== sanity test 398b: DIO and buffer IO race ============== 10:31:07 (1787754667) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 7.29478 s, 6.9 MB/s mix direct rw 4096 by fio with 4 jobs... mix buffer rw 4096 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=178771: Wed Aug 26 10:34:01 2026 read: IOPS=9, BW=39.2KiB/s (40.1kB/s)(5992KiB/152845msec) clat (usec): min=28, max=1034.8k, avg=56745.22, stdev=44787.34 lat (usec): min=28, max=1034.8k, avg=56746.54, stdev=44787.43 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 13173], 10.00th=[ 20055], | 20.00th=[ 28443], 30.00th=[ 34341], 40.00th=[ 41681], | 50.00th=[ 49021], 60.00th=[ 57934], 70.00th=[ 66847], | 80.00th=[ 81265], 90.00th=[ 100140], 95.00th=[ 122160], | 99.00th=[ 181404], 99.50th=[ 223347], 99.90th=[ 425722], | 99.95th=[1035994], 99.99th=[1035994] bw ( KiB/s): min= 5, max= 95, per=24.84%, avg=38.99, stdev=16.19, samples=299 iops : min= 1, max= 23, avg= 9.09, stdev= 4.08, samples=299 write: IOPS=10, BW=41.2KiB/s (42.2kB/s)(6296KiB/152845msec); 0 zone resets clat (usec): min=1023, max=268929, avg=42747.95, stdev=45626.04 lat (usec): min=1025, max=268930, avg=42754.19, stdev=45623.75 clat percentiles (usec): | 1.00th=[ 1123], 5.00th=[ 1237], 10.00th=[ 1500], 20.00th=[ 3654], | 30.00th=[ 7963], 40.00th=[ 17171], 50.00th=[ 29754], 60.00th=[ 41157], | 70.00th=[ 56361], 80.00th=[ 74974], 90.00th=[106431], 95.00th=[135267], | 99.00th=[191890], 99.50th=[233833], 99.90th=[265290], 99.95th=[270533], | 99.99th=[270533] bw ( KiB/s): min= 7, max= 96, per=24.97%, avg=40.95, stdev=17.65, samples=299 iops : min= 1, max= 24, avg= 9.58, stdev= 4.43, samples=299 lat (usec) : 50=0.26%, 100=1.63%, 250=0.10%, 500=0.03%, 1000=0.13% lat (msec) : 2=6.71%, 4=3.84%, 10=6.71%, 20=7.06%, 50=32.52% lat (msec) : 100=30.21%, 250=10.42%, 500=0.36%, 2000=0.03% cpu : usr=0.07%, sys=3.99%, ctx=6223, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178772: Wed Aug 26 10:34:01 2026 read: IOPS=10, BW=40.3KiB/s (41.2kB/s)(5940KiB/147543msec) clat (usec): min=42, max=480109, avg=54939.71, stdev=37272.08 lat (usec): min=43, max=480109, avg=54956.92, stdev=37298.11 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 11207], 10.00th=[ 20055], 20.00th=[ 27919], | 30.00th=[ 33424], 40.00th=[ 40109], 50.00th=[ 47973], 60.00th=[ 55837], | 70.00th=[ 64226], 80.00th=[ 78119], 90.00th=[ 99091], 95.00th=[117965], | 99.00th=[185598], 99.50th=[208667], 99.90th=[312476], 99.95th=[480248], | 99.99th=[480248] bw ( KiB/s): min= 5, max= 103, per=25.45%, avg=39.96, stdev=15.95, samples=288 iops : min= 1, max= 25, avg= 9.33, stdev= 4.01, samples=288 write: IOPS=10, BW=43.0KiB/s (44.1kB/s)(6348KiB/147543msec); 0 zone resets clat (usec): min=942, max=1015.0k, avg=41198.95, stdev=49937.36 lat (usec): min=949, max=1015.0k, avg=41209.18, stdev=49931.61 clat percentiles (usec): | 1.00th=[ 1123], 5.00th=[ 1237], 10.00th=[ 1401], | 20.00th=[ 3523], 30.00th=[ 7570], 40.00th=[ 16712], | 50.00th=[ 29230], 60.00th=[ 40109], 70.00th=[ 52167], | 80.00th=[ 71828], 90.00th=[ 99091], 95.00th=[ 122160], | 99.00th=[ 187696], 99.50th=[ 206570], 99.90th=[ 421528], | 99.95th=[1019216], 99.99th=[1019216] bw ( KiB/s): min= 7, max= 93, per=26.01%, avg=42.66, stdev=17.64, samples=288 iops : min= 1, max= 23, avg=10.02, stdev= 4.45, samples=288 lat (usec) : 50=0.29%, 100=1.89%, 250=0.10%, 1000=0.13% lat (msec) : 2=7.06%, 4=3.87%, 10=6.80%, 20=6.58%, 50=34.11% lat (msec) : 100=29.49%, 250=9.41%, 500=0.23%, 2000=0.03% cpu : usr=0.07%, sys=4.36%, ctx=6208, 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=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=178773: Wed Aug 26 10:34:01 2026 read: IOPS=10, BW=40.0KiB/s (40.0kB/s)(6028KiB/150686msec) clat (usec): min=37, max=295345, avg=54307.20, stdev=36077.22 lat (usec): min=38, max=295346, avg=54309.98, stdev=36079.25 clat percentiles (usec): | 1.00th=[ 51], 5.00th=[ 314], 10.00th=[ 19530], 20.00th=[ 27395], | 30.00th=[ 33162], 40.00th=[ 40109], 50.00th=[ 46924], 60.00th=[ 54789], | 70.00th=[ 64750], 80.00th=[ 78119], 90.00th=[100140], 95.00th=[119014], | 99.00th=[173016], 99.50th=[196084], 99.90th=[287310], 99.95th=[295699], | 99.99th=[295699] bw ( KiB/s): min= 7, max= 87, per=25.41%, avg=39.89, stdev=15.86, samples=294 iops : min= 1, max= 21, avg= 9.31, stdev= 3.98, samples=294 write: IOPS=10, BW=41.5KiB/s (42.5kB/s)(6260KiB/150686msec); 0 zone resets clat (usec): min=875, max=1086.7k, avg=43630.58, stdev=51987.13 lat (usec): min=876, max=1086.7k, avg=43638.43, stdev=51986.35 clat percentiles (usec): | 1.00th=[ 1123], 5.00th=[ 1237], 10.00th=[ 1467], | 20.00th=[ 4359], 30.00th=[ 8848], 40.00th=[ 19006], | 50.00th=[ 31851], 60.00th=[ 42206], 70.00th=[ 54264], | 80.00th=[ 73925], 90.00th=[ 106431], 95.00th=[ 133694], | 99.00th=[ 198181], 99.50th=[ 227541], 99.90th=[ 283116], | 99.95th=[1082131], 99.99th=[1082131] bw ( KiB/s): min= 7, max= 127, per=25.27%, avg=41.44, stdev=19.97, samples=294 iops : min= 1, max= 31, avg= 9.70, stdev= 5.04, samples=294 lat (usec) : 50=0.39%, 100=1.92%, 250=0.13%, 500=0.13%, 1000=0.10% lat (msec) : 2=6.28%, 4=3.52%, 10=6.41%, 20=6.87%, 50=35.29% lat (msec) : 100=27.99%, 250=10.68%, 500=0.26%, 2000=0.03% cpu : usr=0.06%, sys=4.15%, ctx=6235, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178774: Wed Aug 26 10:34:01 2026 read: IOPS=10, BW=40.5KiB/s (41.5kB/s)(6052KiB/149503msec) clat (usec): min=35, max=963411, avg=55617.64, stdev=43619.50 lat (usec): min=35, max=963412, avg=55619.27, stdev=43619.39 clat percentiles (usec): | 1.00th=[ 50], 5.00th=[ 99], 10.00th=[ 18220], 20.00th=[ 27919], | 30.00th=[ 33817], 40.00th=[ 39060], 50.00th=[ 45876], 60.00th=[ 55313], | 70.00th=[ 67634], 80.00th=[ 81265], 