== sanity test 398b: DIO and buffer IO race ============== 08:43:44 (1787834624) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 5.53427 s, 9.1 MB/s mix direct rw 4096 by fio with 4 jobs... mix buffer rw 4096 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=179330: Thu Aug 27 08:45:39 2026 read: IOPS=15, BW=61.4KiB/s (62.9kB/s)(5992KiB/97624msec) clat (usec): min=34, max=931511, avg=35843.61, stdev=32932.63 lat (usec): min=34, max=931511, avg=35845.73, stdev=32932.30 clat percentiles (usec): | 1.00th=[ 50], 5.00th=[ 7898], 10.00th=[ 13304], 20.00th=[ 18220], | 30.00th=[ 21890], 40.00th=[ 25560], 50.00th=[ 30540], 60.00th=[ 35390], | 70.00th=[ 41157], 80.00th=[ 49546], 90.00th=[ 63177], 95.00th=[ 79168], | 99.00th=[116917], 99.50th=[147850], 99.90th=[210764], 99.95th=[935330], | 99.99th=[935330] bw ( KiB/s): min= 7, max= 119, per=25.14%, avg=60.83, stdev=21.42, samples=193 iops : min= 1, max= 29, avg=14.57, stdev= 5.37, samples=193 write: IOPS=16, BW=64.5KiB/s (66.0kB/s)(6296KiB/97624msec); 0 zone resets clat (usec): min=973, max=152360, avg=27631.93, stdev=28334.41 lat (usec): min=974, max=152361, avg=27640.44, stdev=28331.74 clat percentiles (usec): | 1.00th=[ 1074], 5.00th=[ 1172], 10.00th=[ 1467], 20.00th=[ 3032], | 30.00th=[ 5669], 40.00th=[ 10945], 50.00th=[ 19792], 60.00th=[ 26608], | 70.00th=[ 36439], 80.00th=[ 47449], 90.00th=[ 69731], 95.00th=[ 87557], | 99.00th=[119014], 99.50th=[129500], 99.90th=[139461], 99.95th=[152044], | 99.99th=[152044] bw ( KiB/s): min= 15, max= 135, per=25.38%, avg=64.22, stdev=24.39, samples=192 iops : min= 3, max= 33, avg=15.43, stdev= 6.13, samples=192 lat (usec) : 50=0.46%, 100=1.56%, 250=0.10%, 500=0.03%, 750=0.03% lat (usec) : 1000=0.07% lat (msec) : 2=6.74%, 4=6.02%, 10=8.14%, 20=14.81%, 50=42.97% lat (msec) : 100=16.57%, 250=2.47%, 1000=0.03% cpu : usr=0.09%, sys=6.41%, ctx=6456, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179331: Thu Aug 27 08:45:39 2026 read: IOPS=14, BW=59.9KiB/s (61.4kB/s)(5940KiB/99112msec) clat (usec): min=37, max=257501, avg=36125.99, stdev=23747.07 lat (usec): min=38, max=257502, avg=36128.35, stdev=23746.49 clat percentiles (usec): | 1.00th=[ 51], 5.00th=[ 6456], 10.00th=[ 13698], 20.00th=[ 18482], | 30.00th=[ 22152], 40.00th=[ 26346], 50.00th=[ 31589], 60.00th=[ 37487], | 70.00th=[ 44303], 80.00th=[ 51119], 90.00th=[ 64226], 95.00th=[ 77071], | 99.00th=[111674], 99.50th=[137364], 99.90th=[231736], 99.95th=[256902], | 99.99th=[256902] bw ( KiB/s): min= 7, max= 127, per=24.68%, avg=59.72, stdev=19.87, samples=195 iops : min= 1, max= 31, avg=14.29, stdev= 5.00, samples=195 write: IOPS=16, BW=64.0KiB/s (65.6kB/s)(6348KiB/99112msec); 0 zone resets clat (usec): min=945, max=965254, avg=28397.41, stdev=36894.46 lat (usec): min=947, max=965255, avg=28403.95, stdev=36895.43 clat percentiles (usec): | 1.00th=[ 1090], 5.00th=[ 1237], 10.00th=[ 1778], 20.00th=[ 3425], | 30.00th=[ 6259], 40.00th=[ 12256], 50.00th=[ 20317], 60.00th=[ 27395], | 70.00th=[ 35914], 80.00th=[ 47449], 90.00th=[ 67634], 95.00th=[ 85459], | 99.00th=[124257], 99.50th=[141558], 99.90th=[198181], 99.95th=[968885], | 99.99th=[968885] bw ( KiB/s): min= 7, max= 135, per=25.28%, avg=63.95, stdev=24.49, samples=194 iops : min= 1, max= 33, avg=15.36, stdev= 6.16, samples=194 lat (usec) : 50=0.42%, 100=1.53%, 250=0.33%, 500=0.03%, 750=0.03% lat (usec) : 1000=0.03% lat (msec) : 2=6.35%, 4=5.37%, 10=8.27%, 20=14.71%, 50=43.00% lat (msec) : 100=17.71%, 250=2.15%, 500=0.03%, 1000=0.03% cpu : usr=0.09%, sys=6.43%, ctx=6679, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179332: Thu Aug 27 08:45:39 2026 read: IOPS=15, BW=61.1KiB/s (62.6kB/s)(6028KiB/98583msec) clat (usec): min=33, max=164378, avg=35757.71, stdev=23328.19 lat (usec): min=33, max=164379, avg=35763.20, stdev=23334.03 clat percentiles (usec): | 1.00th=[ 50], 5.00th=[ 627], 10.00th=[ 13435], 20.00th=[ 18220], | 30.00th=[ 22152], 40.00th=[ 26084], 50.00th=[ 30278], 60.00th=[ 36439], | 70.00th=[ 42730], 80.00th=[ 51643], 90.00th=[ 65799], 95.00th=[ 77071], | 99.00th=[112722], 99.50th=[129500], 99.90th=[164627], 99.95th=[164627], | 99.99th=[164627] bw ( KiB/s): min= 15, max= 112, per=25.16%, avg=60.89, stdev=21.07, samples=194 iops : min= 3, max= 28, avg=14.59, stdev= 5.29, samples=194 write: IOPS=15, BW=63.5KiB/s (65.0kB/s)(6260KiB/98583msec); 0 zone resets clat (usec): min=962, max=975100, avg=28305.17, stdev=37964.57 lat (usec): min=963, max=975102, avg=28308.53, stdev=37965.08 clat percentiles (usec): | 1.00th=[ 1074], 5.00th=[ 1188], 10.00th=[ 1565], 20.00th=[ 3326], | 30.00th=[ 6259], 40.00th=[ 11994], 50.00th=[ 20317], 60.00th=[ 26608], | 70.00th=[ 34341], 80.00th=[ 47973], 90.00th=[ 67634], 95.00th=[ 82314], | 99.00th=[128451], 99.50th=[166724], 99.90th=[263193], 99.95th=[977273], | 99.99th=[977273] bw ( KiB/s): min= 8, max= 127, per=25.13%, avg=63.58, stdev=24.15, samples=193 iops : min= 2, max= 31, avg=15.25, stdev= 6.02, samples=193 lat (usec) : 50=0.49%, 100=1.56%, 250=0.36%, 500=0.03%, 750=0.03% lat (usec) : 1000=0.07% lat (msec) : 2=6.28%, 4=5.63%, 10=8.07%, 20=14.84%, 50=42.32% lat (msec) : 100=17.94%, 250=2.31%, 500=0.03%, 1000=0.03% cpu : usr=0.07%, sys=6.36%, ctx=6462, 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=179333: Thu Aug 27 08:45:39 2026 read: IOPS=15, BW=61.0KiB/s (62.5kB/s)(6052KiB/99184msec) clat (usec): min=32, max=226256, avg=35691.29, stdev=24226.93 lat (usec): min=32, max=226257, avg=35695.16, stdev=24229.29 clat percentiles (usec): | 1.00th=[ 49], 5.00th=[ 87], 10.00th=[ 12387], 20.00th=[ 17695], | 30.00th=[ 21890], 40.00th=[ 25822], 50.00th=[ 31589], 60.00th=[ 