== sanity test 398b: DIO and buffer IO race ============== 05:10:41 (1787821841) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 4.75172 s, 10.6 MB/s mix direct rw 4096 by fio with 4 jobs... mix buffer rw 4096 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=144670: Thu Aug 27 05:12:43 2026 read: IOPS=14, BW=57.3KiB/s (58.7kB/s)(5992KiB/104606msec) clat (usec): min=30, max=228672, avg=33445.87, stdev=25545.68 lat (usec): min=31, max=228672, avg=33446.97, stdev=25545.75 clat percentiles (usec): | 1.00th=[ 48], 5.00th=[ 55], 10.00th=[ 97], 20.00th=[ 14615], | 30.00th=[ 19530], 40.00th=[ 23987], 50.00th=[ 28443], 60.00th=[ 34341], | 70.00th=[ 42206], 80.00th=[ 51119], 90.00th=[ 65274], 95.00th=[ 77071], | 99.00th=[119014], 99.50th=[145753], 99.90th=[202376], 99.95th=[229639], | 99.99th=[229639] bw ( KiB/s): min= 7, max= 144, per=25.13%, avg=56.78, stdev=24.78, samples=207 iops : min= 1, max= 36, avg=13.55, stdev= 6.24, samples=207 write: IOPS=15, BW=60.2KiB/s (61.6kB/s)(6296KiB/104606msec); 0 zone resets clat (usec): min=961, max=304076, avg=34548.89, stdev=34638.60 lat (usec): min=962, max=304077, avg=34550.37, stdev=34638.55 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1188], 10.00th=[ 1483], 20.00th=[ 3458], | 30.00th=[ 7635], 40.00th=[ 16188], 50.00th=[ 25822], 60.00th=[ 35914], | 70.00th=[ 46924], 80.00th=[ 61080], 90.00th=[ 81265], 95.00th=[100140], | 99.00th=[141558], 99.50th=[160433], 99.90th=[256902], 99.95th=[304088], | 99.99th=[304088] bw ( KiB/s): min= 14, max= 143, per=25.28%, avg=59.92, stdev=23.96, samples=206 iops : min= 3, max= 35, avg=14.34, stdev= 6.03, samples=206 lat (usec) : 50=1.01%, 100=3.97%, 250=0.36%, 500=0.10%, 1000=0.10% lat (msec) : 2=6.84%, 4=4.72%, 10=6.48%, 20=14.13%, 50=38.31% lat (msec) : 100=20.51%, 250=3.39%, 500=0.10% cpu : usr=0.08%, sys=5.97%, ctx=6437, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144671: Thu Aug 27 05:12:43 2026 read: IOPS=14, BW=56.7KiB/s (58.1kB/s)(5940KiB/104751msec) clat (usec): min=34, max=310851, avg=33727.53, stdev=26682.36 lat (usec): min=34, max=310852, avg=33731.16, stdev=26684.67 clat percentiles (usec): | 1.00th=[ 46], 5.00th=[ 55], 10.00th=[ 96], 20.00th=[ 15401], | 30.00th=[ 20055], 40.00th=[ 24249], 50.00th=[ 28443], 60.00th=[ 34341], | 70.00th=[ 42206], 80.00th=[ 51119], 90.00th=[ 64226], 95.00th=[ 76022], | 99.00th=[114820], 99.50th=[132645], 99.90th=[295699], 99.95th=[312476], | 99.99th=[312476] bw ( KiB/s): min= 7, max= 136, per=24.85%, avg=56.15, stdev=24.29, samples=207 iops : min= 1, max= 34, avg=13.41, stdev= 6.13, samples=207 write: IOPS=15, BW=60.6KiB/s (62.1kB/s)(6348KiB/104751msec); 0 zone resets clat (usec): min=949, max=425455, avg=34346.81, stdev=37037.75 lat (usec): min=950, max=425456, avg=34347.96, stdev=37037.77 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1188], 10.00th=[ 1582], 20.00th=[ 3228], | 30.00th=[ 6652], 40.00th=[ 14877], 50.00th=[ 24511], 60.00th=[ 33817], | 70.00th=[ 45876], 80.00th=[ 60031], 90.00th=[ 81265], 95.00th=[103285], | 99.00th=[154141], 99.50th=[173016], 99.90th=[316670], 99.95th=[425722], | 99.99th=[425722] bw ( KiB/s): min= 7, max= 143, per=25.41%, avg=60.22, stdev=24.43, samples=206 iops : min= 1, max= 35, avg=14.41, stdev= 6.17, samples=206 lat (usec) : 50=1.04%, 100=3.81%, 250=0.33%, 500=0.10%, 1000=0.16% lat (msec) : 2=6.61%, 4=5.31%, 10=7.13%, 20=13.15%, 50=38.41% lat (msec) : 100=20.38%, 250=3.42%, 500=0.16% cpu : usr=0.08%, sys=6.02%, ctx=6439, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144672: Thu Aug 27 05:12:43 2026 read: IOPS=14, BW=57.5KiB/s (58.8kB/s)(6028KiB/104924msec) clat (usec): min=27, max=233027, avg=31611.51, stdev=24781.07 lat (usec): min=27, max=233028, avg=31616.39, stdev=24784.26 clat percentiles (usec): | 1.00th=[ 42], 5.00th=[ 54], 10.00th=[ 69], 20.00th=[ 14615], | 30.00th=[ 19006], 40.00th=[ 22938], 50.00th=[ 26870], 60.00th=[ 31851], | 70.00th=[ 38536], 80.00th=[ 47449], 90.00th=[ 62129], 95.00th=[ 74974], | 99.00th=[111674], 99.50th=[141558], 99.90th=[204473], 99.95th=[233833], | 99.99th=[233833] bw ( KiB/s): min= 7, max= 144, per=25.11%, avg=56.74, stdev=24.32, samples=207 iops : min= 1, max= 36, avg=13.55, stdev= 6.14, samples=207 write: IOPS=14, BW=59.7KiB/s (61.1kB/s)(6260KiB/104924msec); 0 zone resets clat (usec): min=885, max=347825, avg=36499.16, stdev=37259.20 lat (usec): min=886, max=347827, avg=36506.51, stdev=37260.40 clat percentiles (usec): | 1.00th=[ 1045], 5.00th=[ 1156], 10.00th=[ 1631], 20.00th=[ 3752], | 30.00th=[ 8586], 40.00th=[ 17433], 50.00th=[ 26608], 60.00th=[ 36439], | 70.00th=[ 48497], 80.00th=[ 63177], 90.00th=[ 86508], 95.00th=[105382], | 99.00th=[160433], 99.50th=[200279], 99.90th=[274727], 99.95th=[346031], | 99.99th=[346031] bw ( KiB/s): min= 7, max= 127, per=24.83%, avg=58.86, stdev=23.28, samples=207 iops : min= 1, max= 31, avg=14.07, stdev= 5.87, samples=207 lat (usec) : 50=1.30%, 100=4.39%, 250=0.39%, 500=0.07%, 750=0.10% lat (usec) : 1000=0.16% lat (msec) : 2=6.05%, 4=4.43%, 10=6.22%, 20=14.71%, 50=38.61% lat (msec) : 100=19.92%, 250=3.58%, 500=0.07% cpu : usr=0.07%, sys=6.01%, ctx=6411, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144673: Thu Aug 27 05:12:43 2026 read: IOPS=14, BW=57.2KiB/s (58.5kB/s)(6052KiB/105861msec) clat (usec): min=29, max=229970, avg=32834.27, stdev=26484.79 lat (usec): min=29, max=229972, avg=32835.64, stdev=26484.94 clat percentiles (usec): | 1.00th=[ 44], 5.00th=[ 54], 10.00th=[ 78], 20.00th=[ 14222], | 30.00th=[ 18744], 40.00th=[ 22414], 50.00th=[ 26346], 60.00th=[ 32113], | 70.00th=[ 40633], 80.00th=[ 51643], 90.00th=[ 64750], 95.00th=[ 82314], | 99.00th=[114820], 