== sanity test 398b: DIO and buffer IO race ============== 09:55:49 (1774878949) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 5.08523 s, 9.9 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=148887: Mon Mar 30 09:58:22 2026 read: IOPS=11, BW=45.7KiB/s (46.8kB/s)(5992KiB/131121msec) clat (usec): min=21, max=408675, avg=43885.74, stdev=32445.52 lat (usec): min=22, max=408675, avg=43889.39, stdev=32448.12 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 65], 10.00th=[ 6718], 20.00th=[ 21103], | 30.00th=[ 26346], 40.00th=[ 32637], 50.00th=[ 38536], 60.00th=[ 44827], | 70.00th=[ 53740], 80.00th=[ 65799], 90.00th=[ 83362], 95.00th=[100140], | 99.00th=[143655], 99.50th=[156238], 99.90th=[341836], 99.95th=[408945], | 99.99th=[408945] bw ( KiB/s): min= 7, max= 102, per=25.52%, avg=45.16, stdev=19.39, samples=259 iops : min= 1, max= 25, avg=10.64, stdev= 4.92, samples=259 write: IOPS=12, BW=48.0KiB/s (49.2kB/s)(6296KiB/131121msec); 0 zone resets clat (usec): min=1186, max=284547, avg=41359.94, stdev=41437.79 lat (usec): min=1188, max=284548, avg=41369.75, stdev=41432.14 clat percentiles (usec): | 1.00th=[ 1254], 5.00th=[ 1467], 10.00th=[ 2212], 20.00th=[ 5669], | 30.00th=[ 10814], 40.00th=[ 21365], 50.00th=[ 31327], 60.00th=[ 42730], | 70.00th=[ 53740], 80.00th=[ 69731], 90.00th=[ 93848], 95.00th=[116917], | 99.00th=[204473], 99.50th=[221250], 99.90th=[274727], 99.95th=[283116], | 99.99th=[283116] bw ( KiB/s): min= 7, max= 139, per=25.63%, avg=47.42, stdev=20.85, samples=259 iops : min= 1, max= 34, avg=11.20, stdev= 5.22, samples=259 lat (usec) : 50=0.36%, 100=3.61%, 250=0.55%, 500=0.16%, 750=0.07% lat (usec) : 1000=0.03% lat (msec) : 2=4.72%, 4=3.03%, 10=7.10%, 20=9.24%, 50=37.79% lat (msec) : 100=26.73%, 250=6.48%, 500=0.13% cpu : usr=0.09%, sys=5.61%, ctx=6946, 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=148888: Mon Mar 30 09:58:22 2026 read: IOPS=10, BW=43.9KiB/s (44.9kB/s)(5940KiB/135434msec) clat (usec): min=32, max=356585, avg=42578.67, stdev=33245.96 lat (usec): min=32, max=356586, avg=42580.55, stdev=33247.74 clat percentiles (usec): | 1.00th=[ 46], 5.00th=[ 63], 10.00th=[ 110], 20.00th=[ 18744], | 30.00th=[ 24773], 40.00th=[ 30016], 50.00th=[ 36439], 60.00th=[ 43254], | 70.00th=[ 52167], 80.00th=[ 62653], 90.00th=[ 82314], 95.00th=[101188], | 99.00th=[156238], 99.50th=[177210], 99.90th=[287310], 99.95th=[358613], | 99.99th=[358613] bw ( KiB/s): min= 6, max= 127, per=24.90%, avg=44.06, stdev=20.58, samples=262 iops : min= 1, max= 31, avg=10.36, stdev= 5.19, samples=262 write: IOPS=11, BW=46.9KiB/s (47.0kB/s)(6348KiB/135434msec); 0 zone resets clat (usec): min=1073, max=403986, avg=45363.27, stdev=47884.73 lat (usec): min=1074, max=403988, avg=45368.61, stdev=47885.00 clat percentiles (usec): | 1.00th=[ 1254], 5.00th=[ 1450], 10.00th=[ 2147], 20.00th=[ 5080], | 30.00th=[ 11338], 40.00th=[ 21103], 50.00th=[ 32900], 60.00th=[ 44303], | 70.00th=[ 57410], 80.00th=[ 76022], 90.00th=[105382], 95.00th=[137364], | 99.00th=[208667], 99.50th=[278922], 99.90th=[333448], 99.95th=[404751], | 99.99th=[404751] bw ( KiB/s): min= 7, max= 136, per=24.94%, avg=46.14, stdev=23.01, samples=267 iops : min= 1, max= 34, avg=10.88, stdev= 5.79, samples=267 lat (usec) : 50=0.59%, 100=4.07%, 250=0.55%, 500=0.03%, 1000=0.03% lat (msec) : 2=5.08%, 4=4.10%, 10=5.76%, 20=10.48%, 50=35.74% lat (msec) : 100=25.03%, 250=8.14%, 500=0.39% cpu : usr=0.08%, sys=5.45%, ctx=6831, 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=148889: Mon Mar 30 09:58:22 2026 read: IOPS=11, BW=45.7KiB/s (46.8kB/s)(6028KiB/131992msec) clat (usec): min=34, max=311937, avg=43252.94, stdev=32348.19 lat (usec): min=35, max=311938, avg=43257.37, stdev=32347.77 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 67], 10.00th=[ 898], 20.00th=[ 20317], | 30.00th=[ 25822], 40.00th=[ 31851], 50.00th=[ 37487], 60.00th=[ 43779], | 70.00th=[ 52691], 80.00th=[ 62653], 90.00th=[ 79168], 95.00th=[101188], | 99.00th=[156238], 99.50th=[175113], 99.90th=[258999], 99.95th=[312476], | 99.99th=[312476] bw ( KiB/s): min= 7, max= 111, per=25.59%, avg=45.30, stdev=20.44, samples=259 iops : min= 1, max= 27, avg=10.67, stdev= 5.16, samples=259 write: IOPS=11, BW=47.4KiB/s (48.6kB/s)(6260KiB/131992msec); 0 zone resets clat (usec): min=1072, max=702401, avg=42552.57, stdev=44587.66 lat (usec): min=1073, max=702403, avg=42557.93, stdev=44586.70 clat percentiles (usec): | 1.00th=[ 1270], 5.00th=[ 1500], 10.00th=[ 2671], 20.00th=[ 5669], | 30.00th=[ 10814], 40.00th=[ 21627], 50.00th=[ 32375], 60.00th=[ 42730], | 70.00th=[ 55837], 80.00th=[ 70779], 90.00th=[ 98042], 95.00th=[121111], | 99.00th=[177210], 99.50th=[212861], 99.90th=[354419], 99.95th=[700449], | 99.99th=[700449] bw ( KiB/s): min= 7, max= 103, per=25.30%, avg=46.80, stdev=20.20, samples=260 iops : min= 1, max= 25, avg=11.05, stdev= 5.10, samples=260 lat (usec) : 50=0.42%, 100=3.71%, 250=0.55%, 500=0.16%, 750=0.03% lat (usec) : 1000=0.03% lat (msec) : 2=4.17%, 4=3.55%, 10=7.49%, 20=8.79%, 50=37.21% lat (msec) : 100=26.60%, 250=7.10%, 500=0.16%, 750=0.03% cpu : usr=0.09%, sys=5.61%, ctx=6798, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=148890: Mon Mar 30 09:58:22 2026 read: IOPS=11, BW=46.3KiB/s (47.4kB/s)(6052KiB/130716msec) clat (usec): min=36, max=362267, avg=43240.14, stdev=32115.60 lat (usec): min=36, max=362269, avg=43242.16, stdev=32115.35 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 68], 10.00th=[ 9896], 20.00th=[ 20317], | 30.00th=[ 26608], 40.00th=[ 32637], 50.00th=[ 38536], 60.00th=[ 44827], | 70.00th=[ 52691], 80.00th=[ 62129], 90.00th=[ 79168], 95.00th=[ 96994], | 