== sanity test 398b: DIO and buffer IO race ============== 09:05:32 (1786194332) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 2.7914 s, 18.0 MB/s mix direct rw 4096 by fio with 4 jobs... mix buffer rw 4096 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=180406: Sat Aug 8 09:06:32 2026 read: IOPS=29, BW=116KiB/s (119kB/s)(5992KiB/51595msec) clat (usec): min=50, max=95925, avg=18249.56, stdev=9368.15 lat (usec): min=50, max=95925, avg=18250.24, stdev=9368.19 clat percentiles (usec): | 1.00th=[ 110], 5.00th=[ 7635], 10.00th=[ 8848], 20.00th=[10945], | 30.00th=[12780], 40.00th=[14746], 50.00th=[16909], 60.00th=[18744], | 70.00th=[21103], 80.00th=[24249], 90.00th=[29754], 95.00th=[33817], | 99.00th=[51119], 99.50th=[56361], 99.90th=[67634], 99.95th=[95945], | 99.99th=[95945] bw ( KiB/s): min= 19, max= 184, per=24.92%, avg=115.86, stdev=26.81, samples=102 iops : min= 4, max= 46, avg=28.55, stdev= 6.77, samples=102 write: IOPS=30, BW=122KiB/s (125kB/s)(6296KiB/51595msec); 0 zone resets clat (usec): min=741, max=696004, avg=15275.71, stdev=20437.46 lat (usec): min=742, max=696005, avg=15276.57, stdev=20437.47 clat percentiles (usec): | 1.00th=[ 1139], 5.00th=[ 2671], 10.00th=[ 3195], 20.00th=[ 4424], | 30.00th=[ 7439], 40.00th=[ 10159], 50.00th=[ 12256], 60.00th=[ 15270], | 70.00th=[ 18744], 80.00th=[ 23462], 90.00th=[ 30016], 95.00th=[ 35390], | 99.00th=[ 48497], 99.50th=[ 59507], 99.90th=[104334], 99.95th=[692061], | 99.99th=[692061] bw ( KiB/s): min= 48, max= 214, per=25.25%, avg=122.99, stdev=33.20, samples=101 iops : min= 12, max= 53, avg=30.34, stdev= 8.23, samples=101 lat (usec) : 100=0.36%, 250=0.62%, 500=0.07%, 750=0.10%, 1000=0.20% lat (msec) : 2=0.65%, 4=8.07%, 10=17.90%, 20=41.18%, 50=29.88% lat (msec) : 100=0.91%, 250=0.03%, 750=0.03% cpu : usr=0.11%, sys=25.05%, ctx=9963, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180407: Sat Aug 8 09:06:32 2026 read: IOPS=29, BW=116KiB/s (119kB/s)(5940KiB/51010msec) clat (usec): min=46, max=116739, avg=18414.34, stdev=10046.34 lat (usec): min=47, max=116740, avg=18415.05, stdev=10046.35 clat percentiles (usec): | 1.00th=[ 116], 5.00th=[ 7635], 10.00th=[ 9110], 20.00th=[ 10683], | 30.00th=[ 12518], 40.00th=[ 14484], 50.00th=[ 16450], 60.00th=[ 18744], | 70.00th=[ 21103], 80.00th=[ 24773], 90.00th=[ 30278], 95.00th=[ 36963], | 99.00th=[ 55313], 99.50th=[ 61080], 99.90th=[ 73925], 99.95th=[116917], | 99.99th=[116917] bw ( KiB/s): min= 6, max= 184, per=24.98%, avg=116.17, stdev=29.01, samples=101 iops : min= 1, max= 46, avg=28.62, stdev= 7.28, samples=101 write: IOPS=31, BW=124KiB/s (127kB/s)(6348KiB/51010msec); 0 zone resets clat (usec): min=735, max=699879, avg=14783.71, stdev=20301.97 lat (usec): min=736, max=699879, avg=14784.60, stdev=20302.02 clat percentiles (usec): | 1.00th=[ 1352], 5.00th=[ 2638], 10.00th=[ 3163], 20.00th=[ 4359], | 30.00th=[ 6652], 40.00th=[ 9634], 50.00th=[ 11994], 60.00th=[ 14877], | 70.00th=[ 18220], 80.00th=[ 22676], 90.00th=[ 28967], 95.00th=[ 34866], | 99.00th=[ 47449], 99.50th=[ 56886], 99.90th=[ 74974], 99.95th=[700449], | 99.99th=[700449] bw ( KiB/s): min= 19, max= 208, per=25.40%, avg=123.70, stdev=33.27, samples=101 iops : min= 4, max= 52, avg=30.51, stdev= 8.33, samples=101 lat (usec) : 50=0.03%, 100=0.20%, 250=0.78%, 750=0.03%, 1000=0.10% lat (msec) : 2=0.88%, 4=8.37%, 10=18.78%, 20=40.92%, 50=28.91% lat (msec) : 100=0.94%, 250=0.03%, 750=0.03% cpu : usr=0.11%, sys=25.48%, ctx=9935, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180408: Sat Aug 8 09:06:32 2026 read: IOPS=29, BW=118KiB/s (120kB/s)(6028KiB/51231msec) clat (usec): min=49, max=75867, avg=18080.13, stdev=9347.96 lat (usec): min=49, max=75868, avg=18080.96, stdev=9348.03 clat percentiles (usec): | 1.00th=[ 119], 5.00th=[ 7898], 10.00th=[ 8979], 20.00th=[10421], | 30.00th=[12256], 40.00th=[14091], 50.00th=[16450], 60.00th=[18744], | 70.00th=[21103], 80.00th=[24511], 90.00th=[29754], 95.00th=[35390], | 99.00th=[48497], 99.50th=[55313], 99.90th=[69731], 99.95th=[76022], | 99.99th=[76022] bw ( KiB/s): min= 13, max= 191, per=25.20%, avg=117.17, stdev=30.81, samples=101 iops : min= 3, max= 47, avg=28.88, stdev= 7.66, samples=101 write: IOPS=30, BW=122KiB/s (125kB/s)(6260KiB/51231msec); 0 zone resets clat (usec): min=876, max=638699, avg=15175.07, stdev=19232.84 lat (usec): min=876, max=638700, avg=15176.35, stdev=19232.90 clat percentiles (usec): | 1.00th=[ 1729], 5.00th=[ 2835], 10.00th=[ 3261], 20.00th=[ 4490], | 30.00th=[ 7504], 40.00th=[ 10159], 50.00th=[ 12649], 60.00th=[ 15008], | 70.00th=[ 18744], 80.00th=[ 22938], 90.00th=[ 29230], 95.00th=[ 35390], | 99.00th=[ 50594], 99.50th=[ 60031], 99.90th=[ 93848], 99.95th=[641729], | 99.99th=[641729] bw ( KiB/s): min= 19, max= 190, per=24.88%, avg=121.19, stdev=31.59, samples=101 iops : min= 4, max= 47, avg=29.88, stdev= 7.93, samples=101 lat (usec) : 50=0.03%, 100=0.20%, 250=0.72%, 1000=0.13% lat (msec) : 2=0.55%, 4=8.11%, 10=18.68%, 20=41.05%, 50=29.59% lat (msec) : 100=0.91%, 750=0.03% cpu : usr=0.12%, sys=25.49%, ctx=10143, 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=180409: Sat Aug 8 09:06:32 2026 read: IOPS=29, BW=117KiB/s (120kB/s)(6052KiB/51540msec) clat (usec): min=39, max=692503, avg=18385.43, stdev=19464.54 lat (usec): min=40, max=692504, avg=18386.24, stdev=19464.58 clat percentiles (usec): | 1.00th=[ 111], 5.00th=[ 7635], 10.00th=[ 8848], 20.00th=[ 10814], | 30.00th=[ 12649], 40.00th=[ 14484], 50.00th=[ 16712], 60.00th=[ 18744], | 70.00th=[ 21103], 80.00th=[ 23987], 90.00th=[ 28443], 95.00th=[ 34341], | 99.00th=[ 50594], 99.50th=[ 54264], 99.90th=[ 67634], 99.95th=[692061], | 99.99th=[692061] bw ( KiB/s): min= 6, max= 176, per=25.21%, avg=117.22, stdev=30.17, samples=102 iops : min= 1, max= 44, avg=28.89, stdev= 7.55, samples=102 write: IOPS=30, BW=121KiB/s (124kB/s)(6236KiB/51540msec); 0 zone resets clat (usec): min=800, max=79230, avg=15083.00, stdev=11375.50 lat (usec): min=801, max=79233, avg=15084.00, stdev=11375.55 clat percentiles (usec): | 1.00th=[ 1221], 5.00th=[ 2704], 10.00th=[ 3195], 20.00th=[ 4424], | 30.00th=[ 6915], 40.00th=[ 9896], 50.00th=[12649], 60.00th=[15533], | 70.00th=[19268], 80.00th=[23725], 90.00th=[30802], 95.00th=[36439], | 99.00th=[51119], 99.50th=[57934], 99.90th=[72877], 99.95th=[79168], | 99.99th=[79168] bw ( KiB/s): min= 26, max= 200, per=24.79%, avg=120.71, stdev=32.86, samples=102 iops : min= 6, max= 50, avg=29.76, stdev= 8.23, samples=102 lat (usec) : 50=0.03%, 100=0.29%, 250=0.78%, 500=0.03%, 1000=0.23% lat (msec) : 2=0.88%, 4=7.98%, 10=17.58%, 20=41.11%, 50=29.92% lat (msec) : 100=1.14%, 750=0.03% cpu : usr=0.13%, sys=25.36%, ctx=10113, 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=465KiB/s (477kB/s), 116KiB/s-118KiB/s (119kB/s-120kB/s), io=23.4MiB (24.6MB), run=51010-51595msec WRITE: bw=487KiB/s (499kB/s), 121KiB/s-124KiB/s (124kB/s-127kB/s), io=24.6MiB (25.7MB), run=51010-51595msec fio: pid=180413, err=5/file:backend.c:481, func=full resid, error=Input/output error rand-rw: (groupid=0, jobs=1): err= 0: pid=180411: Sat Aug 8 09:06:41 2026 read: IOPS=25, BW=100KiB/s (102kB/s)(5992KiB/59866msec) clat (msec): min=2, max=655, avg=17.41, stdev=21.12 lat (msec): min=2, max=655, avg=17.41, stdev=21.12 clat percentiles (msec): | 1.00th=[ 4], 5.00th=[ 5], 10.00th=[ 6], 20.00th=[ 7], | 30.00th=[ 9], 40.00th=[ 11], 50.00th=[ 13], 60.00th=[ 16], | 70.00th=[ 20], 80.00th=[ 27], 90.00th=[ 37], 95.00th=[ 44], | 99.00th=[ 63], 99.50th=[ 67], 99.90th=[ 91], 99.95th=[ 659], | 99.99th=[ 659] bw ( KiB/s): min= 23, max= 376, per=25.84%, avg=100.52, stdev=67.01, samples=118 iops : min= 5, max= 94, avg=24.76, stdev=16.86, samples=118 write: IOPS=26, BW=105KiB/s (108kB/s)(6296KiB/59866msec); 0 zone resets clat (msec): min=4, max=120, avg=21.36, stdev=15.08 lat (msec): min=4, max=120, avg=21.36, stdev=15.08 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 7], 20.00th=[ 9], | 30.00th=[ 12], 40.00th=[ 14], 50.00th=[ 17], 60.00th=[ 22], | 70.00th=[ 27], 80.00th=[ 33], 90.00th=[ 42], 95.00th=[ 51], | 99.00th=[ 73], 99.50th=[ 80], 99.90th=[ 107], 99.95th=[ 121], | 99.99th=[ 121] bw ( KiB/s): min= 31, max= 312, per=25.97%, avg=105.68, stdev=65.28, samples=118 iops : min= 7, max= 78, avg=26.05, stdev=16.48, samples=118 lat (msec) : 4=1.33%, 10=29.69%, 20=32.71%, 50=32.32%, 100=3.81% lat (msec) : 250=0.10%, 750=0.03% cpu : usr=0.11%, sys=13.49%, ctx=6533, 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=180412: Sat Aug 8 09:06:41 2026 read: IOPS=24, BW=99.4KiB/s (102kB/s)(5940KiB/59739msec) clat (msec): min=2, max=708, avg=17.26, stdev=22.22 lat (msec): min=2, max=708, avg=17.26, stdev=22.22 clat percentiles (msec): | 1.00th=[ 4], 5.00th=[ 5], 10.00th=[ 6], 20.00th=[ 7], | 30.00th=[ 9], 40.00th=[ 11], 50.00th=[ 13], 60.00th=[ 16], | 70.00th=[ 19], 80.00th=[ 26], 90.00th=[ 35], 95.00th=[ 45], | 99.00th=[ 65], 99.50th=[ 75], 99.90th=[ 95], 99.95th=[ 709], | 99.99th=[ 709] bw ( KiB/s): min= 24, max= 352, per=25.58%, avg=99.52, stdev=63.73, samples=117 iops : min= 6, max= 88, avg=24.51, stdev=16.05, samples=117 write: IOPS=26, BW=106KiB/s (109kB/s)(6348KiB/59739msec); 0 zone resets clat (msec): min=4, max=103, avg=21.40, stdev=14.05 lat (msec): min=4, max=103, avg=21.40, stdev=14.05 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 9], | 30.00th=[ 12], 40.00th=[ 15], 50.00th=[ 18], 60.00th=[ 22], | 70.00th=[ 28], 80.00th=[ 33], 90.00th=[ 41], 95.00th=[ 48], | 99.00th=[ 67], 99.50th=[ 75], 99.90th=[ 91], 99.95th=[ 105], | 99.99th=[ 105] bw ( KiB/s): min= 39, max= 384, per=25.90%, avg=105.41, stdev=62.79, samples=117 iops : min= 9, max= 96, avg=25.98, stdev=15.84, samples=117 lat (msec) : 4=1.07%, 10=28.58%, 20=34.57%, 50=32.42%, 100=3.29% lat (msec) : 250=0.03%, 750=0.03% cpu : usr=0.09%, sys=13.61%, ctx=6641, 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=180413: Sat Aug 8 09:06:41 2026 read: IOPS=23, BW=93.1KiB/s (95.3kB/s)(5332KiB/57274msec) clat (msec): min=2, max=102, avg=18.38, stdev=13.63 lat (msec): min=2, max=102, avg=18.38, stdev=13.63 clat percentiles (msec): | 1.00th=[ 4], 5.00th=[ 5], 10.00th=[ 6], 20.00th=[ 8], | 30.00th=[ 11], 40.00th=[ 12], 50.00th=[ 14], 60.00th=[ 17], | 70.00th=[ 22], 80.00th=[ 28], 90.00th=[ 38], 95.00th=[ 46], | 99.00th=[ 65], 99.50th=[ 78], 99.90th=[ 101], 99.95th=[ 103], | 99.99th=[ 103] bw ( KiB/s): min= 24, max= 336, per=24.13%, avg=93.85, stdev=56.50, samples=113 iops : min= 6, max= 84, avg=23.08, stdev=14.23, samples=113 write: IOPS=24, BW=96.7KiB/s (98.0kB/s)(5536KiB/57274msec); 0 zone resets clat (msec): min=5, max=729, avg=23.56, stdev=23.71 lat (msec): min=5, max=729, avg=23.57, stdev=23.71 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 11], | 30.00th=[ 14], 40.00th=[ 17], 50.00th=[ 20], 60.00th=[ 24], | 70.00th=[ 29], 80.00th=[ 35], 90.00th=[ 43], 95.00th=[ 50], | 99.00th=[ 70], 99.50th=[ 78], 99.90th=[ 95], 99.95th=[ 735], | 99.99th=[ 735] bw ( KiB/s): min= 31, max= 344, per=23.95%, avg=97.47, stdev=57.49, samples=113 iops : min= 7, max= 86, avg=23.98, stdev=14.50, samples=113 lat (msec) : 4=0.66%, 10=23.84%, 20=34.36%, 50=37.16%, 100=3.86% lat (msec) : 250=0.04%, 750=0.04% cpu : usr=0.09%, sys=13.14%, ctx=5674, 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=1334,1384,0,0 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=180414: Sat Aug 8 09:06:41 2026 read: IOPS=25, BW=101KiB/s (104kB/s)(6052KiB/59668msec) clat (usec): min=2551, max=84163, avg=16856.02, stdev=12758.48 lat (usec): min=2552, max=84164, avg=16857.97, stdev=12758.17 clat percentiles (usec): | 1.00th=[ 3523], 5.00th=[ 4424], 10.00th=[ 5145], 20.00th=[ 6587], | 30.00th=[ 9110], 40.00th=[10945], 50.00th=[12518], 60.00th=[15139], | 70.00th=[18744], 80.00th=[25297], 90.00th=[35914], 95.00th=[43779], | 99.00th=[59507], 99.50th=[67634], 99.90th=[81265], 99.95th=[84411], | 99.99th=[84411] bw ( KiB/s): min= 7, max= 352, per=25.97%, avg=101.03, stdev=62.45, samples=117 iops : min= 1, max= 88, avg=24.89, stdev=15.74, samples=117 write: IOPS=26, BW=105KiB/s (107kB/s)(6236KiB/59668msec); 0 zone resets clat (msec): min=4, max=727, avg=21.82, stdev=23.18 lat (msec): min=4, max=727, avg=21.82, stdev=23.18 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 10], | 30.00th=[ 12], 40.00th=[ 14], 50.00th=[ 17], 60.00th=[ 22], | 70.00th=[ 26], 80.00th=[ 33], 90.00th=[ 42], 95.00th=[ 49], | 99.00th=[ 77], 99.50th=[ 88], 99.90th=[ 121], 99.95th=[ 726], | 99.99th=[ 726] bw ( KiB/s): min= 48, max= 360, per=25.63%, avg=104.32, stdev=63.01, samples=117 iops : min= 12, max= 90, avg=25.71, stdev=15.87, samples=117 lat (msec) : 4=1.60%, 10=26.99%, 20=36.20%, 50=31.51%, 100=3.61% lat (msec) : 250=0.07%, 750=0.03% cpu : usr=0.07%, sys=13.67%, ctx=6743, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=389KiB/s (399kB/s), 93.1KiB/s-101KiB/s (95.3kB/s-104kB/s), io=22.8MiB (23.9MB), run=57274-59866msec WRITE: bw=408KiB/s (418kB/s), 96.7KiB/s-106KiB/s (98.0kB/s-109kB/s), io=23.8MiB (25.0MB), run=57274-59866msec 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=180436: Sat Aug 8 09:07:00 2026 read: IOPS=25, BW=410KiB/s (420kB/s)(5920KiB/14425msec) clat (usec): min=68, max=63752, avg=19474.92, stdev=10925.66 lat (usec): min=69, max=63753, avg=19475.74, stdev=10925.75 clat percentiles (usec): | 1.00th=[ 88], 5.00th=[ 131], 10.00th=[ 9110], 20.00th=[11731], | 30.00th=[13566], 40.00th=[15533], 50.00th=[17433], 60.00th=[20055], | 70.00th=[22938], 80.00th=[26608], 90.00th=[32900], 95.00th=[43254], | 99.00th=[51643], 99.50th=[55837], 99.90th=[63701], 99.95th=[63701], | 99.99th=[63701] bw ( KiB/s): min= 191, max= 670, per=24.38%, avg=404.64, stdev=106.20, samples=28 iops : min= 11, max= 41, avg=24.82, stdev= 6.67, samples=28 write: IOPS=27, BW=441KiB/s (452kB/s)(6368KiB/14425msec); 0 zone resets clat (usec): min=1056, max=81648, avg=18027.44, stdev=12467.29 lat (usec): min=1057, max=81649, avg=18028.75, stdev=12467.35 clat percentiles (usec): | 1.00th=[ 1614], 5.00th=[ 4178], 10.00th=[ 4883], 20.00th=[ 6456], | 30.00th=[10552], 40.00th=[12649], 50.00th=[14877], 60.00th=[18482], | 70.00th=[22152], 80.00th=[27657], 90.00th=[34866], 95.00th=[41157], | 99.00th=[61080], 99.50th=[77071], 99.90th=[81265], 99.95th=[81265], | 99.99th=[81265] bw ( KiB/s): min= 287, max= 574, per=25.20%, avg=440.00, stdev=87.12, samples=28 iops : min= 17, max= 35, avg=27.04, stdev= 5.43, samples=28 lat (usec) : 100=0.78%, 250=2.47% lat (msec) : 2=0.78%, 4=0.65%, 10=15.89%, 20=41.54%, 50=36.59% lat (msec) : 100=1.30% cpu : usr=0.07%, sys=27.36%, ctx=3076, 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=180438: Sat Aug 8 09:07:00 2026 read: IOPS=25, BW=403KiB/s (413kB/s)(5744KiB/14241msec) clat (usec): min=42, max=67785, avg=20253.00, stdev=10627.89 lat (usec): min=43, max=67786, avg=20255.77, stdev=10630.49 clat percentiles (usec): | 1.00th=[ 87], 5.00th=[ 184], 10.00th=[ 9896], 20.00th=[12125], | 30.00th=[15401], 40.00th=[17433], 50.00th=[19530], 60.00th=[21365], | 70.00th=[23725], 80.00th=[26870], 90.00th=[31589], 95.00th=[41681], | 99.00th=[54789], 99.50th=[63701], 99.90th=[67634], 99.95th=[67634], | 99.99th=[67634] bw ( KiB/s): min= 224, max= 638, per=24.25%, avg=402.54, stdev=118.30, samples=28 iops : min= 14, max= 39, avg=24.68, stdev= 7.37, samples=28 write: IOPS=28, BW=460KiB/s (471kB/s)(6544KiB/14241msec); 0 zone resets clat (usec): min=1344, max=69651, avg=16841.20, stdev=11524.36 lat (usec): min=1345, max=69652, avg=16842.78, stdev=11524.30 clat percentiles (usec): | 1.00th=[ 3163], 5.00th=[ 4228], 10.00th=[ 4817], 20.00th=[ 6390], | 30.00th=[ 9634], 40.00th=[11469], 50.00th=[13698], 60.00th=[16450], | 70.00th=[20841], 80.00th=[25822], 90.00th=[34341], 95.00th=[39584], | 99.00th=[50594], 99.50th=[57934], 99.90th=[69731], 99.95th=[69731], | 99.99th=[69731] bw ( KiB/s): min= 223, max= 698, per=26.22%, avg=457.82, stdev=122.74, samples=28 iops : min= 13, max= 43, avg=28.14, stdev= 7.66, samples=28 lat (usec) : 50=0.13%, 100=0.52%, 250=1.95%, 500=0.13% lat (msec) : 2=0.13%, 4=1.69%, 10=16.67%, 20=40.10%, 50=37.24% lat (msec) : 100=1.43% cpu : usr=0.10%, sys=27.71%, ctx=2954, 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=180440: Sat Aug 8 09:07:00 2026 read: IOPS=27, BW=438KiB/s (449kB/s)(6256KiB/14274msec) clat (usec): min=43, max=63290, avg=19340.49, stdev=9784.17 lat (usec): min=44, max=63291, avg=19341.30, stdev=9784.21 clat percentiles (usec): | 1.00th=[ 83], 5.00th=[ 6128], 10.00th=[ 9896], 20.00th=[12387], | 30.00th=[14222], 40.00th=[15926], 50.00th=[17957], 60.00th=[20055], | 70.00th=[22414], 80.00th=[24773], 90.00th=[31065], 95.00th=[38011], | 99.00th=[53216], 99.50th=[57934], 99.90th=[63177], 99.95th=[63177], | 99.99th=[63177] bw ( KiB/s): min= 191, max= 736, per=26.50%, avg=439.93, stdev=125.60, samples=28 iops : min= 11, max= 46, avg=27.04, stdev= 7.89, samples=28 write: IOPS=26, BW=423KiB/s (433kB/s)(6032KiB/14274msec); 0 zone resets clat (usec): min=1845, max=72754, avg=17725.53, stdev=11552.38 lat (usec): min=1847, max=72757, avg=17726.90, stdev=11552.42 clat percentiles (usec): | 1.00th=[ 2507], 5.00th=[ 4228], 10.00th=[ 4817], 20.00th=[ 7046], | 30.00th=[10552], 40.00th=[13304], 50.00th=[15401], 60.00th=[18482], | 70.00th=[21627], 80.00th=[26608], 90.00th=[33817], 95.00th=[40109], | 99.00th=[51119], 99.50th=[68682], 99.90th=[72877], 99.95th=[72877], | 99.99th=[72877] bw ( KiB/s): min= 223, max= 638, per=23.90%, avg=417.21, stdev=113.48, samples=28 iops : min= 13, max= 39, avg=25.61, stdev= 7.01, samples=28 lat (usec) : 50=0.13%, 100=1.04%, 250=1.17% lat (msec) : 2=0.39%, 4=1.82%, 10=15.23%, 20=41.54%, 50=37.63% lat (msec) : 100=1.04% cpu : usr=0.06%, sys=27.58%, ctx=3108, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180442: Sat Aug 8 09:07:00 2026 read: IOPS=26, BW=427KiB/s (438kB/s)(6032KiB/14116msec) clat (usec): min=45, max=86666, avg=19751.80, stdev=11271.37 lat (usec): min=45, max=86667, avg=19752.66, stdev=11271.33 clat percentiles (usec): | 1.00th=[ 87], 5.00th=[ 128], 10.00th=[ 8979], 20.00th=[12256], | 30.00th=[14222], 40.00th=[16188], 50.00th=[17957], 60.00th=[20317], | 70.00th=[23200], 80.00th=[27919], 90.00th=[32637], 95.00th=[38536], | 99.00th=[57410], 99.50th=[65274], 99.90th=[86508], 99.95th=[86508], | 99.99th=[86508] bw ( KiB/s): min= 223, max= 576, per=25.55%, avg=424.11, stdev=98.04, samples=28 iops : min= 13, max= 36, avg=26.04, stdev= 6.14, samples=28 write: IOPS=27, BW=443KiB/s (454kB/s)(6256KiB/14116msec); 0 zone resets clat (usec): min=1589, max=93579, avg=16870.51, stdev=11627.71 lat (usec): min=1590, max=93580, avg=16871.90, stdev=11627.75 clat percentiles (usec): | 1.00th=[ 2089], 5.00th=[ 4490], 10.00th=[ 4883], 20.00th=[ 6325], | 30.00th=[ 9503], 40.00th=[11994], 50.00th=[14484], 60.00th=[17433], | 70.00th=[20579], 80.00th=[25297], 90.00th=[31065], 95.00th=[37487], | 99.00th=[52167], 99.50th=[87557], 99.90th=[93848], 99.95th=[93848], | 99.99th=[93848] bw ( KiB/s): min= 254, max= 640, per=25.33%, avg=442.18, stdev=104.85, samples=28 iops : min= 15, max= 40, avg=27.18, stdev= 6.57, samples=28 lat (usec) : 50=0.13%, 100=0.65%, 250=2.60%, 500=0.13% lat (msec) : 2=0.39%, 4=1.30%, 10=17.32%, 20=40.89%, 50=35.16% lat (msec) : 100=1.43% cpu : usr=0.06%, sys=28.03%, ctx=2991, 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=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=1660KiB/s (1700kB/s), 403KiB/s-438KiB/s (413kB/s-449kB/s), io=23.4MiB (24.5MB), run=14116-14425msec WRITE: bw=1747KiB/s (1789kB/s), 423KiB/s-460KiB/s (433kB/s-471kB/s), io=24.6MiB (25.8MB), run=14116-14425msec rand-rw: (groupid=0, jobs=1): err= 0: pid=180437: Sat Aug 8 09:07:02 2026 read: IOPS=22, BW=358KiB/s (367kB/s)(5920KiB/16514msec) clat (usec): min=3265, max=61996, avg=17708.98, stdev=13135.48 lat (usec): min=3266, max=61997, avg=17710.55, stdev=13134.62 clat percentiles (usec): | 1.00th=[ 3654], 5.00th=[ 5080], 10.00th=[ 6325], 20.00th=[ 7308], | 30.00th=[ 8848], 40.00th=[10683], 50.00th=[13173], 60.00th=[16057], | 70.00th=[19268], 80.00th=[26608], 90.00th=[39060], 95.00th=[48497], | 99.00th=[59507], 99.50th=[60556], 99.90th=[62129], 99.95th=[62129], | 99.99th=[62129] bw ( KiB/s): min= 64, max= 864, per=23.41%, avg=339.38, stdev=186.62, samples=32 iops : min= 4, max= 54, avg=20.72, stdev=11.71, samples=32 write: IOPS=24, BW=386KiB/s (395kB/s)(6368KiB/16514msec); 0 zone resets clat (msec): min=5, max=103, avg=24.81, stdev=16.04 lat (msec): min=5, max=103, avg=24.81, stdev=16.04 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 12], | 30.00th=[ 14], 40.00th=[ 16], 50.00th=[ 21], 60.00th=[ 25], | 70.00th=[ 31], 80.00th=[ 37], 90.00th=[ 47], 95.00th=[ 56], | 99.00th=[ 84], 99.50th=[ 89], 99.90th=[ 104], 99.95th=[ 104], | 99.99th=[ 104] bw ( KiB/s): min= 159, max= 960, per=24.24%, avg=369.66, stdev=182.93, samples=32 iops : min= 9, max= 60, avg=22.62, stdev=11.53, samples=32 lat (msec) : 4=1.04%, 10=22.14%, 20=37.37%, 50=33.72%, 100=5.60% lat (msec) : 250=0.13% cpu : usr=0.08%, sys=13.25%, ctx=1850, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180439: Sat Aug 8 09:07:02 2026 read: IOPS=21, BW=351KiB/s (360kB/s)(5744KiB/16344msec) clat (usec): min=3782, max=71390, avg=18281.60, stdev=12829.47 lat (usec): min=3783, max=71391, avg=18282.41, stdev=12829.45 clat percentiles (usec): | 1.00th=[ 4817], 5.00th=[ 5800], 10.00th=[ 6587], 20.00th=[ 7767], | 30.00th=[10159], 40.00th=[12256], 50.00th=[14091], 60.00th=[16319], | 70.00th=[20317], 80.00th=[26870], 90.00th=[38011], 95.00th=[45876], | 99.00th=[62653], 99.50th=[66847], 99.90th=[71828], 99.95th=[71828], | 99.99th=[71828] bw ( KiB/s): min= 148, max= 928, per=23.98%, avg=347.75, stdev=164.26, samples=32 iops : min= 9, max= 58, avg=21.25, stdev=10.34, samples=32 write: IOPS=25, BW=400KiB/s (410kB/s)(6544KiB/16344msec); 0 zone resets clat (msec): min=5, max=132, avg=23.76, stdev=15.22 lat (msec): min=5, max=132, avg=23.76, stdev=15.22 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 12], | 30.00th=[ 14], 40.00th=[ 16], 50.00th=[ 20], 60.00th=[ 24], | 70.00th=[ 29], 80.00th=[ 34], 90.00th=[ 45], 95.00th=[ 54], | 99.00th=[ 68], 99.50th=[ 85], 99.90th=[ 133], 99.95th=[ 133], | 99.99th=[ 133] bw ( KiB/s): min= 160, max= 992, per=25.52%, avg=389.25, stdev=204.23, samples=32 iops : min= 10, max= 62, avg=23.84, stdev=12.81, samples=32 lat (msec) : 4=0.13%, 10=18.23%, 20=42.06%, 50=34.38%, 100=5.08% lat (msec) : 250=0.13% cpu : usr=0.12%, sys=13.70%, ctx=1756, 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=180441: Sat Aug 8 09:07:02 2026 read: IOPS=23, BW=380KiB/s (389kB/s)(6256KiB/16449msec) clat (usec): min=3618, max=81776, avg=18438.02, stdev=13522.31 lat (usec): min=3619, max=81777, avg=18438.97, stdev=13522.33 clat percentiles (usec): | 1.00th=[ 4555], 5.00th=[ 5604], 10.00th=[ 6128], 20.00th=[ 7701], | 30.00th=[ 9503], 40.00th=[11600], 50.00th=[13960], 60.00th=[16909], | 70.00th=[21103], 80.00th=[27919], 90.00th=[36439], 95.00th=[45351], | 99.00th=[67634], 99.50th=[80217], 99.90th=[81265], 99.95th=[81265], | 99.99th=[81265] bw ( KiB/s): min= 95, max= 1344, per=25.76%, avg=373.47, stdev=236.07, samples=32 iops : min= 5, max= 84, avg=22.84, stdev=14.82, samples=32 write: IOPS=22, BW=367KiB/s (376kB/s)(6032KiB/16449msec); 0 zone resets clat (usec): min=5726, max=88315, avg=24427.33, stdev=14579.16 lat (usec): min=5727, max=88316, avg=24429.34, stdev=14579.12 clat percentiles (usec): | 1.00th=[ 6849], 5.00th=[ 8586], 10.00th=[ 9896], 20.00th=[12125], | 30.00th=[14091], 40.00th=[16909], 50.00th=[20841], 60.00th=[25560], | 70.00th=[29230], 80.00th=[35390], 90.00th=[43779], 95.00th=[50070], | 99.00th=[72877], 99.50th=[87557], 99.90th=[88605], 99.95th=[88605], | 99.99th=[88605] bw ( KiB/s): min= 159, max= 928, per=22.92%, avg=349.53, stdev=162.15, samples=32 iops : min= 9, max= 58, avg=21.34, stdev=10.28, samples=32 lat (msec) : 4=0.26%, 10=21.35%, 20=36.33%, 50=37.76%, 100=4.30% cpu : usr=0.07%, sys=13.55%, ctx=1732, 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=180443: Sat Aug 8 09:07:02 2026 read: IOPS=23, BW=369KiB/s (378kB/s)(6032KiB/16361msec) clat (usec): min=3954, max=78691, avg=18238.70, stdev=13523.58 lat (usec): min=3955, max=78691, avg=18239.38, stdev=13523.57 clat percentiles (usec): | 1.00th=[ 4178], 5.00th=[ 5669], 10.00th=[ 6521], 20.00th=[ 7832], | 30.00th=[ 9765], 40.00th=[11338], 50.00th=[13435], 60.00th=[16319], | 70.00th=[20317], 80.00th=[26870], 90.00th=[38536], 95.00th=[44303], | 99.00th=[71828], 99.50th=[78119], 99.90th=[79168], 99.95th=[79168], | 99.99th=[79168] bw ( KiB/s): min= 127, max= 960, per=24.81%, avg=359.69, stdev=192.14, samples=32 iops : min= 7, max= 60, avg=22.00, stdev=12.08, samples=32 write: IOPS=23, BW=382KiB/s (392kB/s)(6256KiB/16361msec); 0 zone resets clat (usec): min=7024, max=88070, avg=24018.28, stdev=14563.17 lat (usec): min=7026, max=88072, avg=24020.17, stdev=14563.00 clat percentiles (usec): | 1.00th=[ 7767], 5.00th=[ 9372], 10.00th=[10552], 20.00th=[11994], | 30.00th=[13698], 40.00th=[15664], 50.00th=[19006], 60.00th=[23987], | 70.00th=[29492], 80.00th=[34866], 90.00th=[42730], 95.00th=[52167], | 99.00th=[76022], 99.50th=[84411], 99.90th=[87557], 99.95th=[87557], | 99.99th=[87557] bw ( KiB/s): min= 223, max= 864, per=24.69%, avg=376.53, stdev=174.10, samples=32 iops : min= 13, max= 54, avg=23.03, stdev=11.01, samples=32 lat (msec) : 4=0.13%, 10=19.66%, 20=40.49%, 50=35.81%, 100=3.91% cpu : usr=0.12%, sys=13.46%, ctx=1793, 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=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=1450KiB/s (1485kB/s), 351KiB/s-380KiB/s (360kB/s-389kB/s), io=23.4MiB (24.5MB), run=16344-16514msec WRITE: bw=1526KiB/s (1563kB/s), 367KiB/s-400KiB/s (376kB/s-410kB/s), io=24.6MiB (25.8MB), run=16344-16514msec 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=180451: Sat Aug 8 09:07:11 2026 read: IOPS=4, BW=4127KiB/s (4226kB/s)(7168KiB/1737msec) clat (usec): min=492, max=155443, avg=110980.54, stdev=50880.33 lat (usec): min=493, max=155444, avg=110981.79, stdev=50880.32 clat percentiles (usec): | 1.00th=[ 494], 5.00th=[ 494], 10.00th=[ 494], 20.00th=[113771], | 30.00th=[116917], 40.00th=[116917], 50.00th=[120062], 60.00th=[128451], | 70.00th=[128451], 80.00th=[141558], 90.00th=[156238], 95.00th=[156238], | 99.00th=[156238], 99.50th=[156238], 99.90th=[156238], 99.95th=[156238], | 99.99th=[156238] bw ( KiB/s): min= 2048, max= 5206, per=52.15%, avg=3772.33, stdev=1598.94, samples=3 iops : min= 2, max= 5, avg= 3.33, stdev= 1.53, samples=3 write: IOPS=2, BW=2948KiB/s (3018kB/s)(5120KiB/1737msec); 0 zone resets clat (msec): min=121, max=301, avg=187.19, stdev=71.06 lat (msec): min=121, max=301, avg=187.24, stdev=71.05 clat percentiles (msec): | 1.00th=[ 122], 5.00th=[ 122], 10.00th=[ 122], 20.00th=[ 122], | 30.00th=[ 136], 40.00th=[ 136], 50.00th=[ 184], 60.00th=[ 184], | 70.00th=[ 194], 80.00th=[ 194], 90.00th=[ 300], 95.00th=[ 300], | 99.00th=[ 300], 99.50th=[ 300], 99.90th=[ 300], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 1735, max= 6144, per=38.90%, avg=3939.50, stdev=3117.63, samples=2 iops : min= 1, max= 6, avg= 3.50, stdev= 3.54, samples=2 lat (usec) : 500=8.33% lat (msec) : 250=83.33%, 500=8.33% cpu : usr=0.00%, sys=63.31%, ctx=863, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180452: Sat Aug 8 09:07:11 2026 read: IOPS=0, BW=723KiB/s (741kB/s)(2048KiB/2831msec) clat (usec): min=511, max=164706, avg=82609.00, stdev=116104.03 lat (usec): min=512, max=164709, avg=82611.09, stdev=116105.12 clat percentiles (usec): | 1.00th=[ 510], 5.00th=[ 510], 10.00th=[ 510], 20.00th=[ 510], | 30.00th=[ 510], 40.00th=[ 510], 50.00th=[ 510], 60.00th=[164627], | 70.00th=[164627], 80.00th=[164627], 90.00th=[164627], 95.00th=[164627], | 99.00th=[164627], 99.50th=[164627], 99.90th=[164627], 99.95th=[164627], | 99.99th=[164627] bw ( KiB/s): min= 1732, max= 2048, per=26.13%, avg=1890.00, stdev=223.45, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 write: IOPS=3, BW=3617KiB/s (3704kB/s)(10.0MiB/2831msec); 0 zone resets clat (msec): min=129, max=792, avg=262.75, stdev=212.24 lat (msec): min=129, max=792, avg=262.81, stdev=212.24 clat percentiles (msec): | 1.00th=[ 130], 5.00th=[ 130], 10.00th=[ 130], 20.00th=[ 133], | 30.00th=[ 140], 40.00th=[ 142], 50.00th=[ 148], 60.00th=[ 157], | 70.00th=[ 207], 80.00th=[ 380], 90.00th=[ 