== sanity test 398b: DIO and buffer IO race ============== 02:42:20 (1785393740) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 7.56318 s, 6.7 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=143727: Thu Jul 30 02:45:04 2026 read: IOPS=10, BW=42.7KiB/s (43.7kB/s)(5992KiB/140262msec) clat (usec): min=24, max=926749, avg=47104.43, stdev=43158.17 lat (usec): min=24, max=926750, avg=47113.93, stdev=43154.60 clat percentiles (usec): | 1.00th=[ 42], 5.00th=[ 52], 10.00th=[ 116], 20.00th=[ 21103], | 30.00th=[ 27657], 40.00th=[ 33817], 50.00th=[ 40633], 60.00th=[ 48497], | 70.00th=[ 57934], 80.00th=[ 69731], 90.00th=[ 86508], 95.00th=[103285], | 99.00th=[166724], 99.50th=[204473], 99.90th=[446694], 99.95th=[926942], | 99.99th=[926942] bw ( KiB/s): min= 7, max= 119, per=25.29%, avg=42.74, stdev=19.78, samples=272 iops : min= 1, max= 29, avg=10.05, stdev= 4.99, samples=272 write: IOPS=11, BW=44.9KiB/s (45.0kB/s)(6296KiB/140262msec); 0 zone resets clat (usec): min=874, max=370143, avg=43973.90, stdev=46322.73 lat (usec): min=874, max=370144, avg=43983.82, stdev=46337.22 clat percentiles (usec): | 1.00th=[ 1074], 5.00th=[ 1188], 10.00th=[ 1287], 20.00th=[ 3458], | 30.00th=[ 7570], 40.00th=[ 17171], 50.00th=[ 31589], 60.00th=[ 43254], | 70.00th=[ 58459], 80.00th=[ 80217], 90.00th=[107480], 95.00th=[132645], | 99.00th=[193987], 99.50th=[229639], 99.90th=[258999], 99.95th=[371196], | 99.99th=[371196] bw ( KiB/s): min= 7, max= 111, per=25.11%, avg=44.44, stdev=19.52, samples=275 iops : min= 1, max= 27, avg=10.48, stdev= 4.94, samples=275 lat (usec) : 50=1.92%, 100=2.80%, 250=0.20%, 500=0.07%, 750=0.10% lat (usec) : 1000=0.10% lat (msec) : 2=7.85%, 4=3.52%, 10=6.18%, 20=7.75%, 50=32.55% lat (msec) : 100=28.06%, 250=8.66%, 500=0.23%, 1000=0.03% cpu : usr=0.05%, sys=3.86%, ctx=5943, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=143728: Thu Jul 30 02:45:04 2026 read: IOPS=10, BW=41.0KiB/s (42.0kB/s)(5940KiB/141464msec) clat (usec): min=27, max=437743, avg=46898.55, stdev=35527.85 lat (usec): min=27, max=437744, avg=46901.18, stdev=35527.77 clat percentiles (usec): | 1.00th=[ 44], 5.00th=[ 53], 10.00th=[ 82], 20.00th=[ 21103], | 30.00th=[ 28181], 40.00th=[ 34341], 50.00th=[ 40109], 60.00th=[ 47973], | 70.00th=[ 57934], 80.00th=[ 69731], 90.00th=[ 88605], 95.00th=[109577], | 99.00th=[164627], 99.50th=[198181], 99.90th=[256902], 99.95th=[438305], | 99.99th=[438305] bw ( KiB/s): min= 7, max= 111, per=24.69%, avg=41.72, stdev=18.15, samples=276 iops : min= 1, max= 27, avg= 9.79, stdev= 4.58, samples=276 write: IOPS=11, BW=44.9KiB/s (45.9kB/s)(6348KiB/141464msec); 0 zone resets clat (usec): min=933, max=920931, avg=45009.68, stdev=51003.57 lat (usec): min=934, max=920933, avg=45011.39, stdev=51003.48 clat percentiles (usec): | 1.00th=[ 1074], 5.00th=[ 1188], 10.00th=[ 1303], 20.00th=[ 4080], | 30.00th=[ 9503], 40.00th=[ 22152], 50.00th=[ 33817], 60.00th=[ 46400], | 70.00th=[ 57934], 80.00th=[ 76022], 90.00th=[106431], 95.00th=[129500], | 99.00th=[181404], 99.50th=[227541], 99.90th=[467665], 99.95th=[918553], | 99.99th=[918553] bw ( KiB/s): min= 7, max= 119, per=25.00%, avg=44.25, stdev=20.25, samples=277 iops : min= 1, max= 29, avg=10.43, stdev= 5.15, samples=277 lat (usec) : 50=1.66%, 100=3.29%, 250=0.10%, 1000=0.20% lat (msec) : 2=7.32%, 4=2.73%, 10=5.79%, 20=7.55%, 50=34.31% lat (msec) : 100=27.67%, 250=9.08%, 500=0.26%, 1000=0.03% cpu : usr=0.06%, sys=4.06%, ctx=6037, 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=143729: Thu Jul 30 02:45:04 2026 read: IOPS=10, BW=42.8KiB/s (43.9kB/s)(6028KiB/140694msec) clat (usec): min=29, max=283368, avg=44781.82, stdev=32525.90 lat (usec): min=29, max=283370, avg=44782.89, stdev=32525.83 clat percentiles (usec): | 1.00th=[ 44], 5.00th=[ 52], 10.00th=[ 429], 20.00th=[ 20841], | 30.00th=[ 26870], 40.00th=[ 32900], 50.00th=[ 39060], 60.00th=[ 46400], | 70.00th=[ 55313], 80.00th=[ 67634], 90.00th=[ 82314], 95.00th=[103285], | 99.00th=[141558], 99.50th=[185598], 99.90th=[265290], 99.95th=[283116], | 99.99th=[283116] bw ( KiB/s): min= 7, max= 94, per=25.20%, avg=42.58, stdev=18.55, samples=275 iops : min= 1, max= 23, avg=10.01, stdev= 4.70, samples=275 write: IOPS=11, BW=44.5KiB/s (45.6kB/s)(6260KiB/140694msec); 0 zone resets clat (usec): min=798, max=942059, avg=46527.23, stdev=51250.06 lat (usec): min=799, max=942060, avg=46530.91, stdev=51248.36 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1205], 10.00th=[ 1303], 20.00th=[ 4424], | 30.00th=[ 9765], 40.00th=[ 21365], 50.00th=[ 35390], 60.00th=[ 47973], | 70.00th=[ 61604], 80.00th=[ 81265], 90.00th=[105382], 95.00th=[133694], | 99.00th=[200279], 99.50th=[227541], 99.90th=[362808], 99.95th=[943719], | 99.99th=[943719] bw ( KiB/s): min= 7, max= 111, per=24.92%, avg=44.11, stdev=18.76, samples=276 iops : min= 1, max= 27, avg=10.39, stdev= 4.75, samples=276 lat (usec) : 50=1.89%, 100=2.83%, 250=0.16%, 500=0.03%, 750=0.03% lat (usec) : 1000=0.16% lat (msec) : 2=7.23%, 4=2.47%, 10=6.02%, 20=7.65%, 50=34.83% lat (msec) : 100=28.06%, 250=8.43%, 500=0.16%, 1000=0.03% cpu : usr=0.06%, sys=4.16%, ctx=6102, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=143730: Thu Jul 30 02:45:04 2026 read: IOPS=10, BW=43.3KiB/s (44.4kB/s)(6052KiB/139667msec) clat (usec): min=31, max=434136, avg=45179.10, stdev=34105.82 lat (usec): min=31, max=434137, avg=45181.02, stdev=34105.07 clat percentiles (usec): | 1.00th=[ 44], 5.00th=[ 52], 10.00th=[ 85], 20.00th=[ 20317], | 30.00th=[ 27132], 40.00th=[ 32900], 50.00th=[ 38536], 60.00th=[ 45876], | 70.00th=[ 54789], 80.00th=[ 67634], 90.00th=[ 88605], 95.00th=[104334], | 99.00th=[145753], 