99.50th=[143655], 99.90th=[225444], 99.95th=[229639], | 99.99th=[229639] bw ( KiB/s): min= 7, max= 128, per=24.81%, avg=56.07, stdev=23.69, samples=209 iops : min= 1, max= 32, avg=13.38, stdev= 5.99, samples=209 write: IOPS=14, BW=58.9KiB/s (60.3kB/s)(6236KiB/105861msec); 0 zone resets clat (usec): min=908, max=331934, avg=35951.98, stdev=36503.57 lat (usec): min=909, max=331935, avg=35956.46, stdev=36501.65 clat percentiles (usec): | 1.00th=[ 1045], 5.00th=[ 1172], 10.00th=[ 1614], 20.00th=[ 3884], | 30.00th=[ 8717], 40.00th=[ 18220], 50.00th=[ 27395], 60.00th=[ 36963], | 70.00th=[ 46400], 80.00th=[ 60556], 90.00th=[ 81265], 95.00th=[106431], | 99.00th=[156238], 99.50th=[189793], 99.90th=[308282], 99.95th=[333448], | 99.99th=[333448] bw ( KiB/s): min= 7, max= 159, per=24.43%, avg=57.91, stdev=23.96, samples=209 iops : min= 1, max= 39, avg=13.84, stdev= 6.03, samples=209 lat (usec) : 50=1.33%, 100=4.30%, 250=0.46%, 500=0.23%, 1000=0.29% lat (msec) : 2=6.18%, 4=3.94%, 10=6.54%, 20=14.71%, 50=37.70% lat (msec) : 100=20.44%, 250=3.81%, 500=0.07% cpu : usr=0.06%, sys=6.06%, ctx=6465, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=227KiB/s (232kB/s), 56.7KiB/s-57.5KiB/s (58.1kB/s-58.8kB/s), io=23.4MiB (24.6MB), run=104606-105861msec WRITE: bw=237KiB/s (243kB/s), 58.9KiB/s-60.6KiB/s (60.3kB/s-62.1kB/s), io=24.6MiB (25.7MB), run=104606-105861msec fio: pid=144667, err=5/file:backend.c:481, func=full resid, error=Input/output error rand-rw: (groupid=0, jobs=1): err= 0: pid=144665: Thu Aug 27 05:14:41 2026 read: IOPS=6, BW=26.8KiB/s (27.4kB/s)(5992KiB/223536msec) clat (msec): min=4, max=742, avg=29.12, stdev=33.28 lat (msec): min=4, max=742, avg=29.12, stdev=33.28 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 8], 10.00th=[ 9], 20.00th=[ 12], | 30.00th=[ 14], 40.00th=[ 17], 50.00th=[ 19], 60.00th=[ 23], | 70.00th=[ 29], 80.00th=[ 40], 90.00th=[ 63], 95.00th=[ 89], | 99.00th=[ 138], 99.50th=[ 167], 99.90th=[ 226], 99.95th=[ 743], | 99.99th=[ 743] bw ( KiB/s): min= 7, max= 110, per=27.37%, avg=28.46, stdev=18.70, samples=409 iops : min= 1, max= 27, avg= 6.54, stdev= 4.74, samples=409 write: IOPS=7, BW=28.2KiB/s (28.8kB/s)(6296KiB/223536msec); 0 zone resets clat (msec): min=31, max=454, avg=114.11, stdev=52.85 lat (msec): min=31, max=454, avg=114.12, stdev=52.85 clat percentiles (msec): | 1.00th=[ 44], 5.00th=[ 54], 10.00th=[ 63], 20.00th=[ 73], | 30.00th=[ 83], 40.00th=[ 92], 50.00th=[ 103], 60.00th=[ 113], | 70.00th=[ 129], 80.00th=[ 148], 90.00th=[ 182], 95.00th=[ 215], | 99.00th=[ 300], 99.50th=[ 347], 99.90th=[ 418], 99.95th=[ 456], | 99.99th=[ 456] bw ( KiB/s): min= 7, max= 63, per=25.53%, avg=27.82, stdev=11.83, samples=439 iops : min= 1, max= 15, avg= 6.37, stdev= 3.03, samples=439 lat (msec) : 10=6.97%, 20=19.30%, 50=17.06%, 100=28.48%, 250=26.92% lat (msec) : 500=1.24%, 750=0.03% cpu : usr=0.04%, sys=1.20%, ctx=5175, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144666: Thu Aug 27 05:14:41 2026 read: IOPS=6, BW=26.5KiB/s (27.1kB/s)(5940KiB/224148msec) clat (msec): min=5, max=643, avg=27.98, stdev=31.72 lat (msec): min=5, max=643, avg=27.98, stdev=31.72 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 8], 10.00th=[ 9], 20.00th=[ 11], | 30.00th=[ 13], 40.00th=[ 16], 50.00th=[ 18], 60.00th=[ 22], | 70.00th=[ 27], 80.00th=[ 39], 90.00th=[ 61], 95.00th=[ 81], | 99.00th=[ 138], 99.50th=[ 194], 99.90th=[ 236], 99.95th=[ 642], | 99.99th=[ 642] bw ( KiB/s): min= 7, max= 111, per=27.74%, avg=28.85, stdev=19.27, samples=401 iops : min= 1, max= 27, avg= 6.64, stdev= 4.87, samples=401 write: IOPS=7, BW=28.3KiB/s (29.0kB/s)(6348KiB/224148msec); 0 zone resets clat (msec): min=31, max=547, avg=114.85, stdev=55.28 lat (msec): min=31, max=547, avg=114.85, stdev=55.28 clat percentiles (msec): | 1.00th=[ 43], 5.00th=[ 55], 10.00th=[ 61], 20.00th=[ 73], | 30.00th=[ 83], 40.00th=[ 92], 50.00th=[ 102], 60.00th=[ 114], | 70.00th=[ 129], 80.00th=[ 150], 90.00th=[ 186], 95.00th=[ 218], | 99.00th=[ 317], 99.50th=[ 355], 99.90th=[ 451], 99.95th=[ 550], | 99.99th=[ 550] bw ( KiB/s): min= 7, max= 64, per=25.67%, avg=27.98, stdev=12.04, samples=441 iops : min= 1, max= 16, avg= 6.41, stdev= 3.09, samples=441 lat (msec) : 10=7.75%, 20=19.69%, 50=15.98%, 100=28.91%, 250=26.17% lat (msec) : 500=1.43%, 750=0.07% cpu : usr=0.05%, sys=1.22%, ctx=5405, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 5 (file:backend.c:481, func=full resid, error=Input/output error): pid=144667: Thu Aug 27 05:14:41 2026 read: IOPS=6, BW=25.9KiB/s (26.6kB/s)(5360KiB/206706msec) clat (msec): min=4, max=389, avg=32.32, stdev=33.71 lat (msec): min=4, max=389, avg=32.32, stdev=33.71 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 12], | 30.00th=[ 15], 40.00th=[ 18], 50.00th=[ 21], 60.00th=[ 26], | 70.00th=[ 33], 80.00th=[ 46], 90.00th=[ 69], 95.00th=[ 90], | 99.00th=[ 169], 99.50th=[ 224], 99.90th=[ 317], 99.95th=[ 388], | 99.99th=[ 388] bw ( KiB/s): min= 7, max= 111, per=26.39%, avg=27.44, stdev=18.57, samples=379 iops : min= 1, max= 27, avg= 6.27, stdev= 4.70, samples=379 write: IOPS=6, BW=26.0KiB/s (27.6kB/s)(5572KiB/206706msec); 0 zone resets clat (msec): min=37, max=667, avg=117.05, stdev=55.33 lat (msec): min=37, max=667, avg=117.05, stdev=55.33 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 55], 10.00th=[ 63], 20.00th=[ 74], | 30.00th=[ 85], 40.00th=[ 94], 50.00th=[ 105], 60.00th=[ 116], | 70.00th=[ 133], 80.00th=[ 155], 90.00th=[ 186], 95.00th=[ 222], | 99.00th=[ 296], 99.50th=[ 330], 99.90th=[ 550], 99.95th=[ 667], | 99.99th=[ 667] bw ( KiB/s): min= 7, max= 56, per=24.42%, avg=26.62, stdev=12.09, samples=406 iops : min= 1, max= 