90.00th=[101188], 95.00th=[124257], | 99.00th=[175113], 99.50th=[200279], 99.90th=[350225], 99.95th=[960496], | 99.99th=[960496] bw ( KiB/s): min= 5, max= 86, per=25.71%, avg=40.36, stdev=16.77, samples=291 iops : min= 1, max= 21, avg= 9.43, stdev= 4.23, samples=291 write: IOPS=10, BW=41.7KiB/s (42.7kB/s)(6236KiB/149503msec); 0 zone resets clat (usec): min=891, max=470433, avg=41603.71, stdev=45620.18 lat (usec): min=892, max=470435, avg=41607.30, stdev=45621.25 clat percentiles (usec): | 1.00th=[ 1123], 5.00th=[ 1237], 10.00th=[ 1532], 20.00th=[ 3884], | 30.00th=[ 7701], 40.00th=[ 16450], 50.00th=[ 28443], 60.00th=[ 39060], | 70.00th=[ 53216], 80.00th=[ 73925], 90.00th=[102237], 95.00th=[128451], | 99.00th=[193987], 99.50th=[248513], 99.90th=[316670], 99.95th=[471860], | 99.99th=[471860] bw ( KiB/s): min= 7, max= 93, per=25.34%, avg=41.56, stdev=18.16, samples=291 iops : min= 1, max= 23, avg= 9.73, stdev= 4.58, samples=291 lat (usec) : 50=0.55%, 100=1.92%, 250=0.07%, 750=0.10%, 1000=0.13% lat (msec) : 2=6.45%, 4=3.81%, 10=6.93%, 20=6.84%, 50=34.51% lat (msec) : 100=28.16%, 250=10.22%, 500=0.29%, 1000=0.03% cpu : usr=0.05%, sys=4.13%, ctx=6142, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=157KiB/s (161kB/s), 39.2KiB/s-40.5KiB/s (40.1kB/s-41.5kB/s), io=23.4MiB (24.6MB), run=147543-152845msec WRITE: bw=164KiB/s (168kB/s), 41.2KiB/s-43.0KiB/s (42.2kB/s-44.1kB/s), io=24.6MiB (25.7MB), run=147543-152845msec rand-rw: (groupid=0, jobs=1): err= 0: pid=178775: Wed Aug 26 10:34:52 2026 read: IOPS=7, BW=29.4KiB/s (30.1kB/s)(5992KiB/203698msec) clat (msec): min=5, max=1080, avg=52.95, stdev=56.67 lat (msec): min=5, max=1080, avg=52.96, stdev=56.67 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 15], 20.00th=[ 20], | 30.00th=[ 24], 40.00th=[ 29], 50.00th=[ 34], 60.00th=[ 42], | 70.00th=[ 55], 80.00th=[ 79], 90.00th=[ 122], 95.00th=[ 155], | 99.00th=[ 245], 99.50th=[ 257], 99.90th=[ 542], 99.95th=[ 1083], | 99.99th=[ 1083] bw ( KiB/s): min= 7, max= 112, per=26.18%, avg=30.63, stdev=21.84, samples=379 iops : min= 1, max= 28, avg= 6.97, stdev= 5.51, samples=379 write: IOPS=7, BW=30.9KiB/s (31.7kB/s)(6296KiB/203698msec); 0 zone resets clat (msec): min=12, max=466, avg=78.71, stdev=59.59 lat (msec): min=12, max=466, avg=78.71, stdev=59.59 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 24], 10.00th=[ 29], 20.00th=[ 36], | 30.00th=[ 43], 40.00th=[ 49], 50.00th=[ 57], 60.00th=[ 71], | 70.00th=[ 91], 80.00th=[ 115], 90.00th=[ 159], 95.00th=[ 197], | 99.00th=[ 300], 99.50th=[ 338], 99.90th=[ 451], 99.95th=[ 468], | 99.99th=[ 468] bw ( KiB/s): min= 7, max= 118, per=25.24%, avg=31.05, stdev=21.07, samples=392 iops : min= 1, max= 29, avg= 7.08, stdev= 5.31, samples=392 lat (msec) : 10=1.40%, 20=10.81%, 50=42.32%, 100=25.75%, 250=18.20% lat (msec) : 500=1.46%, 750=0.03%, 2000=0.03% cpu : usr=0.05%, sys=1.49%, ctx=4850, 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=178776: Wed Aug 26 10:34:52 2026 read: IOPS=7, BW=29.5KiB/s (30.2kB/s)(5940KiB/201689msec) clat (msec): min=6, max=1047, avg=53.11, stdev=55.27 lat (msec): min=6, max=1047, avg=53.12, stdev=55.27 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 19], | 30.00th=[ 24], 40.00th=[ 28], 50.00th=[ 34], 60.00th=[ 42], | 70.00th=[ 56], 80.00th=[ 81], 90.00th=[ 120], 95.00th=[ 163], | 99.00th=[ 239], 99.50th=[ 271], 99.90th=[ 426], 99.95th=[ 1045], | 99.99th=[ 1045] bw ( KiB/s): min= 7, max= 119, per=26.33%, avg=30.80, stdev=22.03, samples=373 iops : min= 1, max= 29, avg= 7.02, stdev= 5.56, samples=373 write: IOPS=7, BW=31.5KiB/s (32.2kB/s)(6348KiB/201689msec); 0 zone resets clat (msec): min=12, max=396, avg=77.08, stdev=55.31 lat (msec): min=12, max=396, avg=77.09, stdev=55.32 clat percentiles (msec): | 1.00th=[ 19], 5.00th=[ 25], 10.00th=[ 29], 20.00th=[ 36], | 30.00th=[ 43], 40.00th=[ 50], 50.00th=[ 59], 60.00th=[ 71], | 70.00th=[ 89], 80.00th=[ 111], 90.00th=[ 153], 95.00th=[ 182], | 99.00th=[ 288], 99.50th=[ 330], 99.90th=[ 397], 99.95th=[ 397], | 99.99th=[ 397] bw ( KiB/s): min= 7, max= 96, per=25.83%, avg=31.78, stdev=20.55, samples=387 iops : min= 1, max= 24, avg= 7.26, stdev= 5.18, samples=387 lat (msec) : 10=1.53%, 20=10.42%, 50=41.54%, 100=26.79%, 250=18.42% lat (msec) : 500=1.27%, 2000=0.03% cpu : usr=0.04%, sys=1.52%, ctx=4814, 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=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=178777: Wed Aug 26 10:34:52 2026 read: IOPS=7, BW=29.8KiB/s (30.5kB/s)(6028KiB/202317msec) clat (msec): min=5, max=347, avg=52.58, stdev=48.68 lat (msec): min=5, max=347, avg=52.58, stdev=48.68 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 13], 10.00th=[ 15], 20.00th=[ 20], | 30.00th=[ 25], 40.00th=[ 29], 50.00th=[ 36], 60.00th=[ 43], | 70.00th=[ 55], 80.00th=[ 75], 90.00th=[ 121], 95.00th=[ 153], | 99.00th=[ 236], 99.50th=[ 271], 99.90th=[ 338], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 7, max= 111, per=25.82%, avg=30.21, stdev=21.21, samples=385 iops : min= 1, max= 27, avg= 6.86, stdev= 5.35, samples=385 write: IOPS=7, BW=30.9KiB/s (31.7kB/s)(6260KiB/202317msec); 0 zone resets clat (msec): min=11, max=1059, avg=78.34, stdev=60.52 lat (msec): min=11, max=1059, avg=78.34, stdev=60.52 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 24], 10.00th=[ 29], 20.00th=[ 36], | 30.00th=[ 43], 40.00th=[ 51], 50.00th=[ 61], 60.00th=[ 72], | 70.00th=[ 92], 80.00th=[ 114], 90.00th=[ 150], 95.00th=[ 188], | 99.00th=[ 279], 99.50th=[ 305], 99.90th=[ 493], 99.95th=[ 1062], | 99.99th=[ 1062] bw ( KiB/s): min= 7, max= 103, per=24.99%, avg=30.74, stdev=20.27, samples=393 iops : min= 1, max= 25, avg= 7.00, stdev= 5.12, samples=393 lat (msec) : 10=0.98%, 20=10.29%, 50=41.86%, 