99.50th=[162530], 99.90th=[270533], 99.95th=[434111], | 99.99th=[434111] bw ( KiB/s): min= 7, max= 111, per=25.44%, avg=42.99, stdev=19.66, samples=274 iops : min= 1, max= 27, avg=10.11, stdev= 4.95, samples=274 write: IOPS=11, BW=44.6KiB/s (45.7kB/s)(6236KiB/139667msec); 0 zone resets clat (usec): min=906, max=913163, avg=45499.11, stdev=51189.02 lat (usec): min=907, max=913164, avg=45500.72, stdev=51189.12 clat percentiles (usec): | 1.00th=[ 1090], 5.00th=[ 1205], 10.00th=[ 1336], 20.00th=[ 4293], | 30.00th=[ 8717], 40.00th=[ 20579], 50.00th=[ 32637], 60.00th=[ 46400], | 70.00th=[ 60031], 80.00th=[ 77071], 90.00th=[108528], 95.00th=[132645], | 99.00th=[198181], 99.50th=[242222], 99.90th=[333448], 99.95th=[910164], | 99.99th=[910164] bw ( KiB/s): min= 7, max= 95, per=25.13%, avg=44.48, stdev=18.27, samples=273 iops : min= 1, max= 23, avg=10.48, stdev= 4.60, samples=273 lat (usec) : 50=1.86%, 100=3.16%, 250=0.13%, 500=0.07%, 1000=0.07% lat (msec) : 2=6.93%, 4=2.90%, 10=6.35%, 20=8.30%, 50=34.24% lat (msec) : 100=26.82%, 250=8.92%, 500=0.23%, 1000=0.03% cpu : usr=0.06%, sys=4.08%, ctx=6106, 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=170KiB/s (174kB/s), 41.0KiB/s-43.3KiB/s (42.0kB/s-44.4kB/s), io=23.4MiB (24.6MB), run=139667-141464msec WRITE: bw=178KiB/s (182kB/s), 44.5KiB/s-44.9KiB/s (45.6kB/s-45.0kB/s), io=24.6MiB (25.7MB), run=139667-141464msec rand-rw: (groupid=0, jobs=1): err= 0: pid=143732: Thu Jul 30 02:48:15 2026 read: IOPS=4, BW=18.1KiB/s (18.5kB/s)(5992KiB/331615msec) clat (msec): min=4, max=1061, avg=40.85, stdev=45.61 lat (msec): min=4, max=1061, avg=40.85, stdev=45.61 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 14], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 24], 50.00th=[ 29], 60.00th=[ 33], | 70.00th=[ 42], 80.00th=[ 53], 90.00th=[ 86], 95.00th=[ 116], | 99.00th=[ 184], 99.50th=[ 234], 99.90th=[ 338], 99.95th=[ 1062], | 99.99th=[ 1062] bw ( KiB/s): min= 7, max= 87, per=29.85%, avg=21.49, stdev=14.21, samples=536 iops : min= 1, max= 21, avg= 4.75, stdev= 3.57, samples=536 write: IOPS=4, BW=18.0KiB/s (19.4kB/s)(6296KiB/331615msec); 0 zone resets clat (msec): min=38, max=633, avg=171.73, stdev=70.06 lat (msec): min=38, max=633, avg=171.73, stdev=70.07 clat percentiles (msec): | 1.00th=[ 55], 5.00th=[ 82], 10.00th=[ 93], 20.00th=[ 113], | 30.00th=[ 131], 40.00th=[ 146], 50.00th=[ 163], 60.00th=[ 178], | 70.00th=[ 199], 80.00th=[ 226], 90.00th=[ 262], 95.00th=[ 296], | 99.00th=[ 380], 99.50th=[ 418], 99.90th=[ 531], 99.95th=[ 634], | 99.99th=[ 634] bw ( KiB/s): min= 7, max= 48, per=24.74%, avg=18.56, stdev= 7.90, samples=648 iops : min= 1, max= 12, avg= 4.01, stdev= 2.03, samples=648 lat (msec) : 10=1.92%, 20=12.40%, 50=24.22%, 100=13.64%, 250=41.50% lat (msec) : 500=6.12%, 750=0.16%, 2000=0.03% cpu : usr=0.02%, sys=0.94%, ctx=4864, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=143733: Thu Jul 30 02:48:15 2026 read: IOPS=4, BW=17.9KiB/s (18.3kB/s)(5940KiB/331772msec) clat (msec): min=5, max=982, avg=41.88, stdev=47.38 lat (msec): min=5, max=982, avg=41.88, stdev=47.38 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 24], 50.00th=[ 28], 60.00th=[ 33], | 70.00th=[ 41], 80.00th=[ 58], 90.00th=[ 89], 95.00th=[ 117], | 99.00th=[ 211], 99.50th=[ 247], 99.90th=[ 506], 99.95th=[ 986], | 99.99th=[ 986] bw ( KiB/s): min= 7, max= 87, per=30.22%, avg=21.76, stdev=14.29, samples=524 iops : min= 1, max= 21, avg= 4.81, stdev= 3.62, samples=524 write: IOPS=4, BW=19.1KiB/s (19.6kB/s)(6348KiB/331772msec); 0 zone resets clat (msec): min=37, max=522, avg=169.77, stdev=66.33 lat (msec): min=37, max=522, avg=169.78, stdev=66.33 clat percentiles (msec): | 1.00th=[ 55], 5.00th=[ 81], 10.00th=[ 92], 20.00th=[ 114], | 30.00th=[ 130], 40.00th=[ 144], 50.00th=[ 161], 60.00th=[ 178], | 70.00th=[ 197], 80.00th=[ 222], 90.00th=[ 262], 95.00th=[ 292], | 99.00th=[ 368], 99.50th=[ 405], 99.90th=[ 439], 99.95th=[ 523], | 99.99th=[ 523] bw ( KiB/s): min= 7, max= 48, per=25.05%, avg=18.79, stdev= 7.97, samples=645 iops : min= 1, max= 12, avg= 4.07, stdev= 2.04, samples=645 lat (msec) : 10=1.86%, 20=12.76%, 50=22.82%, 100=13.83%, 250=42.38% lat (msec) : 500=6.25%, 750=0.07%, 1000=0.03% cpu : usr=0.03%, sys=0.94%, ctx=4864, 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=143734: Thu Jul 30 02:48:15 2026 read: IOPS=4, BW=18.2KiB/s (18.6kB/s)(6028KiB/332001msec) clat (msec): min=4, max=424, avg=41.92, stdev=41.55 lat (msec): min=4, max=424, avg=41.92, stdev=41.55 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 14], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 25], 50.00th=[ 29], 60.00th=[ 35], | 70.00th=[ 43], 80.00th=[ 58], 90.00th=[ 83], 95.00th=[ 123], | 99.00th=[ 220], 99.50th=[ 268], 99.90th=[ 384], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 7, max= 71, per=28.76%, avg=20.71, stdev=13.74, samples=557 iops : min= 1, max= 17, avg= 4.55, stdev= 3.44, samples=557 write: IOPS=4, BW=18.9KiB/s (19.3kB/s)(6260KiB/332001msec); 0 zone resets clat (msec): min=42, max=1073, avg=171.69, stdev=71.44 lat (msec): min=42, max=1073, avg=171.69, stdev=71.44 clat percentiles (msec): | 1.00th=[ 60], 5.00th=[ 84], 10.00th=[ 96], 20.00th=[ 116], | 30.00th=[ 132], 40.00th=[ 144], 50.00th=[ 161], 60.00th=[ 178], | 70.00th=[ 197], 80.00th=[ 222], 90.00th=[ 262], 95.00th=[ 300], | 99.00th=[ 372], 99.50th=[ 422], 99.90th=[ 642], 99.95th=[ 1070], | 99.99th=[ 1070] bw ( KiB/s): min= 7, max= 48, per=24.60%, avg=18.45, stdev= 7.77, samples=646 iops : min= 1, max= 12, avg= 3.98, stdev= 2.00, samples=646 lat (msec) : 10=1.86%, 20=12.34%, 50=22.92%, 100=14.42%, 250=41.67% lat (msec) : 500=6.71%, 750=0.07%, 