14, avg= 6.07, stdev= 3.11, samples=406 lat (msec) : 10=5.89%, 20=17.63%, 50=17.56%, 100=29.74%, 250=27.58% lat (msec) : 500=1.50%, 750=0.07% cpu : usr=0.04%, sys=1.25%, ctx=4550, majf=0, minf=20 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=1341,1393,0,0 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=144668: Thu Aug 27 05:14:41 2026 read: IOPS=6, BW=27.2KiB/s (27.8kB/s)(6052KiB/222764msec) clat (msec): min=4, max=411, avg=28.75, stdev=30.26 lat (msec): min=4, max=411, avg=28.75, stdev=30.26 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 8], 10.00th=[ 10], 20.00th=[ 12], | 30.00th=[ 14], 40.00th=[ 16], 50.00th=[ 19], 60.00th=[ 23], | 70.00th=[ 29], 80.00th=[ 39], 90.00th=[ 62], 95.00th=[ 88], | 99.00th=[ 142], 99.50th=[ 176], 99.90th=[ 334], 99.95th=[ 414], | 99.99th=[ 414] bw ( KiB/s): min= 7, max= 103, per=28.32%, avg=29.45, stdev=19.40, samples=400 iops : min= 1, max= 25, avg= 6.80, stdev= 4.91, samples=400 write: IOPS=6, BW=27.0KiB/s (28.7kB/s)(6236KiB/222764msec); 0 zone resets clat (msec): min=29, max=721, avg=114.77, stdev=55.51 lat (msec): min=29, max=721, avg=114.78, stdev=55.51 clat percentiles (msec): | 1.00th=[ 45], 5.00th=[ 55], 10.00th=[ 62], 20.00th=[ 72], | 30.00th=[ 82], 40.00th=[ 90], 50.00th=[ 101], 60.00th=[ 115], | 70.00th=[ 130], 80.00th=[ 153], 90.00th=[ 186], 95.00th=[ 215], | 99.00th=[ 288], 99.50th=[ 347], 99.90th=[ 443], 99.95th=[ 718], | 99.99th=[ 718] bw ( KiB/s): min= 7, max= 56, per=25.17%, avg=27.43, stdev=12.09, samples=441 iops : min= 1, max= 14, avg= 6.27, stdev= 3.10, samples=441 lat (msec) : 10=6.74%, 20=19.92%, 50=17.42%, 100=28.94%, 250=25.68% lat (msec) : 500=1.27%, 750=0.03% cpu : usr=0.05%, sys=1.20%, ctx=5252, 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=104KiB/s (107kB/s), 25.9KiB/s-27.2KiB/s (26.6kB/s-27.8kB/s), io=22.8MiB (23.9MB), run=206706-224148msec WRITE: bw=109KiB/s (112kB/s), 26.0KiB/s-28.3KiB/s (27.6kB/s-29.0kB/s), io=23.9MiB (25.0MB), run=206706-224148msec 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=144721: Thu Aug 27 05:15:24 2026 read: IOPS=11, BW=185KiB/s (189kB/s)(5920KiB/32070msec) clat (usec): min=36, max=395892, avg=43632.11, stdev=43620.43 lat (usec): min=36, max=395893, avg=43633.61, stdev=43620.70 clat percentiles (usec): | 1.00th=[ 39], 5.00th=[ 51], 10.00th=[ 57], 20.00th=[ 95], | 30.00th=[ 21627], 40.00th=[ 30278], 50.00th=[ 36963], 60.00th=[ 45351], | 70.00th=[ 55837], 80.00th=[ 70779], 90.00th=[ 87557], 95.00th=[106431], | 99.00th=[256902], 99.50th=[325059], 99.90th=[396362], 99.95th=[396362], | 99.99th=[396362] bw ( KiB/s): min= 31, max= 379, per=25.14%, avg=187.52, stdev=79.11, samples=62 iops : min= 1, max= 23, avg=10.95, stdev= 4.97, samples=62 write: IOPS=12, BW=199KiB/s (203kB/s)(6368KiB/32070msec); 0 zone resets clat (usec): min=1320, max=211986, avg=39950.76, stdev=40735.41 lat (usec): min=1321, max=211987, avg=39954.04, stdev=40734.22 clat percentiles (usec): | 1.00th=[ 1450], 5.00th=[ 1582], 10.00th=[ 1893], 20.00th=[ 5604], | 30.00th=[ 10552], 40.00th=[ 16057], 50.00th=[ 24511], 60.00th=[ 37487], | 70.00th=[ 52167], 80.00th=[ 74974], 90.00th=[ 99091], 95.00th=[122160], | 99.00th=[168821], 99.50th=[185598], 99.90th=[212861], 99.95th=[212861], | 99.99th=[212861] bw ( KiB/s): min= 63, max= 415, per=25.65%, avg=201.34, stdev=74.53, samples=62 iops : min= 3, max= 25, avg=11.84, stdev= 4.69, samples=62 lat (usec) : 50=2.08%, 100=7.81%, 250=0.26%, 500=0.39% lat (msec) : 2=5.47%, 4=3.12%, 10=6.64%, 20=10.42%, 50=30.08% lat (msec) : 100=25.78%, 250=7.42%, 500=0.52% cpu : usr=0.05%, sys=5.05%, ctx=1355, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=144722: Thu Aug 27 05:15:24 2026 read: IOPS=11, BW=182KiB/s (186kB/s)(5744KiB/31594msec) clat (usec): min=34, max=272244, avg=42377.65, stdev=37909.04 lat (usec): min=35, max=272245, avg=42381.32, stdev=37906.01 clat percentiles (usec): | 1.00th=[ 39], 5.00th=[ 52], 10.00th=[ 59], 20.00th=[ 72], | 30.00th=[ 20317], 40.00th=[ 30016], 50.00th=[ 37487], 60.00th=[ 46400], | 70.00th=[ 57934], 80.00th=[ 70779], 90.00th=[ 85459], 95.00th=[109577], | 99.00th=[152044], 99.50th=[196084], 99.90th=[270533], 99.95th=[270533], | 99.99th=[270533] bw ( KiB/s): min= 31, max= 351, per=24.28%, avg=181.16, stdev=77.55, samples=62 iops : min= 1, max= 21, avg=10.56, stdev= 4.86, samples=62 write: IOPS=12, BW=207KiB/s (212kB/s)(6544KiB/31594msec); 0 zone resets clat (usec): min=1299, max=242301, avg=39819.99, stdev=41391.52 lat (usec): min=1300, max=242302, avg=39836.57, stdev=41385.35 clat percentiles (usec): | 1.00th=[ 1401], 5.00th=[ 1614], 10.00th=[ 2376], 20.00th=[ 5932], | 30.00th=[ 9241], 40.00th=[ 15270], 50.00th=[ 28705], 60.00th=[ 40109], | 70.00th=[ 51119], 80.00th=[ 66847], 90.00th=[ 94897], 95.00th=[123208], | 99.00th=[177210], 99.50th=[204473], 99.90th=[242222], 99.95th=[242222], | 99.99th=[242222] bw ( KiB/s): min= 31, max= 382, per=26.27%, avg=206.23, stdev=83.09, samples=62 iops : min= 1, max= 23, avg=12.15, stdev= 5.24, samples=62 lat (usec) : 50=1.95%, 100=8.59%, 250=0.39%, 500=0.26%, 750=0.13% lat (msec) : 2=4.30%, 4=3.39%, 10=9.11%, 20=8.98%, 50=29.30% lat (msec) : 100=26.17%, 250=7.29%, 500=0.13% cpu : usr=0.08%, sys=5.29%, ctx=1325, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=144723: Thu Aug 27 05:15:24 2026 read: IOPS=12, BW=198KiB/s (203kB/s)(6256KiB/31546msec) clat (usec): min=34, max=179267, avg=42828.22, stdev=34691.22 lat (usec): min=34, max=179268, avg=42829.19, stdev=34691.19 clat percentiles (usec): | 1.00th=[ 39], 5.00th=[ 55], 10.00th=[ 59], 20.00th=[ 90], | 30.00th=[ 25035], 40.00th=[ 32900], 50.00th=[ 40109], 60.00th=[ 45876], | 70.00th=[ 