== sanity test 398b: DIO and buffer IO race ============== 00:10:06 (1789272606) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 6.56136 s, 7.7 MB/s mix direct rw 4096 by fio with 4 jobs... mix buffer rw 4096 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=179480: Sun Sep 13 00:13:12 2026 read: IOPS=9, BW=36.6KiB/s (37.4kB/s)(5992KiB/163856msec) clat (usec): min=40, max=1013.9k, avg=57615.49, stdev=46569.97 lat (usec): min=41, max=1013.9k, avg=57621.16, stdev=46567.01 clat percentiles (usec): | 1.00th=[ 54], 5.00th=[ 12125], 10.00th=[ 19006], | 20.00th=[ 27132], 30.00th=[ 33817], 40.00th=[ 41157], | 50.00th=[ 47973], 60.00th=[ 56886], 70.00th=[ 66847], | 80.00th=[ 83362], 90.00th=[ 108528], 95.00th=[ 132645], | 99.00th=[ 191890], 99.50th=[ 225444], 99.90th=[ 387974], | 99.95th=[1010828], 99.99th=[1010828] bw ( KiB/s): min= 6, max= 126, per=24.95%, avg=36.43, stdev=18.17, samples=317 iops : min= 1, max= 31, avg= 8.45, stdev= 4.57, samples=317 write: IOPS=9, BW=38.4KiB/s (39.3kB/s)(6296KiB/163856msec); 0 zone resets clat (usec): min=759, max=560690, avg=48836.63, stdev=56255.37 lat (usec): min=761, max=560691, avg=48843.97, stdev=56262.03 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1172], 10.00th=[ 1319], 20.00th=[ 3687], | 30.00th=[ 8848], 40.00th=[ 18744], 50.00th=[ 32113], 60.00th=[ 45351], | 70.00th=[ 62129], 80.00th=[ 83362], 90.00th=[122160], 95.00th=[158335], | 99.00th=[246416], 99.50th=[287310], 99.90th=[421528], 99.95th=[557843], | 99.99th=[557843] bw ( KiB/s): min= 7, max= 182, per=25.18%, avg=38.52, stdev=21.49, samples=316 iops : min= 1, max= 45, avg= 8.98, stdev= 5.42, samples=316 lat (usec) : 50=0.20%, 100=1.76%, 250=0.10%, 500=0.03%, 1000=0.29% lat (msec) : 2=7.32%, 4=3.26%, 10=5.60%, 20=7.88%, 50=31.25% lat (msec) : 100=29.07%, 250=12.63%, 500=0.55%, 750=0.03%, 2000=0.03% cpu : usr=0.05%, sys=3.60%, ctx=6083, majf=0, minf=19 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=179481: Sun Sep 13 00:13:12 2026 read: IOPS=9, BW=37.1KiB/s (37.0kB/s)(5940KiB/160141msec) clat (usec): min=35, max=384065, avg=60358.97, stdev=41056.69 lat (usec): min=35, max=384066, avg=60363.42, stdev=41056.80 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 14222], 10.00th=[ 21627], 20.00th=[ 29754], | 30.00th=[ 36963], 40.00th=[ 43779], 50.00th=[ 52167], 60.00th=[ 61080], | 70.00th=[ 71828], 80.00th=[ 85459], 90.00th=[109577], 95.00th=[131597], | 99.00th=[202376], 99.50th=[231736], 99.90th=[354419], 99.95th=[383779], | 99.99th=[383779] bw ( KiB/s): min= 6, max= 103, per=25.24%, avg=36.85, stdev=16.56, samples=312 iops : min= 1, max= 25, avg= 8.55, stdev= 4.17, samples=312 write: IOPS=9, BW=39.6KiB/s (40.6kB/s)(6348KiB/160141msec); 0 zone resets clat (usec): min=678, max=1024.4k, avg=44030.07, stdev=56350.74 lat (usec): min=680, max=1024.4k, avg=44036.94, stdev=56358.10 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1172], 10.00th=[ 1303], | 20.00th=[ 3228], 30.00th=[ 6521], 40.00th=[ 14353], | 50.00th=[ 27657], 60.00th=[ 40633], 70.00th=[ 55837], | 80.00th=[ 76022], 90.00th=[ 106431], 95.00th=[ 143655], | 99.00th=[ 231736], 99.50th=[ 291505], 99.90th=[ 446694], | 99.95th=[1027605], 99.99th=[1027605] bw ( KiB/s): min= 7, max= 127, per=26.04%, avg=39.84, stdev=20.41, samples=308 iops : min= 1, max= 31, avg= 9.31, stdev= 5.16, samples=308 lat (usec) : 50=0.26%, 100=1.69%, 250=0.07%, 750=0.03%, 1000=0.07% lat (msec) : 2=7.78%, 4=3.71%, 10=7.00%, 20=5.86%, 50=30.89% lat (msec) : 100=29.56%, 250=12.50%, 500=0.55%, 2000=0.03% cpu : usr=0.06%, sys=3.73%, ctx=5906, majf=0, minf=19 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179482: Sun Sep 13 00:13:12 2026 read: IOPS=9, BW=37.1KiB/s (37.9kB/s)(6028KiB/162662msec) clat (usec): min=35, max=336138, avg=59436.56, stdev=42914.92 lat (usec): min=35, max=336140, avg=59439.78, stdev=42915.12 clat percentiles (usec): | 1.00th=[ 55], 5.00th=[ 1500], 10.00th=[ 19268], 20.00th=[ 27919], | 30.00th=[ 35390], 40.00th=[ 42206], 50.00th=[ 49546], 60.00th=[ 59507], | 70.00th=[ 69731], 80.00th=[ 85459], 90.00th=[109577], 95.00th=[143655], | 99.00th=[217056], 99.50th=[248513], 99.90th=[304088], 99.95th=[337642], | 99.99th=[337642] bw ( KiB/s): min= 7, max= 119, per=25.32%, avg=36.97, stdev=17.35, samples=316 iops : min= 1, max= 29, avg= 8.59, stdev= 4.40, samples=316 write: IOPS=9, BW=38.5KiB/s (39.4kB/s)(6260KiB/162662msec); 0 zone resets clat (usec): min=800, max=1171.0k, avg=46302.99, stdev=56434.18 lat (usec): min=801, max=1171.1k, avg=46322.37, stdev=56430.81 clat percentiles (usec): | 1.00th=[ 1074], 5.00th=[ 1172], 10.00th=[ 1303], | 20.00th=[ 3752], 30.00th=[ 8291], 40.00th=[ 19792], | 50.00th=[ 32375], 60.00th=[ 45876], 70.00th=[ 60556], | 80.00th=[ 79168], 90.00th=[ 109577], 95.00th=[ 139461], | 99.00th=[ 202376], 99.50th=[ 263193], 99.90th=[ 476054], | 99.95th=[1166017], 99.99th=[1166017] bw ( KiB/s): min= 7, max= 151, per=25.54%, avg=39.08, stdev=20.03, samples=311 iops : min= 1, max= 37, avg= 9.11, stdev= 5.03, samples=311 lat (usec) : 50=0.33%, 100=1.92%, 250=0.16%, 500=0.03%, 1000=0.23% lat (msec) : 2=7.23%, 4=3.12%, 10=5.89%, 20=6.74%, 50=31.12% lat (msec) : 100=30.50%, 250=12.24%, 500=0.46%, 2000=0.03% cpu : usr=0.05%, sys=3.63%, ctx=6110, majf=0, minf=18 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179483: Sun Sep 13 00:13:12 2026 read: IOPS=9, BW=37.6KiB/s (38.5kB/s)(6052KiB/161083msec) clat (usec): min=41, max=471767, avg=57804.85, stdev=42718.60 lat (usec): min=43, max=471769, avg=57808.42, stdev=42718.78 clat percentiles (usec): | 1.00th=[ 54], 5.00th=[ 363], 10.00th=[ 19530], 20.00th=[ 27395], | 30.00th=[ 33817], 