100=27.31%, 250=18.36% lat (msec) : 500=1.17%, 2000=0.03% cpu : usr=0.04%, sys=1.45%, ctx=4725, 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=178778: Wed Aug 26 10:34:52 2026 read: IOPS=7, BW=29.0KiB/s (30.7kB/s)(6052KiB/202032msec) clat (msec): min=5, max=534, avg=53.04, stdev=50.38 lat (msec): min=5, max=534, avg=53.05, stdev=50.38 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 15], 20.00th=[ 20], | 30.00th=[ 24], 40.00th=[ 29], 50.00th=[ 35], 60.00th=[ 42], | 70.00th=[ 56], 80.00th=[ 80], 90.00th=[ 127], 95.00th=[ 159], | 99.00th=[ 226], 99.50th=[ 268], 99.90th=[ 355], 99.95th=[ 535], | 99.99th=[ 535] bw ( KiB/s): min= 7, max= 111, per=26.88%, avg=31.45, stdev=22.16, samples=373 iops : min= 1, max= 27, avg= 7.18, stdev= 5.60, samples=373 write: IOPS=7, BW=30.9KiB/s (31.6kB/s)(6236KiB/202032msec); 0 zone resets clat (msec): min=12, max=1085, avg=77.81, stdev=60.82 lat (msec): min=12, max=1085, avg=77.81, stdev=60.82 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 24], 10.00th=[ 29], 20.00th=[ 36], | 30.00th=[ 43], 40.00th=[ 51], 50.00th=[ 60], 60.00th=[ 71], | 70.00th=[ 90], 80.00th=[ 112], 90.00th=[ 146], 95.00th=[ 186], | 99.00th=[ 292], 99.50th=[ 342], 99.90th=[ 498], 99.95th=[ 1083], | 99.99th=[ 1083] bw ( KiB/s): min= 7, max= 119, per=25.13%, avg=30.91, stdev=20.16, samples=391 iops : min= 1, max= 29, avg= 7.04, stdev= 5.07, samples=391 lat (msec) : 10=1.33%, 20=11.17%, 50=40.53%, 100=27.02%, 250=18.75% lat (msec) : 500=1.14%, 750=0.03%, 2000=0.03% cpu : usr=0.05%, sys=1.43%, ctx=4669, 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=118KiB/s (121kB/s), 29.4KiB/s-29.0KiB/s (30.1kB/s-30.7kB/s), io=23.4MiB (24.6MB), run=201689-203698msec WRITE: bw=123KiB/s (126kB/s), 30.9KiB/s-31.5KiB/s (31.6kB/s-32.2kB/s), io=24.6MiB (25.7MB), run=201689-203698msec 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=178839: Wed Aug 26 10:35:42 2026 read: IOPS=9, BW=145KiB/s (149kB/s)(5920KiB/40700msec) clat (usec): min=34, max=243820, avg=55917.44, stdev=40077.43 lat (usec): min=34, max=243821, avg=55924.86, stdev=40079.18 clat percentiles (usec): | 1.00th=[ 51], 5.00th=[ 62], 10.00th=[ 83], 20.00th=[ 27395], | 30.00th=[ 34866], 40.00th=[ 44827], 50.00th=[ 50070], 60.00th=[ 57934], | 70.00th=[ 67634], 80.00th=[ 81265], 90.00th=[102237], 95.00th=[124257], | 99.00th=[217056], 99.50th=[225444], 99.90th=[244319], 99.95th=[244319], | 99.99th=[244319] bw ( KiB/s): min= 62, max= 286, per=24.79%, avg=145.04, stdev=55.65, samples=80 iops : min= 3, max= 17, avg= 8.26, stdev= 3.52, samples=80 write: IOPS=9, BW=156KiB/s (160kB/s)(6368KiB/40700msec); 0 zone resets clat (usec): min=1533, max=400409, avg=50124.86, stdev=50853.13 lat (usec): min=1535, max=400411, avg=50126.94, stdev=50853.14 clat percentiles (usec): | 1.00th=[ 1663], 5.00th=[ 2212], 10.00th=[ 3982], 20.00th=[ 7373], | 30.00th=[ 14091], 40.00th=[ 25297], 50.00th=[ 37487], 60.00th=[ 50594], | 70.00th=[ 60556], 80.00th=[ 82314], 90.00th=[119014], 95.00th=[149947], | 99.00th=[221250], 99.50th=[258999], 99.90th=[400557], 99.95th=[400557], | 99.99th=[400557] bw ( KiB/s): min= 25, max= 349, per=25.43%, avg=156.37, stdev=74.13, samples=80 iops : min= 1, max= 21, avg= 8.97, stdev= 4.69, samples=80 lat (usec) : 50=0.39%, 100=4.82%, 250=0.39%, 500=0.13%, 1000=0.13% lat (msec) : 2=1.95%, 4=3.26%, 10=7.55%, 20=7.29%, 50=28.78% lat (msec) : 100=32.68%, 250=12.24%, 500=0.39% cpu : usr=0.06%, sys=4.28%, ctx=1677, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178840: Wed Aug 26 10:35:42 2026 read: IOPS=9, BW=145KiB/s (148kB/s)(5744KiB/39629msec) clat (usec): min=46, max=200838, avg=57103.85, stdev=37148.10 lat (usec): min=47, max=200839, avg=57134.51, stdev=37147.23 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 61], 10.00th=[ 110], 20.00th=[ 28705], | 30.00th=[ 40633], 40.00th=[ 47449], 50.00th=[ 53740], 60.00th=[ 61604], | 70.00th=[ 71828], 80.00th=[ 85459], 90.00th=[102237], 95.00th=[135267], | 99.00th=[164627], 99.50th=[170918], 99.90th=[200279], 99.95th=[200279], | 99.99th=[200279] bw ( KiB/s): min= 30, max= 284, per=24.73%, avg=144.65, stdev=54.18, samples=77 iops : min= 1, max= 17, avg= 8.23, stdev= 3.44, samples=77 write: IOPS=10, BW=165KiB/s (169kB/s)(6544KiB/39629msec); 0 zone resets clat (usec): min=1463, max=299242, avg=46663.65, stdev=47162.48 lat (usec): min=1464, max=299243, avg=46665.80, stdev=47162.65 clat percentiles (usec): | 1.00th=[ 1729], 5.00th=[ 2442], 10.00th=[ 3752], 20.00th=[ 6718], | 30.00th=[ 11863], 40.00th=[ 20317], 50.00th=[ 33162], 60.00th=[ 47973], | 70.00th=[ 61604], 80.00th=[ 79168], 90.00th=[108528], 95.00th=[139461], | 99.00th=[193987], 99.50th=[254804], 99.90th=[299893], 99.95th=[299893], | 99.99th=[299893] bw ( KiB/s): min= 31, max= 380, per=26.74%, avg=164.44, stdev=74.35, samples=77 iops : min= 1, max= 23, avg= 9.48, stdev= 4.70, samples=77 lat (usec) : 50=0.13%, 100=3.91%, 250=1.43% lat (msec) : 2=1.56%, 4=4.17%, 10=9.38%, 20=7.42%, 50=25.52% lat (msec) : 100=34.64%, 250=11.46%, 500=0.39% cpu : usr=0.06%, sys=4.71%, ctx=1664, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178841: Wed Aug 26 10:35:42 2026 read: IOPS=9, BW=153KiB/s (157kB/s)(6256KiB/40911msec) clat (usec): min=38, max=193972, avg=55788.98, stdev=35913.39 lat (usec): min=38, max=193972, avg=55790.23, stdev=35913.40 clat percentiles (usec): | 1.00th=[ 45], 5.00th=[ 61], 10.00th=[ 85], 20.00th=[ 27657], | 30.00th=[ 38011], 40.00th=[ 46400], 50.00th=[ 54264], 60.00th=[ 61080], | 70.00th=[ 70779], 80.00th=[ 84411], 90.00th=[101188], 95.00th=[120062], | 99.00th=[152044], 99.50th=[152044], 99.90th=[193987], 99.95th=[193987], | 99.99th=[193987] bw ( KiB/s): min= 31, max= 317, per=26.22%, avg=153.41, stdev=67.77, samples=80 