=[ 51643], 80.00th=[ 63701], 90.00th=[ 83362], 95.00th=[104334], | 99.00th=[160433], 99.50th=[185598], 99.90th=[287310], 99.95th=[291505], | 99.99th=[291505] bw ( KiB/s): min= 7, max= 110, per=25.23%, avg=44.91, stdev=20.21, samples=260 iops : min= 1, max= 27, avg=10.59, stdev= 5.10, samples=260 write: IOPS=11, BW=46.5KiB/s (47.6kB/s)(6260KiB/134653msec); 0 zone resets clat (usec): min=991, max=849932, avg=43964.36, stdev=51961.54 lat (usec): min=992, max=849935, avg=43967.82, stdev=51960.40 clat percentiles (usec): | 1.00th=[ 1123], 5.00th=[ 1319], 10.00th=[ 1909], 20.00th=[ 4883], | 30.00th=[ 9896], 40.00th=[ 21103], 50.00th=[ 30540], 60.00th=[ 42206], | 70.00th=[ 55313], 80.00th=[ 70779], 90.00th=[ 99091], 95.00th=[135267], | 99.00th=[210764], 99.50th=[254804], 99.90th=[658506], 99.95th=[851444], | 99.99th=[851444] bw ( KiB/s): min= 7, max= 111, per=24.75%, avg=46.04, stdev=21.13, samples=263 iops : min= 1, max= 27, avg=10.87, stdev= 5.30, samples=263 lat (usec) : 50=0.42%, 100=3.26%, 250=0.33%, 500=0.23%, 750=0.03% lat (usec) : 1000=0.07% lat (msec) : 2=5.34%, 4=3.61%, 10=6.80%, 20=10.06%, 50=36.98% lat (msec) : 100=25.10%, 250=7.36%, 500=0.36%, 750=0.03%, 1000=0.03% cpu : usr=0.08%, sys=5.39%, ctx=6665, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=146806: Thu Aug 27 11:43:31 2026 read: IOPS=11, BW=45.1KiB/s (46.1kB/s)(6052KiB/134288msec) clat (usec): min=32, max=525469, avg=41895.81, stdev=34855.16 lat (usec): min=33, max=525471, avg=41898.85, stdev=34854.18 clat percentiles (usec): | 1.00th=[ 47], 5.00th=[ 62], 10.00th=[ 165], 20.00th=[ 18744], | 30.00th=[ 24511], 40.00th=[ 30016], 50.00th=[ 35390], 60.00th=[ 42206], | 70.00th=[ 50594], 80.00th=[ 62129], 90.00th=[ 80217], 95.00th=[ 99091], | 99.00th=[158335], 99.50th=[183501], 99.90th=[354419], 99.95th=[526386], | 99.99th=[526386] bw ( KiB/s): min= 7, max= 120, per=25.52%, avg=45.43, stdev=22.09, samples=260 iops : min= 1, max= 30, avg=10.70, stdev= 5.56, samples=260 write: IOPS=11, BW=46.4KiB/s (47.6kB/s)(6236KiB/134288msec); 0 zone resets clat (usec): min=977, max=882802, avg=45226.81, stdev=54189.87 lat (usec): min=978, max=882804, avg=45229.39, stdev=54189.93 clat percentiles (usec): | 1.00th=[ 1123], 5.00th=[ 1336], 10.00th=[ 1958], 20.00th=[ 4228], | 30.00th=[ 8848], 40.00th=[ 20841], 50.00th=[ 32375], 60.00th=[ 42206], | 70.00th=[ 57410], 80.00th=[ 74974], 90.00th=[105382], 95.00th=[135267], | 99.00th=[231736], 99.50th=[295699], 99.90th=[574620], 99.95th=[884999], | 99.99th=[884999] bw ( KiB/s): min= 7, max= 119, per=24.94%, avg=46.40, stdev=20.63, samples=262 iops : min= 1, max= 29, avg=10.96, stdev= 5.22, samples=262 lat (usec) : 50=0.91%, 100=3.65%, 250=0.59%, 500=0.13%, 750=0.07% lat (usec) : 1000=0.16% lat (msec) : 2=5.24%, 4=4.46%, 10=6.61%, 20=8.98%, 50=36.56% lat (msec) : 100=24.71%, 250=7.55%, 500=0.29%, 750=0.07%, 1000=0.03% cpu : usr=0.07%, sys=5.20%, ctx=6548, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=178KiB/s (183kB/s), 44.8KiB/s-45.2KiB/s (45.8kB/s-46.2kB/s), io=23.4MiB (24.6MB), run=131514-134653msec WRITE: bw=187KiB/s (191kB/s), 46.4KiB/s-48.3KiB/s (47.6kB/s-49.4kB/s), io=24.6MiB (25.7MB), run=131514-134653msec rand-rw: (groupid=0, jobs=1): err= 0: pid=146799: Thu Aug 27 11:45:35 2026 read: IOPS=5, BW=23.2KiB/s (23.8kB/s)(5992KiB/257994msec) clat (msec): min=5, max=594, avg=33.59, stdev=41.47 lat (msec): min=5, max=594, avg=33.59, stdev=41.47 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 12], | 30.00th=[ 14], 40.00th=[ 17], 50.00th=[ 19], 60.00th=[ 23], | 70.00th=[ 30], 80.00th=[ 47], 90.00th=[ 77], 95.00th=[ 108], | 99.00th=[ 203], 99.50th=[ 266], 99.90th=[ 414], 99.95th=[ 592], | 99.99th=[ 592] bw ( KiB/s): min= 7, max= 103, per=28.46%, avg=26.47, stdev=18.39, samples=439 iops : min= 1, max= 25, avg= 6.00, stdev= 4.64, samples=439 write: IOPS=6, BW=24.4KiB/s (24.0kB/s)(6296KiB/257994msec); 0 zone resets clat (msec): min=41, max=595, avg=131.73, stdev=75.94 lat (msec): min=41, max=595, avg=131.74, stdev=75.94 clat percentiles (msec): | 1.00th=[ 49], 5.00th=[ 60], 10.00th=[ 67], 20.00th=[ 79], | 30.00th=[ 87], 40.00th=[ 96], 50.00th=[ 108], 60.00th=[ 123], | 70.00th=[ 144], 80.00th=[ 176], 90.00th=[ 230], 95.00th=[ 279], | 99.00th=[ 405], 99.50th=[ 493], 99.90th=[ 567], 99.95th=[ 600], | 99.99th=[ 600] bw ( KiB/s): min= 7, max= 63, per=25.06%, avg=24.31, stdev=12.36, samples=500 iops : min= 1, max= 15, avg= 5.45, stdev= 3.16, samples=500 lat (msec) : 10=5.70%, 20=20.51%, 50=14.29%, 100=27.96%, 250=27.38% lat (msec) : 500=3.91%, 750=0.26% cpu : usr=0.04%, sys=1.20%, ctx=5279, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=146800: Thu Aug 27 11:45:35 2026 read: IOPS=5, BW=23.0KiB/s (23.6kB/s)(5940KiB/258175msec) clat (msec): min=4, max=841, avg=32.38, stdev=41.47 lat (msec): min=4, max=841, avg=32.38, stdev=41.47 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 12], | 30.00th=[ 15], 40.00th=[ 17], 50.00th=[ 19], 60.00th=[ 23], | 70.00th=[ 29], 80.00th=[ 43], 90.00th=[ 71], 95.00th=[ 101], | 99.00th=[ 194], 99.50th=[ 236], 99.90th=[ 355], 99.95th=[ 844], | 99.99th=[ 844] bw ( KiB/s): min= 7, max= 104, per=28.81%, avg=26.79, stdev=18.76, samples=429 