== sanity test 398b: DIO and buffer IO race ============== 19:13:30 (1787872410) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 6.5454 s, 7.7 MB/s mix direct rw 4096 by fio with 4 jobs... mix buffer rw 4096 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=144746: Thu Aug 27 19:15:49 2026 read: IOPS=12, BW=49.0KiB/s (51.2kB/s)(5992KiB/119844msec) clat (usec): min=46, max=937955, avg=38996.62, stdev=35443.06 lat (usec): min=47, max=937958, avg=38998.44, stdev=35442.69 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 66], 10.00th=[ 11731], 20.00th=[ 19530], | 30.00th=[ 23462], 40.00th=[ 28181], 50.00th=[ 33424], 60.00th=[ 39584], | 70.00th=[ 46924], 80.00th=[ 56361], 90.00th=[ 71828], 95.00th=[ 85459], | 99.00th=[135267], 99.50th=[164627], 99.90th=[263193], 99.95th=[935330], | 99.99th=[935330] bw ( KiB/s): min= 7, max= 111, per=25.20%, avg=50.41, stdev=20.80, samples=232 iops : min= 1, max= 27, avg=11.96, stdev= 5.26, samples=232 write: IOPS=13, BW=52.5KiB/s (53.8kB/s)(6296KiB/119844msec); 0 zone resets clat (usec): min=1035, max=361203, avg=38721.16, stdev=38953.04 lat (usec): min=1036, max=361205, avg=38722.84, stdev=38953.10 clat percentiles (usec): | 1.00th=[ 1123], 5.00th=[ 1254], 10.00th=[ 2040], 20.00th=[ 4293], | 30.00th=[ 9503], 40.00th=[ 19268], 50.00th=[ 29230], 60.00th=[ 39060], | 70.00th=[ 51119], 80.00th=[ 65799], 90.00th=[ 91751], 95.00th=[112722], | 99.00th=[162530], 99.50th=[179307], 99.90th=[299893], 99.95th=[362808], | 99.99th=[362808] bw ( KiB/s): min= 15, max= 143, per=25.22%, avg=52.70, stdev=20.93, samples=233 iops : min= 3, max= 35, avg=12.53, stdev= 5.24, samples=233 lat (usec) : 50=0.29%, 100=3.22%, 250=0.29%, 500=0.03%, 750=0.03% lat (usec) : 1000=0.07% lat (msec) : 2=5.08%, 4=4.82%, 10=6.38%, 20=10.77%, 50=40.56% lat (msec) : 100=23.63%, 250=4.65%, 500=0.13%, 1000=0.03% cpu : usr=0.08%, sys=5.61%, ctx=6674, 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=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=144747: Thu Aug 27 19:15:49 2026 read: IOPS=12, BW=51.8KiB/s (53.1kB/s)(5940KiB/114581msec) clat (usec): min=23, max=242579, avg=36287.12, stdev=24957.26 lat (usec): min=23, max=242580, avg=36291.77, stdev=24957.48 clat percentiles (usec): | 1.00th=[ 50], 5.00th=[ 60], 10.00th=[ 8586], 20.00th=[ 18744], | 30.00th=[ 22938], 40.00th=[ 26870], 50.00th=[ 31851], 60.00th=[ 37487], | 70.00th=[ 44827], 80.00th=[ 53740], 90.00th=[ 67634], 95.00th=[ 79168], | 99.00th=[115868], 99.50th=[141558], 99.90th=[193987], 99.95th=[242222], | 99.99th=[242222] bw ( KiB/s): min= 7, max= 111, per=26.04%, avg=52.08, stdev=21.11, samples=223 iops : min= 1, max= 27, avg=12.37, stdev= 5.31, samples=223 write: IOPS=13, BW=55.4KiB/s (56.7kB/s)(6348KiB/114581msec); 0 zone resets clat (usec): min=979, max=910444, avg=37942.92, stdev=45918.91 lat (usec): min=980, max=910446, avg=37946.78, stdev=45917.14 clat percentiles (usec): | 1.00th=[ 1106], 5.00th=[ 1237], 10.00th=[ 1876], 20.00th=[ 4047], | 30.00th=[ 7177], 40.00th=[ 15270], 50.00th=[ 27657], 60.00th=[ 38011], | 70.00th=[ 50594], 80.00th=[ 65799], 90.00th=[ 86508], 95.00th=[109577], | 99.00th=[164627], 99.50th=[187696], 99.90th=[509608], 99.95th=[910164], | 99.99th=[910164] bw ( KiB/s): min= 7, max= 118, per=26.43%, avg=55.25, stdev=20.43, samples=224 iops : min= 1, max= 29, avg=13.17, stdev= 5.15, samples=224 lat (usec) : 50=0.52%, 100=3.52%, 250=0.23%, 500=0.07%, 750=0.03% lat (usec) : 1000=0.07% lat (msec) : 2=5.66%, 4=4.79%, 10=8.11%, 20=10.25%, 50=39.71% lat (msec) : 100=22.82%, 250=4.10%, 500=0.07%, 750=0.03%, 1000=0.03% cpu : usr=0.07%, sys=5.47%, ctx=6478, majf=0, minf=18 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=144748: Thu Aug 27 19:15:49 2026 read: IOPS=12, BW=50.7KiB/s (51.9kB/s)(6028KiB/118925msec) clat (usec): min=26, max=241285, avg=36040.88, stdev=24899.27 lat (usec): min=26, max=241286, avg=36043.04, stdev=24899.91 clat percentiles (usec): | 1.00th=[ 50], 5.00th=[ 61], 10.00th=[ 10290], 20.00th=[ 17957], | 30.00th=[ 22938], 40.00th=[ 27132], 50.00th=[ 31327], 60.00th=[ 36963], | 70.00th=[ 43779], 80.00th=[ 53216], 90.00th=[ 67634], 95.00th=[ 81265], | 99.00th=[120062], 99.50th=[141558], 99.90th=[196084], 99.95th=[242222], | 99.99th=[242222] bw ( KiB/s): min= 7, max= 125, per=25.35%, avg=50.70, stdev=22.37, samples=232 iops : min= 1, max= 31, avg=12.03, stdev= 5.65, samples=232 write: IOPS=13, BW=52.6KiB/s (53.9kB/s)(6260KiB/118925msec); 0 zone resets clat (usec): min=990, max=1188.3k, avg=40964.83, stdev=50847.63 lat (usec): min=991, max=1188.3k, avg=40967.42, stdev=50847.40 clat percentiles (usec): | 1.00th=[ 1090], 5.00th=[ 1287], 10.00th=[ 1893], | 20.00th=[ 4146], 30.00th=[ 8291], 40.00th=[ 19530], | 50.00th=[ 30278], 60.00th=[ 40633], 70.00th=[ 53740], | 80.00th=[ 69731], 90.00th=[ 92799], 95.00th=[ 115868], | 99.00th=[ 185598], 99.50th=[ 240124], 99.90th=[ 408945], | 99.95th=[1182794], 99.99th=[1182794] bw ( KiB/s): min= 7, max= 96, per=25.20%, avg=52.66, stdev=19.50, samples=232 iops : min= 1, max= 24, avg=12.52, stdev= 4.91, samples=232 lat (usec) : 50=0.52%, 100=3.26%, 250=0.49%, 500=0.03%, 750=0.10% lat (usec) : 1000=0.03% lat (msec) : 2=5.53%, 4=4.26%, 10=6.84%, 20=11.33%, 50=40.27% lat (msec) : 100=22.36%, 250=4.82%, 500=0.13%, 2000=0.03% cpu : usr=0.08%, sys=5.40%, ctx=6597, 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=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=144750: Thu Aug 27 19:15:49 2026 read: IOPS=12, BW=51.6KiB/s (52.9kB/s)(6052KiB/117182msec) clat (usec): min=32, max=989813, avg=38176.44, stdev=36888.50 lat (usec): min=32, max=989814, avg=38177.78, stdev=36888.42 clat percentiles (usec): | 1.00th=[ 51], 5.00th=[ 60], 10.00th=[ 9110], 20.00th=[ 17957], | 30.00th=[ 22938], 40.00th=[ 27395], 50.00th=[ 32637], 60.00th=[ 38536], | 70.00th=[ 46924], 80.00th=[ 54789], 90.00th=[ 68682], 95.00th=[ 84411], | 99.00th=[130548], 99.50th=[175113], 99.90th=[244319], 99.95th=[985662], | 99.99th=[985662] bw ( KiB/s): min= 7, max= 103, per=25.79%, avg=51.59, stdev=19.54, samples=228 iops : min= 1, max= 25, avg=12.26, stdev= 4.91, samples=228 write: IOPS=13, BW=53.2KiB/s (54.5kB/s)(6236KiB/117182msec); 0 zone resets clat (usec): min=1010, max=415031, avg=37786.98, stdev=38424.51 lat (usec): min=1011, max=415033, avg=37789.88, stdev=38424.51 clat percentiles (usec): | 1.00th=[ 1090], 5.00th=[ 1270], 10.00th=[ 1876], 20.00th=[ 4490], | 30.00th=[ 8356], 40.00th=[ 17695], 50.00th=[ 27919], 60.00th=[ 38536], | 70.00th=[ 51119], 80.00th=[ 65274], 90.00th=[ 89654], 95.00th=[109577], | 99.00th=[149947], 99.50th=[175113], 99.90th=[295699], 99.95th=[413139], | 99.99th=[413139] bw ( KiB/s): min= 8, max= 112, per=25.36%, avg=53.00, stdev=20.27, samples=229 iops : min= 2, max= 28, avg=12.60, stdev= 5.08, samples=229 lat (usec) : 50=0.49%, 100=3.81%, 250=0.26%, 500=0.03%, 750=0.03% lat (msec) : 2=5.37%, 4=4.00%, 10=7.45%, 20=11.72%, 50=38.31% lat (msec) : 100=23.60%, 250=4.75%, 500=0.13%, 1000=0.03% cpu : usr=0.07%, sys=5.59%, ctx=6679, majf=0, minf=18 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=200KiB/s (205kB/s), 49.0KiB/s-51.8KiB/s (51.2kB/s-53.1kB/s), io=23.4MiB (24.6MB), run=114581-119844msec WRITE: bw=210KiB/s (215kB/s), 52.5KiB/s-55.4KiB/s (53.8kB/s-56.7kB/s), io=24.6MiB (25.7MB), run=114581-119844msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144751: Thu Aug 27 19:18:12 2026 read: IOPS=5, BW=22.9KiB/s (23.4kB/s)(5992KiB/262089msec) clat (msec): min=5, max=935, avg=35.85, stdev=42.51 lat (msec): min=5, max=935, avg=35.85, stdev=42.51 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 25], 60.00th=[ 30], | 70.00th=[ 38], 80.00th=[ 48], 90.00th=[ 70], 95.00th=[ 92], | 99.00th=[ 192], 99.50th=[ 236], 99.90th=[ 510], 99.95th=[ 936], | 99.99th=[ 936] bw ( KiB/s): min= 7, max= 87, per=27.73%, avg=25.23, stdev=16.47, samples=460 iops : min= 1, max= 21, avg= 5.70, stdev= 4.13, samples=460 write: IOPS=6, BW=24.0KiB/s (24.6kB/s)(6296KiB/262089msec); 0 zone resets clat (msec): min=28, max=590, avg=132.13, stdev=61.24 lat (msec): min=28, max=590, avg=132.13, stdev=61.24 clat percentiles (msec): | 1.00th=[ 44], 5.00th=[ 62], 10.00th=[ 70], 20.00th=[ 84], | 30.00th=[ 95], 40.00th=[ 107], 50.00th=[ 121], 60.00th=[ 133], | 70.00th=[ 153], 80.00th=[ 176], 90.00th=[ 209], 95.00th=[ 243], | 99.00th=[ 334], 99.50th=[ 384], 99.90th=[ 531], 99.95th=[ 592], | 99.99th=[ 592] bw ( KiB/s): min= 7, max= 72, per=25.11%, avg=23.85, stdev=10.37, samples=510 iops : min= 1, max= 18, avg= 5.35, stdev= 2.65, samples=510 lat (msec) : 10=2.38%, 20=16.70%, 50=21.78%, 100=23.96%, 250=32.88% lat (msec) : 500=2.18%, 750=0.10%, 1000=0.03% cpu : usr=0.04%, sys=1.25%, ctx=5417, 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=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=144752: Thu Aug 27 19:18:12 2026 read: IOPS=5, BW=22.6KiB/s (23.2kB/s)(5940KiB/262456msec) clat (msec): min=5, max=975, avg=34.29, stdev=40.34 lat (msec): min=5, max=975, avg=34.29, stdev=40.34 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 24], 60.00th=[ 30], | 70.00th=[ 36], 80.00th=[ 46], 90.00th=[ 68], 95.00th=[ 89], | 99.00th=[ 165], 99.50th=[ 226], 99.90th=[ 456], 99.95th=[ 978], | 99.99th=[ 978] bw ( KiB/s): min= 7, max= 88, per=27.73%, avg=25.24, stdev=16.22, samples=455 iops : min= 1, max= 22, avg= 5.71, stdev= 4.11, samples=455 write: IOPS=6, BW=24.2KiB/s (24.8kB/s)(6348KiB/262456msec); 0 zone resets clat (msec): min=28, max=518, avg=133.04, stdev=60.71 lat (msec): min=28, max=518, avg=133.04, stdev=60.71 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 61], 10.00th=[ 71], 20.00th=[ 84], | 30.00th=[ 95], 40.00th=[ 107], 50.00th=[ 120], 60.00th=[ 134], | 70.00th=[ 153], 80.00th=[ 178], 90.00th=[ 215], 95.00th=[ 247], | 99.00th=[ 321], 99.50th=[ 388], 99.90th=[ 456], 99.95th=[ 518], | 99.99th=[ 518] bw ( KiB/s): min= 7, max= 56, per=24.87%, avg=23.63, stdev=10.22, samples=517 iops : min= 1, max= 14, avg= 5.30, stdev= 2.59, samples=517 lat (msec) : 10=3.74%, 20=15.27%, 50=21.94%, 100=23.60%, 250=32.85% lat (msec) : 500=2.54%, 750=0.03%, 1000=0.03% cpu : usr=0.04%, sys=1.21%, ctx=5447, 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=144753: Thu Aug 27 19:18:12 2026 read: IOPS=5, BW=23.0KiB/s (23.6kB/s)(6028KiB/261771msec) clat (msec): min=5, max=525, avg=36.04, stdev=38.80 lat (msec): min=5, max=525, avg=36.04, stdev=38.80 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 26], 60.00th=[ 31], | 70.00th=[ 37], 80.00th=[ 48], 90.00th=[ 72], 95.00th=[ 96], | 99.00th=[ 180], 99.50th=[ 259], 99.90th=[ 518], 99.95th=[ 527], | 99.99th=[ 527] bw ( KiB/s): min= 7, max= 118, per=27.67%, avg=25.18, stdev=16.18, samples=463 iops : min= 1, max= 29, avg= 5.69, stdev= 4.09, samples=463 write: IOPS=5, BW=23.9KiB/s (24.5kB/s)(6260KiB/261771msec); 0 zone resets clat (msec): min=35, max=1187, avg=132.30, stdev=65.04 lat (msec): min=35, max=1187, avg=132.31, stdev=65.05 clat percentiles (msec): | 1.00th=[ 46], 5.00th=[ 62], 10.00th=[ 70], 20.00th=[ 83], | 30.00th=[ 94], 40.00th=[ 105], 50.00th=[ 117], 60.00th=[ 133], | 70.00th=[ 153], 80.00th=[ 180], 90.00th=[ 213], 95.00th=[ 249], | 99.00th=[ 317], 99.50th=[ 355], 99.90th=[ 502], 99.95th=[ 1183], | 99.99th=[ 1183] bw ( KiB/s): min= 7, max= 64, per=24.88%, avg=23.64, stdev=10.61, samples=511 iops : min= 1, max= 