55837], 80.00th=[ 68682], 90.00th=[ 92799], 95.00th=[102237], | 99.00th=[149947], 99.50th=[168821], 99.90th=[179307], 99.95th=[179307], | 99.99th=[179307] bw ( KiB/s): min= 31, max= 349, per=26.58%, avg=198.26, stdev=73.90, samples=62 iops : min= 1, max= 21, avg=11.65, stdev= 4.63, samples=62 write: IOPS=11, BW=191KiB/s (196kB/s)(6032KiB/31546msec); 0 zone resets clat (usec): min=1350, max=350838, avg=39151.23, stdev=45999.26 lat (usec): min=1353, max=350841, avg=39154.33, stdev=45999.81 clat percentiles (usec): | 1.00th=[ 1483], 5.00th=[ 1647], 10.00th=[ 1811], 20.00th=[ 5473], | 30.00th=[ 9110], 40.00th=[ 13435], 50.00th=[ 22414], 60.00th=[ 33162], | 70.00th=[ 47973], 80.00th=[ 69731], 90.00th=[ 99091], 95.00th=[127402], | 99.00th=[204473], 99.50th=[316670], 99.90th=[350225], 99.95th=[350225], | 99.99th=[350225] bw ( KiB/s): min= 63, max= 415, per=24.66%, avg=193.61, stdev=86.03, samples=61 iops : min= 3, max= 25, avg=11.36, stdev= 5.45, samples=61 lat (usec) : 50=1.69%, 100=8.85%, 250=0.39%, 500=0.26% lat (msec) : 2=5.08%, 4=2.47%, 10=9.77%, 20=8.59%, 50=30.47% lat (msec) : 100=24.22%, 250=7.81%, 500=0.39% cpu : usr=0.07%, sys=5.45%, ctx=1441, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=144724: Thu Aug 27 05:15:24 2026 read: IOPS=11, BW=192KiB/s (196kB/s)(6032KiB/31447msec) clat (usec): min=32, max=207064, avg=43299.25, stdev=38756.51 lat (usec): min=32, max=207065, avg=43300.33, stdev=38756.36 clat percentiles (usec): | 1.00th=[ 41], 5.00th=[ 52], 10.00th=[ 58], 20.00th=[ 68], | 30.00th=[ 19530], 40.00th=[ 29492], 50.00th=[ 39060], 60.00th=[ 48497], | 70.00th=[ 60031], 80.00th=[ 71828], 90.00th=[ 93848], 95.00th=[108528], | 99.00th=[170918], 99.50th=[196084], 99.90th=[206570], 99.95th=[206570], | 99.99th=[206570] bw ( KiB/s): min= 31, max= 415, per=25.51%, avg=190.33, stdev=76.44, samples=61 iops : min= 1, max= 25, avg=11.15, stdev= 4.83, samples=61 write: IOPS=12, BW=199KiB/s (204kB/s)(6256KiB/31447msec); 0 zone resets clat (usec): min=1384, max=367362, avg=38586.24, stdev=47787.97 lat (usec): min=1386, max=367363, avg=38587.91, stdev=47787.97 clat percentiles (usec): | 1.00th=[ 1483], 5.00th=[ 1729], 10.00th=[ 2311], 20.00th=[ 5080], | 30.00th=[ 9241], 40.00th=[ 12780], 50.00th=[ 18482], 60.00th=[ 33162], | 70.00th=[ 44303], 80.00th=[ 66847], 90.00th=[ 93848], 95.00th=[119014], | 99.00th=[225444], 99.50th=[329253], 99.90th=[367002], 99.95th=[367002], | 99.99th=[367002] bw ( KiB/s): min= 31, max= 447, per=25.11%, avg=197.15, stdev=87.21, samples=61 iops : min= 1, max= 27, avg=11.56, stdev= 5.48, samples=61 lat (usec) : 50=1.69%, 100=10.03%, 250=0.52%, 500=0.13%, 750=0.39% lat (msec) : 2=4.82%, 4=3.91%, 10=8.46%, 20=11.07%, 50=26.43% lat (msec) : 100=24.22%, 250=7.94%, 500=0.39% cpu : usr=0.05%, sys=5.60%, ctx=1406, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=747KiB/s (765kB/s), 182KiB/s-198KiB/s (186kB/s-203kB/s), io=23.4MiB (24.5MB), run=31447-32070msec WRITE: bw=786KiB/s (805kB/s), 191KiB/s-207KiB/s (196kB/s-212kB/s), io=24.6MiB (25.8MB), run=31447-32070msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144716: Thu Aug 27 05:15:59 2026 read: IOPS=5, BW=87.3KiB/s (89.4kB/s)(5920KiB/67780msec) clat (msec): min=5, max=309, avg=39.44, stdev=46.68 lat (msec): min=5, max=309, avg=39.44, stdev=46.68 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 15], 40.00th=[ 18], 50.00th=[ 21], 60.00th=[ 26], | 70.00th=[ 35], 80.00th=[ 56], 90.00th=[ 97], 95.00th=[ 136], | 99.00th=[ 234], 99.50th=[ 275], 99.90th=[ 309], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 30, max= 382, per=28.25%, avg=99.71, stdev=70.01, samples=117 iops : min= 1, max= 23, avg= 5.46, stdev= 4.46, samples=117 write: IOPS=5, BW=93.0KiB/s (96.2kB/s)(6368KiB/67780msec); 0 zone resets clat (msec): min=38, max=555, avg=133.40, stdev=77.28 lat (msec): min=38, max=555, avg=133.40, stdev=77.28 clat percentiles (msec): | 1.00th=[ 46], 5.00th=[ 55], 10.00th=[ 65], 20.00th=[ 75], | 30.00th=[ 87], 40.00th=[ 97], 50.00th=[ 107], 60.00th=[ 122], | 70.00th=[ 148], 80.00th=[ 182], 90.00th=[ 236], 95.00th=[ 305], | 99.00th=[ 405], 99.50th=[ 489], 99.90th=[ 558], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 30, max= 192, per=26.03%, avg=96.58, stdev=51.11, samples=130 iops : min= 1, max= 12, avg= 5.25, stdev= 3.27, samples=130 lat (msec) : 10=4.17%, 20=18.88%, 50=15.63%, 100=27.21%, 250=28.78% lat (msec) : 500=5.21%, 750=0.13% cpu : usr=0.03%, sys=1.14%, ctx=1269, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144717: Thu Aug 27 05:15:59 2026 read: IOPS=5, BW=84.7KiB/s (86.7kB/s)(5744KiB/67805msec) clat (msec): min=5, max=319, avg=37.29, stdev=44.75 lat (msec): min=5, max=319, avg=37.29, stdev=44.75 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 18], 50.00th=[ 21], 60.00th=[ 26], | 70.00th=[ 34], 80.00th=[ 51], 90.00th=[ 84], 95.00th=[ 138], | 99.00th=[ 226], 99.50th=[ 271], 99.90th=[ 321], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 30, max= 320, per=28.72%, avg=101.38, stdev=67.58, samples=112 iops : min= 1, max= 20, avg= 5.56, stdev= 4.27, samples=112 write: IOPS=6, BW=96.5KiB/s (98.8kB/s)(6544KiB/67805msec); 0 zone resets clat (msec): min=36, max=548, avg=132.44, stdev=78.45 lat (msec): min=36, max=548, avg=132.44, stdev=78.45 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 55], 10.00th=[ 59], 20.00th=[ 72], | 30.00th=[ 84], 40.00th=[ 93], 50.00th=[ 106], 60.00th=[ 124], | 70.00th=[ 148], 80.00th=[ 190], 90.00th=[ 239], 95.00th=[ 288], | 99.00th=[ 414], 99.50th=[ 435], 99.90th=[ 550], 99.95th=[ 550], | 99.99th=[ 550] bw ( KiB/s): min= 30, max= 224, per=26.29%, avg=97.54, stdev=53.73, samples=132 iops : min= 