== sanity test 398b: DIO and buffer IO race ============== 15:29:16 (1783970956) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 5.39657 s, 9.3 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=145026: Mon Jul 13 15:31:26 2026 read: IOPS=13, BW=52.7KiB/s (53.9kB/s)(5992KiB/113793msec) clat (usec): min=32, max=596061, avg=37130.74, stdev=30606.13 lat (usec): min=33, max=596062, avg=37135.29, stdev=30605.95 clat percentiles (usec): | 1.00th=[ 45], 5.00th=[ 56], 10.00th=[ 85], 20.00th=[ 16581], | 30.00th=[ 21890], 40.00th=[ 27132], 50.00th=[ 31851], 60.00th=[ 37487], | 70.00th=[ 45876], 80.00th=[ 54789], 90.00th=[ 71828], 95.00th=[ 86508], | 99.00th=[131597], 99.50th=[154141], 99.90th=[196084], 99.95th=[599786], | 99.99th=[599786] bw ( KiB/s): min= 7, max= 118, per=24.87%, avg=52.47, stdev=20.29, samples=222 iops : min= 1, max= 29, avg=12.50, stdev= 5.12, samples=222 write: IOPS=13, BW=55.3KiB/s (56.7kB/s)(6296KiB/113793msec); 0 zone resets clat (usec): min=918, max=713262, avg=36708.50, stdev=38525.86 lat (usec): min=919, max=713263, avg=36709.96, stdev=38526.00 clat percentiles (usec): | 1.00th=[ 1172], 5.00th=[ 1303], 10.00th=[ 1565], 20.00th=[ 4817], | 30.00th=[ 10159], 40.00th=[ 20055], 50.00th=[ 28443], 60.00th=[ 37487], | 70.00th=[ 49546], 80.00th=[ 62129], 90.00th=[ 81265], 95.00th=[100140], | 99.00th=[149947], 99.50th=[166724], 99.90th=[312476], 99.95th=[717226], | 99.99th=[717226] bw ( KiB/s): min= 7, max= 127, per=24.99%, avg=54.98, stdev=20.28, samples=223 iops : min= 1, max= 31, avg=13.13, stdev= 5.11, samples=223 lat (usec) : 50=1.01%, 100=4.00%, 250=0.36%, 500=0.13%, 750=0.07% lat (usec) : 1000=0.03% lat (msec) : 2=6.02%, 4=3.65%, 10=6.02%, 20=11.59%, 50=39.62% lat (msec) : 100=23.86%, 250=3.52%, 500=0.07%, 750=0.07% cpu : usr=0.07%, sys=5.93%, ctx=6513, 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=145027: Mon Jul 13 15:31:26 2026 read: IOPS=13, BW=52.4KiB/s (53.6kB/s)(5940KiB/113442msec) clat (usec): min=27, max=485954, avg=36620.95, stdev=29175.73 lat (usec): min=28, max=485956, avg=36628.20, stdev=29171.27 clat percentiles (usec): | 1.00th=[ 46], 5.00th=[ 57], 10.00th=[ 81], 20.00th=[ 16450], | 30.00th=[ 21627], 40.00th=[ 26346], 50.00th=[ 32113], 60.00th=[ 38536], | 70.00th=[ 45876], 80.00th=[ 55837], 90.00th=[ 68682], 95.00th=[ 81265], | 99.00th=[122160], 99.50th=[145753], 99.90th=[283116], 99.95th=[484443], | 99.99th=[484443] bw ( KiB/s): min= 6, max= 118, per=24.69%, avg=52.09, stdev=22.10, samples=223 iops : min= 1, max= 29, avg=12.41, stdev= 5.57, samples=223 write: IOPS=13, BW=55.0KiB/s (57.3kB/s)(6348KiB/113442msec); 0 zone resets clat (usec): min=763, max=721995, avg=36970.08, stdev=39306.43 lat (usec): min=763, max=721997, avg=36971.61, stdev=39306.43 clat percentiles (usec): | 1.00th=[ 1139], 5.00th=[ 1319], 10.00th=[ 1762], 20.00th=[ 4621], | 30.00th=[ 9503], 40.00th=[ 18744], 50.00th=[ 28181], 60.00th=[ 38011], | 70.00th=[ 49021], 80.00th=[ 62129], 90.00th=[ 86508], 95.00th=[104334], | 99.00th=[143655], 99.50th=[181404], 99.90th=[337642], 99.95th=[725615], | 99.99th=[725615] bw ( KiB/s): min= 7, max= 126, per=25.21%, avg=55.46, stdev=21.50, samples=224 iops : min= 1, max= 31, avg=13.25, stdev= 5.43, samples=224 lat (usec) : 50=0.81%, 100=4.26%, 250=0.13%, 500=0.10%, 1000=0.20% lat (msec) : 2=5.66%, 4=3.42%, 10=7.29%, 20=12.14%, 50=38.70% lat (msec) : 100=22.95%, 250=4.20%, 500=0.10%, 750=0.03% cpu : usr=0.09%, sys=5.66%, ctx=6537, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145028: Mon Jul 13 15:31:26 2026 read: IOPS=13, BW=54.8KiB/s (56.1kB/s)(6028KiB/110034msec) clat (usec): min=32, max=766766, avg=36089.38, stdev=32143.44 lat (usec): min=33, max=766767, avg=36090.77, stdev=32143.34 clat percentiles (usec): | 1.00th=[ 48], 5.00th=[ 56], 10.00th=[ 96], 20.00th=[ 16909], | 30.00th=[ 22152], 40.00th=[ 26084], 50.00th=[ 31065], 60.00th=[ 36963], | 70.00th=[ 43779], 80.00th=[ 52167], 90.00th=[ 67634], 95.00th=[ 81265], | 99.00th=[116917], 99.50th=[141558], 99.90th=[235930], 99.95th=[767558], | 99.99th=[767558] bw ( KiB/s): min= 13, max= 120, per=26.03%, avg=54.92, stdev=20.16, samples=215 iops : min= 3, max= 30, avg=13.10, stdev= 5.09, samples=215 write: IOPS=14, BW=56.9KiB/s (58.3kB/s)(6260KiB/110034msec); 0 zone resets clat (usec): min=841, max=303401, avg=35306.12, stdev=34817.16 lat (usec): min=842, max=303402, avg=35316.92, stdev=34816.23 clat percentiles (usec): | 1.00th=[ 1139], 5.00th=[ 1352], 10.00th=[ 1811], 20.00th=[ 4424], | 30.00th=[ 9372], 40.00th=[ 19006], 50.00th=[ 26346], 60.00th=[ 35914], | 70.00th=[ 46400], 80.00th=[ 60031], 90.00th=[ 82314], 95.00th=[100140], | 99.00th=[149947], 99.50th=[160433], 99.90th=[295699], 99.95th=[304088], | 99.99th=[304088] bw ( KiB/s): min= 15, max= 119, per=25.81%, avg=56.77, stdev=20.57, samples=216 iops : min= 3, max= 29, avg=13.57, stdev= 5.20, samples=216 lat (usec) : 50=0.81%, 100=4.17%, 250=0.23%, 500=0.10%, 750=0.07% lat (usec) : 1000=0.23% lat (msec) : 2=5.79%, 4=3.71%, 10=6.54%, 20=11.36%, 50=42.15% lat (msec) : 100=21.19%, 250=3.52%, 500=0.10%, 1000=0.03% cpu : usr=0.09%, sys=5.82%, ctx=6457, 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=145029: Mon Jul 13 15:31:26 2026 read: IOPS=13, BW=54.1KiB/s (55.4kB/s)(6052KiB/111911msec) clat (usec): min=20, max=791000, avg=36447.72, stdev=32176.33 lat (usec): min=20, max=791002, avg=36456.34, stdev=32177.07 clat percentiles (usec): | 1.00th=[ 45], 5.00th=[ 56], 10.00th=[ 91], 20.00th=[ 17433], | 30.00th=[ 21627], 40.00th=[ 26084], 50.00th=[ 30802], 60.00th=[ 37487], | 70.00th=[ 44827], 80.00th=[ 53216], 90.00th=[ 68682], 95.00th=[ 84411], | 