16, avg= 5.30, stdev= 2.69, samples=511 lat (msec) : 10=2.80%, 20=16.21%, 50=21.52%, 100=24.64%, 250=32.06% lat (msec) : 500=2.64%, 750=0.10%, 2000=0.03% cpu : usr=0.04%, sys=1.22%, ctx=5338, 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=144754: Thu Aug 27 19:18:12 2026 read: IOPS=5, BW=23.1KiB/s (23.6kB/s)(6052KiB/262098msec) clat (msec): min=5, max=455, avg=34.99, stdev=35.26 lat (msec): min=5, max=455, avg=34.99, stdev=35.25 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=[ 36], 80.00th=[ 46], 90.00th=[ 70], 95.00th=[ 94], | 99.00th=[ 192], 99.50th=[ 234], 99.90th=[ 334], 99.95th=[ 456], | 99.99th=[ 456] bw ( KiB/s): min= 7, max= 80, per=28.26%, avg=25.71, stdev=16.39, samples=456 iops : min= 1, max= 20, avg= 5.82, stdev= 4.15, samples=456 write: IOPS=5, BW=23.8KiB/s (24.4kB/s)(6236KiB/262098msec); 0 zone resets clat (msec): min=35, max=1105, avg=133.91, stdev=68.48 lat (msec): min=35, max=1105, avg=133.91, stdev=68.48 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 61], 10.00th=[ 68], 20.00th=[ 84], | 30.00th=[ 94], 40.00th=[ 107], 50.00th=[ 120], 60.00th=[ 136], | 70.00th=[ 155], 80.00th=[ 178], 90.00th=[ 213], 95.00th=[ 253], | 99.00th=[ 355], 99.50th=[ 418], 99.90th=[ 592], 99.95th=[ 1099], | 99.99th=[ 1099] bw ( KiB/s): min= 7, max= 56, per=24.61%, avg=23.38, stdev=10.61, samples=515 iops : min= 1, max= 14, avg= 5.23, stdev= 2.69, samples=515 lat (msec) : 10=2.86%, 20=16.41%, 50=22.04%, 100=23.63%, 250=32.13% lat (msec) : 500=2.77%, 750=0.13%, 2000=0.03% cpu : usr=0.04%, sys=1.24%, ctx=5401, 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=91.5KiB/s (93.7kB/s), 22.6KiB/s-23.1KiB/s (23.2kB/s-23.6kB/s), io=23.4MiB (24.6MB), run=261771-262456msec WRITE: bw=95.8KiB/s (98.1kB/s), 23.8KiB/s-24.2KiB/s (24.4kB/s-24.8kB/s), io=24.6MiB (25.7MB), run=261771-262456msec 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=144810: Thu Aug 27 19:18:42 2026 read: IOPS=17, BW=278KiB/s (285kB/s)(5920KiB/21274msec) clat (usec): min=38, max=107912, avg=27977.75, stdev=21828.86 lat (usec): min=38, max=107913, avg=27978.84, stdev=21828.87 clat percentiles (usec): | 1.00th=[ 44], 5.00th=[ 52], 10.00th=[ 61], 20.00th=[ 326], | 30.00th=[ 17957], 40.00th=[ 21890], 50.00th=[ 25297], 60.00th=[ 30016], | 70.00th=[ 35914], 80.00th=[ 42730], 90.00th=[ 58459], 95.00th=[ 70779], | 99.00th=[ 85459], 99.50th=[102237], 99.90th=[107480], 99.95th=[107480], | 99.99th=[107480] bw ( KiB/s): min= 157, max= 510, per=25.32%, avg=282.62, stdev=94.35, samples=40 iops : min= 9, max= 31, avg=16.90, stdev= 5.88, samples=40 write: IOPS=18, BW=299KiB/s (307kB/s)(6368KiB/21274msec); 0 zone resets clat (usec): min=1424, max=266309, avg=26778.19, stdev=29743.41 lat (usec): min=1425, max=266312, avg=26793.44, stdev=29733.41 clat percentiles (usec): | 1.00th=[ 1467], 5.00th=[ 2008], 10.00th=[ 2933], 20.00th=[ 4883], | 30.00th=[ 6783], 40.00th=[ 10421], 50.00th=[ 18220], 60.00th=[ 25297], | 70.00th=[ 33162], 80.00th=[ 43779], 90.00th=[ 63177], 95.00th=[ 74974], | 99.00th=[145753], 99.50th=[214959], 99.90th=[265290], 99.95th=[265290], | 99.99th=[265290] bw ( KiB/s): min= 158, max= 574, per=25.57%, avg=300.44, stdev=102.92, samples=41 iops : min= 9, max= 35, avg=18.02, stdev= 6.44, samples=41 lat (usec) : 50=1.43%, 100=7.29%, 250=0.78%, 500=0.26%, 1000=0.13% lat (msec) : 2=2.99%, 4=5.21%, 10=12.24%, 20=13.28%, 50=40.10% lat (msec) : 100=14.97%, 250=1.17%, 500=0.13% cpu : usr=0.09%, sys=8.17%, ctx=1540, 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=144811: Thu Aug 27 19:18:42 2026 read: IOPS=16, BW=268KiB/s (274kB/s)(5744KiB/21446msec) clat (usec): min=35, max=124729, avg=29655.91, stdev=21947.73 lat (usec): min=35, max=124730, avg=29657.02, stdev=21947.71 clat percentiles (usec): | 1.00th=[ 43], 5.00th=[ 55], 10.00th=[ 64], 20.00th=[ 1221], | 30.00th=[ 18482], 40.00th=[ 22676], 50.00th=[ 26870], 60.00th=[ 33817], | 70.00th=[ 41157], 80.00th=[ 48497], 90.00th=[ 57934], 95.00th=[ 65799], | 99.00th=[ 96994], 99.50th=[103285], 99.90th=[124257], 99.95th=[124257], | 99.99th=[124257] bw ( KiB/s): min= 127, max= 383, per=24.13%, avg=269.33, stdev=68.94, samples=42 iops : min= 7, max= 23, avg=16.05, stdev= 4.32, samples=42 write: IOPS=19, BW=305KiB/s (312kB/s)(6544KiB/21446msec); 0 zone resets clat (usec): min=1379, max=193800, avg=26121.96, stdev=29034.75 lat (usec): min=1381, max=193880, avg=26124.56, stdev=29035.97 clat percentiles (usec): | 1.00th=[ 1483], 5.00th=[ 1795], 10.00th=[ 2540], 20.00th=[ 4113], | 30.00th=[ 6128], 40.00th=[ 9634], 50.00th=[ 15008], 60.00th=[ 23462], | 70.00th=[ 33424], 80.00th=[ 45876], 90.00th=[ 61080], 95.00th=[ 79168], | 99.00th=[116917], 99.50th=[170918], 99.90th=[193987], 99.95th=[193987], | 99.99th=[193987] bw ( KiB/s): min= 127, max= 603, per=25.94%, avg=304.76, stdev=96.36, samples=42 iops : min= 7, max= 37, avg=18.31, stdev= 6.04, samples=42 lat (usec) : 50=0.91%, 100=6.64%, 250=1.17%, 500=0.26%, 1000=0.26% lat (msec) : 2=3.91%, 4=6.51%, 10=11.98%, 20=12.89%, 50=37.76% lat (msec) : 100=15.63%, 250=2.08% cpu : usr=0.08%, sys=8.00%, ctx=1516, 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=144813: Thu Aug 27 19:18:42 2026 read: IOPS=19, BW=307KiB/s (314kB/s)(6256KiB/20388msec) clat (usec): min=35, max=103443, avg=27766.44, stdev=20431.07 lat (usec): min=35, max=103445, avg=27767.63, stdev=20431.11 clat percentiles (usec): | 1.00th=[ 42], 5.00th=[ 55], 10.00th=[ 63], 20.00th=[ 1467], | 30.00th=[ 18220], 40.00th=[ 22152], 50.00th=[ 26346], 60.00th=[ 30802], | 70.00th=[ 38011], 80.00th=[ 43779], 90.00th=[ 53216], 95.00th=[ 63177], | 99.00th=[ 87557], 99.50th=[ 90702], 99.90th=[103285], 99.95th=[103285], | 