== sanity test 398b: DIO and buffer IO race ============== 17:10:45 (1787605845) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 6.49122 s, 7.8 MB/s mix direct rw 4096 by fio with 4 jobs... mix buffer rw 4096 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=144415: Mon Aug 24 17:13:44 2026 read: IOPS=9, BW=38.9KiB/s (39.8kB/s)(5992KiB/154226msec) clat (usec): min=36, max=533233, avg=49652.67, stdev=41259.13 lat (usec): min=36, max=533235, avg=49662.86, stdev=41254.81 clat percentiles (usec): | 1.00th=[ 51], 5.00th=[ 65], 10.00th=[ 99], 20.00th=[ 20841], | 30.00th=[ 27657], 40.00th=[ 34341], 50.00th=[ 40633], 60.00th=[ 49546], | 70.00th=[ 58983], 80.00th=[ 73925], 90.00th=[ 98042], 95.00th=[123208], | 99.00th=[185598], 99.50th=[221250], 99.90th=[350225], 99.95th=[534774], | 99.99th=[534774] bw ( KiB/s): min= 7, max= 112, per=25.73%, avg=38.85, stdev=18.07, samples=300 iops : min= 1, max= 28, avg= 9.04, stdev= 4.55, samples=300 write: IOPS=10, BW=40.8KiB/s (41.8kB/s)(6296KiB/154226msec); 0 zone resets clat (usec): min=1004, max=755414, avg=50587.84, stdev=54243.90 lat (usec): min=1005, max=755416, avg=50592.14, stdev=54243.43 clat percentiles (usec): | 1.00th=[ 1139], 5.00th=[ 1385], 10.00th=[ 1991], 20.00th=[ 5604], | 30.00th=[ 12518], 40.00th=[ 25297], 50.00th=[ 36963], 60.00th=[ 51119], | 70.00th=[ 66847], 80.00th=[ 85459], 90.00th=[114820], 95.00th=[149947], | 99.00th=[231736], 99.50th=[250610], 99.90th=[557843], 99.95th=[759170], | 99.99th=[759170] bw ( KiB/s): min= 5, max= 103, per=25.55%, avg=40.38, stdev=19.09, samples=303 iops : min= 1, max= 25, avg= 9.43, stdev= 4.78, samples=303 lat (usec) : 50=0.46%, 100=4.43%, 250=0.55%, 750=0.03% lat (msec) : 2=5.31%, 4=2.90%, 10=6.09%, 20=7.98%, 50=32.00% lat (msec) : 100=28.58%, 250=11.30%, 500=0.29%, 750=0.07%, 1000=0.03% cpu : usr=0.07%, sys=4.51%, ctx=6641, 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=144416: Mon Aug 24 17:13:44 2026 read: IOPS=9, BW=37.4KiB/s (38.3kB/s)(5940KiB/158866msec) clat (usec): min=25, max=594911, avg=50338.23, stdev=42185.98 lat (usec): min=26, max=594912, avg=50357.19, stdev=42200.59 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 69], 10.00th=[ 227], 20.00th=[ 22152], | 30.00th=[ 28705], 40.00th=[ 34866], 50.00th=[ 42730], 60.00th=[ 50594], | 70.00th=[ 61604], 80.00th=[ 74974], 90.00th=[ 93848], 95.00th=[119014], | 99.00th=[200279], 99.50th=[223347], 99.90th=[476054], 99.95th=[591397], | 99.99th=[591397] bw ( KiB/s): min= 5, max= 103, per=24.85%, avg=37.52, stdev=18.42, samples=307 iops : min= 1, max= 25, avg= 8.71, stdev= 4.65, samples=307 write: IOPS=9, BW=39.0KiB/s (40.9kB/s)(6348KiB/158866msec); 0 zone resets clat (usec): min=962, max=531019, avg=52837.99, stdev=56796.39 lat (usec): min=963, max=531020, avg=52844.44, stdev=56793.45 clat percentiles (usec): | 1.00th=[ 1188], 5.00th=[ 1385], 10.00th=[ 1844], 20.00th=[ 5276], | 30.00th=[ 11076], 40.00th=[ 23725], 50.00th=[ 39060], 60.00th=[ 51643], | 70.00th=[ 67634], 80.00th=[ 87557], 90.00th=[124257], 95.00th=[158335], | 99.00th=[256902], 99.50th=[278922], 99.90th=[438305], 99.95th=[530580], | 99.99th=[530580] bw ( KiB/s): min= 7, max= 126, per=25.07%, avg=39.61, stdev=20.13, samples=311 iops : min= 1, max= 31, avg= 9.23, stdev= 5.09, samples=311 lat (usec) : 50=0.23%, 100=4.17%, 250=0.49%, 500=0.13%, 1000=0.07% lat (msec) : 2=5.60%, 4=3.19%, 10=6.18%, 20=7.49%, 50=31.67% lat (msec) : 100=28.42%, 250=11.65%, 500=0.65%, 750=0.07% cpu : usr=0.08%, sys=4.55%, ctx=6661, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144417: Mon Aug 24 17:13:44 2026 read: IOPS=9, BW=38.8KiB/s (39.7kB/s)(6028KiB/155542msec) clat (usec): min=36, max=313352, avg=49359.64, stdev=39029.48 lat (usec): min=36, max=313354, avg=49362.67, stdev=39028.67 clat percentiles (usec): | 1.00th=[ 55], 5.00th=[ 68], 10.00th=[ 104], 20.00th=[ 21103], | 30.00th=[ 27919], 40.00th=[ 34341], 50.00th=[ 41157], 60.00th=[ 50070], | 70.00th=[ 61080], 80.00th=[ 73925], 90.00th=[ 96994], 95.00th=[124257], | 99.00th=[191890], 99.50th=[221250], 99.90th=[274727], 99.95th=[312476], | 99.99th=[312476] bw ( KiB/s): min= 7, max= 104, per=26.04%, avg=39.32, stdev=18.67, samples=298 iops : min= 1, max= 26, avg= 9.16, stdev= 4.71, samples=298 write: IOPS=10, BW=40.2KiB/s (41.2kB/s)(6260KiB/155542msec); 0 zone resets clat (usec): min=935, max=684837, avg=51729.21, stdev=57657.09 lat (usec): min=937, max=684839, avg=51731.79, stdev=57656.88 clat percentiles (usec): | 1.00th=[ 1106], 5.00th=[ 1385], 10.00th=[ 2114], 20.00th=[ 5538], | 30.00th=[ 10159], 40.00th=[ 22414], 50.00th=[ 36439], 60.00th=[ 51119], | 70.00th=[ 65799], 80.00th=[ 86508], 90.00th=[123208], 95.00th=[152044], | 99.00th=[248513], 99.50th=[287310], 99.90th=[591397], 99.95th=[683672], | 99.99th=[683672] bw ( KiB/s): min= 7, max= 95, per=25.38%, avg=40.11, stdev=18.67, samples=303 iops : min= 1, max= 23, avg= 9.35, stdev= 4.71, samples=303 lat (usec) : 50=0.23%, 100=4.56%, 250=0.75%, 500=0.07%, 750=0.07% lat (usec) : 1000=0.10% lat (msec) : 2=4.85%, 4=3.12%, 10=7.29%, 20=7.45%, 50=31.28% lat (msec) : 100=27.77%, 250=11.88%, 500=0.52%, 750=0.07% cpu : usr=0.07%, sys=4.49%, ctx=6670, 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=144418: Mon Aug 24 17:13:44 2026 read: IOPS=9, BW=39.0KiB/s (39.0kB/s)(6052KiB/155047msec) clat (usec): min=33, max=381128, avg=49011.82, stdev=40921.16 lat (usec): min=33, max=381130, avg=49017.44, stdev=40919.14 clat percentiles (usec): | 1.00th=[ 49], 5.00th=[ 65], 10.00th=[ 86], 20.00th=[ 20579], | 30.00th=[ 27132], 40.00th=[ 33162], 50.00th=[ 41157], 60.00th=[ 49546], | 70.00th=[ 60031], 80.00th=[ 73925], 90.00th=[ 95945], 95.00th=[120062], | 99.00th=[187696], 99.50th=[267387], 99.90th=[333448], 