== sanity test 398b: DIO and buffer IO race ============== 06:02:02 (1787392922) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 6.57406 s, 7.7 MB/s mix direct rw 4096 by fio with 4 jobs... mix buffer rw 4096 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=144214: Sat Aug 22 06:04:54 2026 read: IOPS=9, BW=39.7KiB/s (40.6kB/s)(5992KiB/150998msec) clat (usec): min=31, max=726147, avg=48277.94, stdev=44005.25 lat (usec): min=31, max=726150, avg=48279.38, stdev=44005.32 clat percentiles (usec): | 1.00th=[ 47], 5.00th=[ 59], 10.00th=[ 73], 20.00th=[ 20579], | 30.00th=[ 27395], 40.00th=[ 33817], 50.00th=[ 40633], 60.00th=[ 50594], | 70.00th=[ 60031], 80.00th=[ 74974], 90.00th=[ 93848], 95.00th=[109577], | 99.00th=[181404], 99.50th=[235930], 99.90th=[683672], 99.95th=[725615], | 99.99th=[725615] bw ( KiB/s): min= 7, max= 110, per=25.29%, avg=39.97, stdev=18.18, samples=290 iops : min= 1, max= 27, avg= 9.32, stdev= 4.59, samples=290 write: IOPS=10, BW=41.7KiB/s (42.7kB/s)(6296KiB/150998msec); 0 zone resets clat (usec): min=796, max=289439, avg=49680.33, stdev=49033.87 lat (usec): min=797, max=289440, avg=49684.01, stdev=49033.30 clat percentiles (usec): | 1.00th=[ 1237], 5.00th=[ 1434], 10.00th=[ 1958], 20.00th=[ 5473], | 30.00th=[ 10552], 40.00th=[ 23462], 50.00th=[ 37487], 60.00th=[ 51119], | 70.00th=[ 68682], 80.00th=[ 88605], 90.00th=[115868], 95.00th=[143655], | 99.00th=[206570], 99.50th=[233833], 99.90th=[274727], 99.95th=[291505], | 99.99th=[291505] bw ( KiB/s): min= 7, max= 150, per=25.32%, avg=41.78, stdev=18.67, samples=292 iops : min= 1, max= 37, avg= 9.78, stdev= 4.71, samples=292 lat (usec) : 50=0.72%, 100=5.14%, 250=0.49%, 500=0.10%, 750=0.07% lat (usec) : 1000=0.23% lat (msec) : 2=5.21%, 4=2.83%, 10=7.45%, 20=6.77%, 50=30.27% lat (msec) : 100=29.20%, 250=11.20%, 500=0.26%, 750=0.07% cpu : usr=0.07%, sys=4.50%, ctx=6445, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144216: Sat Aug 22 06:04:54 2026 read: IOPS=9, BW=39.8KiB/s (40.8kB/s)(5940KiB/149231msec) clat (usec): min=22, max=464859, avg=46368.46, stdev=36726.55 lat (usec): min=22, max=464861, avg=46371.02, stdev=36725.90 clat percentiles (usec): | 1.00th=[ 43], 5.00th=[ 59], 10.00th=[ 74], 20.00th=[ 20055], | 30.00th=[ 27132], 40.00th=[ 33424], 50.00th=[ 39584], 60.00th=[ 47449], | 70.00th=[ 58983], 80.00th=[ 72877], 90.00th=[ 91751], 95.00th=[107480], | 99.00th=[160433], 99.50th=[181404], 99.90th=[278922], 99.95th=[463471], | 99.99th=[463471] bw ( KiB/s): min= 5, max= 95, per=25.18%, avg=39.78, stdev=17.90, samples=290 iops : min= 1, max= 23, avg= 9.28, stdev= 4.53, samples=290 write: IOPS=10, BW=42.5KiB/s (43.6kB/s)(6348KiB/149231msec); 0 zone resets clat (usec): min=891, max=733205, avg=50350.97, stdev=55018.74 lat (usec): min=892, max=733206, avg=50354.56, stdev=55020.90 clat percentiles (usec): | 1.00th=[ 1254], 5.00th=[ 1418], 10.00th=[ 1942], 20.00th=[ 5735], | 30.00th=[ 10159], 40.00th=[ 22414], 50.00th=[ 35390], 60.00th=[ 50594], | 70.00th=[ 65799], 80.00th=[ 85459], 90.00th=[119014], 95.00th=[152044], | 99.00th=[229639], 99.50th=[261096], 99.90th=[480248], 99.95th=[734004], | 99.99th=[734004] bw ( KiB/s): min= 7, max= 112, per=25.64%, avg=42.31, stdev=19.33, samples=291 iops : min= 1, max= 28, avg= 9.91, stdev= 4.87, samples=291 lat (usec) : 50=0.75%, 100=5.18%, 250=0.55%, 500=0.20%, 750=0.07% lat (usec) : 1000=0.07% lat (msec) : 2=5.31%, 4=3.12%, 10=7.16%, 20=6.84%, 50=31.80% lat (msec) : 100=28.35%, 250=10.16%, 500=0.42%, 750=0.03% cpu : usr=0.07%, sys=4.68%, ctx=6401, 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=144218: Sat Aug 22 06:04:54 2026 read: IOPS=10, BW=40.2KiB/s (41.2kB/s)(6028KiB/149767msec) clat (usec): min=28, max=353830, avg=47390.90, stdev=38061.24 lat (usec): min=28, max=353832, avg=47392.42, stdev=38061.24 clat percentiles (usec): | 1.00th=[ 42], 5.00th=[ 59], 10.00th=[ 75], 20.00th=[ 20317], | 30.00th=[ 27657], 40.00th=[ 33817], 50.00th=[ 40109], 60.00th=[ 47449], | 70.00th=[ 58983], 80.00th=[ 73925], 90.00th=[ 92799], 95.00th=[112722], | 99.00th=[183501], 99.50th=[219153], 99.90th=[291505], 99.95th=[354419], | 99.99th=[354419] bw ( KiB/s): min= 7, max= 110, per=25.27%, avg=39.92, stdev=18.47, samples=293 iops : min= 1, max= 27, avg= 9.31, stdev= 4.66, samples=293 write: IOPS=10, BW=41.8KiB/s (42.8kB/s)(6260KiB/149767msec); 0 zone resets clat (usec): min=850, max=711926, avg=49784.67, stdev=54565.03 lat (usec): min=851, max=711928, avg=49791.87, stdev=54561.40 clat percentiles (usec): | 1.00th=[ 1237], 5.00th=[ 1418], 10.00th=[ 1926], 20.00th=[ 5735], | 30.00th=[ 10028], 40.00th=[ 21103], 50.00th=[ 35914], 60.00th=[ 49546], | 70.00th=[ 65274], 80.00th=[ 83362], 90.00th=[113771], 95.00th=[149947], | 99.00th=[231736], 99.50th=[283116], 99.90th=[396362], 99.95th=[708838], | 99.99th=[708838] bw ( KiB/s): min= 7, max= 103, per=25.15%, avg=41.49, stdev=19.15, samples=293 iops : min= 1, max= 25, avg= 9.71, stdev= 4.83, samples=293 lat (usec) : 50=0.91%, 100=5.11%, 250=0.55%, 500=0.20%, 1000=0.13% lat (msec) : 2=5.31%, 4=3.29%, 10=7.19%, 20=6.87%, 50=32.03% lat (msec) : 100=27.70%, 250=10.29%, 500=0.39%, 750=0.03% cpu : usr=0.07%, sys=4.64%, ctx=6387, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144220: Sat Aug 22 06:04:54 2026 read: IOPS=9, BW=39.9KiB/s (40.9kB/s)(6052KiB/151627msec) clat (usec): min=21, max=745800, avg=47426.80, stdev=39871.04 lat (usec): min=22, max=745801, avg=47432.56, stdev=39870.45 clat percentiles (usec): | 1.00th=[ 39], 5.00th=[ 61], 10.00th=[ 85], 20.00th=[ 20055], | 30.00th=[ 27395], 40.00th=[ 33817], 50.00th=[ 40109], 60.00th=[ 48497], | 70.00th=[ 59507], 