99.99th=[103285] bw ( KiB/s): min= 110, max= 539, per=28.03%, avg=312.77, stdev=91.96, samples=39 iops : min= 6, max= 33, avg=18.79, stdev= 5.78, samples=39 write: IOPS=18, BW=296KiB/s (303kB/s)(6032KiB/20388msec); 0 zone resets clat (usec): min=1563, max=207436, avg=24465.19, stdev=27790.72 lat (usec): min=1565, max=207437, avg=24467.18, stdev=27790.63 clat percentiles (usec): | 1.00th=[ 1680], 5.00th=[ 2024], 10.00th=[ 2737], 20.00th=[ 3884], | 30.00th=[ 5735], 40.00th=[ 8586], 50.00th=[ 14484], 60.00th=[ 22414], | 70.00th=[ 29492], 80.00th=[ 40109], 90.00th=[ 60556], 95.00th=[ 77071], | 99.00th=[145753], 99.50th=[164627], 99.90th=[206570], 99.95th=[206570], | 99.99th=[206570] bw ( KiB/s): min= 95, max= 505, per=25.30%, avg=297.26, stdev=109.25, samples=39 iops : min= 5, max= 31, avg=17.82, stdev= 6.82, samples=39 lat (usec) : 50=0.91%, 100=7.16%, 250=1.30%, 500=0.52%, 750=0.13% lat (usec) : 1000=0.13% lat (msec) : 2=2.60%, 4=8.20%, 10=11.07%, 20=13.28%, 50=41.02% lat (msec) : 100=12.50%, 250=1.17% cpu : usr=0.07%, sys=8.29%, ctx=1483, 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=144815: Thu Aug 27 19:18:42 2026 read: IOPS=18, BW=290KiB/s (297kB/s)(6032KiB/20816msec) clat (usec): min=31, max=165865, avg=28058.80, stdev=23732.51 lat (usec): min=31, max=165867, avg=28059.85, stdev=23732.53 clat percentiles (usec): | 1.00th=[ 38], 5.00th=[ 53], 10.00th=[ 60], 20.00th=[ 95], | 30.00th=[ 15270], 40.00th=[ 21365], 50.00th=[ 26346], 60.00th=[ 32900], | 70.00th=[ 38011], 80.00th=[ 44827], 90.00th=[ 57410], 95.00th=[ 64750], | 99.00th=[110625], 99.50th=[120062], 99.90th=[166724], 99.95th=[166724], | 99.99th=[166724] bw ( KiB/s): min= 86, max= 574, per=25.75%, avg=287.38, stdev=100.49, samples=40 iops : min= 5, max= 35, avg=17.20, stdev= 6.31, samples=40 write: IOPS=18, BW=301KiB/s (308kB/s)(6256KiB/20816msec); 0 zone resets clat (usec): min=1389, max=275494, avg=25625.88, stdev=31393.87 lat (usec): min=1390, max=275494, avg=25634.29, stdev=31389.17 clat percentiles (usec): | 1.00th=[ 1434], 5.00th=[ 1778], 10.00th=[ 2245], 20.00th=[ 3949], | 30.00th=[ 5866], 40.00th=[ 8094], 50.00th=[ 12518], 60.00th=[ 22414], | 70.00th=[ 31851], 80.00th=[ 43779], 90.00th=[ 62653], 95.00th=[ 80217], | 99.00th=[152044], 99.50th=[235930], 99.90th=[274727], 99.95th=[274727], | 99.99th=[274727] bw ( KiB/s): min= 125, max= 605, per=25.55%, avg=300.25, stdev=118.46, samples=40 iops : min= 7, max= 37, avg=18.02, stdev= 7.45, samples=40 lat (usec) : 50=1.95%, 100=8.07%, 250=1.30%, 500=0.52%, 750=0.26% lat (msec) : 2=4.17%, 4=6.25%, 10=13.54%, 20=10.29%, 50=38.93% lat (msec) : 100=12.76%, 250=1.82%, 500=0.13% cpu : usr=0.08%, sys=8.05%, ctx=1486, 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=1117KiB/s (1144kB/s), 268KiB/s-307KiB/s (274kB/s-314kB/s), io=23.4MiB (24.5MB), run=20388-21446msec WRITE: bw=1175KiB/s (1203kB/s), 296KiB/s-305KiB/s (303kB/s-312kB/s), io=24.6MiB (25.8MB), run=20388-21446msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144812: Thu Aug 27 19:19:20 2026 read: IOPS=6, BW=102KiB/s (104kB/s)(5920KiB/58192msec) clat (msec): min=6, max=270, avg=31.13, stdev=32.04 lat (msec): min=6, max=270, avg=31.13, stdev=32.04 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 18], 50.00th=[ 21], 60.00th=[ 24], | 70.00th=[ 30], 80.00th=[ 39], 90.00th=[ 63], 95.00th=[ 105], | 99.00th=[ 153], 99.50th=[ 199], 99.90th=[ 271], 99.95th=[ 271], | 99.99th=[ 271] bw ( KiB/s): min= 31, max= 473, per=27.08%, avg=110.20, stdev=72.91, samples=106 iops : min= 1, max= 29, avg= 6.22, stdev= 4.62, samples=106 write: IOPS=6, BW=109KiB/s (112kB/s)(6368KiB/58192msec); 0 zone resets clat (msec): min=38, max=323, avg=116.68, stdev=44.69 lat (msec): min=38, max=323, avg=116.69, stdev=44.69 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 61], 10.00th=[ 68], 20.00th=[ 80], | 30.00th=[ 88], 40.00th=[ 100], 50.00th=[ 108], 60.00th=[ 121], | 70.00th=[ 136], 80.00th=[ 153], 90.00th=[ 176], 95.00th=[ 190], | 99.00th=[ 279], 99.50th=[ 321], 99.90th=[ 326], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 21, max= 192, per=25.51%, avg=109.42, stdev=42.46, samples=115 iops : min= 1, max= 12, avg= 6.15, stdev= 2.77, samples=115 lat (msec) : 10=3.26%, 20=20.57%, 50=18.49%, 100=25.00%, 250=31.90% lat (msec) : 500=0.78% cpu : usr=0.02%, sys=1.37%, ctx=1343, 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=144814: Thu Aug 27 19:19:20 2026 read: IOPS=6, BW=97.8KiB/s (100kB/s)(5744KiB/58723msec) clat (msec): min=5, max=168, avg=28.85, stdev=25.73 lat (msec): min=5, max=168, avg=28.85, stdev=25.73 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 18], 50.00th=[ 21], 60.00th=[ 24], | 70.00th=[ 29], 80.00th=[ 37], 90.00th=[ 57], 95.00th=[ 77], | 99.00th=[ 146], 99.50th=[ 159], 99.90th=[ 169], 99.95th=[ 169], | 99.99th=[ 169] bw ( KiB/s): min= 21, max= 346, per=26.98%, avg=109.81, stdev=69.78, samples=103 iops : min= 1, max= 21, avg= 6.17, stdev= 4.42, samples=103 write: IOPS=6, BW=111KiB/s (114kB/s)(6544KiB/58723msec); 0 zone resets clat (msec): min=36, max=404, avg=117.63, stdev=46.84 lat (msec): min=36, max=404, avg=117.64, stdev=46.84 clat percentiles (msec): | 1.00th=[ 46], 5.00th=[ 57], 10.00th=[ 66], 20.00th=[ 81], | 30.00th=[ 89], 40.00th=[ 99], 50.00th=[ 110], 60.00th=[ 124], | 70.00th=[ 138], 80.00th=[ 153], 90.00th=[ 176], 95.00th=[ 205], | 99.00th=[ 251], 99.50th=[ 300], 99.90th=[ 405], 99.95th=[ 405], | 99.99th=[ 405] bw ( KiB/s): min= 31, max= 223, per=26.14%, avg=112.12, stdev=43.16, samples=115 iops : min= 1, max= 13, avg= 6.31, stdev= 2.80, samples=115 lat (msec) : 10=2.99%, 20=19.66%, 50=19.92%, 100=25.13%, 250=31.77% lat (msec) : 500=0.52% cpu : usr=0.05%, sys=1.50%, ctx=1299, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144816: Thu Aug 27 19:19:20 2026 read: IOPS=6, BW=111KiB/s (114kB/s)(6256KiB/56164msec) clat (msec): min=7, max=271, avg=28.44, stdev=26.29 lat (msec): min=7, max=271, avg=28.45, stdev=26.29 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 19], 50.00th=[ 21], 60.00th=[ 24], | 70.00th=[ 28], 80.00th=[ 37], 90.00th=[ 53], 95.00th=[ 71], | 99.00th=[ 123], 99.50th=[ 207], 99.90th=[ 271], 99.95th=[ 271], | 99.99th=[ 271] bw ( KiB/s): min= 31, max= 319, per=28.72%, avg=116.88, stdev=75.21, samples=106 iops : min= 1, max= 19, avg= 6.61, stdev= 4.75, samples=106 write: IOPS=6, BW=107KiB/s (110kB/s)(6032KiB/56164msec); 0 zone resets clat (msec): min=37, max=368, avg=119.33, stdev=50.96 lat (msec): min=37, max=368, avg=119.34, stdev=50.97 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 63], 10.00th=[ 68], 20.00th=[ 80], | 30.00th=[ 89], 40.00th=[ 99], 50.00th=[ 107], 60.00th=[ 120], | 70.00th=[ 133], 80.00th=[ 155], 90.00th=[ 188], 95.00th=[ 224], | 99.00th=[ 309], 99.50th=[ 309], 99.90th=[ 368], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 31, max= 224, per=24.91%, avg=106.87, stdev=40.00, samples=111 iops : min= 1, max= 14, avg= 6.00, stdev= 2.63, samples=111 lat (msec) : 10=1.56%, 20=21.61%, 50=22.92%, 100=24.48%, 250=28.13% lat (msec) : 500=1.30% cpu : usr=0.04%, sys=1.47%, ctx=1356, 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=144817: Thu Aug 27 19:19:20 2026 read: IOPS=6, BW=104KiB/s (106kB/s)(6032KiB/58225msec) clat (msec): min=6, max=288, avg=30.93, stdev=33.19 lat (msec): min=6, max=288, avg=30.93, stdev=33.19 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 18], 50.00th=[ 21], 60.00th=[ 24], | 70.00th=[ 28], 80.00th=[ 37], 90.00th=[ 62], 95.00th=[ 103], | 99.00th=[ 194], 99.50th=[ 226], 99.90th=[ 288], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 31, max= 320, per=26.93%, avg=109.59, stdev=70.08, samples=108 iops : min= 1, max= 20, avg= 6.16, stdev= 4.45, samples=108 write: IOPS=6, BW=107KiB/s (110kB/s)(6256KiB/58225msec); 0 zone resets clat (msec): min=36, max=301, avg=118.43, stdev=45.49 lat (msec): min=36, max=301, avg=118.44, stdev=45.49 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 63], 10.00th=[ 69], 20.00th=[ 81], | 30.00th=[ 91], 40.00th=[ 100], 50.00th=[ 111], 60.00th=[ 122], | 70.00th=[ 132], 80.00th=[ 150], 90.00th=[ 186], 95.00th=[ 205], | 99.00th=[ 271], 99.50th=[ 292], 99.90th=[ 300], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 21, max= 192, per=24.98%, avg=107.17, stdev=40.09, samples=115 iops : min= 1, max= 12, avg= 6.01, stdev= 2.63, samples=115 lat (msec) : 10=3.52%, 20=20.57%, 50=19.01%, 100=24.09%, 250=31.64% lat (msec) : 500=1.17% cpu : usr=0.05%, sys=1.43%, ctx=1317, 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=408KiB/s (418kB/s), 97.8KiB/s-111KiB/s (100kB/s-114kB/s), io=23.4MiB (24.5MB), run=56164-58723msec WRITE: bw=429KiB/s (439kB/s), 107KiB/s-111KiB/s (110kB/s-114kB/s), io=24.6MiB (25.8MB), run=56164-58723msec 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=144837: Thu Aug 27 19:19:34 2026 read: IOPS=1, BW=1804KiB/s (1847kB/s)(7168KiB/3974msec) clat (usec): min=508, max=435092, avg=158277.03, stdev=183948.72 lat (usec): min=509, max=435093, avg=158278.38, stdev=183948.81 clat percentiles (usec): | 1.00th=[ 510], 5.00th=[ 510], 10.00th=[ 510], 20.00th=[ 545], | 30.00th=[ 766], 40.00th=[ 766], 50.00th=[ 63177], 60.00th=[291505], | 70.00th=[291505], 80.00th=[316670], 90.00th=[434111], 95.00th=[434111], | 99.00th=[434111], 99.50th=[434111], 99.90th=[434111], 99.95th=[434111], | 99.99th=[434111] bw ( KiB/s): min= 2039, max= 3968, per=73.58%, avg=2970.33, stdev=966.21, samples=3 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=3 write: IOPS=1, BW=1288KiB/s (1319kB/s)(5120KiB/3974msec); 0 zone resets clat (msec): min=160, max=858, avg=496.17, stdev=341.53 lat (msec): min=160, max=858, avg=496.26, stdev=341.54 clat percentiles (msec): | 1.00th=[ 161], 5.00th=[ 161], 10.00th=[ 161], 20.00th=[ 161], | 30.00th=[ 192], 40.00th=[ 192], 50.00th=[ 422], 60.00th=[ 422], | 70.00th=[ 852], 80.00th=[ 852], 90.00th=[ 860], 95.00th=[ 860], | 99.00th=[ 860], 99.50th=[ 860], 99.90th=[ 860], 99.95th=[ 860], | 99.99th=[ 860] bw ( KiB/s): min= 1984, max= 2048, per=35.81%, avg=2023.67, stdev=34.65, samples=3 iops : min= 1, max= 2, avg= 1.33, stdev= 0.58, samples=3 lat (usec) : 750=16.67%, 1000=8.33% lat (msec) : 100=8.33%, 250=16.67%, 500=33.33%, 1000=16.67% cpu : usr=0.03%, sys=12.01%, ctx=218, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144838: Thu Aug 27 19:19:34 2026 read: IOPS=0, BW=404KiB/s (413kB/s)(2048KiB/5073msec) clat (usec): min=1006, max=292644, avg=146825.52, stdev=206219.27 lat (usec): min=1007, max=292646, avg=146827.21, stdev=206219.96 clat percentiles (usec): | 1.00th=[ 1004], 5.00th=[ 1004], 10.00th=[ 1004], 20.00th=[ 1004], | 30.00th=[ 1004], 40.00th=[ 1004], 50.00th=[ 1004], 60.00th=[291505], | 70.00th=[291505], 80.00th=[291505], 90.00th=[291505], 95.00th=[291505], | 99.00th=[291505], 99.50th=[291505], 99.90th=[291505], 99.95th=[291505], | 99.99th=[291505] bw ( KiB/s): min= 1460, max= 2035, per=43.29%, avg=1747.50, stdev=406.59, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=2019KiB/s (2067kB/s)(10.0MiB/5073msec); 0 zone resets clat (msec): min=107, max=839, avg=453.01, stdev=212.70 lat (msec): min=107, max=839, avg=453.13, stdev=212.70 clat percentiles (msec): | 1.00th=[ 108], 5.00th=[ 108], 10.00th=[ 108], 20.00th=[ 201], | 30.00th=[ 326], 40.00th=[ 414], 50.00th=[ 439], 60.00th=[ 460], | 70.00th=[ 527], 80.00th=[ 575], 90.00th=[ 