40.00th=[ 40633], 50.00th=[ 47973], 60.00th=[ 56886], | 70.00th=[ 66847], 80.00th=[ 84411], 90.00th=[108528], 95.00th=[132645], | 99.00th=[202376], 99.50th=[238027], 99.90th=[341836], 99.95th=[471860], | 99.99th=[471860] bw ( KiB/s): min= 7, max= 119, per=25.74%, avg=37.58, stdev=18.56, samples=312 iops : min= 1, max= 29, avg= 8.74, stdev= 4.67, samples=312 write: IOPS=9, BW=38.7KiB/s (39.6kB/s)(6236KiB/161083msec); 0 zone resets clat (usec): min=892, max=1137.3k, avg=46790.16, stdev=57531.24 lat (usec): min=894, max=1137.3k, avg=46793.47, stdev=57531.29 clat percentiles (usec): | 1.00th=[ 1037], 5.00th=[ 1156], 10.00th=[ 1287], | 20.00th=[ 3097], 30.00th=[ 6849], 40.00th=[ 16909], | 50.00th=[ 31065], 60.00th=[ 44303], 70.00th=[ 61080], | 80.00th=[ 82314], 90.00th=[ 114820], 95.00th=[ 152044], | 99.00th=[ 212861], 99.50th=[ 248513], 99.90th=[ 333448], | 99.95th=[1132463], 99.99th=[1132463] bw ( KiB/s): min= 7, max= 119, per=25.39%, avg=38.85, stdev=18.62, samples=311 iops : min= 1, max= 29, avg= 9.05, stdev= 4.68, samples=311 lat (usec) : 50=0.20%, 100=2.05%, 250=0.16%, 500=0.10%, 1000=0.33% lat (msec) : 2=7.85%, 4=3.39%, 10=6.41%, 20=5.63%, 50=31.77% lat (msec) : 100=28.35%, 250=13.35%, 500=0.39%, 2000=0.03% cpu : usr=0.06%, sys=3.69%, ctx=6097, majf=0, minf=20 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=147KiB/s (150kB/s), 36.6KiB/s-37.6KiB/s (37.4kB/s-38.5kB/s), io=23.4MiB (24.6MB), run=160141-163856msec WRITE: bw=153KiB/s (157kB/s), 38.4KiB/s-39.6KiB/s (39.3kB/s-40.6kB/s), io=24.6MiB (25.7MB), run=160141-163856msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179484: Sun Sep 13 00:13:55 2026 read: IOPS=7, BW=29.2KiB/s (29.9kB/s)(5992KiB/205486msec) clat (msec): min=5, max=1113, avg=53.96, stdev=62.86 lat (msec): min=5, max=1113, avg=53.96, stdev=62.86 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 22], 40.00th=[ 26], 50.00th=[ 32], 60.00th=[ 41], | 70.00th=[ 55], 80.00th=[ 79], 90.00th=[ 130], 95.00th=[ 174], | 99.00th=[ 288], 99.50th=[ 338], 99.90th=[ 493], 99.95th=[ 1116], | 99.99th=[ 1116] bw ( KiB/s): min= 7, max= 135, per=26.46%, avg=30.70, stdev=25.21, samples=378 iops : min= 1, max= 33, avg= 6.98, stdev= 6.32, samples=378 write: IOPS=7, BW=30.6KiB/s (31.4kB/s)(6296KiB/205486msec); 0 zone resets clat (msec): min=12, max=627, avg=78.87, stdev=66.51 lat (msec): min=12, max=627, avg=78.87, stdev=66.51 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 22], 10.00th=[ 26], 20.00th=[ 32], | 30.00th=[ 37], 40.00th=[ 44], 50.00th=[ 53], 60.00th=[ 68], | 70.00th=[ 91], 80.00th=[ 123], 90.00th=[ 167], 95.00th=[ 205], | 99.00th=[ 321], 99.50th=[ 376], 99.90th=[ 550], 99.95th=[ 625], | 99.99th=[ 625] bw ( KiB/s): min= 7, max= 119, per=25.83%, avg=31.26, stdev=23.81, samples=390 iops : min= 1, max= 29, avg= 7.12, stdev= 5.98, samples=390 lat (msec) : 10=1.82%, 20=13.64%, 50=41.89%, 100=21.71%, 250=18.78% lat (msec) : 500=2.05%, 750=0.07%, 2000=0.03% cpu : usr=0.05%, sys=1.35%, ctx=4767, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179485: Sun Sep 13 00:13:55 2026 read: IOPS=7, BW=28.0KiB/s (29.7kB/s)(5940KiB/205030msec) clat (msec): min=5, max=1087, avg=52.13, stdev=59.15 lat (msec): min=5, max=1087, avg=52.14, stdev=59.15 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 14], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 25], 50.00th=[ 31], 60.00th=[ 40], | 70.00th=[ 54], 80.00th=[ 78], 90.00th=[ 124], 95.00th=[ 167], | 99.00th=[ 249], 99.50th=[ 300], 99.90th=[ 418], 99.95th=[ 1083], | 99.99th=[ 1083] bw ( KiB/s): min= 7, max= 143, per=26.85%, avg=31.14, stdev=25.12, samples=369 iops : min= 1, max= 35, avg= 7.09, stdev= 6.32, samples=369 write: IOPS=7, BW=30.0KiB/s (31.7kB/s)(6348KiB/205030msec); 0 zone resets clat (msec): min=11, max=613, avg=80.07, stdev=68.72 lat (msec): min=11, max=613, avg=80.08, stdev=68.71 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 22], 10.00th=[ 26], 20.00th=[ 31], | 30.00th=[ 37], 40.00th=[ 44], 50.00th=[ 53], 60.00th=[ 69], | 70.00th=[ 91], 80.00th=[ 124], 90.00th=[ 169], 95.00th=[ 209], | 99.00th=[ 363], 99.50th=[ 405], 99.90th=[ 468], 99.95th=[ 617], | 99.99th=[ 617] bw ( KiB/s): min= 7, max= 119, per=25.84%, avg=31.27, stdev=23.85, samples=393 iops : min= 1, max= 29, avg= 7.12, stdev= 5.99, samples=393 lat (msec) : 10=1.99%, 20=13.96%, 50=41.80%, 100=21.61%, 250=18.75% lat (msec) : 500=1.82%, 750=0.03%, 2000=0.03% cpu : usr=0.05%, sys=1.27%, ctx=4728, 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=179486: Sun Sep 13 00:13:55 2026 read: IOPS=7, BW=29.2KiB/s (29.9kB/s)(6028KiB/206589msec) clat (msec): min=5, max=456, avg=55.85, stdev=62.50 lat (msec): min=5, max=456, avg=55.85, stdev=62.51 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 25], 50.00th=[ 30], 60.00th=[ 41], | 70.00th=[ 54], 80.00th=[ 85], 90.00th=[ 138], 95.00th=[ 197], | 99.00th=[ 292], 99.50th=[ 355], 99.90th=[ 414], 99.95th=[ 456], | 99.99th=[ 456] bw ( KiB/s): min= 7, max= 143, per=26.19%, avg=30.38, stdev=25.54, samples=383 iops : min= 1, max= 35, avg= 6.90, stdev= 6.41, samples=383 write: IOPS=7, BW=30.3KiB/s (31.0kB/s)(6260KiB/206589msec); 0 zone resets clat (msec): min=9, max=1133, avg=77.90, stdev=70.01 lat (msec): min=9, max=1133, avg=77.92, stdev=70.00 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 21], 10.00th=[ 25], 20.00th=[ 31], | 30.00th=[ 35], 40.00th=[ 41], 50.00th=[ 51], 60.00th=[ 66], | 70.00th=[ 91], 80.00th=[ 122], 90.00th=[ 169], 95.00th=[ 213], | 99.00th=[ 313], 99.50th=[ 342], 99.90th=[ 447], 99.95th=[ 1133], | 99.99th=[ 1133] bw ( KiB/s): min= 7, max= 118, per=25.75%, avg=31.15, stdev=25.08, samples=388 iops : min= 