== sanity test 398b: DIO and buffer IO race ============== 03:17:03 (1771402623) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 2.92201 s, 17.2 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=147632: Wed Feb 18 03:18:19 2026 read: IOPS=22, BW=90.8KiB/s (92.0kB/s)(5992KiB/65984msec) clat (usec): min=132, max=681057, avg=21798.55, stdev=22897.75 lat (usec): min=132, max=681059, avg=21800.41, stdev=22898.37 clat percentiles (usec): | 1.00th=[ 212], 5.00th=[ 404], 10.00th=[ 7308], 20.00th=[ 11338], | 30.00th=[ 13566], 40.00th=[ 16057], 50.00th=[ 18482], 60.00th=[ 21890], | 70.00th=[ 25560], 80.00th=[ 30802], 90.00th=[ 38011], 95.00th=[ 45876], | 99.00th=[ 63701], 99.50th=[ 90702], 99.90th=[240124], 99.95th=[683672], | 99.99th=[683672] bw ( KiB/s): min= 7, max= 160, per=25.43%, avg=90.53, stdev=29.87, samples=131 iops : min= 1, max= 40, avg=22.10, stdev= 7.46, samples=131 write: IOPS=23, BW=95.4KiB/s (97.7kB/s)(6296KiB/65984msec); 0 zone resets clat (usec): min=775, max=194315, avg=20989.74, stdev=19665.31 lat (usec): min=775, max=194316, avg=20991.06, stdev=19665.32 clat percentiles (usec): | 1.00th=[ 1090], 5.00th=[ 1483], 10.00th=[ 2008], 20.00th=[ 3294], | 30.00th=[ 6521], 40.00th=[ 11863], 50.00th=[ 16319], 60.00th=[ 21365], | 70.00th=[ 27657], 80.00th=[ 35914], 90.00th=[ 46400], 95.00th=[ 54789], | 99.00th=[ 84411], 99.50th=[ 99091], 99.90th=[183501], 99.95th=[193987], | 99.99th=[193987] bw ( KiB/s): min= 15, max= 176, per=25.68%, avg=95.78, stdev=26.12, samples=130 iops : min= 3, max= 44, avg=23.42, stdev= 6.61, samples=130 lat (usec) : 250=1.46%, 500=1.40%, 750=0.55%, 1000=0.33% lat (msec) : 2=4.95%, 4=7.26%, 10=10.61%, 20=29.52%, 50=38.44% lat (msec) : 100=5.08%, 250=0.36%, 750=0.03% cpu : usr=0.10%, sys=11.83%, ctx=7501, 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=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=147633: Wed Feb 18 03:18:19 2026 read: IOPS=22, BW=89.1KiB/s (91.2kB/s)(5940KiB/66690msec) clat (usec): min=146, max=140674, avg=21696.62, stdev=15265.62 lat (usec): min=147, max=140675, avg=21699.12, stdev=15264.56 clat percentiles (usec): | 1.00th=[ 208], 5.00th=[ 445], 10.00th=[ 7701], 20.00th=[ 11207], | 30.00th=[ 13566], 40.00th=[ 15795], 50.00th=[ 18744], 60.00th=[ 22152], | 70.00th=[ 26346], 80.00th=[ 31327], 90.00th=[ 38536], 95.00th=[ 46924], | 99.00th=[ 71828], 99.50th=[ 98042], 99.90th=[135267], 99.95th=[141558], | 99.99th=[141558] bw ( KiB/s): min= 6, max= 159, per=24.89%, avg=88.61, stdev=26.24, samples=132 iops : min= 1, max= 39, avg=21.61, stdev= 6.60, samples=132 write: IOPS=23, BW=95.2KiB/s (97.5kB/s)(6348KiB/66690msec); 0 zone resets clat (usec): min=800, max=651914, avg=21537.49, stdev=25169.62 lat (usec): min=801, max=651915, avg=21538.91, stdev=25169.66 clat percentiles (usec): | 1.00th=[ 979], 5.00th=[ 1303], 10.00th=[ 1844], 20.00th=[ 3326], | 30.00th=[ 6063], 40.00th=[ 11731], 50.00th=[ 16450], 60.00th=[ 22152], | 70.00th=[ 27919], 80.00th=[ 35914], 90.00th=[ 48497], 95.00th=[ 60031], | 99.00th=[ 84411], 99.50th=[ 95945], 99.90th=[168821], 99.95th=[650118], | 99.99th=[650118] bw ( KiB/s): min= 6, max= 184, per=25.34%, avg=94.52, stdev=29.76, samples=132 iops : min= 1, max= 46, avg=23.09, stdev= 7.49, samples=132 lat (usec) : 250=0.98%, 500=1.79%, 750=0.49%, 1000=0.81% lat (msec) : 2=5.27%, 4=6.58%, 10=10.87%, 20=28.35%, 50=38.54% lat (msec) : 100=5.89%, 250=0.39%, 750=0.03% cpu : usr=0.11%, sys=11.90%, ctx=7527, 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=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=147634: Wed Feb 18 03:18:19 2026 read: IOPS=22, BW=89.6KiB/s (91.7kB/s)(6028KiB/67291msec) clat (usec): min=147, max=234343, avg=21911.15, stdev=16324.36 lat (usec): min=148, max=234343, avg=21912.73, stdev=16324.34 clat percentiles (usec): | 1.00th=[ 206], 5.00th=[ 453], 10.00th=[ 7701], 20.00th=[ 11207], | 30.00th=[ 13435], 40.00th=[ 16057], 50.00th=[ 19006], 60.00th=[ 22414], | 70.00th=[ 26084], 80.00th=[ 30802], 90.00th=[ 38011], 95.00th=[ 47449], | 99.00th=[ 74974], 99.50th=[112722], 99.90th=[141558], 99.95th=[233833], | 99.99th=[233833] bw ( KiB/s): min= 39, max= 167, per=25.33%, avg=90.18, stdev=26.62, samples=131 iops : min= 9, max= 41, avg=22.00, stdev= 6.67, samples=131 write: IOPS=23, BW=93.0KiB/s (95.3kB/s)(6260KiB/67291msec); 0 zone resets clat (usec): min=840, max=759008, avg=21712.65, stdev=26863.11 lat (usec): min=841, max=759011, avg=21714.30, stdev=26863.07 clat percentiles (usec): | 1.00th=[ 988], 5.00th=[ 1352], 10.00th=[ 1844], 20.00th=[ 3654], | 30.00th=[ 6521], 40.00th=[ 12256], 50.00th=[ 16909], 60.00th=[ 21890], | 70.00th=[ 28443], 80.00th=[ 35914], 90.00th=[ 47449], 95.00th=[ 58983], | 99.00th=[ 82314], 99.50th=[ 92799], 99.90th=[175113], 99.95th=[759170], | 99.99th=[759170] bw ( KiB/s): min= 16, max= 152, per=24.86%, avg=92.74, stdev=24.87, samples=132 iops : min= 4, max= 38, avg=22.65, stdev= 6.27, samples=132 lat (usec) : 250=1.24%, 500=1.43%, 750=0.62%, 1000=0.68% lat (msec) : 2=5.50%, 4=5.34%, 10=11.17%, 20=28.52%, 50=39.42% lat (msec) : 100=5.57%, 250=0.49%, 1000=0.03% cpu : usr=0.11%, sys=11.92%, ctx=7535, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=147635: Wed Feb 18 03:18:19 2026 read: IOPS=22, BW=89.0KiB/s (92.1kB/s)(6052KiB/67257msec) clat (usec): min=163, max=132093, avg=21587.55, stdev=14350.80 lat (usec): min=163, max=132094, avg=21589.19, stdev=14351.47 clat percentiles (usec): | 1.00th=[ 208], 5.00th=[ 388], 10.00th=[ 7242], 20.00th=[ 11338], | 30.00th=[ 13698], 40.00th=[ 16057], 50.00th=[ 19006], 60.00th=[ 22152], | 70.00th=[ 26084], 80.00th=[ 31327], 90.00th=[ 39584], 95.00th=[ 46924], | 99.00th=[ 68682], 99.50th=[ 83362], 