== sanity test 398b: DIO and buffer IO race ============== 11:45:05 (1787845505) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 6.17666 s, 8.1 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=178836: Thu Aug 27 11:47:28 2026 read: IOPS=12, BW=48.3KiB/s (49.5kB/s)(5992KiB/124031msec) clat (usec): min=44, max=894098, avg=45785.75, stdev=37284.12 lat (usec): min=45, max=894100, avg=45787.93, stdev=37284.06 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 1172], 10.00th=[ 16581], 20.00th=[ 23200], | 30.00th=[ 27919], 40.00th=[ 33424], 50.00th=[ 38536], 60.00th=[ 45876], | 70.00th=[ 54789], 80.00th=[ 65274], 90.00th=[ 80217], 95.00th=[ 98042], | 99.00th=[141558], 99.50th=[164627], 99.90th=[283116], 99.95th=[893387], | 99.99th=[893387] bw ( KiB/s): min= 15, max= 103, per=24.93%, avg=48.12, stdev=17.75, samples=243 iops : min= 3, max= 25, avg=11.38, stdev= 4.46, samples=243 write: IOPS=12, BW=50.8KiB/s (51.0kB/s)(6296KiB/124031msec); 0 zone resets clat (usec): min=960, max=334998, avg=34837.55, stdev=36344.80 lat (usec): min=962, max=335000, avg=34840.64, stdev=36345.18 clat percentiles (usec): | 1.00th=[ 1123], 5.00th=[ 1287], 10.00th=[ 1713], 20.00th=[ 3982], | 30.00th=[ 7767], 40.00th=[ 15664], 50.00th=[ 24773], 60.00th=[ 33424], | 70.00th=[ 44303], 80.00th=[ 59507], 90.00th=[ 85459], 95.00th=[106431], | 99.00th=[149947], 99.50th=[173016], 99.90th=[225444], 99.95th=[333448], | 99.99th=[333448] bw ( KiB/s): min= 7, max= 119, per=25.00%, avg=50.50, stdev=21.57, samples=243 iops : min= 1, max= 29, avg=11.98, stdev= 5.45, samples=243 lat (usec) : 50=0.26%, 100=1.86%, 250=0.23%, 750=0.07%, 1000=0.10% lat (msec) : 2=6.02%, 4=4.33%, 10=7.36%, 20=9.41%, 50=39.84% lat (msec) : 100=24.97%, 250=5.37%, 500=0.16%, 1000=0.03% cpu : usr=0.09%, sys=5.53%, ctx=6559, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178837: Thu Aug 27 11:47:28 2026 read: IOPS=12, BW=48.8KiB/s (49.9kB/s)(5940KiB/121834msec) clat (usec): min=37, max=922638, avg=44844.83, stdev=35710.22 lat (usec): min=38, max=922640, avg=44849.97, stdev=35712.13 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 120], 10.00th=[ 16319], 20.00th=[ 23200], | 30.00th=[ 28443], 40.00th=[ 33817], 50.00th=[ 39584], 60.00th=[ 45876], | 70.00th=[ 54264], 80.00th=[ 64226], 90.00th=[ 79168], 95.00th=[ 94897], | 99.00th=[141558], 99.50th=[152044], 99.90th=[204473], 99.95th=[918553], | 99.99th=[918553] bw ( KiB/s): min= 7, max= 103, per=25.20%, avg=48.63, stdev=17.73, samples=239 iops : min= 1, max= 25, avg=11.51, stdev= 4.46, samples=239 write: IOPS=13, BW=52.1KiB/s (53.4kB/s)(6348KiB/121834msec); 0 zone resets clat (usec): min=987, max=233007, avg=34399.67, stdev=35155.48 lat (usec): min=989, max=233008, avg=34408.54, stdev=35161.52 clat percentiles (usec): | 1.00th=[ 1156], 5.00th=[ 1336], 10.00th=[ 1860], 20.00th=[ 3818], | 30.00th=[ 7177], 40.00th=[ 15270], 50.00th=[ 25035], 60.00th=[ 35390], | 70.00th=[ 43779], 80.00th=[ 59507], 90.00th=[ 80217], 95.00th=[104334], | 99.00th=[154141], 99.50th=[168821], 99.90th=[231736], 99.95th=[233833], | 99.99th=[233833] bw ( KiB/s): min= 7, max= 118, per=25.85%, avg=52.21, stdev=21.09, samples=238 iops : min= 1, max= 29, avg=12.41, stdev= 5.30, samples=238 lat (usec) : 50=0.33%, 100=1.99%, 250=0.20%, 750=0.07%, 1000=0.07% lat (msec) : 2=5.76%, 4=4.92%, 10=7.45%, 20=9.67%, 50=39.65% lat (msec) : 100=24.97%, 250=4.92%, 1000=0.03% cpu : usr=0.09%, sys=5.43%, ctx=6560, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178838: Thu Aug 27 11:47:28 2026 read: IOPS=12, BW=48.0KiB/s (50.2kB/s)(6028KiB/123030msec) clat (usec): min=41, max=1048.6k, avg=45383.82, stdev=39378.84 lat (usec): min=41, max=1048.6k, avg=45387.44, stdev=39379.38 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 149], 10.00th=[ 15926], | 20.00th=[ 22414], 30.00th=[ 27919], 40.00th=[ 33424], | 50.00th=[ 39584], 60.00th=[ 46400], 70.00th=[ 54789], | 80.00th=[ 64750], 90.00th=[ 80217], 95.00th=[ 95945], | 99.00th=[ 135267], 99.50th=[ 179307], 99.90th=[ 350225], | 99.95th=[1052771], 99.99th=[1052771] bw ( KiB/s): min= 7, max= 127, per=25.28%, avg=48.79, stdev=18.93, samples=241 iops : min= 1, max= 31, avg=11.54, stdev= 4.76, samples=241 write: IOPS=12, BW=50.9KiB/s (52.1kB/s)(6260KiB/123030msec); 0 zone resets clat (usec): min=979, max=404583, avg=34610.40, stdev=36855.71 lat (usec): min=980, max=404585, avg=34614.77, stdev=36854.05 clat percentiles (usec): | 1.00th=[ 1106], 5.00th=[ 1303], 10.00th=[ 1778], 20.00th=[ 3752], | 30.00th=[ 6915], 40.00th=[ 13173], 50.00th=[ 23987], 60.00th=[ 34866], | 70.00th=[ 45876], 80.00th=[ 60031], 90.00th=[ 84411], 95.00th=[108528], | 99.00th=[141558], 99.50th=[175113], 99.90th=[265290], 99.95th=[404751], | 99.99th=[404751] bw ( KiB/s): min= 7, max= 127, per=24.92%, avg=50.34, stdev=22.48, samples=242 iops : min= 1, max= 31, avg=11.93, stdev= 5.64, samples=242 lat (usec) : 50=0.26%, 100=1.95%, 250=0.33%, 750=0.07%, 1000=0.10% lat (msec) : 2=5.96%, 4=4.88%, 10=8.20%, 20=9.18%, 50=37.96% lat (msec) : 100=25.65%, 250=5.31%, 500=0.13%, 2000=0.03% cpu : usr=0.08%, sys=5.21%, ctx=6448, 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=178839: Thu Aug 27 11:47:28 2026 read: IOPS=12, BW=49.5KiB/s (50.6kB/s)(6052KiB/122383msec) clat (usec): min=40, max=255067, avg=43965.93, stdev=29094.73 lat (usec): min=40, max=255068, avg=43967.68, stdev=29095.04 clat percentiles (usec): | 1.00th=[ 55], 5.00th=[ 125], 10.00th=[ 15401], 20.00th=[ 22414], | 30.00th=[ 27132], 40.00th=[ 31851], 50.00th=[ 37487], 60.00th=[ 44827], | 70.00th=[ 53216], 80.00th=[ 64226], 90.00th=[ 81265], 95.00th=[100140], | 99.00th=[133694], 99.50th=[162530], 