36963], | 70.00th=[ 43779], 80.00th=[ 51119], 90.00th=[ 64226], 95.00th=[ 77071], | 99.00th=[123208], 99.50th=[147850], 99.90th=[181404], 99.95th=[225444], | 99.99th=[225444] bw ( KiB/s): min= 15, max= 119, per=25.09%, avg=60.72, stdev=20.82, samples=195 iops : min= 3, max= 29, avg=14.54, stdev= 5.22, samples=195 write: IOPS=15, BW=62.9KiB/s (64.4kB/s)(6236KiB/99184msec); 0 zone resets clat (usec): min=927, max=969208, avg=28709.62, stdev=36679.66 lat (usec): min=929, max=969209, avg=28712.20, stdev=36679.62 clat percentiles (usec): | 1.00th=[ 1074], 5.00th=[ 1205], 10.00th=[ 1729], 20.00th=[ 3326], | 30.00th=[ 6259], 40.00th=[ 13960], 50.00th=[ 21365], 60.00th=[ 28443], | 70.00th=[ 36439], 80.00th=[ 49021], 90.00th=[ 66847], 95.00th=[ 82314], | 99.00th=[123208], 99.50th=[147850], 99.90th=[185598], 99.95th=[968885], | 99.99th=[968885] bw ( KiB/s): min= 7, max= 144, per=24.69%, avg=62.48, stdev=25.11, samples=195 iops : min= 1, max= 36, avg=14.99, stdev= 6.32, samples=195 lat (usec) : 50=0.68%, 100=2.02%, 250=0.20%, 500=0.07%, 1000=0.13% lat (msec) : 2=6.12%, 4=5.47%, 10=7.10%, 20=15.07%, 50=43.13% lat (msec) : 100=18.00%, 250=1.99%, 1000=0.03% cpu : usr=0.09%, sys=6.30%, ctx=6507, 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=242KiB/s (248kB/s), 59.9KiB/s-61.4KiB/s (61.4kB/s-62.9kB/s), io=23.4MiB (24.6MB), run=97624-99184msec WRITE: bw=253KiB/s (260kB/s), 62.9KiB/s-64.5KiB/s (64.4kB/s-66.0kB/s), io=24.6MiB (25.7MB), run=97624-99184msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179335: Thu Aug 27 08:46:20 2026 read: IOPS=10, BW=42.9KiB/s (43.9kB/s)(5992KiB/139670msec) clat (msec): min=5, max=1010, avg=36.27, stdev=39.10 lat (msec): min=5, max=1010, avg=36.28, stdev=39.10 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 22], 50.00th=[ 26], 60.00th=[ 31], | 70.00th=[ 39], 80.00th=[ 52], 90.00th=[ 73], 95.00th=[ 105], | 99.00th=[ 150], 99.50th=[ 167], 99.90th=[ 268], 99.95th=[ 1011], | 99.99th=[ 1011] bw ( KiB/s): min= 7, max= 133, per=25.02%, avg=42.79, stdev=24.91, samples=273 iops : min= 1, max= 33, avg=10.05, stdev= 6.28, samples=273 write: IOPS=11, BW=45.1KiB/s (46.2kB/s)(6296KiB/139670msec); 0 zone resets clat (msec): min=9, max=401, avg=54.14, stdev=34.89 lat (msec): min=9, max=401, avg=54.14, stdev=34.89 clat percentiles (msec): | 1.00th=[ 15], 5.00th=[ 20], 10.00th=[ 24], 20.00th=[ 29], | 30.00th=[ 33], 40.00th=[ 39], 50.00th=[ 45], 60.00th=[ 53], | 70.00th=[ 63], 80.00th=[ 75], 90.00th=[ 97], 95.00th=[ 116], | 99.00th=[ 180], 99.50th=[ 222], 99.90th=[ 279], 99.95th=[ 401], | 99.99th=[ 401] bw ( KiB/s): min= 7, max= 126, per=25.00%, avg=44.75, stdev=22.68, samples=274 iops : min= 1, max= 31, avg=10.55, stdev= 5.69, samples=274 lat (msec) : 10=2.80%, 20=17.61%, 50=47.49%, 100=24.71%, 250=7.13% lat (msec) : 500=0.23%, 2000=0.03% cpu : usr=0.06%, sys=1.99%, ctx=4641, 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=179336: Thu Aug 27 08:46:20 2026 read: IOPS=10, BW=42.7KiB/s (43.7kB/s)(5940KiB/139172msec) clat (msec): min=5, max=945, avg=35.75, stdev=37.01 lat (msec): min=5, max=945, avg=35.75, stdev=37.01 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 22], 50.00th=[ 26], 60.00th=[ 31], | 70.00th=[ 38], 80.00th=[ 51], 90.00th=[ 72], 95.00th=[ 95], | 99.00th=[ 157], 99.50th=[ 167], 99.90th=[ 226], 99.95th=[ 944], | 99.99th=[ 944] bw ( KiB/s): min= 7, max= 135, per=25.11%, avg=42.94, stdev=24.94, samples=270 iops : min= 1, max= 33, avg=10.10, stdev= 6.29, samples=270 write: IOPS=11, BW=45.6KiB/s (46.7kB/s)(6348KiB/139172msec); 0 zone resets clat (msec): min=8, max=296, avg=54.15, stdev=33.86 lat (msec): min=8, max=296, avg=54.15, stdev=33.86 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 21], 10.00th=[ 24], 20.00th=[ 28], | 30.00th=[ 33], 40.00th=[ 38], 50.00th=[ 44], 60.00th=[ 52], | 70.00th=[ 63], 80.00th=[ 78], 90.00th=[ 99], 95.00th=[ 118], | 99.00th=[ 171], 99.50th=[ 213], 99.90th=[ 271], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 7, max= 110, per=25.30%, avg=45.28, stdev=22.24, samples=274 iops : min= 1, max= 27, avg=10.68, stdev= 5.59, samples=274 lat (msec) : 10=2.31%, 20=16.96%, 50=49.28%, 100=24.71%, 250=6.61% lat (msec) : 500=0.10%, 1000=0.03% cpu : usr=0.06%, sys=2.08%, ctx=4657, 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=179337: Thu Aug 27 08:46:20 2026 read: IOPS=10, BW=43.3KiB/s (44.3kB/s)(6028KiB/139350msec) clat (msec): min=5, max=230, avg=35.50, stdev=27.78 lat (msec): min=5, max=230, avg=35.51, stdev=27.78 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 20], 40.00th=[ 22], 50.00th=[ 27], 60.00th=[ 31], | 70.00th=[ 39], 80.00th=[ 51], 90.00th=[ 74], 95.00th=[ 97], | 99.00th=[ 132], 99.50th=[ 148], 99.90th=[ 194], 99.95th=[ 230], | 99.99th=[ 230] bw ( KiB/s): min= 7, max= 135, per=25.16%, avg=43.02, stdev=23.28, samples=273 iops : min= 1, max= 33, avg=10.12, stdev= 5.86, samples=273 write: IOPS=11, BW=44.9KiB/s (46.0kB/s)(6260KiB/139350msec); 0 zone resets clat (msec): min=11, max=957, avg=54.78, stdev=40.56 lat (msec): min=11, max=957, avg=54.79, stdev=40.56 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 21], 10.00th=[ 24], 20.00th=[ 29], | 30.00th=[ 34], 40.00th=[ 39], 50.00th=[ 45], 60.00th=[ 52], | 70.00th=[ 62], 80.00th=[ 77], 90.00th=[ 97], 95.00th=[ 120], | 99.00th=[ 178], 99.50th=[ 218], 99.90th=[ 292], 99.95th=[ 961], | 99.99th=[ 961] bw ( KiB/s): min= 7, max= 111, per=24.96%, avg=44.67, stdev=22.30, samples=273 iops : min= 1, max= 27, avg=10.53, stdev= 5.62, samples=273 lat (msec) : 10=1.92%, 20=16.89%, 50=49.97%, 100=24.58%, 250=6.48% lat (msec) : 500=0.13%, 1000=0.03% cpu : usr=0.07%, sys=2.07%, ctx=4721, 