2000=0.03% cpu : usr=0.02%, sys=0.95%, ctx=4826, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=143735: Thu Jul 30 02:48:15 2026 read: IOPS=4, BW=18.2KiB/s (18.7kB/s)(6052KiB/332158msec) clat (msec): min=5, max=428, avg=41.74, stdev=40.81 lat (msec): min=5, max=428, avg=41.74, stdev=40.81 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 20], 40.00th=[ 24], 50.00th=[ 28], 60.00th=[ 34], | 70.00th=[ 43], 80.00th=[ 60], 90.00th=[ 90], 95.00th=[ 127], | 99.00th=[ 194], 99.50th=[ 266], 99.90th=[ 363], 99.95th=[ 430], | 99.99th=[ 430] bw ( KiB/s): min= 7, max= 95, per=30.32%, avg=21.83, stdev=14.92, samples=533 iops : min= 1, max= 23, avg= 4.83, stdev= 3.75, samples=533 write: IOPS=4, BW=18.8KiB/s (19.2kB/s)(6236KiB/332158msec); 0 zone resets clat (msec): min=39, max=1172, avg=172.47, stdev=74.31 lat (msec): min=39, max=1172, avg=172.47, stdev=74.31 clat percentiles (msec): | 1.00th=[ 56], 5.00th=[ 79], 10.00th=[ 93], 20.00th=[ 112], | 30.00th=[ 129], 40.00th=[ 146], 50.00th=[ 163], 60.00th=[ 180], | 70.00th=[ 201], 80.00th=[ 226], 90.00th=[ 262], 95.00th=[ 300], | 99.00th=[ 393], 99.50th=[ 435], 99.90th=[ 523], 99.95th=[ 1167], | 99.99th=[ 1167] bw ( KiB/s): min= 7, max= 48, per=24.67%, avg=18.50, stdev= 7.95, samples=643 iops : min= 1, max= 12, avg= 4.00, stdev= 2.04, samples=643 lat (msec) : 10=2.25%, 20=13.18%, 50=21.94%, 100=14.65%, 250=41.54% lat (msec) : 500=6.35%, 750=0.07%, 2000=0.03% cpu : usr=0.03%, sys=0.92%, ctx=4854, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=72.3KiB/s (74.0kB/s), 17.9KiB/s-18.2KiB/s (18.3kB/s-18.7kB/s), io=23.4MiB (24.6MB), run=331615-332158msec WRITE: bw=75.7KiB/s (77.5kB/s), 18.8KiB/s-19.1KiB/s (19.2kB/s-19.6kB/s), io=24.6MiB (25.7MB), run=331615-332158msec 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=143804: Thu Jul 30 02:49:11 2026 read: IOPS=9, BW=147KiB/s (150kB/s)(5920KiB/40313msec) clat (usec): min=37, max=413703, avg=54913.16, stdev=49533.29 lat (usec): min=37, max=413704, avg=54914.32, stdev=49533.28 clat percentiles (usec): | 1.00th=[ 41], 5.00th=[ 52], 10.00th=[ 56], 20.00th=[ 155], | 30.00th=[ 27395], 40.00th=[ 35914], 50.00th=[ 48497], 60.00th=[ 60556], | 70.00th=[ 71828], 80.00th=[ 86508], 90.00th=[113771], 95.00th=[139461], | 99.00th=[210764], 99.50th=[299893], 99.90th=[413139], 99.95th=[413139], | 99.99th=[413139] bw ( KiB/s): min= 29, max= 347, per=27.11%, avg=151.25, stdev=69.95, samples=76 iops : min= 1, max= 21, avg= 8.70, stdev= 4.45, samples=76 write: IOPS=9, BW=158KiB/s (162kB/s)(6368KiB/40313msec); 0 zone resets clat (usec): min=1333, max=827578, avg=50079.59, stdev=66354.54 lat (usec): min=1349, max=827581, avg=50082.01, stdev=66354.55 clat percentiles (usec): | 1.00th=[ 1434], 5.00th=[ 1631], 10.00th=[ 1860], 20.00th=[ 6128], | 30.00th=[ 10552], 40.00th=[ 16909], 50.00th=[ 29230], 60.00th=[ 45876], | 70.00th=[ 63177], 80.00th=[ 82314], 90.00th=[117965], 95.00th=[162530], | 99.00th=[270533], 99.50th=[337642], 99.90th=[826278], 99.95th=[826278], | 99.99th=[826278] bw ( KiB/s): min= 30, max= 378, per=26.96%, avg=158.27, stdev=70.53, samples=78 iops : min= 1, max= 23, avg= 9.15, stdev= 4.48, samples=78 lat (usec) : 50=1.69%, 100=7.55%, 250=0.52% lat (msec) : 2=6.25%, 4=1.95%, 10=7.42%, 20=7.68%, 50=23.70% lat (msec) : 100=28.65%, 250=13.54%, 500=0.91%, 1000=0.13% cpu : usr=0.03%, sys=3.66%, ctx=1324, 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=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=143805: Thu Jul 30 02:49:11 2026 read: IOPS=8, BW=134KiB/s (137kB/s)(5744KiB/42878msec) clat (usec): min=33, max=418081, avg=62646.79, stdev=58392.48 lat (usec): min=33, max=418083, avg=62647.90, stdev=58392.51 clat percentiles (usec): | 1.00th=[ 40], 5.00th=[ 50], 10.00th=[ 56], 20.00th=[ 97], | 30.00th=[ 31065], 40.00th=[ 43779], 50.00th=[ 55837], 60.00th=[ 67634], | 70.00th=[ 80217], 80.00th=[102237], 90.00th=[125305], 95.00th=[158335], | 99.00th=[274727], 99.50th=[396362], 99.90th=[417334], 99.95th=[417334], | 99.99th=[417334] bw ( KiB/s): min= 22, max= 286, per=24.85%, avg=138.65, stdev=70.61, samples=80 iops : min= 1, max= 17, avg= 7.91, stdev= 4.54, samples=80 write: IOPS=9, BW=153KiB/s (156kB/s)(6544KiB/42878msec); 0 zone resets clat (usec): min=1357, max=426665, avg=48879.51, stdev=58091.02 lat (usec): min=1366, max=426667, avg=48882.27, stdev=58090.94 clat percentiles (usec): | 1.00th=[ 1483], 5.00th=[ 1680], 10.00th=[ 1926], 20.00th=[ 6063], | 30.00th=[ 10683], 40.00th=[ 17957], 50.00th=[ 31327], 60.00th=[ 43254], | 70.00th=[ 58459], 80.00th=[ 82314], 90.00th=[116917], 95.00th=[164627], | 99.00th=[274727], 99.50th=[295699], 99.90th=[425722], 99.95th=[425722], | 99.99th=[425722] bw ( KiB/s): min= 22, max= 352, per=26.80%, avg=157.32, stdev=80.00, samples=81 iops : min= 1, max= 22, avg= 9.07, stdev= 5.05, samples=81 lat (usec) : 50=2.34%, 100=7.03%, 250=0.13%, 500=0.13%, 750=0.13% lat (msec) : 2=5.86%, 4=2.86%, 10=7.16%, 20=7.94%, 50=22.53% lat (msec) : 100=26.17%, 250=16.02%, 500=1.69% cpu : usr=0.04%, sys=3.31%, ctx=1363, 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=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=143806: Thu Jul 30 02:49:11 2026 read: IOPS=9, BW=153KiB/s (157kB/s)(6256KiB/40893msec) clat (usec): min=32, max=440643, avg=57301.65, stdev=49532.78 lat (usec): min=32, max=440643, avg=57302.79, stdev=49532.78 clat percentiles (usec): | 1.00th=[ 41], 5.00th=[ 52], 10.00th=[ 55], 20.00th=[ 6652], | 30.00th=[ 32637], 40.00th=[ 41681], 50.00th=[ 52691], 60.00th=[ 62129], | 70.00th=[ 72877], 80.00th=[ 85459], 90.00th=[112722], 95.00th=[131597], | 99.00th=[240124], 99.50th=[258999], 99.90th=[442500], 