642], 95.00th=[ 844], | 99.00th=[ 844], 99.50th=[ 844], 99.90th=[ 844], 99.95th=[ 844], | 99.99th=[ 844] bw ( KiB/s): min= 1984, max= 2048, per=35.94%, avg=2030.71, stdev=21.61, samples=7 iops : min= 1, max= 2, avg= 1.14, stdev= 0.38, samples=7 lat (msec) : 2=8.33%, 250=16.67%, 500=41.67%, 750=25.00%, 1000=8.33% cpu : usr=0.02%, sys=12.46%, ctx=193, 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=144839: Thu Aug 27 19:19:34 2026 read: IOPS=1, BW=1455KiB/s (1490kB/s)(6144KiB/4223msec) clat (usec): min=458, max=365567, avg=159716.27, stdev=145470.64 lat (usec): min=459, max=365568, avg=159717.48, stdev=145470.54 clat percentiles (usec): | 1.00th=[ 457], 5.00th=[ 457], 10.00th=[ 457], 20.00th=[ 1319], | 30.00th=[ 1319], 40.00th=[121111], 50.00th=[121111], 60.00th=[223347], | 70.00th=[246416], 80.00th=[246416], 90.00th=[367002], 95.00th=[367002], | 99.00th=[367002], 99.50th=[367002], 99.90th=[367002], 99.95th=[367002], | 99.99th=[367002] bw ( KiB/s): min= 2039, max= 4071, per=63.17%, avg=2550.25, stdev=1013.84, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 write: IOPS=1, BW=1455KiB/s (1490kB/s)(6144KiB/4223msec); 0 zone resets clat (msec): min=205, max=902, avg=509.17, stdev=267.52 lat (msec): min=208, max=902, avg=509.77, stdev=266.85 clat percentiles (msec): | 1.00th=[ 207], 5.00th=[ 207], 10.00th=[ 207], 20.00th=[ 245], | 30.00th=[ 245], 40.00th=[ 426], 50.00th=[ 426], 60.00th=[ 634], | 70.00th=[ 642], 80.00th=[ 642], 90.00th=[ 902], 95.00th=[ 902], | 99.00th=[ 902], 99.50th=[ 902], 99.90th=[ 902], 99.95th=[ 902], | 99.99th=[ 902] bw ( KiB/s): min= 1984, max= 2976, per=39.98%, avg=2259.50, stdev=478.37, samples=4 iops : min= 1, max= 2, avg= 1.25, stdev= 0.50, samples=4 lat (usec) : 500=8.33% lat (msec) : 2=8.33%, 250=41.67%, 500=16.67%, 750=16.67%, 1000=8.33% cpu : usr=0.00%, sys=10.92%, ctx=188, 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=144840: Thu Aug 27 19:19:34 2026 read: IOPS=1, BW=1342KiB/s (1374kB/s)(5120KiB/3815msec) clat (usec): min=467, max=282486, avg=148816.90, stdev=131343.95 lat (usec): min=468, max=282487, avg=148818.00, stdev=131343.84 clat percentiles (usec): | 1.00th=[ 469], 5.00th=[ 469], 10.00th=[ 469], 20.00th=[ 469], | 30.00th=[ 22152], 40.00th=[ 22152], 50.00th=[179307], 60.00th=[179307], | 70.00th=[258999], 80.00th=[258999], 90.00th=[283116], 95.00th=[283116], | 99.00th=[283116], 99.50th=[283116], 99.90th=[283116], 99.95th=[283116], | 99.99th=[283116] bw ( KiB/s): min= 2048, max= 5953, per=99.10%, avg=4000.50, stdev=2761.25, samples=2 iops : min= 2, max= 5, avg= 3.50, stdev= 2.12, samples=2 write: IOPS=1, BW=1879KiB/s (1924kB/s)(7168KiB/3815msec); 0 zone resets clat (msec): min=240, max=835, avg=417.43, stdev=204.56 lat (msec): min=241, max=837, avg=417.84, stdev=205.36 clat percentiles (msec): | 1.00th=[ 241], 5.00th=[ 241], 10.00th=[ 241], 20.00th=[ 275], | 30.00th=[ 292], 40.00th=[ 292], 50.00th=[ 355], 60.00th=[ 430], | 70.00th=[ 430], 80.00th=[ 493], 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= 1984, max= 2917, per=38.52%, avg=2177.00, stdev=363.25, samples=6 iops : min= 1, max= 2, avg= 1.33, stdev= 0.52, samples=6 lat (usec) : 500=8.33% lat (msec) : 50=8.33%, 250=16.67%, 500=58.33%, 1000=8.33% cpu : usr=0.00%, sys=17.49%, ctx=269, 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=4037KiB/s (4134kB/s), 404KiB/s-1804KiB/s (413kB/s-1847kB/s), io=20.0MiB (20.0MB), run=3815-5073msec WRITE: bw=5652KiB/s (5788kB/s), 1288KiB/s-2019KiB/s (1319kB/s-2067kB/s), io=28.0MiB (29.4MB), run=3815-5073msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144833: Thu Aug 27 19:19:34 2026 read: IOPS=1, BW=1913KiB/s (1959kB/s)(7168KiB/3747msec) clat (msec): min=90, max=579, avg=256.59, stdev=182.56 lat (msec): min=90, max=579, avg=256.59, stdev=182.56 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 91], 10.00th=[ 91], 20.00th=[ 101], | 30.00th=[ 167], 40.00th=[ 167], 50.00th=[ 197], 60.00th=[ 232], | 70.00th=[ 232], 80.00th=[ 435], 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= 1924, max= 4168, per=62.52%, avg=2533.50, stdev=1090.63, samples=4 iops : min= 1, max= 4, avg= 1.75, stdev= 1.50, samples=4 write: IOPS=1, BW=1366KiB/s (1399kB/s)(5120KiB/3747msec); 0 zone resets clat (msec): min=279, max=444, avg=367.92, stdev=70.30 lat (msec): min=279, max=444, avg=368.09, stdev=70.40 clat percentiles (msec): | 1.00th=[ 279], 5.00th=[ 279], 10.00th=[ 279], 20.00th=[ 279], | 30.00th=[ 334], 40.00th=[ 334], 50.00th=[ 347], 60.00th=[ 347], | 70.00th=[ 435], 80.00th=[ 435], 90.00th=[ 447], 95.00th=[ 447], | 99.00th=[ 447], 99.50th=[ 447], 99.90th=[ 447], 99.95th=[ 447], | 99.99th=[ 447] bw ( KiB/s): min= 2019, max= 4087, per=47.88%, avg=2716.33, stdev=1187.09, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 100=16.67%, 250=25.00%, 500=50.00%, 750=8.33% cpu : usr=0.00%, sys=5.42%, ctx=177, 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=144834: Thu Aug 27 19:19:34 2026 read: IOPS=0, BW=405KiB/s (415kB/s)(2048KiB/5054msec) clat (msec): min=86, max=162, avg=124.51, stdev=54.14 lat (msec): min=86, max=162, avg=124.51, stdev=54.14 clat percentiles (msec): | 1.00th=[ 87], 5.00th=[ 87], 10.00th=[ 87], 20.00th=[ 87], | 30.00th=[ 87], 40.00th=[ 87], 50.00th=[ 87], 60.00th=[ 163], | 70.00th=[ 163], 80.00th=[ 163], 90.00th=[ 163], 95.00th=[ 163], | 99.00th=[ 163], 99.50th=[ 163], 99.90th=[ 163], 99.95th=[ 163], | 99.99th=[ 163] bw ( KiB/s): min= 1374, max= 2043, per=42.16%, avg=1708.50, stdev=473.05, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=2026KiB/s (2075kB/s)(10.0MiB/5054msec); 0 zone resets clat (msec): min=155, max=847, avg=466.04, stdev=263.56 lat (msec): min=155, max=847, avg=466.17, stdev=263.50 clat percentiles (msec): | 1.00th=[ 157], 5.00th=[ 157], 10.00th=[ 157], 20.00th=[ 203], | 30.00th=[ 218], 40.00th=[ 271], 50.00th=[ 368], 60.00th=[ 435], | 70.00th=[ 659], 80.00th=[ 735], 90.00th=[ 776], 95.00th=[ 852], | 99.00th=[ 852], 99.50th=[ 852], 99.90th=[ 852], 99.95th=[ 852], | 99.99th=[ 852] bw ( KiB/s): min= 1374, max= 4071, per=38.61%, avg=2190.50, stdev=793.05, samples=8 iops : min= 1, max= 3, avg= 1.25, stdev= 0.71, samples=8 lat (msec) : 100=8.33%, 250=33.33%, 500=25.00%, 750=16.67%, 1000=16.67% cpu : usr=0.00%, sys=4.47%, ctx=93, 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=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=144835: Thu Aug 27 19:19:34 2026 read: IOPS=1, BW=1262KiB/s (1292kB/s)(6144KiB/4869msec) clat (msec): min=107, max=835, avg=371.69, stdev=294.44 lat (msec): min=107, max=835, avg=371.69, stdev=294.44 clat percentiles (msec): | 1.00th=[ 108], 5.00th=[ 108], 10.00th=[ 108], 20.00th=[ 126], | 30.00th=[ 126], 40.00th=[ 192], 50.00th=[ 192], 60.00th=[ 363], | 70.00th=[ 609], 80.00th=[ 609], 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= 2043, max= 4039, per=81.70%, avg=3310.33, stdev=1101.65, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=1, BW=1262KiB/s (1292kB/s)(6144KiB/4869msec); 0 zone resets clat (msec): min=164, max=642, avg=425.16, stdev=229.30 lat (msec): min=164, max=642, avg=425.28, stdev=229.33 clat percentiles (msec): | 1.00th=[ 165], 5.00th=[ 165], 10.00th=[ 165], 20.00th=[ 180], | 30.00th=[ 180], 40.00th=[ 321], 50.00th=[ 321], 60.00th=[ 617], | 70.00th=[ 625], 80.00th=[ 625], 90.00th=[ 642], 95.00th=[ 642], | 99.00th=[ 642], 99.50th=[ 642], 99.90th=[ 642], 99.95th=[ 642], | 99.99th=[ 642] bw ( KiB/s): min= 2019, max= 2786, per=38.45%, avg=2181.20, stdev=338.23, samples=5 iops : min= 1, max= 2, avg= 1.20, stdev= 0.45, samples=5 lat (msec) : 250=41.67%, 500=16.67%, 750=33.33%, 1000=8.33% cpu : usr=0.00%, sys=3.53%, ctx=74, 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=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=144836: Thu Aug 27 19:19:34 2026 read: IOPS=1, BW=1077KiB/s (1103kB/s)(5120KiB/4755msec) clat (msec): min=121, max=1205, avg=384.69, stdev=462.64 lat (msec): min=121, max=1205, avg=384.70, stdev=462.64 clat percentiles (msec): | 1.00th=[ 122], 5.00th=[ 122], 10.00th=[ 122], 20.00th=[ 122], | 30.00th=[ 144], 40.00th=[ 144], 50.00th=[ 180], 60.00th=[ 180], | 70.00th=[ 275], 80.00th=[ 275], 90.00th=[ 1200], 95.00th=[ 1200], | 99.00th=[ 1200], 99.50th=[ 1200], 99.90th=[ 1200], 99.95th=[ 1200], | 99.99th=[ 1200] bw ( KiB/s): min= 3992, max= 4087, per=99.69%, avg=4039.50, stdev=67.18, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1507KiB/s (1544kB/s)(7168KiB/4755msec); 0 zone resets clat (msec): min=225, max=747, avg=399.60, stdev=215.80 lat (msec): min=225, max=747, avg=399.67, stdev=215.81 clat percentiles (msec): | 1.00th=[ 226], 5.00th=[ 226], 10.00th=[ 226], 20.00th=[ 228], | 30.00th=[ 243], 40.00th=[ 243], 50.00th=[ 264], 60.00th=[ 464], | 70.00th=[ 464], 80.00th=[ 625], 90.00th=[ 751], 95.00th=[ 751], | 99.00th=[ 751], 99.50th=[ 751], 99.90th=[ 751], 99.95th=[ 751], | 99.99th=[ 751] bw ( KiB/s): min= 1924, max= 4087, per=42.59%, avg=2416.20, stdev=935.15, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (msec) : 250=50.00%, 500=25.00%, 750=16.67%, 2000=8.33% cpu : usr=0.00%, sys=4.33%, ctx=86, 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=4052KiB/s (4149kB/s), 405KiB/s-1913KiB/s (415kB/s-1959kB/s), io=20.0MiB (20.0MB), run=3747-5054msec WRITE: bw=5673KiB/s (5809kB/s), 1262KiB/s-2026KiB/s (1292kB/s-2075kB/s), io=28.0MiB (29.4MB), run=3747-5054msec 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=144851: Thu Aug 27 19:19:47 2026 read: IOPS=1, BW=5548KiB/s (5681kB/s)(12.0MiB/2215msec) clat (msec): min=653, max=891, avg=738.04, stdev=132.79 lat (msec): min=653, max=891, avg=738.04, stdev=132.79 clat percentiles (msec): | 1.00th=[ 651], 5.00th=[ 651], 10.00th=[ 651], 20.00th=[ 651], | 30.00th=[ 651], 40.00th=[ 667], 50.00th=[ 667], 60.00th=[ 667], | 70.00th=[ 894], 80.00th=[ 894], 90.00th=[ 894], 95.00th=[ 894], | 99.00th=[ 894], 99.50th=[ 894], 99.90th=[ 894], 99.95th=[ 894], | 99.99th=[ 894] bw ( KiB/s): min= 7953, max= 8143, per=100.00%, avg=8048.00, stdev=134.35, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=66.67%, 1000=33.33% cpu : usr=0.00%, sys=16.17%, ctx=296, 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=144852: Thu Aug 27 19:19:47 2026 read: IOPS=0, BW=1244KiB/s (1274kB/s)(4096KiB/3292msec) clat (nsec): min=687077k, max=687077k, avg=687077016.00, stdev= 0.00 lat (nsec): min=687079k, max=687079k, avg=687079001.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 684], 5.00th=[ 684], 10.00th=[ 684], 20.00th=[ 684], | 30.00th=[ 684], 40.00th=[ 684], 50.00th=[ 684], 60.00th=[ 684], | 70.00th=[ 684], 80.00th=[ 684], 90.00th=[ 684], 95.00th=[ 684], | 99.00th=[ 684], 99.50th=[ 684], 99.90th=[ 684], 99.95th=[ 684], | 99.99th=[ 684] bw ( KiB/s): min= 8143, max= 8143, per=100.00%, avg=8143.