99.90th=[193987], 99.95th=[254804], | 99.99th=[254804] bw ( KiB/s): min= 15, max= 119, per=25.77%, avg=49.74, stdev=19.41, samples=238 iops : min= 3, max= 29, avg=11.79, stdev= 4.90, samples=238 write: IOPS=12, BW=50.0KiB/s (52.2kB/s)(6236KiB/122383msec); 0 zone resets clat (usec): min=1051, max=1161.3k, avg=35537.16, stdev=46229.83 lat (usec): min=1052, max=1161.4k, avg=35539.91, stdev=46229.53 clat percentiles (usec): | 1.00th=[ 1139], 5.00th=[ 1319], 10.00th=[ 2114], | 20.00th=[ 4424], 30.00th=[ 7177], 40.00th=[ 14222], | 50.00th=[ 24249], 60.00th=[ 34341], 70.00th=[ 45876], | 80.00th=[ 61080], 90.00th=[ 83362], 95.00th=[ 105382], | 99.00th=[ 160433], 99.50th=[ 173016], 99.90th=[ 396362], | 99.95th=[1166017], 99.99th=[1166017] bw ( KiB/s): min= 7, max= 149, per=25.12%, avg=50.75, stdev=22.03, samples=240 iops : min= 1, max= 37, avg=12.05, stdev= 5.56, samples=240 lat (usec) : 50=0.23%, 100=2.18%, 250=0.13%, 500=0.07%, 750=0.03% lat (usec) : 1000=0.03% lat (msec) : 2=4.92%, 4=4.39%, 10=9.15%, 20=9.54%, 50=39.19% lat (msec) : 100=24.32%, 250=5.70%, 500=0.10%, 2000=0.03% cpu : usr=0.10%, sys=5.41%, ctx=6547, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=194KiB/s (198kB/s), 48.3KiB/s-49.5KiB/s (49.5kB/s-50.6kB/s), io=23.4MiB (24.6MB), run=121834-124031msec WRITE: bw=203KiB/s (208kB/s), 50.8KiB/s-52.1KiB/s (51.0kB/s-53.4kB/s), io=24.6MiB (25.7MB), run=121834-124031msec rand-rw: (groupid=0, jobs=1): err= 0: pid=178832: Thu Aug 27 11:48:22 2026 read: IOPS=8, BW=33.7KiB/s (34.5kB/s)(5992KiB/177904msec) clat (msec): min=5, max=945, avg=46.60, stdev=45.07 lat (msec): min=5, max=945, avg=46.60, stdev=45.07 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 15], 20.00th=[ 20], | 30.00th=[ 24], 40.00th=[ 28], 50.00th=[ 33], 60.00th=[ 39], | 70.00th=[ 48], 80.00th=[ 66], 90.00th=[ 101], 95.00th=[ 129], | 99.00th=[ 192], 99.50th=[ 222], 99.90th=[ 266], 99.95th=[ 944], | 99.99th=[ 944] bw ( KiB/s): min= 7, max= 135, per=25.07%, avg=33.59, stdev=21.67, samples=347 iops : min= 1, max= 33, avg= 7.74, stdev= 5.43, samples=347 write: IOPS=8, BW=35.4KiB/s (36.2kB/s)(6296KiB/177904msec); 0 zone resets clat (msec): min=11, max=349, avg=68.34, stdev=42.54 lat (msec): min=11, max=349, avg=68.34, stdev=42.54 clat percentiles (msec): | 1.00th=[ 19], 5.00th=[ 26], 10.00th=[ 30], 20.00th=[ 36], | 30.00th=[ 43], 40.00th=[ 50], 50.00th=[ 56], 60.00th=[ 66], | 70.00th=[ 78], 80.00th=[ 95], 90.00th=[ 122], 95.00th=[ 150], | 99.00th=[ 226], 99.50th=[ 266], 99.90th=[ 338], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 7, max= 111, per=24.87%, avg=35.07, stdev=17.93, samples=349 iops : min= 1, max= 27, avg= 8.11, stdev= 4.50, samples=349 lat (msec) : 10=1.53%, 20=9.80%, 50=44.47%, 100=30.18%, 250=13.51% lat (msec) : 500=0.49%, 1000=0.03% cpu : usr=0.06%, sys=1.72%, ctx=4700, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178833: Thu Aug 27 11:48:22 2026 read: IOPS=8, BW=33.4KiB/s (34.2kB/s)(5940KiB/178098msec) clat (msec): min=6, max=1052, avg=44.71, stdev=44.07 lat (msec): min=6, max=1052, avg=44.72, stdev=44.07 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 15], 20.00th=[ 20], | 30.00th=[ 24], 40.00th=[ 28], 50.00th=[ 32], 60.00th=[ 39], | 70.00th=[ 48], 80.00th=[ 64], 90.00th=[ 92], 95.00th=[ 123], | 99.00th=[ 176], 99.50th=[ 207], 99.90th=[ 247], 99.95th=[ 1053], | 99.99th=[ 1053] bw ( KiB/s): min= 7, max= 109, per=25.17%, avg=33.72, stdev=20.71, samples=342 iops : min= 1, max= 27, avg= 7.77, stdev= 5.21, samples=342 write: IOPS=8, BW=35.6KiB/s (36.5kB/s)(6348KiB/178098msec); 0 zone resets clat (msec): min=10, max=341, avg=70.05, stdev=43.86 lat (msec): min=10, max=341, avg=70.05, stdev=43.86 clat percentiles (msec): | 1.00th=[ 20], 5.00th=[ 25], 10.00th=[ 30], 20.00th=[ 37], | 30.00th=[ 44], 40.00th=[ 50], 50.00th=[ 58], 60.00th=[ 68], | 70.00th=[ 80], 80.00th=[ 100], 90.00th=[ 127], 95.00th=[ 157], | 99.00th=[ 230], 99.50th=[ 253], 99.90th=[ 334], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 7, max= 103, per=25.17%, avg=35.50, stdev=18.13, samples=347 iops : min= 1, max= 25, avg= 8.21, stdev= 4.54, samples=347 lat (msec) : 10=1.33%, 20=10.09%, 50=44.43%, 100=30.37%, 250=13.44% lat (msec) : 500=0.29%, 2000=0.03% cpu : usr=0.06%, sys=1.74%, ctx=4739, 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=178834: Thu Aug 27 11:48:22 2026 read: IOPS=8, BW=34.0KiB/s (34.8kB/s)(6028KiB/177280msec) clat (msec): min=6, max=439, avg=45.25, stdev=38.01 lat (msec): min=6, max=439, avg=45.26, stdev=38.01 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 15], 20.00th=[ 20], | 30.00th=[ 24], 40.00th=[ 29], 50.00th=[ 34], 60.00th=[ 40], | 70.00th=[ 50], 80.00th=[ 64], 90.00th=[ 91], 95.00th=[ 124], | 99.00th=[ 184], 99.50th=[ 230], 99.90th=[ 275], 99.95th=[ 439], | 99.99th=[ 439] bw ( KiB/s): min= 7, max= 104, per=25.67%, avg=34.39, stdev=20.18, samples=340 iops : min= 1, max= 26, avg= 7.94, stdev= 5.07, samples=340 write: IOPS=8, BW=35.3KiB/s (36.2kB/s)(6260KiB/177280msec); 0 zone resets clat (msec): min=12, max=1062, avg=69.33, stdev=50.59 lat (msec): min=12, max=1062, avg=69.33, stdev=50.59 clat percentiles (msec): | 1.00th=[ 19], 5.00th=[ 26], 10.00th=[ 30], 20.00th=[ 36], | 30.00th=[ 43], 40.00th=[ 48], 50.00th=[ 55], 60.00th=[ 65], | 70.00th=[ 77], 80.00th=[ 95], 90.00th=[ 128], 95.00th=[ 163], | 99.00th=[ 226], 99.50th=[ 264], 99.90th=[ 330], 99.95th=[ 1062], | 99.99th=[ 1062] bw ( KiB/s): min= 7, max= 103, per=24.99%, avg=35.23, stdev=19.03, samples=345 iops : min= 1, max= 25, avg= 8.15, stdev= 4.78, samples=345 lat (msec) : 10=1.11%, 20=10.45%, 50=45.61%, 100=29.30%, 250=13.09% lat (msec) : 500=0.42%, 2000=0.03% cpu : usr=0.06%, sys=1.68%, ctx=4732, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178835: Thu Aug 27 11:48:22 2026 read: IOPS=8, BW=34.4KiB/s (35.2kB/s)(6052KiB/176172msec) clat (msec): min=6, max=437, avg=44.87, stdev=38.65 lat (msec): min=6, max=437, avg=44.88, stdev=38.65 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 15], 20.00th=[ 19], | 30.00th=[ 23], 40.00th=[ 27], 50.00th=[ 32], 60.00th=[ 39], | 70.00th=[ 47], 80.00th=[ 65], 90.00th=[ 96], 95.00th=[ 126], | 99.00th=[ 180], 99.50th=[ 205], 99.90th=[ 275], 99.95th=[ 439], | 99.99th=[ 439] bw ( KiB/s): min= 7, max= 119, per=26.19%, avg=35.10, stdev=21.85, samples=335 iops : min= 1, max= 29, avg= 8.12, stdev= 5.49, samples=335 write: IOPS=8, BW=35.4KiB/s (36.2kB/s)(6236KiB/176172msec); 0 zone resets clat (msec): min=13, max=1141, avg=69.12, stdev=49.52 lat (msec): min=13, max=1141, avg=69.13, stdev=49.52 clat percentiles (msec): | 1.00th=[ 20], 5.00th=[ 26], 10.00th=[ 29], 20.00th=[ 38], | 30.00th=[ 43], 40.00th=[ 49], 50.00th=[ 57], 60.00th=[ 66], | 70.00th=[ 79], 80.00th=[ 95], 90.00th=[ 125], 95.00th=[ 150], | 99.00th=[ 205], 99.50th=[ 275], 99.90th=[ 292], 99.95th=[ 1150], | 99.99th=[ 1150] bw ( KiB/s): min= 7, max= 103, per=25.03%, avg=35.29, stdev=18.46, samples=343 iops : min= 1, max= 25, avg= 8.16, stdev= 4.63, samples=343 lat (msec) : 10=1.37%, 20=10.71%, 50=44.99%, 100=29.72%, 250=12.76% lat (msec) : 500=0.42%, 2000=0.03% cpu : usr=0.06%, sys=1.75%, ctx=4760, 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=135KiB/s (138kB/s), 33.4KiB/s-34.4KiB/s (34.2kB/s-35.2kB/s), io=23.4MiB (24.6MB), run=176172-178098msec WRITE: bw=141KiB/s (145kB/s), 35.3KiB/s-35.6KiB/s (36.2kB/s-36.5kB/s), io=24.6MiB (25.7MB), run=176172-178098msec 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=178879: Thu Aug 27 11:49:08 2026 read: IOPS=10, BW=173KiB/s (177kB/s)(5920KiB/34259msec) clat (usec): min=39, max=342933, avg=50166.40, stdev=35326.89 lat (usec): min=39, max=342936, avg=50167.92, stdev=35326.98 clat percentiles (usec): | 1.00th=[ 48], 5.00th=[ 68], 10.00th=[ 200], 20.00th=[ 25822], | 30.00th=[ 32375], 40.00th=[ 38536], 50.00th=[ 45876], 60.00th=[ 51643], | 70.00th=[ 61080], 80.00th=[ 73925], 90.00th=[ 91751], 95.00th=[109577], | 99.00th=[147850], 99.50th=[170918], 99.90th=[341836], 99.95th=[341836], | 99.99th=[341836] bw ( KiB/s): min= 30, max= 352, per=25.51%, avg=171.42, stdev=65.45, samples=67 iops : min= 1, max= 22, avg= 9.93, stdev= 4.17, samples=67 write: IOPS=11, BW=186KiB/s (190kB/s)(6368KiB/34259msec); 0 zone resets clat (usec): min=1479, max=186758, avg=38787.82, stdev=36213.80 lat (usec): min=1482, max=186761, avg=38790.63, stdev=36214.93 clat percentiles (usec): | 1.00th=[ 1778], 5.00th=[ 2114], 10.00th=[ 4228], 20.00th=[ 6980], | 30.00th=[ 11994], 40.00th=[ 19006], 50.00th=[ 28181], 60.00th=[ 36963], | 70.00th=[ 50070], 80.00th=[ 68682], 90.00th=[ 90702], 95.00th=[111674], | 99.00th=[162530], 99.50th=[175113], 99.90th=[187696], 99.95th=[187696], | 99.99th=[187696] bw ( KiB/s): min= 31, max= 382, per=26.18%, avg=185.06, stdev=79.34, samples=67 iops : min= 1, max= 23, avg=10.79, stdev= 4.95, samples=67 lat (usec) : 50=0.52%, 100=3.52%, 250=1.04%, 500=0.13% lat (msec) : 2=2.60%, 4=2.34%, 10=8.59%, 20=9.64%, 50=35.29% lat (msec) : 100=28.52%, 250=7.68%, 500=0.13% cpu : usr=0.08%, sys=5.98%, ctx=1676, 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=178880: Thu Aug 27 11:49:08 2026 read: IOPS=10, BW=168KiB/s (172kB/s)(5744KiB/34188msec) clat (usec): min=40, max=192827, avg=48706.35, stdev=33389.43 lat (usec): min=40, max=192829, avg=48707.94, stdev=33389.38 clat percentiles (usec): | 1.00th=[ 57], 5.00th=[ 71], 10.00th=[ 194], 20.00th=[ 24773], | 30.00th=[ 31065], 40.00th=[ 36439], 50.00th=[ 41681], 60.00th=[ 51119], | 70.00th=[ 61604], 80.00th=[ 69731], 90.00th=[ 90702], 95.00th=[113771], | 99.00th=[156238], 99.50th=[166724], 99.90th=[191890], 99.95th=[191890], | 99.99th=[191890] bw ( KiB/s): min= 30, max= 310, per=25.09%, avg=168.63, stdev=63.22, samples=67 iops : min= 1, max= 19, avg= 9.75, stdev= 3.98, samples=67 write: IOPS=11, BW=191KiB/s (196kB/s)(6544KiB/34188msec); 0 zone resets clat (usec): min=1605, max=216948, avg=40352.04, stdev=41002.90 lat (usec): min=1607, max=216949, avg=40364.47, stdev=40999.50 clat percentiles (usec): | 1.00th=[ 1745], 5.00th=[ 1909], 10.00th=[ 3163], 20.00th=[ 6587], | 30.00th=[ 10945], 40.00th=[ 17171], 50.00th=[ 26870], 60.00th=[ 36963], | 70.00th=[ 51119], 80.00th=[ 68682], 90.00th=[ 94897], 95.00th=[127402], | 99.00th=[183501], 99.50th=[202376], 99.90th=[217056], 99.95th=[217056], | 99.99th=[217056] bw ( KiB/s): min= 63, max= 383, per=26.91%, avg=190.25, stdev=80.07, samples=67 iops : min= 3, max= 23, avg=11.12, stdev= 5.06, samples=67 lat (usec) : 50=0.26%, 100=3.78%, 250=0.65%, 500=0.13%, 750=0.13% lat (usec) : 1000=0.13% lat (msec) : 2=2.73%, 4=3.91%, 10=8.07%, 20=9.64%, 50=35.42% lat (msec) : 100=27.08%, 250=8.07% cpu : usr=0.07%, sys=5.84%, ctx=1659, 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=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=178881: Thu Aug 27 11:49:08 2026 read: IOPS=10, BW=176KiB/s (180kB/s)(6256KiB/35622msec) clat (usec): min=42, max=235560, avg=51889.11, stdev=37118.05 lat (usec): min=42, max=235561, avg=51892.22, stdev=37117.13 clat percentiles (usec): | 1.00th=[ 48], 5.00th=[ 69], 10.00th=[ 627], 20.00th=[ 23987], | 30.00th=[ 32113], 40.00th=[ 38536], 50.00th=[ 46400], 60.00th=[ 54789], | 70.00th=[ 63701], 80.00th=[ 78119], 90.00th=[ 98042], 95.00th=[116917], | 99.00th=[191890], 99.50th=[219153], 99.90th=[235930], 99.95th=[235930], | 99.99th=[235930] bw ( KiB/s): min= 62, max= 319, per=26.07%, avg=175.20, stdev=63.38, samples=70 iops : min= 3, max= 19, avg=10.16, stdev= 4.02, samples=70 write: IOPS=10, BW=169KiB/s (173kB/s)(6032KiB/35622msec); 0 zone resets clat (usec): min=1497, max=186081, avg=39900.57, stdev=39501.60 lat (usec): min=1499, max=186083, avg=39903.12, stdev=39501.72 clat percentiles (usec): | 1.00th=[ 1598], 5.00th=[ 2180], 10.00th=[ 3392], 20.00th=[ 6128], | 30.00th=[ 10945], 40.00th=[ 16450], 50.00th=[ 26608], 60.00th=[ 35914], | 70.00th=[ 51643], 80.00th=[ 73925], 90.00th=[101188], 95.00th=[115868], | 99.00th=[162530], 99.50th=[181404], 99.90th=[185598], 99.95th=[185598], | 99.99th=[185598] bw ( KiB/s): min= 31, max= 445, per=24.10%, avg=170.39, stdev=94.04, samples=69 iops : min= 1, max= 27, avg= 9.86, stdev= 5.90, samples=69 lat (usec) : 50=0.52%, 100=3.78%, 250=0.52%, 500=0.26%, 750=0.13% lat (msec) : 2=1.95%, 4=3.91%, 10=8.98%, 20=9.51%, 50=32.81% lat (msec) : 100=27.60%, 250=10.03% cpu : usr=0.07%, sys=5.65%, ctx=1776, 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=178882: Thu Aug 27 11:49:08 2026 read: IOPS=11, BW=177KiB/s (181kB/s)(6032KiB/34100msec) clat (usec): min=45, max=331015, avg=51780.32, stdev=39775.97 lat (usec): min=45, max=331017, avg=51792.24, stdev=39789.69 clat percentiles (usec): | 1.00th=[ 55], 5.00th=[ 65], 10.00th=[ 93], 20.00th=[ 24773], | 30.00th=[ 31327], 40.00th=[ 37487], 50.00th=[ 42730], 60.00th=[ 54264], | 70.00th=[ 65274], 80.00th=[ 78119], 90.00th=[ 96994], 95.00th=[124257], | 99.00th=[177210], 99.50th=[256902], 99.90th=[329253], 99.95th=[329253], | 99.99th=[329253] bw ( KiB/s): min= 31, max= 381, per=26.01%, avg=174.79, stdev=66.44, samples=66 iops : min= 1, max= 23, avg=10.15, stdev= 4.19, samples=66 write: IOPS=11, BW=183KiB/s (188kB/s)(6256KiB/34100msec); 0 zone resets clat (usec): min=1569, max=202393, avg=36947.89, stdev=38411.68 lat (usec): min=1572, max=202395, avg=36951.57, stdev=38410.71 clat percentiles (usec): | 1.00th=[ 1680], 5.00th=[ 2147], 10.00th=[ 3294], 20.00th=[ 5407], | 30.00th=[ 8586], 40.00th=[ 13829], 50.00th=[ 26608], 60.00th=[ 33424], | 70.00th=[ 48497], 80.00th=[ 61080], 90.00th=[ 90702], 95.00th=[115868], | 99.00th=[181404], 99.50th=[193987], 99.90th=[202376], 99.95th=[202376], | 99.99th=[202376] bw ( KiB/s): min= 31, max= 383, per=25.64%, avg=181.30, stdev=76.99, samples=66 iops : min= 1, max= 23, avg=10.55, stdev= 4.87, samples=66 lat (usec) : 50=0.26%, 100=4.95%, 250=0.52%, 500=0.13% lat (msec) : 2=1.95%, 4=5.47%, 10=9.38%, 20=7.68%, 50=34.64% lat (msec) : 100=26.69%, 250=8.07%, 500=0.26% cpu : usr=0.05%, sys=5.70%, ctx=1598, 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=672KiB/s (689kB/s), 168KiB/s-177KiB/s (172kB/s-181kB/s), io=23.4MiB (24.5MB), run=34100-35622msec WRITE: bw=707KiB/s (724kB/s), 169KiB/s-191KiB/s (173kB/s-196kB/s), io=24.6MiB (25.8MB), run=34100-35622msec rand-rw: (groupid=0, jobs=1): err= 0: pid=178885: Thu Aug 27 11:49:24 2026 read: IOPS=7, BW=121KiB/s (124kB/s)(5920KiB/48766msec) clat (msec): min=7, max=230, avg=52.02, stdev=39.91 lat (msec): min=7, max=230, avg=52.03, stdev=39.93 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 14], 10.00th=[ 18], 20.00th=[ 25], | 30.00th=[ 30], 40.00th=[ 35], 50.00th=[ 40], 60.00th=[ 45], | 70.00th=[ 54], 80.00th=[ 68], 90.00th=[ 105], 95.00th=[ 138], | 99.00th=[ 215], 99.50th=[ 228], 99.90th=[ 232], 99.95th=[ 232], | 99.99th=[ 232] bw ( KiB/s): min= 31, max= 320, per=25.31%, avg=120.74, stdev=66.14, samples=96 iops : min= 1, max= 20, avg= 6.78, stdev= 4.24, samples=96 write: IOPS=8, BW=131KiB/s (134kB/s)(6368KiB/48766msec); 0 zone resets clat (msec): min=12, max=335, avg=73.90, stdev=47.87 lat (msec): min=12, max=335, avg=73.90, stdev=47.87 clat percentiles (msec): | 1.00th=[ 21], 5.00th=[ 27], 10.00th=[ 32], 20.00th=[ 37], | 30.00th=[ 44], 40.00th=[ 51], 50.00th=[ 61], 60.00th=[ 68], | 70.00th=[ 82], 80.00th=[ 105], 90.00th=[ 142], 95.00th=[ 178], | 99.00th=[ 234], 99.50th=[ 266], 99.90th=[ 334], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 27, max= 352, per=26.28%, avg=131.94, stdev=68.20, samples=95 iops : min= 1, max= 22, avg= 7.47, stdev= 4.35, samples=95 lat (msec) : 10=0.13%, 20=5.60%, 50=46.48%, 100=30.99%, 250=16.41% lat (msec) : 500=0.39% cpu : usr=0.05%, sys=1.78%, ctx=1328, 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=178886: Thu Aug 27 11:49:24 2026 read: IOPS=7, BW=115KiB/s (117kB/s)(5744KiB/50137msec) clat (msec): min=7, max=323, avg=56.31, stdev=45.55 lat (msec): min=7, max=323, avg=56.31, stdev=45.56 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 16], 10.00th=[ 18], 20.00th=[ 26], | 30.00th=[ 31], 40.00th=[ 36], 50.00th=[ 41], 60.00th=[ 49], | 70.00th=[ 58], 80.00th=[ 75], 90.00th=[ 115], 95.00th=[ 163], | 99.00th=[ 234], 99.50th=[ 245], 99.90th=[ 326], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 27, max= 343, per=25.31%, avg=120.72, stdev=73.58, samples=92 iops : min= 1, max= 21, avg= 6.78, stdev= 4.74, samples=92 write: IOPS=8, BW=131KiB/s (134kB/s)(6544KiB/50137msec); 0 zone resets clat (msec): min=14, max=319, avg=72.88, stdev=50.17 lat (msec): min=14, max=319, avg=72.88, stdev=50.17 clat percentiles (msec): | 1.00th=[ 20], 5.00th=[ 26], 10.00th=[ 28], 20.00th=[ 35], | 30.00th=[ 42], 40.00th=[ 50], 50.00th=[ 57], 60.00th=[ 68], | 70.00th=[ 82], 80.00th=[ 104], 90.00th=[ 146], 95.00th=[ 178], | 99.00th=[ 259], 99.50th=[ 292], 99.90th=[ 321], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 31, max= 349, per=26.18%, avg=131.45, stdev=75.24, samples=96 iops : min= 1, max= 21, avg= 7.46, stdev= 4.77, samples=96 lat (msec) : 10=0.52%, 20=5.99%, 