99.95th=[379585], | 99.99th=[379585] bw ( KiB/s): min= 7, max= 95, per=26.00%, avg=39.25, stdev=17.37, samples=299 iops : min= 1, max= 23, avg= 9.14, stdev= 4.37, samples=299 write: IOPS=10, BW=40.2KiB/s (41.2kB/s)(6236KiB/155047msec); 0 zone resets clat (usec): min=1046, max=673985, avg=51736.85, stdev=53955.82 lat (usec): min=1048, max=673988, avg=51743.21, stdev=53960.00 clat percentiles (usec): | 1.00th=[ 1123], 5.00th=[ 1369], 10.00th=[ 2278], 20.00th=[ 5800], | 30.00th=[ 12780], 40.00th=[ 26346], 50.00th=[ 38536], 60.00th=[ 52167], | 70.00th=[ 68682], 80.00th=[ 87557], 90.00th=[117965], 95.00th=[149947], | 99.00th=[214959], 99.50th=[254804], 99.90th=[526386], 99.95th=[675283], | 99.99th=[675283] bw ( KiB/s): min= 5, max= 103, per=25.02%, avg=39.53, stdev=17.98, samples=305 iops : min= 1, max= 25, avg= 9.22, stdev= 4.52, samples=305 lat (usec) : 50=0.55%, 100=4.75%, 250=0.49%, 500=0.10%, 750=0.13% lat (msec) : 2=4.79%, 4=2.90%, 10=6.74%, 20=7.39%, 50=31.48% lat (msec) : 100=28.55%, 250=11.62%, 500=0.46%, 750=0.07% cpu : usr=0.07%, sys=4.42%, ctx=6612, 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=151KiB/s (155kB/s), 37.4KiB/s-39.0KiB/s (38.3kB/s-39.0kB/s), io=23.4MiB (24.6MB), run=154226-158866msec WRITE: bw=158KiB/s (162kB/s), 39.0KiB/s-40.8KiB/s (40.9kB/s-41.8kB/s), io=24.6MiB (25.7MB), run=154226-158866msec fio: pid=144412, err=5/file:backend.c:481, func=full resid, error=Input/output error rand-rw: (groupid=0, jobs=1): err= 0: pid=144410: Mon Aug 24 17:16:06 2026 read: IOPS=4, BW=19.9KiB/s (20.4kB/s)(5992KiB/300385msec) clat (msec): min=5, max=840, avg=40.24, stdev=49.89 lat (msec): min=5, max=840, avg=40.24, stdev=49.88 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 24], 60.00th=[ 30], | 70.00th=[ 38], 80.00th=[ 52], 90.00th=[ 93], 95.00th=[ 125], | 99.00th=[ 224], 99.50th=[ 279], 99.90th=[ 642], 99.95th=[ 844], | 99.99th=[ 844] bw ( KiB/s): min= 7, max= 87, per=31.81%, avg=23.54, stdev=16.20, samples=490 iops : min= 1, max= 21, avg= 5.23, stdev= 4.11, samples=490 write: IOPS=5, BW=20.0KiB/s (21.5kB/s)(6296KiB/300385msec); 0 zone resets clat (msec): min=36, max=764, avg=152.27, stdev=84.23 lat (msec): min=36, max=764, avg=152.28, stdev=84.23 clat percentiles (msec): | 1.00th=[ 54], 5.00th=[ 69], 10.00th=[ 77], 20.00th=[ 89], | 30.00th=[ 101], 40.00th=[ 115], 50.00th=[ 128], 60.00th=[ 144], | 70.00th=[ 165], 80.00th=[ 207], 90.00th=[ 262], 95.00th=[ 326], | 99.00th=[ 447], 99.50th=[ 498], 99.90th=[ 634], 99.95th=[ 768], | 99.99th=[ 768] bw ( KiB/s): min= 7, max= 47, per=26.98%, avg=21.04, stdev=10.47, samples=573 iops : min= 1, max= 11, avg= 4.60, stdev= 2.66, samples=573 lat (msec) : 10=2.51%, 20=16.73%, 50=19.63%, 100=20.93%, 250=34.05% lat (msec) : 500=5.83%, 750=0.26%, 1000=0.07% cpu : usr=0.04%, sys=1.07%, ctx=5179, 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=144411: Mon Aug 24 17:16:06 2026 read: IOPS=4, BW=19.8KiB/s (20.2kB/s)(5940KiB/300538msec) clat (msec): min=5, max=892, avg=41.18, stdev=50.01 lat (msec): min=5, max=892, avg=41.18, stdev=50.01 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 25], 60.00th=[ 31], | 70.00th=[ 40], 80.00th=[ 57], 90.00th=[ 90], 95.00th=[ 128], | 99.00th=[ 228], 99.50th=[ 288], 99.90th=[ 584], 99.95th=[ 894], | 99.99th=[ 894] bw ( KiB/s): min= 7, max= 86, per=31.54%, avg=23.34, stdev=15.89, samples=489 iops : min= 1, max= 21, avg= 5.18, stdev= 4.02, samples=489 write: IOPS=5, BW=21.1KiB/s (21.6kB/s)(6348KiB/300538msec); 0 zone resets clat (msec): min=36, max=576, avg=150.58, stdev=81.25 lat (msec): min=36, max=576, avg=150.58, stdev=81.25 clat percentiles (msec): | 1.00th=[ 53], 5.00th=[ 67], 10.00th=[ 75], 20.00th=[ 89], | 30.00th=[ 102], 40.00th=[ 114], 50.00th=[ 128], 60.00th=[ 144], | 70.00th=[ 167], 80.00th=[ 201], 90.00th=[ 257], 95.00th=[ 326], | 99.00th=[ 443], 99.50th=[ 477], 99.90th=[ 575], 99.95th=[ 575], | 99.99th=[ 575] bw ( KiB/s): min= 7, max= 47, per=27.03%, avg=21.08, stdev=10.43, samples=576 iops : min= 1, max= 11, avg= 4.60, stdev= 2.65, samples=576 lat (msec) : 10=2.77%, 20=15.98%, 50=19.08%, 100=21.71%, 250=34.57% lat (msec) : 500=5.70%, 750=0.16%, 1000=0.03% cpu : usr=0.05%, sys=1.06%, ctx=5104, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 5 (file:backend.c:481, func=full resid, error=Input/output error): pid=144412: Mon Aug 24 17:16:06 2026 read: IOPS=4, BW=18.1KiB/s (18.6kB/s)(4544KiB/250602msec) clat (msec): min=7, max=633, avg=49.90, stdev=51.25 lat (msec): min=7, max=633, avg=49.91, stdev=51.25 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 26], 50.00th=[ 31], 60.00th=[ 40], | 70.00th=[ 54], 80.00th=[ 78], 90.00th=[ 113], 95.00th=[ 142], | 99.00th=[ 247], 99.50th=[ 296], 99.90th=[ 393], 99.95th=[ 634], | 99.99th=[ 634] bw ( KiB/s): min= 7, max= 87, per=27.76%, avg=20.54, stdev=14.40, samples=423 iops : min= 1, max= 21, avg= 4.47, stdev= 3.64, samples=423 write: IOPS=4, BW=19.2KiB/s (19.6kB/s)(4800KiB/250602msec); 0 zone resets clat (msec): min=40, max=978, avg=161.23, stdev=85.08 lat (msec): min=40, max=978, avg=161.23, stdev=85.08 clat percentiles (msec): | 1.00th=[ 58], 5.00th=[ 71], 10.00th=[ 81], 20.00th=[ 95], | 30.00th=[ 109], 40.00th=[ 124], 50.00th=[ 138], 60.00th=[ 157], | 70.00th=[ 180], 80.00th=[ 218], 90.00th=[ 279], 95.00th=[ 326], | 99.00th=[ 435], 99.50th=[ 477], 99.90th=[ 584], 99.95th=[ 978], | 99.99th=[ 978] bw ( KiB/s): min= 7, max= 47, per=24.62%, avg=19.21, stdev= 9.97, samples=477 iops : min= 1, max= 11, avg= 4.13, stdev= 2.55, samples=477 lat (msec) : 10=1.28%, 20=12.45%, 50=19.47%, 100=21.31%, 250=37.91% lat (msec) : 500=7.32%, 750=0.17%, 1000=0.04% cpu : usr=0.05%, sys=1.00%, ctx=3713, 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=1137,1200,0,0 