1, max= 14, avg= 5.31, stdev= 3.42, samples=132 lat (msec) : 10=5.47%, 20=17.45%, 50=15.89%, 100=28.91%, 250=27.21% lat (msec) : 500=4.95%, 750=0.13% cpu : usr=0.04%, sys=1.06%, ctx=1328, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144718: Thu Aug 27 05:15:59 2026 read: IOPS=5, BW=93.7KiB/s (95.9kB/s)(6256KiB/66767msec) clat (msec): min=6, max=373, avg=37.98, stdev=46.72 lat (msec): min=6, max=373, avg=37.99, stdev=46.72 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 15], 40.00th=[ 18], 50.00th=[ 22], 60.00th=[ 25], | 70.00th=[ 31], 80.00th=[ 46], 90.00th=[ 94], 95.00th=[ 148], | 99.00th=[ 239], 99.50th=[ 253], 99.90th=[ 376], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 30, max= 415, per=29.45%, avg=103.97, stdev=79.41, samples=119 iops : min= 1, max= 25, avg= 5.71, stdev= 4.97, samples=119 write: IOPS=5, BW=90.3KiB/s (92.5kB/s)(6032KiB/66767msec); 0 zone resets clat (msec): min=37, max=482, avg=137.13, stdev=78.86 lat (msec): min=37, max=482, avg=137.14, stdev=78.86 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 57], 10.00th=[ 66], 20.00th=[ 80], | 30.00th=[ 89], 40.00th=[ 100], 50.00th=[ 112], 60.00th=[ 126], | 70.00th=[ 144], 80.00th=[ 194], 90.00th=[ 257], 95.00th=[ 309], | 99.00th=[ 393], 99.50th=[ 430], 99.90th=[ 481], 99.95th=[ 481], | 99.99th=[ 481] bw ( KiB/s): min= 30, max= 224, per=25.22%, avg=93.58, stdev=47.09, samples=127 iops : min= 1, max= 14, avg= 5.06, stdev= 3.03, samples=127 lat (msec) : 10=3.52%, 20=19.92%, 50=18.62%, 100=24.74%, 250=27.60% lat (msec) : 500=5.60% cpu : usr=0.04%, sys=1.14%, ctx=1399, 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=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=144719: Thu Aug 27 05:15:59 2026 read: IOPS=5, BW=90.6KiB/s (92.8kB/s)(6032KiB/66565msec) clat (msec): min=6, max=233, avg=36.76, stdev=40.19 lat (msec): min=6, max=233, avg=36.76, stdev=40.19 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 18], 50.00th=[ 21], 60.00th=[ 26], | 70.00th=[ 33], 80.00th=[ 50], 90.00th=[ 89], 95.00th=[ 131], | 99.00th=[ 207], 99.50th=[ 220], 99.90th=[ 234], 99.95th=[ 234], | 99.99th=[ 234] bw ( KiB/s): min= 30, max= 384, per=28.83%, avg=101.77, stdev=74.21, samples=115 iops : min= 1, max= 24, avg= 5.57, stdev= 4.72, samples=115 write: IOPS=5, BW=93.0KiB/s (96.2kB/s)(6256KiB/66565msec); 0 zone resets clat (msec): min=32, max=502, avg=134.37, stdev=77.76 lat (msec): min=32, max=502, avg=134.37, stdev=77.76 clat percentiles (msec): | 1.00th=[ 43], 5.00th=[ 54], 10.00th=[ 62], 20.00th=[ 77], | 30.00th=[ 85], 40.00th=[ 97], 50.00th=[ 109], 60.00th=[ 125], | 70.00th=[ 150], 80.00th=[ 186], 90.00th=[ 249], 95.00th=[ 292], | 99.00th=[ 397], 99.50th=[ 426], 99.90th=[ 502], 99.95th=[ 502], | 99.99th=[ 502] bw ( KiB/s): min= 30, max= 254, per=25.30%, avg=93.87, stdev=52.66, samples=130 iops : min= 1, max= 15, avg= 5.07, stdev= 3.31, samples=130 lat (msec) : 10=3.91%, 20=19.66%, 50=17.19%, 100=26.04%, 250=28.13% lat (msec) : 500=4.95%, 750=0.13% cpu : usr=0.03%, sys=1.12%, ctx=1391, 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=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=353KiB/s (362kB/s), 84.7KiB/s-93.7KiB/s (86.7kB/s-95.9kB/s), io=23.4MiB (24.5MB), run=66565-67805msec WRITE: bw=372KiB/s (381kB/s), 90.3KiB/s-96.5KiB/s (92.5kB/s-98.8kB/s), io=24.6MiB (25.8MB), run=66565-67805msec 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=144746: Thu Aug 27 05:16:11 2026 read: IOPS=2, BW=2216KiB/s (2269kB/s)(7168KiB/3235msec) clat (msec): min=198, max=393, avg=249.24, stdev=68.05 lat (msec): min=198, max=393, avg=249.24, stdev=68.05 clat percentiles (msec): | 1.00th=[ 199], 5.00th=[ 199], 10.00th=[ 199], 20.00th=[ 203], | 30.00th=[ 215], 40.00th=[ 215], 50.00th=[ 220], 60.00th=[ 257], | 70.00th=[ 257], 80.00th=[ 259], 90.00th=[ 393], 95.00th=[ 393], | 99.00th=[ 393], 99.50th=[ 393], 99.90th=[ 393], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 2000, max= 4748, per=51.56%, avg=2689.50, stdev=1372.34, samples=4 iops : min= 1, max= 4, avg= 1.75, stdev= 1.50, samples=4 write: IOPS=1, BW=1583KiB/s (1621kB/s)(5120KiB/3235msec); 0 zone resets clat (msec): min=213, max=356, avg=297.46, stdev=54.01 lat (msec): min=213, max=356, avg=297.74, stdev=53.97 clat percentiles (msec): | 1.00th=[ 213], 5.00th=[ 213], 10.00th=[ 213], 20.00th=[ 213], | 30.00th=[ 284], 40.00th=[ 284], 50.00th=[ 305], 60.00th=[ 305], | 70.00th=[ 330], 80.00th=[ 330], 90.00th=[ 359], 95.00th=[ 359], | 99.00th=[ 359], 99.50th=[ 359], 99.90th=[ 359], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 1996, max= 4047, per=34.41%, avg=2513.25, stdev=1022.51, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (msec) : 250=41.67%, 500=58.33% cpu : usr=0.00%, sys=20.41%, ctx=312, 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=144747: Thu Aug 27 05:16:11 2026 read: IOPS=0, BW=522KiB/s (534kB/s)(2048KiB/3926msec) clat (msec): min=73, max=277, avg=175.64, stdev=144.58 lat (msec): min=73, max=277, avg=175.64, stdev=144.58 clat percentiles (msec): | 1.00th=[ 74], 5.00th=[ 74], 10.00th=[ 74], 20.00th=[ 74], | 30.00th=[ 74], 40.00th=[ 74], 50.00th=[ 74], 60.00th=[ 279], | 70.00th=[ 279], 80.00th=[ 279], 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= 1646, max= 1996, per=34.91%, avg=1821.00, stdev=247.49, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2608KiB/s (2671kB/s)(10.0MiB/3926msec); 0 zone resets clat (msec): min=95, max=785, avg=357.16, stdev=224.49 lat (msec): min=95, max=785, avg=357.26, stdev=224.48 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 96], 10.00th=[ 96], 20.00th=[ 144], | 30.00th=[ 182], 40.00th=[ 264], 50.00th=[ 264], 