== sanity test 398b: DIO and buffer IO race ============== 06:20:40 (1789122040) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 6.46128 s, 7.8 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=144639: Fri Sep 11 06:23:09 2026 read: IOPS=11, BW=46.3KiB/s (47.4kB/s)(5992KiB/129314msec) clat (usec): min=38, max=577318, avg=43008.03, stdev=34264.89 lat (usec): min=38, max=577320, avg=43011.77, stdev=34262.33 clat percentiles (usec): | 1.00th=[ 59], 5.00th=[ 73], 10.00th=[ 10290], 20.00th=[ 20055], | 30.00th=[ 25560], 40.00th=[ 31065], 50.00th=[ 36963], 60.00th=[ 43254], | 70.00th=[ 51643], 80.00th=[ 62129], 90.00th=[ 80217], 95.00th=[101188], | 99.00th=[147850], 99.50th=[202376], 99.90th=[320865], 99.95th=[574620], | 99.99th=[574620] bw ( KiB/s): min= 6, max= 111, per=25.16%, avg=46.04, stdev=20.20, samples=254 iops : min= 1, max= 27, avg=10.87, stdev= 5.07, samples=254 write: IOPS=12, BW=48.7KiB/s (49.9kB/s)(6296KiB/129314msec); 0 zone resets clat (usec): min=810, max=417873, avg=40855.35, stdev=41953.56 lat (usec): min=811, max=417874, avg=40863.98, stdev=41951.51 clat percentiles (usec): | 1.00th=[ 1205], 5.00th=[ 1401], 10.00th=[ 1975], 20.00th=[ 4817], | 30.00th=[ 9634], 40.00th=[ 20055], 50.00th=[ 30278], 60.00th=[ 41681], | 70.00th=[ 53740], 80.00th=[ 69731], 90.00th=[ 95945], 95.00th=[116917], | 99.00th=[189793], 99.50th=[210764], 99.90th=[283116], 99.95th=[417334], | 99.99th=[417334] bw ( KiB/s): min= 7, max= 140, per=25.21%, avg=48.40, stdev=21.89, samples=254 iops : min= 1, max= 35, avg=11.46, stdev= 5.51, samples=254 lat (usec) : 50=0.23%, 100=3.68%, 250=0.36%, 500=0.20%, 1000=0.13% lat (msec) : 2=5.18%, 4=3.87%, 10=6.74%, 20=9.80%, 50=37.70% lat (msec) : 100=25.33%, 250=6.58%, 500=0.20%, 750=0.03% cpu : usr=0.10%, sys=5.43%, ctx=6544, 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=144641: Fri Sep 11 06:23:09 2026 read: IOPS=11, BW=45.5KiB/s (46.6kB/s)(5940KiB/130534msec) clat (usec): min=31, max=360618, avg=42765.88, stdev=33147.67 lat (usec): min=31, max=360620, avg=42772.09, stdev=33143.94 clat percentiles (usec): | 1.00th=[ 58], 5.00th=[ 73], 10.00th=[ 11994], 20.00th=[ 20841], | 30.00th=[ 25822], 40.00th=[ 30802], 50.00th=[ 35914], 60.00th=[ 42206], | 70.00th=[ 50594], 80.00th=[ 60556], 90.00th=[ 82314], 95.00th=[ 96994], | 99.00th=[160433], 99.50th=[191890], 99.90th=[341836], 99.95th=[358613], | 99.99th=[358613] bw ( KiB/s): min= 6, max= 126, per=24.69%, avg=45.19, stdev=21.79, samples=255 iops : min= 1, max= 31, avg=10.65, stdev= 5.48, samples=255 write: IOPS=12, BW=48.6KiB/s (49.8kB/s)(6348KiB/130534msec); 0 zone resets clat (usec): min=774, max=581936, avg=41884.65, stdev=44427.27 lat (usec): min=774, max=581938, avg=41896.49, stdev=44446.41 clat percentiles (usec): | 1.00th=[ 1205], 5.00th=[ 1418], 10.00th=[ 2089], 20.00th=[ 5145], | 30.00th=[ 10421], 40.00th=[ 20579], 50.00th=[ 30802], 60.00th=[ 42206], | 70.00th=[ 54789], 80.00th=[ 70779], 90.00th=[ 95945], 95.00th=[119014], | 99.00th=[170918], 99.50th=[263193], 99.90th=[383779], 99.95th=[583009], | 99.99th=[583009] bw ( KiB/s): min= 7, max= 157, per=25.22%, avg=48.41, stdev=21.51, samples=254 iops : min= 1, max= 39, avg=11.46, stdev= 5.40, samples=254 lat (usec) : 50=0.20%, 100=3.48%, 250=0.23%, 500=0.03%, 750=0.13% lat (usec) : 1000=0.13% lat (msec) : 2=5.01%, 4=3.65%, 10=7.03%, 20=9.21%, 50=38.57% lat (msec) : 100=25.42%, 250=6.54%, 500=0.33%, 750=0.03% cpu : usr=0.09%, sys=5.19%, ctx=6582, 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=144643: Fri Sep 11 06:23:09 2026 read: IOPS=11, BW=46.8KiB/s (47.9kB/s)(6028KiB/128734msec) clat (usec): min=30, max=566933, avg=41900.91, stdev=33080.64 lat (usec): min=31, max=566934, avg=41904.82, stdev=33081.03 clat percentiles (usec): | 1.00th=[ 57], 5.00th=[ 71], 10.00th=[ 11338], 20.00th=[ 20579], | 30.00th=[ 25297], 40.00th=[ 30540], 50.00th=[ 36439], 60.00th=[ 42730], | 70.00th=[ 50070], 80.00th=[ 61080], 90.00th=[ 77071], 95.00th=[ 95945], | 99.00th=[141558], 99.50th=[200279], 99.90th=[242222], 99.95th=[566232], | 99.99th=[566232] bw ( KiB/s): min= 6, max= 119, per=25.33%, avg=46.36, stdev=21.66, samples=254 iops : min= 1, max= 29, avg=10.95, stdev= 5.44, samples=254 write: IOPS=12, BW=48.6KiB/s (49.8kB/s)(6260KiB/128734msec); 0 zone resets clat (usec): min=800, max=313216, avg=41550.15, stdev=42349.03 lat (usec): min=801, max=313218, avg=41556.93, stdev=42349.86 clat percentiles (usec): | 1.00th=[ 1205], 5.00th=[ 1401], 10.00th=[ 1647], 20.00th=[ 4555], | 30.00th=[ 9110], 40.00th=[ 20055], 50.00th=[ 31589], 60.00th=[ 41681], | 70.00th=[ 55313], 80.00th=[ 71828], 90.00th=[ 95945], 95.00th=[121111], | 99.00th=[193987], 99.50th=[219153], 99.90th=[291505], 99.95th=[312476], | 99.99th=[312476] bw ( KiB/s): min= 7, max= 117, per=25.08%, avg=48.15, stdev=21.85, samples=254 iops : min= 1, max= 29, avg=11.40, stdev= 5.49, samples=254 lat (usec) : 50=0.33%, 100=3.87%, 250=0.29%, 500=0.07%, 1000=0.23% lat (msec) : 2=5.79%, 4=2.96%, 10=7.36%, 20=8.76%, 50=38.41% lat (msec) : 100=25.13%, 250=6.64%, 500=0.13%, 750=0.03% cpu : usr=0.09%, sys=5.34%, ctx=6389, 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=144645: Fri Sep 11 06:23:09 2026 read: IOPS=11, BW=46.8KiB/s (47.9kB/s)(6052KiB/129286msec) clat (usec): min=35, max=607604, avg=42727.52, stdev=35073.15 lat (usec): min=35, max=607605, avg=42730.16, stdev=35073.21 clat percentiles (usec): | 1.00th=[ 56], 5.00th=[ 72], 10.00th=[ 9372], 20.00th=[ 20055], | 30.00th=[ 25822], 40.00th=[ 30540], 50.00th=[ 36439], 60.00th=[ 42730], | 70.00th=[ 51643], 80.00th=[ 61604], 90.00th=[ 80217], 95.00th=[ 98042], | 99.00th=[156238], 