1, max= 29, avg= 7.09, stdev= 6.30, samples=388 lat (msec) : 10=2.12%, 20=14.23%, 50=42.55%, 100=19.56%, 250=19.11% lat (msec) : 500=2.41%, 2000=0.03% cpu : usr=0.06%, sys=1.28%, ctx=4712, 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=179487: Sun Sep 13 00:13:55 2026 read: IOPS=7, BW=29.5KiB/s (30.2kB/s)(6052KiB/205407msec) clat (msec): min=4, max=597, avg=53.45, stdev=58.08 lat (msec): min=4, max=597, avg=53.46, stdev=58.08 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 26], 50.00th=[ 32], 60.00th=[ 40], | 70.00th=[ 54], 80.00th=[ 80], 90.00th=[ 127], 95.00th=[ 178], | 99.00th=[ 271], 99.50th=[ 313], 99.90th=[ 464], 99.95th=[ 600], | 99.99th=[ 600] bw ( KiB/s): min= 7, max= 112, per=27.28%, avg=31.64, stdev=24.84, samples=369 iops : min= 1, max= 28, avg= 7.22, stdev= 6.25, samples=369 write: IOPS=7, BW=30.4KiB/s (31.1kB/s)(6236KiB/205407msec); 0 zone resets clat (msec): min=13, max=1115, avg=79.52, stdev=71.60 lat (msec): min=13, max=1115, avg=79.52, stdev=71.60 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 22], 10.00th=[ 26], 20.00th=[ 31], | 30.00th=[ 37], 40.00th=[ 44], 50.00th=[ 54], 60.00th=[ 68], | 70.00th=[ 92], 80.00th=[ 125], 90.00th=[ 169], 95.00th=[ 207], | 99.00th=[ 334], 99.50th=[ 372], 99.90th=[ 709], 99.95th=[ 1116], | 99.99th=[ 1116] bw ( KiB/s): min= 7, max= 103, per=25.77%, avg=31.18, stdev=23.77, samples=385 iops : min= 1, max= 25, avg= 7.10, stdev= 5.97, samples=385 lat (msec) : 10=1.82%, 20=14.13%, 50=41.21%, 100=21.84%, 250=19.17% lat (msec) : 500=1.73%, 750=0.07%, 2000=0.03% cpu : usr=0.04%, sys=1.28%, ctx=4695, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=116KiB/s (119kB/s), 28.0KiB/s-29.5KiB/s (29.7kB/s-30.2kB/s), io=23.4MiB (24.6MB), run=205030-206589msec WRITE: bw=122KiB/s (125kB/s), 30.3KiB/s-30.0KiB/s (31.0kB/s-31.7kB/s), io=24.6MiB (25.7MB), run=205030-206589msec 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=179532: Sun Sep 13 00:14:43 2026 read: IOPS=11, BW=182KiB/s (186kB/s)(5920KiB/32581msec) clat (usec): min=47, max=174184, avg=47569.57, stdev=29061.10 lat (usec): min=47, max=174186, avg=47571.84, stdev=29060.53 clat percentiles (usec): | 1.00th=[ 56], 5.00th=[ 66], 10.00th=[ 13960], 20.00th=[ 27395], | 30.00th=[ 31589], 40.00th=[ 36439], 50.00th=[ 41681], 60.00th=[ 51119], | 70.00th=[ 58983], 80.00th=[ 70779], 90.00th=[ 87557], 95.00th=[ 98042], | 99.00th=[131597], 99.50th=[158335], 99.90th=[175113], 99.95th=[175113], | 99.99th=[175113] bw ( KiB/s): min= 30, max= 351, per=26.46%, avg=180.98, stdev=68.50, samples=64 iops : min= 1, max= 21, avg=10.44, stdev= 4.30, samples=64 write: IOPS=12, BW=195KiB/s (200kB/s)(6368KiB/32581msec); 0 zone resets clat (usec): min=1479, max=169175, avg=37426.74, stdev=37736.11 lat (usec): min=1480, max=169178, avg=37451.09, stdev=37720.49 clat percentiles (usec): | 1.00th=[ 1532], 5.00th=[ 1827], 10.00th=[ 2573], 20.00th=[ 5276], | 30.00th=[ 8094], 40.00th=[ 14484], 50.00th=[ 25297], 60.00th=[ 35914], | 70.00th=[ 49546], 80.00th=[ 64750], 90.00th=[ 91751], 95.00th=[120062], | 99.00th=[158335], 99.50th=[160433], 99.90th=[168821], 99.95th=[168821], | 99.99th=[168821] bw ( KiB/s): min= 31, max= 380, per=27.15%, avg=195.20, stdev=72.19, samples=64 iops : min= 1, max= 23, avg=11.34, stdev= 4.56, samples=64 lat (usec) : 50=0.26%, 100=3.65%, 250=0.13%, 1000=0.13% lat (msec) : 2=3.39%, 4=4.82%, 10=9.24%, 20=7.68%, 50=35.68% lat (msec) : 100=28.52%, 250=6.51% cpu : usr=0.07%, sys=4.81%, ctx=1661, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179533: Sun Sep 13 00:14:43 2026 read: IOPS=10, BW=169KiB/s (174kB/s)(5744KiB/33895msec) clat (usec): min=41, max=179262, avg=49229.17, stdev=33463.63 lat (usec): min=41, max=179264, avg=49230.78, stdev=33463.71 clat percentiles (usec): | 1.00th=[ 57], 5.00th=[ 69], 10.00th=[ 11994], 20.00th=[ 23987], | 30.00th=[ 30540], 40.00th=[ 36439], 50.00th=[ 43254], 60.00th=[ 50594], | 70.00th=[ 58983], 80.00th=[ 76022], 90.00th=[ 99091], 95.00th=[111674], | 99.00th=[170918], 99.50th=[177210], 99.90th=[179307], 99.95th=[179307], | 99.99th=[179307] bw ( KiB/s): min= 31, max= 442, per=25.54%, avg=174.71, stdev=78.15, samples=65 iops : min= 1, max= 27, avg=10.05, stdev= 4.91, samples=65 write: IOPS=12, BW=193KiB/s (198kB/s)(6544KiB/33895msec); 0 zone resets clat (usec): min=1424, max=206029, avg=38477.53, stdev=37216.72 lat (usec): min=1426, max=206031, avg=38487.85, stdev=37214.00 clat percentiles (usec): | 1.00th=[ 1565], 5.00th=[ 1958], 10.00th=[ 2868], 20.00th=[ 5211], | 30.00th=[ 9765], 40.00th=[ 21103], 50.00th=[ 29230], 60.00th=[ 39584], | 70.00th=[ 50594], 80.00th=[ 63701], 90.00th=[ 89654], 95.00th=[113771], | 99.00th=[162530], 99.50th=[185598], 99.90th=[206570], 99.95th=[206570], | 99.99th=[206570] bw ( KiB/s): min= 63, max= 412, per=27.14%, avg=195.17, stdev=75.89, samples=66 iops : min= 3, max= 25, avg=11.33, stdev= 4.77, samples=66 lat (usec) : 50=0.26%, 100=3.52%, 250=0.39%, 500=0.13% lat (msec) : 2=3.12%, 4=4.30%, 10=9.11%, 20=7.03%, 50=36.59% lat (msec) : 100=27.08%, 250=8.46% cpu : usr=0.08%, sys=4.97%, ctx=1745, 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=179534: Sun Sep 13 00:14:43 2026 read: IOPS=11, BW=179KiB/s (183kB/s)(6256KiB/35012msec) clat (usec): min=32, max=269781, avg=51534.35, stdev=38304.27 lat (usec): min=32, max=269783, avg=51535.98, stdev=38304.60 clat percentiles (usec): | 1.00th=[ 45], 5.00th=[ 64], 10.00th=[ 111], 20.00th=[ 25297], | 30.00th=[ 31327], 40.00th=[ 39060], 50.00th=[ 45876], 60.00th=[ 52691], | 70.00th=[ 62653], 80.00th=[ 71828], 90.00th=[ 98042], 95.00th=[125305], | 99.00th=[175113], 99.50th=[252707], 99.90th=[270533], 