== sanity test 398b: DIO and buffer IO race ============== 21:53:07 (1787104387) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 2.69935 s, 18.6 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=184980: Tue Aug 18 21:54:19 2026 read: IOPS=24, BW=96.5KiB/s (98.8kB/s)(5992KiB/62122msec) clat (usec): min=33, max=631424, avg=22878.87, stdev=20078.36 lat (usec): min=34, max=631425, avg=22881.38, stdev=20078.45 clat percentiles (usec): | 1.00th=[ 83], 5.00th=[ 8160], 10.00th=[ 10159], 20.00th=[ 12780], | 30.00th=[ 14877], 40.00th=[ 17695], 50.00th=[ 20055], 60.00th=[ 23462], | 70.00th=[ 26870], 80.00th=[ 30802], 90.00th=[ 36963], 95.00th=[ 45351], | 99.00th=[ 66847], 99.50th=[ 76022], 99.90th=[ 87557], 99.95th=[633340], | 99.99th=[633340] bw ( KiB/s): min= 13, max= 167, per=24.95%, avg=95.80, stdev=26.51, samples=123 iops : min= 3, max= 41, avg=23.42, stdev= 6.62, samples=123 write: IOPS=25, BW=101KiB/s (104kB/s)(6296KiB/62122msec); 0 zone resets clat (usec): min=768, max=118476, avg=17558.25, stdev=14821.84 lat (usec): min=768, max=118477, avg=17559.72, stdev=14821.82 clat percentiles (usec): | 1.00th=[ 1205], 5.00th=[ 1762], 10.00th=[ 2442], 20.00th=[ 3752], | 30.00th=[ 6390], 40.00th=[ 11207], 50.00th=[ 14353], 60.00th=[ 17695], | 70.00th=[ 22414], 80.00th=[ 29230], 90.00th=[ 38536], 95.00th=[ 47449], | 99.00th=[ 63177], 99.50th=[ 68682], 99.90th=[ 76022], 99.95th=[117965], | 99.99th=[117965] bw ( KiB/s): min= 32, max= 176, per=25.27%, avg=101.57, stdev=31.03, samples=122 iops : min= 8, max= 44, avg=24.85, stdev= 7.77, samples=122 lat (usec) : 50=0.07%, 100=0.68%, 250=0.62%, 500=0.07%, 750=0.03% lat (usec) : 1000=0.20% lat (msec) : 2=3.12%, 4=7.75%, 10=11.17%, 20=33.69%, 50=39.06% lat (msec) : 100=3.48%, 250=0.03%, 750=0.03% cpu : usr=0.16%, sys=16.61%, ctx=8139, 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=184981: Tue Aug 18 21:54:19 2026 read: IOPS=23, BW=95.9KiB/s (98.2kB/s)(5940KiB/61924msec) clat (usec): min=35, max=94545, avg=22582.51, stdev=12769.12 lat (usec): min=35, max=94546, avg=22586.11, stdev=12773.89 clat percentiles (usec): | 1.00th=[ 77], 5.00th=[ 8455], 10.00th=[10421], 20.00th=[12649], | 30.00th=[14746], 40.00th=[17171], 50.00th=[19792], 60.00th=[22938], | 70.00th=[26346], 80.00th=[31327], 90.00th=[38536], 95.00th=[46400], | 99.00th=[64226], 99.50th=[77071], 99.90th=[90702], 99.95th=[94897], | 99.99th=[94897] bw ( KiB/s): min= 6, max= 151, per=24.88%, avg=95.55, stdev=23.31, samples=123 iops : min= 1, max= 37, avg=23.36, stdev= 5.81, samples=123 write: IOPS=25, BW=103KiB/s (105kB/s)(6348KiB/61924msec); 0 zone resets clat (usec): min=778, max=586112, avg=17755.19, stdev=20530.09 lat (usec): min=779, max=586113, avg=17761.72, stdev=20539.60 clat percentiles (usec): | 1.00th=[ 1188], 5.00th=[ 1811], 10.00th=[ 2343], 20.00th=[ 3589], | 30.00th=[ 5932], 40.00th=[ 10421], 50.00th=[ 14484], 60.00th=[ 17957], | 70.00th=[ 22938], 80.00th=[ 28967], 90.00th=[ 38536], 95.00th=[ 45876], | 99.00th=[ 61080], 99.50th=[ 66847], 99.90th=[115868], 99.95th=[583009], | 99.99th=[583009] bw ( KiB/s): min= 6, max= 191, per=25.45%, avg=102.29, stdev=31.36, samples=123 iops : min= 1, max= 47, avg=25.03, stdev= 7.87, samples=123 lat (usec) : 50=0.16%, 100=0.62%, 250=0.42%, 500=0.03%, 1000=0.20% lat (msec) : 2=3.19%, 4=8.40%, 10=11.56%, 20=33.59%, 50=38.31% lat (msec) : 100=3.45%, 250=0.03%, 750=0.03% cpu : usr=0.13%, sys=16.58%, ctx=8142, 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=184982: Tue Aug 18 21:54:19 2026 read: IOPS=24, BW=98.1KiB/s (100kB/s)(6028KiB/61425msec) clat (usec): min=37, max=89191, avg=21787.22, stdev=12245.23 lat (usec): min=38, max=89192, avg=21788.48, stdev=12245.36 clat percentiles (usec): | 1.00th=[ 74], 5.00th=[ 7439], 10.00th=[10028], 20.00th=[12518], | 30.00th=[14353], 40.00th=[16581], 50.00th=[19530], 60.00th=[22676], | 70.00th=[26346], 80.00th=[30802], 90.00th=[36963], 95.00th=[43254], | 99.00th=[59507], 99.50th=[76022], 99.90th=[87557], 99.95th=[89654], | 99.99th=[89654] bw ( KiB/s): min= 55, max= 159, per=25.70%, avg=98.69, stdev=23.91, samples=121 iops : min= 13, max= 39, avg=24.14, stdev= 5.97, samples=121 write: IOPS=25, BW=102KiB/s (104kB/s)(6260KiB/61425msec); 0 zone resets clat (usec): min=886, max=616763, avg=18147.72, stdev=21627.72 lat (usec): min=887, max=616764, avg=18149.30, stdev=21627.71 clat percentiles (usec): | 1.00th=[ 1172], 5.00th=[ 1795], 10.00th=[ 2507], 20.00th=[ 3720], | 30.00th=[ 6128], 40.00th=[ 10552], 50.00th=[ 13698], 60.00th=[ 17433], | 70.00th=[ 22676], 80.00th=[ 29754], 90.00th=[ 40109], 95.00th=[ 50070], | 99.00th=[ 64750], 99.50th=[ 69731], 99.90th=[ 94897], 99.95th=[616563], | 99.99th=[616563] bw ( KiB/s): min= 47, max= 175, per=25.45%, avg=102.31, stdev=29.26, samples=121 iops : min= 11, max= 43, avg=25.05, stdev= 7.38, samples=121 lat (usec) : 50=0.16%, 100=0.91%, 250=0.81%, 500=0.03%, 1000=0.13% lat (msec) : 2=3.09%, 4=8.07%, 10=11.56%, 20=34.08%, 50=37.47% lat (msec) : 100=3.65%, 750=0.03% cpu : usr=0.11%, sys=16.80%, ctx=7980, 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=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=184983: Tue Aug 18 21:54:19 2026 read: IOPS=24, BW=96.8KiB/s (99.1kB/s)(6052KiB/62516msec) clat (usec): min=36, max=106227, avg=22373.56, stdev=12431.08 lat (usec): min=38, max=106229, avg=22375.12, stdev=12430.83 clat percentiles (usec): | 1.00th=[ 76], 5.00th=[ 7963], 10.00th=[ 10290], 20.00th=[ 12780], | 30.00th=[ 15401], 40.00th=[ 17695], 50.00th=[ 20317], 60.00th=[ 23200], | 70.00th=[ 26608], 80.00th=[ 30540], 90.00th=[ 37487], 95.00th=[ 