99.95th=[442500], | 99.99th=[442500] bw ( KiB/s): min= 30, max= 350, per=27.86%, avg=155.45, stdev=69.01, samples=78 iops : min= 1, max= 21, avg= 8.96, stdev= 4.33, samples=78 write: IOPS=9, BW=148KiB/s (151kB/s)(6032KiB/40893msec); 0 zone resets clat (usec): min=1323, max=809016, avg=48134.61, stdev=71907.82 lat (usec): min=1326, max=809017, avg=48136.78, stdev=71907.82 clat percentiles (usec): | 1.00th=[ 1418], 5.00th=[ 1647], 10.00th=[ 2057], 20.00th=[ 6849], | 30.00th=[ 10159], 40.00th=[ 16188], 50.00th=[ 23725], 60.00th=[ 35390], | 70.00th=[ 51643], 80.00th=[ 73925], 90.00th=[117965], 95.00th=[175113], | 99.00th=[333448], 99.50th=[509608], 99.90th=[809501], 99.95th=[809501], | 99.99th=[809501] bw ( KiB/s): min= 31, max= 387, per=25.45%, avg=149.42, stdev=73.98, samples=77 iops : min= 1, max= 24, avg= 8.58, stdev= 4.71, samples=77 lat (usec) : 50=1.95%, 100=7.94% lat (msec) : 2=4.82%, 4=1.17%, 10=8.85%, 20=8.07%, 50=25.39% lat (msec) : 100=28.39%, 250=12.37%, 500=0.78%, 750=0.13%, 1000=0.13% cpu : usr=0.05%, sys=3.51%, ctx=1297, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=143807: Thu Jul 30 02:49:11 2026 read: IOPS=9, BW=151KiB/s (155kB/s)(6032KiB/39920msec) clat (usec): min=26, max=644691, avg=56667.77, stdev=58256.07 lat (usec): min=26, max=644692, avg=56680.07, stdev=58249.86 clat percentiles (usec): | 1.00th=[ 39], 5.00th=[ 54], 10.00th=[ 58], 20.00th=[ 85], | 30.00th=[ 28967], 40.00th=[ 38536], 50.00th=[ 47449], 60.00th=[ 55313], | 70.00th=[ 68682], 80.00th=[ 84411], 90.00th=[124257], 95.00th=[166724], | 99.00th=[225444], 99.50th=[278922], 99.90th=[641729], 99.95th=[641729], | 99.99th=[641729] bw ( KiB/s): min= 31, max= 318, per=27.28%, avg=152.21, stdev=68.80, samples=76 iops : min= 1, max= 19, avg= 8.75, stdev= 4.34, samples=76 write: IOPS=9, BW=157KiB/s (160kB/s)(6256KiB/39920msec); 0 zone resets clat (usec): min=1361, max=255964, avg=46261.06, stdev=49579.69 lat (usec): min=1362, max=255966, avg=46324.65, stdev=49554.28 clat percentiles (usec): | 1.00th=[ 1549], 5.00th=[ 1696], 10.00th=[ 2606], 20.00th=[ 6521], | 30.00th=[ 10683], 40.00th=[ 18220], 50.00th=[ 27657], 60.00th=[ 41157], | 70.00th=[ 58983], 80.00th=[ 83362], 90.00th=[112722], 95.00th=[149947], | 99.00th=[212861], 99.50th=[238027], 99.90th=[256902], 99.95th=[256902], | 99.99th=[256902] bw ( KiB/s): min= 30, max= 349, per=27.06%, avg=158.82, stdev=75.04, samples=76 iops : min= 1, max= 21, avg= 9.16, stdev= 4.74, samples=76 lat (usec) : 50=1.43%, 100=8.85%, 250=0.39% lat (msec) : 2=4.82%, 4=1.95%, 10=7.42%, 20=8.33%, 50=26.30% lat (msec) : 100=26.95%, 250=13.15%, 500=0.26%, 750=0.13% cpu : usr=0.06%, sys=3.64%, ctx=1261, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=559KiB/s (572kB/s), 134KiB/s-153KiB/s (137kB/s-157kB/s), io=23.4MiB (24.5MB), run=39920-42878msec WRITE: bw=588KiB/s (602kB/s), 148KiB/s-158KiB/s (151kB/s-162kB/s), io=24.6MiB (25.8MB), run=39920-42878msec rand-rw: (groupid=0, jobs=1): err= 0: pid=143808: Thu Jul 30 02:49:55 2026 read: IOPS=4, BW=68.4KiB/s (70.1kB/s)(5920KiB/86530msec) clat (msec): min=5, max=560, avg=53.72, stdev=63.45 lat (msec): min=5, max=560, avg=53.73, stdev=63.45 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 15], 20.00th=[ 18], | 30.00th=[ 22], 40.00th=[ 26], 50.00th=[ 32], 60.00th=[ 40], | 70.00th=[ 50], 80.00th=[ 72], 90.00th=[ 122], 95.00th=[ 190], | 99.00th=[ 292], 99.50th=[ 498], 99.90th=[ 558], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 28, max= 224, per=28.93%, avg=79.84, stdev=50.48, samples=145 iops : min= 1, max= 14, avg= 4.25, stdev= 3.22, samples=145 write: IOPS=4, BW=73.6KiB/s (75.4kB/s)(6368KiB/86530msec); 0 zone resets clat (msec): min=46, max=654, avg=166.32, stdev=87.49 lat (msec): min=46, max=654, avg=166.33, stdev=87.49 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 71], 10.00th=[ 82], 20.00th=[ 101], | 30.00th=[ 117], 40.00th=[ 131], 50.00th=[ 148], 60.00th=[ 163], | 70.00th=[ 184], 80.00th=[ 218], 90.00th=[ 288], 95.00th=[ 342], | 99.00th=[ 460], 99.50th=[ 642], 99.90th=[ 651], 99.95th=[ 651], | 99.99th=[ 651] bw ( KiB/s): min= 27, max= 191, per=26.75%, avg=77.84, stdev=37.00, samples=160 iops : min= 1, max= 11, avg= 4.11, stdev= 2.42, samples=160 lat (msec) : 10=1.30%, 20=11.59%, 50=21.61%, 100=17.58%, 250=39.84% lat (msec) : 500=7.68%, 750=0.39% cpu : usr=0.02%, sys=1.01%, ctx=1272, 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=143809: Thu Jul 30 02:49:55 2026 read: IOPS=4, BW=66.4KiB/s (67.0kB/s)(5744KiB/86501msec) clat (msec): min=6, max=465, avg=50.89, stdev=59.97 lat (msec): min=6, max=465, avg=50.90, stdev=59.97 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 22], 40.00th=[ 25], 50.00th=[ 30], 60.00th=[ 37], | 70.00th=[ 44], 80.00th=[ 65], 90.00th=[ 113], 95.00th=[ 176], | 99.00th=[ 279], 99.50th=[ 439], 99.90th=[ 464], 99.95th=[ 464], | 99.99th=[ 464] bw ( KiB/s): min= 27, max= 351, per=31.24%, avg=86.23, stdev=57.49, samples=131 iops : min= 1, max= 21, avg= 4.65, stdev= 3.63, samples=131 write: IOPS=4, BW=75.7KiB/s (77.5kB/s)(6544KiB/86501msec); 0 zone resets clat (msec): min=48, max=1057, avg=166.33, stdev=101.25 lat (msec): min=48, max=1057, avg=166.34, stdev=101.25 clat percentiles (msec): | 1.00th=[ 53], 5.00th=[ 68], 10.00th=[ 78], 20.00th=[ 97], | 30.00th=[ 114], 40.00th=[ 126], 50.00th=[ 142], 60.00th=[ 161], | 70.00th=[ 182], 80.00th=[ 209], 90.00th=[ 288], 95.00th=[ 351], | 99.00th=[ 498], 99.50th=[ 600], 99.90th=[ 1062], 99.95th=[ 1062], | 99.99th=[ 1062] bw ( KiB/s): min= 27, max= 223, per=27.86%, avg=81.07, stdev=39.34, samples=158 iops : min= 1, max= 13, avg= 4.31, stdev= 2.57, samples=158 lat (msec) : 10=1.69%, 