99.50th=[187696], 99.90th=[304088], 99.95th=[608175], | 99.99th=[608175] bw ( KiB/s): min= 6, max= 120, per=25.44%, avg=46.56, stdev=19.26, samples=254 iops : min= 1, max= 30, avg=11.00, stdev= 4.83, samples=254 write: IOPS=12, BW=48.2KiB/s (49.4kB/s)(6236KiB/129286msec); 0 zone resets clat (usec): min=982, max=321509, avg=41119.72, stdev=41010.41 lat (usec): min=983, max=321512, avg=41132.96, stdev=41015.26 clat percentiles (usec): | 1.00th=[ 1172], 5.00th=[ 1385], 10.00th=[ 1762], 20.00th=[ 5014], | 30.00th=[ 10552], 40.00th=[ 20579], 50.00th=[ 31851], 60.00th=[ 41681], | 70.00th=[ 54789], 80.00th=[ 69731], 90.00th=[ 94897], 95.00th=[116917], | 99.00th=[181404], 99.50th=[198181], 99.90th=[299893], 99.95th=[320865], | 99.99th=[320865] bw ( KiB/s): min= 7, max= 110, per=24.96%, avg=47.93, stdev=20.25, samples=254 iops : min= 1, max= 27, avg=11.34, stdev= 5.07, samples=254 lat (usec) : 50=0.36%, 100=3.61%, 250=0.55%, 500=0.03%, 750=0.03% lat (usec) : 1000=0.07% lat (msec) : 2=5.47%, 4=3.22%, 10=6.61%, 20=9.86%, 50=37.14% lat (msec) : 100=26.69%, 250=6.09%, 500=0.23%, 750=0.03% cpu : usr=0.10%, sys=5.57%, ctx=6655, 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=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=184KiB/s (188kB/s), 45.5KiB/s-46.8KiB/s (46.6kB/s-47.9kB/s), io=23.4MiB (24.6MB), run=128734-130534msec WRITE: bw=193KiB/s (197kB/s), 48.2KiB/s-48.7KiB/s (49.4kB/s-49.9kB/s), io=24.6MiB (25.7MB), run=128734-130534msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144638: Fri Sep 11 06:25:35 2026 read: IOPS=5, BW=21.7KiB/s (22.2kB/s)(5992KiB/275756msec) clat (msec): min=4, max=621, avg=39.10, stdev=42.35 lat (msec): min=4, max=621, avg=39.10, stdev=42.35 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 23], 50.00th=[ 27], 60.00th=[ 33], | 70.00th=[ 40], 80.00th=[ 53], 90.00th=[ 78], 95.00th=[ 102], | 99.00th=[ 226], 99.50th=[ 264], 99.90th=[ 426], 99.95th=[ 625], | 99.99th=[ 625] bw ( KiB/s): min= 7, max= 91, per=27.58%, avg=23.99, stdev=15.92, samples=481 iops : min= 1, max= 22, avg= 5.35, stdev= 3.99, samples=481 write: IOPS=5, BW=22.8KiB/s (23.4kB/s)(6296KiB/275756msec); 0 zone resets clat (msec): min=36, max=558, avg=137.69, stdev=65.42 lat (msec): min=36, max=558, avg=137.70, stdev=65.42 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 63], 10.00th=[ 73], 20.00th=[ 86], | 30.00th=[ 100], 40.00th=[ 110], 50.00th=[ 124], 60.00th=[ 136], | 70.00th=[ 157], 80.00th=[ 180], 90.00th=[ 228], 95.00th=[ 259], | 99.00th=[ 372], 99.50th=[ 405], 99.90th=[ 498], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 7, max= 63, per=24.84%, avg=22.60, stdev=10.34, samples=535 iops : min= 1, max= 15, avg= 5.00, stdev= 2.64, samples=535 lat (msec) : 10=2.73%, 20=13.41%, 50=23.08%, 100=23.14%, 250=33.95% lat (msec) : 500=3.61%, 750=0.07% cpu : usr=0.05%, sys=1.23%, ctx=5207, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144640: Fri Sep 11 06:25:35 2026 read: IOPS=5, BW=21.7KiB/s (22.2kB/s)(5940KiB/273875msec) clat (msec): min=6, max=653, avg=36.76, stdev=36.39 lat (msec): min=6, max=653, avg=36.76, stdev=36.40 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 22], 50.00th=[ 26], 60.00th=[ 32], | 70.00th=[ 39], 80.00th=[ 51], 90.00th=[ 78], 95.00th=[ 96], | 99.00th=[ 163], 99.50th=[ 182], 99.90th=[ 435], 99.95th=[ 651], | 99.99th=[ 651] bw ( KiB/s): min= 7, max= 87, per=28.44%, avg=24.74, stdev=16.18, samples=462 iops : min= 1, max= 21, avg= 5.54, stdev= 4.08, samples=462 write: IOPS=5, BW=23.2KiB/s (23.7kB/s)(6348KiB/273875msec); 0 zone resets clat (msec): min=34, max=553, avg=137.89, stdev=64.41 lat (msec): min=34, max=553, avg=137.89, stdev=64.41 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 64], 10.00th=[ 72], 20.00th=[ 86], | 30.00th=[ 97], 40.00th=[ 108], 50.00th=[ 122], 60.00th=[ 140], | 70.00th=[ 161], 80.00th=[ 186], 90.00th=[ 222], 95.00th=[ 262], | 99.00th=[ 347], 99.50th=[ 393], 99.90th=[ 502], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 7, max= 63, per=25.01%, avg=22.76, stdev=10.10, samples=535 iops : min= 1, max= 15, avg= 5.04, stdev= 2.56, samples=535 lat (msec) : 10=2.38%, 20=14.42%, 50=22.49%, 100=24.06%, 250=33.17% lat (msec) : 500=3.42%, 750=0.07% cpu : usr=0.05%, sys=1.22%, ctx=5212, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144642: Fri Sep 11 06:25:35 2026 read: IOPS=5, BW=21.9KiB/s (22.4kB/s)(6028KiB/275570msec) clat (msec): min=6, max=440, avg=39.12, stdev=37.77 lat (msec): min=6, max=440, avg=39.12, stdev=37.77 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 20], 40.00th=[ 24], 50.00th=[ 28], 60.00th=[ 34], | 70.00th=[ 40], 80.00th=[ 55], 90.00th=[ 82], 95.00th=[ 106], | 99.00th=[ 169], 99.50th=[ 226], 99.90th=[ 426], 99.95th=[ 443], | 99.99th=[ 443] bw ( KiB/s): min= 7, max= 95, per=27.07%, avg=23.55, stdev=16.28, samples=493 iops : min= 1, max= 23, avg= 5.24, stdev= 4.10, samples=493 write: IOPS=5, BW=22.7KiB/s (23.3kB/s)(6260KiB/275570msec); 0 zone resets clat (msec): min=39, max=704, avg=138.10, stdev=67.03 lat (msec): min=39, max=704, avg=138.11, stdev=67.04 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 62], 10.00th=[ 72], 20.00th=[ 87], | 30.00th=[ 100], 40.00th=[ 112], 50.00th=[ 126], 60.00th=[ 140], | 70.00th=[ 155], 80.00th=[ 180], 90.00th=[ 222], 95.00th=[ 268], | 99.00th=[ 372], 99.50th=[ 426], 99.90th=[ 558], 99.95th=[ 701], | 99.99th=[ 701] bw ( KiB/s): min= 7, max= 48, per=24.61%, avg=22.39, stdev=10.07, samples=537 iops : min= 1, max= 12, avg= 4.94, stdev= 2.55, samples=537 lat (msec) : 10=2.25%, 20=13.12%, 50=23.21%, 100=23.50%, 250=34.47% lat (msec) : 500=3.39%, 750=0.07% cpu : usr=0.05%, sys=1.28%, ctx=5289, 