99.90th=[101188], 99.95th=[131597], | 99.99th=[131597] bw ( KiB/s): min= 31, max= 158, per=25.36%, avg=90.28, stdev=25.38, samples=131 iops : min= 7, max= 39, avg=22.03, stdev= 6.37, samples=131 write: IOPS=23, BW=92.7KiB/s (94.9kB/s)(6236KiB/67257msec); 0 zone resets clat (usec): min=910, max=731255, avg=22008.85, stdev=27316.94 lat (usec): min=912, max=731257, avg=22011.07, stdev=27316.99 clat percentiles (usec): | 1.00th=[ 1123], 5.00th=[ 1352], 10.00th=[ 1975], 20.00th=[ 3392], | 30.00th=[ 6652], 40.00th=[ 12518], 50.00th=[ 16909], 60.00th=[ 22152], | 70.00th=[ 28181], 80.00th=[ 34866], 90.00th=[ 46924], 95.00th=[ 61080], | 99.00th=[ 86508], 99.50th=[111674], 99.90th=[198181], 99.95th=[734004], | 99.99th=[734004] bw ( KiB/s): min= 16, max= 167, per=24.86%, avg=92.72, stdev=26.12, samples=132 iops : min= 4, max= 41, avg=22.64, stdev= 6.56, samples=132 lat (usec) : 250=1.40%, 500=1.63%, 750=0.62%, 1000=0.46% lat (msec) : 2=5.01%, 4=6.67%, 10=9.99%, 20=28.65%, 50=39.45% lat (msec) : 100=5.70%, 250=0.39%, 750=0.03% cpu : usr=0.10%, sys=11.96%, ctx=7618, 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=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=357KiB/s (365kB/s), 89.1KiB/s-90.8KiB/s (91.2kB/s-92.0kB/s), io=23.4MiB (24.6MB), run=65984-67291msec WRITE: bw=374KiB/s (383kB/s), 92.7KiB/s-95.4KiB/s (94.9kB/s-97.7kB/s), io=24.6MiB (25.7MB), run=65984-67291msec rand-rw: (groupid=0, jobs=1): err= 0: pid=147637: Wed Feb 18 03:19:16 2026 read: IOPS=12, BW=48.4KiB/s (49.6kB/s)(5992KiB/123771msec) clat (msec): min=3, max=697, avg=17.67, stdev=24.21 lat (msec): min=3, max=697, avg=17.67, stdev=24.21 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 6], 10.00th=[ 6], 20.00th=[ 8], | 30.00th=[ 9], 40.00th=[ 10], 50.00th=[ 11], 60.00th=[ 13], | 70.00th=[ 17], 80.00th=[ 24], 90.00th=[ 39], 95.00th=[ 51], | 99.00th=[ 86], 99.50th=[ 97], 99.90th=[ 188], 99.95th=[ 701], | 99.99th=[ 701] bw ( KiB/s): min= 7, max= 152, per=25.29%, avg=48.81, stdev=30.21, samples=242 iops : min= 1, max= 38, avg=11.68, stdev= 7.60, samples=242 write: IOPS=12, BW=50.9KiB/s (52.1kB/s)(6296KiB/123771msec); 0 zone resets clat (msec): min=16, max=305, avg=61.69, stdev=29.32 lat (msec): min=16, max=305, avg=61.69, stdev=29.32 clat percentiles (msec): | 1.00th=[ 24], 5.00th=[ 30], 10.00th=[ 33], 20.00th=[ 39], | 30.00th=[ 44], 40.00th=[ 49], 50.00th=[ 55], 60.00th=[ 62], | 70.00th=[ 70], 80.00th=[ 82], 90.00th=[ 103], 95.00th=[ 116], | 99.00th=[ 153], 99.50th=[ 180], 99.90th=[ 271], 99.95th=[ 305], | 99.99th=[ 305] bw ( KiB/s): min= 8, max= 96, per=25.05%, avg=50.60, stdev=21.28, samples=245 iops : min= 2, max= 24, avg=12.13, stdev= 5.37, samples=245 lat (msec) : 4=0.10%, 10=21.32%, 20=15.33%, 50=31.32%, 100=26.27% lat (msec) : 250=5.57%, 500=0.07%, 750=0.03% cpu : usr=0.07%, sys=3.16%, ctx=5473, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=147638: Wed Feb 18 03:19:16 2026 read: IOPS=11, BW=47.8KiB/s (48.9kB/s)(5940KiB/124341msec) clat (msec): min=3, max=665, avg=17.65, stdev=23.48 lat (msec): min=3, max=665, avg=17.65, stdev=23.48 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 6], 10.00th=[ 7], 20.00th=[ 8], | 30.00th=[ 9], 40.00th=[ 10], 50.00th=[ 11], 60.00th=[ 14], | 70.00th=[ 18], 80.00th=[ 25], 90.00th=[ 37], 95.00th=[ 51], | 99.00th=[ 80], 99.50th=[ 97], 99.90th=[ 234], 99.95th=[ 667], | 99.99th=[ 667] bw ( KiB/s): min= 7, max= 160, per=25.02%, avg=48.29, stdev=30.36, samples=242 iops : min= 1, max= 40, avg=11.56, stdev= 7.62, samples=242 write: IOPS=12, BW=51.1KiB/s (52.3kB/s)(6348KiB/124341msec); 0 zone resets clat (msec): min=18, max=237, avg=61.72, stdev=28.83 lat (msec): min=18, max=237, avg=61.72, stdev=28.83 clat percentiles (msec): | 1.00th=[ 25], 5.00th=[ 30], 10.00th=[ 33], 20.00th=[ 39], | 30.00th=[ 44], 40.00th=[ 49], 50.00th=[ 55], 60.00th=[ 62], | 70.00th=[ 69], 80.00th=[ 83], 90.00th=[ 103], 95.00th=[ 117], | 99.00th=[ 157], 99.50th=[ 178], 99.90th=[ 228], 99.95th=[ 239], | 99.99th=[ 239] bw ( KiB/s): min= 7, max= 103, per=25.12%, avg=50.74, stdev=21.08, samples=246 iops : min= 1, max= 25, avg=12.17, stdev= 5.31, samples=246 lat (msec) : 4=0.07%, 10=20.96%, 20=15.27%, 50=31.32%, 100=26.63% lat (msec) : 250=5.73%, 750=0.03% cpu : usr=0.07%, sys=3.12%, ctx=5465, 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=147639: Wed Feb 18 03:19:16 2026 read: IOPS=12, BW=48.6KiB/s (49.7kB/s)(6028KiB/124140msec) clat (msec): min=3, max=193, avg=18.48, stdev=18.41 lat (msec): min=3, max=193, avg=18.48, stdev=18.41 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 6], 10.00th=[ 7], 20.00th=[ 8], | 30.00th=[ 9], 40.00th=[ 10], 50.00th=[ 12], 60.00th=[ 14], | 70.00th=[ 19], 80.00th=[ 27], 90.00th=[ 40], 95.00th=[ 54], | 99.00th=[ 100], 99.50th=[ 115], 99.90th=[ 182], 99.95th=[ 194], | 99.99th=[ 194] bw ( KiB/s): min= 7, max= 151, per=25.24%, avg=48.70, stdev=27.56, samples=243 iops : min= 1, max= 37, avg=11.66, stdev= 6.91, samples=243 write: IOPS=12, BW=50.4KiB/s (51.6kB/s)(6260KiB/124140msec); 0 zone resets clat (msec): min=17, max=750, avg=61.40, stdev=33.43 lat (msec): min=17, max=750, avg=61.40, stdev=33.43 clat percentiles (msec): | 1.00th=[ 25], 5.00th=[ 29], 10.00th=[ 34], 20.00th=[ 39], | 30.00th=[ 44], 40.00th=[ 49], 50.00th=[ 55], 60.00th=[ 61], | 70.00th=[ 69], 80.00th=[ 81], 90.00th=[ 99], 95.00th=[ 117], | 99.00th=[ 155], 99.50th=[ 178], 99.90th=[ 236], 99.95th=[ 751], | 99.99th=[ 751] bw ( KiB/s): min= 15, max= 112, per=24.79%, avg=50.07, stdev=21.77, samples=245 iops : min= 3, max= 28, avg=12.00, stdev= 5.50, samples=245 lat (msec) : 4=0.07%, 10=20.05%, 20=16.05%, 50=31.77%, 100=26.63% lat (msec) : 250=5.40%, 1000=0.03% cpu : usr=0.07%, sys=3.13%, ctx=5392, 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=147640: Wed Feb 18 03:19:16 2026 read: IOPS=12, BW=48.8KiB/s (49.9kB/s)(6052KiB/124134msec) clat (msec): min=3, max=233, avg=18.05, stdev=17.93 lat (msec): min=3, max=233, avg=18.05, stdev=17.93 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 6], 10.00th=[ 7], 20.00th=[ 8], | 30.00th=[ 9], 40.00th=[ 10], 50.00th=[ 12], 60.00th=[ 14], | 70.00th=[ 18], 80.00th=[ 26], 90.00th=[ 39], 95.00th=[ 52], | 99.00th=[ 82], 99.50th=[ 107], 99.90th=[ 188], 99.95th=[ 234], | 99.99th=[ 234] bw ( KiB/s): min= 7, max= 152, per=25.46%, avg=49.14, stdev=27.79, samples=242 iops : min= 1, max= 38, avg=11.77, stdev= 6.99, samples=242 write: IOPS=12, BW=50.2KiB/s (51.4kB/s)(6236KiB/124134msec); 0 zone resets clat (msec): min=18, max=723, avg=61.99, stdev=33.81 lat (msec): min=18, max=723, avg=61.99, stdev=33.81 clat percentiles (msec): | 1.00th=[ 25], 5.00th=[ 30], 10.00th=[ 34], 20.00th=[ 39], | 30.00th=[ 44], 40.00th=[ 50], 50.00th=[ 55], 60.00th=[ 62], | 70.00th=[ 70], 80.00th=[ 81], 90.00th=[ 100], 95.00th=[ 115], | 99.00th=[ 161], 99.50th=[ 197], 99.90th=[ 305], 99.95th=[ 726], | 99.99th=[ 726] bw ( KiB/s): min= 7, max= 111, per=24.71%, avg=49.91, stdev=21.17, samples=245 iops : min= 1, max= 27, avg=11.96, stdev= 5.33, samples=245 lat (msec) : 4=0.03%, 10=20.31%, 20=16.05%, 50=31.28%, 100=27.08% lat (msec) : 250=5.11%, 500=0.10%, 750=0.03% cpu : usr=0.05%, sys=3.09%, ctx=5504, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=193KiB/s (198kB/s), 47.8KiB/s-48.8KiB/s (48.9kB/s-49.9kB/s), io=23.4MiB (24.6MB), run=123771-124341msec WRITE: bw=202KiB/s (207kB/s), 50.2KiB/s-51.1KiB/s (51.4kB/s-52.3kB/s), io=24.6MiB (25.7MB), run=123771-124341msec 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=147677: Wed Feb 18 03:19:36 2026 read: IOPS=23, BW=382KiB/s (391kB/s)(5920KiB/15515msec) clat (usec): min=162, max=90270, avg=21240.56, stdev=15761.62 lat (usec): min=163, max=90271, avg=21241.53, stdev=15761.59 clat percentiles (usec): | 1.00th=[ 192], 5.00th=[ 249], 10.00th=[ 375], 20.00th=[ 2311], | 30.00th=[13566], 40.00th=[17171], 50.00th=[20317], 60.00th=[23200], | 70.00th=[27395], 80.00th=[31851], 90.00th=[40633], 95.00th=[47973], | 99.00th=[71828], 99.50th=[80217], 99.90th=[90702], 99.95th=[90702], | 99.99th=[90702] bw ( KiB/s): min= 223, max= 702, per=25.04%, avg=377.63, stdev=111.24, samples=30 iops : min= 13, max= 43, avg=22.87, stdev= 6.94, samples=30 write: IOPS=25, BW=410KiB/s (420kB/s)(6368KiB/15515msec); 0 zone resets clat (usec): min=1419, max=110060, avg=19175.67, stdev=18835.51 lat (usec): min=1421, max=110063, avg=19181.45, stdev=18840.61 clat percentiles (usec): | 1.00th=[ 1762], 5.00th=[ 2147], 10.00th=[ 2540], 20.00th=[ 3785], | 30.00th=[ 5407], 40.00th=[ 7570], 50.00th=[ 12387], 60.00th=[ 19530], | 70.00th=[ 24249], 80.00th=[ 32375], 90.00th=[ 45876], 95.00th=[ 53740], | 99.00th=[ 93848], 99.50th=[101188], 99.90th=[109577], 99.95th=[109577], | 99.99th=[109577] bw ( KiB/s): min= 159, max= 670, per=25.88%, avg=410.70, stdev=124.59, samples=30 iops : min= 9, max= 41, avg=24.97, stdev= 7.78, samples=30 lat (usec) : 250=2.47%, 500=4.04%, 750=1.43%, 1000=0.65% lat (msec) : 2=2.86%, 4=9.24%, 10=13.28%, 20=20.96%, 50=39.19% lat (msec) : 100=5.60%, 250=0.26% cpu : usr=0.11%, sys=13.69%, ctx=1730, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=147678: Wed Feb 18 03:19:36 2026 read: IOPS=22, BW=363KiB/s (372kB/s)(5744KiB/15813msec) clat (usec): min=124, max=161031, avg=23586.49, stdev=18589.83 lat (usec): min=125, max=161032, avg=23587.44, stdev=18589.82 clat percentiles (usec): | 1.00th=[ 206], 5.00th=[ 258], 10.00th=[ 433], 20.00th=[ 11076], | 30.00th=[ 15533], 40.00th=[ 18220], 50.00th=[ 21365], 60.00th=[ 25297], | 70.00th=[ 28967], 80.00th=[ 34341], 90.00th=[ 43779], 95.00th=[ 53216], | 99.00th=[ 84411], 99.50th=[133694], 99.90th=[160433], 99.95th=[160433], | 99.99th=[160433] bw ( KiB/s): min= 190, max= 576, per=24.04%, avg=362.45, stdev=82.40, samples=31 iops : min= 11, max= 36, avg=21.94, stdev= 5.22, samples=31 write: IOPS=25, BW=414KiB/s (424kB/s)(6544KiB/15813msec); 0 zone resets clat (usec): min=1291, max=117418, avg=17915.56, stdev=17179.54 lat (usec): min=1293, max=117418, avg=17917.32, stdev=17179.60 clat percentiles (usec): | 1.00th=[ 1549], 5.00th=[ 2008], 10.00th=[ 2769], 20.00th=[ 4490], | 30.00th=[ 5997], 40.00th=[ 8225], 50.00th=[ 11600], 60.00th=[ 16909], | 70.00th=[ 22152], 80.00th=[ 29230], 90.00th=[ 45351], 95.00th=[ 51119], | 99.00th=[ 70779], 99.50th=[ 90702], 99.90th=[116917], 99.95th=[116917], | 99.99th=[116917] bw ( KiB/s): min= 223, max= 734, per=26.00%, avg=412.61, stdev=126.39, samples=31 iops : min= 13, max= 45, avg=25.06, stdev= 7.92, samples=31 lat (usec) : 250=2.08%, 500=3.12%, 750=1.17%, 1000=0.26% lat (msec) : 2=3.12%, 4=7.03%, 10=16.28%, 20=23.44%, 50=37.24% lat (msec) : 100=5.73%, 250=0.52% cpu : usr=0.10%, sys=14.60%, ctx=1821, 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=147679: Wed Feb 18 03:19:36 2026 read: IOPS=24, BW=394KiB/s (404kB/s)(6256KiB/15874msec) clat (usec): min=162, max=119194, avg=21290.12, stdev=17537.90 lat (usec): min=162, max=119195, avg=21296.21, stdev=17541.48 clat percentiles (usec): | 1.00th=[ 178], 5.00th=[ 235], 10.00th=[ 343], 20.00th=[ 824], | 30.00th=[ 12256], 40.00th=[ 16581], 50.00th=[ 20317], 60.00th=[ 23462], | 70.00th=[ 27919], 80.00th=[ 32900], 90.00th=[ 40109], 95.00th=[ 49546], | 99.00th=[ 88605], 99.50th=[103285], 99.90th=[119014], 99.95th=[119014], | 99.99th=[119014] bw ( KiB/s): min= 154, max= 606, per=26.44%, avg=398.77, stdev=109.97, samples=31 iops : min= 9, max= 37, avg=24.19, stdev= 