80.00th=[ 73925], 90.00th=[ 93848], 95.00th=[111674], | 99.00th=[162530], 99.50th=[183501], 99.90th=[329253], 99.95th=[742392], | 99.99th=[742392] bw ( KiB/s): min= 5, max= 104, per=25.09%, avg=39.64, stdev=19.06, samples=297 iops : min= 1, max= 26, avg= 9.24, stdev= 4.81, samples=297 write: IOPS=10, BW=41.1KiB/s (42.1kB/s)(6236KiB/151627msec); 0 zone resets clat (usec): min=891, max=375448, avg=51003.08, stdev=50986.18 lat (usec): min=892, max=375450, avg=51007.89, stdev=50983.65 clat percentiles (usec): | 1.00th=[ 1270], 5.00th=[ 1434], 10.00th=[ 1991], 20.00th=[ 5800], | 30.00th=[ 11994], 40.00th=[ 23725], 50.00th=[ 38536], 60.00th=[ 53216], | 70.00th=[ 68682], 80.00th=[ 87557], 90.00th=[115868], 95.00th=[147850], | 99.00th=[229639], 99.50th=[267387], 99.90th=[320865], 99.95th=[375391], | 99.99th=[375391] bw ( KiB/s): min= 7, max= 133, per=24.57%, avg=40.55, stdev=18.87, samples=299 iops : min= 1, max= 33, avg= 9.46, stdev= 4.74, samples=299 lat (usec) : 50=1.01%, 100=4.30%, 250=0.39%, 500=0.16%, 750=0.03% lat (usec) : 1000=0.16% lat (msec) : 2=5.31%, 4=2.73%, 10=6.61%, 20=8.11%, 50=30.70% lat (msec) : 100=29.04%, 250=11.04%, 500=0.39%, 750=0.03% cpu : usr=0.07%, sys=4.69%, ctx=6511, 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=158KiB/s (162kB/s), 39.7KiB/s-40.2KiB/s (40.6kB/s-41.2kB/s), io=23.4MiB (24.6MB), run=149231-151627msec WRITE: bw=166KiB/s (170kB/s), 41.1KiB/s-42.5KiB/s (42.1kB/s-43.6kB/s), io=24.6MiB (25.7MB), run=149231-151627msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144213: Sat Aug 22 06:07:26 2026 read: IOPS=4, BW=19.7KiB/s (20.2kB/s)(5992KiB/303917msec) clat (msec): min=5, max=758, avg=39.97, stdev=47.73 lat (msec): min=5, max=758, avg=39.97, stdev=47.73 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 25], 60.00th=[ 30], | 70.00th=[ 40], 80.00th=[ 54], 90.00th=[ 91], 95.00th=[ 131], | 99.00th=[ 201], 99.50th=[ 253], 99.90th=[ 468], 99.95th=[ 760], | 99.99th=[ 760] bw ( KiB/s): min= 7, max= 120, per=29.58%, avg=23.37, stdev=16.92, samples=494 iops : min= 1, max= 30, avg= 5.20, stdev= 4.28, samples=494 write: IOPS=5, BW=20.7KiB/s (21.2kB/s)(6296KiB/303917msec); 0 zone resets clat (msec): min=36, max=772, avg=154.81, stdev=84.19 lat (msec): min=36, max=772, avg=154.82, stdev=84.19 clat percentiles (msec): | 1.00th=[ 44], 5.00th=[ 58], 10.00th=[ 69], 20.00th=[ 86], | 30.00th=[ 99], 40.00th=[ 116], 50.00th=[ 134], 60.00th=[ 157], | 70.00th=[ 182], 80.00th=[ 222], 90.00th=[ 271], 95.00th=[ 317], | 99.00th=[ 414], 99.50th=[ 456], 99.90th=[ 743], 99.95th=[ 776], | 99.99th=[ 776] bw ( KiB/s): min= 7, max= 64, per=25.08%, avg=20.56, stdev=11.38, samples=586 iops : min= 1, max= 16, avg= 4.49, stdev= 2.91, samples=586 lat (msec) : 10=4.62%, 20=15.10%, 50=19.30%, 100=21.42%, 250=32.26% lat (msec) : 500=7.16%, 750=0.07%, 1000=0.07% cpu : usr=0.04%, sys=1.17%, ctx=5114, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144215: Sat Aug 22 06:07:26 2026 read: IOPS=4, BW=19.8KiB/s (20.2kB/s)(5940KiB/300631msec) clat (msec): min=5, max=764, avg=39.73, stdev=48.09 lat (msec): min=5, max=764, avg=39.74, stdev=48.09 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 24], 60.00th=[ 29], | 70.00th=[ 39], 80.00th=[ 55], 90.00th=[ 93], 95.00th=[ 124], | 99.00th=[ 203], 99.50th=[ 279], 99.90th=[ 567], 99.95th=[ 768], | 99.99th=[ 768] bw ( KiB/s): min= 7, max= 96, per=29.93%, avg=23.64, stdev=17.26, samples=484 iops : min= 1, max= 24, avg= 5.27, stdev= 4.38, samples=484 write: IOPS=5, BW=21.1KiB/s (21.6kB/s)(6348KiB/300631msec); 0 zone resets clat (msec): min=36, max=732, avg=152.03, stdev=82.48 lat (msec): min=36, max=732, avg=152.04, stdev=82.48 clat percentiles (msec): | 1.00th=[ 46], 5.00th=[ 58], 10.00th=[ 67], 20.00th=[ 83], | 30.00th=[ 99], 40.00th=[ 114], 50.00th=[ 131], 60.00th=[ 153], | 70.00th=[ 180], 80.00th=[ 213], 90.00th=[ 268], 95.00th=[ 313], | 99.00th=[ 414], 99.50th=[ 481], 99.90th=[ 584], 99.95th=[ 735], | 99.99th=[ 735] bw ( KiB/s): min= 7, max= 63, per=25.57%, avg=20.97, stdev=11.47, samples=581 iops : min= 1, max= 15, avg= 4.59, stdev= 2.93, samples=581 lat (msec) : 10=4.46%, 20=15.33%, 50=18.62%, 100=22.04%, 250=32.58% lat (msec) : 500=6.74%, 750=0.20%, 1000=0.03% cpu : usr=0.04%, sys=1.12%, ctx=5153, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144217: Sat Aug 22 06:07:26 2026 read: IOPS=4, BW=19.9KiB/s (20.4kB/s)(6028KiB/302791msec) clat (msec): min=5, max=496, avg=40.69, stdev=44.96 lat (msec): min=5, max=496, avg=40.69, stdev=44.96 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 21], 50.00th=[ 25], 60.00th=[ 31], | 70.00th=[ 41], 80.00th=[ 58], 90.00th=[ 93], 95.00th=[ 127], | 99.00th=[ 201], 99.50th=[ 249], 99.90th=[ 477], 99.95th=[ 498], | 99.99th=[ 498] bw ( KiB/s): min= 7, max= 111, per=28.47%, avg=22.49, stdev=16.64, samples=516 iops : min= 1, max= 27, avg= 4.98, stdev= 4.19, samples=516 write: IOPS=5, BW=20.7KiB/s (21.2kB/s)(6260KiB/302791msec); 0 zone resets clat (msec): min=34, max=870, avg=154.03, stdev=86.31 lat (msec): min=34, max=870, avg=154.03, stdev=86.31 clat percentiles (msec): | 1.00th=[ 46], 5.00th=[ 59], 10.00th=[ 69], 20.00th=[ 84], | 30.00th=[ 99], 40.00th=[ 114], 50.00th=[ 132], 60.00th=[ 155], | 70.00th=[ 180], 80.00th=[ 218], 90.00th=[ 275], 95.00th=[ 321], | 99.00th=[ 422], 99.50th=[ 468], 99.90th=[ 768], 99.95th=[ 869], | 99.99th=[ 869] bw ( KiB/s): min= 7, max= 64, per=25.31%, avg=20.76, stdev=11.59, samples=578 iops : min= 1, max= 16, avg= 4.54, stdev= 2.97, samples=578 lat (msec) : 10=3.61%, 20=15.63%, 50=19.79%, 100=21.68%, 250=32.42% lat (msec) : 500=6.77%, 750=0.03%, 1000=0.07% cpu : usr=0.04%, sys=1.16%, ctx=5159, 