== sanity test 398b: DIO and buffer IO race ============== 04:18:06 (1784189886) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 7.12563 s, 7.1 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=144576: Thu Jul 16 04:20:31 2026 read: IOPS=12, BW=50.2KiB/s (51.4kB/s)(5992KiB/119316msec) clat (usec): min=35, max=384827, avg=39008.54, stdev=29682.97 lat (usec): min=36, max=384828, avg=39012.73, stdev=29681.93 clat percentiles (usec): | 1.00th=[ 50], 5.00th=[ 64], 10.00th=[ 2442], 20.00th=[ 18482], | 30.00th=[ 23725], 40.00th=[ 28443], 50.00th=[ 33424], 60.00th=[ 39584], | 70.00th=[ 46924], 80.00th=[ 57934], 90.00th=[ 73925], 95.00th=[ 87557], | 99.00th=[124257], 99.50th=[160433], 99.90th=[358613], 99.95th=[383779], | 99.99th=[383779] bw ( KiB/s): min= 7, max= 133, per=25.41%, avg=49.55, stdev=19.44, samples=235 iops : min= 1, max= 33, avg=11.74, stdev= 4.92, samples=235 write: IOPS=13, BW=52.8KiB/s (54.0kB/s)(6296KiB/119316msec); 0 zone resets clat (usec): min=1024, max=334630, avg=38575.84, stdev=40680.39 lat (usec): min=1025, max=334632, avg=38578.93, stdev=40681.52 clat percentiles (usec): | 1.00th=[ 1270], 5.00th=[ 1467], 10.00th=[ 2376], 20.00th=[ 5211], | 30.00th=[ 9372], 40.00th=[ 17957], 50.00th=[ 27395], 60.00th=[ 38011], | 70.00th=[ 49546], 80.00th=[ 64750], 90.00th=[ 89654], 95.00th=[114820], | 99.00th=[170918], 99.50th=[240124], 99.90th=[308282], 99.95th=[333448], | 99.99th=[333448] bw ( KiB/s): min= 7, max= 127, per=25.53%, avg=52.08, stdev=21.66, samples=235 iops : min= 1, max= 31, avg=12.38, stdev= 5.45, samples=235 lat (usec) : 50=0.55%, 100=3.65%, 250=0.46%, 500=0.10%, 750=0.07% lat (msec) : 2=4.13%, 4=4.10%, 10=8.33%, 20=10.81%, 50=39.75% lat (msec) : 100=22.69%, 250=5.11%, 500=0.26% cpu : usr=0.09%, sys=6.21%, ctx=6826, 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=144577: Thu Jul 16 04:20:31 2026 read: IOPS=12, BW=48.3KiB/s (49.5kB/s)(5940KiB/122875msec) clat (usec): min=27, max=399022, avg=39671.30, stdev=29438.41 lat (usec): min=27, max=399024, avg=39674.15, stdev=29440.08 clat percentiles (usec): | 1.00th=[ 50], 5.00th=[ 65], 10.00th=[ 10683], 20.00th=[ 19530], | 30.00th=[ 24511], 40.00th=[ 28967], 50.00th=[ 33817], 60.00th=[ 40109], | 70.00th=[ 48497], 80.00th=[ 57934], 90.00th=[ 73925], 95.00th=[ 85459], | 99.00th=[131597], 99.50th=[162530], 99.90th=[278922], 99.95th=[400557], | 99.99th=[400557] bw ( KiB/s): min= 5, max= 134, per=24.97%, avg=48.70, stdev=20.77, samples=237 iops : min= 1, max= 33, avg=11.52, stdev= 5.22, samples=237 write: IOPS=12, BW=51.7KiB/s (52.9kB/s)(6348KiB/122875msec); 0 zone resets clat (usec): min=1138, max=318526, avg=40183.80, stdev=41018.27 lat (usec): min=1139, max=318527, avg=40193.26, stdev=41023.13 clat percentiles (usec): | 1.00th=[ 1254], 5.00th=[ 1532], 10.00th=[ 2180], 20.00th=[ 4752], | 30.00th=[ 9372], 40.00th=[ 19530], 50.00th=[ 30278], 60.00th=[ 39584], | 70.00th=[ 52167], 80.00th=[ 67634], 90.00th=[ 93848], 95.00th=[115868], | 99.00th=[179307], 99.50th=[214959], 99.90th=[291505], 99.95th=[316670], | 99.99th=[316670] bw ( KiB/s): min= 15, max= 143, per=25.02%, avg=51.05, stdev=21.27, samples=241 iops : min= 3, max= 35, avg=12.12, stdev= 5.35, samples=241 lat (usec) : 50=0.52%, 100=3.06%, 250=0.36%, 500=0.23%, 750=0.03% lat (msec) : 2=4.65%, 4=4.46%, 10=7.26%, 20=10.22%, 50=38.96% lat (msec) : 100=24.25%, 250=5.76%, 500=0.23% cpu : usr=0.10%, sys=5.92%, ctx=6863, 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=144578: