== sanity test 398b: DIO and buffer IO race ============== 21:34:14 (1787103254) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 2.78209 s, 18.1 MB/s mix direct rw 4096 by fio with 4 jobs... mix buffer rw 4096 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=149947: Tue Aug 18 21:35:12 2026 read: IOPS=31, BW=125KiB/s (128kB/s)(5992KiB/47829msec) clat (usec): min=36, max=692018, avg=16627.99, stdev=19717.01 lat (usec): min=36, max=692019, avg=16630.34, stdev=19718.02 clat percentiles (usec): | 1.00th=[ 76], 5.00th=[ 149], 10.00th=[ 7635], 20.00th=[ 9503], | 30.00th=[ 10945], 40.00th=[ 12780], 50.00th=[ 14353], 60.00th=[ 16712], | 70.00th=[ 19268], 80.00th=[ 22938], 90.00th=[ 27657], 95.00th=[ 32375], | 99.00th=[ 46400], 99.50th=[ 52167], 99.90th=[ 76022], 99.95th=[692061], | 99.99th=[692061] bw ( KiB/s): min= 6, max= 183, per=25.52%, avg=125.31, stdev=29.17, samples=95 iops : min= 1, max= 45, avg=30.95, stdev= 7.33, samples=95 write: IOPS=32, BW=132KiB/s (135kB/s)(6296KiB/47829msec); 0 zone resets clat (usec): min=773, max=125394, avg=14451.38, stdev=12736.51 lat (usec): min=774, max=125394, avg=14453.04, stdev=12736.09 clat percentiles (usec): | 1.00th=[ 1106], 5.00th=[ 1926], 10.00th=[ 2540], 20.00th=[ 3294], | 30.00th=[ 4817], 40.00th=[ 8717], 50.00th=[ 11863], 60.00th=[ 15139], | 70.00th=[ 18744], 80.00th=[ 22938], 90.00th=[ 29754], 95.00th=[ 36439], | 99.00th=[ 54789], 99.50th=[ 72877], 99.90th=[116917], 99.95th=[125305], | 99.99th=[125305] bw ( KiB/s): min= 64, max= 216, per=25.88%, avg=133.02, stdev=30.68, samples=94 iops : min= 16, max= 54, avg=32.88, stdev= 7.75, samples=94 lat (usec) : 50=0.23%, 100=1.17%, 250=1.24%, 500=0.10%, 1000=0.29% lat (msec) : 2=2.51%, 4=10.55%, 10=17.42%, 20=39.10%, 50=26.40% lat (msec) : 100=0.88%, 250=0.10%, 750=0.03% cpu : usr=0.15%, sys=21.98%, ctx=8183, 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=149948: Tue Aug 18 21:35:12 2026 read: IOPS=30, BW=123KiB/s (126kB/s)(5940KiB/48276msec) clat (usec): min=30, max=142068, avg=16322.85, stdev=9950.66 lat (usec): min=31, max=142069, avg=16323.69, stdev=9950.66 clat percentiles (usec): | 1.00th=[ 71], 5.00th=[ 137], 10.00th=[ 7701], 20.00th=[ 9503], | 30.00th=[ 10945], 40.00th=[ 12649], 50.00th=[ 14615], 60.00th=[ 16712], | 70.00th=[ 19530], 80.00th=[ 22414], 90.00th=[ 27132], 95.00th=[ 32900], | 99.00th=[ 50070], 99.50th=[ 55837], 99.90th=[ 84411], 99.95th=[141558], | 99.99th=[141558] bw ( KiB/s): min= 6, max= 199, per=25.07%, avg=123.09, stdev=33.91, samples=96 iops : min= 1, max= 49, avg=30.40, stdev= 8.52, samples=96 write: IOPS=32, BW=131KiB/s (135kB/s)(6348KiB/48276msec); 0 zone resets clat (usec): min=784, max=687330, avg=15041.41, stdev=20972.99 lat (usec): min=785, max=687332, avg=15042.41, stdev=20973.00 clat percentiles (usec): | 1.00th=[ 1156], 5.00th=[ 1991], 10.00th=[ 2606], 20.00th=[ 3425], | 30.00th=[ 5014], 40.00th=[ 8586], 50.00th=[ 11731], 60.00th=[ 15008], | 70.00th=[ 18744], 80.00th=[ 24249], 90.00th=[ 31851], 95.00th=[ 37487], | 99.00th=[ 53740], 99.50th=[ 64750], 99.90th=[ 94897], 99.95th=[683672], | 99.99th=[683672] bw ( KiB/s): min= 71, max= 304, per=25.87%, avg=132.99, stdev=36.77, samples=95 iops : min= 17, max= 76, avg=32.87, stdev= 9.23, samples=95 lat (usec) : 50=0.10%, 100=1.53%, 250=1.01%, 750=0.03%, 1000=0.26% lat (msec) : 2=2.34%, 4=10.32%, 10=18.46%, 20=38.38%, 50=26.37% lat (msec) : 100=1.14%, 250=0.03%, 750=0.03% cpu : usr=0.14%, sys=21.88%, ctx=8122, 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=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=149949: Tue Aug 18 21:35:12 2026 read: IOPS=30, BW=123KiB/s (126kB/s)(6028KiB/48877msec) clat (usec): min=33, max=78732, avg=15907.23, stdev=9268.79 lat (usec): min=34, max=78733, avg=15909.24, stdev=9268.15 clat percentiles (usec): | 1.00th=[ 71], 5.00th=[ 127], 10.00th=[ 7308], 20.00th=[ 9241], | 30.00th=[10683], 40.00th=[12387], 50.00th=[14222], 60.00th=[16581], | 70.00th=[19006], 80.00th=[22414], 90.00th=[27132], 95.00th=[31851], | 99.00th=[46924], 99.50th=[55837], 99.90th=[77071], 99.95th=[79168], | 99.99th=[79168] bw ( KiB/s): min= 63, max= 254, per=25.32%, avg=124.34, stdev=31.06, samples=96 iops : min= 15, max= 63, avg=30.71, stdev= 7.82, samples=96 write: IOPS=32, BW=128KiB/s (131kB/s)(6260KiB/48877msec); 0 zone resets clat (usec): min=744, max=720961, avg=15810.46, stdev=22461.30 lat (usec): min=744, max=720963, avg=15812.04, stdev=22461.10 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1844], 10.00th=[ 2474], 20.00th=[ 3294], | 30.00th=[ 5800], 40.00th=[ 9634], 50.00th=[ 12649], 60.00th=[ 15795], | 70.00th=[ 19792], 80.00th=[ 24511], 90.00th=[ 32375], 95.00th=[ 39060], | 99.00th=[ 57934], 99.50th=[ 73925], 99.90th=[130548], 99.95th=[717226], | 99.99th=[717226] bw ( KiB/s): min= 63, max= 278, per=25.09%, avg=128.94, stdev=34.90, samples=96 iops : min= 15, max= 69, avg=31.85, stdev= 8.77, samples=96 lat (usec) : 50=0.20%, 100=1.50%, 250=1.01%, 750=0.03%, 1000=0.36% lat (msec) : 2=2.80%, 4=9.08%, 10=18.46%, 20=38.54%, 50=26.53% lat (msec) : 100=1.30%, 250=0.16%, 750=0.03% cpu : usr=0.13%, sys=21.90%, ctx=8089, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=149950: Tue Aug 18 21:35:12 2026 read: IOPS=31, BW=125KiB/s (128kB/s)(6052KiB/48487msec) clat (usec): min=34, max=112749, avg=16348.50, stdev=9900.14 lat (usec): min=35, max=112750, avg=16349.54, stdev=9900.13 clat percentiles (usec): | 1.00th=[ 65], 5.00th=[ 117], 10.00th=[ 7177], 20.00th=[ 9241], | 30.00th=[ 10814], 40.00th=[ 12780], 50.00th=[ 14746], 60.00th=[ 17171], | 70.00th=[ 20055], 80.00th=[ 22938], 90.00th=[ 27395], 95.00th=[ 32375], | 99.00th=[ 47449], 99.50th=[ 56886], 99.90th=[ 84411], 99.95th=[112722], | 99.99th=[112722] bw ( KiB/s): min= 48, max= 208, per=25.54%, avg=125.40, stdev=28.92, samples=95 