== sanity test 398b: DIO and buffer IO race ============== 21:09:00 (1786410540) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 5.25673 s, 9.6 MB/s mix direct rw 4096 by fio with 4 jobs... mix buffer rw 4096 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=144255: Mon Aug 10 21:11:08 2026 read: IOPS=13, BW=53.6KiB/s (54.9kB/s)(5992KiB/111820msec) clat (usec): min=32, max=1041.5k, avg=35788.33, stdev=35766.90 lat (usec): min=32, max=1041.5k, avg=35789.47, stdev=35766.94 clat percentiles (usec): | 1.00th=[ 48], 5.00th=[ 58], 10.00th=[ 8291], | 20.00th=[ 17171], 30.00th=[ 21365], 40.00th=[ 25822], | 50.00th=[ 30540], 60.00th=[ 36439], 70.00th=[ 44303], | 80.00th=[ 52167], 90.00th=[ 65274], 95.00th=[ 80217], | 99.00th=[ 114820], 99.50th=[ 137364], 99.90th=[ 210764], | 99.95th=[1044382], 99.99th=[1044382] bw ( KiB/s): min= 15, max= 119, per=25.02%, avg=53.54, stdev=20.57, samples=219 iops : min= 3, max= 29, avg=12.75, stdev= 5.16, samples=219 write: IOPS=14, BW=56.3KiB/s (57.7kB/s)(6296KiB/111820msec); 0 zone resets clat (usec): min=931, max=299080, avg=36616.33, stdev=36503.42 lat (usec): min=933, max=299082, avg=36625.22, stdev=36499.21 clat percentiles (usec): | 1.00th=[ 1205], 5.00th=[ 1336], 10.00th=[ 1696], 20.00th=[ 4555], | 30.00th=[ 9765], 40.00th=[ 19530], 50.00th=[ 27657], 60.00th=[ 37487], | 70.00th=[ 47449], 80.00th=[ 61080], 90.00th=[ 84411], 95.00th=[103285], | 99.00th=[160433], 99.50th=[177210], 99.90th=[254804], 99.95th=[299893], | 99.99th=[299893] bw ( KiB/s): min= 7, max= 126, per=25.21%, avg=56.48, stdev=21.35, samples=218 iops : min= 1, max= 31, avg=13.49, stdev= 5.39, samples=218 lat (usec) : 50=0.72%, 100=3.45%, 250=0.16%, 500=0.03%, 750=0.16% lat (usec) : 1000=0.07% lat (msec) : 2=5.96%, 4=3.39%, 10=6.77%, 20=13.05%, 50=41.02% lat (msec) : 100=21.35%, 250=3.74%, 500=0.10%, 2000=0.03% cpu : usr=0.07%, sys=5.72%, ctx=6556, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144256: Mon Aug 10 21:11:08 2026 read: IOPS=13, BW=54.2KiB/s (55.5kB/s)(5940KiB/109501msec) clat (usec): min=28, max=189328, avg=35644.11, stdev=24733.88 lat (usec): min=28, max=189329, avg=35646.97, stdev=24733.70 clat percentiles (usec): | 1.00th=[ 46], 5.00th=[ 58], 10.00th=[ 1287], 20.00th=[ 16909], | 30.00th=[ 22152], 40.00th=[ 27395], 50.00th=[ 32113], 60.00th=[ 37487], | 70.00th=[ 44303], 80.00th=[ 52167], 90.00th=[ 65799], 95.00th=[ 79168], | 99.00th=[120062], 99.50th=[143655], 99.90th=[170918], 99.95th=[189793], | 99.99th=[189793] bw ( KiB/s): min= 7, max= 118, per=25.26%, avg=54.06, stdev=22.67, samples=215 iops : min= 1, max= 29, avg=12.88, stdev= 5.74, samples=215 write: IOPS=14, BW=57.0KiB/s (59.4kB/s)(6348KiB/109501msec); 0 zone resets clat (usec): min=899, max=1026.9k, avg=35307.07, stdev=43371.56 lat (usec): min=901, max=1026.9k, avg=35309.23, stdev=43371.56 clat percentiles (usec): | 1.00th=[ 1188], 5.00th=[ 1336], 10.00th=[ 1598], | 20.00th=[ 4113], 30.00th=[ 8455], 40.00th=[ 16450], | 50.00th=[ 25560], 60.00th=[ 34866], 70.00th=[ 45351], | 80.00th=[ 60031], 90.00th=[ 81265], 95.00th=[ 102237], | 99.00th=[ 145753], 99.50th=[ 162530], 99.90th=[ 333448], | 99.95th=[1027605], 99.99th=[1027605] bw ( KiB/s): min= 15, max= 112, per=25.86%, avg=57.93, stdev=22.01, samples=214 iops : min= 3, max= 28, avg=13.85, stdev= 5.54, samples=214 lat (usec) : 50=0.81%, 100=3.81%, 250=0.10%, 500=0.07%, 1000=0.16% lat (msec) : 2=6.09%, 4=4.10%, 10=7.06%, 20=12.76%, 50=40.76% lat (msec) : 100=20.70%, 250=3.42%, 500=0.13%, 2000=0.03% cpu : usr=0.10%, sys=5.86%, ctx=6459, 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=144257: Mon Aug 10 21:11:08 2026 read: IOPS=13, BW=54.1KiB/s (55.4kB/s)(6028KiB/111444msec) clat (usec): min=32, max=212019, avg=35364.31, stdev=25831.08 lat (usec): min=32, max=212020, avg=35365.81, stdev=25831.05 clat percentiles (usec): | 1.00th=[ 45], 5.00th=[ 57], 10.00th=[ 4817], 20.00th=[ 17695], | 30.00th=[ 21627], 40.00th=[ 25297], 50.00th=[ 30802], 60.00th=[ 35914], | 70.00th=[ 42730], 80.00th=[ 51643], 90.00th=[ 65799], 95.00th=[ 80217], | 99.00th=[124257], 99.50th=[137364], 99.90th=[206570], 99.95th=[212861], | 99.99th=[212861] bw ( KiB/s): min= 7, max= 126, per=25.42%, avg=54.41, stdev=22.72, samples=217 iops : min= 1, max= 31, avg=12.97, stdev= 5.74, samples=217 write: IOPS=14, BW=56.2KiB/s (57.5kB/s)(6260KiB/111444msec); 0 zone resets clat (usec): min=702, max=918358, avg=36795.67, stdev=44175.83 lat (usec): min=703, max=918363, avg=36801.81, stdev=44177.06 clat percentiles (usec): | 1.00th=[ 1205], 5.00th=[ 1319], 10.00th=[ 1582], 20.00th=[ 3949], | 30.00th=[ 8979], 40.00th=[ 18482], 50.00th=[ 27395], 60.00th=[ 36963], | 70.00th=[ 46400], 80.00th=[ 60556], 90.00th=[ 84411], 95.00th=[105382], | 99.00th=[166724], 99.50th=[208667], 99.90th=[404751], 99.95th=[918553], | 99.99th=[918553] bw ( KiB/s): min= 7, max= 118, per=25.08%, avg=56.17, stdev=21.67, samples=218 iops : min= 1, max= 29, avg=13.41, stdev= 5.45, samples=218 lat (usec) : 50=0.94%, 100=3.52%, 250=0.26%, 500=0.07%, 750=0.03% lat (usec) : 1000=0.03% lat (msec) : 2=6.25%, 4=4.00%, 10=6.35%, 20=12.17%, 50=42.15% lat (msec) : 100=20.35%, 250=3.71%, 500=0.13%, 1000=0.03% cpu : usr=0.09%, sys=5.80%, ctx=6478, 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=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=144259: Mon Aug 10 21:11:08 2026 read: IOPS=13, BW=54.4KiB/s (55.7kB/s)(6052KiB/111236msec) clat (usec): min=34, max=236059, avg=34418.70, stdev=23967.60 lat (usec): min=34, max=236060, avg=34420.88, stdev=23966.59 clat percentiles (usec): | 1.00th=[ 49], 5.00th=[ 58], 10.00th=[ 7963], 20.00th=[ 17695], | 30.00th=[ 21627], 40.00th=[ 26084], 50.00th=[ 30802], 60.00th=[ 35914], | 70.00th=[ 