99.00th=[117965], 99.50th=[139461], 99.90th=[196084], 99.95th=[792724], | 99.99th=[792724] bw ( KiB/s): min= 7, max= 134, per=25.52%, avg=53.85, stdev=19.54, samples=220 iops : min= 1, max= 33, avg=12.84, stdev= 4.95, samples=220 write: IOPS=13, BW=55.7KiB/s (57.1kB/s)(6236KiB/111911msec); 0 zone resets clat (usec): min=1086, max=284323, avg=36127.13, stdev=34794.46 lat (usec): min=1086, max=284325, avg=36131.40, stdev=34798.85 clat percentiles (usec): | 1.00th=[ 1205], 5.00th=[ 1336], 10.00th=[ 1729], 20.00th=[ 4686], | 30.00th=[ 9241], 40.00th=[ 17957], 50.00th=[ 28705], 60.00th=[ 37487], | 70.00th=[ 47973], 80.00th=[ 62653], 90.00th=[ 84411], 95.00th=[100140], | 99.00th=[143655], 99.50th=[170918], 99.90th=[217056], 99.95th=[283116], | 99.99th=[283116] bw ( KiB/s): min= 7, max= 158, per=25.21%, avg=55.47, stdev=20.57, samples=220 iops : min= 1, max= 39, avg=13.25, stdev= 5.19, samples=220 lat (usec) : 50=1.27%, 100=3.68%, 250=0.13%, 750=0.03%, 1000=0.07% lat (msec) : 2=5.89%, 4=3.39%, 10=7.16%, 20=12.47%, 50=39.36% lat (msec) : 100=22.75%, 250=3.74%, 500=0.03%, 1000=0.03% cpu : usr=0.08%, sys=5.55%, ctx=6520, 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=211KiB/s (216kB/s), 52.4KiB/s-54.8KiB/s (53.6kB/s-56.1kB/s), io=23.4MiB (24.6MB), run=110034-113793msec WRITE: bw=221KiB/s (226kB/s), 55.3KiB/s-56.9KiB/s (56.7kB/s-58.3kB/s), io=24.6MiB (25.7MB), run=110034-113793msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145031: Mon Jul 13 15:33:39 2026 read: IOPS=6, BW=24.3KiB/s (24.9kB/s)(5992KiB/246323msec) clat (msec): min=4, max=735, avg=31.07, stdev=34.19 lat (msec): min=4, max=735, avg=31.07, stdev=34.19 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=[ 31], 80.00th=[ 40], 90.00th=[ 65], 95.00th=[ 90], | 99.00th=[ 155], 99.50th=[ 184], 99.90th=[ 249], 99.95th=[ 735], | 99.99th=[ 735] bw ( KiB/s): min= 7, max= 110, per=27.47%, avg=26.64, stdev=18.05, samples=436 iops : min= 1, max= 27, avg= 6.05, stdev= 4.54, samples=436 write: IOPS=6, BW=25.6KiB/s (26.2kB/s)(6296KiB/246323msec); 0 zone resets clat (msec): min=21, max=601, avg=126.69, stdev=57.17 lat (msec): min=21, max=601, avg=126.69, stdev=57.17 clat percentiles (msec): | 1.00th=[ 42], 5.00th=[ 58], 10.00th=[ 68], 20.00th=[ 82], | 30.00th=[ 93], 40.00th=[ 105], 50.00th=[ 117], 60.00th=[ 129], | 70.00th=[ 142], 80.00th=[ 167], 90.00th=[ 201], 95.00th=[ 230], | 99.00th=[ 326], 99.50th=[ 351], 99.90th=[ 426], 99.95th=[ 600], | 99.99th=[ 600] bw ( KiB/s): min= 7, max= 79, per=24.60%, avg=25.09, stdev=11.12, samples=485 iops : min= 1, max= 19, avg= 5.65, stdev= 2.82, samples=485 lat (msec) : 10=4.85%, 20=18.33%, 50=19.08%, 100=23.40%, 250=32.58% lat (msec) : 500=1.69%, 750=0.07% cpu : usr=0.03%, sys=1.38%, ctx=5188, 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=145032: Mon Jul 13 15:33:39 2026 read: IOPS=6, BW=24.2KiB/s (24.8kB/s)(5940KiB/245655msec) clat (msec): min=5, max=755, avg=31.81, stdev=35.74 lat (msec): min=5, max=755, avg=31.81, stdev=35.74 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 18], 50.00th=[ 21], 60.00th=[ 25], | 70.00th=[ 31], 80.00th=[ 43], 90.00th=[ 68], 95.00th=[ 92], | 99.00th=[ 159], 99.50th=[ 188], 99.90th=[ 321], 99.95th=[ 760], | 99.99th=[ 760] bw ( KiB/s): min= 7, max= 111, per=27.54%, avg=26.71, stdev=17.49, samples=431 iops : min= 1, max= 27, avg= 6.06, stdev= 4.40, samples=431 write: IOPS=6, BW=25.8KiB/s (26.5kB/s)(6348KiB/245655msec); 0 zone resets clat (msec): min=32, max=421, avg=124.80, stdev=56.73 lat (msec): min=32, max=421, avg=124.80, stdev=56.73 clat percentiles (msec): | 1.00th=[ 45], 5.00th=[ 58], 10.00th=[ 67], 20.00th=[ 80], | 30.00th=[ 91], 40.00th=[ 100], 50.00th=[ 112], 60.00th=[ 127], | 70.00th=[ 144], 80.00th=[ 167], 90.00th=[ 197], 95.00th=[ 234], | 99.00th=[ 330], 99.50th=[ 351], 99.90th=[ 418], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 7, max= 80, per=24.88%, avg=25.37, stdev=10.89, samples=484 iops : min= 1, max= 20, avg= 5.72, stdev= 2.77, samples=484 lat (msec) : 10=4.85%, 20=18.26%, 50=18.59%, 100=25.55%, 250=30.96% lat (msec) : 500=1.76%, 1000=0.03% cpu : usr=0.04%, sys=1.33%, ctx=5051, 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=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=145033: Mon Jul 13 15:33:39 2026 read: IOPS=6, BW=24.6KiB/s (25.2kB/s)(6028KiB/244903msec) clat (msec): min=5, max=253, avg=31.99, stdev=30.14 lat (msec): min=5, max=253, avg=31.99, stdev=30.14 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 18], 50.00th=[ 22], 60.00th=[ 26], | 70.00th=[ 33], 80.00th=[ 44], 90.00th=[ 68], 95.00th=[ 97], | 99.00th=[ 153], 99.50th=[ 182], 99.90th=[ 232], 99.95th=[ 253], | 99.99th=[ 253] bw ( KiB/s): min= 7, max= 93, per=27.32%, avg=26.50, stdev=17.13, samples=440 iops : min= 1, max= 23, avg= 6.01, stdev= 4.29, samples=440 write: IOPS=6, BW=25.6KiB/s (26.2kB/s)(6260KiB/244903msec); 0 zone resets clat (msec): min=30, max=956, avg=125.50, stdev=59.90 lat (msec): min=30, max=956, avg=125.50, stdev=59.90 clat percentiles (msec): | 1.00th=[ 46], 5.00th=[ 57], 10.00th=[ 67], 20.00th=[ 80], | 30.00th=[ 91], 40.00th=[ 103], 50.00th=[ 114], 60.00th=[ 127], | 70.00th=[ 142], 80.00th=[ 163], 90.00th=[ 201], 95.00th=[ 234], | 99.00th=[ 305], 99.50th=[ 347], 99.90th=[ 600], 99.95th=[ 961], | 99.99th=[ 961] bw ( KiB/s): min= 7, max= 56, per=24.55%, avg=25.04, stdev=10.72, samples=482 iops : min= 1, max= 14, avg= 5.64, stdev= 2.71, samples=482 lat (msec) : 10=4.65%, 20=18.03%, 50=19.08%, 100=24.48%, 250=31.84% lat (msec) : 500=1.86%, 750=0.03%, 1000=0.03% cpu : usr=0.04%, sys=1.31%, ctx=5018, 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=145034: Mon Jul 13 15:33:39 2026 read: IOPS=6, BW=24.7KiB/s (25.3kB/s)(6052KiB/244904msec) clat (msec): min=5, max=389, avg=30.98, stdev=30.05 lat (msec): min=5, max=389, avg=30.98, stdev=30.05 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 18], 50.00th=[ 21], 60.00th=[ 25], | 70.00th=[ 31], 80.00th=[ 42], 90.00th=[ 67], 95.00th=[ 88], | 99.00th=[ 142], 99.50th=[ 167], 99.90th=[ 296], 99.95th=[ 388], | 99.99th=[ 388] bw ( KiB/s): min= 7, max= 103, per=27.58%, avg=26.75, stdev=18.29, samples=438 iops : min= 1, max= 25, avg= 6.07, stdev= 4.58, samples=438 write: IOPS=6, BW=25.5KiB/s (26.1kB/s)(6236KiB/244904msec); 0 zone resets clat (msec): min=33, max=961, avg=126.83, stdev=59.96 lat (msec): min=33, max=961, avg=126.83, stdev=59.96 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 60], 10.00th=[ 68], 20.00th=[ 82], | 30.00th=[ 92], 40.00th=[ 103], 50.00th=[ 115], 60.00th=[ 128], | 70.00th=[ 146], 80.00th=[ 167], 90.00th=[ 201], 95.00th=[ 228], | 99.00th=[ 321], 99.50th=[ 368], 99.90th=[ 439], 99.95th=[ 961], | 99.99th=[ 961] bw ( KiB/s): min= 7, max= 55, per=24.53%, avg=25.02, stdev=10.49, samples=481 iops : min= 1, max= 13, avg= 5.63, stdev= 2.68, samples=481 lat (msec) : 10=3.97%, 20=19.34%, 50=19.11%, 100=24.77%, 250=31.12% lat (msec) : 500=1.66%, 1000=0.03% cpu : usr=0.04%, sys=1.35%, ctx=5170, 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=97.5KiB/s (99.8kB/s), 24.2KiB/s-24.7KiB/s (24.8kB/s-25.3kB/s), io=23.4MiB (24.6MB), run=244903-246323msec WRITE: bw=102KiB/s (105kB/s), 25.5KiB/s-25.8KiB/s (26.1kB/s-26.5kB/s), io=24.6MiB (25.7MB), run=244903-246323msec 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=145088: Mon Jul 13 15:34:18 2026 read: IOPS=13, BW=220KiB/s (226kB/s)(5920KiB/26874msec) clat (usec): min=37, max=226996, avg=38762.69, stdev=32382.26 lat (usec): min=38, max=226997, avg=38763.91, stdev=32382.25 clat percentiles (usec): | 1.00th=[ 42], 5.00th=[ 55], 10.00th=[ 62], 20.00th=[ 10028], | 30.00th=[ 23200], 40.00th=[ 29754], 50.00th=[ 36439], 60.00th=[ 41157], | 70.00th=[ 48497], 80.00th=[ 58983], 90.00th=[ 72877], 95.00th=[ 93848], | 99.00th=[156238], 99.50th=[219153], 99.90th=[227541], 99.95th=[227541], | 99.99th=[227541] bw ( KiB/s): min= 31, max= 466, per=28.52%, avg=219.88, stdev=105.15, samples=52 iops : min= 1, max= 29, avg=13.00, stdev= 6.61, samples=52 write: IOPS=14, BW=237KiB/s (243kB/s)(6368KiB/26874msec); 0 zone resets clat (usec): min=1338, max=215565, avg=30352.59, stdev=34099.28 lat (usec): min=1341, max=215568, avg=30354.70, stdev=34099.63 clat percentiles (usec): | 1.00th=[ 1450], 5.00th=[ 1762], 10.00th=[ 2024], 20.00th=[ 4817], | 30.00th=[ 7439], 40.00th=[ 11338], 50.00th=[ 15795], 60.00th=[ 26346], | 70.00th=[ 37487], 80.00th=[ 55313], 90.00th=[ 76022], 95.00th=[ 95945], | 99.00th=[162530], 99.50th=[185598], 99.90th=[214959], 99.95th=[214959], | 99.99th=[214959] bw ( KiB/s): min= 23, max= 541, per=29.40%, avg=238.71, stdev=113.38, samples=52 iops : min= 1, max= 33, avg=14.17, stdev= 7.09, samples=52 lat (usec) : 50=1.17%, 100=7.29%, 250=0.26%, 750=0.13% lat (msec) : 2=5.08%, 4=3.91%, 10=11.46%, 20=11.72%, 50=33.72% lat (msec) : 100=21.09%, 250=4.17% cpu : usr=0.09%, sys=6.15%, ctx=1389, 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=145089: Mon Jul 13 15:34:18 2026 read: IOPS=12, BW=195KiB/s (199kB/s)(5744KiB/29493msec) clat (usec): min=39, max=255714, avg=41666.17, stdev=34363.76 lat (usec): min=39, max=255715, avg=41667.56, stdev=34363.90 clat percentiles (usec): | 1.00th=[ 50], 5.00th=[ 57], 10.00th=[ 63], 20.00th=[ 16057], | 30.00th=[ 24511], 40.00th=[ 31327], 50.00th=[ 37487], 60.00th=[ 43779], | 70.00th=[ 52167], 80.00th=[ 61080], 90.00th=[ 85459], 95.00th=[102237], | 99.00th=[175113], 99.50th=[193987], 99.90th=[254804], 99.95th=[254804], | 99.99th=[254804] bw ( KiB/s): min= 23, max= 445, per=26.25%, avg=202.36, stdev=84.46, samples=55 iops : min= 1, max= 27, avg=11.93, stdev= 5.32, samples=55 write: IOPS=13, BW=222KiB/s (227kB/s)(6544KiB/29493msec); 0 zone resets clat (usec): min=1161, max=453034, avg=34613.65, stdev=45839.73 lat (usec): min=1163, max=453036, avg=34615.86, stdev=45839.59 clat percentiles (usec): | 1.00th=[ 1647], 5.00th=[ 1893], 10.00th=[ 2245], 20.00th=[ 4228], | 30.00th=[ 6980], 40.00th=[ 12911], 50.00th=[ 21365], 60.00th=[ 31327], | 70.00th=[ 41681], 80.00th=[ 56361], 90.00th=[ 76022], 95.00th=[107480], | 99.00th=[225444], 99.50th=[299893], 99.90th=[455082], 99.95th=[455082], | 99.99th=[455082] bw ( KiB/s): min= 23, max= 542, per=27.40%, avg=222.47, stdev=108.11, samples=57 iops : min= 1, max= 33, avg=13.19, stdev= 6.81, samples=57 lat (usec) : 50=0.65%, 100=6.90%, 250=0.13%, 500=0.13%, 1000=0.13% lat (msec) : 2=3.91%, 4=5.86%, 10=9.90%, 20=9.24%, 50=36.07% lat (msec) : 100=20.96%, 250=5.47%, 500=0.65% cpu : usr=0.07%, sys=5.93%, ctx=1440, 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=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=145090: Mon Jul 13 15:34:18 2026 read: IOPS=12, BW=204KiB/s (208kB/s)(6256KiB/30731msec) clat (usec): min=33, max=468630, avg=41003.93, stdev=37944.19 lat (usec): min=33, max=468631, avg=41005.06, stdev=37944.23 clat percentiles (usec): | 1.00th=[ 41], 5.00th=[ 55], 10.00th=[ 59], 20.00th=[ 99], | 30.00th=[ 24511], 40.00th=[ 32375], 50.00th=[ 38011], 60.00th=[ 44303], | 70.00th=[ 52167], 80.00th=[ 62653], 90.00th=[ 78119], 95.00th=[ 93848], | 99.00th=[154141], 99.50th=[168821], 99.90th=[467665], 99.95th=[467665], | 99.99th=[467665] bw ( KiB/s): min= 31, max= 717, per=26.99%, avg=208.12, stdev=109.85, samples=59 iops : min= 1, max= 44, avg=12.29, stdev= 