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=179338: Thu Aug 27 08:46:20 2026 read: IOPS=10, BW=43.5KiB/s (44.5kB/s)(6052KiB/139161msec) clat (msec): min=5, max=260, avg=35.63, stdev=28.95 lat (msec): min=5, max=260, avg=35.64, stdev=28.95 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 23], 50.00th=[ 27], 60.00th=[ 32], | 70.00th=[ 39], 80.00th=[ 51], 90.00th=[ 74], 95.00th=[ 96], | 99.00th=[ 148], 99.50th=[ 165], 99.90th=[ 209], 99.95th=[ 262], | 99.99th=[ 262] bw ( KiB/s): min= 7, max= 135, per=25.84%, avg=44.18, stdev=23.33, samples=268 iops : min= 1, max= 33, avg=10.41, stdev= 5.87, samples=268 write: IOPS=11, BW=44.8KiB/s (45.9kB/s)(6236KiB/139161msec); 0 zone resets clat (msec): min=11, max=921, avg=54.59, stdev=40.80 lat (msec): min=11, max=921, avg=54.59, stdev=40.80 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 21], 10.00th=[ 24], 20.00th=[ 29], | 30.00th=[ 34], 40.00th=[ 39], 50.00th=[ 45], 60.00th=[ 53], | 70.00th=[ 62], 80.00th=[ 74], 90.00th=[ 97], 95.00th=[ 120], | 99.00th=[ 169], 99.50th=[ 232], 99.90th=[ 401], 99.95th=[ 919], | 99.99th=[ 919] bw ( KiB/s): min= 7, max= 119, per=24.84%, avg=44.46, stdev=22.79, samples=274 iops : min= 1, max= 29, avg=10.48, stdev= 5.74, samples=274 lat (msec) : 10=2.47%, 20=16.11%, 50=50.03%, 100=24.74%, 250=6.38% lat (msec) : 500=0.23%, 1000=0.03% cpu : usr=0.08%, sys=1.99%, ctx=4724, 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=172KiB/s (176kB/s), 42.7KiB/s-43.5KiB/s (43.7kB/s-44.5kB/s), io=23.4MiB (24.6MB), run=139161-139670msec WRITE: bw=180KiB/s (184kB/s), 44.8KiB/s-45.6KiB/s (45.9kB/s-46.7kB/s), io=24.6MiB (25.7MB), run=139161-139670msec 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=179373: Thu Aug 27 08:47:00 2026 read: IOPS=12, BW=206KiB/s (211kB/s)(5920KiB/28763msec) clat (usec): min=39, max=312925, avg=41015.03, stdev=30230.44 lat (usec): min=39, max=312926, avg=41020.94, stdev=30233.36 clat percentiles (usec): | 1.00th=[ 50], 5.00th=[ 62], 10.00th=[ 660], 20.00th=[ 21103], | 30.00th=[ 27132], 40.00th=[ 33162], 50.00th=[ 38011], 60.00th=[ 42206], | 70.00th=[ 50070], 80.00th=[ 58459], 90.00th=[ 71828], 95.00th=[ 82314], | 99.00th=[122160], 99.50th=[246416], 99.90th=[312476], 99.95th=[312476], | 99.99th=[312476] bw ( KiB/s): min= 62, max= 375, per=25.74%, avg=204.39, stdev=73.88, samples=56 iops : min= 3, max= 23, avg=12.04, stdev= 4.67, samples=56 write: IOPS=13, BW=221KiB/s (227kB/s)(6368KiB/28763msec); 0 zone resets clat (usec): min=1370, max=226825, avg=33867.17, stdev=32462.36 lat (usec): min=1373, max=226828, avg=33868.94, stdev=32462.40 clat percentiles (usec): | 1.00th=[ 1565], 5.00th=[ 1811], 10.00th=[ 3359], 20.00th=[ 5932], | 30.00th=[ 9634], 40.00th=[ 18482], 50.00th=[ 25822], 60.00th=[ 33424], | 70.00th=[ 43779], 80.00th=[ 55313], 90.00th=[ 78119], 95.00th=[ 93848], | 99.00th=[156238], 99.50th=[166724], 99.90th=[227541], 99.95th=[227541], | 99.99th=[227541] bw ( KiB/s): min= 62, max= 379, per=26.50%, avg=221.54, stdev=72.65, samples=56 iops : min= 3, max= 23, avg=13.11, stdev= 4.59, samples=56 lat (usec) : 50=0.52%, 100=3.65%, 250=0.39%, 750=0.26% lat (msec) : 2=3.26%, 4=2.86%, 10=10.16%, 20=9.11%, 50=42.71% lat (msec) : 100=23.57%, 250=3.39%, 500=0.13% cpu : usr=0.06%, sys=6.26%, ctx=1675, majf=0, minf=18 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179374: Thu Aug 27 08:47:00 2026 read: IOPS=11, BW=192KiB/s (197kB/s)(5744KiB/29932msec) clat (usec): min=52, max=288209, avg=45213.57, stdev=31174.61 lat (usec): min=53, max=288210, avg=45214.66, stdev=31174.62 clat percentiles (usec): | 1.00th=[ 55], 5.00th=[ 71], 10.00th=[ 16909], 20.00th=[ 23987], | 30.00th=[ 28967], 40.00th=[ 33817], 50.00th=[ 38536], 60.00th=[ 45876], | 70.00th=[ 52691], 80.00th=[ 62653], 90.00th=[ 83362], 95.00th=[101188], | 99.00th=[139461], 99.50th=[173016], 99.90th=[287310], 99.95th=[287310], | 99.99th=[287310] bw ( KiB/s): min= 31, max= 349, per=24.18%, avg=192.02, stdev=67.37, samples=59 iops : min= 1, max= 21, avg=11.25, stdev= 4.23, samples=59 write: IOPS=13, BW=219KiB/s (224kB/s)(6544KiB/29932msec); 0 zone resets clat (usec): min=1476, max=162863, avg=33373.75, stdev=31816.42 lat (usec): min=1477, max=162865, avg=33375.66, stdev=31816.22 clat percentiles (usec): | 1.00th=[ 1663], 5.00th=[ 2057], 10.00th=[ 2966], 20.00th=[ 5342], | 30.00th=[ 9896], 40.00th=[ 17171], 50.00th=[ 24511], 60.00th=[ 33817], | 70.00th=[ 42206], 80.00th=[ 54789], 90.00th=[ 78119], 95.00th=[103285], | 99.00th=[131597], 99.50th=[139461], 99.90th=[162530], 99.95th=[162530], | 99.99th=[162530] bw ( KiB/s): min= 61, max= 407, per=25.99%, avg=217.31, stdev=90.11, samples=59 iops : min= 3, max= 25, avg=12.86, stdev= 5.73, samples=59 lat (usec) : 100=2.99%, 500=0.26%, 750=0.13% lat (msec) : 2=2.60%, 4=5.21%, 10=8.59%, 20=9.90%, 50=41.67% lat (msec) : 100=23.05%, 250=5.47%, 500=0.13% cpu : usr=0.07%, sys=6.01%, ctx=1699, majf=0, minf=18 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179375: Thu Aug 27 08:47:00 2026 read: IOPS=12, BW=208KiB/s (213kB/s)(6256KiB/30133msec) clat (usec): min=40, max=258552, avg=45511.21, stdev=29832.96 lat (usec): min=40, max=258553, avg=45512.20, stdev=29832.98 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 61], 10.00th=[ 16319], 20.00th=[ 24773], | 30.00th=[ 29754], 40.00th=[ 35390], 50.00th=[ 40109], 60.00th=[ 46400], | 70.00th=[ 55313], 80.00th=[ 66847], 90.00th=[ 81265], 95.00th=[ 98042], | 99.00th=[137364], 99.50th=[177210], 99.90th=[258999], 99.95th=[258999], | 99.99th=[258999] bw ( KiB/s): min= 62, max= 383, per=26.12%, avg=207.39, stdev=69.86, samples=59 iops : min= 3, max= 23, avg=12.22, stdev= 