== sanity test 398b: DIO and buffer IO race ============== 02:07:29 (1761286049) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 5.52885 s, 9.1 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=158058: Fri Oct 24 02:09:12 2025 read: IOPS=17, BW=69.5KiB/s (71.2kB/s)(5992KiB/86226msec) clat (usec): min=107, max=351491, avg=27088.39, stdev=23261.92 lat (usec): min=107, max=351493, avg=27089.74, stdev=23261.95 clat percentiles (usec): | 1.00th=[ 135], 5.00th=[ 172], 10.00th=[ 367], 20.00th=[ 12125], | 30.00th=[ 16057], 40.00th=[ 19006], 50.00th=[ 22414], 60.00th=[ 27395], | 70.00th=[ 32637], 80.00th=[ 41157], 90.00th=[ 51643], 95.00th=[ 62129], | 99.00th=[ 93848], 99.50th=[154141], 99.90th=[244319], 99.95th=[350225], | 99.99th=[350225] bw ( KiB/s): min= 7, max= 176, per=24.87%, avg=68.88, stdev=28.28, samples=170 iops : min= 1, max= 44, avg=16.65, stdev= 7.10, samples=170 write: IOPS=18, BW=73.0KiB/s (74.8kB/s)(6296KiB/86226msec); 0 zone resets clat (usec): min=865, max=510112, avg=28757.70, stdev=31896.08 lat (usec): min=866, max=510113, avg=28759.24, stdev=31896.12 clat percentiles (usec): | 1.00th=[ 1020], 5.00th=[ 1172], 10.00th=[ 1450], 20.00th=[ 2900], | 30.00th=[ 6063], 40.00th=[ 14222], 50.00th=[ 21103], 60.00th=[ 28443], | 70.00th=[ 36439], 80.00th=[ 48497], 90.00th=[ 67634], 95.00th=[ 84411], | 99.00th=[131597], 99.50th=[175113], 99.90th=[227541], 99.95th=[509608], | 99.99th=[509608] bw ( KiB/s): min= 8, max= 190, per=25.04%, avg=72.61, stdev=27.65, samples=170 iops : min= 2, max= 47, avg=17.58, stdev= 6.92, samples=170 lat (usec) : 250=3.97%, 500=1.33%, 750=0.33%, 1000=0.46% lat (msec) : 2=7.32%, 4=5.14%, 10=7.19%, 20=19.66%, 50=39.62% lat (msec) : 100=13.18%, 250=1.73%, 500=0.03%, 750=0.03% cpu : usr=0.11%, sys=9.40%, ctx=6670, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=158059: Fri Oct 24 02:09:12 2025 read: IOPS=17, BW=68.7KiB/s (70.4kB/s)(5940KiB/86437msec) clat (usec): min=92, max=418590, avg=26206.22, stdev=21214.92 lat (usec): min=93, max=418592, avg=26207.52, stdev=21214.88 clat percentiles (usec): | 1.00th=[ 135], 5.00th=[ 176], 10.00th=[ 330], 20.00th=[ 12387], | 30.00th=[ 16319], 40.00th=[ 19530], 50.00th=[ 22414], 60.00th=[ 26346], | 70.00th=[ 31589], 80.00th=[ 40109], 90.00th=[ 51119], 95.00th=[ 60031], | 99.00th=[ 84411], 99.50th=[ 93848], 99.90th=[141558], 99.95th=[417334], | 99.99th=[417334] bw ( KiB/s): min= 15, max= 168, per=24.54%, avg=67.98, stdev=26.47, samples=170 iops : min= 3, max= 42, avg=16.42, stdev= 6.63, samples=170 write: IOPS=18, BW=73.4KiB/s (75.2kB/s)(6348KiB/86437msec); 0 zone resets clat (usec): min=917, max=512568, avg=29667.52, stdev=32048.22 lat (usec): min=918, max=512569, avg=29670.81, stdev=32051.19 clat percentiles (usec): | 1.00th=[ 1004], 5.00th=[ 1139], 10.00th=[ 1434], 20.00th=[ 2999], | 30.00th=[ 6587], 40.00th=[ 14222], 50.00th=[ 22414], 60.00th=[ 29230], | 70.00th=[ 38536], 80.00th=[ 50594], 90.00th=[ 69731], 95.00th=[ 86508], | 99.00th=[127402], 99.50th=[143655], 99.90th=[238027], 99.95th=[513803], | 99.99th=[513803] bw ( KiB/s): min= 16, max= 143, per=24.92%, avg=72.28, stdev=25.68, samples=170 iops : min= 4, max= 35, avg=17.49, stdev= 6.47, samples=170 lat (usec) : 100=0.03%, 250=3.87%, 500=1.53%, 750=0.13%, 1000=0.62% lat (msec) : 2=7.03%, 4=5.37%, 10=7.13%, 20=18.65%, 50=39.68% lat (msec) : 100=14.36%, 250=1.53%, 500=0.03%, 750=0.03% cpu : usr=0.12%, sys=9.30%, ctx=6843, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=158060: Fri Oct 24 02:09:12 2025 read: IOPS=17, BW=69.8KiB/s (71.5kB/s)(6028KiB/86356msec) clat (usec): min=99, max=552483, avg=26327.70, stdev=24337.27 lat (usec): min=99, max=552484, avg=26335.39, stdev=24331.77 clat percentiles (usec): | 1.00th=[ 131], 5.00th=[ 174], 10.00th=[ 330], 20.00th=[ 12125], | 30.00th=[ 15533], 40.00th=[ 19006], 50.00th=[ 22414], 60.00th=[ 26608], | 70.00th=[ 31589], 80.00th=[ 39060], 90.00th=[ 50070], 95.00th=[ 61604], | 99.00th=[ 92799], 99.50th=[117965], 99.90th=[233833], 99.95th=[549454], | 99.99th=[549454] bw ( KiB/s): min= 15, max= 152, per=25.17%, avg=69.72, stdev=26.31, samples=169 iops : min= 3, max= 38, avg=16.86, stdev= 6.64, samples=169 write: IOPS=18, BW=72.5KiB/s (74.2kB/s)(6260KiB/86356msec); 0 zone resets clat (usec): min=917, max=206292, avg=29562.43, stdev=28348.45 lat (usec): min=918, max=206293, avg=29564.49, stdev=28348.79 clat percentiles (usec): | 1.00th=[ 1045], 5.00th=[ 1172], 10.00th=[ 1500], 20.00th=[ 3261], | 30.00th=[ 7373], 40.00th=[ 16057], 50.00th=[ 24249], 60.00th=[ 31327], | 70.00th=[ 39584], 80.00th=[ 50070], 90.00th=[ 67634], 95.00th=[ 85459], | 99.00th=[115868], 99.50th=[147850], 99.90th=[198181], 99.95th=[206570], | 99.99th=[206570] bw ( KiB/s): min= 23, max= 152, per=24.77%, avg=71.82, stdev=25.61, samples=170 iops : min= 5, max= 38, avg=17.39, stdev= 6.43, samples=170 lat (usec) : 100=0.03%, 250=4.13%, 500=1.50%, 750=0.20%, 1000=0.49% lat (msec) : 2=7.26%, 4=4.43%, 10=6.35%, 20=19.82%, 50=40.72% lat (msec) : 100=13.61%, 250=1.43%, 750=0.03% cpu : usr=0.10%, sys=9.35%, ctx=6816, 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=158061: Fri Oct 24 02:09:12 2025 read: IOPS=17, BW=71.6KiB/s (73.3kB/s)(6052KiB/84571msec) clat (usec): min=82, max=256854, avg=26342.84, stdev=19470.98 lat (usec): min=82, max=256855, avg=26346.45, stdev=19470.08 clat percentiles (usec): | 1.00th=[ 131], 5.00th=[ 176], 10.00th=[ 367], 20.00th=[ 12780], | 30.00th=[ 16319], 40.00th=[ 19268], 50.00th=[ 22414], 60.00th=[ 26608], | 70.00th=[ 31851], 80.00th=[ 40109], 90.00th=[ 50594], 95.00th=[ 61604], | 99.00th=[ 85459], 99.50th=[ 95945], 99.90th=[135267], 