== sanity test 398b: DIO and buffer IO race ============== 06:35:11 (1789382111) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 6.43112 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=145118: Mon Sep 14 06:37:34 2026 read: IOPS=12, BW=48.8KiB/s (49.9kB/s)(5992KiB/122847msec) clat (usec): min=32, max=1006.4k, avg=39914.49, stdev=39132.12 lat (usec): min=32, max=1006.4k, avg=39916.69, stdev=39131.70 clat percentiles (usec): | 1.00th=[ 46], 5.00th=[ 56], 10.00th=[ 9372], | 20.00th=[ 18482], 30.00th=[ 22676], 40.00th=[ 27657], | 50.00th=[ 32637], 60.00th=[ 39060], 70.00th=[ 47449], | 80.00th=[ 57410], 90.00th=[ 76022], 95.00th=[ 94897], | 99.00th=[ 143655], 99.50th=[ 181404], 99.90th=[ 299893], | 99.95th=[1002439], 99.99th=[1002439] bw ( KiB/s): min= 7, max= 112, per=25.21%, avg=48.92, stdev=21.44, samples=238 iops : min= 1, max= 28, avg=11.59, stdev= 5.37, samples=238 write: IOPS=12, BW=51.2KiB/s (52.5kB/s)(6296KiB/122847msec); 0 zone resets clat (usec): min=916, max=351028, avg=39761.98, stdev=39816.57 lat (usec): min=917, max=351029, avg=39764.95, stdev=39815.80 clat percentiles (usec): | 1.00th=[ 1029], 5.00th=[ 1156], 10.00th=[ 1516], 20.00th=[ 3818], | 30.00th=[ 8717], 40.00th=[ 18744], 50.00th=[ 30278], 60.00th=[ 40633], | 70.00th=[ 53740], 80.00th=[ 69731], 90.00th=[ 92799], 95.00th=[115868], | 99.00th=[170918], 99.50th=[183501], 99.90th=[252707], 99.95th=[350225], | 99.99th=[350225] bw ( KiB/s): min= 7, max= 103, per=25.12%, avg=51.00, stdev=20.17, samples=240 iops : min= 1, max= 25, avg=12.11, stdev= 5.09, samples=240 lat (usec) : 50=0.94%, 100=3.35%, 250=0.23%, 500=0.03%, 1000=0.33% lat (msec) : 2=6.28%, 4=3.97%, 10=5.96%, 20=11.43%, 50=37.24% lat (msec) : 100=24.22%, 250=5.86%, 500=0.13%, 2000=0.03% cpu : usr=0.07%, sys=4.83%, ctx=6552, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145119: Mon Sep 14 06:37:34 2026 read: IOPS=12, BW=48.7KiB/s (49.8kB/s)(5940KiB/122048msec) clat (usec): min=28, max=526606, avg=40586.60, stdev=36169.33 lat (usec): min=28, max=526607, avg=40587.88, stdev=36169.26 clat percentiles (usec): | 1.00th=[ 45], 5.00th=[ 57], 10.00th=[ 1106], 20.00th=[ 17957], | 30.00th=[ 23200], 40.00th=[ 27657], 50.00th=[ 32900], 60.00th=[ 39584], | 70.00th=[ 48497], 80.00th=[ 59507], 90.00th=[ 78119], 95.00th=[ 96994], | 99.00th=[147850], 99.50th=[212861], 99.90th=[417334], 99.95th=[526386], | 99.99th=[526386] bw ( KiB/s): min= 7, max= 119, per=25.05%, avg=48.59, stdev=20.34, samples=239 iops : min= 1, max= 29, avg=11.50, stdev= 5.10, samples=239 write: IOPS=13, BW=52.0KiB/s (53.3kB/s)(6348KiB/122048msec); 0 zone resets clat (usec): min=860, max=871949, avg=38637.49, stdev=43644.86 lat (usec): min=862, max=871950, avg=38644.69, stdev=43641.00 clat percentiles (usec): | 1.00th=[ 1045], 5.00th=[ 1172], 10.00th=[ 1549], 20.00th=[ 3884], | 30.00th=[ 7832], 40.00th=[ 17957], 50.00th=[ 28443], 60.00th=[ 39060], | 70.00th=[ 51119], 80.00th=[ 65799], 90.00th=[ 91751], 95.00th=[112722], | 99.00th=[160433], 99.50th=[189793], 99.90th=[295699], 99.95th=[868221], | 99.99th=[868221] bw ( KiB/s): min= 7, max= 126, per=25.40%, avg=51.57, stdev=22.76, samples=240 iops : min= 1, max= 31, avg=12.25, stdev= 5.70, samples=240 lat (usec) : 50=0.88%, 100=3.52%, 250=0.23%, 500=0.10%, 750=0.07% lat (usec) : 1000=0.10% lat (msec) : 2=6.80%, 4=3.87%, 10=6.80%, 20=10.35%, 50=37.27% lat (msec) : 100=23.86%, 250=5.89%, 500=0.20%, 750=0.03%, 1000=0.03% cpu : usr=0.06%, sys=4.97%, ctx=6436, 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=145120: Mon Sep 14 06:37:34 2026 read: IOPS=12, BW=48.7KiB/s (49.9kB/s)(6028KiB/123769msec) clat (usec): min=33, max=911848, avg=39818.56, stdev=38687.64 lat (usec): min=34, max=911848, avg=39823.02, stdev=38685.57 clat percentiles (usec): | 1.00th=[ 48], 5.00th=[ 58], 10.00th=[ 8029], 20.00th=[ 18482], | 30.00th=[ 23200], 40.00th=[ 28181], 50.00th=[ 32900], 60.00th=[ 39584], | 70.00th=[ 47449], 80.00th=[ 57934], 90.00th=[ 72877], 95.00th=[ 88605], | 99.00th=[145753], 99.50th=[177210], 99.90th=[429917], 99.95th=[910164], | 99.99th=[910164] bw ( KiB/s): min= 7, max= 125, per=25.11%, avg=48.71, stdev=21.44, samples=241 iops : min= 1, max= 31, avg=11.54, stdev= 5.41, samples=241 write: IOPS=12, BW=50.6KiB/s (51.8kB/s)(6260KiB/123769msec); 0 zone resets clat (usec): min=956, max=564583, avg=40444.83, stdev=43095.71 lat (usec): min=957, max=564585, avg=40447.11, stdev=43095.67 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1172], 10.00th=[ 1582], 20.00th=[ 3916], | 30.00th=[ 8455], 40.00th=[ 19268], 50.00th=[ 30278], 60.00th=[ 41157], | 70.00th=[ 53740], 80.00th=[ 70779], 90.00th=[ 93848], 95.00th=[115868], | 99.00th=[168821], 99.50th=[189793], 99.90th=[367002], 99.95th=[566232], | 99.99th=[566232] bw ( KiB/s): min= 7, max= 119, per=24.75%, avg=50.24, stdev=21.91, samples=242 iops : min= 1, max= 29, avg=11.93, stdev= 5.49, samples=242 lat (usec) : 50=1.14%, 100=2.96%, 250=0.29%, 500=0.16%, 750=0.03% lat (usec) : 1000=0.07% lat (msec) : 2=6.48%, 4=4.00%, 10=6.22%, 20=11.07%, 50=37.08% lat (msec) : 100=24.77%, 250=5.44%, 500=0.23%, 750=0.03%, 1000=0.03% cpu : usr=0.07%, sys=4.79%, ctx=6502, 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=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=145121: Mon Sep 14 06:37:34 2026 read: IOPS=12, BW=49.3KiB/s (50.4kB/s)(6052KiB/122847msec) clat (usec): min=30, max=891353, avg=39495.70, stdev=39506.33 lat (usec): min=30, max=891354, avg=39499.14, stdev=39507.22 clat percentiles (usec): | 1.00th=[ 47], 5.00th=[ 55], 10.00th=[ 873], 20.00th=[ 17433], | 30.00th=[ 22938], 40.00th=[ 27919], 50.00th=[ 