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=144219: Sat Aug 22 06:07:26 2026 read: IOPS=5, BW=20.0KiB/s (20.5kB/s)(6052KiB/301963msec) clat (msec): min=5, max=483, avg=39.15, stdev=39.82 lat (msec): min=5, max=483, avg=39.15, stdev=39.82 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 21], 50.00th=[ 25], 60.00th=[ 31], | 70.00th=[ 40], 80.00th=[ 58], 90.00th=[ 90], 95.00th=[ 121], | 99.00th=[ 188], 99.50th=[ 215], 99.90th=[ 288], 99.95th=[ 485], | 99.99th=[ 485] bw ( KiB/s): min= 7, max= 128, per=30.37%, avg=23.99, stdev=17.20, samples=486 iops : min= 1, max= 32, avg= 5.35, stdev= 4.36, samples=486 write: IOPS=5, BW=20.7KiB/s (21.1kB/s)(6236KiB/301963msec); 0 zone resets clat (msec): min=29, max=976, avg=155.46, stdev=84.52 lat (msec): min=29, max=976, avg=155.46, stdev=84.52 clat percentiles (msec): | 1.00th=[ 44], 5.00th=[ 59], 10.00th=[ 70], 20.00th=[ 87], | 30.00th=[ 101], 40.00th=[ 116], 50.00th=[ 134], 60.00th=[ 155], | 70.00th=[ 186], 80.00th=[ 220], 90.00th=[ 271], 95.00th=[ 313], | 99.00th=[ 418], 99.50th=[ 460], 99.90th=[ 701], 99.95th=[ 978], | 99.99th=[ 978] bw ( KiB/s): min= 7, max= 64, per=25.05%, avg=20.54, stdev=11.10, samples=581 iops : min= 1, max= 16, avg= 4.49, stdev= 2.84, samples=581 lat (msec) : 10=4.04%, 20=15.49%, 50=19.43%, 100=21.16%, 250=33.07% lat (msec) : 500=6.67%, 750=0.10%, 1000=0.03% cpu : usr=0.04%, sys=1.18%, ctx=5068, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=79.0KiB/s (80.9kB/s), 19.7KiB/s-20.0KiB/s (20.2kB/s-20.5kB/s), io=23.4MiB (24.6MB), run=300631-303917msec WRITE: bw=82.7KiB/s (84.7kB/s), 20.7KiB/s-21.1KiB/s (21.1kB/s-21.6kB/s), io=24.6MiB (25.7MB), run=300631-303917msec 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=144276: Sat Aug 22 06:08:08 2026 read: IOPS=12, BW=206KiB/s (211kB/s)(5920KiB/28694msec) clat (usec): min=32, max=180288, avg=41810.71, stdev=31778.01 lat (usec): min=33, max=180289, avg=41812.34, stdev=31778.00 clat percentiles (usec): | 1.00th=[ 41], 5.00th=[ 57], 10.00th=[ 68], 20.00th=[ 17695], | 30.00th=[ 25822], 40.00th=[ 31851], 50.00th=[ 36963], 60.00th=[ 44303], | 70.00th=[ 52167], 80.00th=[ 66847], 90.00th=[ 84411], 95.00th=[ 99091], | 99.00th=[147850], 99.50th=[154141], 99.90th=[179307], 99.95th=[179307], | 99.99th=[179307] bw ( KiB/s): min= 63, max= 416, per=24.30%, avg=202.64, stdev=87.19, samples=56 iops : min= 3, max= 26, avg=11.89, stdev= 5.55, samples=56 write: IOPS=13, BW=222KiB/s (227kB/s)(6368KiB/28694msec); 0 zone resets clat (usec): min=1467, max=377783, avg=32423.41, stdev=38980.24 lat (usec): min=1469, max=377783, avg=32425.51, stdev=38980.24 clat percentiles (usec): | 1.00th=[ 1614], 5.00th=[ 1844], 10.00th=[ 2278], 20.00th=[ 4080], | 30.00th=[ 7898], 40.00th=[ 12387], 50.00th=[ 19268], 60.00th=[ 26870], | 70.00th=[ 36963], 80.00th=[ 54264], 90.00th=[ 79168], 95.00th=[102237], | 99.00th=[164627], 99.50th=[233833], 99.90th=[379585], 99.95th=[379585], | 99.99th=[379585] bw ( KiB/s): min= 61, max= 571, per=25.54%, avg=224.20, stdev=107.90, samples=55 iops : min= 3, max= 35, avg=13.25, stdev= 6.86, samples=55 lat (usec) : 50=1.43%, 100=6.38%, 250=0.13%, 750=0.13% lat (msec) : 2=5.08%, 4=5.34%, 10=7.68%, 20=11.46%, 50=35.16% lat (msec) : 100=22.01%, 250=5.08%, 500=0.13% cpu : usr=0.05%, sys=5.53%, ctx=1486, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144277: Sat Aug 22 06:08:08 2026 read: IOPS=13, BW=210KiB/s (215kB/s)(5744KiB/27379msec) clat (usec): min=36, max=174840, avg=40498.06, stdev=28459.26 lat (usec): min=36, max=174842, avg=40499.44, stdev=28459.24 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 61], 10.00th=[ 69], 20.00th=[ 18482], | 30.00th=[ 28181], 40.00th=[ 32113], 50.00th=[ 37487], 60.00th=[ 44827], | 70.00th=[ 51119], 80.00th=[ 62129], 90.00th=[ 76022], 95.00th=[ 90702], | 99.00th=[125305], 99.50th=[149947], 99.90th=[175113], 99.95th=[175113], | 99.99th=[175113] bw ( KiB/s): min= 64, max= 349, per=24.98%, avg=208.31, stdev=72.61, samples=54 iops : min= 4, max= 21, avg=12.28, stdev= 4.59, samples=54 write: IOPS=14, BW=239KiB/s (245kB/s)(6544KiB/27379msec); 0 zone resets clat (usec): min=1617, max=264246, avg=31129.54, stdev=34355.09 lat (usec): min=1617, max=264248, avg=31144.55, stdev=34353.10 clat percentiles (usec): | 1.00th=[ 1745], 5.00th=[ 1958], 10.00th=[ 2737], 20.00th=[ 4621], | 30.00th=[ 7701], 40.00th=[ 11469], 50.00th=[ 17695], 60.00th=[ 27919], | 70.00th=[ 42206], 80.00th=[ 54264], 90.00th=[ 74974], 95.00th=[ 93848], | 99.00th=[128451], 99.50th=[156238], 99.90th=[265290], 99.95th=[265290], | 99.99th=[265290] bw ( KiB/s): min= 62, max= 535, per=27.15%, avg=238.33, stdev=102.67, samples=54 iops : min= 3, max= 33, avg=14.17, stdev= 6.52, samples=54 lat (usec) : 50=0.39%, 100=5.86%, 250=1.17%, 750=0.13%, 1000=0.13% lat (msec) : 2=2.99%, 4=6.64%, 10=10.03%, 20=11.33%, 50=34.11% lat (msec) : 100=23.31%, 250=3.65%, 500=0.26% cpu : usr=0.08%, sys=5.70%, ctx=1460, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144278: Sat Aug 22 06:08:08 2026 read: IOPS=14, BW=224KiB/s (230kB/s)(6256KiB/27890msec) clat (usec): min=37, max=250791, avg=40299.33, stdev=31360.78 lat (usec): min=38, max=250791, avg=40300.69, stdev=31360.78 clat percentiles (usec): | 1.00th=[ 41], 5.00th=[ 58], 10.00th=[ 67], 20.00th=[ 15664], | 30.00th=[ 25560], 40.00th=[ 31065], 50.00th=[ 38536], 60.00th=[ 43254], | 70.00th=[ 51643], 80.00th=[ 61080], 90.00th=[ 78119], 95.00th=[ 91751], | 99.00th=[135267], 99.50th=[158335], 99.90th=[250610], 99.95th=[250610], | 99.99th=[250610] bw ( KiB/s): min= 62, max= 411, per=27.12%, avg=226.20, stdev=82.89, samples=54 iops : min= 3, max= 25, avg=13.39, stdev= 