99.95th=[256902], | 99.99th=[256902] bw ( KiB/s): min= 7, max= 143, per=25.71%, avg=71.20, stdev=23.85, samples=167 iops : min= 1, max= 35, avg=17.23, stdev= 6.02, samples=167 write: IOPS=18, BW=73.7KiB/s (75.5kB/s)(6236KiB/84571msec); 0 zone resets clat (usec): min=693, max=424888, avg=28422.51, stdev=30056.32 lat (usec): min=693, max=424889, avg=28424.23, stdev=30056.48 clat percentiles (usec): | 1.00th=[ 988], 5.00th=[ 1156], 10.00th=[ 1483], 20.00th=[ 2999], | 30.00th=[ 6128], 40.00th=[ 14877], 50.00th=[ 22152], 60.00th=[ 28967], | 70.00th=[ 35914], 80.00th=[ 47449], 90.00th=[ 64750], 95.00th=[ 82314], | 99.00th=[125305], 99.50th=[152044], 99.90th=[214959], 99.95th=[425722], | 99.99th=[425722] bw ( KiB/s): min= 15, max= 152, per=25.28%, avg=73.31, stdev=25.61, samples=167 iops : min= 3, max= 38, avg=17.75, stdev= 6.40, samples=167 lat (usec) : 100=0.03%, 250=3.84%, 500=1.33%, 750=0.26%, 1000=0.75% lat (msec) : 2=6.51%, 4=5.08%, 10=7.06%, 20=19.95%, 50=40.79% lat (msec) : 100=12.86%, 250=1.46%, 500=0.07% cpu : usr=0.08%, sys=9.37%, ctx=6645, 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=278KiB/s (284kB/s), 68.7KiB/s-71.6KiB/s (70.4kB/s-73.3kB/s), io=23.4MiB (24.6MB), run=84571-86437msec WRITE: bw=291KiB/s (298kB/s), 72.5KiB/s-73.7KiB/s (74.2kB/s-75.5kB/s), io=24.6MiB (25.7MB), run=84571-86437msec rand-rw: (groupid=0, jobs=1): err= 0: pid=158063: Fri Oct 24 02:11:11 2025 read: IOPS=7, BW=29.6KiB/s (30.3kB/s)(5992KiB/202434msec) clat (msec): min=5, max=470, avg=29.28, stdev=25.64 lat (msec): min=5, max=470, avg=29.28, stdev=25.64 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 13], | 30.00th=[ 15], 40.00th=[ 19], 50.00th=[ 24], 60.00th=[ 30], | 70.00th=[ 35], 80.00th=[ 42], 90.00th=[ 52], 95.00th=[ 65], | 99.00th=[ 106], 99.50th=[ 171], 99.90th=[ 279], 99.95th=[ 472], | 99.99th=[ 472] bw ( KiB/s): min= 7, max= 112, per=26.37%, avg=30.85, stdev=18.93, samples=379 iops : min= 1, max= 28, avg= 7.16, stdev= 4.80, samples=379 write: IOPS=7, BW=31.1KiB/s (31.8kB/s)(6296KiB/202434msec); 0 zone resets clat (msec): min=35, max=516, avg=100.67, stdev=45.31 lat (msec): min=35, max=516, avg=100.67, stdev=45.31 clat percentiles (msec): | 1.00th=[ 44], 5.00th=[ 52], 10.00th=[ 58], 20.00th=[ 67], | 30.00th=[ 74], 40.00th=[ 81], 50.00th=[ 90], 60.00th=[ 100], | 70.00th=[ 112], 80.00th=[ 130], 90.00th=[ 161], 95.00th=[ 186], | 99.00th=[ 247], 99.50th=[ 266], 99.90th=[ 460], 99.95th=[ 518], | 99.99th=[ 518] bw ( KiB/s): min= 7, max= 63, per=24.96%, avg=30.70, stdev=11.87, samples=400 iops : min= 1, max= 15, avg= 7.12, stdev= 3.06, samples=400 lat (msec) : 10=5.66%, 20=15.49%, 50=24.19%, 100=33.98%, 250=20.08% lat (msec) : 500=0.55%, 750=0.03% cpu : usr=0.05%, sys=2.03%, ctx=6086, 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=158064: Fri Oct 24 02:11:11 2025 read: IOPS=7, BW=29.1KiB/s (29.8kB/s)(5940KiB/204306msec) clat (msec): min=5, max=409, avg=29.22, stdev=24.65 lat (msec): min=5, max=409, avg=29.22, stdev=24.65 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 13], | 30.00th=[ 15], 40.00th=[ 19], 50.00th=[ 25], 60.00th=[ 30], | 70.00th=[ 36], 80.00th=[ 42], 90.00th=[ 52], 95.00th=[ 65], | 99.00th=[ 118], 99.50th=[ 171], 99.90th=[ 241], 99.95th=[ 409], | 99.99th=[ 409] bw ( KiB/s): min= 6, max= 103, per=26.10%, avg=30.53, stdev=19.67, samples=379 iops : min= 1, max= 25, avg= 7.07, stdev= 4.96, samples=379 write: IOPS=7, BW=31.1KiB/s (31.8kB/s)(6348KiB/204306msec); 0 zone resets clat (msec): min=33, max=513, avg=101.31, stdev=46.47 lat (msec): min=33, max=513, avg=101.32, stdev=46.47 clat percentiles (msec): | 1.00th=[ 43], 5.00th=[ 53], 10.00th=[ 58], 20.00th=[ 67], | 30.00th=[ 73], 40.00th=[ 81], 50.00th=[ 90], 60.00th=[ 100], | 70.00th=[ 111], 80.00th=[ 130], 90.00th=[ 165], 95.00th=[ 190], | 99.00th=[ 253], 99.50th=[ 275], 99.90th=[ 447], 99.95th=[ 514], | 99.99th=[ 514] bw ( KiB/s): min= 6, max= 56, per=24.85%, avg=30.56, stdev=11.59, samples=404 iops : min= 1, max= 14, avg= 7.08, stdev= 2.99, samples=404 lat (msec) : 10=5.31%, 20=15.36%, 50=24.28%, 100=34.11%, 250=20.35% lat (msec) : 500=0.55%, 750=0.03% cpu : usr=0.06%, sys=2.03%, ctx=6058, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=158065: Fri Oct 24 02:11:11 2025 read: IOPS=7, BW=29.6KiB/s (30.3kB/s)(6028KiB/203571msec) clat (msec): min=5, max=277, avg=30.39, stdev=24.01 lat (msec): min=5, max=277, avg=30.40, stdev=24.01 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 20], 50.00th=[ 27], 60.00th=[ 32], | 70.00th=[ 37], 80.00th=[ 43], 90.00th=[ 56], 95.00th=[ 69], | 99.00th=[ 108], 99.50th=[ 157], 99.90th=[ 255], 99.95th=[ 279], | 99.99th=[ 279] bw ( KiB/s): min= 7, max= 96, per=26.23%, avg=30.69, stdev=17.82, samples=383 iops : min= 1, max= 24, avg= 7.11, stdev= 4.49, samples=383 write: IOPS=7, BW=30.8KiB/s (31.5kB/s)(6260KiB/203571msec); 0 zone resets clat (msec): min=34, max=560, avg=100.75, stdev=47.06 lat (msec): min=34, max=560, avg=100.75, stdev=47.06 clat percentiles (msec): | 1.00th=[ 43], 5.00th=[ 52], 10.00th=[ 58], 20.00th=[ 66], | 30.00th=[ 73], 40.00th=[ 81], 50.00th=[ 89], 60.00th=[ 97], | 70.00th=[ 110], 80.00th=[ 129], 90.00th=[ 163], 95.00th=[ 194], | 99.00th=[ 247], 99.50th=[ 296], 99.90th=[ 460], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 6, max= 64, per=24.52%, avg=30.16, stdev=12.36, samples=404 iops : min= 1, max= 16, avg= 6.98, stdev= 3.18, samples=404 lat (msec) : 10=5.73%, 20=13.96%, 50=24.90%, 100=35.38%, 250=19.56% lat (msec) : 500=0.42%, 750=0.03% cpu : usr=0.06%, sys=2.06%, ctx=6123, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=158066: Fri Oct 24 02:11:11 2025 