43779], | 99.00th=[ 65799], 99.50th=[ 73925], 99.90th=[101188], 99.95th=[106431], | 99.99th=[106431] bw ( KiB/s): min= 39, max= 192, per=25.33%, avg=97.27, stdev=24.66, samples=123 iops : min= 9, max= 48, avg=23.79, stdev= 6.21, samples=123 write: IOPS=24, BW=99.8KiB/s (102kB/s)(6236KiB/62516msec); 0 zone resets clat (usec): min=906, max=619230, avg=18255.22, stdev=21562.92 lat (usec): min=907, max=619232, avg=18257.89, stdev=21563.41 clat percentiles (usec): | 1.00th=[ 1221], 5.00th=[ 1811], 10.00th=[ 2573], 20.00th=[ 3949], | 30.00th=[ 6456], 40.00th=[ 10552], 50.00th=[ 14353], 60.00th=[ 17695], | 70.00th=[ 22938], 80.00th=[ 29492], 90.00th=[ 39060], 95.00th=[ 48497], | 99.00th=[ 65799], 99.50th=[ 74974], 99.90th=[ 94897], 99.95th=[616563], | 99.99th=[616563] bw ( KiB/s): min= 39, max= 207, per=24.89%, avg=100.06, stdev=29.28, samples=123 iops : min= 9, max= 51, avg=24.49, stdev= 7.34, samples=123 lat (usec) : 50=0.13%, 100=0.72%, 250=0.88%, 500=0.07%, 750=0.07% lat (usec) : 1000=0.07% lat (msec) : 2=3.12%, 4=7.19%, 10=11.75%, 20=33.17%, 50=39.42% lat (msec) : 100=3.32%, 250=0.07%, 750=0.03% cpu : usr=0.12%, sys=16.57%, ctx=8178, 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=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=384KiB/s (393kB/s), 95.9KiB/s-98.1KiB/s (98.2kB/s-100kB/s), io=23.4MiB (24.6MB), run=61425-62516msec WRITE: bw=402KiB/s (412kB/s), 99.8KiB/s-103KiB/s (102kB/s-105kB/s), io=24.6MiB (25.7MB), run=61425-62516msec rand-rw: (groupid=0, jobs=1): err= 0: pid=184975: Tue Aug 18 21:54:32 2026 read: IOPS=19, BW=79.4KiB/s (81.3kB/s)(5992KiB/75499msec) clat (msec): min=3, max=631, avg=20.75, stdev=23.68 lat (msec): min=3, max=631, avg=20.75, stdev=23.68 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 6], 10.00th=[ 7], 20.00th=[ 8], | 30.00th=[ 10], 40.00th=[ 12], 50.00th=[ 14], 60.00th=[ 18], | 70.00th=[ 23], 80.00th=[ 32], 90.00th=[ 46], 95.00th=[ 60], | 99.00th=[ 86], 99.50th=[ 102], 99.90th=[ 124], 99.95th=[ 634], | 99.99th=[ 634] bw ( KiB/s): min= 16, max= 248, per=25.35%, avg=80.11, stdev=52.78, samples=148 iops : min= 4, max= 62, avg=19.55, stdev=13.26, samples=148 write: IOPS=20, BW=83.4KiB/s (85.4kB/s)(6296KiB/75499msec); 0 zone resets clat (msec): min=6, max=153, avg=28.08, stdev=19.66 lat (msec): min=6, max=153, avg=28.08, stdev=19.66 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 15], 40.00th=[ 18], 50.00th=[ 22], 60.00th=[ 28], | 70.00th=[ 34], 80.00th=[ 44], 90.00th=[ 55], 95.00th=[ 67], | 99.00th=[ 97], 99.50th=[ 113], 99.90th=[ 140], 99.95th=[ 155], | 99.99th=[ 155] bw ( KiB/s): min= 16, max= 264, per=25.24%, avg=83.54, stdev=54.53, samples=149 iops : min= 4, max= 66, avg=20.41, stdev=13.73, samples=149 lat (msec) : 4=0.26%, 10=21.52%, 20=34.38%, 50=33.04%, 100=10.12% lat (msec) : 250=0.65%, 750=0.03% cpu : usr=0.10%, sys=8.07%, ctx=5671, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=184976: Tue Aug 18 21:54:32 2026 read: IOPS=19, BW=78.3KiB/s (80.2kB/s)(5940KiB/75860msec) clat (msec): min=3, max=597, avg=20.62, stdev=23.33 lat (msec): min=3, max=597, avg=20.62, stdev=23.33 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 6], 10.00th=[ 6], 20.00th=[ 8], | 30.00th=[ 9], 40.00th=[ 11], 50.00th=[ 14], 60.00th=[ 17], | 70.00th=[ 22], 80.00th=[ 31], 90.00th=[ 47], 95.00th=[ 60], | 99.00th=[ 86], 99.50th=[ 96], 99.90th=[ 117], 99.95th=[ 600], | 99.99th=[ 600] bw ( KiB/s): min= 7, max= 264, per=24.68%, avg=77.98, stdev=55.27, samples=149 iops : min= 1, max= 66, avg=19.01, stdev=13.89, samples=149 write: IOPS=20, BW=83.7KiB/s (85.7kB/s)(6348KiB/75860msec); 0 zone resets clat (msec): min=5, max=150, avg=28.37, stdev=19.83 lat (msec): min=5, max=150, avg=28.37, stdev=19.84 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 15], 40.00th=[ 18], 50.00th=[ 22], 60.00th=[ 29], | 70.00th=[ 35], 80.00th=[ 44], 90.00th=[ 55], 95.00th=[ 67], | 99.00th=[ 102], 99.50th=[ 108], 99.90th=[ 136], 99.95th=[ 150], | 99.99th=[ 150] bw ( KiB/s): min= 15, max= 248, per=25.05%, avg=82.90, stdev=53.32, samples=149 iops : min= 3, max= 62, avg=20.25, stdev=13.42, samples=149 lat (msec) : 4=0.39%, 10=21.94%, 20=33.76%, 50=32.71%, 100=10.48% lat (msec) : 250=0.68%, 750=0.03% cpu : usr=0.11%, sys=7.95%, ctx=5599, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=184977: Tue Aug 18 21:54:32 2026 read: IOPS=19, BW=79.7KiB/s (81.6kB/s)(6028KiB/75627msec) clat (msec): min=3, max=132, avg=20.25, stdev=17.51 lat (msec): min=3, max=132, avg=20.25, stdev=17.51 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 6], 10.00th=[ 6], 20.00th=[ 8], | 30.00th=[ 9], 40.00th=[ 12], 50.00th=[ 14], 60.00th=[ 17], | 70.00th=[ 23], 80.00th=[ 31], 90.00th=[ 46], 95.00th=[ 59], | 99.00th=[ 81], 99.50th=[ 95], 99.90th=[ 127], 99.95th=[ 133], | 99.99th=[ 133] bw ( KiB/s): min= 15, max= 263, per=25.20%, avg=79.64, stdev=53.80, samples=149 iops : min= 3, max= 65, avg=19.43, stdev=13.53, samples=149 write: IOPS=20, BW=82.8KiB/s (84.8kB/s)(6260KiB/75627msec); 0 zone resets clat (msec): min=5, max=608, avg=28.68, stdev=24.46 lat (msec): min=5, max=608, avg=28.68, stdev=24.46 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 15], 40.00th=[ 18], 50.00th=[ 22], 60.00th=[ 29], | 70.00th=[ 35], 80.00th=[ 43], 90.00th=[ 56], 95.00th=[ 68], | 99.00th=[ 101], 99.50th=[ 108], 99.90th=[ 129], 99.95th=[ 609], | 99.99th=[ 609] bw ( KiB/s): min= 23, max= 231, per=24.97%, avg=82.64, stdev=54.04, samples=149 iops : min= 5, max= 57, avg=20.18, stdev=13.60, samples=149 lat (msec) : 4=0.36%, 10=21.55%, 20=34.28%, 50=32.88%, 100=10.32% lat (msec) : 250=0.59%, 750=0.03% cpu : usr=0.10%, sys=7.90%, ctx=5508, 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=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=184978: Tue Aug 18 21:54:32 2026 read: IOPS=20, BW=80.4KiB/s (82.3kB/s)(6052KiB/75294msec) clat (msec): min=3, max=124, avg=19.95, stdev=16.95 lat (msec): min=3, max=124, avg=19.95, stdev=16.95 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 6], 10.00th=[ 6], 20.00th=[ 8], | 30.00th=[ 10], 40.00th=[ 12], 50.00th=[ 14], 60.00th=[ 18], | 70.00th=[ 23], 80.00th=[ 30], 90.00th=[ 44], 95.00th=[ 56], | 99.00th=[ 81], 99.50th=[ 93], 99.90th=[ 121], 99.95th=[ 125], | 99.99th=[ 125] bw ( KiB/s): min= 15, max= 264, per=25.64%, avg=81.01, stdev=52.80, samples=146 iops : min= 3, max= 66, avg=19.77, stdev=13.29, samples=146 write: IOPS=20, BW=82.8KiB/s (84.8kB/s)(6236KiB/75294msec); 0 zone resets clat (msec): min=5, max=611, avg=28.79, stdev=24.11 lat (msec): min=5, max=611, avg=28.79, stdev=24.11 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 19], 50.00th=[ 23], 60.00th=[ 29], | 70.00th=[ 35], 80.00th=[ 42], 90.00th=[ 54], 95.00th=[ 66], | 99.00th=[ 96], 99.50th=[ 109], 99.90th=[ 132], 99.95th=[ 609], | 99.99th=[ 609] bw ( KiB/s): min= 31, max= 248, per=24.92%, avg=82.50, stdev=51.77, samples=148 iops : min= 7, max= 62, avg=20.15, stdev=13.02, samples=148 lat (msec) : 4=0.26%, 10=20.74%, 20=33.40%, 50=35.48%, 100=9.54% lat (msec) : 250=0.55%, 750=0.03% cpu : usr=0.12%, sys=8.02%, ctx=5647, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=317KiB/s (324kB/s), 78.3KiB/s-80.4KiB/s (80.2kB/s-82.3kB/s), io=23.4MiB (24.6MB), run=75294-75860msec WRITE: bw=331KiB/s (339kB/s), 82.8KiB/s-83.7KiB/s (84.8kB/s-85.7kB/s), io=24.6MiB (25.7MB), run=75294-75860msec 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=185009: Tue Aug 18 21:54:52 2026 read: IOPS=23, BW=378KiB/s (387kB/s)(5920KiB/15682msec) clat (usec): min=43, max=74616, avg=21540.35, stdev=12274.43 lat (usec): min=43, max=74617, avg=21541.54, stdev=12273.97 clat percentiles (usec): | 1.00th=[ 61], 5.00th=[ 103], 10.00th=[ 9110], 20.00th=[12780], | 30.00th=[14877], 40.00th=[16581], 50.00th=[19268], 60.00th=[22414], | 70.00th=[26608], 80.00th=[29230], 90.00th=[38536], 95.00th=[45351], | 99.00th=[56886], 99.50th=[63701], 99.90th=[74974], 99.95th=[74974], | 99.99th=[74974] bw ( KiB/s): min= 221, max= 539, per=25.80%, avg=377.39, stdev=90.15, samples=31 iops : min= 13, max= 33, avg=22.90, stdev= 5.63, samples=31 write: IOPS=25, BW=406KiB/s (416kB/s)(6368KiB/15682msec); 0 zone resets clat (usec): min=1523, max=120350, avg=19292.23, stdev=16039.81 lat (usec): min=1525, max=120351, avg=19294.09, stdev=16039.69 clat percentiles (usec): | 1.00th=[ 1991], 5.00th=[ 3195], 10.00th=[ 3949], 20.00th=[ 5669], | 30.00th=[ 8586], 40.00th=[ 11863], 50.00th=[ 15139], 60.00th=[ 19268], | 70.00th=[ 23725], 80.00th=[ 30802], 90.00th=[ 40109], 95.00th=[ 51119], | 99.00th=[ 71828], 99.50th=[102237], 99.90th=[120062], 99.95th=[120062], | 99.99th=[120062] bw ( KiB/s): min= 223, max= 574, per=26.36%, avg=405.97, stdev=94.83, samples=31 iops : min= 13, max= 35, avg=24.71, stdev= 5.97, samples=31 lat (usec) : 50=0.13%, 100=2.21%, 250=0.91%, 500=0.13%, 1000=0.13% lat (msec) : 2=0.65%, 4=4.82%, 10=14.06%, 20=34.51%, 50=38.54% lat (msec) : 100=3.65%, 250=0.26% cpu : usr=0.11%, sys=19.78%, ctx=2335, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=185011: Tue Aug 18 21:54:52 2026 read: IOPS=22, BW=360KiB/s (369kB/s)(5744KiB/15951msec) clat (usec): min=53, max=97290, avg=22940.05, stdev=13584.57 lat (usec): min=55, max=97291, avg=22961.56, stdev=13590.28 clat percentiles (usec): | 1.00th=[ 72], 5.00th=[ 119], 10.00th=[ 8717], 20.00th=[13829], | 30.00th=[16319], 40.00th=[19006], 50.00th=[21365], 60.00th=[23725], | 70.00th=[26870], 80.00th=[31589], 90.00th=[38536], 95.00th=[45351], | 99.00th=[70779], 99.50th=[77071], 99.90th=[96994], 99.95th=[96994], | 99.99th=[96994] bw ( KiB/s): min= 202, max= 576, per=24.52%, avg=358.71, stdev=105.30, samples=31 iops : min= 12, max= 36, avg=21.74, stdev= 6.66, samples=31 write: IOPS=25, BW=410KiB/s (420kB/s)(6544KiB/15951msec); 0 zone resets clat (usec): min=1035, max=85899, avg=18511.94, stdev=14395.43 lat (usec): min=1035, max=85900, avg=18513.56, stdev=14395.45 clat percentiles (usec): | 1.00th=[ 1778], 5.00th=[ 2999], 10.00th=[ 3851], 20.00th=[ 5145], | 30.00th=[ 7963], 40.00th=[11863], 50.00th=[15270], 60.00th=[19268], | 70.00th=[23725], 80.00th=[28443], 90.00th=[40633], 95.00th=[49021], | 99.00th=[58983], 99.50th=[61604], 99.90th=[85459], 99.95th=[85459], | 99.99th=[85459] bw ( KiB/s): min= 286, max= 540, per=26.06%, avg=401.26, stdev=74.19, samples=31 iops : min= 17, max= 33, avg=24.42, stdev= 4.72, samples=31 lat (usec) : 100=1.30%, 250=2.34% lat (msec) : 2=0.91%, 4=5.21%, 10=14.32%, 20=28.65%, 50=43.88% lat (msec) : 100=3.39% cpu : usr=0.08%, sys=19.54%, ctx=2241, 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=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=185013: Tue Aug 18 21:54:52 2026 read: IOPS=23, BW=382KiB/s (392kB/s)(6256KiB/16361msec) clat (usec): min=50, max=77995, avg=21673.09, stdev=11869.26 lat (usec): min=51, max=77996, avg=21674.02, stdev=11869.25 clat percentiles (usec): | 1.00th=[ 61], 5.00th=[ 105], 10.00th=[ 9241], 20.00th=[13566], | 30.00th=[15664], 40.00th=[18482], 50.00th=[20579], 60.00th=[23200], | 70.00th=[26608], 80.00th=[29754], 90.00th=[36439], 95.00th=[42730], | 99.00th=[56886], 99.50th=[71828], 99.90th=[78119], 99.95th=[78119], | 99.99th=[78119] bw ( KiB/s): min= 222, max= 573, per=26.00%, avg=380.31, stdev=93.41, samples=32 