== sanity test 398b: DIO and buffer IO race ============== 05:01:03 (1787389263) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 6.28483 s, 8.0 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=144727: Sat Aug 22 05:03:48 2026 read: IOPS=10, BW=42.4KiB/s (43.5kB/s)(5992KiB/141201msec) clat (usec): min=34, max=490134, avg=45126.70, stdev=36223.26 lat (usec): min=35, max=490136, avg=45128.10, stdev=36223.15 clat percentiles (usec): | 1.00th=[ 49], 5.00th=[ 58], 10.00th=[ 114], 20.00th=[ 20055], | 30.00th=[ 26084], 40.00th=[ 31589], 50.00th=[ 38536], 60.00th=[ 45876], | 70.00th=[ 55837], 80.00th=[ 69731], 90.00th=[ 87557], 95.00th=[104334], | 99.00th=[149947], 99.50th=[177210], 99.90th=[421528], 99.95th=[488637], | 99.99th=[488637] bw ( KiB/s): min= 7, max= 95, per=25.61%, avg=42.51, stdev=19.37, samples=275 iops : min= 1, max= 23, avg= 9.97, stdev= 4.86, samples=275 write: IOPS=11, BW=44.6KiB/s (45.7kB/s)(6296KiB/141201msec); 0 zone resets clat (usec): min=985, max=677296, avg=46415.11, stdev=50404.39 lat (usec): min=986, max=677298, avg=46418.55, stdev=50404.55 clat percentiles (usec): | 1.00th=[ 1188], 5.00th=[ 1336], 10.00th=[ 1696], 20.00th=[ 4293], | 30.00th=[ 9241], 40.00th=[ 21103], 50.00th=[ 33817], 60.00th=[ 44827], | 70.00th=[ 58983], 80.00th=[ 80217], 90.00th=[111674], 95.00th=[143655], | 99.00th=[214959], 99.50th=[238027], 99.90th=[283116], 99.95th=[675283], | 99.99th=[675283] bw ( KiB/s): min= 7, max= 126, per=25.48%, avg=44.34, stdev=20.13, samples=277 iops : min= 1, max= 31, avg=10.43, stdev= 5.07, samples=277 lat (usec) : 50=0.65%, 100=4.10%, 250=0.49%, 500=0.13%, 1000=0.07% lat (msec) : 2=6.35%, 4=3.35%, 10=6.45%, 20=7.91%, 50=34.73% lat (msec) : 100=25.72%, 250=9.80%, 500=0.23%, 750=0.03% cpu : usr=0.07%, sys=4.68%, ctx=6346, majf=0, minf=18 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=144729: Sat Aug 22 05:03:48 2026 read: IOPS=10, BW=41.2KiB/s (42.1kB/s)(5940KiB/144333msec) clat (usec): min=34, max=610594, avg=46371.64, stdev=41468.36 lat (usec): min=34, max=610596, avg=46374.63, stdev=41468.71 clat percentiles (usec): | 1.00th=[ 48], 5.00th=[ 57], 10.00th=[ 89], 20.00th=[ 19792], | 30.00th=[ 26608], 40.00th=[ 32113], 50.00th=[ 38011], 60.00th=[ 45351], | 70.00th=[ 55837], 80.00th=[ 69731], 90.00th=[ 88605], 95.00th=[111674], | 99.00th=[166724], 99.50th=[191890], 99.90th=[566232], 99.95th=[608175], | 99.99th=[608175] bw ( KiB/s): min= 6, max= 119, per=24.86%, avg=41.27, stdev=20.34, samples=280 iops : min= 1, max= 29, avg= 9.66, stdev= 5.12, samples=280 write: IOPS=10, BW=43.0KiB/s (45.0kB/s)(6348KiB/144333msec); 0 zone resets clat (usec): min=905, max=736723, avg=47200.76, stdev=51455.44 lat (usec): min=907, max=736725, avg=47202.55, stdev=51455.32 clat percentiles (usec): | 1.00th=[ 1237], 5.00th=[ 1352], 10.00th=[ 1598], 20.00th=[ 4293], | 30.00th=[ 8848], 40.00th=[ 21103], 50.00th=[ 34341], 60.00th=[ 47449], | 70.00th=[ 61604], 80.00th=[ 81265], 90.00th=[114820], 95.00th=[143655], | 99.00th=[210764], 99.50th=[240124], 99.90th=[354419], 99.95th=[734004], | 99.99th=[734004] bw ( KiB/s): min= 7, max= 197, per=25.04%, avg=43.58, stdev=22.49, samples=284 iops : min= 1, max= 49, avg=10.24, stdev= 5.67, samples=284 lat (usec) : 50=0.75%, 100=4.23%, 250=0.23%, 500=0.03%, 1000=0.07% lat (msec) : 2=6.22%, 4=3.71%, 10=6.51%, 20=8.27%, 50=33.63% lat (msec) : 100=25.88%, 250=10.12%, 500=0.26%, 750=0.10% cpu : usr=0.07%, sys=4.68%, ctx=6300, majf=0, minf=19 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=144730: Sat Aug 22 05:03:48 2026 read: IOPS=10, BW=42.7KiB/s (43.7kB/s)(6028KiB/141263msec) clat (usec): min=29, max=518240, avg=42867.10, stdev=33852.86 lat (usec): min=29, max=518241, avg=42869.74, stdev=33852.25 clat percentiles (usec): | 1.00th=[ 50], 5.00th=[ 58], 10.00th=[ 87], 20.00th=[ 19530], | 30.00th=[ 25297], 40.00th=[ 30278], 50.00th=[ 36963], 60.00th=[ 44303], | 70.00th=[ 53740], 80.00th=[ 64750], 90.00th=[ 82314], 95.00th=[ 99091], | 99.00th=[137364], 99.50th=[162530], 99.90th=[396362], 99.95th=[517997], | 99.99th=[517997] bw ( KiB/s): min= 7, max= 127, per=25.93%, avg=43.04, stdev=21.45, samples=273 iops : min= 1, max= 31, avg=10.10, stdev= 5.41, samples=273 write: IOPS=11, BW=44.3KiB/s (45.4kB/s)(6260KiB/141263msec); 0 zone resets clat (usec): min=984, max=845097, avg=48562.19, stdev=55369.08 lat (usec): min=985, max=845101, avg=48570.09, stdev=55370.21 clat percentiles (usec): | 1.00th=[ 1188], 5.00th=[ 1319], 10.00th=[ 1549], 20.00th=[ 4228], | 30.00th=[ 8979], 40.00th=[ 21627], 50.00th=[ 34866], 60.00th=[ 47973], | 70.00th=[ 63177], 80.00th=[ 81265], 90.00th=[116917], 95.00th=[145753], | 99.00th=[219153], 99.50th=[287310], 99.90th=[476054], 99.95th=[843056], | 99.99th=[843056] bw ( KiB/s): min= 7, max= 111, per=25.41%, avg=44.21, stdev=19.85, samples=276 iops : min= 1, max= 27, avg=10.40, stdev= 4.99, samples=276 lat (usec) : 50=0.52%, 100=4.52%, 250=0.49%, 500=0.07%, 750=0.07% lat (usec) : 1000=0.03% lat (msec) : 2=6.15%, 4=3.58%, 10=6.38%, 20=8.04%, 50=33.92% lat (msec) : 100=26.60%, 250=9.24%, 500=0.33%, 750=0.03%, 1000=0.03% cpu : usr=0.07%, sys=4.51%, ctx=6286, majf=0, minf=18 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=144732: Sat Aug 22 05:03:48 2026 read: IOPS=10, BW=43.3KiB/s (44.3kB/s)(6052KiB/139816msec) clat (usec): min=31, max=402039, avg=45731.63, stdev=36479.81 lat (usec): min=31, max=402040, avg=45732.92, stdev=36479.87 clat percentiles (usec): | 1.00th=[ 43], 5.00th=[ 58], 10.00th=[ 75], 20.00th=[ 20841], | 30.00th=[ 26870], 40.00th=[ 32637], 50.00th=[ 39060], 60.00th=[ 46924], | 70.00th=[ 54789], 80.00th=[ 68682], 90.00th=[ 88605], 95.00th=[108528], | 99.00th=[158335], 99.50th=[217056], 99.90th=[299893], 99.95th=[400557], | 99.99th=[400557] bw ( KiB/s): min= 