read: IOPS=7, BW=29.8KiB/s (30.5kB/s)(6052KiB/203369msec) clat (msec): min=5, max=461, avg=29.27, stdev=23.67 lat (msec): min=5, max=461, avg=29.27, stdev=23.67 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 12], | 30.00th=[ 15], 40.00th=[ 19], 50.00th=[ 25], 60.00th=[ 31], | 70.00th=[ 36], 80.00th=[ 43], 90.00th=[ 53], 95.00th=[ 66], | 99.00th=[ 105], 99.50th=[ 134], 99.90th=[ 255], 99.95th=[ 464], | 99.99th=[ 464] bw ( KiB/s): min= 7, max= 95, per=27.08%, avg=31.69, stdev=18.54, samples=373 iops : min= 1, max= 23, avg= 7.37, stdev= 4.68, samples=373 write: IOPS=7, BW=30.7KiB/s (31.4kB/s)(6236KiB/203369msec); 0 zone resets clat (msec): min=32, max=563, avg=101.98, stdev=46.61 lat (msec): min=32, max=563, avg=101.98, stdev=46.61 clat percentiles (msec): | 1.00th=[ 43], 5.00th=[ 53], 10.00th=[ 59], 20.00th=[ 68], | 30.00th=[ 75], 40.00th=[ 82], 50.00th=[ 90], 60.00th=[ 101], | 70.00th=[ 112], 80.00th=[ 130], 90.00th=[ 163], 95.00th=[ 192], | 99.00th=[ 257], 99.50th=[ 296], 99.90th=[ 368], 99.95th=[ 567], | 99.99th=[ 567] bw ( KiB/s): min= 6, max= 64, per=24.54%, avg=30.18, stdev=11.83, samples=403 iops : min= 1, max= 16, avg= 6.99, stdev= 3.05, samples=403 lat (msec) : 10=5.86%, 20=14.91%, 50=24.58%, 100=33.82%, 250=20.15% lat (msec) : 500=0.65%, 750=0.03% cpu : usr=0.06%, sys=2.05%, ctx=6043, 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=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=118KiB/s (120kB/s), 29.1KiB/s-29.8KiB/s (29.8kB/s-30.5kB/s), io=23.4MiB (24.6MB), run=202434-204306msec WRITE: bw=123KiB/s (126kB/s), 30.7KiB/s-31.1KiB/s (31.4kB/s-31.8kB/s), io=24.6MiB (25.7MB), run=202434-204306msec 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=158108: Fri Oct 24 02:11:37 2025 read: IOPS=20, BW=327KiB/s (334kB/s)(5920KiB/18131msec) clat (usec): min=99, max=109867, avg=22202.66, stdev=18922.74 lat (usec): min=99, max=109868, avg=22204.00, stdev=18922.78 clat percentiles (usec): | 1.00th=[ 108], 5.00th=[ 141], 10.00th=[ 161], 20.00th=[ 262], | 30.00th=[ 8356], 40.00th=[ 16712], 50.00th=[ 21103], 60.00th=[ 26084], | 70.00th=[ 31851], 80.00th=[ 38536], 90.00th=[ 46400], 95.00th=[ 55313], | 99.00th=[ 76022], 99.50th=[ 81265], 99.90th=[109577], 99.95th=[109577], | 99.99th=[109577] bw ( KiB/s): min= 126, max= 541, per=27.09%, avg=337.29, stdev=109.80, samples=34 iops : min= 7, max= 33, avg=20.35, stdev= 6.88, samples=34 write: IOPS=21, BW=351KiB/s (360kB/s)(6368KiB/18131msec); 0 zone resets clat (usec): min=1285, max=253953, avg=24451.03, stdev=31135.22 lat (usec): min=1287, max=253954, avg=24453.25, stdev=31135.42 clat percentiles (usec): | 1.00th=[ 1385], 5.00th=[ 1565], 10.00th=[ 1762], 20.00th=[ 2999], | 30.00th=[ 4424], 40.00th=[ 7635], 50.00th=[ 12518], 60.00th=[ 22414], | 70.00th=[ 31065], 80.00th=[ 42730], 90.00th=[ 55837], 95.00th=[ 69731], | 99.00th=[147850], 99.50th=[235930], 99.90th=[254804], 99.95th=[254804], | 99.99th=[254804] bw ( KiB/s): min= 27, max= 605, per=27.04%, avg=354.23, stdev=126.63, samples=35 iops : min= 1, max= 37, avg=21.43, stdev= 7.96, samples=35 lat (usec) : 100=0.13%, 250=9.24%, 500=3.26%, 750=0.52%, 1000=0.13% lat (msec) : 2=6.77%, 4=8.98%, 10=9.24%, 20=14.58%, 50=37.11% lat (msec) : 100=8.46%, 250=1.43%, 500=0.13% cpu : usr=0.14%, sys=9.92%, ctx=1406, 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=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=158109: Fri Oct 24 02:11:37 2025 read: IOPS=18, BW=300KiB/s (307kB/s)(5744KiB/19139msec) clat (usec): min=112, max=167517, avg=26082.87, stdev=21043.88 lat (usec): min=113, max=167517, avg=26084.10, stdev=21043.80 clat percentiles (usec): | 1.00th=[ 130], 5.00th=[ 153], 10.00th=[ 178], 20.00th=[ 611], | 30.00th=[ 16319], 40.00th=[ 21103], 50.00th=[ 25297], 60.00th=[ 29754], | 70.00th=[ 34341], 80.00th=[ 41157], 90.00th=[ 51119], 95.00th=[ 60031], | 99.00th=[ 87557], 99.50th=[113771], 99.90th=[166724], 99.95th=[166724], | 99.99th=[166724] bw ( KiB/s): min= 111, max= 542, per=24.25%, avg=301.92, stdev=104.24, samples=37 iops : min= 6, max= 33, avg=18.14, stdev= 6.49, samples=37 write: IOPS=21, BW=342KiB/s (350kB/s)(6544KiB/19139msec); 0 zone resets clat (usec): min=1261, max=155039, avg=23628.40, stdev=25236.20 lat (usec): min=1262, max=155041, avg=23630.47, stdev=25236.15 clat percentiles (usec): | 1.00th=[ 1401], 5.00th=[ 1565], 10.00th=[ 1762], 20.00th=[ 3032], | 30.00th=[ 5669], 40.00th=[ 9110], 50.00th=[ 14091], 60.00th=[ 22938], | 70.00th=[ 32113], 80.00th=[ 42206], 90.00th=[ 56886], 95.00th=[ 67634], | 99.00th=[115868], 99.50th=[116917], 99.90th=[154141], 99.95th=[154141], | 99.99th=[154141] bw ( KiB/s): min= 126, max= 541, per=26.11%, avg=342.00, stdev=98.43, samples=37 iops : min= 7, max= 33, avg=20.68, stdev= 6.21, samples=37 lat (usec) : 250=6.90%, 500=2.08%, 750=0.91%, 1000=0.13% lat (msec) : 2=7.81%, 4=6.25%, 10=10.03%, 20=13.41%, 50=40.10% lat (msec) : 100=11.07%, 250=1.30% cpu : usr=0.09%, sys=10.29%, ctx=1442, 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=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=158110: Fri Oct 24 02:11:37 2025 read: IOPS=20, BW=325KiB/s (333kB/s)(6256KiB/19230msec) clat (usec): min=105, max=145749, avg=25649.05, stdev=22978.03 lat (usec): min=106, max=145750, avg=25650.41, stdev=22978.08 clat percentiles (usec): | 1.00th=[ 123], 5.00th=[ 157], 10.00th=[ 178], 20.00th=[ 424], | 30.00th=[ 13173], 40.00th=[ 19268], 50.00th=[ 23725], 60.00th=[ 29230], | 70.00th=[ 33817], 80.00th=[ 40633], 90.00th=[ 51643], 95.00th=[ 65274], | 99.00th=[114820], 99.50th=[139461], 99.90th=[145753], 99.95th=[145753], | 99.99th=[145753] bw ( KiB/s): min= 158, max= 