== sanity test 398b: DIO and buffer IO race ============== 18:56:06 (1781218566) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 3.12003 s, 16.1 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=154423: Thu Jun 11 18:57:16 2026 read: IOPS=24, BW=98.7KiB/s (101kB/s)(5992KiB/60701msec) clat (usec): min=33, max=172632, avg=19675.68, stdev=13360.57 lat (usec): min=33, max=172633, avg=19676.86, stdev=13360.57 clat percentiles (usec): | 1.00th=[ 57], 5.00th=[ 108], 10.00th=[ 7504], 20.00th=[ 10683], | 30.00th=[ 12387], 40.00th=[ 14484], 50.00th=[ 17171], 60.00th=[ 20055], | 70.00th=[ 23725], 80.00th=[ 28443], 90.00th=[ 35390], 95.00th=[ 41157], | 99.00th=[ 61080], 99.50th=[ 78119], 99.90th=[106431], 99.95th=[173016], | 99.99th=[173016] bw ( KiB/s): min= 16, max= 182, per=24.76%, avg=97.81, stdev=31.34, samples=120 iops : min= 4, max= 45, avg=24.05, stdev= 7.82, samples=120 write: IOPS=25, BW=104KiB/s (106kB/s)(6296KiB/60701msec); 0 zone resets clat (usec): min=823, max=710870, avg=19667.74, stdev=24347.02 lat (usec): min=824, max=710872, avg=19670.44, stdev=24346.90 clat percentiles (usec): | 1.00th=[ 1188], 5.00th=[ 1876], 10.00th=[ 2606], 20.00th=[ 3916], | 30.00th=[ 6259], 40.00th=[ 11731], 50.00th=[ 15926], 60.00th=[ 20317], | 70.00th=[ 25035], 80.00th=[ 31065], 90.00th=[ 40633], 95.00th=[ 51119], | 99.00th=[ 80217], 99.50th=[100140], 99.90th=[127402], 99.95th=[708838], | 99.99th=[708838] bw ( KiB/s): min= 24, max= 176, per=24.95%, avg=103.31, stdev=29.17, samples=119 iops : min= 6, max= 44, avg=25.42, stdev= 7.36, samples=119 lat (usec) : 50=0.20%, 100=1.92%, 250=1.43%, 500=0.16%, 750=0.03% lat (usec) : 1000=0.16% lat (msec) : 2=2.93%, 4=7.68%, 10=12.76%, 20=32.13%, 50=36.85% lat (msec) : 100=3.39%, 250=0.33%, 750=0.03% cpu : usr=0.10%, sys=19.39%, ctx=8325, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=154424: Thu Jun 11 18:57:16 2026 read: IOPS=24, BW=99.6KiB/s (102kB/s)(5940KiB/59613msec) clat (usec): min=35, max=604083, avg=19964.02, stdev=20562.06 lat (usec): min=36, max=604084, avg=19965.92, stdev=20563.16 clat percentiles (usec): | 1.00th=[ 63], 5.00th=[ 123], 10.00th=[ 7767], 20.00th=[ 10683], | 30.00th=[ 12649], 40.00th=[ 14484], 50.00th=[ 16909], 60.00th=[ 19792], | 70.00th=[ 22938], 80.00th=[ 27919], 90.00th=[ 34341], 95.00th=[ 41157], | 99.00th=[ 72877], 99.50th=[ 95945], 99.90th=[179307], 99.95th=[608175], | 99.99th=[608175] bw ( KiB/s): min= 7, max= 159, per=25.07%, avg=99.03, stdev=27.70, samples=118 iops : min= 1, max= 39, avg=24.34, stdev= 6.98, samples=118 write: IOPS=26, BW=106KiB/s (109kB/s)(6348KiB/59613msec); 0 zone resets clat (usec): min=797, max=148873, avg=18689.16, stdev=16928.24 lat (usec): min=799, max=148874, avg=18690.57, stdev=16928.34 clat percentiles (usec): | 1.00th=[ 1205], 5.00th=[ 1762], 10.00th=[ 2442], 20.00th=[ 3654], | 30.00th=[ 6063], 40.00th=[ 10814], 50.00th=[ 15270], 60.00th=[ 19006], | 70.00th=[ 24249], 80.00th=[ 30802], 90.00th=[ 40633], 95.00th=[ 50070], | 99.00th=[ 69731], 99.50th=[ 89654], 99.90th=[147850], 99.95th=[147850], | 99.99th=[147850] bw ( KiB/s): min= 36, max= 215, per=25.44%, avg=105.31, stdev=31.01, samples=118 iops : min= 9, max= 53, avg=25.92, stdev= 7.70, samples=118 lat (usec) : 50=0.13%, 100=1.37%, 250=2.05%, 500=0.10%, 1000=0.07% lat (msec) : 2=3.32%, 4=8.01%, 10=13.28%, 20=33.24%, 50=34.80% lat (msec) : 100=3.22%, 250=0.39%, 750=0.03% cpu : usr=0.14%, sys=19.69%, ctx=8342, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=154425: Thu Jun 11 18:57:16 2026 read: IOPS=25, BW=102KiB/s (105kB/s)(6028KiB/59050msec) clat (usec): min=20, max=617897, avg=19379.21, stdev=19585.40 lat (usec): min=20, max=617898, avg=19380.44, stdev=19585.39 clat percentiles (usec): | 1.00th=[ 61], 5.00th=[ 123], 10.00th=[ 7635], 20.00th=[ 10290], | 30.00th=[ 12125], 40.00th=[ 14353], 50.00th=[ 16712], 60.00th=[ 19530], | 70.00th=[ 23725], 80.00th=[ 27919], 90.00th=[ 33817], 95.00th=[ 40109], | 99.00th=[ 57934], 99.50th=[ 67634], 99.90th=[111674], 99.95th=[616563], | 99.99th=[616563] bw ( KiB/s): min= 7, max= 176, per=25.81%, avg=101.94, stdev=30.32, samples=117 iops : min= 1, max= 44, avg=25.07, stdev= 7.58, samples=117 write: IOPS=26, BW=106KiB/s (109kB/s)(6260KiB/59050msec); 0 zone resets clat (usec): min=851, max=209356, avg=18881.66, stdev=17590.87 lat (usec): min=852, max=209358, avg=18883.49, stdev=17591.09 clat percentiles (usec): | 1.00th=[ 1287], 5.00th=[ 1942], 10.00th=[ 2606], 20.00th=[ 3851], | 30.00th=[ 6259], 40.00th=[ 11338], 50.00th=[ 15270], 60.00th=[ 19268], | 70.00th=[ 24511], 80.00th=[ 30278], 90.00th=[ 39584], 95.00th=[ 50070], | 99.00th=[ 83362], 99.50th=[ 92799], 99.90th=[141558], 99.95th=[208667], | 99.99th=[208667] bw ( KiB/s): min= 8, max= 160, per=25.49%, avg=105.54, stdev=29.74, samples=117 iops : min= 2, max= 40, avg=25.97, stdev= 7.43, samples=117 lat (usec) : 50=0.23%, 100=1.33%, 250=1.99%, 500=0.13%, 750=0.07% lat (usec) : 1000=0.13% lat (msec) : 2=2.64%, 4=8.01%, 10=13.87%, 20=32.85%, 50=35.29% lat (msec) : 100=3.26%, 250=0.20%, 750=0.03% cpu : usr=0.12%, sys=19.68%, ctx=8200, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=154426: Thu Jun 11 18:57:16 2026 read: IOPS=25, BW=100KiB/s (103kB/s)(6052KiB/60281msec) clat (usec): min=34, max=707979, avg=19473.04, stdev=21648.43 lat (usec): min=35, max=707980, avg=19475.31, stdev=21647.59 clat percentiles (usec): | 1.00th=[ 58], 5.00th=[ 124], 10.00th=[ 8094], 20.00th=[ 10683], | 30.00th=[ 12387], 40.00th=[ 14615], 50.00th=[ 16581], 60.00th=[ 19268], | 70.00th=[ 23200], 80.00th=[ 27395], 90.00th=[ 33817], 95.00th=[ 40109], | 99.00th=[ 58983], 99.50th=[ 69731], 99.90th=[200279], 