iops : min= 13, max= 35, avg=23.13, stdev= 5.86, samples=32 write: IOPS=23, BW=369KiB/s (378kB/s)(6032KiB/16361msec); 0 zone resets clat (usec): min=1259, max=77947, avg=20624.64, stdev=15068.51 lat (usec): min=1260, max=77950, avg=20626.84, stdev=15068.84 clat percentiles (usec): | 1.00th=[ 1532], 5.00th=[ 3064], 10.00th=[ 3982], 20.00th=[ 5538], | 30.00th=[ 9241], 40.00th=[14222], 50.00th=[19268], 60.00th=[21890], | 70.00th=[26346], 80.00th=[33424], 90.00th=[41157], 95.00th=[47973], | 99.00th=[66323], 99.50th=[67634], 99.90th=[78119], 99.95th=[78119], | 99.99th=[78119] bw ( KiB/s): min= 158, max= 544, per=23.52%, avg=362.28, stdev=101.64, samples=32 iops : min= 9, max= 34, avg=22.00, stdev= 6.47, samples=32 lat (usec) : 100=2.34%, 250=1.82%, 500=0.13% lat (msec) : 2=0.52%, 4=4.43%, 10=11.98%, 20=27.99%, 50=47.66% lat (msec) : 100=3.12% cpu : usr=0.09%, sys=18.62%, ctx=2341, 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=185014: Tue Aug 18 21:54:52 2026 read: IOPS=24, BW=390KiB/s (400kB/s)(6032KiB/15458msec) clat (usec): min=37, max=99277, avg=21712.61, stdev=13386.33 lat (usec): min=37, max=99278, avg=21713.47, stdev=13386.33 clat percentiles (usec): | 1.00th=[ 45], 5.00th=[ 92], 10.00th=[ 734], 20.00th=[13173], | 30.00th=[15664], 40.00th=[17695], 50.00th=[20055], 60.00th=[23462], | 70.00th=[26608], 80.00th=[31065], 90.00th=[36439], 95.00th=[44827], | 99.00th=[72877], 99.50th=[94897], 99.90th=[99091], 99.95th=[99091], | 99.99th=[99091] bw ( KiB/s): min= 223, max= 540, per=26.47%, avg=387.20, stdev=79.26, samples=30 iops : min= 13, max= 33, avg=23.57, stdev= 4.93, samples=30 write: IOPS=25, BW=405KiB/s (414kB/s)(6256KiB/15458msec); 0 zone resets clat (usec): min=1181, max=89041, avg=18301.49, stdev=15000.79 lat (usec): min=1183, max=89042, avg=18304.68, stdev=15001.64 clat percentiles (usec): | 1.00th=[ 1844], 5.00th=[ 2835], 10.00th=[ 3621], 20.00th=[ 4948], | 30.00th=[ 8029], 40.00th=[11207], 50.00th=[13960], 60.00th=[18482], | 70.00th=[23725], 80.00th=[28443], 90.00th=[39060], 95.00th=[47973], | 99.00th=[67634], 99.50th=[80217], 99.90th=[88605], 99.95th=[88605], | 99.99th=[88605] bw ( KiB/s): min= 159, max= 669, per=26.18%, avg=403.13, stdev=107.66, samples=30 iops : min= 9, max= 41, avg=24.53, stdev= 6.83, samples=30 lat (usec) : 50=0.65%, 100=2.08%, 250=2.08%, 750=0.13% lat (msec) : 2=0.91%, 4=6.25%, 10=12.89%, 20=31.77%, 50=39.97% lat (msec) : 100=3.26% cpu : usr=0.14%, sys=19.58%, ctx=2211, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=1464KiB/s (1499kB/s), 360KiB/s-390KiB/s (369kB/s-400kB/s), io=23.4MiB (24.5MB), run=15458-16361msec WRITE: bw=1540KiB/s (1577kB/s), 369KiB/s-410KiB/s (378kB/s-420kB/s), io=24.6MiB (25.8MB), run=15458-16361msec rand-rw: (groupid=0, jobs=1): err= 0: pid=185007: Tue Aug 18 21:54:56 2026 read: IOPS=18, BW=304KiB/s (311kB/s)(5920KiB/19486msec) clat (msec): min=4, max=159, avg=20.50, stdev=16.88 lat (msec): min=4, max=159, avg=20.50, stdev=16.88 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 10], | 30.00th=[ 11], 40.00th=[ 13], 50.00th=[ 15], 60.00th=[ 18], | 70.00th=[ 22], 80.00th=[ 29], 90.00th=[ 42], 95.00th=[ 54], | 99.00th=[ 81], 99.50th=[ 93], 99.90th=[ 161], 99.95th=[ 161], | 99.99th=[ 161] bw ( KiB/s): min= 96, max= 640, per=24.43%, avg=293.68, stdev=139.99, samples=38 iops : min= 6, max= 40, avg=17.87, stdev= 8.83, samples=38 write: IOPS=20, BW=327KiB/s (335kB/s)(6368KiB/19486msec); 0 zone resets clat (msec): min=7, max=131, avg=29.78, stdev=17.66 lat (msec): min=7, max=131, avg=29.79, stdev=17.66 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 26], 60.00th=[ 30], | 70.00th=[ 36], 80.00th=[ 42], 90.00th=[ 55], 95.00th=[ 66], | 99.00th=[ 83], 99.50th=[ 99], 99.90th=[ 132], 99.95th=[ 132], | 99.99th=[ 132] bw ( KiB/s): min= 126, max= 704, per=25.43%, avg=321.74, stdev=139.95, samples=38 iops : min= 7, max= 44, avg=19.63, stdev= 8.88, samples=38 lat (msec) : 10=11.98%, 20=40.62%, 50=37.89%, 100=9.24%, 250=0.26% cpu : usr=0.09%, sys=8.67%, ctx=1450, 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=185008: Tue Aug 18 21:54:56 2026 read: IOPS=18, BW=289KiB/s (296kB/s)(5744KiB/19853msec) clat (msec): min=4, max=123, avg=21.28, stdev=16.13 lat (msec): min=4, max=123, avg=21.28, stdev=16.13 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 10], | 30.00th=[ 12], 40.00th=[ 14], 50.00th=[ 17], 60.00th=[ 19], | 70.00th=[ 24], 80.00th=[ 31], 90.00th=[ 44], 95.00th=[ 54], | 99.00th=[ 78], 99.50th=[ 89], 99.90th=[ 124], 99.95th=[ 124], | 99.99th=[ 124] bw ( KiB/s): min= 64, max= 640, per=23.92%, avg=287.56, stdev=155.07, samples=39 iops : min= 4, max= 40, avg=17.49, stdev= 9.73, samples=39 write: IOPS=20, BW=330KiB/s (338kB/s)(6544KiB/19853msec); 0 zone resets clat (msec): min=7, max=106, avg=29.62, stdev=17.47 lat (msec): min=7, max=106, avg=29.62, stdev=17.47 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 25], 60.00th=[ 29], | 70.00th=[ 36], 80.00th=[ 45], 90.00th=[ 57], 95.00th=[ 66], | 99.00th=[ 78], 99.50th=[ 83], 99.90th=[ 107], 99.95th=[ 107], | 99.99th=[ 107] bw ( KiB/s): min= 127, max= 768, per=25.60%, avg=323.87, stdev=162.27, samples=39 iops : min= 7, max= 48, avg=19.74, stdev=10.24, samples=39 lat (msec) : 10=12.76%, 20=37.11%, 50=38.93%, 100=10.94%, 250=0.26% cpu : usr=0.08%, sys=8.45%, ctx=1460, 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=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=185010: Tue Aug 18 21:54:56 2026 read: IOPS=19, BW=314KiB/s (322kB/s)(6256KiB/19919msec) clat (msec): min=4, max=144, avg=21.78, stdev=16.78 lat (msec): min=4, max=144, avg=21.78, stdev=16.78 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 9], 20.00th=[ 10], | 30.00th=[ 12], 40.00th=[ 15], 50.00th=[ 17], 60.00th=[ 20], | 70.00th=[ 23], 80.00th=[ 31], 90.00th=[ 46], 95.00th=[ 59], | 99.00th=[ 83], 99.50th=[ 96], 99.90th=[ 144], 99.95th=[ 144], | 99.99th=[ 144] bw ( KiB/s): min= 96, max= 960, per=25.94%, avg=311.79, stdev=183.00, samples=39 iops : min= 6, max= 60, avg=19.00, stdev=11.48, samples=39 write: IOPS=18, BW=303KiB/s (310kB/s)(6032KiB/19919msec); 0 zone resets clat (msec): min=6, max=110, avg=29.98, stdev=19.46 lat (msec): min=6, max=110, avg=29.98, stdev=19.46 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 23], 60.00th=[ 29], | 70.00th=[ 37], 80.00th=[ 46], 90.00th=[ 57], 95.00th=[ 69], | 99.00th=[ 100], 99.50th=[ 104], 99.90th=[ 111], 99.95th=[ 111], | 99.99th=[ 111] bw ( KiB/s): min= 95, max= 766, per=23.47%, avg=296.95, stdev=158.50, samples=39 iops : min= 5, max= 47, avg=18.08, stdev= 9.99, samples=39 lat (msec) : 10=13.02%, 20=38.93%, 50=36.46%, 100=11.07%, 250=0.52% cpu : usr=0.09%, sys=8.46%, ctx=1489, 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=185012: Tue Aug 18 21:54:56 2026 read: IOPS=18, BW=303KiB/s (311kB/s)(6032KiB/19881msec) clat (usec): min=3672, max=84049, avg=22288.85, stdev=16782.19 lat (usec): min=3673, max=84050, avg=22289.78, stdev=16782.15 clat percentiles (usec): | 1.00th=[ 5080], 5.00th=[ 6390], 10.00th=[ 7570], 20.00th=[ 9372], | 30.00th=[11338], 40.00th=[13304], 50.00th=[16057], 60.00th=[19530], | 70.00th=[25297], 80.00th=[32375], 90.00th=[47449], 95.00th=[58983], | 99.00th=[71828], 99.50th=[84411], 99.90th=[84411], 99.95th=[84411], | 99.99th=[84411] bw ( KiB/s): min= 125, max= 832, per=24.66%, avg=296.41, stdev=161.32, samples=39 iops : min= 7, max= 52, avg=18.03, stdev=10.16, samples=39 write: IOPS=19, BW=315KiB/s (322kB/s)(6256KiB/19881msec); 0 zone resets clat (msec): min=7, max=135, avg=29.05, stdev=17.65 lat (msec): min=7, max=135, avg=29.05, stdev=17.65 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 13], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 20], 50.00th=[ 25], 60.00th=[ 29], | 70.00th=[ 35], 80.00th=[ 41], 90.00th=[ 51], 95.00th=[ 63], | 99.00th=[ 102], 99.50th=[ 114], 99.90th=[ 136], 99.95th=[ 136], | 99.99th=[ 136] bw ( KiB/s): min= 95, max= 702, per=24.58%, avg=310.97, stdev=156.56, samples=39 iops : min= 5, max= 43, avg=18.95, stdev= 9.86, samples=39 lat (msec) : 4=0.26%, 10=12.63%, 20=37.50%, 50=39.97%, 100=9.11% lat (msec) : 250=0.52% cpu : usr=0.10%, sys=8.55%, ctx=1485, 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=1202KiB/s (1231kB/s), 289KiB/s-314KiB/s (296kB/s-322kB/s), io=23.4MiB (24.5MB), run=19486-19919msec WRITE: bw=1265KiB/s (1295kB/s), 303KiB/s-330KiB/s (310kB/s-338kB/s), io=24.6MiB (25.8MB), run=19486-19919msec 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=185023: Tue Aug 18 21:55:05 2026 read: IOPS=1, BW=1595KiB/s (1633kB/s)(7168KiB/4495msec) clat (usec): min=482, max=2304.2k, avg=559885.47, stdev=929103.27 lat (usec): min=484, max=2304.2k, avg=559887.11, stdev=929103.70 clat percentiles (usec): | 1.00th=[ 482], 5.00th=[ 482], 10.00th=[ 482], | 20.00th=[ 490], 30.00th=[ 578], 40.00th=[ 578], | 50.00th=[ 83362], 60.00th=[ 99091], 70.00th=[ 99091], | 80.00th=[1434452], 90.00th=[2298479], 95.00th=[2298479], | 99.00th=[2298479], 99.50th=[2298479], 99.90th=[2298479], | 99.95th=[2298479], 99.99th=[2298479] bw ( KiB/s): min= 2031, max= 6131, per=82.37%, avg=3403.33, stdev=2362.24, samples=3 iops : min= 1, max= 5, avg= 2.67, stdev= 2.08, samples=3 write: IOPS=1, BW=1139KiB/s (1166kB/s)(5120KiB/4495msec); 0 zone resets clat (msec): min=84, max=118, avg=106.47, stdev=13.01 lat (msec): min=84, max=118, avg=106.53, stdev=13.01 clat percentiles (msec): | 1.00th=[ 85], 5.00th=[ 85], 10.00th=[ 85], 20.00th=[ 85], | 30.00th=[ 108], 40.00th=[ 108], 50.00th=[ 110], 60.00th=[ 110], | 70.00th=[ 112], 80.00th=[ 112], 90.00th=[ 120], 95.00th=[ 120], | 99.00th=[ 120], 99.50th=[ 120], 99.90th=[ 120], 99.95th=[ 120], | 99.99th=[ 120] bw ( KiB/s): min= 2043, max= 2043, per=35.32%, avg=2043.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (usec) : 500=16.67%, 750=8.33% lat (msec) : 100=25.00%, 250=33.33%, 2000=8.33%, >=2000=8.33% cpu : usr=0.00%, sys=21.87%, ctx=1273, 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=185024: Tue Aug 18 21:55:05 2026 read: IOPS=0, BW=413KiB/s (423kB/s)(2048KiB/4956msec) clat (usec): min=513, max=131860, avg=66187.35, stdev=92876.55 lat (usec): min=514, max=131863, avg=66189.05, stdev=92877.65 clat percentiles (usec): | 1.00th=[ 515], 5.00th=[ 515], 10.00th=[ 515], 20.00th=[ 515], | 30.00th=[ 515], 40.00th=[ 515], 50.00th=[ 515], 60.00th=[131597], | 70.00th=[131597], 80.00th=[131597], 90.00th=[131597], 95.00th=[131597], | 99.00th=[131597], 99.50th=[131597], 99.90th=[131597], 99.95th=[131597], | 99.99th=[131597] bw ( KiB/s): min= 1805, max= 2048, per=46.62%, avg=1926.50, stdev=171.83, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 write: IOPS=2, BW=2066KiB/s (2116kB/s)(10.0MiB/4956msec); 0 zone resets clat (msec): min=93, max=1657, avg=478.53, stdev=547.69 lat (msec): min=93, max=1657, avg=478.60, stdev=547.69 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 94], 10.00th=[ 94], 20.00th=[ 105], | 30.00th=[ 124], 40.00th=[ 138], 50.00th=[ 218], 60.00th=[ 243], | 70.00th=[ 262], 80.00th=[ 735], 90.00th=[ 1217], 95.00th=[ 1653], | 99.00th=[ 1653], 99.50th=[ 1653], 99.90th=[ 1653], 99.95th=[ 1653], | 99.99th=[ 1653] bw ( KiB/s): min= 2031, max= 8192, per=70.60%, avg=4084.25, stdev=2901.51, samples=4 