401], 95.00th=[ 793], | 99.00th=[ 793], 99.50th=[ 793], 99.90th=[ 793], 99.95th=[ 793], | 99.99th=[ 793] bw ( KiB/s): min= 4096, max= 8126, per=53.71%, avg=5439.33, stdev=2326.72, samples=3 iops : min= 4, max= 7, avg= 5.00, stdev= 1.73, samples=3 lat (usec) : 750=8.33% lat (msec) : 250=66.67%, 500=16.67%, 1000=8.33% cpu : usr=0.00%, sys=47.88%, ctx=428, 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=180453: Sat Aug 8 09:07:11 2026 read: IOPS=3, BW=3454KiB/s (3537kB/s)(6144KiB/1779msec) clat (usec): min=464, max=191282, avg=59510.15, stdev=72708.46 lat (usec): min=465, max=191282, avg=59511.06, stdev=72708.17 clat percentiles (usec): | 1.00th=[ 465], 5.00th=[ 465], 10.00th=[ 465], 20.00th=[ 562], | 30.00th=[ 562], 40.00th=[ 20317], 50.00th=[ 20317], 60.00th=[ 61080], | 70.00th=[ 83362], 80.00th=[ 83362], 90.00th=[191890], 95.00th=[191890], | 99.00th=[191890], 99.50th=[191890], 99.90th=[191890], 99.95th=[191890], | 99.99th=[191890] bw ( KiB/s): min= 4096, max= 6095, per=70.44%, avg=5095.50, stdev=1413.51, samples=2 iops : min= 4, max= 5, avg= 4.50, stdev= 0.71, samples=2 write: IOPS=3, BW=3454KiB/s (3537kB/s)(6144KiB/1779msec); 0 zone resets clat (msec): min=118, max=353, avg=231.64, stdev=83.70 lat (msec): min=118, max=353, avg=231.70, stdev=83.72 clat percentiles (msec): | 1.00th=[ 120], 5.00th=[ 120], 10.00th=[ 120], 20.00th=[ 157], | 30.00th=[ 157], 40.00th=[ 236], 50.00th=[ 236], 60.00th=[ 262], | 70.00th=[ 264], 80.00th=[ 264], 90.00th=[ 355], 95.00th=[ 355], | 99.00th=[ 355], 99.50th=[ 355], 99.90th=[ 355], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 2048, max= 4063, per=31.50%, avg=3190.00, stdev=1034.08, samples=3 iops : min= 2, max= 3, avg= 2.67, stdev= 0.58, samples=3 lat (usec) : 500=8.33%, 750=8.33% lat (msec) : 50=8.33%, 100=16.67%, 250=33.33%, 500=25.00% cpu : usr=0.06%, sys=50.45%, ctx=382, 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=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=180454: Sat Aug 8 09:07:11 2026 read: IOPS=2, BW=2192KiB/s (2244kB/s)(5120KiB/2336msec) clat (usec): min=533, max=287607, avg=140125.08, stdev=119841.17 lat (usec): min=535, max=287608, avg=140126.31, stdev=119841.09 clat percentiles (usec): | 1.00th=[ 537], 5.00th=[ 537], 10.00th=[ 537], 20.00th=[ 537], | 30.00th=[ 45876], 40.00th=[ 45876], 50.00th=[141558], 60.00th=[141558], | 70.00th=[225444], 80.00th=[225444], 90.00th=[287310], 95.00th=[287310], | 99.00th=[287310], 99.50th=[287310], 99.90th=[287310], 99.95th=[287310], | 99.99th=[287310] bw ( KiB/s): min= 8192, max= 8192, per=100.00%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 8, max= 8, avg= 8.00, stdev= 0.00, samples=1 write: IOPS=2, BW=3068KiB/s (3142kB/s)(7168KiB/2336msec); 0 zone resets clat (msec): min=118, max=477, avg=232.26, stdev=137.22 lat (msec): min=118, max=477, avg=232.31, stdev=137.22 clat percentiles (msec): | 1.00th=[ 118], 5.00th=[ 118], 10.00th=[ 118], 20.00th=[ 142], | 30.00th=[ 150], 40.00th=[ 150], 50.00th=[ 176], 60.00th=[ 190], | 70.00th=[ 190], 80.00th=[ 372], 90.00th=[ 477], 95.00th=[ 477], | 99.00th=[ 477], 99.50th=[ 477], 99.90th=[ 477], 99.95th=[ 477], | 99.99th=[ 477] bw ( KiB/s): min= 1735, max= 6095, per=39.25%, avg=3975.33, stdev=2182.50, samples=3 iops : min= 1, max= 5, avg= 3.33, stdev= 2.08, samples=3 lat (usec) : 750=8.33% lat (msec) : 50=8.33%, 250=58.33%, 500=25.00% cpu : usr=0.04%, sys=49.98%, ctx=414, 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=7234KiB/s (7408kB/s), 723KiB/s-4127KiB/s (741kB/s-4226kB/s), io=20.0MiB (20.0MB), run=1737-2831msec WRITE: bw=9.89MiB/s (10.4MB/s), 2948KiB/s-3617KiB/s (3018kB/s-3704kB/s), io=28.0MiB (29.4MB), run=1737-2831msec rand-rw: (groupid=0, jobs=1): err= 0: pid=180456: Sat Aug 8 09:07:11 2026 read: IOPS=2, BW=2491KiB/s (2551kB/s)(7168KiB/2877msec) clat (msec): min=38, max=923, avg=248.08, stdev=313.39 lat (msec): min=38, max=923, avg=248.08, stdev=313.39 clat percentiles (msec): | 1.00th=[ 39], 5.00th=[ 39], 10.00th=[ 39], 20.00th=[ 50], | 30.00th=[ 55], 40.00th=[ 55], 50.00th=[ 142], 60.00th=[ 253], | 70.00th=[ 253], 80.00th=[ 279], 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= 1780, max= 4096, per=35.82%, avg=2485.75, stdev=1080.20, samples=4 iops : min= 1, max= 4, avg= 2.00, stdev= 1.41, samples=4 write: IOPS=1, BW=1780KiB/s (1822kB/s)(5120KiB/2877msec); 0 zone resets clat (msec): min=49, max=344, avg=174.72, stdev=115.07 lat (msec): min=49, max=344, avg=174.79, stdev=115.06 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 50], 10.00th=[ 50], 20.00th=[ 50], | 30.00th=[ 100], 40.00th=[ 100], 50.00th=[ 157], 60.00th=[ 157], | 70.00th=[ 226], 80.00th=[ 226], 90.00th=[ 347], 95.00th=[ 347], | 99.00th=[ 347], 99.50th=[ 347], 99.90th=[ 347], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 2019, max= 4096, per=31.47%, avg=3057.50, stdev=1468.66, samples=2 iops : min= 1, max= 4, avg= 2.50, stdev= 2.12, samples=2 lat (msec) : 50=25.00%, 100=16.67%, 250=25.00%, 500=25.00%, 1000=8.33% cpu : usr=0.00%, sys=18.92%, ctx=121, 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=180457: Sat Aug 8 09:07:11 2026 read: IOPS=0, BW=694KiB/s (711kB/s)(2048KiB/2951msec) clat (msec): min=115, max=341, avg=228.50, stdev=159.12 lat (msec): min=115, max=341, avg=228.50, stdev=159.12 clat percentiles (msec): | 1.00th=[ 116], 5.00th=[ 116], 10.00th=[ 116], 20.00th=[ 116], | 30.00th=[ 116], 40.00th=[ 116], 50.00th=[ 116], 60.00th=[ 342], | 70.00th=[ 342], 80.00th=[ 342], 90.00th=[ 342], 95.00th=[ 342], | 99.00th=[ 342], 99.50th=[ 342], 99.90th=[ 342], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 1718, max= 2048, per=27.13%, avg=1883.00, stdev=233.35, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 