99.95th=[708838], | 99.99th=[708838] bw ( KiB/s): min= 14, max= 208, per=25.36%, avg=100.17, stdev=31.33, samples=120 iops : min= 3, max= 52, avg=24.63, stdev= 7.87, samples=120 write: IOPS=25, BW=103KiB/s (106kB/s)(6236KiB/60281msec); 0 zone resets clat (usec): min=919, max=166472, avg=19581.02, stdev=18220.68 lat (usec): min=920, max=166474, avg=19582.62, stdev=18220.60 clat percentiles (usec): | 1.00th=[ 1205], 5.00th=[ 1876], 10.00th=[ 2606], 20.00th=[ 3720], | 30.00th=[ 6063], 40.00th=[ 11469], 50.00th=[ 15533], 60.00th=[ 20055], | 70.00th=[ 25297], 80.00th=[ 31327], 90.00th=[ 41681], 95.00th=[ 54789], | 99.00th=[ 83362], 99.50th=[ 98042], 99.90th=[160433], 99.95th=[166724], | 99.99th=[166724] bw ( KiB/s): min= 28, max= 200, per=25.13%, avg=104.03, stdev=29.03, samples=119 iops : min= 7, max= 50, avg=25.60, stdev= 7.35, samples=119 lat (usec) : 50=0.29%, 100=1.40%, 250=1.76%, 500=0.13%, 750=0.03% lat (usec) : 1000=0.13% lat (msec) : 2=2.64%, 4=8.20%, 10=12.50%, 20=34.18%, 50=34.67% lat (msec) : 100=3.81%, 250=0.23%, 750=0.03% cpu : usr=0.13%, sys=19.16%, ctx=8342, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=396KiB/s (405kB/s), 98.7KiB/s-102KiB/s (101kB/s-105kB/s), io=23.4MiB (24.6MB), run=59050-60701msec WRITE: bw=414KiB/s (424kB/s), 103KiB/s-106KiB/s (106kB/s-109kB/s), io=24.6MiB (25.7MB), run=59050-60701msec fio: pid=154430, err=5/file:backend.c:481, func=full resid, error=Input/output error rand-rw: (groupid=0, jobs=1): err= 0: pid=154428: Thu Jun 11 18:58:00 2026 read: IOPS=14, BW=57.6KiB/s (59.0kB/s)(5992KiB/103976msec) clat (msec): min=3, max=617, avg=16.41, stdev=22.79 lat (msec): min=3, max=617, avg=16.41, stdev=22.79 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 6], 10.00th=[ 6], 20.00th=[ 7], | 30.00th=[ 8], 40.00th=[ 9], 50.00th=[ 10], 60.00th=[ 12], | 70.00th=[ 16], 80.00th=[ 24], 90.00th=[ 36], 95.00th=[ 47], | 99.00th=[ 96], 99.50th=[ 117], 99.90th=[ 146], 99.95th=[ 617], | 99.99th=[ 617] bw ( KiB/s): min= 7, max= 160, per=28.83%, avg=57.95, stdev=35.35, samples=205 iops : min= 1, max= 40, avg=14.14, stdev= 8.86, samples=205 write: IOPS=15, BW=60.6KiB/s (62.0kB/s)(6296KiB/103976msec); 0 zone resets clat (msec): min=18, max=204, avg=50.32, stdev=24.31 lat (msec): min=18, max=204, avg=50.33, stdev=24.31 clat percentiles (msec): | 1.00th=[ 22], 5.00th=[ 25], 10.00th=[ 28], 20.00th=[ 31], | 30.00th=[ 35], 40.00th=[ 39], 50.00th=[ 43], 60.00th=[ 50], | 70.00th=[ 58], 80.00th=[ 68], 90.00th=[ 84], 95.00th=[ 95], | 99.00th=[ 136], 99.50th=[ 148], 99.90th=[ 197], 99.95th=[ 205], | 99.99th=[ 205] bw ( KiB/s): min= 15, max= 120, per=28.81%, avg=60.50, stdev=27.44, samples=206 iops : min= 3, max= 30, avg=14.77, stdev= 6.92, samples=206 lat (msec) : 4=0.07%, 10=25.94%, 20=11.98%, 50=40.20%, 100=19.37% lat (msec) : 250=2.41%, 750=0.03% cpu : usr=0.08%, sys=5.08%, ctx=5838, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=154429: Thu Jun 11 18:58:00 2026 read: IOPS=14, BW=57.4KiB/s (58.7kB/s)(5940KiB/103554msec) clat (msec): min=3, max=734, avg=15.88, stdev=24.52 lat (msec): min=3, max=734, avg=15.88, stdev=24.52 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 6], 10.00th=[ 6], 20.00th=[ 7], | 30.00th=[ 8], 40.00th=[ 9], 50.00th=[ 10], 60.00th=[ 12], | 70.00th=[ 15], 80.00th=[ 21], 90.00th=[ 33], 95.00th=[ 44], | 99.00th=[ 80], 99.50th=[ 108], 99.90th=[ 234], 99.95th=[ 735], | 99.99th=[ 735] bw ( KiB/s): min= 7, max= 160, per=28.68%, avg=57.64, stdev=35.21, samples=204 iops : min= 1, max= 40, avg=14.06, stdev= 8.87, samples=204 write: IOPS=15, BW=61.3KiB/s (62.8kB/s)(6348KiB/103554msec); 0 zone resets clat (msec): min=19, max=247, avg=50.27, stdev=25.22 lat (msec): min=19, max=247, avg=50.27, stdev=25.22 clat percentiles (msec): | 1.00th=[ 22], 5.00th=[ 25], 10.00th=[ 27], 20.00th=[ 31], | 30.00th=[ 34], 40.00th=[ 38], 50.00th=[ 42], 60.00th=[ 48], | 70.00th=[ 57], 80.00th=[ 68], 90.00th=[ 86], 95.00th=[ 101], | 99.00th=[ 134], 99.50th=[ 142], 99.90th=[ 207], 99.95th=[ 247], | 99.99th=[ 247] bw ( KiB/s): min= 15, max= 120, per=29.17%, avg=61.26, stdev=27.69, samples=205 iops : min= 3, max= 30, avg=14.96, stdev= 6.98, samples=205 lat (msec) : 4=0.03%, 10=25.85%, 20=12.57%, 50=40.30%, 100=18.36% lat (msec) : 250=2.86%, 750=0.03% cpu : usr=0.09%, sys=5.06%, ctx=5780, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 5 (file:backend.c:481, func=full resid, error=Input/output error): pid=154430: Thu Jun 11 18:58:00 2026 read: IOPS=10, BW=43.4KiB/s (44.4kB/s)(3016KiB/69568msec) clat (msec): min=4, max=145, avg=25.56, stdev=20.42 lat (msec): min=4, max=145, avg=25.56, stdev=20.42 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 10], | 30.00th=[ 13], 40.00th=[ 16], 50.00th=[ 20], 60.00th=[ 24], | 70.00th=[ 30], 80.00th=[ 39], 90.00th=[ 52], 95.00th=[ 66], | 99.00th=[ 104], 99.50th=[ 113], 99.90th=[ 146], 99.95th=[ 146], | 99.99th=[ 146] bw ( KiB/s): min= 7, max= 150, per=21.76%, avg=43.74, stdev=23.49, samples=135 iops : min= 1, max= 37, avg=10.55, stdev= 5.91, samples=135 write: IOPS=10, BW=43.9KiB/s (44.0kB/s)(3056KiB/69568msec); 0 zone resets clat (msec): min=21, max=758, avg=65.61, stdev=35.69 lat (msec): min=21, max=758, avg=65.61, stdev=35.69 clat percentiles (msec): | 1.00th=[ 25], 5.00th=[ 31], 10.00th=[ 36], 20.00th=[ 43], | 30.00th=[ 50], 40.00th=[ 56], 50.00th=[ 62], 60.00th=[ 69], | 70.00th=[ 75], 80.00th=[ 85], 90.00th=[ 97], 95.00th=[ 106], | 99.00th=[ 148], 99.50th=[ 176], 99.90th=[ 760], 99.95th=[ 760], | 99.99th=[ 760] bw ( KiB/s): min= 15, max= 103, per=20.89%, avg=43.87, stdev=18.65, samples=137 iops : min= 3, max= 25, avg=10.58, stdev= 4.70, samples=137 lat (msec) : 10=10.27%, 