iops : min= 12, max= 52, avg=30.98, stdev= 7.29, samples=95 write: IOPS=32, BW=129KiB/s (132kB/s)(6236KiB/48487msec); 0 zone resets clat (usec): min=759, max=715854, avg=15129.48, stdev=21804.91 lat (usec): min=760, max=715856, avg=15130.56, stdev=21804.92 clat percentiles (usec): | 1.00th=[ 1090], 5.00th=[ 1958], 10.00th=[ 2540], 20.00th=[ 3425], | 30.00th=[ 5276], 40.00th=[ 9110], 50.00th=[ 12125], 60.00th=[ 15008], | 70.00th=[ 19006], 80.00th=[ 23987], 90.00th=[ 31327], 95.00th=[ 37487], | 99.00th=[ 52691], 99.50th=[ 62653], 99.90th=[177210], 99.95th=[717226], | 99.99th=[717226] bw ( KiB/s): min= 56, max= 192, per=25.20%, avg=129.55, stdev=28.24, samples=95 iops : min= 14, max= 48, avg=32.01, stdev= 7.12, samples=95 lat (usec) : 50=0.29%, 100=1.43%, 250=1.40%, 500=0.10%, 750=0.03% lat (usec) : 1000=0.33% lat (msec) : 2=2.31%, 4=9.73%, 10=17.77%, 20=37.34%, 50=28.16% lat (msec) : 100=1.01%, 250=0.07%, 750=0.03% cpu : usr=0.14%, sys=21.75%, ctx=8143, 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=491KiB/s (503kB/s), 123KiB/s-125KiB/s (126kB/s-128kB/s), io=23.4MiB (24.6MB), run=47829-48877msec WRITE: bw=514KiB/s (527kB/s), 128KiB/s-132KiB/s (131kB/s-135kB/s), io=24.6MiB (25.7MB), run=47829-48877msec fio: pid=149946, err=5/file:backend.c:481, func=full resid, error=Input/output error fio: pid=149944, err=5/file:backend.c:481, func=full resid, error=Input/output error rand-rw: (groupid=0, jobs=1): err= 0: pid=149942: Tue Aug 18 21:35:39 2026 read: IOPS=19, BW=78.8KiB/s (80.7kB/s)(5992KiB/76012msec) clat (msec): min=2, max=696, avg=13.60, stdev=21.61 lat (msec): min=2, max=696, avg=13.61, stdev=21.61 clat percentiles (msec): | 1.00th=[ 4], 5.00th=[ 4], 10.00th=[ 5], 20.00th=[ 5], | 30.00th=[ 6], 40.00th=[ 7], 50.00th=[ 9], 60.00th=[ 11], | 70.00th=[ 14], 80.00th=[ 20], 90.00th=[ 30], 95.00th=[ 40], | 99.00th=[ 58], 99.50th=[ 74], 99.90th=[ 118], 99.95th=[ 701], | 99.99th=[ 701] bw ( KiB/s): min= 15, max= 200, per=29.35%, avg=79.24, stdev=48.28, samples=150 iops : min= 3, max= 50, avg=19.53, stdev=12.18, samples=150 write: IOPS=20, BW=82.8KiB/s (84.8kB/s)(6296KiB/76012msec); 0 zone resets clat (msec): min=12, max=209, avg=35.22, stdev=19.61 lat (msec): min=12, max=209, avg=35.22, stdev=19.61 clat percentiles (msec): | 1.00th=[ 15], 5.00th=[ 17], 10.00th=[ 18], 20.00th=[ 21], | 30.00th=[ 23], 40.00th=[ 26], 50.00th=[ 30], 60.00th=[ 34], | 70.00th=[ 41], 80.00th=[ 50], 90.00th=[ 61], 95.00th=[ 71], | 99.00th=[ 99], 99.50th=[ 127], 99.90th=[ 207], 99.95th=[ 209], | 99.99th=[ 209] bw ( KiB/s): min= 16, max= 168, per=29.27%, avg=83.14, stdev=41.50, samples=150 iops : min= 4, max= 42, avg=20.50, stdev=10.49, samples=150 lat (msec) : 4=2.96%, 10=25.39%, 20=21.09%, 50=39.91%, 100=10.06% lat (msec) : 250=0.55%, 750=0.03% cpu : usr=0.09%, sys=7.35%, ctx=5741, 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=149943: Tue Aug 18 21:35:39 2026 read: IOPS=19, BW=77.8KiB/s (79.7kB/s)(5940KiB/76358msec) clat (msec): min=3, max=682, avg=13.33, stdev=21.17 lat (msec): min=3, max=682, avg=13.33, stdev=21.17 clat percentiles (msec): | 1.00th=[ 4], 5.00th=[ 4], 10.00th=[ 5], 20.00th=[ 5], | 30.00th=[ 6], 40.00th=[ 7], 50.00th=[ 9], 60.00th=[ 11], | 70.00th=[ 14], 80.00th=[ 20], 90.00th=[ 29], 95.00th=[ 39], | 99.00th=[ 59], 99.50th=[ 68], 99.90th=[ 124], 99.95th=[ 684], | 99.99th=[ 684] bw ( KiB/s): min= 8, max= 248, per=28.94%, avg=78.14, stdev=47.32, samples=151 iops : min= 2, max= 62, avg=19.25, stdev=11.94, samples=151 write: IOPS=20, BW=83.1KiB/s (85.1kB/s)(6348KiB/76358msec); 0 zone resets clat (msec): min=12, max=173, avg=35.52, stdev=19.29 lat (msec): min=12, max=173, avg=35.52, stdev=19.29 clat percentiles (msec): | 1.00th=[ 14], 5.00th=[ 17], 10.00th=[ 18], 20.00th=[ 21], | 30.00th=[ 23], 40.00th=[ 26], 50.00th=[ 30], 60.00th=[ 35], | 70.00th=[ 42], 80.00th=[ 50], 90.00th=[ 61], 95.00th=[ 72], | 99.00th=[ 103], 99.50th=[ 127], 99.90th=[ 150], 99.95th=[ 174], | 99.99th=[ 174] bw ( KiB/s): min= 32, max= 184, per=29.40%, avg=83.48, stdev=41.13, samples=151 iops : min= 8, max= 46, avg=20.59, stdev=10.40, samples=151 lat (msec) : 4=3.97%, 10=24.48%, 20=20.61%, 50=40.46%, 100=9.77% lat (msec) : 250=0.68%, 750=0.03% cpu : usr=0.09%, sys=7.21%, ctx=5795, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 5 (file:backend.c:481, func=full resid, error=Input/output error): pid=149944: Tue Aug 18 21:35:39 2026 read: IOPS=16, BW=67.4KiB/s (69.0kB/s)(4332KiB/64256msec) clat (msec): min=3, max=135, avg=16.26, stdev=14.28 lat (msec): min=3, max=135, avg=16.26, stdev=14.28 clat percentiles (msec): | 1.00th=[ 4], 5.00th=[ 5], 10.00th=[ 5], 20.00th=[ 6], | 30.00th=[ 8], 40.00th=[ 10], 50.00th=[ 12], 60.00th=[ 15], | 70.00th=[ 19], 80.00th=[ 24], 90.00th=[ 34], 95.00th=[ 43], | 99.00th=[ 75], 99.50th=[ 92], 99.90th=[ 108], 99.95th=[ 136], | 99.99th=[ 136] bw ( KiB/s): min= 15, max= 192, per=24.93%, avg=67.32, stdev=37.00, samples=126 iops : min= 3, max= 48, avg=16.51, stdev= 9.34, samples=126 write: IOPS=17, BW=71.7KiB/s (73.4kB/s)(4604KiB/64256msec); 0 zone resets clat (msec): min=14, max=702, avg=40.36, stdev=27.00 lat (msec): min=14, max=702, avg=40.37, stdev=27.00 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 20], 10.00th=[ 21], 20.00th=[ 24], | 30.00th=[ 28], 40.00th=[ 32], 50.00th=[ 36], 60.00th=[ 41], | 70.00th=[ 47], 80.00th=[ 54], 90.00th=[ 65], 95.00th=[ 75], | 99.00th=[ 100], 99.50th=[ 116], 99.90th=[ 209], 99.95th=[ 701], | 99.99th=[ 701] bw ( KiB/s): min= 23, max= 160, per=25.25%, avg=71.70, stdev=33.69, samples=126 iops : min= 5, max= 40, avg=17.60, stdev= 8.52, samples=126 lat (msec) : 4=1.21%, 10=19.11%, 20=20.04%, 50=45.64%, 100=13.33% lat (msec) : 250=0.58%, 750=0.04% cpu : usr=0.08%, sys=7.18%, ctx=3932, majf=0, minf=21 