4.40, samples=59 write: IOPS=12, BW=200KiB/s (205kB/s)(6032KiB/30133msec); 0 zone resets clat (usec): min=1436, max=163230, avg=32443.35, stdev=31347.83 lat (usec): min=1437, max=163231, avg=32447.24, stdev=31346.13 clat percentiles (usec): | 1.00th=[ 1565], 5.00th=[ 2474], 10.00th=[ 3556], 20.00th=[ 6128], | 30.00th=[ 9241], 40.00th=[ 14484], 50.00th=[ 22152], 60.00th=[ 31851], | 70.00th=[ 41681], 80.00th=[ 55837], 90.00th=[ 76022], 95.00th=[ 95945], | 99.00th=[139461], 99.50th=[156238], 99.90th=[162530], 99.95th=[162530], | 99.99th=[162530] bw ( KiB/s): min= 63, max= 416, per=23.43%, avg=195.86, stdev=92.94, samples=59 iops : min= 3, max= 26, avg=11.51, stdev= 5.86, samples=59 lat (usec) : 50=0.26%, 100=2.86%, 250=0.13%, 500=0.39%, 750=0.13% lat (usec) : 1000=0.26% lat (msec) : 2=1.69%, 4=4.04%, 10=10.29%, 20=10.16%, 50=39.58% lat (msec) : 100=25.78%, 250=4.30%, 500=0.13% cpu : usr=0.09%, sys=5.66%, ctx=1708, 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=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=179376: Thu Aug 27 08:47:00 2026 read: IOPS=13, BW=208KiB/s (213kB/s)(6032KiB/28955msec) clat (usec): min=41, max=285652, avg=42700.09, stdev=31458.43 lat (usec): min=42, max=285652, avg=42710.67, stdev=31465.60 clat percentiles (usec): | 1.00th=[ 51], 5.00th=[ 58], 10.00th=[ 68], 20.00th=[ 22414], | 30.00th=[ 27132], 40.00th=[ 33162], 50.00th=[ 38011], 60.00th=[ 44827], | 70.00th=[ 52167], 80.00th=[ 62653], 90.00th=[ 78119], 95.00th=[ 92799], | 99.00th=[149947], 99.50th=[185598], 99.90th=[287310], 99.95th=[287310], | 99.99th=[287310] bw ( KiB/s): min= 93, max= 347, per=26.08%, avg=207.07, stdev=66.01, samples=57 iops : min= 5, max= 21, avg=12.19, stdev= 4.20, samples=57 write: IOPS=13, BW=216KiB/s (221kB/s)(6256KiB/28955msec); 0 zone resets clat (usec): min=1326, max=201041, avg=32498.27, stdev=33711.33 lat (usec): min=1327, max=201042, avg=32500.18, stdev=33711.34 clat percentiles (usec): | 1.00th=[ 1647], 5.00th=[ 2040], 10.00th=[ 3654], 20.00th=[ 5866], | 30.00th=[ 8455], 40.00th=[ 13042], 50.00th=[ 20579], 60.00th=[ 29230], | 70.00th=[ 39060], 80.00th=[ 57410], 90.00th=[ 82314], 95.00th=[103285], | 99.00th=[141558], 99.50th=[181404], 99.90th=[200279], 99.95th=[200279], | 99.99th=[200279] bw ( KiB/s): min= 31, max= 478, per=25.90%, avg=216.53, stdev=91.54, samples=57 iops : min= 1, max= 29, avg=12.79, stdev= 5.81, samples=57 lat (usec) : 50=0.39%, 100=5.34%, 250=0.65% lat (msec) : 2=2.34%, 4=3.26%, 10=11.33%, 20=9.77%, 50=39.19% lat (msec) : 100=22.92%, 250=4.69%, 500=0.13% cpu : usr=0.06%, sys=5.95%, ctx=1593, majf=0, minf=19 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=795KiB/s (814kB/s), 192KiB/s-208KiB/s (197kB/s-213kB/s), io=23.4MiB (24.5MB), run=28763-30133msec WRITE: bw=836KiB/s (856kB/s), 200KiB/s-221KiB/s (205kB/s-227kB/s), io=24.6MiB (25.8MB), run=28763-30133msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179378: Thu Aug 27 08:47:13 2026 read: IOPS=8, BW=141KiB/s (144kB/s)(5920KiB/42071msec) clat (msec): min=6, max=231, avg=45.19, stdev=37.32 lat (msec): min=6, max=231, avg=45.19, stdev=37.32 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 12], 10.00th=[ 15], 20.00th=[ 19], | 30.00th=[ 23], 40.00th=[ 28], 50.00th=[ 33], 60.00th=[ 39], | 70.00th=[ 48], 80.00th=[ 62], 90.00th=[ 103], 95.00th=[ 129], | 99.00th=[ 186], 99.50th=[ 218], 99.90th=[ 232], 99.95th=[ 232], | 99.99th=[ 232] bw ( KiB/s): min= 31, max= 508, per=24.64%, avg=138.23, stdev=81.55, samples=82 iops : min= 1, max= 31, avg= 7.85, stdev= 5.11, samples=82 write: IOPS=9, BW=151KiB/s (155kB/s)(6368KiB/42071msec); 0 zone resets clat (msec): min=13, max=348, avg=63.56, stdev=43.64 lat (msec): min=13, max=348, avg=63.57, stdev=43.64 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 22], 10.00th=[ 26], 20.00th=[ 31], | 30.00th=[ 37], 40.00th=[ 44], 50.00th=[ 50], 60.00th=[ 59], | 70.00th=[ 74], 80.00th=[ 87], 90.00th=[ 123], 95.00th=[ 150], | 99.00th=[ 213], 99.50th=[ 326], 99.90th=[ 351], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 31, max= 383, per=25.80%, avg=152.48, stdev=87.06, samples=81 iops : min= 1, max= 23, avg= 8.74, stdev= 5.45, samples=81 lat (msec) : 10=0.78%, 20=11.33%, 50=49.09%, 100=25.52%, 250=13.02% lat (msec) : 500=0.26% cpu : usr=0.04%, sys=1.77%, ctx=1204, 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=179379: Thu Aug 27 08:47:13 2026 read: IOPS=8, BW=135KiB/s (138kB/s)(5744KiB/42637msec) clat (msec): min=6, max=183, avg=44.09, stdev=34.66 lat (msec): min=6, max=183, avg=44.09, stdev=34.66 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 14], 20.00th=[ 20], | 30.00th=[ 24], 40.00th=[ 28], 50.00th=[ 33], 60.00th=[ 40], | 70.00th=[ 50], 80.00th=[ 63], 90.00th=[ 89], 95.00th=[ 127], | 99.00th=[ 171], 99.50th=[ 184], 99.90th=[ 184], 99.95th=[ 184], | 99.99th=[ 184] bw ( KiB/s): min= 22, max= 381, per=25.27%, avg=141.77, stdev=87.86, samples=78 iops : min= 1, max= 23, avg= 8.08, stdev= 5.50, samples=78 write: IOPS=9, BW=153KiB/s (157kB/s)(6544KiB/42637msec); 0 zone resets clat (msec): min=13, max=346, avg=65.36, stdev=49.16 lat (msec): min=13, max=346, avg=65.37, stdev=49.17 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 22], 10.00th=[ 25], 20.00th=[ 30], | 30.00th=[ 35], 40.00th=[ 41], 50.00th=[ 48], 60.00th=[ 57], | 70.00th=[ 70], 80.00th=[ 99], 90.00th=[ 132], 95.00th=[ 165], | 99.00th=[ 218], 99.50th=[ 292], 99.90th=[ 347], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 31, max= 381, per=25.52%, avg=150.82, stdev=85.12, samples=83 iops : min= 1, max= 23, avg= 8.64, stdev= 5.32, samples=83 lat (msec) : 10=1.69%, 20=10.55%, 50=48.70%, 100=25.00%, 