20=10.81%, 50=22.66%, 100=17.45%, 250=39.06% lat (msec) : 500=7.81%, 750=0.39%, 2000=0.13% cpu : usr=0.02%, sys=0.96%, ctx=1257, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=143810: Thu Jul 30 02:49:55 2026 read: IOPS=4, BW=73.6KiB/s (75.3kB/s)(6256KiB/85055msec) clat (msec): min=5, max=539, avg=51.47, stdev=61.97 lat (msec): min=5, max=539, avg=51.47, stdev=61.97 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 12], 10.00th=[ 15], 20.00th=[ 18], | 30.00th=[ 22], 40.00th=[ 27], 50.00th=[ 32], 60.00th=[ 39], | 70.00th=[ 50], 80.00th=[ 64], 90.00th=[ 107], 95.00th=[ 165], | 99.00th=[ 334], 99.50th=[ 489], 99.90th=[ 542], 99.95th=[ 542], | 99.99th=[ 542] bw ( KiB/s): min= 27, max= 256, per=33.25%, avg=91.76, stdev=59.69, samples=134 iops : min= 1, max= 16, avg= 4.99, stdev= 3.85, samples=134 write: IOPS=4, BW=70.9KiB/s (72.6kB/s)(6032KiB/85055msec); 0 zone resets clat (msec): min=43, max=999, avg=171.10, stdev=102.04 lat (msec): min=43, max=999, avg=171.10, stdev=102.04 clat percentiles (msec): | 1.00th=[ 53], 5.00th=[ 67], 10.00th=[ 83], 20.00th=[ 101], | 30.00th=[ 114], 40.00th=[ 130], 50.00th=[ 148], 60.00th=[ 167], | 70.00th=[ 190], 80.00th=[ 220], 90.00th=[ 296], 95.00th=[ 351], | 99.00th=[ 575], 99.50th=[ 634], 99.90th=[ 1003], 99.95th=[ 1003], | 99.99th=[ 1003] bw ( KiB/s): min= 27, max= 192, per=25.48%, avg=74.14, stdev=38.01, samples=159 iops : min= 1, max= 12, avg= 3.87, stdev= 2.48, samples=159 lat (msec) : 10=1.69%, 20=11.46%, 50=23.44%, 100=18.23%, 250=36.72% lat (msec) : 500=7.68%, 750=0.65%, 1000=0.13% cpu : usr=0.03%, sys=0.97%, ctx=1231, 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=143811: Thu Jul 30 02:49:55 2026 read: IOPS=4, BW=69.8KiB/s (71.5kB/s)(6032KiB/86407msec) clat (msec): min=6, max=426, avg=51.71, stdev=58.40 lat (msec): min=6, max=426, avg=51.72, stdev=58.40 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 26], 50.00th=[ 31], 60.00th=[ 38], | 70.00th=[ 45], 80.00th=[ 72], 90.00th=[ 126], 95.00th=[ 167], | 99.00th=[ 313], 99.50th=[ 372], 99.90th=[ 426], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 30, max= 255, per=32.24%, avg=88.98, stdev=53.40, samples=133 iops : min= 1, max= 15, avg= 4.84, stdev= 3.38, samples=133 write: IOPS=4, BW=72.4KiB/s (74.1kB/s)(6256KiB/86407msec); 0 zone resets clat (msec): min=45, max=957, avg=169.94, stdev=95.95 lat (msec): min=45, max=957, avg=169.95, stdev=95.95 clat percentiles (msec): | 1.00th=[ 56], 5.00th=[ 69], 10.00th=[ 85], 20.00th=[ 104], | 30.00th=[ 117], 40.00th=[ 132], 50.00th=[ 144], 60.00th=[ 167], | 70.00th=[ 188], 80.00th=[ 220], 90.00th=[ 288], 95.00th=[ 347], | 99.00th=[ 481], 99.50th=[ 718], 99.90th=[ 961], 99.95th=[ 961], | 99.99th=[ 961] bw ( KiB/s): min= 27, max= 222, per=26.24%, avg=76.37, stdev=38.64, samples=161 iops : min= 1, max= 13, avg= 4.01, stdev= 2.49, samples=161 lat (msec) : 10=1.17%, 20=13.02%, 50=21.48%, 100=16.02%, 250=40.36% lat (msec) : 500=7.55%, 750=0.26%, 1000=0.13% cpu : usr=0.03%, sys=0.90%, ctx=1131, 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=277KiB/s (283kB/s), 66.4KiB/s-73.6KiB/s (67.0kB/s-75.3kB/s), io=23.4MiB (24.5MB), run=85055-86530msec WRITE: bw=291KiB/s (298kB/s), 70.9KiB/s-75.7KiB/s (72.6kB/s-77.5kB/s), io=24.6MiB (25.8MB), run=85055-86530msec 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=143830: Thu Jul 30 02:50:10 2026 read: IOPS=1, BW=1835KiB/s (1879kB/s)(7168KiB/3906msec) clat (msec): min=8, max=1404, avg=380.66, stdev=461.74 lat (msec): min=8, max=1404, avg=380.66, stdev=461.74 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 9], 10.00th=[ 9], 20.00th=[ 207], | 30.00th=[ 213], 40.00th=[ 213], 50.00th=[ 247], 60.00th=[ 284], | 70.00th=[ 284], 80.00th=[ 305], 90.00th=[ 1401], 95.00th=[ 1401], | 99.00th=[ 1401], 99.50th=[ 1401], 99.90th=[ 1401], 99.95th=[ 1401], | 99.99th=[ 1401] bw ( KiB/s): min= 2015, max= 3624, per=56.89%, avg=2350.60, stdev=711.96, samples=5 iops : min= 1, max= 3, avg= 1.60, stdev= 0.89, samples=5 write: IOPS=1, BW=1311KiB/s (1342kB/s)(5120KiB/3906msec); 0 zone resets clat (msec): min=80, max=353, avg=219.52, stdev=109.60 lat (msec): min=80, max=353, avg=219.58, stdev=109.58 clat percentiles (msec): | 1.00th=[ 82], 5.00th=[ 82], 10.00th=[ 82], 20.00th=[ 82], | 30.00th=[ 180], 40.00th=[ 180], 50.00th=[ 180], 60.00th=[ 180], | 70.00th=[ 305], 80.00th=[ 305], 90.00th=[ 355], 95.00th=[ 355], | 99.00th=[ 355], 99.50th=[ 355], 99.90th=[ 355], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 1812, max= 4055, per=45.61%, avg=2638.33, stdev=1232.53, samples=3 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=3 lat (msec) : 10=8.33%, 100=8.33%, 250=41.67%, 500=33.33%, 2000=8.33% cpu : usr=0.00%, sys=9.68%, ctx=261, 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=143832: Thu Jul 30 02:50:10 2026 read: IOPS=0, BW=413KiB/s (423kB/s)(2048KiB/4956msec) clat (msec): min=164, max=233, avg=198.70, stdev=48.64 lat (msec): min=164, max=233, avg=198.70, stdev=48.64 clat percentiles (msec): | 1.00th=[ 165], 5.00th=[ 165], 10.00th=[ 165], 20.00th=[ 165], | 30.00th=[ 165], 40.00th=[ 165], 50.00th=[ 165], 60.00th=[ 234], | 70.00th=[ 234], 80.00th=[ 234], 90.00th=[ 234], 95.00th=[ 234], | 99.00th=[ 234], 99.50th=[ 234], 99.90th=[ 234], 99.95th=[ 234], | 99.99th=[ 234] bw ( KiB/s): min= 1530, max= 2035, per=43.14%, avg=1782.50, stdev=357.09, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2066KiB/s (2116kB/s)(10.0MiB/4956msec); 0 zone resets clat (msec): min=80, max=1942, avg=448.35, stdev=577.02 lat (msec): min=80, max=1942, avg=448.42, stdev=577.01 clat percentiles (msec): | 1.00th=[ 81], 5.00th=[ 81], 10.00th=[ 81], 20.00th=[ 