== sanity test 398b: DIO and buffer IO race ============== 19:29:53 (1787700593) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 5.53537 s, 9.1 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=144803: Tue Aug 25 19:32:28 2026 read: IOPS=10, BW=43.6KiB/s (44.7kB/s)(5992KiB/137314msec) clat (usec): min=34, max=356466, avg=44375.66, stdev=36153.69 lat (usec): min=34, max=356467, avg=44376.95, stdev=36153.62 clat percentiles (usec): | 1.00th=[ 49], 5.00th=[ 57], 10.00th=[ 122], 20.00th=[ 18744], | 30.00th=[ 24773], 40.00th=[ 30802], 50.00th=[ 36963], 60.00th=[ 44303], | 70.00th=[ 54264], 80.00th=[ 66323], 90.00th=[ 89654], 95.00th=[106431], | 99.00th=[156238], 99.50th=[191890], 99.90th=[354419], 99.95th=[354419], | 99.99th=[354419] bw ( KiB/s): min= 7, max= 103, per=25.04%, avg=43.57, stdev=19.48, samples=267 iops : min= 1, max= 25, avg=10.25, stdev= 4.90, samples=267 write: IOPS=11, BW=45.9KiB/s (46.0kB/s)(6296KiB/137314msec); 0 zone resets clat (usec): min=892, max=589369, avg=44744.44, stdev=49974.91 lat (usec): min=893, max=589370, avg=44748.82, stdev=49975.79 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1172], 10.00th=[ 1336], 20.00th=[ 3556], | 30.00th=[ 8455], 40.00th=[ 17171], 50.00th=[ 29754], 60.00th=[ 43254], | 70.00th=[ 59507], 80.00th=[ 79168], 90.00th=[111674], 95.00th=[141558], | 99.00th=[200279], 99.50th=[240124], 99.90th=[434111], 99.95th=[591397], | 99.99th=[591397] bw ( KiB/s): min= 7, max= 126, per=25.17%, avg=45.81, stdev=20.14, samples=267 iops : min= 1, max= 31, avg=10.81, stdev= 5.08, samples=267 lat (usec) : 50=0.81%, 100=3.91%, 250=0.26%, 500=0.13%, 750=0.03% lat (usec) : 1000=0.16% lat (msec) : 2=7.06%, 4=3.58%, 10=6.12%, 20=10.16%, 50=33.11% lat (msec) : 100=25.13%, 250=9.15%, 500=0.36%, 750=0.03% cpu : usr=0.06%, sys=4.38%, ctx=6121, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144804: Tue Aug 25 19:32:28 2026 read: IOPS=10, BW=43.7KiB/s (44.8kB/s)(5940KiB/135861msec) clat (usec): min=27, max=603081, avg=44100.64, stdev=37824.11 lat (usec): min=27, max=603082, avg=44103.09, stdev=37823.97 clat percentiles (usec): | 1.00th=[ 47], 5.00th=[ 57], 10.00th=[ 86], 20.00th=[ 19006], | 30.00th=[ 25297], 40.00th=[ 30802], 50.00th=[ 36963], 60.00th=[ 43254], | 70.00th=[ 52691], 80.00th=[ 65274], 90.00th=[ 85459], 95.00th=[105382], | 99.00th=[158335], 99.50th=[183501], 99.90th=[396362], 99.95th=[599786], | 99.99th=[599786] bw ( KiB/s): min= 7, max= 111, per=25.00%, avg=43.49, stdev=20.58, samples=265 iops : min= 1, max= 27, avg=10.23, stdev= 5.19, samples=265 write: IOPS=11, BW=46.7KiB/s (47.8kB/s)(6348KiB/135861msec); 0 zone resets clat (usec): min=932, max=563213, avg=44049.01, stdev=50626.07 lat (usec): min=933, max=563215, avg=44050.85, stdev=50626.08 clat percentiles (usec): | 1.00th=[ 1037], 5.00th=[ 1139], 10.00th=[ 1319], 20.00th=[ 3556], | 30.00th=[ 7701], 40.00th=[ 17171], 50.00th=[ 30802], 60.00th=[ 43779], | 70.00th=[ 56886], 80.00th=[ 79168], 90.00th=[104334], 95.00th=[132645], | 99.00th=[210764], 99.50th=[274727], 99.90th=[513803], 99.95th=[566232], | 99.99th=[566232] bw ( KiB/s): min= 7, max= 120, per=25.55%, avg=46.51, stdev=19.47, samples=265 iops : min= 1, max= 30, avg=10.99, stdev= 4.90, samples=265 lat (usec) : 50=0.88%, 100=4.20%, 250=0.16%, 500=0.13%, 750=0.03% lat (usec) : 1000=0.16% lat (msec) : 2=6.77%, 4=4.23%, 10=6.84%, 20=8.72%, 50=34.11% lat (msec) : 100=25.10%, 250=8.24%, 500=0.33%, 750=0.10% cpu : usr=0.06%, sys=4.41%, ctx=6150, 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=144805: Tue Aug 25 19:32:28 2026 read: IOPS=10, BW=43.9KiB/s (44.9kB/s)(6028KiB/137418msec) clat (usec): min=24, max=417144, avg=43204.94, stdev=35572.62 lat (usec): min=25, max=417144, avg=43208.77, stdev=35571.65 clat percentiles (usec): | 1.00th=[ 43], 5.00th=[ 55], 10.00th=[ 76], 20.00th=[ 17433], | 30.00th=[ 24773], 40.00th=[ 31589], 50.00th=[ 36963], 60.00th=[ 43254], | 70.00th=[ 52167], 80.00th=[ 64750], 90.00th=[ 86508], 95.00th=[106431], | 99.00th=[147850], 99.50th=[198181], 99.90th=[320865], 99.95th=[417334], | 99.99th=[417334] bw ( KiB/s): min= 7, max= 111, per=25.24%, avg=43.92, stdev=20.01, samples=266 iops : min= 1, max= 27, avg=10.34, stdev= 5.04, samples=266 write: IOPS=11, BW=45.6KiB/s (46.6kB/s)(6260KiB/137418msec); 0 zone resets clat (usec): min=912, max=549703, avg=45939.84, stdev=50153.79 lat (usec): min=913, max=549704, avg=45942.67, stdev=50153.86 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1156], 10.00th=[ 1369], 20.00th=[ 4113], | 30.00th=[ 8029], 40.00th=[ 20055], 50.00th=[ 33817], 60.00th=[ 46400], | 70.00th=[ 61604], 80.00th=[ 79168], 90.00th=[110625], 95.00th=[137364], | 99.00th=[202376], 99.50th=[254804], 99.90th=[509608], 99.95th=[549454], | 99.99th=[549454] bw ( KiB/s): min= 7, max= 127, per=24.87%, avg=45.27, stdev=20.23, samples=268 iops : min= 1, max= 31, avg=10.69, stdev= 5.09, samples=268 lat (usec) : 50=1.17%, 100=4.43%, 250=0.39%, 500=0.10%, 1000=0.07% lat (msec) : 2=6.84%, 4=3.29%, 10=6.67%, 20=8.72%, 50=33.46% lat (msec) : 100=25.07%, 250=9.44%, 500=0.29%, 750=0.07% cpu : usr=0.06%, sys=4.43%, ctx=6075, 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=144806: Tue Aug 25 19:32:28 2026 read: IOPS=11, BW=44.0KiB/s (45.1kB/s)(6052KiB/137526msec) clat (usec): min=32, max=607643, avg=45415.17, stdev=39408.83 lat (usec): min=32, max=607643, avg=45416.76, stdev=39408.73 clat percentiles (usec): | 1.00th=[ 41], 5.00th=[ 54], 10.00th=[ 65], 20.00th=[ 18220], | 30.00th=[ 24773], 40.00th=[ 31327], 50.00th=[ 38536], 60.00th=[ 45351], | 70.00th=[ 56361], 80.00th=[ 69731], 90.00th=[ 88605], 95.00th=[106431], | 