5.26, samples=54 write: IOPS=13, BW=216KiB/s (221kB/s)(6032KiB/27890msec); 0 zone resets clat (usec): min=1554, max=249850, avg=31611.41, stdev=34904.81 lat (usec): min=1557, max=249852, avg=31613.64, stdev=34904.87 clat percentiles (usec): | 1.00th=[ 1696], 5.00th=[ 1975], 10.00th=[ 2474], 20.00th=[ 4621], | 30.00th=[ 7111], 40.00th=[ 12256], 50.00th=[ 19006], 60.00th=[ 28967], | 70.00th=[ 38536], 80.00th=[ 53216], 90.00th=[ 78119], 95.00th=[102237], | 99.00th=[152044], 99.50th=[212861], 99.90th=[250610], 99.95th=[250610], | 99.99th=[250610] bw ( KiB/s): min= 63, max= 538, per=24.55%, avg=215.56, stdev=102.68, samples=54 iops : min= 3, max= 33, avg=12.72, stdev= 6.50, samples=54 lat (usec) : 50=0.65%, 100=7.42%, 250=0.65%, 500=0.26%, 1000=0.39% lat (msec) : 2=2.99%, 4=5.86%, 10=9.51%, 20=8.72%, 50=36.33% lat (msec) : 100=22.53%, 250=4.56%, 500=0.13% cpu : usr=0.07%, sys=5.51%, ctx=1448, 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=144279: Sat Aug 22 06:08:08 2026 read: IOPS=13, BW=214KiB/s (219kB/s)(6032KiB/28142msec) clat (usec): min=34, max=251513, avg=41259.83, stdev=34589.71 lat (usec): min=34, max=251515, avg=41261.32, stdev=34589.74 clat percentiles (usec): | 1.00th=[ 43], 5.00th=[ 57], 10.00th=[ 64], 20.00th=[ 11731], | 30.00th=[ 23200], 40.00th=[ 30016], 50.00th=[ 34866], 60.00th=[ 44827], | 70.00th=[ 53740], 80.00th=[ 65274], 90.00th=[ 81265], 95.00th=[ 99091], | 99.00th=[143655], 99.50th=[231736], 99.90th=[250610], 99.95th=[250610], | 99.99th=[250610] bw ( KiB/s): min= 61, max= 384, per=25.42%, avg=212.00, stdev=73.98, samples=55 iops : min= 3, max= 24, avg=12.49, stdev= 4.69, samples=55 write: IOPS=13, BW=222KiB/s (228kB/s)(6256KiB/28142msec); 0 zone resets clat (usec): min=1515, max=284056, avg=31520.84, stdev=35191.14 lat (usec): min=1515, max=284060, avg=31525.11, stdev=35195.86 clat percentiles (usec): | 1.00th=[ 1663], 5.00th=[ 1844], 10.00th=[ 2180], 20.00th=[ 4555], | 30.00th=[ 7308], 40.00th=[ 11469], 50.00th=[ 17695], 60.00th=[ 25297], | 70.00th=[ 40633], 80.00th=[ 55837], 90.00th=[ 80217], 95.00th=[ 99091], | 99.00th=[160433], 99.50th=[187696], 99.90th=[283116], 99.95th=[283116], | 99.99th=[283116] bw ( KiB/s): min= 62, max= 480, per=25.23%, avg=221.49, stdev=100.10, samples=55 iops : min= 3, max= 30, avg=13.09, stdev= 6.37, samples=55 lat (usec) : 50=1.17%, 100=7.16%, 250=0.52%, 500=0.13%, 1000=0.13% lat (msec) : 2=4.43%, 4=4.95%, 10=9.90%, 20=11.07%, 50=31.38% lat (msec) : 100=24.48%, 250=4.43%, 500=0.26% cpu : usr=0.09%, sys=5.70%, ctx=1455, 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=835KiB/s (855kB/s), 206KiB/s-224KiB/s (211kB/s-230kB/s), io=23.4MiB (24.5MB), run=27379-28694msec WRITE: bw=878KiB/s (899kB/s), 216KiB/s-239KiB/s (221kB/s-245kB/s), io=24.6MiB (25.8MB), run=27379-28694msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144282: Sat Aug 22 06:08:46 2026 read: IOPS=5, BW=92.2KiB/s (94.4kB/s)(5920KiB/64184msec) clat (msec): min=7, max=327, avg=36.67, stdev=37.20 lat (msec): min=7, max=327, avg=36.68, stdev=37.20 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 22], 50.00th=[ 25], 60.00th=[ 29], | 70.00th=[ 34], 80.00th=[ 46], 90.00th=[ 80], 95.00th=[ 109], | 99.00th=[ 209], 99.50th=[ 292], 99.90th=[ 330], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 31, max= 384, per=27.83%, avg=102.68, stdev=63.80, samples=112 iops : min= 1, max= 24, avg= 5.69, stdev= 4.09, samples=112 write: IOPS=6, BW=99.2KiB/s (102kB/s)(6368KiB/64184msec); 0 zone resets clat (msec): min=41, max=499, avg=126.95, stdev=60.65 lat (msec): min=41, max=499, avg=126.96, stdev=60.65 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 63], 10.00th=[ 70], 20.00th=[ 83], | 30.00th=[ 93], 40.00th=[ 104], 50.00th=[ 113], 60.00th=[ 124], | 70.00th=[ 142], 80.00th=[ 161], 90.00th=[ 199], 95.00th=[ 249], | 99.00th=[ 347], 99.50th=[ 439], 99.90th=[ 502], 99.95th=[ 502], | 99.99th=[ 502] bw ( KiB/s): min= 31, max= 223, per=26.04%, avg=101.30, stdev=41.83, samples=123 iops : min= 1, max= 13, avg= 5.59, stdev= 2.70, samples=123 lat (msec) : 10=2.08%, 20=15.10%, 50=22.66%, 100=24.87%, 250=32.55% lat (msec) : 500=2.73% cpu : usr=0.04%, sys=1.49%, ctx=1319, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144283: Sat Aug 22 06:08:46 2026 read: IOPS=5, BW=88.7KiB/s (90.8kB/s)(5744KiB/64744msec) clat (msec): min=7, max=351, avg=38.79, stdev=40.19 lat (msec): min=7, max=351, avg=38.79, stdev=40.19 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 14], 20.00th=[ 17], | 30.00th=[ 19], 40.00th=[ 22], 50.00th=[ 25], 60.00th=[ 31], | 70.00th=[ 36], 80.00th=[ 49], 90.00th=[ 83], 95.00th=[ 123], | 99.00th=[ 215], 99.50th=[ 243], 99.90th=[ 351], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 23, max= 351, per=28.50%, avg=105.17, stdev=65.00, samples=108 iops : min= 1, max= 21, avg= 5.85, stdev= 4.14, samples=108 write: IOPS=6, BW=101KiB/s (104kB/s)(6544KiB/64744msec); 0 zone resets clat (msec): min=38, max=565, avg=124.08, stdev=61.37 lat (msec): min=38, max=565, avg=124.08, stdev=61.37 clat percentiles (msec): | 1.00th=[ 45], 5.00th=[ 55], 10.00th=[ 68], 20.00th=[ 83], | 30.00th=[ 91], 40.00th=[ 99], 50.00th=[ 110], 60.00th=[ 122], | 70.00th=[ 134], 80.00th=[ 159], 90.00th=[ 205], 95.00th=[ 234], | 99.00th=[ 338], 99.50th=[ 368], 99.90th=[ 567], 99.95th=[ 567], | 99.99th=[ 567] bw ( KiB/s): min= 23, max= 256, per=26.33%, avg=102.44, stdev=45.99, samples=126 iops : min= 1, max= 16, avg= 5.66, stdev= 3.01, samples=126 lat (msec) : 10=1.56%, 20=15.49%, 50=22.01%, 100=26.43%, 250=32.03% lat (msec) : 500=2.34%, 750=0.13% cpu : usr=0.03%, sys=1.41%, ctx=1351, 