== sanity test 398b: DIO and buffer IO race ============== 11:27:44 (1788362864) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 4.09968 s, 12.3 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=185112: Wed Sep 2 11:29:18 2026 read: IOPS=18, BW=73.8KiB/s (75.6kB/s)(5992KiB/81182msec) clat (usec): min=38, max=234695, avg=29661.36, stdev=17776.92 lat (usec): min=39, max=234697, avg=29662.90, stdev=17777.33 clat percentiles (usec): | 1.00th=[ 68], 5.00th=[ 10421], 10.00th=[ 12911], 20.00th=[ 15926], | 30.00th=[ 18744], 40.00th=[ 22152], 50.00th=[ 26608], 60.00th=[ 31327], | 70.00th=[ 35914], 80.00th=[ 41681], 90.00th=[ 51119], 95.00th=[ 58459], | 99.00th=[ 83362], 99.50th=[ 98042], 99.90th=[191890], 99.95th=[233833], | 99.99th=[233833] bw ( KiB/s): min= 23, max= 135, per=24.76%, avg=73.04, stdev=20.40, samples=161 iops : min= 5, max= 33, avg=17.70, stdev= 5.14, samples=161 write: IOPS=19, BW=77.6KiB/s (79.4kB/s)(6296KiB/81182msec); 0 zone resets clat (usec): min=1140, max=152665, avg=23272.73, stdev=21232.13 lat (usec): min=1141, max=152667, avg=23279.17, stdev=21230.85 clat percentiles (usec): | 1.00th=[ 1303], 5.00th=[ 1762], 10.00th=[ 2573], 20.00th=[ 4178], | 30.00th=[ 7177], 40.00th=[ 13304], 50.00th=[ 17957], 60.00th=[ 23987], | 70.00th=[ 29754], 80.00th=[ 38536], 90.00th=[ 51643], 95.00th=[ 65799], | 99.00th=[ 91751], 99.50th=[101188], 99.90th=[132645], 99.95th=[152044], | 99.99th=[152044] bw ( KiB/s): min= 15, max= 160, per=24.94%, avg=76.80, stdev=24.59, samples=161 iops : min= 3, max= 40, avg=18.65, stdev= 6.23, samples=161 lat (usec) : 50=0.16%, 100=0.78%, 250=0.39%, 500=0.03% lat (msec) : 2=3.29%, 4=6.61%, 10=8.63%, 20=24.25%, 50=44.99% lat (msec) : 100=10.38%, 250=0.49% cpu : usr=0.10%, sys=9.95%, ctx=7871, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=185113: Wed Sep 2 11:29:18 2026 read: IOPS=18, BW=74.0KiB/s (75.8kB/s)(5940KiB/80258msec) clat (usec): min=38, max=220461, avg=29213.14, stdev=17545.55 lat (usec): min=39, max=220463, avg=29214.36, stdev=17545.51 clat percentiles (usec): | 1.00th=[ 69], 5.00th=[ 10159], 10.00th=[ 12911], 20.00th=[ 16057], | 30.00th=[ 19268], 40.00th=[ 22676], 50.00th=[ 25822], 60.00th=[ 29492], | 70.00th=[ 34866], 80.00th=[ 40109], 90.00th=[ 49546], 95.00th=[ 56361], | 99.00th=[ 84411], 99.50th=[104334], 99.90th=[175113], 99.95th=[221250], | 99.99th=[221250] bw ( KiB/s): min= 7, max= 128, per=24.87%, avg=73.38, stdev=21.36, samples=159 iops : min= 1, max= 32, avg=17.79, stdev= 5.40, samples=159 write: IOPS=19, BW=79.1KiB/s (80.0kB/s)(6348KiB/80258msec); 0 zone resets clat (usec): min=1074, max=131361, avg=23164.86, stdev=21269.52 lat (usec): min=1075, max=131363, avg=23168.09, stdev=21268.15 clat percentiles (usec): | 1.00th=[ 1270], 5.00th=[ 1762], 10.00th=[ 2474], 20.00th=[ 4080], | 30.00th=[ 6652], 40.00th=[ 12518], 50.00th=[ 18220], 60.00th=[ 23200], | 70.00th=[ 30278], 80.00th=[ 39584], 90.00th=[ 51643], 95.00th=[ 63177], | 99.00th=[ 90702], 99.50th=[105382], 99.90th=[128451], 99.95th=[131597], | 99.99th=[131597] bw ( KiB/s): min= 23, max= 176, per=25.37%, avg=78.14, stdev=25.68, samples=159 iops : min= 5, max= 44, avg=18.98, stdev= 6.45, samples=159 lat (usec) : 50=0.10%, 100=0.75%, 250=0.26% lat (msec) : 2=3.65%, 4=6.38%, 10=9.90%, 20=22.72%, 50=45.61% lat (msec) : 100=10.06%, 250=0.59% cpu : usr=0.11%, sys=10.06%, ctx=7700, 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=185114: Wed Sep 2 11:29:18 2026 read: IOPS=18, BW=74.4KiB/s (76.2kB/s)(6028KiB/80999msec) clat (usec): min=38, max=143195, avg=29537.63, stdev=17329.34 lat (usec): min=38, max=143197, avg=29539.48, stdev=17329.73 clat percentiles (usec): | 1.00th=[ 57], 5.00th=[ 10421], 10.00th=[ 12780], 20.00th=[ 16581], | 30.00th=[ 19530], 40.00th=[ 22676], 50.00th=[ 25560], 60.00th=[ 30278], | 70.00th=[ 34341], 80.00th=[ 40109], 90.00th=[ 50594], 95.00th=[ 61080], | 99.00th=[ 90702], 99.50th=[103285], 99.90th=[130548], 99.95th=[143655], | 99.99th=[143655] bw ( KiB/s): min= 16, max= 136, per=25.09%, avg=74.02, stdev=22.68, samples=161 iops : min= 4, max= 34, avg=17.96, stdev= 5.75, samples=161 write: IOPS=19, BW=77.3KiB/s (79.1kB/s)(6260KiB/80999msec); 0 zone resets clat (usec): min=1128, max=242904, avg=23238.61, stdev=22015.26 lat (usec): min=1129, max=242907, avg=23241.39, stdev=22015.86 clat percentiles (usec): | 1.00th=[ 1319], 5.00th=[ 1876], 10.00th=[ 2474], 20.00th=[ 3916], | 30.00th=[ 6587], 40.00th=[ 13435], 50.00th=[ 18220], 60.00th=[ 23462], | 70.00th=[ 30016], 80.00th=[ 38536], 90.00th=[ 51643], 95.00th=[ 64226], | 99.00th=[ 91751], 99.50th=[110625], 99.90th=[175113], 99.95th=[242222], | 99.99th=[242222] bw ( KiB/s): min= 15, max= 144, per=24.96%, avg=76.88, stdev=25.39, samples=161 iops : min= 3, max= 36, avg=18.66, stdev= 6.37, samples=161 lat (usec) : 50=0.13%, 100=1.17%, 250=0.13%, 500=0.03% lat (msec) : 2=2.93%, 4=7.55%, 10=8.04%, 20=22.62%, 50=46.74% lat (msec) : 100=9.96%, 250=0.68% cpu : usr=0.10%, sys=10.09%, ctx=7733, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=185115: Wed Sep 2 11:29:18 2026 read: IOPS=18, BW=74.4KiB/s (76.1kB/s)(6052KiB/81392msec) clat (usec): min=37, max=166199, avg=29650.71, stdev=16965.24 lat (usec): min=38, max=166200, avg=29652.44, stdev=16964.92 clat percentiles (usec): | 1.00th=[ 54], 5.00th=[ 9634], 10.00th=[ 12911], 20.00th=[ 16581], | 30.00th=[ 20055], 40.00th=[ 22938], 50.00th=[ 26870], 60.00th=[ 31327], | 70.00th=[ 35390], 80.00th=[ 41157], 90.00th=[ 50594], 95.00th=[ 57934], | 99.00th=[ 85459], 99.50th=[ 96994], 99.90th=[128451], 