6.98, samples=31 write: IOPS=23, BW=380KiB/s (389kB/s)(6032KiB/15874msec); 0 zone resets clat (usec): min=1112, max=139550, avg=19970.35, stdev=20880.83 lat (usec): min=1114, max=139551, avg=19972.02, stdev=20880.81 clat percentiles (usec): | 1.00th=[ 1401], 5.00th=[ 1975], 10.00th=[ 2704], 20.00th=[ 4293], | 30.00th=[ 5735], 40.00th=[ 7701], 50.00th=[ 12256], 60.00th=[ 19268], | 70.00th=[ 26084], 80.00th=[ 33424], 90.00th=[ 44303], 95.00th=[ 54264], | 99.00th=[105382], 99.50th=[133694], 99.90th=[139461], 99.95th=[139461], | 99.99th=[139461] bw ( KiB/s): min= 154, max= 605, per=23.82%, avg=378.00, stdev=132.23, samples=31 iops : min= 9, max= 37, avg=22.90, stdev= 8.24, samples=31 lat (usec) : 250=3.12%, 500=4.82%, 750=2.21%, 1000=0.39% lat (msec) : 2=3.26%, 4=6.77%, 10=14.97%, 20=18.88%, 50=39.58% lat (msec) : 100=5.21%, 250=0.78% cpu : usr=0.13%, sys=13.55%, ctx=1772, 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=147680: Wed Feb 18 03:19:36 2026 read: IOPS=24, BW=392KiB/s (401kB/s)(6032KiB/15386msec) clat (usec): min=159, max=137842, avg=20879.79, stdev=16567.80 lat (usec): min=159, max=137842, avg=20880.70, stdev=16567.86 clat percentiles (usec): | 1.00th=[ 186], 5.00th=[ 239], 10.00th=[ 322], 20.00th=[ 1020], | 30.00th=[ 13304], 40.00th=[ 17695], 50.00th=[ 19530], 60.00th=[ 22676], | 70.00th=[ 27395], 80.00th=[ 31851], 90.00th=[ 40109], 95.00th=[ 46924], | 99.00th=[ 83362], 99.50th=[ 96994], 99.90th=[137364], 99.95th=[137364], | 99.99th=[137364] bw ( KiB/s): min= 214, max= 634, per=26.11%, avg=393.80, stdev=102.41, samples=30 iops : min= 13, max= 39, avg=23.90, stdev= 6.50, samples=30 write: IOPS=25, BW=407KiB/s (416kB/s)(6256KiB/15386msec); 0 zone resets clat (usec): min=1151, max=131260, avg=19144.19, stdev=19730.48 lat (usec): min=1152, max=131261, avg=19146.17, stdev=19730.33 clat percentiles (usec): | 1.00th=[ 1680], 5.00th=[ 2114], 10.00th=[ 2671], 20.00th=[ 3851], | 30.00th=[ 5342], 40.00th=[ 8029], 50.00th=[ 11600], 60.00th=[ 16057], | 70.00th=[ 23725], 80.00th=[ 32900], 90.00th=[ 43779], 95.00th=[ 59507], | 99.00th=[ 90702], 99.50th=[108528], 99.90th=[131597], 99.95th=[131597], | 99.99th=[131597] bw ( KiB/s): min= 214, max= 606, per=25.88%, avg=410.73, stdev=107.10, samples=30 iops : min= 13, max= 37, avg=24.97, stdev= 6.73, samples=30 lat (usec) : 250=2.99%, 500=4.17%, 750=1.95%, 1000=0.65% lat (msec) : 2=2.99%, 4=9.38%, 10=13.02%, 20=22.66%, 50=36.85% lat (msec) : 100=4.82%, 250=0.52% cpu : usr=0.14%, sys=13.69%, ctx=1768, 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=1509KiB/s (1545kB/s), 363KiB/s-394KiB/s (372kB/s-404kB/s), io=23.4MiB (24.5MB), run=15386-15874msec WRITE: bw=1588KiB/s (1626kB/s), 380KiB/s-414KiB/s (389kB/s-424kB/s), io=24.6MiB (25.8MB), run=15386-15874msec rand-rw: (groupid=0, jobs=1): err= 0: pid=147672: Wed Feb 18 03:19:55 2026 read: IOPS=10, BW=171KiB/s (176kB/s)(5920KiB/34531msec) clat (msec): min=4, max=159, avg=20.10, stdev=19.20 lat (msec): min=4, max=159, avg=20.10, stdev=19.20 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 9], | 30.00th=[ 10], 40.00th=[ 12], 50.00th=[ 14], 60.00th=[ 16], | 70.00th=[ 20], 80.00th=[ 28], 90.00th=[ 43], 95.00th=[ 61], | 99.00th=[ 100], 99.50th=[ 109], 99.90th=[ 159], 99.95th=[ 159], | 99.99th=[ 159] bw ( KiB/s): min= 31, max= 542, per=24.46%, avg=169.49, stdev=96.24, samples=68 iops : min= 1, max= 33, avg= 9.96, stdev= 6.01, samples=68 write: IOPS=11, BW=184KiB/s (189kB/s)(6368KiB/34531msec); 0 zone resets clat (msec): min=23, max=220, avg=67.83, stdev=33.23 lat (msec): min=23, max=220, avg=67.83, stdev=33.23 clat percentiles (msec): | 1.00th=[ 26], 5.00th=[ 31], 10.00th=[ 37], 20.00th=[ 42], | 30.00th=[ 48], 40.00th=[ 53], 50.00th=[ 58], 60.00th=[ 66], | 70.00th=[ 78], 80.00th=[ 90], 90.00th=[ 114], 95.00th=[ 136], | 99.00th=[ 190], 99.50th=[ 215], 99.90th=[ 220], 99.95th=[ 220], | 99.99th=[ 220] bw ( KiB/s): min= 31, max= 351, per=25.13%, avg=183.21, stdev=79.66, samples=68 iops : min= 1, max= 21, avg=10.81, stdev= 5.06, samples=68 lat (msec) : 10=14.84%, 20=19.79%, 50=27.60%, 100=30.08%, 250=7.68% cpu : usr=0.06%, sys=3.26%, ctx=1477, 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=147673: Wed Feb 18 03:19:55 2026 read: IOPS=10, BW=166KiB/s (170kB/s)(5744KiB/34520msec) clat (msec): min=4, max=182, avg=20.37, stdev=21.23 lat (msec): min=4, max=182, avg=20.37, stdev=21.23 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 9], | 30.00th=[ 10], 40.00th=[ 11], 50.00th=[ 13], 60.00th=[ 15], | 70.00th=[ 19], 80.00th=[ 26], 90.00th=[ 45], 95.00th=[ 71], | 99.00th=[ 97], 99.50th=[ 117], 99.90th=[ 184], 99.95th=[ 184], | 99.99th=[ 184] bw ( KiB/s): min= 30, max= 512, per=24.69%, avg=171.08, stdev=111.00, samples=66 iops : min= 1, max= 32, avg=10.05, stdev= 7.02, samples=66 write: IOPS=11, BW=190KiB/s (194kB/s)(6544KiB/34520msec); 0 zone resets clat (msec): min=22, max=274, avg=66.40, stdev=33.71 lat (msec): min=22, max=274, avg=66.40, stdev=33.71 clat percentiles (msec): | 1.00th=[ 28], 5.00th=[ 33], 10.00th=[ 35], 20.00th=[ 42], | 30.00th=[ 47], 40.00th=[ 52], 50.00th=[ 57], 60.00th=[ 63], | 70.00th=[ 73], 80.00th=[ 84], 90.00th=[ 117], 95.00th=[ 144], | 99.00th=[ 165], 99.50th=[ 178], 99.90th=[ 275], 99.95th=[ 275], | 99.99th=[ 275] bw ( KiB/s): min= 31, max= 351, per=25.87%, avg=188.62, stdev=82.08, samples=68 iops : min= 1, max= 21, avg=11.15, stdev= 5.20, samples=68 lat (msec) : 10=16.15%, 20=17.84%, 50=28.91%, 100=29.56%, 250=7.42% lat (msec) : 500=0.13% cpu : usr=0.08%, sys=3.40%, ctx=1506, 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=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=147674: Wed Feb 18 03:19:55 2026 read: IOPS=11, BW=185KiB/s (189kB/s)(6256KiB/33814msec) clat (msec): min=4, max=160, avg=21.87, stdev=22.17 lat (msec): min=4, max=160, avg=21.87, stdev=22.17 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 9], | 30.00th=[ 10], 40.00th=[ 11], 50.00th=[ 13], 60.00th=[ 16], | 70.00th=[ 21], 80.00th=[ 33], 90.00th=[ 51], 95.00th=[ 73], | 99.00th=[ 104], 99.50th=[ 118], 99.90th=[ 161], 99.95th=[ 161], | 99.99th=[ 161] bw ( KiB/s): min= 31, max= 574, per=27.17%, avg=188.26, stdev=127.53, samples=66 iops : min= 1, max= 35, avg=11.12, stdev= 8.06, samples=66 write: IOPS=11, BW=178KiB/s (183kB/s)(6032KiB/33814msec); 0 zone resets clat (msec): min=20, max=219, avg=66.77, stdev=31.90 lat (msec): min=20, max=219, avg=66.77, stdev=31.90 clat percentiles (msec): | 1.00th=[ 26], 5.00th=[ 32], 10.00th=[ 36], 20.00th=[ 43], | 30.00th=[ 48], 40.00th=[ 53], 50.00th=[ 59], 60.00th=[ 66], | 70.00th=[ 74], 80.00th=[ 88], 90.00th=[ 111], 95.00th=[ 130], | 99.00th=[ 186], 99.50th=[ 197], 99.90th=[ 220], 99.95th=[ 220], | 99.99th=[ 220] bw ( KiB/s): min= 31, max= 352, per=24.38%, avg=177.76, stdev=79.03, samples=67 iops : min= 1, max= 22, avg=10.48, stdev= 5.05, samples=67 lat (msec) : 10=16.93%, 20=18.62%, 50=27.08%, 100=30.08%, 250=7.29% cpu : usr=0.06%, sys=3.46%, ctx=1508, 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=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=147675: Wed Feb 18 03:19:55 2026 read: IOPS=10, BW=176KiB/s (180kB/s)(6032KiB/34366msec) clat (msec): min=5, max=171, avg=20.76, stdev=21.03 lat (msec): min=5, max=171, avg=20.76, stdev=21.03 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 9], | 30.00th=[ 11], 40.00th=[ 12], 50.00th=[ 14], 60.00th=[ 16], | 70.00th=[ 19], 80.00th=[ 27], 90.00th=[ 44], 95.00th=[ 64], | 99.00th=[ 106], 99.50th=[ 133], 99.90th=[ 171], 99.95th=[ 171], | 99.99th=[ 171] bw ( KiB/s): min= 32, max= 416, per=25.91%, avg=179.53, stdev=100.53, samples=66 iops : min= 2, max= 26, avg=10.56, stdev= 6.40, samples=66 write: IOPS=11, BW=182KiB/s (186kB/s)(6256KiB/34366msec); 0 zone resets clat (msec): min=20, max=270, avg=67.64, stdev=33.15 lat (msec): min=20, max=270, avg=67.65, stdev=33.15 clat percentiles (msec): | 1.00th=[ 27], 5.00th=[ 32], 10.00th=[ 35], 20.00th=[ 43], | 30.00th=[ 47], 40.00th=[ 53], 50.00th=[ 58], 60.00th=[ 68], | 70.00th=[ 79], 80.00th=[ 89], 90.00th=[ 110], 95.00th=[ 129], | 99.00th=[ 209], 99.50th=[ 228], 99.90th=[ 271], 99.95th=[ 271], | 99.99th=[ 271] bw ( KiB/s): min= 31, max= 383, per=24.92%, avg=181.69, stdev=81.34, samples=68 iops : min= 1, max= 23, avg=10.72, stdev= 5.15, samples=68 lat (msec) : 10=14.45%, 20=21.74%, 50=26.82%, 100=29.30%, 250=7.55% lat (msec) : 500=0.13% cpu : usr=0.05%, sys=3.29%, ctx=1513, 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=694KiB/s (710kB/s), 166KiB/s-185KiB/s (170kB/s-189kB/s), io=23.4MiB (24.5MB), run=33814-34531msec WRITE: bw=730KiB/s (747kB/s), 178KiB/s-190KiB/s (183kB/s-194kB/s), io=24.6MiB (25.8MB), run=33814-34531msec 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=147699: Wed Feb 18 03:20:08 2026 read: IOPS=1, BW=1039KiB/s (1064kB/s)(7168KiB/6897msec) clat (usec): min=748, max=2509.9k, avg=894815.62, stdev=1098608.53 lat (usec): min=750, max=2509.9k, avg=894816.77, stdev=1098608.77 clat percentiles (usec): | 1.00th=[ 750], 5.00th=[ 750], 10.00th=[ 750], | 20.00th=[ 865], 30.00th=[ 1172], 40.00th=[ 1172], | 50.00th=[ 147850], 60.00th=[1669333], 70.00th=[1669333], | 80.00th=[1937769], 90.00th=[2499806], 95.00th=[2499806], | 99.00th=[2499806], 99.50th=[2499806], 99.90th=[2499806], | 99.95th=[2499806], 99.99th=[2499806] bw ( KiB/s): min= 1976, max= 6144, per=100.00%, avg=3374.33, stdev=2398.64, samples=3 iops : min= 1, max= 6, avg= 2.67, stdev= 2.89, samples=3 write: IOPS=0, BW=742KiB/s (760kB/s)(5120KiB/6897msec); 0 zone resets clat (msec): min=61, max=245, avg=119.46, stdev=78.75 lat (msec): min=61, max=245, avg=119.53, stdev=78.74 clat percentiles (msec): | 1.00th=[ 62], 5.00th=[ 62], 10.00th=[ 62], 20.00th=[ 62], | 30.00th=[ 68], 40.00th=[ 68], 50.00th=[ 75], 60.00th=[ 75], | 70.00th=[ 148], 80.00th=[ 148], 90.00th=[ 247], 95.00th=[ 247], | 99.00th=[ 247], 99.50th=[ 247], 99.90th=[ 247], 99.95th=[ 247], | 99.99th=[ 247] bw ( KiB/s): min= 8192, max= 8192, per=100.00%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 8, max= 8, avg= 8.00, stdev= 0.00, samples=1 lat (usec) : 750=8.33%, 1000=8.33% lat (msec) : 2=8.33%, 100=25.00%, 250=25.00%, 2000=16.67%, >=2000=8.33% cpu : usr=0.00%, sys=10.54%, ctx=1540, 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=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=147700: Wed Feb 18 03:20:08 2026 read: IOPS=0, BW=276KiB/s (283kB/s)(2048KiB/7421msec) clat (msec): min=113, max=138, avg=125.84, stdev=17.72 lat (msec): min=113, max=138, avg=125.85, stdev=17.73 clat percentiles (msec): | 1.00th=[ 114], 5.00th=[ 114], 10.00th=[ 114], 20.00th=[ 114], | 30.00th=[ 114], 40.00th=[ 114], 50.00th=[ 114], 60.00th=[ 138], | 70.00th=[ 138], 80.00th=[ 138], 90.00th=[ 138], 95.00th=[ 138], | 99.00th=[ 138], 99.50th=[ 138], 99.90th=[ 138], 99.95th=[ 138], | 99.99th=[ 138] bw ( KiB/s): min= 1872, max= 2048, per=71.04%, avg=1960.00, stdev=124.45, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 write: IOPS=1, BW=1380KiB/s (1413kB/s)(10.0MiB/7421msec); 0 zone resets clat (msec): min=71, max=3679, avg=703.56, stdev=1194.16 lat (msec): min=71, max=3679, avg=703.63, stdev=1194.15 clat percentiles (msec): | 1.00th=[ 72], 5.00th=[ 72], 10.00th=[ 72], 20.00th=[ 100], | 30.00th=[ 128], 40.00th=[ 186], 50.00th=[ 190], 60.00th=[ 213], | 70.00th=[ 218], 80.00th=[ 257], 90.00th=[ 1989], 95.00th=[ 3675], | 99.00th=[ 3675], 99.50th=[ 