32900], 60.00th=[ 39060], | 70.00th=[ 47973], 80.00th=[ 57410], 90.00th=[ 72877], 95.00th=[ 91751], | 99.00th=[141558], 99.50th=[160433], 99.90th=[505414], 99.95th=[893387], | 99.99th=[893387] bw ( KiB/s): min= 7, max= 119, per=25.24%, avg=48.96, stdev=22.43, samples=240 iops : min= 1, max= 29, avg=11.60, stdev= 5.65, samples=240 write: IOPS=12, BW=50.8KiB/s (51.0kB/s)(6236KiB/122847msec); 0 zone resets clat (usec): min=970, max=394219, avg=40198.45, stdev=41948.36 lat (usec): min=971, max=394221, avg=40201.35, stdev=41947.26 clat percentiles (usec): | 1.00th=[ 1045], 5.00th=[ 1156], 10.00th=[ 1418], 20.00th=[ 3785], | 30.00th=[ 7701], 40.00th=[ 18220], 50.00th=[ 29492], 60.00th=[ 40109], | 70.00th=[ 54264], 80.00th=[ 69731], 90.00th=[ 93848], 95.00th=[120062], | 99.00th=[179307], 99.50th=[200279], 99.90th=[295699], 99.95th=[392168], | 99.99th=[392168] bw ( KiB/s): min= 7, max= 111, per=24.88%, avg=50.51, stdev=20.94, samples=240 iops : min= 1, max= 27, avg=11.99, stdev= 5.27, samples=240 lat (usec) : 50=0.98%, 100=3.48%, 250=0.29%, 500=0.13%, 750=0.03% lat (usec) : 1000=0.23% lat (msec) : 2=6.87%, 4=3.74%, 10=6.90%, 20=10.35%, 50=36.85% lat (msec) : 100=24.15%, 250=5.73%, 500=0.20%, 750=0.03%, 1000=0.03% cpu : usr=0.06%, sys=4.63%, ctx=6448, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=194KiB/s (199kB/s), 48.7KiB/s-49.3KiB/s (49.8kB/s-50.4kB/s), io=23.4MiB (24.6MB), run=122048-123769msec WRITE: bw=203KiB/s (208kB/s), 50.6KiB/s-52.0KiB/s (51.8kB/s-53.3kB/s), io=24.6MiB (25.7MB), run=122048-123769msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145114: Mon Sep 14 06:39:49 2026 read: IOPS=5, BW=23.2KiB/s (23.7kB/s)(5992KiB/258714msec) clat (msec): min=6, max=1020, avg=32.91, stdev=40.76 lat (msec): min=6, max=1020, avg=32.92, stdev=40.76 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 18], 50.00th=[ 22], 60.00th=[ 26], | 70.00th=[ 32], 80.00th=[ 44], 90.00th=[ 72], 95.00th=[ 95], | 99.00th=[ 157], 99.50th=[ 203], 99.90th=[ 347], 99.95th=[ 1020], | 99.99th=[ 1020] bw ( KiB/s): min= 7, max= 95, per=27.59%, avg=25.39, stdev=16.76, samples=456 iops : min= 1, max= 23, avg= 5.72, stdev= 4.22, samples=456 write: IOPS=6, BW=24.3KiB/s (24.9kB/s)(6296KiB/258714msec); 0 zone resets clat (msec): min=37, max=660, avg=132.76, stdev=60.99 lat (msec): min=37, max=660, avg=132.77, stdev=60.99 clat percentiles (msec): | 1.00th=[ 52], 5.00th=[ 65], 10.00th=[ 74], 20.00th=[ 87], | 30.00th=[ 96], 40.00th=[ 107], 50.00th=[ 118], 60.00th=[ 132], | 70.00th=[ 150], 80.00th=[ 174], 90.00th=[ 211], 95.00th=[ 251], | 99.00th=[ 338], 99.50th=[ 363], 99.90th=[ 609], 99.95th=[ 659], | 99.99th=[ 659] bw ( KiB/s): min= 7, max= 55, per=24.80%, avg=24.06, stdev=10.24, samples=504 iops : min= 1, max= 13, avg= 5.39, stdev= 2.62, samples=504 lat (msec) : 10=4.23%, 20=18.62%, 50=17.84%, 100=23.54%, 250=33.04% lat (msec) : 500=2.64%, 750=0.07%, 2000=0.03% cpu : usr=0.03%, sys=1.07%, ctx=5018, 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=145115: Mon Sep 14 06:39:49 2026 read: IOPS=5, BW=22.0KiB/s (23.5kB/s)(5940KiB/258445msec) clat (msec): min=4, max=888, avg=33.68, stdev=42.01 lat (msec): min=4, max=888, avg=33.68, stdev=42.01 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 18], 50.00th=[ 21], 60.00th=[ 26], | 70.00th=[ 32], 80.00th=[ 45], 90.00th=[ 77], 95.00th=[ 104], | 99.00th=[ 180], 99.50th=[ 209], 99.90th=[ 414], 99.95th=[ 885], | 99.99th=[ 885] bw ( KiB/s): min= 7, max= 94, per=27.81%, avg=25.59, stdev=17.05, samples=449 iops : min= 1, max= 23, avg= 5.77, stdev= 4.30, samples=449 write: IOPS=6, BW=24.6KiB/s (25.2kB/s)(6348KiB/258445msec); 0 zone resets clat (msec): min=40, max=678, avg=131.07, stdev=61.18 lat (msec): min=40, max=678, avg=131.07, stdev=61.18 clat percentiles (msec): | 1.00th=[ 54], 5.00th=[ 65], 10.00th=[ 73], 20.00th=[ 86], | 30.00th=[ 95], 40.00th=[ 105], 50.00th=[ 116], 60.00th=[ 129], | 70.00th=[ 146], 80.00th=[ 171], 90.00th=[ 207], 95.00th=[ 247], | 99.00th=[ 351], 99.50th=[ 393], 99.90th=[ 592], 99.95th=[ 676], | 99.99th=[ 676] bw ( KiB/s): min= 7, max= 48, per=25.07%, avg=24.31, stdev=10.42, samples=504 iops : min= 1, max= 12, avg= 5.45, stdev= 2.68, samples=504 lat (msec) : 10=4.39%, 20=18.55%, 50=17.19%, 100=23.80%, 250=33.50% lat (msec) : 500=2.47%, 750=0.07%, 1000=0.03% cpu : usr=0.04%, sys=1.10%, ctx=5121, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145116: Mon Sep 14 06:39:49 2026 read: IOPS=5, BW=23.3KiB/s (23.8kB/s)(6028KiB/258972msec) clat (msec): min=4, max=400, avg=34.33, stdev=35.48 lat (msec): min=4, max=400, avg=34.34, stdev=35.48 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 19], 50.00th=[ 22], 60.00th=[ 26], | 70.00th=[ 33], 80.00th=[ 48], 90.00th=[ 78], 95.00th=[ 105], | 99.00th=[ 163], 99.50th=[ 228], 99.90th=[ 359], 99.95th=[ 401], | 99.99th=[ 401] bw ( KiB/s): min= 7, max= 104, per=27.15%, avg=24.98, stdev=16.96, samples=466 iops : min= 1, max= 26, avg= 5.62, stdev= 4.30, samples=466 write: IOPS=6, BW=24.2KiB/s (24.8kB/s)(6260KiB/258972msec); 0 zone resets clat (msec): min=30, max=999, avg=132.13, stdev=65.91 lat (msec): min=30, max=999, avg=132.13, stdev=65.91 clat percentiles (msec): | 1.00th=[ 49], 5.00th=[ 64], 10.00th=[ 73], 20.00th=[ 86], | 30.00th=[ 95], 40.00th=[ 107], 50.00th=[ 117], 60.00th=[ 129], | 70.00th=[ 146], 80.00th=[ 171], 90.00th=[ 209], 95.00th=[ 245], | 99.00th=[ 342], 99.50th=[ 414], 99.90th=[ 684], 99.95th=[ 1003], | 99.99th=[ 1003] bw ( KiB/s): min= 7, max= 55, per=24.76%, avg=24.02, stdev=10.38, samples=502 iops : min= 1, max= 13, avg= 5.38, stdev= 2.67, samples=502 lat (msec) : 10=3.74%, 20=18.55%, 