iops : min= 1, max= 8, avg= 3.25, stdev= 3.30, samples=4 lat (usec) : 750=8.33% lat (msec) : 100=8.33%, 250=50.00%, 500=8.33%, 750=8.33%, 2000=16.67% cpu : usr=0.02%, sys=22.64%, ctx=171, 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=185025: Tue Aug 18 21:55:05 2026 read: IOPS=1, BW=1402KiB/s (1436kB/s)(6144KiB/4381msec) clat (usec): min=470, max=211970, avg=111972.59, stdev=95390.16 lat (usec): min=471, max=211971, avg=111973.99, stdev=95390.12 clat percentiles (usec): | 1.00th=[ 469], 5.00th=[ 469], 10.00th=[ 469], 20.00th=[ 553], | 30.00th=[ 553], 40.00th=[101188], 50.00th=[101188], 60.00th=[152044], | 70.00th=[206570], 80.00th=[206570], 90.00th=[212861], 95.00th=[212861], | 99.00th=[212861], 99.50th=[212861], 99.90th=[212861], 99.95th=[212861], | 99.99th=[212861] bw ( KiB/s): min= 4071, max= 4087, per=98.72%, avg=4079.00, stdev=11.31, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1402KiB/s (1436kB/s)(6144KiB/4381msec); 0 zone resets clat (msec): min=103, max=1583, avg=607.36, stdev=657.02 lat (msec): min=103, max=1583, avg=607.44, stdev=656.99 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 104], 10.00th=[ 104], 20.00th=[ 201], | 30.00th=[ 201], 40.00th=[ 205], 50.00th=[ 205], 60.00th=[ 245], | 70.00th=[ 1301], 80.00th=[ 1301], 90.00th=[ 1586], 95.00th=[ 1586], | 99.00th=[ 1586], 99.50th=[ 1586], 99.90th=[ 1586], 99.95th=[ 1586], | 99.99th=[ 1586] bw ( KiB/s): min= 2031, max= 3703, per=42.40%, avg=2453.00, stdev=833.35, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (usec) : 500=8.33%, 750=8.33% lat (msec) : 250=66.67%, 2000=16.67% cpu : usr=0.00%, sys=18.97%, ctx=263, 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=185026: Tue Aug 18 21:55:05 2026 read: IOPS=1, BW=1172KiB/s (1200kB/s)(5120KiB/4368msec) clat (usec): min=507, max=227431, avg=112467.19, stdev=108560.06 lat (usec): min=508, max=227432, avg=112468.25, stdev=108560.11 clat percentiles (usec): | 1.00th=[ 506], 5.00th=[ 506], 10.00th=[ 506], 20.00th=[ 506], | 30.00th=[ 660], 40.00th=[ 660], 50.00th=[128451], 60.00th=[128451], | 70.00th=[204473], 80.00th=[204473], 90.00th=[227541], 95.00th=[227541], | 99.00th=[227541], 99.50th=[227541], 99.90th=[227541], 99.95th=[227541], | 99.99th=[227541] bw ( KiB/s): min= 2035, max= 6131, per=98.81%, avg=4083.00, stdev=2896.31, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=1, BW=1641KiB/s (1680kB/s)(7168KiB/4368msec); 0 zone resets clat (msec): min=99, max=1552, avg=520.40, stdev=622.50 lat (msec): min=99, max=1552, avg=520.47, stdev=622.50 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 100], 10.00th=[ 100], 20.00th=[ 127], | 30.00th=[ 138], 40.00th=[ 138], 50.00th=[ 215], 60.00th=[ 222], | 70.00th=[ 222], 80.00th=[ 1301], 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= 1921, max= 4063, per=46.21%, avg=2673.00, stdev=1205.12, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (usec) : 750=16.67% lat (msec) : 100=8.33%, 250=58.33%, 2000=16.67% cpu : usr=0.00%, sys=23.40%, ctx=467, 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=4132KiB/s (4232kB/s), 413KiB/s-1595KiB/s (423kB/s-1633kB/s), io=20.0MiB (20.0MB), run=4368-4956msec WRITE: bw=5785KiB/s (5924kB/s), 1139KiB/s-2066KiB/s (1166kB/s-2116kB/s), io=28.0MiB (29.4MB), run=4368-4956msec rand-rw: (groupid=0, jobs=1): err= 0: pid=185027: Tue Aug 18 21:55:06 2026 read: IOPS=2, BW=2226KiB/s (2280kB/s)(7168KiB/3220msec) clat (msec): min=70, max=1388, avg=336.98, stdev=477.06 lat (msec): min=70, max=1388, avg=336.99, stdev=477.06 clat percentiles (msec): | 1.00th=[ 70], 5.00th=[ 70], 10.00th=[ 70], 20.00th=[ 74], | 30.00th=[ 89], 40.00th=[ 89], 50.00th=[ 112], 60.00th=[ 257], | 70.00th=[ 257], 80.00th=[ 368], 90.00th=[ 1385], 95.00th=[ 1385], | 99.00th=[ 1385], 99.50th=[ 1385], 99.90th=[ 1385], 99.95th=[ 1385], | 99.99th=[ 1385] bw ( KiB/s): min= 1882, max= 4063, per=61.63%, avg=2501.75, stdev=1043.25, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1590KiB/s (1628kB/s)(5120KiB/3220msec); 0 zone resets clat (msec): min=51, max=338, avg=167.90, stdev=136.33 lat (msec): min=51, max=338, avg=168.00, stdev=136.31 clat percentiles (msec): | 1.00th=[ 52], 5.00th=[ 52], 10.00th=[ 52], 20.00th=[ 52], | 30.00th=[ 74], 40.00th=[ 74], 50.00th=[ 84], 60.00th=[ 84], | 70.00th=[ 292], 80.00th=[ 292], 90.00th=[ 338], 95.00th=[ 338], | 99.00th=[ 338], 99.50th=[ 338], 99.90th=[ 338], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 2031, max= 6144, per=71.93%, avg=4087.50, stdev=2908.33, samples=2 iops : min= 1, max= 6, avg= 3.50, stdev= 3.54, samples=2 lat (msec) : 100=50.00%, 250=8.33%, 500=33.33%, 2000=8.33% cpu : usr=0.00%, sys=9.82%, ctx=95, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=185028: Tue Aug 18 21:55:06 2026 read: IOPS=0, BW=406KiB/s (416kB/s)(2048KiB/5045msec) clat (usec): min=53079, max=55988, avg=54534.08, stdev=2056.83 lat (usec): min=53083, max=55989, avg=54536.55, stdev=2055.06 clat percentiles (usec): | 1.00th=[53216], 5.00th=[53216], 10.00th=[53216], 20.00th=[53216], | 30.00th=[53216], 40.00th=[53216], 50.00th=[53216], 60.00th=[55837], | 70.00th=[55837], 80.00th=[55837], 90.00th=[55837], 95.00th=[55837], | 99.00th=[55837], 99.50th=[55837], 99.90th=[55837], 99.95th=[55837], | 99.99th=[55837] bw ( KiB/s): min= 1910, max= 2048, per=48.76%, avg=1979.00, stdev=97.58, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 write: IOPS=1, BW=2030KiB/s (2078kB/s)(10.0MiB/5045msec); 0 zone resets clat (msec): min=43, max=1882, avg=478.60, stdev=600.04 lat (msec): min=43, max=1882, avg=478.66, stdev=600.05 clat percentiles (msec): | 