7, max= 103, per=26.14%, avg=43.40, stdev=19.57, samples=272 iops : min= 1, max= 25, avg=10.19, stdev= 4.92, samples=272 write: IOPS=11, BW=44.6KiB/s (45.7kB/s)(6236KiB/139816msec); 0 zone resets clat (usec): min=936, max=720538, avg=44938.00, stdev=51096.60 lat (usec): min=938, max=720539, avg=44940.44, stdev=51097.64 clat percentiles (usec): | 1.00th=[ 1205], 5.00th=[ 1319], 10.00th=[ 1467], 20.00th=[ 3982], | 30.00th=[ 8291], 40.00th=[ 18482], 50.00th=[ 32900], 60.00th=[ 45351], | 70.00th=[ 60031], 80.00th=[ 78119], 90.00th=[105382], 95.00th=[129500], | 99.00th=[214959], 99.50th=[295699], 99.90th=[467665], 99.95th=[717226], | 99.99th=[717226] bw ( KiB/s): min= 7, max= 103, per=25.41%, avg=44.22, stdev=20.15, samples=275 iops : min= 1, max= 25, avg=10.41, stdev= 5.09, samples=275 lat (usec) : 50=0.88%, 100=4.56%, 250=0.33%, 500=0.16%, 750=0.03% lat (usec) : 1000=0.13% lat (msec) : 2=6.71%, 4=3.55%, 10=6.12%, 20=7.55%, 50=33.66% lat (msec) : 100=27.44%, 250=8.43%, 500=0.42%, 750=0.03% cpu : usr=0.07%, sys=4.48%, ctx=6121, majf=0, minf=18 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=166KiB/s (170kB/s), 41.2KiB/s-43.3KiB/s (42.1kB/s-44.3kB/s), io=23.4MiB (24.6MB), run=139816-144333msec WRITE: bw=174KiB/s (178kB/s), 43.0KiB/s-44.6KiB/s (45.0kB/s-45.7kB/s), io=24.6MiB (25.7MB), run=139816-144333msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144726: Sat Aug 22 05:06:42 2026 read: IOPS=4, BW=18.9KiB/s (19.3kB/s)(5992KiB/317790msec) clat (msec): min=6, max=582, avg=41.92, stdev=45.23 lat (msec): min=6, max=582, avg=41.92, stdev=45.23 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 20], 40.00th=[ 24], 50.00th=[ 29], 60.00th=[ 34], | 70.00th=[ 42], 80.00th=[ 55], 90.00th=[ 86], 95.00th=[ 120], | 99.00th=[ 236], 99.50th=[ 326], 99.90th=[ 447], 99.95th=[ 584], | 99.99th=[ 584] bw ( KiB/s): min= 7, max= 87, per=30.14%, avg=22.60, stdev=14.91, samples=510 iops : min= 1, max= 21, avg= 5.02, stdev= 3.75, samples=510 write: IOPS=4, BW=19.8KiB/s (20.3kB/s)(6296KiB/317790msec); 0 zone resets clat (msec): min=36, max=605, avg=161.65, stdev=76.79 lat (msec): min=36, max=605, avg=161.66, stdev=76.79 clat percentiles (msec): | 1.00th=[ 56], 5.00th=[ 73], 10.00th=[ 86], 20.00th=[ 102], | 30.00th=[ 114], 40.00th=[ 127], 50.00th=[ 142], 60.00th=[ 161], | 70.00th=[ 182], 80.00th=[ 218], 90.00th=[ 266], 95.00th=[ 309], | 99.00th=[ 422], 99.50th=[ 493], 99.90th=[ 584], 99.95th=[ 609], | 99.99th=[ 609] bw ( KiB/s): min= 7, max= 48, per=24.95%, avg=19.71, stdev= 8.94, samples=611 iops : min= 1, max= 12, avg= 4.29, stdev= 2.28, samples=611 lat (msec) : 10=1.89%, 20=12.99%, 50=22.88%, 100=17.32%, 250=38.05% lat (msec) : 500=6.64%, 750=0.23% cpu : usr=0.04%, sys=1.11%, ctx=5078, 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=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=144728: Sat Aug 22 05:06:42 2026 read: IOPS=4, BW=18.8KiB/s (19.2kB/s)(5940KiB/316644msec) clat (msec): min=6, max=773, avg=40.16, stdev=44.87 lat (msec): min=6, max=773, avg=40.16, stdev=44.87 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 20], 40.00th=[ 23], 50.00th=[ 27], 60.00th=[ 33], | 70.00th=[ 41], 80.00th=[ 54], 90.00th=[ 84], 95.00th=[ 110], | 99.00th=[ 201], 99.50th=[ 288], 99.90th=[ 535], 99.95th=[ 776], | 99.99th=[ 776] bw ( KiB/s): min= 7, max= 96, per=29.52%, avg=22.14, stdev=15.20, samples=516 iops : min= 1, max= 24, avg= 4.91, stdev= 3.83, samples=516 write: IOPS=5, BW=20.0KiB/s (20.5kB/s)(6348KiB/316644msec); 0 zone resets clat (msec): min=33, max=782, avg=161.62, stdev=75.50 lat (msec): min=33, max=782, avg=161.62, stdev=75.50 clat percentiles (msec): | 1.00th=[ 54], 5.00th=[ 74], 10.00th=[ 84], 20.00th=[ 102], | 30.00th=[ 115], 40.00th=[ 129], 50.00th=[ 146], 60.00th=[ 163], | 70.00th=[ 186], 80.00th=[ 213], 90.00th=[ 264], 95.00th=[ 305], | 99.00th=[ 401], 99.50th=[ 443], 99.90th=[ 550], 99.95th=[ 785], | 99.99th=[ 785] bw ( KiB/s): min= 7, max= 56, per=24.92%, avg=19.69, stdev= 9.12, samples=617 iops : min= 1, max= 14, avg= 4.29, stdev= 2.32, samples=617 lat (msec) : 10=1.76%, 20=13.83%, 50=22.10%, 100=17.51%, 250=38.48% lat (msec) : 500=6.12%, 750=0.13%, 1000=0.07% cpu : usr=0.04%, sys=1.20%, ctx=5407, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144731: Sat Aug 22 05:06:42 2026 read: IOPS=4, BW=18.0KiB/s (19.4kB/s)(6028KiB/317881msec) clat (msec): min=5, max=478, avg=42.72, stdev=41.75 lat (msec): min=5, max=478, avg=42.72, stdev=41.75 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 24], 50.00th=[ 29], 60.00th=[ 35], | 70.00th=[ 44], 80.00th=[ 58], 90.00th=[ 90], 95.00th=[ 122], | 99.00th=[ 205], 99.50th=[ 253], 99.90th=[ 372], 99.95th=[ 481], | 99.99th=[ 481] bw ( KiB/s): min= 7, max= 110, per=29.53%, avg=22.15, stdev=15.53, samples=524 iops : min= 1, max= 27, avg= 4.91, stdev= 3.93, samples=524 write: IOPS=4, BW=19.7KiB/s (20.2kB/s)(6260KiB/317881msec); 0 zone resets clat (msec): min=44, max=894, avg=161.67, stdev=80.03 lat (msec): min=44, max=894, avg=161.67, stdev=80.03 clat percentiles (msec): | 1.00th=[ 55], 5.00th=[ 73], 10.00th=[ 85], 20.00th=[ 101], | 30.00th=[ 113], 40.00th=[ 127], 50.00th=[ 142], 60.00th=[ 157], | 70.00th=[ 184], 80.00th=[ 218], 90.00th=[ 268], 95.00th=[ 317], | 99.00th=[ 422], 99.50th=[ 468], 99.90th=[ 617], 99.95th=[ 894], | 99.99th=[ 894] bw ( KiB/s): min= 7, max= 48, per=24.92%, avg=19.68, stdev= 9.24, samples=609 iops : min= 1, max= 12, avg= 4.29, stdev= 2.35, samples=609 lat (msec) : 10=1.66%, 20=12.40%, 50=22.69%, 100=18.72%, 250=38.02% lat (msec) : 500=6.38%, 750=0.10%, 1000=0.03% cpu : usr=0.04%, sys=1.18%, ctx=5390, 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=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=144733: Sat Aug 22 05:06:42 2026 read: IOPS=4, BW=19.2KiB/s (19.7kB/s)(6052KiB/314706msec) clat (msec): min=6, max=395, avg=40.14, stdev=39.61 lat (msec): min=6, max=395, avg=40.15, stdev=39.61 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 20], 40.00th=[ 24], 50.00th=[ 28], 60.00th=[ 33], | 70.00th=[ 41], 80.00th=[ 54], 90.00th=[ 85], 95.00th=[ 113], | 99.00th=[ 192], 99.50th=[ 292], 99.90th=[ 393], 99.95th=[ 397], | 99.99th=[ 397] bw ( KiB/s): min= 7, max= 112, per=30.28%, avg=22.71, stdev=15.75, samples=513 iops : min= 1, max= 28, avg= 5.04, stdev= 3.95, samples=513 write: IOPS=4, BW=19.8KiB/s (20.3kB/s)(6236KiB/314706msec); 0 zone resets clat (msec): min=40, max=935, avg=162.53, stdev=79.59 lat (msec): min=40, max=935, avg=162.54, stdev=79.60 clat percentiles (msec): | 1.00th=[ 56], 5.00th=[ 72], 10.00th=[ 84], 20.00th=[ 101], | 30.00th=[ 116], 40.00th=[ 131], 50.00th=[ 146], 60.00th=[ 161], | 70.00th=[ 184], 80.00th=[ 215], 90.00th=[ 271], 95.00th=[ 313], | 99.00th=[ 409], 99.50th=[ 451], 99.90th=[ 768], 99.95th=[ 936], | 99.99th=[ 936] bw ( KiB/s): min= 7, max= 48, per=24.83%, avg=19.61, stdev= 8.94, samples=608 iops : min= 1, max= 12, avg= 4.27, stdev= 2.27, samples=608 lat (msec) : 10=1.50%, 20=13.35%, 50=23.70%, 100=17.77%, 250=36.88% lat (msec) : 500=6.67%, 750=0.07%, 1000=0.07% cpu : usr=0.03%, sys=1.17%, ctx=5291, 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=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=75.5KiB/s (77.3kB/s), 18.8KiB/s-19.2KiB/s (19.2kB/s-19.7kB/s), io=23.4MiB (24.6MB), run=314706-317881msec WRITE: bw=79.1KiB/s (80.0kB/s), 19.7KiB/s-20.0KiB/s (20.2kB/s-20.5kB/s), io=24.6MiB (25.7MB), run=314706-317881msec 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=144798: Sat Aug 22 05:07:31 2026 read: IOPS=10, BW=170KiB/s (174kB/s)(5920KiB/34795msec) clat (usec): min=32, max=328856, avg=49910.24, stdev=38868.86 lat (usec): min=32, max=328856, avg=49911.72, stdev=38868.79 clat percentiles (usec): | 1.00th=[ 42], 5.00th=[ 56], 10.00th=[ 63], 20.00th=[ 13042], | 30.00th=[ 30016], 40.00th=[ 41157], 50.00th=[ 47973], 60.00th=[ 54789], | 70.00th=[ 64226], 80.00th=[ 78119], 90.00th=[ 96994], 95.00th=[113771], | 99.00th=[170918], 99.50th=[187696], 99.90th=[329253], 99.95th=[329253], | 99.99th=[329253] bw ( KiB/s): min= 63, max= 374, per=26.69%, avg=169.50, stdev=68.97, samples=68 iops : min= 3, max= 23, avg= 9.78, stdev= 4.33, samples=68 write: IOPS=11, BW=183KiB/s (187kB/s)(6368KiB/34795msec); 0 zone resets clat (usec): min=1453, max=281608, avg=40880.31, stdev=45895.58 lat (usec): min=1454, max=281611, avg=40888.28, stdev=45892.56 clat percentiles (usec): | 1.00th=[ 1680], 5.00th=[ 1926], 10.00th=[ 2212], 20.00th=[ 5342], | 30.00th=[ 8455], 40.00th=[ 13960], 50.00th=[ 21890], 60.00th=[ 36439], | 70.00th=[ 52691], 80.00th=[ 76022], 90.00th=[102237], 95.00th=[135267], | 99.00th=[217056], 99.50th=[250610], 99.90th=[283116], 99.95th=[283116], | 99.99th=[283116] bw ( KiB/s): min= 31, max= 412, per=27.40%, avg=183.28, stdev=75.34, samples=68 iops : min= 1, max= 25, avg=10.66, stdev= 4.77, samples=68 lat (usec) : 50=1.56%, 100=7.16%, 250=0.52% lat (msec) : 2=4.04%, 4=4.56%, 10=8.59%, 20=8.72%, 50=26.04% lat (msec) : 100=29.43%, 250=9.11%, 500=0.26% cpu : usr=0.05%, sys=5.04%, ctx=1419, majf=0, minf=18 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=144799: Sat Aug 22 05:07:31 2026 read: IOPS=9, BW=153KiB/s (157kB/s)(5744KiB/37552msec) clat (usec): min=39, max=254267, avg=55534.72, stdev=41830.63 lat (usec): min=40, max=254268, avg=55569.91, stdev=41826.01 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 67], 10.00th=[ 79], 20.00th=[ 26084], | 30.00th=[ 35390], 40.00th=[ 42206], 50.00th=[ 49021], 60.00th=[ 61604], | 70.00th=[ 69731], 80.00th=[ 80217], 90.00th=[106431], 95.00th=[128451], | 99.00th=[202376], 99.50th=[229639], 99.90th=[254804], 99.95th=[254804], | 99.99th=[254804] bw ( KiB/s): min= 31, max= 377, per=24.77%, avg=157.31, stdev=67.22, samples=71 iops : min= 1, max= 23, avg= 9.01, stdev= 4.26, samples=71 write: IOPS=10, BW=174KiB/s (178kB/s)(6544KiB/37552msec); 0 zone resets clat (usec): min=1292, max=283337, avg=42835.98, stdev=47028.99 lat (usec): min=1295, max=283341, avg=42865.25, stdev=47017.92 clat percentiles (usec): | 1.00th=[ 1532], 5.00th=[ 1926], 10.00th=[ 2507], 20.00th=[ 5800], | 30.00th=[ 10290], 40.00th=[ 13829], 50.00th=[ 30540], 60.00th=[ 41681], | 70.00th=[ 55837], 80.00th=[ 67634], 90.00th=[105382], 95.00th=[135267], | 99.00th=[208667], 99.50th=[248513], 99.90th=[283116], 99.95th=[283116], | 99.99th=[283116] bw ( KiB/s): min= 31, max= 378, per=26.06%, avg=174.32, stdev=77.47, samples=73 iops : min= 1, max= 23, avg=10.07, stdev= 4.89, samples=73 lat (usec) : 50=0.26%, 100=5.86%, 250=0.91%, 500=0.26% lat (msec) : 2=3.39%, 4=4.56%, 10=8.07%, 20=8.59%, 50=28.39% lat (msec) : 100=28.39%, 250=10.94%, 500=0.39% cpu : usr=0.09%, sys=4.79%, ctx=1473, majf=0, minf=18 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=144800: Sat Aug 22 05:07:31 2026 read: IOPS=10, BW=168KiB/s (172kB/s)(6256KiB/37306msec) clat (usec): min=38, max=307337, avg=50029.46, stdev=41420.06 lat (usec): min=39, max=307339, avg=50031.08, stdev=41419.96 clat percentiles (usec): | 1.00th=[ 41], 5.00th=[ 61], 10.00th=[ 68], 20.00th=[ 114], | 30.00th=[ 30278], 40.00th=[ 40633], 50.00th=[ 46924], 60.00th=[ 56361], | 70.00th=[ 64750], 80.00th=[ 73925], 90.00th=[ 94897], 95.00th=[112722], | 99.00th=[223347], 99.50th=[258999], 99.90th=[308282], 99.95th=[308282], | 99.99th=[308282] bw ( KiB/s): min= 31, max= 345, per=26.81%, avg=170.24, stdev=69.37, samples=72 iops : min= 1, max= 21, avg= 9.82, stdev= 4.40, samples=72 write: IOPS=10, BW=162KiB/s (166kB/s)(6032KiB/37306msec); 0 zone resets clat (usec): min=1501, max=294551, avg=46916.91, stdev=46872.07 lat (usec): min=1504, max=294557, avg=46931.88, stdev=46893.35 clat percentiles (usec): | 1.00th=[ 1713], 5.00th=[ 2008], 10.00th=[ 3130], 20.00th=[ 7177], | 30.00th=[ 12125], 40.00th=[ 19268], 50.00th=[ 33162], 60.00th=[ 47449], | 70.00th=[ 61604], 80.00th=[ 78119], 90.00th=[113771], 95.00th=[141558], | 99.00th=[183501], 99.50th=[246416], 99.90th=[295699], 99.95th=[295699], | 99.99th=[295699] bw ( KiB/s): min= 31, max= 317, per=24.54%, avg=164.18, stdev=63.62, samples=71 iops : min= 1, max= 19, avg= 9.45, stdev= 3.99, samples=71 lat (usec) : 50=1.17%, 100=8.72%, 250=0.39%, 500=0.39%, 750=0.13% lat (msec) : 2=2.34%, 4=3.52%, 10=7.29%, 20=7.68%, 50=25.39% lat (msec) : 100=31.64%, 250=10.94%, 500=0.39% cpu : usr=0.04%, sys=4.54%, ctx=1446, majf=0, minf=18 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=144801: Sat Aug 22 05:07:31 2026 read: IOPS=10, BW=160KiB/s (164kB/s)(6032KiB/37665msec) clat (usec): min=39, max=299944, avg=48902.43, stdev=42361.66 lat (usec): min=39, max=299946, avg=48904.00, stdev=42361.61 clat percentiles (usec): | 1.00th=[ 43], 5.00th=[ 61], 10.00th=[ 69], 20.00th=[ 95], | 30.00th=[ 28181], 40.00th=[ 36439], 50.00th=[ 45876], 60.00th=[ 55313], | 70.00th=[ 63177], 80.00th=[ 74974], 90.00th=[101188], 95.00th=[121111], | 99.00th=[210764], 99.50th=[229639], 99.90th=[299893], 99.95th=[299893], | 99.99th=[299893] bw ( KiB/s): min= 31, max= 377, per=25.72%, avg=163.34, stdev=74.50, samples=71 iops : min= 1, max= 23, avg= 9.38, stdev= 4.70, samples=71 write: IOPS=10, BW=166KiB/s (170kB/s)(6256KiB/37665msec); 0 zone resets clat (usec): min=1509, max=370231, avg=48871.58, stdev=53724.95 lat (usec): min=1512, max=370234, avg=48969.96, stdev=53690.43 clat percentiles (usec): | 1.00th=[ 1680], 5.00th=[ 1975], 10.00th=[ 3130], 20.00th=[ 6915], | 30.00th=[ 12125], 40.00th=[ 21365], 50.00th=[ 30540], 60.00th=[ 45351], | 70.00th=[ 61604], 80.00th=[ 80217], 90.00th=[111674], 95.00th=[149947], | 99.00th=[258999], 99.50th=[341836], 99.90th=[371196], 99.95th=[371196], | 99.99th=[371196] bw ( KiB/s): min= 63, max= 415, per=24.78%, avg=165.75, stdev=71.96, samples=73 iops : min= 3, max= 25, avg= 9.53, stdev= 4.53, samples=73 lat (usec) : 50=1.30%, 100=8.85%, 250=0.91%, 500=0.39%, 750=0.13% lat (usec) : 1000=0.26% lat (msec) : 2=2.99%, 4=3.12%, 10=7.03%, 20=7.42%, 50=26.95% lat (msec) : 100=28.26%, 250=11.72%, 500=0.65% cpu : usr=0.07%, sys=4.59%, ctx=1388, majf=0, minf=19 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=636KiB/s (651kB/s), 153KiB/s-170KiB/s (157kB/s-174kB/s), io=23.4MiB (24.5MB), run=34795-37665msec WRITE: bw=669KiB/s (685kB/s), 162KiB/s-183KiB/s (166kB/s-187kB/s), io=24.6MiB (25.8MB), run=34795-37665msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144793: Sat Aug 22 05:08:26 2026 read: IOPS=4, BW=64.6KiB/s (66.1kB/s)(5920KiB/91679msec) clat (msec): min=9, max=346, avg=50.21, stdev=51.18 lat (msec): min=9, max=346, avg=50.22, stdev=51.18 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 14], 10.00th=[ 17], 20.00th=[ 22], | 30.00th=[ 25], 40.00th=[ 28], 50.00th=[ 32], 60.00th=[ 39], | 70.00th=[ 45], 80.00th=[ 67], 90.00th=[ 103], 95.00th=[ 163], | 99.00th=[ 275], 99.50th=[ 347], 99.90th=[ 347], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 30, max= 287, per=31.06%, avg=79.20, stdev=49.13, samples=146 iops : min= 1, max= 17, avg= 4.15, stdev= 3.09, samples=146 write: IOPS=4, BW=69.5KiB/s (71.1kB/s)(6368KiB/91679msec); 0 zone resets clat (msec): min=68, max=547, avg=183.08, stdev=80.60 lat (msec): min=68, max=548, avg=183.09, stdev=80.59 clat percentiles (msec): | 1.00th=[ 81], 5.00th=[ 92], 10.00th=[ 106], 20.00th=[ 122], | 30.00th=[ 136], 40.00th=[ 150], 50.00th=[ 159], 60.00th=[ 184], | 70.00th=[ 203], 80.00th=[ 232], 90.00th=[ 288], 95.00th=[ 351], | 99.00th=[ 472], 99.50th=[ 531], 99.90th=[ 550], 99.95th=[ 550], | 99.99th=[ 550] bw ( KiB/s): min= 30, max= 159, per=25.96%, avg=69.84, stdev=30.25, samples=179 iops : min= 1, max= 9, avg= 3.56, stdev= 1.98, samples=179 lat (msec) : 10=0.39%, 20=7.94%, 50=27.34%, 100=11.59%, 250=43.75% lat (msec) : 500=8.59%, 750=0.39% cpu : usr=0.03%, sys=1.11%, ctx=1281, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144794: Sat Aug 22 05:08:26 2026 read: IOPS=3, BW=61.4KiB/s (62.8kB/s)(5744KiB/93585msec) clat (msec): min=10, max=511, avg=52.08, stdev=52.79 lat (msec): min=10, max=511, avg=52.08, stdev=52.79 clat percentiles (msec): | 1.00th=[ 12], 5.00th=[ 16], 10.00th=[ 18], 20.00th=[ 22], | 30.00th=[ 26], 40.00th=[ 29], 50.00th=[ 33], 60.00th=[ 39], | 70.00th=[ 48], 80.00th=[ 70], 90.00th=[ 121], 95.00th=[ 159], | 99.00th=[ 234], 99.50th=[ 321], 99.90th=[ 510], 99.95th=[ 510], | 99.99th=[ 510] bw ( KiB/s): min= 22, max= 287, per=30.02%, avg=76.54, stdev=51.43, samples=148 iops : min= 1, max= 17, avg= 4.00, stdev= 3.28, samples=148 write: IOPS=4, BW=69.9KiB/s (71.6kB/s)(6544KiB/93585msec); 0 zone resets clat (msec): min=64, max=576, avg=182.89, stdev=82.58 lat (msec): min=64, max=576, avg=182.89, stdev=82.58 clat percentiles (msec): | 1.00th=[ 70], 5.00th=[ 86], 10.00th=[ 101], 20.00th=[ 118], | 30.00th=[ 136], 40.00th=[ 155], 50.00th=[ 165], 60.00th=[ 178], | 70.00th=[ 207], 80.00th=[ 232], 90.00th=[ 288], 95.00th=[ 334], | 99.00th=[ 481], 99.50th=[ 498], 99.90th=[ 575], 99.95th=[ 575], | 99.99th=[ 575] bw ( KiB/s): min= 30, max= 160, per=26.79%, avg=72.06, stdev=30.31, samples=178 iops : min= 1, max= 10, avg= 3.71, stdev= 2.00, samples=178 lat (msec) : 20=7.68%, 50=25.91%, 100=12.11%, 250=45.83%, 500=8.07% lat (msec) : 750=0.39% cpu : usr=0.03%, sys=1.09%, ctx=1284, 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=144795: Sat Aug 22 05:08:26 2026 read: IOPS=4, BW=69.9KiB/s (71.5kB/s)(6256KiB/89536msec) clat (msec): min=8, max=514, avg=48.09, stdev=51.27 lat (msec): min=8, max=514, avg=48.10, stdev=51.27 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 13], 10.00th=[ 16], 20.00th=[ 20], | 30.00th=[ 23], 40.00th=[ 27], 50.00th=[ 31], 60.00th=[ 36], | 70.00th=[ 45], 80.00th=[ 61], 90.00th=[ 104], 95.00th=[ 146], | 99.00th=[ 271], 99.50th=[ 288], 99.90th=[ 514], 99.95th=[ 514], | 99.99th=[ 514] bw ( KiB/s): min= 22, max= 317, per=32.93%, avg=83.97, stdev=57.21, samples=147 iops : min= 1, max= 19, avg= 4.46, stdev= 3.66, samples=147 write: IOPS=4, BW=67.4KiB/s (68.0kB/s)(6032KiB/89536msec); 0 zone resets clat (msec): min=51, max=518, avg=186.98, stdev=81.05 lat (msec): min=51, max=518, avg=186.99, stdev=81.05 clat percentiles (msec): | 1.00th=[ 72], 5.00th=[ 82], 10.00th=[ 101], 20.00th=[ 121], | 30.00th=[ 140], 40.00th=[ 155], 50.00th=[ 171], 60.00th=[ 186], | 70.00th=[ 211], 80.00th=[ 243], 90.00th=[ 300], 95.00th=[ 355], | 99.00th=[ 464], 99.50th=[ 477], 99.90th=[ 518], 99.95th=[ 518], | 99.99th=[ 518] bw ( KiB/s): min= 30, max= 159, per=25.86%, avg=69.58, stdev=28.27, samples=170 iops : min= 1, max= 9, avg= 3.54, stdev= 1.86, samples=170 lat (msec) : 10=0.65%, 20=10.16%, 50=27.34%, 100=12.24%, 250=40.23% lat (msec) : 500=9.11%, 750=0.26% cpu : usr=0.04%, sys=1.13%, ctx=1305, 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=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=144796: Sat Aug 22 05:08:26 2026 read: IOPS=4, BW=65.4KiB/s (66.0kB/s)(6032KiB/92229msec) clat (msec): min=9, max=334, avg=49.40, stdev=47.64 lat (msec): min=9, max=334, avg=49.40, stdev=47.64 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 13], 10.00th=[ 16], 20.00th=[ 21], | 30.00th=[ 25], 40.00th=[ 29], 50.00th=[ 33], 60.00th=[ 39], | 70.00th=[ 50], 80.00th=[ 67], 90.00th=[ 108], 95.00th=[ 161], | 99.00th=[ 247], 99.50th=[ 326], 99.90th=[ 334], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 30, max= 288, per=32.31%, avg=82.39, stdev=55.03, samples=143 iops : min= 1, max= 18, avg= 4.36, stdev= 3.50, samples=143 write: IOPS=4, BW=67.8KiB/s (69.5kB/s)(6256KiB/92229msec); 0 zone resets clat (msec): min=72, max=640, avg=187.78, stdev=86.78 lat (msec): min=72, max=640, avg=187.78, stdev=86.78 clat percentiles (msec): | 1.00th=[ 79], 5.00th=[ 88], 10.00th=[ 106], 20.00th=[ 121], | 30.00th=[ 140], 40.00th=[ 153], 50.00th=[ 167], 60.00th=[ 188], | 70.00th=[ 205], 80.00th=[ 239], 90.00th=[ 292], 95.00th=[ 355], | 99.00th=[ 498], 99.50th=[ 542], 99.90th=[ 642], 99.95th=[ 642], | 99.99th=[ 642] bw ( KiB/s): min= 31, max= 191, per=26.44%, avg=71.13, stdev=29.83, samples=172 iops : min= 1, max= 11, avg= 3.65, stdev= 1.96, samples=172 lat (msec) : 10=0.26%, 20=9.38%, 50=24.87%, 100=13.41%, 250=43.36% lat (msec) : 500=8.33%, 750=0.39% cpu : usr=0.03%, sys=1.12%, ctx=1318, 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=256KiB/s (262kB/s), 61.4KiB/s-69.9KiB/s (62.8kB/s-71.5kB/s), io=23.4MiB (24.5MB), run=89536-93585msec WRITE: bw=269KiB/s (276kB/s), 67.4KiB/s-69.9KiB/s (68.0kB/s-71.6kB/s), io=24.6MiB (25.8MB), run=89536-93585msec 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=144828: Sat Aug 22 05:08:46 2026 read: IOPS=0, BW=919KiB/s (941kB/s)(7168KiB/7798msec) clat (usec): min=1343, max=4320.1k, avg=761125.98, stdev=1574287.71 lat (usec): min=1345, max=4320.1k, avg=761128.70, stdev=1574287.18 clat percentiles (usec): | 1.00th=[ 1352], 5.00th=[ 1352], 10.00th=[ 1352], | 20.00th=[ 2933], 30.00th=[ 166724], 40.00th=[ 166724], | 50.00th=[ 250610], 60.00th=[ 291505], 70.00th=[ 291505], | 80.00th=[ 291505], 90.00th=[4328522], 95.00th=[4328522], | 99.00th=[4328522], 99.50th=[4328522], 99.90th=[4328522], | 99.95th=[4328522], 99.99th=[4328522] bw ( KiB/s): min= 1980, max= 4079, per=100.00%, avg=2822.25, stdev=1007.89, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 write: IOPS=0, BW=657KiB/s (672kB/s)(5120KiB/7798msec); 0 zone resets clat (msec): min=197, max=942, avg=480.30, stdev=280.51 lat (msec): min=197, max=942, avg=480.37, stdev=280.51 clat percentiles (msec): | 1.00th=[ 199], 5.00th=[ 199], 10.00th=[ 199], 20.00th=[ 199], | 30.00th=[ 355], 40.00th=[ 355], 50.00th=[ 409], 60.00th=[ 409], | 70.00th=[ 498], 80.00th=[ 498], 90.00th=[ 944], 95.00th=[ 944], | 99.00th=[ 944], 99.50th=[ 944], 99.90th=[ 944], 99.95th=[ 944], | 99.99th=[ 944] bw ( KiB/s): min= 1961, max= 3961, per=73.02%, avg=2493.00, stdev=979.17, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (msec) : 2=8.33%, 4=8.33%, 250=25.00%, 500=41.67%, 1000=8.33% lat (msec) : >=2000=8.33% cpu : usr=0.00%, sys=6.03%, ctx=498, 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=144829: Sat Aug 22 05:08:46 2026 read: IOPS=0, BW=244KiB/s (250kB/s)(2048KiB/8397msec) clat (msec): min=197, max=311, avg=254.57, stdev=80.84 lat (msec): min=197, max=311, avg=254.57, stdev=80.84 clat percentiles (msec): | 1.00th=[ 199], 5.00th=[ 199], 10.00th=[ 199], 20.00th=[ 199], | 30.00th=[ 199], 40.00th=[ 199], 50.00th=[ 199], 60.00th=[ 313], | 70.00th=[ 313], 80.00th=[ 313], 90.00th=[ 313], 95.00th=[ 313], | 99.00th=[ 313], 99.50th=[ 313], 99.90th=[ 313], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 1654, max= 2048, per=75.92%, avg=1851.00, stdev=278.60, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 write: IOPS=1, BW=1219KiB/s (1249kB/s)(10.0MiB/8397msec); 0 zone resets clat (msec): min=128, max=3362, avg=769.22, stdev=942.67 lat (msec): min=128, max=3362, avg=769.35, stdev=942.67 clat percentiles (msec): | 1.00th=[ 129], 5.00th=[ 129], 10.00th=[ 129], 20.00th=[ 222], | 30.00th=[ 334], 40.00th=[ 443], 50.00th=[ 472], 60.00th=[ 481], | 70.00th=[ 506], 80.00th=[ 844], 90.00th=[ 902], 95.00th=[ 3373], | 99.00th=[ 3373], 99.50th=[ 3373], 99.90th=[ 3373], 99.95th=[ 3373], | 99.99th=[ 3373] bw ( KiB/s): min= 1921, max= 3946, per=65.49%, avg=2235.88, stdev=692.31, samples=8 iops : min= 1, max= 3, avg= 1.38, stdev= 0.74, samples=8 lat (msec) : 250=25.00%, 500=41.67%, 750=8.33%, 1000=16.67%, >=2000=8.33% cpu : usr=0.00%, sys=5.84%, ctx=164, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144832: Sat Aug 22 05:08:46 2026 read: IOPS=0, BW=806KiB/s (826kB/s)(6144KiB/7619msec) clat (msec): min=148, max=335, avg=262.25, stdev=84.39 lat (msec): min=148, max=335, avg=262.25, stdev=84.39 clat percentiles (msec): | 1.00th=[ 148], 5.00th=[ 148], 10.00th=[ 148], 20.00th=[ 161], | 30.00th=[ 161], 40.00th=[ 296], 50.00th=[ 296], 60.00th=[ 313], | 70.00th=[ 317], 80.00th=[ 317], 90.00th=[ 334], 95.00th=[ 334], | 99.00th=[ 334], 99.50th=[ 334], 99.90th=[ 334], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 2015, max= 3915, per=100.00%, avg=3257.33, stdev=1076.51, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=0, BW=806KiB/s (826kB/s)(6144KiB/7619msec); 0 zone resets clat (msec): min=241, max=3632, avg=977.47, stdev=1309.84 lat (msec): min=241, max=3633, avg=977.60, stdev=1309.91 clat percentiles (msec): | 1.00th=[ 243], 5.00th=[ 243], 10.00th=[ 243], 20.00th=[ 313], | 30.00th=[ 313], 40.00th=[ 447], 50.00th=[ 447], 60.00th=[ 592], | 70.00th=[ 642], 80.00th=[ 642], 90.00th=[ 3641], 95.00th=[ 3641], | 99.00th=[ 3641], 99.50th=[ 3641], 99.90th=[ 3641], 99.95th=[ 3641], | 99.99th=[ 3641] bw ( KiB/s): min= 1625, max= 2039, per=56.75%, avg=1937.40, stdev=176.59, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 250=25.00%, 500=50.00%, 750=16.67%, >=2000=8.33% cpu : usr=0.00%, sys=5.63%, ctx=142, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144833: Sat Aug 22 05:08:46 2026 read: IOPS=0, BW=720KiB/s (738kB/s)(5120KiB/7108msec) clat (usec): min=614, max=284835, avg=131042.22, stdev=128375.56 lat (usec): min=616, max=284837, avg=131044.02, stdev=128375.21 clat percentiles (usec): | 1.00th=[ 611], 5.00th=[ 611], 10.00th=[ 611], 20.00th=[ 611], | 30.00th=[ 1385], 40.00th=[ 1385], 50.00th=[145753], 60.00th=[145753], | 70.00th=[221250], 80.00th=[221250], 90.00th=[283116], 95.00th=[283116], | 99.00th=[283116], 99.50th=[283116], 99.90th=[283116], 99.95th=[283116], | 99.99th=[283116] bw ( KiB/s): min= 3915, max= 4031, per=100.00%, avg=3973.00, stdev=82.02, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=0, BW=1008KiB/s (1033kB/s)(7168KiB/7108msec); 0 zone resets clat (msec): min=156, max=3698, avg=894.86, stdev=1265.89 lat (msec): min=156, max=3698, avg=894.97, stdev=1265.89 clat percentiles (msec): | 1.00th=[ 157], 5.00th=[ 157], 10.00th=[ 157], 20.00th=[ 178], | 30.00th=[ 215], 40.00th=[ 215], 50.00th=[ 481], 60.00th=[ 651], | 70.00th=[ 651], 80.00th=[ 885], 90.00th=[ 3708], 95.00th=[ 3708], | 99.00th=[ 3708], 99.50th=[ 3708], 99.90th=[ 3708], 99.95th=[ 3708], | 99.99th=[ 3708] bw ( KiB/s): min= 2035, max= 3842, per=77.29%, avg=2638.67, stdev=1042.12, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (usec) : 750=8.33% lat (msec) : 2=8.33%, 250=41.67%, 500=16.67%, 750=8.33%, 1000=8.33% lat (msec) : >=2000=8.33% cpu : usr=0.03%, sys=4.31%, ctx=101, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=2439KiB/s (2498kB/s), 244KiB/s-919KiB/s (250kB/s-941kB/s), io=20.0MiB (20.0MB), run=7108-8397msec WRITE: bw=3415KiB/s (3497kB/s), 657KiB/s-1219KiB/s (672kB/s-1249kB/s), io=28.0MiB (29.4MB), run=7108-8397msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144835: Sat Aug 22 05:08:47 2026 read: IOPS=0, BW=957KiB/s (980kB/s)(7168KiB/7488msec) clat (msec): min=154, max=3262, avg=684.88, stdev=1146.16 lat (msec): min=154, max=3262, avg=684.88, stdev=1146.16 clat percentiles (msec): | 1.00th=[ 155], 5.00th=[ 155], 10.00th=[ 155], 20.00th=[ 159], | 30.00th=[ 178], 40.00th=[ 178], 50.00th=[ 207], 60.00th=[ 255], | 70.00th=[ 255], 80.00th=[ 584], 90.00th=[ 3272], 95.00th=[ 3272], | 99.00th=[ 3272], 99.50th=[ 3272], 99.90th=[ 3272], 99.95th=[ 3272], | 99.99th=[ 3272] bw ( KiB/s): min= 1689, max= 3871, per=91.28%, avg=2333.00, stdev=872.74, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 write: IOPS=0, BW=684KiB/s (700kB/s)(5120KiB/7488msec); 0 zone resets clat (msec): min=332, max=701, avg=504.56, stdev=139.22 lat (msec): min=332, max=701, avg=504.69, stdev=139.22 clat percentiles (msec): | 1.00th=[ 334], 5.00th=[ 334], 10.00th=[ 334], 20.00th=[ 334], | 30.00th=[ 418], 40.00th=[ 418], 50.00th=[ 531], 60.00th=[ 531], | 70.00th=[ 542], 80.00th=[ 542], 90.00th=[ 701], 95.00th=[ 701], | 99.00th=[ 701], 99.50th=[ 701], 99.90th=[ 701], 99.95th=[ 701], | 99.99th=[ 701] bw ( KiB/s): min= 1996, max= 2048, per=56.68%, avg=2028.50, stdev=23.44, samples=4 iops : min= 1, max= 2, avg= 1.25, stdev= 0.50, samples=4 lat (msec) : 250=33.33%, 500=25.00%, 750=33.33%, >=2000=8.33% cpu : usr=0.00%, sys=2.47%, ctx=72, 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=144836: Sat Aug 22 05:08:47 2026 read: IOPS=0, BW=256KiB/s (262kB/s)(2048KiB/8011msec) clat (msec): min=84, max=175, avg=129.62, stdev=64.25 lat (msec): min=84, max=175, avg=129.63, stdev=64.26 clat percentiles (msec): | 1.00th=[ 85], 5.00th=[ 85], 10.00th=[ 85], 20.00th=[ 85], | 30.00th=[ 85], 40.00th=[ 85], 50.00th=[ 85], 60.00th=[ 176], | 70.00th=[ 176], 80.00th=[ 176], 90.00th=[ 176], 95.00th=[ 176], | 99.00th=[ 176], 99.50th=[ 176], 99.90th=[ 176], 99.95th=[ 176], | 99.99th=[ 176] bw ( KiB/s): min= 1818, max= 2039, per=75.45%, avg=1928.50, stdev=156.27, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1278KiB/s (1309kB/s)(10.0MiB/8011msec); 0 zone resets clat (msec): min=184, max=3281, avg=756.26, stdev=916.99 lat (msec): min=185, max=3281, avg=756.53, stdev=916.86 clat percentiles (msec): | 1.00th=[ 184], 5.00th=[ 184], 10.00th=[ 184], 20.00th=[ 239], | 30.00th=[ 342], 40.00th=[ 347], 50.00th=[ 355], 60.00th=[ 460], | 70.00th=[ 743], 80.00th=[ 776], 90.00th=[ 835], 