50=17.90%, 100=23.73%, 250=33.66% lat (msec) : 500=2.25%, 750=0.13%, 1000=0.03% cpu : usr=0.04%, sys=1.06%, ctx=5084, 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=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=145117: Mon Sep 14 06:39:49 2026 read: IOPS=5, BW=23.5KiB/s (24.1kB/s)(6052KiB/257225msec) clat (msec): min=5, max=535, avg=33.27, stdev=37.99 lat (msec): min=5, max=535, avg=33.28, stdev=37.99 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 18], 50.00th=[ 21], 60.00th=[ 25], | 70.00th=[ 32], 80.00th=[ 45], 90.00th=[ 74], 95.00th=[ 101], | 99.00th=[ 171], 99.50th=[ 262], 99.90th=[ 451], 99.95th=[ 535], | 99.99th=[ 535] bw ( KiB/s): min= 7, max= 104, per=28.33%, avg=26.07, stdev=17.94, samples=449 iops : min= 1, max= 26, avg= 5.90, stdev= 4.55, samples=449 write: IOPS=6, BW=24.2KiB/s (24.8kB/s)(6236KiB/257225msec); 0 zone resets clat (msec): min=34, max=981, avg=132.40, stdev=64.04 lat (msec): min=34, max=981, avg=132.41, stdev=64.04 clat percentiles (msec): | 1.00th=[ 54], 5.00th=[ 66], 10.00th=[ 73], 20.00th=[ 85], | 30.00th=[ 95], 40.00th=[ 106], 50.00th=[ 117], 60.00th=[ 132], | 70.00th=[ 148], 80.00th=[ 171], 90.00th=[ 211], 95.00th=[ 251], | 99.00th=[ 326], 99.50th=[ 380], 99.90th=[ 684], 99.95th=[ 978], | 99.99th=[ 978] bw ( KiB/s): min= 7, max= 56, per=24.58%, avg=23.84, stdev=10.27, samples=504 iops : min= 1, max= 14, avg= 5.33, stdev= 2.63, samples=504 lat (msec) : 10=4.36%, 20=19.50%, 50=16.96%, 100=23.86%, 250=32.42% lat (msec) : 500=2.77%, 750=0.10%, 1000=0.03% cpu : usr=0.04%, sys=1.08%, ctx=5044, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=92.7KiB/s (94.9kB/s), 22.0KiB/s-23.5KiB/s (23.5kB/s-24.1kB/s), io=23.4MiB (24.6MB), run=257225-258972msec WRITE: bw=97.1KiB/s (99.4kB/s), 24.2KiB/s-24.6KiB/s (24.8kB/s-25.2kB/s), io=24.6MiB (25.7MB), run=257225-258972msec 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=145177: Mon Sep 14 06:40:30 2026 read: IOPS=14, BW=226KiB/s (231kB/s)(5920KiB/26201msec) clat (usec): min=30, max=141600, avg=38701.77, stdev=29208.45 lat (usec): min=31, max=141601, avg=38703.10, stdev=29208.37 clat percentiles (usec): | 1.00th=[ 38], 5.00th=[ 57], 10.00th=[ 62], 20.00th=[ 2147], | 30.00th=[ 25560], 40.00th=[ 31589], 50.00th=[ 35914], 60.00th=[ 41681], | 70.00th=[ 49021], 80.00th=[ 60556], 90.00th=[ 76022], 95.00th=[ 93848], | 99.00th=[123208], 99.50th=[131597], 99.90th=[141558], 99.95th=[141558], | 99.99th=[141558] bw ( KiB/s): min= 63, max= 407, per=26.54%, avg=224.51, stdev=82.97, samples=51 iops : min= 3, max= 25, avg=13.31, stdev= 5.29, samples=51 write: IOPS=15, BW=243KiB/s (249kB/s)(6368KiB/26201msec); 0 zone resets clat (usec): min=1385, max=318495, avg=29567.40, stdev=36603.22 lat (usec): min=1387, max=318497, avg=29572.43, stdev=36601.37 clat percentiles (usec): | 1.00th=[ 1500], 5.00th=[ 1876], 10.00th=[ 2769], 20.00th=[ 4817], | 30.00th=[ 7046], 40.00th=[ 9634], 50.00th=[ 14353], 60.00th=[ 22676], | 70.00th=[ 34866], 80.00th=[ 51643], 90.00th=[ 78119], 95.00th=[ 96994], | 99.00th=[158335], 99.50th=[287310], 99.90th=[316670], 99.95th=[316670], | 99.99th=[316670] bw ( KiB/s): min= 32, max= 478, per=27.36%, avg=243.49, stdev=97.03, samples=51 iops : min= 2, max= 29, avg=14.49, stdev= 6.05, samples=51 lat (usec) : 50=1.56%, 100=5.73%, 250=1.56%, 500=0.39%, 750=0.13% lat (msec) : 2=3.12%, 4=5.73%, 10=12.89%, 20=10.03%, 50=34.64% lat (msec) : 100=20.44%, 250=3.52%, 500=0.26% cpu : usr=0.10%, sys=5.74%, ctx=1437, 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=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=145179: Mon Sep 14 06:40:30 2026 read: IOPS=12, BW=204KiB/s (208kB/s)(5744KiB/28211msec) clat (usec): min=37, max=143849, avg=40030.82, stdev=30633.08 lat (usec): min=38, max=143850, avg=40032.15, stdev=30632.96 clat percentiles (usec): | 1.00th=[ 43], 5.00th=[ 57], 10.00th=[ 62], 20.00th=[ 519], | 30.00th=[ 23725], 40.00th=[ 31589], 50.00th=[ 36963], 60.00th=[ 43779], | 70.00th=[ 54264], 80.00th=[ 68682], 90.00th=[ 81265], 95.00th=[ 94897], | 99.00th=[126354], 99.50th=[132645], 99.90th=[143655], 99.95th=[143655], | 99.99th=[143655] bw ( KiB/s): min= 45, max= 381, per=23.95%, avg=202.65, stdev=68.53, samples=55 iops : min= 2, max= 23, avg=11.91, stdev= 4.30, samples=55 write: IOPS=14, BW=232KiB/s (238kB/s)(6544KiB/28211msec); 0 zone resets clat (usec): min=1393, max=337865, avg=33222.52, stdev=37887.73 lat (usec): min=1394, max=337867, avg=33229.02, stdev=37887.10 clat percentiles (usec): | 1.00th=[ 1467], 5.00th=[ 1696], 10.00th=[ 2114], 20.00th=[ 5669], | 30.00th=[ 7767], 40.00th=[ 11863], 50.00th=[ 20317], 60.00th=[ 28967], | 70.00th=[ 40633], 80.00th=[ 57934], 90.00th=[ 82314], 95.00th=[ 98042], | 99.00th=[160433], 99.50th=[166724], 99.90th=[337642], 99.95th=[337642], | 99.99th=[337642] bw ( KiB/s): min= 63, max= 443, per=25.83%, avg=229.85, stdev=91.59, samples=55 iops : min= 3, max= 27, avg=13.64, stdev= 5.80, samples=55 lat (usec) : 50=0.78%, 100=7.81%, 250=0.39%, 500=0.26%, 750=0.39% lat (msec) : 2=4.95%, 4=4.43%, 10=10.81%, 20=8.59%, 50=33.07% lat (msec) : 100=24.74%, 250=3.65%, 500=0.13% cpu : usr=0.06%, sys=5.59%, ctx=1511, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145182: Mon Sep 14 06:40:30 2026 read: IOPS=13, BW=221KiB/s (226kB/s)(6256KiB/28308msec) clat (usec): min=33, max=174990, avg=37992.87, stdev=31593.52 lat (usec): min=33, max=174992, avg=38012.07, stdev=31582.54 clat percentiles (usec): | 1.00th=[ 40], 5.00th=[ 56], 10.00th=[ 61], 20.00th=[ 100], | 30.00th=[ 21103], 40.00th=[ 30540], 50.00th=[ 36963], 60.00th=[ 43779], | 70.00th=[ 50070], 80.00th=[ 60031], 90.00th=[ 