iops : min= 1, max= 26, avg= 6.08, stdev= 4.74, samples=429 write: IOPS=6, BW=24.6KiB/s (25.2kB/s)(6348KiB/258175msec); 0 zone resets clat (msec): min=36, max=837, avg=132.16, stdev=77.92 lat (msec): min=36, max=837, avg=132.16, stdev=77.92 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 57], 10.00th=[ 64], 20.00th=[ 77], | 30.00th=[ 88], 40.00th=[ 100], 50.00th=[ 111], 60.00th=[ 125], | 70.00th=[ 146], 80.00th=[ 176], 90.00th=[ 228], 95.00th=[ 284], | 99.00th=[ 439], 99.50th=[ 485], 99.90th=[ 743], 99.95th=[ 835], | 99.99th=[ 835] bw ( KiB/s): min= 7, max= 55, per=25.28%, avg=24.52, stdev=12.42, samples=499 iops : min= 1, max= 13, avg= 5.50, stdev= 3.17, samples=499 lat (msec) : 10=4.85%, 20=21.26%, 50=14.91%, 100=26.20%, 250=28.84% lat (msec) : 500=3.71%, 750=0.16%, 1000=0.07% cpu : usr=0.04%, sys=1.13%, ctx=5348, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=146801: Thu Aug 27 11:45:35 2026 read: IOPS=5, BW=23.4KiB/s (23.9kB/s)(6028KiB/257881msec) clat (msec): min=5, max=438, avg=33.33, stdev=37.18 lat (msec): min=5, max=438, avg=33.33, stdev=37.18 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 12], | 30.00th=[ 15], 40.00th=[ 17], 50.00th=[ 20], 60.00th=[ 24], | 70.00th=[ 31], 80.00th=[ 47], 90.00th=[ 77], 95.00th=[ 106], | 99.00th=[ 192], 99.50th=[ 222], 99.90th=[ 393], 99.95th=[ 439], | 99.99th=[ 439] bw ( KiB/s): min= 7, max= 120, per=28.16%, avg=26.19, stdev=18.97, samples=446 iops : min= 1, max= 30, avg= 5.92, stdev= 4.78, samples=446 write: IOPS=6, BW=24.3KiB/s (24.9kB/s)(6260KiB/257881msec); 0 zone resets clat (msec): min=34, max=938, avg=132.46, stdev=78.99 lat (msec): min=34, max=938, avg=132.47, stdev=78.99 clat percentiles (msec): | 1.00th=[ 46], 5.00th=[ 57], 10.00th=[ 66], 20.00th=[ 77], | 30.00th=[ 87], 40.00th=[ 97], 50.00th=[ 110], 60.00th=[ 124], | 70.00th=[ 144], 80.00th=[ 178], 90.00th=[ 230], 95.00th=[ 288], | 99.00th=[ 414], 99.50th=[ 477], 99.90th=[ 642], 99.95th=[ 936], | 99.99th=[ 936] bw ( KiB/s): min= 7, max= 56, per=24.94%, avg=24.19, stdev=12.37, samples=500 iops : min= 1, max= 14, avg= 5.42, stdev= 3.16, samples=500 lat (msec) : 10=5.47%, 20=20.64%, 50=14.81%, 100=27.15%, 250=27.93% lat (msec) : 500=3.81%, 750=0.16%, 1000=0.03% cpu : usr=0.04%, sys=1.13%, ctx=5317, 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=146802: Thu Aug 27 11:45:35 2026 read: IOPS=5, BW=23.5KiB/s (24.1kB/s)(6052KiB/257514msec) clat (msec): min=5, max=459, avg=33.17, stdev=39.80 lat (msec): min=5, max=459, avg=33.18, stdev=39.80 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 12], | 30.00th=[ 14], 40.00th=[ 16], 50.00th=[ 19], 60.00th=[ 23], | 70.00th=[ 29], 80.00th=[ 43], 90.00th=[ 77], 95.00th=[ 112], | 99.00th=[ 203], 99.50th=[ 236], 99.90th=[ 313], 99.95th=[ 460], | 99.99th=[ 460] bw ( KiB/s): min= 7, max= 111, per=29.57%, avg=27.50, stdev=18.88, samples=427 iops : min= 1, max= 27, avg= 6.26, stdev= 4.77, samples=427 write: IOPS=6, BW=24.2KiB/s (24.8kB/s)(6236KiB/257514msec); 0 zone resets clat (msec): min=35, max=894, avg=132.76, stdev=78.73 lat (msec): min=35, max=894, avg=132.76, stdev=78.73 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 58], 10.00th=[ 65], 20.00th=[ 78], | 30.00th=[ 87], 40.00th=[ 96], 50.00th=[ 110], 60.00th=[ 124], | 70.00th=[ 146], 80.00th=[ 180], 90.00th=[ 236], 95.00th=[ 284], | 99.00th=[ 414], 99.50th=[ 502], 99.90th=[ 743], 99.95th=[ 894], | 99.99th=[ 894] bw ( KiB/s): min= 7, max= 56, per=24.99%, avg=24.24, stdev=12.51, samples=497 iops : min= 1, max= 14, avg= 5.43, stdev= 3.19, samples=497 lat (msec) : 10=5.53%, 20=21.00%, 50=14.91%, 100=26.46%, 250=27.67% lat (msec) : 500=4.20%, 750=0.20%, 1000=0.03% cpu : usr=0.04%, sys=1.14%, ctx=5360, 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=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=93.0KiB/s (95.2kB/s), 23.0KiB/s-23.5KiB/s (23.6kB/s-24.1kB/s), io=23.4MiB (24.6MB), run=257514-258175msec WRITE: bw=97.4KiB/s (99.7kB/s), 24.2KiB/s-24.6KiB/s (24.8kB/s-25.2kB/s), io=24.6MiB (25.7MB), run=257514-258175msec 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=146858: Thu Aug 27 11:46:06 2026 read: IOPS=16, BW=266KiB/s (272kB/s)(5920KiB/22269msec) clat (usec): min=39, max=186847, avg=28485.32, stdev=24773.95 lat (usec): min=39, max=186847, avg=28486.49, stdev=24773.92 clat percentiles (usec): | 1.00th=[ 41], 5.00th=[ 60], 10.00th=[ 70], 20.00th=[ 141], | 30.00th=[ 16712], 40.00th=[ 22676], 50.00th=[ 27132], 60.00th=[ 32637], | 70.00th=[ 38011], 80.00th=[ 43254], 90.00th=[ 53740], 95.00th=[ 71828], | 99.00th=[128451], 99.50th=[147850], 99.90th=[187696], 99.95th=[187696], | 99.99th=[187696] bw ( KiB/s): min= 31, max= 480, per=24.81%, avg=265.98, stdev=96.51, samples=44 iops : min= 1, max= 30, avg=15.91, stdev= 6.10, samples=44 write: IOPS=17, BW=286KiB/s (293kB/s)(6368KiB/22269msec); 0 zone resets clat (usec): min=1369, max=219894, avg=29192.44, stdev=33903.07 lat (usec): min=1371, max=219896, avg=29194.96, stdev=33902.87 clat percentiles (usec): | 1.00th=[ 1565], 5.00th=[ 2376], 10.00th=[ 2966], 20.00th=[ 4424], | 30.00th=[ 6521], 40.00th=[ 9896], 50.00th=[ 15664], 60.00th=[ 24511], | 70.00th=[ 35390], 80.00th=[ 