87], | 30.00th=[ 115], 40.00th=[ 167], 50.00th=[ 213], 60.00th=[ 257], | 70.00th=[ 284], 80.00th=[ 464], 90.00th=[ 877], 95.00th=[ 1938], | 99.00th=[ 1938], 99.50th=[ 1938], 99.90th=[ 1938], 99.95th=[ 1938], | 99.99th=[ 1938] bw ( KiB/s): min= 2027, max= 8192, per=79.46%, avg=4596.50, stdev=3073.70, samples=4 iops : min= 1, max= 8, avg= 4.00, stdev= 3.16, samples=4 lat (msec) : 100=16.67%, 250=41.67%, 500=25.00%, 1000=8.33%, 2000=8.33% cpu : usr=0.00%, sys=8.15%, ctx=83, 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=143833: Thu Jul 30 02:50:10 2026 read: IOPS=1, BW=1442KiB/s (1476kB/s)(6144KiB/4262msec) clat (usec): min=307, max=250157, avg=113259.64, stdev=125397.13 lat (usec): min=308, max=250158, avg=113260.70, stdev=125397.43 clat percentiles (usec): | 1.00th=[ 306], 5.00th=[ 306], 10.00th=[ 306], 20.00th=[ 359], | 30.00th=[ 359], 40.00th=[ 660], 50.00th=[ 660], 60.00th=[187696], | 70.00th=[240124], 80.00th=[240124], 90.00th=[250610], 95.00th=[250610], | 99.00th=[250610], 99.50th=[250610], 99.90th=[250610], 99.95th=[250610], | 99.99th=[250610] bw ( KiB/s): min= 2048, max= 8110, per=100.00%, avg=5079.00, stdev=4286.48, samples=2 iops : min= 2, max= 7, avg= 4.50, stdev= 3.54, samples=2 write: IOPS=1, BW=1442KiB/s (1476kB/s)(6144KiB/4262msec); 0 zone resets clat (msec): min=140, max=1739, avg=580.45, stdev=578.66 lat (msec): min=140, max=1739, avg=581.06, stdev=578.52 clat percentiles (msec): | 1.00th=[ 140], 5.00th=[ 140], 10.00th=[ 140], 20.00th=[ 351], | 30.00th=[ 351], 40.00th=[ 372], 50.00th=[ 372], 60.00th=[ 430], | 70.00th=[ 451], 80.00th=[ 451], 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= 1825, max= 2048, per=34.58%, avg=2000.17, stdev=86.18, samples=6 iops : min= 1, max= 2, avg= 1.17, stdev= 0.41, samples=6 lat (usec) : 500=16.67%, 750=8.33% lat (msec) : 250=25.00%, 500=41.67%, 2000=8.33% cpu : usr=0.00%, sys=5.94%, ctx=121, 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=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=143834: Thu Jul 30 02:50:10 2026 read: IOPS=1, BW=1240KiB/s (1269kB/s)(5120KiB/4130msec) clat (usec): min=296, max=195878, avg=78520.98, stdev=106880.73 lat (usec): min=297, max=195879, avg=78522.05, stdev=106880.87 clat percentiles (usec): | 1.00th=[ 297], 5.00th=[ 297], 10.00th=[ 297], 20.00th=[ 297], | 30.00th=[ 437], 40.00th=[ 437], 50.00th=[ 668], 60.00th=[ 668], | 70.00th=[196084], 80.00th=[196084], 90.00th=[196084], 95.00th=[196084], | 99.00th=[196084], 99.50th=[196084], 99.90th=[196084], 99.95th=[196084], | 99.99th=[196084] bw ( KiB/s): min= 8110, max= 8110, per=100.00%, avg=8110.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=1, BW=1736KiB/s (1777kB/s)(7168KiB/4130msec); 0 zone resets clat (msec): min=163, max=1636, avg=530.62, stdev=507.29 lat (msec): min=163, max=1636, avg=530.67, stdev=507.30 clat percentiles (msec): | 1.00th=[ 163], 5.00th=[ 163], 10.00th=[ 163], 20.00th=[ 201], | 30.00th=[ 317], 40.00th=[ 317], 50.00th=[ 368], 60.00th=[ 468], | 70.00th=[ 468], 80.00th=[ 567], 90.00th=[ 1636], 95.00th=[ 1636], | 99.00th=[ 1636], 99.50th=[ 1636], 99.90th=[ 1636], 99.95th=[ 1636], | 99.99th=[ 1636] bw ( KiB/s): min= 1812, max= 4096, per=51.02%, avg=2951.25, stdev=1312.05, samples=4 iops : min= 1, max= 4, avg= 2.25, stdev= 1.50, samples=4 lat (usec) : 500=16.67%, 750=8.33% lat (msec) : 250=33.33%, 500=25.00%, 750=8.33%, 2000=8.33% cpu : usr=0.02%, sys=6.93%, ctx=138, 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=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-1835KiB/s (423kB/s-1879kB/s), io=20.0MiB (20.0MB), run=3906-4956msec WRITE: bw=5785KiB/s (5924kB/s), 1311KiB/s-2066KiB/s (1342kB/s-2116kB/s), io=28.0MiB (29.4MB), run=3906-4956msec rand-rw: (groupid=0, jobs=1): err= 0: pid=143829: Thu Jul 30 02:50:12 2026 read: IOPS=1, BW=1263KiB/s (1293kB/s)(7168KiB/5677msec) clat (msec): min=53, max=1793, avg=612.22, stdev=724.20 lat (msec): min=53, max=1793, avg=612.22, stdev=724.20 clat percentiles (msec): | 1.00th=[ 54], 5.00th=[ 54], 10.00th=[ 54], 20.00th=[ 111], | 30.00th=[ 129], 40.00th=[ 129], 50.00th=[ 317], 60.00th=[ 372], | 70.00th=[ 372], 80.00th=[ 1519], 90.00th=[ 1787], 95.00th=[ 1787], | 99.00th=[ 1787], 99.50th=[ 1787], 99.90th=[ 1787], 99.95th=[ 1787], | 99.99th=[ 1787] bw ( KiB/s): min= 1996, max= 4055, per=71.64%, avg=2432.80, stdev=907.03, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 write: IOPS=0, BW=902KiB/s (924kB/s)(5120KiB/5677msec); 0 zone resets clat (msec): min=174, max=444, avg=265.86, stdev=109.40 lat (msec): min=174, max=444, avg=266.08, stdev=109.29 clat percentiles (msec): | 1.00th=[ 176], 5.00th=[ 176], 10.00th=[ 176], 20.00th=[ 176], | 30.00th=[ 203], 40.00th=[ 203], 50.00th=[ 213], 60.00th=[ 213], | 70.00th=[ 296], 80.00th=[ 296], 90.00th=[ 443], 95.00th=[ 443], | 99.00th=[ 443], 99.50th=[ 443], 99.90th=[ 443], 99.95th=[ 443], | 99.99th=[ 443] bw ( KiB/s): min= 2027, max= 4096, per=71.53%, avg=3400.67, stdev=1189.66, samples=3 iops : min= 1, max= 4, avg= 2.67, stdev= 1.53, samples=3 lat (msec) : 100=8.33%, 250=41.67%, 500=33.33%, 2000=16.67% cpu : usr=0.00%, sys=2.13%, ctx=46, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=143831: Thu Jul 30 02:50:12 2026 read: IOPS=0, BW=351KiB/s (359kB/s)(2048KiB/5834msec) clat (msec): min=86, max=344, avg=215.30, stdev=182.44 lat (msec): min=86, max=344, avg=215.30, stdev=182.44 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=[ 347], | 70.00th=[ 347], 80.00th=[ 347], 90.00th=[ 347], 95.00th=[ 347], | 99.00th=[ 347], 99.50th=[ 347], 99.90th=[ 347], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 1612, max= 