1.00th=[ 44], 5.00th=[ 44], 10.00th=[ 44], 20.00th=[ 79], | 30.00th=[ 124], 40.00th=[ 146], 50.00th=[ 182], 60.00th=[ 182], | 70.00th=[ 405], 80.00th=[ 567], 90.00th=[ 1183], 95.00th=[ 1888], | 99.00th=[ 1888], 99.50th=[ 1888], 99.90th=[ 1888], 99.95th=[ 1888], | 99.99th=[ 1888] bw ( KiB/s): min= 2048, max= 6144, per=71.82%, avg=4081.75, stdev=1672.43, samples=4 iops : min= 2, max= 6, avg= 3.75, stdev= 1.71, samples=4 lat (msec) : 50=8.33%, 100=25.00%, 250=33.33%, 500=8.33%, 750=8.33% lat (msec) : 2000=16.67% cpu : usr=0.02%, sys=11.60%, ctx=160, 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=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=185029: Tue Aug 18 21:55:06 2026 read: IOPS=1, BW=1225KiB/s (1254kB/s)(6144KiB/5016msec) clat (msec): min=69, max=502, avg=206.53, stdev=158.91 lat (msec): min=69, max=502, avg=206.53, stdev=158.91 clat percentiles (msec): | 1.00th=[ 70], 5.00th=[ 70], 10.00th=[ 70], 20.00th=[ 102], | 30.00th=[ 102], 40.00th=[ 131], 50.00th=[ 131], 60.00th=[ 184], | 70.00th=[ 253], 80.00th=[ 253], 90.00th=[ 502], 95.00th=[ 502], | 99.00th=[ 502], 99.50th=[ 502], 99.90th=[ 502], 99.95th=[ 502], | 99.99th=[ 502] bw ( KiB/s): min= 4096, max= 4096, per=100.00%, avg=4096.00, stdev= 0.00, samples=2 iops : min= 4, max= 4, avg= 4.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1225KiB/s (1254kB/s)(6144KiB/5016msec); 0 zone resets clat (msec): min=60, max=1852, avg=605.33, stdev=753.86 lat (msec): min=60, max=1852, avg=605.40, stdev=753.86 clat percentiles (msec): | 1.00th=[ 62], 5.00th=[ 62], 10.00th=[ 62], 20.00th=[ 123], | 30.00th=[ 123], 40.00th=[ 131], 50.00th=[ 131], 60.00th=[ 234], | 70.00th=[ 1234], 80.00th=[ 1234], 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= 2019, max= 3856, per=46.47%, avg=2641.00, stdev=1052.32, samples=3 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=3 lat (msec) : 100=16.67%, 250=50.00%, 500=8.33%, 750=8.33%, 2000=16.67% cpu : usr=0.02%, sys=6.56%, ctx=101, 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=185030: Tue Aug 18 21:55:06 2026 read: IOPS=1, BW=1032KiB/s (1057kB/s)(5120KiB/4959msec) clat (msec): min=46, max=152, avg=71.77, stdev=45.25 lat (msec): min=46, max=152, avg=71.77, stdev=45.25 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 47], 10.00th=[ 47], 20.00th=[ 47], | 30.00th=[ 50], 40.00th=[ 50], 50.00th=[ 54], 60.00th=[ 54], | 70.00th=[ 58], 80.00th=[ 58], 90.00th=[ 153], 95.00th=[ 153], | 99.00th=[ 153], 99.50th=[ 153], 99.90th=[ 153], 99.95th=[ 153], | 99.99th=[ 153] bw ( KiB/s): min= 8192, max= 8192, per=100.00%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 8, max= 8, avg= 8.00, stdev= 0.00, samples=1 write: IOPS=1, BW=1445KiB/s (1480kB/s)(7168KiB/4959msec); 0 zone resets clat (msec): min=65, max=1769, avg=636.68, stdev=698.86 lat (msec): min=65, max=1769, avg=636.75, stdev=698.86 clat percentiles (msec): | 1.00th=[ 66], 5.00th=[ 66], 10.00th=[ 66], 20.00th=[ 167], | 30.00th=[ 271], 40.00th=[ 271], 50.00th=[ 326], 60.00th=[ 338], | 70.00th=[ 338], 80.00th=[ 1519], 90.00th=[ 1770], 95.00th=[ 1770], | 99.00th=[ 1770], 99.50th=[ 1770], 99.90th=[ 1770], 99.95th=[ 1770], | 99.99th=[ 1770] bw ( KiB/s): min= 1932, max= 4039, per=44.29%, avg=2516.75, stdev=1016.31, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 0.82, samples=4 lat (msec) : 50=16.67%, 100=25.00%, 250=16.67%, 500=25.00%, 2000=16.67% cpu : usr=0.00%, sys=10.49%, ctx=153, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=4059KiB/s (4157kB/s), 406KiB/s-2226KiB/s (416kB/s-2280kB/s), io=20.0MiB (20.0MB), run=3220-5045msec WRITE: bw=5683KiB/s (5820kB/s), 1225KiB/s-2030KiB/s (1254kB/s-2078kB/s), io=28.0MiB (29.4MB), run=3220-5045msec 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=185039: Tue Aug 18 21:55:14 2026 read: IOPS=1, BW=5956KiB/s (6099kB/s)(12.0MiB/2063msec) clat (msec): min=188, max=1049, avg=676.19, stdev=441.86 lat (msec): min=188, max=1049, avg=676.19, stdev=441.86 clat percentiles (msec): | 1.00th=[ 188], 5.00th=[ 188], 10.00th=[ 188], 20.00th=[ 188], | 30.00th=[ 188], 40.00th=[ 793], 50.00th=[ 793], 60.00th=[ 793], | 70.00th=[ 1053], 80.00th=[ 1053], 90.00th=[ 1053], 95.00th=[ 1053], | 99.00th=[ 1053], 99.50th=[ 1053], 99.90th=[ 1053], 99.95th=[ 1053], | 99.99th=[ 1053] bw ( KiB/s): min= 8110, max= 8110, per=100.00%, avg=8110.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=6.40%, ctx=56, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=185041: Tue Aug 18 21:55:14 2026 read: IOPS=0, BW=1781KiB/s (1824kB/s)(4096KiB/2300msec) clat (nsec): min=513513k, max=513513k, avg=513512542.00, stdev= 0.00 lat (nsec): min=513515k, max=513515k, avg=513514614.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 514], 5.00th=[ 514], 10.00th=[ 514], 20.00th=[ 514], | 30.00th=[ 514], 40.00th=[ 514], 50.00th=[ 514], 60.00th=[ 514], | 70.00th=[ 514], 80.00th=[ 514], 90.00th=[ 514], 95.00th=[ 514], | 99.00th=[ 514], 99.50th=[ 514], 99.90th=[ 514], 99.95th=[ 514], | 99.99th=[ 514] bw ( KiB/s): min= 7049, max= 7049, per=98.96%, avg=7049.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3562KiB/s (3647kB/s)(8192KiB/2300msec); 0 zone resets clat (msec): min=772, max=992, avg=882.49, stdev=155.68 lat (msec): min=772, max=992, avg=882.77, stdev=155.53 clat percentiles (msec): | 1.00th=[ 776], 5.00th=[ 776], 10.00th=[ 776], 20.00th=[ 776], | 30.00th=[ 776], 40.00th=[ 776], 50.00th=[ 776], 60.00th=[ 995], | 70.00th=[ 995], 80.00th=[ 995], 90.00th=[ 995], 95.00th=[ 995], | 99.00th=[ 995], 99.50th=[ 995], 99.90th=[ 995], 99.95th=[ 995], | 99.99th=[ 995] bw ( KiB/s): min= 8110, max= 8110, per=56.93%, avg=8110.