3675], 99.90th=[ 3675], 99.95th=[ 3675], | 99.99th=[ 3675] bw ( KiB/s): min= 1976, max= 6144, per=100.00%, avg=4078.00, stdev=2385.79, samples=4 iops : min= 1, max= 6, avg= 3.75, stdev= 2.63, samples=4 lat (msec) : 100=16.67%, 250=58.33%, 500=8.33%, 2000=8.33%, >=2000=8.33% cpu : usr=0.01%, sys=10.15%, ctx=298, 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=147701: Wed Feb 18 03:20:08 2026 read: IOPS=0, BW=893KiB/s (914kB/s)(6144KiB/6880msec) clat (usec): min=1046, max=251910, avg=117058.34, stdev=86503.22 lat (usec): min=1047, max=251911, avg=117060.56, stdev=86502.97 clat percentiles (usec): | 1.00th=[ 1045], 5.00th=[ 1045], 10.00th=[ 1045], 20.00th=[ 65274], | 30.00th=[ 65274], 40.00th=[ 98042], 50.00th=[ 98042], 60.00th=[115868], | 70.00th=[168821], 80.00th=[168821], 90.00th=[252707], 95.00th=[252707], | 99.00th=[252707], 99.50th=[252707], 99.90th=[252707], 99.95th=[252707], | 99.99th=[252707] bw ( KiB/s): min= 2048, max= 6144, per=100.00%, avg=4096.00, stdev=2896.31, samples=2 iops : min= 2, max= 6, avg= 4.00, stdev= 2.83, samples=2 write: IOPS=0, BW=893KiB/s (914kB/s)(6144KiB/6880msec); 0 zone resets clat (msec): min=84, max=3826, avg=999.39, stdev=1527.90 lat (msec): min=84, max=3826, avg=999.47, stdev=1527.96 clat percentiles (msec): | 1.00th=[ 85], 5.00th=[ 85], 10.00th=[ 85], 20.00th=[ 114], | 30.00th=[ 114], 40.00th=[ 114], 50.00th=[ 114], 60.00th=[ 134], | 70.00th=[ 1720], 80.00th=[ 1720], 90.00th=[ 3842], 95.00th=[ 3842], | 99.00th=[ 3842], 99.50th=[ 3842], 99.90th=[ 3842], 99.95th=[ 3842], | 99.99th=[ 3842] bw ( KiB/s): min= 2048, max= 4096, per=84.57%, avg=3267.00, stdev=1078.26, samples=3 iops : min= 2, max= 4, avg= 3.00, stdev= 1.00, samples=3 lat (msec) : 2=8.33%, 100=25.00%, 250=41.67%, 500=8.33%, 2000=8.33% lat (msec) : >=2000=8.33% cpu : usr=0.01%, sys=9.70%, ctx=430, 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=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=147702: Wed Feb 18 03:20:08 2026 read: IOPS=0, BW=711KiB/s (728kB/s)(5120KiB/7205msec) clat (usec): min=704, max=97821, avg=36659.11, stdev=49257.31 lat (usec): min=705, max=97822, avg=36660.15, stdev=49257.18 clat percentiles (usec): | 1.00th=[ 701], 5.00th=[ 701], 10.00th=[ 701], 20.00th=[ 701], | 30.00th=[ 717], 40.00th=[ 717], 50.00th=[ 1270], 60.00th=[ 1270], | 70.00th=[82314], 80.00th=[82314], 90.00th=[98042], 95.00th=[98042], | 99.00th=[98042], 99.50th=[98042], 99.90th=[98042], 99.95th=[98042], | 99.99th=[98042] bw ( KiB/s): min= 8192, max= 8192, per=100.00%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 8, max= 8, avg= 8.00, stdev= 0.00, samples=1 write: IOPS=0, BW=995KiB/s (1019kB/s)(7168KiB/7205msec); 0 zone resets clat (msec): min=77, max=3928, avg=984.12, stdev=1448.54 lat (msec): min=77, max=3928, avg=984.18, stdev=1448.54 clat percentiles (msec): | 1.00th=[ 79], 5.00th=[ 79], 10.00th=[ 79], 20.00th=[ 153], | 30.00th=[ 174], 40.00th=[ 174], 50.00th=[ 305], 60.00th=[ 338], | 70.00th=[ 338], 80.00th=[ 1921], 90.00th=[ 3943], 95.00th=[ 3943], | 99.00th=[ 3943], 99.50th=[ 3943], 99.90th=[ 3943], 99.95th=[ 3943], | 99.99th=[ 3943] bw ( KiB/s): min= 1868, max= 4096, per=65.07%, avg=2513.75, stdev=1058.15, samples=4 iops : min= 1, max= 4, avg= 2.00, stdev= 1.41, samples=4 lat (usec) : 750=16.67% lat (msec) : 2=8.33%, 100=25.00%, 250=16.67%, 500=16.67%, 2000=8.33% lat (msec) : >=2000=8.33% cpu : usr=0.00%, sys=8.19%, ctx=313, 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=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=2760KiB/s (2826kB/s), 276KiB/s-1039KiB/s (283kB/s-1064kB/s), io=20.0MiB (20.0MB), run=6880-7421msec WRITE: bw=3864KiB/s (3956kB/s), 742KiB/s-1380KiB/s (760kB/s-1413kB/s), io=28.0MiB (29.4MB), run=6880-7421msec rand-rw: (groupid=0, jobs=1): err= 0: pid=147694: Wed Feb 18 03:20:08 2026 read: IOPS=0, BW=933KiB/s (955kB/s)(7168KiB/7685msec) clat (msec): min=31, max=2496, avg=945.04, stdev=1099.11 lat (msec): min=31, max=2496, avg=945.04, stdev=1099.11 clat percentiles (msec): | 1.00th=[ 32], 5.00th=[ 32], 10.00th=[ 32], 20.00th=[ 57], | 30.00th=[ 94], 40.00th=[ 94], 50.00th=[ 136], 60.00th=[ 1838], | 70.00th=[ 1838], 80.00th=[ 1972], 90.00th=[ 2500], 95.00th=[ 2500], | 99.00th=[ 2500], 99.50th=[ 2500], 99.90th=[ 2500], 99.95th=[ 2500], | 99.99th=[ 2500] bw ( KiB/s): min= 1969, max= 4047, per=90.98%, avg=2423.60, stdev=908.06, samples=5 iops : min= 1, max= 3, avg= 1.60, stdev= 0.89, samples=5 write: IOPS=0, BW=666KiB/s (682kB/s)(5120KiB/7685msec); 0 zone resets clat (msec): min=122, max=247, avg=183.90, stdev=52.70 lat (msec): min=122, max=247, avg=183.97, stdev=52.69 clat percentiles (msec): | 1.00th=[ 123], 5.00th=[ 123], 10.00th=[ 123], 20.00th=[ 123], | 30.00th=[ 140], 40.00th=[ 140], 50.00th=[ 192], 60.00th=[ 192], | 70.00th=[ 220], 80.00th=[ 220], 90.00th=[ 249], 95.00th=[ 249], | 99.00th=[ 249], 99.50th=[ 249], 99.90th=[ 249], 99.95th=[ 249], | 99.99th=[ 249] bw ( KiB/s): min= 2011, max= 6144, per=90.96%, avg=3392.67, stdev=2382.73, samples=3 iops : min= 1, max= 6, avg= 2.67, stdev= 2.89, samples=3 lat (msec) : 50=8.33%, 100=16.67%, 250=50.00%, 2000=16.67%, >=2000=8.33% cpu : usr=0.04%, sys=3.38%, ctx=71, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=147695: Wed Feb 18 03:20:08 2026 read: IOPS=0, BW=276KiB/s (283kB/s)(2048KiB/7422msec) clat (msec): min=75, max=118, avg=97.12, stdev=30.89 lat (msec): min=75, max=118, avg=97.12, stdev=30.89 clat percentiles (msec): | 1.00th=[ 75], 5.00th=[ 75], 10.00th=[ 75], 20.00th=[ 75], | 30.00th=[ 75], 40.00th=[ 75], 50.00th=[ 75], 60.00th=[ 120], | 70.00th=[ 120], 80.00th=[ 120], 90.00th=[ 120], 95.00th=[ 120], | 99.00th=[ 120], 99.50th=[ 120], 99.90th=[ 120], 99.95th=[ 