50=43.88%, 100=31.51%, 250=17.32% lat (msec) : 500=0.78% cpu : usr=0.04%, sys=1.73%, ctx=1272, 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=178887: Thu Aug 27 11:49:24 2026 read: IOPS=7, BW=125KiB/s (128kB/s)(6256KiB/49974msec) clat (msec): min=9, max=326, avg=55.53, stdev=44.19 lat (msec): min=9, max=326, avg=55.53, stdev=44.19 clat percentiles (msec): | 1.00th=[ 12], 5.00th=[ 16], 10.00th=[ 20], 20.00th=[ 24], | 30.00th=[ 31], 40.00th=[ 35], 50.00th=[ 43], 60.00th=[ 50], | 70.00th=[ 59], 80.00th=[ 78], 90.00th=[ 108], 95.00th=[ 159], | 99.00th=[ 226], 99.50th=[ 245], 99.90th=[ 326], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 31, max= 416, per=27.45%, avg=130.94, stdev=80.61, samples=94 iops : min= 1, max= 26, avg= 7.41, stdev= 5.18, samples=94 write: IOPS=7, BW=121KiB/s (124kB/s)(6032KiB/49974msec); 0 zone resets clat (msec): min=17, max=295, avg=74.64, stdev=47.65 lat (msec): min=17, max=295, avg=74.65, stdev=47.64 clat percentiles (msec): | 1.00th=[ 20], 5.00th=[ 26], 10.00th=[ 31], 20.00th=[ 39], | 30.00th=[ 44], 40.00th=[ 51], 50.00th=[ 60], 60.00th=[ 71], | 70.00th=[ 84], 80.00th=[ 107], 90.00th=[ 142], 95.00th=[ 169], | 99.00th=[ 253], 99.50th=[ 292], 99.90th=[ 296], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 30, max= 316, per=24.22%, avg=121.56, stdev=62.94, samples=96 iops : min= 1, max= 19, avg= 6.83, stdev= 4.03, samples=96 lat (msec) : 10=0.13%, 20=6.12%, 50=44.01%, 100=32.16%, 250=16.93% lat (msec) : 500=0.65% cpu : usr=0.05%, sys=1.69%, ctx=1283, 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=178888: Thu Aug 27 11:49:24 2026 read: IOPS=7, BW=124KiB/s (127kB/s)(6032KiB/48799msec) clat (msec): min=8, max=214, avg=53.40, stdev=38.42 lat (msec): min=8, max=214, avg=53.40, stdev=38.42 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 15], 10.00th=[ 19], 20.00th=[ 24], | 30.00th=[ 29], 40.00th=[ 34], 50.00th=[ 42], 60.00th=[ 50], | 70.00th=[ 62], 80.00th=[ 81], 90.00th=[ 107], 95.00th=[ 140], | 99.00th=[ 194], 99.50th=[ 201], 99.90th=[ 215], 99.95th=[ 215], | 99.99th=[ 215] bw ( KiB/s): min= 30, max= 349, per=26.84%, avg=128.03, stdev=71.11, samples=92 iops : min= 1, max= 21, avg= 7.23, stdev= 4.57, samples=92 write: IOPS=8, BW=128KiB/s (131kB/s)(6256KiB/48799msec); 0 zone resets clat (msec): min=14, max=332, avg=73.12, stdev=48.73 lat (msec): min=14, max=332, avg=73.14, stdev=48.74 clat percentiles (msec): | 1.00th=[ 19], 5.00th=[ 24], 10.00th=[ 29], 20.00th=[ 35], | 30.00th=[ 41], 40.00th=[ 50], 50.00th=[ 57], 60.00th=[ 70], | 70.00th=[ 85], 80.00th=[ 107], 90.00th=[ 136], 95.00th=[ 171], | 99.00th=[ 236], 99.50th=[ 288], 99.90th=[ 334], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 31, max= 413, per=25.79%, avg=129.48, stdev=76.52, samples=95 iops : min= 1, max= 25, avg= 7.33, stdev= 4.88, samples=95 lat (msec) : 10=0.91%, 20=6.64%, 50=43.49%, 100=30.60%, 250=18.10% lat (msec) : 500=0.26% cpu : usr=0.05%, sys=1.86%, ctx=1348, 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=478KiB/s (489kB/s), 115KiB/s-125KiB/s (117kB/s-128kB/s), io=23.4MiB (24.5MB), run=48766-50137msec WRITE: bw=503KiB/s (515kB/s), 121KiB/s-131KiB/s (124kB/s-134kB/s), io=24.6MiB (25.8MB), run=48766-50137msec 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=178907: Thu Aug 27 11:49:39 2026 read: IOPS=1, BW=1926KiB/s (1973kB/s)(7168KiB/3721msec) clat (usec): min=529, max=311107, avg=202141.52, stdev=106430.11 lat (usec): min=530, max=311108, avg=202142.98, stdev=106430.14 clat percentiles (usec): | 1.00th=[ 529], 5.00th=[ 529], 10.00th=[ 529], 20.00th=[133694], | 30.00th=[191890], 40.00th=[191890], 50.00th=[233833], 60.00th=[270533], | 70.00th=[270533], 80.00th=[274727], 90.00th=[312476], 95.00th=[312476], | 99.00th=[312476], 99.50th=[312476], 99.90th=[312476], 99.95th=[312476], | 99.99th=[312476] bw ( KiB/s): min= 1976, max= 4087, per=71.77%, avg=3338.67, stdev=1182.00, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=1, BW=1376KiB/s (1409kB/s)(5120KiB/3721msec); 0 zone resets clat (msec): min=122, max=634, avg=405.94, stdev=183.65 lat (msec): min=122, max=634, avg=406.04, stdev=183.66 clat percentiles (msec): | 1.00th=[ 123], 5.00th=[ 123], 10.00th=[ 123], 20.00th=[ 123], | 30.00th=[ 409], 40.00th=[ 409], 50.00th=[ 414], 60.00th=[ 414], | 70.00th=[ 451], 80.00th=[ 451], 90.00th=[ 634], 95.00th=[ 634], | 99.00th=[ 634], 99.50th=[ 634], 99.90th=[ 634], 99.95th=[ 634], | 99.99th=[ 634] bw ( KiB/s): min= 1961, max= 4047, per=41.00%, avg=2670.33, stdev=1192.41, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (usec) : 750=8.33% lat (msec) : 250=33.33%, 500=50.00%, 750=8.33% cpu : usr=0.00%, sys=12.10%, ctx=184, 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=178908: Thu Aug 27 11:49:39 2026 read: IOPS=0, BW=465KiB/s (476kB/s)(2048KiB/4402msec) clat (usec): min=528, max=208968, avg=104748.65, stdev=147388.95 lat (usec): min=530, max=208971, avg=104750.56, stdev=147390.02 clat percentiles (usec): | 1.00th=[ 529], 5.00th=[ 529], 10.00th=[ 529], 20.00th=[ 529], | 30.00th=[ 529], 40.00th=[ 529], 50.00th=[ 529], 60.00th=[208667], | 70.00th=[208667], 80.00th=[208667], 90.00th=[208667], 95.00th=[208667], | 99.00th=[208667], 99.50th=[208667], 99.90th=[208667], 99.95th=[208667], | 99.99th=[208667] bw ( KiB/s): min= 1946, max= 2039, per=42.83%, avg=1992.50, stdev=65.76, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2326KiB/s (2382kB/s)(10.0MiB/4402msec); 0 zone resets clat (msec): min=162, max=1131, avg=398.69, stdev=313.04 lat (msec): min=162, max=1131, avg=398.79, stdev=313.02 clat percentiles (msec): | 1.00th=[ 163], 5.00th=[ 163], 10.00th=[ 163], 20.00th=[ 165], | 