== sanity test 398b: DIO and buffer IO race ============== 18:44:59 (1788216299) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 6.47391 s, 7.8 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=144690: Mon Aug 31 18:47:29 2026 read: IOPS=11, BW=46.6KiB/s (47.7kB/s)(5992KiB/128557msec) clat (usec): min=32, max=1163.3k, avg=42678.28, stdev=43523.75 lat (usec): min=32, max=1163.3k, avg=42679.90, stdev=43524.11 clat percentiles (usec): | 1.00th=[ 48], 5.00th=[ 60], 10.00th=[ 1729], | 20.00th=[ 20055], 30.00th=[ 25035], 40.00th=[ 30016], | 50.00th=[ 35390], 60.00th=[ 42730], 70.00th=[ 51119], | 80.00th=[ 62129], 90.00th=[ 80217], 95.00th=[ 98042], | 99.00th=[ 143655], 99.50th=[ 183501], 99.90th=[ 467665], | 99.95th=[1166017], 99.99th=[1166017] bw ( KiB/s): min= 7, max= 112, per=24.90%, avg=46.31, stdev=19.19, samples=252 iops : min= 1, max= 28, avg=10.94, stdev= 4.84, samples=252 write: IOPS=12, BW=48.0KiB/s (50.1kB/s)(6296KiB/128557msec); 0 zone resets clat (usec): min=961, max=275978, avg=40775.50, stdev=40864.57 lat (usec): min=962, max=275980, avg=40778.00, stdev=40865.80 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1156], 10.00th=[ 1434], 20.00th=[ 3949], | 30.00th=[ 9241], 40.00th=[ 19792], 50.00th=[ 28967], 60.00th=[ 41157], | 70.00th=[ 54264], 80.00th=[ 69731], 90.00th=[ 98042], 95.00th=[125305], | 99.00th=[173016], 99.50th=[187696], 99.90th=[235930], 99.95th=[274727], | 99.99th=[274727] bw ( KiB/s): min= 7, max= 135, per=25.27%, avg=49.02, stdev=20.80, samples=250 iops : min= 1, max= 33, avg=11.61, stdev= 5.25, samples=250 lat (usec) : 50=0.72%, 100=3.65%, 250=0.29%, 500=0.03%, 750=0.07% lat (usec) : 1000=0.10% lat (msec) : 2=6.61%, 4=3.78%, 10=5.76%, 20=9.34%, 50=37.66% lat (msec) : 100=24.80%, 250=7.06%, 500=0.10%, 2000=0.03% cpu : usr=0.08%, sys=4.79%, ctx=6252, 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=144691: Mon Aug 31 18:47:29 2026 read: IOPS=11, BW=46.6KiB/s (47.7kB/s)(5940KiB/127602msec) clat (usec): min=35, max=318142, avg=41555.68, stdev=30682.42 lat (usec): min=36, max=318143, avg=41561.86, stdev=30677.04 clat percentiles (usec): | 1.00th=[ 49], 5.00th=[ 60], 10.00th=[ 343], 20.00th=[ 19006], | 30.00th=[ 25035], 40.00th=[ 29230], 50.00th=[ 35390], 60.00th=[ 42730], | 70.00th=[ 52691], 80.00th=[ 63701], 90.00th=[ 80217], 95.00th=[ 93848], | 99.00th=[137364], 99.50th=[173016], 99.90th=[263193], 99.95th=[316670], | 99.99th=[316670] bw ( KiB/s): min= 6, max= 119, per=25.06%, avg=46.61, stdev=20.27, samples=248 iops : min= 1, max= 29, avg=11.01, stdev= 5.13, samples=248 write: IOPS=12, BW=49.7KiB/s (50.9kB/s)(6348KiB/127602msec); 0 zone resets clat (usec): min=710, max=1010.6k, avg=41218.87, stdev=48434.59 lat (usec): min=711, max=1010.6k, avg=41221.02, stdev=48434.14 clat percentiles (usec): | 1.00th=[ 1012], 5.00th=[ 1139], 10.00th=[ 1254], | 20.00th=[ 3785], 30.00th=[ 8848], 40.00th=[ 18744], | 50.00th=[ 29492], 60.00th=[ 41157], 70.00th=[ 54264], | 80.00th=[ 70779], 90.00th=[ 95945], 95.00th=[ 117965], | 99.00th=[ 187696], 99.50th=[ 212861], 99.90th=[ 367002], | 99.95th=[1010828], 99.99th=[1010828] bw ( KiB/s): min= 6, max= 141, per=25.48%, avg=49.44, stdev=20.71, samples=250 iops : min= 1, max= 35, avg=11.72, stdev= 5.23, samples=250 lat (usec) : 50=0.52%, 100=4.00%, 250=0.29%, 500=0.07%, 750=0.03% lat (usec) : 1000=0.36% lat (msec) : 2=7.26%, 4=3.09%, 10=5.92%, 20=9.77%, 50=35.77% lat (msec) : 100=26.60%, 250=6.15%, 500=0.13%, 2000=0.03% cpu : usr=0.08%, sys=4.75%, ctx=6136, 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=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=144692: Mon Aug 31 18:47:29 2026 read: IOPS=11, BW=46.7KiB/s (47.9kB/s)(6028KiB/128973msec) clat (usec): min=32, max=285911, avg=40035.89, stdev=29919.56 lat (usec): min=32, max=285912, avg=40038.45, stdev=29918.96 clat percentiles (usec): | 1.00th=[ 45], 5.00th=[ 59], 10.00th=[ 129], 20.00th=[ 19268], | 30.00th=[ 23725], 40.00th=[ 28443], 50.00th=[ 34341], 60.00th=[ 41157], | 70.00th=[ 48497], 80.00th=[ 59507], 90.00th=[ 77071], 95.00th=[ 94897], | 99.00th=[135267], 99.50th=[149947], 99.90th=[242222], 99.95th=[287310], | 99.99th=[287310] bw ( KiB/s): min= 7, max= 117, per=25.35%, avg=47.15, stdev=20.81, samples=248 iops : min= 1, max= 29, avg=11.13, stdev= 5.24, samples=248 write: IOPS=12, BW=48.5KiB/s (49.7kB/s)(6260KiB/128973msec); 0 zone resets clat (usec): min=744, max=1269.6k, avg=43541.03, stdev=54634.39 lat (usec): min=745, max=1269.6k, avg=43544.04, stdev=54635.37 clat percentiles (usec): | 1.00th=[ 1029], 5.00th=[ 1156], 10.00th=[ 1319], | 20.00th=[ 3884], 30.00th=[ 8848], 40.00th=[ 20317], | 50.00th=[ 31851], 60.00th=[ 44303], 70.00th=[ 55837], | 80.00th=[ 73925], 90.00th=[ 99091], 95.00th=[ 125305], | 99.00th=[ 214959], 99.50th=[ 254804], 99.90th=[ 358613], | 99.95th=[1266680], 99.99th=[1266680] bw ( KiB/s): min= 7, max= 127, per=24.97%, avg=48.44, stdev=19.85, samples=250 iops : min= 1, max= 31, avg=11.46, stdev= 5.02, samples=250 lat (usec) : 50=1.01%, 100=3.71%, 250=0.39%, 500=0.10%, 750=0.03% lat (usec) : 1000=0.29% lat (msec) : 2=6.58%, 4=3.68%, 10=6.09%, 20=8.66%, 50=37.50% lat (msec) : 100=25.07%, 250=6.58%, 500=0.29%, 2000=0.03% cpu : usr=0.07%, sys=4.82%, ctx=6181, 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=144694: Mon Aug 31 18:47:29 2026 read: IOPS=11, BW=46.9KiB/s (48.0kB/s)(6052KiB/129096msec) clat (usec): min=21, max=1029.6k, avg=41665.87, stdev=40206.30 lat (usec): min=22, max=1029.6k, avg=41667.55, stdev=40206.06 clat percentiles (usec): | 1.00th=[ 44], 5.00th=[ 59], 10.00th=[ 129], | 20.00th=[ 19268], 30.00th=[ 24249], 40.00th=[ 29230], | 50.00th=[ 