Thu Jul 16 04:20:31 2026 read: IOPS=12, BW=49.8KiB/s (50.0kB/s)(6028KiB/121103msec) clat (usec): min=33, max=344359, avg=39507.81, stdev=31671.64 lat (usec): min=34, max=344361, avg=39509.98, stdev=31672.04 clat percentiles (usec): | 1.00th=[ 48], 5.00th=[ 61], 10.00th=[ 310], 20.00th=[ 19006], | 30.00th=[ 23725], 40.00th=[ 28967], 50.00th=[ 33817], 60.00th=[ 40109], | 70.00th=[ 47449], 80.00th=[ 56886], 90.00th=[ 72877], 95.00th=[ 89654], | 99.00th=[149947], 99.50th=[214959], 99.90th=[299893], 99.95th=[346031], | 99.99th=[346031] bw ( KiB/s): min= 5, max= 111, per=25.35%, avg=49.44, stdev=20.86, samples=237 iops : min= 1, max= 27, avg=11.71, stdev= 5.25, samples=237 write: IOPS=12, BW=51.7KiB/s (52.9kB/s)(6260KiB/121103msec); 0 zone resets clat (usec): min=1160, max=401241, avg=39198.31, stdev=37879.81 lat (usec): min=1161, max=401243, avg=39205.81, stdev=37879.75 clat percentiles (usec): | 1.00th=[ 1254], 5.00th=[ 1434], 10.00th=[ 2278], 20.00th=[ 5276], | 30.00th=[ 9896], 40.00th=[ 19006], 50.00th=[ 29492], 60.00th=[ 41681], | 70.00th=[ 54789], 80.00th=[ 68682], 90.00th=[ 89654], 95.00th=[106431], | 99.00th=[154141], 99.50th=[179307], 99.90th=[258999], 99.95th=[400557], | 99.99th=[400557] bw ( KiB/s): min= 7, max= 103, per=25.02%, avg=51.05, stdev=18.77, samples=238 iops : min= 1, max= 25, avg=12.12, stdev= 4.73, samples=238 lat (usec) : 50=0.72%, 100=3.81%, 250=0.36%, 500=0.13%, 750=0.07% lat (usec) : 1000=0.07% lat (msec) : 2=4.65%, 4=3.94%, 10=7.10%, 20=10.90%, 50=38.41% lat (msec) : 100=24.77%, 250=4.85%, 500=0.23% cpu : usr=0.08%, sys=5.93%, ctx=6794, 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=144579: Thu Jul 16 04:20:31 2026 read: IOPS=12, BW=49.6KiB/s (50.8kB/s)(6052KiB/122052msec) clat (usec): min=33, max=494969, avg=39957.52, stdev=30591.16 lat (usec): min=33, max=494971, avg=39959.24, stdev=30591.19 clat percentiles (usec): | 1.00th=[ 51], 5.00th=[ 68], 10.00th=[ 12387], 20.00th=[ 19268], | 30.00th=[ 24249], 40.00th=[ 28705], 50.00th=[ 34341], 60.00th=[ 41681], | 70.00th=[ 49546], 80.00th=[ 58983], 90.00th=[ 73925], 95.00th=[ 85459], | 99.00th=[139461], 99.50th=[177210], 99.90th=[312476], 99.95th=[497026], | 99.99th=[497026] bw ( KiB/s): min= 5, max= 103, per=25.40%, avg=49.53, stdev=19.94, samples=237 iops : min= 1, max= 25, avg=11.73, stdev= 5.01, samples=237 write: IOPS=12, BW=51.1KiB/s (52.3kB/s)(6236KiB/122052msec); 0 zone resets clat (usec): min=1077, max=347823, avg=39375.71, stdev=39185.36 lat (usec): min=1078, max=347824, avg=39386.45, stdev=39187.27 clat percentiles (usec): | 1.00th=[ 1254], 5.00th=[ 1500], 10.00th=[ 2474], 20.00th=[ 4948], | 30.00th=[ 10290], 40.00th=[ 19792], 50.00th=[ 30540], 60.00th=[ 40109], | 70.00th=[ 51643], 80.00th=[ 67634], 90.00th=[ 91751], 95.00th=[111674], | 99.00th=[154141], 99.50th=[221250], 99.90th=[329253], 99.95th=[346031], | 99.99th=[346031] bw ( KiB/s): min= 7, max= 125, per=24.92%, avg=50.84, stdev=20.85, samples=238 iops : min= 1, max= 31, avg=12.07, stdev= 5.26, samples=238 lat (usec) : 50=0.33%, 100=2.90%, 250=0.52%, 500=0.13%, 750=0.03% lat (usec) : 1000=0.03% lat (msec) : 2=4.23%, 4=4.52%, 10=6.84%, 20=11.49%, 50=38.90% lat (msec) : 100=24.97%, 250=4.92%, 500=0.20% cpu : usr=0.08%, sys=6.01%, ctx=6976, 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=195KiB/s (200kB/s), 48.3KiB/s-50.2KiB/s (49.5kB/s-51.4kB/s), io=23.4MiB (24.6MB), run=119316-122875msec WRITE: bw=205KiB/s (210kB/s), 