30.00th=[ 230], 40.00th=[ 266], 50.00th=[ 275], 60.00th=[ 279], | 70.00th=[ 313], 80.00th=[ 384], 90.00th=[ 785], 95.00th=[ 1133], | 99.00th=[ 1133], 99.50th=[ 1133], 99.90th=[ 1133], 99.95th=[ 1133], | 99.99th=[ 1133] bw ( KiB/s): min= 1961, max= 4079, per=41.28%, avg=2688.83, stdev=1074.08, samples=6 iops : min= 1, max= 3, avg= 1.67, stdev= 1.03, samples=6 lat (usec) : 750=8.33% lat (msec) : 250=33.33%, 500=41.67%, 1000=8.33%, 2000=8.33% cpu : usr=0.00%, sys=14.70%, ctx=164, 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=178909: Thu Aug 27 11:49:39 2026 read: IOPS=1, BW=1870KiB/s (1915kB/s)(6144KiB/3285msec) clat (usec): min=476, max=491295, avg=146843.50, stdev=197193.93 lat (usec): min=477, max=491296, avg=146844.87, stdev=197193.69 clat percentiles (usec): | 1.00th=[ 478], 5.00th=[ 478], 10.00th=[ 478], 20.00th=[ 562], | 30.00th=[ 562], 40.00th=[ 3851], 50.00th=[ 3851], 60.00th=[127402], | 70.00th=[256902], 80.00th=[256902], 90.00th=[492831], 95.00th=[492831], | 99.00th=[492831], 99.50th=[492831], 99.90th=[492831], 99.95th=[492831], | 99.99th=[492831] bw ( KiB/s): min= 2023, max= 4087, per=73.01%, avg=3396.33, stdev=1189.35, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=1, BW=1870KiB/s (1915kB/s)(6144KiB/3285msec); 0 zone resets clat (msec): min=186, max=594, avg=374.30, stdev=149.97 lat (msec): min=186, max=594, avg=380.85, stdev=156.42 clat percentiles (msec): | 1.00th=[ 188], 5.00th=[ 188], 10.00th=[ 188], 20.00th=[ 251], | 30.00th=[ 251], 40.00th=[ 351], 50.00th=[ 351], 60.00th=[ 380], | 70.00th=[ 489], 80.00th=[ 489], 90.00th=[ 592], 95.00th=[ 592], | 99.00th=[ 592], 99.50th=[ 592], 99.90th=[ 592], 99.95th=[ 592], | 99.99th=[ 592] bw ( KiB/s): min= 2003, max= 3953, per=38.45%, avg=2504.50, stdev=965.78, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (usec) : 500=8.33%, 750=8.33% lat (msec) : 4=8.33%, 250=25.00%, 500=41.67%, 750=8.33% cpu : usr=0.00%, sys=14.89%, ctx=130, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178910: Thu Aug 27 11:49:39 2026 read: IOPS=1, BW=1425KiB/s (1459kB/s)(5120KiB/3594msec) clat (usec): min=560, max=277963, avg=147272.62, stdev=116698.80 lat (usec): min=561, max=277964, avg=147273.73, stdev=116698.77 clat percentiles (usec): | 1.00th=[ 562], 5.00th=[ 562], 10.00th=[ 562], 20.00th=[ 562], | 30.00th=[ 66847], 40.00th=[ 66847], 50.00th=[145753], 60.00th=[145753], | 70.00th=[244319], 80.00th=[244319], 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= 4047, max= 4079, per=87.34%, avg=4063.00, stdev=22.63, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1994KiB/s (2042kB/s)(7168KiB/3594msec); 0 zone resets clat (msec): min=168, max=894, avg=366.93, stdev=253.12 lat (msec): min=168, max=894, avg=367.05, stdev=253.16 clat percentiles (msec): | 1.00th=[ 169], 5.00th=[ 169], 10.00th=[ 169], 20.00th=[ 171], | 30.00th=[ 245], 40.00th=[ 245], 50.00th=[ 268], 60.00th=[ 401], | 70.00th=[ 401], 80.00th=[ 422], 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= 2003, max= 3953, per=42.82%, avg=2789.00, stdev=1049.04, samples=5 iops : min= 1, max= 3, avg= 1.80, stdev= 1.10, samples=5 lat (usec) : 750=8.33% lat (msec) : 100=8.33%, 250=41.67%, 500=33.33%, 1000=8.33% cpu : usr=0.08%, sys=13.69%, ctx=138, 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=4652KiB/s (4764kB/s), 465KiB/s-1926KiB/s (476kB/s-1973kB/s), io=20.0MiB (20.0MB), run=3285-4402msec WRITE: bw=6513KiB/s (6670kB/s), 1376KiB/s-2326KiB/s (1409kB/s-2382kB/s), io=28.0MiB (29.4MB), run=3285-4402msec rand-rw: (groupid=0, jobs=1): err= 0: pid=178902: Thu Aug 27 11:49:39 2026 read: IOPS=1, BW=1970KiB/s (2018kB/s)(7168KiB/3638msec) clat (msec): min=75, max=561, avg=236.76, stdev=188.36 lat (msec): min=75, max=561, avg=236.76, stdev=188.36 clat percentiles (msec): | 1.00th=[ 75], 5.00th=[ 75], 10.00th=[ 75], 20.00th=[ 114], | 30.00th=[ 144], 40.00th=[ 144], 50.00th=[ 153], 60.00th=[ 165], | 70.00th=[ 165], 80.00th=[ 451], 90.00th=[ 558], 95.00th=[ 558], | 99.00th=[ 558], 99.50th=[ 558], 99.90th=[ 558], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 1946, max= 4290, per=59.27%, avg=2573.50, stdev=1145.00, samples=4 iops : min= 1, max= 4, avg= 1.75, stdev= 1.50, samples=4 write: IOPS=1, BW=1407KiB/s (1441kB/s)(5120KiB/3638msec); 0 zone resets clat (msec): min=149, max=652, avg=374.56, stdev=183.08 lat (msec): min=149, max=652, avg=374.66, stdev=183.07 clat percentiles (msec): | 1.00th=[ 150], 5.00th=[ 150], 10.00th=[ 150], 20.00th=[ 150], | 30.00th=[ 309], 40.00th=[ 309], 50.00th=[ 351], 60.00th=[ 351], | 70.00th=[ 409], 80.00th=[ 409], 90.00th=[ 651], 95.00th=[ 651], | 99.00th=[ 651], 99.50th=[ 651], 99.90th=[ 651], 99.95th=[ 651], | 99.99th=[ 651] bw ( KiB/s): min= 2035, max= 3893, per=43.74%, avg=2658.67, stdev=1068.98, samples=3 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=3 lat (msec) : 100=8.33%, 250=41.67%, 500=33.33%, 750=16.67% cpu : usr=0.00%, sys=5.69%, ctx=85, 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=178903: Thu Aug 27 11:49:39 2026 read: IOPS=0, BW=478KiB/s (489kB/s)(2048KiB/4288msec) clat (msec): min=139, max=191, avg=165.60, stdev=36.86 lat (msec): min=139, max=191, avg=165.60, stdev=36.86 clat percentiles (msec): | 1.00th=[ 140], 5.00th=[ 140], 10.00th=[ 140], 20.00th=[ 140], | 30.00th=[ 140], 40.00th=[ 140], 50.00th=[ 140], 60.00th=[ 192], | 70.00th=[ 192], 80.00th=[ 192], 90.00th=[ 192], 95.00th=[ 192], | 99.00th=[ 192], 99.50th=[ 192], 99.90th=[ 192], 99.95th=[ 192], | 99.99th=[ 192] bw ( KiB/s): min= 1456, max= 2035, per=40.20%, avg=1745.50, stdev=409.41, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2388KiB/s (2445kB/s)(10.0MiB/4288msec); 0 zone