120], | 99.99th=[ 120] bw ( KiB/s): min= 1805, max= 1988, per=71.19%, avg=1896.50, stdev=129.40, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1380KiB/s (1413kB/s)(10.0MiB/7422msec); 0 zone resets clat (msec): min=94, max=3638, avg=707.21, stdev=1177.11 lat (msec): min=94, max=3638, avg=707.29, stdev=1177.11 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 95], 10.00th=[ 95], 20.00th=[ 150], | 30.00th=[ 153], 40.00th=[ 157], 50.00th=[ 161], 60.00th=[ 165], | 70.00th=[ 190], 80.00th=[ 388], 90.00th=[ 1972], 95.00th=[ 3641], | 99.00th=[ 3641], 99.50th=[ 3641], 99.90th=[ 3641], 99.95th=[ 3641], | 99.99th=[ 3641] bw ( KiB/s): min= 3938, max= 4096, per=100.00%, avg=4004.25, stdev=67.36, samples=4 iops : min= 3, max= 4, avg= 3.25, stdev= 0.50, samples=4 lat (msec) : 100=16.67%, 250=58.33%, 500=8.33%, 2000=8.33%, >=2000=8.33% cpu : usr=0.01%, sys=3.68%, ctx=82, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=147696: Wed Feb 18 03:20:08 2026 read: IOPS=0, BW=904KiB/s (926kB/s)(6144KiB/6796msec) clat (msec): min=82, max=146, avg=115.73, stdev=27.61 lat (msec): min=82, max=146, avg=115.73, stdev=27.61 clat percentiles (msec): | 1.00th=[ 83], 5.00th=[ 83], 10.00th=[ 83], 20.00th=[ 94], | 30.00th=[ 94], 40.00th=[ 99], 50.00th=[ 99], 60.00th=[ 133], | 70.00th=[ 142], 80.00th=[ 142], 90.00th=[ 146], 95.00th=[ 146], | 99.00th=[ 146], 99.50th=[ 146], 99.90th=[ 146], 99.95th=[ 146], | 99.99th=[ 146] bw ( KiB/s): min= 2003, max= 5907, per=100.00%, avg=3307.00, stdev=2251.67, samples=3 iops : min= 1, max= 5, avg= 2.33, stdev= 2.31, samples=3 write: IOPS=0, BW=904KiB/s (926kB/s)(6144KiB/6796msec); 0 zone resets clat (msec): min=88, max=3669, avg=1012.10, stdev=1469.58 lat (msec): min=89, max=3669, avg=1012.16, stdev=1469.58 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 89], 10.00th=[ 89], 20.00th=[ 136], | 30.00th=[ 136], 40.00th=[ 140], 50.00th=[ 140], 60.00th=[ 199], | 70.00th=[ 1838], 80.00th=[ 1838], 90.00th=[ 3675], 95.00th=[ 3675], | 99.00th=[ 3675], 99.50th=[ 3675], 99.90th=[ 3675], 99.95th=[ 3675], | 99.99th=[ 3675] bw ( KiB/s): min= 1969, max= 3561, per=63.97%, avg=2386.00, stdev=783.54, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (msec) : 100=33.33%, 250=50.00%, 2000=8.33%, >=2000=8.33% cpu : usr=0.00%, sys=3.19%, ctx=72, 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=147698: Wed Feb 18 03:20:08 2026 read: IOPS=0, BW=706KiB/s (723kB/s)(5120KiB/7254msec) clat (msec): min=68, max=180, avg=140.05, stdev=44.30 lat (msec): min=68, max=180, avg=140.05, stdev=44.30 clat percentiles (msec): | 1.00th=[ 69], 5.00th=[ 69], 10.00th=[ 69], 20.00th=[ 69], | 30.00th=[ 128], 40.00th=[ 128], 50.00th=[ 157], 60.00th=[ 157], | 70.00th=[ 167], 80.00th=[ 167], 90.00th=[ 182], 95.00th=[ 182], | 99.00th=[ 182], 99.50th=[ 182], 99.90th=[ 182], 99.95th=[ 182], | 99.99th=[ 182] bw ( KiB/s): min= 1969, max= 5965, per=100.00%, avg=3967.00, stdev=2825.60, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=0, BW=988KiB/s (1012kB/s)(7168KiB/7254msec); 0 zone resets clat (msec): min=118, max=3621, avg=907.67, stdev=1371.64 lat (msec): min=118, max=3621, avg=907.74, stdev=1371.65 clat percentiles (msec): | 1.00th=[ 118], 5.00th=[ 118], 10.00th=[ 118], 20.00th=[ 136], | 30.00th=[ 144], 40.00th=[ 144], 50.00th=[ 161], 60.00th=[ 224], | 70.00th=[ 224], 80.00th=[ 1955], 90.00th=[ 3608], 95.00th=[ 3608], | 99.00th=[ 3608], 99.50th=[ 3608], 99.90th=[ 3608], 99.95th=[ 3608], | 99.99th=[ 3608] bw ( KiB/s): min= 1790, max= 4047, per=78.94%, avg=2944.50, stdev=1214.06, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 lat (msec) : 100=8.33%, 250=75.00%, 2000=8.33%, >=2000=8.33% cpu : usr=0.00%, sys=3.53%, ctx=85, 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=2665KiB/s (2729kB/s), 276KiB/s-933KiB/s (283kB/s-955kB/s), io=20.0MiB (20.0MB), run=6796-7685msec WRITE: bw=3731KiB/s (3820kB/s), 666KiB/s-1380KiB/s (682kB/s-1413kB/s), io=28.0MiB (29.4MB), run=6796-7685msec 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=147711: Wed Feb 18 03:20:16 2026 read: IOPS=1, BW=5980KiB/s (6123kB/s)(12.0MiB/2055msec) clat (msec): min=296, max=890, avg=674.65, stdev=328.33 lat (msec): min=296, max=890, avg=674.65, stdev=328.33 clat percentiles (msec): | 1.00th=[ 296], 5.00th=[ 296], 10.00th=[ 296], 20.00th=[ 296], | 30.00th=[ 296], 40.00th=[ 835], 50.00th=[ 835], 60.00th=[ 835], | 70.00th=[ 894], 80.00th=[ 894], 90.00th=[ 894], 95.00th=[ 894], | 99.00th=[ 894], 99.50th=[ 894], 99.90th=[ 894], 99.95th=[ 894], | 99.99th=[ 894] bw ( KiB/s): min= 8015, max= 8015, per=100.00%, avg=8015.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 1000=66.67% cpu : usr=0.00%, sys=7.74%, ctx=47, 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=147712: Wed Feb 18 03:20:16 2026 read: IOPS=0, BW=1950KiB/s (1996kB/s)(4096KiB/2101msec) clat (nsec): min=1060.4M, max=1060.4M, avg=1060434715.00, stdev= 0.00 lat (nsec): min=1060.4M, max=1060.4M, avg=1060437205.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1062], 5.00th=[ 1062], 10.00th=[ 1062], 20.00th=[ 1062], | 30.00th=[ 1062], 40.00th=[ 1062], 50.00th=[ 1062], 60.00th=[ 1062], | 70.00th=[ 1062], 80.00th=[ 1062], 90.00th=[ 1062], 95.00th=[ 1062], | 99.00th=[ 1062], 99.50th=[ 1062], 99.90th=[ 1062], 99.95th=[ 1062], | 99.99th=[ 1062] bw ( KiB/s): min= 8143, max= 8143, per=100.00%, avg=8143.