iops : min= 1, max= 19, avg= 8.80, stdev= 4.26, samples=80 write: IOPS=9, BW=147KiB/s (151kB/s)(6032KiB/40911msec); 0 zone resets clat (usec): min=1480, max=293054, avg=50551.56, stdev=50496.06 lat (usec): min=1481, max=293056, avg=50554.47, stdev=50495.77 clat percentiles (usec): | 1.00th=[ 1663], 5.00th=[ 1909], 10.00th=[ 3982], 20.00th=[ 8225], | 30.00th=[ 15008], 40.00th=[ 26084], 50.00th=[ 35914], 60.00th=[ 45876], | 70.00th=[ 64226], 80.00th=[ 85459], 90.00th=[120062], 95.00th=[152044], | 99.00th=[225444], 99.50th=[261096], 99.90th=[291505], 99.95th=[291505], | 99.99th=[291505] bw ( KiB/s): min= 31, max= 382, per=23.79%, avg=146.29, stdev=70.13, samples=80 iops : min= 1, max= 23, avg= 8.34, stdev= 4.43, samples=80 lat (usec) : 50=0.65%, 100=4.95%, 250=0.39%, 500=0.39%, 750=0.13% lat (usec) : 1000=0.26% lat (msec) : 2=2.60%, 4=2.73%, 10=6.64%, 20=5.47%, 50=29.69% lat (msec) : 100=33.07%, 250=12.63%, 500=0.39% cpu : usr=0.05%, sys=4.14%, ctx=1675, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178842: Wed Aug 26 10:35:42 2026 read: IOPS=9, BW=151KiB/s (155kB/s)(6032KiB/39960msec) clat (usec): min=33, max=252180, avg=58909.11, stdev=40362.06 lat (usec): min=33, max=252181, avg=58931.80, stdev=40396.63 clat percentiles (usec): | 1.00th=[ 47], 5.00th=[ 56], 10.00th=[ 68], 20.00th=[ 30016], | 30.00th=[ 40633], 40.00th=[ 46924], 50.00th=[ 54789], 60.00th=[ 63177], | 70.00th=[ 73925], 80.00th=[ 84411], 90.00th=[107480], 95.00th=[135267], | 99.00th=[181404], 99.50th=[217056], 99.90th=[252707], 99.95th=[252707], | 99.99th=[252707] bw ( KiB/s): min= 31, max= 317, per=25.92%, avg=151.64, stdev=66.86, samples=77 iops : min= 1, max= 19, avg= 8.68, stdev= 4.22, samples=77 write: IOPS=9, BW=157KiB/s (160kB/s)(6256KiB/39960msec); 0 zone resets clat (usec): min=1562, max=291509, avg=45207.11, stdev=49110.79 lat (usec): min=1562, max=291511, avg=45258.60, stdev=49103.08 clat percentiles (usec): | 1.00th=[ 1647], 5.00th=[ 1991], 10.00th=[ 3130], 20.00th=[ 6456], | 30.00th=[ 9896], 40.00th=[ 17957], 50.00th=[ 28181], 60.00th=[ 40633], | 70.00th=[ 55837], 80.00th=[ 76022], 90.00th=[115868], 95.00th=[154141], | 99.00th=[231736], 99.50th=[242222], 99.90th=[291505], 99.95th=[291505], | 99.99th=[291505] bw ( KiB/s): min= 31, max= 379, per=25.44%, avg=156.47, stdev=73.43, samples=78 iops : min= 1, max= 23, avg= 8.97, stdev= 4.63, samples=78 lat (usec) : 50=0.78%, 100=4.82%, 250=0.65%, 750=0.13%, 1000=0.13% lat (msec) : 2=2.60%, 4=4.04%, 10=9.11%, 20=6.77%, 50=26.82% lat (msec) : 100=31.12%, 250=12.76%, 500=0.26% cpu : usr=0.05%, sys=4.37%, ctx=1608, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=585KiB/s (600kB/s), 145KiB/s-153KiB/s (148kB/s-157kB/s), io=23.4MiB (24.5MB), run=39629-40911msec WRITE: bw=616KiB/s (631kB/s), 147KiB/s-165KiB/s (151kB/s-169kB/s), io=24.6MiB (25.8MB), run=39629-40911msec rand-rw: (groupid=0, jobs=1): err= 0: pid=178834: Wed Aug 26 10:35:57 2026 read: IOPS=6, BW=104KiB/s (107kB/s)(5920KiB/56724msec) clat (msec): min=6, max=263, avg=57.56, stdev=50.80 lat (msec): min=6, max=263, avg=57.56, stdev=50.80 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 13], 10.00th=[ 16], 20.00th=[ 21], | 30.00th=[ 27], 40.00th=[ 33], 50.00th=[ 40], 60.00th=[ 50], | 70.00th=[ 61], 80.00th=[ 81], 90.00th=[ 133], 95.00th=[ 174], | 99.00th=[ 251], 99.50th=[ 257], 99.90th=[ 264], 99.95th=[ 264], | 99.99th=[ 264] bw ( KiB/s): min= 30, max= 352, per=24.71%, avg=104.30, stdev=69.66, samples=108 iops : min= 1, max= 22, avg= 5.71, stdev= 4.48, samples=108 write: IOPS=7, BW=112KiB/s (115kB/s)(6368KiB/56724msec); 0 zone resets clat (msec): min=14, max=316, avg=88.30, stdev=56.90 lat (msec): min=14, max=316, avg=88.31, stdev=56.90 clat percentiles (msec): | 1.00th=[ 20], 5.00th=[ 27], 10.00th=[ 33], 20.00th=[ 44], | 30.00th=[ 52], 40.00th=[ 61], 50.00th=[ 68], 60.00th=[ 84], | 70.00th=[ 104], 80.00th=[ 136], 90.00th=[ 176], 95.00th=[ 201], | 99.00th=[ 288], 99.50th=[ 313], 99.90th=[ 317], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 31, max= 288, per=25.25%, avg=112.12, stdev=67.15, samples=109 iops : min= 1, max= 18, avg= 6.19, stdev= 4.26, samples=109 lat (msec) : 10=1.17%, 20=8.07%, 50=34.77%, 100=31.77%, 250=22.92% lat (msec) : 500=1.30% cpu : usr=0.04%, sys=1.39%, ctx=1142, 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=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=178835: Wed Aug 26 10:35:57 2026 read: IOPS=6, BW=102KiB/s (104kB/s)(5744KiB/56453msec) clat (msec): min=7, max=365, avg=58.85, stdev=51.89 lat (msec): min=7, max=365, avg=58.85, stdev=51.89 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 14], 10.00th=[ 18], 20.00th=[ 22], | 30.00th=[ 28], 40.00th=[ 34], 50.00th=[ 42], 60.00th=[ 51], | 70.00th=[ 64], 80.00th=[ 82], 90.00th=[ 138], 95.00th=[ 184], | 99.00th=[ 220], 99.50th=[ 253], 99.90th=[ 368], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 30, max= 320, per=25.16%, avg=106.19, stdev=72.26, samples=106 iops : min= 1, max= 20, avg= 5.82, stdev= 4.58, samples=106 write: IOPS=7, BW=116KiB/s (119kB/s)(6544KiB/56453msec); 0 zone resets clat (msec): min=16, max=361, avg=85.94, stdev=53.95 lat (msec): min=16, max=361, avg=85.95, stdev=53.95 clat percentiles (msec): | 1.00th=[ 23], 5.00th=[ 29], 10.00th=[ 34], 20.00th=[ 42], | 30.00th=[ 50], 40.00th=[ 61], 50.00th=[ 70], 60.00th=[ 84], | 70.00th=[ 97], 80.00th=[ 127], 90.00th=[ 167], 95.00th=[ 192], | 99.00th=[ 264], 99.50th=[ 264], 99.90th=[ 363], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 31, max= 350, per=26.23%, avg=116.48, stdev=68.73, samples=110 iops : min= 1, max= 21, avg= 6.47, stdev= 4.37, samples=110 lat (msec) : 10=0.39%, 20=7.16%, 50=36.72%, 