resets clat (msec): min=142, max=846, avg=384.34, stdev=266.10 lat (msec): min=142, max=846, avg=384.49, stdev=266.06 clat percentiles (msec): | 1.00th=[ 144], 5.00th=[ 144], 10.00th=[ 144], 20.00th=[ 167], | 30.00th=[ 199], 40.00th=[ 215], 50.00th=[ 230], 60.00th=[ 249], | 70.00th=[ 443], 80.00th=[ 542], 90.00th=[ 818], 95.00th=[ 844], | 99.00th=[ 844], 99.50th=[ 844], 99.90th=[ 844], 99.95th=[ 844], | 99.99th=[ 844] bw ( KiB/s): min= 1456, max= 4087, per=48.35%, avg=2939.00, stdev=1252.50, samples=6 iops : min= 1, max= 3, avg= 2.00, stdev= 1.10, samples=6 lat (msec) : 250=66.67%, 500=8.33%, 750=8.33%, 1000=16.67% cpu : usr=0.07%, sys=5.90%, ctx=96, 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=178904: Thu Aug 27 11:49:39 2026 read: IOPS=1, BW=1303KiB/s (1334kB/s)(6144KiB/4716msec) clat (msec): min=58, max=351, avg=254.97, stdev=131.32 lat (msec): min=58, max=351, avg=254.97, stdev=131.32 clat percentiles (msec): | 1.00th=[ 59], 5.00th=[ 59], 10.00th=[ 59], 20.00th=[ 116], | 30.00th=[ 116], 40.00th=[ 330], 50.00th=[ 330], 60.00th=[ 334], | 70.00th=[ 342], 80.00th=[ 342], 90.00th=[ 351], 95.00th=[ 351], | 99.00th=[ 351], 99.50th=[ 351], 99.90th=[ 351], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 2027, max= 2043, per=46.82%, avg=2033.00, stdev= 7.66, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 write: IOPS=1, BW=1303KiB/s (1334kB/s)(6144KiB/4716msec); 0 zone resets clat (msec): min=85, max=1024, avg=519.02, stdev=363.88 lat (msec): min=85, max=1025, avg=519.12, stdev=363.88 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 86], 10.00th=[ 86], 20.00th=[ 211], | 30.00th=[ 211], 40.00th=[ 414], 50.00th=[ 414], 60.00th=[ 527], | 70.00th=[ 852], 80.00th=[ 852], 90.00th=[ 1028], 95.00th=[ 1028], | 99.00th=[ 1028], 99.50th=[ 1028], 99.90th=[ 1028], 99.95th=[ 1028], | 99.99th=[ 1028] bw ( KiB/s): min= 1418, max= 2048, per=30.93%, avg=1880.00, stdev=308.16, samples=4 iops : min= 1, max= 2, avg= 1.25, stdev= 0.50, samples=4 lat (msec) : 100=16.67%, 250=16.67%, 500=41.67%, 750=8.33%, 1000=8.33% lat (msec) : 2000=8.33% cpu : usr=0.04%, sys=3.82%, ctx=77, 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=178905: Thu Aug 27 11:49:39 2026 read: IOPS=1, BW=1178KiB/s (1206kB/s)(5120KiB/4347msec) clat (msec): min=91, max=576, avg=283.04, stdev=199.84 lat (msec): min=91, max=576, avg=283.04, stdev=199.84 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 92], 10.00th=[ 92], 20.00th=[ 92], | 30.00th=[ 146], 40.00th=[ 146], 50.00th=[ 209], 60.00th=[ 209], | 70.00th=[ 397], 80.00th=[ 397], 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= 2023, max= 4063, per=62.41%, avg=2709.67, stdev=1172.06, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=1, BW=1649KiB/s (1689kB/s)(7168KiB/4347msec); 0 zone resets clat (msec): min=105, max=843, avg=414.66, stdev=292.26 lat (msec): min=105, max=843, avg=414.87, stdev=292.15 clat percentiles (msec): | 1.00th=[ 106], 5.00th=[ 106], 10.00th=[ 106], 20.00th=[ 163], | 30.00th=[ 253], 40.00th=[ 253], 50.00th=[ 338], 60.00th=[ 418], | 70.00th=[ 418], 80.00th=[ 785], 90.00th=[ 844], 95.00th=[ 844], | 99.00th=[ 844], 99.50th=[ 844], 99.90th=[ 844], 99.95th=[ 844], | 99.99th=[ 844] bw ( KiB/s): min= 2035, max= 4096, per=50.32%, avg=3059.25, stdev=1178.16, samples=4 iops : min= 1, max= 4, avg= 2.25, stdev= 1.50, samples=4 lat (msec) : 100=8.33%, 250=33.33%, 500=33.33%, 750=8.33%, 1000=16.67% cpu : usr=0.07%, sys=3.80%, ctx=70, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=4343KiB/s (4447kB/s), 478KiB/s-1970KiB/s (489kB/s-2018kB/s), io=20.0MiB (20.0MB), run=3638-4716msec WRITE: bw=6080KiB/s (6226kB/s), 1303KiB/s-2388KiB/s (1334kB/s-2445kB/s), io=28.0MiB (29.4MB), run=3638-4716msec 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=178921: Thu Aug 27 11:49:55 2026 read: IOPS=1, BW=4282KiB/s (4384kB/s)(12.0MiB/2870msec) clat (msec): min=819, max=1100, avg=929.03, stdev=150.69 lat (msec): min=819, max=1100, avg=929.03, stdev=150.69 clat percentiles (msec): | 1.00th=[ 818], 5.00th=[ 818], 10.00th=[ 818], 20.00th=[ 818], | 30.00th=[ 818], 40.00th=[ 869], 50.00th=[ 869], 60.00th=[ 869], | 70.00th=[ 1099], 80.00th=[ 1099], 90.00th=[ 1099], 95.00th=[ 1099], | 99.00th=[ 1099], 99.50th=[ 1099], 99.90th=[ 1099], 99.95th=[ 1099], | 99.99th=[ 1099] bw ( KiB/s): min= 8094, max= 8110, per=100.00%, avg=8102.00, stdev=11.31, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=66.67%, 2000=33.33% cpu : usr=0.00%, sys=11.15%, ctx=265, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178923: Thu Aug 27 11:49:55 2026 read: IOPS=0, BW=1277KiB/s (1307kB/s)(4096KiB/3208msec) clat (nsec): min=1085.7M, max=1085.7M, avg=1085673996.00, stdev= 0.00 lat (nsec): min=1085.7M, max=1085.7M, avg=1085676970.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1083], 5.00th=[ 1083], 10.00th=[ 1083], 20.00th=[ 1083], | 30.00th=[ 1083], 40.00th=[ 1083], 50.00th=[ 1083], 60.00th=[ 1083], | 70.00th=[ 1083], 80.00th=[ 1083], 90.00th=[ 1083], 95.00th=[ 1083], | 99.00th=[ 1083], 99.50th=[ 1083], 99.90th=[ 1083], 99.95th=[ 1083], | 99.99th=[ 1083] bw ( KiB/s): min= 8110, max= 8110, per=100.00%, avg=8110.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2554KiB/s (2615kB/s)(8192KiB/3208msec); 0 zone resets clat (msec): min=862, max=1079, avg=971.01, stdev=153.62 lat (msec): min=864, max=1080, avg=972.07, stdev=152.82 clat percentiles (msec): | 1.00th=[ 860], 5.00th=[ 860], 10.00th=[ 860], 20.00th=[ 860], | 30.00th=[ 860], 40.00th=[ 860], 50.00th=[ 860], 60.00th=[ 1083], | 70.00th=[ 1083], 80.00th=[ 1083], 90.00th=[ 1083], 95.00th=[ 1083], | 99.00th=[ 1083], 99.50th=[ 1083], 99.90th=[ 1083], 99.95th=[ 1083], | 99.99th=[ 1083] bw ( KiB/s): min= 8094, max= 8094, per=80.90%, avg=8094.