6.95, samples=59 write: IOPS=12, BW=196KiB/s (201kB/s)(6032KiB/30731msec); 0 zone resets clat (usec): min=1237, max=417069, avg=38605.81, stdev=47514.02 lat (usec): min=1238, max=417074, avg=38608.03, stdev=47514.15 clat percentiles (usec): | 1.00th=[ 1614], 5.00th=[ 1876], 10.00th=[ 2089], 20.00th=[ 5145], | 30.00th=[ 8979], 40.00th=[ 14746], 50.00th=[ 22414], 60.00th=[ 32375], | 70.00th=[ 44303], 80.00th=[ 64226], 90.00th=[ 98042], 95.00th=[122160], | 99.00th=[238027], 99.50th=[291505], 99.90th=[417334], 99.95th=[417334], | 99.99th=[417334] bw ( KiB/s): min= 24, max= 509, per=24.22%, avg=196.63, stdev=91.97, samples=60 iops : min= 1, max= 31, avg=11.57, stdev= 5.81, samples=60 lat (usec) : 50=1.69%, 100=8.59%, 250=0.65% lat (msec) : 2=3.91%, 4=4.30%, 10=8.07%, 20=8.20%, 50=35.42% lat (msec) : 100=22.27%, 250=6.51%, 500=0.39% cpu : usr=0.08%, sys=5.63%, ctx=1489, 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=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=145091: Mon Jul 13 15:34:18 2026 read: IOPS=12, BW=194KiB/s (199kB/s)(6032KiB/31031msec) clat (usec): min=35, max=282715, avg=42030.70, stdev=35673.46 lat (usec): min=36, max=282716, avg=42031.87, stdev=35673.52 clat percentiles (usec): | 1.00th=[ 41], 5.00th=[ 54], 10.00th=[ 61], 20.00th=[ 15533], | 30.00th=[ 24249], 40.00th=[ 30802], 50.00th=[ 35914], 60.00th=[ 44303], | 70.00th=[ 52167], 80.00th=[ 61604], 90.00th=[ 88605], 95.00th=[112722], | 99.00th=[162530], 99.50th=[181404], 99.90th=[283116], 99.95th=[283116], | 99.99th=[283116] bw ( KiB/s): min= 31, max= 510, per=27.37%, avg=211.02, stdev=92.38, samples=55 iops : min= 1, max= 31, avg=12.47, stdev= 5.83, samples=55 write: IOPS=12, BW=202KiB/s (206kB/s)(6256KiB/31031msec); 0 zone resets clat (usec): min=1132, max=432452, avg=37802.60, stdev=55598.74 lat (usec): min=1133, max=432454, avg=37821.16, stdev=55649.74 clat percentiles (usec): | 1.00th=[ 1631], 5.00th=[ 1811], 10.00th=[ 1991], 20.00th=[ 5276], | 30.00th=[ 9503], 40.00th=[ 13698], 50.00th=[ 18482], 60.00th=[ 27919], | 70.00th=[ 39584], 80.00th=[ 55313], 90.00th=[ 88605], 95.00th=[116917], | 99.00th=[354419], 99.50th=[383779], 99.90th=[434111], 99.95th=[434111], | 99.99th=[434111] bw ( KiB/s): min= 25, max= 464, per=24.85%, avg=201.80, stdev=110.10, samples=60 iops : min= 1, max= 29, avg=11.90, stdev= 6.96, samples=60 lat (usec) : 50=1.69%, 100=7.68% lat (msec) : 2=5.21%, 4=3.78%, 10=7.68%, 20=12.37%, 50=33.20% lat (msec) : 100=21.22%, 250=6.12%, 500=1.04% cpu : usr=0.09%, sys=5.41%, ctx=1457, 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=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=772KiB/s (790kB/s), 194KiB/s-220KiB/s (199kB/s-226kB/s), io=23.4MiB (24.5MB), run=26874-31031msec WRITE: bw=812KiB/s (832kB/s), 196KiB/s-237KiB/s (201kB/s-243kB/s), io=24.6MiB (25.8MB), run=26874-31031msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145084: Mon Jul 13 15:34:57 2026 read: IOPS=5, BW=84.3KiB/s (86.4kB/s)(5920KiB/70189msec) clat (msec): min=6, max=327, avg=39.33, stdev=42.19 lat (msec): min=6, max=327, avg=39.33, stdev=42.19 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 18], 40.00th=[ 23], 50.00th=[ 25], 60.00th=[ 30], | 70.00th=[ 35], 80.00th=[ 51], 90.00th=[ 84], 95.00th=[ 136], | 99.00th=[ 266], 99.50th=[ 271], 99.90th=[ 330], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 30, max= 319, per=27.26%, avg=92.95, stdev=62.85, samples=123 iops : min= 1, max= 19, avg= 5.09, stdev= 3.99, samples=123 write: IOPS=5, BW=90.7KiB/s (92.9kB/s)(6368KiB/70189msec); 0 zone resets clat (msec): min=38, max=436, avg=139.58, stdev=70.14 lat (msec): min=38, max=436, avg=139.59, stdev=70.14 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 66], 10.00th=[ 73], 20.00th=[ 88], | 30.00th=[ 96], 40.00th=[ 109], 50.00th=[ 121], 60.00th=[ 133], | 70.00th=[ 153], 80.00th=[ 180], 90.00th=[ 239], 95.00th=[ 296], | 99.00th=[ 393], 99.50th=[ 414], 99.90th=[ 439], 99.95th=[ 439], | 99.99th=[ 439] bw ( KiB/s): min= 26, max= 224, per=25.84%, avg=92.75, stdev=42.38, samples=134 iops : min= 1, max= 14, avg= 5.07, stdev= 2.75, samples=134 lat (msec) : 10=1.69%, 20=15.23%, 50=22.01%, 100=22.40%, 250=33.85% lat (msec) : 500=4.82% cpu : usr=0.04%, sys=1.29%, ctx=1339, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145085: Mon Jul 13 15:34:57 2026 read: IOPS=5, BW=81.9KiB/s (83.8kB/s)(5744KiB/70166msec) clat (msec): min=6, max=342, avg=37.40, stdev=39.36 lat (msec): min=6, max=342, avg=37.40, stdev=39.36 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 24], 60.00th=[ 30], | 70.00th=[ 39], 80.00th=[ 48], 90.00th=[ 78], 95.00th=[ 99], | 99.00th=[ 262], 99.50th=[ 264], 99.90th=[ 342], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 26, max= 320, per=28.62%, avg=97.59, stdev=64.50, samples=115 iops : min= 1, max= 20, avg= 5.38, stdev= 4.09, samples=115 write: IOPS=5, BW=93.3KiB/s (95.5kB/s)(6544KiB/70166msec); 0 zone resets clat (msec): min=42, max=485, avg=138.00, stdev=71.04 lat (msec): min=42, max=485, avg=138.01, stdev=71.04 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 66], 10.00th=[ 73], 20.00th=[ 86], | 30.00th=[ 99], 40.00th=[ 108], 50.00th=[ 121], 60.00th=[ 133], | 70.00th=[ 150], 80.00th=[ 176], 90.00th=[ 220], 95.00th=[ 279], | 99.00th=[ 388], 99.50th=[ 456], 99.90th=[ 485], 99.95th=[ 485], | 99.99th=[ 485] bw ( KiB/s): min= 26, max= 224, per=25.95%, avg=93.16, stdev=42.93, samples=137 iops : min= 1, max= 14, avg= 5.09, stdev= 2.78, samples=137 lat (msec) : 10=1.69%, 20=16.54%, 50=20.44%, 100=22.92%, 250=33.98% lat (msec) : 500=4.43% cpu : usr=0.03%, sys=1.33%, ctx=1281, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145086: Mon Jul 13 15:34:57 2026 read: IOPS=5, BW=91.6KiB/s (93.8kB/s)(6256KiB/68285msec) clat (msec): min=6, max=267, avg=38.08, stdev=38.98 lat (msec): min=6, max=267, avg=38.08, stdev=38.98 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 18], 40.00th=[ 22], 50.00th=[ 25], 60.00th=[ 29], | 70.00th=[ 33], 80.00th=[ 45], 90.00th=[ 92], 95.00th=[ 126], | 99.00th=[ 192], 99.50th=[ 226], 99.90th=[ 268], 99.95th=[ 268], | 99.99th=[ 268] bw ( KiB/s): min= 30, max= 320, per=29.46%, avg=100.45, stdev=66.98, samples=123 iops : min= 1, max= 20, avg= 5.54, stdev= 4.25, samples=123 write: IOPS=5, BW=88.3KiB/s (90.5kB/s)(6032KiB/68285msec); 0 zone resets clat (msec): min=41, max=488, avg=141.04, stdev=70.25 lat (msec): min=41, max=488, avg=141.04, stdev=70.25 clat percentiles (msec): | 1.00th=[ 58], 5.00th=[ 74], 10.00th=[ 82], 20.00th=[ 91], | 30.00th=[ 103], 40.00th=[ 111], 50.00th=[ 118], 60.00th=[ 132], | 70.00th=[ 148], 80.00th=[ 176], 90.00th=[ 224], 95.00th=[ 288], | 99.00th=[ 430], 99.50th=[ 456], 99.90th=[ 489], 99.95th=[ 489], | 99.99th=[ 489] bw ( KiB/s): min= 26, max= 191, per=24.86%, avg=89.26, stdev=39.17, samples=133 iops : min= 1, max= 11, avg= 4.84, stdev= 2.52, samples=133 lat (msec) : 10=2.21%, 20=16.15%, 50=23.44%, 100=18.23%, 250=36.07% lat (msec) : 500=3.91% cpu : usr=0.04%, sys=1.31%, ctx=1340, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145087: Mon Jul 13 15:34:57 2026 read: IOPS=5, BW=86.4KiB/s (88.5kB/s)(6032KiB/69823msec) clat (msec): min=6, max=453, avg=38.97, stdev=47.48 lat (msec): min=6, max=453, avg=38.98, stdev=47.48 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 24], 60.00th=[ 29], | 70.00th=[ 35], 80.00th=[ 46], 90.00th=[ 89], 95.00th=[ 133], | 99.00th=[ 268], 99.50th=[ 305], 99.90th=[ 456], 99.95th=[ 456], | 99.99th=[ 456] bw ( KiB/s): min= 31, max= 288, per=30.06%, avg=102.50, stdev=65.15, samples=115 iops : min= 1, max= 18, avg= 5.70, stdev= 4.17, samples=115 write: IOPS=5, BW=89.6KiB/s (91.7kB/s)(6256KiB/69823msec); 0 zone resets clat (msec): min=43, max=441, avg=140.10, stdev=68.35 lat (msec): min=43, max=441, avg=140.10, stdev=68.35 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 69], 10.00th=[ 77], 20.00th=[ 89], | 30.00th=[ 102], 40.00th=[ 111], 50.00th=[ 124], 60.00th=[ 136], | 70.00th=[ 150], 80.00th=[ 180], 90.00th=[ 228], 95.00th=[ 284], | 99.00th=[ 409], 99.50th=[ 414], 99.90th=[ 443], 99.95th=[ 443], | 99.99th=[ 443] bw ( KiB/s): min= 29, max= 192, per=25.07%, avg=89.99, stdev=41.11, samples=137 iops : min= 1, max= 12, avg= 4.89, stdev= 2.69, samples=137 lat (msec) : 10=2.60%, 20=17.97%, 50=20.05%, 100=19.79%, 250=35.03% lat (msec) : 500=4.56% cpu : usr=0.04%, sys=1.32%, ctx=1366, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=341KiB/s (349kB/s), 81.9KiB/s-91.6KiB/s (83.8kB/s-93.8kB/s), io=23.4MiB (24.5MB), run=68285-70189msec WRITE: bw=359KiB/s (368kB/s), 88.3KiB/s-93.3KiB/s (90.5kB/s-95.5kB/s), io=24.6MiB (25.8MB), run=68285-70189msec 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=145109: Mon Jul 13 15:35:14 2026 read: IOPS=1, BW=1460KiB/s (1495kB/s)(7168KiB/4910msec) clat (msec): min=8, max=583, avg=249.65, stdev=194.91 lat (msec): min=8, max=583, avg=249.76, stdev=195.12 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 9], 10.00th=[ 9], 20.00th=[ 125], | 30.00th=[ 130], 40.00th=[ 130], 50.00th=[ 220], 60.00th=[ 266], | 70.00th=[ 266], 80.00th=[ 418], 90.00th=[ 584], 95.00th=[ 584], | 99.00th=[ 584], 99.50th=[ 584], 99.90th=[ 584], 99.95th=[ 584], | 99.99th=[ 584] bw ( KiB/s): min= 1477, max= 4096, per=82.40%, avg=2401.00, stdev=1158.32, samples=4 iops : min= 1, max= 4, avg= 1.75, stdev= 1.50, samples=4 write: IOPS=1, BW=1043KiB/s (1068kB/s)(5120KiB/4910msec); 0 zone resets clat (msec): min=92, max=2335, avg=624.40, stdev=962.96 lat (msec): min=92, max=2335, avg=624.49, stdev=962.97 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 93], 10.00th=[ 93], 20.00th=[ 93], | 30.00th=[ 133], 40.00th=[ 133], 50.00th=[ 178], 60.00th=[ 178], | 70.00th=[ 384], 80.00th=[ 384], 90.00th=[ 2333], 95.00th=[ 2333], | 99.00th=[ 2333], 99.50th=[ 2333], 99.90th=[ 2333], 99.95th=[ 2333], | 99.99th=[ 2333] bw ( KiB/s): min= 1992, max= 5919, per=96.97%, avg=3955.50, stdev=2776.81, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 lat (msec) : 10=8.33%, 100=8.33%, 250=41.67%, 500=25.00%, 750=8.33% lat (msec) : >=2000=8.33% cpu : usr=0.02%, sys=9.27%, ctx=289, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145111: Mon Jul 13 15:35:14 2026 read: IOPS=0, BW=300KiB/s (308kB/s)(2048KiB/6818msec) clat (usec): min=474, max=2718.0k, avg=1359729.66, stdev=1922276.49 lat (usec): min=475, max=2718.0k, avg=1359731.36, stdev=1922277.54 clat percentiles (usec): | 1.00th=[ 474], 5.00th=[ 474], 10.00th=[ 474], | 20.00th=[ 474], 30.00th=[ 474], 40.00th=[ 474], | 50.00th=[ 474], 60.00th=[2734687], 70.00th=[2734687], | 80.00th=[2734687], 90.00th=[2734687], 95.00th=[2734687], | 99.00th=[2734687], 99.50th=[2734687], 99.90th=[2734687], | 99.95th=[2734687], 99.99th=[2734687] bw ( KiB/s): min= 1973, max= 2039, per=68.84%, avg=2006.00, stdev=46.67, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1502KiB/s (1538kB/s)(10.0MiB/6818msec); 0 zone resets clat (msec): min=96, max=1355, avg=403.88, stdev=359.54 lat (msec): min=96, max=1355, avg=404.08, stdev=359.52 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 96], 10.00th=[ 96], 20.00th=[ 169], | 30.00th=[ 218], 40.00th=[ 243], 50.00th=[ 300], 60.00th=[ 321], | 70.00th=[ 351], 80.00th=[ 422], 90.00th=[ 567], 95.00th=[ 1351], | 99.00th=[ 1351], 99.50th=[ 1351], 99.90th=[ 