99.00th=[179307], 99.50th=[212861], 99.90th=[396362], 99.95th=[608175], | 99.99th=[608175] bw ( KiB/s): min= 7, max= 102, per=25.02%, avg=43.54, stdev=18.30, samples=268 iops : min= 1, max= 25, avg=10.25, stdev= 4.62, samples=268 write: IOPS=11, BW=45.3KiB/s (46.4kB/s)(6236KiB/137526msec); 0 zone resets clat (usec): min=998, max=355508, avg=43845.46, stdev=46972.53 lat (usec): min=999, max=355510, avg=43852.87, stdev=46971.69 clat percentiles (usec): | 1.00th=[ 1045], 5.00th=[ 1139], 10.00th=[ 1287], 20.00th=[ 3458], | 30.00th=[ 7439], 40.00th=[ 16712], 50.00th=[ 29754], 60.00th=[ 42730], | 70.00th=[ 58459], 80.00th=[ 81265], 90.00th=[108528], 95.00th=[133694], | 99.00th=[200279], 99.50th=[252707], 99.90th=[287310], 99.95th=[354419], | 99.99th=[354419] bw ( KiB/s): min= 7, max= 127, per=24.57%, avg=44.71, stdev=20.22, samples=269 iops : min= 1, max= 31, avg=10.55, stdev= 5.10, samples=269 lat (usec) : 50=1.20%, 100=4.56%, 250=0.29%, 750=0.03%, 1000=0.03% lat (msec) : 2=7.42%, 4=3.61%, 10=5.99%, 20=9.38%, 50=32.06% lat (msec) : 100=25.85%, 250=9.21%, 500=0.33%, 750=0.03% cpu : usr=0.07%, sys=4.34%, ctx=6164, 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=175KiB/s (179kB/s), 43.6KiB/s-44.0KiB/s (44.7kB/s-45.1kB/s), io=23.4MiB (24.6MB), run=135861-137526msec WRITE: bw=183KiB/s (187kB/s), 45.3KiB/s-46.7KiB/s (46.4kB/s-47.8kB/s), io=24.6MiB (25.7MB), run=135861-137526msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144808: Tue Aug 25 19:34:57 2026 read: IOPS=5, BW=20.0KiB/s (21.5kB/s)(5992KiB/285441msec) clat (msec): min=5, max=747, avg=35.79, stdev=43.50 lat (msec): min=5, max=747, avg=35.79, stdev=43.50 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 19], 50.00th=[ 22], 60.00th=[ 26], | 70.00th=[ 33], 80.00th=[ 46], 90.00th=[ 81], 95.00th=[ 115], | 99.00th=[ 211], 99.50th=[ 234], 99.90th=[ 567], 99.95th=[ 751], | 99.99th=[ 751] bw ( KiB/s): min= 7, max= 103, per=29.37%, avg=24.38, stdev=16.71, samples=475 iops : min= 1, max= 25, avg= 5.47, stdev= 4.22, samples=475 write: IOPS=5, BW=22.1KiB/s (22.6kB/s)(6296KiB/285441msec); 0 zone resets clat (msec): min=40, max=641, avg=147.22, stdev=75.71 lat (msec): min=40, max=641, avg=147.22, stdev=75.71 clat percentiles (msec): | 1.00th=[ 54], 5.00th=[ 66], 10.00th=[ 77], 20.00th=[ 89], | 30.00th=[ 102], 40.00th=[ 114], 50.00th=[ 128], 60.00th=[ 144], | 70.00th=[ 165], 80.00th=[ 197], 90.00th=[ 247], 95.00th=[ 288], | 99.00th=[ 414], 99.50th=[ 489], 99.90th=[ 642], 99.95th=[ 642], | 99.99th=[ 642] bw ( KiB/s): min= 7, max= 47, per=25.24%, avg=21.96, stdev=10.28, samples=552 iops : min= 1, max= 11, avg= 4.87, stdev= 2.63, samples=552 lat (msec) : 10=3.97%, 20=18.33%, 50=18.07%, 100=20.08%, 250=34.64% lat (msec) : 500=4.62%, 750=0.29% cpu : usr=0.04%, sys=0.95%, ctx=5003, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144809: Tue Aug 25 19:34:57 2026 read: IOPS=5, BW=20.8KiB/s (21.2kB/s)(5940KiB/286258msec) clat (msec): min=4, max=603, avg=36.24, stdev=41.23 lat (msec): min=4, max=603, avg=36.25, stdev=41.25 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 23], 60.00th=[ 28], | 70.00th=[ 35], 80.00th=[ 48], 90.00th=[ 80], 95.00th=[ 110], | 99.00th=[ 186], 99.50th=[ 224], 99.90th=[ 489], 99.95th=[ 600], | 99.99th=[ 600] bw ( KiB/s): min= 5, max= 87, per=28.66%, avg=23.79, stdev=16.41, samples=481 iops : min= 1, max= 21, avg= 5.32, stdev= 4.14, samples=481 write: IOPS=5, BW=22.2KiB/s (22.7kB/s)(6348KiB/286258msec); 0 zone resets clat (msec): min=43, max=719, avg=146.39, stdev=72.01 lat (msec): min=43, max=719, avg=146.39, stdev=72.01 clat percentiles (msec): | 1.00th=[ 56], 5.00th=[ 68], 10.00th=[ 78], 20.00th=[ 90], | 30.00th=[ 103], 40.00th=[ 114], 50.00th=[ 127], 60.00th=[ 144], | 70.00th=[ 165], 80.00th=[ 192], 90.00th=[ 241], 95.00th=[ 288], | 99.00th=[ 393], 99.50th=[ 430], 99.90th=[ 550], 99.95th=[ 718], | 99.99th=[ 718] bw ( KiB/s): min= 7, max= 48, per=25.04%, avg=21.79, stdev=10.03, samples=559 iops : min= 1, max= 12, avg= 4.83, stdev= 2.57, samples=559 lat (msec) : 10=3.65%, 20=16.57%, 50=18.98%, 100=20.70%, 250=35.68% lat (msec) : 500=4.26%, 750=0.16% cpu : usr=0.03%, sys=0.96%, ctx=4990, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144810: Tue Aug 25 19:34:57 2026 read: IOPS=5, BW=21.1KiB/s (21.6kB/s)(6028KiB/285965msec) clat (msec): min=5, max=562, avg=37.63, stdev=41.91 lat (msec): min=5, max=562, avg=37.63, stdev=41.91 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 23], 60.00th=[ 28], | 70.00th=[ 36], 80.00th=[ 52], 90.00th=[ 89], 95.00th=[ 115], | 99.00th=[ 199], 99.50th=[ 243], 99.90th=[ 388], 99.95th=[ 567], | 99.99th=[ 567] bw ( KiB/s): min= 7, max= 103, per=28.63%, avg=23.76, stdev=16.77, samples=490 iops : min= 1, max= 25, avg= 5.32, stdev= 4.22, samples=490 write: IOPS=5, BW=21.9KiB/s (22.4kB/s)(6260KiB/285965msec); 0 zone resets clat (msec): min=43, max=724, avg=146.42, stdev=73.64 lat (msec): min=43, max=724, avg=146.42, stdev=73.64 clat percentiles (msec): | 1.00th=[ 55], 5.00th=[ 68], 10.00th=[ 77], 20.00th=[ 90], | 30.00th=[ 103], 40.00th=[ 114], 50.00th=[ 128], 60.00th=[ 144], | 70.00th=[ 163], 80.00th=[ 192], 90.00th=[ 245], 95.00th=[ 292], | 99.00th=[ 384], 99.50th=[ 439], 99.90th=[ 659], 99.95th=[ 726], | 99.99th=[ 726] bw ( KiB/s): min= 7, max= 48, per=24.98%, avg=21.73, stdev=10.35, samples=554 iops : min= 1, max= 12, avg= 4.81, stdev= 2.65, samples=554 lat (msec) : 10=3.68%, 20=17.22%, 50=18.13%, 100=20.93%, 250=35.12% lat (msec) : 500=4.75%, 750=0.16% cpu : usr=0.04%, sys=0.96%, ctx=5053, 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=144811: Tue Aug 25 19:34:57 2026 read: IOPS=5, BW=21.2KiB/s (21.7kB/s)(6052KiB/286039msec) clat (msec): min=5, max=474, avg=38.07, stdev=42.86 lat (msec): min=5, max=474, avg=38.08, stdev=42.86 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 20], 50.00th=[ 23], 60.00th=[ 28], | 70.00th=[ 36], 80.00th=[ 50], 90.00th=[ 90], 95.00th=[ 126], | 99.00th=[ 207], 99.50th=[ 279], 99.90th=[ 384], 99.95th=[ 477], | 99.99th=[ 477] bw ( KiB/s): min= 7, max= 103, per=29.72%, avg=24.67, stdev=16.82, samples=474 iops : min= 1, max= 25, avg= 5.54, stdev= 4.23, samples=474 write: IOPS=5, BW=21.8KiB/s (22.3kB/s)(6236KiB/286039msec); 0 zone resets clat (msec): min=39, max=678, avg=146.46, stdev=73.60 lat (msec): min=39, max=679, avg=146.46, stdev=73.60 clat percentiles (msec): | 1.00th=[ 53], 5.00th=[ 68], 10.00th=[ 77], 20.00th=[ 89], | 30.00th=[ 103], 40.00th=[ 115], 50.00th=[ 128], 60.00th=[ 142], | 70.00th=[ 163], 80.00th=[ 194], 90.00th=[ 245], 95.00th=[ 292], | 99.00th=[ 405], 99.50th=[ 447], 99.90th=[ 584], 99.95th=[ 676], | 99.99th=[ 676] bw ( KiB/s): min= 5, max= 48, per=24.88%, avg=21.64, stdev=10.22, samples=554 iops : min= 1, max= 12, avg= 4.79, stdev= 2.62, samples=554 lat (msec) : 10=3.84%, 20=17.22%, 50=18.91%, 100=19.73%, 250=35.32% lat (msec) : 500=4.85%, 750=0.13% cpu : usr=0.04%, sys=0.97%, ctx=5019, 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=83.9KiB/s (85.9kB/s), 20.8KiB/s-21.2KiB/s (21.2kB/s-21.7kB/s), io=23.4MiB (24.6MB), run=285441-286258msec WRITE: bw=87.8KiB/s (89.9kB/s), 21.8KiB/s-22.2KiB/s (22.3kB/s-22.7kB/s), io=24.6MiB (25.7MB), run=285441-286258msec 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=144873: Tue Aug 25 19:35:35 2026 read: IOPS=14, BW=229KiB/s (235kB/s)(5920KiB/25827msec) clat (usec): min=38, max=261933, avg=35156.66, stdev=30773.27 lat (usec): min=38, max=261934, avg=35166.56, stdev=30770.40 clat percentiles (usec): | 1.00th=[ 42], 5.00th=[ 56], 10.00th=[ 63], 20.00th=[ 91], | 30.00th=[ 19006], 40.00th=[ 27132], 50.00th=[ 32637], 60.00th=[ 37487], | 70.00th=[ 45351], 80.00th=[ 56886], 90.00th=[ 70779], 95.00th=[ 86508], | 99.00th=[125305], 99.50th=[166724], 99.90th=[261096], 99.95th=[261096], | 99.99th=[261096] bw ( KiB/s): min= 63, max= 448, per=26.50%, avg=229.53, stdev=89.92, samples=51 iops : min= 3, max= 28, avg=13.61, stdev= 5.67, samples=51 write: IOPS=15, BW=247KiB/s (252kB/s)(6368KiB/25827msec); 0 zone resets clat (usec): min=1394, max=197604, avg=31294.83, stdev=32149.60 lat (usec): min=1396, max=197606, avg=31296.95, stdev=32149.62 clat percentiles (usec): | 1.00th=[ 1450], 5.00th=[ 1795], 10.00th=[ 2573], 20.00th=[ 4752], | 30.00th=[ 7111], 40.00th=[ 10945], 50.00th=[ 19006], 60.00th=[ 30278], | 70.00th=[ 42730], 80.00th=[ 58983], 90.00th=[ 77071], 95.00th=[ 89654], | 99.00th=[139461], 99.50th=[166724], 99.90th=[198181], 99.95th=[198181], | 99.99th=[198181] bw ( KiB/s): min= 64, max= 440, per=27.53%, avg=250.84, stdev=82.95, samples=50 iops : min= 4, max= 27, avg=14.96, stdev= 5.24, samples=50 lat (usec) : 50=1.04%, 100=8.85%, 250=1.04%, 500=0.39%, 750=0.13% lat (msec) : 2=3.78%, 4=4.95%, 10=10.03%, 20=11.07%, 50=33.33% lat (msec) : 100=22.53%, 250=2.73%, 500=0.13% cpu : usr=0.07%, sys=5.82%, ctx=1321, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144874: Tue Aug 25 19:35:35 2026 read: IOPS=13, BW=214KiB/s (219kB/s)(5744KiB/26894msec) clat (usec): min=37, max=236435, avg=37023.59, stdev=31424.51 lat (usec): min=37, max=236436, avg=37024.83, stdev=31424.50 clat percentiles (usec): | 1.00th=[ 45], 5.00th=[ 58], 10.00th=[ 64], 20.00th=[ 89], | 30.00th=[ 21890], 40.00th=[ 27657], 50.00th=[ 33162], 60.00th=[ 40109], | 70.00th=[ 50594], 80.00th=[ 61080], 90.00th=[ 74974], 95.00th=[ 89654], | 99.00th=[124257], 99.50th=[185598], 99.90th=[235930], 99.95th=[235930], | 99.99th=[235930] bw ( KiB/s): min= 30, max= 416, per=24.70%, avg=213.91, stdev=87.13, samples=53 iops : min= 1, max= 26, avg=12.64, stdev= 5.50, samples=53 write: IOPS=15, BW=243KiB/s (249kB/s)(6544KiB/26894msec); 0 zone resets clat (usec): min=1479, max=241804, avg=32540.26, stdev=35159.88 lat (usec): min=1481, max=241804, avg=32549.64, stdev=35154.72 clat percentiles (usec): | 1.00th=[ 1582], 5.00th=[ 1745], 10.00th=[ 2311], 20.00th=[ 5407], | 30.00th=[ 8029], 40.00th=[ 13173], 50.00th=[ 19792], 60.00th=[ 30016], | 70.00th=[ 41157], 80.00th=[ 56886], 90.00th=[ 79168], 95.00th=[ 96994], | 99.00th=[162530], 99.50th=[173016], 99.90th=[242222], 99.95th=[242222], | 99.99th=[242222] bw ( KiB/s): min= 63, max= 479, per=26.62%, avg=242.49, stdev=100.81, samples=53 iops : min= 3, max= 29, avg=14.45, stdev= 6.33, samples=53 lat (usec) : 50=0.78%, 100=9.38%, 250=0.52% lat (msec) : 2=4.69%, 4=4.43%, 10=10.94%, 20=9.64%, 50=32.29% lat (msec) : 100=23.70%, 250=3.65% cpu : usr=0.06%, sys=6.01%, ctx=1449, 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=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=144875: Tue Aug 25 19:35:35 2026 read: IOPS=14, BW=226KiB/s (232kB/s)(6256KiB/27635msec) clat (usec): min=33, max=155626, avg=35739.07, stdev=29806.99 lat (usec): min=33, max=155626, avg=35740.23, stdev=29806.99 clat percentiles (usec): | 1.00th=[ 41], 5.00th=[ 53], 10.00th=[ 61], 20.00th=[ 79], | 30.00th=[ 19006], 40.00th=[ 26608], 50.00th=[ 34866], 60.00th=[ 41681], | 70.00th=[ 50594], 80.00th=[ 59507], 90.00th=[ 72877], 95.00th=[ 84411], | 99.00th=[120062], 99.50th=[152044], 99.90th=[156238], 99.95th=[156238], | 99.99th=[156238] bw ( KiB/s): min= 95, max= 499, per=26.48%, avg=229.32, stdev=96.29, samples=53 iops : min= 5, max= 31, avg=13.62, stdev= 6.13, samples=53 write: IOPS=13, BW=218KiB/s (224kB/s)(6032KiB/27635msec); 