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=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=144644: Fri Sep 11 06:25:35 2026 read: IOPS=5, BW=22.1KiB/s (22.7kB/s)(6052KiB/273255msec) clat (msec): min=4, max=425, avg=36.95, stdev=36.60 lat (msec): min=4, max=425, avg=36.95, stdev=36.60 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 22], 50.00th=[ 26], 60.00th=[ 31], | 70.00th=[ 38], 80.00th=[ 50], 90.00th=[ 77], 95.00th=[ 103], | 99.00th=[ 182], 99.50th=[ 228], 99.90th=[ 384], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 7, max= 110, per=28.42%, avg=24.72, stdev=17.07, samples=472 iops : min= 1, max= 27, avg= 5.53, stdev= 4.30, samples=472 write: IOPS=5, BW=22.8KiB/s (23.4kB/s)(6236KiB/273255msec); 0 zone resets clat (msec): min=37, max=798, avg=139.12, stdev=66.55 lat (msec): min=37, max=798, avg=139.12, stdev=66.54 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 63], 10.00th=[ 73], 20.00th=[ 88], | 30.00th=[ 100], 40.00th=[ 111], 50.00th=[ 126], 60.00th=[ 140], | 70.00th=[ 157], 80.00th=[ 182], 90.00th=[ 222], 95.00th=[ 262], | 99.00th=[ 376], 99.50th=[ 405], 99.90th=[ 550], 99.95th=[ 802], | 99.99th=[ 802] bw ( KiB/s): min= 7, max= 63, per=24.54%, avg=22.33, stdev= 9.92, samples=536 iops : min= 1, max= 15, avg= 4.93, stdev= 2.52, samples=536 lat (msec) : 10=2.64%, 20=15.20%, 50=22.33%, 100=21.81%, 250=34.83% lat (msec) : 500=3.12%, 750=0.03%, 1000=0.03% cpu : usr=0.05%, sys=1.21%, ctx=5112, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=87.1KiB/s (89.2kB/s), 21.7KiB/s-22.1KiB/s (22.2kB/s-22.7kB/s), io=23.4MiB (24.6MB), run=273255-275756msec WRITE: bw=91.2KiB/s (93.4kB/s), 22.7KiB/s-23.2KiB/s (23.3kB/s-23.7kB/s), io=24.6MiB (25.7MB), run=273255-275756msec 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=144697: Fri Sep 11 06:26:17 2026 read: IOPS=12, BW=196KiB/s (201kB/s)(5920KiB/30164msec) clat (usec): min=40, max=209057, avg=44309.91, stdev=34072.05 lat (usec): min=40, max=209059, avg=44329.70, stdev=34085.88 clat percentiles (usec): | 1.00th=[ 50], 5.00th=[ 71], 10.00th=[ 84], 20.00th=[ 19006], | 30.00th=[ 27919], 40.00th=[ 33817], 50.00th=[ 40633], 60.00th=[ 49021], | 70.00th=[ 55313], 80.00th=[ 67634], 90.00th=[ 83362], 95.00th=[102237], | 99.00th=[177210], 99.50th=[198181], 99.90th=[208667], 99.95th=[208667], | 99.99th=[208667] bw ( KiB/s): min= 30, max= 477, per=24.94%, avg=196.29, stdev=82.80, samples=59 iops : min= 1, max= 29, avg=11.49, stdev= 5.24, samples=59 write: IOPS=13, BW=211KiB/s (216kB/s)(6368KiB/30164msec); 0 zone resets clat (usec): min=1338, max=356250, avg=33897.67, stdev=39173.95 lat (usec): min=1340, max=356252, avg=33900.37, stdev=39173.97 clat percentiles (usec): | 1.00th=[ 1729], 5.00th=[ 1991], 10.00th=[ 2769], 20.00th=[ 4817], | 30.00th=[ 8225], 40.00th=[ 11994], 50.00th=[ 20579], 60.00th=[ 27657], | 70.00th=[ 42730], 80.00th=[ 58459], 90.00th=[ 87557], 95.00th=[108528], | 99.00th=[170918], 99.50th=[185598], 99.90th=[354419], 99.95th=[354419], | 99.99th=[354419] bw ( KiB/s): min= 31, max= 604, per=25.49%, avg=211.03, stdev=104.53, samples=59 iops : min= 1, max= 37, avg=12.42, stdev= 6.59, samples=59 lat (usec) : 50=0.52%, 100=5.08%, 250=1.82%, 500=0.65%, 750=0.26% lat (msec) : 2=2.60%, 4=6.12%, 10=9.90%, 20=8.46%, 50=32.29% lat (msec) : 100=26.69%, 250=5.47%, 500=0.13% cpu : usr=0.06%, sys=6.10%, ctx=1567, 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=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=144698: Fri Sep 11 06:26:17 2026 read: IOPS=11, BW=189KiB/s (193kB/s)(5744KiB/30424msec) clat (usec): min=46, max=237236, avg=45861.13, stdev=35249.81 lat (usec): min=47, max=237238, avg=45862.65, stdev=35249.75 clat percentiles (usec): | 1.00th=[ 54], 5.00th=[ 75], 10.00th=[ 89], 20.00th=[ 19268], | 30.00th=[ 28705], 40.00th=[ 34341], 50.00th=[ 40633], 60.00th=[ 48497], | 70.00th=[ 57410], 80.00th=[ 67634], 90.00th=[ 89654], 95.00th=[104334], | 99.00th=[183501], 99.50th=[204473], 99.90th=[238027], 99.95th=[238027], | 99.99th=[238027] bw ( KiB/s): min= 62, max= 408, per=23.72%, avg=186.66, stdev=76.93, samples=59 iops : min= 3, max= 25, avg=10.90, stdev= 4.88, samples=59 write: IOPS=13, BW=215KiB/s (220kB/s)(6544KiB/30424msec); 0 zone resets clat (usec): min=1594, max=269984, avg=33820.94, stdev=36152.49 lat (usec): min=1595, max=269987, avg=33833.29, stdev=36166.96 clat percentiles (usec): | 1.00th=[ 1663], 5.00th=[ 2040], 10.00th=[ 2933], 20.00th=[ 5538], | 30.00th=[ 9372], 40.00th=[ 14746], 50.00th=[ 22676], 60.00th=[ 30802], | 70.00th=[ 41681], 80.00th=[ 56886], 90.00th=[ 81265], 95.00th=[104334], | 99.00th=[158335], 99.50th=[175113], 99.90th=[270533], 99.95th=[270533], | 99.99th=[270533] bw ( KiB/s): min= 61, max= 476, per=25.37%, avg=210.07, stdev=97.77, samples=59 iops : min= 3, max= 29, avg=12.34, stdev= 6.17, samples=59 lat (usec) : 50=0.26%, 100=4.95%, 250=0.91%, 500=0.26% lat (msec) : 2=2.60%, 4=4.95%, 10=9.38%, 20=11.20%, 50=35.81% lat (msec) : 100=23.83%, 250=5.73%, 500=0.13% cpu : usr=0.11%, sys=6.20%, ctx=1461, 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=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=144699: Fri Sep 11 06:26:17 2026 read: IOPS=12, BW=208KiB/s (213kB/s)(6256KiB/30117msec) clat (usec): min=36, max=216269, avg=41267.92, stdev=34311.35 lat (usec): min=36, max=216269, avg=41269.64, stdev=34311.45 clat percentiles (usec): | 1.00th=[ 46], 5.00th=[ 68], 10.00th=[ 77], 20.00th=[ 416], | 30.00th=[ 24511], 40.00th=[ 31851], 50.00th=[ 37487], 60.00th=[ 44303], | 70.00th=[ 51643], 80.00th=[ 64226], 90.00th=[ 85459], 95.00th=[104334], | 99.00th=[156238], 99.50th=[202376], 99.90th=[217056], 