573, per=26.44%, avg=329.14, stdev=91.25, samples=37 iops : min= 9, max= 35, avg=19.86, stdev= 5.76, samples=37 write: IOPS=19, BW=314KiB/s (321kB/s)(6032KiB/19230msec); 0 zone resets clat (usec): min=1261, max=161479, avg=24235.79, stdev=27349.20 lat (usec): min=1263, max=161480, avg=24238.09, stdev=27349.18 clat percentiles (usec): | 1.00th=[ 1369], 5.00th=[ 1565], 10.00th=[ 1729], 20.00th=[ 2376], | 30.00th=[ 4948], 40.00th=[ 8848], 50.00th=[ 14222], 60.00th=[ 21627], | 70.00th=[ 29492], 80.00th=[ 42206], 90.00th=[ 62653], 95.00th=[ 82314], | 99.00th=[119014], 99.50th=[131597], 99.90th=[160433], 99.95th=[160433], | 99.99th=[160433] bw ( KiB/s): min= 123, max= 798, per=23.89%, avg=313.00, stdev=134.95, samples=37 iops : min= 7, max= 49, avg=18.81, stdev= 8.43, samples=37 lat (usec) : 250=7.94%, 500=2.86%, 750=0.52%, 1000=0.52% lat (msec) : 2=7.55%, 4=7.55%, 10=8.59%, 20=14.45%, 50=37.11% lat (msec) : 100=10.68%, 250=2.21% cpu : usr=0.11%, sys=10.18%, ctx=1455, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=158111: Fri Oct 24 02:11:37 2025 read: IOPS=20, BW=324KiB/s (332kB/s)(6032KiB/18631msec) clat (usec): min=104, max=164526, avg=26107.86, stdev=22729.03 lat (usec): min=104, max=164526, avg=26142.06, stdev=22703.75 clat percentiles (usec): | 1.00th=[ 130], 5.00th=[ 147], 10.00th=[ 167], 20.00th=[ 310], | 30.00th=[ 15401], 40.00th=[ 20579], 50.00th=[ 25035], 60.00th=[ 29230], | 70.00th=[ 34866], 80.00th=[ 41157], 90.00th=[ 51643], 95.00th=[ 62129], | 99.00th=[ 94897], 99.50th=[156238], 99.90th=[164627], 99.95th=[164627], | 99.99th=[164627] bw ( KiB/s): min= 128, max= 478, per=25.87%, avg=322.14, stdev=91.46, samples=36 iops : min= 8, max= 29, avg=19.39, stdev= 5.66, samples=36 write: IOPS=20, BW=336KiB/s (344kB/s)(6256KiB/18631msec); 0 zone resets clat (usec): min=1322, max=212259, avg=22113.72, stdev=24099.37 lat (usec): min=1325, max=212261, avg=22115.83, stdev=24099.39 clat percentiles (usec): | 1.00th=[ 1385], 5.00th=[ 1582], 10.00th=[ 1745], 20.00th=[ 2638], | 30.00th=[ 5735], 40.00th=[ 9110], 50.00th=[ 12518], 60.00th=[ 19530], | 70.00th=[ 28705], 80.00th=[ 37487], 90.00th=[ 55313], 95.00th=[ 68682], | 99.00th=[102237], 99.50th=[106431], 99.90th=[212861], 99.95th=[212861], | 99.99th=[212861] bw ( KiB/s): min= 95, max= 658, per=25.48%, avg=333.83, stdev=113.64, samples=36 iops : min= 5, max= 41, avg=20.14, stdev= 7.14, samples=36 lat (usec) : 250=9.11%, 500=1.95%, 750=0.26% lat (msec) : 2=8.20%, 4=6.12%, 10=9.11%, 20=15.36%, 50=37.24% lat (msec) : 100=11.72%, 250=0.91% cpu : usr=0.09%, sys=10.06%, ctx=1428, majf=0, minf=18 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=1246KiB/s (1275kB/s), 300KiB/s-327KiB/s (307kB/s-334kB/s), io=23.4MiB (24.5MB), run=18131-19230msec WRITE: bw=1310KiB/s (1342kB/s), 314KiB/s-351KiB/s (321kB/s-360kB/s), io=24.6MiB (25.8MB), run=18131-19230msec rand-rw: (groupid=0, jobs=1): err= 0: pid=158112: Fri Oct 24 02:12:21 2025 read: IOPS=5, BW=95.1KiB/s (97.4kB/s)(5920KiB/62220msec) clat (msec): min=7, max=268, avg=32.33, stdev=27.57 lat (msec): min=7, max=268, avg=32.34, stdev=27.57 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 24], 60.00th=[ 29], | 70.00th=[ 37], 80.00th=[ 47], 90.00th=[ 62], 95.00th=[ 85], | 99.00th=[ 161], 99.50th=[ 184], 99.90th=[ 268], 99.95th=[ 268], | 99.99th=[ 268] bw ( KiB/s): min= 31, max= 377, per=26.68%, avg=101.93, stdev=58.05, samples=114 iops : min= 1, max= 23, avg= 5.63, stdev= 3.70, samples=114 write: IOPS=6, BW=102KiB/s (105kB/s)(6368KiB/62220msec); 0 zone resets clat (msec): min=52, max=313, avg=126.05, stdev=42.15 lat (msec): min=52, max=313, avg=126.05, stdev=42.15 clat percentiles (msec): | 1.00th=[ 63], 5.00th=[ 73], 10.00th=[ 81], 20.00th=[ 93], | 30.00th=[ 103], 40.00th=[ 111], 50.00th=[ 118], 60.00th=[ 130], | 70.00th=[ 140], 80.00th=[ 153], 90.00th=[ 180], 95.00th=[ 215], | 99.00th=[ 259], 99.50th=[ 284], 99.90th=[ 313], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 27, max= 160, per=25.55%, avg=102.71, stdev=30.74, samples=122 iops : min= 1, max= 10, avg= 5.68, stdev= 2.00, samples=122 lat (msec) : 10=2.73%, 20=17.06%, 50=20.31%, 100=21.61%, 250=37.11% lat (msec) : 500=1.17% cpu : usr=0.05%, sys=1.67%, ctx=1522, 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=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=158113: Fri Oct 24 02:12:21 2025 read: IOPS=5, BW=91.8KiB/s (94.0kB/s)(5744KiB/62560msec) clat (msec): min=7, max=180, avg=32.57, stdev=27.50 lat (msec): min=7, max=180, avg=32.57, stdev=27.50 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 23], 60.00th=[ 28], | 70.00th=[ 37], 80.00th=[ 49], 90.00th=[ 65], 95.00th=[ 92], | 99.00th=[ 159], 99.50th=[ 163], 99.90th=[ 182], 99.95th=[ 182], | 99.99th=[ 182] bw ( KiB/s): min= 27, max= 382, per=26.32%, avg=100.54, stdev=64.10, samples=113 iops : min= 1, max= 23, avg= 5.54, stdev= 4.10, samples=113 write: IOPS=6, BW=105KiB/s (107kB/s)(6544KiB/62560msec); 0 zone resets clat (msec): min=53, max=294, avg=123.88, stdev=41.21 lat (msec): min=53, max=294, avg=123.88, stdev=41.21 clat percentiles (msec): | 1.00th=[ 59], 5.00th=[ 68], 10.00th=[ 78], 20.00th=[ 88], | 30.00th=[ 99], 40.00th=[ 108], 50.00th=[ 117], 60.00th=[ 129], | 70.00th=[ 140], 80.00th=[ 155], 90.00th=[ 182], 95.00th=[ 201], | 99.00th=[ 259], 99.50th=[ 264], 99.90th=[ 296], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 31, max= 191, per=25.89%, avg=104.07, stdev=33.92, samples=124 iops : min= 1, max= 11, avg= 5.77, stdev= 2.20, samples=124 lat (msec) : 10=3.52%, 20=15.89%, 50=18.88%, 100=23.83%, 250=37.11% lat (msec) : 500=0.78% cpu : usr=0.05%, sys=1.72%, ctx=1512, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=158114: Fri Oct 24 02:12:21 2025 read: IOPS=6, BW=105KiB/s (107kB/s)(6256KiB/59768msec) clat (msec): min=6, max=165, avg=29.69, stdev=22.58 lat (msec): min=6, max=165, avg=29.70, stdev=22.58 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 19], 50.00th=[ 23], 60.00th=[ 27], | 70.00th=[ 33], 80.00th=[ 45], 90.00th=[ 58], 95.00th=[ 71], | 99.00th=[ 136], 99.50th=[ 142], 99.90th=[ 165], 99.95th=[ 165], | 99.99th=[ 165] bw ( KiB/s): min= 31, max= 319, per=29.22%, avg=111.60, stdev=63.65, samples=111 iops : min= 1, max= 19, avg= 6.25, stdev= 4.07, samples=111 write: IOPS=6, BW=101KiB/s (103kB/s)(6032KiB/59768msec); 0 zone resets clat (msec): min=51, max=309, avg=127.29, stdev=42.24 lat (msec): min=51, max=309, avg=127.29, stdev=42.24 clat percentiles (msec): | 1.00th=[ 58], 5.00th=[ 75], 10.00th=[ 82], 20.00th=[ 92], | 30.00th=[ 102], 40.00th=[ 111], 50.00th=[ 121], 60.00th=[ 131], | 70.00th=[ 142], 80.00th=[ 157], 90.00th=[ 186], 95.00th=[ 203], | 99.00th=[ 271], 99.50th=[ 284], 99.90th=[ 309], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 30, max= 160, per=25.15%, avg=101.10, stdev=30.70, samples=117 iops : min= 1, max= 10, avg= 5.59, stdev= 2.00, samples=117 lat (msec) : 10=2.86%, 20=19.53%, 50=20.44%, 100=21.61%, 250=34.77% lat (msec) : 500=0.78% cpu : usr=0.05%, sys=1.68%, ctx=1458, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=158115: Fri Oct 24 02:12:21 2025 read: IOPS=6, BW=97.6KiB/s (99.9kB/s)(6032KiB/61819msec) clat (msec): min=6, max=163, avg=31.64, stdev=24.02 lat (msec): min=6, max=163, avg=31.64, stdev=24.02 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 15], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 23], 60.00th=[ 28], | 70.00th=[ 37], 80.00th=[ 47], 90.00th=[ 60], 95.00th=[ 74], | 99.00th=[ 126], 99.50th=[ 150], 99.90th=[ 165], 99.95th=[ 165], | 99.99th=[ 165] bw ( KiB/s): min= 31, max= 319, per=27.27%, avg=104.16, stdev=64.25, samples=113 iops : min= 1, max= 19, avg= 5.77, stdev= 4.04, samples=113 write: IOPS=6, BW=101KiB/s (104kB/s)(6256KiB/61819msec); 0 zone resets clat (msec): min=52, max=311, avg=127.04, stdev=42.59 lat (msec): min=52, max=311, avg=127.04, stdev=42.59 clat percentiles (msec): | 1.00th=[ 61], 5.00th=[ 72], 10.00th=[ 78], 20.00th=[ 91], | 30.00th=[ 103], 40.00th=[ 110], 50.00th=[ 122], 60.00th=[ 131], | 70.00th=[ 146], 80.00th=[ 159], 90.00th=[ 184], 95.00th=[ 201], | 99.00th=[ 264], 99.50th=[ 279], 99.90th=[ 313], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 32, max= 160, per=25.08%, avg=100.82, stdev=31.45, samples=122 iops : min= 2, max= 10, avg= 5.57, stdev= 2.07, samples=122 lat (msec) : 10=1.43%, 20=19.14%, 50=20.18%, 100=21.61%, 250=37.11% lat (msec) : 500=0.52% cpu : usr=0.05%, sys=1.67%, ctx=1529, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=383KiB/s (392kB/s), 91.8KiB/s-105KiB/s (94.0kB/s-107kB/s), io=23.4MiB (24.5MB), run=59768-62560msec WRITE: bw=403KiB/s (412kB/s), 101KiB/s-105KiB/s (103kB/s-107kB/s), io=24.6MiB (25.8MB), run=59768-62560msec 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=158129: Fri Oct 24 02:12:34 2025 read: IOPS=2, BW=2082KiB/s (2132kB/s)(7168KiB/3443msec) clat (msec): min=101, max=364, avg=176.13, stdev=98.26 lat (msec): min=101, max=364, avg=176.13, stdev=98.26 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 103], 10.00th=[ 103], 20.00th=[ 120], | 30.00th=[ 121], 40.00th=[ 121], 50.00th=[ 124], 60.00th=[ 146], | 70.00th=[ 146], 80.00th=[ 259], 90.00th=[ 363], 95.00th=[ 363], | 99.00th=[ 363], 99.50th=[ 363], 99.90th=[ 363], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 2007, max= 5919, per=91.77%, avg=3993.67, stdev=1956.72, samples=3 iops : min= 1, max= 5, avg= 3.00, stdev= 2.00, samples=3 write: IOPS=1, BW=1487KiB/s (1523kB/s)(5120KiB/3443msec); 0 zone resets clat (msec): min=226, max=809, avg=439.39, stdev=231.72 lat (msec): min=226, max=809, avg=439.48, stdev=231.73 clat percentiles (msec): | 1.00th=[ 226], 5.00th=[ 226], 10.00th=[ 226], 20.00th=[ 226], | 30.00th=[ 266], 40.00th=[ 266], 50.00th=[ 422], 60.00th=[ 422], | 70.00th=[ 472], 80.00th=[ 472], 90.00th=[ 810], 95.00th=[ 810], | 99.00th=[ 810], 99.50th=[ 810], 99.90th=[ 810], 99.95th=[ 810], | 99.99th=[ 810] bw ( KiB/s): min= 2007, max= 4047, per=44.30%, avg=2699.00, stdev=1167.54, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 250=50.00%, 500=41.67%, 1000=8.33% cpu : usr=0.00%, sys=5.23%, ctx=62, 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=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=158130: Fri Oct 24 02:12:34 2025 read: IOPS=0, BW=435KiB/s (446kB/s)(2048KiB/4705msec) clat (msec): min=97, max=216, avg=157.29, stdev=84.30 lat (msec): min=97, max=216, avg=157.29, stdev=84.30 clat percentiles (msec): | 1.00th=[ 99], 5.00th=[ 99], 10.00th=[ 99], 20.00th=[ 99], | 30.00th=[ 99], 40.00th=[ 99], 50.00th=[ 99], 60.00th=[ 218], | 70.00th=[ 218], 80.00th=[ 218], 90.00th=[ 218], 95.00th=[ 218], | 99.00th=[ 218], 99.50th=[ 218], 99.90th=[ 218], 99.95th=[ 218], | 99.99th=[ 218] bw ( KiB/s): min= 1921, max= 2007, per=45.13%, avg=1964.00, stdev=60.81, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2176KiB/s (2229kB/s)(10.0MiB/4705msec); 0 zone resets clat (msec): min=121, max=879, avg=434.01, stdev=251.88 lat (msec): min=121, max=879, avg=436.24, stdev=250.21 clat percentiles (msec): | 1.00th=[ 122], 5.00th=[ 122], 10.00th=[ 122], 20.00th=[ 142], | 30.00th=[ 213], 40.00th=[ 247], 50.00th=[ 472], 60.00th=[ 472], | 70.00th=[ 510], 80.00th=[ 584], 90.00th=[ 709], 95.00th=[ 877], | 99.00th=[ 877], 99.50th=[ 877], 99.90th=[ 877], 