250=13.67% lat (msec) : 500=0.39% cpu : usr=0.04%, sys=1.88%, ctx=1266, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179380: Thu Aug 27 08:47:13 2026 read: IOPS=9, BW=150KiB/s (154kB/s)(6256KiB/41586msec) clat (msec): min=6, max=293, avg=45.00, stdev=39.61 lat (msec): min=6, max=293, avg=45.00, stdev=39.61 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 14], 20.00th=[ 19], | 30.00th=[ 23], 40.00th=[ 29], 50.00th=[ 34], 60.00th=[ 40], | 70.00th=[ 48], 80.00th=[ 60], 90.00th=[ 95], 95.00th=[ 138], | 99.00th=[ 184], 99.50th=[ 220], 99.90th=[ 296], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 31, max= 445, per=26.71%, avg=149.84, stdev=98.37, samples=81 iops : min= 1, max= 27, avg= 8.58, stdev= 6.18, samples=81 write: IOPS=9, BW=145KiB/s (149kB/s)(6032KiB/41586msec); 0 zone resets clat (msec): min=13, max=319, avg=63.40, stdev=41.68 lat (msec): min=13, max=319, avg=63.40, stdev=41.68 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 22], 10.00th=[ 26], 20.00th=[ 32], | 30.00th=[ 39], 40.00th=[ 43], 50.00th=[ 52], 60.00th=[ 62], | 70.00th=[ 72], 80.00th=[ 88], 90.00th=[ 118], 95.00th=[ 148], | 99.00th=[ 188], 99.50th=[ 317], 99.90th=[ 321], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 31, max= 414, per=24.39%, avg=144.15, stdev=75.84, samples=80 iops : min= 1, max= 25, avg= 8.23, stdev= 4.72, samples=80 lat (msec) : 10=1.82%, 20=12.63%, 50=46.88%, 100=25.78%, 250=12.50% lat (msec) : 500=0.39% cpu : usr=0.06%, sys=1.87%, ctx=1305, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179381: Thu Aug 27 08:47:13 2026 read: IOPS=9, BW=145KiB/s (148kB/s)(6032KiB/41686msec) clat (msec): min=6, max=255, avg=47.39, stdev=41.52 lat (msec): min=6, max=255, avg=47.39, stdev=41.52 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 13], 10.00th=[ 16], 20.00th=[ 18], | 30.00th=[ 23], 40.00th=[ 28], 50.00th=[ 33], 60.00th=[ 40], | 70.00th=[ 48], 80.00th=[ 70], 90.00th=[ 110], 95.00th=[ 138], | 99.00th=[ 209], 99.50th=[ 232], 99.90th=[ 255], 99.95th=[ 255], | 99.99th=[ 255] bw ( KiB/s): min= 31, max= 413, per=26.00%, avg=145.86, stdev=82.80, samples=81 iops : min= 1, max= 25, avg= 8.31, stdev= 5.16, samples=81 write: IOPS=9, BW=150KiB/s (154kB/s)(6256KiB/41686msec); 0 zone resets clat (msec): min=12, max=226, avg=60.69, stdev=40.93 lat (msec): min=12, max=226, avg=60.69, stdev=40.93 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 21], 10.00th=[ 24], 20.00th=[ 30], | 30.00th=[ 35], 40.00th=[ 42], 50.00th=[ 48], 60.00th=[ 57], | 70.00th=[ 67], 80.00th=[ 87], 90.00th=[ 114], 95.00th=[ 148], | 99.00th=[ 213], 99.50th=[ 224], 99.90th=[ 226], 99.95th=[ 226], | 99.99th=[ 226] bw ( KiB/s): min= 31, max= 434, per=25.76%, avg=152.25, stdev=89.01, samples=81 iops : min= 1, max= 27, avg= 8.73, stdev= 5.61, samples=81 lat (msec) : 10=1.30%, 20=12.63%, 50=47.40%, 100=25.78%, 250=12.76% lat (msec) : 500=0.13% cpu : usr=0.05%, sys=1.90%, ctx=1238, 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=562KiB/s (575kB/s), 135KiB/s-150KiB/s (138kB/s-154kB/s), io=23.4MiB (24.5MB), run=41586-42637msec WRITE: bw=591KiB/s (605kB/s), 145KiB/s-153KiB/s (149kB/s-157kB/s), io=24.6MiB (25.8MB), run=41586-42637msec 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=179399: Thu Aug 27 08:47:27 2026 read: IOPS=2, BW=2401KiB/s (2458kB/s)(7168KiB/2986msec) clat (usec): min=680, max=422524, avg=234186.08, stdev=125712.32 lat (usec): min=680, max=422525, avg=234187.27, stdev=125712.39 clat percentiles (usec): | 1.00th=[ 685], 5.00th=[ 685], 10.00th=[ 685], 20.00th=[187696], | 30.00th=[244319], 40.00th=[244319], 50.00th=[248513], 60.00th=[263193], | 70.00th=[263193], 80.00th=[270533], 90.00th=[421528], 95.00th=[421528], | 99.00th=[421528], 99.50th=[421528], 99.90th=[421528], 99.95th=[421528], | 99.99th=[421528] bw ( KiB/s): min= 1597, max= 4079, per=50.70%, avg=2322.60, stdev=996.79, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 write: IOPS=1, BW=1715KiB/s (1756kB/s)(5120KiB/2986msec); 0 zone resets clat (msec): min=107, max=438, avg=223.96, stdev=134.09 lat (msec): min=108, max=438, avg=224.02, stdev=134.08 clat percentiles (msec): | 1.00th=[ 108], 5.00th=[ 108], 10.00th=[ 108], 20.00th=[ 108], | 30.00th=[ 115], 40.00th=[ 115], 50.00th=[ 211], 60.00th=[ 211], | 70.00th=[ 249], 80.00th=[ 249], 90.00th=[ 439], 95.00th=[ 439], | 99.00th=[ 439], 99.50th=[ 439], 99.90th=[ 439], 99.95th=[ 439], | 99.99th=[ 439] bw ( KiB/s): min= 1996, max= 3195, per=37.55%, avg=2408.67, stdev=681.26, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (usec) : 750=8.33% lat (msec) : 250=58.33%, 500=33.33% cpu : usr=0.00%, sys=17.82%, ctx=271, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179400: Thu Aug 27 08:47:27 2026 read: IOPS=0, BW=458KiB/s (469kB/s)(2048KiB/4470msec) clat (msec): min=204, max=232, avg=218.68, stdev=19.82 lat (msec): min=204, max=232, avg=218.69, stdev=19.82 clat percentiles (msec): | 1.00th=[ 205], 5.00th=[ 205], 10.00th=[ 205], 20.00th=[ 205], | 30.00th=[ 205], 40.00th=[ 205], 50.00th=[ 205], 60.00th=[ 232], | 70.00th=[ 232], 80.00th=[ 232], 90.00th=[ 232], 95.00th=[ 232], | 99.00th=[ 232], 99.50th=[ 232], 99.90th=[ 232], 99.95th=[ 232], | 99.99th=[ 232] bw ( KiB/s): min= 1367, max= 2011, per=36.87%, avg=1689.00, stdev=455.38, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2291KiB/s (2346kB/s)(10.0MiB/4470msec); 0 zone resets clat (msec): min=142, max=1320, avg=384.12, stdev=351.06 lat (msec): min=142, max=1320, avg=384.20, stdev=351.08 clat percentiles (msec): | 1.00th=[ 142], 5.00th=[ 142], 10.00th=[ 142], 20.00th=[ 192], | 30.00th=[ 199], 40.00th=[ 218], 50.00th=[ 239], 60.00th=[ 245], | 70.00th=[ 