60.00th=[ 296], | 70.00th=[ 376], 80.00th=[ 567], 90.00th=[ 600], 95.00th=[ 785], | 99.00th=[ 785], 99.50th=[ 785], 99.90th=[ 785], 99.95th=[ 785], | 99.99th=[ 785] bw ( KiB/s): min= 1996, max= 4015, per=41.21%, avg=3009.33, stdev=1098.77, samples=6 iops : min= 1, max= 3, avg= 2.00, stdev= 1.10, samples=6 lat (msec) : 100=16.67%, 250=16.67%, 500=41.67%, 750=16.67%, 1000=8.33% cpu : usr=0.00%, sys=16.56%, ctx=178, 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=144748: Thu Aug 27 05:16:11 2026 read: IOPS=2, BW=2108KiB/s (2159kB/s)(6144KiB/2914msec) clat (msec): min=5, max=445, avg=133.73, stdev=164.83 lat (msec): min=5, max=445, avg=133.73, stdev=164.83 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 6], 10.00th=[ 6], 20.00th=[ 7], | 30.00th=[ 7], 40.00th=[ 60], 50.00th=[ 60], 60.00th=[ 136], | 70.00th=[ 150], 80.00th=[ 150], 90.00th=[ 447], 95.00th=[ 447], | 99.00th=[ 447], 99.50th=[ 447], 99.90th=[ 447], 99.95th=[ 447], | 99.99th=[ 447] bw ( KiB/s): min= 1996, max= 4047, per=64.18%, avg=3347.67, stdev=1170.81, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=2, BW=2108KiB/s (2159kB/s)(6144KiB/2914msec); 0 zone resets clat (msec): min=110, max=1048, avg=351.57, stdev=352.85 lat (msec): min=110, max=1048, avg=351.66, stdev=352.85 clat percentiles (msec): | 1.00th=[ 111], 5.00th=[ 111], 10.00th=[ 111], 20.00th=[ 144], | 30.00th=[ 144], 40.00th=[ 171], 50.00th=[ 171], 60.00th=[ 296], | 70.00th=[ 342], 80.00th=[ 342], 90.00th=[ 1045], 95.00th=[ 1045], | 99.00th=[ 1045], 99.50th=[ 1045], 99.90th=[ 1045], 99.95th=[ 1045], | 99.99th=[ 1045] bw ( KiB/s): min= 1996, max= 4000, per=41.66%, avg=3042.33, stdev=1004.94, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 lat (msec) : 10=16.67%, 100=8.33%, 250=41.67%, 500=25.00%, 2000=8.33% cpu : usr=0.00%, sys=15.55%, ctx=131, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144749: Thu Aug 27 05:16:11 2026 read: IOPS=1, BW=1446KiB/s (1481kB/s)(5120KiB/3541msec) clat (usec): min=416, max=357205, avg=188327.13, stdev=133822.38 lat (usec): min=417, max=357206, avg=188328.28, stdev=133822.40 clat percentiles (usec): | 1.00th=[ 416], 5.00th=[ 416], 10.00th=[ 416], 20.00th=[ 416], | 30.00th=[132645], 40.00th=[132645], 50.00th=[193987], 60.00th=[193987], | 70.00th=[256902], 80.00th=[256902], 90.00th=[358613], 95.00th=[358613], | 99.00th=[358613], 99.50th=[358613], 99.90th=[358613], 99.95th=[358613], | 99.99th=[358613] bw ( KiB/s): min= 3992, max= 4007, per=76.68%, avg=3999.50, stdev=10.61, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=1, BW=2024KiB/s (2073kB/s)(7168KiB/3541msec); 0 zone resets clat (msec): min=139, max=898, avg=370.71, stdev=264.94 lat (msec): min=139, max=898, avg=371.14, stdev=265.13 clat percentiles (msec): | 1.00th=[ 140], 5.00th=[ 140], 10.00th=[ 140], 20.00th=[ 167], | 30.00th=[ 201], 40.00th=[ 201], 50.00th=[ 296], 60.00th=[ 414], | 70.00th=[ 414], 80.00th=[ 481], 90.00th=[ 902], 95.00th=[ 902], | 99.00th=[ 902], 99.50th=[ 902], 99.90th=[ 902], 99.95th=[ 902], | 99.99th=[ 902] bw ( KiB/s): min= 1532, max= 4047, per=39.66%, avg=2896.50, stdev=1319.40, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 lat (usec) : 500=8.33% lat (msec) : 250=41.67%, 500=41.67%, 1000=8.33% cpu : usr=0.00%, sys=15.25%, ctx=183, 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=5217KiB/s (5342kB/s), 522KiB/s-2216KiB/s (534kB/s-2269kB/s), io=20.0MiB (20.0MB), run=2914-3926msec WRITE: bw=7303KiB/s (7478kB/s), 1583KiB/s-2608KiB/s (1621kB/s-2671kB/s), io=28.0MiB (29.4MB), run=2914-3926msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144740: Thu Aug 27 05:16:12 2026 read: IOPS=2, BW=2151KiB/s (2203kB/s)(7168KiB/3332msec) clat (msec): min=67, max=460, avg=149.51, stdev=142.73 lat (msec): min=67, max=460, avg=149.52, stdev=142.73 clat percentiles (msec): | 1.00th=[ 68], 5.00th=[ 68], 10.00th=[ 68], 20.00th=[ 74], | 30.00th=[ 80], 40.00th=[ 80], 50.00th=[ 86], 60.00th=[ 96], | 70.00th=[ 96], 80.00th=[ 184], 90.00th=[ 460], 95.00th=[ 460], | 99.00th=[ 460], 99.50th=[ 460], 99.90th=[ 460], 99.95th=[ 460], | 99.99th=[ 460] bw ( KiB/s): min= 2007, max= 6011, per=91.48%, avg=4027.00, stdev=2002.24, samples=3 iops : min= 1, max= 5, avg= 3.00, stdev= 2.00, samples=3 write: IOPS=1, BW=1537KiB/s (1573kB/s)(5120KiB/3332msec); 0 zone resets clat (msec): min=251, max=693, avg=450.13, stdev=202.78 lat (msec): min=251, max=697, avg=451.02, stdev=203.97 clat percentiles (msec): | 1.00th=[ 253], 5.00th=[ 253], 10.00th=[ 253], 20.00th=[ 253], | 30.00th=[ 257], 40.00th=[ 257], 50.00th=[ 435], 60.00th=[ 435], | 70.00th=[ 617], 80.00th=[ 617], 90.00th=[ 693], 95.00th=[ 693], | 99.00th=[ 693], 99.50th=[ 693], 99.90th=[ 693], 99.95th=[ 693], | 99.99th=[ 693] bw ( KiB/s): min= 1885, max= 2039, per=32.28%, avg=1989.50, stdev=71.36, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 lat (msec) : 100=41.67%, 250=8.33%, 500=33.33%, 750=16.67% cpu : usr=0.21%, sys=5.58%, ctx=79, 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=144741: Thu Aug 27 05:16:12 2026 read: IOPS=0, BW=440KiB/s (451kB/s)(2048KiB/4652msec) clat (msec): min=65, max=666, avg=366.18, stdev=425.18 lat (msec): min=65, max=666, avg=366.18, stdev=425.18 clat percentiles (msec): | 1.00th=[ 66], 5.00th=[ 66], 10.00th=[ 66], 20.00th=[ 66], | 30.00th=[ 66], 40.00th=[ 66], 50.00th=[ 66], 60.00th=[ 667], | 70.00th=[ 667], 80.00th=[ 667], 90.00th=[ 667], 95.00th=[ 667], | 99.00th=[ 667], 99.50th=[ 667], 99.90th=[ 667], 99.95th=[ 667], | 99.99th=[ 667] bw ( KiB/s): min= 1939, max= 2043, per=45.23%, avg=1991.00, stdev=73.54, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2201KiB/s (2254kB/s)(10.0MiB/4652msec); 0 zone