35390], 60.00th=[ 42730], 70.00th=[ 51119], | 80.00th=[ 60556], 90.00th=[ 78119], 95.00th=[ 94897], | 99.00th=[ 137364], 99.50th=[ 206570], 99.90th=[ 278922], | 99.95th=[1027605], 99.99th=[1027605] bw ( KiB/s): min= 6, max= 103, per=25.26%, avg=46.98, stdev=19.19, samples=251 iops : min= 1, max= 25, avg=11.09, stdev= 4.85, samples=251 write: IOPS=12, BW=48.3KiB/s (49.5kB/s)(6236KiB/129096msec); 0 zone resets clat (usec): min=788, max=660004, avg=42092.39, stdev=46165.44 lat (usec): min=789, max=660006, avg=42095.17, stdev=46165.18 clat percentiles (usec): | 1.00th=[ 988], 5.00th=[ 1139], 10.00th=[ 1237], 20.00th=[ 3654], | 30.00th=[ 9634], 40.00th=[ 20317], 50.00th=[ 31327], 60.00th=[ 41681], | 70.00th=[ 55313], 80.00th=[ 71828], 90.00th=[101188], 95.00th=[123208], | 99.00th=[179307], 99.50th=[248513], 99.90th=[387974], 99.95th=[658506], | 99.99th=[658506] bw ( KiB/s): min= 7, max= 103, per=24.80%, avg=48.10, stdev=18.83, samples=252 iops : min= 1, max= 25, avg=11.38, stdev= 4.75, samples=252 lat (usec) : 50=0.72%, 100=3.94%, 250=0.39%, 500=0.10%, 750=0.10% lat (usec) : 1000=0.55% lat (msec) : 2=7.32%, 4=2.80%, 10=5.47%, 20=9.21%, 50=37.40% lat (msec) : 100=24.87%, 250=6.84%, 500=0.23%, 750=0.03%, 2000=0.03% cpu : usr=0.09%, sys=4.91%, ctx=6253, 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=186KiB/s (190kB/s), 46.6KiB/s-46.9KiB/s (47.7kB/s-48.0kB/s), io=23.4MiB (24.6MB), run=127602-129096msec WRITE: bw=195KiB/s (199kB/s), 48.3KiB/s-49.7KiB/s (49.5kB/s-50.9kB/s), io=24.6MiB (25.7MB), run=127602-129096msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144693: Mon Aug 31 18:49:54 2026 read: IOPS=5, BW=21.0KiB/s (22.5kB/s)(5992KiB/272837msec) clat (msec): min=4, max=1196, avg=36.52, stdev=45.77 lat (msec): min=4, max=1196, avg=36.52, stdev=45.77 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 24], 60.00th=[ 30], | 70.00th=[ 38], 80.00th=[ 50], 90.00th=[ 81], 95.00th=[ 106], | 99.00th=[ 169], 99.50th=[ 203], 99.90th=[ 414], 99.95th=[ 1200], | 99.99th=[ 1200] bw ( KiB/s): min= 7, max= 111, per=28.50%, avg=24.79, stdev=17.11, samples=467 iops : min= 1, max= 27, avg= 5.57, stdev= 4.30, samples=467 write: IOPS=5, BW=23.1KiB/s (23.6kB/s)(6296KiB/272837msec); 0 zone resets clat (msec): min=36, max=756, avg=138.33, stdev=70.04 lat (msec): min=36, max=756, avg=138.33, stdev=70.04 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 61], 10.00th=[ 70], 20.00th=[ 84], | 30.00th=[ 96], 40.00th=[ 108], 50.00th=[ 121], 60.00th=[ 136], | 70.00th=[ 159], 80.00th=[ 188], 90.00th=[ 230], 95.00th=[ 275], | 99.00th=[ 359], 99.50th=[ 422], 99.90th=[ 567], 99.95th=[ 760], | 99.99th=[ 760] bw ( KiB/s): min= 7, max= 55, per=25.11%, avg=22.85, stdev=10.61, samples=530 iops : min= 1, max= 13, avg= 5.07, stdev= 2.70, samples=530 lat (msec) : 10=4.36%, 20=15.43%, 50=20.38%, 100=22.92%, 250=33.17% lat (msec) : 500=3.58%, 750=0.10%, 1000=0.03%, 2000=0.03% cpu : usr=0.04%, sys=1.13%, ctx=5473, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144695: Mon Aug 31 18:49:54 2026 read: IOPS=5, BW=21.8KiB/s (22.3kB/s)(5940KiB/272974msec) clat (msec): min=5, max=1051, avg=37.41, stdev=44.53 lat (msec): min=5, max=1051, avg=37.42, stdev=44.53 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 21], 50.00th=[ 25], 60.00th=[ 31], | 70.00th=[ 39], 80.00th=[ 53], 90.00th=[ 86], 95.00th=[ 109], | 99.00th=[ 161], 99.50th=[ 211], 99.90th=[ 409], 99.95th=[ 1053], | 99.99th=[ 1053] bw ( KiB/s): min= 7, max= 95, per=29.00%, avg=25.23, stdev=16.38, samples=454 iops : min= 1, max= 23, avg= 5.67, stdev= 4.13, samples=454 write: IOPS=5, BW=23.3KiB/s (23.8kB/s)(6348KiB/272974msec); 0 zone resets clat (msec): min=29, max=756, avg=136.74, stdev=65.08 lat (msec): min=29, max=756, avg=136.74, stdev=65.08 clat percentiles (msec): | 1.00th=[ 49], 5.00th=[ 63], 10.00th=[ 72], 20.00th=[ 85], | 30.00th=[ 96], 40.00th=[ 109], 50.00th=[ 122], 60.00th=[ 138], | 70.00th=[ 155], 80.00th=[ 186], 90.00th=[ 224], 95.00th=[ 262], | 99.00th=[ 334], 99.50th=[ 388], 99.90th=[ 518], 99.95th=[ 760], | 99.99th=[ 760] bw ( KiB/s): min= 7, max= 56, per=25.33%, avg=23.05, stdev=10.16, samples=529 iops : min= 1, max= 14, avg= 5.12, stdev= 2.58, samples=529 lat (msec) : 10=4.26%, 20=15.10%, 50=19.40%, 100=23.44%, 250=34.51% lat (msec) : 500=3.19%, 750=0.03%, 1000=0.03%, 2000=0.03% cpu : usr=0.04%, sys=1.09%, ctx=5245, 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=144696: Mon Aug 31 18:49:54 2026 read: IOPS=5, BW=22.0KiB/s (22.6kB/s)(6028KiB/273614msec) clat (msec): min=4, max=583, avg=37.30, stdev=38.00 lat (msec): min=4, max=583, avg=37.30, stdev=38.00 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 18], 40.00th=[ 22], 50.00th=[ 26], 60.00th=[ 31], | 70.00th=[ 38], 80.00th=[ 53], 90.00th=[ 81], 95.00th=[ 107], | 99.00th=[ 169], 99.50th=[ 218], 99.90th=[ 422], 99.95th=[ 584], | 99.99th=[ 584] bw ( KiB/s): min= 7, max= 94, per=27.63%, avg=24.04, stdev=16.05, samples=482 iops : min= 1, max= 23, avg= 5.37, stdev= 4.06, samples=482 write: IOPS=5, BW=22.9KiB/s (23.4kB/s)(6260KiB/273614msec); 0 zone resets clat (msec): min=32, max=1266, avg=138.66, stdev=73.09 lat (msec): min=32, max=1267, avg=138.67, stdev=73.09 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 62], 10.00th=[ 72], 20.00th=[ 86], | 30.00th=[ 99], 40.00th=[ 108], 50.00th=[ 122], 60.00th=[ 138], | 70.00th=[ 157], 80.00th=[ 186], 90.00th=[ 228], 95.00th=[ 264], | 99.00th=[ 355], 99.50th=[ 435], 99.90th=[ 567], 99.95th=[ 1267], | 99.99th=[ 1267] bw ( KiB/s): min= 7, max= 63, per=24.90%, avg=22.65, stdev=10.90, samples=530 iops : min= 1, max= 15, avg= 5.02, stdev= 2.78, samples=530 lat (msec) : 10=3.74%, 