99.95th=[166724], | 99.99th=[166724] bw ( KiB/s): min= 31, max= 128, per=25.02%, avg=73.80, stdev=21.40, samples=161 iops : min= 7, max= 32, avg=17.89, stdev= 5.37, samples=161 write: IOPS=19, BW=76.6KiB/s (78.5kB/s)(6236KiB/81392msec); 0 zone resets clat (usec): min=1113, max=232456, avg=23345.49, stdev=22017.57 lat (usec): min=1114, max=232458, avg=23349.29, stdev=22015.88 clat percentiles (usec): | 1.00th=[ 1303], 5.00th=[ 1696], 10.00th=[ 2409], 20.00th=[ 3916], | 30.00th=[ 6521], 40.00th=[ 13304], 50.00th=[ 18220], 60.00th=[ 23200], | 70.00th=[ 30016], 80.00th=[ 39060], 90.00th=[ 53216], 95.00th=[ 68682], | 99.00th=[ 90702], 99.50th=[104334], 99.90th=[127402], 99.95th=[231736], | 99.99th=[231736] bw ( KiB/s): min= 23, max= 151, per=24.67%, avg=75.97, stdev=25.38, samples=161 iops : min= 5, max= 37, avg=18.44, stdev= 6.41, samples=161 lat (usec) : 50=0.26%, 100=1.20%, 250=0.36%, 500=0.07%, 750=0.03% lat (msec) : 2=3.71%, 4=6.84%, 10=8.20%, 20=21.71%, 50=46.48% lat (msec) : 100=10.64%, 250=0.49% cpu : usr=0.11%, sys=9.86%, ctx=7669, 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=295KiB/s (302kB/s), 73.8KiB/s-74.4KiB/s (75.6kB/s-76.2kB/s), io=23.4MiB (24.6MB), run=80258-81392msec WRITE: bw=309KiB/s (316kB/s), 76.6KiB/s-79.1KiB/s (78.5kB/s-80.0kB/s), io=24.6MiB (25.7MB), run=80258-81392msec rand-rw: (groupid=0, jobs=1): err= 0: pid=185107: Wed Sep 2 11:29:43 2026 read: IOPS=14, BW=56.0KiB/s (57.4kB/s)(5992KiB/106944msec) clat (msec): min=4, max=741, avg=28.77, stdev=29.90 lat (msec): min=4, max=741, avg=28.77, stdev=29.90 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 8], 10.00th=[ 10], 20.00th=[ 12], | 30.00th=[ 15], 40.00th=[ 17], 50.00th=[ 20], 60.00th=[ 24], | 70.00th=[ 30], 80.00th=[ 41], 90.00th=[ 63], 95.00th=[ 82], | 99.00th=[ 117], 99.50th=[ 128], 99.90th=[ 163], 99.95th=[ 743], | 99.99th=[ 743] bw ( KiB/s): min= 7, max= 184, per=24.91%, avg=55.81, stdev=34.69, samples=211 iops : min= 1, max= 46, avg=13.38, stdev= 8.71, samples=211 write: IOPS=14, BW=58.9KiB/s (60.3kB/s)(6296KiB/106944msec); 0 zone resets clat (msec): min=8, max=222, avg=40.37, stdev=27.71 lat (msec): min=8, max=222, avg=40.38, stdev=27.71 clat percentiles (msec): | 1.00th=[ 13], 5.00th=[ 16], 10.00th=[ 17], 20.00th=[ 21], | 30.00th=[ 23], 40.00th=[ 27], 50.00th=[ 31], 60.00th=[ 37], | 70.00th=[ 46], 80.00th=[ 58], 90.00th=[ 77], 95.00th=[ 96], | 99.00th=[ 144], 99.50th=[ 165], 99.90th=[ 213], 99.95th=[ 222], | 99.99th=[ 222] bw ( KiB/s): min= 7, max= 175, per=25.16%, avg=58.87, stdev=32.56, samples=210 iops : min= 1, max= 43, avg=14.14, stdev= 8.16, samples=210 lat (msec) : 10=6.25%, 20=28.39%, 50=44.56%, 100=17.58%, 250=3.19% lat (msec) : 750=0.03% cpu : usr=0.08%, sys=4.32%, ctx=5367, 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=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=185108: Wed Sep 2 11:29:43 2026 read: IOPS=14, BW=56.0KiB/s (57.4kB/s)(5940KiB/106048msec) clat (msec): min=4, max=735, avg=28.62, stdev=30.51 lat (msec): min=4, max=735, avg=28.62, stdev=30.51 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 12], | 30.00th=[ 14], 40.00th=[ 17], 50.00th=[ 20], 60.00th=[ 24], | 70.00th=[ 29], 80.00th=[ 41], 90.00th=[ 62], 95.00th=[ 81], | 99.00th=[ 126], 99.50th=[ 131], 99.90th=[ 215], 99.95th=[ 735], | 99.99th=[ 735] bw ( KiB/s): min= 7, max= 199, per=24.89%, avg=55.75, stdev=35.93, samples=209 iops : min= 1, max= 49, avg=13.36, stdev= 9.01, samples=209 write: IOPS=14, BW=59.9KiB/s (61.3kB/s)(6348KiB/106048msec); 0 zone resets clat (msec): min=9, max=229, avg=39.86, stdev=26.26 lat (msec): min=9, max=229, avg=39.86, stdev=26.26 clat percentiles (msec): | 1.00th=[ 12], 5.00th=[ 15], 10.00th=[ 17], 20.00th=[ 20], | 30.00th=[ 23], 40.00th=[ 27], 50.00th=[ 31], 60.00th=[ 39], | 70.00th=[ 46], 80.00th=[ 58], 90.00th=[ 73], 95.00th=[ 91], | 99.00th=[ 132], 99.50th=[ 146], 99.90th=[ 220], 99.95th=[ 230], | 99.99th=[ 230] bw ( KiB/s): min= 15, max= 167, per=25.55%, avg=59.79, stdev=31.94, samples=208 iops : min= 3, max= 41, avg=14.38, stdev= 8.01, samples=208 lat (msec) : 10=6.58%, 20=29.43%, 50=42.90%, 100=18.20%, 250=2.86% lat (msec) : 750=0.03% cpu : usr=0.07%, sys=4.46%, ctx=5378, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=185109: Wed Sep 2 11:29:43 2026 read: IOPS=14, BW=56.8KiB/s (58.1kB/s)(6028KiB/106189msec) clat (msec): min=5, max=198, avg=28.50, stdev=24.15 lat (msec): min=5, max=198, avg=28.50, stdev=24.15 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 8], 10.00th=[ 10], 20.00th=[ 12], | 30.00th=[ 14], 40.00th=[ 17], 50.00th=[ 21], 60.00th=[ 25], | 70.00th=[ 31], 80.00th=[ 41], 90.00th=[ 63], 95.00th=[ 81], | 99.00th=[ 120], 99.50th=[ 136], 99.90th=[ 197], 99.95th=[ 199], | 99.99th=[ 199] bw ( KiB/s): min= 15, max= 167, per=25.49%, avg=57.09, stdev=33.48, samples=208 iops : min= 3, max= 41, avg=13.70, stdev= 8.39, samples=208 write: IOPS=14, BW=58.0KiB/s (60.4kB/s)(6260KiB/106189msec); 0 zone resets clat (msec): min=9, max=759, avg=40.23, stdev=31.40 lat (msec): min=9, max=759, avg=40.23, stdev=31.40 clat percentiles (msec): | 1.00th=[ 12], 5.00th=[ 15], 10.00th=[ 17], 20.00th=[ 20], | 30.00th=[ 24], 40.00th=[ 27], 50.00th=[ 31], 60.00th=[ 37], | 70.00th=[ 47], 80.00th=[ 58], 90.00th=[ 75], 95.00th=[ 91], | 99.00th=[ 131], 99.50th=[ 140], 99.90th=[ 222], 99.95th=[ 760], | 99.99th=[ 760] bw ( KiB/s): min= 15, max= 158, per=25.09%, avg=58.70, stdev=33.20, samples=210 iops : min= 3, max= 39, avg=14.10, stdev= 8.33, samples=210 lat (msec) : 10=6.25%, 20=28.68%, 50=44.60%, 100=17.61%, 250=2.83% lat (msec) : 1000=0.03% cpu : usr=0.07%, sys=4.40%, ctx=5378, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=185110: Wed Sep 2 11:29:43 2026 read: IOPS=14, BW=56.5KiB/s (57.9kB/s)(6052KiB/107051msec) clat (msec): min=4, max=157, avg=28.12, stdev=23.35 lat (msec): min=4, max=157, avg=28.13, stdev=23.35 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 12], | 30.00th=[ 14], 40.00th=[ 17], 50.00th=[ 21], 60.00th=[ 24], | 70.00th=[ 30], 80.00th=[ 41], 90.00th=[ 62], 95.00th=[ 78], | 99.00th=[ 121], 99.50th=[ 128], 99.90th=[ 150], 99.95th=[ 159], | 99.99th=[ 159] bw ( KiB/s): min= 7, max= 216, per=25.36%, avg=56.81, stdev=35.13, samples=209 iops : min= 1, max= 54, avg=13.63, stdev= 8.82, samples=209 write: IOPS=14, BW=58.3KiB/s (59.7kB/s)(6236KiB/107051msec); 0 zone resets clat (msec): min=7, max=744, avg=41.19, stdev=32.00 lat (msec): min=7, max=744, avg=41.19, stdev=32.00 clat percentiles (msec): | 1.00th=[ 13], 5.00th=[ 15], 10.00th=[ 17], 20.00th=[ 21], | 30.00th=[ 24], 40.00th=[ 28], 50.00th=[ 32], 60.00th=[ 38], | 70.00th=[ 47], 80.00th=[ 60], 90.00th=[ 78], 95.00th=[ 92], | 99.00th=[ 138], 99.50th=[ 159], 99.90th=[ 218], 99.95th=[ 743], | 99.99th=[ 743] bw ( KiB/s): min= 15, max= 167, per=24.76%, avg=57.93, stdev=31.93, samples=211 iops : min= 3, max= 41, avg=13.91, stdev= 8.02, samples=211 lat (msec) : 10=6.71%, 20=28.16%, 50=43.68%, 100=18.78%, 250=2.64% lat (msec) : 750=0.03% cpu : usr=0.08%, sys=4.36%, ctx=5337, 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=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=224KiB/s (230kB/s), 56.0KiB/s-56.8KiB/s (57.4kB/s-58.1kB/s), io=23.4MiB (24.6MB), run=106048-107051msec WRITE: bw=235KiB/s (240kB/s), 58.3KiB/s-59.9KiB/s (59.7kB/s-61.3kB/s), io=24.6MiB (25.7MB), run=106048-107051msec 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=185152: Wed Sep 2 11:30:10 2026 read: IOPS=19, BW=314KiB/s (322kB/s)(5920KiB/18844msec) clat (usec): min=41, max=91028, avg=26541.64, stdev=15257.56 lat (usec): min=42, max=91029, avg=26545.92, stdev=15259.26 clat percentiles (usec): | 1.00th=[ 55], 5.00th=[ 89], 10.00th=[ 7635], 20.00th=[15533], | 30.00th=[19006], 40.00th=[22414], 50.00th=[24773], 60.00th=[29492], | 70.00th=[33162], 80.00th=[36963], 90.00th=[43779], 95.00th=[54789], | 99.00th=[78119], 99.50th=[80217], 99.90th=[90702], 99.95th=[90702], | 99.99th=[90702] bw ( KiB/s): min= 192, max= 541, per=25.78%, avg=315.32, stdev=71.12, samples=37 iops : min= 12, max= 33, avg=19.00, stdev= 4.49, samples=37 write: IOPS=21, BW=338KiB/s (346kB/s)(6368KiB/18844msec); 0 zone resets clat (usec): min=1877, max=100200, avg=22259.23, stdev=18646.58 lat (usec): min=1880, max=100201, avg=22273.99, stdev=18673.94 clat percentiles (msec): | 1.00th=[ 3], 5.00th=[ 4], 10.00th=[ 5], 20.00th=[ 7], | 30.00th=[ 10], 40.00th=[ 14], 50.00th=[ 17], 60.00th=[ 22], | 70.00th=[ 29], 80.00th=[ 35], 90.00th=[ 46], 95.00th=[ 66], | 99.00th=[ 87], 99.50th=[ 96], 99.90th=[ 101], 99.95th=[ 101], | 99.99th=[ 101] bw ( KiB/s): min= 127, max= 600, per=26.33%, avg=338.92, stdev=99.71, samples=37 iops : min= 7, max= 37, avg=20.49, stdev= 6.25, samples=37 lat (usec) : 50=0.26%, 100=2.60%, 250=1.69% lat (msec) : 2=0.26%, 4=3.52%, 10=13.02%, 20=23.70%, 50=47.53% lat (msec) : 100=7.29%, 250=0.13% cpu : usr=0.10%, sys=14.97%, ctx=2289, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=185153: Wed Sep 2 11:30:10 2026 read: IOPS=19, BW=306KiB/s (314kB/s)(5744KiB/18745msec) clat (usec): min=38, max=103597, avg=26433.23, stdev=16596.76 lat (usec): min=38, max=103599, avg=26434.23, stdev=16596.76 clat percentiles (usec): | 1.00th=[ 58], 5.00th=[ 106], 10.00th=[ 8455], 20.00th=[ 14484], | 30.00th=[ 17695], 40.00th=[ 21890], 50.00th=[ 24773], 60.00th=[ 27919], | 70.00th=[ 31851], 80.00th=[ 38011], 90.00th=[ 44827], 95.00th=[ 54264], | 99.00th=[ 93848], 99.50th=[100140], 99.90th=[103285], 99.95th=[103285], | 99.99th=[103285] bw ( KiB/s): min= 56, max= 480, per=25.22%, avg=308.49, stdev=90.53, samples=37 iops : min= 3, max= 30, avg=18.57, stdev= 5.69, samples=37 write: IOPS=21, BW=349KiB/s (357kB/s)(6544KiB/18745msec); 0 zone resets clat (usec): min=1901, max=89195, avg=22406.87, stdev=17241.65 lat (usec): min=1903, max=89196, avg=22409.15, stdev=17241.49 clat percentiles (usec): | 1.00th=[ 2245], 5.00th=[ 3195], 10.00th=[ 4228], 20.00th=[ 6325], | 30.00th=[10421], 40.00th=[14091], 50.00th=[17957], 60.00th=[22938], | 70.00th=[28181], 80.00th=[36439], 90.00th=[46400], 95.00th=[56361], | 99.00th=[73925], 99.50th=[81265], 99.90th=[89654], 99.95th=[89654], | 99.99th=[89654] bw ( KiB/s): min= 159, max= 541, per=27.10%, avg=348.84, stdev=94.18, samples=37 iops : min= 9, max= 33, avg=21.11, stdev= 5.91, samples=37 lat (usec) : 50=0.13%, 100=1.69%, 250=2.34% lat (msec) : 2=0.91%, 4=4.30%, 10=11.33%, 20=24.48%, 50=47.01% lat (msec) : 100=7.68%, 250=0.13% cpu : usr=0.11%, sys=15.09%, ctx=2314, 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=185154: Wed Sep 2 11:30:10 2026 read: IOPS=19, BW=320KiB/s (327kB/s)(6256KiB/19579msec) clat (usec): min=36, max=145317, avg=26751.06, stdev=18487.45 lat (usec): min=37, max=145318, avg=26752.02, stdev=18487.44 clat percentiles (usec): | 1.00th=[ 42], 5.00th=[ 73], 10.00th=[ 420], 20.00th=[ 14353], | 30.00th=[ 18482], 40.00th=[ 21627], 50.00th=[ 23987], 60.00th=[ 28443], | 70.00th=[ 32375], 80.00th=[ 37487], 90.00th=[ 45876], 95.00th=[ 55837], | 99.00th=[ 93848], 99.50th=[135267], 99.90th=[145753], 99.95th=[145753], | 99.99th=[145753] bw ( KiB/s): min= 126, max= 477, per=25.95%, avg=317.42, stdev=79.62, samples=38 