99.95th=[217056], | 99.99th=[217056] bw ( KiB/s): min= 62, max= 566, per=27.52%, avg=216.61, stdev=96.27, samples=56 iops : min= 3, max= 35, avg=12.77, stdev= 6.08, samples=56 write: IOPS=12, BW=200KiB/s (205kB/s)(6032KiB/30117msec); 0 zone resets clat (usec): min=1286, max=466483, avg=36420.07, stdev=47085.95 lat (usec): min=1288, max=466486, avg=36435.87, stdev=47077.54 clat percentiles (usec): | 1.00th=[ 1811], 5.00th=[ 2147], 10.00th=[ 3228], 20.00th=[ 5538], | 30.00th=[ 8717], 40.00th=[ 13698], 50.00th=[ 20579], 60.00th=[ 28181], | 70.00th=[ 40109], 80.00th=[ 58983], 90.00th=[ 87557], 95.00th=[115868], | 99.00th=[217056], 99.50th=[329253], 99.90th=[467665], 99.95th=[467665], | 99.99th=[467665] bw ( KiB/s): min= 30, max= 440, per=23.88%, avg=197.74, stdev=97.26, samples=58 iops : min= 1, max= 27, avg=11.59, stdev= 6.14, samples=58 lat (usec) : 50=1.04%, 100=7.81%, 250=1.30%, 500=0.13%, 750=0.13% lat (msec) : 2=2.08%, 4=4.95%, 10=10.16%, 20=9.64%, 50=34.51% lat (msec) : 100=22.27%, 250=5.73%, 500=0.26% cpu : usr=0.10%, sys=6.29%, ctx=1489, 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=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=144700: Fri Sep 11 06:26:17 2026 read: IOPS=12, BW=200KiB/s (204kB/s)(6032KiB/30235msec) clat (usec): min=37, max=257262, avg=44537.93, stdev=38033.82 lat (usec): min=38, max=257263, avg=44540.41, stdev=38033.99 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 67], 10.00th=[ 79], 20.00th=[ 13435], | 30.00th=[ 26870], 40.00th=[ 33162], 50.00th=[ 40109], 60.00th=[ 46400], | 70.00th=[ 54789], 80.00th=[ 66323], 90.00th=[ 87557], 95.00th=[111674], | 99.00th=[206570], 99.50th=[250610], 99.90th=[256902], 99.95th=[256902], | 99.99th=[256902] bw ( KiB/s): min= 63, max= 381, per=25.16%, avg=198.03, stdev=70.79, samples=59 iops : min= 3, max= 23, avg=11.59, stdev= 4.47, samples=59 write: IOPS=12, BW=207KiB/s (212kB/s)(6256KiB/30235msec); 0 zone resets clat (usec): min=1616, max=262342, avg=33763.94, stdev=37414.26 lat (usec): min=1620, max=262344, avg=33774.25, stdev=37409.29 clat percentiles (usec): | 1.00th=[ 1680], 5.00th=[ 2073], 10.00th=[ 2573], 20.00th=[ 5211], | 30.00th=[ 8094], 40.00th=[ 11469], 50.00th=[ 17957], 60.00th=[ 27395], | 70.00th=[ 41681], 80.00th=[ 63177], 90.00th=[ 83362], 95.00th=[111674], | 99.00th=[147850], 99.50th=[196084], 99.90th=[263193], 99.95th=[263193], | 99.99th=[263193] bw ( KiB/s): min= 31, max= 439, per=25.42%, avg=210.50, stdev=92.82, samples=58 iops : min= 1, max= 27, avg=12.40, stdev= 5.89, samples=58 lat (usec) : 50=0.39%, 100=6.77%, 250=1.43%, 500=0.26%, 750=0.39% lat (msec) : 2=2.34%, 4=6.64%, 10=10.42%, 20=9.51%, 50=30.60% lat (msec) : 100=24.74%, 250=6.25%, 500=0.26% cpu : usr=0.13%, sys=6.31%, ctx=1500, 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=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=787KiB/s (806kB/s), 189KiB/s-208KiB/s (193kB/s-213kB/s), io=23.4MiB (24.5MB), run=30117-30424msec WRITE: bw=828KiB/s (848kB/s), 200KiB/s-215KiB/s (205kB/s-220kB/s), io=24.6MiB (25.8MB), run=30117-30424msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144703: Fri Sep 11 06:26:57 2026 read: IOPS=5, BW=85.0KiB/s (87.0kB/s)(5920KiB/69642msec) clat (msec): min=7, max=345, avg=41.07, stdev=42.59 lat (msec): min=7, max=345, avg=41.07, stdev=42.59 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 21], 40.00th=[ 24], 50.00th=[ 28], 60.00th=[ 33], | 70.00th=[ 39], 80.00th=[ 52], 90.00th=[ 83], 95.00th=[ 126], | 99.00th=[ 247], 99.50th=[ 292], 99.90th=[ 347], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 31, max= 414, per=27.17%, avg=92.65, stdev=63.90, samples=124 iops : min= 1, max= 25, avg= 5.00, stdev= 4.03, samples=124 write: IOPS=5, BW=91.4KiB/s (93.6kB/s)(6368KiB/69642msec); 0 zone resets clat (msec): min=41, max=630, avg=136.31, stdev=67.20 lat (msec): min=41, max=630, avg=136.33, stdev=67.20 clat percentiles (msec): | 1.00th=[ 52], 5.00th=[ 66], 10.00th=[ 77], 20.00th=[ 90], | 30.00th=[ 102], 40.00th=[ 110], 50.00th=[ 120], 60.00th=[ 132], | 70.00th=[ 146], 80.00th=[ 174], 90.00th=[ 218], 95.00th=[ 262], | 99.00th=[ 372], 99.50th=[ 510], 99.90th=[ 634], 99.95th=[ 634], | 99.99th=[ 634] bw ( KiB/s): min= 31, max= 160, per=25.82%, avg=92.69, stdev=37.97, samples=134 iops : min= 1, max= 10, avg= 4.99, stdev= 2.45, samples=134 lat (msec) : 10=1.30%, 20=11.72%, 50=25.52%, 100=21.74%, 250=35.81% lat (msec) : 500=3.65%, 750=0.26% cpu : usr=0.05%, sys=1.36%, ctx=1305, 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=144704: Fri Sep 11 06:26:57 2026 read: IOPS=5, BW=81.0KiB/s (83.0kB/s)(5744KiB/70049msec) clat (msec): min=8, max=275, avg=41.74, stdev=39.04 lat (msec): min=8, max=275, avg=41.74, stdev=39.04 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 21], 40.00th=[ 25], 50.00th=[ 31], 60.00th=[ 35], | 70.00th=[ 43], 80.00th=[ 57], 90.00th=[ 85], 95.00th=[ 120], | 99.00th=[ 224], 99.50th=[ 275], 99.90th=[ 275], 99.95th=[ 275], | 99.99th=[ 275] bw ( KiB/s): min= 29, max= 319, per=27.74%, avg=94.58, stdev=58.43, samples=118 iops : min= 1, max= 19, avg= 5.11, stdev= 3.69, samples=118 write: IOPS=5, BW=93.4KiB/s (95.7kB/s)(6544KiB/70049msec); 0 zone resets clat (msec): min=47, max=511, avg=134.22, stdev=63.05 lat (msec): min=47, max=511, avg=134.22, stdev=63.05 clat percentiles (msec): | 1.00th=[ 51], 5.00th=[ 67], 10.00th=[ 74], 20.00th=[ 87], | 30.00th=[ 100], 40.00th=[ 108], 50.00th=[ 123], 60.00th=[ 133], | 70.00th=[ 146], 80.00th=[ 165], 90.00th=[ 220], 95.00th=[ 253], | 99.00th=[ 351], 99.50th=[ 388], 99.90th=[ 510], 99.95th=[ 510], | 99.99th=[ 510] bw ( KiB/s): min= 29, max= 192, per=26.41%, avg=94.83, stdev=36.95, samples=134 