resets clat (msec): min=78, max=817, avg=389.63, stdev=244.19 lat (msec): min=79, max=817, avg=389.73, stdev=244.18 clat percentiles (msec): | 1.00th=[ 80], 5.00th=[ 80], 10.00th=[ 80], 20.00th=[ 167], | 30.00th=[ 228], 40.00th=[ 241], 50.00th=[ 249], 60.00th=[ 317], | 70.00th=[ 592], 80.00th=[ 600], 90.00th=[ 609], 95.00th=[ 818], | 99.00th=[ 818], 99.50th=[ 818], 99.90th=[ 818], 99.95th=[ 818], | 99.99th=[ 818] bw ( KiB/s): min= 1885, max= 3953, per=41.23%, avg=2540.86, stdev=951.09, samples=7 iops : min= 1, max= 3, avg= 1.57, stdev= 0.98, samples=7 lat (msec) : 100=16.67%, 250=33.33%, 500=8.33%, 750=33.33%, 1000=8.33% cpu : usr=0.11%, sys=5.46%, ctx=96, 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=144742: Thu Aug 27 05:16:12 2026 read: IOPS=1, BW=1370KiB/s (1403kB/s)(6144KiB/4485msec) clat (msec): min=76, max=526, avg=338.98, stdev=172.14 lat (msec): min=76, max=526, avg=338.98, stdev=172.14 clat percentiles (msec): | 1.00th=[ 77], 5.00th=[ 77], 10.00th=[ 77], 20.00th=[ 253], | 30.00th=[ 253], 40.00th=[ 305], 50.00th=[ 305], 60.00th=[ 347], | 70.00th=[ 527], 80.00th=[ 527], 90.00th=[ 527], 95.00th=[ 527], | 99.00th=[ 527], 99.50th=[ 527], 99.90th=[ 527], 99.95th=[ 527], | 99.99th=[ 527] bw ( KiB/s): min= 1892, max= 2039, per=45.19%, avg=1989.20, stdev=62.67, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 write: IOPS=1, BW=1370KiB/s (1403kB/s)(6144KiB/4485msec); 0 zone resets clat (msec): min=243, max=673, avg=406.46, stdev=202.55 lat (msec): min=243, max=673, avg=406.57, stdev=202.54 clat percentiles (msec): | 1.00th=[ 245], 5.00th=[ 245], 10.00th=[ 245], 20.00th=[ 253], | 30.00th=[ 253], 40.00th=[ 275], 50.00th=[ 275], 60.00th=[ 338], | 70.00th=[ 659], 80.00th=[ 659], 90.00th=[ 676], 95.00th=[ 676], | 99.00th=[ 676], 99.50th=[ 676], 99.90th=[ 676], 99.95th=[ 676], | 99.99th=[ 676] bw ( KiB/s): min= 2015, max= 3923, per=43.47%, avg=2679.25, stdev=897.94, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 lat (msec) : 100=8.33%, 250=8.33%, 500=50.00%, 750=33.33% cpu : usr=0.00%, sys=3.41%, ctx=79, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144743: Thu Aug 27 05:16:12 2026 read: IOPS=1, BW=1345KiB/s (1377kB/s)(5120KiB/3808msec) clat (msec): min=168, max=609, avg=345.07, stdev=179.34 lat (msec): min=168, max=609, avg=345.07, stdev=179.34 clat percentiles (msec): | 1.00th=[ 169], 5.00th=[ 169], 10.00th=[ 169], 20.00th=[ 169], | 30.00th=[ 236], 40.00th=[ 236], 50.00th=[ 268], 60.00th=[ 268], | 70.00th=[ 443], 80.00th=[ 443], 90.00th=[ 609], 95.00th=[ 609], | 99.00th=[ 609], 99.50th=[ 609], 99.90th=[ 609], 99.95th=[ 609], | 99.99th=[ 609] bw ( KiB/s): min= 2007, max= 3771, per=59.19%, avg=2605.67, stdev=1009.34, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=1, BW=1882KiB/s (1928kB/s)(7168KiB/3808msec); 0 zone resets clat (msec): min=166, max=509, avg=292.59, stdev=136.79 lat (msec): min=167, max=509, avg=292.72, stdev=136.78 clat percentiles (msec): | 1.00th=[ 167], 5.00th=[ 167], 10.00th=[ 167], 20.00th=[ 180], | 30.00th=[ 226], 40.00th=[ 226], 50.00th=[ 230], 60.00th=[ 279], | 70.00th=[ 279], 80.00th=[ 460], 90.00th=[ 510], 95.00th=[ 510], | 99.00th=[ 510], 99.50th=[ 510], 99.90th=[ 510], 99.95th=[ 510], | 99.99th=[ 510] bw ( KiB/s): min= 1988, max= 6131, per=57.65%, avg=3553.25, stdev=1972.47, samples=4 iops : min= 1, max= 5, avg= 2.50, stdev= 1.91, samples=4 lat (msec) : 250=50.00%, 500=33.33%, 750=16.67% cpu : usr=0.08%, sys=4.65%, ctx=44, 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=4402KiB/s (4508kB/s), 440KiB/s-2151KiB/s (451kB/s-2203kB/s), io=20.0MiB (20.0MB), run=3332-4652msec WRITE: bw=6163KiB/s (6311kB/s), 1370KiB/s-2201KiB/s (1403kB/s-2254kB/s), io=28.0MiB (29.4MB), run=3332-4652msec 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=144756: Thu Aug 27 05:16:25 2026 read: IOPS=1, BW=5267KiB/s (5393kB/s)(12.0MiB/2333msec) clat (msec): min=554, max=856, avg=748.29, stdev=168.54 lat (msec): min=554, max=856, avg=748.29, stdev=168.54 clat percentiles (msec): | 1.00th=[ 558], 5.00th=[ 558], 10.00th=[ 558], 20.00th=[ 558], | 30.00th=[ 558], 40.00th=[ 835], 50.00th=[ 835], 60.00th=[ 835], | 70.00th=[ 860], 80.00th=[ 860], 90.00th=[ 860], 95.00th=[ 860], | 99.00th=[ 860], 99.50th=[ 860], 99.90th=[ 860], 99.95th=[ 860], | 99.99th=[ 860] bw ( KiB/s): min= 5696, max= 8094, per=100.00%, avg=6895.00, stdev=1695.64, 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=15.44%, ctx=221, 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=144757: Thu Aug 27 05:16:25 2026 read: IOPS=0, BW=1204KiB/s (1233kB/s)(4096KiB/3403msec) clat (nsec): min=638800k, max=638800k, avg=638800100.00, stdev= 0.00 lat (nsec): min=638803k, max=638803k, avg=638802653.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 642], 5.00th=[ 642], 10.00th=[ 642], 20.00th=[ 642], | 30.00th=[ 642], 40.00th=[ 642], 50.00th=[ 642], 60.00th=[ 642], | 70.00th=[ 642], 80.00th=[ 642], 90.00th=[ 642], 95.00th=[ 642], | 99.00th=[ 642], 99.50th=[ 642], 99.90th=[ 642], 99.95th=[ 642], | 99.99th=[ 642] bw ( KiB/s): min= 8094, max= 8094, per=100.00%, avg=8094.