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=1084,1151,0,0 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= 5 (file:backend.c:481, func=full resid, error=Input/output error): pid=149946: Tue Aug 18 21:35:39 2026 read: IOPS=17, BW=68.8KiB/s (70.4kB/s)(4372KiB/63561msec) clat (msec): min=2, max=113, avg=15.54, stdev=13.68 lat (msec): min=2, max=113, avg=15.54, stdev=13.68 clat percentiles (msec): | 1.00th=[ 4], 5.00th=[ 5], 10.00th=[ 5], 20.00th=[ 6], | 30.00th=[ 7], 40.00th=[ 9], 50.00th=[ 11], 60.00th=[ 14], | 70.00th=[ 18], 80.00th=[ 24], 90.00th=[ 33], 95.00th=[ 43], | 99.00th=[ 69], 99.50th=[ 77], 99.90th=[ 109], 99.95th=[ 114], | 99.99th=[ 114] bw ( KiB/s): min= 7, max= 192, per=25.42%, avg=68.63, stdev=39.82, samples=125 iops : min= 1, max= 48, avg=16.84, stdev=10.05, samples=125 write: IOPS=17, BW=70.7KiB/s (72.4kB/s)(4496KiB/63561msec); 0 zone resets clat (msec): min=14, max=700, avg=41.27, stdev=27.78 lat (msec): min=14, max=700, avg=41.27, stdev=27.78 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 19], 10.00th=[ 21], 20.00th=[ 25], | 30.00th=[ 28], 40.00th=[ 32], 50.00th=[ 37], 60.00th=[ 43], | 70.00th=[ 48], 80.00th=[ 56], 90.00th=[ 66], 95.00th=[ 75], | 99.00th=[ 108], 99.50th=[ 138], 99.90th=[ 186], 99.95th=[ 701], | 99.99th=[ 701] bw ( KiB/s): min= 24, max= 167, per=25.00%, avg=70.99, stdev=33.27, samples=125 iops : min= 6, max= 41, avg=17.43, stdev= 8.40, samples=125 lat (msec) : 4=1.67%, 10=21.51%, 20=18.80%, 50=43.06%, 100=14.25% lat (msec) : 250=0.63%, 750=0.05% cpu : usr=0.09%, sys=7.11%, ctx=3882, majf=0, minf=24 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=1094,1124,0,0 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=270KiB/s (277kB/s), 67.4KiB/s-78.8KiB/s (69.0kB/s-80.7kB/s), io=20.2MiB (21.1MB), run=63561-76358msec WRITE: bw=285KiB/s (292kB/s), 70.7KiB/s-83.1KiB/s (72.4kB/s-85.1kB/s), io=21.2MiB (22.3MB), run=63561-76358msec 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=149979: Tue Aug 18 21:35:58 2026 read: IOPS=28, BW=461KiB/s (472kB/s)(5920KiB/12838msec) clat (usec): min=28, max=67289, avg=16820.75, stdev=10246.77 lat (usec): min=28, max=67290, avg=16834.60, stdev=10260.96 clat percentiles (usec): | 1.00th=[ 44], 5.00th=[ 92], 10.00th=[ 125], 20.00th=[ 9896], | 30.00th=[12125], 40.00th=[14222], 50.00th=[16319], 60.00th=[18744], | 70.00th=[20841], 80.00th=[24249], 90.00th=[28443], 95.00th=[32900], | 99.00th=[49546], 99.50th=[51643], 99.90th=[67634], 99.95th=[67634], | 99.99th=[67634] bw ( KiB/s): min= 288, max= 670, per=24.95%, avg=455.36, stdev=104.14, samples=25 iops : min= 18, max= 41, avg=27.92, stdev= 6.52, samples=25 write: IOPS=31, BW=496KiB/s (508kB/s)(6368KiB/12838msec); 0 zone resets clat (usec): min=1429, max=77699, avg=16573.88, stdev=13130.17 lat (usec): min=1430, max=77700, avg=16575.83, stdev=13129.85 clat percentiles (usec): | 1.00th=[ 1958], 5.00th=[ 2606], 10.00th=[ 3589], 20.00th=[ 4883], | 30.00th=[ 7308], 40.00th=[10159], 50.00th=[13566], 60.00th=[16909], | 70.00th=[20841], 80.00th=[26608], 90.00th=[34341], 95.00th=[39584], | 99.00th=[66847], 99.50th=[73925], 99.90th=[78119], 99.95th=[78119], | 99.99th=[78119] bw ( KiB/s): min= 252, max= 670, per=25.84%, avg=496.16, stdev=102.09, samples=25 iops : min= 15, max= 41, avg=30.48, stdev= 6.35, samples=25 lat (usec) : 50=0.65%, 100=2.47%, 250=2.73%, 500=0.13%, 750=0.13% lat (usec) : 1000=0.26% lat (msec) : 2=0.52%, 4=5.86%, 10=17.06%, 20=37.37%, 50=31.12% lat (msec) : 100=1.69% cpu : usr=0.10%, sys=24.20%, ctx=2331, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=149980: Tue Aug 18 21:35:58 2026 read: IOPS=27, BW=438KiB/s (448kB/s)(5744KiB/13123msec) clat (usec): min=40, max=88925, avg=17587.64, stdev=11662.48 lat (usec): min=41, max=88926, avg=17588.39, stdev=11662.49 clat percentiles (usec): | 1.00th=[ 48], 5.00th=[ 105], 10.00th=[ 200], 20.00th=[10421], | 30.00th=[12387], 40.00th=[14353], 50.00th=[16057], 60.00th=[18482], | 70.00th=[20579], 80.00th=[23462], 90.00th=[29492], 95.00th=[38536], | 99.00th=[57934], 99.50th=[83362], 99.90th=[88605], 99.95th=[88605], | 99.99th=[88605] bw ( KiB/s): min= 160, max= 640, per=23.82%, avg=434.77, stdev=109.47, samples=26 iops : min= 10, max= 40, avg=26.65, stdev= 6.90, samples=26 write: IOPS=31, BW=499KiB/s (511kB/s)(6544KiB/13123msec); 0 zone resets clat (usec): min=1285, max=99379, avg=16616.50, stdev=14114.01 lat (usec): min=1286, max=99380, avg=16617.93, stdev=14113.98 clat percentiles (usec): | 1.00th=[ 1893], 5.00th=[ 2638], 10.00th=[ 3884], 20.00th=[ 5145], | 30.00th=[ 6718], 40.00th=[ 9372], 50.00th=[11469], 60.00th=[15664], | 70.00th=[20841], 80.00th=[27132], 90.00th=[35914], 95.00th=[46400], | 99.00th=[57934], 99.50th=[66323], 99.90th=[99091], 99.95th=[99091], | 99.99th=[99091] bw ( KiB/s): min= 256, max= 800, per=25.92%, avg=497.73, stdev=121.89, samples=26 iops : min= 16, max= 50, avg=30.62, stdev= 7.58, samples=26 lat (usec) : 50=0.65%, 100=1.30%, 250=2.73%, 500=0.39% lat (msec) : 2=1.17%, 4=4.82%, 10=19.53%, 20=37.76%, 50=29.17% lat (msec) : 100=2.47% cpu : usr=0.16%, sys=23.70%, ctx=2287, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=149981: Tue Aug 18 21:35:58 2026 read: IOPS=30, BW=484KiB/s (496kB/s)(6256KiB/12928msec) clat (usec): min=45, max=112183, avg=19003.15, stdev=13764.20 lat (usec): min=46, max=112184, avg=19003.94, stdev=13764.23 clat percentiles (usec): | 1.00th=[ 54], 5.00th=[ 109], 10.00th=[ 7111], 20.00th=[ 10552], | 30.00th=[ 13042], 40.00th=[ 14877], 50.00th=[ 16909], 60.00th=[ 19006], | 70.00th=[ 21627], 80.00th=[ 25035], 90.00th=[ 32900], 95.00th=[ 39584], | 99.00th=[ 84411], 99.50th=[103285], 99.90th=[111674], 99.95th=[111674], | 99.99th=[111674] bw ( KiB/s): min= 382, max= 766, per=26.63%, avg=486.08, stdev=94.71, samples=25 iops : min= 23, max= 