iops : min= 7, max= 29, avg=19.13, stdev= 4.99, samples=38 write: IOPS=19, BW=308KiB/s (315kB/s)(6032KiB/19579msec); 0 zone resets clat (usec): min=1611, max=119904, avg=23742.92, stdev=19082.43 lat (usec): min=1613, max=119907, avg=23745.51, stdev=19081.94 clat percentiles (usec): | 1.00th=[ 1745], 5.00th=[ 2999], 10.00th=[ 4228], 20.00th=[ 6128], | 30.00th=[ 9503], 40.00th=[ 14746], 50.00th=[ 19268], 60.00th=[ 24773], | 70.00th=[ 30802], 80.00th=[ 37487], 90.00th=[ 52167], 95.00th=[ 61080], | 99.00th=[ 81265], 99.50th=[ 85459], 99.90th=[120062], 99.95th=[120062], | 99.99th=[120062] bw ( KiB/s): min= 96, max= 510, per=23.34%, avg=300.42, stdev=96.60, samples=38 iops : min= 6, max= 31, avg=18.05, stdev= 5.97, samples=38 lat (usec) : 50=0.52%, 100=3.39%, 250=1.17%, 500=0.26%, 1000=0.13% lat (msec) : 2=0.91%, 4=3.65%, 10=11.59%, 20=22.01%, 50=47.27% lat (msec) : 100=8.59%, 250=0.52% cpu : usr=0.11%, sys=14.19%, ctx=2319, 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=185155: Wed Sep 2 11:30:10 2026 read: IOPS=19, BW=314KiB/s (322kB/s)(6032KiB/19185msec) clat (usec): min=36, max=85751, avg=25807.87, stdev=15915.00 lat (usec): min=37, max=85752, avg=25808.88, stdev=15914.87 clat percentiles (usec): | 1.00th=[ 57], 5.00th=[ 88], 10.00th=[ 147], 20.00th=[14353], | 30.00th=[17171], 40.00th=[20317], 50.00th=[24249], 60.00th=[28443], | 70.00th=[33817], 80.00th=[38536], 90.00th=[45351], 95.00th=[54789], | 99.00th=[71828], 99.50th=[80217], 99.90th=[85459], 99.95th=[85459], | 99.99th=[85459] bw ( KiB/s): min= 95, max= 479, per=25.68%, avg=314.05, stdev=105.54, samples=38 iops : min= 5, max= 29, avg=18.92, stdev= 6.74, samples=38 write: IOPS=20, BW=326KiB/s (334kB/s)(6256KiB/19185msec); 0 zone resets clat (usec): min=1747, max=146170, avg=23682.87, stdev=20344.25 lat (usec): min=1748, max=146171, avg=23685.36, stdev=20344.08 clat percentiles (usec): | 1.00th=[ 1893], 5.00th=[ 3130], 10.00th=[ 4080], 20.00th=[ 6194], | 30.00th=[ 9896], 40.00th=[ 14484], 50.00th=[ 18744], 60.00th=[ 23200], | 70.00th=[ 28705], 80.00th=[ 39060], 90.00th=[ 51119], 95.00th=[ 57934], | 99.00th=[ 98042], 99.50th=[119014], 99.90th=[145753], 99.95th=[145753], | 99.99th=[145753] bw ( KiB/s): min= 190, max= 476, per=25.37%, avg=326.50, stdev=71.47, samples=38 iops : min= 11, max= 29, avg=19.71, stdev= 4.40, samples=38 lat (usec) : 50=0.13%, 100=2.73%, 250=2.47%, 500=0.39%, 750=0.13% lat (msec) : 2=0.91%, 4=3.91%, 10=11.07%, 20=24.87%, 50=44.27% lat (msec) : 100=8.72%, 250=0.39% cpu : usr=0.10%, sys=14.65%, ctx=2223, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=1223KiB/s (1253kB/s), 306KiB/s-320KiB/s (314kB/s-327kB/s), io=23.4MiB (24.5MB), run=18745-19579msec WRITE: bw=1287KiB/s (1318kB/s), 308KiB/s-349KiB/s (315kB/s-357kB/s), io=24.6MiB (25.8MB), run=18745-19579msec rand-rw: (groupid=0, jobs=1): err= 0: pid=185148: Wed Sep 2 11:30:15 2026 read: IOPS=14, BW=239KiB/s (244kB/s)(5920KiB/24808msec) clat (msec): min=4, max=110, avg=26.21, stdev=19.68 lat (msec): min=4, max=110, avg=26.21, stdev=19.68 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 15], 40.00th=[ 17], 50.00th=[ 20], 60.00th=[ 23], | 70.00th=[ 29], 80.00th=[ 37], 90.00th=[ 56], 95.00th=[ 72], | 99.00th=[ 101], 99.50th=[ 101], 99.90th=[ 111], 99.95th=[ 111], | 99.99th=[ 111] bw ( KiB/s): min= 31, max= 608, per=24.75%, avg=237.14, stdev=128.53, samples=49 iops : min= 1, max= 38, avg=14.24, stdev= 8.14, samples=49 write: IOPS=16, BW=257KiB/s (263kB/s)(6368KiB/24808msec); 0 zone resets clat (msec): min=12, max=140, avg=37.87, stdev=22.35 lat (msec): min=12, max=140, avg=37.87, stdev=22.35 clat percentiles (msec): | 1.00th=[ 14], 5.00th=[ 16], 10.00th=[ 18], 20.00th=[ 21], | 30.00th=[ 24], 40.00th=[ 27], 50.00th=[ 30], 60.00th=[ 36], | 70.00th=[ 43], 80.00th=[ 54], 90.00th=[ 70], 95.00th=[ 87], | 99.00th=[ 113], 99.50th=[ 130], 99.90th=[ 142], 99.95th=[ 142], | 99.99th=[ 142] bw ( KiB/s): min= 63, max= 574, per=25.42%, avg=256.22, stdev=115.51, samples=49 iops : min= 3, max= 35, avg=15.43, stdev= 7.34, samples=49 lat (msec) : 10=4.69%, 20=29.30%, 50=48.70%, 100=15.63%, 250=1.69% cpu : usr=0.07%, sys=5.87%, ctx=1401, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=185149: Wed Sep 2 11:30:15 2026 read: IOPS=14, BW=230KiB/s (235kB/s)(5744KiB/24987msec) clat (msec): min=6, max=165, avg=26.72, stdev=23.25 lat (msec): min=6, max=165, avg=26.72, stdev=23.25 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 13], | 30.00th=[ 15], 40.00th=[ 17], 50.00th=[ 19], 60.00th=[ 22], | 70.00th=[ 26], 80.00th=[ 37], 90.00th=[ 56], 95.00th=[ 79], | 99.00th=[ 120], 99.50th=[ 159], 99.90th=[ 165], 99.95th=[ 165], | 99.99th=[ 165] bw ( KiB/s): min= 55, max= 544, per=23.74%, avg=227.45, stdev=119.66, samples=49 iops : min= 3, max= 34, avg=13.63, stdev= 7.63, samples=49 write: IOPS=16, BW=262KiB/s (268kB/s)(6544KiB/24987msec); 0 zone resets clat (msec): min=11, max=136, avg=37.41, stdev=21.23 lat (msec): min=11, max=136, avg=37.41, stdev=21.22 clat percentiles (msec): | 1.00th=[ 13], 5.00th=[ 16], 10.00th=[ 18], 20.00th=[ 21], | 30.00th=[ 24], 40.00th=[ 27], 50.00th=[ 31], 60.00th=[ 37], | 70.00th=[ 44], 80.00th=[ 53], 90.00th=[ 68], 95.00th=[ 80], | 99.00th=[ 102], 99.50th=[ 124], 99.90th=[ 138], 99.95th=[ 138], | 99.99th=[ 138] bw ( KiB/s): min= 63, max= 576, per=25.53%, avg=257.33, stdev=125.46, samples=49 iops : min= 3, max= 36, avg=15.51, stdev= 7.96, samples=49 lat (msec) : 10=4.82%, 20=31.12%, 50=46.09%, 100=16.41%, 250=1.56% cpu : usr=0.07%, sys=5.91%, ctx=1391, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=185150: Wed Sep 2 11:30:15 2026 read: IOPS=15, BW=252KiB/s (258kB/s)(6256KiB/24815msec) clat (msec): min=5, max=161, avg=26.90, stdev=23.14 lat (msec): min=5, max=161, avg=26.91, stdev=23.14 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 14], 40.00th=[ 17], 50.00th=[ 20], 60.00th=[ 22], | 70.00th=[ 27], 80.00th=[ 36], 90.00th=[ 59], 95.00th=[ 74], | 99.00th=[ 126], 99.50th=[ 155], 99.90th=[ 163], 99.95th=[ 163], | 99.99th=[ 163] bw ( KiB/s): min= 95, max= 800, per=26.40%, avg=252.94, stdev=139.43, samples=49 iops : min= 5, max= 50, avg=15.22, stdev= 8.88, samples=49 write: IOPS=15, BW=243KiB/s (249kB/s)(6032KiB/24815msec); 0 zone resets clat (msec): min=10, max=142, avg=37.69, stdev=22.54 lat (msec): min=10, max=142, avg=37.70, stdev=22.55 clat percentiles (msec): | 1.00th=[ 15], 5.00th=[ 17], 10.00th=[ 18], 20.00th=[ 20], | 30.00th=[ 23], 40.00th=[ 26], 50.00th=[ 30], 60.00th=[ 36], | 70.00th=[ 43], 80.00th=[ 55], 90.00th=[ 69], 95.00th=[ 84], | 99.00th=[ 121], 99.50th=[ 138], 99.90th=[ 142], 99.95th=[ 142], | 99.99th=[ 142] bw ( KiB/s): min= 63, max= 574, per=23.85%, avg=240.45, stdev=117.07, samples=49 iops : min= 3, max= 35, avg=14.45, stdev= 7.40, samples=49 lat (msec) : 10=3.78%, 20=33.85%, 50=44.66%, 100=16.02%, 250=1.69% cpu : usr=0.08%, sys=5.86%, ctx=1372, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=185151: Wed Sep 2 11:30:15 2026 read: IOPS=15, BW=244KiB/s (250kB/s)(6032KiB/24709msec) clat (msec): min=5, max=165, avg=26.49, stdev=21.50 lat (msec): min=5, max=165, avg=26.49, stdev=21.50 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 12], | 30.00th=[ 14], 40.00th=[ 16], 50.00th=[ 19], 60.00th=[ 22], | 70.00th=[ 28], 80.00th=[ 39], 90.00th=[ 55], 95.00th=[ 75], | 99.00th=[ 101], 99.50th=[ 112], 99.90th=[ 165], 99.95th=[ 165], | 99.99th=[ 165] bw ( KiB/s): min= 31, max= 608, per=25.33%, avg=242.65, stdev=133.72, samples=49 iops : min= 1, max= 38, avg=14.59, stdev= 8.49, samples=49 write: IOPS=15, BW=253KiB/s (259kB/s)(6256KiB/24709msec); 0 zone resets clat (msec): min=11, max=142, avg=37.41, stdev=21.94 lat (msec): min=11, max=142, avg=37.42, stdev=21.94 clat percentiles (msec): | 1.00th=[ 13], 5.00th=[ 16], 10.00th=[ 19], 20.00th=[ 22], | 30.00th=[ 24], 40.00th=[ 26], 50.00th=[ 31], 60.00th=[ 36], | 70.00th=[ 44], 80.00th=[ 53], 90.00th=[ 69], 95.00th=[ 80], | 99.00th=[ 124], 99.50th=[ 142], 99.90th=[ 144], 99.95th=[ 144], | 99.99th=[ 144] bw ( KiB/s): min= 32, max= 544, per=25.17%, avg=253.76, stdev=127.24, samples=49 iops : min= 2, max= 34, avg=15.29, stdev= 8.09, samples=49 lat (msec) : 10=4.56%, 20=31.12%, 50=46.74%, 100=16.02%, 250=1.56% cpu : usr=0.08%, sys=5.89%, ctx=1366, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=959KiB/s (982kB/s), 230KiB/s-252KiB/s (235kB/s-258kB/s), io=23.4MiB (24.5MB), run=24709-24987msec WRITE: bw=1009KiB/s (1033kB/s), 243KiB/s-262KiB/s (249kB/s-268kB/s), io=24.6MiB (25.8MB), run=24709-24987msec 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=185164: Wed Sep 2 11:30:25 2026 read: IOPS=2, BW=2985KiB/s (3057kB/s)(7168KiB/2401msec) clat (usec): min=682, max=200136, avg=127465.94, stdev=61441.70 lat (usec): min=683, max=200139, avg=127467.26, stdev=61442.00 clat percentiles (usec): | 1.00th=[ 685], 5.00th=[ 685], 10.00th=[ 685], 20.00th=[121111], | 30.00th=[127402], 40.00th=[127402], 50.00th=[143655], 60.00th=[143655], | 70.00th=[143655], 80.00th=[154141], 90.00th=[200279], 95.00th=[200279], | 99.00th=[200279], 99.50th=[200279], 99.90th=[200279], 99.95th=[200279], | 99.99th=[200279] bw ( KiB/s): min= 2035, max= 3771, per=53.13%, avg=3187.67, stdev=998.26, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=2, BW=2132KiB/s (2184kB/s)(5120KiB/2401msec); 0 zone resets clat (msec): min=173, max=523, avg=271.68, stdev=149.72 lat (msec): min=173, max=523, avg=271.73, stdev=149.73 clat percentiles (msec): | 1.00th=[ 174], 5.00th=[ 174], 10.00th=[ 174], 20.00th=[ 174], | 30.00th=[ 176], 40.00th=[ 176], 50.00th=[ 190], 60.00th=[ 190], | 70.00th=[ 296], 80.00th=[ 296], 90.00th=[ 523], 95.00th=[ 523], | 99.00th=[ 523], 99.50th=[ 523], 99.90th=[ 523], 99.95th=[ 523], | 99.99th=[ 523] bw ( KiB/s): min= 1878, max= 4087, per=31.75%, avg=2666.67, stdev=1232.55, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (usec) : 750=8.33% lat (msec) : 250=75.00%, 500=8.33%, 750=8.33% cpu : usr=0.00%, sys=38.17%, ctx=458, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=185165: Wed Sep 2 11:30:25 2026 read: IOPS=0, BW=600KiB/s (614kB/s)(2048KiB/3413msec) clat (msec): min=30, max=196, avg=113.07, stdev=117.39 lat (msec): min=30, max=196, avg=113.08, stdev=117.39 clat percentiles (msec): | 1.00th=[ 31], 5.00th=[ 31], 10.00th=[ 31], 20.00th=[ 31], | 30.00th=[ 31], 40.00th=[ 31], 50.00th=[ 31], 60.00th=[ 197], | 70.00th=[ 197], 80.00th=[ 197], 90.00th=[ 197], 95.00th=[ 197], | 99.00th=[ 197], 99.50th=[ 197], 99.90th=[ 197], 99.95th=[ 197], | 99.99th=[ 197] bw ( KiB/s): min= 1841, max= 2048, per=32.41%, avg=1944.50, stdev=146.37, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 write: IOPS=2, BW=3000KiB/s (3072kB/s)(10.0MiB/3413msec); 0 zone resets clat (msec): min=121, max=550, avg=308.54, stdev=134.09 lat (msec): min=121, max=551, avg=308.63, stdev=134.07 clat percentiles (msec): | 1.00th=[ 122], 5.00th=[ 122], 10.00th=[ 122], 20.00th=[ 186], | 30.00th=[ 188], 40.00th=[ 222], 50.00th=[ 292], 60.00th=[ 305], | 70.00th=[ 388], 80.00th=[ 401], 90.00th=[ 430], 95.00th=[ 550], | 99.00th=[ 550], 99.50th=[ 550], 99.90th=[ 550], 99.95th=[ 550], | 