20=14.55%, 50=21.26%, 100=23.01%, 250=33.82% lat (msec) : 500=3.45%, 750=0.13%, 2000=0.03% cpu : usr=0.04%, sys=1.10%, ctx=5294, 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=144697: Mon Aug 31 18:49:54 2026 read: IOPS=5, BW=22.4KiB/s (22.9kB/s)(6052KiB/270166msec) clat (msec): min=4, max=411, avg=35.19, stdev=35.44 lat (msec): min=4, max=411, avg=35.19, stdev=35.44 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 21], 50.00th=[ 24], 60.00th=[ 29], | 70.00th=[ 36], 80.00th=[ 48], 90.00th=[ 74], 95.00th=[ 101], | 99.00th=[ 190], 99.50th=[ 205], 99.90th=[ 409], 99.95th=[ 414], | 99.99th=[ 414] bw ( KiB/s): min= 7, max= 101, per=28.82%, avg=25.08, stdev=16.88, samples=466 iops : min= 1, max= 25, avg= 5.65, stdev= 4.27, samples=466 write: IOPS=5, BW=23.1KiB/s (23.6kB/s)(6236KiB/270166msec); 0 zone resets clat (msec): min=33, max=1360, avg=138.93, stdev=72.31 lat (msec): min=33, max=1360, avg=138.93, stdev=72.31 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 63], 10.00th=[ 73], 20.00th=[ 86], | 30.00th=[ 97], 40.00th=[ 109], 50.00th=[ 122], 60.00th=[ 140], | 70.00th=[ 157], 80.00th=[ 186], 90.00th=[ 226], 95.00th=[ 266], | 99.00th=[ 355], 99.50th=[ 384], 99.90th=[ 642], 99.95th=[ 1368], | 99.99th=[ 1368] bw ( KiB/s): min= 7, max= 56, per=25.03%, avg=22.77, stdev=10.55, samples=527 iops : min= 1, max= 14, avg= 5.06, stdev= 2.70, samples=527 lat (msec) : 10=3.97%, 20=15.46%, 50=21.58%, 100=22.43%, 250=33.24% lat (msec) : 500=3.26%, 750=0.03%, 2000=0.03% cpu : usr=0.04%, sys=1.11%, ctx=5273, 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=87.8KiB/s (89.9kB/s), 21.8KiB/s-22.4KiB/s (22.3kB/s-22.9kB/s), io=23.4MiB (24.6MB), run=270166-273614msec WRITE: bw=91.9KiB/s (94.1kB/s), 22.9KiB/s-23.3KiB/s (23.4kB/s-23.8kB/s), io=24.6MiB (25.7MB), run=270166-273614msec 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=144752: Mon Aug 31 18:50:34 2026 read: IOPS=13, BW=223KiB/s (228kB/s)(5920KiB/26545msec) clat (usec): min=33, max=287986, avg=38511.11, stdev=34654.67 lat (usec): min=33, max=287988, avg=38512.41, stdev=34654.74 clat percentiles (usec): | 1.00th=[ 39], 5.00th=[ 55], 10.00th=[ 61], 20.00th=[ 79], | 30.00th=[ 20579], 40.00th=[ 29754], 50.00th=[ 36963], 60.00th=[ 43254], | 70.00th=[ 50070], 80.00th=[ 60031], 90.00th=[ 73925], 95.00th=[ 90702], | 99.00th=[145753], 99.50th=[219153], 99.90th=[287310], 99.95th=[287310], | 99.99th=[287310] bw ( KiB/s): min= 94, max= 476, per=26.48%, avg=220.31, stdev=88.11, samples=51 iops : min= 5, max= 29, avg=13.06, stdev= 5.61, samples=51 write: IOPS=14, BW=240KiB/s (246kB/s)(6368KiB/26545msec); 0 zone resets clat (usec): min=1263, max=200444, avg=29822.63, stdev=32638.43 lat (usec): min=1265, max=200445, avg=29825.02, stdev=32638.77 clat percentiles (usec): | 1.00th=[ 1450], 5.00th=[ 1631], 10.00th=[ 2147], 20.00th=[ 4113], | 30.00th=[ 7373], 40.00th=[ 10552], 50.00th=[ 18482], 60.00th=[ 26608], | 70.00th=[ 36963], 80.00th=[ 52691], 90.00th=[ 78119], 95.00th=[ 93848], | 99.00th=[149947], 99.50th=[175113], 99.90th=[200279], 99.95th=[200279], | 99.99th=[200279] bw ( KiB/s): min= 63, max= 532, per=27.48%, avg=240.43, stdev=103.61, samples=51 iops : min= 3, max= 33, avg=14.35, stdev= 6.56, samples=51 lat (usec) : 50=1.95%, 100=8.72%, 250=0.78%, 500=0.39% lat (msec) : 2=5.21%, 4=4.95%, 10=10.16%, 20=9.24%, 50=33.33% lat (msec) : 100=21.09%, 250=4.04%, 500=0.13% cpu : usr=0.10%, sys=5.96%, ctx=1344, 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=144753: Mon Aug 31 18:50:34 2026 read: IOPS=12, BW=200KiB/s (204kB/s)(5744KiB/28781msec) clat (usec): min=34, max=241733, avg=40364.84, stdev=35164.27 lat (usec): min=34, max=241735, avg=40366.14, stdev=35164.27 clat percentiles (usec): | 1.00th=[ 41], 5.00th=[ 57], 10.00th=[ 62], 20.00th=[ 116], | 30.00th=[ 22676], 40.00th=[ 29492], 50.00th=[ 36963], 60.00th=[ 42730], | 70.00th=[ 50594], 80.00th=[ 64750], 90.00th=[ 80217], 95.00th=[ 98042], | 99.00th=[185598], 99.50th=[191890], 99.90th=[242222], 99.95th=[242222], | 99.99th=[242222] bw ( KiB/s): min= 21, max= 407, per=24.28%, avg=202.04, stdev=83.05, samples=55 iops : min= 1, max= 25, avg=11.91, stdev= 5.26, samples=55 write: IOPS=14, BW=227KiB/s (233kB/s)(6544KiB/28781msec); 0 zone resets clat (usec): min=1181, max=235935, avg=34140.04, stdev=39162.43 lat (usec): min=1183, max=235937, avg=34157.86, stdev=39189.36 clat percentiles (usec): | 1.00th=[ 1418], 5.00th=[ 1663], 10.00th=[ 2089], 20.00th=[ 4490], | 30.00th=[ 8356], 40.00th=[ 11338], 50.00th=[ 17957], 60.00th=[ 28181], | 70.00th=[ 40109], 80.00th=[ 61080], 90.00th=[ 92799], 95.00th=[110625], | 99.00th=[170918], 99.50th=[183501], 99.90th=[235930], 99.95th=[235930], | 99.99th=[235930] bw ( KiB/s): min= 43, max= 563, per=25.90%, avg=226.61, stdev=97.02, samples=56 iops : min= 2, max= 35, avg=13.46, stdev= 6.17, samples=56 lat (usec) : 50=0.91%, 100=8.33%, 250=0.13%, 500=0.26%, 750=0.13% lat (usec) : 1000=0.13% lat (msec) : 2=5.08%, 4=4.56%, 10=10.55%, 20=10.55%, 50=32.55% lat (msec) : 100=20.70%, 250=6.12% cpu : usr=0.10%, sys=5.72%, ctx=1397, 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=144754: Mon Aug 31 18:50:34 2026 read: IOPS=14, BW=227KiB/s (232kB/s)(6256KiB/27612msec) clat (usec): min=36, max=275005, avg=38190.17, stdev=33095.77 lat (usec): min=36, max=275006, avg=38191.44, stdev=33095.76 clat percentiles (usec): | 1.00th=[ 40], 5.00th=[ 55], 10.00th=[ 62], 20.00th=[ 955], | 30.00th=[ 22414], 40.00th=[ 29230], 50.00th=[ 36439], 60.00th=[ 42730], | 70.00th=[ 49546], 80.00th=[ 57934], 90.00th=[ 72877], 95.00th=[ 86508], | 99.00th=[147850], 99.50th=[263193], 99.90th=[274727], 99.95th=[274727], | 