95.00th=[ 3272], | 99.00th=[ 3272], 99.50th=[ 3272], 99.90th=[ 3272], 99.95th=[ 3272], | 99.99th=[ 3272] bw ( KiB/s): min= 2035, max= 4079, per=75.86%, avg=2715.17, stdev=1047.16, samples=6 iops : min= 1, max= 3, avg= 1.83, stdev= 0.98, samples=6 lat (msec) : 100=8.33%, 250=25.00%, 500=33.33%, 750=8.33%, 1000=16.67% lat (msec) : >=2000=8.33% cpu : usr=0.01%, sys=1.97%, ctx=60, 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=144837: Sat Aug 22 05:08:47 2026 read: IOPS=0, BW=882KiB/s (903kB/s)(6144KiB/6965msec) clat (msec): min=96, max=192, avg=137.54, stdev=32.25 lat (msec): min=96, max=192, avg=137.54, stdev=32.25 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 96], 10.00th=[ 96], 20.00th=[ 121], | 30.00th=[ 121], 40.00th=[ 132], 50.00th=[ 132], 60.00th=[ 142], | 70.00th=[ 144], 80.00th=[ 144], 90.00th=[ 194], 95.00th=[ 194], | 99.00th=[ 194], 99.50th=[ 194], 99.90th=[ 194], 99.95th=[ 194], | 99.99th=[ 194] bw ( KiB/s): min= 1996, max= 2048, per=79.41%, avg=2029.80, stdev=20.32, samples=5 iops : min= 1, max= 2, avg= 1.20, stdev= 0.45, samples=5 write: IOPS=0, BW=882KiB/s (903kB/s)(6144KiB/6965msec); 0 zone resets clat (msec): min=329, max=3318, avg=992.60, stdev=1162.71 lat (msec): min=329, max=3318, avg=992.77, stdev=1162.70 clat percentiles (msec): | 1.00th=[ 330], 5.00th=[ 330], 10.00th=[ 330], 20.00th=[ 372], | 30.00th=[ 372], 40.00th=[ 464], 50.00th=[ 464], 60.00th=[ 498], | 70.00th=[ 978], 80.00th=[ 978], 90.00th=[ 3306], 95.00th=[ 3306], | 99.00th=[ 3306], 99.50th=[ 3306], 99.90th=[ 3306], 99.95th=[ 3306], | 99.99th=[ 3306] bw ( KiB/s): min= 1812, max= 2048, per=55.42%, avg=1983.60, stdev=97.82, samples=5 iops : min= 1, max= 2, avg= 1.20, stdev= 0.45, samples=5 lat (msec) : 100=8.33%, 250=41.67%, 500=33.33%, 1000=8.33%, >=2000=8.33% cpu : usr=0.01%, sys=2.18%, ctx=42, 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=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=144838: Sat Aug 22 05:08:47 2026 read: IOPS=0, BW=682KiB/s (699kB/s)(5120KiB/7502msec) clat (msec): min=160, max=894, avg=313.20, stdev=325.29 lat (msec): min=160, max=894, avg=313.20, stdev=325.29 clat percentiles (msec): | 1.00th=[ 161], 5.00th=[ 161], 10.00th=[ 161], 20.00th=[ 161], | 30.00th=[ 165], 40.00th=[ 165], 50.00th=[ 174], 60.00th=[ 174], | 70.00th=[ 176], 80.00th=[ 176], 90.00th=[ 894], 95.00th=[ 894], | 99.00th=[ 894], 99.50th=[ 894], 99.90th=[ 894], 99.95th=[ 894], | 99.99th=[ 894] bw ( KiB/s): min= 3886, max= 4079, per=100.00%, avg=3982.50, stdev=136.47, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=0, BW=955KiB/s (978kB/s)(7168KiB/7502msec); 0 zone resets clat (msec): min=335, max=2700, avg=826.16, stdev=850.89 lat (msec): min=335, max=2700, avg=826.27, stdev=850.89 clat percentiles (msec): | 1.00th=[ 338], 5.00th=[ 338], 10.00th=[ 338], 20.00th=[ 338], | 30.00th=[ 376], 40.00th=[ 376], 50.00th=[ 502], 60.00th=[ 634], | 70.00th=[ 634], 80.00th=[ 902], 90.00th=[ 2702], 95.00th=[ 2702], | 99.00th=[ 2702], 99.50th=[ 2702], 99.90th=[ 2702], 99.95th=[ 2702], | 99.99th=[ 2702] bw ( KiB/s): min= 1939, max= 4096, per=79.25%, avg=2836.20, stdev=1139.39, samples=5 iops : min= 1, max= 4, avg= 2.20, stdev= 1.30, samples=5 lat (msec) : 250=33.33%, 500=25.00%, 750=16.67%, 1000=16.67%, >=2000=8.33% cpu : usr=0.00%, sys=2.09%, ctx=65, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=2556KiB/s (2618kB/s), 256KiB/s-957KiB/s (262kB/s-980kB/s), io=20.0MiB (20.0MB), run=6965-8011msec WRITE: bw=3579KiB/s (3665kB/s), 684KiB/s-1278KiB/s (700kB/s-1309kB/s), io=28.0MiB (29.4MB), run=6965-8011msec 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=144848: Sat Aug 22 05:09:08 2026 read: IOPS=0, BW=2032KiB/s (2081kB/s)(12.0MiB/6048msec) clat (msec): min=1087, max=3575, avg=1946.22, stdev=1411.29 lat (msec): min=1087, max=3575, avg=1946.22, stdev=1411.29 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=[ 3574], 80.00th=[ 3574], 90.00th=[ 3574], 95.00th=[ 3574], | 99.00th=[ 3574], 99.50th=[ 3574], 99.90th=[ 3574], 99.95th=[ 3574], | 99.99th=[ 3574] bw ( KiB/s): min= 8062, max= 8078, per=100.00%, avg=8070.00, stdev=11.31, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 2000=66.67%, >=2000=33.33% cpu : usr=0.00%, sys=5.51%, ctx=304, 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=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=144850: Sat Aug 22 05:09:08 2026 read: IOPS=0, BW=601KiB/s (616kB/s)(4096KiB/6813msec) clat (nsec): min=3643.3M, max=3643.3M, avg=3643292715.00, stdev= 0.00 lat (nsec): min=3643.3M, max=3643.3M, avg=3643295147.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 3641], 5.00th=[ 3641], 10.00th=[ 3641], 20.00th=[ 3641], | 30.00th=[ 3641], 40.00th=[ 3641], 50.00th=[ 3641], 60.00th=[ 3641], | 70.00th=[ 3641], 80.00th=[ 3641], 90.00th=[ 3641], 95.00th=[ 3641], | 99.00th=[ 3641], 99.50th=[ 3641], 99.90th=[ 3641], 99.95th=[ 3641], | 99.99th=[ 3641] bw ( KiB/s): min= 8126, max= 8126, per=100.00%, avg=8126.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=1202KiB/s (1231kB/s)(8192KiB/6813msec); 0 zone resets clat (msec): min=1109, max=2000, avg=1555.29, stdev=630.31 lat (msec): min=1110, max=2001, avg=1555.75, stdev=630.26 clat percentiles (msec): | 1.00th=[ 1116], 5.00th=[ 1116], 10.00th=[ 1116], 20.00th=[ 1116], | 30.00th=[ 1116], 40.00th=[ 1116], 50.00th=[ 1116], 60.00th=[ 2005], | 70.00th=[ 2005], 80.00th=[ 2005], 90.00th=[ 2005], 95.00th=[ 2005], | 99.00th=[ 2005], 99.50th=[ 2005], 99.90th=[ 2005], 99.95th=[ 2005], | 99.99th=[ 2005] bw ( KiB/s): min= 8062, max= 8062, per=100.00%, avg=8062.