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=144413: Mon Aug 24 17:16:06 2026 read: IOPS=5, BW=20.3KiB/s (20.8kB/s)(6052KiB/297877msec) clat (msec): min=6, max=408, avg=40.22, stdev=42.93 lat (msec): min=6, max=408, avg=40.22, stdev=42.93 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 25], 60.00th=[ 30], | 70.00th=[ 39], 80.00th=[ 57], 90.00th=[ 91], 95.00th=[ 130], | 99.00th=[ 211], 99.50th=[ 268], 99.90th=[ 347], 99.95th=[ 409], | 99.99th=[ 409] bw ( KiB/s): min= 7, max= 87, per=32.35%, avg=23.94, stdev=16.02, samples=487 iops : min= 1, max= 21, avg= 5.33, stdev= 4.05, samples=487 write: IOPS=5, BW=20.9KiB/s (21.4kB/s)(6236KiB/297877msec); 0 zone resets clat (msec): min=36, max=981, avg=151.77, stdev=84.24 lat (msec): min=37, max=981, avg=151.78, stdev=84.23 clat percentiles (msec): | 1.00th=[ 51], 5.00th=[ 66], 10.00th=[ 75], 20.00th=[ 89], | 30.00th=[ 101], 40.00th=[ 113], 50.00th=[ 128], 60.00th=[ 146], | 70.00th=[ 171], 80.00th=[ 203], 90.00th=[ 264], 95.00th=[ 330], | 99.00th=[ 418], 99.50th=[ 464], 99.90th=[ 768], 99.95th=[ 986], | 99.99th=[ 986] bw ( KiB/s): min= 7, max= 47, per=26.77%, avg=20.88, stdev=10.42, samples=572 iops : min= 1, max= 11, avg= 4.56, stdev= 2.66, samples=572 lat (msec) : 10=2.57%, 20=16.34%, 50=19.73%, 100=21.65%, 250=33.53% lat (msec) : 500=6.02%, 750=0.10%, 1000=0.07% cpu : usr=0.05%, sys=1.06%, ctx=5295, 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=74.0KiB/s (76.8kB/s), 18.1KiB/s-20.3KiB/s (18.6kB/s-20.8kB/s), io=22.0MiB (23.1MB), run=250602-300538msec WRITE: bw=78.8KiB/s (80.7kB/s), 19.2KiB/s-21.1KiB/s (19.6kB/s-21.6kB/s), io=23.1MiB (24.2MB), run=250602-300538msec 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=144477: Mon Aug 24 17:16:56 2026 read: IOPS=9, BW=159KiB/s (162kB/s)(5920KiB/37328msec) clat (usec): min=36, max=236095, avg=50030.71, stdev=44316.80 lat (usec): min=36, max=236097, avg=50032.40, stdev=44316.84 clat percentiles (usec): | 1.00th=[ 46], 5.00th=[ 68], 10.00th=[ 75], 20.00th=[ 104], | 30.00th=[ 26346], 40.00th=[ 35914], 50.00th=[ 43779], 60.00th=[ 53216], | 70.00th=[ 63701], 80.00th=[ 82314], 90.00th=[107480], 95.00th=[128451], | 99.00th=[200279], 99.50th=[225444], 99.90th=[235930], 99.95th=[235930], | 99.99th=[235930] bw ( KiB/s): min= 31, max= 382, per=25.03%, avg=160.42, stdev=74.66, samples=72 iops : min= 1, max= 23, avg= 9.24, stdev= 4.75, samples=72 write: IOPS=10, BW=171KiB/s (175kB/s)(6368KiB/37328msec); 0 zone resets clat (usec): min=1508, max=243423, avg=46005.47, stdev=46824.23 lat (usec): min=1512, max=243425, avg=46012.21, stdev=46829.53 clat percentiles (usec): | 1.00th=[ 1631], 5.00th=[ 2024], 10.00th=[ 4293], 20.00th=[ 7767], | 30.00th=[ 11600], 40.00th=[ 17957], 50.00th=[ 28181], 60.00th=[ 42730], | 70.00th=[ 62129], 80.00th=[ 80217], 90.00th=[113771], 95.00th=[143655], | 99.00th=[217056], 99.50th=[223347], 99.90th=[244319], 99.95th=[244319], | 99.99th=[244319] bw ( KiB/s): min= 30, max= 384, per=25.62%, avg=172.65, stdev=71.80, samples=72 iops : min= 1, max= 24, avg=10.01, stdev= 4.60, samples=72 lat (usec) : 50=0.91%, 100=8.20%, 250=1.69%, 500=0.13%, 1000=0.13% lat (msec) : 2=2.60%, 4=2.99%, 10=8.98%, 20=8.85%, 50=26.17% lat (msec) : 100=26.56%, 250=12.76% cpu : usr=0.08%, sys=4.69%, ctx=1530, 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=144479: Mon Aug 24 17:16:56 2026 read: IOPS=9, BW=154KiB/s (157kB/s)(5744KiB/37366msec) clat (usec): min=37, max=389408, avg=51859.50, stdev=44790.72 lat (usec): min=38, max=389411, avg=51862.48, stdev=44791.28 clat percentiles (usec): | 1.00th=[ 43], 5.00th=[ 67], 10.00th=[ 75], 20.00th=[ 104], | 30.00th=[ 27919], 40.00th=[ 38011], 50.00th=[ 48497], 60.00th=[ 57934], | 70.00th=[ 69731], 80.00th=[ 83362], 90.00th=[108528], 95.00th=[123208], | 99.00th=[170918], 99.50th=[183501], 99.90th=[387974], 99.95th=[387974], | 99.99th=[387974] bw ( KiB/s): min= 29, max= 344, per=24.88%, avg=159.46, stdev=70.98, samples=70 iops : min= 1, max= 21, avg= 9.19, stdev= 4.50, samples=70 write: IOPS=10, BW=175KiB/s (179kB/s)(6544KiB/37366msec); 0 zone resets clat (usec): min=1537, max=417326, avg=44654.97, stdev=51998.73 lat (usec): min=1540, max=417339, avg=44672.38, stdev=51992.07 clat percentiles (usec): | 1.00th=[ 1680], 5.00th=[ 1958], 10.00th=[ 3720], 20.00th=[ 7242], | 30.00th=[ 10814], 40.00th=[ 15795], 50.00th=[ 24249], 60.00th=[ 36439], | 70.00th=[ 54789], 80.00th=[ 77071], 90.00th=[111674], 95.00th=[149947], | 99.00th=[214959], 99.50th=[238027], 99.90th=[417334], 99.95th=[417334], | 99.99th=[417334] bw ( KiB/s): min= 31, max= 414, per=26.75%, avg=180.31, stdev=95.31, samples=71 iops : min= 1, max= 25, avg=10.51, stdev= 6.06, samples=71 lat (usec) : 50=1.04%, 100=7.94%, 250=1.17%, 500=0.13% lat (msec) : 2=3.12%, 4=3.26%, 10=9.51%, 20=10.81%, 50=23.31% lat (msec) : 100=27.34%, 250=11.98%, 500=0.39% cpu : usr=0.07%, sys=4.66%, ctx=1444, 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=144480: Mon Aug 24 17:16:56 2026 read: IOPS=10, BW=175KiB/s (179kB/s)(6256KiB/35844msec) clat (usec): min=43, max=199792, avg=49926.55, stdev=42076.76 lat (usec): min=43, max=199794, avg=49928.32, stdev=42076.76 clat percentiles (usec): | 1.00th=[ 45], 5.00th=[ 65], 10.00th=[ 77], 20.00th=[ 122], | 30.00th=[ 27919], 40.00th=[ 35914], 50.00th=[ 45876], 60.00th=[ 56361], | 70.00th=[ 65274], 80.00th=[ 81265], 90.00th=[104334], 95.00th=[139461], | 99.00th=[166724], 99.50th=[181404], 99.90th=[200279], 99.95th=[200279], | 99.99th=[200279] bw ( KiB/s): min= 30, max= 343, per=27.34%, avg=175.26, stdev=69.11, samples=70 iops : min= 1, max= 21, avg=10.17, stdev= 4.38, samples=70 write: IOPS=10, BW=168KiB/s (172kB/s)(6032KiB/35844msec); 0 zone resets clat (usec): min=1520, max=230870, avg=42147.15, stdev=45433.98 lat (usec): min=1523, max=230873, avg=42193.28, stdev=45501.12 clat percentiles (usec): | 1.00th=[ 1663], 5.00th=[ 2540], 10.00th=[ 3556], 20.00th=[ 7046], | 30.00th=[ 10683], 40.00th=[ 16188], 50.00th=[ 25297], 60.00th=[ 35914], | 70.00th=[ 50594], 80.00th=[ 73925], 90.00th=[105382], 95.00th=[145753], | 99.00th=[198181], 99.50th=[223347], 99.90th=[231736], 99.95th=[231736], | 99.99th=[231736] bw ( KiB/s): min= 62, max= 349, per=24.87%, avg=167.63, stdev=73.86, samples=70 iops : min= 3, max= 21, avg= 9.69, stdev= 4.65, samples=70 lat (usec) : 50=1.17%, 100=8.07%, 250=1.95%, 500=0.26%, 750=0.13% lat (msec) : 2=2.60%, 4=3.65%, 10=8.20%, 20=8.59%, 50=27.34% lat (msec) : 100=26.56%, 250=11.46% cpu : usr=0.08%, sys=4.58%, ctx=1460, 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=144482: Mon Aug 24 17:16:56 2026 read: IOPS=10, BW=172KiB/s (176kB/s)(6032KiB/35148msec) clat (usec): min=41, max=206530, avg=48277.34, stdev=40914.56 lat (usec): min=41, max=206532, avg=48279.61, stdev=40914.49 clat percentiles (usec): | 1.00th=[ 44], 5.00th=[ 65], 10.00th=[ 74], 20.00th=[ 111], | 30.00th=[ 26346], 40.00th=[ 33817], 50.00th=[ 42730], 60.00th=[ 53740], | 70.00th=[ 66847], 80.00th=[ 78119], 90.00th=[106431], 95.00th=[127402], | 99.00th=[158335], 99.50th=[189793], 99.90th=[206570], 99.95th=[206570], | 99.99th=[206570] bw ( KiB/s): min= 30, max= 314, per=26.51%, avg=169.96, stdev=70.56, samples=69 iops : min= 1, max= 19, avg= 9.84, stdev= 4.48, samples=69 write: IOPS=11, BW=178KiB/s (182kB/s)(6256KiB/35148msec); 0 zone resets clat (usec): min=1526, max=264167, avg=42732.17, stdev=45093.19 lat (usec): min=1527, max=264173, avg=42743.23, stdev=45101.64 clat percentiles (usec): | 1.00th=[ 1647], 5.00th=[ 2073], 10.00th=[ 3392], 20.00th=[ 7111], | 30.00th=[ 11076], 40.00th=[ 15795], 50.00th=[ 24773], 60.00th=[ 36439], | 70.00th=[ 56361], 80.00th=[ 80217], 90.00th=[106431], 95.00th=[131597], | 99.00th=[185598], 99.50th=[217056], 99.90th=[263193], 99.95th=[263193], | 99.99th=[263193] bw ( KiB/s): min= 61, max= 380, per=26.44%, avg=178.20, stdev=66.48, samples=69 iops : min= 3, max= 23, avg=10.36, stdev= 4.18, samples=69 lat (usec) : 50=0.65%, 100=8.85%, 250=1.30%, 500=0.39%, 750=0.13% lat (msec) : 2=2.86%, 4=3.65%, 10=8.98%, 20=10.29%, 50=24.87% lat (msec) : 100=26.43%, 250=11.46%, 500=0.13% cpu : usr=0.08%, sys=5.21%, ctx=1484, 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=641KiB/s (656kB/s), 154KiB/s-175KiB/s (157kB/s-179kB/s), io=23.4MiB (24.5MB), run=35148-37366msec WRITE: bw=674KiB/s (691kB/s), 168KiB/s-178KiB/s (172kB/s-182kB/s), io=24.6MiB (25.8MB), run=35148-37366msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144476: Mon Aug 24 17:17:53 2026 read: IOPS=3, BW=63.6KiB/s (65.1kB/s)(5920KiB/93048msec) clat (msec): min=9, max=285, avg=49.70, stdev=42.75 lat (msec): min=9, max=285, avg=49.70, stdev=42.75 clat percentiles (msec): | 1.00th=[ 12], 5.00th=[ 15], 10.00th=[ 18], 20.00th=[ 22], | 30.00th=[ 26], 40.00th=[ 31], 50.00th=[ 37], 60.00th=[ 43], | 70.00th=[ 51], 80.00th=[ 65], 90.00th=[ 96], 95.00th=[ 138], | 99.00th=[ 220], 99.50th=[ 257], 99.90th=[ 288], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 30, max= 253, per=30.88%, avg=77.52, stdev=45.02, samples=149 iops : min= 1, max= 15, avg= 3.98, stdev= 2.83, samples=149 write: IOPS=4, BW=68.4KiB/s (70.1kB/s)(6368KiB/93048msec); 0 zone resets clat (msec): min=46, max=652, avg=186.23, stdev=83.41 lat (msec): min=46, max=652, avg=186.23, stdev=83.41 clat percentiles (msec): | 1.00th=[ 63], 5.00th=[ 83], 10.00th=[ 101], 20.00th=[ 123], | 30.00th=[ 138], 40.00th=[ 155], 50.00th=[ 169], 60.00th=[ 190], | 70.00th=[ 213], 80.00th=[ 239], 90.00th=[ 292], 95.00th=[ 342], | 99.00th=[ 493], 99.50th=[ 550], 99.90th=[ 651], 99.95th=[ 651], | 99.99th=[ 651] bw ( KiB/s): min= 30, max= 128, per=26.35%, avg=69.58, stdev=27.50, samples=179 iops : min= 1, max= 8, avg= 3.47, stdev= 1.77, samples=179 lat (msec) : 10=0.26%, 20=7.68%, 50=25.65%, 100=15.23%, 250=41.67% lat (msec) : 500=9.11%, 750=0.39% cpu : usr=0.05%, sys=1.07%, ctx=1309, 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=144478: Mon Aug 24 17:17:53 2026 read: IOPS=3, BW=60.4KiB/s (61.8kB/s)(5744KiB/95162msec) clat (msec): min=7, max=325, avg=50.43, stdev=46.86 lat (msec): min=7, max=325, avg=50.43, stdev=46.86 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 13], 10.00th=[ 17], 20.00th=[ 22], | 30.00th=[ 26], 40.00th=[ 29], 50.00th=[ 34], 60.00th=[ 41], | 70.00th=[ 53], 80.00th=[ 68], 90.00th=[ 107], 95.00th=[ 140], | 99.00th=[ 257], 99.50th=[ 305], 99.90th=[ 326], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 23, max= 191, per=30.67%, avg=76.99, stdev=43.89, samples=145 iops : min= 1, max= 11, avg= 3.95, stdev= 2.76, samples=145 write: IOPS=4, BW=68.8KiB/s (70.4kB/s)(6544KiB/95162msec); 0 zone resets clat (msec): min=35, max=630, avg=188.12, stdev=83.42 lat (msec): min=35, max=630, avg=188.12, stdev=83.42 clat percentiles (msec): | 1.00th=[ 65], 5.00th=[ 82], 10.00th=[ 99], 20.00th=[ 124], | 30.00th=[ 138], 40.00th=[ 155], 50.00th=[ 171], 60.00th=[ 190], | 70.00th=[ 218], 80.00th=[ 253], 90.00th=[ 296], 95.00th=[ 347], | 99.00th=[ 435], 99.50th=[ 464], 99.90th=[ 634], 99.95th=[ 634], | 99.99th=[ 634] bw ( KiB/s): min= 30, max= 191, per=26.26%, avg=69.32, stdev=30.84, samples=184 iops : min= 1, max= 11, avg= 3.46, stdev= 1.97, samples=184 lat (msec) : 10=0.78%, 20=7.55%, 50=23.57%, 100=15.36%, 250=41.41% lat (msec) : 500=11.07%, 750=0.26% cpu : usr=0.03%, sys=0.98%, ctx=1248, 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=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=144481: Mon Aug 24 17:17:53 