77071], 95.00th=[ 92799], | 99.00th=[149947], 99.50th=[154141], 99.90th=[175113], 99.95th=[175113], | 99.99th=[175113] bw ( KiB/s): min= 64, max= 512, per=26.96%, avg=228.11, stdev=97.28, samples=54 iops : min= 4, max= 32, avg=13.50, stdev= 6.13, samples=54 write: IOPS=13, BW=213KiB/s (218kB/s)(6032KiB/28308msec); 0 zone resets clat (usec): min=1446, max=205651, avg=34680.48, stdev=37818.50 lat (usec): min=1449, max=205653, avg=34683.32, stdev=37817.89 clat percentiles (usec): | 1.00th=[ 1500], 5.00th=[ 1729], 10.00th=[ 2507], 20.00th=[ 5342], | 30.00th=[ 7046], 40.00th=[ 11207], 50.00th=[ 21627], 60.00th=[ 33424], | 70.00th=[ 43254], 80.00th=[ 60031], 90.00th=[ 84411], 95.00th=[113771], | 99.00th=[170918], 99.50th=[191890], 99.90th=[206570], 99.95th=[206570], | 99.99th=[206570] bw ( KiB/s): min= 31, max= 446, per=23.80%, avg=211.80, stdev=87.18, samples=55 iops : min= 1, max= 27, avg=12.49, stdev= 5.48, samples=55 lat (usec) : 50=1.17%, 100=9.11%, 250=1.30%, 500=0.52%, 1000=0.13% lat (msec) : 2=4.04%, 4=4.04%, 10=10.55%, 20=8.20%, 50=33.20% lat (msec) : 100=22.66%, 250=5.08% cpu : usr=0.06%, sys=4.94%, ctx=1484, 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=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=145183: Mon Sep 14 06:40:30 2026 read: IOPS=13, BW=217KiB/s (222kB/s)(6032KiB/27838msec) clat (usec): min=33, max=179559, avg=39363.51, stdev=33493.19 lat (usec): min=34, max=179560, avg=39364.78, stdev=33493.19 clat percentiles (usec): | 1.00th=[ 39], 5.00th=[ 54], 10.00th=[ 60], 20.00th=[ 167], | 30.00th=[ 21890], 40.00th=[ 28705], 50.00th=[ 34341], 60.00th=[ 41681], | 70.00th=[ 51643], 80.00th=[ 62129], 90.00th=[ 82314], 95.00th=[102237], | 99.00th=[154141], 99.50th=[177210], 99.90th=[179307], 99.95th=[179307], | 99.99th=[179307] bw ( KiB/s): min= 30, max= 480, per=25.37%, avg=214.61, stdev=90.60, samples=54 iops : min= 1, max= 30, avg=12.67, stdev= 5.75, samples=54 write: IOPS=14, BW=225KiB/s (230kB/s)(6256KiB/27838msec); 0 zone resets clat (usec): min=1312, max=210831, avg=32721.09, stdev=34788.39 lat (usec): min=1315, max=210833, avg=32728.60, stdev=34797.66 clat percentiles (usec): | 1.00th=[ 1434], 5.00th=[ 1663], 10.00th=[ 2507], 20.00th=[ 5473], | 30.00th=[ 7898], 40.00th=[ 11076], 50.00th=[ 21103], 60.00th=[ 31589], | 70.00th=[ 42730], 80.00th=[ 56361], 90.00th=[ 82314], 95.00th=[105382], | 99.00th=[154141], 99.50th=[208667], 99.90th=[210764], 99.95th=[210764], | 99.99th=[210764] bw ( KiB/s): min= 92, max= 438, per=25.06%, avg=223.04, stdev=80.86, samples=54 iops : min= 5, max= 27, avg=13.20, stdev= 5.10, samples=54 lat (usec) : 50=1.43%, 100=8.07%, 250=0.78%, 750=0.13%, 1000=0.26% lat (msec) : 2=3.78%, 4=4.82%, 10=11.20%, 20=8.07%, 50=33.85% lat (msec) : 100=21.48%, 250=6.12% cpu : usr=0.06%, sys=5.44%, ctx=1486, 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=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=846KiB/s (866kB/s), 204KiB/s-226KiB/s (208kB/s-231kB/s), io=23.4MiB (24.5MB), run=26201-28308msec WRITE: bw=890KiB/s (912kB/s), 213KiB/s-243KiB/s (218kB/s-249kB/s), io=24.6MiB (25.8MB), run=26201-28308msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145178: Mon Sep 14 06:41:09 2026 read: IOPS=5, BW=88.8KiB/s (90.9kB/s)(5920KiB/66682msec) clat (msec): min=7, max=299, avg=37.62, stdev=37.64 lat (msec): min=7, max=299, avg=37.62, stdev=37.64 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 24], 60.00th=[ 29], | 70.00th=[ 35], 80.00th=[ 47], 90.00th=[ 87], 95.00th=[ 120], | 99.00th=[ 184], 99.50th=[ 243], 99.90th=[ 300], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 23, max= 287, per=26.50%, avg=94.07, stdev=59.18, samples=122 iops : min= 1, max= 17, avg= 5.10, stdev= 3.72, samples=122 write: IOPS=5, BW=95.5KiB/s (97.8kB/s)(6368KiB/66682msec); 0 zone resets clat (msec): min=44, max=399, avg=131.29, stdev=54.47 lat (msec): min=44, max=399, avg=131.29, stdev=54.47 clat percentiles (msec): | 1.00th=[ 51], 5.00th=[ 65], 10.00th=[ 74], 20.00th=[ 88], | 30.00th=[ 97], 40.00th=[ 107], 50.00th=[ 122], 60.00th=[ 134], | 70.00th=[ 150], 80.00th=[ 174], 90.00th=[ 205], 95.00th=[ 224], | 99.00th=[ 334], 99.50th=[ 397], 99.90th=[ 401], 99.95th=[ 401], | 99.99th=[ 401] bw ( KiB/s): min= 31, max= 160, per=25.91%, avg=96.91, stdev=37.64, samples=128 iops : min= 1, max= 10, avg= 5.27, stdev= 2.45, samples=128 lat (msec) : 10=1.69%, 20=15.63%, 50=22.14%, 100=22.40%, 250=36.59% lat (msec) : 500=1.56% cpu : usr=0.03%, sys=1.23%, ctx=1282, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145180: Mon Sep 14 06:41:09 2026 read: IOPS=5, BW=85.3KiB/s (87.4kB/s)(5744KiB/67318msec) clat (msec): min=5, max=265, avg=35.73, stdev=37.18 lat (msec): min=5, max=265, avg=35.73, stdev=37.18 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 24], 60.00th=[ 29], | 70.00th=[ 35], 80.00th=[ 45], 90.00th=[ 71], 95.00th=[ 105], | 99.00th=[ 230], 99.50th=[ 264], 99.90th=[ 266], 99.95th=[ 266], | 99.99th=[ 266] bw ( KiB/s): min= 23, max= 286, per=28.05%, avg=99.58, stdev=64.86, samples=114 iops : min= 1, max= 17, avg= 5.45, stdev= 4.11, samples=114 write: IOPS=6, BW=97.2KiB/s (99.5kB/s)(6544KiB/67318msec); 0 zone resets clat (msec): min=48, max=464, avg=132.32, stdev=63.12 lat (msec): min=48, max=464, avg=132.32, stdev=63.12 clat percentiles (msec): | 1.00th=[ 57], 5.00th=[ 69], 10.00th=[ 77], 20.00th=[ 88], | 30.00th=[ 96], 40.00th=[ 107], 50.00th=[ 115], 60.00th=[ 128], | 70.00th=[ 144], 80.00th=[ 167], 90.00th=[ 207], 95.00th=[ 253], | 99.00th=[ 405], 99.50th=[ 422], 99.90th=[ 464], 99.95th=[ 464], | 99.99th=[ 464] bw ( KiB/s): min= 31, max= 