write: IOPS=3, BW=3470KiB/s (3553kB/s)(10.0MiB/2951msec); 0 zone resets clat (msec): min=75, max=685, avg=247.24, stdev=186.68 lat (msec): min=75, max=685, avg=247.30, stdev=186.69 clat percentiles (msec): | 1.00th=[ 77], 5.00th=[ 77], 10.00th=[ 77], 20.00th=[ 102], | 30.00th=[ 131], 40.00th=[ 131], 50.00th=[ 159], 60.00th=[ 226], | 70.00th=[ 264], 80.00th=[ 271], 90.00th=[ 435], 95.00th=[ 684], | 99.00th=[ 684], 99.50th=[ 684], 99.90th=[ 684], 99.95th=[ 684], | 99.99th=[ 684] bw ( KiB/s): min= 4096, max= 6144, per=49.18%, avg=4778.67, stdev=1182.41, samples=3 iops : min= 4, max= 6, avg= 4.67, stdev= 1.15, samples=3 lat (msec) : 100=8.33%, 250=50.00%, 500=33.33%, 750=8.33% cpu : usr=0.03%, sys=23.97%, ctx=180, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180458: Sat Aug 8 09:07:11 2026 read: IOPS=2, BW=2291KiB/s (2346kB/s)(6144KiB/2682msec) clat (msec): min=48, max=257, avg=118.52, stdev=93.36 lat (msec): min=48, max=257, avg=118.52, stdev=93.36 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 50], 10.00th=[ 50], 20.00th=[ 52], | 30.00th=[ 52], 40.00th=[ 53], 50.00th=[ 53], 60.00th=[ 85], | 70.00th=[ 218], 80.00th=[ 218], 90.00th=[ 257], 95.00th=[ 257], | 99.00th=[ 257], 99.50th=[ 257], 99.90th=[ 257], 99.95th=[ 257], | 99.99th=[ 257] bw ( KiB/s): min= 4096, max= 6059, per=73.16%, avg=5077.50, stdev=1388.05, samples=2 iops : min= 4, max= 5, avg= 4.50, stdev= 0.71, samples=2 write: IOPS=2, BW=2291KiB/s (2346kB/s)(6144KiB/2682msec); 0 zone resets clat (msec): min=58, max=956, avg=289.74, stdev=335.24 lat (msec): min=58, max=956, avg=289.80, stdev=335.23 clat percentiles (msec): | 1.00th=[ 59], 5.00th=[ 59], 10.00th=[ 59], 20.00th=[ 128], | 30.00th=[ 128], 40.00th=[ 153], 50.00th=[ 153], 60.00th=[ 155], | 70.00th=[ 288], 80.00th=[ 288], 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= 1768, max= 4039, per=25.48%, avg=2475.75, stdev=1050.49, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 0.82, samples=4 lat (msec) : 50=8.33%, 100=33.33%, 250=33.33%, 500=16.67%, 1000=8.33% cpu : usr=0.00%, sys=15.89%, ctx=401, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180459: Sat Aug 8 09:07:11 2026 read: IOPS=1, BW=1749KiB/s (1791kB/s)(5120KiB/2928msec) clat (msec): min=37, max=152, avg=70.54, stdev=46.60 lat (msec): min=37, max=152, avg=70.54, stdev=46.60 clat percentiles (msec): | 1.00th=[ 38], 5.00th=[ 38], 10.00th=[ 38], 20.00th=[ 38], | 30.00th=[ 53], 40.00th=[ 53], 50.00th=[ 54], 60.00th=[ 54], | 70.00th=[ 57], 80.00th=[ 57], 90.00th=[ 153], 95.00th=[ 153], | 99.00th=[ 153], 99.50th=[ 153], 99.90th=[ 153], 99.95th=[ 153], | 99.99th=[ 153] bw ( KiB/s): min= 8192, max= 8192, per=100.00%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 8, max= 8, avg= 8.00, stdev= 0.00, samples=1 write: IOPS=2, BW=2448KiB/s (2507kB/s)(7168KiB/2928msec); 0 zone resets clat (msec): min=62, max=1011, avg=333.84, stdev=319.66 lat (msec): min=62, max=1011, avg=333.91, stdev=319.65 clat percentiles (msec): | 1.00th=[ 63], 5.00th=[ 63], 10.00th=[ 63], 20.00th=[ 65], | 30.00th=[ 259], 40.00th=[ 259], 50.00th=[ 288], 60.00th=[ 321], | 70.00th=[ 321], 80.00th=[ 330], 90.00th=[ 1011], 95.00th=[ 1011], | 99.00th=[ 1011], 99.50th=[ 1011], 99.90th=[ 1011], 99.95th=[ 1011], | 99.99th=[ 1011] bw ( KiB/s): min= 1756, max= 2048, per=20.25%, avg=1967.75, stdev=141.83, samples=4 iops : min= 1, max= 2, avg= 1.50, stdev= 0.58, samples=4 lat (msec) : 50=8.33%, 100=41.67%, 250=8.33%, 500=33.33%, 2000=8.33% cpu : usr=0.03%, sys=12.84%, ctx=101, 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=6940KiB/s (7107kB/s), 694KiB/s-2491KiB/s (711kB/s-2551kB/s), io=20.0MiB (20.0MB), run=2682-2951msec WRITE: bw=9716KiB/s (9949kB/s), 1780KiB/s-3470KiB/s (1822kB/s-3553kB/s), io=28.0MiB (29.4MB), run=2682-2951msec 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=180464: Sat Aug 8 09:07:18 2026 read: IOPS=1, BW=6770KiB/s (6933kB/s)(12.0MiB/1815msec) clat (msec): min=129, max=1123, avg=576.01, stdev=504.77 lat (msec): min=129, max=1123, avg=576.02, stdev=504.77 clat percentiles (msec): | 1.00th=[ 130], 5.00th=[ 130], 10.00th=[ 130], 20.00th=[ 130], | 30.00th=[ 130], 40.00th=[ 477], 50.00th=[ 477], 60.00th=[ 477], | 70.00th=[ 1116], 80.00th=[ 1116], 90.00th=[ 1116], 95.00th=[ 1116], | 99.00th=[ 1116], 99.50th=[ 1116], 99.90th=[ 1116], 99.95th=[ 1116], | 99.99th=[ 1116] bw ( KiB/s): min= 8192, max= 8192, per=96.15%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 500=33.33%, 2000=33.33% cpu : usr=0.00%, sys=14.22%, ctx=56, 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=180466: Sat Aug 8 09:07:18 2026 read: IOPS=0, BW=2130KiB/s (2181kB/s)(4096KiB/1923msec) clat (nsec): min=697391k, max=697391k, avg=697390865.00, stdev= 0.00 lat (nsec): min=697393k, max=697393k, avg=697393017.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 701], 5.00th=[ 701], 10.00th=[ 701], 20.00th=[ 701], | 30.00th=[ 701], 40.00th=[ 701], 50.00th=[ 701], 60.00th=[ 701], | 70.00th=[ 701], 80.00th=[ 701], 90.00th=[ 701], 95.00th=[ 701], | 99.00th=[ 701], 99.50th=[ 701], 99.90th=[ 701], 99.95th=[ 701], | 99.99th=[ 701] bw ( KiB/s): min= 8192, max= 8192, per=96.15%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 write: IOPS=1, BW=4260KiB/s (4362kB/s)(8192KiB/1923msec); 0 zone resets clat (msec): min=581, max=611, avg=596.28, stdev=21.27 lat (msec): min=581, max=611, avg=596.56, stdev=21.45 clat percentiles (msec): | 1.00th=[ 584], 5.00th=[ 584], 10.00th=[ 584], 20.00th=[ 584], | 30.00th=[ 584], 40.00th=[ 584], 50.00th=[ 584], 60.00th=[ 609], | 70.00th=[ 609], 80.00th=[ 609], 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= 