iops : min= 1, max= 12, avg= 5.13, stdev= 2.36, samples=134 lat (msec) : 10=0.78%, 20=12.63%, 50=22.53%, 100=23.83%, 250=37.24% lat (msec) : 500=2.86%, 750=0.13% cpu : usr=0.06%, sys=1.36%, ctx=1289, 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=144705: Fri Sep 11 06:26:57 2026 read: IOPS=5, BW=93.7KiB/s (95.0kB/s)(6256KiB/66745msec) clat (msec): min=7, max=304, avg=37.99, stdev=35.50 lat (msec): min=7, max=304, avg=37.99, stdev=35.50 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 24], 50.00th=[ 28], 60.00th=[ 33], | 70.00th=[ 40], 80.00th=[ 50], 90.00th=[ 70], 95.00th=[ 103], | 99.00th=[ 205], 99.50th=[ 245], 99.90th=[ 305], 99.95th=[ 305], | 99.99th=[ 305] bw ( KiB/s): min= 30, max= 349, per=30.46%, avg=103.87, stdev=65.59, samples=119 iops : min= 1, max= 21, avg= 5.71, stdev= 4.17, samples=119 write: IOPS=5, BW=90.4KiB/s (92.5kB/s)(6032KiB/66745msec); 0 zone resets clat (msec): min=51, max=447, avg=137.39, stdev=64.80 lat (msec): min=51, max=447, avg=137.40, stdev=64.80 clat percentiles (msec): | 1.00th=[ 55], 5.00th=[ 67], 10.00th=[ 74], 20.00th=[ 87], | 30.00th=[ 95], 40.00th=[ 109], 50.00th=[ 122], 60.00th=[ 138], | 70.00th=[ 159], 80.00th=[ 180], 90.00th=[ 213], 95.00th=[ 257], | 99.00th=[ 380], 99.50th=[ 443], 99.90th=[ 447], 99.95th=[ 447], | 99.99th=[ 447] bw ( KiB/s): min= 31, max= 191, per=25.03%, avg=89.85, stdev=36.59, samples=131 iops : min= 1, max= 11, avg= 4.82, stdev= 2.40, samples=131 lat (msec) : 10=1.04%, 20=13.80%, 50=26.56%, 100=22.92%, 250=32.68% lat (msec) : 500=2.99% cpu : usr=0.06%, sys=1.37%, ctx=1390, 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=144706: Fri Sep 11 06:26:57 2026 read: IOPS=5, BW=87.2KiB/s (89.3kB/s)(6032KiB/69143msec) clat (msec): min=7, max=403, avg=46.28, stdev=48.04 lat (msec): min=7, max=403, avg=46.28, stdev=48.04 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 13], 10.00th=[ 15], 20.00th=[ 19], | 30.00th=[ 24], 40.00th=[ 27], 50.00th=[ 32], 60.00th=[ 38], | 70.00th=[ 44], 80.00th=[ 58], 90.00th=[ 97], 95.00th=[ 125], | 99.00th=[ 253], 99.50th=[ 384], 99.90th=[ 405], 99.95th=[ 405], | 99.99th=[ 405] bw ( KiB/s): min= 31, max= 287, per=28.12%, avg=95.90, stdev=58.83, samples=124 iops : min= 1, max= 17, avg= 5.19, stdev= 3.70, samples=124 write: IOPS=5, BW=90.5KiB/s (92.7kB/s)(6256KiB/69143msec); 0 zone resets clat (msec): min=44, max=561, avg=131.82, stdev=57.92 lat (msec): min=44, max=564, avg=131.84, stdev=57.97 clat percentiles (msec): | 1.00th=[ 53], 5.00th=[ 65], 10.00th=[ 75], 20.00th=[ 88], | 30.00th=[ 96], 40.00th=[ 108], 50.00th=[ 121], 60.00th=[ 133], | 70.00th=[ 146], 80.00th=[ 169], 90.00th=[ 209], 95.00th=[ 228], | 99.00th=[ 317], 99.50th=[ 426], 99.90th=[ 558], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 31, max= 192, per=25.69%, avg=92.22, stdev=38.25, samples=134 iops : min= 1, max= 12, avg= 4.96, stdev= 2.44, samples=134 lat (msec) : 10=0.78%, 20=10.16%, 50=26.69%, 100=23.96%, 250=36.33% lat (msec) : 500=1.95%, 750=0.13% cpu : usr=0.05%, sys=1.46%, ctx=1422, 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=342KiB/s (350kB/s), 81.0KiB/s-93.7KiB/s (83.0kB/s-95.0kB/s), io=23.4MiB (24.5MB), run=66745-70049msec WRITE: bw=360KiB/s (368kB/s), 90.4KiB/s-93.4KiB/s (92.5kB/s-95.7kB/s), io=24.6MiB (25.8MB), run=66745-70049msec 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=144733: Fri Sep 11 06:27:16 2026 read: IOPS=1, BW=1509KiB/s (1545kB/s)(7168KiB/4751msec) clat (msec): min=112, max=659, avg=243.62, stdev=193.09 lat (msec): min=112, max=659, avg=243.62, stdev=193.09 clat percentiles (msec): | 1.00th=[ 113], 5.00th=[ 113], 10.00th=[ 113], 20.00th=[ 115], | 30.00th=[ 127], 40.00th=[ 127], 50.00th=[ 192], 60.00th=[ 249], | 70.00th=[ 249], 80.00th=[ 253], 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= 1436, max= 4087, per=75.37%, avg=2883.50, stdev=1371.62, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 write: IOPS=1, BW=1078KiB/s (1104kB/s)(5120KiB/4751msec); 0 zone resets clat (msec): min=211, max=1061, avg=600.04, stdev=306.83 lat (msec): min=211, max=1061, avg=600.16, stdev=306.82 clat percentiles (msec): | 1.00th=[ 211], 5.00th=[ 211], 10.00th=[ 211], 20.00th=[ 211], | 30.00th=[ 498], 40.00th=[ 498], 50.00th=[ 592], 60.00th=[ 592], | 70.00th=[ 642], 80.00th=[ 642], 90.00th=[ 1062], 95.00th=[ 1062], | 99.00th=[ 1062], 99.50th=[ 1062], 99.90th=[ 1062], 99.95th=[ 1062], | 99.99th=[ 1062] bw ( KiB/s): min= 2011, max= 4096, per=50.71%, avg=2716.67, stdev=1194.64, samples=3 iops : min= 1, max= 4, avg= 2.00, stdev= 1.73, samples=3 lat (msec) : 250=50.00%, 500=16.67%, 750=25.00%, 2000=8.33% cpu : usr=0.02%, sys=2.67%, ctx=45, 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=144735: Fri Sep 11 06:27:16 2026 read: IOPS=0, BW=383KiB/s (392kB/s)(2048KiB/5352msec) clat (msec): min=85, max=114, avg=100.00, stdev=20.28 lat (msec): min=85, max=114, avg=100.01, stdev=20.28 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 86], 10.00th=[ 86], 20.00th=[ 86], | 30.00th=[ 86], 40.00th=[ 86], 50.00th=[ 86], 60.00th=[ 115], | 70.00th=[ 115], 80.00th=[ 115], 90.00th=[ 115], 95.00th=[ 115], | 99.00th=[ 115], 99.50th=[ 115], 99.90th=[ 115], 99.95th=[ 115], | 99.99th=[ 115] bw ( KiB/s): min= 1659, max= 1988, per=47.66%, avg=1823.50, stdev=232.64, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1913KiB/s (1959kB/s)(10.0MiB/5352msec); 0 zone resets clat (msec): min=189, max=1031, avg=505.90, stdev=327.74 lat (msec): min=189, max=1031, avg=506.04, stdev=327.71 clat percentiles (msec): | 1.00th=[ 190], 5.00th=[ 190], 10.00th=[ 190], 20.00th=[ 192], | 30.00th=[ 215], 40.00th=[ 245], 