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2407KiB/s (2465kB/s)(8192KiB/3403msec); 0 zone resets clat (msec): min=716, max=2006, avg=1361.51, stdev=911.56 lat (msec): min=717, max=2006, avg=1361.85, stdev=911.51 clat percentiles (msec): | 1.00th=[ 718], 5.00th=[ 718], 10.00th=[ 718], 20.00th=[ 718], | 30.00th=[ 718], 40.00th=[ 718], 50.00th=[ 718], 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= 8143, max= 8143, per=84.57%, avg=8143.00, 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=3.38%, ctx=95, 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=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=144760: Thu Aug 27 05:16:25 2026 write: IOPS=1, BW=5948KiB/s (6090kB/s)(12.0MiB/2066msec); 0 zone resets clat (msec): min=577, max=864, avg=673.25, stdev=165.73 lat (msec): min=577, max=865, avg=673.65, stdev=165.76 clat percentiles (msec): | 1.00th=[ 575], 5.00th=[ 575], 10.00th=[ 575], 20.00th=[ 575], | 30.00th=[ 575], 40.00th=[ 575], 50.00th=[ 575], 60.00th=[ 575], | 70.00th=[ 869], 80.00th=[ 869], 90.00th=[ 869], 95.00th=[ 869], | 99.00th=[ 869], 99.50th=[ 869], 99.90th=[ 869], 99.95th=[ 869], | 99.99th=[ 869] bw ( KiB/s): min= 8094, max= 8143, per=84.31%, avg=8118.50, stdev=34.65, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=66.67%, 1000=33.33% cpu : usr=0.00%, sys=5.86%, ctx=39, 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=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=144761: Thu Aug 27 05:16:25 2026 write: IOPS=0, BW=4058KiB/s (4156kB/s)(12.0MiB/3028msec); 0 zone resets clat (msec): min=288, max=1726, avg=982.41, stdev=720.13 lat (msec): min=289, max=1726, avg=982.80, stdev=720.02 clat percentiles (msec): | 1.00th=[ 288], 5.00th=[ 288], 10.00th=[ 288], 20.00th=[ 288], | 30.00th=[ 288], 40.00th=[ 936], 50.00th=[ 936], 60.00th=[ 936], | 70.00th=[ 1720], 80.00th=[ 1720], 90.00th=[ 1720], 95.00th=[ 1720], | 99.00th=[ 1720], 99.50th=[ 1720], 99.90th=[ 1720], 99.95th=[ 1720], | 99.99th=[ 1720] bw ( KiB/s): min= 8047, max= 8047, per=83.57%, avg=8047.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=3.57%, ctx=33, 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=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=4815KiB/s (4930kB/s), 1204KiB/s-5267KiB/s (1233kB/s-5393kB/s), io=16.0MiB (16.8MB), run=2333-3403msec WRITE: bw=9629KiB/s (9860kB/s), 2407KiB/s-5948KiB/s (2465kB/s-6090kB/s), io=32.0MiB (33.6MB), run=2066-3403msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144758: Thu Aug 27 05:16:25 2026 read: IOPS=0, BW=3702KiB/s (3791kB/s)(12.0MiB/3319msec) clat (msec): min=204, max=1834, avg=1037.79, stdev=815.81 lat (msec): min=204, max=1834, avg=1037.79, stdev=815.81 clat percentiles (msec): | 1.00th=[ 205], 5.00th=[ 205], 10.00th=[ 205], 20.00th=[ 205], | 30.00th=[ 205], 40.00th=[ 1083], 50.00th=[ 1083], 60.00th=[ 1083], | 70.00th=[ 1838], 80.00th=[ 1838], 90.00th=[ 1838], 95.00th=[ 1838], | 99.00th=[ 1838], 99.50th=[ 1838], 99.90th=[ 1838], 99.95th=[ 1838], | 99.99th=[ 1838] 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 lat (msec) : 250=33.33%, 2000=66.67% cpu : usr=0.00%, sys=3.29%, ctx=56, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144759: Thu Aug 27 05:16:25 2026 read: IOPS=0, BW=1057KiB/s (1083kB/s)(4096KiB/3874msec) clat (nsec): min=1248.3M, max=1248.3M, avg=1248319843.00, stdev= 0.00 lat (nsec): min=1248.3M, max=1248.3M, avg=1248321942.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1250], 5.00th=[ 1250], 10.00th=[ 1250], 20.00th=[ 1250], | 30.00th=[ 1250], 40.00th=[ 1250], 50.00th=[ 1250], 60.00th=[ 1250], | 70.00th=[ 1250], 80.00th=[ 1250], 90.00th=[ 1250], 95.00th=[ 1250], | 99.00th=[ 1250], 99.50th=[ 1250], 99.90th=[ 1250], 99.95th=[ 1250], | 99.99th=[ 1250] bw ( KiB/s): min= 7846, max= 7846, per=100.00%, avg=7846.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2115KiB/s (2165kB/s)(8192KiB/3874msec); 0 zone resets clat (msec): min=1183, max=1262, avg=1223.28, stdev=56.01 lat (msec): min=1184, max=1263, avg=1223.65, stdev=55.93 clat percentiles (msec): | 1.00th=[ 1183], 5.00th=[ 1183], 10.00th=[ 1183], 20.00th=[ 1183], | 30.00th=[ 1183], 40.00th=[ 1183], 50.00th=[ 1183], 60.00th=[ 1267], | 70.00th=[ 1267], 80.00th=[ 1267], 90.00th=[ 1267], 95.00th=[ 1267], | 99.00th=[ 1267], 99.50th=[ 1267], 99.90th=[ 1267], 99.95th=[ 1267], | 99.99th=[ 1267] bw ( KiB/s): min= 8175, max= 8175, per=100.00%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 2000=100.00% cpu : usr=0.00%, sys=2.74%, ctx=63, 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=144762: Thu Aug 27 05:16:25 2026 write: IOPS=0, BW=3051KiB/s (3124kB/s)(12.0MiB/4028msec); 0 zone resets clat (msec): min=329, max=1840, avg=1328.11, stdev=864.78 lat (msec): min=329, max=1840, avg=1328.54, stdev=864.86 clat percentiles (msec): | 1.00th=[ 330], 5.00th=[ 330], 10.00th=[ 330], 20.00th=[ 330], | 30.00th=[ 330], 40.00th=[ 1821], 50.00th=[ 1821], 60.00th=[ 1821], | 70.00th=[ 1838], 80.00th=[ 1838], 90.00th=[ 1838], 95.00th=[ 1838], | 99.00th=[ 1838], 99.50th=[ 1838], 99.90th=[ 1838], 99.95th=[ 1838], | 99.99th=[ 1838] bw ( KiB/s): min= 7757, max= 7757, per=95.35%, avg=7757.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.05%, sys=3.10%, ctx=58, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144763: Thu Aug 27 05:16:25 2026 write: IOPS=1, BW=5260KiB/s (5387kB/s)(12.0MiB/2336msec); 0 zone resets clat (msec): min=392, max=1411, avg=750.94, stdev=572.76 lat (msec): min=393, max=1411, avg=751.32, stdev=572.72 clat percentiles (msec): | 1.00th=[ 393], 5.00th=[ 393], 10.00th=[ 393], 20.00th=[ 393], | 30.00th=[ 393], 40.00th=[ 447], 50.00th=[ 447], 60.00th=[ 447], | 70.00th=[ 1418], 80.00th=[ 1418], 90.00th=[ 1418], 95.00th=[ 1418], | 99.00th=[ 1418], 99.50th=[ 1418], 99.90th=[ 1418], 99.95th=[ 1418], | 99.99th=[ 1418] bw ( KiB/s): min= 5417, max= 8078, per=82.94%, avg=6747.50, stdev=1881.61, 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=0.00%, sys=4.75%, ctx=44, 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=4229KiB/s (4331kB/s), 1057KiB/s-3702KiB/s (1083kB/s-3791kB/s), io=16.0MiB (16.8MB), run=3319-3874msec WRITE: bw=8135KiB/s (8330kB/s), 2115KiB/s-5260KiB/s (2165kB/s-5387kB/s), io=32.0MiB (33.6MB), run=2336-4028msec