99.99th=[274727] bw ( KiB/s): min= 61, max= 566, per=27.33%, avg=227.35, stdev=94.28, samples=54 iops : min= 3, max= 35, avg=13.52, stdev= 6.02, samples=54 write: IOPS=13, BW=218KiB/s (224kB/s)(6032KiB/27612msec); 0 zone resets clat (usec): min=1404, max=217145, avg=33233.83, stdev=34651.00 lat (usec): min=1406, max=217146, avg=33255.39, stdev=34671.13 clat percentiles (usec): | 1.00th=[ 1500], 5.00th=[ 1696], 10.00th=[ 1942], 20.00th=[ 4817], | 30.00th=[ 8586], 40.00th=[ 14484], 50.00th=[ 22414], 60.00th=[ 30802], | 70.00th=[ 40109], 80.00th=[ 60556], 90.00th=[ 80217], 95.00th=[101188], | 99.00th=[168821], 99.50th=[187696], 99.90th=[217056], 99.95th=[217056], | 99.99th=[217056] bw ( KiB/s): min= 93, max= 384, per=24.93%, avg=218.15, stdev=84.79, samples=54 iops : min= 5, max= 24, avg=12.94, stdev= 5.31, samples=54 lat (usec) : 50=1.82%, 100=7.55%, 250=0.52%, 500=0.13%, 750=0.13% lat (usec) : 1000=0.13% lat (msec) : 2=5.21%, 4=3.65%, 10=7.81%, 20=9.64%, 50=36.46% lat (msec) : 100=23.18%, 250=3.52%, 500=0.26% cpu : usr=0.07%, sys=5.78%, ctx=1434, 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=144757: Mon Aug 31 18:50:34 2026 read: IOPS=13, BW=222KiB/s (227kB/s)(6032KiB/27196msec) clat (usec): min=37, max=227175, avg=36068.68, stdev=30062.05 lat (usec): min=37, max=227177, avg=36073.31, stdev=30064.32 clat percentiles (usec): | 1.00th=[ 39], 5.00th=[ 54], 10.00th=[ 62], 20.00th=[ 73], | 30.00th=[ 19530], 40.00th=[ 30278], 50.00th=[ 34866], 60.00th=[ 42730], | 70.00th=[ 50070], 80.00th=[ 59507], 90.00th=[ 71828], 95.00th=[ 83362], | 99.00th=[122160], 99.50th=[141558], 99.90th=[227541], 99.95th=[227541], | 99.99th=[227541] bw ( KiB/s): min= 31, max= 564, per=26.58%, avg=221.15, stdev=99.28, samples=53 iops : min= 1, max= 35, avg=13.13, stdev= 6.25, samples=53 write: IOPS=14, BW=230KiB/s (236kB/s)(6256KiB/27196msec); 0 zone resets clat (usec): min=1415, max=378530, avg=33953.55, stdev=40576.11 lat (usec): min=1417, max=378533, avg=33955.81, stdev=40576.11 clat percentiles (usec): | 1.00th=[ 1450], 5.00th=[ 1729], 10.00th=[ 2073], 20.00th=[ 3818], | 30.00th=[ 6063], 40.00th=[ 10290], 50.00th=[ 18744], 60.00th=[ 30540], | 70.00th=[ 42730], 80.00th=[ 63701], 90.00th=[ 87557], 95.00th=[104334], | 99.00th=[160433], 99.50th=[217056], 99.90th=[379585], 99.95th=[379585], | 99.99th=[379585] bw ( KiB/s): min= 88, max= 384, per=26.49%, avg=231.83, stdev=72.91, samples=53 iops : min= 5, max= 24, avg=13.79, stdev= 4.63, samples=53 lat (usec) : 50=1.95%, 100=9.64%, 250=0.39%, 750=0.26%, 1000=0.13% lat (msec) : 2=4.95%, 4=6.51%, 10=9.24%, 20=7.81%, 50=31.90% lat (msec) : 100=22.66%, 250=4.43%, 500=0.13% cpu : usr=0.10%, sys=5.85%, ctx=1338, 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=832KiB/s (852kB/s), 200KiB/s-227KiB/s (204kB/s-232kB/s), io=23.4MiB (24.5MB), run=26545-28781msec WRITE: bw=876KiB/s (897kB/s), 218KiB/s-240KiB/s (224kB/s-246kB/s), io=24.6MiB (25.8MB), run=26545-28781msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144755: Mon Aug 31 18:51:12 2026 read: IOPS=5, BW=89.7KiB/s (91.8kB/s)(5920KiB/66011msec) clat (msec): min=5, max=247, avg=38.27, stdev=40.33 lat (msec): min=5, max=247, avg=38.27, stdev=40.33 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 21], 50.00th=[ 24], 60.00th=[ 30], | 70.00th=[ 37], 80.00th=[ 50], 90.00th=[ 81], 95.00th=[ 123], | 99.00th=[ 224], 99.50th=[ 245], 99.90th=[ 249], 99.95th=[ 249], | 99.99th=[ 249] bw ( KiB/s): min= 31, max= 319, per=26.00%, avg=93.60, stdev=63.49, samples=123 iops : min= 1, max= 19, avg= 5.11, stdev= 4.02, samples=123 write: IOPS=6, BW=96.5KiB/s (98.8kB/s)(6368KiB/66011msec); 0 zone resets clat (msec): min=43, max=432, avg=129.46, stdev=61.04 lat (msec): min=43, max=432, avg=129.46, stdev=61.03 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 60], 10.00th=[ 67], 20.00th=[ 80], | 30.00th=[ 93], 40.00th=[ 105], 50.00th=[ 115], 60.00th=[ 131], | 70.00th=[ 144], 80.00th=[ 165], 90.00th=[ 207], 95.00th=[ 259], | 99.00th=[ 342], 99.50th=[ 380], 99.90th=[ 435], 99.95th=[ 435], | 99.99th=[ 435] bw ( KiB/s): min= 31, max= 222, per=25.68%, avg=97.34, stdev=44.57, samples=128 iops : min= 1, max= 13, avg= 5.33, stdev= 2.88, samples=128 lat (msec) : 10=3.26%, 20=15.76%, 50=20.18%, 100=24.61%, 250=33.33% lat (msec) : 500=2.86% cpu : usr=0.05%, sys=1.27%, ctx=1305, 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=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=144756: Mon Aug 31 18:51:12 2026 read: IOPS=5, BW=86.4KiB/s (88.5kB/s)(5744KiB/66481msec) clat (msec): min=5, max=388, avg=37.32, stdev=41.28 lat (msec): min=5, max=388, avg=37.33, stdev=41.28 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 21], 50.00th=[ 24], 60.00th=[ 28], | 70.00th=[ 35], 80.00th=[ 50], 90.00th=[ 78], 95.00th=[ 114], | 99.00th=[ 234], 99.50th=[ 251], 99.90th=[ 388], 99.95th=[ 388], | 99.99th=[ 388] bw ( KiB/s): min= 23, max= 445, per=28.09%, avg=101.14, stdev=69.63, samples=111 iops : min= 1, max= 27, avg= 5.59, stdev= 4.38, samples=111 write: IOPS=6, BW=98.4KiB/s (101kB/s)(6544KiB/66481msec); 0 zone resets clat (msec): min=32, max=448, avg=129.40, stdev=65.44 lat (msec): min=32, max=448, avg=129.41, stdev=65.44 clat percentiles (msec): | 1.00th=[ 42], 5.00th=[ 58], 10.00th=[ 64], 20.00th=[ 79], | 30.00th=[ 91], 40.00th=[ 101], 50.00th=[ 113], 60.00th=[ 129], | 70.00th=[ 146], 80.00th=[ 178], 90.00th=[ 207], 95.00th=[ 249], | 99.00th=[ 393], 99.50th=[ 405], 99.90th=[ 451], 99.95th=[ 451], | 99.99th=[ 451] bw ( KiB/s): min= 31, max= 251, per=26.56%, avg=100.68, stdev=44.04, samples=127 iops : min= 1, max= 15, avg= 5.54, stdev= 2.86, samples=127 lat (msec) : 