51643], 90.00th=[ 70779], 95.00th=[ 93848], | 99.00th=[170918], 99.50th=[185598], 99.90th=[219153], 99.95th=[219153], | 99.99th=[219153] bw ( KiB/s): min= 95, max= 429, per=25.30%, avg=285.41, stdev=85.01, samples=44 iops : min= 5, max= 26, avg=17.11, stdev= 5.36, samples=44 lat (usec) : 50=1.04%, 100=6.90%, 250=2.60%, 500=0.52%, 750=0.26% lat (usec) : 1000=0.39% lat (msec) : 2=1.69%, 4=7.68%, 10=12.50%, 20=11.72%, 50=36.98% lat (msec) : 100=14.97%, 250=2.73% cpu : usr=0.10%, sys=8.34%, ctx=1548, 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=146859: Thu Aug 27 11:46:06 2026 read: IOPS=16, BW=261KiB/s (267kB/s)(5744KiB/22045msec) clat (usec): min=39, max=148064, avg=30135.67, stdev=24090.61 lat (usec): min=39, max=148065, avg=30141.28, stdev=24085.30 clat percentiles (usec): | 1.00th=[ 49], 5.00th=[ 64], 10.00th=[ 77], 20.00th=[ 176], | 30.00th=[ 19006], 40.00th=[ 24773], 50.00th=[ 28967], 60.00th=[ 34866], | 70.00th=[ 40633], 80.00th=[ 47973], 90.00th=[ 59507], 95.00th=[ 70779], | 99.00th=[ 96994], 99.50th=[126354], 99.90th=[147850], 99.95th=[147850], | 99.99th=[147850] bw ( KiB/s): min= 60, max= 447, per=24.27%, avg=260.16, stdev=96.49, samples=43 iops : min= 3, max= 27, avg=15.53, stdev= 6.10, samples=43 write: IOPS=18, BW=297KiB/s (304kB/s)(6544KiB/22045msec); 0 zone resets clat (usec): min=1362, max=181983, avg=26745.07, stdev=27558.83 lat (usec): min=1363, max=181985, avg=26747.13, stdev=27558.82 clat percentiles (usec): | 1.00th=[ 1565], 5.00th=[ 2089], 10.00th=[ 3064], 20.00th=[ 5080], | 30.00th=[ 7373], 40.00th=[ 10552], 50.00th=[ 15795], 60.00th=[ 23725], | 70.00th=[ 33817], 80.00th=[ 46924], 90.00th=[ 68682], 95.00th=[ 81265], | 99.00th=[108528], 99.50th=[149947], 99.90th=[181404], 99.95th=[181404], | 99.99th=[181404] bw ( KiB/s): min= 95, max= 573, per=26.28%, avg=296.47, stdev=110.96, samples=43 iops : min= 5, max= 35, avg=17.84, stdev= 7.02, samples=43 lat (usec) : 50=0.52%, 100=6.38%, 250=2.73%, 500=0.65%, 750=0.52% lat (usec) : 1000=0.26% lat (msec) : 2=2.60%, 4=4.95%, 10=13.67%, 20=12.24%, 50=37.37% lat (msec) : 100=16.80%, 250=1.30% cpu : usr=0.15%, sys=8.63%, ctx=1550, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=146861: Thu Aug 27 11:46:06 2026 read: IOPS=17, BW=280KiB/s (287kB/s)(6256KiB/22334msec) clat (usec): min=38, max=166020, avg=29623.12, stdev=26012.07 lat (usec): min=38, max=166021, avg=29624.30, stdev=26012.03 clat percentiles (usec): | 1.00th=[ 41], 5.00th=[ 59], 10.00th=[ 70], 20.00th=[ 108], | 30.00th=[ 17433], 40.00th=[ 22414], 50.00th=[ 26608], 60.00th=[ 31589], | 70.00th=[ 37487], 80.00th=[ 49546], 90.00th=[ 60556], 95.00th=[ 76022], | 99.00th=[113771], 99.50th=[139461], 99.90th=[166724], 99.95th=[166724], | 99.99th=[166724] bw ( KiB/s): min= 30, max= 544, per=26.13%, avg=280.14, stdev=91.19, samples=44 iops : min= 1, max= 34, avg=16.77, stdev= 5.80, samples=44 write: IOPS=16, BW=270KiB/s (277kB/s)(6032KiB/22334msec); 0 zone resets clat (usec): min=1356, max=228849, avg=27871.62, stdev=30786.54 lat (usec): min=1358, max=228850, avg=27874.07, stdev=30786.38 clat percentiles (usec): | 1.00th=[ 1582], 5.00th=[ 2040], 10.00th=[ 3294], 20.00th=[ 5342], | 30.00th=[ 7635], 40.00th=[ 10814], 50.00th=[ 16188], 60.00th=[ 24773], | 70.00th=[ 32900], 80.00th=[ 45351], 90.00th=[ 70779], 95.00th=[ 87557], | 99.00th=[124257], 99.50th=[212861], 99.90th=[229639], 99.95th=[229639], | 99.99th=[229639] bw ( KiB/s): min= 63, max= 480, per=23.53%, avg=265.45, stdev=105.08, samples=44 iops : min= 3, max= 30, avg=15.86, stdev= 6.60, samples=44 lat (usec) : 50=1.04%, 100=8.33%, 250=2.47%, 500=0.65%, 750=0.26% lat (usec) : 1000=0.13% lat (msec) : 2=2.34%, 4=4.69%, 10=11.07%, 20=14.32%, 50=36.20% lat (msec) : 100=15.36%, 250=3.12% cpu : usr=0.09%, sys=8.08%, ctx=1516, 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=146863: Thu Aug 27 11:46:06 2026 read: IOPS=17, BW=283KiB/s (289kB/s)(6032KiB/21348msec) clat (usec): min=33, max=120781, avg=28136.79, stdev=22336.98 lat (usec): min=33, max=120781, avg=28137.89, stdev=22336.98 clat percentiles (usec): | 1.00th=[ 43], 5.00th=[ 55], 10.00th=[ 64], 20.00th=[ 104], | 30.00th=[ 16909], 40.00th=[ 22676], 50.00th=[ 25822], 60.00th=[ 31589], | 70.00th=[ 38536], 80.00th=[ 46400], 90.00th=[ 57410], 95.00th=[ 69731], | 99.00th=[ 83362], 99.50th=[ 98042], 99.90th=[121111], 99.95th=[121111], | 99.99th=[121111] bw ( KiB/s): min= 127, max= 501, per=26.74%, avg=286.66, stdev=93.04, samples=41 iops : min= 7, max= 31, avg=17.20, stdev= 5.97, samples=41 write: IOPS=18, BW=293KiB/s (300kB/s)(6256KiB/21348msec); 0 zone resets clat (usec): min=1391, max=259810, avg=26946.72, stdev=31040.63 lat (usec): min=1393, max=259813, avg=26949.70, stdev=31040.04 clat percentiles (usec): | 1.00th=[ 1516], 5.00th=[ 2040], 10.00th=[ 2933], 20.00th=[ 4686], | 30.00th=[ 6652], 40.00th=[ 9896], 50.00th=[ 15795], 60.00th=[ 24511], | 70.00th=[ 31851], 80.00th=[ 45876], 90.00th=[ 57934], 95.00th=[ 82314], | 99.00th=[145753], 99.50th=[200279], 99.90th=[258999], 99.95th=[258999], | 99.99th=[258999] bw ( KiB/s): min= 61, max= 460, per=26.01%, avg=293.38, stdev=94.01, samples=42 iops : min= 3, max= 28, avg=17.62, stdev= 