99.95th=[270533], | 99.99th=[270533] bw ( KiB/s): min= 62, max= 443, per=26.52%, avg=181.38, stdev=78.44, samples=68 iops : min= 3, max= 27, avg=10.47, stdev= 4.94, samples=68 write: IOPS=10, BW=172KiB/s (176kB/s)(6032KiB/35012msec); 0 zone resets clat (usec): min=1603, max=192028, avg=38494.34, stdev=37987.54 lat (usec): min=1605, max=192031, avg=38503.13, stdev=37984.79 clat percentiles (usec): | 1.00th=[ 1614], 5.00th=[ 1827], 10.00th=[ 2933], 20.00th=[ 5604], | 30.00th=[ 9765], 40.00th=[ 18482], 50.00th=[ 25822], 60.00th=[ 36439], | 70.00th=[ 47449], 80.00th=[ 70779], 90.00th=[ 98042], 95.00th=[117965], | 99.00th=[152044], 99.50th=[162530], 99.90th=[191890], 99.95th=[191890], | 99.99th=[191890] bw ( KiB/s): min= 63, max= 383, per=23.93%, avg=172.07, stdev=62.65, samples=68 iops : min= 3, max= 23, avg= 9.88, stdev= 3.95, samples=68 lat (usec) : 50=0.52%, 100=4.56%, 250=0.13%, 750=0.13% lat (msec) : 2=3.65%, 4=3.78%, 10=7.94%, 20=7.68%, 50=35.68% lat (msec) : 100=26.43%, 250=9.24%, 500=0.26% cpu : usr=0.07%, sys=4.39%, ctx=1635, 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=179535: Sun Sep 13 00:14:43 2026 read: IOPS=11, BW=188KiB/s (192kB/s)(6032KiB/32164msec) clat (usec): min=42, max=266688, avg=45570.75, stdev=32346.92 lat (usec): min=42, max=266689, avg=45574.75, stdev=32346.10 clat percentiles (usec): | 1.00th=[ 55], 5.00th=[ 65], 10.00th=[ 78], 20.00th=[ 24249], | 30.00th=[ 31589], 40.00th=[ 36963], 50.00th=[ 42206], 60.00th=[ 47449], | 70.00th=[ 55313], 80.00th=[ 66323], 90.00th=[ 81265], 95.00th=[ 94897], | 99.00th=[152044], 99.50th=[210764], 99.90th=[267387], 99.95th=[267387], | 99.99th=[267387] bw ( KiB/s): min= 31, max= 442, per=27.60%, avg=188.76, stdev=79.54, samples=62 iops : min= 1, max= 27, avg=10.94, stdev= 5.02, samples=62 write: IOPS=12, BW=195KiB/s (199kB/s)(6256KiB/32164msec); 0 zone resets clat (usec): min=1323, max=228493, avg=37705.14, stdev=39468.96 lat (usec): min=1324, max=228495, avg=37712.32, stdev=39464.99 clat percentiles (usec): | 1.00th=[ 1631], 5.00th=[ 1876], 10.00th=[ 2999], 20.00th=[ 4490], | 30.00th=[ 8356], 40.00th=[ 15139], 50.00th=[ 25297], 60.00th=[ 34341], | 70.00th=[ 48497], 80.00th=[ 66847], 90.00th=[ 91751], 95.00th=[121111], | 99.00th=[170918], 99.50th=[202376], 99.90th=[227541], 99.95th=[227541], | 99.99th=[227541] bw ( KiB/s): min= 63, max= 379, per=26.95%, avg=193.79, stdev=74.62, samples=63 iops : min= 3, max= 23, avg=11.25, stdev= 4.69, samples=63 lat (usec) : 50=0.26%, 100=5.21%, 250=0.65% lat (msec) : 2=2.99%, 4=5.21%, 10=8.46%, 20=7.81%, 50=36.85% lat (msec) : 100=26.30%, 250=6.12%, 500=0.13% cpu : usr=0.04%, sys=4.70%, ctx=1540, 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=684KiB/s (701kB/s), 169KiB/s-188KiB/s (174kB/s-192kB/s), io=23.4MiB (24.5MB), run=32164-35012msec WRITE: bw=720KiB/s (737kB/s), 172KiB/s-195KiB/s (176kB/s-200kB/s), io=24.6MiB (25.8MB), run=32164-35012msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179536: Sun Sep 13 00:14:55 2026 read: IOPS=7, BW=125KiB/s (128kB/s)(5920KiB/47406msec) clat (msec): min=9, max=258, avg=50.41, stdev=46.26 lat (msec): min=9, max=258, avg=50.41, stdev=46.26 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 14], 10.00th=[ 16], 20.00th=[ 21], | 30.00th=[ 23], 40.00th=[ 28], 50.00th=[ 34], 60.00th=[ 40], | 70.00th=[ 51], 80.00th=[ 71], 90.00th=[ 120], 95.00th=[ 150], | 99.00th=[ 230], 99.50th=[ 245], 99.90th=[ 259], 99.95th=[ 259], | 99.99th=[ 259] bw ( KiB/s): min= 30, max= 380, per=24.65%, avg=123.97, stdev=77.38, samples=92 iops : min= 1, max= 23, avg= 6.92, stdev= 4.86, samples=92 write: IOPS=8, BW=134KiB/s (138kB/s)(6368KiB/47406msec); 0 zone resets clat (msec): min=13, max=246, avg=72.06, stdev=43.05 lat (msec): min=13, max=246, avg=72.06, stdev=43.05 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 24], 10.00th=[ 30], 20.00th=[ 39], | 30.00th=[ 43], 40.00th=[ 51], 50.00th=[ 60], 60.00th=[ 72], | 70.00th=[ 83], 80.00th=[ 107], 90.00th=[ 133], 95.00th=[ 157], | 99.00th=[ 215], 99.50th=[ 241], 99.90th=[ 247], 99.95th=[ 247], | 99.99th=[ 247] bw ( KiB/s): min= 30, max= 436, per=25.38%, avg=134.24, stdev=78.43, samples=92 iops : min= 1, max= 27, avg= 7.58, stdev= 4.94, samples=92 lat (msec) : 10=0.13%, 20=10.42%, 50=43.62%, 100=28.52%, 250=17.19% lat (msec) : 500=0.13% cpu : usr=0.04%, sys=1.47%, ctx=1106, 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=179537: Sun Sep 13 00:14:55 2026 read: IOPS=7, BW=121KiB/s (124kB/s)(5744KiB/47569msec) clat (msec): min=7, max=318, avg=47.42, stdev=39.99 lat (msec): min=7, max=318, avg=47.43, stdev=39.99 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 13], 10.00th=[ 16], 20.00th=[ 21], | 30.00th=[ 24], 40.00th=[ 28], 50.00th=[ 32], 60.00th=[ 40], | 70.00th=[ 52], 80.00th=[ 70], 90.00th=[ 104], 95.00th=[ 142], | 99.00th=[ 165], 99.50th=[ 211], 99.90th=[ 317], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 30, max= 499, per=24.50%, avg=123.24, stdev=89.50, samples=91 iops : min= 1, max= 31, avg= 6.87, stdev= 5.64, samples=91 write: IOPS=8, BW=138KiB/s (141kB/s)(6544KiB/47569msec); 0 zone resets clat (msec): min=13, max=304, avg=73.80, stdev=48.78 lat (msec): min=13, max=304, avg=73.81, stdev=48.78 clat percentiles (msec): | 1.00th=[ 20], 5.00th=[ 27], 10.00th=[ 31], 20.00th=[ 37], | 30.00th=[ 44], 40.00th=[ 50], 50.00th=[ 58], 60.00th=[ 69], | 70.00th=[ 83], 80.00th=[ 105], 90.00th=[ 142], 95.00th=[ 182], | 99.00th=[ 249], 99.50th=[ 266], 99.90th=[ 305], 99.95th=[ 305], | 99.99th=[ 305] bw ( KiB/s): min= 30, max= 382, per=25.86%, avg=136.82, stdev=78.68, samples=94 iops : min= 1, max= 23, avg= 7.73, stdev= 4.96, samples=94 