99.99th=[ 550] bw ( KiB/s): min= 1878, max= 6131, per=43.38%, avg=3643.80, stdev=1750.27, samples=5 iops : min= 1, max= 5, avg= 2.80, stdev= 1.79, samples=5 lat (msec) : 50=8.33%, 250=41.67%, 500=41.67%, 750=8.33% cpu : usr=0.00%, sys=36.05%, ctx=231, 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=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=185166: Wed Sep 2 11:30:25 2026 read: IOPS=2, BW=2416KiB/s (2474kB/s)(6144KiB/2543msec) clat (usec): min=522, max=230388, avg=153853.03, stdev=100165.83 lat (usec): min=523, max=230416, avg=153858.80, stdev=100169.96 clat percentiles (usec): | 1.00th=[ 523], 5.00th=[ 523], 10.00th=[ 523], 20.00th=[ 53740], | 30.00th=[ 53740], 40.00th=[202376], 50.00th=[202376], 60.00th=[208667], | 70.00th=[227541], 80.00th=[227541], 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= 4087, max= 6107, per=84.95%, avg=5097.00, stdev=1428.36, samples=2 iops : min= 3, max= 5, avg= 4.00, stdev= 1.41, samples=2 write: IOPS=2, BW=2416KiB/s (2474kB/s)(6144KiB/2543msec); 0 zone resets clat (msec): min=146, max=576, avg=264.98, stdev=163.70 lat (msec): min=146, max=576, avg=265.04, stdev=163.68 clat percentiles (msec): | 1.00th=[ 148], 5.00th=[ 148], 10.00th=[ 148], 20.00th=[ 153], | 30.00th=[ 153], 40.00th=[ 190], 50.00th=[ 190], 60.00th=[ 218], | 70.00th=[ 309], 80.00th=[ 309], 90.00th=[ 575], 95.00th=[ 575], | 99.00th=[ 575], 99.50th=[ 575], 99.90th=[ 575], 99.95th=[ 575], | 99.99th=[ 575] bw ( KiB/s): min= 1878, max= 3657, per=28.61%, avg=2403.25, stdev=839.28, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (usec) : 750=8.33% lat (msec) : 100=8.33%, 250=66.67%, 500=8.33%, 750=8.33% cpu : usr=0.00%, sys=39.10%, ctx=204, 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=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=185167: Wed Sep 2 11:30:25 2026 read: IOPS=2, BW=2080KiB/s (2130kB/s)(5120KiB/2461msec) clat (usec): min=319, max=294617, avg=59278.99, stdev=131558.43 lat (usec): min=319, max=294619, avg=59279.89, stdev=131558.65 clat percentiles (usec): | 1.00th=[ 322], 5.00th=[ 322], 10.00th=[ 322], 20.00th=[ 322], | 30.00th=[ 367], 40.00th=[ 367], 50.00th=[ 506], 60.00th=[ 506], | 70.00th=[ 586], 80.00th=[ 586], 90.00th=[295699], 95.00th=[295699], | 99.00th=[295699], 99.50th=[295699], 99.90th=[295699], 99.95th=[295699], | 99.99th=[295699] bw ( KiB/s): min= 8175, max= 8175, per=100.00%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=2, BW=2913KiB/s (2983kB/s)(7168KiB/2461msec); 0 zone resets clat (msec): min=183, max=540, avg=304.43, stdev=115.85 lat (msec): min=183, max=540, avg=304.50, stdev=115.85 clat percentiles (msec): | 1.00th=[ 184], 5.00th=[ 184], 10.00th=[ 184], 20.00th=[ 218], | 30.00th=[ 266], 40.00th=[ 266], 50.00th=[ 296], 60.00th=[ 296], | 70.00th=[ 296], 80.00th=[ 330], 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= 1878, max= 4071, per=29.67%, avg=2492.00, stdev=1054.85, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (usec) : 500=16.67%, 750=16.67% lat (msec) : 250=16.67%, 500=41.67%, 750=8.33% cpu : usr=0.00%, sys=34.92%, ctx=356, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=6001KiB/s (6145kB/s), 600KiB/s-2985KiB/s (614kB/s-3057kB/s), io=20.0MiB (20.0MB), run=2401-3413msec WRITE: bw=8401KiB/s (8602kB/s), 2132KiB/s-3000KiB/s (2184kB/s-3072kB/s), io=28.0MiB (29.4MB), run=2401-3413msec rand-rw: (groupid=0, jobs=1): err= 0: pid=185168: Wed Sep 2 11:30:26 2026 read: IOPS=2, BW=2363KiB/s (2420kB/s)(7168KiB/3033msec) clat (msec): min=80, max=520, avg=199.73, stdev=150.30 lat (msec): min=80, max=520, avg=199.73, stdev=150.30 clat percentiles (msec): | 1.00th=[ 82], 5.00th=[ 82], 10.00th=[ 82], 20.00th=[ 101], | 30.00th=[ 122], 40.00th=[ 122], 50.00th=[ 155], 60.00th=[ 207], | 70.00th=[ 207], 80.00th=[ 215], 90.00th=[ 523], 95.00th=[ 523], | 99.00th=[ 523], 99.50th=[ 523], 99.90th=[ 523], 99.95th=[ 523], | 99.99th=[ 523] bw ( KiB/s): min= 4096, max= 5495, per=83.81%, avg=4795.50, stdev=989.24, samples=2 iops : min= 4, max= 5, avg= 4.50, stdev= 0.71, samples=2 write: IOPS=1, BW=1688KiB/s (1729kB/s)(5120KiB/3033msec); 0 zone resets clat (msec): min=122, max=450, avg=315.12, stdev=139.43 lat (msec): min=122, max=450, avg=315.22, stdev=139.44 clat percentiles (msec): | 1.00th=[ 123], 5.00th=[ 123], 10.00th=[ 123], 20.00th=[ 123], | 30.00th=[ 220], 40.00th=[ 220], 50.00th=[ 368], 60.00th=[ 368], | 70.00th=[ 418], 80.00th=[ 418], 90.00th=[ 451], 95.00th=[ 451], | 99.00th=[ 451], 99.50th=[ 451], 99.90th=[ 451], 99.95th=[ 451], | 99.99th=[ 451] bw ( KiB/s): min= 2031, max= 4087, per=33.98%, avg=2722.00, stdev=1182.16, samples=3 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=3 lat (msec) : 100=8.33%, 250=58.33%, 500=25.00%, 750=8.33% cpu : usr=0.07%, sys=14.22%, ctx=146, 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=185169: Wed Sep 2 11:30:26 2026 read: IOPS=0, BW=572KiB/s (586kB/s)(2048KiB/3579msec) clat (msec): min=99, max=289, avg=194.60, stdev=134.83 lat (msec): min=99, max=289, avg=194.60, stdev=134.83 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 100], 10.00th=[ 100], 20.00th=[ 100], | 30.00th=[ 100], 40.00th=[ 100], 50.00th=[ 100], 60.00th=[ 292], | 70.00th=[ 292], 80.00th=[ 292], 90.00th=[ 292], 95.00th=[ 292], | 99.00th=[ 292], 99.50th=[ 292], 99.90th=[ 292], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 2043, max= 2048, per=35.75%, avg=2045.50, stdev= 3.54, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 write: IOPS=2, BW=2861KiB/s (2930kB/s)(10.0MiB/3579msec); 0 zone resets clat (msec): min=44, max=622, avg=286.17, stdev=181.84 