10=2.86%, 20=15.49%, 50=20.57%, 100=26.17%, 250=32.03% lat (msec) : 500=2.86% cpu : usr=0.04%, sys=1.23%, ctx=1253, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144758: Mon Aug 31 18:51:12 2026 read: IOPS=6, BW=96.2KiB/s (98.5kB/s)(6256KiB/65053msec) clat (msec): min=5, max=451, avg=37.28, stdev=43.61 lat (msec): min=5, max=451, avg=37.29, stdev=43.61 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 24], 60.00th=[ 29], | 70.00th=[ 39], 80.00th=[ 47], 90.00th=[ 74], 95.00th=[ 111], | 99.00th=[ 234], 99.50th=[ 393], 99.90th=[ 451], 99.95th=[ 451], | 99.99th=[ 451] bw ( KiB/s): min= 30, max= 320, per=28.88%, avg=103.96, stdev=72.07, samples=119 iops : min= 1, max= 20, avg= 5.75, stdev= 4.56, samples=119 write: IOPS=5, BW=92.7KiB/s (94.9kB/s)(6032KiB/65053msec); 0 zone resets clat (msec): min=42, max=447, avg=133.14, stdev=63.71 lat (msec): min=42, max=447, avg=133.14, stdev=63.71 clat percentiles (msec): | 1.00th=[ 51], 5.00th=[ 64], 10.00th=[ 71], 20.00th=[ 84], | 30.00th=[ 94], 40.00th=[ 105], 50.00th=[ 116], 60.00th=[ 130], | 70.00th=[ 153], 80.00th=[ 182], 90.00th=[ 213], 95.00th=[ 257], | 99.00th=[ 355], 99.50th=[ 447], 99.90th=[ 447], 99.95th=[ 447], | 99.99th=[ 447] bw ( KiB/s): min= 31, max= 222, per=24.46%, avg=92.70, stdev=41.92, samples=127 iops : min= 1, max= 13, avg= 5.04, stdev= 2.72, samples=127 lat (msec) : 10=3.39%, 20=15.89%, 50=22.66%, 100=23.44%, 250=31.38% lat (msec) : 500=3.26% cpu : usr=0.05%, sys=1.27%, ctx=1344, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144759: Mon Aug 31 18:51:12 2026 read: IOPS=5, BW=92.1KiB/s (94.3kB/s)(6032KiB/65518msec) clat (msec): min=5, max=248, avg=35.48, stdev=34.29 lat (msec): min=5, max=248, avg=35.48, stdev=34.29 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 16], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 24], 60.00th=[ 29], | 70.00th=[ 36], 80.00th=[ 47], 90.00th=[ 77], 95.00th=[ 111], | 99.00th=[ 190], 99.50th=[ 220], 99.90th=[ 249], 99.95th=[ 249], | 99.99th=[ 249] bw ( KiB/s): min= 31, max= 288, per=28.75%, avg=103.52, stdev=65.16, samples=114 iops : min= 1, max= 18, avg= 5.72, stdev= 4.20, samples=114 write: IOPS=5, BW=95.5KiB/s (97.8kB/s)(6256KiB/65518msec); 0 zone resets clat (msec): min=34, max=529, avg=132.49, stdev=68.75 lat (msec): min=34, max=529, avg=132.49, stdev=68.75 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 58], 10.00th=[ 67], 20.00th=[ 81], | 30.00th=[ 90], 40.00th=[ 103], 50.00th=[ 116], 60.00th=[ 129], | 70.00th=[ 150], 80.00th=[ 171], 90.00th=[ 222], 95.00th=[ 279], | 99.00th=[ 393], 99.50th=[ 443], 99.90th=[ 531], 99.95th=[ 531], | 99.99th=[ 531] bw ( KiB/s): min= 23, max= 191, per=25.54%, avg=96.80, stdev=42.13, samples=127 iops : min= 1, max= 11, avg= 5.30, stdev= 2.76, samples=127 lat (msec) : 10=3.39%, 20=16.54%, 50=21.35%, 100=24.48%, 250=30.60% lat (msec) : 500=3.52%, 750=0.13% cpu : usr=0.04%, sys=1.32%, ctx=1435, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=360KiB/s (369kB/s), 86.4KiB/s-96.2KiB/s (88.5kB/s-98.5kB/s), io=23.4MiB (24.5MB), run=65053-66481msec WRITE: bw=379KiB/s (388kB/s), 92.7KiB/s-98.4KiB/s (94.9kB/s-101kB/s), io=24.6MiB (25.8MB), run=65053-66481msec 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=144781: Mon Aug 31 18:51:26 2026 read: IOPS=2, BW=2100KiB/s (2151kB/s)(7168KiB/3413msec) clat (usec): min=565, max=240264, avg=145057.55, stdev=100742.19 lat (usec): min=566, max=240265, avg=145059.00, stdev=100742.35 clat percentiles (usec): | 1.00th=[ 570], 5.00th=[ 570], 10.00th=[ 570], 20.00th=[ 2245], | 30.00th=[162530], 40.00th=[162530], 50.00th=[193987], 60.00th=[206570], | 70.00th=[206570], 80.00th=[208667], 90.00th=[240124], 95.00th=[240124], | 99.00th=[240124], 99.50th=[240124], 99.90th=[240124], 99.95th=[240124], | 99.99th=[240124] bw ( KiB/s): min= 2023, max= 4055, per=62.39%, avg=3143.00, stdev=1031.84, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=1, BW=1500KiB/s (1536kB/s)(5120KiB/3413msec); 0 zone resets clat (msec): min=172, max=713, avg=416.86, stdev=248.33 lat (msec): min=172, max=714, avg=417.39, stdev=248.63 clat percentiles (msec): | 1.00th=[ 174], 5.00th=[ 174], 10.00th=[ 174], 20.00th=[ 174], | 30.00th=[ 215], 40.00th=[ 215], 50.00th=[ 338], 60.00th=[ 338], | 70.00th=[ 642], 80.00th=[ 642], 90.00th=[ 718], 95.00th=[ 718], | 99.00th=[ 718], 99.50th=[ 718], 99.90th=[ 718], 99.95th=[ 718], | 99.99th=[ 718] bw ( KiB/s): min= 2000, max= 2043, per=28.66%, avg=2021.25, stdev=17.63, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 lat (usec) : 750=8.33% lat (msec) : 4=8.33%, 250=58.33%, 500=8.33%, 750=16.67% cpu : usr=0.00%, sys=10.55%, ctx=144, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144782: Mon Aug 31 18:51:26 2026 read: IOPS=0, BW=504KiB/s (516kB/s)(2048KiB/4065msec) clat (msec): min=240, max=292, avg=266.57, stdev=36.67 lat (msec): min=240, max=292, avg=266.57, stdev=36.67 clat percentiles (msec): | 1.00th=[ 241], 5.00th=[ 241], 10.00th=[ 241], 20.00th=[ 241], | 30.00th=[ 241], 40.00th=[ 241], 50.00th=[ 241], 60.00th=[ 292], | 70.00th=[ 292], 80.00th=[ 292], 90.00th=[ 292], 95.00th=[ 292], | 99.00th=[ 292], 99.50th=[ 292], 99.90th=[ 292], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 1703, max= 2000, per=36.75%, avg=1851.50, stdev=210.01, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2519KiB/s (2580kB/s)(10.0MiB/4065msec); 0 zone resets clat (msec): min=123, max=926, avg=322.51, stdev=250.96 lat (msec): min=123, max=927, avg=322.59, stdev=250.97 clat percentiles (msec): | 1.00th=[ 124], 5.00th=[ 124], 10.00th=[ 124], 20.00th=[ 128], | 30.00th=[ 159], 40.00th=[ 180], 50.00th=[ 203], 60.00th=[ 245], | 