99.95th=[ 877], | 99.99th=[ 877] bw ( KiB/s): min= 1921, max= 6131, per=42.36%, avg=2580.86, stdev=1565.93, samples=7 iops : min= 1, max= 5, avg= 1.57, stdev= 1.51, samples=7 lat (msec) : 100=8.33%, 250=41.67%, 500=16.67%, 750=25.00%, 1000=8.33% cpu : usr=0.02%, sys=5.06%, ctx=83, 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=158131: Fri Oct 24 02:12:34 2025 read: IOPS=1, BW=1631KiB/s (1670kB/s)(6144KiB/3768msec) clat (msec): min=232, max=397, avg=317.43, stdev=68.62 lat (msec): min=232, max=397, avg=317.43, stdev=68.62 clat percentiles (msec): | 1.00th=[ 232], 5.00th=[ 232], 10.00th=[ 232], 20.00th=[ 234], | 30.00th=[ 234], 40.00th=[ 342], 50.00th=[ 342], 60.00th=[ 347], | 70.00th=[ 355], 80.00th=[ 355], 90.00th=[ 397], 95.00th=[ 397], | 99.00th=[ 397], 99.50th=[ 397], 99.90th=[ 397], 99.95th=[ 397], | 99.99th=[ 397] bw ( KiB/s): min= 1957, max= 2043, per=46.19%, avg=2010.00, stdev=33.38, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 write: IOPS=1, BW=1631KiB/s (1670kB/s)(6144KiB/3768msec); 0 zone resets clat (msec): min=170, max=487, avg=304.09, stdev=127.41 lat (msec): min=170, max=488, avg=304.18, stdev=127.41 clat percentiles (msec): | 1.00th=[ 171], 5.00th=[ 171], 10.00th=[ 171], 20.00th=[ 207], | 30.00th=[ 207], 40.00th=[ 257], 50.00th=[ 257], 60.00th=[ 271], | 70.00th=[ 435], 80.00th=[ 435], 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= 1957, max= 3618, per=38.16%, avg=2325.00, stdev=723.45, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (msec) : 250=33.33%, 500=66.67% cpu : usr=0.00%, sys=4.04%, ctx=64, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=158132: Fri Oct 24 02:12:34 2025 read: IOPS=1, BW=1225KiB/s (1255kB/s)(5120KiB/4179msec) clat (msec): min=79, max=525, avg=253.24, stdev=167.17 lat (msec): min=79, max=525, avg=253.24, stdev=167.18 clat percentiles (msec): | 1.00th=[ 81], 5.00th=[ 81], 10.00th=[ 81], 20.00th=[ 81], | 30.00th=[ 165], 40.00th=[ 165], 50.00th=[ 247], 60.00th=[ 247], | 70.00th=[ 249], 80.00th=[ 249], 90.00th=[ 527], 95.00th=[ 527], | 99.00th=[ 527], 99.50th=[ 527], 99.90th=[ 527], 99.95th=[ 527], | 99.99th=[ 527] bw ( KiB/s): min= 2000, max= 4015, per=61.57%, avg=2679.33, stdev=1156.78, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=1, BW=1715KiB/s (1756kB/s)(7168KiB/4179msec); 0 zone resets clat (msec): min=169, max=666, avg=412.67, stdev=225.60 lat (msec): min=169, max=666, avg=412.78, stdev=225.60 clat percentiles (msec): | 1.00th=[ 169], 5.00th=[ 169], 10.00th=[ 169], 20.00th=[ 182], | 30.00th=[ 271], 40.00th=[ 271], 50.00th=[ 326], 60.00th=[ 625], | 70.00th=[ 625], 80.00th=[ 651], 90.00th=[ 667], 95.00th=[ 667], | 99.00th=[ 667], 99.50th=[ 667], 99.90th=[ 667], 99.95th=[ 667], | 99.99th=[ 667] bw ( KiB/s): min= 1957, max= 3915, per=45.20%, avg=2754.00, stdev=1040.18, samples=5 iops : min= 1, max= 3, avg= 1.80, stdev= 1.10, samples=5 lat (msec) : 100=8.33%, 250=41.67%, 500=16.67%, 750=33.33% cpu : usr=0.00%, sys=4.50%, ctx=73, 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=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=4353KiB/s (4457kB/s), 435KiB/s-2082KiB/s (446kB/s-2132kB/s), io=20.0MiB (20.0MB), run=3443-4705msec WRITE: bw=6094KiB/s (6240kB/s), 1487KiB/s-2176KiB/s (1523kB/s-2229kB/s), io=28.0MiB (29.4MB), run=3443-4705msec rand-rw: (groupid=0, jobs=1): err= 0: pid=158134: Fri Oct 24 02:12:34 2025 read: IOPS=2, BW=2120KiB/s (2171kB/s)(7168KiB/3381msec) clat (usec): min=664, max=418651, avg=163362.95, stdev=160080.91 lat (usec): min=666, max=418652, avg=163364.52, stdev=160080.91 clat percentiles (usec): | 1.00th=[ 668], 5.00th=[ 668], 10.00th=[ 668], 20.00th=[ 2343], | 30.00th=[ 32637], 40.00th=[ 32637], 50.00th=[173016], 60.00th=[235930], | 70.00th=[235930], 80.00th=[283116], 90.00th=[417334], 95.00th=[417334], | 99.00th=[417334], 99.50th=[417334], 99.90th=[417334], 99.95th=[417334], | 99.99th=[417334] bw ( KiB/s): min= 2043, max= 4087, per=63.35%, avg=2919.75, stdev=1039.80, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 write: IOPS=1, BW=1514KiB/s (1551kB/s)(5120KiB/3381msec); 0 zone resets clat (msec): min=264, max=702, avg=447.06, stdev=161.90 lat (msec): min=264, max=702, avg=447.16, stdev=161.86 clat percentiles (msec): | 1.00th=[ 266], 5.00th=[ 266], 10.00th=[ 266], 20.00th=[ 266], | 30.00th=[ 380], 40.00th=[ 380], 50.00th=[ 418], 60.00th=[ 418], | 70.00th=[ 472], 80.00th=[ 472], 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=42.26%, avg=2727.33, stdev=1185.30, samples=3 iops : min= 1, max= 4, avg= 2.00, stdev= 1.73, samples=3 lat (usec) : 750=8.33% lat (msec) : 4=8.33%, 50=8.33%, 250=16.67%, 500=50.00%, 750=8.33% cpu : usr=0.09%, sys=16.04%, ctx=341, 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=158135: Fri Oct 24 02:12:34 2025 read: IOPS=0, BW=461KiB/s (472kB/s)(2048KiB/4443msec) clat (usec): min=572, max=557346, avg=278959.30, stdev=393698.32 lat (usec): min=573, max=557347, avg=278960.67, stdev=393698.65 clat percentiles (usec): | 1.00th=[ 570], 5.00th=[ 570], 10.00th=[ 570], 20.00th=[ 570], | 30.00th=[ 570], 40.00th=[ 570], 50.00th=[ 570], 60.00th=[557843], | 70.00th=[557843], 80.00th=[557843], 90.00th=[557843], 95.00th=[557843], | 99.00th=[557843], 99.50th=[557843], 99.90th=[557843], 99.95th=[557843], | 99.99th=[557843] bw ( KiB/s): min= 1735, max= 2043, per=40.99%, avg=1889.00, stdev=217.79, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2305KiB/s (2360kB/s)(10.0MiB/4443msec); 0 zone resets clat (msec): min=129, max=684, avg=387.69, stdev=230.32 lat (msec): min=129, max=684, avg=387.78, stdev=230.30 clat percentiles (msec): | 1.00th=[ 130], 5.00th=[ 130], 10.00th=[ 