42206], 80.00th=[ 50070], 90.00th=[ 64750], 95.00th=[ 76022], | 99.00th=[106431], 99.50th=[127402], 99.90th=[225444], 99.95th=[235930], | 99.99th=[235930] bw ( KiB/s): min= 7, max= 128, per=25.55%, avg=54.67, stdev=22.55, samples=217 iops : min= 1, max= 32, avg=13.03, stdev= 5.67, samples=217 write: IOPS=14, BW=56.1KiB/s (57.4kB/s)(6236KiB/111236msec); 0 zone resets clat (usec): min=1067, max=910703, avg=37599.06, stdev=44603.80 lat (usec): min=1068, max=910707, avg=37601.32, stdev=44604.55 clat percentiles (usec): | 1.00th=[ 1188], 5.00th=[ 1319], 10.00th=[ 1565], 20.00th=[ 4621], | 30.00th=[ 8455], 40.00th=[ 17171], 50.00th=[ 26346], 60.00th=[ 36439], | 70.00th=[ 48497], 80.00th=[ 63177], 90.00th=[ 87557], 95.00th=[112722], | 99.00th=[175113], 99.50th=[210764], 99.90th=[304088], 99.95th=[910164], | 99.99th=[910164] bw ( KiB/s): min= 7, max= 119, per=25.04%, avg=56.09, stdev=21.64, samples=218 iops : min= 1, max= 29, avg=13.39, stdev= 5.42, samples=218 lat (usec) : 50=0.62%, 100=3.68%, 250=0.26%, 500=0.03%, 750=0.03% lat (msec) : 2=5.96%, 4=3.39%, 10=7.58%, 20=12.73%, 50=41.21% lat (msec) : 100=20.21%, 250=4.17%, 500=0.10%, 1000=0.03% cpu : usr=0.09%, sys=5.95%, ctx=6520, majf=0, minf=18 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=215KiB/s (220kB/s), 53.6KiB/s-54.4KiB/s (54.9kB/s-55.7kB/s), io=23.4MiB (24.6MB), run=109501-111820msec WRITE: bw=225KiB/s (230kB/s), 56.1KiB/s-57.0KiB/s (57.4kB/s-59.4kB/s), io=24.6MiB (25.7MB), run=109501-111820msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144254: Mon Aug 10 21:13:24 2026 read: IOPS=6, BW=24.3KiB/s (24.9kB/s)(5992KiB/246433msec) clat (msec): min=4, max=1084, avg=34.51, stdev=40.06 lat (msec): min=4, max=1084, avg=34.53, stdev=40.06 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 18], 40.00th=[ 22], 50.00th=[ 26], 60.00th=[ 31], | 70.00th=[ 38], 80.00th=[ 48], 90.00th=[ 67], 95.00th=[ 89], | 99.00th=[ 148], 99.50th=[ 188], 99.90th=[ 376], 99.95th=[ 1083], | 99.99th=[ 1083] bw ( KiB/s): min= 7, max= 103, per=27.44%, avg=26.34, stdev=17.51, samples=439 iops : min= 1, max= 25, avg= 5.97, stdev= 4.42, samples=439 write: IOPS=6, BW=25.5KiB/s (26.2kB/s)(6296KiB/246433msec); 0 zone resets clat (msec): min=26, max=477, avg=123.43, stdev=56.19 lat (msec): min=26, max=477, avg=123.43, stdev=56.19 clat percentiles (msec): | 1.00th=[ 45], 5.00th=[ 56], 10.00th=[ 64], 20.00th=[ 78], | 30.00th=[ 88], 40.00th=[ 101], 50.00th=[ 112], 60.00th=[ 126], | 70.00th=[ 144], 80.00th=[ 165], 90.00th=[ 199], 95.00th=[ 226], | 99.00th=[ 305], 99.50th=[ 330], 99.90th=[ 426], 99.95th=[ 477], | 99.99th=[ 477] bw ( KiB/s): min= 7, max= 63, per=24.88%, avg=25.13, stdev=11.17, samples=482 iops : min= 1, max= 15, avg= 5.67, stdev= 2.84, samples=482 lat (msec) : 10=4.07%, 20=13.51%, 50=23.76%, 100=26.56%, 250=30.27% lat (msec) : 500=1.79%, 2000=0.03% cpu : usr=0.04%, sys=1.47%, ctx=5513, 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=144258: Mon Aug 10 21:13:24 2026 read: IOPS=5, BW=23.0KiB/s (24.5kB/s)(5940KiB/247784msec) clat (msec): min=4, max=814, avg=34.70, stdev=38.45 lat (msec): min=4, max=814, avg=34.70, stdev=38.45 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 21], 50.00th=[ 25], 60.00th=[ 31], | 70.00th=[ 37], 80.00th=[ 48], 90.00th=[ 69], 95.00th=[ 88], | 99.00th=[ 169], 99.50th=[ 245], 99.90th=[ 376], 99.95th=[ 818], | 99.99th=[ 818] bw ( KiB/s): min= 7, max= 95, per=27.39%, avg=26.29, stdev=17.39, samples=437 iops : min= 1, max= 23, avg= 5.96, stdev= 4.39, samples=437 write: IOPS=6, BW=25.6KiB/s (26.2kB/s)(6348KiB/247784msec); 0 zone resets clat (msec): min=26, max=480, avg=123.37, stdev=59.17 lat (msec): min=26, max=480, avg=123.37, stdev=59.17 clat percentiles (msec): | 1.00th=[ 41], 5.00th=[ 53], 10.00th=[ 62], 20.00th=[ 77], | 30.00th=[ 88], 40.00th=[ 100], 50.00th=[ 111], 60.00th=[ 125], | 70.00th=[ 142], 80.00th=[ 167], 90.00th=[ 199], 95.00th=[ 236], | 99.00th=[ 317], 99.50th=[ 376], 99.90th=[ 405], 99.95th=[ 481], | 99.99th=[ 481] bw ( KiB/s): min= 7, max= 79, per=24.95%, avg=25.20, stdev=11.45, samples=485 iops : min= 1, max= 19, avg= 5.68, stdev= 2.93, samples=485 lat (msec) : 10=4.52%, 20=14.06%, 50=22.79%, 100=26.40%, 250=30.05% lat (msec) : 500=2.15%, 1000=0.03% cpu : usr=0.04%, sys=1.44%, ctx=5507, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144260: Mon Aug 10 21:13:24 2026 read: IOPS=6, BW=24.5KiB/s (25.1kB/s)(6028KiB/246263msec) clat (msec): min=5, max=283, avg=35.55, stdev=29.61 lat (msec): min=5, max=283, avg=35.55, stdev=29.61 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 16], | 30.00th=[ 20], 40.00th=[ 23], 50.00th=[ 27], 60.00th=[ 33], | 70.00th=[ 40], 80.00th=[ 51], 90.00th=[ 69], 95.00th=[ 93], | 99.00th=[ 144], 99.50th=[ 176], 99.90th=[ 251], 99.95th=[ 284], | 99.99th=[ 284] bw ( KiB/s): min= 7, max= 96, per=27.22%, avg=26.13, stdev=17.75, samples=446 iops : min= 1, max= 24, avg= 5.92, stdev= 4.49, samples=446 write: IOPS=6, BW=25.4KiB/s (26.0kB/s)(6260KiB/246263msec); 0 zone resets clat (msec): min=30, max=910, avg=122.84, stdev=60.94 lat (msec): min=30, max=910, avg=122.84, stdev=60.94 clat percentiles (msec): | 1.00th=[ 40], 5.00th=[ 56], 10.00th=[ 63], 20.00th=[ 77], | 30.00th=[ 87], 40.00th=[ 99], 50.00th=[ 112], 60.00th=[ 123], | 70.00th=[ 138], 80.00th=[ 163], 90.00th=[ 201], 95.00th=[ 241], | 99.00th=[ 317], 99.50th=[ 338], 99.90th=[ 460], 99.95th=[ 911], | 99.99th=[ 911] bw ( KiB/s): min= 7, max= 64, per=24.79%, avg=25.04, stdev=11.49, samples=482 iops : min= 1, max= 16, avg= 5.64, stdev= 2.92, samples=482 lat (msec) : 10=3.55%, 20=12.43%, 50=24.71%, 100=27.86%, 250=29.56% lat (msec) : 500=1.86%, 1000=0.03% cpu : usr=0.04%, sys=1.48%, ctx=5515, 