1351], 99.95th=[ 1351], | 99.99th=[ 1351] bw ( KiB/s): min= 1965, max= 5919, per=88.52%, avg=3610.60, stdev=1655.97, samples=5 iops : min= 1, max= 5, avg= 2.60, stdev= 1.67, samples=5 lat (usec) : 500=8.33% lat (msec) : 100=8.33%, 250=25.00%, 500=33.33%, 750=8.33%, 2000=8.33% lat (msec) : >=2000=8.33% cpu : usr=0.01%, sys=9.36%, ctx=608, 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=145112: Mon Jul 13 15:35:14 2026 read: IOPS=0, BW=874KiB/s (895kB/s)(6144KiB/7028msec) clat (usec): min=443, max=231992, avg=167266.21, stdev=93319.37 lat (usec): min=444, max=231993, avg=167267.24, stdev=93319.39 clat percentiles (usec): | 1.00th=[ 445], 5.00th=[ 445], 10.00th=[ 445], 20.00th=[111674], | 30.00th=[111674], 40.00th=[217056], 50.00th=[217056], 60.00th=[219153], | 70.00th=[225444], 80.00th=[225444], 90.00th=[231736], 95.00th=[231736], | 99.00th=[231736], 99.50th=[231736], 99.90th=[231736], 99.95th=[231736], | 99.99th=[231736] bw ( KiB/s): min= 1996, max= 3946, per=100.00%, avg=3296.00, stdev=1125.83, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=0, BW=874KiB/s (895kB/s)(6144KiB/7028msec); 0 zone resets clat (msec): min=186, max=3036, avg=976.38, stdev=1033.38 lat (msec): min=187, max=3036, avg=976.47, stdev=1033.37 clat percentiles (msec): | 1.00th=[ 188], 5.00th=[ 188], 10.00th=[ 188], 20.00th=[ 485], | 30.00th=[ 485], 40.00th=[ 609], 50.00th=[ 609], 60.00th=[ 701], | 70.00th=[ 844], 80.00th=[ 844], 90.00th=[ 3037], 95.00th=[ 3037], | 99.00th=[ 3037], 99.50th=[ 3037], 99.90th=[ 3037], 99.95th=[ 3037], | 99.99th=[ 3037] bw ( KiB/s): min= 1973, max= 2039, per=49.11%, avg=2003.00, stdev=29.22, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (usec) : 500=8.33% lat (msec) : 250=50.00%, 500=8.33%, 750=16.67%, 1000=8.33%, >=2000=8.33% cpu : usr=0.00%, sys=7.51%, ctx=173, 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=145114: Mon Jul 13 15:35:14 2026 read: IOPS=0, BW=880KiB/s (902kB/s)(5120KiB/5815msec) clat (usec): min=945, max=216113, avg=108921.52, stdev=103449.53 lat (usec): min=946, max=216114, avg=108922.63, stdev=103449.47 clat percentiles (usec): | 1.00th=[ 947], 5.00th=[ 947], 10.00th=[ 947], 20.00th=[ 947], | 30.00th=[ 996], 40.00th=[ 996], 50.00th=[130548], 60.00th=[130548], | 70.00th=[196084], 80.00th=[196084], 90.00th=[217056], 95.00th=[217056], | 99.00th=[217056], 99.50th=[217056], 99.90th=[217056], 99.95th=[217056], | 99.99th=[217056] bw ( KiB/s): min= 1973, max= 6095, per=100.00%, avg=4034.00, stdev=2914.69, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=1, BW=1233KiB/s (1262kB/s)(7168KiB/5815msec); 0 zone resets clat (msec): min=111, max=3051, avg=733.89, stdev=1050.40 lat (msec): min=112, max=3051, avg=733.96, stdev=1050.40 clat percentiles (msec): | 1.00th=[ 112], 5.00th=[ 112], 10.00th=[ 112], 20.00th=[ 140], | 30.00th=[ 155], 40.00th=[ 155], 50.00th=[ 368], 60.00th=[ 535], | 70.00th=[ 535], 80.00th=[ 776], 90.00th=[ 3037], 95.00th=[ 3037], | 99.00th=[ 3037], 99.50th=[ 3037], 99.90th=[ 3037], 99.95th=[ 3037], | 99.99th=[ 3037] bw ( KiB/s): min= 1973, max= 4063, per=59.26%, avg=2417.20, stdev=920.38, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (usec) : 1000=16.67% lat (msec) : 250=50.00%, 500=8.33%, 750=8.33%, 1000=8.33%, >=2000=8.33% cpu : usr=0.02%, sys=7.81%, ctx=147, 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=2914KiB/s (2984kB/s), 300KiB/s-1460KiB/s (308kB/s-1495kB/s), io=20.0MiB (20.0MB), run=4910-7028msec WRITE: bw=4080KiB/s (4178kB/s), 874KiB/s-1502KiB/s (895kB/s-1538kB/s), io=28.0MiB (29.4MB), run=4910-7028msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145108: Mon Jul 13 15:35:15 2026 read: IOPS=1, BW=1081KiB/s (1107kB/s)(7168KiB/6629msec) clat (msec): min=87, max=514, avg=241.65, stdev=160.03 lat (msec): min=87, max=514, avg=241.65, stdev=160.03 clat percentiles (msec): | 1.00th=[ 88], 5.00th=[ 88], 10.00th=[ 88], 20.00th=[ 108], | 30.00th=[ 123], 40.00th=[ 123], 50.00th=[ 232], 60.00th=[ 234], | 70.00th=[ 234], 80.00th=[ 393], 90.00th=[ 514], 95.00th=[ 514], | 99.00th=[ 514], 99.50th=[ 514], 99.90th=[ 514], 99.95th=[ 514], | 99.99th=[ 514] bw ( KiB/s): min= 1686, max= 6131, per=100.00%, avg=2960.00, stdev=2119.60, samples=4 iops : min= 1, max= 5, avg= 2.00, stdev= 2.00, samples=4 write: IOPS=0, BW=772KiB/s (791kB/s)(5120KiB/6629msec); 0 zone resets clat (msec): min=148, max=2849, avg=943.25, stdev=1094.22 lat (msec): min=148, max=2849, avg=943.36, stdev=1094.22 clat percentiles (msec): | 1.00th=[ 148], 5.00th=[ 148], 10.00th=[ 148], 20.00th=[ 148], | 30.00th=[ 426], 40.00th=[ 426], 50.00th=[ 447], 60.00th=[ 447], | 70.00th=[ 844], 80.00th=[ 844], 90.00th=[ 2836], 95.00th=[ 2836], | 99.00th=[ 2836], 99.50th=[ 2836], 99.90th=[ 2836], 99.95th=[ 2836], | 99.99th=[ 2836] bw ( KiB/s): min= 2000, max= 4047, per=75.20%, avg=2691.33, stdev=1174.12, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 100=8.33%, 250=41.67%, 500=25.00%, 750=8.33%, 1000=8.33% lat (msec) : >=2000=8.33% cpu : usr=0.02%, sys=2.90%, ctx=92, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145110: Mon Jul 13 15:35:15 2026 read: IOPS=0, BW=256KiB/s (262kB/s)(2048KiB/8010msec) clat (msec): min=126, max=2633, avg=1380.17, stdev=1772.52 lat (msec): min=126, max=2633, avg=1380.17, stdev=1772.52 clat percentiles (msec): | 1.00th=[ 127], 5.00th=[ 127], 10.00th=[ 127], 20.00th=[ 127], | 30.00th=[ 127], 40.00th=[ 127], 50.00th=[ 127], 60.00th=[ 2635], | 70.00th=[ 2635], 80.00th=[ 2635], 90.00th=[ 2635], 95.00th=[ 2635], | 99.00th=[ 2635], 99.50th=[ 2635], 99.90th=[ 2635], 99.95th=[ 2635], | 99.99th=[ 2635] bw ( KiB/s): min= 1903, max= 