47, avg=29.84, stdev= 5.94, samples=25 write: IOPS=29, BW=467KiB/s (478kB/s)(6032KiB/12928msec); 0 zone resets clat (usec): min=1053, max=75301, avg=14542.24, stdev=11817.67 lat (usec): min=1054, max=75302, avg=14554.09, stdev=11820.89 clat percentiles (usec): | 1.00th=[ 1532], 5.00th=[ 3163], 10.00th=[ 3818], 20.00th=[ 4621], | 30.00th=[ 6063], 40.00th=[ 8979], 50.00th=[12125], 60.00th=[14746], | 70.00th=[17695], 80.00th=[22676], 90.00th=[29230], 95.00th=[35390], | 99.00th=[66323], 99.50th=[72877], 99.90th=[74974], 99.95th=[74974], | 99.99th=[74974] bw ( KiB/s): min= 160, max= 736, per=24.09%, avg=462.56, stdev=150.90, samples=25 iops : min= 10, max= 46, avg=28.36, stdev= 9.53, samples=25 lat (usec) : 50=0.26%, 100=1.95%, 250=1.95%, 500=0.26% lat (msec) : 2=1.04%, 4=4.82%, 10=20.18%, 20=39.19%, 50=27.86% lat (msec) : 100=2.21%, 250=0.26% cpu : usr=0.15%, sys=24.30%, ctx=2459, 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=149982: Tue Aug 18 21:35:58 2026 read: IOPS=30, BW=483KiB/s (495kB/s)(6032KiB/12488msec) clat (usec): min=33, max=94945, avg=16695.47, stdev=12377.41 lat (usec): min=34, max=94945, avg=16696.27, stdev=12377.36 clat percentiles (usec): | 1.00th=[ 47], 5.00th=[ 75], 10.00th=[ 119], 20.00th=[ 9372], | 30.00th=[12125], 40.00th=[13960], 50.00th=[15926], 60.00th=[18220], | 70.00th=[20055], 80.00th=[23200], 90.00th=[27919], 95.00th=[35914], | 99.00th=[61080], 99.50th=[89654], 99.90th=[94897], 99.95th=[94897], | 99.99th=[94897] bw ( KiB/s): min= 192, max= 734, per=26.21%, avg=478.38, stdev=120.66, samples=24 iops : min= 12, max= 45, avg=29.38, stdev= 7.49, samples=24 write: IOPS=31, BW=501KiB/s (513kB/s)(6256KiB/12488msec); 0 zone resets clat (usec): min=1083, max=134754, avg=15807.71, stdev=13634.69 lat (usec): min=1084, max=134756, avg=15809.86, stdev=13635.25 clat percentiles (usec): | 1.00th=[ 1582], 5.00th=[ 2966], 10.00th=[ 3425], 20.00th=[ 4555], | 30.00th=[ 5800], 40.00th=[ 8979], 50.00th=[ 12256], 60.00th=[ 15926], | 70.00th=[ 20055], 80.00th=[ 26346], 90.00th=[ 33817], 95.00th=[ 40109], | 99.00th=[ 56361], 99.50th=[ 62653], 99.90th=[135267], 99.95th=[135267], | 99.99th=[135267] bw ( KiB/s): min= 320, max= 702, per=26.23%, avg=503.58, stdev=106.58, samples=24 iops : min= 20, max= 43, avg=30.96, stdev= 6.58, samples=24 lat (usec) : 50=0.52%, 100=2.99%, 250=3.78%, 750=0.26%, 1000=0.39% lat (msec) : 2=1.04%, 4=6.38%, 10=18.10%, 20=36.46%, 50=28.13% lat (msec) : 100=1.82%, 250=0.13% cpu : usr=0.10%, sys=24.76%, ctx=2271, 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=1825KiB/s (1869kB/s), 438KiB/s-484KiB/s (448kB/s-496kB/s), io=23.4MiB (24.5MB), run=12488-13123msec WRITE: bw=1920KiB/s (1966kB/s), 467KiB/s-501KiB/s (478kB/s-513kB/s), io=24.6MiB (25.8MB), run=12488-13123msec fio: pid=149976, err=5/file:backend.c:481, func=full resid, error=Input/output error fio: pid=149975, err=5/file:backend.c:481, func=full resid, error=Input/output error rand-rw: (groupid=0, jobs=1): err= 0: pid=149974: Tue Aug 18 21:36:07 2026 read: IOPS=16, BW=262KiB/s (269kB/s)(5920KiB/22572msec) clat (usec): min=3757, max=90778, avg=15665.65, stdev=12253.51 lat (usec): min=3758, max=90779, avg=15666.59, stdev=12253.46 clat percentiles (usec): | 1.00th=[ 3851], 5.00th=[ 4686], 10.00th=[ 5276], 20.00th=[ 7177], | 30.00th=[ 9110], 40.00th=[10683], 50.00th=[11863], 60.00th=[13173], | 70.00th=[15664], 80.00th=[20841], 90.00th=[33817], 95.00th=[42206], | 99.00th=[57934], 99.50th=[67634], 99.90th=[90702], 99.95th=[90702], | 99.99th=[90702] bw ( KiB/s): min= 63, max= 608, per=27.76%, avg=252.89, stdev=129.22, samples=44 iops : min= 3, max= 38, avg=15.34, stdev= 8.16, samples=44 write: IOPS=17, BW=282KiB/s (289kB/s)(6368KiB/22572msec); 0 zone resets clat (msec): min=13, max=172, avg=42.05, stdev=22.05 lat (msec): min=13, max=172, avg=42.05, stdev=22.05 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 20], 10.00th=[ 22], 20.00th=[ 26], | 30.00th=[ 29], 40.00th=[ 32], 50.00th=[ 37], 60.00th=[ 42], | 70.00th=[ 47], 80.00th=[ 55], 90.00th=[ 69], 95.00th=[ 90], | 99.00th=[ 114], 99.50th=[ 174], 99.90th=[ 174], 99.95th=[ 174], | 99.99th=[ 174] bw ( KiB/s): min= 64, max= 544, per=29.09%, avg=276.07, stdev=109.07, samples=44 iops : min= 4, max= 34, avg=16.80, stdev= 6.87, samples=44 lat (msec) : 4=0.78%, 10=16.28%, 20=24.09%, 50=44.01%, 100=13.54% lat (msec) : 250=1.30% cpu : usr=0.08%, sys=7.05%, ctx=1615, 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= 5 (file:backend.c:481, func=full resid, error=Input/output error): pid=149975: Tue Aug 18 21:36:07 2026 read: IOPS=14, BW=229KiB/s (234kB/s)(4224KiB/18485msec) clat (msec): min=4, max=170, avg=18.17, stdev=16.14 lat (msec): min=4, max=170, avg=18.17, stdev=16.14 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 6], 10.00th=[ 7], 20.00th=[ 9], | 30.00th=[ 11], 40.00th=[ 12], 50.00th=[ 14], 60.00th=[ 16], | 70.00th=[ 20], 80.00th=[ 24], 90.00th=[ 35], 95.00th=[ 45], | 99.00th=[ 78], 99.50th=[ 80], 99.90th=[ 171], 99.95th=[ 171], | 99.99th=[ 171] bw ( KiB/s): min= 63, max= 574, per=24.21%, avg=220.53, stdev=110.55, samples=36 iops : min= 3, max= 35, avg=13.28, stdev= 6.91, samples=36 write: IOPS=15, BW=247KiB/s (253kB/s)(4560KiB/18485msec); 0 zone resets clat (msec): min=18, max=135, avg=47.87, stdev=20.02 lat (msec): min=18, max=135, avg=47.87, stdev=20.02 clat percentiles (msec): | 1.00th=[ 22], 5.00th=[ 25], 10.00th=[ 28], 20.00th=[ 32], | 30.00th=[ 37], 40.00th=[ 40], 50.00th=[ 44], 60.00th=[ 49], | 70.00th=[ 54], 80.00th=[ 60], 90.00th=[ 72], 95.00th=[ 89], | 99.00th=[ 128], 99.50th=[ 136], 99.90th=[ 136], 99.95th=[ 136], | 99.99th=[ 136] bw ( KiB/s): min= 158, max= 384, per=25.74%, avg=244.31, stdev=68.84, samples=36 iops : min= 9, max= 24, avg=14.78, stdev= 4.32, samples=36 lat (msec) : 10=14.18%, 