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=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=144261: Mon Aug 10 21:13:24 2026 read: IOPS=6, BW=24.6KiB/s (25.2kB/s)(6052KiB/245582msec) clat (msec): min=4, max=291, avg=33.26, stdev=28.17 lat (msec): min=4, max=291, avg=33.27, stdev=28.17 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 21], 50.00th=[ 26], 60.00th=[ 31], | 70.00th=[ 38], 80.00th=[ 47], 90.00th=[ 66], 95.00th=[ 85], | 99.00th=[ 148], 99.50th=[ 163], 99.90th=[ 268], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 7, max= 96, per=27.93%, avg=26.82, stdev=18.07, samples=437 iops : min= 1, max= 24, avg= 6.09, stdev= 4.57, samples=437 write: IOPS=6, BW=25.4KiB/s (26.0kB/s)(6236KiB/245582msec); 0 zone resets clat (msec): min=34, max=898, avg=124.93, stdev=62.62 lat (msec): min=34, max=898, avg=124.93, stdev=62.62 clat percentiles (msec): | 1.00th=[ 43], 5.00th=[ 54], 10.00th=[ 64], 20.00th=[ 77], | 30.00th=[ 88], 40.00th=[ 99], 50.00th=[ 111], 60.00th=[ 126], | 70.00th=[ 144], 80.00th=[ 165], 90.00th=[ 205], 95.00th=[ 245], | 99.00th=[ 334], 99.50th=[ 372], 99.90th=[ 456], 99.95th=[ 902], | 99.99th=[ 902] bw ( KiB/s): min= 7, max= 56, per=24.68%, avg=24.93, stdev=10.97, samples=483 iops : min= 1, max= 14, avg= 5.61, stdev= 2.79, samples=483 lat (msec) : 10=4.33%, 20=14.42%, 50=23.14%, 100=26.99%, 250=28.87% lat (msec) : 500=2.21%, 1000=0.03% cpu : usr=0.05%, sys=1.51%, ctx=5622, 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=96.9KiB/s (99.2kB/s), 23.0KiB/s-24.6KiB/s (24.5kB/s-25.2kB/s), io=23.4MiB (24.6MB), run=245582-247784msec WRITE: bw=101KiB/s (104kB/s), 25.4KiB/s-25.6KiB/s (26.0kB/s-26.2kB/s), io=24.6MiB (25.7MB), run=245582-247784msec 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=144316: Mon Aug 10 21:13:56 2026 read: IOPS=16, BW=272KiB/s (279kB/s)(5920KiB/21765msec) clat (usec): min=32, max=159053, avg=29952.38, stdev=24702.91 lat (usec): min=33, max=159054, avg=29955.59, stdev=24702.72 clat percentiles (usec): | 1.00th=[ 39], 5.00th=[ 50], 10.00th=[ 58], 20.00th=[ 68], | 30.00th=[ 16319], 40.00th=[ 23987], 50.00th=[ 29230], 60.00th=[ 34866], | 70.00th=[ 41157], 80.00th=[ 51119], 90.00th=[ 60031], 95.00th=[ 69731], | 99.00th=[ 93848], 99.50th=[117965], 99.90th=[158335], 99.95th=[158335], | 99.99th=[158335] bw ( KiB/s): min= 63, max= 541, per=26.15%, avg=269.38, stdev=96.18, samples=42 iops : min= 3, max= 33, avg=16.17, stdev= 6.04, samples=42 write: IOPS=18, BW=293KiB/s (300kB/s)(6368KiB/21765msec); 0 zone resets clat (usec): min=1243, max=224198, avg=26022.23, stdev=29011.05 lat (usec): min=1245, max=224200, avg=26023.94, stdev=29011.09 clat percentiles (usec): | 1.00th=[ 1631], 5.00th=[ 1844], 10.00th=[ 2442], 20.00th=[ 4228], | 30.00th=[ 6063], 40.00th=[ 8356], 50.00th=[ 13566], 60.00th=[ 21365], | 70.00th=[ 34341], 80.00th=[ 50070], 90.00th=[ 64750], 95.00th=[ 87557], | 99.00th=[113771], 99.50th=[131597], 99.90th=[223347], 99.95th=[223347], | 99.99th=[223347] bw ( KiB/s): min= 54, max= 501, per=27.06%, avg=293.07, stdev=103.36, samples=42 iops : min= 3, max= 31, avg=17.67, stdev= 6.57, samples=42 lat (usec) : 50=2.34%, 100=9.38%, 250=0.91% lat (msec) : 2=3.39%, 4=6.90%, 10=12.76%, 20=10.68%, 50=32.29% lat (msec) : 100=19.40%, 250=1.95% cpu : usr=0.06%, sys=7.44%, ctx=1372, 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=144317: Mon Aug 10 21:13:56 2026 read: IOPS=15, BW=248KiB/s (254kB/s)(5744KiB/23128msec) clat (usec): min=31, max=136471, avg=30764.09, stdev=24847.57 lat (usec): min=31, max=136472, avg=30765.20, stdev=24847.57 clat percentiles (usec): | 1.00th=[ 38], 5.00th=[ 50], 10.00th=[ 59], 20.00th=[ 70], | 30.00th=[ 18482], 40.00th=[ 25035], 50.00th=[ 29230], 60.00th=[ 35390], | 70.00th=[ 41681], 80.00th=[ 49021], 90.00th=[ 62129], 95.00th=[ 72877], | 99.00th=[109577], 99.50th=[110625], 99.90th=[137364], 99.95th=[137364], | 99.99th=[137364] bw ( KiB/s): min= 54, max= 447, per=24.05%, avg=247.67, stdev=88.52, samples=45 iops : min= 3, max= 27, avg=14.78, stdev= 5.53, samples=45 write: IOPS=17, BW=283KiB/s (290kB/s)(6544KiB/23128msec); 0 zone resets clat (usec): min=1193, max=151976, avg=28948.47, stdev=27801.07 lat (usec): min=1195, max=151976, avg=28957.51, stdev=27798.03 clat percentiles (usec): | 1.00th=[ 1582], 5.00th=[ 1876], 10.00th=[ 2540], 20.00th=[ 5145], | 30.00th=[ 7635], 40.00th=[ 11994], 50.00th=[ 20055], 60.00th=[ 27919], | 70.00th=[ 40109], 80.00th=[ 52167], 90.00th=[ 67634], 95.00th=[ 83362], | 99.00th=[117965], 99.50th=[128451], 99.90th=[152044], 99.95th=[152044], | 99.99th=[152044] bw ( KiB/s): min= 95, max= 470, per=25.98%, avg=281.38, stdev=79.69, samples=45 iops : min= 5, max= 29, avg=16.91, stdev= 5.06, samples=45 lat (usec) : 50=2.34%, 100=8.59%, 250=0.39%, 500=0.13% lat (msec) : 2=3.39%, 4=5.08%, 10=10.81%, 20=10.68%, 50=38.28% lat (msec) : 100=18.23%, 250=2.08% cpu : usr=0.08%, sys=7.18%, ctx=1442, 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=144318: Mon Aug 10 21:13:56 2026 read: IOPS=16, BW=269KiB/s (276kB/s)(6256KiB/23249msec) clat (usec): min=33, max=162609, avg=31426.33, stdev=26939.61 lat (usec): min=33, max=162609, avg=31427.39, stdev=26939.61 clat percentiles (usec): | 1.00th=[ 39], 5.00th=[ 53], 10.00th=[ 58], 20.00th=[ 74], | 30.00th=[ 18220], 40.00th=[ 24249], 50.00th=[ 29230], 60.00th=[ 35390], | 70.00th=[ 41681], 80.00th=[ 49546], 90.00th=[ 62653], 95.00th=[ 76022], | 99.00th=[125305], 99.50th=[160433], 99.90th=[162530], 99.95th=[162530], | 99.99th=[162530] bw ( KiB/s): min= 63, max= 473, per=26.03%, avg=268.07, stdev=81.88, samples=45 iops : min= 3, max= 29, avg=16.07, stdev= 5.18, samples=45 write: IOPS=16, BW=259KiB/s (266kB/s)(6032KiB/23249msec); 0 zone resets clat (usec): min=1418, max=235195, avg=28785.71, stdev=31002.87 lat (usec): min=1420, max=235196, avg=28787.74, stdev=31003.30 clat percentiles (usec): | 1.00th=[ 1565], 5.00th=[ 1860], 10.00th=[ 2114], 20.00th=[ 4228], | 30.00th=[ 7242], 40.00th=[ 10945], 50.00th=[ 17171], 60.00th=[ 27132], | 70.00th=[ 38536], 80.00th=[ 51643], 90.00th=[ 72877], 95.00th=[ 87557], | 99.00th=[130548], 99.50th=[193987], 99.90th=[235930], 99.95th=[235930], | 99.99th=[235930] bw ( KiB/s): min= 91, max= 510, per=23.57%, avg=255.31, stdev=93.57, samples=45 iops : min= 5, max= 31, avg=15.24, stdev= 5.83, samples=45 lat (usec) : 50=1.69%, 100=9.51%, 250=0.91%, 500=0.13%, 1000=0.13% lat (msec) : 2=4.04%, 4=5.86%, 10=8.72%, 20=11.59%, 50=37.11% lat (msec) : 100=17.97%, 250=2.34% cpu : usr=0.09%, sys=6.82%, ctx=1452, 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=144319: Mon Aug 10 21:13:56 2026 read: IOPS=16, BW=262KiB/s (268kB/s)(6032KiB/23015msec) clat (usec): min=35, max=132012, avg=29568.90, stdev=24514.61 lat (usec): min=35, max=132013, avg=29572.37, stdev=24516.63 clat percentiles (usec): | 1.00th=[ 39], 5.00th=[ 55], 10.00th=[ 61], 20.00th=[ 67], | 30.00th=[ 13960], 40.00th=[ 23200], 50.00th=[ 29754], 60.00th=[ 35914], | 70.00th=[ 41681], 80.00th=[ 51643], 90.00th=[ 63177], 95.00th=[ 71828], | 99.00th=[ 88605], 99.50th=[104334], 99.90th=[131597], 99.95th=[131597], | 99.99th=[131597] bw ( KiB/s): min= 95, max= 542, per=25.91%, avg=266.91, stdev=113.21, samples=44 iops : min= 5, max= 33, avg=16.00, stdev= 7.12, samples=44 write: IOPS=16, BW=272KiB/s (278kB/s)(6256KiB/23015msec); 0 zone resets clat (usec): min=1434, max=221511, avg=29583.04, stdev=33887.39 lat (usec): min=1435, max=221512, avg=29610.12, stdev=33879.88 clat percentiles (usec): | 1.00th=[ 1467], 5.00th=[ 1811], 10.00th=[ 2311], 20.00th=[ 4228], | 30.00th=[ 6456], 40.00th=[ 9765], 50.00th=[ 15926], 60.00th=[ 24249], | 70.00th=[ 33424], 80.00th=[ 52167], 90.00th=[ 76022], 95.00th=[102237], | 99.00th=[154141], 99.50th=[177210], 99.90th=[221250], 99.95th=[221250], | 99.99th=[221250] bw ( KiB/s): min= 54, max= 606, per=25.11%, avg=271.98, stdev=113.24, samples=45 iops : min= 3, max= 37, avg=16.33, stdev= 7.09, samples=45 lat (usec) : 50=1.43%, 100=11.33%, 250=0.78%, 500=0.52% lat (msec) : 2=3.91%, 4=5.60%, 10=11.46%, 20=10.29%, 50=33.72% lat (msec) : 100=17.97%, 250=2.99% cpu : usr=0.08%, sys=7.07%, ctx=1343, 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=1030KiB/s (1055kB/s), 248KiB/s-272KiB/s (254kB/s-279kB/s), io=23.4MiB (24.5MB), run=21765-23249msec WRITE: bw=1084KiB/s (1110kB/s), 259KiB/s-293KiB/s (266kB/s-300kB/s), io=24.6MiB (25.8MB), run=21765-23249msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144311: Mon Aug 10 21:14:35 2026 read: IOPS=5, BW=94.7KiB/s (96.0kB/s)(5920KiB/62512msec) clat (msec): min=6, max=227, avg=34.83, stdev=28.46 lat (msec): min=6, max=227, avg=34.83, stdev=28.46 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 17], | 30.00th=[ 20], 40.00th=[ 23], 50.00th=[ 27], 60.00th=[ 33], | 70.00th=[ 37], 80.00th=[ 45], 90.00th=[ 65], 95.00th=[ 90], | 99.00th=[ 153], 99.50th=[ 199], 99.90th=[ 228], 99.95th=[ 228], | 99.99th=[ 228] bw ( KiB/s): min= 30, max= 319, per=25.95%, avg=99.13, stdev=59.54, samples=116 iops : min= 1, max= 19, avg= 5.43, stdev= 3.79, samples=116 write: IOPS=6, BW=102KiB/s (104kB/s)(6368KiB/62512msec); 0 zone resets clat (msec): min=42, max=367, avg=124.47, stdev=50.90 lat (msec): min=42, max=367, avg=124.47, stdev=50.90 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 61], 10.00th=[ 70], 20.00th=[ 86], | 30.00th=[ 96], 40.00th=[ 106], 50.00th=[ 113], 60.00th=[ 125], | 70.00th=[ 138], 80.00th=[ 159], 90.00th=[ 197], 95.00th=[ 226], | 99.00th=[ 292], 99.50th=[ 313], 99.90th=[ 368], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 29, max= 192, per=25.12%, avg=100.99, stdev=37.98, samples=123 iops : min= 1, max= 12, avg= 5.55, stdev= 2.47, samples=123 lat (msec) : 10=2.21%, 20=13.28%, 50=25.00%, 100=23.83%, 250=34.11% lat (msec) : 500=1.56% cpu : usr=0.04%, sys=1.55%, ctx=1384, 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=144312: Mon Aug 10 21:14:35 2026 read: IOPS=5, BW=91.7KiB/s (93.9kB/s)(5744KiB/62670msec) clat (msec): min=6, max=151, avg=33.56, stdev=24.29 lat (msec): min=6, max=151, avg=33.56, stdev=24.29 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 16], | 30.00th=[ 20], 40.00th=[ 23], 50.00th=[ 26], 60.00th=[ 31], | 70.00th=[ 36], 80.00th=[ 47], 90.00th=[ 68], 95.00th=[ 83], | 99.00th=[ 133], 99.50th=[ 136], 99.90th=[ 153], 99.95th=[ 153], | 99.99th=[ 153] bw ( KiB/s): min= 30, max= 318, per=27.51%, avg=105.08, stdev=63.53, samples=108 iops : min= 1, max= 19, avg= 5.83, stdev= 4.08, samples=108 write: IOPS=6, BW=104KiB/s (107kB/s)(6544KiB/62670msec); 0 zone resets clat (msec): min=40, max=498, avg=123.15, stdev=51.53 lat (msec): min=40, max=498, avg=123.15, stdev=51.53 clat percentiles (msec): | 1.00th=[ 55], 5.00th=[ 67], 10.00th=[ 73], 20.00th=[ 81], | 30.00th=[ 91], 40.00th=[ 102], 50.00th=[ 111], 60.00th=[ 127], | 70.00th=[ 142], 80.00th=[ 159], 90.00th=[ 186], 95.00th=[ 211], | 99.00th=[ 288], 99.50th=[ 292], 99.90th=[ 498], 99.95th=[ 498], | 99.99th=[ 498] bw ( KiB/s): min= 30, max= 192, per=26.04%, avg=104.67, stdev=37.34, samples=123 iops : min= 1, max= 12, avg= 5.78, stdev= 2.46, samples=123 lat (msec) : 10=2.08%, 20=12.89%, 50=23.31%, 100=28.13%, 250=32.42% lat (msec) : 500=1.17% cpu : usr=0.05%, sys=1.54%, ctx=1378, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144314: Mon Aug 10 21:14:35 2026 read: IOPS=6, BW=105KiB/s (107kB/s)(6256KiB/59683msec) clat (msec): min=5, max=215, avg=32.99, stdev=26.75 lat (msec): min=5, max=215, avg=32.99, stdev=26.75 