20=15.80%, 50=34.43%, 100=35.02%, 250=4.34% lat (msec) : 1000=0.07% cpu : usr=0.06%, sys=5.28%, ctx=2608, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=755,764,0,0 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=154431: Thu Jun 11 18:58:00 2026 read: IOPS=14, BW=58.2KiB/s (59.6kB/s)(6052KiB/103972msec) clat (msec): min=4, max=235, avg=16.15, stdev=17.35 lat (msec): min=4, max=235, avg=16.15, stdev=17.35 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 6], 10.00th=[ 6], 20.00th=[ 7], | 30.00th=[ 8], 40.00th=[ 8], 50.00th=[ 10], 60.00th=[ 12], | 70.00th=[ 16], 80.00th=[ 23], 90.00th=[ 37], 95.00th=[ 48], | 99.00th=[ 83], 99.50th=[ 111], 99.90th=[ 142], 99.95th=[ 236], | 99.99th=[ 236] bw ( KiB/s): min= 7, max= 192, per=29.39%, avg=59.07, stdev=35.27, samples=203 iops : min= 1, max= 48, avg=14.41, stdev= 8.87, samples=203 write: IOPS=14, BW=59.0KiB/s (61.4kB/s)(6236KiB/103972msec); 0 zone resets clat (msec): min=19, max=791, avg=50.89, stdev=31.21 lat (msec): min=19, max=791, avg=50.89, stdev=31.21 clat percentiles (msec): | 1.00th=[ 22], 5.00th=[ 25], 10.00th=[ 28], 20.00th=[ 32], | 30.00th=[ 35], 40.00th=[ 40], 50.00th=[ 43], 60.00th=[ 49], | 70.00th=[ 57], 80.00th=[ 67], 90.00th=[ 85], 95.00th=[ 99], | 99.00th=[ 140], 99.50th=[ 157], 99.90th=[ 245], 99.95th=[ 793], | 99.99th=[ 793] bw ( KiB/s): min= 15, max= 120, per=28.53%, avg=59.92, stdev=27.69, samples=206 iops : min= 3, max= 30, avg=14.63, stdev= 6.97, samples=206 lat (msec) : 10=26.79%, 20=11.26%, 50=40.53%, 100=18.65%, 250=2.73% lat (msec) : 1000=0.03% cpu : usr=0.09%, sys=5.08%, ctx=5830, 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=202KiB/s (207kB/s), 43.4KiB/s-58.2KiB/s (44.4kB/s-59.6kB/s), io=20.5MiB (21.5MB), run=69568-103976msec WRITE: bw=211KiB/s (216kB/s), 43.9KiB/s-61.3KiB/s (44.0kB/s-62.8kB/s), io=21.4MiB (22.5MB), run=69568-103976msec 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=154460: Thu Jun 11 18:58:20 2026 read: IOPS=25, BW=404KiB/s (413kB/s)(5920KiB/14664msec) clat (usec): min=45, max=103013, avg=19695.65, stdev=13635.51 lat (usec): min=47, max=103014, avg=19705.31, stdev=13635.20 clat percentiles (usec): | 1.00th=[ 54], 5.00th=[ 102], 10.00th=[ 163], 20.00th=[ 11207], | 30.00th=[ 13698], 40.00th=[ 15533], 50.00th=[ 17957], 60.00th=[ 20317], | 70.00th=[ 23200], 80.00th=[ 26870], 90.00th=[ 33817], 95.00th=[ 42206], | 99.00th=[ 76022], 99.50th=[ 82314], 99.90th=[103285], 99.95th=[103285], | 99.99th=[103285] bw ( KiB/s): min= 224, max= 576, per=25.28%, avg=403.90, stdev=90.37, samples=29 iops : min= 14, max= 36, avg=24.72, stdev= 5.75, samples=29 write: IOPS=27, BW=434KiB/s (445kB/s)(6368KiB/14664msec); 0 zone resets clat (usec): min=1544, max=131046, avg=18242.74, stdev=15261.55 lat (usec): min=1546, max=131047, avg=18244.94, stdev=15261.54 clat percentiles (usec): | 1.00th=[ 1860], 5.00th=[ 3425], 10.00th=[ 4228], 20.00th=[ 5735], | 30.00th=[ 8029], 40.00th=[ 11076], 50.00th=[ 14484], 60.00th=[ 17171], | 70.00th=[ 22414], 80.00th=[ 29230], 90.00th=[ 37487], 95.00th=[ 44827], | 99.00th=[ 78119], 99.50th=[ 88605], 99.90th=[130548], 99.95th=[130548], | 99.99th=[130548] bw ( KiB/s): min= 160, max= 640, per=25.85%, avg=434.76, stdev=113.06, samples=29 iops : min= 10, max= 40, avg=26.69, stdev= 7.00, samples=29 lat (usec) : 50=0.39%, 100=1.82%, 250=3.12%, 500=0.26%, 1000=0.13% lat (msec) : 2=0.65%, 4=3.91%, 10=15.10%, 20=36.33%, 50=35.29% lat (msec) : 100=2.73%, 250=0.26% cpu : usr=0.14%, sys=22.55%, ctx=2419, 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=154461: Thu Jun 11 18:58:20 2026 read: IOPS=23, BW=383KiB/s (393kB/s)(5744KiB/14981msec) clat (usec): min=50, max=145503, avg=20301.46, stdev=13537.24 lat (usec): min=50, max=145504, avg=20302.57, stdev=13537.28 clat percentiles (usec): | 1.00th=[ 63], 5.00th=[ 109], 10.00th=[ 258], 20.00th=[ 11863], | 30.00th=[ 15008], 40.00th=[ 16712], 50.00th=[ 19006], 60.00th=[ 21627], | 70.00th=[ 24511], 80.00th=[ 27919], 90.00th=[ 34341], 95.00th=[ 40633], | 99.00th=[ 66847], 99.50th=[ 86508], 99.90th=[145753], 99.95th=[145753], | 99.99th=[145753] bw ( KiB/s): min= 53, max= 574, per=23.81%, avg=380.48, stdev=110.91, samples=29 iops : min= 3, max= 35, avg=23.28, stdev= 6.97, samples=29 write: IOPS=27, BW=437KiB/s (447kB/s)(6544KiB/14981msec); 0 zone resets clat (usec): min=1130, max=131577, avg=18536.62, stdev=17377.96 lat (usec): min=1131, max=131579, avg=18539.39, stdev=17377.87 clat percentiles (msec): | 1.00th=[ 3], 5.00th=[ 3], 10.00th=[ 4], 20.00th=[ 6], | 30.00th=[ 8], 40.00th=[ 11], 50.00th=[ 14], 60.00th=[ 18], | 70.00th=[ 23], 80.00th=[ 28], 90.00th=[ 41], 95.00th=[ 55], | 99.00th=[ 88], 99.50th=[ 94], 99.90th=[ 132], 99.95th=[ 132], | 99.99th=[ 132] bw ( KiB/s): min= 187, max= 672, per=25.51%, avg=429.07, stdev=122.04, samples=29 iops : min= 11, max= 42, avg=26.31, stdev= 7.71, samples=29 lat (usec) : 100=1.69%, 250=2.86%, 500=0.26%, 1000=0.13% lat (msec) : 2=0.52%, 4=5.08%, 10=17.84%, 20=31.90%, 50=36.20% lat (msec) : 100=3.26%, 250=0.26% cpu : usr=0.13%, sys=22.38%, ctx=2390, 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=154462: Thu Jun 11 18:58:20 2026 read: IOPS=26, BW=431KiB/s (441kB/s)(6256KiB/14527msec) clat (usec): min=49, max=79907, avg=19363.67, stdev=12680.88 lat (usec): min=50, max=79909, avg=19364.81, stdev=12680.90 clat percentiles (usec): | 1.00th=[ 57], 5.00th=[ 97], 10.00th=[ 141], 20.00th=[11076], | 30.00th=[13304], 40.00th=[15664], 50.00th=[18744], 60.00th=[21365], | 70.00th=[24249], 80.00th=[28181], 90.00th=[34866], 95.00th=[39060], | 99.00th=[61080], 99.50th=[79168], 99.90th=[80217], 99.95th=[80217], | 99.99th=[80217] bw ( KiB/s): min= 