192, per=26.50%, avg=99.12, stdev=39.48, samples=130 iops : min= 1, max= 12, avg= 5.42, stdev= 2.55, samples=130 lat (msec) : 10=1.95%, 20=15.89%, 50=21.09%, 100=23.57%, 250=34.38% lat (msec) : 500=3.12% cpu : usr=0.04%, sys=1.17%, ctx=1269, 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=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=145181: Mon Sep 14 06:41:09 2026 read: IOPS=5, BW=95.4KiB/s (97.7kB/s)(6256KiB/65574msec) clat (msec): min=6, max=300, avg=35.64, stdev=35.65 lat (msec): min=6, max=300, avg=35.64, stdev=35.65 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 23], 60.00th=[ 29], | 70.00th=[ 34], 80.00th=[ 47], 90.00th=[ 74], 95.00th=[ 111], | 99.00th=[ 184], 99.50th=[ 234], 99.90th=[ 300], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 30, max= 318, per=29.29%, avg=103.97, stdev=65.62, samples=119 iops : min= 1, max= 19, avg= 5.71, stdev= 4.13, samples=119 write: IOPS=5, BW=91.0KiB/s (94.2kB/s)(6032KiB/65574msec); 0 zone resets clat (msec): min=46, max=459, avg=136.58, stdev=58.86 lat (msec): min=46, max=459, avg=136.59, stdev=58.85 clat percentiles (msec): | 1.00th=[ 53], 5.00th=[ 66], 10.00th=[ 80], 20.00th=[ 91], | 30.00th=[ 103], 40.00th=[ 109], 50.00th=[ 124], 60.00th=[ 138], | 70.00th=[ 155], 80.00th=[ 178], 90.00th=[ 213], 95.00th=[ 245], | 99.00th=[ 372], 99.50th=[ 376], 99.90th=[ 460], 99.95th=[ 460], | 99.99th=[ 460] bw ( KiB/s): min= 31, max= 160, per=24.66%, avg=92.24, stdev=36.60, samples=128 iops : min= 1, max= 10, avg= 4.98, stdev= 2.38, samples=128 lat (msec) : 10=1.69%, 20=18.10%, 50=22.27%, 100=19.27%, 250=36.20% lat (msec) : 500=2.47% cpu : usr=0.04%, sys=1.18%, ctx=1333, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145184: Mon Sep 14 06:41:09 2026 read: IOPS=5, BW=90.8KiB/s (92.0kB/s)(6032KiB/66426msec) clat (msec): min=6, max=287, avg=39.62, stdev=41.45 lat (msec): min=6, max=287, avg=39.62, stdev=41.45 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 16], | 30.00th=[ 20], 40.00th=[ 23], 50.00th=[ 26], 60.00th=[ 30], | 70.00th=[ 37], 80.00th=[ 50], 90.00th=[ 86], 95.00th=[ 134], | 99.00th=[ 226], 99.50th=[ 271], 99.90th=[ 288], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 31, max= 320, per=28.77%, avg=102.14, stdev=62.50, samples=115 iops : min= 1, max= 20, avg= 5.60, stdev= 3.97, samples=115 write: IOPS=5, BW=94.2KiB/s (96.4kB/s)(6256KiB/66426msec); 0 zone resets clat (msec): min=38, max=430, avg=130.51, stdev=57.34 lat (msec): min=38, max=430, avg=130.51, stdev=57.33 clat percentiles (msec): | 1.00th=[ 51], 5.00th=[ 65], 10.00th=[ 72], 20.00th=[ 85], | 30.00th=[ 95], 40.00th=[ 110], 50.00th=[ 121], 60.00th=[ 134], | 70.00th=[ 146], 80.00th=[ 167], 90.00th=[ 197], 95.00th=[ 249], | 99.00th=[ 330], 99.50th=[ 418], 99.90th=[ 430], 99.95th=[ 430], | 99.99th=[ 430] bw ( KiB/s): min= 23, max= 191, per=25.44%, avg=95.16, stdev=39.44, samples=129 iops : min= 1, max= 11, avg= 5.16, stdev= 2.51, samples=129 lat (msec) : 10=2.21%, 20=14.45%, 50=23.31%, 100=21.88%, 250=35.55% lat (msec) : 500=2.60% cpu : usr=0.03%, sys=1.18%, ctx=1317, 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=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=356KiB/s (364kB/s), 85.3KiB/s-95.4KiB/s (87.4kB/s-97.7kB/s), io=23.4MiB (24.5MB), run=65574-67318msec WRITE: bw=374KiB/s (383kB/s), 91.0KiB/s-97.2KiB/s (94.2kB/s-99.5kB/s), io=24.6MiB (25.8MB), run=65574-67318msec 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=145202: Mon Sep 14 06:41:25 2026 read: IOPS=2, BW=2166KiB/s (2218kB/s)(7168KiB/3310msec) clat (usec): min=546, max=317474, avg=203866.01, stdev=105635.47 lat (usec): min=547, max=317476, avg=203867.44, stdev=105635.65 clat percentiles (usec): | 1.00th=[ 545], 5.00th=[ 545], 10.00th=[ 545], 20.00th=[164627], | 30.00th=[189793], 40.00th=[189793], 50.00th=[214959], 60.00th=[238027], | 70.00th=[238027], 80.00th=[299893], 90.00th=[316670], 95.00th=[316670], | 99.00th=[316670], 99.50th=[316670], 99.90th=[316670], 99.95th=[316670], | 99.99th=[316670] bw ( KiB/s): min= 1896, max= 4071, per=69.98%, avg=2717.50, stdev=997.01, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 write: IOPS=1, BW=1547KiB/s (1584kB/s)(5120KiB/3310msec); 0 zone resets clat (msec): min=176, max=476, avg=335.67, stdev=131.47 lat (msec): min=176, max=477, avg=335.76, stdev=131.46 clat percentiles (msec): | 1.00th=[ 178], 5.00th=[ 178], 10.00th=[ 178], 20.00th=[ 178], | 30.00th=[ 275], 40.00th=[ 275], 50.00th=[ 284], 60.00th=[ 284], | 70.00th=[ 468], 80.00th=[ 468], 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= 1896, max= 4055, per=48.86%, avg=2656.67, stdev=1212.55, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (usec) : 750=8.33% lat (msec) : 250=41.67%, 500=50.00% cpu : usr=0.03%, sys=16.77%, ctx=202, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145203: Mon Sep 14 06:41:25 2026 read: IOPS=0, BW=406KiB/s (415kB/s)(2048KiB/5049msec) clat (msec): min=292, max=312, avg=302.47, stdev=14.08 lat (msec): min=292, max=312, avg=302.47, stdev=14.08 clat percentiles (msec): | 1.00th=[ 292], 5.00th=[ 292], 10.00th=[ 292], 20.00th=[ 292], | 30.00th=[ 292], 40.00th=[ 292], 50.00th=[ 292], 60.00th=[ 313], | 70.00th=[ 313], 80.00th=[ 313], 90.00th=[ 313], 95.00th=[ 313], | 99.00th=[ 313], 99.50th=[ 313], 99.90th=[ 313], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 1587, max= 2043, per=46.74%, avg=1815.00, stdev=322.44, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=2028KiB/s (2077kB/s)(10.0MiB/5049msec); 0 zone resets clat (msec): min=155, max=1350, avg=432.94, stdev=363.79 lat (msec): min=155, max=1350, avg=433.06, stdev=363.77 clat percentiles (msec): | 1.00th=[ 157], 5.00th=[ 157], 10.00th=[ 157], 20.00th=[ 190], | 30.00th=[ 197], 40.00th=[ 220], 50.00th=[ 262], 60.00th=[ 279], | 70.00th=[ 477], 80.00th=[ 567], 90.00th=[ 634], 95.00th=[ 1351], | 99.00th=[ 1351], 99.50th=[ 1351], 99.90th=[ 1351], 99.95th=[ 1351], | 99.99th=[ 1351] bw ( KiB/s): min= 2043, max= 4071, per=65.66%, avg=3570.00, stdev=859.54, samples=5 iops : min= 1, max= 3, avg= 2.60, stdev= 0.89, samples=5 lat (msec) : 250=33.33%, 500=41.67%, 750=16.67%, 2000=8.33% cpu : usr=0.00%, sys=12.56%, ctx=129, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145204: Mon Sep 14 06:41:25 2026 read: IOPS=1, BW=1165KiB/s (1193kB/s)(6144KiB/5273msec) clat (usec): min=526, max=309929, avg=199593.89, stdev=105945.31 lat (usec): min=527, max=309929, avg=199594.80, stdev=105945.15 clat percentiles (usec): | 1.00th=[ 529], 5.00th=[ 529], 10.00th=[ 529], 20.00th=[187696], | 30.00th=[187696], 40.00th=[221250], 50.00th=[221250], 60.00th=[223347], | 70.00th=[254804], 80.00th=[254804], 90.00th=[308282], 95.00th=[308282], | 99.00th=[308282], 99.50th=[308282], 99.90th=[308282], 99.95th=[308282], | 99.99th=[308282] bw ( KiB/s): min= 1961, max= 2043, per=51.52%, avg=2000.60, stdev=33.53, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 write: IOPS=1, BW=1165KiB/s (1193kB/s)(6144KiB/5273msec); 0 zone resets clat (msec): min=335, max=1489, avg=640.74, stdev=438.98 lat (msec): min=335, max=1489, avg=640.83, stdev=438.98 clat percentiles (msec): | 1.00th=[ 334], 5.00th=[ 334], 10.00th=[ 334], 20.00th=[ 359], | 30.00th=[ 359], 40.00th=[ 443], 50.00th=[ 443], 60.00th=[ 493], | 70.00th=[ 726], 80.00th=[ 726], 90.00th=[ 1485], 95.00th=[ 1485], | 99.00th=[ 1485], 99.50th=[ 1485], 99.90th=[ 1485], 99.95th=[ 1485], | 99.99th=[ 1485] bw ( KiB/s): min= 1446, max= 2027, per=34.26%, avg=1862.80, stdev=237.76, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (usec) : 750=8.33% lat (msec) : 250=25.00%, 500=50.00%, 750=8.33%, 2000=8.33% cpu : usr=0.02%, sys=10.70%, ctx=239, 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=145205: Mon Sep 14 06:41:25 2026 read: IOPS=1, BW=1473KiB/s (1509kB/s)(5120KiB/3475msec) clat (usec): min=820, max=305530, avg=206975.40, stdev=119759.72 lat (usec): min=821, max=305532, avg=206976.68, stdev=119759.79 clat percentiles (usec): | 1.00th=[ 824], 5.00th=[ 824], 10.00th=[ 824], 20.00th=[ 824], | 30.00th=[225444], 40.00th=[225444], 50.00th=[231736], 60.00th=[231736], | 70.00th=[270533], 80.00th=[270533], 90.00th=[304088], 95.00th=[304088], | 99.00th=[304088], 99.50th=[304088], 99.90th=[304088], 99.95th=[304088], | 99.99th=[304088] bw ( KiB/s): min= 2027, max= 4039, per=69.54%, avg=2700.33, stdev=1159.33, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=2, BW=2063KiB/s (2112kB/s)(7168KiB/3475msec); 0 zone resets clat (msec): min=133, max=641, avg=338.71, stdev=160.52 lat (msec): min=133, max=641, avg=338.80, stdev=160.51 clat percentiles (msec): | 1.00th=[ 134], 5.00th=[ 134], 10.00th=[ 134], 20.00th=[ 239], | 30.00th=[ 251], 40.00th=[ 251], 50.00th=[ 355], 60.00th=[ 372], | 70.00th=[ 372], 80.00th=[ 384], 90.00th=[ 642], 95.00th=[ 642], | 99.00th=[ 642], 99.50th=[ 642], 99.90th=[ 642], 99.95th=[ 642], | 99.99th=[ 642] bw ( KiB/s): min= 1473, max= 6131, per=62.40%, avg=3392.75, stdev=2151.26, samples=4 iops : min= 1, max= 5, avg= 2.50, stdev= 1.91, samples=4 lat (usec) : 1000=8.33% lat (msec) : 250=41.67%, 500=41.67%, 750=8.33% cpu : usr=0.00%, sys=16.35%, ctx=196, 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=3884KiB/s (3977kB/s), 406KiB/s-2166KiB/s (415kB/s-2218kB/s), io=20.0MiB (20.0MB), run=3310-5273msec WRITE: bw=5438KiB/s (5568kB/s), 1165KiB/s-2063KiB/s (1193kB/s-2112kB/s), io=28.0MiB (29.4MB), run=3310-5273msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145206: Mon Sep 14 06:41:25 2026 read: IOPS=1, BW=1349KiB/s (1381kB/s)(7168KiB/5314msec) clat (msec): min=172, max=760, avg=411.60, stdev=206.18 lat (msec): min=172, max=760, avg=411.61, stdev=206.18 clat percentiles (msec): | 1.00th=[ 174], 5.00th=[ 174], 10.00th=[ 174], 20.00th=[ 309], | 30.00th=[ 326], 40.00th=[ 326], 50.00th=[ 338], 60.00th=[ 347], | 70.00th=[ 347], 80.00th=[ 634], 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= 1600, max= 4071, per=78.36%, avg=2939.25, stdev=1313.62, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 write: IOPS=0, BW=963KiB/s (987kB/s)(5120KiB/5314msec); 0 zone resets clat (msec): min=314, max=756, avg=430.79, stdev=183.46 lat (msec): min=314, max=756, avg=431.34, stdev=183.24 clat percentiles (msec): | 1.00th=[ 317], 5.00th=[ 317], 10.00th=[ 317], 20.00th=[ 317], | 30.00th=[ 351], 40.00th=[ 351], 50.00th=[ 363], 60.00th=[ 363], | 70.00th=[ 372], 80.00th=[ 372], 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= 1906, max= 4023, per=47.35%, avg=2487.00, stdev=1025.19, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (msec) : 250=8.33%, 500=66.67%, 750=8.33%, 1000=16.67% cpu : usr=0.04%, sys=3.75%, ctx=122, 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=145207: Mon Sep 14 06:41:25 2026 read: IOPS=0, BW=375KiB/s (384kB/s)(2048KiB/5459msec) clat (msec): min=198, max=242, avg=220.64, stdev=30.61 lat (msec): min=198, max=242, avg=220.64, stdev=30.61 clat percentiles (msec): | 1.00th=[ 199], 5.00th=[ 199], 10.00th=[ 199], 20.00th=[ 199], | 30.00th=[ 199], 40.00th=[ 199], 50.00th=[ 199], 60.00th=[ 243], | 70.00th=[ 243], 80.00th=[ 243], 90.00th=[ 243], 95.00th=[ 243], | 99.00th=[ 243], 99.50th=[ 243], 99.90th=[ 243], 99.95th=[ 243], | 99.99th=[ 243] bw ( KiB/s): min= 1635, max= 2011, per=48.60%, avg=1823.00, stdev=265.87, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1876KiB/s (1921kB/s)(10.0MiB/5459msec); 0 zone resets clat (msec): min=259, max=1019, avg=477.91, stdev=222.33 lat (msec): min=259, max=1020, avg=478.01, stdev=222.32 clat percentiles (msec): | 1.00th=[ 259], 5.00th=[ 259], 10.00th=[ 259], 20.00th=[ 300], | 30.00th=[ 342], 40.00th=[ 363], 50.00th=[ 397], 60.00th=[ 443], | 70.00th=[ 456], 80.00th=[ 575], 90.00th=[ 625], 95.00th=[ 1020], | 99.00th=[ 1020], 99.50th=[ 1020], 99.90th=[ 1020], 99.95th=[ 1020], | 99.99th=[ 1020] bw ( KiB/s): min= 1906, max= 4039, per=42.77%, avg=2246.12, stdev=726.08, samples=8 iops : min= 1, max= 3, avg= 1.25, stdev= 0.71, samples=8 lat (msec) : 250=16.67%, 500=58.33%, 750=16.67%, 2000=8.33% cpu : usr=0.04%, sys=4.97%, ctx=98, 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=145208: Mon Sep 14 06:41:25 2026 read: IOPS=1, BW=1263KiB/s (1294kB/s)(6144KiB/4863msec) clat (msec): min=114, max=374, avg=238.22, stdev=120.29 lat (msec): min=114, max=374, avg=238.22, stdev=120.29 clat percentiles (msec): | 1.00th=[ 115], 5.00th=[ 115], 10.00th=[ 115], 20.00th=[ 136], | 30.00th=[ 136], 40.00th=[ 144], 50.00th=[ 144], 60.00th=[ 305], | 70.00th=[ 359], 80.00th=[ 359], 90.00th=[ 376], 95.00th=[ 376], | 99.00th=[ 376], 99.50th=[ 376], 99.90th=[ 376], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 2023, max= 4071, per=89.90%, avg=3372.33, stdev=1168.80, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=1, BW=1263KiB/s (1294kB/s)(6144KiB/4863msec); 0 zone resets clat (msec): min=221, max=1274, avg=559.37, stdev=388.67 lat (msec): min=221, max=1274, avg=559.50, stdev=388.66 clat percentiles (msec): | 1.00th=[ 222], 5.00th=[ 222], 10.00th=[ 222], 20.00th=[ 292], | 30.00th=[ 292], 40.00th=[ 401], 50.00th=[ 401], 60.00th=[ 464], | 70.00th=[ 709], 80.00th=[ 709], 90.00th=[ 1267], 95.00th=[ 1267], | 99.00th=[ 1267], 99.50th=[ 1267], 99.90th=[ 1267], 99.95th=[ 1267], | 99.99th=[ 1267] bw ( KiB/s): min= 1570, max= 2023, per=36.32%, avg=1907.67, stdev=172.87, samples=6 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=6 lat (msec) : 250=33.33%, 500=50.00%, 750=8.33%, 2000=8.33% cpu : usr=0.00%, sys=2.98%, ctx=67, 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=145209: Mon Sep 14 06:41:25 2026 read: IOPS=0, BW=950KiB/s (973kB/s)(5120KiB/5388msec) clat (msec): min=74, max=814, avg=309.25, stdev=294.42 lat (msec): min=74, max=814, avg=309.25, stdev=294.42 clat percentiles (msec): | 1.00th=[ 75], 5.00th=[ 75], 10.00th=[ 75], 20.00th=[ 75], | 30.00th=[ 171], 40.00th=[ 171], 50.00th=[ 180], 60.00th=[ 180], | 70.00th=[ 309], 80.00th=[ 309], 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= 4023, max= 4047, per=100.00%, avg=4035.00, stdev=16.97, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1330KiB/s (1362kB/s)(7168KiB/5388msec); 0 zone resets clat (msec): min=225, max=1438, avg=511.30, stdev=423.65 lat (msec): min=225, max=1438, avg=511.39, stdev=423.64 clat percentiles (msec): | 1.00th=[ 226], 5.00th=[ 226], 10.00th=[ 226], 20.00th=[ 247], | 30.00th=[ 326], 40.00th=[ 326], 50.00th=[ 342], 60.00th=[ 472], | 70.00th=[ 472], 80.00th=[ 531], 90.00th=[ 1435], 95.00th=[ 1435], | 99.00th=[ 1435], 99.50th=[ 1435], 99.90th=[ 1435], 99.95th=[ 1435], | 99.99th=[ 1435] bw ( KiB/s): min= 1924, max= 4071, per=57.39%, avg=3014.25, stdev=1202.50, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 lat (msec) : 100=8.33%, 250=33.33%, 500=33.33%, 750=8.33%, 1000=8.33% lat (msec) : 2000=8.33% cpu : usr=0.00%, sys=2.80%, ctx=106, 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=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=3752KiB/s (3842kB/s), 375KiB/s-1349KiB/s (384kB/s-1381kB/s), io=20.0MiB (20.0MB), run=4863-5459msec WRITE: bw=5252KiB/s (5378kB/s), 963KiB/s-1876KiB/s (987kB/s-1921kB/s), io=28.0MiB (29.4MB), run=4863-5459msec 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=145218: Mon Sep 14 06:41:41 2026 read: IOPS=1, BW=4840KiB/s (4956kB/s)(12.0MiB/2539msec) clat (msec): min=640, max=880, avg=764.45, stdev=120.12 lat (msec): min=640, max=880, avg=764.45, stdev=120.12 clat percentiles (msec): | 1.00th=[ 642], 5.00th=[ 642], 10.00th=[ 642], 20.00th=[ 642], | 30.00th=[ 642], 40.00th=[ 776], 50.00th=[ 776], 60.00th=[ 776], | 70.00th=[ 877], 80.00th=[ 877], 90.00th=[ 877], 95.00th=[ 877], | 99.00th=[ 877], 99.50th=[ 877], 99.90th=[ 877], 99.95th=[ 877], | 99.99th=[ 877] bw ( KiB/s): min= 8015, max= 8015, per=100.00%, avg=8015.00, stdev= 0.00, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 1000=66.67% cpu : usr=0.00%, sys=12.14%, ctx=275, 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=145220: Mon Sep 14 06:41:41 2026 read: IOPS=0, BW=1206KiB/s (1235kB/s)(4096KiB/3396msec) clat (nsec): min=760206k, max=760206k, avg=760205814.00, stdev= 0.00 lat (nsec): min=760208k, max=760208k, avg=760208300.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 760], 5.00th=[ 760], 10.00th=[ 760], 20.00th=[ 760], | 30.00th=[ 760], 40.00th=[ 760], 50.00th=[ 760], 60.00th=[ 760], | 70.00th=[ 760], 80.00th=[ 760], 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= 8015, max= 8015, per=100.00%, avg=8015.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2412KiB/s (2470kB/s)(8192KiB/3396msec); 0 zone resets clat (msec): min=968, max=1526, avg=1247.34, stdev=394.62 lat (msec): min=968, max=1526, avg=1247.69, stdev=394.63 clat percentiles (msec): | 1.00th=[ 969], 5.00th=[ 969], 10.00th=[ 969], 20.00th=[ 969], | 30.00th=[ 969], 40.00th=[ 969], 50.00th=[ 969], 60.00th=[ 1519], | 70.00th=[ 1519], 80.00th=[ 1519], 90.00th=[ 1519], 95.00th=[ 1519], | 99.00th=[ 1519], 99.50th=[ 1519], 99.90th=[ 1519], 99.95th=[ 1519], | 99.99th=[ 1519] bw ( KiB/s): min= 8015, max= 8015, per=83.07%, avg=8015.