5.91, samples=42 lat (usec) : 50=1.43%, 100=8.20%, 250=1.43%, 500=0.13%, 750=0.52% lat (msec) : 2=2.60%, 4=5.86%, 10=12.76%, 20=12.11%, 50=39.06% lat (msec) : 100=13.93%, 250=1.82%, 500=0.13% cpu : usr=0.08%, sys=8.66%, ctx=1565, 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=1072KiB/s (1098kB/s), 261KiB/s-283KiB/s (267kB/s-289kB/s), io=23.4MiB (24.5MB), run=21348-22334msec WRITE: bw=1128KiB/s (1155kB/s), 270KiB/s-297KiB/s (277kB/s-304kB/s), io=24.6MiB (25.8MB), run=21348-22334msec rand-rw: (groupid=0, jobs=1): err= 0: pid=146860: Thu Aug 27 11:46:40 2026 read: IOPS=6, BW=105KiB/s (108kB/s)(5920KiB/56302msec) clat (msec): min=7, max=242, avg=30.02, stdev=28.92 lat (msec): min=7, max=242, avg=30.02, stdev=28.92 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 18], 50.00th=[ 20], 60.00th=[ 23], | 70.00th=[ 28], 80.00th=[ 37], 90.00th=[ 68], 95.00th=[ 101], | 99.00th=[ 138], 99.50th=[ 157], 99.90th=[ 243], 99.95th=[ 243], | 99.99th=[ 243] bw ( KiB/s): min= 31, max= 512, per=25.91%, avg=109.61, stdev=75.28, samples=105 iops : min= 1, max= 32, avg= 6.12, stdev= 4.79, samples=105 write: IOPS=7, BW=113KiB/s (116kB/s)(6368KiB/56302msec); 0 zone resets clat (msec): min=38, max=352, avg=113.00, stdev=50.08 lat (msec): min=38, max=352, avg=113.00, stdev=50.08 clat percentiles (msec): | 1.00th=[ 45], 5.00th=[ 58], 10.00th=[ 66], 20.00th=[ 77], | 30.00th=[ 85], 40.00th=[ 92], 50.00th=[ 101], 60.00th=[ 111], | 70.00th=[ 123], 80.00th=[ 146], 90.00th=[ 174], 95.00th=[ 220], | 99.00th=[ 309], 99.50th=[ 347], 99.90th=[ 355], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 31, max= 192, per=25.17%, avg=112.00, stdev=43.57, samples=111 iops : min= 1, max= 12, avg= 6.27, stdev= 2.84, samples=111 lat (msec) : 10=2.99%, 20=22.01%, 50=17.45%, 100=28.91%, 250=27.60% lat (msec) : 500=1.04% cpu : usr=0.06%, sys=1.56%, ctx=1335, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=146862: Thu Aug 27 11:46:40 2026 read: IOPS=6, BW=102KiB/s (104kB/s)(5744KiB/56552msec) clat (msec): min=6, max=265, avg=31.60, stdev=33.01 lat (msec): min=6, max=265, avg=31.60, stdev=33.01 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 18], 50.00th=[ 21], 60.00th=[ 24], | 70.00th=[ 29], 80.00th=[ 41], 90.00th=[ 68], 95.00th=[ 95], | 99.00th=[ 199], 99.50th=[ 236], 99.90th=[ 266], 99.95th=[ 266], | 99.99th=[ 266] bw ( KiB/s): min= 30, max= 349, per=26.09%, avg=110.34, stdev=68.69, samples=102 iops : min= 1, max= 21, avg= 6.18, stdev= 4.37, samples=102 write: IOPS=7, BW=116KiB/s (118kB/s)(6544KiB/56552msec); 0 zone resets clat (msec): min=41, max=352, avg=109.89, stdev=46.28 lat (msec): min=41, max=352, avg=109.89, stdev=46.28 clat percentiles (msec): | 1.00th=[ 46], 5.00th=[ 59], 10.00th=[ 64], 20.00th=[ 73], | 30.00th=[ 84], 40.00th=[ 91], 50.00th=[ 100], 60.00th=[ 110], | 70.00th=[ 123], 80.00th=[ 136], 90.00th=[ 171], 95.00th=[ 209], | 99.00th=[ 266], 99.50th=[ 266], 99.90th=[ 351], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 31, max= 255, per=25.83%, avg=114.96, stdev=47.02, samples=112 iops : min= 1, max= 15, avg= 6.46, stdev= 2.99, samples=112 lat (msec) : 10=2.08%, 20=21.48%, 50=17.45%, 100=30.47%, 250=27.47% lat (msec) : 500=1.04% cpu : usr=0.05%, sys=1.56%, ctx=1373, 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=146864: Thu Aug 27 11:46:40 2026 read: IOPS=7, BW=116KiB/s (119kB/s)(6256KiB/53931msec) clat (msec): min=6, max=269, avg=29.52, stdev=28.86 lat (msec): min=6, max=269, avg=29.52, stdev=28.86 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 18], 50.00th=[ 20], 60.00th=[ 23], | 70.00th=[ 28], 80.00th=[ 37], 90.00th=[ 63], 95.00th=[ 89], | 99.00th=[ 144], 99.50th=[ 176], 99.90th=[ 271], 99.95th=[ 271], | 99.99th=[ 271] bw ( KiB/s): min= 31, max= 349, per=29.01%, avg=122.73, stdev=81.62, samples=101 iops : min= 1, max= 21, avg= 6.96, stdev= 5.16, samples=101 write: IOPS=6, BW=112KiB/s (115kB/s)(6032KiB/53931msec); 0 zone resets clat (msec): min=43, max=337, avg=112.27, stdev=45.06 lat (msec): min=43, max=337, avg=112.27, stdev=45.06 clat percentiles (msec): | 1.00th=[ 51], 5.00th=[ 60], 10.00th=[ 66], 20.00th=[ 77], | 30.00th=[ 84], 40.00th=[ 93], 50.00th=[ 103], 60.00th=[ 111], | 70.00th=[ 129], 80.00th=[ 144], 90.00th=[ 174], 95.00th=[ 199], | 99.00th=[ 262], 99.50th=[ 275], 99.90th=[ 338], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 31, max= 223, per=25.04%, avg=111.41, stdev=44.09, samples=107 iops : min= 1, max= 13, avg= 6.24, stdev= 2.87, samples=107 lat (msec) : 10=2.47%, 20=23.18%, 50=19.14%, 100=26.69%, 250=27.86% lat (msec) : 500=0.65% cpu : usr=0.06%, sys=1.64%, ctx=1363, 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=146865: Thu Aug 27 11:46:40 2026 read: IOPS=6, BW=109KiB/s (112kB/s)(6032KiB/55092msec) clat (msec): min=5, max=210, avg=28.72, stdev=26.15 lat (msec): min=5, max=210, avg=28.72, stdev=26.15 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 18], 50.00th=[ 20], 60.00th=[ 24], | 70.00th=[ 29], 80.00th=[ 35], 90.00th=[ 61], 95.00th=[ 88], | 99.00th=[ 136], 99.50th=[ 167], 99.90th=[ 211], 99.95th=[ 211], | 99.99th=[ 211] bw ( KiB/s): min= 31, max= 349, per=27.95%, avg=118.21, stdev=73.72, samples=100 iops : min= 