2035, per=77.03%, avg=1969.00, stdev=93.34, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1278KiB/s (1309kB/s)(10.0MiB/8010msec); 0 zone resets clat (msec): min=153, max=1511, avg=514.53, stdev=461.20 lat (msec): min=153, max=1511, avg=514.63, stdev=461.21 clat percentiles (msec): | 1.00th=[ 155], 5.00th=[ 155], 10.00th=[ 155], 20.00th=[ 220], | 30.00th=[ 224], 40.00th=[ 275], 50.00th=[ 288], 60.00th=[ 305], | 70.00th=[ 351], 80.00th=[ 659], 90.00th=[ 1167], 95.00th=[ 1519], | 99.00th=[ 1519], 99.50th=[ 1519], 99.90th=[ 1519], 99.95th=[ 1519], | 99.99th=[ 1519] bw ( KiB/s): min= 1686, max= 4079, per=88.77%, avg=3177.20, stdev=1208.39, samples=5 iops : min= 1, max= 3, avg= 2.20, stdev= 1.10, samples=5 lat (msec) : 250=33.33%, 500=33.33%, 750=8.33%, 2000=16.67%, >=2000=8.33% cpu : usr=0.00%, sys=1.71%, ctx=78, 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=145113: Mon Jul 13 15:35:15 2026 read: IOPS=0, BW=930KiB/s (952kB/s)(6144KiB/6607msec) clat (msec): min=108, max=329, avg=166.34, stdev=86.78 lat (msec): min=108, max=329, avg=166.34, stdev=86.78 clat percentiles (msec): | 1.00th=[ 109], 5.00th=[ 109], 10.00th=[ 109], 20.00th=[ 114], | 30.00th=[ 114], 40.00th=[ 118], 50.00th=[ 118], 60.00th=[ 129], | 70.00th=[ 201], 80.00th=[ 201], 90.00th=[ 330], 95.00th=[ 330], | 99.00th=[ 330], 99.50th=[ 330], 99.90th=[ 330], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 1996, max= 4000, per=100.00%, avg=3123.00, stdev=1025.12, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=0, BW=930KiB/s (952kB/s)(6144KiB/6607msec); 0 zone resets clat (msec): min=227, max=2854, avg=926.63, stdev=961.88 lat (msec): min=227, max=2854, avg=926.96, stdev=961.80 clat percentiles (msec): | 1.00th=[ 228], 5.00th=[ 228], 10.00th=[ 228], 20.00th=[ 443], | 30.00th=[ 443], 40.00th=[ 667], 50.00th=[ 667], 60.00th=[ 676], | 70.00th=[ 693], 80.00th=[ 693], 90.00th=[ 2869], 95.00th=[ 2869], | 99.00th=[ 2869], 99.50th=[ 2869], 99.90th=[ 2869], 99.95th=[ 2869], | 99.99th=[ 2869] bw ( KiB/s): min= 1686, max= 2043, per=53.93%, avg=1930.20, stdev=146.66, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 250=50.00%, 500=16.67%, 750=25.00%, >=2000=8.33% cpu : usr=0.00%, sys=2.16%, ctx=46, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145115: Mon Jul 13 15:35:15 2026 read: IOPS=0, BW=654KiB/s (669kB/s)(5120KiB/7833msec) clat (msec): min=94, max=152, avg=117.29, stdev=25.56 lat (msec): min=94, max=152, avg=117.29, stdev=25.56 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 95], 10.00th=[ 95], 20.00th=[ 95], | 30.00th=[ 100], 40.00th=[ 100], 50.00th=[ 104], 60.00th=[ 104], | 70.00th=[ 136], 80.00th=[ 136], 90.00th=[ 153], 95.00th=[ 153], | 99.00th=[ 153], 99.50th=[ 153], 99.90th=[ 153], 99.95th=[ 153], | 99.99th=[ 153] bw ( KiB/s): min= 2019, max= 6107, per=100.00%, avg=4063.00, stdev=2890.65, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=0, BW=915KiB/s (937kB/s)(7168KiB/7833msec); 0 zone resets clat (msec): min=167, max=3850, avg=1014.22, stdev=1322.80 lat (msec): min=167, max=3851, avg=1014.31, stdev=1322.80 clat percentiles (msec): | 1.00th=[ 167], 5.00th=[ 167], 10.00th=[ 167], 20.00th=[ 211], | 30.00th=[ 222], 40.00th=[ 222], 50.00th=[ 376], 60.00th=[ 1028], | 70.00th=[ 1028], 80.00th=[ 1250], 90.00th=[ 3842], 95.00th=[ 3842], | 99.00th=[ 3842], 99.50th=[ 3842], 99.90th=[ 3842], 99.95th=[ 3842], | 99.99th=[ 3842] bw ( KiB/s): min= 1996, max= 4079, per=66.03%, avg=2363.17, stdev=840.69, samples=6 iops : min= 1, max= 3, avg= 1.33, stdev= 0.82, samples=6 lat (msec) : 100=16.67%, 250=50.00%, 500=8.33%, 2000=16.67%, >=2000=8.33% cpu : usr=0.04%, sys=2.29%, ctx=83, 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=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=2557KiB/s (2618kB/s), 256KiB/s-1081KiB/s (262kB/s-1107kB/s), io=20.0MiB (20.0MB), run=6607-8010msec WRITE: bw=3580KiB/s (3665kB/s), 772KiB/s-1278KiB/s (791kB/s-1309kB/s), io=28.0MiB (29.4MB), run=6607-8010msec 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=145124: Mon Jul 13 15:35:29 2026 read: IOPS=1, BW=5953KiB/s (6096kB/s)(12.0MiB/2064msec) clat (msec): min=611, max=712, avg=672.17, stdev=53.15 lat (msec): min=611, max=712, avg=672.17, stdev=53.15 clat percentiles (msec): | 1.00th=[ 609], 5.00th=[ 609], 10.00th=[ 609], 20.00th=[ 609], | 30.00th=[ 609], 40.00th=[ 693], 50.00th=[ 693], 60.00th=[ 693], | 70.00th=[ 709], 80.00th=[ 709], 90.00th=[ 709], 95.00th=[ 709], | 99.00th=[ 709], 99.50th=[ 709], 99.90th=[ 709], 99.95th=[ 709], | 99.99th=[ 709] bw ( KiB/s): min= 8159, max= 8175, per=100.00%, avg=8167.00, stdev=11.31, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=100.00% cpu : usr=0.00%, sys=16.53%, ctx=513, majf=0, minf=7 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145127: Mon Jul 13 15:35:29 2026 read: IOPS=0, BW=1806KiB/s (1849kB/s)(4096KiB/2268msec) clat (nsec): min=355795k, max=355795k, avg=355794748.00, stdev= 0.00 lat (nsec): min=355797k, max=355797k, avg=355796858.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 355], 5.00th=[ 355], 10.00th=[ 355], 20.00th=[ 355], | 30.00th=[ 355], 40.00th=[ 355], 50.00th=[ 355], 60.00th=[ 355], | 70.00th=[ 355], 80.00th=[ 355], 90.00th=[ 355], 95.00th=[ 355], | 99.00th=[ 355], 99.50th=[ 355], 99.90th=[ 355], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 8159, max= 8159, per=100.00%, avg=8159.