0 zone resets clat (usec): min=1356, max=234258, avg=35320.75, stdev=40067.20 lat (usec): min=1358, max=234260, avg=35323.73, stdev=40067.11 clat percentiles (usec): | 1.00th=[ 1516], 5.00th=[ 1958], 10.00th=[ 2606], 20.00th=[ 4621], | 30.00th=[ 7111], 40.00th=[ 12256], 50.00th=[ 21365], 60.00th=[ 31589], | 70.00th=[ 42730], 80.00th=[ 62129], 90.00th=[ 86508], 95.00th=[113771], | 99.00th=[189793], 99.50th=[227541], 99.90th=[233833], 99.95th=[233833], | 99.99th=[233833] bw ( KiB/s): min= 31, max= 467, per=23.87%, avg=217.43, stdev=93.32, samples=53 iops : min= 1, max= 29, avg=12.87, stdev= 5.90, samples=53 lat (usec) : 50=1.95%, 100=9.90%, 250=1.04%, 1000=0.13% lat (msec) : 2=2.99%, 4=5.86%, 10=10.68%, 20=7.03%, 50=32.55% lat (msec) : 100=23.05%, 250=4.82% cpu : usr=0.07%, sys=5.36%, ctx=1463, 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=144876: Tue Aug 25 19:35:35 2026 read: IOPS=14, BW=228KiB/s (234kB/s)(6032KiB/26412msec) clat (usec): min=38, max=193506, avg=34854.91, stdev=29634.25 lat (usec): min=38, max=193507, avg=34856.09, stdev=29634.25 clat percentiles (usec): | 1.00th=[ 40], 5.00th=[ 56], 10.00th=[ 61], 20.00th=[ 103], | 30.00th=[ 20055], 40.00th=[ 26346], 50.00th=[ 32637], 60.00th=[ 39060], | 70.00th=[ 46924], 80.00th=[ 57934], 90.00th=[ 68682], 95.00th=[ 80217], | 99.00th=[145753], 99.50th=[158335], 99.90th=[193987], 99.95th=[193987], | 99.99th=[193987] bw ( KiB/s): min= 63, max= 440, per=26.17%, avg=226.60, stdev=83.98, samples=52 iops : min= 3, max= 27, avg=13.42, stdev= 5.24, samples=52 write: IOPS=14, BW=237KiB/s (243kB/s)(6256KiB/26412msec); 0 zone resets clat (usec): min=1354, max=295780, avg=33563.12, stdev=37024.79 lat (usec): min=1355, max=295783, avg=33569.39, stdev=37022.21 clat percentiles (usec): | 1.00th=[ 1500], 5.00th=[ 1909], 10.00th=[ 2606], 20.00th=[ 5342], | 30.00th=[ 7701], 40.00th=[ 12911], 50.00th=[ 19792], 60.00th=[ 31851], | 70.00th=[ 43254], 80.00th=[ 57410], 90.00th=[ 79168], 95.00th=[ 96994], | 99.00th=[177210], 99.50th=[221250], 99.90th=[295699], 99.95th=[295699], | 99.99th=[295699] bw ( KiB/s): min= 63, max= 443, per=26.09%, avg=237.69, stdev=92.10, samples=52 iops : min= 3, max= 27, avg=14.12, stdev= 5.86, samples=52 lat (usec) : 50=1.43%, 100=8.20%, 250=1.56%, 500=0.26%, 750=0.26% lat (msec) : 2=3.52%, 4=5.73%, 10=8.33%, 20=10.94%, 50=33.98% lat (msec) : 100=22.27%, 250=3.39%, 500=0.13% cpu : usr=0.06%, sys=5.39%, ctx=1450, 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=867KiB/s (888kB/s), 214KiB/s-229KiB/s (219kB/s-235kB/s), io=23.4MiB (24.5MB), run=25827-27635msec WRITE: bw=912KiB/s (934kB/s), 218KiB/s-247KiB/s (224kB/s-252kB/s), io=24.6MiB (25.8MB), run=25827-27635msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144869: Tue Aug 25 19:36:20 2026 read: IOPS=5, BW=81.7KiB/s (83.7kB/s)(5920KiB/72424msec) clat (msec): min=7, max=292, avg=39.73, stdev=38.17 lat (msec): min=7, max=292, avg=39.73, stdev=38.17 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 20], 40.00th=[ 23], 50.00th=[ 27], 60.00th=[ 33], | 70.00th=[ 40], 80.00th=[ 54], 90.00th=[ 81], 95.00th=[ 127], | 99.00th=[ 194], 99.50th=[ 257], 99.90th=[ 292], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 31, max= 319, per=27.71%, avg=91.44, stdev=58.73, samples=127 iops : min= 1, max= 19, avg= 4.99, stdev= 3.74, samples=127 write: IOPS=5, BW=87.9KiB/s (90.0kB/s)(6368KiB/72424msec); 0 zone resets clat (msec): min=52, max=385, avg=144.31, stdev=53.79 lat (msec): min=52, max=385, avg=144.31, stdev=53.79 clat percentiles (msec): | 1.00th=[ 61], 5.00th=[ 73], 10.00th=[ 88], 20.00th=[ 101], | 30.00th=[ 111], 40.00th=[ 122], 50.00th=[ 133], 60.00th=[ 148], | 70.00th=[ 165], 80.00th=[ 186], 90.00th=[ 211], 95.00th=[ 243], | 99.00th=[ 313], 99.50th=[ 359], 99.90th=[ 384], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 22, max= 191, per=25.22%, avg=87.50, stdev=32.70, samples=143 iops : min= 1, max= 11, avg= 4.73, stdev= 2.11, samples=143 lat (msec) : 10=1.43%, 20=13.93%, 50=22.01%, 100=17.71%, 250=42.32% lat (msec) : 500=2.60% cpu : usr=0.03%, sys=1.08%, ctx=1190, 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=144870: Tue Aug 25 19:36:20 2026 read: IOPS=4, BW=79.2KiB/s (81.1kB/s)(5744KiB/72545msec) clat (msec): min=6, max=290, avg=38.61, stdev=35.70 lat (msec): min=6, max=290, avg=38.61, stdev=35.70 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 21], 40.00th=[ 24], 50.00th=[ 27], 60.00th=[ 32], | 70.00th=[ 40], 80.00th=[ 52], 90.00th=[ 80], 95.00th=[ 113], | 99.00th=[ 180], 99.50th=[ 268], 99.90th=[ 292], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 22, max= 384, per=27.19%, avg=89.72, stdev=63.57, samples=125 iops : min= 1, max= 24, avg= 4.90, stdev= 4.04, samples=125 write: IOPS=5, BW=90.2KiB/s (92.4kB/s)(6544KiB/72545msec); 0 zone resets clat (msec): min=37, max=462, avg=142.66, stdev=58.71 lat (msec): min=37, max=462, avg=142.66, stdev=58.71 clat percentiles (msec): | 1.00th=[ 57], 5.00th=[ 72], 10.00th=[ 85], 20.00th=[ 96], | 30.00th=[ 108], 40.00th=[ 118], 50.00th=[ 132], 60.00th=[ 146], | 70.00th=[ 161], 80.00th=[ 180], 90.00th=[ 215], 95.00th=[ 255], | 99.00th=[ 351], 99.50th=[ 384], 99.90th=[ 464], 99.95th=[ 464], | 99.99th=[ 464] bw ( KiB/s): min= 22, max= 191, per=26.23%, avg=91.01, stdev=34.00, samples=141 iops : min= 1, max= 11, avg= 4.96, stdev= 2.19, samples=141 lat (msec) : 10=1.69%, 20=11.20%, 50=24.74%, 100=18.88%, 250=40.23% lat (msec) : 500=3.26% cpu : usr=0.03%, sys=1.10%, ctx=1286, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144871: Tue Aug 25 19:36:20 2026 read: IOPS=5, BW=90.0KiB/s (93.1kB/s)(6256KiB/68772msec) clat (msec): min=7, max=327, avg=37.19, stdev=34.89 lat (msec): min=7, max=327, avg=37.20, stdev=34.89 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 24], 50.00th=[ 27], 60.00th=[ 31], | 70.00th=[ 40], 80.00th=[ 49], 90.00th=[ 72], 95.00th=[ 97], | 99.00th=[ 186], 99.50th=[ 275], 99.90th=[ 330], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 30, max= 318, per=30.19%, avg=99.63, stdev=66.14, samples=124 iops : min= 1, max= 19, avg= 5.52, stdev= 4.19, samples=124 write: IOPS=5, BW=87.7KiB/s (89.8kB/s)(6032KiB/68772msec); 0 zone resets clat (msec): min=38, max=367, avg=143.59, stdev=56.56 lat (msec): min=38, max=367, avg=143.59, stdev=56.56 clat percentiles (msec): | 1.00th=[ 59], 5.00th=[ 75], 10.00th=[ 85], 20.00th=[ 96], | 30.00th=[ 110], 40.00th=[ 121], 50.00th=[ 130], 60.00th=[ 146], | 70.00th=[ 161], 80.00th=[ 188], 90.00th=[ 220], 95.00th=[ 257], | 99.00th=[ 309], 99.50th=[ 355], 99.90th=[ 368], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 31, max= 191, per=25.12%, avg=87.18, stdev=34.45, samples=135 iops : min= 1, max= 11, avg= 4.73, stdev= 2.27, samples=135 lat (msec) : 10=1.56%, 20=13.02%, 50=27.21%, 100=18.75%, 250=36.20% lat (msec) : 500=3.26% cpu : usr=0.05%, sys=1.12%, ctx=1337, 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=144872: Tue Aug 25 19:36:20 2026 read: IOPS=5, BW=84.7KiB/s (86.7kB/s)(6032KiB/71212msec) clat (msec): min=5, max=279, avg=36.95, stdev=33.81 lat (msec): min=5, max=279, avg=36.95, stdev=33.81 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 17], | 30.00th=[ 20], 40.00th=[ 23], 50.00th=[ 27], 60.00th=[ 31], | 70.00th=[ 37], 80.00th=[ 50], 90.00th=[ 70], 95.00th=[ 95], | 99.00th=[ 197], 99.50th=[ 257], 99.90th=[ 279], 99.95th=[ 279], | 99.99th=[ 279] bw ( KiB/s): min= 30, max= 351, per=28.69%, avg=94.67, stdev=59.91, samples=124 iops : min= 1, max= 21, avg= 5.19, stdev= 3.82, samples=124 write: IOPS=5, BW=87.8KiB/s (89.0kB/s)(6256KiB/71212msec); 0 zone resets clat (msec): min=49, max=419, avg=145.60, stdev=57.66 lat (msec): min=49, max=419, avg=145.60, stdev=57.66 clat percentiles (msec): | 1.00th=[ 57], 5.00th=[ 72], 10.00th=[ 81], 20.00th=[ 96], | 30.00th=[ 111], 40.00th=[ 123], 50.00th=[ 136], 60.00th=[ 150], | 70.00th=[ 167], 80.00th=[ 188], 90.00th=[ 224], 95.00th=[ 264], | 99.00th=[ 321], 99.50th=[ 351], 99.90th=[ 422], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 31, max= 160, per=25.78%, avg=89.45, stdev=33.11, samples=137 iops : min= 1, max= 10, avg= 4.85, stdev= 2.14, samples=137 lat (msec) : 10=1.43%, 20=14.71%, 50=23.57%, 100=18.75%, 250=38.15% lat (msec) : 500=3.39% cpu : usr=0.03%, sys=1.16%, ctx=1241, 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=330KiB/s (338kB/s), 79.2KiB/s-90.0KiB/s (81.1kB/s-93.1kB/s), io=23.4MiB (24.5MB), run=68772-72545msec WRITE: bw=347KiB/s (356kB/s), 87.7KiB/s-90.2KiB/s (89.8kB/s-92.4kB/s), io=24.6MiB (25.8MB), run=68772-72545msec 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=144895: Tue Aug 25 19:36:35 2026 read: IOPS=1, BW=1726KiB/s (1767kB/s)(7168KiB/4153msec) clat (msec): min=73, max=434, avg=213.87, stdev=145.98 lat (msec): min=73, max=434, avg=213.87, stdev=145.98 clat percentiles (msec): | 1.00th=[ 74], 5.00th=[ 74], 10.00th=[ 74], 20.00th=[ 88], | 30.00th=[ 124], 40.00th=[ 124], 50.00th=[ 131], 60.00th=[ 279], | 70.00th=[ 279], 80.00th=[ 372], 90.00th=[ 435], 95.00th=[ 435], | 99.00th=[ 435], 99.50th=[ 435], 99.90th=[ 435], 99.95th=[ 435], | 99.99th=[ 435] bw ( KiB/s): min= 1980, max= 4284, per=60.38%, avg=2579.50, stdev=1136.59, samples=4 iops : min= 1, max= 4, avg= 1.75, stdev= 1.50, samples=4 write: IOPS=1, BW=1233KiB/s (1262kB/s)(5120KiB/4153msec); 0 zone resets clat (msec): min=223, max=1021, avg=511.48, stdev=354.20 lat (msec): min=223, max=1021, avg=511.81, stdev=354.38 clat percentiles (msec): | 1.00th=[ 224], 5.00th=[ 224], 10.00th=[ 224], 20.00th=[ 224], | 30.00th=[ 236], 40.00th=[ 236], 50.00th=[ 338], 60.00th=[ 338], | 70.00th=[ 743], 80.00th=[ 743], 90.00th=[ 1020], 95.00th=[ 1020], | 99.00th=[ 1020], 99.50th=[ 1020], 99.90th=[ 1020], 99.95th=[ 1020], | 99.99th=[ 1020] bw ( KiB/s): min= 1428, max= 3778, per=39.38%, avg=2354.67, stdev=1251.25, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 100=16.67%, 250=33.33%, 500=33.33%, 750=8.33%, 2000=8.33% cpu : usr=0.00%, sys=2.58%, ctx=44, 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=144896: Tue Aug 25 19:36:35 2026 read: IOPS=0, BW=427KiB/s (437kB/s)(2048KiB/4794msec) clat (msec): min=111, max=142, avg=127.24, stdev=22.18 lat (msec): min=111, max=142, avg=127.24, stdev=22.18 clat percentiles (msec): | 1.00th=[ 112], 5.00th=[ 112], 10.00th=[ 112], 20.00th=[ 112], | 30.00th=[ 112], 40.00th=[ 112], 50.00th=[ 112], 60.00th=[ 144], | 70.00th=[ 144], 80.00th=[ 144], 90.00th=[ 144], 95.00th=[ 144], | 99.00th=[ 144], 99.50th=[ 144], 99.90th=[ 144], 99.95th=[ 144], | 99.99th=[ 144] bw ( KiB/s): min= 1404, max= 1889, per=38.54%, avg=1646.50, stdev=342.95, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2136KiB/s (2187kB/s)(10.0MiB/4794msec); 0 zone resets clat (msec): min=177, max=789, avg=448.80, stdev=211.46 lat (msec): min=178, max=790, avg=449.01, stdev=211.61 clat percentiles (msec): | 1.00th=[ 178], 5.00th=[ 178], 10.00th=[ 178], 20.00th=[ 188], | 30.00th=[ 330], 40.00th=[ 342], 50.00th=[ 376], 60.00th=[ 460], | 70.00th=[ 527], 80.00th=[ 535], 90.00th=[ 768], 95.00th=[ 793], | 99.00th=[ 793], 99.50th=[ 793], 99.90th=[ 793], 99.95th=[ 793], | 99.99th=[ 793] bw ( KiB/s): min= 1858, max= 2809, per=34.92%, avg=2088.14, stdev=325.47, samples=7 iops : min= 1, max= 2, avg= 1.14, stdev= 