2026 read: IOPS=4, BW=68.2KiB/s (69.9kB/s)(6256KiB/91676msec) clat (msec): min=6, max=437, avg=51.72, stdev=52.02 lat (msec): min=6, max=437, avg=51.72, stdev=52.02 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 14], 10.00th=[ 18], 20.00th=[ 21], | 30.00th=[ 26], 40.00th=[ 30], 50.00th=[ 34], 60.00th=[ 43], | 70.00th=[ 53], 80.00th=[ 70], 90.00th=[ 102], 95.00th=[ 144], | 99.00th=[ 309], 99.50th=[ 368], 99.90th=[ 439], 99.95th=[ 439], | 99.99th=[ 439] bw ( KiB/s): min= 30, max= 281, per=32.47%, avg=81.50, stdev=52.85, samples=151 iops : min= 1, max= 17, avg= 4.23, stdev= 3.36, samples=151 write: IOPS=4, BW=65.8KiB/s (67.4kB/s)(6032KiB/91676msec); 0 zone resets clat (msec): min=55, max=542, avg=188.50, stdev=82.49 lat (msec): min=55, max=542, avg=188.50, stdev=82.49 clat percentiles (msec): | 1.00th=[ 62], 5.00th=[ 87], 10.00th=[ 95], 20.00th=[ 121], | 30.00th=[ 136], 40.00th=[ 157], 50.00th=[ 178], 60.00th=[ 192], | 70.00th=[ 215], 80.00th=[ 251], 90.00th=[ 305], 95.00th=[ 355], | 99.00th=[ 430], 99.50th=[ 447], 99.90th=[ 542], 99.95th=[ 542], | 99.99th=[ 542] bw ( KiB/s): min= 23, max= 159, per=25.72%, avg=67.90, stdev=29.76, samples=173 iops : min= 1, max= 9, avg= 3.38, stdev= 1.87, samples=173 lat (msec) : 10=0.78%, 20=8.85%, 50=24.74%, 100=17.19%, 250=37.63% lat (msec) : 500=10.68%, 750=0.13% cpu : usr=0.05%, sys=1.11%, ctx=1349, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144483: Mon Aug 24 17:17:53 2026 read: IOPS=4, BW=64.5KiB/s (66.1kB/s)(6032KiB/93493msec) clat (msec): min=8, max=443, avg=53.05, stdev=51.23 lat (msec): min=8, max=443, avg=53.05, stdev=51.23 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 14], 10.00th=[ 17], 20.00th=[ 23], | 30.00th=[ 27], 40.00th=[ 32], 50.00th=[ 36], 60.00th=[ 45], | 70.00th=[ 53], 80.00th=[ 73], 90.00th=[ 108], 95.00th=[ 153], | 99.00th=[ 309], 99.50th=[ 351], 99.90th=[ 443], 99.95th=[ 443], | 99.99th=[ 443] bw ( KiB/s): min= 30, max= 285, per=31.61%, avg=79.33, stdev=52.27, samples=148 iops : min= 1, max= 17, avg= 4.09, stdev= 3.34, samples=148 write: IOPS=4, BW=66.9KiB/s (68.5kB/s)(6256KiB/93493msec); 0 zone resets clat (msec): min=49, max=559, avg=186.74, stdev=77.76 lat (msec): min=49, max=559, avg=186.75, stdev=77.76 clat percentiles (msec): | 1.00th=[ 61], 5.00th=[ 93], 10.00th=[ 104], 20.00th=[ 125], | 30.00th=[ 140], 40.00th=[ 155], 50.00th=[ 169], 60.00th=[ 190], | 70.00th=[ 213], 80.00th=[ 247], 90.00th=[ 296], 95.00th=[ 326], | 99.00th=[ 443], 99.50th=[ 518], 99.90th=[ 558], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 30, max= 128, per=26.34%, avg=69.55, stdev=27.40, samples=176 iops : min= 1, max= 8, avg= 3.47, stdev= 1.74, samples=176 lat (msec) : 10=0.39%, 20=7.16%, 50=25.52%, 100=14.97%, 250=41.67% lat (msec) : 500=10.03%, 750=0.26% cpu : usr=0.03%, sys=0.97%, ctx=1227, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=252KiB/s (258kB/s), 60.4KiB/s-68.2KiB/s (61.8kB/s-69.9kB/s), io=23.4MiB (24.5MB), run=91676-95162msec WRITE: bw=265KiB/s (271kB/s), 65.8KiB/s-68.8KiB/s (67.4kB/s-70.4kB/s), io=24.6MiB (25.8MB), run=91676-95162msec 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=144506: Mon Aug 24 17:18:11 2026 read: IOPS=1, BW=1652KiB/s (1691kB/s)(7168KiB/4340msec) clat (msec): min=143, max=382, avg=305.27, stdev=93.31 lat (msec): min=143, max=382, avg=305.27, stdev=93.31 clat percentiles (msec): | 1.00th=[ 144], 5.00th=[ 144], 10.00th=[ 144], 20.00th=[ 207], | 30.00th=[ 321], 40.00th=[ 321], 50.00th=[ 342], 60.00th=[ 363], | 70.00th=[ 363], 80.00th=[ 380], 90.00th=[ 384], 95.00th=[ 384], | 99.00th=[ 384], 99.50th=[ 384], 99.90th=[ 384], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 1896, max= 3084, per=60.38%, avg=2187.40, stdev=505.29, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 write: IOPS=1, BW=1180KiB/s (1208kB/s)(5120KiB/4340msec); 0 zone resets clat (msec): min=349, max=497, avg=407.72, stdev=62.27 lat (msec): min=349, max=498, avg=407.84, stdev=62.26 clat percentiles (msec): | 1.00th=[ 351], 5.00th=[ 351], 10.00th=[ 351], 20.00th=[ 351], | 30.00th=[ 372], 40.00th=[ 372], 50.00th=[ 376], 60.00th=[ 376], | 70.00th=[ 447], 80.00th=[ 447], 90.00th=[ 498], 95.00th=[ 498], | 99.00th=[ 498], 99.50th=[ 498], 99.90th=[ 498], 99.95th=[ 498], | 99.99th=[ 498] bw ( KiB/s): min= 1903, max= 4096, per=49.49%, avg=2510.25, stdev=1058.73, samples=4 iops : min= 1, max= 4, avg= 1.75, stdev= 1.50, samples=4 lat (msec) : 250=16.67%, 500=83.33% cpu : usr=0.00%, sys=3.36%, ctx=73, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144507: Mon Aug 24 17:18:11 2026 read: IOPS=0, BW=372KiB/s (381kB/s)(2048KiB/5511msec) clat (msec): min=185, max=734, avg=459.89, stdev=388.07 lat (msec): min=185, max=734, avg=459.89, stdev=388.07 clat percentiles (msec): | 1.00th=[ 186], 5.00th=[ 186], 10.00th=[ 186], 20.00th=[ 186], | 30.00th=[ 186], 40.00th=[ 186], 50.00th=[ 186], 60.00th=[ 735], | 70.00th=[ 735], 80.00th=[ 735], 90.00th=[ 735], 95.00th=[ 735], | 99.00th=[ 735], 99.50th=[ 735], 99.90th=[ 735], 99.95th=[ 735], | 99.99th=[ 735] bw ( KiB/s): min= 1570, max= 2003, per=49.31%, avg=1786.50, stdev=306.18, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1858KiB/s (1903kB/s)(10.0MiB/5511msec); 0 zone resets clat (msec): min=178, max=1302, avg=453.22, stdev=317.70 lat (msec): min=178, max=1302, avg=453.37, stdev=317.79 clat percentiles (msec): | 1.00th=[ 180], 5.00th=[ 180], 10.00th=[ 180], 20.00th=[ 284], | 30.00th=[ 288], 40.00th=[ 305], 50.00th=[ 305], 60.00th=[ 401], | 70.00th=[ 443], 80.00th=[ 498], 90.00th=[ 531], 95.00th=[ 1301], | 99.00th=[ 1301], 99.50th=[ 1301], 99.90th=[ 1301], 99.95th=[ 1301], | 99.99th=[ 1301] bw ( KiB/s): min= 1896, max= 4096, per=59.08%, avg=2996.67, stdev=1110.77, samples=6 