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 2000=33.33%, >=2000=66.67% cpu : usr=0.01%, sys=3.49%, ctx=500, 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=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144853: Sat Aug 22 05:09:08 2026 write: IOPS=0, BW=2139KiB/s (2190kB/s)(12.0MiB/5745msec); 0 zone resets clat (msec): min=670, max=3340, avg=1886.09, stdev=1350.82 lat (msec): min=671, max=3341, avg=1886.61, stdev=1350.82 clat percentiles (msec): | 1.00th=[ 667], 5.00th=[ 667], 10.00th=[ 667], 20.00th=[ 667], | 30.00th=[ 667], 40.00th=[ 1653], 50.00th=[ 1653], 60.00th=[ 1653], | 70.00th=[ 3339], 80.00th=[ 3339], 90.00th=[ 3339], 95.00th=[ 3339], | 99.00th=[ 3339], 99.50th=[ 3339], 99.90th=[ 3339], 99.95th=[ 3339], | 99.99th=[ 3339] bw ( KiB/s): min= 8062, max= 8094, per=100.00%, avg=8078.00, stdev=22.63, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=2.07%, ctx=50, 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 rand-rw: (groupid=0, jobs=1): err= 0: pid=144854: Sat Aug 22 05:09:08 2026 write: IOPS=0, BW=1809KiB/s (1852kB/s)(12.0MiB/6794msec); 0 zone resets clat (msec): min=1019, max=3990, avg=2179.76, stdev=1588.84 lat (msec): min=1020, max=3990, avg=2181.25, stdev=1588.04 clat percentiles (msec): | 1.00th=[ 1020], 5.00th=[ 1020], 10.00th=[ 1020], 20.00th=[ 1020], | 30.00th=[ 1020], 40.00th=[ 1536], 50.00th=[ 1536], 60.00th=[ 1536], | 70.00th=[ 3977], 80.00th=[ 3977], 90.00th=[ 3977], 95.00th=[ 3977], | 99.00th=[ 3977], 99.50th=[ 3977], 99.90th=[ 3977], 99.95th=[ 3977], | 99.99th=[ 3977] bw ( KiB/s): min= 8062, max= 8078, per=100.00%, avg=8070.00, stdev=11.31, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 2000=66.67%, >=2000=33.33% cpu : usr=0.00%, sys=1.59%, ctx=53, 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=2405KiB/s (2463kB/s), 601KiB/s-2032KiB/s (616kB/s-2081kB/s), io=16.0MiB (16.8MB), run=6048-6813msec WRITE: bw=4810KiB/s (4925kB/s), 1202KiB/s-2139KiB/s (1231kB/s-2190kB/s), io=32.0MiB (33.6MB), run=5745-6813msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144847: Sat Aug 22 05:09:08 2026 read: IOPS=0, BW=1813KiB/s (1856kB/s)(12.0MiB/6779msec) clat (msec): min=511, max=4337, avg=2181.05, stdev=1958.84 lat (msec): min=511, max=4337, avg=2181.05, stdev=1958.85 clat percentiles (msec): | 1.00th=[ 510], 5.00th=[ 510], 10.00th=[ 510], 20.00th=[ 510], | 30.00th=[ 510], 40.00th=[ 1687], 50.00th=[ 1687], 60.00th=[ 1687], | 70.00th=[ 4329], 80.00th=[ 4329], 90.00th=[ 4329], 95.00th=[ 4329], | 99.00th=[ 4329], 99.50th=[ 4329], 99.90th=[ 4329], 99.95th=[ 4329], | 99.99th=[ 4329] bw ( KiB/s): min= 7907, max= 8126, per=100.00%, avg=8016.50, stdev=154.86, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=1.39%, ctx=92, 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=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=144849: Sat Aug 22 05:09:08 2026 read: IOPS=0, BW=553KiB/s (566kB/s)(4096KiB/7407msec) clat (nsec): min=3997.4M, max=3997.4M, avg=3997353102.00, stdev= 0.00 lat (nsec): min=3997.4M, max=3997.4M, avg=3997358298.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 4010], 5.00th=[ 4010], 10.00th=[ 4010], 20.00th=[ 4010], | 30.00th=[ 4010], 40.00th=[ 4010], 50.00th=[ 4010], 60.00th=[ 4010], | 70.00th=[ 4010], 80.00th=[ 4010], 90.00th=[ 4010], 95.00th=[ 4010], | 99.00th=[ 4010], 99.50th=[ 4010], 99.90th=[ 4010], 99.95th=[ 4010], | 99.99th=[ 4010] bw ( KiB/s): min= 8126, max= 8126, per=100.00%, avg=8126.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=1106KiB/s (1133kB/s)(8192KiB/7407msec); 0 zone resets clat (msec): min=948, max=2196, avg=1572.46, stdev=882.85 lat (msec): min=950, max=2197, avg=1574.07, stdev=881.19 clat percentiles (msec): | 1.00th=[ 953], 5.00th=[ 953], 10.00th=[ 953], 20.00th=[ 953], | 30.00th=[ 953], 40.00th=[ 953], 50.00th=[ 953], 60.00th=[ 2198], | 70.00th=[ 2198], 80.00th=[ 2198], 90.00th=[ 2198], 95.00th=[ 2198], | 99.00th=[ 2198], 99.50th=[ 2198], 99.90th=[ 2198], 99.95th=[ 2198], | 99.99th=[ 2198] bw ( KiB/s): min= 7907, max= 7907, per=100.00%, avg=7907.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 1000=33.33%, >=2000=66.67% cpu : usr=0.00%, sys=1.39%, ctx=47, 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=144851: Sat Aug 22 05:09:08 2026 write: IOPS=0, BW=1659KiB/s (1699kB/s)(12.0MiB/7405msec); 0 zone resets clat (msec): min=363, max=5538, avg=2384.22, stdev=2767.08 lat (msec): min=366, max=5541, avg=2386.47, stdev=2768.23 clat percentiles (msec): | 1.00th=[ 363], 5.00th=[ 363], 10.00th=[ 363], 20.00th=[ 363], | 30.00th=[ 363], 40.00th=[ 1250], 50.00th=[ 1250], 60.00th=[ 1250], | 70.00th=[ 5537], 80.00th=[ 5537], 90.00th=[ 5537], 95.00th=[ 5537], | 99.00th=[ 5537], 99.50th=[ 5537], 99.90th=[ 5537], 99.95th=[ 5537], | 99.99th=[ 5537] bw ( KiB/s): min= 7968, max= 8047, per=100.00%, avg=8007.50, stdev=55.86, 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=1.66%, ctx=60, 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 rand-rw: (groupid=0, jobs=1): err= 0: pid=144852: Sat Aug 22 05:09:08 2026 write: IOPS=0, BW=1930KiB/s (1976kB/s)(12.0MiB/6367msec); 0 zone resets clat (msec): min=1281, max=3360, avg=2087.56, stdev=1115.32 lat (msec): min=1284, max=3362, avg=2089.36, stdev=1115.71 clat percentiles (msec): | 1.00th=[ 1284], 5.00th=[ 1284], 10.00th=[ 1284], 20.00th=[ 1284], | 30.00th=[ 1284], 40.00th=[ 1620], 50.00th=[ 1620], 60.00th=[ 1620], | 70.00th=[ 3373], 80.00th=[ 3373], 90.00th=[ 3373], 95.00th=[ 3373], | 99.00th=[ 3373], 99.50th=[ 3373], 99.90th=[ 3373], 99.95th=[ 3373], | 99.99th=[ 3373] bw ( KiB/s): min= 8094, max= 8175, per=100.00%, avg=8134.50, stdev=57.28, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 2000=66.67%, >=2000=33.33% cpu : usr=0.00%, sys=2.32%, ctx=44, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=2212KiB/s (2265kB/s), 553KiB/s-1813KiB/s (566kB/s-1856kB/s), io=16.0MiB (16.8MB), run=6779-7407msec WRITE: bw=4424KiB/s (4530kB/s), 1106KiB/s-1930KiB/s (1133kB/s-1976kB/s), io=32.0MiB (33.6MB), run=6367-7407msec