99.00th=[149947], 99.50th=[181404], 99.90th=[346031], 99.95th=[362808], | 99.99th=[362808] bw ( KiB/s): min= 7, max= 111, per=26.07%, avg=46.15, stdev=19.91, samples=256 iops : min= 1, max= 27, avg=10.88, stdev= 5.03, samples=256 write: IOPS=11, BW=47.7KiB/s (48.9kB/s)(6236KiB/130716msec); 0 zone resets clat (usec): min=1142, max=543223, avg=41695.06, stdev=42931.85 lat (usec): min=1144, max=543225, avg=41700.54, stdev=42930.03 clat percentiles (usec): | 1.00th=[ 1237], 5.00th=[ 1467], 10.00th=[ 2376], 20.00th=[ 5997], | 30.00th=[ 12518], 40.00th=[ 20579], 50.00th=[ 30278], 60.00th=[ 41157], | 70.00th=[ 53740], 80.00th=[ 70779], 90.00th=[ 94897], 95.00th=[116917], | 99.00th=[183501], 99.50th=[233833], 99.90th=[362808], 99.95th=[541066], | 99.99th=[541066] bw ( KiB/s): min= 7, max= 111, per=25.54%, avg=47.25, stdev=19.84, samples=257 iops : min= 1, max= 27, avg=11.16, stdev= 5.00, samples=257 lat (usec) : 50=0.36%, 100=3.45%, 250=0.46%, 500=0.10%, 750=0.03% lat (usec) : 1000=0.07% lat (msec) : 2=4.46%, 4=3.71%, 10=6.02%, 20=10.97%, 50=37.43% lat (msec) : 100=26.63%, 250=6.09%, 500=0.20%, 750=0.03% cpu : usr=0.08%, sys=5.58%, ctx=6862, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=177KiB/s (182kB/s), 43.9KiB/s-46.3KiB/s (44.9kB/s-47.4kB/s), io=23.4MiB (24.6MB), run=130716-135434msec WRITE: bw=186KiB/s (190kB/s), 46.9KiB/s-48.0KiB/s (47.0kB/s-49.2kB/s), io=24.6MiB (25.7MB), run=130716-135434msec rand-rw: (groupid=0, jobs=1): err= 0: pid=148881: Mon Mar 30 10:00:37 2026 read: IOPS=5, BW=22.1KiB/s (22.6kB/s)(5992KiB/271053msec) clat (msec): min=5, max=1275, avg=36.81, stdev=50.75 lat (msec): min=5, max=1275, avg=36.82, stdev=50.75 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=[ 27], | 70.00th=[ 34], 80.00th=[ 48], 90.00th=[ 79], 95.00th=[ 104], | 99.00th=[ 236], 99.50th=[ 268], 99.90th=[ 418], 99.95th=[ 1284], | 99.99th=[ 1284] bw ( KiB/s): min= 6, max= 103, per=28.56%, avg=25.14, stdev=17.50, samples=461 iops : min= 1, max= 25, avg= 5.66, stdev= 4.41, samples=461 write: IOPS=5, BW=23.2KiB/s (23.8kB/s)(6296KiB/271053msec); 0 zone resets clat (msec): min=35, max=660, avg=136.80, stdev=70.03 lat (msec): min=35, max=660, avg=136.81, stdev=70.03 clat percentiles (msec): | 1.00th=[ 52], 5.00th=[ 62], 10.00th=[ 68], 20.00th=[ 82], | 30.00th=[ 93], 40.00th=[ 104], 50.00th=[ 118], 60.00th=[ 136], | 70.00th=[ 157], 80.00th=[ 182], 90.00th=[ 234], 95.00th=[ 279], | 99.00th=[ 368], 99.50th=[ 414], 99.90th=[ 493], 99.95th=[ 659], | 99.99th=[ 659] bw ( KiB/s): min= 6, max= 56, per=25.09%, avg=23.09, stdev=11.24, samples=525 iops : min= 1, max= 14, avg= 5.14, stdev= 2.87, samples=525 lat (msec) : 10=2.38%, 20=18.72%, 50=19.04%, 100=25.10%, 250=30.53% lat (msec) : 500=4.17%, 750=0.03%, 2000=0.03% cpu : usr=0.04%, sys=1.40%, ctx=5370, 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=148882: Mon Mar 30 10:00:37 2026 read: IOPS=5, BW=21.8KiB/s (22.3kB/s)(5940KiB/272416msec) clat (msec): min=5, max=1106, avg=35.68, stdev=48.49 lat (msec): min=5, max=1106, avg=35.68, stdev=48.49 clat percentiles (msec): | 1.00th=[ 8], 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=[ 47], 90.00th=[ 73], 95.00th=[ 97], | 99.00th=[ 213], 99.50th=[ 321], 99.90th=[ 464], 99.95th=[ 1099], | 99.99th=[ 1099] bw ( KiB/s): min= 6, max= 95, per=29.16%, avg=25.66, stdev=17.22, samples=448 iops : min= 1, max= 23, avg= 5.79, stdev= 4.35, samples=448 write: IOPS=5, BW=23.3KiB/s (23.9kB/s)(6348KiB/272416msec); 0 zone resets clat (msec): min=39, max=590, avg=137.90, stdev=70.84 lat (msec): min=39, max=590, avg=137.90, stdev=70.84 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 62], 10.00th=[ 70], 20.00th=[ 82], | 30.00th=[ 92], 40.00th=[ 105], 50.00th=[ 117], 60.00th=[ 134], | 70.00th=[ 159], 80.00th=[ 188], 90.00th=[ 241], 95.00th=[ 279], | 99.00th=[ 376], 99.50th=[ 418], 99.90th=[ 468], 99.95th=[ 592], | 99.99th=[ 592] bw ( KiB/s): min= 6, max= 55, per=25.18%, avg=23.17, stdev=11.09, samples=528 iops : min= 1, max= 13, avg= 5.16, stdev= 2.83, samples=528 lat (msec) : 10=2.96%, 20=17.77%, 50=19.79%, 100=24.45%, 250=30.24% lat (msec) : 500=4.72%, 750=0.03%, 2000=0.03% cpu : usr=0.04%, sys=1.42%, ctx=5315, 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=148883: Mon Mar 30 10:00:37 2026 read: IOPS=5, BW=22.2KiB/s (22.7kB/s)(6028KiB/271411msec) clat (msec): min=5, max=470, avg=36.46, stdev=39.21 lat (msec): min=5, max=470, avg=36.46, stdev=39.21 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 17], 40.00th=[ 21], 50.00th=[ 24], 60.00th=[ 29], | 70.00th=[ 36], 80.00th=[ 51], 90.00th=[ 78], 95.00th=[ 106], | 99.00th=[ 197], 99.50th=[ 257], 99.90th=[ 443], 99.95th=[ 472], | 99.99th=[ 472] bw ( KiB/s): min= 7, max= 103, per=28.29%, avg=24.89, stdev=16.69, samples=468 iops : min= 1, max= 25, avg= 5.60, stdev= 4.22, samples=468 write: IOPS=5, BW=23.1KiB/s (23.6kB/s)(6260KiB/271411msec); 0 zone resets clat (msec): min=41, max=1139, avg=137.94, stdev=76.98 lat (msec): min=41, max=1139, avg=137.94, stdev=76.98 clat percentiles (msec): | 1.00th=[ 52], 5.00th=[ 63], 10.00th=[ 69], 20.00th=[ 81], | 30.00th=[ 93], 40.00th=[ 104], 50.00th=[ 115], 60.00th=[ 132], | 70.00th=[ 155], 80.00th=[ 190], 90.00th=[ 234], 95.00th=[ 275], | 99.00th=[ 397], 99.50th=[ 430], 99.90th=[ 760], 99.95th=[ 1133], | 99.99th=[ 1133] bw ( KiB/s): min= 7, max= 56, per=24.92%, avg=22.93, stdev=11.36, samples=526 iops : min= 1, max= 14, avg= 5.10, stdev= 2.89, samples=526 lat (msec) : 10=2.96%, 20=16.67%, 50=19.92%, 100=25.52%, 250=30.66% lat (msec) : 500=4.20%, 1000=0.03%, 2000=0.03% cpu : usr=0.04%, sys=1.42%, ctx=5408, 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=148884: Mon Mar 30 10:00:37 2026 read: IOPS=5, BW=22.6KiB/s (23.1kB/s)(6052KiB/267878msec) clat (msec): min=6, max=438, avg=35.84, stdev=39.45 lat (msec): min=6, max=438, avg=35.84, stdev=39.45 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 23], 60.00th=[ 27], | 70.00th=[ 34], 80.00th=[ 48], 90.00th=[ 77], 95.00th=[ 109], | 99.00th=[ 174], 99.50th=[ 288], 99.90th=[ 397], 99.95th=[ 439], | 99.99th=[ 439] bw ( KiB/s): min= 7, max= 119, per=29.50%, avg=25.96, stdev=18.48, samples=451 iops : min= 1, max= 29, avg= 5.86, stdev= 4.67, samples=451 write: IOPS=5, BW=23.3KiB/s (23.8kB/s)(6236KiB/267878msec); 0 zone resets clat (msec): min=39, max=1250, avg=136.70, stdev=77.02 lat (msec): min=39, max=1250, avg=136.71, stdev=77.02 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 61], 10.00th=[ 69], 20.00th=[ 82], | 30.00th=[ 92], 40.00th=[ 105], 50.00th=[ 117], 60.00th=[ 134], | 70.00th=[ 150], 80.00th=[ 180], 90.00th=[ 232], 95.00th=[ 279], | 99.00th=[ 388], 99.50th=[ 447], 99.90th=[ 743], 99.95th=[ 1250], | 99.99th=[ 1250] bw ( KiB/s): min= 7, max= 48, per=25.32%, avg=23.29, stdev=11.12, samples=516 iops : min= 1, max= 12, avg= 5.19, stdev= 2.83, samples=516 lat (msec) : 10=3.16%, 20=18.26%, 50=19.21%, 100=24.41%, 250=30.66% lat (msec) : 500=4.23%, 750=0.03%, 2000=0.03% cpu : usr=0.05%, sys=1.43%, ctx=5475, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=88.1KiB/s (90.3kB/s), 21.8KiB/s-22.6KiB/s (22.3kB/s-23.1kB/s), io=23.4MiB (24.6MB), run=267878-272416msec WRITE: bw=92.3KiB/s (94.5kB/s), 23.1KiB/s-23.3KiB/s (23.6kB/s-23.9kB/s), io=24.6MiB (25.7MB), run=267878-272416msec 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=148945: Mon Mar 30 10:01:16 2026 read: IOPS=13, BW=208KiB/s (213kB/s)(5920KiB/28438msec) clat (usec): min=41, max=222378, avg=39955.09, stdev=32840.71 lat (usec): min=42, max=222380, avg=39956.48, stdev=32840.72 clat percentiles (usec): | 1.00th=[ 51], 5.00th=[ 63], 10.00th=[ 74], 20.00th=[ 15401], | 30.00th=[ 22938], 40.00th=[ 28705], 50.00th=[ 35390], 60.00th=[ 42730], | 70.00th=[ 51643], 80.00th=[ 62653], 90.00th=[ 77071], 95.00th=[ 91751], | 99.00th=[166724], 99.50th=[219153], 99.90th=[223347], 99.95th=[223347], | 99.99th=[223347] bw ( KiB/s): min= 63, max= 384, per=23.99%, avg=202.04, stdev=70.97, samples=55 iops : min= 3, max= 24, avg=11.89, stdev= 4.63, samples=55 write: IOPS=13, BW=224KiB/s (229kB/s)(6368KiB/28438msec); 0 zone resets clat (usec): min=1632, max=189214, avg=33756.78, stdev=35278.25 lat (usec): min=1635, max=189216, avg=33773.17, stdev=35291.59 clat percentiles (usec): | 1.00th=[ 1745], 5.00th=[ 2212], 10.00th=[ 3490], 20.00th=[ 5669], | 30.00th=[ 8356], 40.00th=[ 14484], 50.00th=[ 22152], 60.00th=[ 30540], | 70.00th=[ 40633], 80.00th=[ 54789], 90.00th=[ 86508], 95.00th=[110625], | 99.00th=[168821], 99.50th=[183501], 99.90th=[189793], 99.95th=[189793], | 99.99th=[189793] bw ( KiB/s): min= 64, max= 444, per=24.98%, avg=221.29, stdev=86.09, samples=55 iops : min= 4, max= 27, avg=13.13, stdev= 5.41, samples=55 lat (usec) : 50=0.39%, 100=7.03%, 250=1.04%, 500=0.13% lat (msec) : 2=1.82%, 4=4.69%, 10=11.07%, 20=9.90%, 50=35.81% lat (msec) : 100=22.92%, 250=5.21% cpu : usr=0.11%, sys=6.61%, ctx=1646, 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=148946: Mon Mar 30 10:01:16 2026 read: IOPS=12, BW=204KiB/s (209kB/s)(5744KiB/28103msec) clat (usec): min=38, max=259868, avg=42442.12, stdev=32289.75 lat (usec): min=39, max=259870, avg=42463.96, stdev=32288.18 clat percentiles (usec): | 1.00th=[ 51], 5.00th=[ 68], 10.00th=[ 90], 20.00th=[ 20317], | 30.00th=[ 27657], 40.00th=[ 33162], 50.00th=[ 38011], 60.00th=[ 44303], | 70.00th=[ 53216], 80.00th=[ 64226], 90.00th=[ 77071], 95.00th=[ 90702], | 99.00th=[164627], 99.50th=[183501], 99.90th=[258999], 99.95th=[258999], | 99.99th=[258999] bw ( KiB/s): min= 44, max= 339, per=24.39%, avg=205.35, stdev=73.52, samples=55 iops : min= 2, max= 21, avg=12.11, stdev= 4.70, samples=55 write: IOPS=14, BW=233KiB/s (238kB/s)(6544KiB/28103msec); 0 zone resets clat (usec): min=1719, max=303995, avg=31214.20, stdev=33828.60 lat (usec): min=1721, max=303999, avg=31226.51, stdev=33824.42 clat percentiles (usec): | 1.00th=[ 1827], 5.00th=[ 2212], 10.00th=[ 3425], 20.00th=[ 6063], | 30.00th=[ 8848], 40.00th=[ 12649], 50.00th=[ 19530], 60.00th=[ 29492], | 70.00th=[ 39060], 80.00th=[ 54789], 90.00th=[ 71828], 95.00th=[ 93848], | 99.00th=[128451], 99.50th=[162530], 99.90th=[304088], 99.95th=[304088], | 99.99th=[304088] bw ( KiB/s): min= 63, max= 507, per=26.23%, avg=232.44, stdev=100.84, samples=55 iops : min= 3, max= 31, avg=13.82, stdev= 6.34, samples=55 lat (usec) : 50=0.26%, 100=4.95%, 250=1.04% lat (msec) : 2=1.69%, 4=6.25%, 10=10.81%, 20=11.20%, 50=35.94% lat (msec) : 100=24.35%, 250=3.26%, 500=0.26% cpu : usr=0.08%, sys=6.85%, ctx=1639, 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=148947: Mon Mar 30 10:01:16 2026 read: IOPS=14, BW=227KiB/s (233kB/s)(6256KiB/27510msec) clat (usec): min=38, max=246815, avg=39393.48, stdev=33442.18 lat (usec): min=39, max=246816, avg=39395.15, stdev=33441.90 clat percentiles (usec): | 1.00th=[ 44], 5.00th=[ 63], 10.00th=[ 73], 20.00th=[ 13435], | 30.00th=[ 23725], 40.00th=[ 28705], 50.00th=[ 35914], 60.00th=[ 41157], | 70.00th=[ 50070], 80.00th=[ 59507], 90.00th=[ 74974], 95.00th=[ 96994], | 99.00th=[156238], 99.50th=[240124], 99.90th=[246416], 99.95th=[246416], | 99.99th=[246416] bw ( KiB/s): min= 62, max= 473, per=27.17%, avg=228.74, stdev=96.57, samples=53 iops : min= 3, max= 29, avg=13.60, stdev= 6.14, samples=53 write: IOPS=13, BW=219KiB/s (225kB/s)(6032KiB/27510msec); 0 zone resets clat (usec): min=1580, max=371252, avg=31247.46, stdev=35534.85 lat (usec): min=1583, max=371254, avg=31252.05, stdev=35535.72 clat percentiles (usec): | 1.00th=[ 1795], 5.00th=[ 2212], 10.00th=[ 3982], 20.00th=[ 6259], | 30.00th=[ 8356], 40.00th=[ 11863], 50.00th=[ 19268], 60.00th=[ 26870], | 70.00th=[ 37487], 80.00th=[ 52167], 90.00th=[ 78119], 95.00th=[101188], | 99.00th=[135267], 99.50th=[141558], 99.90th=[371196], 99.95th=[371196], | 99.99th=[371196] bw ( KiB/s): min= 31, max= 411, per=24.95%, avg=221.06, stdev=85.83, samples=52 iops : min= 1, max= 25, avg=13.10, stdev= 5.45, samples=52 lat (usec) : 50=0.91%, 100=7.42%, 250=1.30%, 500=0.26%, 1000=0.13% lat (msec) : 2=1.56%, 4=3.39%, 10=12.37%, 20=9.90%, 50=36.85% lat (msec) : 100=21.09%, 250=4.69%, 500=0.13% cpu : usr=0.10%, sys=6.45%, ctx=1558, 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=148948: Mon Mar 30 10:01:16 2026 read: IOPS=13, BW=215KiB/s (220kB/s)(6032KiB/28095msec) clat (usec): min=44, max=374002, avg=41946.42, stdev=37919.02 lat (usec): min=44, max=374003, avg=41948.72, stdev=37919.41 clat percentiles (usec): | 1.00th=[ 57], 5.00th=[ 64], 10.00th=[ 72], 20.00th=[ 17171], | 30.00th=[ 26084], 40.00th=[ 32375], 50.00th=[ 36963], 60.00th=[ 45351], | 70.00th=[ 53216], 80.00th=[ 60556], 90.00th=[ 76022], 95.00th=[ 93848], | 99.00th=[198181], 99.50th=[295699], 99.90th=[375391], 99.95th=[375391], | 99.99th=[375391] bw ( KiB/s): min= 31, max= 380, per=25.37%, avg=213.62, stdev=73.39, samples=55 iops : min= 1, max= 23, avg=12.64, stdev= 4.64, samples=55 write: IOPS=13, BW=223KiB/s (228kB/s)(6256KiB/28095msec); 0 zone resets clat (usec): min=1602, max=164556, avg=30861.20, stdev=31983.44 lat (usec): min=1605, max=164557, avg=30889.59, stdev=32004.73 clat percentiles (usec): | 1.00th=[ 1696], 5.00th=[ 2180], 10.00th=[ 3392], 20.00th=[ 6587], | 30.00th=[ 8225], 40.00th=[ 11731], 50.00th=[ 19006], 60.00th=[ 27395], | 70.00th=[ 36439], 80.00th=[ 51643], 90.00th=[ 82314], 95.00th=[102237], | 99.00th=[139461], 99.50th=[147850], 99.90th=[164627], 99.95th=[164627], | 99.99th=[164627] bw ( KiB/s): min= 62, max= 491, per=25.21%, avg=223.35, stdev=88.46, samples=55 iops : min= 3, max= 30, avg=13.24, stdev= 5.61, samples=55 lat (usec) : 50=0.13%, 100=7.94%, 250=0.39%, 500=0.13% lat (msec) : 2=1.95%, 4=4.30%, 10=11.85%, 20=10.94%, 50=34.77% lat (msec) : 100=22.92%, 250=4.43%, 500=0.26% cpu : usr=0.13%, sys=6.83%, ctx=1559, 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=842KiB/s (862kB/s), 204KiB/s-227KiB/s (209kB/s-233kB/s), io=23.4MiB (24.5MB), run=27510-28438msec WRITE: bw=886KiB/s (907kB/s), 219KiB/s-233KiB/s (225kB/s-238kB/s), io=24.6MiB (25.8MB), run=27510-28438msec rand-rw: (groupid=0, jobs=1): err= 0: pid=148949: Mon Mar 30 10:01:52 2026 read: IOPS=5, BW=92.0KiB/s (94.2kB/s)(5920KiB/64320msec) clat (msec): min=7, max=233, avg=34.11, stdev=31.35 lat (msec): min=7, max=233, avg=34.11, stdev=31.35 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 23], 60.00th=[ 27], | 70.00th=[ 33], 80.00th=[ 43], 90.00th=[ 68], 95.00th=[ 106], | 99.00th=[ 163], 99.50th=[ 180], 99.90th=[ 234], 99.95th=[ 234], | 99.99th=[ 234] bw ( KiB/s): min= 30, max= 316, per=26.92%, avg=100.15, stdev=58.99, samples=116 iops : min= 1, max= 19, avg= 5.47, stdev= 3.70, samples=116 write: IOPS=6, BW=99.0KiB/s (101kB/s)(6368KiB/64320msec); 0 zone resets clat (msec): min=45, max=426, avg=129.36, stdev=60.20 lat (msec): min=45, max=426, avg=129.36, stdev=60.19 clat percentiles (msec): | 1.00th=[ 53], 5.00th=[ 67], 10.00th=[ 74], 20.00th=[ 85], | 30.00th=[ 92], 40.00th=[ 101], 50.00th=[ 113], 60.00th=[ 125], | 70.00th=[ 140], 80.00th=[ 169], 90.00th=[ 211], 95.00th=[ 249], | 99.00th=[ 342], 99.50th=[ 418], 99.90th=[ 426], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 31, max= 192, per=25.59%, avg=100.04, stdev=41.91, samples=125 iops : min= 1, max= 12, avg= 5.46, stdev= 2.72, samples=125 lat (msec) : 10=1.30%, 20=16.54%, 50=22.66%, 100=25.65%, 250=31.38% lat (msec) : 500=2.47% cpu : usr=0.06%, sys=1.55%, ctx=1415, 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=148950: Mon Mar 30 10:01:52 2026 read: IOPS=5, BW=89.6KiB/s (91.8kB/s)(5744KiB/64104msec) clat (msec): min=7, max=292, avg=33.61, stdev=32.78 lat (msec): min=7, max=292, avg=33.61, stdev=32.78 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 13], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 20], 50.00th=[ 23], 60.00th=[ 26], | 70.00th=[ 32], 80.00th=[ 43], 90.00th=[ 70], 95.00th=[ 106], | 99.00th=[ 159], 99.50th=[ 192], 99.90th=[ 292], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 30, max= 416, per=28.29%, avg=105.24, stdev=68.85, samples=108 iops : min= 1, max= 26, avg= 5.79, stdev= 4.39, samples=108 write: IOPS=6, BW=102KiB/s (105kB/s)(6544KiB/64104msec); 0 zone resets clat (msec): min=46, max=411, avg=126.88, stdev=63.27 lat (msec): min=46, max=411, avg=126.88, stdev=63.27 clat percentiles (msec): | 1.00th=[ 55], 5.00th=[ 62], 10.00th=[ 68], 20.00th=[ 82], | 30.00th=[ 91], 40.00th=[ 100], 50.00th=[ 110], 60.00th=[ 121], | 70.00th=[ 136], 80.00th=[ 159], 90.00th=[ 211], 95.00th=[ 279], | 99.00th=[ 355], 99.50th=[ 372], 99.90th=[ 414], 99.95th=[ 414], | 99.99th=[ 414] bw ( KiB/s): min= 30, max= 192, per=26.16%, avg=102.29, stdev=45.43, samples=126 iops : min= 1, max= 12, avg= 5.60, stdev= 2.95, samples=126 lat (msec) : 10=1.17%, 20=17.71%, 50=21.09%, 100=25.78%, 250=30.60% lat (msec) : 500=3.65% cpu : usr=0.05%, sys=1.53%, ctx=1421, 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=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=148951: Mon Mar 30 10:01:52 2026 read: IOPS=6, BW=99.9KiB/s (102kB/s)(6256KiB/62639msec) clat (msec): min=6, max=265, avg=34.71, stdev=35.62 lat (msec): min=6, max=265, avg=34.72, stdev=35.62 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 21], 50.00th=[ 23], 60.00th=[ 27], | 70.00th=[ 32], 80.00th=[ 41], 90.00th=[ 69], 95.00th=[ 116], | 99.00th=[ 224], 99.50th=[ 230], 99.90th=[ 266], 99.95th=[ 266], | 99.99th=[ 266] bw ( KiB/s): min= 31, max= 410, per=30.82%, avg=114.65, stdev=76.31, samples=108 iops : min= 1, max= 25, avg= 6.37, stdev= 4.80, samples=108 write: IOPS=6, BW=96.3KiB/s (98.6kB/s)(6032KiB/62639msec); 0 zone resets clat (msec): min=43, max=425, avg=128.99, stdev=60.25 lat (msec): min=43, max=425, avg=129.01, stdev=60.26 clat percentiles (msec): | 1.00th=[ 52], 5.00th=[ 64], 10.00th=[ 72], 20.00th=[ 83], | 30.00th=[ 93], 40.00th=[ 102], 50.00th=[ 112], 60.00th=[ 127], | 70.00th=[ 144], 80.00th=[ 167], 90.00th=[ 205], 95.00th=[ 253], | 99.00th=[ 351], 99.50th=[ 376], 99.90th=[ 426], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 30, max= 192, per=24.89%, avg=97.30, stdev=40.38, samples=122 iops : min= 1, max= 12, avg= 5.29, stdev= 2.64, samples=122 lat (msec) : 10=1.17%, 20=17.84%, 50=25.13%, 100=23.18%, 250=29.82% lat (msec) : 500=2.86% cpu : usr=0.05%, sys=1.62%, ctx=1449, 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=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=148952: Mon Mar 30 10:01:52 2026 read: IOPS=5, BW=95.2KiB/s (97.4kB/s)(6032KiB/63384msec) clat (msec): min=6, max=329, avg=35.01, stdev=36.70 lat (msec): min=6, max=329, avg=35.01, stdev=36.70 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 16], | 30.00th=[ 18], 40.00th=[ 20], 50.00th=[ 24], 60.00th=[ 28], | 70.00th=[ 33], 80.00th=[ 40], 90.00th=[ 74], 95.00th=[ 118], | 99.00th=[ 186], 99.50th=[ 226], 99.90th=[ 330], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 30, max= 320, per=28.21%, avg=104.93, stdev=66.43, samples=112 iops : min= 1, max= 20, avg= 5.78, stdev= 4.22, samples=112 write: IOPS=6, BW=98.7KiB/s (101kB/s)(6256KiB/63384msec); 0 zone resets clat (msec): min=41, max=429, avg=127.44, stdev=59.63 lat (msec): min=41, max=429, avg=127.45, stdev=59.63 clat percentiles (msec): | 1.00th=[ 53], 5.00th=[ 64], 10.00th=[ 72], 20.00th=[ 82], | 30.00th=[ 90], 40.00th=[ 100], 50.00th=[ 112], 60.00th=[ 126], | 70.00th=[ 140], 80.00th=[ 165], 90.00th=[ 207], 95.00th=[ 251], | 99.00th=[ 330], 99.50th=[ 372], 99.90th=[ 430], 99.95th=[ 430], | 99.99th=[ 430] bw ( KiB/s): min= 31, max= 192, per=25.76%, avg=100.72, stdev=41.12, samples=122 iops : min= 1, max= 12, avg= 5.50, stdev= 2.68, samples=122 lat (msec) : 10=2.34%, 20=18.10%, 50=21.48%, 100=25.00%, 250=30.21% lat (msec) : 500=2.86% cpu : usr=0.04%, sys=1.53%, ctx=1380, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=372KiB/s (381kB/s), 89.6KiB/s-99.9KiB/s (91.8kB/s-102kB/s), io=23.4MiB (24.5MB), run=62639-64320msec WRITE: bw=392KiB/s (401kB/s), 96.3KiB/s-102KiB/s (98.6kB/s-105kB/s), io=24.6MiB (25.8MB), run=62639-64320msec 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=148979: Mon Mar 30 10:02:09 2026 read: IOPS=1, BW=1280KiB/s (1310kB/s)(7168KiB/5601msec) clat (msec): min=97, max=339, avg=153.17, stdev=86.56 lat (msec): min=97, max=339, avg=153.17, stdev=86.56 clat percentiles (msec): | 1.00th=[ 99], 5.00th=[ 99], 10.00th=[ 99], 20.00th=[ 106], | 30.00th=[ 107], 40.00th=[ 107], 50.00th=[ 111], 60.00th=[ 136], | 70.00th=[ 136], 80.00th=[ 178], 90.00th=[ 338], 95.00th=[ 338], | 99.00th=[ 338], 99.50th=[ 338], 99.90th=[ 338], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 1988, max= 4345, per=79.97%, avg=2595.75, stdev=1166.30, samples=4 iops : min= 1, max= 4, avg= 1.75, stdev= 1.50, samples=4 write: IOPS=0, BW=914KiB/s (936kB/s)(5120KiB/5601msec); 0 zone resets clat (msec): min=387, max=2578, avg=880.66, stdev=952.03 lat (msec): min=387, max=2578, avg=880.73, stdev=952.04 clat percentiles (msec): | 1.00th=[ 388], 5.00th=[ 388], 10.00th=[ 388], 20.00th=[ 388], | 30.00th=[ 393], 40.00th=[ 393], 50.00th=[ 472], 60.00th=[ 472], | 70.00th=[ 575], 80.00th=[ 575], 90.00th=[ 2567], 95.00th=[ 2567], | 99.00th=[ 2567], 99.50th=[ 2567], 99.90th=[ 2567], 99.95th=[ 2567], | 99.99th=[ 2567] bw ( KiB/s): min= 2023, max= 4000, per=59.10%, avg=2686.00, stdev=1137.97, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 100=8.33%, 250=41.67%, 500=33.33%, 750=8.33%, >=2000=8.33% cpu : usr=0.04%, sys=3.14%, ctx=70, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=148981: Mon Mar 30 10:02:09 2026 read: IOPS=0, BW=325KiB/s (332kB/s)(2048KiB/6308msec) clat (msec): min=104, max=119, avg=112.14, stdev=11.07 lat (msec): min=104, max=119, avg=112.14, stdev=11.07 clat percentiles (msec): | 1.00th=[ 105], 5.00th=[ 105], 10.00th=[ 105], 20.00th=[ 105], | 30.00th=[ 105], 40.00th=[ 105], 50.00th=[ 105], 60.00th=[ 121], | 70.00th=[ 121], 80.00th=[ 121], 90.00th=[ 121], 95.00th=[ 121], | 99.00th=[ 121], 99.50th=[ 121], 99.90th=[ 121], 99.95th=[ 121], | 99.99th=[ 121] bw ( KiB/s): min= 1406, max= 2035, per=53.00%, avg=1720.50, stdev=444.77, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1623KiB/s (1662kB/s)(10.0MiB/6308msec); 0 zone resets clat (msec): min=176, max=2303, avg=602.69, stdev=638.58 lat (msec): min=176, max=2303, avg=602.77, stdev=638.59 clat percentiles (msec): | 1.00th=[ 176], 5.00th=[ 176], 10.00th=[ 176], 20.00th=[ 284], | 30.00th=[ 292], 40.00th=[ 296], 50.00th=[ 317], 60.00th=[ 330], | 70.00th=[ 435], 80.00th=[ 659], 90.00th=[ 936], 95.00th=[ 2299], | 99.00th=[ 2299], 99.50th=[ 2299], 99.90th=[ 2299], 99.95th=[ 2299], | 99.99th=[ 2299] bw ( KiB/s): min= 1406, max= 