8192, max= 8192, per=48.08%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 750=100.00% cpu : usr=0.05%, sys=14.88%, ctx=69, 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=180467: Sat Aug 8 09:07:18 2026 write: IOPS=4, BW=17.4MiB/s (18.2MB/s)(12.0MiB/691msec); 0 zone resets clat (msec): min=166, max=289, avg=216.75, stdev=64.14 lat (msec): min=167, max=289, avg=217.17, stdev=64.08 clat percentiles (msec): | 1.00th=[ 167], 5.00th=[ 167], 10.00th=[ 167], 20.00th=[ 167], | 30.00th=[ 167], 40.00th=[ 194], 50.00th=[ 194], 60.00th=[ 194], | 70.00th=[ 288], 80.00th=[ 288], 90.00th=[ 288], 95.00th=[ 288], | 99.00th=[ 288], 99.50th=[ 288], 99.90th=[ 288], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min=14422, max=14422, per=84.64%, avg=14422.00, stdev= 0.00, samples=1 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=1 lat (msec) : 250=66.67%, 500=33.33% cpu : usr=0.00%, sys=39.71%, ctx=272, 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=180468: Sat Aug 8 09:07:18 2026 write: IOPS=1, BW=7995KiB/s (8187kB/s)(12.0MiB/1537msec); 0 zone resets clat (msec): min=198, max=869, avg=506.86, stdev=338.64 lat (msec): min=199, max=869, avg=507.14, stdev=338.58 clat percentiles (msec): | 1.00th=[ 199], 5.00th=[ 199], 10.00th=[ 199], 20.00th=[ 199], | 30.00th=[ 199], 40.00th=[ 451], 50.00th=[ 451], 60.00th=[ 451], | 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= 7211, max= 8192, per=45.20%, avg=7701.50, stdev=693.67, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 250=33.33%, 500=33.33%, 1000=33.33% cpu : usr=0.00%, sys=18.29%, ctx=76, 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=8520KiB/s (8725kB/s), 2130KiB/s-6770KiB/s (2181kB/s-6933kB/s), io=16.0MiB (16.8MB), run=1815-1923msec WRITE: bw=16.6MiB/s (17.4MB/s), 4260KiB/s-17.4MiB/s (4362kB/s-18.2MB/s), io=32.0MiB (33.6MB), run=691-1923msec rand-rw: (groupid=0, jobs=1): err= 0: pid=180469: Sat Aug 8 09:07:18 2026 read: IOPS=1, BW=8079KiB/s (8273kB/s)(12.0MiB/1521msec) clat (msec): min=447, max=527, avg=484.41, stdev=40.30 lat (msec): min=447, max=527, avg=484.42, stdev=40.30 clat percentiles (msec): | 1.00th=[ 447], 5.00th=[ 447], 10.00th=[ 447], 20.00th=[ 447], | 30.00th=[ 447], 40.00th=[ 477], 50.00th=[ 477], 60.00th=[ 477], | 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= 5550, max= 8175, per=71.96%, avg=6862.50, stdev=1856.16, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=66.67%, 750=33.33% cpu : usr=0.00%, sys=47.89%, ctx=2736, 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=180470: Sat Aug 8 09:07:18 2026 read: IOPS=0, BW=2384KiB/s (2441kB/s)(4096KiB/1718msec) clat (nsec): min=560808k, max=560808k, avg=560808366.00, stdev= 0.00 lat (nsec): min=560811k, max=560811k, avg=560810823.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 558], 5.00th=[ 558], 10.00th=[ 558], 20.00th=[ 558], | 30.00th=[ 558], 40.00th=[ 558], 50.00th=[ 558], 60.00th=[ 558], | 70.00th=[ 558], 80.00th=[ 558], 90.00th=[ 558], 95.00th=[ 558], | 99.00th=[ 558], 99.50th=[ 558], 99.90th=[ 558], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 5535, max= 5535, per=58.04%, avg=5535.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=1, BW=4768KiB/s (4883kB/s)(8192KiB/1718msec); 0 zone resets clat (msec): min=371, max=747, avg=559.80, stdev=265.65 lat (msec): min=372, max=747, avg=560.13, stdev=265.60 clat percentiles (msec): | 1.00th=[ 372], 5.00th=[ 372], 10.00th=[ 372], 20.00th=[ 372], | 30.00th=[ 372], 40.00th=[ 372], 50.00th=[ 372], 60.00th=[ 751], | 70.00th=[ 751], 80.00th=[ 751], 90.00th=[ 751], 95.00th=[ 751], | 99.00th=[ 751], 99.50th=[ 751], 99.90th=[ 751], 99.95th=[ 751], | 99.99th=[ 751] bw ( KiB/s): min= 8175, max= 8175, per=52.22%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 750=66.67% cpu : usr=0.00%, sys=23.18%, ctx=772, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180471: Sat Aug 8 09:07:18 2026 write: IOPS=1, BW=5871KiB/s (6012kB/s)(12.0MiB/2093msec); 0 zone resets clat (msec): min=90, max=1888, avg=691.59, stdev=1036.25 lat (msec): min=91, max=1888, avg=692.09, stdev=1036.47 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 91], 10.00th=[ 91], 20.00th=[ 91], | 30.00th=[ 91], 40.00th=[ 96], 50.00th=[ 96], 60.00th=[ 96], | 70.00th=[ 1888], 80.00th=[ 1888], 90.00th=[ 1888], 95.00th=[ 1888], | 99.00th=[ 1888], 99.50th=[ 1888], 99.90th=[ 1888], 99.95th=[ 1888], | 99.99th=[ 1888] bw ( KiB/s): min=16351, max=16351, per=100.00%, avg=16351.00, stdev= 0.00, samples=1 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=1 lat (msec) : 100=66.67%, 2000=33.33% cpu : usr=0.05%, sys=11.09%, ctx=44, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180472: Sat Aug 8 09:07:18 2026 write: IOPS=1, BW=7452KiB/s (7631kB/s)(12.0MiB/1649msec); 0 zone resets clat (msec): min=277, max=726, avg=525.07, stdev=227.89 lat (msec): min=278, max=727, avg=525.51, stdev=227.91 clat percentiles (msec): | 1.00th=[ 279], 5.00th=[ 279], 10.00th=[ 279], 20.00th=[ 279], | 30.00th=[ 279], 40.00th=[ 575], 50.00th=[ 575], 60.00th=[ 575], | 70.00th=[ 726], 80.00th=[ 726], 90.00th=[ 726], 95.00th=[ 726], | 99.00th=[ 726], 99.50th=[ 726], 99.90th=[ 726], 99.95th=[ 726], | 99.99th=[ 726] bw ( KiB/s): min= 5680, max= 8175, per=44.25%, avg=6927.50, stdev=1764.23, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 750=66.67% cpu : usr=0.12%, sys=16.14%, ctx=48, 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 Run status group 0 (all jobs): READ: bw=9537KiB/s (9766kB/s), 2384KiB/s-8079KiB/s (2441kB/s-8273kB/s), io=16.0MiB (16.8MB), run=1521-1718msec WRITE: bw=15.3MiB/s (16.0MB/s), 4768KiB/s-7452KiB/s (4883kB/s-7631kB/s), io=32.0MiB (33.6MB), run=1649-2093msec