iops : min= 1, max= 4, avg= 2.17, stdev= 1.33, samples=6 lat (msec) : 250=16.67%, 500=58.33%, 750=16.67%, 2000=8.33% cpu : usr=0.00%, sys=3.54%, ctx=92, 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=144508: Mon Aug 24 17:18:11 2026 read: IOPS=1, BW=1087KiB/s (1113kB/s)(6144KiB/5652msec) clat (msec): min=126, max=941, avg=356.44, stdev=302.08 lat (msec): min=126, max=941, avg=356.44, stdev=302.08 rand-rw: (groupid=0, jobs=1): err= 0: pid=144512: Mon Aug 24 17:18:11 2026 read: IOPS=1, BW=1921KiB/s (1967kB/s)(7168KiB/3732msec) clat (usec): min=544, max=440740, avg=228263.52, stdev=135719.13 lat (usec): min=545, max=440742, avg=228265.08, stdev=135719.26 clat percentiles (usec): | 1.00th=[ 545], 5.00th=[ 545], 10.00th=[ 545], 20.00th=[187696], | 30.00th=[208667], 40.00th=[208667], 50.00th=[208667], 60.00th=[221250], | 70.00th=[221250], 80.00th=[333448], 90.00th=[442500], 95.00th=[442500], | 99.00th=[442500], 99.50th=[442500], 99.90th=[442500], 99.95th=[442500], | 99.99th=[442500] bw ( KiB/s): min= 1969, max= 3828, per=70.98%, avg=2965.00, stdev=936.61, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=1, BW=1372KiB/s (1405kB/s)(5120KiB/3732msec); 0 zone resets clat (msec): min=158, max=649, avg=426.00, stdev=197.73 lat (msec): min=158, max=649, avg=426.12, stdev=197.74 clat percentiles (msec): | 1.00th=[ 159], 5.00th=[ 159], 10.00th=[ 159], 20.00th=[ 159], | 30.00th=[ 309], 40.00th=[ 309], 50.00th=[ 447], 60.00th=[ 447], | 70.00th=[ 567], 80.00th=[ 567], 90.00th=[ 651], 95.00th=[ 651], | 99.00th=[ 651], 99.50th=[ 651], 99.90th=[ 651], 99.95th=[ 651], | 99.99th=[ 651] bw ( KiB/s): min= 1969, max= 2031, per=34.13%, avg=1996.00, stdev=25.73, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 lat (usec) : 750=8.33% lat (msec) : 250=41.67%, 500=33.33%, 750=16.67% cpu : usr=0.00%, sys=12.84%, ctx=159, 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=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=144513: Mon Aug 24 17:18:11 2026 read: IOPS=0, BW=418KiB/s (428kB/s)(2048KiB/4902msec) clat (msec): min=216, max=583, avg=399.93, stdev=259.86 lat (msec): min=216, max=583, avg=399.93, stdev=259.86 clat percentiles (msec): | 1.00th=[ 218], 5.00th=[ 218], 10.00th=[ 218], 20.00th=[ 218], | 30.00th=[ 218], 40.00th=[ 218], 50.00th=[ 218], 60.00th=[ 584], | 70.00th=[ 584], 80.00th=[ 584], 90.00th=[ 584], 95.00th=[ 584], | 99.00th=[ 584], 99.50th=[ 584], 99.90th=[ 584], 99.95th=[ 584], | 99.99th=[ 584] bw ( KiB/s): min= 1410, max= 1965, per=40.40%, avg=1687.50, stdev=392.44, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2089KiB/s (2139kB/s)(10.0MiB/4902msec); 0 zone resets clat (msec): min=199, max=792, avg=409.41, stdev=200.75 lat (msec): min=199, max=792, avg=410.06, stdev=201.06 clat percentiles (msec): | 1.00th=[ 199], 5.00th=[ 199], 10.00th=[ 199], 20.00th=[ 218], | 30.00th=[ 228], 40.00th=[ 284], 50.00th=[ 296], 60.00th=[ 426], | 70.00th=[ 502], 80.00th=[ 514], 90.00th=[ 642], 95.00th=[ 793], | 99.00th=[ 793], 99.50th=[ 793], 99.90th=[ 793], 99.95th=[ 793], | 99.99th=[ 793] bw ( KiB/s): min= 1914, max= 4096, per=44.16%, avg=2583.00, stdev=1031.10, samples=7 iops : min= 1, max= 4, avg= 1.71, stdev= 1.25, samples=7 lat (msec) : 250=33.33%, 500=25.00%, 750=33.33%, 1000=8.33% cpu : usr=0.02%, sys=10.79%, ctx=182, 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=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=144514: Mon Aug 24 17:18:11 2026 read: IOPS=1, BW=1568KiB/s (160 clat percentiles (msec): 6kB/s)(6144KiB/3918msec) clat (usec): min=1652, max=414131, avg=194761.13, stdev=143098.92 lat (usec): min=1653, max=414132, avg=194763.00, stdev=143098.81 clat percentiles (usec): | 1.00th=[ 1647], 5.00th=[ 1647], 10.00th=[ 1647], 20.00th=[114820], | 30.00th=[114820], 40.00th=[135267], 50.00th=[135267], 60.00th=[233833], | 70.00th=[270533], 80.00th=[270533], 90.00th=[413139], 95.00th=[413139], | 99.00th=[413139], 99.50th=[413139], 99.90th=[413139], 99.95th=[413139], | 99.99th=[413139] bw ( KiB/s): min= 1965, max= 4063, per=59.92%, avg=2503.00, stdev=1040.08, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1568KiB/s (1606kB/s)(6144KiB/3918msec); 0 zone resets clat (msec): min=215, max=811, avg=457.72, stdev=228.93 lat (msec): min=215, max=811, avg=457.83, stdev=228.96 clat percentiles (msec): | 1.00th=[ 215], 5.00th=[ 215], 10.00th=[ 215], 20.00th=[ 268], | 30.00th=[ 268], 40.00th=[ 338], 50.00th=[ 338], 60.00th=[ 498], | 70.00th=[ 617], 80.00th=[ 617], 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= 1530, max= 2031, per=32.71%, avg=1913.17, stdev=189.17, samples=6 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=6 lat (msec) : 2=8.33%, 250=33.33%, 500=41.67%, 750=8.33%, 1000=8.33% cpu : usr=0.00%, sys=11.03%, ctx=139, 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=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=144515: Mon Aug 24 17:18:11 2026 read: IOPS=1, BW=1242KiB/s (1271kB/s)(5120KiB/4124msec) clat (usec): min=484, max=412079, avg=139763.21, stdev=195836.36 lat (usec): min=484, max=412081, avg=139764.50, stdev=195836.87 clat percentiles (usec): | 1.00th=[ 486], 5.00th=[ 486], 10.00th=[ 486], 20.00th=[ 486], | 30.00th=[ 529], 40.00th=[ 529], 50.00th=[ 660], 60.00th=[ 660], | 70.00th=[283116], 80.00th=[283116], 90.00th=[413139], 95.00th=[413139], | 99.00th=[413139], 99.50th=[413139], 99.90th=[413139], 99.95th=[413139], | 99.99th=[413139] bw ( KiB/s): min= 1992, max= 5976, per=95.38%, avg=3984.00, stdev=2817.11, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=1, BW=1738KiB/s (1780kB/s)(7168KiB/4124msec); 0 zone resets clat (msec): min=160, max=886, avg=488.17, stdev=271.34 lat (msec): min=160, max=886, avg=489.03, stdev=271.23 clat