4000, per=48.78%, avg=2217.00, stdev=819.37, samples=7 iops : min= 1, max= 3, avg= 1.43, stdev= 0.79, samples=7 lat (msec) : 250=25.00%, 500=50.00%, 750=8.33%, 1000=8.33%, >=2000=8.33% cpu : usr=0.05%, sys=2.96%, ctx=64, 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=148982: Mon Mar 30 10:02:09 2026 read: IOPS=0, BW=1005KiB/s (1029kB/s)(6144KiB/6115msec) clat (msec): min=105, max=2634, avg=600.54, stdev=1000.19 lat (msec): min=105, max=2634, avg=600.54, stdev=1000.19 clat percentiles (msec): | 1.00th=[ 107], 5.00th=[ 107], 10.00th=[ 107], 20.00th=[ 115], | 30.00th=[ 115], 40.00th=[ 176], 50.00th=[ 176], 60.00th=[ 228], | 70.00th=[ 347], 80.00th=[ 347], 90.00th=[ 2635], 95.00th=[ 2635], | 99.00th=[ 2635], 99.50th=[ 2635], 99.90th=[ 2635], 99.95th=[ 2635], | 99.99th=[ 2635] bw ( KiB/s): min= 2035, max= 4096, per=100.00%, avg=3400.67, stdev=1182.77, samples=3 iops : min= 1, max= 4, avg= 2.67, stdev= 1.53, samples=3 write: IOPS=0, BW=1005KiB/s (1029kB/s)(6144KiB/6115msec); 0 zone resets clat (msec): min=183, max=739, avg=396.36, stdev=217.02 lat (msec): min=183, max=739, avg=396.45, stdev=217.01 clat percentiles (msec): | 1.00th=[ 184], 5.00th=[ 184], 10.00th=[ 184], 20.00th=[ 262], | 30.00th=[ 262], 40.00th=[ 264], 50.00th=[ 264], 60.00th=[ 351], | 70.00th=[ 584], 80.00th=[ 584], 90.00th=[ 743], 95.00th=[ 743], | 99.00th=[ 743], 99.50th=[ 743], 99.90th=[ 743], 99.95th=[ 743], | 99.99th=[ 743] bw ( KiB/s): min= 2007, max= 2909, per=49.46%, avg=2247.75, stdev=441.15, samples=4 iops : min= 1, max= 2, avg= 1.50, stdev= 0.58, samples=4 lat (msec) : 250=41.67%, 500=33.33%, 750=16.67%, >=2000=8.33% cpu : usr=0.00%, sys=1.82%, ctx=54, 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=148983: Mon Mar 30 10:02:09 2026 read: IOPS=0, BW=878KiB/s (899kB/s)(5120KiB/5831msec) clat (msec): min=85, max=145, avg=107.91, stdev=23.85 lat (msec): min=85, max=145, avg=107.91, stdev=23.85 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 86], 10.00th=[ 86], 20.00th=[ 86], | 30.00th=[ 90], 40.00th=[ 90], 50.00th=[ 106], 60.00th=[ 106], | 70.00th=[ 114], 80.00th=[ 114], 90.00th=[ 146], 95.00th=[ 146], | 99.00th=[ 146], 99.50th=[ 146], 99.90th=[ 146], 99.95th=[ 146], | 99.99th=[ 146] bw ( KiB/s): min= 8143, max= 8143, per=100.00%, avg=8143.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=1, BW=1229KiB/s (1259kB/s)(7168KiB/5831msec); 0 zone resets clat (msec): min=134, max=2630, avg=727.78, stdev=860.83 lat (msec): min=135, max=2630, avg=727.89, stdev=860.83 clat percentiles (msec): | 1.00th=[ 136], 5.00th=[ 136], 10.00th=[ 136], 20.00th=[ 288], | 30.00th=[ 342], 40.00th=[ 342], 50.00th=[ 460], 60.00th=[ 485], | 70.00th=[ 485], 80.00th=[ 760], 90.00th=[ 2635], 95.00th=[ 2635], | 99.00th=[ 2635], 99.50th=[ 2635], 99.90th=[ 2635], 99.95th=[ 2635], | 99.99th=[ 2635] bw ( KiB/s): min= 1988, max= 4071, per=57.02%, avg=2591.60, stdev=909.28, samples=5 iops : min= 1, max= 3, avg= 1.60, stdev= 0.89, samples=5 lat (msec) : 100=16.67%, 250=33.33%, 500=33.33%, 1000=8.33%, >=2000=8.33% cpu : usr=0.00%, sys=2.85%, ctx=59, 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=3247KiB/s (3325kB/s), 325KiB/s-1280KiB/s (332kB/s-1310kB/s), io=20.0MiB (20.0MB), run=5601-6308msec WRITE: bw=4545KiB/s (4654kB/s), 914KiB/s-1623KiB/s (936kB/s-1662kB/s), io=28.0MiB (29.4MB), run=5601-6308msec rand-rw: (groupid=0, jobs=1): err= 0: pid=148984: Mon Mar 30 10:02:10 2026 read: IOPS=1, BW=1311KiB/s (1343kB/s)(7168KiB/5467msec) clat (usec): min=510, max=339781, avg=170490.29, stdev=135931.60 lat (usec): min=511, max=339782, avg=170491.77, stdev=135931.66 clat percentiles (usec): | 1.00th=[ 510], 5.00th=[ 510], 10.00th=[ 510], 20.00th=[ 1123], | 30.00th=[137364], 40.00th=[137364], 50.00th=[158335], 60.00th=[267387], | 70.00th=[267387], 80.00th=[287310], 90.00th=[341836], 95.00th=[341836], | 99.00th=[341836], 99.50th=[341836], 99.90th=[341836], 99.95th=[341836], | 99.99th=[341836] bw ( KiB/s): min= 1675, max= 4079, per=91.18%, avg=2942.25, stdev=1282.80, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 write: IOPS=0, BW=937KiB/s (959kB/s)(5120KiB/5467msec); 0 zone resets clat (msec): min=339, max=2311, avg=822.85, stdev=835.51 lat (msec): min=339, max=2311, avg=823.00, stdev=835.49 clat percentiles (msec): | 1.00th=[ 338], 5.00th=[ 338], 10.00th=[ 338], 20.00th=[ 338], | 30.00th=[ 422], 40.00th=[ 422], 50.00th=[ 518], 60.00th=[ 518], | 70.00th=[ 523], 80.00th=[ 523], 90.00th=[ 2299], 95.00th=[ 2299], | 99.00th=[ 2299], 99.50th=[ 2299], 99.90th=[ 2299], 99.95th=[ 2299], | 99.99th=[ 2299] bw ( KiB/s): min= 2000, max= 2039, per=44.78%, avg=2023.25, stdev=17.75, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 lat (usec) : 750=8.33% lat (msec) : 2=8.33%, 250=16.67%, 500=41.67%, 750=16.67%, >=2000=8.33% cpu : usr=0.00%, sys=7.28%, ctx=183, 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=148985: Mon Mar 30 10:02:10 2026 read: IOPS=0, BW=323KiB/s (331kB/s)(2048KiB/6345msec) clat (msec): min=4, max=2335, avg=1169.99, stdev=1648.89 lat (msec): min=4, max=2335, avg=1169.99, stdev=1648.89 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 5], 10.00th=[ 5], 20.00th=[ 5], | 30.00th=[ 5], 40.00th=[ 5], 50.00th=[ 5], 60.00th=[ 2333], | 70.00th=[ 2333], 80.00th=[ 2333], 90.00th=[ 2333], 95.00th=[ 2333], | 99.00th=[ 2333], 99.50th=[ 2333], 99.90th=[ 2333], 99.95th=[ 2333], | 99.99th=[ 2333] bw ( KiB/s): min= 2023, max= 2035, per=62.88%, avg=2029.00, stdev= 8.49, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1614KiB/s (1653kB/s)(10.0MiB/6345msec); 0 zone resets clat (msec): min=143, max=1227, avg=395.40, stdev=361.80 lat (msec): min=143, max=1227, avg=395.55, stdev=361.79 