2048, per=53.89%, avg=1830.00, stdev=308.30, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 write: IOPS=1, BW=1755KiB/s (1797kB/s)(10.0MiB/5834msec); 0 zone resets clat (msec): min=126, max=2711, avg=534.67, stdev=775.82 lat (msec): min=126, max=2711, avg=534.76, stdev=775.81 clat percentiles (msec): | 1.00th=[ 127], 5.00th=[ 127], 10.00th=[ 127], 20.00th=[ 171], | 30.00th=[ 190], 40.00th=[ 194], 50.00th=[ 266], 60.00th=[ 305], | 70.00th=[ 418], 80.00th=[ 481], 90.00th=[ 485], 95.00th=[ 2702], | 99.00th=[ 2702], 99.50th=[ 2702], 99.90th=[ 2702], 99.95th=[ 2702], | 99.99th=[ 2702] bw ( KiB/s): min= 1996, max= 4096, per=56.99%, avg=2709.33, stdev=1067.61, samples=6 iops : min= 1, max= 4, avg= 1.83, stdev= 1.33, samples=6 lat (msec) : 100=8.33%, 250=33.33%, 500=50.00%, >=2000=8.33% cpu : usr=0.02%, sys=2.33%, ctx=67, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=143835: Thu Jul 30 02:50:12 2026 read: IOPS=1, BW=1146KiB/s (1174kB/s)(6144KiB/5360msec) clat (msec): min=77, max=524, avg=216.51, stdev=165.16 lat (msec): min=77, max=524, avg=216.51, stdev=165.16 clat percentiles (msec): | 1.00th=[ 79], 5.00th=[ 79], 10.00th=[ 79], 20.00th=[ 91], | 30.00th=[ 91], 40.00th=[ 167], 50.00th=[ 167], 60.00th=[ 180], | 70.00th=[ 264], 80.00th=[ 264], 90.00th=[ 527], 95.00th=[ 527], | 99.00th=[ 527], 99.50th=[ 527], 99.90th=[ 527], 99.95th=[ 527], | 99.99th=[ 527] bw ( KiB/s): min= 1996, max= 4055, per=74.57%, avg=2532.50, stdev=1015.23, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 write: IOPS=1, BW=1146KiB/s (1174kB/s)(6144KiB/5360msec); 0 zone resets clat (msec): min=127, max=2105, avg=633.44, stdev=752.17 lat (msec): min=127, max=2105, avg=633.54, stdev=752.21 clat percentiles (msec): | 1.00th=[ 128], 5.00th=[ 128], 10.00th=[ 128], 20.00th=[ 247], | 30.00th=[ 247], 40.00th=[ 253], 50.00th=[ 253], 60.00th=[ 321], | 70.00th=[ 751], 80.00th=[ 751], 90.00th=[ 2106], 95.00th=[ 2106], | 99.00th=[ 2106], 99.50th=[ 2106], 99.90th=[ 2106], 99.95th=[ 2106], | 99.99th=[ 2106] bw ( KiB/s): min= 1996, max= 2048, per=42.65%, avg=2027.40, stdev=20.84, samples=5 iops : min= 1, max= 2, avg= 1.20, stdev= 0.45, samples=5 lat (msec) : 100=16.67%, 250=33.33%, 500=25.00%, 750=16.67%, >=2000=8.33% cpu : usr=0.00%, sys=2.22%, ctx=75, 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=143836: Thu Jul 30 02:50:12 2026 read: IOPS=0, BW=849KiB/s (869kB/s)(5120KiB/6030msec) clat (msec): min=113, max=538, avg=278.71, stdev=174.32 lat (msec): min=113, max=538, avg=278.72, stdev=174.32 clat percentiles (msec): | 1.00th=[ 114], 5.00th=[ 114], 10.00th=[ 114], 20.00th=[ 114], | 30.00th=[ 169], 40.00th=[ 169], 50.00th=[ 201], 60.00th=[ 201], | 70.00th=[ 372], 80.00th=[ 372], 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= 2031, max= 4055, per=79.84%, avg=2711.33, stdev=1163.68, samples=3 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=3 write: IOPS=1, BW=1189KiB/s (1217kB/s)(7168KiB/6030msec); 0 zone resets clat (msec): min=145, max=2030, avg=621.36, stdev=657.08 lat (msec): min=145, max=2030, avg=621.47, stdev=657.07 clat percentiles (msec): | 1.00th=[ 146], 5.00th=[ 146], 10.00th=[ 146], 20.00th=[ 186], | 30.00th=[ 330], 40.00th=[ 330], 50.00th=[ 422], 60.00th=[ 435], | 70.00th=[ 435], 80.00th=[ 802], 90.00th=[ 2039], 95.00th=[ 2039], | 99.00th=[ 2039], 99.50th=[ 2039], 99.90th=[ 2039], 99.95th=[ 2039], | 99.99th=[ 2039] bw ( KiB/s): min= 1996, max= 2039, per=42.54%, avg=2022.40, stdev=16.43, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 250=41.67%, 500=33.33%, 750=8.33%, 1000=8.33%, >=2000=8.33% cpu : usr=0.00%, sys=2.07%, ctx=73, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=3396KiB/s (3478kB/s), 351KiB/s-1263KiB/s (359kB/s-1293kB/s), io=20.0MiB (20.0MB), run=5360-6030msec WRITE: bw=4755KiB/s (4869kB/s), 902KiB/s-1755KiB/s (924kB/s-1797kB/s), io=28.0MiB (29.4MB), run=5360-6030msec 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=143845: Thu Jul 30 02:50:30 2026 read: IOPS=1, BW=4470KiB/s (4577kB/s)(12.0MiB/2749msec) clat (msec): min=721, max=1054, avg=891.55, stdev=166.70 lat (msec): min=721, max=1054, avg=891.55, stdev=166.70 clat percentiles (msec): | 1.00th=[ 726], 5.00th=[ 726], 10.00th=[ 726], 20.00th=[ 726], | 30.00th=[ 726], 40.00th=[ 902], 50.00th=[ 902], 60.00th=[ 902], | 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= 7968, max= 8159, per=100.00%, avg=8063.50, stdev=135.06, 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=0.00%, sys=10.37%, ctx=223, 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=143847: Thu Jul 30 02:50:30 2026 read: IOPS=0, BW=866KiB/s (887kB/s)(4096KiB/4728msec) clat (nsec): min=1005.6M, max=1005.6M, avg=1005602400.00, stdev= 0.00 lat (nsec): min=1005.6M, max=1005.6M, avg=1005604739.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1003], 5.00th=[ 1003], 10.00th=[ 1003], 20.00th=[ 1003], | 30.00th=[ 1003], 40.00th=[ 1003], 50.00th=[ 1003], 60.00th=[ 1003], | 70.00th=[ 1003], 80.00th=[ 1003], 90.00th=[ 1003], 95.00th=[ 1003], | 99.00th=[ 1003], 99.50th=[ 1003], 99.90th=[ 1003], 99.95th=[ 1003], | 99.99th=[ 1003] 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=1733KiB/s (1774kB/s)(8192KiB/4728msec); 0 zone resets clat (msec): min=1174, max=2416, avg=1795.75, stdev=878.43 lat (msec): min=1174, max=2417, avg=1795.99, stdev=878.34 clat percentiles (msec): | 1.00th=[ 1183], 5.00th=[ 1183], 10.00th=[ 1183], 20.00th=[ 1183], | 30.00th=[ 1183], 40.00th=[ 1183], 50.00th=[ 1183], 60.00th=[ 2433], | 70.00th=[ 2433], 80.00th=[ 2433], 90.00th=[ 2433], 95.00th=[ 2433], | 99.00th=[ 2433], 99.50th=[ 2433], 99.90th=[ 2433], 99.95th=[ 2433], | 99.99th=[ 2433] bw ( KiB/s): min= 7301, max= 7301, per=100.00%, avg=7301.