342], 80.00th=[ 384], 90.00th=[ 558], 95.00th=[ 1318], | 99.00th=[ 1318], 99.50th=[ 1318], 99.90th=[ 1318], 99.95th=[ 1318], | 99.99th=[ 1318] bw ( KiB/s): min= 1367, max= 4079, per=38.21%, avg=2450.71, stdev=1134.70, samples=7 iops : min= 1, max= 3, avg= 1.57, stdev= 0.98, samples=7 lat (msec) : 250=66.67%, 500=16.67%, 750=8.33%, 2000=8.33% cpu : usr=0.00%, sys=15.89%, ctx=193, 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=179401: Thu Aug 27 08:47:27 2026 read: IOPS=1, BW=1730KiB/s (1771kB/s)(6144KiB/3552msec) clat (usec): min=469, max=441636, avg=155582.21, stdev=185770.08 lat (usec): min=470, max=441638, avg=155583.40, stdev=185770.19 clat percentiles (usec): | 1.00th=[ 469], 5.00th=[ 469], 10.00th=[ 469], 20.00th=[ 889], | 30.00th=[ 889], 40.00th=[ 1172], 50.00th=[ 1172], 60.00th=[206570], | 70.00th=[283116], 80.00th=[283116], 90.00th=[442500], 95.00th=[442500], | 99.00th=[442500], 99.50th=[442500], 99.90th=[442500], 99.95th=[442500], | 99.99th=[442500] bw ( KiB/s): min= 3992, max= 6119, per=100.00%, avg=5055.50, stdev=1504.02, samples=2 iops : min= 3, max= 5, avg= 4.00, stdev= 1.41, samples=2 write: IOPS=1, BW=1730KiB/s (1771kB/s)(6144KiB/3552msec); 0 zone resets clat (msec): min=151, max=781, avg=408.90, stdev=293.98 lat (msec): min=151, max=781, avg=408.95, stdev=293.99 clat percentiles (msec): | 1.00th=[ 153], 5.00th=[ 153], 10.00th=[ 153], 20.00th=[ 157], | 30.00th=[ 157], 40.00th=[ 288], 50.00th=[ 288], 60.00th=[ 300], | 70.00th=[ 776], 80.00th=[ 776], 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= 1597, max= 4079, per=36.67%, avg=2351.80, stdev=983.57, samples=5 iops : min= 1, max= 3, avg= 1.60, stdev= 0.89, samples=5 lat (usec) : 500=8.33%, 1000=8.33% lat (msec) : 2=8.33%, 250=25.00%, 500=33.33%, 1000=16.67% cpu : usr=0.00%, sys=15.71%, ctx=166, 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=179402: Thu Aug 27 08:47:27 2026 read: IOPS=1, BW=1893KiB/s (1938kB/s)(5120KiB/2705msec) clat (usec): min=842, max=398650, avg=110467.87, stdev=173685.28 lat (usec): min=843, max=398650, avg=110468.69, stdev=173685.03 clat percentiles (usec): | 1.00th=[ 840], 5.00th=[ 840], 10.00th=[ 840], 20.00th=[ 840], | 30.00th=[ 930], 40.00th=[ 930], 50.00th=[ 1057], 60.00th=[ 1057], | 70.00th=[149947], 80.00th=[149947], 90.00th=[400557], 95.00th=[400557], | 99.00th=[400557], 99.50th=[400557], 99.90th=[400557], 99.95th=[400557], | 99.99th=[400557] bw ( KiB/s): min= 1996, max= 6107, per=88.44%, avg=4051.50, stdev=2906.92, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=2, BW=2650KiB/s (2714kB/s)(7168KiB/2705msec); 0 zone resets clat (msec): min=152, max=561, avg=297.79, stdev=179.83 lat (msec): min=152, max=561, avg=297.90, stdev=179.79 clat percentiles (msec): | 1.00th=[ 153], 5.00th=[ 153], 10.00th=[ 153], 20.00th=[ 161], | 30.00th=[ 169], 40.00th=[ 169], 50.00th=[ 199], 60.00th=[ 309], | 70.00th=[ 309], 80.00th=[ 542], 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= 1597, max= 4071, per=36.38%, avg=2333.60, stdev=987.14, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (usec) : 1000=16.67% lat (msec) : 2=8.33%, 250=41.67%, 500=16.67%, 750=16.67% cpu : usr=0.04%, sys=19.60%, ctx=101, 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=4582KiB/s (4692kB/s), 458KiB/s-2401KiB/s (469kB/s-2458kB/s), io=20.0MiB (20.0MB), run=2705-4470msec WRITE: bw=6414KiB/s (6568kB/s), 1715KiB/s-2650KiB/s (1756kB/s-2714kB/s), io=28.0MiB (29.4MB), run=2705-4470msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179395: Thu Aug 27 08:47:27 2026 read: IOPS=1, BW=1799KiB/s (1842kB/s)(7168KiB/3984msec) clat (msec): min=77, max=923, avg=233.52, stdev=306.26 lat (msec): min=77, max=923, avg=233.52, stdev=306.26 clat percentiles (msec): | 1.00th=[ 79], 5.00th=[ 79], 10.00th=[ 79], 20.00th=[ 91], | 30.00th=[ 102], 40.00th=[ 102], 50.00th=[ 116], 60.00th=[ 140], | 70.00th=[ 140], 80.00th=[ 186], 90.00th=[ 927], 95.00th=[ 927], | 99.00th=[ 927], 99.50th=[ 927], 99.90th=[ 927], 99.95th=[ 927], | 99.99th=[ 927] bw ( KiB/s): min= 1984, max= 3992, per=67.68%, avg=2978.50, stdev=1130.87, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 write: IOPS=1, BW=1285KiB/s (1316kB/s)(5120KiB/3984msec); 0 zone resets clat (msec): min=103, max=735, avg=426.72, stdev=260.30 lat (msec): min=103, max=735, avg=426.87, stdev=260.33 clat percentiles (msec): | 1.00th=[ 105], 5.00th=[ 105], 10.00th=[ 105], 20.00th=[ 105], | 30.00th=[ 215], 40.00th=[ 215], 50.00th=[ 514], 60.00th=[ 514], | 70.00th=[ 567], 80.00th=[ 567], 90.00th=[ 735], 95.00th=[ 735], | 99.00th=[ 735], 99.50th=[ 735], 99.90th=[ 735], 99.95th=[ 735], | 99.99th=[ 735] bw ( KiB/s): min= 1961, max= 4031, per=43.12%, avg=2657.33, stdev=1189.67, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 100=16.67%, 250=50.00%, 750=25.00%, 1000=8.33% cpu : usr=0.00%, sys=5.93%, ctx=153, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179396: Thu Aug 27 08:47:27 2026 read: IOPS=0, BW=461KiB/s (472kB/s)(2048KiB/4446msec) clat (msec): min=97, max=150, avg=124.24, stdev=37.41 lat (msec): min=97, max=150, avg=124.24, stdev=37.41 clat percentiles (msec): | 1.00th=[ 99], 5.00th=[ 99], 10.00th=[ 99], 20.00th=[ 99], | 30.00th=[ 99], 40.00th=[ 99], 50.00th=[ 99], 60.00th=[ 150], | 70.00th=[ 150], 80.00th=[ 150], 90.00th=[ 150], 95.00th=[ 150], | 99.00th=[ 150], 99.50th=[ 150], 99.90th=[ 150], 99.95th=[ 150], | 99.99th=[ 150] bw ( KiB/s): min= 1592, max= 1924, per=39.95%, avg=1758.00, stdev=234.76, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2303KiB/s (2358kB/s)(10.0MiB/4446msec); 0 zone resets clat (msec): min=103, max=1463, avg=413.43, stdev=419.41 lat (msec): min=103, max=1466, avg=413.91, stdev=420.09 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 104], 10.00th=[ 104], 20.00th=[ 107], | 30.00th=[ 115], 40.00th=[ 136], 50.00th=[ 226], 60.00th=[ 305], | 70.00th=[ 481], 80.00th=[ 567], 90.00th=[ 634], 95.00th=[ 1469], | 99.00th=[ 1469], 99.50th=[ 1469], 99.90th=[ 1469], 99.95th=[ 1469], | 99.99th=[ 1469] bw ( KiB/s): min= 1592, max= 6095, per=55.46%, avg=3417.20, stdev=2186.00, samples=5 iops : min= 1, max= 5, avg= 2.60, stdev= 2.19, samples=5 lat (msec) : 100=8.33%, 250=50.00%, 500=16.67%, 750=16.67%, 2000=8.33% cpu : usr=0.02%, sys=6.46%, ctx=108, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179397: Thu Aug 27 08:47:27 2026 read: IOPS=1, BW=1398KiB/s (1432kB/s)(6144KiB/4395msec) clat (msec): min=115, max=644, avg=272.11, stdev=203.02 lat (msec): min=115, max=644, avg=272.11, stdev=203.02 clat percentiles (msec): | 1.00th=[ 116], 5.00th=[ 116], 10.00th=[ 116], 20.00th=[ 129], | 30.00th=[ 129], 40.00th=[ 150], 50.00th=[ 150], 60.00th=[ 247], | 70.00th=[ 351], 80.00th=[ 351], 90.00th=[ 642], 95.00th=[ 642], | 99.00th=[ 642], 99.50th=[ 642], 99.90th=[ 642], 99.95th=[ 642], | 99.99th=[ 642] bw ( KiB/s): min= 1592, max= 4031, per=54.62%, avg=2403.75, stdev=1101.79, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1398KiB/s (1432kB/s)(6144KiB/4395msec); 0 zone resets clat (msec): min=105, max=802, avg=441.16, stdev=260.44 lat (msec): min=105, max=802, avg=441.25, stdev=260.43 clat percentiles (msec): | 1.00th=[ 106], 5.00th=[ 106], 10.00th=[ 106], 20.00th=[ 271], | 30.00th=[ 271], 40.00th=[ 384], 50.00th=[ 384], 60.00th=[ 393], | 70.00th=[ 693], 80.00th=[ 693], 90.00th=[ 802], 95.00th=[ 802], | 99.00th=[ 802], 99.50th=[ 802], 99.90th=[ 802], 99.95th=[ 802], | 99.99th=[ 802] bw ( KiB/s): min= 1831, max= 4063, per=38.45%, avg=2369.20, stdev=949.21, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (msec) : 250=41.67%, 500=33.33%, 750=16.67%, 1000=8.33% cpu : usr=0.05%, sys=5.19%, ctx=116, 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=179398: Thu Aug 27 08:47:27 2026 read: IOPS=1, BW=1100KiB/s (1127kB/s)(5120KiB/4653msec) clat (msec): min=54, max=464, avg=289.44, stdev=186.96 lat (msec): min=54, max=464, avg=289.44, stdev=186.96 clat percentiles (msec): | 1.00th=[ 55], 5.00th=[ 55], 10.00th=[ 55], 20.00th=[ 55], | 30.00th=[ 125], 40.00th=[ 125], 50.00th=[ 376], 60.00th=[ 376], | 70.00th=[ 430], 80.00th=[ 430], 90.00th=[ 464], 95.00th=[ 464], | 99.00th=[ 464], 99.50th=[ 464], 99.90th=[ 464], 99.95th=[ 464], | 99.99th=[ 464] bw ( KiB/s): min= 1980, max= 4031, per=60.91%, avg=2680.67, stdev=1169.70, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=1, BW=1541KiB/s (1577kB/s)(7168KiB/4653msec); 0 zone resets clat (msec): min=99, max=860, avg=431.63, stdev=251.84 lat (msec): min=100, max=861, avg=431.71, stdev=251.84 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 101], 10.00th=[ 101], 20.00th=[ 157], | 30.00th=[ 430], 40.00th=[ 430], 50.00th=[ 485], 60.00th=[ 493], | 70.00th=[ 493], 80.00th=[ 498], 90.00th=[ 860], 95.00th=[ 860], | 99.00th=[ 860], 99.50th=[ 860], 99.90th=[ 860], 99.95th=[ 860], | 99.99th=[ 860] bw ( KiB/s): min= 1592, max= 2031, per=30.55%, avg=1882.20, stdev=178.98, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 100=16.67%, 250=16.67%, 500=58.33%, 1000=8.33% cpu : usr=0.00%, sys=4.92%, ctx=80, 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=4401KiB/s (4507kB/s), 461KiB/s-1799KiB/s (472kB/s-1842kB/s), io=20.0MiB (20.0MB), run=3984-4653msec WRITE: bw=6162KiB/s (6310kB/s), 1285KiB/s-2303KiB/s (1316kB/s-2358kB/s), io=28.0MiB (29.4MB), run=3984-4653msec 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=179409: Thu Aug 27 08:47:41 2026 read: IOPS=0, BW=3392KiB/s (3473kB/s)(12.0MiB/3623msec) clat (msec): min=719, max=1946, avg=1186.63, stdev=663.42 lat (msec): min=719, max=1946, avg=1186.63, stdev=663.42 clat percentiles (msec): | 1.00th=[ 718], 5.00th=[ 718], 10.00th=[ 718], 20.00th=[ 718], | 30.00th=[ 718], 40.00th=[ 894], 50.00th=[ 894], 60.00th=[ 894], | 70.00th=[ 1938], 80.00th=[ 1938], 90.00th=[ 1938], 95.00th=[ 1938], | 99.00th=[ 1938], 99.50th=[ 1938], 99.90th=[ 1938], 99.95th=[ 1938], | 99.99th=[ 1938] bw ( KiB/s): min= 8078, max= 8175, per=100.00%, avg=8126.50, stdev=68.59, 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=13.80%, ctx=643, 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=179411: Thu Aug 27 08:47:41 2026 read: IOPS=0, BW=956KiB/s (979kB/s)(4096KiB/4286msec) clat (nsec): min=1940.0M, max=1940.0M, avg=1940030729.00, stdev= 0.00 lat (nsec): min=1940.0M, max=1940.0M, avg=1940033398.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1938], 5.00th=[ 1938], 10.00th=[ 1938], 20.00th=[ 1938], | 30.00th=[ 1938], 40.00th=[ 1938], 50.00th=[ 1938], 60.00th=[ 1938], | 70.00th=[ 1938], 80.00th=[ 1938], 90.00th=[ 1938], 95.00th=[ 1938], | 99.00th=[ 1938], 99.50th=[ 1938], 99.90th=[ 1938], 99.95th=[ 1938], | 99.99th=[ 1938] bw ( KiB/s): min= 8175, max= 8175, per=100.00%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=1911KiB/s (1957kB/s)(8192KiB/4286msec); 0 zone resets clat (msec): min=710, max=1532, avg=1121.43, stdev=581.44 lat (msec): min=710, max=1533, avg=1121.83, stdev=581.63 clat percentiles (msec): | 1.00th=[ 709], 5.00th=[ 709], 10.00th=[ 709], 20.00th=[ 709], | 30.00th=[ 709], 40.00th=[ 709], 50.00th=[ 709], 60.00th=[ 1536], | 70.00th=[ 1536], 80.00th=[ 1536], 90.00th=[ 1536], 95.00th=[ 1536], | 99.00th=[ 1536], 99.50th=[ 1536], 99.90th=[ 1536], 99.95th=[ 1536], | 99.99th=[ 1536] bw ( KiB/s): min= 8078, max= 8078, per=100.00%, avg=8078.