percentiles (msec): | 1.00th=[ 161], 5.00th=[ 161], 10.00th=[ 161], 20.00th=[ 245], | 30.00th=[ 330], 40.00th=[ 330], 50.00th=[ 409], 60.00th=[ 684], | 70.00th=[ 684], 80.00th=[ 701], 90.00th=[ 885], 95.00th=[ 885], | 99.00th=[ 885], 99.50th=[ 885], 99.90th=[ 885], 99.95th=[ 885], | 99.99th=[ 885] bw ( KiB/s): min= 1914, max= 4063, per=50.76%, avg=2969.00, stdev=1187.91, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 lat (usec) : 500=8.33%, 750=16.67% lat (msec) : 250=16.67%, 500=33.33%, 750=16.67%, 1000=8.33% cpu : usr=0.00%, sys=10.74%, ctx=110, 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=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=4178KiB/s (4278kB/s), 418KiB/s-1921KiB/s (428kB/s-1967kB/s), io=20.0MiB (20.0MB), run=3732-4902msec WRITE: bw=5849KiB/s (5989kB/s), 1372KiB/s-2089KiB/s (1405kB/s-2139kB/s), io=28.0MiB (29.4MB), run=3732-4902msec | 1.00th=[ 127], 5.00th=[ 127], 10.00th=[ 127], 20.00th=[ 178], | 30.00th=[ 178], 40.00th=[ 194], 50.00th=[ 194], 60.00th=[ 321], | 70.00th=[ 380], 80.00th=[ 380], 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= 1973, max= 4079, per=92.55%, avg=3353.00, stdev=1195.66, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=1, BW=1087KiB/s (1113kB/s)(6144KiB/5652msec); 0 zone resets clat (msec): min=285, max=849, avg=548.22, stdev=222.07 lat (msec): min=285, max=849, avg=548.33, stdev=222.07 clat percentiles (msec): | 1.00th=[ 288], 5.00th=[ 288], 10.00th=[ 288], 20.00th=[ 405], | 30.00th=[ 405], 40.00th=[ 409], 50.00th=[ 409], 60.00th=[ 575], | 70.00th=[ 768], 80.00th=[ 768], 90.00th=[ 852], 95.00th=[ 852], | 99.00th=[ 852], 99.50th=[ 852], 99.90th=[ 852], 99.95th=[ 852], | 99.99th=[ 852] bw ( KiB/s): min= 1896, max= 2048, per=38.80%, avg=1967.80, stdev=67.89, samples=5 iops : min= 1, max= 2, avg= 1.20, stdev= 0.45, samples=5 lat (msec) : 250=25.00%, 500=41.67%, 750=8.33%, 1000=25.00% cpu : usr=0.00%, sys=2.92%, ctx=65, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144509: Mon Aug 24 17:18:11 2026 read: IOPS=1, BW=1225KiB/s (1254kB/s)(5120KiB/4181msec) clat (msec): min=115, max=370, avg=177.56, stdev=108.32 lat (msec): min=115, max=370, avg=177.57, stdev=108.32 clat percentiles (msec): | 1.00th=[ 115], 5.00th=[ 115], 10.00th=[ 115], 20.00th=[ 115], | 30.00th=[ 123], 40.00th=[ 123], 50.00th=[ 138], 60.00th=[ 138], | 70.00th=[ 144], 80.00th=[ 144], 90.00th=[ 372], 95.00th=[ 372], | 99.00th=[ 372], 99.50th=[ 372], 99.90th=[ 372], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 3792, max= 4079, per=100.00%, avg=3935.50, stdev=202.94, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1714KiB/s (1756kB/s)(7168KiB/4181msec); 0 zone resets clat (msec): min=315, max=541, avg=438.86, stdev=73.08 lat (msec): min=316, max=541, avg=439.28, stdev=72.77 clat percentiles (msec): | 1.00th=[ 317], 5.00th=[ 317], 10.00th=[ 317], 20.00th=[ 401], | 30.00th=[ 418], 40.00th=[ 418], 50.00th=[ 430], 60.00th=[ 481], | 70.00th=[ 481], 80.00th=[ 489], 90.00th=[ 542], 95.00th=[ 542], | 99.00th=[ 542], 99.50th=[ 542], 99.90th=[ 542], 99.95th=[ 542], | 99.99th=[ 542] bw ( KiB/s): min= 1896, max= 4039, per=47.01%, avg=2384.20, stdev=927.80, samples=5 iops : min= 1, max= 3, avg= 1.60, stdev= 0.89, samples=5 lat (msec) : 250=33.33%, 500=58.33%, 750=8.33% cpu : usr=0.00%, sys=3.09%, ctx=57, 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=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=3623KiB/s (3710kB/s), 372KiB/s-1652KiB/s (381kB/s-1691kB/s), io=20.0MiB (20.0MB), run=4181-5652msec WRITE: bw=5073KiB/s (5195kB/s), 1087KiB/s-1858KiB/s (1113kB/s-1903kB/s), io=28.0MiB (29.4MB), run=4181-5652msec 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=144521: Mon Aug 24 17:18:28 2026 read: IOPS=1, BW=5543KiB/s (5676kB/s)(12.0MiB/2217msec) clat (msec): min=547, max=1071, avg=726.45, stdev=299.04 lat (msec): min=547, max=1071, avg=726.45, stdev=299.04 clat percentiles (msec): | 1.00th=[ 550], 5.00th=[ 550], 10.00th=[ 550], 20.00th=[ 550], | 30.00th=[ 550], 40.00th=[ 558], 50.00th=[ 558], 60.00th=[ 558], | 70.00th=[ 1070], 80.00th=[ 1070], 90.00th=[ 1070], 95.00th=[ 1070], | 99.00th=[ 1070], 99.50th=[ 1070], 99.90th=[ 1070], 99.95th=[ 1070], | 99.99th=[ 1070] bw ( KiB/s): min= 5680, max= 8175, per=93.74%, avg=6927.50, stdev=1764.23, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=66.67%, 2000=33.33% cpu : usr=0.00%, sys=4.29%, ctx=56, 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=144522: Mon Aug 24 17:18:28 2026 read: IOPS=0, BW=1914KiB/s (1960kB/s)(4096KiB/2140msec) clat (nsec): min=326205k, max=326205k, avg=326205489.00, stdev= 0.00 lat (nsec): min=326208k, max=326208k, avg=326208156.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 326], 5.00th=[ 326], 10.00th=[ 326], 20.00th=[ 326], | 30.00th=[ 326], 40.00th=[ 326], 50.00th=[ 326], 60.00th=[ 326], | 70.00th=[ 326], 80.00th=[ 326], 90.00th=[ 326], 95.00th=[ 326], | 99.00th=[ 326], 99.50th=[ 326], 99.90th=[ 326], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 7937, max= 7937, per=100.00%, avg=7937.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3828KiB/s (3920kB/s)(8192KiB/2140msec); 0 zone resets clat (msec): min=803, max=920, avg=862.47, stdev=82.76 lat (msec): min=807, max=923, avg=865.68, stdev=82.04 clat percentiles (msec): | 1.00th=[ 802], 5.00th=[ 802], 10.00th=[ 802], 20.00th=[ 802], | 30.00th=[ 802], 40.00th=[ 802], 50.00th=[ 802], 60.00th=[ 919], | 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= 7953, max= 7953, per=100.00%, avg=7953.