223, max= 702, per=27.09%, avg=432.96, stdev=122.44, samples=28 iops : min= 13, max= 43, avg=26.57, stdev= 7.64, samples=28 write: IOPS=25, BW=415KiB/s (425kB/s)(6032KiB/14527msec); 0 zone resets clat (usec): min=1274, max=64730, avg=17998.92, stdev=13706.38 lat (usec): min=1276, max=64732, avg=18000.93, stdev=13706.37 clat percentiles (usec): | 1.00th=[ 1975], 5.00th=[ 3294], 10.00th=[ 4293], 20.00th=[ 5866], | 30.00th=[ 8586], 40.00th=[11994], 50.00th=[14353], 60.00th=[17171], | 70.00th=[22676], 80.00th=[28705], 90.00th=[36963], 95.00th=[44827], | 99.00th=[62129], 99.50th=[64226], 99.90th=[64750], 99.95th=[64750], | 99.99th=[64750] bw ( KiB/s): min= 286, max= 606, per=24.48%, avg=411.82, stdev=87.94, samples=28 iops : min= 17, max= 37, avg=25.25, stdev= 5.54, samples=28 lat (usec) : 50=0.13%, 100=2.60%, 250=3.26%, 500=1.17%, 1000=0.13% lat (msec) : 2=0.52%, 4=3.78%, 10=14.71%, 20=33.46%, 50=37.63% lat (msec) : 100=2.60% cpu : usr=0.15%, sys=22.72%, ctx=2389, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=154463: Thu Jun 11 18:58:20 2026 read: IOPS=26, BW=418KiB/s (429kB/s)(6032KiB/14414msec) clat (usec): min=32, max=98098, avg=20460.48, stdev=14245.45 lat (usec): min=32, max=98099, avg=20461.62, stdev=14245.49 clat percentiles (usec): | 1.00th=[ 64], 5.00th=[ 103], 10.00th=[ 155], 20.00th=[10945], | 30.00th=[13960], 40.00th=[16188], 50.00th=[18482], 60.00th=[21365], | 70.00th=[24511], 80.00th=[28443], 90.00th=[36439], 95.00th=[45351], | 99.00th=[68682], 99.50th=[88605], 99.90th=[98042], 99.95th=[98042], | 99.99th=[98042] bw ( KiB/s): min= 287, max= 608, per=26.15%, avg=417.82, stdev=81.05, samples=28 iops : min= 17, max= 38, avg=25.61, stdev= 5.09, samples=28 write: IOPS=27, BW=434KiB/s (444kB/s)(6256KiB/14414msec); 0 zone resets clat (usec): min=1702, max=87018, avg=17040.11, stdev=13389.27 lat (usec): min=1703, max=87019, avg=17042.18, stdev=13389.19 clat percentiles (usec): | 1.00th=[ 1827], 5.00th=[ 3163], 10.00th=[ 3916], 20.00th=[ 5211], | 30.00th=[ 7439], 40.00th=[10814], 50.00th=[13566], 60.00th=[17957], | 70.00th=[20841], 80.00th=[27395], 90.00th=[33817], 95.00th=[40633], | 99.00th=[66847], 99.50th=[85459], 99.90th=[86508], 99.95th=[86508], | 99.99th=[86508] bw ( KiB/s): min= 192, max= 670, per=25.74%, avg=432.93, stdev=117.96, samples=28 iops : min= 12, max= 41, avg=26.57, stdev= 7.31, samples=28 lat (usec) : 50=0.13%, 100=1.82%, 250=3.78%, 500=0.13%, 750=0.13% lat (usec) : 1000=0.13% lat (msec) : 2=1.04%, 4=4.30%, 10=15.36%, 20=34.24%, 50=35.81% lat (msec) : 100=3.12% cpu : usr=0.15%, sys=22.97%, ctx=2304, 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=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=1599KiB/s (1637kB/s), 383KiB/s-431KiB/s (393kB/s-441kB/s), io=23.4MiB (24.5MB), run=14414-14981msec WRITE: bw=1682KiB/s (1723kB/s), 415KiB/s-437KiB/s (425kB/s-447kB/s), io=24.6MiB (25.8MB), run=14414-14981msec rand-rw: (groupid=0, jobs=1): err= 0: pid=154464: Thu Jun 11 18:58:33 2026 read: IOPS=13, BW=220KiB/s (225kB/s)(5920KiB/26904msec) clat (msec): min=4, max=111, avg=18.88, stdev=15.74 lat (msec): min=4, max=111, avg=18.88, stdev=15.74 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 6], 10.00th=[ 7], 20.00th=[ 8], | 30.00th=[ 10], 40.00th=[ 12], 50.00th=[ 14], 60.00th=[ 16], | 70.00th=[ 20], 80.00th=[ 26], 90.00th=[ 41], 95.00th=[ 57], | 99.00th=[ 75], 99.50th=[ 97], 99.90th=[ 112], 99.95th=[ 112], | 99.99th=[ 112] bw ( KiB/s): min= 63, max= 576, per=24.55%, avg=218.47, stdev=112.76, samples=53 iops : min= 3, max= 36, avg=13.15, stdev= 7.12, samples=53 write: IOPS=14, BW=237KiB/s (242kB/s)(6368KiB/26904msec); 0 zone resets clat (msec): min=21, max=179, avg=49.69, stdev=23.38 lat (msec): min=21, max=179, avg=49.70, stdev=23.38 clat percentiles (msec): | 1.00th=[ 23], 5.00th=[ 26], 10.00th=[ 29], 20.00th=[ 33], | 30.00th=[ 37], 40.00th=[ 40], 50.00th=[ 43], 60.00th=[ 47], | 70.00th=[ 56], 80.00th=[ 66], 90.00th=[ 81], 95.00th=[ 97], | 99.00th=[ 136], 99.50th=[ 180], 99.90th=[ 180], 99.95th=[ 180], | 99.99th=[ 180] bw ( KiB/s): min= 64, max= 416, per=25.23%, avg=236.19, stdev=98.26, samples=53 iops : min= 4, max= 26, avg=14.26, stdev= 6.26, samples=53 lat (msec) : 10=15.36%, 20=18.88%, 50=44.27%, 100=19.27%, 250=2.21% cpu : usr=0.10%, sys=6.36%, ctx=1587, 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=154465: Thu Jun 11 18:58:33 2026 read: IOPS=13, BW=216KiB/s (221kB/s)(5744KiB/26558msec) clat (usec): min=4271, max=95671, avg=17086.99, stdev=14561.80 lat (usec): min=4277, max=95672, avg=17090.06, stdev=14564.76 clat percentiles (usec): | 1.00th=[ 5080], 5.00th=[ 5669], 10.00th=[ 6259], 20.00th=[ 7308], | 30.00th=[ 8586], 40.00th=[ 9765], 50.00th=[11863], 60.00th=[14615], | 70.00th=[17957], 80.00th=[24511], 90.00th=[34866], 95.00th=[47449], | 99.00th=[77071], 99.50th=[88605], 99.90th=[95945], 99.95th=[95945], | 99.99th=[95945] bw ( KiB/s): min= 31, max= 576, per=24.73%, avg=220.06, stdev=128.39, samples=51 iops : min= 1, max= 36, avg=13.27, stdev= 8.17, samples=51 write: IOPS=15, BW=246KiB/s (252kB/s)(6544KiB/26558msec); 0 zone resets clat (msec): min=19, max=179, avg=49.81, stdev=24.64 lat (msec): min=19, max=179, avg=49.81, stdev=24.64 clat percentiles (msec): | 1.00th=[ 23], 5.00th=[ 26], 10.00th=[ 28], 20.00th=[ 32], | 30.00th=[ 35], 40.00th=[ 39], 50.00th=[ 43], 60.00th=[ 48], | 70.00th=[ 55], 80.00th=[ 64], 90.00th=[ 81], 95.00th=[ 97], | 99.00th=[ 140], 99.50th=[ 144], 99.90th=[ 180], 99.95th=[ 180], | 99.99th=[ 180] bw ( KiB/s): min= 95, max= 480, per=26.21%, avg=245.35, stdev=102.60, samples=52 iops : min= 5, max= 30, avg=14.85, stdev= 6.51, samples=52 lat (msec) : 10=19.40%, 