20=20.73%, 50=44.00%, 100=19.27%, 250=1.64% cpu : usr=0.09%, sys=7.18%, ctx=1143, majf=0, minf=18 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=265,285,0,0 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= 5 (file:backend.c:481, func=full resid, error=Input/output error): pid=149976: Tue Aug 18 21:36:07 2026 read: IOPS=15, BW=244KiB/s (249kB/s)(4400KiB/18064msec) clat (usec): min=4804, max=84594, avg=19562.12, stdev=15605.33 lat (usec): min=4806, max=84595, avg=19563.22, stdev=15605.35 clat percentiles (usec): | 1.00th=[ 5145], 5.00th=[ 6390], 10.00th=[ 7373], 20.00th=[ 8979], | 30.00th=[10421], 40.00th=[11863], 50.00th=[13435], 60.00th=[15008], | 70.00th=[20055], 80.00th=[28705], 90.00th=[41681], 95.00th=[54789], | 99.00th=[72877], 99.50th=[73925], 99.90th=[84411], 99.95th=[84411], | 99.99th=[84411] bw ( KiB/s): min= 32, max= 512, per=26.19%, avg=238.60, stdev=114.21, samples=35 iops : min= 2, max= 32, avg=14.43, stdev= 7.11, samples=35 write: IOPS=14, BW=235KiB/s (240kB/s)(4240KiB/18064msec); 0 zone resets clat (msec): min=20, max=170, avg=47.68, stdev=22.26 lat (msec): min=20, max=170, avg=47.69, stdev=22.26 clat percentiles (msec): | 1.00th=[ 22], 5.00th=[ 25], 10.00th=[ 29], 20.00th=[ 31], | 30.00th=[ 34], 40.00th=[ 39], 50.00th=[ 42], 60.00th=[ 46], | 70.00th=[ 54], 80.00th=[ 61], 90.00th=[ 77], 95.00th=[ 90], | 99.00th=[ 136], 99.50th=[ 138], 99.90th=[ 171], 99.95th=[ 171], | 99.99th=[ 171] bw ( KiB/s): min= 95, max= 415, per=24.48%, avg=232.31, stdev=83.55, samples=35 iops : min= 5, max= 25, avg=14.03, stdev= 5.21, samples=35 lat (msec) : 10=14.23%, 20=21.44%, 50=43.07%, 100=19.22%, 250=1.85% cpu : usr=0.07%, sys=7.36%, ctx=1105, majf=0, minf=19 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=276,265,0,0 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=149977: Tue Aug 18 21:36:07 2026 read: IOPS=16, BW=269KiB/s (276kB/s)(6032KiB/22388msec) clat (msec): min=3, max=175, avg=16.98, stdev=16.49 lat (msec): min=3, max=175, avg=16.98, stdev=16.49 clat percentiles (msec): | 1.00th=[ 4], 5.00th=[ 5], 10.00th=[ 6], 20.00th=[ 8], | 30.00th=[ 9], 40.00th=[ 10], 50.00th=[ 12], 60.00th=[ 14], | 70.00th=[ 17], 80.00th=[ 21], 90.00th=[ 40], 95.00th=[ 55], | 99.00th=[ 65], 99.50th=[ 88], 99.90th=[ 176], 99.95th=[ 176], | 99.99th=[ 176] bw ( KiB/s): min= 64, max= 704, per=29.18%, avg=265.86, stdev=128.50, samples=44 iops : min= 4, max= 44, avg=16.16, stdev= 8.07, samples=44 write: IOPS=17, BW=279KiB/s (286kB/s)(6256KiB/22388msec); 0 zone resets clat (msec): min=14, max=146, avg=40.83, stdev=18.59 lat (msec): min=14, max=146, avg=40.83, stdev=18.59 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 20], 10.00th=[ 23], 20.00th=[ 27], | 30.00th=[ 30], 40.00th=[ 33], 50.00th=[ 37], 60.00th=[ 42], | 70.00th=[ 47], 80.00th=[ 53], 90.00th=[ 64], 95.00th=[ 75], | 99.00th=[ 113], 99.50th=[ 120], 99.90th=[ 146], 99.95th=[ 146], | 99.99th=[ 146] bw ( KiB/s): min= 64, max= 544, per=29.08%, avg=276.00, stdev=113.34, samples=44 iops : min= 4, max= 34, avg=16.80, stdev= 7.14, samples=44 lat (msec) : 4=0.78%, 10=19.14%, 20=21.22%, 50=42.71%, 100=15.10% lat (msec) : 250=1.04% cpu : usr=0.08%, sys=6.97%, ctx=1556, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=912KiB/s (933kB/s), 229KiB/s-269KiB/s (234kB/s-276kB/s), io=20.1MiB (21.1MB), run=18064-22572msec WRITE: bw=949KiB/s (972kB/s), 235KiB/s-282KiB/s (240kB/s-289kB/s), io=20.9MiB (21.9MB), run=18064-22572msec 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=149991: Tue Aug 18 21:36:15 2026 read: IOPS=3, BW=3158KiB/s (3233kB/s)(7168KiB/2270msec) clat (msec): min=55, max=416, avg=141.52, stdev=124.96 lat (msec): min=55, max=416, avg=141.52, stdev=124.96 clat percentiles (msec): | 1.00th=[ 56], 5.00th=[ 56], 10.00th=[ 56], 20.00th=[ 65], | 30.00th=[ 95], 40.00th=[ 95], 50.00th=[ 100], 60.00th=[ 115], | 70.00th=[ 115], 80.00th=[ 146], 90.00th=[ 418], 95.00th=[ 418], | 99.00th=[ 418], 99.50th=[ 418], 99.90th=[ 418], 99.95th=[ 418], | 99.99th=[ 418] bw ( KiB/s): min= 2048, max= 5086, per=51.65%, avg=3719.00, stdev=1541.65, samples=3 iops : min= 2, max= 4, avg= 3.00, stdev= 1.00, samples=3 write: IOPS=2, BW=2256KiB/s (2310kB/s)(5120KiB/2270msec); 0 zone resets clat (msec): min=99, max=488, avg=246.96, stdev=153.26 lat (msec): min=99, max=488, avg=247.02, stdev=153.26 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 100], 10.00th=[ 100], 20.00th=[ 100], | 30.00th=[ 136], 40.00th=[ 136], 50.00th=[ 232], 60.00th=[ 232], | 70.00th=[ 279], 80.00th=[ 279], 90.00th=[ 489], 95.00th=[ 489], | 99.00th=[ 489], 99.50th=[ 489], 99.90th=[ 489], 99.95th=[ 489], | 99.99th=[ 489] bw ( KiB/s): min= 1695, max= 4096, per=25.90%, avg=2611.33, stdev=1297.48, samples=3 iops : min= 1, max= 4, avg= 2.00, stdev= 1.73, samples=3 lat (msec) : 100=41.67%, 250=33.33%, 500=25.00% cpu : usr=0.00%, sys=13.57%, ctx=236, 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=149992: Tue Aug 18 21:36:15 2026 read: IOPS=0, BW=760KiB/s (778kB/s)(2048KiB/2696msec) clat (msec): min=36, max=405, avg=221.21, stdev=261.15 lat (msec): min=36, max=405, avg=221.21, stdev=261.15 clat percentiles (msec): | 1.00th=[ 37], 5.00th=[ 37], 10.00th=[ 37], 20.00th=[ 37], | 30.00th=[ 37], 40.00th=[ 37], 50.00th=[ 37], 60.00th=[ 405], | 70.00th=[ 405], 80.00th=[ 405], 90.00th=[ 405], 95.00th=[ 405], | 99.00th=[ 405], 99.50th=[ 405], 99.90th=[ 405], 99.95th=[ 405], | 99.99th=[ 405] bw ( KiB/s): min= 1698, max= 2048, per=26.01%, avg=1873.00, stdev=247.49, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 write: IOPS=3, BW=3798KiB/s (3889kB/s)(10.0MiB/2696msec); 0 zone resets clat (msec): min=100, max=496, avg=224.03, stdev=116.45 lat (msec): min=100, max=496, avg=224.10, stdev=116.44 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 101], 