1, max= 21, avg= 6.67, stdev= 4.63, samples=100 write: IOPS=7, BW=114KiB/s (116kB/s)(6256KiB/55092msec); 0 zone resets clat (msec): min=39, max=333, avg=112.67, stdev=44.88 lat (msec): min=39, max=333, avg=112.68, stdev=44.88 clat percentiles (msec): | 1.00th=[ 46], 5.00th=[ 56], 10.00th=[ 65], 20.00th=[ 78], | 30.00th=[ 86], 40.00th=[ 93], 50.00th=[ 103], 60.00th=[ 113], | 70.00th=[ 127], 80.00th=[ 146], 90.00th=[ 180], 95.00th=[ 201], | 99.00th=[ 241], 99.50th=[ 330], 99.90th=[ 334], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 31, max= 192, per=25.44%, avg=113.20, stdev=43.24, samples=109 iops : min= 1, max= 12, avg= 6.35, stdev= 2.81, samples=109 lat (msec) : 10=2.60%, 20=22.27%, 50=19.01%, 100=28.13%, 250=27.60% lat (msec) : 500=0.39% cpu : usr=0.06%, sys=1.62%, ctx=1298, 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=424KiB/s (434kB/s), 102KiB/s-116KiB/s (104kB/s-119kB/s), io=23.4MiB (24.5MB), run=53931-56552msec WRITE: bw=446KiB/s (456kB/s), 112KiB/s-116KiB/s (115kB/s-118kB/s), io=24.6MiB (25.8MB), run=53931-56552msec 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=146880: Thu Aug 27 11:46:54 2026 read: IOPS=2, BW=2551KiB/s (2612kB/s)(7168KiB/2810msec) clat (msec): min=46, max=352, avg=139.27, stdev=102.64 lat (msec): min=46, max=352, avg=139.27, stdev=102.64 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 47], 10.00th=[ 47], 20.00th=[ 74], | 30.00th=[ 87], 40.00th=[ 87], 50.00th=[ 108], 60.00th=[ 134], | 70.00th=[ 134], 80.00th=[ 176], 90.00th=[ 351], 95.00th=[ 351], | 99.00th=[ 351], 99.50th=[ 351], 99.90th=[ 351], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 2011, max= 4243, per=82.52%, avg=3447.00, stdev=1246.06, samples=3 iops : min= 1, max= 4, avg= 2.67, stdev= 1.53, samples=3 write: IOPS=1, BW=1822KiB/s (1866kB/s)(5120KiB/2810msec); 0 zone resets clat (msec): min=119, max=561, avg=356.56, stdev=167.57 lat (msec): min=120, max=562, avg=356.66, stdev=167.54 clat percentiles (msec): | 1.00th=[ 121], 5.00th=[ 121], 10.00th=[ 121], 20.00th=[ 121], | 30.00th=[ 300], 40.00th=[ 300], 50.00th=[ 338], 60.00th=[ 338], | 70.00th=[ 460], 80.00th=[ 460], 90.00th=[ 558], 95.00th=[ 558], | 99.00th=[ 558], 99.50th=[ 558], 99.90th=[ 558], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 2031, max= 4023, per=43.31%, avg=2533.00, stdev=993.35, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (msec) : 50=8.33%, 100=16.67%, 250=33.33%, 500=33.33%, 750=8.33% cpu : usr=0.00%, sys=5.12%, ctx=76, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=146881: Thu Aug 27 11:46:54 2026 read: IOPS=0, BW=418KiB/s (428kB/s)(2048KiB/4902msec) clat (msec): min=88, max=108, avg=98.51, stdev=14.48 lat (msec): min=88, max=108, avg=98.51, stdev=14.48 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 89], 10.00th=[ 89], 20.00th=[ 89], | 30.00th=[ 89], 40.00th=[ 89], 50.00th=[ 89], 60.00th=[ 109], | 70.00th=[ 109], 80.00th=[ 109], 90.00th=[ 109], 95.00th=[ 109], | 99.00th=[ 109], 99.50th=[ 109], 99.90th=[ 109], 99.95th=[ 109], | 99.99th=[ 109] bw ( KiB/s): min= 1376, max= 2019, per=40.64%, avg=1697.50, stdev=454.67, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2089KiB/s (2139kB/s)(10.0MiB/4902msec); 0 zone resets clat (msec): min=174, max=1218, avg=462.69, stdev=316.94 lat (msec): min=174, max=1218, avg=462.77, stdev=316.94 clat percentiles (msec): | 1.00th=[ 176], 5.00th=[ 176], 10.00th=[ 176], 20.00th=[ 222], | 30.00th=[ 241], 40.00th=[ 288], 50.00th=[ 305], 60.00th=[ 418], | 70.00th=[ 443], 80.00th=[ 600], 90.00th=[ 718], 95.00th=[ 1217], | 99.00th=[ 1217], 99.50th=[ 1217], 99.90th=[ 1217], 99.95th=[ 1217], | 99.99th=[ 1217] bw ( KiB/s): min= 1376, max= 4096, per=42.24%, avg=2470.86, stdev=1009.25, samples=7 iops : min= 1, max= 4, avg= 1.71, stdev= 1.25, samples=7 lat (msec) : 100=8.33%, 250=33.33%, 500=33.33%, 750=16.67%, 2000=8.33% cpu : usr=0.00%, sys=4.73%, ctx=71, 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=146882: Thu Aug 27 11:46:54 2026 read: IOPS=1, BW=1344KiB/s (1376kB/s)(6144KiB/4573msec) clat (msec): min=114, max=845, avg=376.20, stdev=341.60 lat (msec): min=114, max=845, avg=376.20, stdev=341.60 clat percentiles (msec): | 1.00th=[ 114], 5.00th=[ 114], 10.00th=[ 114], 20.00th=[ 122], | 30.00th=[ 122], 40.00th=[ 165], 50.00th=[ 165], 60.00th=[ 232], | 70.00th=[ 785], 80.00th=[ 785], 90.00th=[ 844], 95.00th=[ 844], | 99.00th=[ 844], 99.50th=[ 844], 99.90th=[ 844], 99.95th=[ 844], | 99.99th=[ 844] bw ( KiB/s): min= 2019, max= 4087, per=60.98%, avg=2547.25, stdev=1026.57, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 write: IOPS=1, BW=1344KiB/s (1376kB/s)(6144KiB/4573msec); 0 zone resets clat (msec): min=169, max=805, avg=375.95, stdev=234.92 lat (msec): min=169, max=808, avg=376.49, stdev=235.93 clat percentiles (msec): | 1.00th=[ 169], 5.00th=[ 169], 10.00th=[ 169], 20.00th=[ 197], | 30.00th=[ 197], 40.00th=[ 262], 50.00th=[ 262], 60.00th=[ 393], | 70.00th=[ 435], 80.00th=[ 435], 90.00th=[ 802], 95.00th=[ 802], | 99.00th=[ 802], 99.50th=[ 802], 99.90th=[ 802], 99.95th=[ 802], | 99.99th=[ 802] bw ( KiB/s): min= 2031, max= 4248, per=47.46%, avg=2775.67, stdev=1275.11, samples=3 iops : min= 1, max= 