50.00th=[ 271], 60.00th=[ 575], | 70.00th=[ 592], 80.00th=[ 869], 90.00th=[ 885], 95.00th=[ 1028], | 99.00th=[ 1028], 99.50th=[ 1028], 99.90th=[ 1028], 99.95th=[ 1028], | 99.99th=[ 1028] bw ( KiB/s): min= 1988, max= 6095, per=48.68%, avg=2607.86, stdev=1537.83, samples=7 iops : min= 1, max= 5, avg= 1.71, stdev= 1.50, samples=7 lat (msec) : 100=8.33%, 250=41.67%, 500=8.33%, 750=16.67%, 1000=16.67% lat (msec) : 2000=8.33% cpu : usr=0.02%, sys=2.52%, ctx=77, 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=144736: Fri Sep 11 06:27:16 2026 read: IOPS=1, BW=1539KiB/s (1576kB/s)(6144KiB/3991msec) clat (msec): min=116, max=389, avg=229.50, stdev=105.56 lat (msec): min=116, max=389, avg=229.50, stdev=105.56 clat percentiles (msec): | 1.00th=[ 117], 5.00th=[ 117], 10.00th=[ 117], 20.00th=[ 140], | 30.00th=[ 140], 40.00th=[ 176], 50.00th=[ 176], 60.00th=[ 251], | 70.00th=[ 305], 80.00th=[ 305], 90.00th=[ 388], 95.00th=[ 388], | 99.00th=[ 388], 99.50th=[ 388], 99.90th=[ 388], 99.95th=[ 388], | 99.99th=[ 388] bw ( KiB/s): min= 2048, max= 4087, per=88.71%, avg=3394.00, stdev=1165.84, samples=3 iops : min= 2, max= 3, avg= 2.67, stdev= 0.58, samples=3 write: IOPS=1, BW=1539KiB/s (1576kB/s)(6144KiB/3991msec); 0 zone resets clat (msec): min=227, max=817, avg=391.49, stdev=222.19 lat (msec): min=227, max=817, avg=391.68, stdev=222.13 clat percentiles (msec): | 1.00th=[ 228], 5.00th=[ 228], 10.00th=[ 228], 20.00th=[ 230], | 30.00th=[ 230], 40.00th=[ 317], 50.00th=[ 317], 60.00th=[ 321], | 70.00th=[ 435], 80.00th=[ 435], 90.00th=[ 818], 95.00th=[ 818], | 99.00th=[ 818], 99.50th=[ 818], 99.90th=[ 818], 99.95th=[ 818], | 99.99th=[ 818] bw ( KiB/s): min= 1738, max= 2043, per=36.91%, avg=1977.20, stdev=133.97, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 250=41.67%, 500=50.00%, 1000=8.33% cpu : usr=0.00%, sys=3.16%, ctx=58, 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=144739: Fri Sep 11 06:27:16 2026 read: IOPS=0, BW=1013KiB/s (1037kB/s)(5120KiB/5054msec) clat (msec): min=114, max=204, avg=146.00, stdev=35.90 lat (msec): min=114, max=204, avg=146.00, stdev=35.90 clat percentiles (msec): | 1.00th=[ 115], 5.00th=[ 115], 10.00th=[ 115], 20.00th=[ 115], | 30.00th=[ 118], 40.00th=[ 118], 50.00th=[ 142], 60.00th=[ 142], | 70.00th=[ 150], 80.00th=[ 150], 90.00th=[ 205], 95.00th=[ 205], | 99.00th=[ 205], 99.50th=[ 205], 99.90th=[ 205], 99.95th=[ 205], | 99.99th=[ 205] bw ( KiB/s): min= 1988, max= 6144, per=100.00%, avg=4066.00, stdev=2938.74, samples=2 iops : min= 1, max= 6, avg= 3.50, stdev= 3.54, samples=2 write: IOPS=1, BW=1418KiB/s (1452kB/s)(7168KiB/5054msec); 0 zone resets clat (msec): min=139, max=1607, avg=610.18, stdev=537.99 lat (msec): min=139, max=1607, avg=610.29, stdev=538.00 clat percentiles (msec): | 1.00th=[ 140], 5.00th=[ 140], 10.00th=[ 140], 20.00th=[ 215], | 30.00th=[ 232], 40.00th=[ 232], 50.00th=[ 334], 60.00th=[ 810], | 70.00th=[ 810], 80.00th=[ 936], 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= 1633, max= 2043, per=36.47%, avg=1953.80, stdev=179.50, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 250=66.67%, 500=8.33%, 1000=16.67%, 2000=8.33% cpu : usr=0.02%, sys=3.29%, ctx=83, 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=3827KiB/s (3918kB/s), 383KiB/s-1539KiB/s (392kB/s-1576kB/s), io=20.0MiB (20.0MB), run=3991-5352msec WRITE: bw=5357KiB/s (5486kB/s), 1078KiB/s-1913KiB/s (1104kB/s-1959kB/s), io=28.0MiB (29.4MB), run=3991-5352msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144732: Fri Sep 11 06:27:16 2026 read: IOPS=1, BW=1510KiB/s (1547kB/s)(7168KiB/4746msec) clat (usec): min=545, max=595644, avg=242542.33, stdev=180854.31 lat (usec): min=547, max=595647, avg=242544.28, stdev=180854.76 clat percentiles (usec): | 1.00th=[ 545], 5.00th=[ 545], 10.00th=[ 545], 20.00th=[168821], | 30.00th=[175113], 40.00th=[175113], 50.00th=[210764], 60.00th=[258999], | 70.00th=[258999], 80.00th=[287310], 90.00th=[599786], 95.00th=[599786], | 99.00th=[599786], 99.50th=[599786], 99.90th=[599786], 99.95th=[599786], | 99.99th=[599786] bw ( KiB/s): min= 1885, max= 6119, per=100.00%, avg=4030.33, stdev=2117.57, samples=3 iops : min= 1, max= 5, avg= 3.00, stdev= 2.00, samples=3 write: IOPS=1, BW=1079KiB/s (1105kB/s)(5120KiB/4746msec); 0 zone resets clat (msec): min=416, max=901, avg=598.56, stdev=182.36 lat (msec): min=416, max=901, avg=598.90, stdev=182.22 clat percentiles (msec): | 1.00th=[ 418], 5.00th=[ 418], 10.00th=[ 418], 20.00th=[ 418], | 30.00th=[ 514], 40.00th=[ 514], 50.00th=[ 584], 60.00th=[ 584], | 70.00th=[ 584], 80.00th=[ 584], 90.00th=[ 902], 95.00th=[ 902], | 99.00th=[ 902], 99.50th=[ 902], 99.90th=[ 902], 99.95th=[ 902], | 99.99th=[ 902] bw ( KiB/s): min= 1885, max= 1969, per=36.33%, avg=1941.25, stdev=38.06, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 lat (usec) : 750=8.33% lat (msec) : 250=25.00%, 500=25.00%, 750=33.33%, 1000=8.33% cpu : usr=0.02%, sys=9.61%, ctx=185, 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=144734: Fri Sep 11 06:27:16 2026 read: IOPS=0, BW=382KiB/s (391kB/s)(2048KiB/5365msec) clat (msec): min=281, max=302, avg=292.43, stdev=14.87 lat (msec): min=281, max=302, avg=292.44, stdev=14.87 clat percentiles (msec): | 1.00th=[ 284], 5.00th=[ 284], 10.00th=[ 284], 20.00th=[ 284], | 30.00th=[ 284], 40.00th=[ 284], 50.00th=[ 284], 60.00th=[ 305], | 70.00th=[ 305], 80.00th=[ 305], 90.00th=[ 305], 95.00th=[ 305], | 99.00th=[ 305], 99.50th=[ 305], 99.90th=[ 305], 99.95th=[ 305], | 99.99th=[ 305] bw ( KiB/s): min= 1370, max= 2019, per=44.39%, avg=1694.50, stdev=458.91, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1909KiB/s (1954kB/s)(10.0MiB/5365msec); 0 zone resets clat (msec): min=113, max=1050, avg=467.27, stdev=346.99 lat (msec): min=113, max=1050, avg=467.76, stdev=347.11 clat percentiles (msec): | 1.00th=[ 114], 5.00th=[ 114], 10.00th=[ 114], 20.00th=[ 165], | 30.00th=[ 182], 40.00th=[ 205], 50.00th=[ 234], 60.00th=[ 443], | 70.00th=[ 567], 80.00th=[ 835], 90.00th=[ 885], 95.00th=[ 1053], | 99.00th=[ 1053], 99.50th=[ 1053], 99.90th=[ 1053], 99.95th=[ 1053], | 99.99th=[ 1053] bw ( KiB/s): min= 1815, max= 4039, per=42.90%, avg=2292.33, stdev=858.54, samples=6 iops : min= 1, max= 3, avg= 1.33, stdev= 0.82, samples=6 lat (msec) : 250=41.67%, 500=25.00%, 750=8.33%, 1000=16.67%, 2000=8.33% cpu : usr=0.00%, sys=10.29%, ctx=190, 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=144737: Fri Sep 11 06:27:16 2026 read: IOPS=1, BW=1367KiB/s (1400kB/s)(6144KiB/4493msec) clat (usec): min=537, max=495823, avg=216778.57, stdev=191422.01 lat (usec): min=538, max=495825, avg=216780.35, stdev=191421.88 clat percentiles (usec): | 1.00th=[ 537], 5.00th=[ 537], 10.00th=[ 537], 20.00th=[ 758], | 30.00th=[ 758], 40.00th=[214959], 50.00th=[214959], 60.00th=[291505], | 70.00th=[295699], 80.00th=[295699], 90.00th=[497026], 95.00th=[497026], | 99.00th=[497026], 99.50th=[497026], 99.90th=[497026], 99.95th=[497026], | 99.99th=[497026] bw ( KiB/s): min= 1885, max= 3750, per=63.18%, avg=2411.75, stdev=894.50, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1367KiB/s (1400kB/s)(6144KiB/4493msec); 0 zone resets clat (msec): min=249, max=971, avg=483.21, stdev=263.37 lat (msec): min=251, max=971, avg=483.69, stdev=263.04 clat percentiles (msec): | 1.00th=[ 251], 5.00th=[ 251], 10.00th=[ 251], 20.00th=[ 330], | 30.00th=[ 330], 40.00th=[ 351], 50.00th=[ 351], 60.00th=[ 418], | 70.00th=[ 584], 80.00th=[ 584], 90.00th=[ 969], 95.00th=[ 969], | 99.00th=[ 969], 99.50th=[ 969], 99.90th=[ 969], 99.95th=[ 969], | 99.99th=[ 969] bw ( KiB/s): min= 1885, max= 2043, per=37.02%, avg=1978.60, stdev=65.41, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (usec) : 750=8.33%, 1000=8.33% lat (msec) : 250=16.67%, 500=50.00%, 750=8.33%, 1000=8.33% cpu : usr=0.00%, sys=9.35%, ctx=182, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144738: Fri Sep 11 06:27:16 2026 read: IOPS=1, BW=1115KiB/s (1142kB/s)(5120KiB/4592msec) clat (usec): min=1840, max=404572, avg=175814.12, stdev=175829.58 lat (usec): min=1842, max=404574, avg=175816.23, stdev=175829.67 clat percentiles (usec): | 1.00th=[ 1844], 5.00th=[ 1844], 10.00th=[ 1844], 20.00th=[ 1844], | 30.00th=[ 4948], 40.00th=[ 4948], 50.00th=[183501], 60.00th=[183501], | 70.00th=[283116], 80.00th=[283116], 90.00th=[404751], 95.00th=[404751], | 99.00th=[404751], 99.50th=[404751], 99.90th=[404751], 99.95th=[404751], | 99.99th=[404751] bw ( KiB/s): min= 7501, max= 7501, per=100.00%, avg=7501.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=1, BW=1561KiB/s (1598kB/s)(7168KiB/4592msec); 0 zone resets clat (msec): min=186, max=759, avg=498.03, stdev=226.29 lat (msec): min=186, max=759, avg=498.12, stdev=226.31 clat percentiles (msec): | 1.00th=[ 186], 5.00th=[ 186], 10.00th=[ 186], 20.00th=[ 257], | 30.00th=[ 430], 40.00th=[ 430], 50.00th=[ 477], 60.00th=[ 651], | 70.00th=[ 651], 80.00th=[ 735], 90.00th=[ 760], 95.00th=[ 760], | 99.00th=[ 760], 99.50th=[ 760], 99.90th=[ 760], 99.95th=[ 760], | 99.99th=[ 760] bw ( KiB/s): min= 1809, max= 2043, per=36.23%, avg=1936.17, stdev=80.04, samples=6 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=6 lat (msec) : 2=8.33%, 10=8.33%, 250=16.67%, 500=41.67%, 750=16.67% lat (msec) : 1000=8.33% cpu : usr=0.00%, sys=8.43%, ctx=111, 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=3817KiB/s (3909kB/s), 382KiB/s-1510KiB/s (391kB/s-1547kB/s), io=20.0MiB (20.0MB), run=4493-5365msec WRITE: bw=5344KiB/s (5473kB/s), 1079KiB/s-1909KiB/s (1105kB/s-1954kB/s), io=28.0MiB (29.4MB), run=4493-5365msec 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=144751: Fri Sep 11 06:27:32 2026 read: IOPS=1, BW=4886KiB/s (5003kB/s)(12.0MiB/2515msec) clat (msec): min=555, max=1149, avg=837.58, stdev=298.19 lat (msec): min=555, max=1149, avg=837.58, stdev=298.19 clat percentiles (msec): | 1.00th=[ 558], 5.00th=[ 558], 10.00th=[ 558], 20.00th=[ 558], | 30.00th=[ 558], 40.00th=[ 810], 50.00th=[ 810], 60.00th=[ 810], | 70.00th=[ 1150], 80.00th=[ 1150], 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= 7713, max= 8110, per=100.00%, avg=7911.50, stdev=280.72, 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=15.19%, ctx=247, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144752: Fri Sep 11 06:27:32 2026 read: IOPS=0, BW=972KiB/s (995kB/s)(4096KiB/4216msec) clat (nsec): min=696278k, max=696278k, avg=696278089.00, stdev= 0.00 lat (nsec): min=696282k, max=696282k, avg=696282060.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 701], 5.00th=[ 701], 10.00th=[ 701], 20.00th=[ 701], | 30.00th=[ 701], 40.00th=[ 701], 50.00th=[ 701], 60.00th=[ 701], | 70.00th=[ 701], 80.00th=[ 701], 90.00th=[ 701], 95.00th=[ 701], | 99.00th=[ 701], 99.50th=[ 701], 99.90th=[ 701], 99.95th=[ 701], | 99.99th=[ 701] bw ( KiB/s): min= 7713, max= 7713, per=100.00%, avg=7713.