20=15.63%, 50=43.10%, 100=19.40%, 250=2.47% cpu : usr=0.11%, sys=6.19%, ctx=1601, 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=154466: Thu Jun 11 18:58:33 2026 read: IOPS=15, BW=241KiB/s (247kB/s)(6256KiB/25970msec) clat (msec): min=4, max=159, avg=18.82, stdev=17.87 lat (msec): min=4, max=159, avg=18.82, stdev=17.87 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 6], 10.00th=[ 7], 20.00th=[ 8], | 30.00th=[ 9], 40.00th=[ 11], 50.00th=[ 13], 60.00th=[ 16], | 70.00th=[ 20], 80.00th=[ 26], 90.00th=[ 38], 95.00th=[ 53], | 99.00th=[ 90], 99.50th=[ 108], 99.90th=[ 161], 99.95th=[ 161], | 99.99th=[ 161] bw ( KiB/s): min= 63, max= 640, per=27.29%, avg=242.86, stdev=145.30, samples=51 iops : min= 3, max= 40, avg=14.69, stdev= 9.16, samples=51 write: IOPS=14, BW=232KiB/s (238kB/s)(6032KiB/25970msec); 0 zone resets clat (msec): min=20, max=160, avg=48.92, stdev=24.45 lat (msec): min=20, max=160, avg=48.92, stdev=24.45 clat percentiles (msec): | 1.00th=[ 23], 5.00th=[ 26], 10.00th=[ 27], 20.00th=[ 31], | 30.00th=[ 34], 40.00th=[ 37], 50.00th=[ 42], 60.00th=[ 47], | 70.00th=[ 55], 80.00th=[ 64], 90.00th=[ 83], 95.00th=[ 101], | 99.00th=[ 146], 99.50th=[ 153], 99.90th=[ 161], 99.95th=[ 161], | 99.99th=[ 161] bw ( KiB/s): min= 95, max= 480, per=24.61%, avg=230.39, stdev=105.61, samples=51 iops : min= 5, max= 30, avg=13.90, stdev= 6.72, samples=51 lat (msec) : 10=19.27%, 20=17.06%, 50=43.36%, 100=17.45%, 250=2.86% cpu : usr=0.07%, sys=6.72%, ctx=1674, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=154467: Thu Jun 11 18:58:33 2026 read: IOPS=14, BW=228KiB/s (234kB/s)(6032KiB/26449msec) clat (msec): min=4, max=152, avg=18.56, stdev=16.59 lat (msec): min=4, max=152, avg=18.56, stdev=16.59 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 6], 10.00th=[ 7], 20.00th=[ 8], | 30.00th=[ 9], 40.00th=[ 11], 50.00th=[ 14], 60.00th=[ 17], | 70.00th=[ 19], 80.00th=[ 24], 90.00th=[ 36], 95.00th=[ 58], | 99.00th=[ 80], 99.50th=[ 97], 99.90th=[ 153], 99.95th=[ 153], | 99.99th=[ 153] bw ( KiB/s): min= 63, max= 544, per=25.47%, avg=226.71, stdev=111.64, samples=52 iops : min= 3, max= 34, avg=13.67, stdev= 7.10, samples=52 write: IOPS=14, BW=237KiB/s (242kB/s)(6256KiB/26449msec); 0 zone resets clat (msec): min=19, max=177, avg=49.35, stdev=23.95 lat (msec): min=19, max=177, avg=49.35, stdev=23.95 clat percentiles (msec): | 1.00th=[ 23], 5.00th=[ 25], 10.00th=[ 28], 20.00th=[ 32], | 30.00th=[ 35], 40.00th=[ 39], 50.00th=[ 42], 60.00th=[ 47], | 70.00th=[ 55], 80.00th=[ 64], 90.00th=[ 82], 95.00th=[ 99], | 99.00th=[ 136], 99.50th=[ 148], 99.90th=[ 178], 99.95th=[ 178], | 99.99th=[ 178] bw ( KiB/s): min= 95, max= 479, per=25.26%, avg=236.42, stdev=102.75, samples=52 iops : min= 5, max= 29, avg=14.29, stdev= 6.55, samples=52 lat (msec) : 10=17.58%, 20=18.10%, 50=42.97%, 100=18.75%, 250=2.60% cpu : usr=0.05%, sys=6.56%, ctx=1624, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=890KiB/s (912kB/s), 216KiB/s-241KiB/s (221kB/s-247kB/s), io=23.4MiB (24.5MB), run=25970-26904msec WRITE: bw=937KiB/s (959kB/s), 232KiB/s-246KiB/s (238kB/s-252kB/s), io=24.6MiB (25.8MB), run=25970-26904msec 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=154484: Thu Jun 11 18:58:42 2026 read: IOPS=1, BW=1748KiB/s (1790kB/s)(7168KiB/4100msec) clat (msec): min=90, max=328, avg=163.45, stdev=82.35 lat (msec): min=90, max=328, avg=163.45, stdev=82.35 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 90], 10.00th=[ 90], 20.00th=[ 99], | 30.00th=[ 128], 40.00th=[ 128], 50.00th=[ 140], 60.00th=[ 155], | 70.00th=[ 155], 80.00th=[ 207], 90.00th=[ 330], 95.00th=[ 330], | 99.00th=[ 330], 99.50th=[ 330], 99.90th=[ 330], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 2003, max= 5380, per=67.89%, avg=2864.25, stdev=1677.25, samples=4 iops : min= 1, max= 5, avg= 2.00, stdev= 2.00, samples=4 write: IOPS=1, BW=1249KiB/s (1279kB/s)(5120KiB/4100msec); 0 zone resets clat (msec): min=146, max=1926, avg=578.07, stdev=758.52 lat (msec): min=146, max=1926, avg=578.17, stdev=758.52 clat percentiles (msec): | 1.00th=[ 146], 5.00th=[ 146], 10.00th=[ 146], 20.00th=[ 146], | 30.00th=[ 211], 40.00th=[ 211], 50.00th=[ 234], 60.00th=[ 234], | 70.00th=[ 376], 80.00th=[ 376], 90.00th=[ 1921], 95.00th=[ 1921], | 99.00th=[ 1921], 99.50th=[ 1921], 99.90th=[ 1921], 99.95th=[ 1921], | 99.99th=[ 1921] bw ( KiB/s): min= 2003, max= 6095, per=68.56%, avg=4049.00, stdev=2893.48, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 lat (msec) : 100=16.67%, 250=58.33%, 500=16.67%, 2000=8.33% cpu : usr=0.00%, sys=27.57%, ctx=640, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=154485: Thu Jun 11 18:58:42 2026 read: IOPS=0, BW=422KiB/s (432kB/s)(2048KiB/4854msec) clat (msec): min=126, max=245, avg=186.10, stdev=83.92 lat (msec): min=126, max=245, avg=186.10, stdev=83.92 clat percentiles (msec): | 1.00th=[ 127], 5.00th=[ 127], 10.00th=[ 127], 20.00th=[ 127], | 30.00th=[ 127], 40.00th=[ 127], 50.00th=[ 127], 60.00th=[ 247], | 70.00th=[ 247], 80.00th=[ 247], 90.00th=[ 247], 95.00th=[ 247], | 99.00th=[ 247], 99.50th=[ 247], 99.90th=[ 247], 99.95th=[ 247], | 99.99th=[ 247] bw ( KiB/s): min= 1750, max= 2031, per=44.81%, avg=1890.50, stdev=198.70, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2110KiB/s (2160kB/s)(10.0MiB/4854msec); 0 zone resets clat (msec): min=100, max=2487, avg=444.95, stdev=733.54 lat (msec): min=100, max=2487, avg=445.04, stdev=733.53 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 101], 10.00th=[ 101], 20.00th=[ 117], | 30.00th=[ 122], 40.00th=[ 132], 50.00th=[ 148], 60.00th=[ 167], | 70.00th=[ 257], 80.00th=[ 321], 90.00th=[ 600], 95.00th=[ 2500], | 99.00th=[ 