100=34.24%, 250=20.44% lat (msec) : 500=1.04% cpu : usr=0.05%, sys=1.34%, ctx=1149, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178836: Wed Aug 26 10:35:57 2026 read: IOPS=6, BW=112KiB/s (114kB/s)(6256KiB/55978msec) clat (msec): min=8, max=375, avg=59.17, stdev=52.40 lat (msec): min=8, max=375, avg=59.17, stdev=52.40 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 14], 10.00th=[ 17], 20.00th=[ 23], | 30.00th=[ 28], 40.00th=[ 34], 50.00th=[ 41], 60.00th=[ 50], | 70.00th=[ 64], 80.00th=[ 84], 90.00th=[ 134], 95.00th=[ 182], | 99.00th=[ 247], 99.50th=[ 279], 99.90th=[ 376], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 30, max= 447, per=26.68%, avg=112.61, stdev=78.93, samples=109 iops : min= 1, max= 27, avg= 6.23, stdev= 4.98, samples=109 write: IOPS=6, BW=108KiB/s (110kB/s)(6032KiB/55978msec); 0 zone resets clat (msec): min=17, max=427, avg=86.91, stdev=59.37 lat (msec): min=17, max=427, avg=86.91, stdev=59.38 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 28], 10.00th=[ 34], 20.00th=[ 41], | 30.00th=[ 48], 40.00th=[ 58], 50.00th=[ 69], 60.00th=[ 85], | 70.00th=[ 103], 80.00th=[ 127], 90.00th=[ 165], 95.00th=[ 201], | 99.00th=[ 275], 99.50th=[ 393], 99.90th=[ 426], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 30, max= 318, per=24.11%, avg=107.06, stdev=64.81, samples=109 iops : min= 1, max= 19, avg= 5.88, stdev= 4.12, samples=109 lat (msec) : 10=0.13%, 20=8.72%, 50=38.41%, 100=29.30%, 250=22.14% lat (msec) : 500=1.30% cpu : usr=0.03%, sys=1.38%, ctx=1173, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178837: Wed Aug 26 10:35:57 2026 read: IOPS=6, BW=107KiB/s (109kB/s)(6032KiB/56456msec) clat (msec): min=8, max=361, avg=62.90, stdev=54.90 lat (msec): min=8, max=361, avg=62.90, stdev=54.90 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 16], 10.00th=[ 19], 20.00th=[ 26], | 30.00th=[ 31], 40.00th=[ 36], 50.00th=[ 42], 60.00th=[ 52], | 70.00th=[ 68], 80.00th=[ 96], 90.00th=[ 148], 95.00th=[ 184], | 99.00th=[ 251], 99.50th=[ 305], 99.90th=[ 363], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 31, max= 351, per=25.58%, avg=107.95, stdev=74.06, samples=109 iops : min= 1, max= 21, avg= 5.94, stdev= 4.70, samples=109 write: IOPS=6, BW=111KiB/s (113kB/s)(6256KiB/56456msec); 0 zone resets clat (msec): min=17, max=442, avg=83.03, stdev=54.31 lat (msec): min=17, max=442, avg=83.03, stdev=54.31 clat percentiles (msec): | 1.00th=[ 21], 5.00th=[ 29], 10.00th=[ 33], 20.00th=[ 42], | 30.00th=[ 51], 40.00th=[ 59], 50.00th=[ 67], 60.00th=[ 79], | 70.00th=[ 93], 80.00th=[ 120], 90.00th=[ 153], 95.00th=[ 197], | 99.00th=[ 284], 99.50th=[ 309], 99.90th=[ 443], 99.95th=[ 443], | 99.99th=[ 443] bw ( KiB/s): min= 31, max= 287, per=25.09%, avg=111.39, stdev=64.75, samples=110 iops : min= 1, max= 17, avg= 6.15, stdev= 4.10, samples=110 lat (msec) : 10=0.39%, 20=6.64%, 50=36.72%, 100=33.07%, 250=21.88% lat (msec) : 500=1.30% cpu : usr=0.03%, sys=1.36%, ctx=1173, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=422KiB/s (432kB/s), 102KiB/s-112KiB/s (104kB/s-114kB/s), io=23.4MiB (24.5MB), run=55978-56724msec WRITE: bw=444KiB/s (455kB/s), 108KiB/s-116KiB/s (110kB/s-119kB/s), io=24.6MiB (25.8MB), run=55978-56724msec 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=178855: Wed Aug 26 10:36:14 2026 read: IOPS=2, BW=2086KiB/s (2136kB/s)(7168KiB/3436msec) clat (msec): min=67, max=925, avg=242.67, stdev=307.99 lat (msec): min=67, max=925, avg=242.67, stdev=307.99 clat percentiles (msec): | 1.00th=[ 68], 5.00th=[ 68], 10.00th=[ 68], 20.00th=[ 105], | 30.00th=[ 109], 40.00th=[ 109], 50.00th=[ 111], 60.00th=[ 114], | 70.00th=[ 114], 80.00th=[ 271], 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= 1681, max= 5919, per=75.00%, avg=3211.67, stdev=2351.29, samples=3 iops : min= 1, max= 5, avg= 2.33, stdev= 2.31, samples=3 write: IOPS=1, BW=1490KiB/s (1526kB/s)(5120KiB/3436msec); 0 zone resets clat (msec): min=143, max=594, avg=335.17, stdev=204.00 lat (msec): min=143, max=595, avg=335.86, stdev=203.78 clat percentiles (msec): | 1.00th=[ 144], 5.00th=[ 144], 10.00th=[ 144], 20.00th=[ 144], | 30.00th=[ 161], 40.00th=[ 161], 50.00th=[ 275], 60.00th=[ 275], | 70.00th=[ 502], 80.00th=[ 502], 90.00th=[ 592], 95.00th=[ 592], | 99.00th=[ 592], 99.50th=[ 592], 99.90th=[ 592], 99.95th=[ 592], | 99.99th=[ 592] bw ( KiB/s): min= 1479, max= 4096, per=39.54%, avg=2370.50, stdev=1173.77, samples=4 iops : min= 1, max= 4, avg= 1.75, stdev= 1.50, samples=4 lat (msec) : 100=8.33%, 250=50.00%, 500=16.67%, 750=16.67%, 1000=8.33% cpu : usr=0.00%, sys=4.83%, ctx=73, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178856: Wed Aug 26 10:36:14 2026 read: IOPS=0, BW=430KiB/s (440kB/s)(2048KiB/4768msec) clat (msec): min=112, max=835, avg=474.12, stdev=510.77 lat (msec): min=112, max=835, avg=474.12, stdev=510.77 clat percentiles (msec): | 1.00th=[ 113], 5.00th=[ 113], 10.00th=[ 113], 20.00th=[ 113], | 30.00th=[ 113], 40.00th=[ 113], 50.00th=[ 113], 60.00th=[ 835], | 70.00th=[ 835], 80.00th=[ 835], 90.00th=[ 835], 95.00th=[ 835], | 99.00th=[ 835], 99.50th=[ 835], 99.90th=[ 835], 99.95th=[ 835], | 99.99th=[ 835] bw ( KiB/s): min= 1452, max= 1935, per=39.55%, avg=1693.50, stdev=341.53, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2148KiB/s (2199kB/s)(10.0MiB/4768msec); 0 zone resets clat (msec): min=103, max=987, avg=378.29, stdev=292.32 lat (msec): min=103, max=987, avg=378.37, stdev=292.31 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 104], 10.00th=[ 104], 20.00th=[ 116], | 30.00th=[ 140], 40.00th=[ 140], 50.00th=[ 264], 60.00th=[ 342], | 70.00th=[ 443], 80.00th=[ 584], 90.00th=[ 659], 95.00th=[ 986], | 99.00th=[ 986], 99.50th=[ 986], 99.90th=[ 986], 99.95th=[ 986], | 