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=33.33%, 2000=66.67% cpu : usr=0.00%, sys=5.06%, ctx=404, 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=179413: Thu Aug 27 08:47:41 2026 write: IOPS=0, BW=2716KiB/s (2781kB/s)(12.0MiB/4525msec); 0 zone resets clat (msec): min=177, max=2543, avg=1455.92, stdev=1194.63 lat (msec): min=177, max=2544, avg=1456.36, stdev=1194.58 clat percentiles (msec): | 1.00th=[ 178], 5.00th=[ 178], 10.00th=[ 178], 20.00th=[ 178], | 30.00th=[ 178], 40.00th=[ 1653], 50.00th=[ 1653], 60.00th=[ 1653], | 70.00th=[ 2534], 80.00th=[ 2534], 90.00th=[ 2534], 95.00th=[ 2534], | 99.00th=[ 2534], 99.50th=[ 2534], 99.90th=[ 2534], 99.95th=[ 2534], | 99.99th=[ 2534] bw ( KiB/s): min= 8078, max= 8078, per=100.00%, avg=8078.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=2.81%, ctx=57, 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=179415: Thu Aug 27 08:47:41 2026 write: IOPS=0, BW=3030KiB/s (3102kB/s)(12.0MiB/4056msec); 0 zone resets clat (msec): min=260, max=2279, avg=1289.13, stdev=1010.02 lat (msec): min=260, max=2279, avg=1289.45, stdev=1010.00 clat percentiles (msec): | 1.00th=[ 262], 5.00th=[ 262], 10.00th=[ 262], 20.00th=[ 262], | 30.00th=[ 262], 40.00th=[ 1334], 50.00th=[ 1334], 60.00th=[ 1334], | 70.00th=[ 2265], 80.00th=[ 2265], 90.00th=[ 2265], 95.00th=[ 2265], | 99.00th=[ 2265], 99.50th=[ 2265], 99.90th=[ 2265], 99.95th=[ 2265], | 99.99th=[ 2265] bw ( KiB/s): min= 7861, max= 7861, per=100.00%, avg=7861.00, 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=3.03%, ctx=65, 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=3823KiB/s (3914kB/s), 956KiB/s-3392KiB/s (979kB/s-3473kB/s), io=16.0MiB (16.8MB), run=3623-4286msec WRITE: bw=7242KiB/s (7415kB/s), 1911KiB/s-3030KiB/s (1957kB/s-3102kB/s), io=32.0MiB (33.6MB), run=4056-4525msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179410: Thu Aug 27 08:47:41 2026 read: IOPS=0, BW=2862KiB/s (2931kB/s)(12.0MiB/4293msec) clat (msec): min=250, max=2288, avg=1359.36, stdev=1031.00 lat (msec): min=250, max=2288, avg=1359.36, stdev=1031.00 clat percentiles (msec): | 1.00th=[ 251], 5.00th=[ 251], 10.00th=[ 251], 20.00th=[ 251], | 30.00th=[ 251], 40.00th=[ 1536], 50.00th=[ 1536], 60.00th=[ 1536], | 70.00th=[ 2299], 80.00th=[ 2299], 90.00th=[ 2299], 95.00th=[ 2299], | 99.00th=[ 2299], 99.50th=[ 2299], 99.90th=[ 2299], 99.95th=[ 2299], | 99.99th=[ 2299] bw ( KiB/s): min= 7876, max= 8078, per=100.00%, avg=7977.00, stdev=142.84, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=2.96%, ctx=72, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179412: Thu Aug 27 08:47:41 2026 read: IOPS=0, BW=889KiB/s (911kB/s)(4096KiB/4606msec) clat (nsec): min=2022.8M, max=2022.8M, avg=2022848422.00, stdev= 0.00 lat (nsec): min=2022.8M, max=2022.8M, avg=2022850305.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 2022], 5.00th=[ 2022], 10.00th=[ 2022], 20.00th=[ 2022], | 30.00th=[ 2022], 40.00th=[ 2022], 50.00th=[ 2022], 60.00th=[ 2022], | 70.00th=[ 2022], 80.00th=[ 2022], 90.00th=[ 2022], 95.00th=[ 2022], | 99.00th=[ 2022], 99.50th=[ 2022], 99.90th=[ 2022], 99.95th=[ 2022], | 99.99th=[ 2022] 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 write: IOPS=0, BW=1779KiB/s (1821kB/s)(8192KiB/4606msec); 0 zone resets clat (msec): min=785, max=1732, avg=1259.38, stdev=669.74 lat (msec): min=786, max=1733, avg=1259.78, stdev=669.64 clat percentiles (msec): | 1.00th=[ 785], 5.00th=[ 785], 10.00th=[ 785], 20.00th=[ 785], | 30.00th=[ 785], 40.00th=[ 785], 50.00th=[ 785], 60.00th=[ 1737], | 70.00th=[ 1737], 80.00th=[ 1737], 90.00th=[ 1737], 95.00th=[ 1737], | 99.00th=[ 1737], 99.50th=[ 1737], 99.90th=[ 1737], 99.95th=[ 1737], | 99.99th=[ 1737] bw ( KiB/s): min= 8062, max= 8062, per=100.00%, avg=8062.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 1000=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=3.37%, ctx=54, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=179414: Thu Aug 27 08:47:41 2026 write: IOPS=0, BW=3192KiB/s (3268kB/s)(12.0MiB/3850msec); 0 zone resets clat (msec): min=429, max=2199, avg=1263.31, stdev=889.65 lat (msec): min=429, max=2199, avg=1263.84, stdev=889.64 clat percentiles (msec): | 1.00th=[ 430], 5.00th=[ 430], 10.00th=[ 430], 20.00th=[ 430], | 30.00th=[ 430], 40.00th=[ 1167], 50.00th=[ 1167], 60.00th=[ 1167], | 70.00th=[ 2198], 80.00th=[ 2198], 90.00th=[ 2198], 95.00th=[ 2198], | 99.00th=[ 2198], 99.50th=[ 2198], 99.90th=[ 2198], 99.95th=[ 2198], | 99.99th=[ 2198] bw ( KiB/s): min= 7876, max= 8159, per=100.00%, avg=8017.50, stdev=200.11, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=3.14%, ctx=73, 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=179416: Thu Aug 27 08:47:41 2026 write: IOPS=0, BW=3546KiB/s (3631kB/s)(12.0MiB/3465msec); 0 zone resets clat (msec): min=418, max=2056, avg=1104.54, stdev=850.71 lat (msec): min=419, max=2059, avg=1105.59, stdev=851.90 clat percentiles (msec): | 1.00th=[ 418], 5.00th=[ 418], 10.00th=[ 418], 20.00th=[ 418], | 30.00th=[ 418], 40.00th=[ 835], 50.00th=[ 835], 60.00th=[ 835], | 70.00th=[ 2056], 80.00th=[ 2056], 90.00th=[ 2056], 95.00th=[ 2056], | 99.00th=[ 2056], 99.50th=[ 2056], 99.90th=[ 2056], 99.95th=[ 2056], | 99.99th=[ 2056] bw ( KiB/s): min= 7876, max= 8062, per=100.00%, avg=7969.00, stdev=131.52, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 1000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=6.06%, ctx=68, 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=3557KiB/s (3642kB/s), 889KiB/s-2862KiB/s (911kB/s-2931kB/s), io=16.0MiB (16.8MB), run=4293-4606msec WRITE: bw=7114KiB/s (7285kB/s), 1779KiB/s-3546KiB/s (1821kB/s-3631kB/s), io=32.0MiB (33.6MB), run=3465-4606msec