0.38, samples=7 lat (msec) : 250=33.33%, 500=33.33%, 750=16.67%, 1000=16.67% cpu : usr=0.02%, sys=4.40%, ctx=89, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144897: Tue Aug 25 19:36:35 2026 read: IOPS=1, BW=1296KiB/s (1327kB/s)(6144KiB/4741msec) clat (msec): min=107, max=611, avg=312.39, stdev=203.83 lat (msec): min=107, max=611, avg=312.39, stdev=203.83 clat percentiles (msec): | 1.00th=[ 108], 5.00th=[ 108], 10.00th=[ 108], 20.00th=[ 169], | 30.00th=[ 169], 40.00th=[ 176], 50.00th=[ 176], 60.00th=[ 305], | 70.00th=[ 506], 80.00th=[ 506], 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= 1980, max= 3778, per=57.47%, avg=2455.00, stdev=882.35, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1296KiB/s (1327kB/s)(6144KiB/4741msec); 0 zone resets clat (msec): min=199, max=1141, avg=459.58, stdev=349.48 lat (msec): min=200, max=1142, avg=459.78, stdev=349.44 clat percentiles (msec): | 1.00th=[ 201], 5.00th=[ 201], 10.00th=[ 201], 20.00th=[ 222], | 30.00th=[ 222], 40.00th=[ 359], 50.00th=[ 359], 60.00th=[ 359], | 70.00th=[ 481], 80.00th=[ 481], 90.00th=[ 1150], 95.00th=[ 1150], | 99.00th=[ 1150], 99.50th=[ 1150], 99.90th=[ 1150], 99.95th=[ 1150], | 99.99th=[ 1150] bw ( KiB/s): min= 1889, max= 2813, per=36.61%, avg=2189.00, stdev=421.17, samples=4 iops : min= 1, max= 2, avg= 1.25, stdev= 0.50, samples=4 lat (msec) : 250=41.67%, 500=33.33%, 750=16.67%, 2000=8.33% cpu : usr=0.06%, sys=3.69%, ctx=77, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144898: Tue Aug 25 19:36:35 2026 read: IOPS=1, BW=1152KiB/s (1180kB/s)(5120KiB/4445msec) clat (msec): min=104, max=729, avg=372.48, stdev=269.65 lat (msec): min=104, max=729, avg=372.48, stdev=269.65 clat percentiles (msec): | 1.00th=[ 105], 5.00th=[ 105], 10.00th=[ 105], 20.00th=[ 105], | 30.00th=[ 106], 40.00th=[ 106], 50.00th=[ 414], 60.00th=[ 414], | 70.00th=[ 510], 80.00th=[ 510], 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= 1889, max= 4087, per=62.35%, avg=2663.67, stdev=1234.25, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=1, BW=1613KiB/s (1651kB/s)(7168KiB/4445msec); 0 zone resets clat (msec): min=225, max=739, avg=354.98, stdev=185.14 lat (msec): min=225, max=739, avg=355.19, stdev=185.10 clat percentiles (msec): | 1.00th=[ 226], 5.00th=[ 226], 10.00th=[ 226], 20.00th=[ 251], | 30.00th=[ 255], 40.00th=[ 255], 50.00th=[ 268], 60.00th=[ 296], | 70.00th=[ 296], 80.00th=[ 451], 90.00th=[ 743], 95.00th=[ 743], | 99.00th=[ 743], 99.50th=[ 743], 99.90th=[ 743], 99.95th=[ 743], | 99.99th=[ 743] bw ( KiB/s): min= 1980, max= 2913, per=36.69%, avg=2194.00, stdev=402.51, samples=5 iops : min= 1, max= 2, avg= 1.20, stdev= 0.45, samples=5 lat (msec) : 250=25.00%, 500=50.00%, 750=25.00% cpu : usr=0.07%, sys=3.60%, ctx=68, 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=4272KiB/s (4375kB/s), 427KiB/s-1726KiB/s (437kB/s-1767kB/s), io=20.0MiB (20.0MB), run=4153-4794msec WRITE: bw=5981KiB/s (6124kB/s), 1233KiB/s-2136KiB/s (1262kB/s-2187kB/s), io=28.0MiB (29.4MB), run=4153-4794msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144900: Tue Aug 25 19:36:35 2026 read: IOPS=1, BW=1951KiB/s (1998kB/s)(7168KiB/3674msec) clat (usec): min=906, max=379615, avg=192282.56, stdev=145583.56 lat (usec): min=907, max=379617, avg=192284.02, stdev=145583.46 clat percentiles (usec): | 1.00th=[ 906], 5.00th=[ 906], 10.00th=[ 906], 20.00th=[ 1352], | 30.00th=[183501], 40.00th=[183501], 50.00th=[221250], 60.00th=[242222], | 70.00th=[242222], 80.00th=[316670], 90.00th=[379585], 95.00th=[379585], | 99.00th=[379585], 99.50th=[379585], 99.90th=[379585], 99.95th=[379585], | 99.99th=[379585] bw ( KiB/s): min= 2007, max= 4079, per=66.09%, avg=3042.00, stdev=1174.54, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 write: IOPS=1, BW=1394KiB/s (1427kB/s)(5120KiB/3674msec); 0 zone resets clat (msec): min=279, max=810, avg=464.91, stdev=206.31 lat (msec): min=279, max=812, avg=465.29, stdev=206.95 clat percentiles (msec): | 1.00th=[ 279], 5.00th=[ 279], 10.00th=[ 279], 20.00th=[ 279], | 30.00th=[ 376], 40.00th=[ 376], 50.00th=[ 376], 60.00th=[ 376], | 70.00th=[ 485], 80.00th=[ 485], 90.00th=[ 810], 95.00th=[ 810], | 99.00th=[ 810], 99.50th=[ 810], 99.90th=[ 810], 99.95th=[ 810], | 99.99th=[ 810] bw ( KiB/s): min= 1988, max= 2043, per=31.38%, avg=2022.25, stdev=25.13, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 lat (usec) : 1000=8.33% lat (msec) : 2=8.33%, 250=25.00%, 500=50.00%, 1000=8.33% cpu : usr=0.08%, sys=14.10%, ctx=221, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144901: Tue Aug 25 19:36:35 2026 read: IOPS=0, BW=460KiB/s (471kB/s)(2048KiB/4449msec) clat (msec): min=124, max=658, avg=391.17, stdev=377.45 lat (msec): min=124, max=658, avg=391.17, stdev=377.45 clat percentiles (msec): | 1.00th=[ 125], 5.00th=[ 125], 10.00th=[ 125], 20.00th=[ 125], | 30.00th=[ 125], 40.00th=[ 125], 50.00th=[ 125], 60.00th=[ 659], | 70.00th=[ 659], 80.00th=[ 659], 90.00th=[ 659], 95.00th=[ 659], | 99.00th=[ 659], 99.50th=[ 659], 99.90th=[ 659], 99.95th=[ 659], | 99.99th=[ 659] bw ( KiB/s): min= 2039, max= 2039, per=44.30%, avg=2039.00, stdev= 0.00, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2302KiB/s (2357kB/s)(10.0MiB/4449msec); 0 zone resets clat (msec): min=150, max=637, avg=366.15, stdev=193.97 lat (msec): min=150, max=637, avg=366.37, stdev=194.13 clat percentiles (msec): | 1.00th=[ 150], 5.00th=[ 150], 10.00th=[ 150], 20.00th=[ 182], | 30.00th=[ 184], 40.00th=[ 205], 50.00th=[ 300], 60.00th=[ 368], | 70.00th=[ 426], 80.00th=[ 609], 90.00th=[ 609], 95.00th=[ 634], | 99.00th=[ 634], 99.50th=[ 634], 99.90th=[ 634], 99.95th=[ 634], | 99.99th=[ 