lat (msec): min=45, max=622, avg=286.42, stdev=181.85 clat percentiles (msec): | 1.00th=[ 45], 5.00th=[ 45], 10.00th=[ 45], 20.00th=[ 121], | 30.00th=[ 150], 40.00th=[ 215], 50.00th=[ 218], 60.00th=[ 218], | 70.00th=[ 355], 80.00th=[ 447], 90.00th=[ 472], 95.00th=[ 625], | 99.00th=[ 625], 99.50th=[ 625], 99.90th=[ 625], 99.95th=[ 625], | 99.99th=[ 625] bw ( KiB/s): min= 2031, max= 6131, per=45.90%, avg=3676.80, stdev=1711.82, samples=5 iops : min= 1, max= 5, avg= 2.80, stdev= 1.48, samples=5 lat (msec) : 50=8.33%, 100=8.33%, 250=41.67%, 500=33.33%, 750=8.33% cpu : usr=0.08%, sys=18.53%, ctx=211, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=185170: Wed Sep 2 11:30:26 2026 read: IOPS=1, BW=1780KiB/s (1823kB/s)(6144KiB/3452msec) clat (msec): min=47, max=322, avg=156.05, stdev=127.80 lat (msec): min=47, max=322, avg=156.06, stdev=127.80 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 48], 10.00th=[ 48], 20.00th=[ 52], | 30.00th=[ 52], 40.00th=[ 81], 50.00th=[ 81], 60.00th=[ 122], | 70.00th=[ 313], 80.00th=[ 313], 90.00th=[ 321], 95.00th=[ 321], | 99.00th=[ 321], 99.50th=[ 321], 99.90th=[ 321], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 2031, max= 2043, per=35.63%, avg=2039.00, stdev= 6.93, samples=3 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=3 write: IOPS=1, BW=1780KiB/s (1823kB/s)(6144KiB/3452msec); 0 zone resets clat (msec): min=91, max=701, avg=362.75, stdev=233.00 lat (msec): min=91, max=701, avg=362.83, stdev=233.00 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 92], 10.00th=[ 92], 20.00th=[ 188], | 30.00th=[ 188], 40.00th=[ 300], 50.00th=[ 300], 60.00th=[ 321], | 70.00th=[ 575], 80.00th=[ 575], 90.00th=[ 701], 95.00th=[ 701], | 99.00th=[ 701], 99.50th=[ 701], 99.90th=[ 701], 99.95th=[ 701], | 99.99th=[ 701] bw ( KiB/s): min= 2043, max= 4096, per=34.07%, avg=2729.00, stdev=1183.86, samples=3 iops : min= 1, max= 4, avg= 2.33, stdev= 1.53, samples=3 lat (msec) : 50=8.33%, 100=25.00%, 250=16.67%, 500=33.33%, 750=16.67% cpu : usr=0.03%, sys=11.24%, ctx=117, 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=185171: Wed Sep 2 11:30:26 2026 read: IOPS=1, BW=1721KiB/s (1762kB/s)(5120KiB/2975msec) clat (msec): min=76, max=187, avg=122.20, stdev=44.69 lat (msec): min=76, max=187, avg=122.20, stdev=44.69 clat percentiles (msec): | 1.00th=[ 77], 5.00th=[ 77], 10.00th=[ 77], 20.00th=[ 77], | 30.00th=[ 90], 40.00th=[ 90], 50.00th=[ 115], 60.00th=[ 115], | 70.00th=[ 144], 80.00th=[ 144], 90.00th=[ 188], 95.00th=[ 188], | 99.00th=[ 188], 99.50th=[ 188], 99.90th=[ 188], 99.95th=[ 188], | 99.99th=[ 188] bw ( KiB/s): min= 2031, max= 6131, per=71.32%, avg=4081.00, stdev=2899.14, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=2, BW=2409KiB/s (2467kB/s)(7168KiB/2975msec); 0 zone resets clat (msec): min=90, max=785, avg=317.98, stdev=249.02 lat (msec): min=90, max=785, avg=318.05, stdev=249.02 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 91], 10.00th=[ 91], 20.00th=[ 140], | 30.00th=[ 146], 40.00th=[ 146], 50.00th=[ 224], 60.00th=[ 351], | 70.00th=[ 351], 80.00th=[ 493], 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= 2048, max= 4063, per=33.95%, avg=2719.67, stdev=1163.36, samples=3 iops : min= 2, max= 3, avg= 2.33, stdev= 0.58, samples=3 lat (msec) : 100=25.00%, 250=50.00%, 500=16.67%, 1000=8.33% cpu : usr=0.00%, sys=15.40%, ctx=122, 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=5722KiB/s (5860kB/s), 572KiB/s-2363KiB/s (586kB/s-2420kB/s), io=20.0MiB (20.0MB), run=2975-3579msec WRITE: bw=8011KiB/s (8203kB/s), 1688KiB/s-2861KiB/s (1729kB/s-2930kB/s), io=28.0MiB (29.4MB), run=2975-3579msec 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=185177: Wed Sep 2 11:30:35 2026 read: IOPS=1, BW=7637KiB/s (7820kB/s)(12.0MiB/1609msec) clat (msec): min=486, max=560, avg=530.01, stdev=38.91 lat (msec): min=486, max=560, avg=530.01, stdev=38.91 clat percentiles (msec): | 1.00th=[ 485], 5.00th=[ 485], 10.00th=[ 485], 20.00th=[ 485], | 30.00th=[ 485], 40.00th=[ 542], 50.00th=[ 542], 60.00th=[ 542], | 70.00th=[ 558], 80.00th=[ 558], 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= 8078, max= 8143, per=100.00%, avg=8110.50, stdev=45.96, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 750=66.67% cpu : usr=0.06%, sys=30.97%, ctx=681, 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=185178: Wed Sep 2 11:30:35 2026 read: IOPS=0, BW=1778KiB/s (1820kB/s)(4096KiB/2304msec) clat (nsec): min=1734.7M, max=1734.7M, avg=1734720674.00, stdev= 0.00 lat (nsec): min=1734.7M, max=1734.7M, avg=1734723166.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1737], 5.00th=[ 1737], 10.00th=[ 1737], 20.00th=[ 1737], | 30.00th=[ 1737], 40.00th=[ 1737], 50.00th=[ 1737], 60.00th=[ 1737], | 70.00th=[ 1737], 80.00th=[ 1737], 90.00th=[ 1737], 95.00th=[ 1737], | 99.00th=[ 1737], 99.50th=[ 1737], 99.90th=[ 1737], 99.95th=[ 1737], | 99.99th=[ 1737] bw ( KiB/s): min= 8047, max= 8047, per=100.00%, avg=8047.