51.1KiB/s-52.8KiB/s (52.3kB/s-54.0kB/s), io=24.6MiB (25.7MB), run=119316-122875msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144571: Thu Jul 16 04:22:59 2026 read: IOPS=5, BW=22.3KiB/s (22.8kB/s)(5992KiB/268690msec) clat (msec): min=6, max=890, avg=37.59, stdev=38.17 lat (msec): min=6, max=890, avg=37.59, stdev=38.17 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 24], 50.00th=[ 28], 60.00th=[ 34], | 70.00th=[ 41], 80.00th=[ 51], 90.00th=[ 72], 95.00th=[ 96], | 99.00th=[ 159], 99.50th=[ 207], 99.90th=[ 334], 99.95th=[ 894], | 99.99th=[ 894] bw ( KiB/s): min= 7, max= 87, per=28.01%, avg=24.65, stdev=15.55, samples=469 iops : min= 1, max= 21, avg= 5.51, stdev= 3.91, samples=469 write: IOPS=5, BW=23.4KiB/s (23.0kB/s)(6296KiB/268690msec); 0 zone resets clat (msec): min=46, max=527, avg=134.63, stdev=57.87 lat (msec): min=46, max=527, avg=134.63, stdev=57.87 clat percentiles (msec): | 1.00th=[ 56], 5.00th=[ 67], 10.00th=[ 75], 20.00th=[ 88], | 30.00th=[ 99], 40.00th=[ 109], 50.00th=[ 123], 60.00th=[ 136], | 70.00th=[ 153], 80.00th=[ 176], 90.00th=[ 207], 95.00th=[ 247], | 99.00th=[ 326], 99.50th=[ 359], 99.90th=[ 422], 99.95th=[ 527], | 99.99th=[ 527] bw ( KiB/s): min= 7, max= 48, per=25.09%, avg=23.08, stdev= 9.48, samples=524 iops : min= 1, max= 12, avg= 5.12, stdev= 2.40, samples=524 lat (msec) : 10=1.76%, 20=12.89%, 50=24.28%, 100=23.96%, 250=34.57% lat (msec) : 500=2.47%, 750=0.03%, 1000=0.03% cpu : usr=0.05%, sys=1.56%, ctx=5561, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144572: Thu Jul 16 04:22:59 2026 read: IOPS=5, BW=21.8KiB/s (22.4kB/s)(5940KiB/271964msec) clat (msec): min=6, max=899, avg=38.08, stdev=40.85 lat (msec): min=6, max=899, avg=38.08, stdev=40.85 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 14], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 24], 50.00th=[ 28], 60.00th=[ 33], | 70.00th=[ 40], 80.00th=[ 49], 90.00th=[ 70], 95.00th=[ 102], | 99.00th=[ 184], 99.50th=[ 253], 99.90th=[ 368], 99.95th=[ 902], | 99.99th=[ 902] bw ( KiB/s): min= 7, max= 87, per=27.91%, avg=24.56, stdev=15.34, samples=467 iops : min= 1, max= 21, avg= 5.50, stdev= 3.86, samples=467 write: IOPS=5, BW=23.3KiB/s (23.9kB/s)(6348KiB/271964msec); 0 zone resets clat (msec): min=42, max=540, avg=135.43, stdev=57.50 lat (msec): min=42, max=540, avg=135.44, stdev=57.50 clat percentiles (msec): | 1.00th=[ 54], 5.00th=[ 67], 10.00th=[ 77], 20.00th=[ 89], | 30.00th=[ 101], 40.00th=[ 111], 50.00th=[ 122], 60.00th=[ 136], | 70.00th=[ 155], 80.00th=[ 178], 90.00th=[ 211], 95.00th=[ 241], | 99.00th=[ 317], 99.50th=[ 372], 99.90th=[ 456], 99.95th=[ 542], | 99.99th=[ 542] bw ( KiB/s): min= 7, max= 48, per=24.96%, avg=22.97, stdev= 9.22, samples=532 iops : min= 1, max= 12, avg= 5.10, stdev= 2.36, samples=532 lat (msec) : 10=1.46%, 20=12.86%, 50=25.10%, 100=21.91%, 250=36.23% lat (msec) : 500=2.38%, 750=0.03%, 1000=0.03% cpu : usr=0.04%, sys=1.49%, ctx=5570, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144573: Thu Jul 16 04:22:59 2026 read: IOPS=5, BW=22.4KiB/s (22.9kB/s)(6028KiB/268963msec) clat (msec): min=6, max=416, avg=38.02, stdev=34.47 lat (msec): min=6, max=416, avg=38.03, stdev=34.47 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 24], 50.00th=[ 29], 60.00th=[ 34], | 70.00th=[ 41], 80.00th=[ 51], 90.00th=[ 73], 95.00th=[ 99], | 99.00th=[ 155], 99.50th=[ 215], 99.90th=[ 372], 99.95th=[ 418], | 99.99th=[ 418] bw ( KiB/s): min= 7, max= 