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 14], 20.00th=[ 16], | 30.00th=[ 20], 40.00th=[ 22], 50.00th=[ 26], 60.00th=[ 29], | 70.00th=[ 34], 80.00th=[ 43], 90.00th=[ 60], 95.00th=[ 86], | 99.00th=[ 148], 99.50th=[ 188], 99.90th=[ 215], 99.95th=[ 215], | 99.99th=[ 215] bw ( KiB/s): min= 31, max= 416, per=29.43%, avg=112.42, stdev=71.29, samples=110 iops : min= 1, max= 26, avg= 6.27, stdev= 4.57, samples=110 write: IOPS=6, BW=101KiB/s (103kB/s)(6032KiB/59683msec); 0 zone resets clat (msec): min=45, max=311, avg=123.32, stdev=49.50 lat (msec): min=45, max=311, avg=123.34, stdev=49.50 clat percentiles (msec): | 1.00th=[ 54], 5.00th=[ 62], 10.00th=[ 72], 20.00th=[ 84], | 30.00th=[ 93], 40.00th=[ 102], 50.00th=[ 113], 60.00th=[ 125], | 70.00th=[ 142], 80.00th=[ 159], 90.00th=[ 188], 95.00th=[ 230], | 99.00th=[ 275], 99.50th=[ 305], 99.90th=[ 313], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 29, max= 192, per=25.07%, avg=100.76, stdev=37.41, samples=118 iops : min= 1, max= 12, avg= 5.53, stdev= 2.43, samples=118 lat (msec) : 10=2.08%, 20=14.97%, 50=26.30%, 100=24.09%, 250=31.12% lat (msec) : 500=1.43% cpu : usr=0.05%, sys=1.64%, ctx=1372, 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=144315: Mon Aug 10 21:14:35 2026 read: IOPS=6, BW=98.4KiB/s (101kB/s)(6032KiB/61319msec) clat (msec): min=7, max=240, avg=34.16, stdev=30.70 lat (msec): min=7, max=240, avg=34.16, stdev=30.70 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 20], 40.00th=[ 22], 50.00th=[ 25], 60.00th=[ 29], | 70.00th=[ 35], 80.00th=[ 44], 90.00th=[ 64], 95.00th=[ 90], | 99.00th=[ 186], 99.50th=[ 226], 99.90th=[ 241], 99.95th=[ 241], | 99.99th=[ 241] bw ( KiB/s): min= 31, max= 350, per=27.58%, avg=105.35, stdev=66.21, samples=112 iops : min= 1, max= 21, avg= 5.82, stdev= 4.14, samples=112 write: IOPS=6, BW=102KiB/s (104kB/s)(6256KiB/61319msec); 0 zone resets clat (msec): min=34, max=323, avg=123.09, stdev=48.98 lat (msec): min=34, max=323, avg=123.10, stdev=48.98 clat percentiles (msec): | 1.00th=[ 46], 5.00th=[ 64], 10.00th=[ 73], 20.00th=[ 85], | 30.00th=[ 94], 40.00th=[ 103], 50.00th=[ 111], 60.00th=[ 123], | 70.00th=[ 138], 80.00th=[ 159], 90.00th=[ 188], 95.00th=[ 226], | 99.00th=[ 292], 99.50th=[ 313], 99.90th=[ 326], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 29, max= 191, per=25.28%, avg=101.63, stdev=38.73, samples=121 iops : min= 1, max= 11, avg= 5.60, stdev= 2.54, samples=121 lat (msec) : 10=1.43%, 20=15.23%, 50=25.39%, 100=23.83%, 250=32.55% lat (msec) : 500=1.56% cpu : usr=0.04%, sys=1.60%, ctx=1397, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=382KiB/s (391kB/s), 91.7KiB/s-105KiB/s (93.9kB/s-107kB/s), io=23.4MiB (24.5MB), run=59683-62670msec WRITE: bw=402KiB/s (412kB/s), 101KiB/s-104KiB/s (103kB/s-107kB/s), io=24.6MiB (25.8MB), run=59683-62670msec 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=144339: Mon Aug 10 21:14:51 2026 read: IOPS=2, BW=2098KiB/s (2148kB/s)(7168KiB/3417msec) clat (usec): min=476, max=283033, avg=127343.61, stdev=123167.42 lat (usec): min=477, max=283033, avg=127345.04, stdev=123167.43 clat percentiles (usec): | 1.00th=[ 478], 5.00th=[ 478], 10.00th=[ 478], 20.00th=[ 486], | 30.00th=[ 545], 40.00th=[ 545], 50.00th=[181404], 60.00th=[189793], | 70.00th=[189793], 80.00th=[235930], 90.00th=[283116], 95.00th=[283116], | 99.00th=[283116], 99.50th=[283116], 99.90th=[283116], 99.95th=[283116], | 99.99th=[283116] bw ( KiB/s): min= 1984, max= 3961, per=60.78%, avg=2688.25, stdev=918.50, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 0.82, samples=4 write: IOPS=1, BW=1498KiB/s (1534kB/s)(5120KiB/3417msec); 0 zone resets clat (msec): min=103, max=1340, avg=425.21, stdev=515.33 lat (msec): min=103, max=1340, avg=425.38, stdev=515.31 clat percentiles (msec): | 1.00th=[ 105], 5.00th=[ 105], 10.00th=[ 105], 20.00th=[ 105], | 30.00th=[ 197], 40.00th=[ 197], 50.00th=[ 207], 60.00th=[ 207], | 70.00th=[ 279], 80.00th=[ 279], 90.00th=[ 1334], 95.00th=[ 1334], | 99.00th=[ 1334], 99.50th=[ 1334], 99.90th=[ 1334], 99.95th=[ 1334], | 99.99th=[ 1334] bw ( KiB/s): min= 1980, max= 3968, per=40.55%, avg=2511.00, stdev=971.86, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 0.82, samples=4 lat (usec) : 500=16.67%, 750=8.33% lat (msec) : 250=50.00%, 500=16.67%, 2000=8.33% cpu : usr=0.00%, sys=7.76%, ctx=163, 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=144340: Mon Aug 10 21:14:51 2026 read: IOPS=0, BW=442KiB/s (453kB/s)(2048KiB/4630msec) clat (usec): min=1238, max=1429.4k, avg=715343.01, stdev=1009896.05 lat (usec): min=1240, max=1429.4k, avg=715345.19, stdev=1009896.57 clat percentiles (usec): | 1.00th=[ 1237], 5.00th=[ 1237], 10.00th=[ 1237], | 20.00th=[ 1237], 30.00th=[ 1237], 40.00th=[ 1237], | 50.00th=[ 1237], 60.00th=[1434452], 70.00th=[1434452], | 80.00th=[1434452], 90.00th=[1434452], 95.00th=[1434452], | 99.00th=[1434452], 99.50th=[1434452], 99.90th=[1434452], | 99.95th=[1434452], 99.99th=[1434452] bw ( KiB/s): min= 1980, max= 2031, per=45.34%, avg=2005.50, stdev=36.06, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2212KiB/s (2265kB/s)(10.0MiB/4630msec); 0 zone resets clat (msec): min=111, max=1057, avg=291.56, stdev=283.82 lat (msec): min=111, max=1058, avg=291.64, stdev=283.82 clat percentiles (msec): | 1.00th=[ 111], 5.00th=[ 111], 10.00th=[ 111], 20.00th=[ 120], | 30.00th=[ 132], 40.00th=[ 161], 50.00th=[ 184], 60.00th=[ 218], | 70.00th=[ 239], 80.00th=[ 300], 90.00th=[ 401], 95.00th=[ 1062], | 99.00th=[ 1062], 99.50th=[ 1062], 99.90th=[ 1062], 99.95th=[ 1062], | 99.99th=[ 1062] bw ( KiB/s): min= 1984, max= 6107, per=65.52%, avg=4057.25, stdev=2360.05, samples=4 iops : min= 1, max= 5, avg= 3.00, stdev= 2.31, samples=4 