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=144284: Sat Aug 22 06:08:46 2026 read: IOPS=6, BW=103KiB/s (105kB/s)(6256KiB/60850msec) clat (msec): min=6, max=203, avg=32.83, stdev=29.33 lat (msec): min=6, max=203, avg=32.84, stdev=29.34 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 24], 60.00th=[ 28], | 70.00th=[ 32], 80.00th=[ 42], 90.00th=[ 73], 95.00th=[ 101], | 99.00th=[ 157], 99.50th=[ 203], 99.90th=[ 203], 99.95th=[ 203], | 99.99th=[ 203] bw ( KiB/s): min= 31, max= 341, per=31.64%, avg=116.75, stdev=75.73, samples=106 iops : min= 1, max= 21, avg= 6.58, stdev= 4.81, samples=106 write: IOPS=6, BW=99.1KiB/s (102kB/s)(6032KiB/60850msec); 0 zone resets clat (msec): min=43, max=522, avg=127.27, stdev=64.75 lat (msec): min=43, max=522, avg=127.28, stdev=64.75 clat percentiles (msec): | 1.00th=[ 51], 5.00th=[ 63], 10.00th=[ 69], 20.00th=[ 82], | 30.00th=[ 93], 40.00th=[ 102], 50.00th=[ 112], 60.00th=[ 123], | 70.00th=[ 134], 80.00th=[ 159], 90.00th=[ 207], 95.00th=[ 268], | 99.00th=[ 363], 99.50th=[ 489], 99.90th=[ 523], 99.95th=[ 523], | 99.99th=[ 523] bw ( KiB/s): min= 24, max= 223, per=25.40%, avg=98.80, stdev=41.73, samples=120 iops : min= 1, max= 13, avg= 5.42, stdev= 2.73, samples=120 lat (msec) : 10=2.99%, 20=17.71%, 50=22.66%, 100=24.09%, 250=29.69% lat (msec) : 500=2.73%, 750=0.13% cpu : usr=0.05%, sys=1.39%, ctx=1340, 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=144285: Sat Aug 22 06:08:46 2026 read: IOPS=5, BW=95.3KiB/s (97.6kB/s)(6032KiB/63275msec) clat (msec): min=7, max=242, avg=34.90, stdev=34.87 lat (msec): min=7, max=242, avg=34.90, stdev=34.87 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 20], 50.00th=[ 24], 60.00th=[ 27], | 70.00th=[ 34], 80.00th=[ 44], 90.00th=[ 72], 95.00th=[ 110], | 99.00th=[ 199], 99.50th=[ 218], 99.90th=[ 243], 99.95th=[ 243], | 99.99th=[ 243] bw ( KiB/s): min= 31, max= 352, per=28.38%, avg=104.73, stdev=67.61, samples=113 iops : min= 1, max= 22, avg= 5.80, stdev= 4.31, samples=113 write: IOPS=6, BW=98.9KiB/s (101kB/s)(6256KiB/63275msec); 0 zone resets clat (msec): min=36, max=469, avg=127.99, stdev=63.14 lat (msec): min=36, max=469, avg=128.00, stdev=63.14 clat percentiles (msec): | 1.00th=[ 49], 5.00th=[ 62], 10.00th=[ 70], 20.00th=[ 80], | 30.00th=[ 91], 40.00th=[ 103], 50.00th=[ 110], 60.00th=[ 126], | 70.00th=[ 142], 80.00th=[ 163], 90.00th=[ 220], 95.00th=[ 253], | 99.00th=[ 359], 99.50th=[ 388], 99.90th=[ 468], 99.95th=[ 468], | 99.99th=[ 468] bw ( KiB/s): min= 31, max= 253, per=25.40%, avg=98.80, stdev=46.31, samples=125 iops : min= 1, max= 15, avg= 5.42, stdev= 2.99, samples=125 lat (msec) : 10=2.86%, 20=17.06%, 50=22.01%, 100=24.22%, 250=31.25% lat (msec) : 500=2.60% cpu : usr=0.03%, sys=1.47%, ctx=1365, 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=370KiB/s (379kB/s), 88.7KiB/s-103KiB/s (90.8kB/s-105kB/s), io=23.4MiB (24.5MB), run=60850-64744msec WRITE: bw=389KiB/s (399kB/s), 98.9KiB/s-101KiB/s (101kB/s-104kB/s), io=24.6MiB (25.8MB), run=60850-64744msec 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=144304: Sat Aug 22 06:09:01 2026 read: IOPS=2, BW=2563KiB/s (2624kB/s)(7168KiB/2797msec) clat (msec): min=132, max=534, avg=257.65, stdev=138.80 lat (msec): min=132, max=534, avg=257.65, stdev=138.80 clat percentiles (msec): | 1.00th=[ 133], 5.00th=[ 133], 10.00th=[ 133], 20.00th=[ 163], | 30.00th=[ 188], 40.00th=[ 188], 50.00th=[ 203], 60.00th=[ 251], | 70.00th=[ 251], 80.00th=[ 334], 90.00th=[ 535], 95.00th=[ 535], | 99.00th=[ 535], 99.50th=[ 535], 99.90th=[ 535], 99.95th=[ 535], | 99.99th=[ 535] bw ( KiB/s): min= 2019, max= 4071, per=61.78%, avg=2906.75, stdev=1043.97, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 write: IOPS=1, BW=1831KiB/s (1874kB/s)(5120KiB/2797msec); 0 zone resets clat (msec): min=88, max=278, avg=180.66, stdev=85.27 lat (msec): min=88, max=278, avg=180.76, stdev=85.27 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 89], 10.00th=[ 89], 20.00th=[ 89], | 30.00th=[ 120], 40.00th=[ 120], 50.00th=[ 157], 60.00th=[ 157], | 70.00th=[ 262], 80.00th=[ 262], 90.00th=[ 279], 95.00th=[ 279], | 99.00th=[ 279], 99.50th=[ 279], 99.90th=[ 279], 99.95th=[ 279], | 99.99th=[ 279] bw ( KiB/s): min= 2019, max= 6107, per=51.39%, avg=3385.67, stdev=2356.75, samples=3 iops : min= 1, max= 5, avg= 2.33, stdev= 2.31, samples=3 lat (msec) : 100=8.33%, 250=50.00%, 500=33.33%, 750=8.33% cpu : usr=0.00%, sys=14.95%, ctx=199, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144305: Sat Aug 22 06:09:01 2026 read: IOPS=0, BW=471KiB/s (482kB/s)(2048KiB/4352msec) clat (usec): min=527, max=345366, avg=172946.70, stdev=243837.77 lat (usec): min=529, max=345367, avg=172948.15, stdev=243837.23 clat percentiles (usec): | 1.00th=[ 529], 5.00th=[ 529], 10.00th=[ 529], 20.00th=[ 529], | 30.00th=[ 529], 40.00th=[ 529], 50.00th=[ 529], 60.00th=[346031], | 70.00th=[346031], 80.00th=[346031], 90.00th=[346031], 95.00th=[346031], | 99.00th=[346031], 99.50th=[346031], 99.90th=[346031], 99.95th=[346031], | 99.99th=[346031] bw ( KiB/s): min= 2031, max= 2035, per=43.21%, avg=2033.00, stdev= 2.83, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2353KiB/s (2409kB/s)(10.0MiB/4352msec); 0 zone resets clat (msec): min=164, max=968, avg=368.63, stdev=255.51 lat (msec): min=164, max=968, avg=368.72, stdev=255.50 clat percentiles (msec): | 1.00th=[ 165], 5.00th=[ 165], 10.00th=[ 165], 20.00th=[ 165], | 30.00th=[ 167], 40.00th=[ 207], 50.00th=[ 224], 60.00th=[ 300], | 70.00th=[ 489], 80.00th=[ 493], 90.00th=[ 510], 95.00th=[ 969], | 99.00th=[ 969], 99.50th=[ 969], 99.90th=[ 969], 99.95th=[ 969], | 99.99th=[ 969] bw ( KiB/s): min= 2035, max= 