clat percentiles (msec): | 1.00th=[ 144], 5.00th=[ 144], 10.00th=[ 144], 20.00th=[ 188], | 30.00th=[ 192], 40.00th=[ 192], 50.00th=[ 205], 60.00th=[ 205], | 70.00th=[ 228], 80.00th=[ 584], 90.00th=[ 793], 95.00th=[ 1234], | 99.00th=[ 1234], 99.50th=[ 1234], 99.90th=[ 1234], 99.95th=[ 1234], | 99.99th=[ 1234] bw ( KiB/s): min= 2023, max= 4071, per=80.58%, avg=3640.80, stdev=904.80, samples=5 iops : min= 1, max= 3, avg= 2.60, stdev= 0.89, samples=5 lat (msec) : 10=8.33%, 250=58.33%, 750=8.33%, 1000=8.33%, 2000=8.33% lat (msec) : >=2000=8.33% cpu : usr=0.02%, sys=9.17%, ctx=234, 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=148986: Mon Mar 30 10:02:10 2026 read: IOPS=2, BW=2114KiB/s (2165kB/s)(6144KiB/2906msec) clat (usec): min=513, max=227148, avg=128810.50, stdev=100602.07 lat (usec): min=515, max=227149, avg=128812.14, stdev=100601.98 clat percentiles (usec): | 1.00th=[ 515], 5.00th=[ 515], 10.00th=[ 515], 20.00th=[ 2245], | 30.00th=[ 2245], 40.00th=[173016], 50.00th=[173016], 60.00th=[175113], | 70.00th=[193987], 80.00th=[193987], 90.00th=[227541], 95.00th=[227541], | 99.00th=[227541], 99.50th=[227541], 99.90th=[227541], 99.95th=[227541], | 99.99th=[227541] bw ( KiB/s): min= 4047, max= 4096, per=100.00%, avg=4071.50, stdev=34.65, samples=2 iops : min= 3, max= 4, avg= 3.50, stdev= 0.71, samples=2 write: IOPS=2, BW=2114KiB/s (2165kB/s)(6144KiB/2906msec); 0 zone resets clat (msec): min=195, max=743, avg=311.42, stdev=212.84 lat (msec): min=195, max=744, avg=311.49, stdev=212.83 clat percentiles (msec): | 1.00th=[ 197], 5.00th=[ 197], 10.00th=[ 197], 20.00th=[ 211], | 30.00th=[ 211], 40.00th=[ 228], 50.00th=[ 228], 60.00th=[ 236], | 70.00th=[ 253], 80.00th=[ 253], 90.00th=[ 743], 95.00th=[ 743], | 99.00th=[ 743], 99.50th=[ 743], 99.90th=[ 743], 99.95th=[ 743], | 99.99th=[ 743] bw ( KiB/s): min= 1648, max= 2048, per=42.77%, avg=1932.50, stdev=190.40, samples=4 iops : min= 1, max= 2, avg= 1.25, stdev= 0.50, samples=4 lat (usec) : 750=8.33% lat (msec) : 4=8.33%, 250=66.67%, 500=8.33%, 750=8.33% cpu : usr=0.03%, sys=14.66%, ctx=109, 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=148987: Mon Mar 30 10:02:10 2026 read: IOPS=0, BW=884KiB/s (905kB/s)(5120KiB/5792msec) clat (usec): min=509, max=266382, avg=141907.66, stdev=130050.50 lat (usec): min=510, max=266385, avg=141909.32, stdev=130051.24 clat percentiles (usec): | 1.00th=[ 510], 5.00th=[ 510], 10.00th=[ 510], 20.00th=[ 510], | 30.00th=[ 1565], 40.00th=[ 1565], 50.00th=[212861], 60.00th=[212861], | 70.00th=[227541], 80.00th=[227541], 90.00th=[267387], 95.00th=[267387], | 99.00th=[267387], 99.50th=[267387], 99.90th=[267387], 99.95th=[267387], | 99.99th=[267387] bw ( KiB/s): min= 4000, max= 4071, per=100.00%, avg=4035.50, stdev=50.20, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1238KiB/s (1267kB/s)(7168KiB/5792msec); 0 zone resets clat (msec): min=206, max=2411, avg=715.43, stdev=772.74 lat (msec): min=206, max=2411, avg=715.56, stdev=772.76 clat percentiles (msec): | 1.00th=[ 207], 5.00th=[ 207], 10.00th=[ 207], 20.00th=[ 317], | 30.00th=[ 321], 40.00th=[ 321], 50.00th=[ 363], 60.00th=[ 659], | 70.00th=[ 659], 80.00th=[ 735], 90.00th=[ 2400], 95.00th=[ 2400], | 99.00th=[ 2400], 99.50th=[ 2400], 99.90th=[ 2400], 99.95th=[ 2400], | 99.99th=[ 2400] bw ( KiB/s): min= 1825, max= 2039, per=43.99%, avg=1987.50, stdev=80.65, samples=6 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=6 lat (usec) : 750=8.33% lat (msec) : 2=8.33%, 250=25.00%, 500=33.33%, 750=16.67%, >=2000=8.33% cpu : usr=0.02%, sys=8.32%, ctx=127, 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=3228KiB/s (3305kB/s), 323KiB/s-2114KiB/s (331kB/s-2165kB/s), io=20.0MiB (20.0MB), run=2906-6345msec WRITE: bw=4519KiB/s (4627kB/s), 937KiB/s-2114KiB/s (959kB/s-2165kB/s), io=28.0MiB (29.4MB), run=2906-6345msec 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=148996: Mon Mar 30 10:02:25 2026 read: IOPS=1, BW=4423KiB/s (4529kB/s)(12.0MiB/2778msec) clat (msec): min=702, max=919, avg=813.14, stdev=108.77 lat (msec): min=702, max=919, avg=813.14, stdev=108.77 clat percentiles (msec): | 1.00th=[ 701], 5.00th=[ 701], 10.00th=[ 701], 20.00th=[ 701], | 30.00th=[ 701], 40.00th=[ 818], 50.00th=[ 818], 60.00th=[ 818], | 70.00th=[ 919], 80.00th=[ 919], 90.00th=[ 919], 95.00th=[ 919], | 99.00th=[ 919], 99.50th=[ 919], 99.90th=[ 919], 99.95th=[ 919], | 99.99th=[ 919] bw ( KiB/s): min= 8143, max= 8159, per=100.00%, avg=8151.00, stdev=11.31, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 1000=66.67% cpu : usr=0.00%, sys=5.94%, ctx=77, majf=0, minf=7 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=148997: Mon Mar 30 10:02:25 2026 read: IOPS=0, BW=996KiB/s (1020kB/s)(4096KiB/4114msec) clat (nsec): min=1172.1M, max=1172.1M, avg=1172144634.00, stdev= 0.00 lat (nsec): min=1172.1M, max=1172.1M, avg=1172147273.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1167], 5.00th=[ 1167], 10.00th=[ 1167], 20.00th=[ 1167], | 30.00th=[ 1167], 40.00th=[ 1167], 50.00th=[ 1167], 60.00th=[ 1167], | 70.00th=[ 1167], 80.00th=[ 1167], 90.00th=[ 1167], 95.00th=[ 1167], | 99.00th=[ 1167], 99.50th=[ 1167], 99.90th=[ 1167], 99.95th=[ 1167], | 99.99th=[ 1167] bw ( KiB/s): min= 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=1991KiB/s (2039kB/s)(8192KiB/4114msec); 0 zone resets clat (msec): min=698, max=2128, avg=1413.50, stdev=1010.52 lat (msec): min=700, max=2128, avg=1414.46, stdev=1009.65 clat percentiles (msec): | 1.00th=[ 701], 5.00th=[ 701], 10.00th=[ 701], 20.00th=[ 701], | 30.00th=[ 701], 40.00th=[ 701], 50.00th=[ 701], 60.00th=[ 2123], | 70.00th=[ 2123], 80.00th=[ 2123], 90.00th=[ 2123], 95.00th=[ 2123], | 99.00th=[ 2123], 99.50th=[ 2123], 99.90th=[ 2123], 99.95th=[ 2123], | 99.99th=[ 2123] bw ( KiB/s): min= 8015, max= 8015, per=100.00%, avg=8015.