lat (msec) : 2=8.33%, 250=58.33%, 500=16.67%, 2000=16.67% cpu : usr=0.00%, sys=9.76%, ctx=176, 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=144342: Mon Aug 10 21:14:51 2026 read: IOPS=2, BW=2647KiB/s (2711kB/s)(6144KiB/2321msec) clat (usec): min=468, max=299581, avg=153724.01, stdev=124723.02 lat (usec): min=469, max=299582, avg=153725.13, stdev=124722.99 clat percentiles (usec): | 1.00th=[ 469], 5.00th=[ 469], 10.00th=[ 469], 20.00th=[ 7635], | 30.00th=[ 7635], 40.00th=[166724], 50.00th=[166724], 60.00th=[196084], | 70.00th=[252707], 80.00th=[252707], 90.00th=[299893], 95.00th=[299893], | 99.00th=[299893], 99.50th=[299893], 99.90th=[299893], 99.95th=[299893], | 99.99th=[299893] bw ( KiB/s): min= 2043, max= 5941, per=75.60%, avg=3344.00, stdev=2249.07, samples=3 iops : min= 1, max= 5, avg= 2.67, stdev= 2.08, samples=3 write: IOPS=2, BW=2647KiB/s (2711kB/s)(6144KiB/2321msec); 0 zone resets clat (msec): min=94, max=266, avg=197.82, stdev=67.13 lat (msec): min=94, max=266, avg=197.90, stdev=67.14 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 94], 10.00th=[ 94], 20.00th=[ 153], | 30.00th=[ 153], 40.00th=[ 190], 50.00th=[ 190], 60.00th=[ 218], | 70.00th=[ 266], 80.00th=[ 266], 90.00th=[ 268], 95.00th=[ 268], | 99.00th=[ 268], 99.50th=[ 268], 99.90th=[ 268], 99.95th=[ 268], | 99.99th=[ 268] bw ( KiB/s): min= 1980, max= 4087, per=43.79%, avg=2711.25, stdev=977.70, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 0.82, samples=4 lat (usec) : 500=8.33% lat (msec) : 10=8.33%, 100=8.33%, 250=41.67%, 500=33.33% cpu : usr=0.00%, sys=14.91%, ctx=120, 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=144343: Mon Aug 10 21:14:51 2026 read: IOPS=1, BW=1832KiB/s (1876kB/s)(5120KiB/2795msec) clat (usec): min=329, max=575100, avg=154229.58, stdev=249862.52 lat (usec): min=330, max=575101, avg=154230.60, stdev=249862.23 clat percentiles (usec): | 1.00th=[ 330], 5.00th=[ 330], 10.00th=[ 330], 20.00th=[ 330], | 30.00th=[ 449], 40.00th=[ 449], 50.00th=[ 545], 60.00th=[ 545], | 70.00th=[193987], 80.00th=[193987], 90.00th=[574620], 95.00th=[574620], | 99.00th=[574620], 99.50th=[574620], 99.90th=[574620], 99.95th=[574620], | 99.99th=[574620] bw ( KiB/s): min= 2048, max= 5941, per=90.31%, avg=3994.50, stdev=2752.77, samples=2 iops : min= 2, max= 5, avg= 3.50, stdev= 2.12, samples=2 write: IOPS=2, BW=2565KiB/s (2626kB/s)(7168KiB/2795msec); 0 zone resets clat (msec): min=176, max=438, avg=280.56, stdev=86.52 lat (msec): min=176, max=438, avg=280.64, stdev=86.50 clat percentiles (msec): | 1.00th=[ 178], 5.00th=[ 178], 10.00th=[ 178], 20.00th=[ 194], | 30.00th=[ 262], 40.00th=[ 262], 50.00th=[ 288], 60.00th=[ 296], | 70.00th=[ 296], 80.00th=[ 313], 90.00th=[ 439], 95.00th=[ 439], | 99.00th=[ 439], 99.50th=[ 439], 99.90th=[ 439], 99.95th=[ 439], | 99.99th=[ 439] bw ( KiB/s): min= 2043, max= 4096, per=52.45%, avg=3247.75, stdev=1021.81, samples=4 iops : min= 1, max= 4, avg= 2.75, stdev= 1.50, samples=4 lat (usec) : 500=16.67%, 750=8.33% lat (msec) : 250=25.00%, 500=41.67%, 750=8.33% cpu : usr=0.04%, sys=14.53%, ctx=164, 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=4423KiB/s (4529kB/s), 442KiB/s-2647KiB/s (453kB/s-2711kB/s), io=20.0MiB (20.0MB), run=2321-4630msec WRITE: bw=6193KiB/s (6341kB/s), 1498KiB/s-2647KiB/s (1534kB/s-2711kB/s), io=28.0MiB (29.4MB), run=2321-4630msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144337: Mon Aug 10 21:14:51 2026 read: IOPS=1, BW=1657KiB/s (1697kB/s)(7168KiB/4326msec) clat (msec): min=62, max=476, avg=190.87, stdev=149.16 lat (msec): min=62, max=476, avg=190.87, stdev=149.16 clat percentiles (msec): | 1.00th=[ 63], 5.00th=[ 63], 10.00th=[ 63], 20.00th=[ 79], | 30.00th=[ 97], 40.00th=[ 97], 50.00th=[ 113], 60.00th=[ 251], | 70.00th=[ 251], 80.00th=[ 257], 90.00th=[ 477], 95.00th=[ 477], | 99.00th=[ 477], 99.50th=[ 477], 99.90th=[ 477], 99.95th=[ 477], | 99.99th=[ 477] bw ( KiB/s): min= 2007, max= 4096, per=77.47%, avg=3061.75, stdev=1194.37, samples=4 iops : min= 1, max= 4, avg= 2.75, stdev= 1.50, samples=4 write: IOPS=1, BW=1184KiB/s (1212kB/s)(5120KiB/4326msec); 0 zone resets clat (msec): min=167, max=1001, avg=529.70, stdev=365.18 lat (msec): min=167, max=1001, avg=529.80, stdev=365.19 clat percentiles (msec): | 1.00th=[ 167], 5.00th=[ 167], 10.00th=[ 167], 20.00th=[ 167], | 30.00th=[ 271], 40.00th=[ 271], 50.00th=[ 380], 60.00th=[ 380], | 70.00th=[ 827], 80.00th=[ 827], 90.00th=[ 1003], 95.00th=[ 1003], | 99.00th=[ 1003], 99.50th=[ 1003], 99.90th=[ 1003], 99.95th=[ 1003], | 99.99th=[ 1003] bw ( KiB/s): min= 1973, max= 2048, per=36.30%, avg=2008.75, stdev=30.86, samples=4 iops : min= 1, max= 2, avg= 1.25, stdev= 0.50, samples=4 lat (msec) : 100=25.00%, 250=16.67%, 500=41.67%, 1000=8.33%, 2000=8.33% cpu : usr=0.00%, sys=2.34%, ctx=62, 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=144338: Mon Aug 10 21:14:51 2026 read: IOPS=0, BW=410KiB/s (419kB/s)(2048KiB/5001msec) clat (msec): min=74, max=1555, avg=815.06, stdev=1046.81 lat (msec): min=74, max=1555, avg=815.07, stdev=1046.81 clat percentiles (msec): | 1.00th=[ 75], 5.00th=[ 75], 10.00th=[ 75], 20.00th=[ 75], | 30.00th=[ 75], 40.00th=[ 75], 50.00th=[ 75], 60.00th=[ 1552], | 70.00th=[ 1552], 80.00th=[ 1552], 90.00th=[ 1552], 95.00th=[ 1552], | 99.00th=[ 1552], 99.50th=[ 1552], 99.90th=[ 1552], 99.95th=[ 1552], | 99.99th=[ 1552] bw ( KiB/s): min= 1973, max= 2035, per=50.71%, avg=2004.00, stdev=43.84, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=2048KiB/s (2097kB/s)(10.0MiB/5001msec); 0 zone resets clat (msec): min=90, max=1037, avg=299.77, stdev=274.03 lat (msec): min=90, max=1037, avg=300.02, stdev=273.95 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 91], 