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 1000=33.33%, 2000=66.67% cpu : usr=0.00%, sys=4.65%, ctx=79, 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=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=178924: Thu Aug 27 11:49:55 2026 write: IOPS=0, BW=3752KiB/s (3842kB/s)(12.0MiB/3275msec); 0 zone resets clat (msec): min=558, max=1812, avg=1059.27, stdev=664.08 lat (msec): min=558, max=1819, avg=1061.65, stdev=667.63 clat percentiles (msec): | 1.00th=[ 558], 5.00th=[ 558], 10.00th=[ 558], 20.00th=[ 558], | 30.00th=[ 558], 40.00th=[ 810], 50.00th=[ 810], 60.00th=[ 810], | 70.00th=[ 1821], 80.00th=[ 1821], 90.00th=[ 1821], 95.00th=[ 1821], | 99.00th=[ 1821], 99.50th=[ 1821], 99.90th=[ 1821], 99.95th=[ 1821], | 99.99th=[ 1821] bw ( KiB/s): min= 8078, max= 8126, per=80.98%, avg=8102.00, stdev=33.94, 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=3.91%, ctx=57, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178925: Thu Aug 27 11:49:55 2026 write: IOPS=0, BW=3942KiB/s (4037kB/s)(12.0MiB/3117msec); 0 zone resets clat (msec): min=412, max=1897, avg=996.52, stdev=791.65 lat (msec): min=412, max=1897, avg=996.85, stdev=791.57 clat percentiles (msec): | 1.00th=[ 414], 5.00th=[ 414], 10.00th=[ 414], 20.00th=[ 414], | 30.00th=[ 414], 40.00th=[ 684], 50.00th=[ 684], 60.00th=[ 684], | 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= 6350, max= 8110, per=72.26%, avg=7230.00, stdev=1244.51, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.00%, sys=4.01%, ctx=60, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=5107KiB/s (5230kB/s), 1277KiB/s-4282KiB/s (1307kB/s-4384kB/s), io=16.0MiB (16.8MB), run=2870-3208msec WRITE: bw=9.77MiB/s (10.2MB/s), 2554KiB/s-3942KiB/s (2615kB/s-4037kB/s), io=32.0MiB (33.6MB), run=3117-3275msec rand-rw: (groupid=0, jobs=1): err= 0: pid=178918: Thu Aug 27 11:49:56 2026 read: IOPS=0, BW=3375KiB/s (3456kB/s)(12.0MiB/3641msec) clat (msec): min=255, max=2031, avg=1177.51, stdev=889.78 lat (msec): min=255, max=2031, avg=1177.51, stdev=889.78 clat percentiles (msec): | 1.00th=[ 255], 5.00th=[ 255], 10.00th=[ 255], 20.00th=[ 255], | 30.00th=[ 255], 40.00th=[ 1250], 50.00th=[ 1250], 60.00th=[ 1250], | 70.00th=[ 2039], 80.00th=[ 2039], 90.00th=[ 2039], 95.00th=[ 2039], | 99.00th=[ 2039], 99.50th=[ 2039], 99.90th=[ 2039], 99.95th=[ 2039], | 99.99th=[ 2039] bw ( KiB/s): min= 8094, max= 8094, per=100.00%, avg=8094.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=2.50%, ctx=45, 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=178919: Thu Aug 27 11:49:56 2026 read: IOPS=0, BW=1103KiB/s (1129kB/s)(4096KiB/3714msec) clat (nsec): min=1413.5M, max=1413.5M, avg=1413514757.00, stdev= 0.00 lat (nsec): min=1413.5M, max=1413.5M, avg=1413517272.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1418], 5.00th=[ 1418], 10.00th=[ 1418], 20.00th=[ 1418], | 30.00th=[ 1418], 40.00th=[ 1418], 50.00th=[ 1418], 60.00th=[ 1418], | 70.00th=[ 1418], 80.00th=[ 1418], 90.00th=[ 1418], 95.00th=[ 1418], | 99.00th=[ 1418], 99.50th=[ 1418], 99.90th=[ 1418], 99.95th=[ 1418], | 99.99th=[ 1418] bw ( KiB/s): min= 8159, max= 8159, per=100.00%, avg=8159.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2206KiB/s (2259kB/s)(8192KiB/3714msec); 0 zone resets clat (msec): min=927, max=1335, avg=1131.70, stdev=288.83 lat (msec): min=927, max=1336, avg=1131.88, stdev=288.86 clat percentiles (msec): | 1.00th=[ 927], 5.00th=[ 927], 10.00th=[ 927], 20.00th=[ 927], | 30.00th=[ 927], 40.00th=[ 927], 50.00th=[ 927], 60.00th=[ 1334], | 70.00th=[ 1334], 80.00th=[ 1334], 90.00th=[ 1334], 95.00th=[ 1334], | 99.00th=[ 1334], 99.50th=[ 1334], 99.90th=[ 1334], 99.95th=[ 1334], | 99.99th=[ 1334] bw ( KiB/s): min= 8126, max= 8126, per=92.11%, avg=8126.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 1000=33.33%, 2000=66.67% cpu : usr=0.00%, sys=3.10%, 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=178920: Thu Aug 27 11:49:56 2026 write: IOPS=1, BW=6592KiB/s (6750kB/s)(12.0MiB/1864msec); 0 zone resets clat (msec): min=419, max=786, avg=591.32, stdev=184.69 lat (msec): min=422, max=788, avg=592.93, stdev=184.06 clat percentiles (msec): | 1.00th=[ 422], 5.00th=[ 422], 10.00th=[ 422], 20.00th=[ 422], | 30.00th=[ 422], 40.00th=[ 567], 50.00th=[ 567], 60.00th=[ 567], | 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= 6140, max= 8192, per=81.23%, avg=7166.00, stdev=1450.98, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 500=33.33%, 750=33.33%, 1000=33.33% cpu : usr=0.00%, sys=7.25%, ctx=56, 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=178922: Thu Aug 27 11:49:56 2026 write: IOPS=0, BW=3839KiB/s (3931kB/s)(12.0MiB/3201msec); 0 zone resets clat (msec): min=302, max=2236, avg=979.30, stdev=1090.09 lat (msec): min=302, max=2237, avg=979.68, stdev=1089.95 clat percentiles (msec): | 1.00th=[ 305], 5.00th=[ 305], 10.00th=[ 305], 20.00th=[ 305], | 30.00th=[ 305], 40.00th=[ 401], 50.00th=[ 401], 60.00th=[ 401], | 70.00th=[ 2232], 80.00th=[ 2232], 90.00th=[ 2232], 95.00th=[ 2232], | 99.00th=[ 2232], 99.50th=[ 2232], 99.90th=[ 2232], 99.95th=[ 2232], | 99.99th=[ 2232] bw ( KiB/s): min= 6954, max= 8175, per=85.75%, avg=7564.50, stdev=863.38, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=66.67%, >=2000=33.33% cpu : usr=0.00%, sys=3.50%, ctx=48, 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=4411KiB/s (4517kB/s), 1103KiB/s-3375KiB/s (1129kB/s-3456kB/s), io=16.0MiB (16.8MB), run=3641-3714msec WRITE: bw=8823KiB/s (9035kB/s), 2206KiB/s-6592KiB/s (2259kB/s-6750kB/s), io=32.0MiB (33.6MB), run=1864-3714msec