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=3.31%, ctx=41, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=148998: Mon Mar 30 10:02:25 2026 write: IOPS=0, BW=3481KiB/s (3565kB/s)(12.0MiB/3530msec); 0 zone resets clat (msec): min=567, max=1552, avg=1157.35, stdev=520.44 lat (msec): min=568, max=1553, avg=1157.81, stdev=520.20 clat percentiles (msec): | 1.00th=[ 567], 5.00th=[ 567], 10.00th=[ 567], 20.00th=[ 567], | 30.00th=[ 567], 40.00th=[ 1351], 50.00th=[ 1351], 60.00th=[ 1351], | 70.00th=[ 1552], 80.00th=[ 1552], 90.00th=[ 1552], 95.00th=[ 1552], | 99.00th=[ 1552], 99.50th=[ 1552], 99.90th=[ 1552], 99.95th=[ 1552], | 99.99th=[ 1552] bw ( KiB/s): min= 8015, max= 8175, per=100.00%, avg=8095.00, stdev=113.14, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 2000=66.67% cpu : usr=0.00%, sys=2.81%, ctx=42, majf=0, minf=7 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=149000: Mon Mar 30 10:02:25 2026 write: IOPS=1, BW=4857KiB/s (4973kB/s)(12.0MiB/2530msec); 0 zone resets clat (msec): min=303, max=1638, avg=795.30, stdev=733.78 lat (msec): min=303, max=1639, avg=796.31, stdev=733.33 clat percentiles (msec): | 1.00th=[ 305], 5.00th=[ 305], 10.00th=[ 305], 20.00th=[ 305], | 30.00th=[ 305], 40.00th=[ 443], 50.00th=[ 443], 60.00th=[ 443], | 70.00th=[ 1636], 80.00th=[ 1636], 90.00th=[ 1636], 95.00th=[ 1636], | 99.00th=[ 1636], 99.50th=[ 1636], 99.90th=[ 1636], 99.95th=[ 1636], | 99.99th=[ 1636] bw ( KiB/s): min= 7447, max= 8159, per=97.98%, avg=7803.00, stdev=503.46, 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=5.34%, ctx=53, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=3982KiB/s (4078kB/s), 996KiB/s-4423KiB/s (1020kB/s-4529kB/s), io=16.0MiB (16.8MB), run=2778-4114msec WRITE: bw=7965KiB/s (8156kB/s), 1991KiB/s-4857KiB/s (2039kB/s-4973kB/s), io=32.0MiB (33.6MB), run=2530-4114msec rand-rw: (groupid=0, jobs=1): err= 0: pid=148999: Mon Mar 30 10:02:26 2026 read: IOPS=1, BW=5073KiB/s (5195kB/s)(12.0MiB/2422msec) clat (msec): min=692, max=933, avg=778.73, stdev=134.66 lat (msec): min=692, max=933, avg=778.73, stdev=134.66 clat percentiles (msec): | 1.00th=[ 693], 5.00th=[ 693], 10.00th=[ 693], 20.00th=[ 693], | 30.00th=[ 693], 40.00th=[ 709], 50.00th=[ 709], 60.00th=[ 709], | 70.00th=[ 936], 80.00th=[ 936], 90.00th=[ 936], 95.00th=[ 936], | 99.00th=[ 936], 99.50th=[ 936], 99.90th=[ 936], 99.95th=[ 936], | 99.99th=[ 936] 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=66.67%, 1000=33.33% cpu : usr=0.00%, sys=16.11%, ctx=330, 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=149001: Mon Mar 30 10:02:26 2026 read: IOPS=0, BW=1555KiB/s (1592kB/s)(4096KiB/2634msec) clat (nsec): min=643765k, max=643765k, avg=643764903.00, stdev= 0.00 lat (nsec): min=643767k, max=643767k, avg=643767305.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 642], 5.00th=[ 642], 10.00th=[ 642], 20.00th=[ 642], | 30.00th=[ 642], 40.00th=[ 642], 50.00th=[ 642], 60.00th=[ 642], | 70.00th=[ 642], 80.00th=[ 642], 90.00th=[ 642], 95.00th=[ 642], | 99.00th=[ 642], 99.50th=[ 642], 99.90th=[ 642], 99.95th=[ 642], | 99.99th=[ 642] 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=3110KiB/s (3185kB/s)(8192KiB/2634msec); 0 zone resets clat (msec): min=691, max=1192, avg=942.32, stdev=354.28 lat (msec): min=692, max=1193, avg=942.68, stdev=354.28 clat percentiles (msec): | 1.00th=[ 693], 5.00th=[ 693], 10.00th=[ 693], 20.00th=[ 693], | 30.00th=[ 693], 40.00th=[ 693], 50.00th=[ 693], 60.00th=[ 1200], | 70.00th=[ 1200], 80.00th=[ 1200], 90.00th=[ 1200], 95.00th=[ 1200], | 99.00th=[ 1200], 99.50th=[ 1200], 99.90th=[ 1200], 99.95th=[ 1200], | 99.99th=[ 1200] 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) : 750=66.67%, 2000=33.33% cpu : usr=0.00%, sys=6.65%, ctx=90, 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=149002: Mon Mar 30 10:02:26 2026 write: IOPS=0, BW=2695KiB/s (2759kB/s)(12.0MiB/4560msec); 0 zone resets clat (msec): min=271, max=2148, avg=1492.50, stdev=1058.32 lat (msec): min=271, max=2150, avg=1493.23, stdev=1058.67 clat percentiles (msec): | 1.00th=[ 271], 5.00th=[ 271], 10.00th=[ 271], 20.00th=[ 271], | 30.00th=[ 271], 40.00th=[ 2056], 50.00th=[ 2056], 60.00th=[ 2056], | 70.00th=[ 2165], 80.00th=[ 2165], 90.00th=[ 2165], 95.00th=[ 2165], | 99.00th=[ 2165], 99.50th=[ 2165], 99.90th=[ 2165], 99.95th=[ 2165], | 99.99th=[ 2165] 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 lat (msec) : 500=33.33%, >=2000=66.67% cpu : usr=0.00%, sys=2.63%, ctx=36, 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=149003: Mon Mar 30 10:02:26 2026 write: IOPS=0, BW=3021KiB/s (3094kB/s)(12.0MiB/4067msec); 0 zone resets clat (msec): min=353, max=2810, avg=1303.88, stdev=1319.88 lat (msec): min=354, max=2811, avg=1304.36, stdev=1320.21 clat percentiles (msec): | 1.00th=[ 355], 5.00th=[ 355], 10.00th=[ 355], 20.00th=[ 355], | 30.00th=[ 355], 40.00th=[ 751], 50.00th=[ 751], 60.00th=[ 751], | 70.00th=[ 2802], 80.00th=[ 2802], 90.00th=[ 2802], 95.00th=[ 2802], | 99.00th=[ 2802], 99.50th=[ 2802], 99.90th=[ 2802], 99.95th=[ 2802], | 99.99th=[ 2802] 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%, 750=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=3.86%, ctx=58, 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=6220KiB/s (6369kB/s), 1555KiB/s-5073KiB/s (1592kB/s-5195kB/s), io=16.0MiB (16.8MB), run=2422-2634msec WRITE: bw=7186KiB/s (7358kB/s), 2695KiB/s-3110KiB/s (2759kB/s-3185kB/s), io=32.0MiB (33.6MB), run=2634-4560msec