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 2000=66.67%, >=2000=33.33% cpu : usr=0.00%, sys=2.69%, ctx=87, 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=143849: Thu Jul 30 02:50:30 2026 write: IOPS=0, BW=3455KiB/s (3538kB/s)(12.0MiB/3557msec); 0 zone resets clat (msec): min=1077, max=1203, avg=1155.56, stdev=68.04 lat (msec): min=1078, max=1204, avg=1155.96, stdev=68.06 clat percentiles (msec): | 1.00th=[ 1083], 5.00th=[ 1083], 10.00th=[ 1083], 20.00th=[ 1083], | 30.00th=[ 1083], 40.00th=[ 1183], 50.00th=[ 1183], 60.00th=[ 1183], | 70.00th=[ 1200], 80.00th=[ 1200], 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= 8143, max= 8175, per=100.00%, avg=8159.00, stdev=22.63, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 2000=100.00% cpu : usr=0.00%, sys=3.29%, ctx=48, 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=143851: Thu Jul 30 02:50:30 2026 write: IOPS=0, BW=2983KiB/s (3055kB/s)(12.0MiB/4119msec); 0 zone resets clat (msec): min=376, max=2651, avg=1336.93, stdev=1178.19 lat (msec): min=376, max=2651, avg=1337.16, stdev=1178.31 clat percentiles (msec): | 1.00th=[ 376], 5.00th=[ 376], 10.00th=[ 376], 20.00th=[ 376], | 30.00th=[ 376], 40.00th=[ 986], 50.00th=[ 986], 60.00th=[ 986], | 70.00th=[ 2668], 80.00th=[ 2668], 90.00th=[ 2668], 95.00th=[ 2668], | 99.00th=[ 2668], 99.50th=[ 2668], 99.90th=[ 2668], 99.95th=[ 2668], | 99.99th=[ 2668] 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) : 500=33.33%, 1000=33.33%, >=2000=33.33% cpu : usr=0.05%, sys=3.35%, ctx=58, 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=3465KiB/s (3548kB/s), 866KiB/s-4470KiB/s (887kB/s-4577kB/s), io=16.0MiB (16.8MB), run=2749-4728msec WRITE: bw=6931KiB/s (7097kB/s), 1733KiB/s-3455KiB/s (1774kB/s-3538kB/s), io=32.0MiB (33.6MB), run=3557-4728msec rand-rw: (groupid=0, jobs=1): err= 0: pid=143846: Thu Jul 30 02:50:31 2026 read: IOPS=0, BW=3326KiB/s (3406kB/s)(12.0MiB/3694msec) clat (msec): min=531, max=1717, avg=1203.20, stdev=608.10 lat (msec): min=531, max=1717, avg=1203.20, stdev=608.10 clat percentiles (msec): | 1.00th=[ 531], 5.00th=[ 531], 10.00th=[ 531], 20.00th=[ 531], | 30.00th=[ 531], 40.00th=[ 1368], 50.00th=[ 1368], 60.00th=[ 1368], | 70.00th=[ 1720], 80.00th=[ 1720], 90.00th=[ 1720], 95.00th=[ 1720], | 99.00th=[ 1720], 99.50th=[ 1720], 99.90th=[ 1720], 99.95th=[ 1720], | 99.99th=[ 1720] bw ( KiB/s): min= 8047, max= 8143, per=100.00%, avg=8095.00, stdev=67.88, 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=0.05%, sys=2.57%, ctx=39, 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=143848: Thu Jul 30 02:50:31 2026 read: IOPS=0, BW=874KiB/s (894kB/s)(4096KiB/4689msec) clat (nsec): min=1930.4M, max=1930.4M, avg=1930422704.00, stdev= 0.00 lat (nsec): min=1930.4M, max=1930.4M, avg=1930425202.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1938], 5.00th=[ 1938], 10.00th=[ 1938], 20.00th=[ 1938], | 30.00th=[ 1938], 40.00th=[ 1938], 50.00th=[ 1938], 60.00th=[ 1938], | 70.00th=[ 1938], 80.00th=[ 1938], 90.00th=[ 1938], 95.00th=[ 1938], | 99.00th=[ 1938], 99.50th=[ 1938], 99.90th=[ 1938], 99.95th=[ 1938], | 99.99th=[ 1938] bw ( KiB/s): min= 7937, max= 7937, per=100.00%, avg=7937.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=1747KiB/s (1789kB/s)(8192KiB/4689msec); 0 zone resets clat (msec): min=989, max=1604, avg=1296.65, stdev=434.98 lat (msec): min=989, max=1604, avg=1296.97, stdev=434.92 clat percentiles (msec): | 1.00th=[ 986], 5.00th=[ 986], 10.00th=[ 986], 20.00th=[ 986], | 30.00th=[ 986], 40.00th=[ 986], 50.00th=[ 986], 60.00th=[ 1603], | 70.00th=[ 1603], 80.00th=[ 1603], 90.00th=[ 1603], 95.00th=[ 1603], | 99.00th=[ 1603], 99.50th=[ 1603], 99.90th=[ 1603], 99.95th=[ 1603], | 99.99th=[ 1603] bw ( KiB/s): min= 8192, max= 8192, per=100.00%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 1000=33.33%, 2000=66.67% cpu : usr=0.00%, sys=3.01%, ctx=60, 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=143850: Thu Jul 30 02:50:31 2026 write: IOPS=0, BW=2836KiB/s (2904kB/s)(12.0MiB/4333msec); 0 zone resets clat (msec): min=350, max=2027, avg=1385.69, stdev=904.79 lat (msec): min=350, max=2036, avg=1389.36, stdev=908.38 clat percentiles (msec): | 1.00th=[ 351], 5.00th=[ 351], 10.00th=[ 351], 20.00th=[ 351], | 30.00th=[ 351], 40.00th=[ 1787], 50.00th=[ 1787], 60.00th=[ 1787], | 70.00th=[ 2022], 80.00th=[ 2022], 90.00th=[ 2022], 95.00th=[ 2022], | 99.00th=[ 2022], 99.50th=[ 2022], 99.90th=[ 2022], 99.95th=[ 2022], | 99.99th=[ 2022] bw ( KiB/s): min= 7937, max= 7968, per=100.00%, avg=7952.50, stdev=21.92, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=2.01%, ctx=41, 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=143852: Thu Jul 30 02:50:31 2026 write: IOPS=0, BW=3890KiB/s (3983kB/s)(12.0MiB/3159msec); 0 zone resets clat (msec): min=448, max=1397, avg=1008.95, stdev=497.24 lat (msec): min=449, max=1398, avg=1009.71, stdev=497.49 clat percentiles (msec): | 1.00th=[ 447], 5.00th=[ 447], 10.00th=[ 447], 20.00th=[ 447], | 30.00th=[ 447], 40.00th=[ 1183], 50.00th=[ 1183], 60.00th=[ 1183], | 70.00th=[ 1401], 80.00th=[ 1401], 90.00th=[ 1401], 95.00th=[ 1401], | 99.00th=[ 1401], 99.50th=[ 1401], 99.90th=[ 1401], 99.95th=[ 1401], | 99.99th=[ 1401] bw ( KiB/s): min= 8175, max= 8175, per=100.00%, avg=8175.00, stdev= 0.00, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.06%, sys=2.34%, ctx=39, 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=3494KiB/s (3578kB/s), 874KiB/s-3326KiB/s (894kB/s-3406kB/s), io=16.0MiB (16.8MB), run=3694-4689msec WRITE: bw=6988KiB/s (7156kB/s), 1747KiB/s-3890KiB/s (1789kB/s-3983kB/s), io=32.0MiB (33.6MB), run=3159-4689msec