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3556KiB/s (3641kB/s)(8192KiB/2304msec); 0 zone resets clat (msec): min=247, max=295, avg=271.65, stdev=33.59 lat (msec): min=248, max=296, avg=272.59, stdev=34.49 clat percentiles (msec): | 1.00th=[ 249], 5.00th=[ 249], 10.00th=[ 249], 20.00th=[ 249], | 30.00th=[ 249], 40.00th=[ 249], 50.00th=[ 249], 60.00th=[ 296], | 70.00th=[ 296], 80.00th=[ 296], 90.00th=[ 296], 95.00th=[ 296], | 99.00th=[ 296], 99.50th=[ 296], 99.90th=[ 296], 99.95th=[ 296], | 99.99th=[ 296] lat (msec) : 250=33.33%, 500=33.33%, 2000=33.33% cpu : usr=0.04%, sys=11.59%, ctx=396, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=185179: Wed Sep 2 11:30:35 2026 write: IOPS=1, BW=6696KiB/s (6857kB/s)(12.0MiB/1835msec); 0 zone resets clat (msec): min=147, max=946, avg=597.85, stdev=409.29 lat (msec): min=147, max=947, avg=598.29, stdev=409.16 clat percentiles (msec): | 1.00th=[ 148], 5.00th=[ 148], 10.00th=[ 148], 20.00th=[ 148], | 30.00th=[ 148], 40.00th=[ 701], 50.00th=[ 701], 60.00th=[ 701], | 70.00th=[ 944], 80.00th=[ 944], 90.00th=[ 944], 95.00th=[ 944], | 99.00th=[ 944], 99.50th=[ 944], 99.90th=[ 944], 99.95th=[ 944], | 99.99th=[ 944] bw ( KiB/s): min= 8078, max= 8078, per=63.46%, avg=8078.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 750=33.33%, 1000=33.33% cpu : usr=0.16%, sys=10.09%, ctx=71, majf=0, minf=7 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=185180: Wed Sep 2 11:30:35 2026 write: IOPS=1, BW=4774KiB/s (4888kB/s)(12.0MiB/2574msec); 0 zone resets clat (msec): min=303, max=1940, avg=852.67, stdev=942.28 lat (msec): min=304, max=1941, avg=853.17, stdev=942.46 clat percentiles (msec): | 1.00th=[ 305], 5.00th=[ 305], 10.00th=[ 305], 20.00th=[ 305], | 30.00th=[ 305], 40.00th=[ 313], 50.00th=[ 313], 60.00th=[ 313], | 70.00th=[ 1938], 80.00th=[ 1938], 90.00th=[ 1938], 95.00th=[ 1938], | 99.00th=[ 1938], 99.50th=[ 1938], 99.90th=[ 1938], 99.95th=[ 1938], | 99.99th=[ 1938] bw ( KiB/s): min=10995, max=10995, per=86.37%, avg=10995.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 500=66.67%, 2000=33.33% cpu : usr=0.00%, sys=6.68%, ctx=62, 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=7111KiB/s (7282kB/s), 1778KiB/s-7637KiB/s (1820kB/s-7820kB/s), io=16.0MiB (16.8MB), run=1609-2304msec WRITE: bw=12.4MiB/s (13.0MB/s), 3556KiB/s-6696KiB/s (3641kB/s-6857kB/s), io=32.0MiB (33.6MB), run=1835-2574msec rand-rw: (groupid=0, jobs=1): err= 0: pid=185182: Wed Sep 2 11:30:35 2026 read: IOPS=1, BW=5107KiB/s (5230kB/s)(12.0MiB/2406msec) clat (msec): min=215, max=1916, avg=801.45, stdev=966.39 lat (msec): min=215, max=1916, avg=801.45, stdev=966.39 clat percentiles (msec): | 1.00th=[ 215], 5.00th=[ 215], 10.00th=[ 215], 20.00th=[ 215], | 30.00th=[ 215], 40.00th=[ 271], 50.00th=[ 271], 60.00th=[ 271], | 70.00th=[ 1921], 80.00th=[ 1921], 90.00th=[ 1921], 95.00th=[ 1921], | 99.00th=[ 1921], 99.50th=[ 1921], 99.90th=[ 1921], 99.95th=[ 1921], | 99.99th=[ 1921] bw ( KiB/s): min= 7937, max= 7937, per=100.00%, avg=7937.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 500=33.33%, 2000=33.33% cpu : usr=0.00%, sys=6.57%, ctx=74, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=185183: Wed Sep 2 11:30:35 2026 read: IOPS=0, BW=1720KiB/s (1762kB/s)(4096KiB/2381msec) clat (nsec): min=1661.9M, max=1661.9M, avg=1661931780.00, stdev= 0.00 lat (nsec): min=1661.9M, max=1661.9M, avg=1661933583.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1670], 5.00th=[ 1670], 10.00th=[ 1670], 20.00th=[ 1670], | 30.00th=[ 1670], 40.00th=[ 1670], 50.00th=[ 1670], 60.00th=[ 1670], | 70.00th=[ 1670], 80.00th=[ 1670], 90.00th=[ 1670], 95.00th=[ 1670], | 99.00th=[ 1670], 99.50th=[ 1670], 99.90th=[ 1670], 99.95th=[ 1670], | 99.99th=[ 1670] bw ( KiB/s): min= 7937, max= 7937, per=100.00%, avg=7937.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3441KiB/s (3523kB/s)(8192KiB/2381msec); 0 zone resets clat (msec): min=275, max=440, avg=358.03, stdev=117.14 lat (msec): min=275, max=441, avg=358.53, stdev=117.21 clat percentiles (msec): | 1.00th=[ 275], 5.00th=[ 275], 10.00th=[ 275], 20.00th=[ 275], | 30.00th=[ 275], 40.00th=[ 275], 50.00th=[ 275], 60.00th=[ 443], | 70.00th=[ 443], 80.00th=[ 443], 90.00th=[ 443], 95.00th=[ 443], | 99.00th=[ 443], 99.50th=[ 443], 99.90th=[ 443], 99.95th=[ 443], | 99.99th=[ 443] lat (msec) : 500=66.67%, 2000=33.33% cpu : usr=0.08%, sys=7.18%, ctx=67, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=185184: Wed Sep 2 11:30:35 2026 write: IOPS=1, BW=6495KiB/s (6651kB/s)(12.0MiB/1892msec); 0 zone resets clat (msec): min=195, max=1462, avg=624.85, stdev=725.53 lat (msec): min=195, max=1462, avg=625.16, stdev=725.60 clat percentiles (msec): | 1.00th=[ 197], 5.00th=[ 197], 10.00th=[ 197], 20.00th=[ 197], | 30.00th=[ 197], 40.00th=[ 218], 50.00th=[ 218], 60.00th=[ 218], | 70.00th=[ 1469], 80.00th=[ 1469], 90.00th=[ 1469], 95.00th=[ 1469], | 99.00th=[ 1469], 99.50th=[ 1469], 99.90th=[ 1469], 99.95th=[ 1469], | 99.99th=[ 1469] bw ( KiB/s): min= 8159, max= 8159, per=61.43%, avg=8159.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=66.67%, 2000=33.33% cpu : usr=0.00%, sys=9.04%, ctx=58, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=185185: Wed Sep 2 11:30:35 2026 write: IOPS=1, BW=4981KiB/s (5100kB/s)(12.0MiB/2467msec); 0 zone resets clat (msec): min=256, max=1614, avg=807.22, stdev=714.11 lat (msec): min=257, max=1614, avg=807.58, stdev=714.11 clat percentiles (msec): | 1.00th=[ 257], 5.00th=[ 257], 10.00th=[ 257], 20.00th=[ 257], | 30.00th=[ 257], 40.00th=[ 550], 50.00th=[ 550], 60.00th=[ 550], | 70.00th=[ 1620], 80.00th=[ 1620], 90.00th=[ 1620], 95.00th=[ 1620], | 99.00th=[ 1620], 99.50th=[ 1620], 99.90th=[ 1620], 99.95th=[ 1620], | 99.99th=[ 1620] bw ( KiB/s): min= 6360, max= 8047, per=54.24%, avg=7203.50, stdev=1192.89, 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=10.71%, ctx=54, 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=6810KiB/s (6973kB/s), 1720KiB/s-5107KiB/s (1762kB/s-5230kB/s), io=16.0MiB (16.8MB), run=2381-2406msec WRITE: bw=12.0MiB/s (13.6MB/s), 3441KiB/s-6495KiB/s (3523kB/s-6651kB/s), io=32.0MiB (33.6MB), run=1892-2467msec