130], 20.00th=[ 150], | 30.00th=[ 165], 40.00th=[ 188], 50.00th=[ 257], 60.00th=[ 485], | 70.00th=[ 575], 80.00th=[ 584], 90.00th=[ 667], 95.00th=[ 684], | 99.00th=[ 684], 99.50th=[ 684], 99.90th=[ 684], 99.95th=[ 684], | 99.99th=[ 684] bw ( KiB/s): min= 1851, max= 3953, per=35.39%, avg=2284.00, stdev=739.34, samples=7 iops : min= 1, max= 3, avg= 1.43, stdev= 0.79, samples=7 lat (usec) : 750=8.33% lat (msec) : 250=33.33%, 500=16.67%, 750=41.67% cpu : usr=0.07%, sys=13.85%, ctx=146, 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=158136: Fri Oct 24 02:12:35 2025 read: IOPS=1, BW=1693KiB/s (1733kB/s)(6144KiB/3630msec) clat (usec): min=759, max=280739, avg=205947.16, stdev=102598.08 lat (usec): min=761, max=280741, avg=205948.68, stdev=102597.99 clat percentiles (usec): | 1.00th=[ 758], 5.00th=[ 758], 10.00th=[ 758], 20.00th=[219153], | 30.00th=[219153], 40.00th=[235930], 50.00th=[235930], 60.00th=[248513], | 70.00th=[252707], 80.00th=[252707], 90.00th=[278922], 95.00th=[278922], | 99.00th=[278922], 99.50th=[278922], 99.90th=[278922], 99.95th=[278922], | 99.99th=[278922] bw ( KiB/s): min= 2043, max= 4096, per=73.96%, avg=3408.67, stdev=1182.71, samples=3 iops : min= 1, max= 4, avg= 2.67, stdev= 1.53, samples=3 write: IOPS=1, BW=1693KiB/s (1733kB/s)(6144KiB/3630msec); 0 zone resets clat (msec): min=185, max=640, avg=398.19, stdev=178.05 lat (msec): min=185, max=640, avg=398.27, stdev=178.05 clat percentiles (msec): | 1.00th=[ 186], 5.00th=[ 186], 10.00th=[ 186], 20.00th=[ 230], | 30.00th=[ 230], 40.00th=[ 330], 50.00th=[ 330], 60.00th=[ 493], | 70.00th=[ 510], 80.00th=[ 510], 90.00th=[ 642], 95.00th=[ 642], | 99.00th=[ 642], 99.50th=[ 642], 99.90th=[ 642], 99.95th=[ 642], | 99.99th=[ 642] bw ( KiB/s): min= 2007, max= 3574, per=37.45%, avg=2416.75, stdev=771.69, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (usec) : 1000=8.33% lat (msec) : 250=41.67%, 500=33.33%, 750=16.67% cpu : usr=0.08%, sys=20.89%, ctx=211, 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=158137: Fri Oct 24 02:12:35 2025 read: IOPS=1, BW=1311KiB/s (1343kB/s)(5120KiB/3905msec) clat (usec): min=656, max=327539, avg=205741.04, stdev=122803.63 lat (usec): min=657, max=327539, avg=205742.35, stdev=122803.48 clat percentiles (usec): | 1.00th=[ 660], 5.00th=[ 660], 10.00th=[ 660], 20.00th=[ 660], | 30.00th=[210764], 40.00th=[210764], 50.00th=[231736], 60.00th=[231736], | 70.00th=[256902], 80.00th=[256902], 90.00th=[329253], 95.00th=[329253], | 99.00th=[329253], 99.50th=[329253], 99.90th=[329253], 99.95th=[329253], | 99.99th=[329253] bw ( KiB/s): min= 2043, max= 6144, per=88.82%, avg=4093.50, stdev=2899.84, samples=2 iops : min= 1, max= 6, avg= 3.50, stdev= 3.54, samples=2 write: IOPS=1, BW=1836KiB/s (1880kB/s)(7168KiB/3905msec); 0 zone resets clat (msec): min=141, max=704, avg=409.78, stdev=243.38 lat (msec): min=141, max=704, avg=409.89, stdev=243.38 clat percentiles (msec): | 1.00th=[ 142], 5.00th=[ 142], 10.00th=[ 142], 20.00th=[ 148], | 30.00th=[ 178], 40.00th=[ 178], 50.00th=[ 558], 60.00th=[ 567], | 70.00th=[ 567], 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= 2007, max= 4087, per=45.87%, avg=2960.00, stdev=1091.07, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 lat (usec) : 750=8.33% lat (msec) : 250=41.67%, 500=16.67%, 750=33.33% cpu : usr=0.03%, sys=15.24%, ctx=382, 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=4609KiB/s (4720kB/s), 461KiB/s-2120KiB/s (472kB/s-2171kB/s), io=20.0MiB (20.0MB), run=3381-4443msec WRITE: bw=6453KiB/s (6608kB/s), 1514KiB/s-2305KiB/s (1551kB/s-2360kB/s), io=28.0MiB (29.4MB), run=3381-4443msec 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=158144: Fri Oct 24 02:12:49 2025 read: IOPS=0, BW=2342KiB/s (2398kB/s)(12.0MiB/5247msec) clat (msec): min=745, max=3304, avg=1671.63, stdev=1418.47 lat (msec): min=745, max=3304, avg=1671.64, stdev=1418.47 clat percentiles (msec): | 1.00th=[ 743], 5.00th=[ 743], 10.00th=[ 743], 20.00th=[ 743], | 30.00th=[ 743], 40.00th=[ 969], 50.00th=[ 969], 60.00th=[ 969], | 70.00th=[ 3306], 80.00th=[ 3306], 90.00th=[ 3306], 95.00th=[ 3306], | 99.00th=[ 3306], 99.50th=[ 3306], 99.90th=[ 3306], 99.95th=[ 3306], | 99.99th=[ 3306] bw ( KiB/s): min= 7984, max= 8175, per=100.00%, avg=8079.50, stdev=135.06, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 1000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=10.24%, ctx=817, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=158145: Fri Oct 24 02:12:49 2025 read: IOPS=0, BW=695KiB/s (712kB/s)(4096KiB/5894msec) clat (nsec): min=3307.1M, max=3307.1M, avg=3307110655.00, stdev= 0.00 lat (nsec): min=3307.1M, max=3307.1M, avg=3307112654.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 3306], 5.00th=[ 3306], 10.00th=[ 3306], 20.00th=[ 3306], | 30.00th=[ 3306], 40.00th=[ 3306], 50.00th=[ 3306], 60.00th=[ 3306], | 70.00th=[ 3306], 80.00th=[ 3306], 90.00th=[ 3306], 95.00th=[ 3306], | 99.00th=[ 3306], 99.50th=[ 3306], 99.90th=[ 3306], 99.95th=[ 3306], | 99.99th=[ 3306] bw ( KiB/s): min= 8175, max= 8175, per=100.00%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=1390KiB/s (1423kB/s)(8192KiB/5894msec); 0 zone resets clat (msec): min=732, max=1624, avg=1178.60, stdev=630.84 lat (msec): min=732, max=1625, avg=1179.18, stdev=631.05 clat percentiles (msec): | 1.00th=[ 735], 5.00th=[ 735], 10.00th=[ 735], 20.00th=[ 735], | 30.00th=[ 735], 40.00th=[ 735], 50.00th=[ 735], 60.00th=[ 1620], | 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= 7984, max= 7984, per=100.00%, avg=7984.