99.99th=[ 986] bw ( KiB/s): min= 1681, max= 4357, per=46.76%, avg=2803.20, stdev=1297.90, samples=5 iops : min= 1, max= 4, avg= 2.00, stdev= 1.41, samples=5 lat (msec) : 250=41.67%, 500=25.00%, 750=16.67%, 1000=16.67% cpu : usr=0.06%, sys=3.17%, ctx=76, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=178857: Wed Aug 26 10:36:14 2026 read: IOPS=1, BW=1414KiB/s (1448kB/s)(6144KiB/4346msec) clat (msec): min=142, max=591, avg=352.65, stdev=180.57 lat (msec): min=142, max=591, avg=352.65, stdev=180.57 clat percentiles (msec): | 1.00th=[ 144], 5.00th=[ 144], 10.00th=[ 144], 20.00th=[ 178], | 30.00th=[ 178], 40.00th=[ 279], 50.00th=[ 279], 60.00th=[ 435], | 70.00th=[ 493], 80.00th=[ 493], 90.00th=[ 592], 95.00th=[ 592], | 99.00th=[ 592], 99.50th=[ 592], 99.90th=[ 592], 99.95th=[ 592], | 99.99th=[ 592] bw ( KiB/s): min= 1508, max= 2048, per=42.71%, avg=1828.80, stdev=233.02, samples=5 iops : min= 1, max= 2, avg= 1.20, stdev= 0.45, samples=5 write: IOPS=1, BW=1414KiB/s (1448kB/s)(6144KiB/4346msec); 0 zone resets clat (msec): min=107, max=666, avg=363.25, stdev=248.70 lat (msec): min=107, max=666, avg=363.34, stdev=248.70 clat percentiles (msec): | 1.00th=[ 108], 5.00th=[ 108], 10.00th=[ 108], 20.00th=[ 132], | 30.00th=[ 132], 40.00th=[ 184], 50.00th=[ 184], 60.00th=[ 542], | 70.00th=[ 542], 80.00th=[ 542], 90.00th=[ 667], 95.00th=[ 667], | 99.00th=[ 667], 99.50th=[ 667], 99.90th=[ 667], 99.95th=[ 667], | 99.99th=[ 667] bw ( KiB/s): min= 1872, max= 4524, per=46.32%, avg=2777.00, stdev=1513.27, samples=3 iops : min= 1, max= 4, avg= 2.00, stdev= 1.73, samples=3 lat (msec) : 250=41.67%, 500=25.00%, 750=33.33% cpu : usr=0.05%, sys=3.64%, ctx=72, 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=178858: Wed Aug 26 10:36:14 2026 read: IOPS=1, BW=1071KiB/s (1096kB/s)(5120KiB/4782msec) clat (msec): min=55, max=864, avg=319.44, stdev=318.31 lat (msec): min=55, max=864, avg=319.44, stdev=318.31 clat percentiles (msec): | 1.00th=[ 56], 5.00th=[ 56], 10.00th=[ 56], 20.00th=[ 56], | 30.00th=[ 138], 40.00th=[ 138], 50.00th=[ 262], 60.00th=[ 262], | 70.00th=[ 279], 80.00th=[ 279], 90.00th=[ 869], 95.00th=[ 869], | 99.00th=[ 869], 99.50th=[ 869], 99.90th=[ 869], 99.95th=[ 869], | 99.99th=[ 869] bw ( KiB/s): min= 4071, max= 4096, per=95.36%, avg=4083.50, stdev=17.68, samples=2 iops : min= 3, max= 4, avg= 3.50, stdev= 0.71, samples=2 write: IOPS=1, BW=1499KiB/s (1535kB/s)(7168KiB/4782msec); 0 zone resets clat (msec): min=129, max=830, avg=448.75, stdev=242.37 lat (msec): min=130, max=830, avg=448.84, stdev=242.39 clat percentiles (msec): | 1.00th=[ 130], 5.00th=[ 130], 10.00th=[ 130], 20.00th=[ 176], | 30.00th=[ 397], 40.00th=[ 397], 50.00th=[ 489], 60.00th=[ 542], | 70.00th=[ 542], 80.00th=[ 575], 90.00th=[ 835], 95.00th=[ 835], | 99.00th=[ 835], 99.50th=[ 835], 99.90th=[ 835], 99.95th=[ 835], | 99.99th=[ 835] bw ( KiB/s): min= 1681, max= 3011, per=35.48%, avg=2126.80, stdev=515.35, samples=5 iops : min= 1, max= 2, avg= 1.20, stdev= 0.45, samples=5 lat (msec) : 100=8.33%, 250=25.00%, 500=33.33%, 750=16.67%, 1000=16.67% cpu : usr=0.00%, sys=5.21%, ctx=80, 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=4283KiB/s (4386kB/s), 430KiB/s-2086KiB/s (440kB/s-2136kB/s), io=20.0MiB (20.0MB), run=3436-4782msec WRITE: bw=5996KiB/s (6140kB/s), 1414KiB/s-2148KiB/s (1448kB/s-2199kB/s), io=28.0MiB (29.4MB), run=3436-4782msec rand-rw: (groupid=0, jobs=1): err= 0: pid=178860: Wed Aug 26 10:36:14 2026 read: IOPS=2, BW=2309KiB/s (2365kB/s)(7168KiB/3104msec) clat (usec): min=543, max=305383, avg=192896.43, stdev=95688.88 lat (usec): min=544, max=305384, avg=192897.64, stdev=95688.85 clat percentiles (usec): | 1.00th=[ 545], 5.00th=[ 545], 10.00th=[ 545], 20.00th=[166724], | 30.00th=[187696], 40.00th=[187696], 50.00th=[212861], 60.00th=[233833], | 70.00th=[233833], 80.00th=[242222], 90.00th=[304088], 95.00th=[304088], | 99.00th=[304088], 99.50th=[304088], 99.90th=[304088], 99.95th=[304088], | 99.99th=[304088] bw ( KiB/s): min= 2003, max= 4225, per=72.97%, avg=3417.00, stdev=1228.72, samples=3 iops : min= 1, max= 4, avg= 2.67, stdev= 1.53, samples=3 write: IOPS=1, BW=1649KiB/s (1689kB/s)(5120KiB/3104msec); 0 zone resets clat (msec): min=140, max=715, avg=350.22, stdev=235.90 lat (msec): min=141, max=715, avg=350.30, stdev=235.89 clat percentiles (msec): | 1.00th=[ 142], 5.00th=[ 142], 10.00th=[ 142], 20.00th=[ 142], | 30.00th=[ 176], 40.00th=[ 176], 50.00th=[ 275], 60.00th=[ 275], | 70.00th=[ 447], 80.00th=[ 447], 90.00th=[ 718], 95.00th=[ 718], | 99.00th=[ 718], 99.50th=[ 718], 99.90th=[ 718], 99.95th=[ 718], | 99.99th=[ 718] bw ( KiB/s): min= 2003, max= 2043, per=30.89%, avg=2025.00, stdev=21.04, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 lat (usec) : 750=8.33% lat (msec) : 250=58.33%, 500=25.00%, 750=8.33% cpu : usr=0.03%, sys=17.69%, ctx=148, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178861: Wed Aug 26 10:36:14 2026 read: IOPS=0, BW=468KiB/s (480kB/s)(2048KiB/4373msec) clat (usec): min=1097, max=211136, avg=106117.20, stdev=148519.77 lat (usec): min=1098, max=211138, avg=106118.71, stdev=148520.41 clat percentiles (usec): | 1.00th=[ 1106], 5.00th=[ 1106], 10.00th=[ 1106], 20.00th=[ 1106], | 30.00th=[ 1106], 40.00th=[ 1106], 50.00th=[ 1106], 60.00th=[210764], | 70.00th=[210764], 80.00th=[210764], 90.00th=[210764], 95.00th=[210764], | 99.00th=[210764], 99.50th=[210764], 99.90th=[210764], 99.95th=[210764], | 99.99th=[210764] bw ( KiB/s): min= 1992, max= 2011, per=42.74%, avg=2001.50, stdev=13.44, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2342KiB/s (2398kB/s)(10.0MiB/4373msec); 0 zone resets clat (msec): min=87, max=784, avg=415.89, stdev=267.55 lat (msec): min=87, max=785, avg=415.97, stdev=267.54 