634] bw ( KiB/s): min= 2031, max= 6059, per=55.15%, avg=3554.00, stdev=1929.93, samples=4 iops : min= 1, max= 5, avg= 2.50, stdev= 1.91, samples=4 lat (msec) : 250=41.67%, 500=25.00%, 750=33.33% cpu : usr=0.00%, sys=12.97%, ctx=168, 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=144902: Tue Aug 25 19:36:35 2026 read: IOPS=2, BW=2194KiB/s (2246kB/s)(6144KiB/2801msec) clat (usec): min=615, max=414078, avg=158486.21, stdev=155525.73 lat (usec): min=616, max=414080, avg=158487.64, stdev=155525.86 clat percentiles (usec): | 1.00th=[ 619], 5.00th=[ 619], 10.00th=[ 619], 20.00th=[ 30540], | 30.00th=[ 30540], 40.00th=[ 90702], 50.00th=[ 90702], 60.00th=[158335], | 70.00th=[256902], 80.00th=[256902], 90.00th=[413139], 95.00th=[413139], | 99.00th=[413139], 99.50th=[413139], 99.90th=[413139], 99.95th=[413139], | 99.99th=[413139] bw ( KiB/s): min= 1988, max= 4063, per=73.07%, avg=3363.33, stdev=1191.13, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=2, BW=2194KiB/s (2246kB/s)(6144KiB/2801msec); 0 zone resets clat (msec): min=177, max=577, avg=307.47, stdev=139.12 lat (msec): min=178, max=577, avg=307.56, stdev=139.10 clat percentiles (msec): | 1.00th=[ 178], 5.00th=[ 178], 10.00th=[ 178], 20.00th=[ 245], | 30.00th=[ 245], 40.00th=[ 253], 50.00th=[ 253], 60.00th=[ 292], | 70.00th=[ 300], 80.00th=[ 300], 90.00th=[ 575], 95.00th=[ 575], | 99.00th=[ 575], 99.50th=[ 575], 99.90th=[ 575], 99.95th=[ 575], | 99.99th=[ 575] bw ( KiB/s): min= 1988, max= 3961, per=38.79%, avg=2499.75, stdev=974.34, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (usec) : 750=8.33% lat (msec) : 50=8.33%, 100=8.33%, 250=25.00%, 500=41.67%, 750=8.33% cpu : usr=0.04%, sys=17.00%, ctx=220, 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=144903: Tue Aug 25 19:36:35 2026 read: IOPS=1, BW=1244KiB/s (1274kB/s)(5120KiB/4116msec) clat (usec): min=598, max=421597, avg=145123.52, stdev=201392.73 lat (usec): min=599, max=421598, avg=145124.91, stdev=201392.79 clat percentiles (usec): | 1.00th=[ 603], 5.00th=[ 603], 10.00th=[ 603], 20.00th=[ 603], | 30.00th=[ 1270], 40.00th=[ 1270], 50.00th=[ 2507], 60.00th=[ 2507], | 70.00th=[299893], 80.00th=[299893], 90.00th=[421528], 95.00th=[421528], | 99.00th=[421528], 99.50th=[421528], 99.90th=[421528], 99.95th=[421528], | 99.99th=[421528] bw ( KiB/s): min= 8159, max= 8159, per=100.00%, avg=8159.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=1, BW=1741KiB/s (1783kB/s)(7168KiB/4116msec); 0 zone resets clat (msec): min=247, max=954, avg=482.76, stdev=236.72 lat (msec): min=248, max=954, avg=484.01, stdev=236.79 clat percentiles (msec): | 1.00th=[ 249], 5.00th=[ 249], 10.00th=[ 249], 20.00th=[ 305], | 30.00th=[ 347], 40.00th=[ 347], 50.00th=[ 472], 60.00th=[ 489], | 70.00th=[ 489], 80.00th=[ 567], 90.00th=[ 953], 95.00th=[ 953], | 99.00th=[ 953], 99.50th=[ 953], 99.90th=[ 953], 99.95th=[ 953], | 99.99th=[ 953] bw ( KiB/s): min= 1899, max= 2043, per=30.84%, avg=1987.17, stdev=56.17, samples=6 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=6 lat (usec) : 750=8.33% lat (msec) : 2=8.33%, 4=8.33%, 250=8.33%, 500=50.00%, 750=8.33% lat (msec) : 1000=8.33% cpu : usr=0.02%, sys=11.01%, ctx=131, 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=4603KiB/s (4714kB/s), 460KiB/s-2194KiB/s (471kB/s-2246kB/s), io=20.0MiB (20.0MB), run=2801-4449msec WRITE: bw=6445KiB/s (6599kB/s), 1394KiB/s-2302KiB/s (1427kB/s-2357kB/s), io=28.0MiB (29.4MB), run=2801-4449msec 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=144911: Tue Aug 25 19:36:54 2026 read: IOPS=0, BW=2048KiB/s (2098kB/s)(12.0MiB/5999msec) clat (msec): min=961, max=3786, avg=1937.26, stdev=1602.30 lat (msec): min=961, max=3786, avg=1937.26, stdev=1602.30 clat percentiles (msec): | 1.00th=[ 961], 5.00th=[ 961], 10.00th=[ 961], 20.00th=[ 961], | 30.00th=[ 961], 40.00th=[ 1062], 50.00th=[ 1062], 60.00th=[ 1062], | 70.00th=[ 3775], 80.00th=[ 3775], 90.00th=[ 3775], 95.00th=[ 3775], | 99.00th=[ 3775], 99.50th=[ 3775], 99.90th=[ 3775], 99.95th=[ 3775], | 99.99th=[ 3775] bw ( KiB/s): min= 7876, max= 8110, per=100.00%, avg=7993.00, stdev=165.46, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.18%, sys=7.20%, ctx=673, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144912: Tue Aug 25 19:36:54 2026 read: IOPS=0, BW=724KiB/s (741kB/s)(4096KiB/5660msec) clat (nsec): min=3803.9M, max=3803.9M, avg=3803890938.00, stdev= 0.00 lat (nsec): min=3803.9M, max=3803.9M, avg=3803893526.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 3809], 5.00th=[ 3809], 10.00th=[ 3809], 20.00th=[ 3809], | 30.00th=[ 3809], 40.00th=[ 3809], 50.00th=[ 3809], 60.00th=[ 3809], | 70.00th=[ 3809], 80.00th=[ 3809], 90.00th=[ 3809], 95.00th=[ 3809], | 99.00th=[ 3809], 99.50th=[ 3809], 99.90th=[ 3809], 99.95th=[ 3809], | 99.99th=[ 3809] bw ( KiB/s): min= 8110, max= 8110, per=100.00%, avg=8110.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=1447KiB/s (1482kB/s)(8192KiB/5660msec); 0 zone resets clat (msec): min=400, max=1297, avg=848.92, stdev=634.14 lat (msec): min=401, max=1297, avg=849.60, stdev=633.75 clat percentiles (msec): | 1.00th=[ 401], 5.00th=[ 401], 10.00th=[ 401], 20.00th=[ 401], | 30.00th=[ 401], 40.00th=[ 401], 50.00th=[ 401], 60.00th=[ 1301], | 70.00th=[ 1301], 80.00th=[ 1301], 90.00th=[ 1301], 95.00th=[ 1301], | 99.00th=[ 1301], 99.50th=[ 1301], 99.90th=[ 1301], 99.95th=[ 1301], | 99.99th=[ 1301] bw ( KiB/s): min= 8159, max= 8159, per=100.00%, avg=8159.