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3899KiB/s (3993kB/s)(8192KiB/2101msec); 0 zone resets clat (msec): min=164, max=757, avg=460.57, stdev=419.39 lat (msec): min=164, max=757, avg=461.13, stdev=419.71 clat percentiles (msec): | 1.00th=[ 165], 5.00th=[ 165], 10.00th=[ 165], 20.00th=[ 165], | 30.00th=[ 165], 40.00th=[ 165], 50.00th=[ 165], 60.00th=[ 760], | 70.00th=[ 760], 80.00th=[ 760], 90.00th=[ 760], 95.00th=[ 760], | 99.00th=[ 760], 99.50th=[ 760], 99.90th=[ 760], 99.95th=[ 760], | 99.99th=[ 760] lat (msec) : 250=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.05%, sys=8.43%, ctx=54, 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=147714: Wed Feb 18 03:20:16 2026 write: IOPS=1, BW=6785KiB/s (6948kB/s)(12.0MiB/1811msec); 0 zone resets clat (msec): min=504, max=655, avg=586.69, stdev=76.54 lat (msec): min=504, max=656, avg=587.29, stdev=76.92 clat percentiles (msec): | 1.00th=[ 506], 5.00th=[ 506], 10.00th=[ 506], 20.00th=[ 506], | 30.00th=[ 506], 40.00th=[ 600], 50.00th=[ 600], 60.00th=[ 600], | 70.00th=[ 659], 80.00th=[ 659], 90.00th=[ 659], 95.00th=[ 659], | 99.00th=[ 659], 99.50th=[ 659], 99.90th=[ 659], 99.95th=[ 659], | 99.99th=[ 659] bw ( KiB/s): min= 8015, max= 8143, per=51.80%, avg=8079.00, stdev=90.51, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=100.00% cpu : usr=0.00%, sys=19.61%, ctx=88, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=147716: Wed Feb 18 03:20:16 2026 write: IOPS=1, BW=7787KiB/s (7974kB/s)(12.0MiB/1578msec); 0 zone resets clat (msec): min=344, max=785, avg=508.74, stdev=241.43 lat (msec): min=344, max=786, avg=509.00, stdev=241.47 clat percentiles (msec): | 1.00th=[ 347], 5.00th=[ 347], 10.00th=[ 347], 20.00th=[ 347], | 30.00th=[ 347], 40.00th=[ 397], 50.00th=[ 397], 60.00th=[ 397], | 70.00th=[ 785], 80.00th=[ 785], 90.00th=[ 785], 95.00th=[ 785], | 99.00th=[ 785], 99.50th=[ 785], 99.90th=[ 785], 99.95th=[ 785], | 99.99th=[ 785] bw ( KiB/s): min= 6681, max= 8015, per=47.11%, avg=7348.00, stdev=943.28, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=66.67%, 1000=33.33% cpu : usr=0.06%, sys=8.88%, ctx=66, 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=7798KiB/s (7985kB/s), 1950KiB/s-5980KiB/s (1996kB/s-6123kB/s), io=16.0MiB (16.8MB), run=2055-2101msec WRITE: bw=15.2MiB/s (15.0MB/s), 3899KiB/s-7787KiB/s (3993kB/s-7974kB/s), io=32.0MiB (33.6MB), run=1578-2101msec rand-rw: (groupid=0, jobs=1): err= 0: pid=147709: Wed Feb 18 03:20:16 2026 read: IOPS=1, BW=6962KiB/s (7129kB/s)(12.0MiB/1765msec) clat (msec): min=491, max=577, avg=545.52, stdev=47.39 lat (msec): min=491, max=577, avg=545.52, stdev=47.39 clat percentiles (msec): | 1.00th=[ 493], 5.00th=[ 493], 10.00th=[ 493], 20.00th=[ 493], | 30.00th=[ 493], 40.00th=[ 567], 50.00th=[ 567], 60.00th=[ 567], | 70.00th=[ 575], 80.00th=[ 575], 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= 5893, max= 8094, per=75.34%, avg=6993.50, stdev=1556.34, 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=0.00%, sys=30.39%, ctx=1185, 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=147710: Wed Feb 18 03:20:16 2026 read: IOPS=0, BW=2333KiB/s (2389kB/s)(4096KiB/1756msec) clat (nsec): min=493000k, max=493000k, avg=492999744.00, stdev= 0.00 lat (nsec): min=493003k, max=493003k, avg=493003041.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 493], 5.00th=[ 493], 10.00th=[ 493], 20.00th=[ 493], | 30.00th=[ 493], 40.00th=[ 493], 50.00th=[ 493], 60.00th=[ 493], | 70.00th=[ 493], 80.00th=[ 493], 90.00th=[ 493], 95.00th=[ 493], | 99.00th=[ 493], 99.50th=[ 493], 99.90th=[ 493], 99.95th=[ 493], | 99.99th=[ 493] bw ( KiB/s): min= 6113, max= 6113, per=65.86%, avg=6113.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=1, BW=4665KiB/s (4777kB/s)(8192KiB/1756msec); 0 zone resets clat (msec): min=209, max=953, avg=581.79, stdev=525.80 lat (msec): min=210, max=953, avg=582.02, stdev=525.93 clat percentiles (msec): | 1.00th=[ 211], 5.00th=[ 211], 10.00th=[ 211], 20.00th=[ 211], | 30.00th=[ 211], 40.00th=[ 211], 50.00th=[ 211], 60.00th=[ 953], | 70.00th=[ 953], 80.00th=[ 953], 90.00th=[ 953], 95.00th=[ 953], | 99.00th=[ 953], 99.50th=[ 953], 99.90th=[ 953], 99.95th=[ 953], | 99.99th=[ 953] bw ( KiB/s): min= 8094, max= 8094, per=53.13%, avg=8094.00, 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%, 1000=33.33% cpu : usr=0.06%, sys=12.14%, ctx=316, 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=147713: Wed Feb 18 03:20:16 2026 write: IOPS=1, BW=5713KiB/s (5850kB/s)(12.0MiB/2151msec); 0 zone resets clat (msec): min=297, max=943, avg=694.78, stdev=347.70 lat (msec): min=297, max=944, avg=695.10, stdev=347.72 clat percentiles (msec): | 1.00th=[ 296], 5.00th=[ 296], 10.00th=[ 296], 20.00th=[ 296], | 30.00th=[ 296], 40.00th=[ 844], 50.00th=[ 844], 60.00th=[ 844], | 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= 8094, max= 8175, per=53.40%, avg=8134.50, stdev=57.28, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 1000=66.67% cpu : usr=0.09%, sys=6.14%, ctx=42, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=147715: Wed Feb 18 03:20:16 2026 write: IOPS=2, BW=8225KiB/s (8422kB/s)(12.0MiB/1494msec); 0 zone resets clat (msec): min=185, max=917, avg=465.59, stdev=395.42 lat (msec): min=185, max=918, avg=465.85, stdev=395.32 clat percentiles (msec): | 1.00th=[ 186], 5.00th=[ 186], 10.00th=[ 186], 20.00th=[ 186], | 30.00th=[ 186], 40.00th=[ 292], 50.00th=[ 292], 60.00th=[ 292], | 70.00th=[ 919], 80.00th=[ 919], 90.00th=[ 919], 95.00th=[ 919], | 99.00th=[ 919], 99.50th=[ 919], 99.90th=[ 919], 99.95th=[ 919], | 99.99th=[ 919] bw ( KiB/s): min=12263, max=12263, per=80.50%, avg=12263.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 500=33.33%, 1000=33.33% cpu : usr=0.00%, sys=11.59%, ctx=66, 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=9283KiB/s (9506kB/s), 2333KiB/s-6962KiB/s (2389kB/s-7129kB/s), io=16.0MiB (16.8MB), run=1756-1765msec WRITE: bw=14.9MiB/s (15.6MB/s), 4665KiB/s-8225KiB/s (4777kB/s-8422kB/s), io=32.0MiB (33.6MB), run=1494-2151msec