clat percentiles (msec): | 1.00th=[ 88], 5.00th=[ 88], 10.00th=[ 88], 20.00th=[ 155], | 30.00th=[ 163], 40.00th=[ 201], 50.00th=[ 380], 60.00th=[ 405], | 70.00th=[ 510], 80.00th=[ 693], 90.00th=[ 785], 95.00th=[ 785], | 99.00th=[ 785], 99.50th=[ 785], 99.90th=[ 785], 99.95th=[ 785], | 99.99th=[ 785] bw ( KiB/s): min= 1992, max= 4087, per=36.03%, avg=2362.00, stdev=845.33, samples=6 iops : min= 1, max= 3, avg= 1.50, stdev= 0.84, samples=6 lat (msec) : 2=8.33%, 100=8.33%, 250=33.33%, 500=16.67%, 750=16.67% lat (msec) : 1000=16.67% cpu : usr=0.02%, sys=13.40%, ctx=164, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178862: Wed Aug 26 10:36:14 2026 read: IOPS=1, BW=2020KiB/s (2068kB/s)(6144KiB/3042msec) clat (usec): min=437, max=267547, avg=75672.12, stdev=111282.22 lat (usec): min=439, max=267547, avg=75673.22, stdev=111281.70 clat percentiles (usec): | 1.00th=[ 437], 5.00th=[ 437], 10.00th=[ 437], 20.00th=[ 441], | 30.00th=[ 441], 40.00th=[ 1401], 50.00th=[ 1401], 60.00th=[ 30016], | 70.00th=[154141], 80.00th=[154141], 90.00th=[267387], 95.00th=[267387], | 99.00th=[267387], 99.50th=[267387], 99.90th=[267387], 99.95th=[267387], | 99.99th=[267387] bw ( KiB/s): min= 2003, max= 4087, per=72.44%, avg=3392.33, stdev=1203.20, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=1, BW=2020KiB/s (2068kB/s)(6144KiB/3042msec); 0 zone resets clat (msec): min=197, max=759, avg=430.29, stdev=213.71 lat (msec): min=197, max=759, avg=430.74, stdev=213.64 clat percentiles (msec): | 1.00th=[ 197], 5.00th=[ 197], 10.00th=[ 197], 20.00th=[ 205], | 30.00th=[ 205], 40.00th=[ 397], 50.00th=[ 397], 60.00th=[ 493], | 70.00th=[ 531], 80.00th=[ 531], 90.00th=[ 760], 95.00th=[ 760], | 99.00th=[ 760], 99.50th=[ 760], 99.90th=[ 760], 99.95th=[ 760], | 99.99th=[ 760] bw ( KiB/s): min= 2003, max= 2888, per=34.23%, avg=2244.25, stdev=429.58, samples=4 iops : min= 1, max= 2, avg= 1.25, stdev= 0.50, samples=4 lat (usec) : 500=16.67% lat (msec) : 2=8.33%, 50=8.33%, 250=25.00%, 500=25.00%, 750=8.33% lat (msec) : 1000=8.33% cpu : usr=0.00%, sys=17.76%, ctx=111, 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=178863: Wed Aug 26 10:36:14 2026 read: IOPS=1, BW=1439KiB/s (1473kB/s)(5120KiB/3559msec) clat (usec): min=629, max=685390, avg=233626.16, stdev=282596.57 lat (usec): min=630, max=685392, avg=233627.19, stdev=282596.48 clat percentiles (usec): | 1.00th=[ 627], 5.00th=[ 627], 10.00th=[ 627], 20.00th=[ 627], | 30.00th=[ 2769], 40.00th=[ 2769], 50.00th=[177210], 60.00th=[177210], | 70.00th=[299893], 80.00th=[299893], 90.00th=[683672], 95.00th=[683672], | 99.00th=[683672], 99.50th=[683672], 99.90th=[683672], 99.95th=[683672], | 99.99th=[683672] bw ( KiB/s): min= 8015, max= 8015, per=100.00%, avg=8015.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=1, BW=2014KiB/s (2062kB/s)(7168KiB/3559msec); 0 zone resets clat (msec): min=169, max=562, avg=341.34, stdev=165.03 lat (msec): min=169, max=563, avg=341.43, stdev=165.03 clat percentiles (msec): | 1.00th=[ 169], 5.00th=[ 169], 10.00th=[ 169], 20.00th=[ 222], | 30.00th=[ 236], 40.00th=[ 236], 50.00th=[ 251], 60.00th=[ 388], | 70.00th=[ 388], 80.00th=[ 558], 90.00th=[ 567], 95.00th=[ 567], | 99.00th=[ 567], 99.50th=[ 567], 99.90th=[ 567], 99.95th=[ 567], | 99.99th=[ 567] bw ( KiB/s): min= 1358, max= 4087, per=43.59%, avg=2858.00, stdev=1381.76, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 lat (usec) : 750=8.33% lat (msec) : 4=8.33%, 250=33.33%, 500=25.00%, 750=25.00% cpu : usr=0.06%, sys=13.77%, ctx=195, 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=4683KiB/s (4796kB/s), 468KiB/s-2309KiB/s (480kB/s-2365kB/s), io=20.0MiB (20.0MB), run=3042-4373msec WRITE: bw=6557KiB/s (6714kB/s), 1649KiB/s-2342KiB/s (1689kB/s-2398kB/s), io=28.0MiB (29.4MB), run=3042-4373msec 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=178870: Wed Aug 26 10:36:30 2026 read: IOPS=0, BW=3601KiB/s (3688kB/s)(12.0MiB/3412msec) clat (msec): min=838, max=1357, avg=1078.14, stdev=261.67 lat (msec): min=838, max=1357, avg=1078.14, stdev=261.67 clat percentiles (msec): | 1.00th=[ 835], 5.00th=[ 835], 10.00th=[ 835], 20.00th=[ 835], | 30.00th=[ 835], 40.00th=[ 1036], 50.00th=[ 1036], 60.00th=[ 1036], | 70.00th=[ 1351], 80.00th=[ 1351], 90.00th=[ 1351], 95.00th=[ 1351], | 99.00th=[ 1351], 99.50th=[ 1351], 99.90th=[ 1351], 99.95th=[ 1351], | 99.99th=[ 1351] bw ( KiB/s): min= 8094, max= 8143, per=100.00%, avg=8118.50, stdev=34.65, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=33.33%, 2000=66.67% cpu : usr=0.00%, sys=11.73%, ctx=305, 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=178871: Wed Aug 26 10:36:30 2026 read: IOPS=0, BW=1309KiB/s (1341kB/s)(4096KiB/3128msec) clat (nsec): min=1308.3M, max=1308.3M, avg=1308334777.00, stdev= 0.00 lat (nsec): min=1308.3M, max=1308.3M, avg=1308337650.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1301], 5.00th=[ 1301], 10.00th=[ 1301], 20.00th=[ 1301], | 30.00th=[ 1301], 40.00th=[ 1301], 50.00th=[ 1301], 60.00th=[ 1301], | 70.00th=[ 1301], 80.00th=[ 1301], 90.00th=[ 1301], 95.00th=[ 1301], | 99.00th=[ 1301], 99.50th=[ 1301], 99.90th=[ 1301], 99.95th=[ 1301], | 99.99th=[ 1301] 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=2619KiB/s (2682kB/s)(8192KiB/3128msec); 0 zone resets clat (msec): min=672, max=879, avg=776.04, stdev=146.46 lat (msec): min=672, max=880, avg=776.55, stdev=146.76 clat percentiles (msec): | 1.00th=[ 676], 5.00th=[ 676], 10.00th=[ 676], 20.00th=[ 676], | 30.00th=[ 676], 40.00th=[ 676], 50.00th=[ 676], 60.00th=[ 877], | 70.00th=[ 877], 80.00th=[ 877], 90.00th=[ 877], 95.00th=[ 877], | 99.00th=[ 877], 99.50th=[ 877], 99.90th=[ 877], 99.95th=[ 877], | 99.99th=[ 877] bw ( KiB/s): min= 8143, max= 8143, per=100.00%, avg=8143.