6107, per=55.64%, avg=3665.40, stdev=1703.94, samples=5 iops : min= 1, max= 5, avg= 2.60, stdev= 1.67, samples=5 lat (usec) : 750=8.33% lat (msec) : 250=41.67%, 500=33.33%, 750=8.33%, 1000=8.33% cpu : usr=0.00%, sys=10.66%, ctx=123, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144306: Sat Aug 22 06:09:01 2026 read: IOPS=1, BW=1771KiB/s (1814kB/s)(6144KiB/3469msec) clat (usec): min=507, max=268085, avg=123085.50, stdev=128920.47 lat (usec): min=508, max=268086, avg=123086.68, stdev=128920.25 clat percentiles (usec): | 1.00th=[ 506], 5.00th=[ 506], 10.00th=[ 506], 20.00th=[ 898], | 30.00th=[ 898], 40.00th=[ 18482], 50.00th=[ 18482], 60.00th=[212861], | 70.00th=[238027], 80.00th=[238027], 90.00th=[267387], 95.00th=[267387], | 99.00th=[267387], 99.50th=[267387], 99.90th=[267387], 99.95th=[267387], | 99.99th=[267387] bw ( KiB/s): min= 4039, max= 6107, per=100.00%, avg=5073.00, stdev=1462.30, samples=2 iops : min= 3, max= 5, avg= 4.00, stdev= 1.41, samples=2 write: IOPS=1, BW=1771KiB/s (1814kB/s)(6144KiB/3469msec); 0 zone resets clat (msec): min=206, max=957, avg=411.36, stdev=290.82 lat (msec): min=206, max=957, avg=411.43, stdev=290.85 clat percentiles (msec): | 1.00th=[ 207], 5.00th=[ 207], 10.00th=[ 207], 20.00th=[ 215], | 30.00th=[ 215], 40.00th=[ 226], 50.00th=[ 226], 60.00th=[ 368], | 70.00th=[ 498], 80.00th=[ 498], 90.00th=[ 961], 95.00th=[ 961], | 99.00th=[ 961], 99.50th=[ 961], 99.90th=[ 961], 99.95th=[ 961], | 99.99th=[ 961] bw ( KiB/s): min= 2019, max= 4063, per=38.52%, avg=2538.00, stdev=1016.69, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (usec) : 750=8.33%, 1000=8.33% lat (msec) : 20=8.33%, 250=41.67%, 500=25.00%, 1000=8.33% cpu : usr=0.00%, sys=11.19%, ctx=136, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144307: Sat Aug 22 06:09:01 2026 read: IOPS=1, BW=1637KiB/s (1676kB/s)(5120KiB/3128msec) clat (usec): min=447, max=316009, avg=108203.62, stdev=139947.33 lat (usec): min=448, max=316011, avg=108204.60, stdev=139947.27 clat percentiles (usec): | 1.00th=[ 449], 5.00th=[ 449], 10.00th=[ 449], 20.00th=[ 449], | 30.00th=[ 515], 40.00th=[ 515], 50.00th=[ 34866], 60.00th=[ 34866], | 70.00th=[189793], 80.00th=[189793], 90.00th=[316670], 95.00th=[316670], | 99.00th=[316670], 99.50th=[316670], 99.90th=[316670], 99.95th=[316670], | 99.99th=[316670] bw ( KiB/s): min= 8143, max= 8143, per=100.00%, avg=8143.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=2, BW=2292KiB/s (2347kB/s)(7168KiB/3128msec); 0 zone resets clat (msec): min=230, max=683, avg=360.41, stdev=179.15 lat (msec): min=230, max=684, avg=360.49, stdev=179.16 clat percentiles (msec): | 1.00th=[ 230], 5.00th=[ 230], 10.00th=[ 230], 20.00th=[ 247], | 30.00th=[ 255], 40.00th=[ 255], 50.00th=[ 264], 60.00th=[ 300], | 70.00th=[ 300], 80.00th=[ 542], 90.00th=[ 684], 95.00th=[ 684], | 99.00th=[ 684], 99.50th=[ 684], 99.90th=[ 684], 99.95th=[ 684], | 99.99th=[ 684] bw ( KiB/s): min= 1565, max= 4071, per=44.54%, avg=2934.50, stdev=1326.04, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 lat (usec) : 500=8.33%, 750=8.33% lat (msec) : 50=8.33%, 250=25.00%, 500=33.33%, 750=16.67% cpu : usr=0.00%, sys=12.12%, ctx=227, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=4706KiB/s (4819kB/s), 471KiB/s-2563KiB/s (482kB/s-2624kB/s), io=20.0MiB (20.0MB), run=2797-4352msec WRITE: bw=6588KiB/s (6746kB/s), 1771KiB/s-2353KiB/s (1814kB/s-2409kB/s), io=28.0MiB (29.4MB), run=2797-4352msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144308: Sat Aug 22 06:09:02 2026 read: IOPS=1, BW=1852KiB/s (1896kB/s)(7168KiB/3871msec) clat (msec): min=75, max=930, avg=316.36, stdev=313.94 lat (msec): min=75, max=930, avg=316.36, stdev=313.94 clat percentiles (msec): | 1.00th=[ 77], 5.00th=[ 77], 10.00th=[ 77], 20.00th=[ 123], | 30.00th=[ 129], 40.00th=[ 129], 50.00th=[ 129], 60.00th=[ 296], | 70.00th=[ 296], 80.00th=[ 535], 90.00th=[ 927], 95.00th=[ 927], | 99.00th=[ 927], 99.50th=[ 927], 99.90th=[ 927], 99.95th=[ 927], | 99.99th=[ 927] bw ( KiB/s): min= 1709, max= 4071, per=54.64%, avg=2340.20, stdev=975.14, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 write: IOPS=1, BW=1323KiB/s (1354kB/s)(5120KiB/3871msec); 0 zone resets clat (msec): min=228, max=349, avg=280.01, stdev=53.39 lat (msec): min=228, max=349, avg=280.12, stdev=53.39 clat percentiles (msec): | 1.00th=[ 228], 5.00th=[ 228], 10.00th=[ 228], 20.00th=[ 228], | 30.00th=[ 249], 40.00th=[ 249], 50.00th=[ 251], 60.00th=[ 251], | 70.00th=[ 326], 80.00th=[ 326], 90.00th=[ 351], 95.00th=[ 351], | 99.00th=[ 351], 99.50th=[ 351], 99.90th=[ 351], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 1910, max= 2031, per=33.15%, avg=1988.00, stdev=54.50, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 lat (msec) : 100=8.33%, 250=41.67%, 500=33.33%, 750=8.33%, 1000=8.33% cpu : usr=0.00%, sys=4.24%, ctx=73, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144309: Sat Aug 22 06:09:02 2026 read: IOPS=0, BW=430KiB/s (441kB/s)(2048KiB/4760msec) clat (msec): min=323, max=454, avg=389.28, stdev=92.72 lat (msec): min=323, max=454, avg=389.28, stdev=92.72 clat percentiles (msec): | 1.00th=[ 326], 5.00th=[ 326], 10.00th=[ 326], 20.00th=[ 326], | 30.00th=[ 326], 40.00th=[ 326], 50.00th=[ 326], 60.00th=[ 456], | 70.00th=[ 456], 80.00th=[ 456], 90.00th=[ 456], 95.00th=[ 456], | 99.00th=[ 456], 99.50th=[ 456], 99.90th=[ 456], 99.95th=[ 456], | 99.99th=[ 456] bw ( KiB/s): min= 1641, max= 2031, per=42.87%, avg=1836.00, stdev=275.77, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2151KiB/s (2203kB/s)(10.0MiB/4760msec); 0 zone resets clat (msec): min=102, max=974, avg=379.94, stdev=270.94 lat (msec): min=102, max=974, avg=380.02, stdev=270.95 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 103], 10.00th=[ 103], 20.00th=[ 211], | 30.00th=[ 236], 40.00th=[ 239], 50.00th=[ 247], 60.00th=[ 262], | 70.00th=[ 388], 80.00th=[ 401], 90.00th=[ 743], 95.00th=[ 978], | 99.00th=[ 978], 99.50th=[ 978], 99.90th=[ 978], 99.95th=[ 978], | 99.99th=[ 978] bw ( KiB/s): min= 2019, max= 4079, per=60.85%, avg=3649.40, stdev=911.88, samples=5 iops : min= 1, max= 3, avg= 2.60, stdev= 0.89, samples=5 lat (msec) : 250=41.67%, 500=41.67%, 750=8.33%, 1000=8.33% cpu : usr=0.02%, sys=3.47%, ctx=73, 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=144310: Sat Aug 22 06:09:02 2026 read: IOPS=1, BW=1351KiB/s (1383kB/s)(6144KiB/4548msec) clat (msec): min=103, max=408, avg=224.18, stdev=121.54 lat (msec): min=103, max=408, avg=224.18, stdev=121.54 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 104], 10.00th=[ 104], 20.00th=[ 112], | 30.00th=[ 112], 40.00th=[ 178], 50.00th=[ 178], 60.00th=[ 218], | 70.00th=[ 326], 80.00th=[ 326], 90.00th=[ 409], 95.00th=[ 409], | 99.00th=[ 409], 99.50th=[ 409], 99.90th=[ 409], 99.95th=[ 409], | 99.99th=[ 409] bw ( KiB/s): min= 1910, max= 3984, per=58.09%, avg=2488.00, stdev=998.94, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1351KiB/s (1383kB/s)(6144KiB/4548msec); 0 zone resets clat (msec): min=254, max=836, avg=520.84, stdev=254.08 lat (msec): min=255, max=836, avg=520.94, stdev=254.11 clat percentiles (msec): | 1.00th=[ 255], 5.00th=[ 255], 10.00th=[ 255], 20.00th=[ 292], | 30.00th=[ 292], 40.00th=[ 376], 50.00th=[ 376], 60.00th=[ 567], | 70.00th=[ 793], 80.00th=[ 793], 90.00th=[ 835], 95.00th=[ 835], | 99.00th=[ 835], 99.50th=[ 835], 99.90th=[ 835], 99.95th=[ 835], | 99.99th=[ 835] bw ( KiB/s): min= 1546, max= 2039, per=31.65%, avg=1898.00, stdev=202.35, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 250=33.33%, 500=41.67%, 750=8.33%, 1000=16.67% cpu : usr=0.07%, sys=2.88%, ctx=57, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144311: Sat Aug 22 06:09:02 2026 read: IOPS=1, BW=1071KiB/s (1097kB/s)(5120KiB/4781msec) clat (msec): min=61, max=432, avg=215.16, stdev=151.85 lat (msec): min=61, max=432, avg=215.16, stdev=151.85 clat percentiles (msec): | 1.00th=[ 62], 5.00th=[ 62], 10.00th=[ 62], 20.00th=[ 62], | 30.00th=[ 81], 40.00th=[ 81], 50.00th=[ 234], 60.00th=[ 234], | 70.00th=[ 268], 80.00th=[ 268], 90.00th=[ 435], 95.00th=[ 435], | 99.00th=[ 435], 99.50th=[ 435], 99.90th=[ 435], 99.95th=[ 435], | 99.99th=[ 435] bw ( KiB/s): min= 1992, max= 4079, per=63.06%, avg=2700.67, stdev=1193.83, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=1, BW=1499KiB/s (1535kB/s)(7168KiB/4781msec); 0 zone resets clat (msec): min=137, max=819, avg=485.16, stdev=273.28 lat (msec): min=137, max=819, avg=485.27, stdev=273.27 clat percentiles (msec): | 1.00th=[ 138], 5.00th=[ 138], 10.00th=[ 138], 20.00th=[ 178], | 30.00th=[ 384], 40.00th=[ 384], 50.00th=[ 493], 60.00th=[ 575], | 70.00th=[ 575], 80.00th=[ 802], 90.00th=[ 818], 95.00th=[ 818], | 99.00th=[ 818], 99.50th=[ 818], 99.90th=[ 818], 99.95th=[ 818], | 99.99th=[ 818] bw ( KiB/s): min= 2003, max= 4071, per=40.55%, avg=2431.80, stdev=916.43, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (msec) : 100=16.67%, 250=25.00%, 500=33.33%, 750=8.33%, 1000=16.67% cpu : usr=0.00%, sys=3.54%, ctx=107, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=4284KiB/s (4386kB/s), 430KiB/s-1852KiB/s (441kB/s-1896kB/s), io=20.0MiB (20.0MB), run=3871-4781msec WRITE: bw=5997KiB/s (6141kB/s), 1323KiB/s-2151KiB/s (1354kB/s-2203kB/s), io=28.0MiB (29.4MB), run=3871-4781msec 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=144317: Sat Aug 22 06:09:16 2026 read: IOPS=0, BW=4001KiB/s (4097kB/s)(12.0MiB/3071msec) clat (msec): min=825, max=1198, avg=999.83, stdev=187.67 lat (msec): min=825, max=1198, avg=999.83, stdev=187.67 clat percentiles (msec): | 1.00th=[ 827], 5.00th=[ 827], 10.00th=[ 827], 20.00th=[ 827], | 30.00th=[ 827], 40.00th=[ 978], 50.00th=[ 978], 60.00th=[ 978], | 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= 7907, max= 8078, per=100.00%, avg=7992.50, stdev=120.92, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=66.67%, 2000=33.33% cpu : usr=0.03%, sys=3.65%, ctx=47, 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=144318: Sat Aug 22 06:09:16 2026 read: IOPS=0, BW=1142KiB/s (1170kB/s)(4096KiB/3586msec) clat (nsec): min=243997k, max=243997k, avg=243996637.00, stdev= 0.00 lat (nsec): min=243999k, max=243999k, avg=243998727.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 245], 5.00th=[ 245], 10.00th=[ 245], 20.00th=[ 245], | 30.00th=[ 245], 40.00th=[ 245], 50.00th=[ 245], 60.00th=[ 245], | 70.00th=[ 245], 80.00th=[ 245], 90.00th=[ 245], 95.00th=[ 245], | 99.00th=[ 245], 99.50th=[ 245], 99.90th=[ 245], 99.95th=[ 245], | 99.99th=[ 245] bw ( KiB/s): min= 7892, max= 7892, per=100.00%, avg=7892.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2284KiB/s (2339kB/s)(8192KiB/3586msec); 0 zone resets clat (msec): min=592, max=2639, avg=1616.07, stdev=1446.88 lat (msec): min=593, max=2639, avg=1616.63, stdev=1446.70 clat percentiles (msec): | 1.00th=[ 592], 5.00th=[ 592], 10.00th=[ 592], 20.00th=[ 592], | 30.00th=[ 592], 40.00th=[ 592], 50.00th=[ 592], 60.00th=[ 2635], | 70.00th=[ 2635], 80.00th=[ 2635], 90.00th=[ 2635], 95.00th=[ 2635], | 99.00th=[ 2635], 99.50th=[ 2635], 99.90th=[ 2635], 99.95th=[ 2635], | 99.99th=[ 2635] bw ( KiB/s): min= 8094, max= 8094, per=88.58%, avg=8094.