70.00th=[ 300], 80.00th=[ 443], 90.00th=[ 523], 95.00th=[ 927], | 99.00th=[ 927], 99.50th=[ 927], 99.90th=[ 927], 99.95th=[ 927], | 99.99th=[ 927] bw ( KiB/s): min= 2000, max= 4079, per=40.20%, avg=2835.20, stdev=1124.54, samples=5 iops : min= 1, max= 3, avg= 1.80, stdev= 1.10, samples=5 lat (msec) : 250=58.33%, 500=25.00%, 750=8.33%, 1000=8.33% cpu : usr=0.00%, sys=14.20%, ctx=196, 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=144783: Mon Aug 31 18:51:26 2026 read: IOPS=2, BW=2116KiB/s (2167kB/s)(6144KiB/2903msec) clat (usec): min=354, max=325232, avg=99153.85, stdev=153853.60 lat (usec): min=354, max=325234, avg=99154.93, stdev=153853.83 clat percentiles (usec): | 1.00th=[ 355], 5.00th=[ 355], 10.00th=[ 355], 20.00th=[ 545], | 30.00th=[ 545], 40.00th=[ 562], 50.00th=[ 562], 60.00th=[ 717], | 70.00th=[267387], 80.00th=[267387], 90.00th=[325059], 95.00th=[325059], | 99.00th=[325059], 99.50th=[325059], 99.90th=[325059], 99.95th=[325059], | 99.99th=[325059] bw ( KiB/s): min= 2019, max= 4087, per=67.23%, avg=3387.00, stdev=1184.83, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=2, BW=2116KiB/s (2167kB/s)(6144KiB/2903msec); 0 zone resets clat (msec): min=121, max=538, avg=339.85, stdev=175.53 lat (msec): min=121, max=538, avg=340.00, stdev=175.65 clat percentiles (msec): | 1.00th=[ 123], 5.00th=[ 123], 10.00th=[ 123], 20.00th=[ 178], | 30.00th=[ 178], 40.00th=[ 264], 50.00th=[ 264], 60.00th=[ 447], | 70.00th=[ 493], 80.00th=[ 493], 90.00th=[ 542], 95.00th=[ 542], | 99.00th=[ 542], 99.50th=[ 542], 99.90th=[ 542], 99.95th=[ 542], | 99.99th=[ 542] bw ( KiB/s): min= 2043, max= 4055, per=47.95%, avg=3381.67, stdev=1159.33, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 lat (usec) : 500=8.33%, 750=25.00% lat (msec) : 250=16.67%, 500=41.67%, 750=8.33% cpu : usr=0.00%, sys=15.71%, ctx=221, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144784: Mon Aug 31 18:51:26 2026 read: IOPS=1, BW=1588KiB/s (1626kB/s)(5120KiB/3225msec) clat (usec): min=410, max=263640, avg=130270.34, stdev=122217.65 lat (usec): min=410, max=263641, avg=130271.09, stdev=122217.96 clat percentiles (usec): | 1.00th=[ 412], 5.00th=[ 412], 10.00th=[ 412], 20.00th=[ 412], | 30.00th=[ 461], 40.00th=[ 461], 50.00th=[181404], 60.00th=[181404], | 70.00th=[204473], 80.00th=[204473], 90.00th=[263193], 95.00th=[263193], | 99.00th=[263193], 99.50th=[263193], 99.90th=[263193], 99.95th=[263193], | 99.99th=[263193] bw ( KiB/s): min= 4047, max= 4055, per=80.41%, avg=4051.00, stdev= 5.66, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2223KiB/s (2276kB/s)(7168KiB/3225msec); 0 zone resets clat (msec): min=144, max=882, avg=357.72, stdev=251.75 lat (msec): min=144, max=883, avg=358.12, stdev=251.72 clat percentiles (msec): | 1.00th=[ 144], 5.00th=[ 144], 10.00th=[ 144], 20.00th=[ 163], | 30.00th=[ 249], 40.00th=[ 249], 50.00th=[ 279], 60.00th=[ 388], | 70.00th=[ 388], 80.00th=[ 397], 90.00th=[ 885], 95.00th=[ 885], | 99.00th=[ 885], 99.50th=[ 885], 99.90th=[ 885], 99.95th=[ 885], | 99.99th=[ 885] bw ( KiB/s): min= 2043, max= 4047, per=47.97%, avg=3383.00, stdev=934.64, samples=4 iops : min= 1, max= 3, avg= 2.50, stdev= 1.00, samples=4 lat (usec) : 500=16.67% lat (msec) : 250=41.67%, 500=33.33%, 1000=8.33% cpu : usr=0.06%, sys=13.18%, ctx=182, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=5038KiB/s (5159kB/s), 504KiB/s-2116KiB/s (516kB/s-2167kB/s), io=20.0MiB (20.0MB), run=2903-4065msec WRITE: bw=7053KiB/s (7223kB/s), 1500KiB/s-2519KiB/s (1536kB/s-2580kB/s), io=28.0MiB (29.4MB), run=2903-4065msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144777: Mon Aug 31 18:51:26 2026 read: IOPS=2, BW=2265KiB/s (2319kB/s)(7168KiB/3165msec) clat (msec): min=60, max=206, avg=127.03, stdev=58.79 lat (msec): min=60, max=206, avg=127.04, stdev=58.80 clat percentiles (msec): | 1.00th=[ 61], 5.00th=[ 61], 10.00th=[ 61], 20.00th=[ 68], | 30.00th=[ 102], 40.00th=[ 102], 50.00th=[ 117], 60.00th=[ 136], | 70.00th=[ 136], 80.00th=[ 203], 90.00th=[ 207], 95.00th=[ 207], | 99.00th=[ 207], 99.50th=[ 207], 99.90th=[ 207], 99.95th=[ 207], | 99.99th=[ 207] bw ( KiB/s): min= 2031, max= 4585, per=70.15%, avg=3530.67, stdev=1333.97, samples=3 iops : min= 1, max= 4, avg= 2.67, stdev= 1.53, samples=3 write: IOPS=1, BW=1618KiB/s (1657kB/s)(5120KiB/3165msec); 0 zone resets clat (msec): min=310, max=610, avg=441.27, stdev=130.67 lat (msec): min=310, max=610, avg=441.39, stdev=130.69 clat percentiles (msec): | 1.00th=[ 313], 5.00th=[ 313], 10.00th=[ 313], 20.00th=[ 313], | 30.00th=[ 317], 40.00th=[ 317], 50.00th=[ 443], 60.00th=[ 443], | 70.00th=[ 527], 80.00th=[ 527], 90.00th=[ 609], 95.00th=[ 609], | 99.00th=[ 609], 99.50th=[ 609], 99.90th=[ 609], 99.95th=[ 609], | 99.99th=[ 609] bw ( KiB/s): min= 1528, max= 2043, per=27.11%, avg=1910.25, stdev=254.88, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 lat (msec) : 100=16.67%, 250=41.67%, 500=25.00%, 750=16.67% cpu : usr=0.00%, sys=4.74%, ctx=61, 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=144778: Mon Aug 31 18:51:26 2026 read: IOPS=0, BW=503KiB/s (515kB/s)(2048KiB/4069msec) clat (msec): min=115, max=439, avg=277.61, stdev=229.43 lat (msec): min=115, max=439, avg=277.62, stdev=229.43 clat percentiles (msec): | 1.00th=[ 116], 5.00th=[ 116], 10.00th=[ 116], 20.00th=[ 116], | 30.00th=[ 116], 40.00th=[ 116], 50.00th=[ 116], 60.00th=[ 439], | 70.00th=[ 439], 80.00th=[ 439], 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= 1456, max= 2031, per=34.64%, avg=1743.50, stdev=406.59, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2517KiB/s (2577kB/s)(10.0MiB/4069msec); 0 zone resets clat (msec): min=148, max=738, avg=347.96, stdev=205.00 lat (msec): min=148, max=738, avg=348.17, stdev=204.94 clat percentiles (msec): | 1.00th=[ 148], 5.00th=[ 148], 10.00th=[ 148], 20.00th=[ 155], | 30.00th=[ 211], 40.00th=[ 236], 50.00th=[ 264], 60.00th=[ 279], | 70.00th=[ 334], 80.00th=[ 468], 90.00th=[ 651], 95.00th=[ 743], | 99.00th=[ 743], 99.50th=[ 743], 99.90th=[ 743], 99.95th=[ 743], | 99.99th=[ 743] bw ( KiB/s): min= 1456, max= 5976, per=54.98%, avg=3873.75, stdev=1854.80, samples=4 iops : min= 1, max= 5, avg= 3.00, stdev= 1.63, samples=4 lat (msec) : 250=41.67%, 500=41.67%, 750=16.67% cpu : usr=0.00%, sys=3.59%, ctx=60, 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=144779: Mon Aug 31 18:51:26 2026 read: IOPS=1, BW=1519KiB/s (1556kB/s)(6144KiB/4044msec) clat (msec): min=82, max=625, avg=301.34, stdev=235.18 lat (msec): min=82, max=625, avg=301.35, stdev=235.18 clat percentiles (msec): | 1.00th=[ 83], 5.00th=[ 83], 10.00th=[ 83], 20.00th=[ 86], | 30.00th=[ 86], 40.00th=[ 123], 50.00th=[ 123], 60.00th=[ 409], | 70.00th=[ 481], 80.00th=[ 481], 90.00th=[ 625], 95.00th=[ 625], | 99.00th=[ 625], 99.50th=[ 625], 99.90th=[ 625], 99.95th=[ 625], | 99.99th=[ 625] bw ( KiB/s): min= 1992, max= 3813, per=49.11%, avg=2471.75, stdev=894.47, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1519KiB/s (1556kB/s)(6144KiB/4044msec); 0 zone resets clat (msec): min=223, max=503, avg=334.56, stdev=95.68 lat (msec): min=223, max=503, avg=334.66, stdev=95.69 clat percentiles (msec): | 1.00th=[ 224], 5.00th=[ 224], 10.00th=[ 224], 20.00th=[ 279], | 30.00th=[ 279], 40.00th=[ 300], 50.00th=[ 300], 60.00th=[ 347], | 70.00th=[ 359], 80.00th=[ 359], 90.00th=[ 502], 95.00th=[ 502], | 99.00th=[ 502], 99.50th=[ 502], 99.90th=[ 502], 99.95th=[ 502], | 99.99th=[ 502] bw ( KiB/s): min= 1440, max= 2043, per=26.97%, avg=1900.40, stdev=258.64, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 100=16.67%, 250=16.67%, 500=50.00%, 750=16.67% cpu : usr=0.02%, sys=3.69%, ctx=75, 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=144780: Mon Aug 31 18:51:26 2026 read: IOPS=1, BW=1348KiB/s (1380kB/s)(5120KiB/3799msec) clat (msec): min=54, max=302, avg=178.40, stdev=91.60 lat (msec): min=54, max=302, avg=178.40, stdev=91.60 clat percentiles (msec): | 1.00th=[ 55], 5.00th=[ 55], 10.00th=[ 55], 20.00th=[ 55], | 30.00th=[ 136], 40.00th=[ 136], 50.00th=[ 199], 60.00th=[ 199], | 70.00th=[ 203], 80.00th=[ 203], 90.00th=[ 305], 95.00th=[ 305], | 99.00th=[ 305], 99.50th=[ 305], 99.90th=[ 305], 99.95th=[ 305], | 99.99th=[ 305] bw ( KiB/s): min= 1906, max= 6095, per=79.49%, avg=4000.50, stdev=2962.07, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=1, BW=1887KiB/s (1932kB/s)(7168KiB/3799msec); 0 zone resets clat (msec): min=187, max=531, avg=368.59, stdev=142.01 lat (msec): min=187, max=531, avg=368.67, stdev=141.98 clat percentiles (msec): | 1.00th=[ 188], 5.00th=[ 188], 10.00th=[ 188], 20.00th=[ 230], | 30.00th=[ 253], 40.00th=[ 253], 50.00th=[ 414], 60.00th=[ 468], | 70.00th=[ 468], 80.00th=[ 498], 90.00th=[ 531], 95.00th=[ 531], | 99.00th=[ 531], 99.50th=[ 531], 99.90th=[ 531], 99.95th=[ 531], | 99.99th=[ 531] bw ( KiB/s): min= 1514, max= 5976, per=38.49%, avg=2712.00, stdev=1838.04, samples=5 iops : min= 1, max= 5, avg= 1.80, stdev= 1.79, samples=5 lat (msec) : 100=8.33%, 250=41.67%, 500=41.67%, 750=8.33% cpu : usr=0.03%, sys=6.03%, ctx=174, 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=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=5033KiB/s (5154kB/s), 503KiB/s-2265KiB/s (515kB/s-2319kB/s), io=20.0MiB (20.0MB), run=3165-4069msec WRITE: bw=7046KiB/s (7216kB/s), 1519KiB/s-2517KiB/s (1556kB/s-2577kB/s), io=28.0MiB (29.4MB), run=3165-4069msec 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=144795: Mon Aug 31 18:51:41 2026 read: IOPS=1, BW=5285KiB/s (5412kB/s)(12.0MiB/2325msec) clat (msec): min=620, max=883, avg=772.19, stdev=135.81 lat (msec): min=620, max=883, avg=772.19, stdev=135.81 clat percentiles (msec): | 1.00th=[ 625], 5.00th=[ 625], 10.00th=[ 625], 20.00th=[ 625], | 30.00th=[ 625], 40.00th=[ 810], 50.00th=[ 810], 60.00th=[ 810], | 70.00th=[ 885], 80.00th=[ 885], 90.00th=[ 885], 95.00th=[ 885], | 99.00th=[ 885], 99.50th=[ 885], 99.90th=[ 885], 99.95th=[ 885], | 99.99th=[ 885] bw ( KiB/s): min= 8110, max= 8192, per=100.00%, avg=8151.00, stdev=57.98, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 750=33.33%, 1000=66.67% cpu : usr=0.00%, sys=11.27%, ctx=239, majf=0, minf=7 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144796: Mon Aug 31 18:51:41 2026 read: IOPS=0, BW=1590KiB/s (1628kB/s)(4096KiB/2576msec) clat (nsec): min=798065k, max=798065k, avg=798065139.00, stdev= 0.00 lat (nsec): min=798068k, max=798068k, avg=798067677.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 802], 5.00th=[ 802], 10.00th=[ 802], 20.00th=[ 802], | 30.00th=[ 802], 40.00th=[ 802], 50.00th=[ 802], 60.00th=[ 802], | 70.00th=[ 802], 80.00th=[ 802], 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= 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=3180KiB/s (3256kB/s)(8192KiB/2576msec); 0 zone resets clat (msec): min=799, max=972, avg=885.75, stdev=122.52 lat (msec): min=801, max=972, avg=887.13, stdev=121.21 clat percentiles (msec): | 1.00th=[ 802], 5.00th=[ 802], 10.00th=[ 802], 20.00th=[ 802], | 30.00th=[ 802], 40.00th=[ 802], 50.00th=[ 802], 60.00th=[ 969], | 70.00th=[ 969], 80.00th=[ 969], 90.00th=[ 969], 95.00th=[ 969], | 99.00th=[ 969], 99.50th=[ 969], 99.90th=[ 969], 99.95th=[ 969], | 99.99th=[ 969] bw ( KiB/s): min= 8192, max= 8192, per=68.35%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 1000=100.00% cpu : usr=0.00%, sys=3.46%, ctx=70, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144797: Mon Aug 31 18:51:41 2026 write: IOPS=1, BW=4495KiB/s (4602kB/s)(12.0MiB/2734msec); 0 zone resets clat (msec): min=736, max=1252, avg=910.38, stdev=296.37 lat (msec): min=737, max=1253, avg=910.95, stdev=296.33 clat percentiles (msec): | 1.00th=[ 735], 5.00th=[ 735], 10.00th=[ 735], 20.00th=[ 735], | 30.00th=[ 735], 40.00th=[ 743], 50.00th=[ 743], 60.00th=[ 743], | 70.00th=[ 1250], 80.00th=[ 1250], 90.00th=[ 1250], 95.00th=[ 1250], | 99.00th=[ 1250], 99.50th=[ 1250], 99.90th=[ 1250], 99.95th=[ 1250], | 99.99th=[ 1250] bw ( KiB/s): min= 8159, max= 8192, per=68.21%, avg=8175.50, stdev=23.33, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 750=66.67%, 2000=33.33% cpu : usr=0.26%, sys=5.74%, ctx=91, majf=0, minf=7 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144798: Mon Aug 31 18:51:41 2026 write: IOPS=1, BW=4808KiB/s (4923kB/s)(12.0MiB/2556msec); 0 zone resets clat (msec): min=360, max=1218, avg=850.22, stdev=441.92 lat (msec): min=363, max=1219, avg=851.80, stdev=440.82 clat percentiles (msec): | 1.00th=[ 359], 5.00th=[ 359], 10.00th=[ 359], 20.00th=[ 359], | 30.00th=[ 359], 40.00th=[ 969], 50.00th=[ 969], 60.00th=[ 969], | 70.00th=[ 1217], 80.00th=[ 1217], 90.00th=[ 1217], 95.00th=[ 1217], | 99.00th=[ 1217], 99.50th=[ 1217], 99.90th=[ 1217], 99.95th=[ 1217], | 99.99th=[ 1217] bw ( KiB/s): min= 8159, max= 8159, per=68.08%, avg=8159.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=3.56%, ctx=80, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=6360KiB/s (6513kB/s), 1590KiB/s-5285KiB/s (1628kB/s-5412kB/s), io=16.0MiB (16.8MB), run=2325-2576msec WRITE: bw=11.7MiB/s (12.3MB/s), 3180KiB/s-4808KiB/s (3256kB/s-4923kB/s), io=32.0MiB (33.6MB), run=2556-2734msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144790: Mon Aug 31 18:51:42 2026 read: IOPS=1, BW=6257KiB/s (6407kB/s)(12.0MiB/1964msec) clat (msec): min=524, max=849, avg=647.78, stdev=176.45 lat (msec): min=524, max=849, avg=647.79, stdev=176.45 clat percentiles (msec): | 1.00th=[ 527], 5.00th=[ 527], 10.00th=[ 527], 20.00th=[ 527], | 30.00th=[ 527], 40.00th=[ 567], 50.00th=[ 567], 60.00th=[ 567], | 70.00th=[ 852], 80.00th=[ 852], 90.00th=[ 852], 95.00th=[ 852], | 99.00th=[ 852], 99.50th=[ 852], 99.90th=[ 852], 99.95th=[ 852], | 99.99th=[ 852] bw ( KiB/s): min= 8110, max= 8192, per=97.71%, avg=8151.00, stdev=57.98, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 750=66.67%, 1000=33.33% cpu : usr=0.00%, sys=4.99%, ctx=49, 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=144791: Mon Aug 31 18:51:42 2026 read: IOPS=0, BW=2498KiB/s (2558kB/s)(4096KiB/1640msec) clat (nsec): min=256010k, max=256010k, avg=256009609.00, stdev= 0.00 lat (nsec): min=256013k, max=256013k, avg=256012553.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 257], 5.00th=[ 257], 10.00th=[ 257], 20.00th=[ 257], | 30.00th=[ 257], 40.00th=[ 257], 50.00th=[ 257], 60.00th=[ 257], | 70.00th=[ 257], 80.00th=[ 257], 90.00th=[ 257], 95.00th=[ 257], | 99.00th=[ 257], 99.50th=[ 257], 99.90th=[ 257], 99.95th=[ 257], | 99.99th=[ 257] bw ( KiB/s): min= 5979, max= 5979, per=71.67%, avg=5979.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=1, BW=4995KiB/s (5115kB/s)(8192KiB/1640msec); 0 zone resets clat (msec): min=345, max=866, avg=605.75, stdev=368.24 lat (msec): min=345, max=868, avg=607.23, stdev=369.78 clat percentiles (msec): | 1.00th=[ 347], 5.00th=[ 347], 10.00th=[ 347], 20.00th=[ 347], | 30.00th=[ 347], 40.00th=[ 347], 50.00th=[ 347], 60.00th=[ 869], | 70.00th=[ 869], 80.00th=[ 869], 90.00th=[ 869], 95.00th=[ 869], | 99.00th=[ 869], 99.50th=[ 869], 99.90th=[ 869], 99.95th=[ 869], | 99.99th=[ 869] lat (msec) : 500=66.67%, 1000=33.33% cpu : usr=0.12%, sys=7.50%, ctx=58, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144792: Mon Aug 31 18:51:42 2026 write: IOPS=0, BW=3361KiB/s (3442kB/s)(12.0MiB/3656msec); 0 zone resets clat (msec): min=249, max=2610, avg=1175.46, stdev=1260.14 lat (msec): min=249, max=2611, avg=1176.95, stdev=1260.35 clat percentiles (msec): | 1.00th=[ 249], 5.00th=[ 249], 10.00th=[ 249], 20.00th=[ 249], | 30.00th=[ 249], 40.00th=[ 667], 50.00th=[ 667], 60.00th=[ 667], | 70.00th=[ 2601], 80.00th=[ 2601], 90.00th=[ 2601], 95.00th=[ 2601], | 99.00th=[ 2601], 99.50th=[ 2601], 99.90th=[ 2601], 99.95th=[ 2601], | 99.99th=[ 2601] bw ( KiB/s): min= 8192, max= 8192, per=91.41%, avg=8192.00, stdev= 0.00, samples=2 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=2 lat (msec) : 250=33.33%, 750=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=3.17%, 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=144794: Mon Aug 31 18:51:42 2026 write: IOPS=1, BW=5723KiB/s (5861kB/s)(12.0MiB/2147msec); 0 zone resets clat (msec): min=223, max=1275, avg=680.71, stdev=539.67 lat (msec): min=223, max=1276, avg=681.15, stdev=539.68 clat percentiles (msec): | 1.00th=[ 224], 5.00th=[ 224], 10.00th=[ 224], 20.00th=[ 224], | 30.00th=[ 224], 40.00th=[ 542], 50.00th=[ 542], 60.00th=[ 542], | 70.00th=[ 1284], 80.00th=[ 1284], 90.00th=[ 1284], 95.00th=[ 1284], | 99.00th=[ 1284], 99.50th=[ 1284], 99.90th=[ 1284], 99.95th=[ 1284], | 99.99th=[ 1284] bw ( KiB/s): min=16384, max=16384, per=100.00%, avg=16384.00, stdev= 0.00, samples=1 iops : min= 4, max= 4, avg= 4.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.00%, sys=5.13%, 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=8342KiB/s (8542kB/s), 2498KiB/s-6257KiB/s (2558kB/s-6407kB/s), io=16.0MiB (16.8MB), run=1640-1964msec WRITE: bw=8963KiB/s (9178kB/s), 3361KiB/s-5723KiB/s (3442kB/s-5861kB/s), io=32.0MiB (33.6MB), run=1640-3656msec