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=6.17%, ctx=201, 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=178872: Wed Aug 26 10:36:30 2026 write: IOPS=0, BW=2864KiB/s (2932kB/s)(12.0MiB/4291msec); 0 zone resets clat (msec): min=961, max=1607, avg=1362.23, stdev=350.00 lat (msec): min=962, max=1608, avg=1363.42, stdev=349.74 clat percentiles (msec): | 1.00th=[ 961], 5.00th=[ 961], 10.00th=[ 961], 20.00th=[ 961], | 30.00th=[ 961], 40.00th=[ 1519], 50.00th=[ 1519], 60.00th=[ 1519], | 70.00th=[ 1603], 80.00th=[ 1603], 90.00th=[ 1603], 95.00th=[ 1603], | 99.00th=[ 1603], 99.50th=[ 1603], 99.90th=[ 1603], 99.95th=[ 1603], | 99.99th=[ 1603] bw ( KiB/s): min= 8078, max= 8094, per=100.00%, avg=8086.00, stdev=11.31, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=33.33%, 2000=66.67% cpu : usr=0.00%, sys=5.03%, ctx=102, 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=178873: Wed Aug 26 10:36:30 2026 write: IOPS=1, BW=4174KiB/s (4274kB/s)(12.0MiB/2944msec); 0 zone resets clat (msec): min=276, max=2059, avg=917.80, stdev=991.44 lat (msec): min=277, max=2062, avg=919.00, stdev=992.68 clat percentiles (msec): | 1.00th=[ 279], 5.00th=[ 279], 10.00th=[ 279], 20.00th=[ 279], | 30.00th=[ 279], 40.00th=[ 418], 50.00th=[ 418], 60.00th=[ 418], | 70.00th=[ 2056], 80.00th=[ 2056], 90.00th=[ 2056], 95.00th=[ 2056], | 99.00th=[ 2056], 99.50th=[ 2056], 99.90th=[ 2056], 99.95th=[ 2056], | 99.99th=[ 2056] bw ( KiB/s): min=16286, max=16286, per=100.00%, avg=16286.00, stdev= 0.00, samples=1 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=1 lat (msec) : 500=66.67%, >=2000=33.33% cpu : usr=0.00%, sys=4.04%, ctx=67, 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=4802KiB/s (4917kB/s), 1309KiB/s-3601KiB/s (1341kB/s-3688kB/s), io=16.0MiB (16.8MB), run=3128-3412msec WRITE: bw=7636KiB/s (7820kB/s), 2619KiB/s-4174KiB/s (2682kB/s-4274kB/s), io=32.0MiB (33.6MB), run=2944-4291msec rand-rw: (groupid=0, jobs=1): err= 0: pid=178875: Wed Aug 26 10:36:30 2026 read: IOPS=0, BW=3044KiB/s (3117kB/s)(12.0MiB/4037msec) clat (msec): min=451, max=1850, avg=1300.56, stdev=746.03 lat (msec): min=451, max=1850, avg=1300.56, stdev=746.03 clat percentiles (msec): | 1.00th=[ 451], 5.00th=[ 451], 10.00th=[ 451], 20.00th=[ 451], | 30.00th=[ 451], 40.00th=[ 1603], 50.00th=[ 1603], 60.00th=[ 1603], | 70.00th=[ 1854], 80.00th=[ 1854], 90.00th=[ 1854], 95.00th=[ 1854], | 99.00th=[ 1854], 99.50th=[ 1854], 99.90th=[ 1854], 99.95th=[ 1854], | 99.99th=[ 1854] bw ( KiB/s): min= 8192, max= 8192, per=100.00%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.05%, sys=2.63%, ctx=54, 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=178876: Wed Aug 26 10:36:30 2026 read: IOPS=0, BW=1074KiB/s (1100kB/s)(4096KiB/3814msec) clat (nsec): min=2043.4M, max=2043.4M, avg=2043377266.00, stdev= 0.00 lat (nsec): min=2043.4M, max=2043.4M, avg=2043379405.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 2039], 5.00th=[ 2039], 10.00th=[ 2039], 20.00th=[ 2039], | 30.00th=[ 2039], 40.00th=[ 2039], 50.00th=[ 2039], 60.00th=[ 2039], | 70.00th=[ 2039], 80.00th=[ 2039], 90.00th=[ 2039], 95.00th=[ 2039], | 99.00th=[ 2039], 99.50th=[ 2039], 99.90th=[ 2039], 99.95th=[ 2039], | 99.99th=[ 2039] 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 write: IOPS=0, BW=2148KiB/s (2199kB/s)(8192KiB/3814msec); 0 zone resets clat (msec): min=325, max=1278, avg=801.92, stdev=674.25 lat (msec): min=325, max=1279, avg=802.48, stdev=674.47 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=[ 1284], | 70.00th=[ 1284], 80.00th=[ 1284], 90.00th=[ 1284], 95.00th=[ 1284], | 99.00th=[ 1284], 99.50th=[ 1284], 99.90th=[ 1284], 99.95th=[ 1284], | 99.99th=[ 1284] bw ( KiB/s): min= 8078, max= 8078, per=94.03%, avg=8078.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=4.41%, ctx=87, 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=178877: Wed Aug 26 10:36:30 2026 write: IOPS=0, BW=3259KiB/s (3337kB/s)(12.0MiB/3771msec); 0 zone resets clat (msec): min=523, max=1707, avg=1210.71, stdev=614.38 lat (msec): min=524, max=1708, avg=1211.11, stdev=614.17 clat percentiles (msec): | 1.00th=[ 523], 5.00th=[ 523], 10.00th=[ 523], 20.00th=[ 523], | 30.00th=[ 523], 40.00th=[ 1401], 50.00th=[ 1401], 60.00th=[ 1401], | 70.00th=[ 1703], 80.00th=[ 1703], 90.00th=[ 1703], 95.00th=[ 1703], | 99.00th=[ 1703], 99.50th=[ 1703], 99.90th=[ 1703], 99.95th=[ 1703], | 99.99th=[ 1703] bw ( KiB/s): min= 8047, max= 8192, per=94.51%, avg=8119.50, stdev=102.53, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 750=33.33%, 2000=66.67% cpu : usr=0.11%, sys=3.93%, ctx=51, 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=178878: Wed Aug 26 10:36:30 2026 write: IOPS=1, BW=4295KiB/s (4398kB/s)(12.0MiB/2861msec); 0 zone resets clat (msec): min=214, max=2124, avg=932.64, stdev=1039.35 lat (msec): min=214, max=2124, avg=933.12, stdev=1039.26 clat percentiles (msec): | 1.00th=[ 215], 5.00th=[ 215], 10.00th=[ 215], 20.00th=[ 215], | 30.00th=[ 215], 40.00th=[ 460], 50.00th=[ 460], 60.00th=[ 460], | 70.00th=[ 2123], 80.00th=[ 2123], 90.00th=[ 2123], 95.00th=[ 2123], | 99.00th=[ 2123], 99.50th=[ 2123], 99.90th=[ 2123], 99.95th=[ 2123], | 99.99th=[ 2123] bw ( KiB/s): min= 7198, max= 8159, per=89.38%, avg=7678.50, stdev=679.53, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 250=33.33%, 500=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=4.30%, ctx=35, 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=4058KiB/s (4156kB/s), 1074KiB/s-3044KiB/s (1100kB/s-3117kB/s), io=16.0MiB (16.8MB), run=3814-4037msec WRITE: bw=8592KiB/s (8798kB/s), 2148KiB/s-4295KiB/s (2199kB/s-4398kB/s), io=32.0MiB (33.6MB), run=2861-3814msec