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 750=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=3.46%, ctx=53, 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=144319: Sat Aug 22 06:09:16 2026 write: IOPS=1, BW=4959KiB/s (5078kB/s)(12.0MiB/2478msec); 0 zone resets clat (msec): min=595, max=1212, avg=804.52, stdev=353.60 lat (msec): min=595, max=1213, avg=805.36, stdev=353.25 clat percentiles (msec): | 1.00th=[ 592], 5.00th=[ 592], 10.00th=[ 592], 20.00th=[ 592], | 30.00th=[ 592], 40.00th=[ 609], 50.00th=[ 609], 60.00th=[ 609], | 70.00th=[ 1217], 80.00th=[ 1217], 90.00th=[ 1217], 95.00th=[ 1217], | 99.00th=[ 1217], 99.50th=[ 1217], 99.90th=[ 1217], 99.95th=[ 1217], | 99.99th=[ 1217] bw ( KiB/s): min= 5962, max= 7907, per=75.89%, avg=6934.50, stdev=1375.32, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=66.67%, 2000=33.33% cpu : usr=0.00%, sys=3.07%, ctx=42, 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=144320: Sat Aug 22 06:09:16 2026 write: IOPS=1, BW=4766KiB/s (4881kB/s)(12.0MiB/2578msec); 0 zone resets clat (msec): min=408, max=1614, avg=824.43, stdev=684.67 lat (msec): min=409, max=1616, avg=826.06, stdev=684.79 clat percentiles (msec): | 1.00th=[ 409], 5.00th=[ 409], 10.00th=[ 409], 20.00th=[ 409], | 30.00th=[ 409], 40.00th=[ 451], 50.00th=[ 451], 60.00th=[ 451], | 70.00th=[ 1620], 80.00th=[ 1620], 90.00th=[ 1620], 95.00th=[ 1620], | 99.00th=[ 1620], 99.50th=[ 1620], 99.90th=[ 1620], 99.95th=[ 1620], | 99.99th=[ 1620] bw ( KiB/s): min= 7816, max= 8094, per=87.06%, avg=7955.00, stdev=196.58, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=66.67%, 2000=33.33% cpu : usr=0.04%, sys=5.78%, ctx=50, 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=4569KiB/s (4679kB/s), 1142KiB/s-4001KiB/s (1170kB/s-4097kB/s), io=16.0MiB (16.8MB), run=3071-3586msec WRITE: bw=9138KiB/s (9357kB/s), 2284KiB/s-4959KiB/s (2339kB/s-5078kB/s), io=32.0MiB (33.6MB), run=2478-3586msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144322: Sat Aug 22 06:09:17 2026 read: IOPS=1, BW=5124KiB/s (5247kB/s)(12.0MiB/2398msec) clat (msec): min=657, max=886, avg=798.14, stdev=122.96 lat (msec): min=657, max=886, avg=798.14, stdev=122.96 clat percentiles (msec): | 1.00th=[ 659], 5.00th=[ 659], 10.00th=[ 659], 20.00th=[ 659], | 30.00th=[ 659], 40.00th=[ 852], 50.00th=[ 852], 60.00th=[ 852], | 70.00th=[ 885], 80.00th=[ 885], 90.00th=[ 885], 95.00th=[ 885], | 99.00th=[ 885], 99.50th=[ 885], 99.90th=[ 885], 99.95th=[ 885], | 99.99th=[ 885] bw ( KiB/s): min= 6086, max= 8126, per=100.00%, avg=7106.00, stdev=1442.50, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 1000=66.67% cpu : usr=0.00%, sys=12.02%, ctx=319, 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=144323: Sat Aug 22 06:09:17 2026 read: IOPS=0, BW=1526KiB/s (1563kB/s)(4096KiB/2684msec) clat (nsec): min=659519k, max=659519k, avg=659518928.00, stdev= 0.00 lat (nsec): min=659520k, max=659520k, avg=659520336.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 659], 5.00th=[ 659], 10.00th=[ 659], 20.00th=[ 659], | 30.00th=[ 659], 40.00th=[ 659], 50.00th=[ 659], 60.00th=[ 659], | 70.00th=[ 659], 80.00th=[ 659], 90.00th=[ 659], 95.00th=[ 659], | 99.00th=[ 659], 99.50th=[ 659], 99.90th=[ 659], 99.95th=[ 659], | 99.99th=[ 659] bw ( KiB/s): min= 6122, max= 6122, per=100.00%, avg=6122.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3052KiB/s (3125kB/s)(8192KiB/2684msec); 0 zone resets clat (msec): min=677, max=1342, avg=1010.19, stdev=470.59 lat (msec): min=677, max=1345, avg=1011.64, stdev=472.18 clat percentiles (msec): | 1.00th=[ 676], 5.00th=[ 676], 10.00th=[ 676], 20.00th=[ 676], | 30.00th=[ 676], 40.00th=[ 676], 50.00th=[ 676], 60.00th=[ 1351], | 70.00th=[ 1351], 80.00th=[ 1351], 90.00th=[ 1351], 95.00th=[ 1351], | 99.00th=[ 1351], 99.50th=[ 1351], 99.90th=[ 1351], 99.95th=[ 1351], | 99.99th=[ 1351] bw ( KiB/s): min= 8126, max= 8126, per=97.43%, avg=8126.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=66.67%, 2000=33.33% cpu : usr=0.00%, sys=4.73%, ctx=187, 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=144324: Sat Aug 22 06:09:17 2026 write: IOPS=0, BW=3128KiB/s (3203kB/s)(12.0MiB/3929msec); 0 zone resets clat (msec): min=435, max=1772, avg=1308.64, stdev=756.70 lat (msec): min=436, max=1772, avg=1309.47, stdev=756.70 clat percentiles (msec): | 1.00th=[ 435], 5.00th=[ 435], 10.00th=[ 435], 20.00th=[ 435], | 30.00th=[ 435], 40.00th=[ 1720], 50.00th=[ 1720], 60.00th=[ 1720], | 70.00th=[ 1770], 80.00th=[ 1770], 90.00th=[ 1770], 95.00th=[ 1770], | 99.00th=[ 1770], 99.50th=[ 1770], 99.90th=[ 1770], 99.95th=[ 1770], | 99.99th=[ 1770] bw ( KiB/s): min= 8078, max= 8175, per=97.44%, avg=8126.50, stdev=68.59, 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=0.03%, sys=3.46%, ctx=33, 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=144325: Sat Aug 22 06:09:17 2026 write: IOPS=1, BW=4551KiB/s (4660kB/s)(12.0MiB/2700msec); 0 zone resets clat (msec): min=488, max=1443, avg=899.30, stdev=491.34 lat (msec): min=488, max=1443, avg=899.63, stdev=491.24 clat percentiles (msec): | 1.00th=[ 489], 5.00th=[ 489], 10.00th=[ 489], 20.00th=[ 489], | 30.00th=[ 489], 40.00th=[ 768], 50.00th=[ 768], 60.00th=[ 768], | 70.00th=[ 1452], 80.00th=[ 1452], 90.00th=[ 1452], 95.00th=[ 1452], | 99.00th=[ 1452], 99.50th=[ 1452], 99.90th=[ 1452], 99.95th=[ 1452], | 99.99th=[ 1452] bw ( KiB/s): min= 7922, max= 8126, per=96.21%, avg=8024.00, stdev=144.25, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=4.52%, ctx=38, 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=6104KiB/s (6251kB/s), 1526KiB/s-5124KiB/s (1563kB/s-5247kB/s), io=16.0MiB (16.8MB), run=2398-2684msec WRITE: bw=8340KiB/s (8540kB/s), 3052KiB/s-4551KiB/s (3125kB/s-4660kB/s), io=32.0MiB (33.6MB), run=2684-3929msec