2500], 99.50th=[ 2500], 99.90th=[ 2500], 99.95th=[ 2500], | 99.99th=[ 2500] bw ( KiB/s): min= 1750, max= 6144, per=53.82%, avg=3178.60, stdev=1892.11, samples=5 iops : min= 1, max= 6, avg= 2.40, stdev= 2.19, samples=5 lat (msec) : 250=66.67%, 500=16.67%, 750=8.33%, >=2000=8.33% cpu : usr=0.04%, sys=27.69%, ctx=256, 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=154486: Thu Jun 11 18:58:42 2026 read: IOPS=1, BW=1458KiB/s (1493kB/s)(6144KiB/4215msec) clat (usec): min=577, max=1852.6k, avg=394539.13, stdev=723445.65 lat (usec): min=577, max=1852.6k, avg=394540.30, stdev=723445.56 clat percentiles (usec): | 1.00th=[ 578], 5.00th=[ 578], 10.00th=[ 578], | 20.00th=[ 693], 30.00th=[ 693], 40.00th=[ 42730], | 50.00th=[ 42730], 60.00th=[ 179307], 70.00th=[ 291505], | 80.00th=[ 291505], 90.00th=[1853883], 95.00th=[1853883], | 99.00th=[1853883], 99.50th=[1853883], 99.90th=[1853883], | 99.95th=[1853883], 99.99th=[1853883] bw ( KiB/s): min= 2031, max= 4087, per=79.33%, avg=3347.00, stdev=1142.64, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=1, BW=1458KiB/s (1493kB/s)(6144KiB/4215msec); 0 zone resets clat (msec): min=142, max=472, avg=292.69, stdev=120.47 lat (msec): min=142, max=472, avg=292.77, stdev=120.50 clat percentiles (msec): | 1.00th=[ 144], 5.00th=[ 144], 10.00th=[ 144], 20.00th=[ 199], | 30.00th=[ 199], 40.00th=[ 247], 50.00th=[ 247], 60.00th=[ 334], | 70.00th=[ 363], 80.00th=[ 363], 90.00th=[ 472], 95.00th=[ 472], | 99.00th=[ 472], 99.50th=[ 472], 99.90th=[ 472], 99.95th=[ 472], | 99.99th=[ 472] bw ( KiB/s): min= 1799, max= 4087, per=50.59%, avg=2988.00, stdev=1257.96, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 lat (usec) : 750=16.67% lat (msec) : 50=8.33%, 250=33.33%, 500=33.33%, 2000=8.33% cpu : usr=0.00%, sys=25.82%, ctx=765, 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=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=154487: Thu Jun 11 18:58:42 2026 read: IOPS=1, BW=1109KiB/s (1136kB/s)(5120KiB/4617msec) clat (msec): min=132, max=1588, avg=476.81, stdev=624.37 lat (msec): min=132, max=1588, avg=476.81, stdev=624.37 clat percentiles (msec): | 1.00th=[ 133], 5.00th=[ 133], 10.00th=[ 133], 20.00th=[ 133], | 30.00th=[ 148], 40.00th=[ 148], 50.00th=[ 226], 60.00th=[ 226], | 70.00th=[ 288], 80.00th=[ 288], 90.00th=[ 1586], 95.00th=[ 1586], | 99.00th=[ 1586], 99.50th=[ 1586], 99.90th=[ 1586], 99.95th=[ 1586], | 99.99th=[ 1586] bw ( KiB/s): min= 1961, max= 4063, per=63.64%, avg=2685.00, stdev=1193.90, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=1, BW=1553KiB/s (1590kB/s)(7168KiB/4617msec); 0 zone resets clat (msec): min=110, max=540, avg=304.10, stdev=172.24 lat (msec): min=110, max=540, avg=304.23, stdev=172.27 clat percentiles (msec): | 1.00th=[ 111], 5.00th=[ 111], 10.00th=[ 111], 20.00th=[ 130], | 30.00th=[ 165], 40.00th=[ 165], 50.00th=[ 317], 60.00th=[ 409], | 70.00th=[ 409], 80.00th=[ 460], 90.00th=[ 542], 95.00th=[ 542], | 99.00th=[ 542], 99.50th=[ 542], 99.90th=[ 542], 99.95th=[ 542], | 99.99th=[ 542] bw ( KiB/s): min= 1802, max= 6144, per=47.49%, avg=2804.60, stdev=1869.35, samples=5 iops : min= 1, max= 6, avg= 2.00, stdev= 2.24, samples=5 lat (msec) : 250=50.00%, 500=33.33%, 750=8.33%, 2000=8.33% cpu : usr=0.00%, sys=30.52%, ctx=560, 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=4219KiB/s (4320kB/s), 422KiB/s-1748KiB/s (432kB/s-1790kB/s), io=20.0MiB (20.0MB), run=4100-4854msec WRITE: bw=5907KiB/s (6049kB/s), 1249KiB/s-2110KiB/s (1279kB/s-2160kB/s), io=28.0MiB (29.4MB), run=4100-4854msec rand-rw: (groupid=0, jobs=1): err= 0: pid=154479: Thu Jun 11 18:58:43 2026 read: IOPS=1, BW=1806KiB/s (1849kB/s)(7168KiB/3969msec) clat (msec): min=39, max=509, avg=233.23, stdev=202.66 lat (msec): min=39, max=509, avg=233.23, stdev=202.66 clat percentiles (msec): | 1.00th=[ 40], 5.00th=[ 40], 10.00th=[ 40], 20.00th=[ 58], | 30.00th=[ 79], 40.00th=[ 79], 50.00th=[ 133], 60.00th=[ 351], | 70.00th=[ 351], 80.00th=[ 464], 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= 2015, max= 5251, per=72.17%, avg=2840.50, stdev=1607.08, samples=4 iops : min= 1, max= 5, avg= 2.50, stdev= 1.73, samples=4 write: IOPS=1, BW=1290KiB/s (1321kB/s)(5120KiB/3969msec); 0 zone resets clat (msec): min=139, max=1590, avg=464.83, stdev=629.78 lat (msec): min=139, max=1590, avg=464.93, stdev=629.77 clat percentiles (msec): | 1.00th=[ 140], 5.00th=[ 140], 10.00th=[ 140], 20.00th=[ 140], | 30.00th=[ 184], 40.00th=[ 184], 50.00th=[ 186], 60.00th=[ 186], | 70.00th=[ 226], 80.00th=[ 226], 90.00th=[ 1586], 95.00th=[ 1586], | 99.00th=[ 1586], 99.50th=[ 1586], 99.90th=[ 1586], 99.95th=[ 1586], | 99.99th=[ 1586] bw ( KiB/s): min= 1750, max= 4096, per=44.93%, avg=2476.00, stdev=1088.04, samples=4 iops : min= 1, max= 4, avg= 1.75, stdev= 1.50, samples=4 lat (msec) : 50=8.33%, 100=16.67%, 250=41.67%, 500=16.67%, 750=8.33% lat (msec) : 2000=8.33% cpu : usr=0.00%, sys=7.96%, ctx=82, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=154480: Thu Jun 11 18:58:43 2026 read: IOPS=0, BW=394KiB/s (403kB/s)(2048KiB/5202msec) clat (msec): min=40, max=632, avg=336.48, stdev=418.40 lat (msec): min=40, max=632, avg=336.48, stdev=418.40 clat percentiles (msec): | 1.00th=[ 41], 5.00th=[ 41], 10.00th=[ 41], 20.00th=[ 41], | 30.00th=[ 41], 40.00th=[ 41], 50.00th=[ 41], 60.00th=[ 634], | 70.00th=[ 634], 80.00th=[ 634], 90.00th=[ 634], 95.00th=[ 634], | 99.00th=[ 634], 99.50th=[ 634], 99.90th=[ 634], 99.95th=[ 634], | 99.99th=[ 634] bw ( KiB/s): min= 1762, max= 2048, per=48.40%, avg=1905.00, stdev=202.23, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 write: IOPS=1, BW=1968KiB/s (2016kB/s)(10.0MiB/5202msec); 0 zone resets clat (msec): min=66, max=2443, avg=449.58, stdev=726.99 lat (msec): min=66, max=2444, avg=449.69, stdev=726.99 clat percentiles (msec): | 1.00th=[ 67], 5.00th=[ 67], 10.00th=[ 67], 20.00th=[ 68], | 30.00th=[ 79], 40.00th=[ 120], 50.00th=[ 140], 60.00th=[ 159], | 70.00th=[ 288], 80.00th=[ 523], 90.00th=[ 617], 95.00th=[ 2433], | 99.00th=[ 2433], 99.50th=[ 2433], 99.90th=[ 2433], 99.95th=[ 2433], | 99.99th=[ 2433] bw ( KiB/s): min= 1762, max= 6144, per=58.19%, avg=3206.60, stdev=1893.75, samples=5 iops : min= 1, max= 6, avg= 2.60, stdev= 2.30, samples=5 lat (msec) : 50=8.33%, 100=25.00%, 250=25.00%, 500=8.33%, 750=25.00% lat (msec) : >=2000=8.33% cpu : usr=0.04%, sys=8.44%, ctx=127, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=154481: Thu Jun 11 18:58:43 2026 read: IOPS=1, BW=1232KiB/s (1262kB/s)(6144KiB/4985msec) clat (msec): min=55, max=2226, avg=559.46, stdev=821.55 lat (msec): min=55, max=2226, avg=559.46, stdev=821.55 clat percentiles (msec): | 1.00th=[ 56], 5.00th=[ 56], 10.00th=[ 56], 20.00th=[ 207], | 30.00th=[ 207], 40.00th=[ 279], 50.00th=[ 279], 60.00th=[ 292], | 70.00th=[ 296], 80.00th=[ 296], 90.00th=[ 2232], 95.00th=[ 2232], | 99.00th=[ 2232], 99.50th=[ 2232], 99.90th=[ 2232], 99.95th=[ 2232], | 99.99th=[ 2232] bw ( KiB/s): min= 1988, max= 4031, per=68.32%, avg=2689.00, stdev=1162.59, samples=3 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=3 write: IOPS=1, BW=1232KiB/s (1262kB/s)(6144KiB/4985msec); 0 zone resets clat (msec): min=95, max=382, avg=262.21, stdev=113.75 lat (msec): min=95, max=382, avg=263.01, stdev=114.16 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 96], 10.00th=[ 96], 20.00th=[ 155], | 30.00th=[ 155], 40.00th=[ 279], 50.00th=[ 279], 60.00th=[ 317], | 70.00th=[ 351], 80.00th=[ 351], 90.00th=[ 384], 95.00th=[ 384], | 99.00th=[ 384], 99.50th=[ 384], 99.90th=[ 384], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 1756, max= 2048, per=35.98%, avg=1983.00, stdev=127.70, samples=5 iops : min= 1, max= 2, avg= 1.60, stdev= 0.55, samples=5 lat (msec) : 100=16.67%, 250=16.67%, 500=58.33%, >=2000=8.33% cpu : usr=0.02%, sys=8.55%, ctx=136, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=154482: Thu Jun 11 18:58:43 2026 read: IOPS=1, BW=1261KiB/s (1291kB/s)(5120KiB/4061msec) clat (msec): min=100, max=1538, avg=418.13, stdev=627.13 lat (msec): min=100, max=1538, avg=418.13, stdev=627.13 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 101], 10.00th=[ 101], 20.00th=[ 101], | 30.00th=[ 109], 40.00th=[ 109], 50.00th=[ 153], 60.00th=[ 153], | 70.00th=[ 192], 80.00th=[ 192], 90.00th=[ 1536], 95.00th=[ 1536], | 99.00th=[ 1536], 99.50th=[ 1536], 99.90th=[ 1536], 99.95th=[ 1536], | 99.99th=[ 1536] bw ( KiB/s): min= 2043, max= 6144, per=100.00%, avg=4093.50, stdev=2899.84, samples=2 iops : min= 1, max= 6, avg= 3.50, stdev= 3.54, samples=2 write: IOPS=1, BW=1765KiB/s (1807kB/s)(7168KiB/4061msec); 0 zone resets clat (msec): min=129, max=501, avg=270.34, stdev=129.95 lat (msec): min=129, max=501, avg=270.45, stdev=129.94 clat percentiles (msec): | 1.00th=[ 130], 5.00th=[ 130], 10.00th=[ 130], 20.00th=[ 174], | 30.00th=[ 178], 40.00th=[ 178], 50.00th=[ 266], 60.00th=[ 279], | 70.00th=[ 279], 80.00th=[ 372], 90.00th=[ 502], 95.00th=[ 502], | 99.00th=[ 502], 99.50th=[ 502], 99.90th=[ 502], 99.95th=[ 502], | 99.99th=[ 502] bw ( KiB/s): min= 1765, max= 4031, per=44.85%, avg=2471.75, stdev=1047.88, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 lat (msec) : 250=58.33%, 500=25.00%, 750=8.33%, 2000=8.33% cpu : usr=0.00%, sys=10.27%, ctx=124, 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=3937KiB/s (4031kB/s), 394KiB/s-1806KiB/s (403kB/s-1849kB/s), io=20.0MiB (20.0MB), run=3969-5202msec WRITE: bw=5512KiB/s (5644kB/s), 1232KiB/s-1968KiB/s (1262kB/s-2016kB/s), io=28.0MiB (29.4MB), run=3969-5202msec 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=154494: Thu Jun 11 18:58:51 2026 read: IOPS=2, BW=8809KiB/s (9020kB/s)(12.0MiB/1395msec) clat (msec): min=104, max=1059, avg=460.93, stdev=521.14 lat (msec): min=104, max=1059, avg=460.93, stdev=521.14 clat percentiles (msec): | 1.00th=[ 105], 5.00th=[ 105], 10.00th=[ 105], 20.00th=[ 105], | 30.00th=[ 105], 40.00th=[ 220], 50.00th=[ 220], 60.00th=[ 220], | 70.00th=[ 1062], 80.00th=[ 1062], 90.00th=[ 1062], 95.00th=[ 1062], | 99.00th=[ 1062], 99.50th=[ 1062], 99.90th=[ 1062], 99.95th=[ 1062], | 99.99th=[ 1062] bw ( KiB/s): min=15255, max=15255, per=100.00%, avg=15255.00, stdev= 0.00, samples=1 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=1 lat (msec) : 250=66.67%, 2000=33.33% cpu : usr=0.00%, sys=15.06%, ctx=49, 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=154495: Thu Jun 11 18:58:51 2026 read: IOPS=0, BW=1916KiB/s (1962kB/s)(4096KiB/2138msec) clat (nsec): min=684299k, max=684299k, avg=684298782.00, stdev= 0.00 lat (nsec): min=684302k, max=684302k, avg=684302213.