lat (msec) : 10=1.04%, 20=8.46%, 50=44.27%, 100=28.78%, 250=16.80% lat (msec) : 500=0.65% cpu : usr=0.05%, sys=1.47%, ctx=1132, 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=179538: Sun Sep 13 00:14:55 2026 read: IOPS=8, BW=134KiB/s (137kB/s)(6256KiB/46636msec) clat (msec): min=7, max=261, avg=46.00, stdev=39.69 lat (msec): min=7, max=261, avg=46.00, stdev=39.69 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 15], 20.00th=[ 19], | 30.00th=[ 23], 40.00th=[ 28], 50.00th=[ 33], 60.00th=[ 39], | 70.00th=[ 47], 80.00th=[ 65], 90.00th=[ 100], 95.00th=[ 127], | 99.00th=[ 218], 99.50th=[ 224], 99.90th=[ 262], 99.95th=[ 262], | 99.99th=[ 262] bw ( KiB/s): min= 31, max= 443, per=26.93%, avg=135.47, stdev=86.35, samples=91 iops : min= 1, max= 27, avg= 7.65, stdev= 5.44, samples=91 write: IOPS=8, BW=129KiB/s (132kB/s)(6032KiB/46636msec); 0 zone resets clat (msec): min=17, max=285, avg=75.42, stdev=47.02 lat (msec): min=17, max=285, avg=75.42, stdev=47.02 clat percentiles (msec): | 1.00th=[ 22], 5.00th=[ 27], 10.00th=[ 33], 20.00th=[ 39], | 30.00th=[ 45], 40.00th=[ 53], 50.00th=[ 62], 60.00th=[ 72], | 70.00th=[ 85], 80.00th=[ 109], 90.00th=[ 142], 95.00th=[ 176], | 99.00th=[ 230], 99.50th=[ 253], 99.90th=[ 288], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 31, max= 374, per=24.20%, avg=128.02, stdev=68.24, samples=92 iops : min= 1, max= 23, avg= 7.18, stdev= 4.27, samples=92 lat (msec) : 10=0.91%, 20=10.94%, 50=42.84%, 100=29.04%, 250=15.89% lat (msec) : 500=0.39% cpu : usr=0.04%, sys=1.47%, ctx=1098, 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=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=179539: Sun Sep 13 00:14:55 2026 read: IOPS=8, BW=129KiB/s (132kB/s)(6032KiB/46774msec) clat (msec): min=7, max=307, avg=48.00, stdev=40.54 lat (msec): min=7, max=307, avg=48.00, stdev=40.54 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 14], 10.00th=[ 16], 20.00th=[ 21], | 30.00th=[ 25], 40.00th=[ 28], 50.00th=[ 33], 60.00th=[ 42], | 70.00th=[ 51], 80.00th=[ 70], 90.00th=[ 100], 95.00th=[ 133], | 99.00th=[ 218], 99.50th=[ 241], 99.90th=[ 309], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 31, max= 383, per=26.82%, avg=134.90, stdev=78.51, samples=87 iops : min= 1, max= 23, avg= 7.60, stdev= 4.91, samples=87 write: IOPS=8, BW=134KiB/s (137kB/s)(6256KiB/46774msec); 0 zone resets clat (msec): min=13, max=257, avg=72.38, stdev=44.44 lat (msec): min=13, max=257, avg=72.39, stdev=44.44 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 26], 10.00th=[ 31], 20.00th=[ 39], | 30.00th=[ 43], 40.00th=[ 50], 50.00th=[ 60], 60.00th=[ 70], | 70.00th=[ 86], 80.00th=[ 106], 90.00th=[ 129], 95.00th=[ 157], | 99.00th=[ 243], 99.50th=[ 249], 99.90th=[ 257], 99.95th=[ 257], | 99.99th=[ 257] bw ( KiB/s): min= 31, max= 436, per=25.46%, avg=134.69, stdev=73.88, samples=91 iops : min= 1, max= 27, avg= 7.60, stdev= 4.66, samples=91 lat (msec) : 10=0.91%, 20=8.98%, 50=44.92%, 100=29.17%, 250=15.76% lat (msec) : 500=0.26% cpu : usr=0.05%, sys=1.40%, ctx=1074, 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=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=504KiB/s (516kB/s), 121KiB/s-134KiB/s (124kB/s-137kB/s), io=23.4MiB (24.5MB), run=46636-47569msec WRITE: bw=530KiB/s (542kB/s), 129KiB/s-138KiB/s (132kB/s-141kB/s), io=24.6MiB (25.8MB), run=46636-47569msec 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=179553: Sun Sep 13 00:15:14 2026 read: IOPS=1, BW=2031KiB/s (2080kB/s)(7168KiB/3529msec) clat (usec): min=739, max=405702, avg=196286.52, stdev=148137.27 lat (usec): min=742, max=405704, avg=196288.69, stdev=148137.02 clat percentiles (usec): | 1.00th=[ 742], 5.00th=[ 742], 10.00th=[ 742], 20.00th=[ 2114], | 30.00th=[191890], 40.00th=[191890], 50.00th=[246416], 60.00th=[254804], | 70.00th=[254804], 80.00th=[274727], 90.00th=[404751], 95.00th=[404751], | 99.00th=[404751], 99.50th=[404751], 99.90th=[404751], 99.95th=[404751], | 99.99th=[404751] bw ( KiB/s): min= 1818, max= 4047, per=67.45%, avg=2391.60, stdev=930.00, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 write: IOPS=1, BW=1451KiB/s (1486kB/s)(5120KiB/3529msec); 0 zone resets clat (msec): min=231, max=675, avg=407.43, stdev=175.22 lat (msec): min=231, max=675, avg=407.61, stdev=175.38 clat percentiles (msec): | 1.00th=[ 232], 5.00th=[ 232], 10.00th=[ 232], 20.00th=[ 232], | 30.00th=[ 275], 40.00th=[ 275], 50.00th=[ 405], 60.00th=[ 405], | 70.00th=[ 456], 80.00th=[ 456], 90.00th=[ 676], 95.00th=[ 676], | 99.00th=[ 676], 99.50th=[ 676], 99.90th=[ 676], 99.95th=[ 676], | 99.99th=[ 676] bw ( KiB/s): min= 1914, max= 3637, per=50.90%, avg=2527.33, stdev=962.78, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (usec) : 750=8.33% lat (msec) : 4=8.33%, 250=25.00%, 500=50.00%, 750=8.33% cpu : usr=0.11%, sys=11.45%, ctx=202, 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=179556: Sun Sep 13 00:15:14 2026 read: IOPS=0, BW=369KiB/s (378kB/s)(2048KiB/5543msec) clat (msec): min=339, max=347, avg=343.07, stdev= 5.68 lat (msec): min=339, max=347, avg=343.07, stdev= 5.68 clat percentiles (msec): | 1.00th=[ 338], 5.00th=[ 338], 10.00th=[ 338], 20.00th=[ 338], | 30.00th=[ 338], 40.00th=[ 338], 50.00th=[ 338], 60.00th=[ 347], | 70.00th=[ 347], 80.00th=[ 347], 90.00th=[ 347], 95.00th=[ 347], | 99.00th=[ 347], 99.50th=[ 347], 99.90th=[ 347], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 1961, max= 2039, per=56.40%, avg=2000.00, stdev=55.15, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1847KiB/s (1892kB/s)(10.0MiB/5543msec); 0 zone resets clat (msec): min=246, max=725, avg=453.40, stdev=154.07 lat (msec): min=246, max=726, avg=453.70, stdev=154.06 clat percentiles (msec): | 1.00th=[ 247], 5.00th=[ 247], 10.00th=[ 247], 20.00th=[ 296], | 30.00th=[ 326], 40.00th=[ 368], 50.00th=[ 376], 60.00th=[ 514], | 70.00th=[ 531], 80.00th=[ 550], 90.00th=[ 609], 95.00th=[ 726], | 99.00th=[ 726], 99.50th=[ 726], 99.90th=[ 726], 99.95th=[ 726], | 99.99th=[ 726] bw ( KiB/s): min= 1914, max= 3637, per=44.96%, avg=2232.29, stdev=621.41, samples=7 iops : min= 1, max= 3, avg= 1.43, stdev= 0.79, samples=7 lat (msec) : 250=8.33%, 500=50.00%, 750=41.67% cpu : usr=0.07%, sys=10.95%, ctx=196, 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=179558: Sun Sep 13 00:15:14 2026 read: IOPS=1, BW=1328KiB/s (1359kB/s)(6144KiB/4628msec) clat (usec): min=1712, max=332921, avg=123565.85, stdev=144633.74 lat (usec): min=1714, max=332923, avg=123567.57, stdev=144633.59 clat percentiles (usec): | 1.00th=[ 1713], 5.00th=[ 1713], 10.00th=[ 1713], 20.00th=[ 2704], | 30.00th=[ 2704], 40.00th=[ 2835], 50.00th=[ 2835], 60.00th=[152044], | 70.00th=[250610], 80.00th=[250610], 90.00th=[333448], 95.00th=[333448], | 99.00th=[333448], 99.50th=[333448], 99.90th=[333448], 99.95th=[333448], | 99.99th=[333448] bw ( KiB/s): min= 1950, max= 3930, per=90.92%, avg=3224.00, stdev=1105.47, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=1, BW=1328KiB/s (1359kB/s)(6144KiB/4628msec); 0 zone resets clat (msec): min=355, max=951, avg=577.03, stdev=242.87 lat (msec): min=355, max=951, avg=577.14, stdev=242.82 clat percentiles (msec): | 1.00th=[ 355], 5.00th=[ 355], 10.00th=[ 355], 20.00th=[ 359], | 30.00th=[ 359], 40.00th=[ 426], 50.00th=[ 426], 60.00th=[ 600], | 70.00th=[ 768], 80.00th=[ 768], 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= 1896, max= 2035, per=39.80%, avg=1976.20, stdev=59.50, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 2=8.33%, 4=16.67%, 250=16.67%, 500=33.33%, 750=8.33% lat (msec) : 1000=16.67% cpu : usr=0.04%, sys=9.03%, ctx=211, 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=179559: Sun Sep 13 00:15:14 2026 read: IOPS=0, BW=887KiB/s (908kB/s)(5120KiB/5774msec) clat (usec): min=468, max=375002, avg=172917.04, stdev=165074.43 lat (usec): min=469, max=375003, avg=172918.38, stdev=165074.30 clat percentiles (usec): | 1.00th=[ 469], 5.00th=[ 469], 10.00th=[ 469], 20.00th=[ 469], | 30.00th=[ 3621], 40.00th=[ 3621], 50.00th=[240124], 60.00th=[240124], | 70.00th=[244319], 80.00th=[244319], 90.00th=[375391], 95.00th=[375391], | 99.00th=[375391], 99.50th=[375391], 99.90th=[375391], 99.95th=[375391], | 99.99th=[375391] bw ( KiB/s): min= 1961, max= 6023, per=100.00%, avg=3992.00, stdev=2872.27, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=1, BW=1241KiB/s (1271kB/s)(7168KiB/5774msec); 0 zone resets clat (msec): min=158, max=1322, avg=635.71, stdev=444.84 lat (msec): min=158, max=1322, avg=635.80, stdev=444.86 clat percentiles (msec): | 1.00th=[ 159], 5.00th=[ 159], 10.00th=[ 159], 20.00th=[ 275], | 30.00th=[ 334], 40.00th=[ 334], 50.00th=[ 527], 60.00th=[ 693], | 70.00th=[ 693], 80.00th=[ 1133], 90.00th=[ 1318], 95.00th=[ 1318], | 99.00th=[ 1318], 99.50th=[ 1318], 99.90th=[ 1318], 99.95th=[ 1318], | 99.99th=[ 1318] bw ( KiB/s): min= 1896, max= 4087, per=48.05%, avg=2385.80, stdev=952.29, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (usec) : 500=8.33% lat (msec) : 4=8.33%, 250=25.00%, 500=25.00%, 750=16.67%, 2000=16.67% cpu : usr=0.03%, sys=8.09%, ctx=137, 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=3547KiB/s (3632kB/s), 369KiB/s-2031KiB/s (378kB/s-2080kB/s), io=20.0MiB (20.0MB), run=3529-5774msec WRITE: bw=4966KiB/s (5085kB/s), 1241KiB/s-1847KiB/s (1271kB/s-1892kB/s), io=28.0MiB (29.4MB), run=3529-5774msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179552: Sun Sep 13 00:15:14 2026 read: IOPS=1, BW=1417KiB/s (1451kB/s)(7168KiB/5057msec) clat (msec): min=122, max=418, avg=247.12, stdev=109.65 lat (msec): min=122, max=418, avg=247.12, stdev=109.65 clat percentiles (msec): | 1.00th=[ 123], 5.00th=[ 123], 10.00th=[ 123], 20.00th=[ 146], | 30.00th=[ 167], 40.00th=[ 167], 50.00th=[ 266], 60.00th=[ 266], | 70.00th=[ 266], 80.00th=[ 347], 90.00th=[ 418], 95.00th=[ 418], | 99.00th=[ 418], 99.50th=[ 418], 99.90th=[ 418], 99.95th=[ 418], | 99.99th=[ 418] bw ( KiB/s): min= 1486, max= 4039, per=90.69%, avg=2806.00, stdev=1254.78, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 write: IOPS=0, BW=1012KiB/s (1037kB/s)(5120KiB/5057msec); 0 zone resets clat (msec): min=367, max=990, avg=609.54, stdev=260.67 lat (msec): min=367, max=991, avg=609.65, stdev=260.68 clat percentiles (msec): | 1.00th=[ 368], 5.00th=[ 368], 10.00th=[ 368], 20.00th=[ 368], | 30.00th=[ 460], 40.00th=[ 460], 50.00th=[ 464], 60.00th=[ 464], | 70.00th=[ 768], 80.00th=[ 768], 90.00th=[ 995], 95.00th=[ 995], | 99.00th=[ 995], 99.50th=[ 995], 99.90th=[ 995], 99.95th=[ 995], | 99.99th=[ 995] bw ( KiB/s): min= 1896, max= 2048, per=45.52%, avg=1971.50, stdev=63.59, samples=4 iops : min= 1, max= 2, avg= 1.25, stdev= 0.50, samples=4 lat (msec) : 250=25.00%, 500=58.33%, 1000=16.67% cpu : usr=0.08%, sys=4.29%, ctx=102, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179554: Sun Sep 13 00:15:14 2026 read: IOPS=0, BW=309KiB/s (317kB/s)(2048KiB/6619msec) clat (msec): min=142, max=262, avg=202.32, stdev=85.05 lat (msec): min=142, max=262, avg=202.32, stdev=85.05 clat percentiles (msec): | 1.00th=[ 142], 5.00th=[ 142], 10.00th=[ 142], 20.00th=[ 142], | 30.00th=[ 142], 40.00th=[ 142], 50.00th=[ 142], 60.00th=[ 264], | 70.00th=[ 264], 80.00th=[ 264], 90.00th=[ 264], 95.00th=[ 264], | 99.00th=[ 264], 99.50th=[ 264], 99.90th=[ 264], 99.95th=[ 264], | 99.99th=[ 