10.00th=[ 101], 20.00th=[ 117], | 30.00th=[ 130], 40.00th=[ 178], 50.00th=[ 209], 60.00th=[ 228], | 70.00th=[ 232], 80.00th=[ 234], 90.00th=[ 321], 95.00th=[ 498], | 99.00th=[ 498], 99.50th=[ 498], 99.90th=[ 498], 99.95th=[ 498], | 99.99th=[ 498] bw ( KiB/s): min= 2011, max= 4096, per=35.09%, avg=3537.20, stdev=904.99, samples=5 iops : min= 1, max= 4, avg= 3.00, stdev= 1.22, samples=5 lat (msec) : 50=8.33%, 250=66.67%, 500=25.00% cpu : usr=0.00%, sys=17.85%, ctx=163, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=149993: Tue Aug 18 21:36:15 2026 read: IOPS=2, BW=2751KiB/s (2817kB/s)(6144KiB/2233msec) clat (msec): min=94, max=257, avg=133.78, stdev=61.91 lat (msec): min=94, max=257, avg=133.79, stdev=61.91 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 94], 10.00th=[ 94], 20.00th=[ 96], | 30.00th=[ 96], 40.00th=[ 113], 50.00th=[ 113], 60.00th=[ 120], | 70.00th=[ 124], 80.00th=[ 124], 90.00th=[ 257], 95.00th=[ 257], | 99.00th=[ 257], 99.50th=[ 257], 99.90th=[ 257], 99.95th=[ 257], | 99.99th=[ 257] bw ( KiB/s): min= 4087, max= 6144, per=71.04%, avg=5115.50, stdev=1454.52, samples=2 iops : min= 3, max= 6, avg= 4.50, stdev= 2.12, samples=2 write: IOPS=2, BW=2751KiB/s (2817kB/s)(6144KiB/2233msec); 0 zone resets clat (msec): min=88, max=420, avg=233.69, stdev=140.54 lat (msec): min=88, max=420, avg=233.77, stdev=140.54 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 89], 10.00th=[ 89], 20.00th=[ 115], | 30.00th=[ 115], 40.00th=[ 182], 50.00th=[ 182], 60.00th=[ 205], | 70.00th=[ 393], 80.00th=[ 393], 90.00th=[ 422], 95.00th=[ 422], | 99.00th=[ 422], 99.50th=[ 422], 99.90th=[ 422], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 2011, max= 4096, per=28.62%, avg=2885.00, stdev=1031.89, samples=4 iops : min= 1, max= 4, avg= 2.25, stdev= 1.50, samples=4 lat (msec) : 100=25.00%, 250=50.00%, 500=25.00% cpu : usr=0.00%, sys=18.06%, ctx=357, 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=149994: Tue Aug 18 21:36:15 2026 read: IOPS=1, BW=1800KiB/s (1843kB/s)(5120KiB/2844msec) clat (msec): min=27, max=537, avg=242.49, stdev=230.67 lat (msec): min=27, max=537, avg=242.49, stdev=230.67 clat percentiles (msec): | 1.00th=[ 28], 5.00th=[ 28], 10.00th=[ 28], 20.00th=[ 28], | 30.00th=[ 59], 40.00th=[ 59], 50.00th=[ 153], 60.00th=[ 153], | 70.00th=[ 439], 80.00th=[ 439], 90.00th=[ 542], 95.00th=[ 542], | 99.00th=[ 542], 99.50th=[ 542], 99.90th=[ 542], 99.95th=[ 542], | 99.99th=[ 542] bw ( KiB/s): min= 4096, max= 4096, per=56.88%, avg=4096.00, stdev= 0.00, samples=2 iops : min= 4, max= 4, avg= 4.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2520KiB/s (2581kB/s)(7168KiB/2844msec); 0 zone resets clat (msec): min=74, max=465, avg=226.21, stdev=167.01 lat (msec): min=74, max=465, avg=226.28, stdev=167.01 clat percentiles (msec): | 1.00th=[ 75], 5.00th=[ 75], 10.00th=[ 75], 20.00th=[ 90], | 30.00th=[ 121], 40.00th=[ 121], 50.00th=[ 131], 60.00th=[ 259], | 70.00th=[ 259], 80.00th=[ 443], 90.00th=[ 468], 95.00th=[ 468], | 99.00th=[ 468], 99.50th=[ 468], 99.90th=[ 468], 99.95th=[ 468], | 99.99th=[ 468] bw ( KiB/s): min= 2011, max= 3396, per=23.55%, avg=2374.50, stdev=681.20, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 lat (msec) : 50=8.33%, 100=25.00%, 250=25.00%, 500=33.33%, 750=8.33% cpu : usr=0.04%, sys=12.63%, ctx=150, 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=7201KiB/s (7374kB/s), 760KiB/s-3158KiB/s (778kB/s-3233kB/s), io=20.0MiB (20.0MB), run=2233-2844msec WRITE: bw=9.84MiB/s (10.3MB/s), 2256KiB/s-3798KiB/s (2310kB/s-3889kB/s), io=28.0MiB (29.4MB), run=2233-2844msec rand-rw: (groupid=0, jobs=1): err= 0: pid=149996: Tue Aug 18 21:36:15 2026 read: IOPS=3, BW=3137KiB/s (3212kB/s)(7168KiB/2285msec) clat (usec): min=592, max=228868, avg=144478.36, stdev=73034.74 lat (usec): min=593, max=228870, avg=144479.67, stdev=73034.77 clat percentiles (usec): | 1.00th=[ 594], 5.00th=[ 594], 10.00th=[ 594], 20.00th=[120062], | 30.00th=[143655], 40.00th=[143655], 50.00th=[145753], 60.00th=[179307], | 70.00th=[179307], 80.00th=[191890], 90.00th=[229639], 95.00th=[229639], | 99.00th=[229639], 99.50th=[229639], 99.90th=[229639], 99.95th=[229639], | 99.99th=[229639] bw ( KiB/s): min= 2019, max= 5069, per=49.35%, avg=3714.33, stdev=1553.28, samples=3 iops : min= 1, max= 4, avg= 2.67, stdev= 1.53, samples=3 write: IOPS=2, BW=2241KiB/s (2294kB/s)(5120KiB/2285msec); 0 zone resets clat (msec): min=152, max=423, avg=251.78, stdev=115.45 lat (msec): min=152, max=424, avg=251.84, stdev=115.46 clat percentiles (msec): | 1.00th=[ 153], 5.00th=[ 153], 10.00th=[ 153], 20.00th=[ 153], | 30.00th=[ 176], 40.00th=[ 176], 50.00th=[ 190], 60.00th=[ 190], | 70.00th=[ 317], 80.00th=[ 317], 90.00th=[ 426], 95.00th=[ 426], | 99.00th=[ 426], 99.50th=[ 426], 99.90th=[ 426], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 2027, max= 4039, per=25.67%, avg=2704.67, stdev=1155.61, samples=3 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=3 lat (usec) : 750=8.33% lat (msec) : 250=75.00%, 500=16.67% cpu : usr=0.04%, sys=47.77%, ctx=1032, 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=149997: Tue Aug 18 21:36:15 2026 read: IOPS=0, BW=753KiB/s (771kB/s)(2048KiB/2721msec) clat (msec): min=201, max=350, avg=276.23, stdev=105.04 lat (msec): min=201, max=350, avg=276.23, stdev=105.04 clat percentiles (msec): | 1.00th=[ 203], 5.00th=[ 203], 10.00th=[ 203], 20.00th=[ 203], | 30.00th=[ 203], 40.00th=[ 203], 50.00th=[ 203], 60.00th=[ 351], | 70.00th=[ 351], 80.00th=[ 351], 90.00th=[ 351], 95.00th=[ 351], | 99.00th=[ 351], 99.50th=[ 351], 99.90th=[ 351], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 1684, max= 2019, per=24.60%, avg=1851.50, stdev=236.88, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=3, BW=3763KiB/s (3854kB/s)(10.0MiB/2721msec); 0 zone resets