10.00th=[ 91], 20.00th=[ 111], | 30.00th=[ 159], 40.00th=[ 186], 50.00th=[ 213], 60.00th=[ 230], | 70.00th=[ 268], 80.00th=[ 347], 90.00th=[ 359], 95.00th=[ 1036], | 99.00th=[ 1036], 99.50th=[ 1036], 99.90th=[ 1036], 99.95th=[ 1036], | 99.99th=[ 1036] bw ( KiB/s): min= 2011, max= 8143, per=73.63%, avg=4074.50, stdev=2882.01, samples=4 iops : min= 1, max= 7, avg= 3.50, stdev= 2.65, samples=4 lat (msec) : 100=16.67%, 250=41.67%, 500=25.00%, 2000=16.67% cpu : usr=0.00%, sys=2.44%, 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=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=144341: Mon Aug 10 21:14:51 2026 read: IOPS=1, BW=1399KiB/s (1433kB/s)(6144KiB/4391msec) clat (msec): min=66, max=317, avg=139.84, stdev=96.60 lat (msec): min=66, max=317, avg=139.84, stdev=96.60 clat percentiles (msec): | 1.00th=[ 67], 5.00th=[ 67], 10.00th=[ 67], 20.00th=[ 77], | 30.00th=[ 77], 40.00th=[ 94], 50.00th=[ 94], 60.00th=[ 101], | 70.00th=[ 186], 80.00th=[ 186], 90.00th=[ 317], 95.00th=[ 317], | 99.00th=[ 317], 99.50th=[ 317], 99.90th=[ 317], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 4007, max= 4096, per=100.00%, avg=4051.50, stdev=62.93, samples=2 iops : min= 3, max= 4, avg= 3.50, stdev= 0.71, samples=2 write: IOPS=1, BW=1399KiB/s (1433kB/s)(6144KiB/4391msec); 0 zone resets clat (msec): min=137, max=1633, avg=526.67, stdev=560.58 lat (msec): min=137, max=1633, avg=526.97, stdev=560.41 clat percentiles (msec): | 1.00th=[ 138], 5.00th=[ 138], 10.00th=[ 138], 20.00th=[ 197], | 30.00th=[ 197], 40.00th=[ 247], 50.00th=[ 247], 60.00th=[ 464], | 70.00th=[ 485], 80.00th=[ 485], 90.00th=[ 1636], 95.00th=[ 1636], | 99.00th=[ 1636], 99.50th=[ 1636], 99.90th=[ 1636], 99.95th=[ 1636], | 99.99th=[ 1636] bw ( KiB/s): min= 1973, max= 2048, per=36.44%, avg=2016.60, stdev=31.97, samples=5 iops : min= 1, max= 2, avg= 1.40, stdev= 0.55, samples=5 lat (msec) : 100=25.00%, 250=41.67%, 500=25.00%, 2000=8.33% cpu : usr=0.00%, sys=3.10%, ctx=65, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144344: Mon Aug 10 21:14:51 2026 read: IOPS=0, BW=988KiB/s (1012kB/s)(5120KiB/5181msec) clat (msec): min=64, max=770, avg=270.73, stdev=296.39 lat (msec): min=64, max=770, avg=270.73, stdev=296.39 clat percentiles (msec): | 1.00th=[ 65], 5.00th=[ 65], 10.00th=[ 65], 20.00th=[ 65], | 30.00th=[ 73], 40.00th=[ 73], 50.00th=[ 136], 60.00th=[ 136], | 70.00th=[ 313], 80.00th=[ 313], 90.00th=[ 768], 95.00th=[ 768], | 99.00th=[ 768], 99.50th=[ 768], 99.90th=[ 768], 99.95th=[ 768], | 99.99th=[ 768] bw ( KiB/s): min= 2003, max= 6144, per=100.00%, avg=4073.50, stdev=2928.13, samples=2 iops : min= 1, max= 6, avg= 3.50, stdev= 3.54, samples=2 write: IOPS=1, BW=1384KiB/s (1417kB/s)(7168KiB/5181msec); 0 zone resets clat (msec): min=180, max=2009, avg=531.27, stdev=659.08 lat (msec): min=180, max=2009, avg=531.40, stdev=659.05 clat percentiles (msec): | 1.00th=[ 182], 5.00th=[ 182], 10.00th=[ 182], 20.00th=[ 194], | 30.00th=[ 262], 40.00th=[ 262], 50.00th=[ 288], 60.00th=[ 313], | 70.00th=[ 313], 80.00th=[ 477], 90.00th=[ 2005], 95.00th=[ 2005], | 99.00th=[ 2005], 99.50th=[ 2005], 99.90th=[ 2005], 99.95th=[ 2005], | 99.99th=[ 2005] bw ( KiB/s): min= 1973, max= 4096, per=45.66%, avg=2526.75, stdev=1046.47, samples=4 iops : min= 1, max= 4, avg= 1.75, stdev= 1.50, samples=4 lat (msec) : 100=16.67%, 250=25.00%, 500=41.67%, 1000=8.33%, >=2000=8.33% cpu : usr=0.04%, sys=2.43%, ctx=55, 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=3953KiB/s (4048kB/s), 410KiB/s-1657KiB/s (419kB/s-1697kB/s), io=20.0MiB (20.0MB), run=4326-5181msec WRITE: bw=5534KiB/s (5667kB/s), 1184KiB/s-2048KiB/s (1212kB/s-2097kB/s), io=28.0MiB (29.4MB), run=4326-5181msec 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=144350: Mon Aug 10 21:15:04 2026 read: IOPS=0, BW=3211KiB/s (3288kB/s)(12.0MiB/3827msec) clat (msec): min=973, max=1771, avg=1255.19, stdev=447.39 lat (msec): min=973, max=1771, avg=1255.19, stdev=447.39 clat percentiles (msec): | 1.00th=[ 978], 5.00th=[ 978], 10.00th=[ 978], 20.00th=[ 978], | 30.00th=[ 978], 40.00th=[ 1020], 50.00th=[ 1020], 60.00th=[ 1020], | 70.00th=[ 1770], 80.00th=[ 1770], 90.00th=[ 1770], 95.00th=[ 1770], | 99.00th=[ 1770], 99.50th=[ 1770], 99.90th=[ 1770], 99.95th=[ 1770], | 99.99th=[ 1770] bw ( KiB/s): min= 7922, max= 8175, per=100.00%, avg=8048.50, stdev=178.90, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=33.33%, 2000=66.67% cpu : usr=0.00%, sys=2.74%, ctx=43, majf=0, minf=7 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144351: Mon Aug 10 21:15:04 2026 read: IOPS=0, BW=918KiB/s (940kB/s)(4096KiB/4462msec) clat (nsec): min=1606.9M, max=1606.9M, avg=1606895868.00, stdev= 0.00 lat (nsec): min=1606.9M, max=1606.9M, avg=1606897755.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1603], 5.00th=[ 1603], 10.00th=[ 1603], 20.00th=[ 1603], | 30.00th=[ 1603], 40.00th=[ 1603], 50.00th=[ 1603], 60.00th=[ 1603], | 70.00th=[ 1603], 80.00th=[ 1603], 90.00th=[ 1603], 95.00th=[ 1603], | 99.00th=[ 1603], 99.50th=[ 1603], 99.90th=[ 1603], 99.95th=[ 1603], | 99.99th=[ 1603] 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 write: IOPS=0, BW=1836KiB/s (1880kB/s)(8192KiB/4462msec); 0 zone resets clat (msec): min=940, max=1759, avg=1349.96, stdev=578.62 lat (msec): min=941, max=1759, avg=1350.34, stdev=578.73 clat percentiles (msec): | 1.00th=[ 944], 5.00th=[ 944], 10.00th=[ 944], 20.00th=[ 944], | 30.00th=[ 944], 40.00th=[ 944], 50.00th=[ 944], 60.00th=[ 1754], | 70.00th=[ 1754], 80.00th=[ 1754], 90.00th=[ 1754], 95.00th=[ 1754], | 99.00th=[ 1754], 99.50th=[ 1754], 99.90th=[ 1754], 99.95th=[ 1754], | 99.99th=[ 1754] 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=66.67% cpu : usr=0.00%, sys=2.33%, ctx=54, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144352: Mon Aug 10 21:15:04 2026 write: IOPS=1, BW=6689KiB/s (6850kB/s)(12.0MiB/1837msec); 0 zone resets clat (msec): min=332, max=974, avg=603.07, stdev=332.60 lat (msec): min=332, max=974, avg=603.44, stdev=332.45 clat percentiles (msec): | 1.00th=[ 334], 5.00th=[ 334], 10.00th=[ 334], 20.00th=[ 334], | 30.00th=[ 334], 40.00th=[ 502], 50.00th=[ 502], 60.00th=[ 502], | 70.00th=[ 978], 80.00th=[ 978], 90.00th=[ 978], 95.00th=[ 978], | 99.00th=[ 978], 99.50th=[ 978], 99.90th=[ 978], 99.95th=[ 978], | 99.99th=[ 978] bw ( KiB/s): min= 5505, max= 8078, per=92.49%, avg=6791.50, stdev=1819.39, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 750=33.33%, 1000=33.33% cpu : usr=0.00%, sys=5.45%, ctx=51, majf=0, minf=7 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144353: Mon Aug 10 21:15:04 2026 write: IOPS=0, BW=3853KiB/s (3946kB/s)(12.0MiB/3189msec); 0 zone resets clat (msec): min=719, max=1567, avg=1026.68, stdev=469.89 lat (msec): min=721, max=1571, avg=1029.36, stdev=471.14 clat percentiles (msec): | 1.00th=[ 718], 5.00th=[ 718], 10.00th=[ 718], 20.00th=[ 718], | 30.00th=[ 718], 40.00th=[ 793], 50.00th=[ 793], 60.00th=[ 793], | 70.00th=[ 1569], 80.00th=[ 1569], 90.00th=[ 1569], 95.00th=[ 1569], | 99.00th=[ 1569], 99.50th=[ 1569], 99.90th=[ 1569], 99.95th=[ 1569], | 99.99th=[ 1569] bw ( KiB/s): min= 8062, max= 8159, per=100.00%, avg=8110.50, stdev=68.59, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=3.04%, ctx=46, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=3672KiB/s (3760kB/s), 918KiB/s-3211KiB/s (940kB/s-3288kB/s), io=16.0MiB (16.8MB), run=3827-4462msec WRITE: bw=7344KiB/s (7520kB/s), 1836KiB/s-6689KiB/s (1880kB/s-6850kB/s), io=32.0MiB (33.6MB), run=1837-4462msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144354: Mon Aug 10 21:15:05 2026 read: IOPS=0, BW=3242KiB/s (3320kB/s)(12.0MiB/3790msec) clat (msec): min=1068, max=1452, avg=1238.22, stdev=196.21 lat (msec): min=1068, max=1452, avg=1238.23, stdev=196.21 clat percentiles (msec): | 1.00th=[ 1070], 5.00th=[ 1070], 10.00th=[ 1070], 20.00th=[ 1070], | 30.00th=[ 1070], 40.00th=[ 1200], 50.00th=[ 1200], 60.00th=[ 1200], | 70.00th=[ 1452], 80.00th=[ 1452], 90.00th=[ 1452], 95.00th=[ 1452], | 99.00th=[ 1452], 99.50th=[ 1452], 99.90th=[ 1452], 99.95th=[ 1452], | 99.99th=[ 1452] bw ( KiB/s): min= 8015, max= 8159, per=100.00%, avg=8105.67, stdev=78.93, samples=3 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=3 lat (msec) : 2000=100.00% cpu : usr=0.00%, sys=9.32%, ctx=306, 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=144355: Mon Aug 10 21:15:05 2026 read: IOPS=0, BW=1046KiB/s (1071kB/s)(4096KiB/3915msec) clat (nsec): min=1125.2M, max=1125.2M, avg=1125220492.00, stdev= 0.00 lat (nsec): min=1125.2M, max=1125.2M, avg=1125222577.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1133], 5.00th=[ 1133], 10.00th=[ 1133], 20.00th=[ 1133], | 30.00th=[ 1133], 40.00th=[ 1133], 50.00th=[ 1133], 60.00th=[ 1133], | 70.00th=[ 1133], 80.00th=[ 1133], 90.00th=[ 1133], 95.00th=[ 1133], | 99.00th=[ 1133], 99.50th=[ 1133], 99.90th=[ 1133], 99.95th=[ 1133], | 99.99th=[ 1133] 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=2092KiB/s (2143kB/s)(8192KiB/3915msec); 0 zone resets clat (msec): min=587, max=2075, avg=1331.54, stdev=1051.75 lat (msec): min=588, max=2075, avg=1332.02, stdev=1051.68 clat percentiles (msec): | 1.00th=[ 592], 5.00th=[ 592], 10.00th=[ 592], 20.00th=[ 592], | 30.00th=[ 592], 40.00th=[ 592], 50.00th=[ 592], 60.00th=[ 2072], | 70.00th=[ 2072], 80.00th=[ 2072], 90.00th=[ 2072], 95.00th=[ 2072], | 99.00th=[ 2072], 99.50th=[ 2072], 99.90th=[ 2072], 99.95th=[ 2072], | 99.99th=[ 2072] bw ( KiB/s): min= 8143, max= 8143, per=100.00%, avg=8143.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=6.75%, ctx=165, 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=144356: Mon Aug 10 21:15:05 2026 write: IOPS=0, BW=2609KiB/s (2672kB/s)(12.0MiB/4710msec); 0 zone resets clat (msec): min=291, max=3397, avg=1551.17, stdev=1634.26 lat (msec): min=292, max=3399, avg=1552.42, stdev=1634.96 clat percentiles (msec): | 1.00th=[ 292], 5.00th=[ 292], 10.00th=[ 292], 20.00th=[ 292], | 30.00th=[ 292], 40.00th=[ 969], 50.00th=[ 969], 60.00th=[ 969], | 70.00th=[ 3406], 80.00th=[ 3406], 90.00th=[ 3406], 95.00th=[ 3406], | 99.00th=[ 3406], 99.50th=[ 3406], 99.90th=[ 3406], 99.95th=[ 3406], | 99.99th=[ 3406] bw ( KiB/s): min= 8015, max= 8175, per=100.00%, avg=8095.00, stdev=113.14, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 1000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=3.29%, ctx=52, 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=144357: Mon Aug 10 21:15:05 2026 write: IOPS=1, BW=4752KiB/s (4866kB/s)(12.0MiB/2586msec); 0 zone resets clat (msec): min=382, max=1713, avg=842.79, stdev=754.38 lat (msec): min=382, max=1713, avg=843.36, stdev=754.32 clat percentiles (msec): | 1.00th=[ 384], 5.00th=[ 384], 10.00th=[ 384], 20.00th=[ 384], | 30.00th=[ 384], 40.00th=[ 435], 50.00th=[ 435], 60.00th=[ 435], | 70.00th=[ 1720], 80.00th=[ 1720], 90.00th=[ 1720], 95.00th=[ 1720], | 99.00th=[ 1720], 99.50th=[ 1720], 99.90th=[ 1720], 99.95th=[ 1720], | 99.99th=[ 1720] bw ( KiB/s): min= 7249, max= 8175, per=100.00%, avg=7712.00, stdev=654.78, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=66.67%, 2000=33.33% cpu : usr=0.00%, sys=4.49%, 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 Run status group 0 (all jobs): READ: bw=4185KiB/s (4285kB/s), 1046KiB/s-3242KiB/s (1071kB/s-3320kB/s), io=16.0MiB (16.8MB), run=3790-3915msec WRITE: bw=6957KiB/s (7124kB/s), 2092KiB/s-4752KiB/s (2143kB/s-4866kB/s), io=32.0MiB (33.6MB), run=2586-4710msec