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 1000=66.67%, 2000=33.33% cpu : usr=0.00%, sys=4.83%, ctx=126, 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=145222: Mon Sep 14 06:41:41 2026 write: IOPS=1, BW=4201KiB/s (4302kB/s)(12.0MiB/2925msec); 0 zone resets clat (msec): min=863, max=1124, avg=964.06, stdev=140.00 lat (msec): min=864, max=1125, avg=964.70, stdev=140.50 clat percentiles (msec): | 1.00th=[ 860], 5.00th=[ 860], 10.00th=[ 860], 20.00th=[ 860], | 30.00th=[ 860], 40.00th=[ 902], 50.00th=[ 902], 60.00th=[ 902], | 70.00th=[ 1116], 80.00th=[ 1116], 90.00th=[ 1116], 95.00th=[ 1116], | 99.00th=[ 1116], 99.50th=[ 1116], 99.90th=[ 1116], 99.95th=[ 1116], | 99.99th=[ 1116] bw ( KiB/s): min= 8015, max= 8015, per=83.07%, avg=8015.00, stdev= 0.00, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=66.67%, 2000=33.33% cpu : usr=0.00%, sys=6.74%, ctx=93, 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=145223: Mon Sep 14 06:41:41 2026 write: IOPS=1, BW=4838KiB/s (4954kB/s)(12.0MiB/2540msec); 0 zone resets clat (msec): min=329, max=1407, avg=791.97, stdev=554.81 lat (msec): min=332, max=1407, avg=793.48, stdev=553.55 clat percentiles (msec): | 1.00th=[ 330], 5.00th=[ 330], 10.00th=[ 330], 20.00th=[ 330], | 30.00th=[ 330], 40.00th=[ 642], 50.00th=[ 642], 60.00th=[ 642], | 70.00th=[ 1401], 80.00th=[ 1401], 90.00th=[ 1401], 95.00th=[ 1401], | 99.00th=[ 1401], 99.50th=[ 1401], 99.90th=[ 1401], 99.95th=[ 1401], | 99.99th=[ 1401] bw ( KiB/s): min=16031, max=16031, per=100.00%, avg=16031.00, stdev= 0.00, samples=1 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.00%, sys=4.73%, ctx=50, 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=4824KiB/s (4940kB/s), 1206KiB/s-4840KiB/s (1235kB/s-4956kB/s), io=16.0MiB (16.8MB), run=2539-3396msec WRITE: bw=9649KiB/s (9881kB/s), 2412KiB/s-4838KiB/s (2470kB/s-4954kB/s), io=32.0MiB (33.6MB), run=2540-3396msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145216: Mon Sep 14 06:41:42 2026 read: IOPS=0, BW=3942KiB/s (4037kB/s)(12.0MiB/3117msec) clat (msec): min=323, max=1455, avg=1010.28, stdev=603.37 lat (msec): min=323, max=1455, avg=1010.29, stdev=603.37 clat percentiles (msec): | 1.00th=[ 326], 5.00th=[ 326], 10.00th=[ 326], 20.00th=[ 326], | 30.00th=[ 326], 40.00th=[ 1250], 50.00th=[ 1250], 60.00th=[ 1250], | 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= 8159, max= 8159, per=100.00%, avg=8159.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.00%, sys=3.18%, ctx=65, 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=145217: Mon Sep 14 06:41:42 2026 read: IOPS=0, BW=1237KiB/s (1267kB/s)(4096KiB/3310msec) clat (nsec): min=278832k, max=278832k, avg=278831928.00, stdev= 0.00 lat (nsec): min=278834k, max=278834k, avg=278834275.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 279], 5.00th=[ 279], 10.00th=[ 279], 20.00th=[ 279], | 30.00th=[ 279], 40.00th=[ 279], 50.00th=[ 279], 60.00th=[ 279], | 70.00th=[ 279], 80.00th=[ 279], 90.00th=[ 279], 95.00th=[ 279], | 99.00th=[ 279], 99.50th=[ 279], 99.90th=[ 279], 99.95th=[ 279], | 99.99th=[ 279] bw ( KiB/s): min= 6627, max= 6627, per=100.00%, avg=6627.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2475KiB/s (2534kB/s)(8192KiB/3310msec); 0 zone resets clat (msec): min=1189, max=1704, avg=1446.60, stdev=364.15 lat (msec): min=1189, max=1704, avg=1446.84, stdev=364.23 clat percentiles (msec): | 1.00th=[ 1183], 5.00th=[ 1183], 10.00th=[ 1183], 20.00th=[ 1183], | 30.00th=[ 1183], 40.00th=[ 1183], 50.00th=[ 1183], 60.00th=[ 1703], | 70.00th=[ 1703], 80.00th=[ 1703], 90.00th=[ 1703], 95.00th=[ 1703], | 99.00th=[ 1703], 99.50th=[ 1703], 99.90th=[ 1703], 99.95th=[ 1703], | 99.99th=[ 1703] bw ( KiB/s): min= 8126, max= 8126, per=100.00%, avg=8126.00, 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=3.93%, ctx=56, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=145219: Mon Sep 14 06:41:42 2026 write: IOPS=0, BW=2908KiB/s (2977kB/s)(12.0MiB/4226msec); 0 zone resets clat (msec): min=244, max=2076, avg=1345.64, stdev=970.56 lat (msec): min=244, max=2077, avg=1346.50, stdev=971.24 clat percentiles (msec): | 1.00th=[ 245], 5.00th=[ 245], 10.00th=[ 245], 20.00th=[ 245], | 30.00th=[ 245], 40.00th=[ 1720], 50.00th=[ 1720], 60.00th=[ 1720], | 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= 8175, max= 8192, per=100.00%, avg=8183.50, stdev=12.02, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 250=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.02%, sys=3.67%, ctx=68, 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=145221: Mon Sep 14 06:41:42 2026 write: IOPS=1, BW=4304KiB/s (4407kB/s)(12.0MiB/2855msec); 0 zone resets clat (msec): min=430, max=1290, avg=899.14, stdev=435.26 lat (msec): min=430, max=1291, avg=899.87, stdev=435.48 clat percentiles (msec): | 1.00th=[ 430], 5.00th=[ 430], 10.00th=[ 430], 20.00th=[ 430], | 30.00th=[ 430], 40.00th=[ 978], 50.00th=[ 978], 60.00th=[ 978], | 70.00th=[ 1284], 80.00th=[ 1284], 90.00th=[ 1284], 95.00th=[ 1284], | 99.00th=[ 1284], 99.50th=[ 1284], 99.90th=[ 1284], 99.95th=[ 1284], | 99.99th=[ 1284] bw ( KiB/s): min= 8126, max= 8159, per=100.00%, avg=8142.50, stdev=23.33, 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=4.41%, ctx=61, 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=4950KiB/s (5069kB/s), 1237KiB/s-3942KiB/s (1267kB/s-4037kB/s), io=16.0MiB (16.8MB), run=3117-3310msec WRITE: bw=7754KiB/s (7940kB/s), 2475KiB/s-4304KiB/s (2534kB/s-4407kB/s), io=32.0MiB (33.6MB), run=2855-4226msec