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.19%, sys=3.76%, ctx=530, 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=144913: Tue Aug 25 19:36:54 2026 write: IOPS=0, BW=1734KiB/s (1776kB/s)(12.0MiB/7086msec); 0 zone resets clat (msec): min=365, max=4169, avg=2307.82, stdev=1903.59 lat (msec): min=365, max=4170, avg=2308.31, stdev=1903.53 clat percentiles (msec): | 1.00th=[ 368], 5.00th=[ 368], 10.00th=[ 368], 20.00th=[ 368], | 30.00th=[ 368], 40.00th=[ 2400], 50.00th=[ 2400], 60.00th=[ 2400], | 70.00th=[ 4178], 80.00th=[ 4178], 90.00th=[ 4178], 95.00th=[ 4178], | 99.00th=[ 4178], 99.50th=[ 4178], 99.90th=[ 4178], 99.95th=[ 4178], | 99.99th=[ 4178] bw ( KiB/s): min= 8000, max= 8159, per=100.00%, avg=8079.50, stdev=112.43, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, >=2000=66.67% cpu : usr=0.08%, sys=2.57%, ctx=62, 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=144914: Tue Aug 25 19:36:54 2026 write: IOPS=0, BW=2163KiB/s (2215kB/s)(12.0MiB/5680msec); 0 zone resets clat (msec): min=407, max=4547, avg=1848.21, stdev=2339.44 lat (msec): min=408, max=4547, avg=1848.65, stdev=2339.44 clat percentiles (msec): | 1.00th=[ 409], 5.00th=[ 409], 10.00th=[ 409], 20.00th=[ 409], | 30.00th=[ 409], 40.00th=[ 592], 50.00th=[ 592], 60.00th=[ 592], | 70.00th=[ 4530], 80.00th=[ 4530], 90.00th=[ 4530], 95.00th=[ 4530], | 99.00th=[ 4530], 99.50th=[ 4530], 99.90th=[ 4530], 99.95th=[ 4530], | 99.99th=[ 4530] bw ( KiB/s): min=16094, max=16094, per=100.00%, avg=16094.00, stdev= 0.00, samples=1 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 750=33.33%, >=2000=33.33% cpu : usr=0.12%, sys=2.11%, ctx=56, 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=2731KiB/s (2797kB/s), 724KiB/s-2048KiB/s (741kB/s-2098kB/s), io=16.0MiB (16.8MB), run=5660-5999msec WRITE: bw=4624KiB/s (4735kB/s), 1447KiB/s-2163KiB/s (1482kB/s-2215kB/s), io=32.0MiB (33.6MB), run=5660-7086msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144915: Tue Aug 25 19:36:54 2026 read: IOPS=0, BW=1815KiB/s (1859kB/s)(12.0MiB/6769msec) clat (msec): min=343, max=4774, avg=2248.50, stdev=2280.03 lat (msec): min=343, max=4774, avg=2248.50, stdev=2280.03 clat percentiles (msec): | 1.00th=[ 342], 5.00th=[ 342], 10.00th=[ 342], 20.00th=[ 342], | 30.00th=[ 342], 40.00th=[ 1620], 50.00th=[ 1620], 60.00th=[ 1620], | 70.00th=[ 4799], 80.00th=[ 4799], 90.00th=[ 4799], 95.00th=[ 4799], | 99.00th=[ 4799], 99.50th=[ 4799], 99.90th=[ 4799], 99.95th=[ 4799], | 99.99th=[ 4799] bw ( KiB/s): min= 8094, max= 8175, per=100.00%, avg=8134.50, stdev=57.28, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.07%, sys=1.45%, ctx=34, 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=144916: Tue Aug 25 19:36:54 2026 read: IOPS=0, BW=612KiB/s (627kB/s)(4096KiB/6693msec) clat (nsec): min=4377.6M, max=4377.6M, avg=4377583760.00, stdev= 0.00 lat (nsec): min=4377.6M, max=4377.6M, avg=4377586244.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 4396], 5.00th=[ 4396], 10.00th=[ 4396], 20.00th=[ 4396], | 30.00th=[ 4396], 40.00th=[ 4396], 50.00th=[ 4396], 60.00th=[ 4396], | 70.00th=[ 4396], 80.00th=[ 4396], 90.00th=[ 4396], 95.00th=[ 4396], | 99.00th=[ 4396], 99.50th=[ 4396], 99.90th=[ 4396], 99.95th=[ 4396], | 99.99th=[ 4396] bw ( KiB/s): min= 8062, max= 8062, per=100.00%, avg=8062.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=1224KiB/s (1253kB/s)(8192KiB/6693msec); 0 zone resets clat (msec): min=952, max=1324, avg=1138.53, stdev=263.53 lat (msec): min=952, max=1327, avg=1140.06, stdev=265.42 clat percentiles (msec): | 1.00th=[ 953], 5.00th=[ 953], 10.00th=[ 953], 20.00th=[ 953], | 30.00th=[ 953], 40.00th=[ 953], 50.00th=[ 953], 60.00th=[ 1318], | 70.00th=[ 1318], 80.00th=[ 1318], 90.00th=[ 1318], 95.00th=[ 1318], | 99.00th=[ 1318], 99.50th=[ 1318], 99.90th=[ 1318], 99.95th=[ 1318], | 99.99th=[ 1318] bw ( KiB/s): min= 8175, max= 8175, per=100.00%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 1000=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.09%, sys=1.61%, ctx=51, 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=144917: Tue Aug 25 19:36:54 2026 write: IOPS=0, BW=1991KiB/s (2039kB/s)(12.0MiB/6171msec); 0 zone resets clat (msec): min=321, max=4279, avg=2054.34, stdev=2024.78 lat (msec): min=321, max=4280, avg=2055.00, stdev=2025.14 clat percentiles (msec): | 1.00th=[ 321], 5.00th=[ 321], 10.00th=[ 321], 20.00th=[ 321], | 30.00th=[ 321], 40.00th=[ 1569], 50.00th=[ 1569], 60.00th=[ 1569], | 70.00th=[ 4279], 80.00th=[ 4279], 90.00th=[ 4279], 95.00th=[ 4279], | 99.00th=[ 4279], 99.50th=[ 4279], 99.90th=[ 4279], 99.95th=[ 4279], | 99.99th=[ 4279] bw ( KiB/s): min= 8031, max= 8159, per=100.00%, avg=8095.00, stdev=90.51, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=1.67%, ctx=41, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144918: Tue Aug 25 19:36:54 2026 write: IOPS=0, BW=2156KiB/s (2208kB/s)(12.0MiB/5700msec); 0 zone resets clat (msec): min=314, max=4830, avg=1897.91, stdev=2542.16 lat (msec): min=317, max=4830, avg=1899.19, stdev=2541.36 clat percentiles (msec): | 1.00th=[ 313], 5.00th=[ 313], 10.00th=[ 313], 20.00th=[ 313], | 30.00th=[ 313], 40.00th=[ 550], 50.00th=[ 550], 60.00th=[ 550], | 70.00th=[ 4799], 80.00th=[ 4799], 90.00th=[ 4799], 95.00th=[ 4799], | 99.00th=[ 4799], 99.50th=[ 4799], 99.90th=[ 4799], 99.95th=[ 4799], | 99.99th=[ 4799] bw ( KiB/s): min= 5885, max= 8175, per=100.00%, avg=7030.00, stdev=1619.27, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 750=33.33%, >=2000=33.33% cpu : usr=0.16%, sys=1.75%, ctx=37, 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=2420KiB/s (2479kB/s), 612KiB/s-1815KiB/s (627kB/s-1859kB/s), io=16.0MiB (16.8MB), run=6693-6769msec WRITE: bw=4896KiB/s (5013kB/s), 1224KiB/s-2156KiB/s (1253kB/s-2208kB/s), io=32.0MiB (33.6MB), run=5700-6693msec