264] bw ( KiB/s): min= 2015, max= 2027, per=65.32%, avg=2021.00, stdev= 8.49, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1547KiB/s (1584kB/s)(10.0MiB/6619msec); 0 zone resets clat (msec): min=114, max=1229, avg=612.47, stdev=351.90 lat (msec): min=114, max=1229, avg=612.59, stdev=351.88 clat percentiles (msec): | 1.00th=[ 114], 5.00th=[ 114], 10.00th=[ 114], 20.00th=[ 197], | 30.00th=[ 384], 40.00th=[ 523], 50.00th=[ 531], 60.00th=[ 575], | 70.00th=[ 709], 80.00th=[ 827], 90.00th=[ 1045], 95.00th=[ 1234], | 99.00th=[ 1234], 99.50th=[ 1234], 99.90th=[ 1234], 99.95th=[ 1234], | 99.99th=[ 1234] bw ( KiB/s): min= 1851, max= 2048, per=45.78%, avg=1982.71, stdev=67.00, samples=7 iops : min= 1, max= 2, avg= 1.14, stdev= 0.38, samples=7 lat (msec) : 250=25.00%, 500=16.67%, 750=33.33%, 1000=8.33%, 2000=16.67% cpu : usr=0.03%, sys=3.32%, ctx=98, 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=179555: Sun Sep 13 00:15:14 2026 read: IOPS=0, BW=973KiB/s (996kB/s)(6144KiB/6315msec) clat (msec): min=136, max=1318, avg=452.97, stdev=442.43 lat (msec): min=136, max=1318, avg=452.97, stdev=442.43 clat percentiles (msec): | 1.00th=[ 138], 5.00th=[ 138], 10.00th=[ 138], 20.00th=[ 140], | 30.00th=[ 140], 40.00th=[ 288], 50.00th=[ 288], 60.00th=[ 401], | 70.00th=[ 435], 80.00th=[ 435], 90.00th=[ 1318], 95.00th=[ 1318], | 99.00th=[ 1318], 99.50th=[ 1318], 99.90th=[ 1318], 99.95th=[ 1318], | 99.99th=[ 1318] bw ( KiB/s): min= 1851, max= 4055, per=80.45%, avg=2489.25, stdev=1047.23, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 write: IOPS=0, BW=973KiB/s (996kB/s)(6144KiB/6315msec); 0 zone resets clat (msec): min=147, max=899, avg=552.67, stdev=307.82 lat (msec): min=147, max=899, avg=552.78, stdev=307.81 clat percentiles (msec): | 1.00th=[ 148], 5.00th=[ 148], 10.00th=[ 148], 20.00th=[ 241], | 30.00th=[ 241], 40.00th=[ 584], 50.00th=[ 584], 60.00th=[ 592], | 70.00th=[ 852], 80.00th=[ 852], 90.00th=[ 902], 95.00th=[ 902], | 99.00th=[ 902], 99.50th=[ 902], 99.90th=[ 902], 99.95th=[ 902], | 99.99th=[ 902] bw ( KiB/s): min= 1965, max= 4096, per=55.80%, avg=2416.80, stdev=939.08, samples=5 iops : min= 1, max= 4, avg= 1.60, stdev= 1.34, samples=5 lat (msec) : 250=33.33%, 500=25.00%, 750=16.67%, 1000=16.67%, 2000=8.33% cpu : usr=0.05%, sys=2.31%, ctx=73, 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=179557: Sun Sep 13 00:15:14 2026 read: IOPS=0, BW=900KiB/s (922kB/s)(5120KiB/5688msec) clat (msec): min=197, max=827, avg=466.70, stdev=255.94 lat (msec): min=197, max=827, avg=466.71, stdev=255.94 clat percentiles (msec): | 1.00th=[ 199], 5.00th=[ 199], 10.00th=[ 199], 20.00th=[ 199], | 30.00th=[ 288], 40.00th=[ 288], 50.00th=[ 401], 60.00th=[ 401], | 70.00th=[ 617], 80.00th=[ 617], 90.00th=[ 827], 95.00th=[ 827], | 99.00th=[ 827], 99.50th=[ 827], 99.90th=[ 827], 99.95th=[ 827], | 99.99th=[ 827] bw ( KiB/s): min= 1896, max= 3992, per=84.85%, avg=2625.33, stdev=1184.46, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=1, BW=1260KiB/s (1290kB/s)(7168KiB/5688msec); 0 zone resets clat (msec): min=132, max=939, avg=417.77, stdev=266.64 lat (msec): min=132, max=939, avg=417.98, stdev=266.67 clat percentiles (msec): | 1.00th=[ 133], 5.00th=[ 133], 10.00th=[ 133], 20.00th=[ 201], | 30.00th=[ 313], 40.00th=[ 313], 50.00th=[ 363], 60.00th=[ 468], | 70.00th=[ 468], 80.00th=[ 510], 90.00th=[ 944], 95.00th=[ 944], | 99.00th=[ 944], 99.50th=[ 944], 99.90th=[ 944], 99.95th=[ 944], | 99.99th=[ 944] bw ( KiB/s): min= 1851, max= 4087, per=55.17%, avg=2389.60, stdev=951.94, samples=5 iops : min= 1, max= 3, avg= 1.60, stdev= 0.89, samples=5 lat (msec) : 250=25.00%, 500=41.67%, 750=16.67%, 1000=16.67% cpu : usr=0.02%, sys=3.55%, ctx=112, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=3094KiB/s (3168kB/s), 309KiB/s-1417KiB/s (317kB/s-1451kB/s), io=20.0MiB (20.0MB), run=5057-6619msec WRITE: bw=4332KiB/s (4436kB/s), 973KiB/s-1547KiB/s (996kB/s-1584kB/s), io=28.0MiB (29.4MB), run=5057-6619msec 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=179567: Sun Sep 13 00:15:35 2026 read: IOPS=0, BW=2882KiB/s (2952kB/s)(12.0MiB/4263msec) clat (msec): min=587, max=2553, avg=1328.42, stdev=1068.38 lat (msec): min=587, max=2553, avg=1328.43, stdev=1068.38 clat percentiles (msec): | 1.00th=[ 592], 5.00th=[ 592], 10.00th=[ 592], 20.00th=[ 592], | 30.00th=[ 592], 40.00th=[ 844], 50.00th=[ 844], 60.00th=[ 844], | 70.00th=[ 2567], 80.00th=[ 2567], 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= 8126, max= 8159, per=100.00%, avg=8142.50, stdev=23.33, 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=0.12%, sys=6.97%, ctx=202, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179568: Sun Sep 13 00:15:35 2026 read: IOPS=0, BW=705KiB/s (722kB/s)(4096KiB/5809msec) clat (nsec): min=3163.6M, max=3163.6M, avg=3163615972.00, stdev= 0.00 lat (nsec): min=3163.6M, max=3163.6M, avg=3163618959.