clat (msec): min=89, max=453, avg=207.67, stdev=132.50 lat (msec): min=90, max=453, avg=207.73, stdev=132.49 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 90], 10.00th=[ 90], 20.00th=[ 128], | 30.00th=[ 133], 40.00th=[ 138], 50.00th=[ 144], 60.00th=[ 157], | 70.00th=[ 178], 80.00th=[ 209], 90.00th=[ 451], 95.00th=[ 456], | 99.00th=[ 456], 99.50th=[ 456], 99.90th=[ 456], 99.95th=[ 456], | 99.99th=[ 456] bw ( KiB/s): min= 4096, max= 6083, per=51.37%, avg=5412.67, stdev=1140.33, samples=3 iops : min= 4, max= 5, avg= 4.67, stdev= 0.58, samples=3 lat (msec) : 100=8.33%, 250=66.67%, 500=25.00% cpu : usr=0.00%, sys=43.05%, ctx=210, 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=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=149998: Tue Aug 18 21:36:15 2026 read: IOPS=3, BW=3454KiB/s (3537kB/s)(6144KiB/1779msec) clat (usec): min=361, max=113549, avg=31827.67, stdev=45922.95 lat (usec): min=362, max=113549, avg=31828.97, stdev=45922.68 clat percentiles (usec): | 1.00th=[ 363], 5.00th=[ 363], 10.00th=[ 363], 20.00th=[ 594], | 30.00th=[ 594], 40.00th=[ 1516], 50.00th=[ 1516], 60.00th=[ 16057], | 70.00th=[ 58983], 80.00th=[ 58983], 90.00th=[113771], 95.00th=[113771], | 99.00th=[113771], 99.50th=[113771], 99.90th=[113771], 99.95th=[113771], | 99.99th=[113771] bw ( KiB/s): min= 4055, max= 6144, per=67.76%, avg=5099.50, stdev=1477.15, samples=2 iops : min= 3, max= 6, avg= 4.50, stdev= 2.12, samples=2 write: IOPS=3, BW=3454KiB/s (3537kB/s)(6144KiB/1779msec); 0 zone resets clat (msec): min=142, max=409, avg=253.76, stdev=101.68 lat (msec): min=142, max=409, avg=253.80, stdev=101.70 clat percentiles (msec): | 1.00th=[ 142], 5.00th=[ 142], 10.00th=[ 142], 20.00th=[ 178], | 30.00th=[ 178], 40.00th=[ 192], 50.00th=[ 192], 60.00th=[ 279], | 70.00th=[ 326], 80.00th=[ 326], 90.00th=[ 409], 95.00th=[ 409], | 99.00th=[ 409], 99.50th=[ 409], 99.90th=[ 409], 99.95th=[ 409], | 99.99th=[ 409] bw ( KiB/s): min= 1692, max= 4096, per=31.14%, avg=3281.00, stdev=1376.27, samples=3 iops : min= 1, max= 4, avg= 2.67, stdev= 1.53, samples=3 lat (usec) : 500=8.33%, 750=8.33% lat (msec) : 2=8.33%, 20=8.33%, 100=8.33%, 250=33.33%, 500=25.00% cpu : usr=0.00%, sys=40.49%, ctx=108, 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=149999: Tue Aug 18 21:36:15 2026 read: IOPS=1, BW=2045KiB/s (2094kB/s)(5120KiB/2504msec) clat (usec): min=420, max=206381, avg=79200.30, stdev=107985.30 lat (usec): min=420, max=206382, avg=79201.31, stdev=107985.07 clat percentiles (usec): | 1.00th=[ 420], 5.00th=[ 420], 10.00th=[ 420], 20.00th=[ 420], | 30.00th=[ 445], 40.00th=[ 445], 50.00th=[ 570], 60.00th=[ 570], | 70.00th=[187696], 80.00th=[187696], 90.00th=[206570], 95.00th=[206570], | 99.00th=[206570], 99.50th=[206570], 99.90th=[206570], 99.95th=[206570], | 99.99th=[206570] bw ( KiB/s): min= 8078, max= 8078, per=100.00%, avg=8078.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=2, BW=2863KiB/s (2931kB/s)(7168KiB/2504msec); 0 zone resets clat (msec): min=145, max=558, avg=295.33, stdev=161.60 lat (msec): min=146, max=558, avg=295.40, stdev=161.61 clat percentiles (msec): | 1.00th=[ 146], 5.00th=[ 146], 10.00th=[ 146], 20.00th=[ 148], | 30.00th=[ 178], 40.00th=[ 178], 50.00th=[ 266], 60.00th=[ 309], | 70.00th=[ 309], 80.00th=[ 464], 90.00th=[ 558], 95.00th=[ 558], | 99.00th=[ 558], 99.50th=[ 558], 99.90th=[ 558], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 1729, max= 4096, per=23.42%, avg=2467.75, stdev=1094.32, samples=4 iops : min= 1, max= 4, avg= 1.75, stdev= 1.50, samples=4 lat (usec) : 500=16.67%, 750=8.33% lat (msec) : 250=41.67%, 500=25.00%, 750=8.33% cpu : usr=0.08%, sys=39.87%, ctx=291, 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=7527KiB/s (7707kB/s), 753KiB/s-3454KiB/s (771kB/s-3537kB/s), io=20.0MiB (20.0MB), run=1779-2721msec WRITE: bw=10.3MiB/s (10.8MB/s), 2241KiB/s-3763KiB/s (2294kB/s-3854kB/s), io=28.0MiB (29.4MB), run=1779-2721msec 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=150005: Tue Aug 18 21:36:23 2026 read: IOPS=2, BW=8498KiB/s (8702kB/s)(12.0MiB/1446msec) clat (msec): min=374, max=515, avg=454.80, stdev=72.20 lat (msec): min=374, max=515, avg=454.81, stdev=72.20 clat percentiles (msec): | 1.00th=[ 376], 5.00th=[ 376], 10.00th=[ 376], 20.00th=[ 376], | 30.00th=[ 376], 40.00th=[ 477], 50.00th=[ 477], 60.00th=[ 477], | 70.00th=[ 514], 80.00th=[ 514], 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= 7742, max= 8159, per=77.45%, avg=7950.50, stdev=294.86, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=66.67%, 750=33.33% cpu : usr=0.00%, sys=47.82%, ctx=2384, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=150007: Tue Aug 18 21:36:23 2026 read: IOPS=0, BW=2566KiB/s (2628kB/s)(4096KiB/1596msec) clat (nsec): min=383352k, max=383352k, avg=383351689.00, stdev= 0.00 lat (nsec): min=383355k, max=383355k, avg=383354992.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 384], 5.00th=[ 384], 10.00th=[ 384], 20.00th=[ 384], | 30.00th=[ 384], 40.00th=[ 384], 50.00th=[ 384], 60.00th=[ 384], | 70.00th=[ 384], 80.00th=[ 384], 90.00th=[ 384], 95.00th=[ 384], | 99.00th=[ 384], 99.50th=[ 384], 99.90th=[ 384], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 7713, max= 7713, per=75.14%, avg=7713.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=1, BW=5133KiB/s (5256kB/s)(8192KiB/1596msec); 0 zone resets clat (msec): min=326, max=804, avg=565.17, stdev=338.12 lat (msec): min=326, max=804, avg=565.49, stdev=338.15 clat percentiles (msec): | 1.00th=[ 326], 5.00th=[ 326], 10.00th=[ 326], 20.00th=[ 326], | 30.00th=[ 326], 40.00th=[ 326], 50.00th=[ 326], 60.00th=[ 802], | 70.00th=[ 802], 80.00th=[ 802], 90.00th=[ 802], 95.00th=[ 802], | 99.00th=[ 802], 99.50th=[ 802], 99.90th=[ 802], 99.95th=[ 802], | 99.99th=[ 802] bw ( KiB/s): min= 8159, max= 8159, per=47.51%, avg=8159.