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=1943KiB/s (1990kB/s)(8192KiB/4216msec); 0 zone resets clat (msec): min=1344, max=2167, avg=1756.18, stdev=582.13 lat (msec): min=1344, max=2168, avg=1756.66, stdev=582.48 clat percentiles (msec): | 1.00th=[ 1351], 5.00th=[ 1351], 10.00th=[ 1351], 20.00th=[ 1351], | 30.00th=[ 1351], 40.00th=[ 1351], 50.00th=[ 1351], 60.00th=[ 2165], | 70.00th=[ 2165], 80.00th=[ 2165], 90.00th=[ 2165], 95.00th=[ 2165], | 99.00th=[ 2165], 99.50th=[ 2165], 99.90th=[ 2165], 99.95th=[ 2165], | 99.99th=[ 2165] 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 lat (msec) : 750=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=3.84%, ctx=72, 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=144753: Fri Sep 11 06:27:32 2026 write: IOPS=0, BW=2880KiB/s (2950kB/s)(12.0MiB/4266msec); 0 zone resets clat (msec): min=434, max=1975, avg=1420.22, stdev=856.33 lat (msec): min=434, max=1976, avg=1420.61, stdev=856.34 clat percentiles (msec): | 1.00th=[ 435], 5.00th=[ 435], 10.00th=[ 435], 20.00th=[ 435], | 30.00th=[ 435], 40.00th=[ 1854], 50.00th=[ 1854], 60.00th=[ 1854], | 70.00th=[ 1972], 80.00th=[ 1972], 90.00th=[ 1972], 95.00th=[ 1972], | 99.00th=[ 1972], 99.50th=[ 1972], 99.90th=[ 1972], 99.95th=[ 1972], | 99.99th=[ 1972] bw ( KiB/s): min= 8110, max= 8159, per=100.00%, avg=8134.50, stdev=34.65, 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=0.00%, sys=2.95%, ctx=37, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144754: Fri Sep 11 06:27:32 2026 write: IOPS=0, BW=3994KiB/s (4089kB/s)(12.0MiB/3077msec); 0 zone resets clat (msec): min=418, max=1984, avg=1024.51, stdev=840.72 lat (msec): min=419, max=1984, avg=1025.04, stdev=840.74 clat percentiles (msec): | 1.00th=[ 418], 5.00th=[ 418], 10.00th=[ 418], 20.00th=[ 418], | 30.00th=[ 418], 40.00th=[ 667], 50.00th=[ 667], 60.00th=[ 667], | 70.00th=[ 1989], 80.00th=[ 1989], 90.00th=[ 1989], 95.00th=[ 1989], | 99.00th=[ 1989], 99.50th=[ 1989], 99.90th=[ 1989], 99.95th=[ 1989], | 99.99th=[ 1989] bw ( KiB/s): min= 7713, max= 7713, per=100.00%, avg=7713.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.00%, sys=4.26%, ctx=70, 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=3886KiB/s (3979kB/s), 972KiB/s-4886KiB/s (995kB/s-5003kB/s), io=16.0MiB (16.8MB), run=2515-4216msec WRITE: bw=7681KiB/s (7866kB/s), 1943KiB/s-3994KiB/s (1990kB/s-4089kB/s), io=32.0MiB (33.6MB), run=3077-4266msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144746: Fri Sep 11 06:27:33 2026 read: IOPS=0, BW=3859KiB/s (3952kB/s)(12.0MiB/3184msec) clat (msec): min=823, max=1136, avg=1010.37, stdev=164.78 lat (msec): min=823, max=1136, avg=1010.37, stdev=164.78 clat percentiles (msec): | 1.00th=[ 827], 5.00th=[ 827], 10.00th=[ 827], 20.00th=[ 827], | 30.00th=[ 827], 40.00th=[ 1070], 50.00th=[ 1070], 60.00th=[ 1070], | 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= 8094, max= 8143, per=100.00%, avg=8118.50, stdev=34.65, 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=3.11%, ctx=59, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144747: Fri Sep 11 06:27:33 2026 read: IOPS=0, BW=1100KiB/s (1126kB/s)(4096KiB/3725msec) clat (nsec): min=333686k, max=333686k, avg=333686399.00, stdev= 0.00 lat (nsec): min=333688k, max=333688k, avg=333688066.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 334], 5.00th=[ 334], 10.00th=[ 334], 20.00th=[ 334], | 30.00th=[ 334], 40.00th=[ 334], 50.00th=[ 334], 60.00th=[ 334], | 70.00th=[ 334], 80.00th=[ 334], 90.00th=[ 334], 95.00th=[ 334], | 99.00th=[ 334], 99.50th=[ 334], 99.90th=[ 334], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 6617, max= 6617, per=100.00%, avg=6617.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2199KiB/s (2252kB/s)(8192KiB/3725msec); 0 zone resets clat (msec): min=1485, max=1669, avg=1577.58, stdev=130.23 lat (msec): min=1486, max=1669, avg=1578.48, stdev=129.42 clat percentiles (msec): | 1.00th=[ 1485], 5.00th=[ 1485], 10.00th=[ 1485], 20.00th=[ 1485], | 30.00th=[ 1485], 40.00th=[ 1485], 50.00th=[ 1485], 60.00th=[ 1670], | 70.00th=[ 1670], 80.00th=[ 1670], 90.00th=[ 1670], 95.00th=[ 1670], | 99.00th=[ 1670], 99.50th=[ 1670], 99.90th=[ 1670], 99.95th=[ 1670], | 99.99th=[ 1670] bw ( KiB/s): min= 7968, max= 7968, per=100.00%, avg=7968.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.00%, sys=4.19%, ctx=59, 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=144749: Fri Sep 11 06:27:33 2026 write: IOPS=0, BW=2538KiB/s (2599kB/s)(12.0MiB/4841msec); 0 zone resets clat (msec): min=838, max=2000, avg=1564.42, stdev=632.91 lat (msec): min=838, max=2001, avg=1564.81, stdev=632.93 clat percentiles (msec): | 1.00th=[ 835], 5.00th=[ 835], 10.00th=[ 835], 20.00th=[ 835], | 30.00th=[ 835], 40.00th=[ 1854], 50.00th=[ 1854], 60.00th=[ 1854], | 70.00th=[ 2005], 80.00th=[ 2005], 90.00th=[ 2005], 95.00th=[ 2005], | 99.00th=[ 2005], 99.50th=[ 2005], 99.90th=[ 2005], 99.95th=[ 2005], | 99.99th=[ 2005] bw ( KiB/s): min= 7968, max= 8175, per=100.00%, avg=8071.50, stdev=146.37, 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=0.00%, sys=4.11%, ctx=67, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144750: Fri Sep 11 06:27:33 2026 write: IOPS=1, BW=4325KiB/s (4429kB/s)(12.0MiB/2841msec); 0 zone resets clat (msec): min=427, max=1738, avg=902.31, stdev=726.70 lat (msec): min=427, max=1739, avg=902.80, stdev=726.67 clat percentiles (msec): | 1.00th=[ 426], 5.00th=[ 426], 10.00th=[ 426], 20.00th=[ 426], | 30.00th=[ 426], 40.00th=[ 542], 50.00th=[ 542], 60.00th=[ 542], | 70.00th=[ 1737], 80.00th=[ 1737], 90.00th=[ 1737], 95.00th=[ 1737], | 99.00th=[ 1737], 99.50th=[ 1737], 99.90th=[ 1737], 99.95th=[ 1737], | 99.99th=[ 1737] bw ( KiB/s): min= 7937, max= 8094, per=100.00%, avg=8015.50, stdev=111.02, 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=0.07%, sys=3.87%, ctx=64, 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=4398KiB/s (4504kB/s), 1100KiB/s-3859KiB/s (1126kB/s-3952kB/s), io=16.0MiB (16.8MB), run=3184-3725msec WRITE: bw=6769KiB/s (6931kB/s), 2199KiB/s-4325KiB/s (2252kB/s-4429kB/s), io=32.0MiB (33.6MB), run=2841-4841msec