96, per=27.48%, avg=24.18, stdev=16.38, samples=481 iops : min= 1, max= 24, avg= 5.40, stdev= 4.13, samples=481 write: IOPS=5, BW=23.3KiB/s (23.8kB/s)(6260KiB/268963msec); 0 zone resets clat (msec): min=40, max=1006, avg=134.93, stdev=60.94 lat (msec): min=40, max=1006, avg=134.94, stdev=60.94 clat percentiles (msec): | 1.00th=[ 52], 5.00th=[ 67], 10.00th=[ 78], 20.00th=[ 89], | 30.00th=[ 101], 40.00th=[ 111], 50.00th=[ 124], 60.00th=[ 136], | 70.00th=[ 153], 80.00th=[ 174], 90.00th=[ 209], 95.00th=[ 249], | 99.00th=[ 313], 99.50th=[ 363], 99.90th=[ 518], 99.95th=[ 1003], | 99.99th=[ 1003] bw ( KiB/s): min= 7, max= 55, per=24.84%, avg=22.86, stdev= 9.28, samples=527 iops : min= 1, max= 13, avg= 5.06, stdev= 2.36, samples=527 lat (msec) : 10=1.50%, 20=13.15%, 50=24.77%, 100=22.72%, 250=35.25% lat (msec) : 500=2.54%, 750=0.03%, 2000=0.03% cpu : usr=0.05%, sys=1.54%, ctx=5576, 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=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=144574: Thu Jul 16 04:22:59 2026 read: IOPS=5, BW=22.7KiB/s (23.2kB/s)(6052KiB/266913msec) clat (msec): min=6, max=465, avg=37.31, stdev=36.20 lat (msec): min=6, max=465, avg=37.32, stdev=36.20 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 20], 40.00th=[ 24], 50.00th=[ 28], 60.00th=[ 33], | 70.00th=[ 40], 80.00th=[ 50], 90.00th=[ 68], 95.00th=[ 97], | 99.00th=[ 176], 99.50th=[ 234], 99.90th=[ 443], 99.95th=[ 464], | 99.99th=[ 464] bw ( KiB/s): min= 7, max= 94, per=28.62%, avg=25.19, stdev=16.26, samples=464 iops : min= 1, max= 23, avg= 5.65, stdev= 4.09, samples=464 write: IOPS=5, BW=23.4KiB/s (23.9kB/s)(6236KiB/266913msec); 0 zone resets clat (msec): min=46, max=987, avg=134.69, stdev=60.75 lat (msec): min=46, max=987, avg=134.69, stdev=60.75 clat percentiles (msec): | 1.00th=[ 56], 5.00th=[ 68], 10.00th=[ 75], 20.00th=[ 89], | 30.00th=[ 100], 40.00th=[ 110], 50.00th=[ 124], 60.00th=[ 138], | 70.00th=[ 150], 80.00th=[ 171], 90.00th=[ 209], 95.00th=[ 247], | 99.00th=[ 326], 99.50th=[ 363], 99.90th=[ 502], 99.95th=[ 986], | 99.99th=[ 986] bw ( KiB/s): min= 7, max= 47, per=24.99%, avg=22.99, stdev= 9.27, samples=522 iops : min= 1, max= 11, avg= 5.10, stdev= 2.36, samples=522 lat (msec) : 10=1.60%, 20=13.70%, 50=24.71%, 100=22.82%, 250=34.57% lat (msec) : 500=2.54%, 750=0.03%, 1000=0.03% cpu : usr=0.04%, sys=1.56%, ctx=5720, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=88.3KiB/s (90.4kB/s), 21.8KiB/s-22.7KiB/s (22.4kB/s-23.2kB/s), io=23.4MiB (24.6MB), run=266913-271964msec WRITE: bw=92.4KiB/s (94.7kB/s), 23.3KiB/s-23.4KiB/s (23.8kB/s-23.0kB/s), io=24.6MiB (25.7MB), run=266913-271964msec 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=144634: Thu Jul 16 04:23:41 2026 read: IOPS=12, BW=193KiB/s (197kB/s)(5920KiB/30717msec) clat (usec): min=35, max=197286, avg=40003.11, stdev=32838.94 lat (usec): min=35, max=197288, avg=40008.43, stdev=32842.26 clat percentiles (usec): | 1.00th=[ 44], 5.00th=[ 63], 10.00th=[ 72], 20.00th=[ 202], | 30.00th=[ 21890], 40.00th=[ 30016], 50.00th=[ 36439], 60.00th=[ 42730], | 70.00th=[ 52691], 80.00th=[ 64750], 90.00th=[ 80217], 95.00th=[ 94897], | 99.00th=[164627], 99.50th=[189793], 99.90th=[198181], 99.95th=[198181], | 99.99th=[198181] bw ( KiB/s): min= 62, max= 478, per=26.44%, avg=195.15, stdev=84.94, samples=59 iops : min= 3, max= 29, avg=11.42, stdev= 5.44, samples=59 write: IOPS=12, BW=207KiB/s (212kB/s)(6368KiB/30717msec); 0 zone resets clat (usec): min=1567, max=337855, avg=39822.03, stdev=43663.84 lat (usec): min=1569, max=337858, avg=39842.82, stdev=43676.94 clat percentiles (usec): | 1.00th=[ 1696], 5.00th=[ 2442], 10.00th=[ 3720], 20.00th=[ 7570], | 30.00th=[ 10421], 40.00th=[ 15270], 50.00th=[ 27132], 60.00th=[ 39060], | 70.00th=[ 49546], 80.00th=[ 65799], 90.00th=[ 92799], 95.00th=[116917], | 99.00th=[240124], 99.50th=[270533], 99.90th=[337642], 99.95th=[337642], | 99.99th=[337642] bw ( KiB/s): min= 61, max= 408, per=26.71%, avg=207.28, stdev=85.37, samples=60 iops : min= 3, max= 25, avg=12.18, stdev= 5.40, samples=60 lat (usec) : 50=0.78%, 100=6.64%, 250=2.21%, 500=0.13%, 750=0.26% lat (usec) : 1000=0.13% lat (msec) : 2=1.04%, 4=4.30%, 10=9.38%, 20=10.81%, 50=33.07% lat (msec) : 100=25.39%, 250=5.60%, 500=0.26% cpu : usr=0.06%, sys=6.73%, ctx=1596, 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=144635: Thu Jul 16 04:23:41 2026 read: IOPS=11, BW=177KiB/s (181kB/s)(5744KiB/32444msec) clat (usec): min=39, max=445357, avg=48828.91, stdev=43530.03 lat (usec): min=39, max=445358, avg=48830.76, stdev=43530.47 clat percentiles (usec): | 1.00th=[ 57], 5.00th=[ 64], 10.00th=[ 87], 20.00th=[ 21365], | 30.00th=[ 29754], 40.00th=[ 35390], 50.00th=[ 41157], 60.00th=[ 50070], | 70.00th=[ 58983], 80.00th=[ 71828], 90.00th=[ 88605], 95.00th=[103285], | 99.00th=[238027], 99.50th=[274727], 99.90th=[446694], 99.95th=[446694], | 99.99th=[446694] bw ( KiB/s): min= 31, max= 345, per=24.38%, avg=179.89, stdev=70.08, samples=63 iops : min= 1, max= 21, avg=10.48, stdev= 4.43, samples=63 write: IOPS=12, BW=202KiB/s (207kB/s)(6544KiB/32444msec); 0 zone resets clat (usec): min=1698, max=223915, avg=36278.41, stdev=37838.30 lat (usec): min=1700, max=223917, avg=36305.74, stdev=37818.36 clat percentiles (usec): | 1.00th=[ 1827], 5.00th=[ 2343], 10.00th=[ 3458], 20.00th=[ 7242], | 30.00th=[ 10552], 40.00th=[ 15664], 50.00th=[ 23200], 60.00th=[ 33424], | 70.00th=[ 44303], 80.00th=[ 60031], 90.00th=[ 84411], 95.00th=[109577], | 99.00th=[168821], 99.50th=[185598], 99.90th=[223347], 99.95th=[223347], | 99.99th=[223347] bw ( KiB/s): min= 31, max= 445, per=26.32%, avg=204.27, stdev=95.60, samples=63 iops : min= 1, max= 27, avg=12.02, stdev= 6.08, samples=63 lat (usec) : 50=0.13%, 100=5.08%, 250=0.65%, 1000=0.13% lat (msec) : 2=1.69%, 4=4.17%, 10=9.24%, 20=11.98%, 50=34.77% lat (msec) : 100=25.52%, 250=6.25%, 500=0.39% cpu : usr=0.06%, sys=6.70%, ctx=1686, 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=144636: Thu Jul 16 04:23:41 2026 read: IOPS=12, BW=200KiB/s (205kB/s)(6256KiB/31206msec) clat (usec): min=38, max=363401, avg=43171.78, stdev=37882.38 lat (usec): min=38, max=363402, avg=43173.12, stdev=37882.43 clat percentiles (usec): | 1.00th=[ 43], 5.00th=[ 60], 10.00th=[ 69], 20.00th=[ 12911], | 30.00th=[ 26608], 40.00th=[ 33162], 50.00th=[ 39584], 60.00th=[ 45351], | 70.00th=[ 54264], 80.00th=[ 65799], 90.00th=[ 84411], 95.00th=[ 99091], | 99.00th=[175113], 99.50th=[274727], 99.90th=[362808], 99.95th=[362808], | 99.99th=[362808] bw ( KiB/s): min= 31, max= 512, per=27.31%, avg=201.57, stdev=91.29, samples=61 iops : min= 1, max= 32, avg=11.85, stdev= 5.78, samples=61 write: IOPS=12, BW=193KiB/s (198kB/s)(6032KiB/31206msec); 0 zone resets clat (usec): min=1498, max=181750, avg=37861.62, stdev=34463.83 lat (usec): min=1501, max=181753, avg=37865.97, stdev=34464.94 clat percentiles (usec): | 1.00th=[ 1860], 5.00th=[ 2671], 10.00th=[ 4490], 20.00th=[ 7701], | 