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=66.67%, 1000=33.33% cpu : usr=0.00%, sys=27.27%, ctx=998, 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=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=150008: Tue Aug 18 21:36:23 2026 write: IOPS=1, BW=6440KiB/s (6595kB/s)(12.0MiB/1908msec); 0 zone resets clat (msec): min=110, max=1021, avg=610.34, stdev=462.00 lat (msec): min=110, max=1021, avg=610.70, stdev=462.09 clat percentiles (msec): | 1.00th=[ 111], 5.00th=[ 111], 10.00th=[ 111], 20.00th=[ 111], | 30.00th=[ 111], 40.00th=[ 701], 50.00th=[ 701], 60.00th=[ 701], | 70.00th=[ 1020], 80.00th=[ 1020], 90.00th=[ 1020], 95.00th=[ 1020], | 99.00th=[ 1020], 99.50th=[ 1020], 99.90th=[ 1020], 99.95th=[ 1020], | 99.99th=[ 1020] bw ( KiB/s): min= 8192, max= 8192, per=47.70%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.05%, sys=12.06%, ctx=155, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=150009: Tue Aug 18 21:36:23 2026 write: IOPS=1, BW=7743KiB/s (7929kB/s)(12.0MiB/1587msec); 0 zone resets clat (msec): min=267, max=904, avg=502.89, stdev=349.61 lat (msec): min=268, max=905, avg=503.22, stdev=349.65 clat percentiles (msec): | 1.00th=[ 268], 5.00th=[ 268], 10.00th=[ 268], 20.00th=[ 268], | 30.00th=[ 268], 40.00th=[ 338], 50.00th=[ 338], 60.00th=[ 338], | 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= 7801, max= 8159, per=46.47%, avg=7980.00, stdev=253.14, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=66.67%, 1000=33.33% cpu : usr=0.13%, sys=15.32%, ctx=139, 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=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=10.0MiB/s (10.5MB/s), 2566KiB/s-8498KiB/s (2628kB/s-8702kB/s), io=16.0MiB (16.8MB), run=1446-1596msec WRITE: bw=16.8MiB/s (17.6MB/s), 5133KiB/s-7743KiB/s (5256kB/s-7929kB/s), io=32.0MiB (33.6MB), run=1587-1908msec rand-rw: (groupid=0, jobs=1): err= 0: pid=150010: Tue Aug 18 21:36:23 2026 read: IOPS=2, BW=8834KiB/s (9046kB/s)(12.0MiB/1391msec) clat (msec): min=381, max=513, avg=453.40, stdev=66.73 lat (msec): min=381, max=513, avg=453.40, stdev=66.72 clat percentiles (msec): | 1.00th=[ 380], 5.00th=[ 380], 10.00th=[ 380], 20.00th=[ 380], | 30.00th=[ 380], 40.00th=[ 464], 50.00th=[ 464], 60.00th=[ 464], | 70.00th=[ 514], 80.00th=[ 514], 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= 5595, max= 8192, per=67.45%, avg=6893.50, stdev=1836.36, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 500=66.67%, 750=33.33% cpu : usr=0.00%, sys=17.41%, ctx=64, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=150011: Tue Aug 18 21:36:23 2026 read: IOPS=0, BW=2555KiB/s (2617kB/s)(4096KiB/1603msec) clat (nsec): min=541492k, max=541492k, avg=541492461.00, stdev= 0.00 lat (nsec): min=541495k, max=541495k, avg=541494703.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 542], 5.00th=[ 542], 10.00th=[ 542], 20.00th=[ 542], | 30.00th=[ 542], 40.00th=[ 542], 50.00th=[ 542], 60.00th=[ 542], | 70.00th=[ 542], 80.00th=[ 542], 90.00th=[ 542], 95.00th=[ 542], | 99.00th=[ 542], 99.50th=[ 542], 99.90th=[ 542], 99.95th=[ 542], | 99.99th=[ 542] bw ( KiB/s): min= 5793, max= 5793, per=56.68%, avg=5793.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=1, BW=5110KiB/s (5233kB/s)(8192KiB/1603msec); 0 zone resets clat (msec): min=301, max=735, avg=518.47, stdev=307.30 lat (msec): min=301, max=736, avg=518.82, stdev=307.52 clat percentiles (msec): | 1.00th=[ 300], 5.00th=[ 300], 10.00th=[ 300], 20.00th=[ 300], | 30.00th=[ 300], 40.00th=[ 300], 50.00th=[ 300], 60.00th=[ 735], | 70.00th=[ 735], 80.00th=[ 735], 90.00th=[ 735], 95.00th=[ 735], | 99.00th=[ 735], 99.50th=[ 735], 99.90th=[ 735], 99.95th=[ 735], | 99.99th=[ 735] bw ( KiB/s): min= 8192, max= 8192, per=47.45%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 750=66.67% cpu : usr=0.00%, sys=15.61%, ctx=43, 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=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=150012: Tue Aug 18 21:36:23 2026 write: IOPS=1, BW=6474KiB/s (6630kB/s)(12.0MiB/1898msec); 0 zone resets clat (msec): min=71, max=1320, avg=628.35, stdev=635.45 lat (msec): min=71, max=1321, avg=628.77, stdev=635.53 clat percentiles (msec): | 1.00th=[ 72], 5.00th=[ 72], 10.00th=[ 72], 20.00th=[ 72], | 30.00th=[ 72], 40.00th=[ 493], 50.00th=[ 493], 60.00th=[ 493], | 70.00th=[ 1318], 80.00th=[ 1318], 90.00th=[ 1318], 95.00th=[ 1318], | 99.00th=[ 1318], 99.50th=[ 1318], 99.90th=[ 1318], 99.95th=[ 1318], | 99.99th=[ 1318] bw ( KiB/s): min= 8175, max= 8175, per=47.35%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 100=33.33%, 500=33.33%, 2000=33.33% cpu : usr=0.16%, sys=10.81%, ctx=43, 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=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=150013: Tue Aug 18 21:36:23 2026 write: IOPS=1, BW=7609KiB/s (7791kB/s)(12.0MiB/1615msec); 0 zone resets clat (msec): min=383, max=715, avg=526.29, stdev=170.76 lat (msec): min=383, max=715, avg=526.57, stdev=170.75 clat percentiles (msec): | 1.00th=[ 384], 5.00th=[ 384], 10.00th=[ 384], 20.00th=[ 384], | 30.00th=[ 384], 40.00th=[ 481], 50.00th=[ 481], 60.00th=[ 481], | 70.00th=[ 718], 80.00th=[ 718], 90.00th=[ 718], 95.00th=[ 718], | 99.00th=[ 718], 99.50th=[ 718], 99.90th=[ 718], 99.95th=[ 718], | 99.99th=[ 718] bw ( KiB/s): min= 5641, max= 5641, per=32.67%, avg=5641.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=66.67%, 750=33.33% cpu : usr=0.06%, sys=22.06%, 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=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=9.98MiB/s (10.5MB/s), 2555KiB/s-8834KiB/s (2617kB/s-9046kB/s), io=16.0MiB (16.8MB), run=1391-1603msec WRITE: bw=16.9MiB/s (17.7MB/s), 5110KiB/s-7609KiB/s (5233kB/s-7791kB/s), io=32.0MiB (33.6MB), run=1603-1898msec