4, avg= 2.33, stdev= 1.53, samples=3 lat (msec) : 250=50.00%, 500=25.00%, 1000=25.00% cpu : usr=0.02%, sys=3.11%, ctx=57, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=146883: Thu Aug 27 11:46:54 2026 read: IOPS=1, BW=1338KiB/s (1370kB/s)(5120KiB/3827msec) clat (msec): min=91, max=505, avg=216.49, stdev=171.01 lat (msec): min=91, max=505, avg=216.49, stdev=171.01 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 92], 10.00th=[ 92], 20.00th=[ 92], | 30.00th=[ 104], 40.00th=[ 104], 50.00th=[ 150], 60.00th=[ 150], | 70.00th=[ 232], 80.00th=[ 232], 90.00th=[ 506], 95.00th=[ 506], | 99.00th=[ 506], 99.50th=[ 506], 99.90th=[ 506], 99.95th=[ 506], | 99.99th=[ 506] bw ( KiB/s): min= 2019, max= 4023, per=64.46%, avg=2692.33, stdev=1152.42, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=1, BW=1873KiB/s (1918kB/s)(7168KiB/3827msec); 0 zone resets clat (msec): min=167, max=758, avg=388.34, stdev=224.46 lat (msec): min=168, max=758, avg=388.42, stdev=224.44 clat percentiles (msec): | 1.00th=[ 169], 5.00th=[ 169], 10.00th=[ 169], 20.00th=[ 257], | 30.00th=[ 279], 40.00th=[ 279], 50.00th=[ 296], 60.00th=[ 305], | 70.00th=[ 305], 80.00th=[ 659], 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= 2011, max= 4063, per=44.20%, avg=2585.20, stdev=890.24, samples=5 iops : min= 1, max= 3, avg= 1.60, stdev= 0.89, samples=5 lat (msec) : 100=8.33%, 250=33.33%, 500=33.33%, 750=16.67%, 1000=8.33% cpu : usr=0.00%, sys=4.08%, ctx=51, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=4178KiB/s (4278kB/s), 418KiB/s-2551KiB/s (428kB/s-2612kB/s), io=20.0MiB (20.0MB), run=2810-4902msec WRITE: bw=5849KiB/s (5989kB/s), 1344KiB/s-2089KiB/s (1376kB/s-2139kB/s), io=28.0MiB (29.4MB), run=2810-4902msec rand-rw: (groupid=0, jobs=1): err= 0: pid=146885: Thu Aug 27 11:46:54 2026 read: IOPS=2, BW=2219KiB/s (2272kB/s)(7168KiB/3230msec) clat (usec): min=858, max=297251, avg=193578.36, stdev=98285.56 lat (usec): min=859, max=297252, avg=193579.62, stdev=98285.64 clat percentiles (usec): | 1.00th=[ 857], 5.00th=[ 857], 10.00th=[ 857], 20.00th=[160433], | 30.00th=[175113], 40.00th=[175113], 50.00th=[208667], 60.00th=[238027], | 70.00th=[238027], 80.00th=[274727], 90.00th=[295699], 95.00th=[295699], | 99.00th=[295699], 99.50th=[295699], 99.90th=[295699], 99.95th=[295699], | 99.99th=[295699] bw ( KiB/s): min= 1793, max= 4039, per=68.68%, avg=2945.50, stdev=1196.24, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 write: IOPS=1, BW=1585KiB/s (1623kB/s)(5120KiB/3230msec); 0 zone resets clat (msec): min=242, max=545, avg=374.59, stdev=119.26 lat (msec): min=242, max=545, avg=374.66, stdev=119.26 clat percentiles (msec): | 1.00th=[ 243], 5.00th=[ 243], 10.00th=[ 243], 20.00th=[ 243], | 30.00th=[ 284], 40.00th=[ 284], 50.00th=[ 388], 60.00th=[ 388], | 70.00th=[ 414], 80.00th=[ 414], 90.00th=[ 550], 95.00th=[ 550], | 99.00th=[ 550], 99.50th=[ 550], 99.90th=[ 550], 99.95th=[ 550], | 99.99th=[ 550] bw ( KiB/s): min= 1976, max= 4071, per=44.77%, avg=2688.67, stdev=1197.33, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (usec) : 1000=8.33% lat (msec) : 250=41.67%, 500=41.67%, 750=8.33% cpu : usr=0.03%, sys=16.88%, ctx=250, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=146886: Thu Aug 27 11:46:54 2026 read: IOPS=0, BW=429KiB/s (439kB/s)(2048KiB/4774msec) clat (usec): min=555, max=574330, avg=287442.83, stdev=405720.46 lat (usec): min=556, max=574332, avg=287444.20, stdev=405720.74 clat percentiles (usec): | 1.00th=[ 553], 5.00th=[ 553], 10.00th=[ 553], 20.00th=[ 553], | 30.00th=[ 553], 40.00th=[ 553], 50.00th=[ 553], 60.00th=[574620], | 70.00th=[574620], 80.00th=[574620], 90.00th=[574620], 95.00th=[574620], | 99.00th=[574620], 99.50th=[574620], 99.90th=[574620], 99.95th=[574620], | 99.99th=[574620] bw ( KiB/s): min= 1957, max= 2035, per=46.54%, avg=1996.00, stdev=55.15, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2145KiB/s (2196kB/s)(10.0MiB/4774msec); 0 zone resets clat (msec): min=100, max=831, avg=418.90, stdev=280.92 lat (msec): min=100, max=831, avg=419.02, stdev=280.99 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 101], 10.00th=[ 101], 20.00th=[ 153], | 30.00th=[ 174], 40.00th=[ 188], 50.00th=[ 215], 60.00th=[ 542], | 70.00th=[ 550], 80.00th=[ 693], 90.00th=[ 743], 95.00th=[ 835], | 99.00th=[ 835], 99.50th=[ 835], 99.90th=[ 835], 99.95th=[ 835], | 99.99th=[ 835] bw ( KiB/s): min= 2011, max= 4079, per=53.73%, avg=3226.60, stdev=1107.16, samples=5 iops : min= 1, max= 3, avg= 2.20, stdev= 1.10, samples=5 lat (usec) : 750=8.33% lat (msec) : 250=41.67%, 750=41.67%, 1000=8.33% cpu : usr=0.00%, sys=11.31%, ctx=134, 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=146887: Thu Aug 27 11:46:54 2026 read: IOPS=1, BW=1311KiB/s (1342kB/s)(6144KiB/4687msec) clat (msec): min=123, max=524, avg=277.29, stdev=176.53 lat (msec): min=123, max=524, avg=277.29, stdev=176.53 clat percentiles (msec): | 1.00th=[ 125], 5.00th=[ 125], 10.00th=[ 125], 20.00th=[ 153], | 30.00th=[ 153], 40.00th=[ 174], 50.00th=[ 174], 60.00th=[ 211], | 70.00th=[ 481], 80.00th=[ 481], 90.00th=[ 527], 95.00th=[ 527], | 99.00th=[ 527], 99.50th=[ 527], 99.90th=[ 527], 99.95th=[ 527], | 99.99th=[ 527] bw ( KiB/s): min= 1976, max= 2035, per=46.99%, avg=2015.20, stdev=24.25, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 write: IOPS=1, BW=1311KiB/s (1342kB/s)(6144KiB/4687msec); 0 zone resets clat (msec): min=176, max=949, avg=503.11, stdev=312.89 lat (msec): min=176, max=952, avg=503.64, stdev=313.69 clat percentiles (msec): | 1.00th=[ 176], 5.00th=[ 176], 10.00th=[ 176], 20.00th=[ 234], | 30.00th=[ 234], 40.00th=[ 326], 50.00th=[ 326], 60.00th=[ 558], | 70.00th=[ 785], 80.00th=[ 785], 90.00th=[ 953], 95.00th=[ 953], | 99.00th=[ 953], 99.50th=[ 953], 99.90th=[ 953], 99.95th=[ 953], | 99.99th=[ 953] bw ( KiB/s): min= 1976, max= 3683, per=39.06%, avg=2345.60, stdev=747.98, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (msec) : 250=50.00%, 500=16.67%, 750=16.67%, 1000=16.67% cpu : usr=0.00%, sys=10.43%, ctx=209, 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=146888: Thu Aug 27 11:46:54 2026 read: IOPS=1, BW=1135KiB/s (1162kB/s)(5120KiB/4513msec) clat (usec): min=1033, max=582405, avg=212721.01, stdev=239514.86 lat (usec): min=1034, max=582407, avg=212722.20, stdev=239514.99 clat percentiles (usec): | 1.00th=[ 1037], 5.00th=[ 1037], 10.00th=[ 1037], 20.00th=[ 1037], | 30.00th=[ 3163], 40.00th=[ 3163], 50.00th=[202376], 60.00th=[202376], | 70.00th=[274727], 80.00th=[274727], 90.00th=[583009], 95.00th=[583009], | 99.00th=[583009], 99.50th=[583009], 99.90th=[583009], 99.95th=[583009], | 99.99th=[583009] bw ( KiB/s): min= 2035, max= 4063, per=63.21%, avg=2711.00, stdev=1170.87, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=1, BW=1588KiB/s (1626kB/s)(7168KiB/4513msec); 0 zone resets clat (msec): min=190, max=785, avg=491.99, stdev=236.14 lat (msec): min=190, max=785, avg=492.60, stdev=236.00 clat percentiles (msec): | 1.00th=[ 190], 5.00th=[ 190], 10.00th=[ 190], 20.00th=[ 259], | 30.00th=[ 368], 40.00th=[ 368], 50.00th=[ 489], 60.00th=[ 584], | 70.00th=[ 584], 80.00th=[ 776], 90.00th=[ 785], 95.00th=[ 785], | 99.00th=[ 785], 99.50th=[ 785], 99.90th=[ 785], 99.95th=[ 785], | 99.99th=[ 785] bw ( KiB/s): min= 1822, max= 2035, per=32.79%, avg=1968.80, stdev=87.14, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 2=8.33%, 4=8.33%, 250=16.67%, 500=33.33%, 750=16.67% lat (msec) : 1000=16.67% cpu : usr=0.00%, sys=9.38%, ctx=192, 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=4290KiB/s (4393kB/s), 429KiB/s-2219KiB/s (439kB/s-2272kB/s), io=20.0MiB (20.0MB), run=3230-4774msec WRITE: bw=6006KiB/s (6150kB/s), 1311KiB/s-2145KiB/s (1342kB/s-2196kB/s), io=28.0MiB (29.4MB), run=3230-4774msec 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=146894: Thu Aug 27 11:47:10 2026 read: IOPS=0, BW=2360KiB/s (2417kB/s)(12.0MiB/5206msec) clat (msec): min=729, max=3418, avg=1665.66, stdev=1519.52 lat (msec): min=729, max=3418, avg=1665.66, stdev=1519.52 clat percentiles (msec): | 1.00th=[ 726], 5.00th=[ 726], 10.00th=[ 726], 20.00th=[ 726], | 30.00th=[ 726], 40.00th=[ 852], 50.00th=[ 852], 60.00th=[ 852], | 70.00th=[ 3406], 80.00th=[ 3406], 90.00th=[ 3406], 95.00th=[ 3406], | 99.00th=[ 3406], 99.50th=[ 3406], 99.90th=[ 3406], 99.95th=[ 3406], | 99.99th=[ 3406] bw ( KiB/s): min= 8159, max= 8175, per=100.00%, avg=8167.00, stdev=11.31, 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=11.68%, ctx=870, 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=146895: Thu Aug 27 11:47:10 2026 read: IOPS=0, BW=803KiB/s (823kB/s)(4096KiB/5098msec) clat (nsec): min=870159k, max=870159k, avg=870158690.00, stdev= 0.00 lat (nsec): min=870161k, max=870161k, avg=870161095.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 869], 5.00th=[ 869], 10.00th=[ 869], 20.00th=[ 869], | 30.00th=[ 869], 40.00th=[ 869], 50.00th=[ 869], 60.00th=[ 869], | 70.00th=[ 869], 80.00th=[ 869], 90.00th=[ 869], 95.00th=[ 869], | 99.00th=[ 869], 99.50th=[ 869], 99.90th=[ 869], 99.95th=[ 869], | 99.99th=[ 869] bw ( KiB/s): min= 8175, max= 8175, per=100.00%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=1607KiB/s (1645kB/s)(8192KiB/5098msec); 0 zone resets clat (msec): min=936, max=3137, avg=2037.21, stdev=1556.06 lat (msec): min=937, max=3137, avg=2037.55, stdev=1556.02 clat percentiles (msec): | 1.00th=[ 936], 5.00th=[ 936], 10.00th=[ 936], 20.00th=[ 936], | 30.00th=[ 936], 40.00th=[ 936], 50.00th=[ 936], 60.00th=[ 3138], | 70.00th=[ 3138], 80.00th=[ 3138], 90.00th=[ 3138], 95.00th=[ 3138], | 99.00th=[ 3138], 99.50th=[ 3138], 99.90th=[ 3138], 99.95th=[ 3138], | 99.99th=[ 3138] bw ( KiB/s): min= 8159, max= 8159, per=100.00%, avg=8159.