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 3171], 5.00th=[ 3171], 10.00th=[ 3171], 20.00th=[ 3171], | 30.00th=[ 3171], 40.00th=[ 3171], 50.00th=[ 3171], 60.00th=[ 3171], | 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= 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=1410KiB/s (1444kB/s)(8192KiB/5809msec); 0 zone resets clat (msec): min=818, max=1538, avg=1178.46, stdev=508.81 lat (msec): min=819, max=1540, avg=1179.70, stdev=509.98 clat percentiles (msec): | 1.00th=[ 818], 5.00th=[ 818], 10.00th=[ 818], 20.00th=[ 818], | 30.00th=[ 818], 40.00th=[ 818], 50.00th=[ 818], 60.00th=[ 1536], | 70.00th=[ 1536], 80.00th=[ 1536], 90.00th=[ 1536], 95.00th=[ 1536], | 99.00th=[ 1536], 99.50th=[ 1536], 99.90th=[ 1536], 99.95th=[ 1536], | 99.99th=[ 1536] 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=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=2.75%, ctx=447, 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=179569: Sun Sep 13 00:15:35 2026 write: IOPS=0, BW=1969KiB/s (2016kB/s)(12.0MiB/6241msec); 0 zone resets clat (msec): min=586, max=4559, avg=1974.09, stdev=2241.47 lat (msec): min=589, max=4560, avg=1975.37, stdev=2240.72 clat percentiles (msec): | 1.00th=[ 584], 5.00th=[ 584], 10.00th=[ 584], 20.00th=[ 584], | 30.00th=[ 584], 40.00th=[ 776], 50.00th=[ 776], 60.00th=[ 776], | 70.00th=[ 4530], 80.00th=[ 4530], 90.00th=[ 4530], 95.00th=[ 4530], | 99.00th=[ 4530], 99.50th=[ 4530], 99.90th=[ 4530], 99.95th=[ 4530], | 99.99th=[ 4530] bw ( KiB/s): min= 7922, max= 8159, per=100.00%, avg=8040.50, stdev=167.58, 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=0.02%, sys=1.44%, ctx=55, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179570: Sun Sep 13 00:15:35 2026 write: IOPS=0, BW=1987KiB/s (2035kB/s)(12.0MiB/6184msec); 0 zone resets clat (msec): min=667, max=3586, avg=1979.61, stdev=1481.79 lat (msec): min=668, max=3586, avg=1980.84, stdev=1481.35 clat percentiles (msec): | 1.00th=[ 667], 5.00th=[ 667], 10.00th=[ 667], 20.00th=[ 667], | 30.00th=[ 667], 40.00th=[ 1687], 50.00th=[ 1687], 60.00th=[ 1687], | 70.00th=[ 3574], 80.00th=[ 3574], 90.00th=[ 3574], 95.00th=[ 3574], | 99.00th=[ 3574], 99.50th=[ 3574], 99.90th=[ 3574], 99.95th=[ 3574], | 99.99th=[ 3574] bw ( KiB/s): min= 8094, max= 8126, per=100.00%, avg=8110.00, stdev=22.63, 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=0.05%, sys=1.70%, ctx=45, 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=2820KiB/s (2888kB/s), 705KiB/s-2882KiB/s (722kB/s-2952kB/s), io=16.0MiB (16.8MB), run=4263-5809msec WRITE: bw=5250KiB/s (5376kB/s), 1410KiB/s-1987KiB/s (1444kB/s-2035kB/s), io=32.0MiB (33.6MB), run=5809-6241msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179572: Sun Sep 13 00:15:35 2026 read: IOPS=0, BW=2416KiB/s (2474kB/s)(12.0MiB/5087msec) clat (msec): min=219, max=3110, avg=1672.40, stdev=1445.35 lat (msec): min=219, max=3110, avg=1672.40, stdev=1445.35 clat percentiles (msec): | 1.00th=[ 220], 5.00th=[ 220], 10.00th=[ 220], 20.00th=[ 220], | 30.00th=[ 220], 40.00th=[ 1687], 50.00th=[ 1687], 60.00th=[ 1687], | 70.00th=[ 3104], 80.00th=[ 3104], 90.00th=[ 3104], 95.00th=[ 3104], | 99.00th=[ 3104], 99.50th=[ 3104], 99.90th=[ 3104], 99.95th=[ 3104], | 99.99th=[ 3104] bw ( KiB/s): min= 8126, max= 8159, per=100.00%, avg=8142.50, stdev=23.33, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 250=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=1.99%, ctx=45, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=179573: Sun Sep 13 00:15:35 2026 read: IOPS=0, BW=668KiB/s (684kB/s)(4096KiB/6131msec) clat (nsec): min=4666.5M, max=4666.5M, avg=4666459403.00, stdev= 0.00 lat (nsec): min=4666.5M, max=4666.5M, avg=4666461765.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 4665], 5.00th=[ 4665], 10.00th=[ 4665], 20.00th=[ 4665], | 30.00th=[ 4665], 40.00th=[ 4665], 50.00th=[ 4665], 60.00th=[ 4665], | 70.00th=[ 4665], 80.00th=[ 4665], 90.00th=[ 4665], 95.00th=[ 4665], | 99.00th=[ 4665], 99.50th=[ 4665], 99.90th=[ 4665], 99.95th=[ 4665], | 99.99th=[ 4665] 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=1336KiB/s (1368kB/s)(8192KiB/6131msec); 0 zone resets clat (msec): min=539, max=806, avg=673.24, stdev=188.60 lat (msec): min=540, max=806, avg=673.62, stdev=188.63 clat percentiles (msec): | 1.00th=[ 542], 5.00th=[ 542], 10.00th=[ 542], 20.00th=[ 542], | 30.00th=[ 542], 40.00th=[ 542], 50.00th=[ 542], 60.00th=[ 810], | 70.00th=[ 810], 80.00th=[ 810], 90.00th=[ 810], 95.00th=[ 810], | 99.00th=[ 810], 99.50th=[ 810], 99.90th=[ 810], 99.95th=[ 810], | 99.99th=[ 810] 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=33.33%, 1000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=1.45%, ctx=48, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179574: Sun Sep 13 00:15:35 2026 write: IOPS=0, BW=1953KiB/s (2000kB/s)(12.0MiB/6293msec); 0 zone resets clat (msec): min=394, max=4971, avg=1994.53, stdev=2580.88 lat (msec): min=395, max=4972, avg=1994.93, stdev=2580.99 clat percentiles (msec): | 1.00th=[ 397], 5.00th=[ 397], 10.00th=[ 397], 20.00th=[ 397], | 30.00th=[ 397], 40.00th=[ 617], 50.00th=[ 617], 60.00th=[ 617], | 70.00th=[ 5000], 80.00th=[ 5000], 90.00th=[ 5000], 95.00th=[ 5000], | 99.00th=[ 5000], 99.50th=[ 5000], 99.90th=[ 5000], 99.95th=[ 5000], | 99.99th=[ 5000] bw ( KiB/s): min=16318, max=16318, per=100.00%, avg=16318.00, stdev= 0.00, samples=1 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 750=33.33%, >=2000=33.33% cpu : usr=0.02%, sys=1.84%, ctx=56, 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=179575: Sun Sep 13 00:15:35 2026 write: IOPS=0, BW=1984KiB/s (2032kB/s)(12.0MiB/6193msec); 0 zone resets clat (msec): min=624, max=3795, avg=2000.34, stdev=1626.33 lat (msec): min=625, max=3795, avg=2000.75, stdev=1626.33 clat percentiles (msec): | 1.00th=[ 625], 5.00th=[ 625], 10.00th=[ 625], 20.00th=[ 625], | 30.00th=[ 625], 40.00th=[ 1586], 50.00th=[ 1586], 60.00th=[ 1586], | 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= 7627, max= 8110, per=100.00%, avg=7868.50, stdev=341.53, 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=0.11%, sys=1.81%, ctx=58, 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=2672KiB/s (2736kB/s), 668KiB/s-2416KiB/s (684kB/s-2474kB/s), io=16.0MiB (16.8MB), run=5087-6131msec WRITE: bw=5207KiB/s (5332kB/s), 1336KiB/s-1984KiB/s (1368kB/s-2032kB/s), io=32.0MiB (33.6MB), run=6131-6293msec