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=33.33%, 1000=66.67% cpu : usr=0.00%, sys=6.57%, ctx=68, 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=185042: Tue Aug 18 21:55:14 2026 write: IOPS=1, BW=6512KiB/s (6668kB/s)(12.0MiB/1887msec); 0 zone resets clat (msec): min=221, max=843, avg=618.64, stdev=344.69 lat (msec): min=222, max=843, avg=618.99, stdev=344.61 clat percentiles (msec): | 1.00th=[ 222], 5.00th=[ 222], 10.00th=[ 222], 20.00th=[ 222], | 30.00th=[ 222], 40.00th=[ 793], 50.00th=[ 793], 60.00th=[ 793], | 70.00th=[ 844], 80.00th=[ 844], 90.00th=[ 844], 95.00th=[ 844], | 99.00th=[ 844], 99.50th=[ 844], 99.90th=[ 844], 99.95th=[ 844], | 99.99th=[ 844] bw ( KiB/s): min= 8175, max= 8175, per=57.38%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 1000=66.67% cpu : usr=0.11%, sys=6.89%, ctx=46, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=185044: Tue Aug 18 21:55:14 2026 write: IOPS=1, BW=7203KiB/s (7376kB/s)(12.0MiB/1706msec); 0 zone resets clat (msec): min=170, max=783, avg=548.70, stdev=330.84 lat (msec): min=170, max=784, avg=549.07, stdev=330.86 clat percentiles (msec): | 1.00th=[ 171], 5.00th=[ 171], 10.00th=[ 171], 20.00th=[ 171], | 30.00th=[ 171], 40.00th=[ 693], 50.00th=[ 693], 60.00th=[ 693], | 70.00th=[ 785], 80.00th=[ 785], 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= 8110, max= 8175, per=57.16%, avg=8142.50, stdev=45.96, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 250=33.33%, 750=33.33%, 1000=33.33% cpu : usr=0.06%, sys=11.61%, ctx=47, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=7123KiB/s (7294kB/s), 1781KiB/s-5956KiB/s (1824kB/s-6099kB/s), io=16.0MiB (16.8MB), run=2063-2300msec WRITE: bw=13.9MiB/s (14.6MB/s), 3562KiB/s-7203KiB/s (3647kB/s-7376kB/s), io=32.0MiB (33.6MB), run=1706-2300msec rand-rw: (groupid=0, jobs=1): err= 0: pid=185037: Tue Aug 18 21:55:14 2026 read: IOPS=2, BW=8623KiB/s (8830kB/s)(12.0MiB/1425msec) clat (msec): min=445, max=491, avg=462.86, stdev=25.36 lat (msec): min=445, max=491, avg=462.86, stdev=25.36 clat percentiles (msec): | 1.00th=[ 447], 5.00th=[ 447], 10.00th=[ 447], 20.00th=[ 447], | 30.00th=[ 447], 40.00th=[ 451], 50.00th=[ 451], 60.00th=[ 451], | 70.00th=[ 493], 80.00th=[ 493], 90.00th=[ 493], 95.00th=[ 493], | 99.00th=[ 493], 99.50th=[ 493], 99.90th=[ 493], 99.95th=[ 493], | 99.99th=[ 493] bw ( KiB/s): min= 6770, max= 8143, per=97.67%, avg=7456.50, stdev=970.86, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=100.00% cpu : usr=0.07%, sys=37.92%, ctx=1055, 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=185038: Tue Aug 18 21:55:14 2026 read: IOPS=0, BW=1909KiB/s (1954kB/s)(4096KiB/2146msec) clat (nsec): min=544953k, max=544953k, avg=544952899.00, stdev= 0.00 lat (nsec): min=544956k, max=544956k, avg=544955802.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 542], 5.00th=[ 542], 10.00th=[ 542], 20.00th=[ 542], | 30.00th=[ 542], 40.00th=[ 542], 50.00th=[ 542], 60.00th=[ 542], | 70.00th=[ 542], 80.00th=[ 542], 90.00th=[ 542], 95.00th=[ 542], | 99.00th=[ 542], 99.50th=[ 542], 99.90th=[ 542], 99.95th=[ 542], | 99.99th=[ 542] bw ( KiB/s): min= 5953, max= 5953, per=77.98%, avg=5953.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3817KiB/s (3909kB/s)(8192KiB/2146msec); 0 zone resets clat (msec): min=774, max=801, avg=788.07, stdev=19.34 lat (msec): min=778, max=802, avg=790.48, stdev=16.32 clat percentiles (msec): | 1.00th=[ 776], 5.00th=[ 776], 10.00th=[ 776], 20.00th=[ 776], | 30.00th=[ 776], 40.00th=[ 776], 50.00th=[ 776], 60.00th=[ 802], | 70.00th=[ 802], 80.00th=[ 802], 90.00th=[ 802], 95.00th=[ 802], | 99.00th=[ 802], 99.50th=[ 802], 99.90th=[ 802], 99.95th=[ 802], | 99.99th=[ 802] bw ( KiB/s): min= 8078, max= 8078, per=57.49%, avg=8078.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=33.33%, 1000=66.67% cpu : usr=0.00%, sys=11.98%, ctx=558, 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=185040: Tue Aug 18 21:55:14 2026 write: IOPS=1, BW=5269KiB/s (5396kB/s)(12.0MiB/2332msec); 0 zone resets clat (msec): min=135, max=1413, avg=762.05, stdev=639.69 lat (msec): min=135, max=1414, avg=762.37, stdev=639.79 clat percentiles (msec): | 1.00th=[ 136], 5.00th=[ 136], 10.00th=[ 136], 20.00th=[ 136], | 30.00th=[ 136], 40.00th=[ 735], 50.00th=[ 735], 60.00th=[ 735], | 70.00th=[ 1418], 80.00th=[ 1418], 90.00th=[ 1418], 95.00th=[ 1418], | 99.00th=[ 1418], 99.50th=[ 1418], 99.90th=[ 1418], 99.95th=[ 1418], | 99.99th=[ 1418] bw ( KiB/s): min= 8078, max= 8078, per=57.49%, avg=8078.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.00%, sys=8.32%, ctx=63, 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=185043: Tue Aug 18 21:55:14 2026 write: IOPS=1, BW=6285KiB/s (6436kB/s)(12.0MiB/1955msec); 0 zone resets clat (msec): min=171, max=1181, avg=644.79, stdev=507.66 lat (msec): min=172, max=1181, avg=645.11, stdev=507.70 clat percentiles (msec): | 1.00th=[ 171], 5.00th=[ 171], 10.00th=[ 171], 20.00th=[ 171], | 30.00th=[ 171], 40.00th=[ 584], 50.00th=[ 584], 60.00th=[ 584], | 70.00th=[ 1183], 80.00th=[ 1183], 90.00th=[ 1183], 95.00th=[ 1183], | 99.00th=[ 1183], 99.50th=[ 1183], 99.90th=[ 1183], 99.95th=[ 1183], | 99.99th=[ 1183] bw ( KiB/s): min= 6410, max= 6410, per=45.62%, avg=6410.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.05%, sys=12.28%, ctx=62, 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=7635KiB/s (7818kB/s), 1909KiB/s-8623KiB/s (1954kB/s-8830kB/s), io=16.0MiB (16.8MB), run=1425-2146msec WRITE: bw=13.7MiB/s (14.4MB/s), 3817KiB/s-6285KiB/s (3909kB/s-6436kB/s), io=32.0MiB (33.6MB), run=1955-2332msec