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2488KiB/s (2548kB/s)(8192KiB/3292msec); 0 zone resets clat (msec): min=935, max=1666, avg=1300.97, stdev=517.45 lat (msec): min=935, max=1667, avg=1301.30, stdev=517.51 clat percentiles (msec): | 1.00th=[ 936], 5.00th=[ 936], 10.00th=[ 936], 20.00th=[ 936], | 30.00th=[ 936], 40.00th=[ 936], 50.00th=[ 936], 60.00th=[ 1670], | 70.00th=[ 1670], 80.00th=[ 1670], 90.00th=[ 1670], 95.00th=[ 1670], | 99.00th=[ 1670], 99.50th=[ 1670], 99.90th=[ 1670], 99.95th=[ 1670], | 99.99th=[ 1670] bw ( KiB/s): min= 7953, max= 7953, per=80.75%, avg=7953.00, 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=4.59%, ctx=104, 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=144853: Thu Aug 27 19:19:47 2026 write: IOPS=0, BW=3693KiB/s (3782kB/s)(12.0MiB/3327msec); 0 zone resets clat (msec): min=574, max=1546, avg=1102.28, stdev=491.63 lat (msec): min=574, max=1548, avg=1108.44, stdev=493.57 clat percentiles (msec): | 1.00th=[ 575], 5.00th=[ 575], 10.00th=[ 575], 20.00th=[ 575], | 30.00th=[ 575], 40.00th=[ 1183], 50.00th=[ 1183], 60.00th=[ 1183], | 70.00th=[ 1552], 80.00th=[ 1552], 90.00th=[ 1552], 95.00th=[ 1552], | 99.00th=[ 1552], 99.50th=[ 1552], 99.90th=[ 1552], 99.95th=[ 1552], | 99.99th=[ 1552] bw ( KiB/s): min= 7953, max= 8175, per=81.88%, avg=8064.00, stdev=156.98, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 2000=66.67% cpu : usr=0.00%, sys=3.01%, ctx=33, 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=144854: Thu Aug 27 19:19:47 2026 write: IOPS=1, BW=4378KiB/s (4483kB/s)(12.0MiB/2807msec); 0 zone resets clat (msec): min=375, max=1227, avg=934.65, stdev=484.11 lat (msec): min=376, max=1228, avg=935.24, stdev=484.35 clat percentiles (msec): | 1.00th=[ 376], 5.00th=[ 376], 10.00th=[ 376], 20.00th=[ 376], | 30.00th=[ 376], 40.00th=[ 1200], 50.00th=[ 1200], 60.00th=[ 1200], | 70.00th=[ 1234], 80.00th=[ 1234], 90.00th=[ 1234], 95.00th=[ 1234], | 99.00th=[ 1234], 99.50th=[ 1234], 99.90th=[ 1234], 99.95th=[ 1234], | 99.99th=[ 1234] bw ( KiB/s): min= 7953, max= 8192, per=81.96%, avg=8072.50, stdev=169.00, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.00%, sys=3.21%, ctx=48, 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=4977KiB/s (5096kB/s), 1244KiB/s-5548KiB/s (1274kB/s-5681kB/s), io=16.0MiB (16.8MB), run=2215-3292msec WRITE: bw=9849KiB/s (10.1MB/s), 2488KiB/s-4378KiB/s (2548kB/s-4483kB/s), io=32.0MiB (33.6MB), run=2807-3327msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144846: Thu Aug 27 19:19:47 2026 read: IOPS=2, BW=10.5MiB/s (10.0MB/s)(12.0MiB/1144msec) clat (msec): min=212, max=516, avg=337.63, stdev=158.93 lat (msec): min=212, max=516, avg=337.63, stdev=158.93 clat percentiles (msec): | 1.00th=[ 213], 5.00th=[ 213], 10.00th=[ 213], 20.00th=[ 213], | 30.00th=[ 213], 40.00th=[ 284], 50.00th=[ 284], 60.00th=[ 284], | 70.00th=[ 518], 80.00th=[ 518], 90.00th=[ 518], 95.00th=[ 518], | 99.00th=[ 518], 99.50th=[ 518], 99.90th=[ 518], 99.95th=[ 518], | 99.99th=[ 518] bw ( KiB/s): min= 6884, max= 8175, per=100.00%, avg=7529.50, stdev=912.87, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 250=33.33%, 500=33.33%, 750=33.33% cpu : usr=0.00%, sys=11.81%, ctx=66, majf=0, minf=7 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144847: Thu Aug 27 19:19:47 2026 read: IOPS=0, BW=977KiB/s (1001kB/s)(4096KiB/4192msec) clat (nsec): min=1328.0M, max=1328.0M, avg=1328011911.00, stdev= 0.00 lat (nsec): min=1328.0M, max=1328.0M, avg=1328013676.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1334], 5.00th=[ 1334], 10.00th=[ 1334], 20.00th=[ 1334], | 30.00th=[ 1334], 40.00th=[ 1334], 50.00th=[ 1334], 60.00th=[ 1334], | 70.00th=[ 1334], 80.00th=[ 1334], 90.00th=[ 1334], 95.00th=[ 1334], | 99.00th=[ 1334], 99.50th=[ 1334], 99.90th=[ 1334], 99.95th=[ 1334], | 99.99th=[ 1334] 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=1954KiB/s (2001kB/s)(8192KiB/4192msec); 0 zone resets clat (msec): min=571, max=2194, avg=1383.02, stdev=1147.80 lat (msec): min=571, max=2194, avg=1383.35, stdev=1147.78 clat percentiles (msec): | 1.00th=[ 575], 5.00th=[ 575], 10.00th=[ 575], 20.00th=[ 575], | 30.00th=[ 575], 40.00th=[ 575], 50.00th=[ 575], 60.00th=[ 2198], | 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= 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%, 2000=33.33%, >=2000=33.33% cpu : usr=0.07%, sys=4.22%, 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=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=144848: Thu Aug 27 19:19:47 2026 write: IOPS=0, BW=3938KiB/s (4033kB/s)(12.0MiB/3120msec); 0 zone resets clat (msec): min=556, max=1743, avg=1023.53, stdev=632.91 lat (msec): min=556, max=1744, avg=1023.83, stdev=632.99 clat percentiles (msec): | 1.00th=[ 558], 5.00th=[ 558], 10.00th=[ 558], 20.00th=[ 558], | 30.00th=[ 558], 40.00th=[ 768], 50.00th=[ 768], 60.00th=[ 768], | 70.00th=[ 1737], 80.00th=[ 1737], 90.00th=[ 1737], 95.00th=[ 1737], | 99.00th=[ 1737], 99.50th=[ 1737], 99.90th=[ 1737], 99.95th=[ 1737], | 99.99th=[ 1737] bw ( KiB/s): min= 7907, max= 8175, per=100.00%, avg=8041.00, stdev=189.50, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.06%, sys=5.16%, ctx=58, majf=0, minf=7 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144850: Thu Aug 27 19:19:47 2026 write: IOPS=1, BW=5575KiB/s (5709kB/s)(12.0MiB/2204msec); 0 zone resets clat (msec): min=369, max=948, avg=716.74, stdev=305.90 lat (msec): min=370, max=948, avg=717.10, stdev=305.88 clat percentiles (msec): | 1.00th=[ 372], 5.00th=[ 372], 10.00th=[ 372], 20.00th=[ 372], | 30.00th=[ 372], 40.00th=[ 835], 50.00th=[ 835], 60.00th=[ 835], | 70.00th=[ 953], 80.00th=[ 953], 90.00th=[ 953], 95.00th=[ 953], | 99.00th=[ 953], 99.50th=[ 953], 99.90th=[ 953], 99.95th=[ 953], | 99.99th=[ 953] bw ( KiB/s): min= 8031, max= 8159, per=100.00%, avg=8095.00, stdev=90.51, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 1000=66.67% cpu : usr=0.05%, sys=5.31%, 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 Run status group 0 (all jobs): READ: bw=3908KiB/s (4002kB/s), 977KiB/s-10.5MiB/s (1001kB/s-10.0MB/s), io=16.0MiB (16.8MB), run=1144-4192msec WRITE: bw=7817KiB/s (8004kB/s), 1954KiB/s-5575KiB/s (2001kB/s-5709kB/s), io=32.0MiB (33.6MB), run=2204-4192msec