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 1000=66.67% cpu : usr=0.00%, sys=4.35%, 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=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=144523: Mon Aug 24 17:18:28 2026 write: IOPS=0, BW=2763KiB/s (2829kB/s)(12.0MiB/4448msec); 0 zone resets clat (msec): min=1015, max=2189, avg=1460.14, stdev=636.97 lat (msec): min=1016, max=2193, avg=1461.69, stdev=638.80 clat percentiles (msec): | 1.00th=[ 1020], 5.00th=[ 1020], 10.00th=[ 1020], 20.00th=[ 1020], | 30.00th=[ 1020], 40.00th=[ 1183], 50.00th=[ 1183], 60.00th=[ 1183], | 70.00th=[ 2198], 80.00th=[ 2198], 90.00th=[ 2198], 95.00th=[ 2198], | 99.00th=[ 2198], 99.50th=[ 2198], 99.90th=[ 2198], 99.95th=[ 2198], | 99.99th=[ 2198] bw ( KiB/s): min= 7892, max= 8192, per=100.00%, avg=8042.00, stdev=212.13, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 2000=66.67%, >=2000=33.33% cpu : usr=0.00%, sys=4.23%, ctx=58, 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=144524: Mon Aug 24 17:18:28 2026 write: IOPS=0, BW=3463KiB/s (3546kB/s)(12.0MiB/3548msec); 0 zone resets clat (msec): min=403, max=2360, avg=1105.79, stdev=1089.46 lat (msec): min=404, max=2362, avg=1106.87, stdev=1089.88 clat percentiles (msec): | 1.00th=[ 405], 5.00th=[ 405], 10.00th=[ 405], 20.00th=[ 405], | 30.00th=[ 405], 40.00th=[ 550], 50.00th=[ 550], 60.00th=[ 550], | 70.00th=[ 2366], 80.00th=[ 2366], 90.00th=[ 2366], 95.00th=[ 2366], | 99.00th=[ 2366], 99.50th=[ 2366], 99.90th=[ 2366], 99.95th=[ 2366], | 99.99th=[ 2366] bw ( KiB/s): min= 6206, max= 7953, per=96.11%, avg=7079.50, stdev=1235.32, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 750=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=5.19%, ctx=73, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=7390KiB/s (7568kB/s), 1914KiB/s-5543KiB/s (1960kB/s-5676kB/s), io=16.0MiB (16.8MB), run=2140-2217msec WRITE: bw=7367KiB/s (7544kB/s), 2763KiB/s-3828KiB/s (2829kB/s-3920kB/s), io=32.0MiB (33.6MB), run=2140-4448msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144526: Mon Aug 24 17:18:29 2026 read: IOPS=1, BW=4384KiB/s (4489kB/s)(12.0MiB/2803msec) clat (msec): min=864, max=1043, avg=933.47, stdev=96.62 lat (msec): min=864, max=1043, avg=933.47, stdev=96.62 clat percentiles (msec): | 1.00th=[ 869], 5.00th=[ 869], 10.00th=[ 869], 20.00th=[ 869], | 30.00th=[ 869], 40.00th=[ 894], 50.00th=[ 894], 60.00th=[ 894], | 70.00th=[ 1045], 80.00th=[ 1045], 90.00th=[ 1045], 95.00th=[ 1045], | 99.00th=[ 1045], 99.50th=[ 1045], 99.90th=[ 1045], 99.95th=[ 1045], | 99.99th=[ 1045] bw ( KiB/s): min= 8094, max= 8159, per=100.00%, avg=8126.50, stdev=45.96, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=66.67%, 2000=33.33% cpu : usr=0.00%, sys=13.20%, ctx=239, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144527: Mon Aug 24 17:18:29 2026 read: IOPS=0, BW=1102KiB/s (1128kB/s)(4096KiB/3718msec) clat (nsec): min=925734k, max=925734k, avg=925733596.00, stdev= 0.00 lat (nsec): min=925736k, max=925736k, avg=925736048.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 927], 5.00th=[ 927], 10.00th=[ 927], 20.00th=[ 927], | 30.00th=[ 927], 40.00th=[ 927], 50.00th=[ 927], 60.00th=[ 927], | 70.00th=[ 927], 80.00th=[ 927], 90.00th=[ 927], 95.00th=[ 927], | 99.00th=[ 927], 99.50th=[ 927], 99.90th=[ 927], 99.95th=[ 927], | 99.99th=[ 927] bw ( KiB/s): min= 8094, max= 8094, per=100.00%, avg=8094.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2203KiB/s (2256kB/s)(8192KiB/3718msec); 0 zone resets clat (msec): min=652, max=2137, avg=1394.76, stdev=1049.71 lat (msec): min=652, max=2137, avg=1395.19, stdev=1049.71 clat percentiles (msec): | 1.00th=[ 651], 5.00th=[ 651], 10.00th=[ 651], 20.00th=[ 651], | 30.00th=[ 651], 40.00th=[ 651], 50.00th=[ 651], 60.00th=[ 2140], | 70.00th=[ 2140], 80.00th=[ 2140], 90.00th=[ 2140], 95.00th=[ 2140], | 99.00th=[ 2140], 99.50th=[ 2140], 99.90th=[ 2140], 99.95th=[ 2140], | 99.99th=[ 2140] bw ( KiB/s): min= 8159, max= 8159, per=92.58%, 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=2.80%, ctx=119, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=144528: Mon Aug 24 17:18:29 2026 write: IOPS=0, BW=3332KiB/s (3412kB/s)(12.0MiB/3688msec); 0 zone resets clat (msec): min=511, max=1981, avg=1228.52, stdev=736.03 lat (msec): min=511, max=1982, avg=1228.96, stdev=736.01 clat percentiles (msec): | 1.00th=[ 510], 5.00th=[ 510], 10.00th=[ 510], 20.00th=[ 510], | 30.00th=[ 510], 40.00th=[ 1200], 50.00th=[ 1200], 60.00th=[ 1200], | 70.00th=[ 1989], 80.00th=[ 1989], 90.00th=[ 1989], 95.00th=[ 1989], | 99.00th=[ 1989], 99.50th=[ 1989], 99.90th=[ 1989], 99.95th=[ 1989], | 99.99th=[ 1989] bw ( KiB/s): min= 8126, max= 8192, per=92.58%, avg=8159.00, stdev=46.67, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 750=33.33%, 2000=66.67% cpu : usr=0.05%, sys=3.85%, ctx=44, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144529: Mon Aug 24 17:18:29 2026 write: IOPS=0, BW=3954KiB/s (4049kB/s)(12.0MiB/3108msec); 0 zone resets clat (msec): min=440, max=1938, avg=1034.55, stdev=795.69 lat (msec): min=441, max=1938, avg=1035.46, stdev=795.04 clat percentiles (msec): | 1.00th=[ 439], 5.00th=[ 439], 10.00th=[ 439], 20.00th=[ 439], | 30.00th=[ 439], 40.00th=[ 726], 50.00th=[ 726], 60.00th=[ 726], | 70.00th=[ 1938], 80.00th=[ 1938], 90.00th=[ 1938], 95.00th=[ 1938], | 99.00th=[ 1938], 99.50th=[ 1938], 99.90th=[ 1938], 99.95th=[ 1938], | 99.99th=[ 1938] bw ( KiB/s): min= 8047, max= 8192, per=92.13%, avg=8119.50, stdev=102.53, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 500=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.00%, sys=3.99%, 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 Run status group 0 (all jobs): READ: bw=4407KiB/s (4512kB/s), 1102KiB/s-4384KiB/s (1128kB/s-4489kB/s), io=16.0MiB (16.8MB), run=2803-3718msec WRITE: bw=8813KiB/s (9025kB/s), 2203KiB/s-3954KiB/s (2256kB/s-4049kB/s), io=32.0MiB (33.6MB), run=3108-3718msec