30.00th=[ 12387], 40.00th=[ 19006], 50.00th=[ 28705], 60.00th=[ 37487], | 70.00th=[ 48497], 80.00th=[ 64750], 90.00th=[ 85459], 95.00th=[110625], | 99.00th=[152044], 99.50th=[175113], 99.90th=[181404], 99.95th=[181404], | 99.99th=[181404] bw ( KiB/s): min= 61, max= 351, per=25.25%, avg=195.93, stdev=77.50, samples=60 iops : min= 3, max= 21, avg=11.48, stdev= 4.95, samples=60 lat (usec) : 50=0.52%, 100=7.55%, 250=1.30%, 500=0.13%, 1000=0.13% lat (msec) : 2=1.30%, 4=4.04%, 10=7.55%, 20=9.51%, 50=36.72% lat (msec) : 100=26.17%, 250=4.82%, 500=0.26% cpu : usr=0.08%, sys=6.19%, ctx=1636, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144637: Thu Jul 16 04:23:41 2026 read: IOPS=11, BW=188KiB/s (193kB/s)(6032KiB/32012msec) clat (usec): min=33, max=324250, avg=46690.14, stdev=39209.19 lat (usec): min=33, max=324251, avg=46691.57, stdev=39209.21 clat percentiles (usec): | 1.00th=[ 46], 5.00th=[ 63], 10.00th=[ 80], 20.00th=[ 21627], | 30.00th=[ 29230], 40.00th=[ 35914], 50.00th=[ 43254], 60.00th=[ 49546], | 70.00th=[ 56361], 80.00th=[ 66847], 90.00th=[ 83362], 95.00th=[108528], | 99.00th=[202376], 99.50th=[274727], 99.90th=[325059], 99.95th=[325059], | 99.99th=[325059] bw ( KiB/s): min= 31, max= 384, per=25.29%, avg=186.63, stdev=78.77, samples=63 iops : min= 1, max= 24, avg=10.90, stdev= 5.04, samples=63 write: IOPS=12, BW=195KiB/s (200kB/s)(6256KiB/32012msec); 0 zone resets clat (usec): min=1485, max=240092, avg=36741.13, stdev=37226.76 lat (usec): min=1487, max=240095, avg=36744.38, stdev=37227.70 clat percentiles (usec): | 1.00th=[ 1565], 5.00th=[ 2376], 10.00th=[ 3916], 20.00th=[ 7046], | 30.00th=[ 10028], 40.00th=[ 14484], 50.00th=[ 24773], 60.00th=[ 37487], | 70.00th=[ 46400], 80.00th=[ 64226], 90.00th=[ 86508], 95.00th=[105382], | 99.00th=[177210], 99.50th=[223347], 99.90th=[240124], 99.95th=[240124], | 99.99th=[240124] bw ( KiB/s): min= 31, max= 448, per=25.10%, avg=194.78, stdev=79.34, samples=63 iops : min= 1, max= 28, avg=11.41, stdev= 5.01, samples=63 lat (usec) : 50=0.78%, 100=5.34%, 250=1.04%, 500=0.52%, 1000=0.13% lat (msec) : 2=2.21%, 4=3.52%, 10=10.16%, 20=9.77%, 50=33.07% lat (msec) : 100=27.60%, 250=5.60%, 500=0.26% cpu : usr=0.10%, sys=6.52%, ctx=1694, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=738KiB/s (756kB/s), 177KiB/s-200KiB/s (181kB/s-205kB/s), io=23.4MiB (24.5MB), run=30717-32444msec WRITE: bw=777KiB/s (795kB/s), 193KiB/s-207KiB/s (198kB/s-212kB/s), io=24.6MiB (25.8MB), run=30717-32444msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144629: Thu Jul 16 04:24:18 2026 read: IOPS=5, BW=86.7KiB/s (88.8kB/s)(5920KiB/68243msec) clat (msec): min=7, max=549, avg=41.48, stdev=44.91 lat (msec): min=7, max=549, avg=41.49, stdev=44.91 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 17], | 30.00th=[ 20], 40.00th=[ 23], 50.00th=[ 26], 60.00th=[ 31], | 70.00th=[ 39], 80.00th=[ 58], 90.00th=[ 91], 95.00th=[ 124], | 99.00th=[ 180], 99.50th=[ 239], 99.90th=[ 550], 99.95th=[ 550], | 99.99th=[ 550] bw ( KiB/s): min= 30, max= 318, per=26.88%, avg=91.93, stdev=60.46, samples=125 iops : min= 1, max= 19, avg= 5.00, stdev= 3.85, samples=125 write: IOPS=5, BW=93.3KiB/s (95.6kB/s)(6368KiB/68243msec); 0 zone resets clat (msec): min=48, max=536, avg=132.52, stdev=57.96 lat (msec): min=48, max=536, avg=132.52, stdev=57.96 clat percentiles (msec): | 1.00th=[ 56], 5.00th=[ 70], 10.00th=[ 75], 20.00th=[ 89], | 30.00th=[ 101], 40.00th=[ 111], 50.00th=[ 121], 60.00th=[ 130], | 