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=4.63%, ctx=506, 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=158146: Fri Oct 24 02:12:49 2025 write: IOPS=0, BW=2029KiB/s (2077kB/s)(12.0MiB/6057msec); 0 zone resets clat (msec): min=437, max=2991, avg=1944.24, stdev=1337.35 lat (msec): min=438, max=2992, avg=1944.86, stdev=1337.64 clat percentiles (msec): | 1.00th=[ 439], 5.00th=[ 439], 10.00th=[ 439], 20.00th=[ 439], | 30.00th=[ 439], 40.00th=[ 2400], 50.00th=[ 2400], 60.00th=[ 2400], | 70.00th=[ 3004], 80.00th=[ 3004], 90.00th=[ 3004], 95.00th=[ 3004], | 99.00th=[ 3004], 99.50th=[ 3004], 99.90th=[ 3004], 99.95th=[ 3004], | 99.99th=[ 3004] bw ( KiB/s): min= 8175, max= 8175, per=100.00%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, >=2000=66.67% cpu : usr=0.00%, sys=2.91%, ctx=88, 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=158147: Fri Oct 24 02:12:49 2025 write: IOPS=0, BW=2653KiB/s (2717kB/s)(12.0MiB/4632msec); 0 zone resets clat (msec): min=552, max=2913, avg=1482.99, stdev=1257.15 lat (msec): min=552, max=2913, avg=1483.57, stdev=1257.15 clat percentiles (msec): | 1.00th=[ 550], 5.00th=[ 550], 10.00th=[ 550], 20.00th=[ 550], | 30.00th=[ 550], 40.00th=[ 986], 50.00th=[ 986], 60.00th=[ 986], | 70.00th=[ 2903], 80.00th=[ 2903], 90.00th=[ 2903], 95.00th=[ 2903], | 99.00th=[ 2903], 99.50th=[ 2903], 99.90th=[ 2903], 99.95th=[ 2903], | 99.99th=[ 2903] bw ( KiB/s): min= 7953, max= 8175, per=100.00%, avg=8064.00, stdev=156.98, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 1000=33.33%, >=2000=33.33% cpu : usr=0.02%, sys=3.63%, ctx=59, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=2780KiB/s (2846kB/s), 695KiB/s-2342KiB/s (712kB/s-2398kB/s), io=16.0MiB (16.8MB), run=5247-5894msec WRITE: bw=5410KiB/s (5540kB/s), 1390KiB/s-2653KiB/s (1423kB/s-2717kB/s), io=32.0MiB (33.6MB), run=4632-6057msec rand-rw: (groupid=0, jobs=1): err= 0: pid=158148: Fri Oct 24 02:12:50 2025 read: IOPS=0, BW=2445KiB/s (2504kB/s)(12.0MiB/5025msec) clat (msec): min=243, max=3337, avg=1614.04, stdev=1577.24 lat (msec): min=243, max=3337, avg=1614.04, stdev=1577.24 clat percentiles (msec): | 1.00th=[ 243], 5.00th=[ 243], 10.00th=[ 243], 20.00th=[ 243], | 30.00th=[ 243], 40.00th=[ 1267], 50.00th=[ 1267], 60.00th=[ 1267], | 70.00th=[ 3339], 80.00th=[ 3339], 90.00th=[ 3339], 95.00th=[ 3339], | 99.00th=[ 3339], 99.50th=[ 3339], 99.90th=[ 3339], 99.95th=[ 3339], | 99.99th=[ 3339] bw ( KiB/s): min= 8175, max= 8175, per=100.00%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=2.53%, ctx=51, 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=158149: Fri Oct 24 02:12:50 2025 read: IOPS=0, BW=661KiB/s (677kB/s)(4096KiB/6198msec) clat (nsec): min=3230.0M, max=3230.0M, avg=3230957387.00, stdev= 0.00 lat (nsec): min=3230.0M, max=3230.0M, avg=3230960155.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 3239], 5.00th=[ 3239], 10.00th=[ 3239], 20.00th=[ 3239], | 30.00th=[ 3239], 40.00th=[ 3239], 50.00th=[ 3239], 60.00th=[ 3239], | 70.00th=[ 3239], 80.00th=[ 3239], 90.00th=[ 3239], 95.00th=[ 3239], | 99.00th=[ 3239], 99.50th=[ 3239], 99.90th=[ 3239], 99.95th=[ 3239], | 99.99th=[ 3239] bw ( KiB/s): min= 8175, max= 8175, per=100.00%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=1322KiB/s (1353kB/s)(8192KiB/6198msec); 0 zone resets clat (msec): min=918, max=1901, avg=1409.90, stdev=695.26 lat (msec): min=918, max=1901, avg=1410.39, stdev=695.21 clat percentiles (msec): | 1.00th=[ 919], 5.00th=[ 919], 10.00th=[ 919], 20.00th=[ 919], | 30.00th=[ 919], 40.00th=[ 919], 50.00th=[ 919], 60.00th=[ 1905], | 70.00th=[ 1905], 80.00th=[ 1905], 90.00th=[ 1905], 95.00th=[ 1905], | 99.00th=[ 1905], 99.50th=[ 1905], 99.90th=[ 1905], 99.95th=[ 1905], | 99.99th=[ 1905] bw ( KiB/s): min= 8192, max= 8192, per=100.00%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 1000=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.02%, sys=2.34%, ctx=47, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=158150: Fri Oct 24 02:12:50 2025 write: IOPS=0, BW=1983KiB/s (2031kB/s)(12.0MiB/6196msec); 0 zone resets clat (msec): min=284, max=4050, avg=2052.26, stdev=1893.51 lat (msec): min=286, max=4051, avg=2053.22, stdev=1892.75 clat percentiles (msec): | 1.00th=[ 284], 5.00th=[ 284], 10.00th=[ 284], 20.00th=[ 284], | 30.00th=[ 284], 40.00th=[ 1821], 50.00th=[ 1821], 60.00th=[ 1821], | 70.00th=[ 4044], 80.00th=[ 4044], 90.00th=[ 4044], 95.00th=[ 4044], | 99.00th=[ 4044], 99.50th=[ 4044], 99.90th=[ 4044], 99.95th=[ 4044], | 99.99th=[ 4044] bw ( KiB/s): min= 7892, max= 7968, per=100.00%, avg=7930.00, stdev=53.74, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=2.52%, ctx=60, 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=158151: Fri Oct 24 02:12:50 2025 write: IOPS=0, BW=2580KiB/s (2642kB/s)(12.0MiB/4762msec); 0 zone resets clat (msec): min=315, max=3363, avg=1544.97, stdev=1607.27 lat (msec): min=315, max=3364, avg=1545.49, stdev=1607.25 clat percentiles (msec): | 1.00th=[ 317], 5.00th=[ 317], 10.00th=[ 317], 20.00th=[ 317], | 30.00th=[ 317], 40.00th=[ 953], 50.00th=[ 953], 60.00th=[ 953], | 70.00th=[ 3373], 80.00th=[ 3373], 90.00th=[ 3373], 95.00th=[ 3373], | 99.00th=[ 3373], 99.50th=[ 3373], 99.90th=[ 3373], 99.95th=[ 3373], | 99.99th=[ 3373] bw ( KiB/s): min= 8175, max= 8192, per=100.00%, avg=8183.50, stdev=12.02, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 500=33.33%, 1000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=3.53%, ctx=67, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=2643KiB/s (2707kB/s), 661KiB/s-2445KiB/s (677kB/s-2504kB/s), io=16.0MiB (16.8MB), run=5025-6198msec WRITE: bw=5287KiB/s (5414kB/s), 1322KiB/s-2580KiB/s (1353kB/s-2642kB/s), io=32.0MiB (33.6MB), run=4762-6198msec