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 1000=66.67%, >=2000=33.33% cpu : usr=0.00%, sys=4.69%, ctx=102, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=146896: Thu Aug 27 11:47:10 2026 write: IOPS=0, BW=2116KiB/s (2167kB/s)(12.0MiB/5806msec); 0 zone resets clat (msec): min=690, max=3822, avg=1864.37, stdev=1707.22 lat (msec): min=690, max=3823, avg=1864.86, stdev=1707.60 clat percentiles (msec): | 1.00th=[ 693], 5.00th=[ 693], 10.00th=[ 693], 20.00th=[ 693], | 30.00th=[ 693], 40.00th=[ 1083], 50.00th=[ 1083], 60.00th=[ 1083], | 70.00th=[ 3809], 80.00th=[ 3809], 90.00th=[ 3809], 95.00th=[ 3809], | 99.00th=[ 3809], 99.50th=[ 3809], 99.90th=[ 3809], 99.95th=[ 3809], | 99.99th=[ 3809] bw ( KiB/s): min= 8126, max= 8143, per=100.00%, avg=8134.50, stdev=12.02, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=4.15%, ctx=100, 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=146897: Thu Aug 27 11:47:10 2026 write: IOPS=0, BW=2406KiB/s (2463kB/s)(12.0MiB/5108msec); 0 zone resets clat (msec): min=322, max=4213, avg=1661.54, stdev=2210.96 lat (msec): min=323, max=4213, avg=1662.33, stdev=2210.54 clat percentiles (msec): | 1.00th=[ 321], 5.00th=[ 321], 10.00th=[ 321], 20.00th=[ 321], | 30.00th=[ 321], 40.00th=[ 451], 50.00th=[ 451], 60.00th=[ 451], | 70.00th=[ 4212], 80.00th=[ 4212], 90.00th=[ 4212], 95.00th=[ 4212], | 99.00th=[ 4212], 99.50th=[ 4212], 99.90th=[ 4212], 99.95th=[ 4212], | 99.99th=[ 4212] bw ( KiB/s): min= 5680, max= 8175, per=100.00%, avg=6927.50, stdev=1764.23, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=66.67%, >=2000=33.33% cpu : usr=0.00%, sys=3.66%, ctx=53, 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=3147KiB/s (3223kB/s), 803KiB/s-2360KiB/s (823kB/s-2417kB/s), io=16.0MiB (16.8MB), run=5098-5206msec WRITE: bw=5644KiB/s (5779kB/s), 1607KiB/s-2406KiB/s (1645kB/s-2463kB/s), io=32.0MiB (33.6MB), run=5098-5806msec rand-rw: (groupid=0, jobs=1): err= 0: pid=146899: Thu Aug 27 11:47:10 2026 read: IOPS=0, BW=2307KiB/s (2362kB/s)(12.0MiB/5327msec) clat (msec): min=501, max=3994, avg=1774.81, stdev=1929.29 lat (msec): min=501, max=3994, avg=1774.81, stdev=1929.29 clat percentiles (msec): | 1.00th=[ 502], 5.00th=[ 502], 10.00th=[ 502], 20.00th=[ 502], | 30.00th=[ 502], 40.00th=[ 827], 50.00th=[ 827], 60.00th=[ 827], | 70.00th=[ 4010], 80.00th=[ 4010], 90.00th=[ 4010], 95.00th=[ 4010], | 99.00th=[ 4010], 99.50th=[ 4010], 99.90th=[ 4010], 99.95th=[ 4010], | 99.99th=[ 4010] bw ( KiB/s): min= 8143, max= 8175, per=100.00%, avg=8159.00, stdev=22.63, 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=1.86%, ctx=43, 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=146901: Thu Aug 27 11:47:10 2026 read: IOPS=0, BW=809KiB/s (828kB/s)(4096KiB/5065msec) clat (nsec): min=3686.5M, max=3686.5M, avg=3686497223.00, stdev= 0.00 lat (nsec): min=3686.5M, max=3686.5M, avg=3686498649.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 3675], 5.00th=[ 3675], 10.00th=[ 3675], 20.00th=[ 3675], | 30.00th=[ 3675], 40.00th=[ 3675], 50.00th=[ 3675], 60.00th=[ 3675], | 70.00th=[ 3675], 80.00th=[ 3675], 90.00th=[ 3675], 95.00th=[ 3675], | 99.00th=[ 3675], 99.50th=[ 3675], 99.90th=[ 3675], 99.95th=[ 3675], | 99.99th=[ 3675] bw ( KiB/s): min= 8047, max= 8047, per=100.00%, avg=8047.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=1617KiB/s (1656kB/s)(8192KiB/5065msec); 0 zone resets clat (msec): min=405, max=971, avg=688.49, stdev=400.45 lat (msec): min=405, max=971, avg=688.81, stdev=400.47 clat percentiles (msec): | 1.00th=[ 405], 5.00th=[ 405], 10.00th=[ 405], 20.00th=[ 405], | 30.00th=[ 405], 40.00th=[ 405], 50.00th=[ 405], 60.00th=[ 969], | 70.00th=[ 969], 80.00th=[ 969], 90.00th=[ 969], 95.00th=[ 969], | 99.00th=[ 969], 99.50th=[ 969], 99.90th=[ 969], 99.95th=[ 969], | 99.99th=[ 969] bw ( KiB/s): min= 8175, max= 8175, per=100.00%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 1000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=3.40%, ctx=51, 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=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=146902: Thu Aug 27 11:47:10 2026 write: IOPS=0, BW=2292KiB/s (2347kB/s)(12.0MiB/5362msec); 0 zone resets clat (msec): min=518, max=3593, avg=1761.24, stdev=1620.17 lat (msec): min=518, max=3593, avg=1761.57, stdev=1620.18 clat percentiles (msec): | 1.00th=[ 518], 5.00th=[ 518], 10.00th=[ 518], 20.00th=[ 518], | 30.00th=[ 518], 40.00th=[ 1167], 50.00th=[ 1167], 60.00th=[ 1167], | 70.00th=[ 3608], 80.00th=[ 3608], 90.00th=[ 3608], 95.00th=[ 3608], | 99.00th=[ 3608], 99.50th=[ 3608], 99.90th=[ 3608], 99.95th=[ 3608], | 99.99th=[ 3608] bw ( KiB/s): min= 8047, max= 8192, per=100.00%, avg=8119.50, stdev=102.53, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 750=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.02%, sys=2.31%, ctx=47, 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=146903: Thu Aug 27 11:47:10 2026 write: IOPS=0, BW=2585KiB/s (2647kB/s)(12.0MiB/4754msec); 0 zone resets clat (msec): min=288, max=3167, avg=1583.45, stdev=1460.84 lat (msec): min=288, max=3167, avg=1584.01, stdev=1460.80 clat percentiles (msec): | 1.00th=[ 288], 5.00th=[ 288], 10.00th=[ 288], 20.00th=[ 288], | 30.00th=[ 288], 40.00th=[ 1301], 50.00th=[ 1301], 60.00th=[ 1301], | 70.00th=[ 3171], 80.00th=[ 3171], 90.00th=[ 3171], 95.00th=[ 3171], | 99.00th=[ 3171], 99.50th=[ 3171], 99.90th=[ 3171], 99.95th=[ 3171], | 99.99th=[ 3171] bw ( KiB/s): min= 8110, max= 8126, per=100.00%, avg=8118.00, stdev=11.31, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=2.82%, ctx=42, 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=3076KiB/s (3149kB/s), 809KiB/s-2307KiB/s (828kB/s-2362kB/s), io=16.0MiB (16.8MB), run=5065-5327msec WRITE: bw=6111KiB/s (6258kB/s), 1617KiB/s-2585KiB/s (1656kB/s-2647kB/s), io=32.0MiB (33.6MB), run=4754-5362msec