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 684], 5.00th=[ 684], 10.00th=[ 684], 20.00th=[ 684], | 30.00th=[ 684], 40.00th=[ 684], 50.00th=[ 684], 60.00th=[ 684], | 70.00th=[ 684], 80.00th=[ 684], 90.00th=[ 684], 95.00th=[ 684], | 99.00th=[ 684], 99.50th=[ 684], 99.90th=[ 684], 99.95th=[ 684], | 99.99th=[ 684] bw ( KiB/s): min= 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 write: IOPS=0, BW=3832KiB/s (3924kB/s)(8192KiB/2138msec); 0 zone resets clat (msec): min=183, max=1210, avg=697.03, stdev=725.59 lat (msec): min=184, max=1210, avg=697.51, stdev=725.75 clat percentiles (msec): | 1.00th=[ 184], 5.00th=[ 184], 10.00th=[ 184], 20.00th=[ 184], | 30.00th=[ 184], 40.00th=[ 184], 50.00th=[ 184], 60.00th=[ 1217], | 70.00th=[ 1217], 80.00th=[ 1217], 90.00th=[ 1217], 95.00th=[ 1217], | 99.00th=[ 1217], 99.50th=[ 1217], 99.90th=[ 1217], 99.95th=[ 1217], | 99.99th=[ 1217] bw ( KiB/s): min= 8175, max= 8175, per=53.77%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.05%, sys=12.49%, ctx=60, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=154496: Thu Jun 11 18:58:51 2026 write: IOPS=1, BW=5702KiB/s (5839kB/s)(12.0MiB/2155msec); 0 zone resets clat (msec): min=401, max=1261, avg=703.99, stdev=483.22 lat (msec): min=402, max=1261, avg=704.47, stdev=483.14 clat percentiles (msec): | 1.00th=[ 401], 5.00th=[ 401], 10.00th=[ 401], 20.00th=[ 401], | 30.00th=[ 401], 40.00th=[ 451], 50.00th=[ 451], 60.00th=[ 451], | 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= 7571, max= 8175, per=51.78%, avg=7873.00, stdev=427.09, 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=11.93%, ctx=57, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=154497: Thu Jun 11 18:58:51 2026 write: IOPS=1, BW=7115KiB/s (7286kB/s)(12.0MiB/1727msec); 0 zone resets clat (msec): min=214, max=1056, avg=555.88, stdev=443.10 lat (msec): min=214, max=1056, avg=557.49, stdev=442.45 clat percentiles (msec): | 1.00th=[ 215], 5.00th=[ 215], 10.00th=[ 215], 20.00th=[ 215], | 30.00th=[ 215], 40.00th=[ 397], 50.00th=[ 397], 60.00th=[ 397], | 70.00th=[ 1053], 80.00th=[ 1053], 90.00th=[ 1053], 95.00th=[ 1053], | 99.00th=[ 1053], 99.50th=[ 1053], 99.90th=[ 1053], 99.95th=[ 1053], | 99.99th=[ 1053] bw ( KiB/s): min= 7627, max= 8175, per=51.96%, avg=7901.00, stdev=387.49, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 250=33.33%, 500=33.33%, 2000=33.33% cpu : usr=0.00%, sys=14.48%, ctx=177, 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=7663KiB/s (7847kB/s), 1916KiB/s-8809KiB/s (1962kB/s-9020kB/s), io=16.0MiB (16.8MB), run=1395-2138msec WRITE: bw=14.8MiB/s (15.6MB/s), 3832KiB/s-7115KiB/s (3924kB/s-7286kB/s), io=32.0MiB (33.6MB), run=1727-2155msec rand-rw: (groupid=0, jobs=1): err= 0: pid=154499: Thu Jun 11 18:58:51 2026 read: IOPS=2, BW=8924KiB/s (9138kB/s)(12.0MiB/1377msec) clat (msec): min=320, max=500, avg=419.42, stdev=91.53 lat (msec): min=320, max=500, avg=419.42, stdev=91.52 clat percentiles (msec): | 1.00th=[ 321], 5.00th=[ 321], 10.00th=[ 321], 20.00th=[ 321], | 30.00th=[ 321], 40.00th=[ 439], 50.00th=[ 439], 60.00th=[ 439], | 70.00th=[ 502], 80.00th=[ 502], 90.00th=[ 502], 95.00th=[ 502], | 99.00th=[ 502], 99.50th=[ 502], 99.90th=[ 502], 99.95th=[ 502], | 99.99th=[ 502] bw ( KiB/s): min= 5483, max= 8192, per=96.19%, avg=6837.50, stdev=1915.55, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 500=66.67%, 750=33.33% cpu : usr=0.00%, sys=48.04%, ctx=1745, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=154500: Thu Jun 11 18:58:51 2026 read: IOPS=0, BW=1777KiB/s (1820kB/s)(4096KiB/2305msec) clat (nsec): min=418367k, max=418367k, avg=418366548.00, stdev= 0.00 lat (nsec): min=418399k, max=418399k, avg=418398934.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 418], 5.00th=[ 418], 10.00th=[ 418], 20.00th=[ 418], | 30.00th=[ 418], 40.00th=[ 418], 50.00th=[ 418], 60.00th=[ 418], | 70.00th=[ 418], 80.00th=[ 418], 90.00th=[ 418], 95.00th=[ 418], | 99.00th=[ 418], 99.50th=[ 418], 99.90th=[ 418], 99.95th=[ 418], | 99.99th=[ 418] bw ( KiB/s): min= 7816, max= 7816, per=100.00%, avg=7816.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3554KiB/s (3639kB/s)(8192KiB/2305msec); 0 zone resets clat (msec): min=244, max=1593, avg=918.98, stdev=953.78 lat (msec): min=245, max=1593, avg=919.46, stdev=953.66 clat percentiles (msec): | 1.00th=[ 245], 5.00th=[ 245], 10.00th=[ 245], 20.00th=[ 245], | 30.00th=[ 245], 40.00th=[ 245], 50.00th=[ 245], 60.00th=[ 1586], | 70.00th=[ 1586], 80.00th=[ 1586], 90.00th=[ 1586], 95.00th=[ 1586], | 99.00th=[ 1586], 99.50th=[ 1586], 99.90th=[ 1586], 99.95th=[ 1586], | 99.99th=[ 1586] lat (msec) : 250=33.33%, 500=33.33%, 2000=33.33% cpu : usr=0.04%, sys=16.84%, ctx=740, 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=154501: Thu Jun 11 18:58:51 2026 write: IOPS=1, BW=5435KiB/s (5565kB/s)(12.0MiB/2261msec); 0 zone resets clat (msec): min=568, max=1013, avg=723.18, stdev=251.21 lat (msec): min=569, max=1013, avg=723.66, stdev=251.17 clat percentiles (msec): | 1.00th=[ 567], 5.00th=[ 567], 10.00th=[ 567], 20.00th=[ 567], | 30.00th=[ 567], 40.00th=[ 592], 50.00th=[ 592], 60.00th=[ 592], | 70.00th=[ 1011], 80.00th=[ 1011], 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= 8175, max= 8192, per=57.57%, avg=8183.50, stdev=12.02, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 750=66.67%, 2000=33.33% cpu : usr=0.04%, sys=11.42%, ctx=53, 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=154502: Thu Jun 11 18:58:51 2026 write: IOPS=1, BW=6970KiB/s (7137kB/s)(12.0MiB/1763msec); 0 zone resets clat (msec): min=280, max=773, avg=559.73, stdev=253.02 lat (msec): min=280, max=774, avg=560.17, stdev=253.11 clat percentiles (msec): | 1.00th=[ 279], 5.00th=[ 279], 10.00th=[ 279], 20.00th=[ 279], | 30.00th=[ 279], 40.00th=[ 625], 50.00th=[ 625], 60.00th=[ 625], | 70.00th=[ 776], 80.00th=[ 776], 90.00th=[ 776], 95.00th=[ 776], | 99.00th=[ 776], 99.50th=[ 776], 99.90th=[ 776], 99.95th=[ 776], | 99.99th=[ 776] bw ( KiB/s): min= 8175, max= 8192, per=57.57%, avg=8183.50, stdev=12.02, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 500=33.33%, 750=33.33%, 1000=33.33% cpu : usr=0.00%, sys=14.98%, ctx=83, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=7108KiB/s (7279kB/s), 1777KiB/s-8924KiB/s (1820kB/s-9138kB/s), io=16.0MiB (16.8MB), run=1377-2305msec WRITE: bw=13.9MiB/s (14.6MB/s), 3554KiB/s-6970KiB/s (3639kB/s-7137kB/s), io=32.0MiB (33.6MB), run=1763-2305msec