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3612KiB/s (3699kB/s)(8192KiB/2268msec); 0 zone resets clat (msec): min=669, max=987, avg=828.78, stdev=224.58 lat (msec): min=670, max=988, avg=829.33, stdev=224.41 clat percentiles (msec): | 1.00th=[ 667], 5.00th=[ 667], 10.00th=[ 667], 20.00th=[ 667], | 30.00th=[ 667], 40.00th=[ 667], 50.00th=[ 667], 60.00th=[ 986], | 70.00th=[ 986], 80.00th=[ 986], 90.00th=[ 986], 95.00th=[ 986], | 99.00th=[ 986], 99.50th=[ 986], 99.90th=[ 986], 99.95th=[ 986], | 99.99th=[ 986] bw ( KiB/s): min= 8175, max= 8175, per=73.15%, avg=8175.00, 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%, 1000=33.33% cpu : usr=0.00%, sys=6.18%, ctx=102, 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=145129: Mon Jul 13 15:35:29 2026 write: IOPS=1, BW=4191KiB/s (4292kB/s)(12.0MiB/2932msec); 0 zone resets clat (msec): min=365, max=1210, avg=920.63, stdev=480.58 lat (msec): min=366, max=1230, avg=927.47, stdev=486.44 clat percentiles (msec): | 1.00th=[ 368], 5.00th=[ 368], 10.00th=[ 368], 20.00th=[ 368], | 30.00th=[ 368], 40.00th=[ 1183], 50.00th=[ 1183], 60.00th=[ 1183], | 70.00th=[ 1217], 80.00th=[ 1217], 90.00th=[ 1217], 95.00th=[ 1217], | 99.00th=[ 1217], 99.50th=[ 1217], 99.90th=[ 1217], 99.95th=[ 1217], | 99.99th=[ 1217] bw ( KiB/s): min= 8143, max= 8175, per=73.01%, avg=8159.00, stdev=22.63, 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=4.98%, ctx=57, 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=145130: Mon Jul 13 15:35:29 2026 write: IOPS=1, BW=5297KiB/s (5424kB/s)(12.0MiB/2320msec); 0 zone resets clat (msec): min=352, max=1160, avg=685.34, stdev=422.07 lat (msec): min=353, max=1160, avg=685.71, stdev=422.09 clat percentiles (msec): | 1.00th=[ 355], 5.00th=[ 355], 10.00th=[ 355], 20.00th=[ 355], | 30.00th=[ 355], 40.00th=[ 542], 50.00th=[ 542], 60.00th=[ 542], | 70.00th=[ 1167], 80.00th=[ 1167], 90.00th=[ 1167], 95.00th=[ 1167], | 99.00th=[ 1167], 99.50th=[ 1167], 99.90th=[ 1167], 99.95th=[ 1167], | 99.99th=[ 1167] bw ( KiB/s): min= 8078, max= 8159, per=72.65%, avg=8118.50, stdev=57.28, 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=0.00%, sys=4.74%, ctx=53, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=7224KiB/s (7397kB/s), 1806KiB/s-5953KiB/s (1849kB/s-6096kB/s), io=16.0MiB (16.8MB), run=2064-2268msec WRITE: bw=10.9MiB/s (11.4MB/s), 3612KiB/s-5297KiB/s (3699kB/s-5424kB/s), io=32.0MiB (33.6MB), run=2268-2932msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145123: Mon Jul 13 15:35:30 2026 read: IOPS=1, BW=5313KiB/s (5440kB/s)(12.0MiB/2313msec) clat (msec): min=691, max=782, avg=727.07, stdev=48.71 lat (msec): min=691, max=782, avg=727.07, stdev=48.71 clat percentiles (msec): | 1.00th=[ 693], 5.00th=[ 693], 10.00th=[ 693], 20.00th=[ 693], | 30.00th=[ 693], 40.00th=[ 709], 50.00th=[ 709], 60.00th=[ 709], | 70.00th=[ 785], 80.00th=[ 785], 90.00th=[ 785], 95.00th=[ 785], | 99.00th=[ 785], 99.50th=[ 785], 99.90th=[ 785], 99.95th=[ 785], | 99.99th=[ 785] bw ( KiB/s): min= 8126, max= 8175, per=100.00%, avg=8150.50, stdev=34.65, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=66.67%, 1000=33.33% cpu : usr=0.00%, sys=4.28%, ctx=48, 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=145125: Mon Jul 13 15:35:30 2026 read: IOPS=0, BW=1311KiB/s (1342kB/s)(4096KiB/3125msec) clat (nsec): min=905760k, max=905760k, avg=905760301.00, stdev= 0.00 lat (nsec): min=905763k, max=905763k, avg=905763187.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 902], 5.00th=[ 902], 10.00th=[ 902], 20.00th=[ 902], | 30.00th=[ 902], 40.00th=[ 902], 50.00th=[ 902], 60.00th=[ 902], | 70.00th=[ 902], 80.00th=[ 902], 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= 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 write: IOPS=0, BW=2621KiB/s (2684kB/s)(8192KiB/3125msec); 0 zone resets clat (msec): min=959, max=1122, avg=1040.99, stdev=115.50 lat (msec): min=959, max=1123, avg=1041.41, stdev=115.43 clat percentiles (msec): | 1.00th=[ 961], 5.00th=[ 961], 10.00th=[ 961], 20.00th=[ 961], | 30.00th=[ 961], 40.00th=[ 961], 50.00th=[ 961], 60.00th=[ 1116], | 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= 8031, max= 8031, per=78.11%, avg=8031.00, 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=0.03%, sys=2.98%, ctx=41, 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=145126: Mon Jul 13 15:35:30 2026 write: IOPS=0, BW=3856KiB/s (3948kB/s)(12.0MiB/3187msec); 0 zone resets clat (msec): min=363, max=1392, avg=997.37, stdev=554.40 lat (msec): min=363, max=1393, avg=997.67, stdev=554.40 clat percentiles (msec): | 1.00th=[ 363], 5.00th=[ 363], 10.00th=[ 363], 20.00th=[ 363], | 30.00th=[ 363], 40.00th=[ 1234], 50.00th=[ 1234], 60.00th=[ 1234], | 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= 8031, max= 8062, per=78.27%, avg=8046.50, stdev=21.92, 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=2.61%, ctx=42, 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=145128: Mon Jul 13 15:35:30 2026 write: IOPS=1, BW=6420KiB/s (6574kB/s)(12.0MiB/1914msec); 0 zone resets clat (msec): min=378, max=1037, avg=603.92, stdev=375.48 lat (msec): min=379, max=1041, avg=605.48, stdev=377.63 clat percentiles (msec): | 1.00th=[ 380], 5.00th=[ 380], 10.00th=[ 380], 20.00th=[ 380], | 30.00th=[ 380], 40.00th=[ 397], 50.00th=[ 397], 60.00th=[ 397], | 70.00th=[ 1036], 80.00th=[ 1036], 90.00th=[ 1036], 95.00th=[ 1036], | 99.00th=[ 1036], 99.50th=[ 1036], 99.90th=[ 1036], 99.95th=[ 1036], | 99.99th=[ 1036] bw ( KiB/s): min= 6481, max= 8126, per=71.04%, avg=7303.50, stdev=1163.19, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=66.67%, 2000=33.33% cpu : usr=0.16%, sys=6.48%, ctx=62, 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=5243KiB/s (5369kB/s), 1311KiB/s-5313KiB/s (1342kB/s-5440kB/s), io=16.0MiB (16.8MB), run=2313-3125msec WRITE: bw=10.0MiB/s (10.5MB/s), 2621KiB/s-6420KiB/s (2684kB/s-6574kB/s), io=32.0MiB (33.6MB), run=1914-3187msec