70.00th=[ 142], 80.00th=[ 165], 90.00th=[ 215], 95.00th=[ 243], | 99.00th=[ 347], 99.50th=[ 401], 99.90th=[ 535], 99.95th=[ 535], | 99.99th=[ 535] bw ( KiB/s): min= 31, max= 190, per=26.46%, avg=95.27, stdev=39.91, samples=131 iops : min= 1, max= 11, avg= 5.21, stdev= 2.62, samples=131 lat (msec) : 10=1.04%, 20=14.71%, 50=21.88%, 100=22.53%, 250=37.76% lat (msec) : 500=1.82%, 750=0.26% cpu : usr=0.04%, sys=1.59%, ctx=1368, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144630: Thu Jul 16 04:24:18 2026 read: IOPS=5, BW=82.2KiB/s (84.1kB/s)(5744KiB/69900msec) clat (msec): min=7, max=236, avg=36.78, stdev=35.59 lat (msec): min=7, max=236, avg=36.78, stdev=35.59 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 12], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 24], 60.00th=[ 29], | 70.00th=[ 34], 80.00th=[ 52], 90.00th=[ 80], 95.00th=[ 122], | 99.00th=[ 182], 99.50th=[ 209], 99.90th=[ 236], 99.95th=[ 236], | 99.99th=[ 236] bw ( KiB/s): min= 22, max= 345, per=28.60%, avg=97.80, stdev=66.55, samples=116 iops : min= 1, max= 21, avg= 5.36, stdev= 4.22, samples=116 write: IOPS=5, BW=93.6KiB/s (95.9kB/s)(6544KiB/69900msec); 0 zone resets clat (msec): min=38, max=772, avg=138.32, stdev=74.89 lat (msec): min=38, max=772, avg=138.33, stdev=74.89 clat percentiles (msec): | 1.00th=[ 52], 5.00th=[ 66], 10.00th=[ 75], 20.00th=[ 88], | 30.00th=[ 99], 40.00th=[ 108], 50.00th=[ 120], 60.00th=[ 134], | 70.00th=[ 150], 80.00th=[ 176], 90.00th=[ 226], 95.00th=[ 275], | 99.00th=[ 430], 99.50th=[ 456], 99.90th=[ 776], 99.95th=[ 776], | 99.99th=[ 776] bw ( KiB/s): min= 30, max= 192, per=26.45%, avg=95.23, stdev=40.58, samples=135 iops : min= 1, max= 12, avg= 5.21, stdev= 2.68, samples=135 lat (msec) : 10=1.17%, 20=16.41%, 50=20.18%, 100=22.27%, 250=36.59% lat (msec) : 500=3.26%, 1000=0.13% cpu : usr=0.04%, sys=1.55%, ctx=1470, 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=144631: Thu Jul 16 04:24:18 2026 read: IOPS=5, BW=93.4KiB/s (95.6kB/s)(6256KiB/67006msec) clat (msec): min=7, max=362, avg=38.81, stdev=39.46 lat (msec): min=7, max=362, avg=38.82, stdev=39.47 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 17], | 30.00th=[ 19], 40.00th=[ 22], 50.00th=[ 25], 60.00th=[ 30], | 70.00th=[ 36], 80.00th=[ 53], 90.00th=[ 84], 95.00th=[ 114], | 99.00th=[ 218], 99.50th=[ 292], 99.90th=[ 363], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 30, max= 286, per=30.09%, avg=102.90, stdev=65.90, samples=120 iops : min= 1, max= 17, avg= 5.70, stdev= 4.16, samples=120 write: IOPS=5, BW=90.0KiB/s (92.2kB/s)(6032KiB/67006msec); 0 zone resets clat (msec): min=52, max=779, avg=137.09, stdev=72.94 lat (msec): min=52, max=779, avg=137.10, stdev=72.94 clat percentiles (msec): | 1.00th=[ 54], 5.00th=[ 67], 10.00th=[ 78], 20.00th=[ 89], | 30.00th=[ 100], 40.00th=[ 108], 50.00th=[ 115], 60.00th=[ 129], | 70.00th=[ 148], 80.00th=[ 171], 90.00th=[ 226], 95.00th=[ 268], | 99.00th=[ 401], 99.50th=[ 477], 99.90th=[ 776], 99.95th=[ 776], | 99.99th=[ 776] bw ( KiB/s): min= 31, max= 191, per=25.06%, avg=90.21, stdev=39.37, samples=131 iops : min= 1, max= 11, avg= 4.89, stdev= 2.59, samples=131 lat (msec) : 10=0.91%, 20=16.41%, 50=22.92%, 100=22.01%, 250=34.38% lat (msec) : 500=3.26%, 1000=0.13% cpu : usr=0.06%, sys=1.59%, ctx=1438, 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=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=144632: Thu Jul 16 04:24:18 2026 read: IOPS=5, BW=87.8KiB/s (89.0kB/s)(6032KiB/68664msec) clat (msec): min=8, max=352, avg=39.27, stdev=40.69 lat (msec): min=8, max=352, avg=39.27, stdev=40.69 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 16], | 30.00th=[ 20], 40.00th=[ 23], 50.00th=[ 25], 60.00th=[ 30], | 70.00th=[ 37], 80.00th=[ 52], 90.00th=[ 80], 95.00th=[ 130], | 99.00th=[ 207], 99.50th=[ 249], 99.90th=[ 351], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 31, max= 288, per=28.07%, avg=96.01, stdev=60.85, samples=122 iops : min= 1, max= 18, avg= 5.26, stdev= 3.93, samples=122 write: IOPS=5, BW=91.1KiB/s (93.3kB/s)(6256KiB/68664msec); 0 zone resets clat (msec): min=51, max=512, avg=137.60, stdev=65.80 lat (msec): min=51, max=512, avg=137.60, stdev=65.80 clat percentiles (msec): | 1.00th=[ 54], 5.00th=[ 68], 10.00th=[ 77], 20.00th=[ 89], | 30.00th=[ 101], 40.00th=[ 110], 50.00th=[ 118], 60.00th=[ 129], | 70.00th=[ 146], 80.00th=[ 178], 90.00th=[ 232], 95.00th=[ 271], | 99.00th=[ 380], 99.50th=[ 409], 99.90th=[ 514], 99.95th=[ 514], | 99.99th=[ 514] bw ( KiB/s): min= 30, max= 191, per=25.36%, avg=91.28, stdev=42.04, samples=134 iops : min= 1, max= 11, avg= 4.96, stdev= 2.74, samples=134 lat (msec) : 10=0.65%, 20=15.76%, 50=22.40%, 100=21.74%, 250=35.68% lat (msec) : 500=3.65%, 750=0.13% cpu : usr=0.05%, sys=1.60%, ctx=1412, 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=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=343KiB/s (351kB/s), 82.2KiB/s-93.4KiB/s (84.1kB/s-95.6kB/s), io=23.4MiB (24.5MB), run=67006-69900msec WRITE: bw=361KiB/s (369kB/s), 90.0KiB/s-93.6KiB/s (92.2kB/s-95.9kB/s), io=24.6MiB (25.8MB), run=67006-69900msec 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=144663: Thu Jul 16 04:24:31 2026 read: IOPS=2, BW=2269KiB/s (2324kB/s)(7168KiB/3159msec) clat (usec): min=624, max=363532, avg=236885.62, stdev=133661.04 lat (usec): min=626, max=363533, avg=236887.15, stdev=133660.83 clat percentiles (usec): | 1.00th=[ 627], 5.00th=[ 627], 10.00th=[ 627], 20.00th=[111674], | 30.00th=[256902], 40.00th=[256902], 50.00th=[270533], 60.00th=[295699], | 70.00th=[295699], 80.00th=[358613], 90.00th=[362808], 95.00th=[362808], | 99.00th=[362808], 99.50th=[362808], 99.90th=[362808], 99.95th=[362808], | 99.99th=[362808] bw ( KiB/s): min= 1996, max= 4087, per=62.27%, avg=3194.33, stdev=1078.49, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=1, BW=1621KiB/s (1660kB/s)(5120KiB/3159msec); 0 zone resets clat (msec): min=158, max=520, avg=299.04, stdev=133.92 lat (msec): min=158, max=520, avg=299.13, stdev=133.91 clat percentiles (msec): | 1.00th=[ 159], 5.00th=[ 159], 10.00th=[ 159], 20.00th=[ 159], | 30.00th=[ 253], 40.00th=[ 253], 50.00th=[ 271], 60.00th=[ 271], | 70.00th=[ 292], 80.00th=[ 292], 90.00th=[ 523], 95.00th=[ 523], | 99.00th=[ 523], 99.50th=[ 523], 99.90th=[ 523], 99.95th=[ 523], | 99.99th=[ 523] bw ( KiB/s): min= 1996, max= 3871, per=36.66%, avg=2632.67, stdev=1072.57, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (usec) : 750=8.33% lat (msec) : 250=16.67%, 500=66.67%, 750=8.33% cpu : usr=0.00%, sys=21.28%, ctx=264, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144664: Thu Jul 16 04:24:31 2026 read: IOPS=0, BW=513KiB/s (525kB/s)(2048KiB/3992msec) clat (usec): min=1034, max=342625, avg=171829.58, stdev=241541.28 lat (usec): min=1035, max=342626, avg=171831.14, stdev=241541.76 clat percentiles (usec): | 1.00th=[ 1037], 5.00th=[ 1037], 10.00th=[ 1037], 20.00th=[ 1037], | 30.00th=[ 1037], 40.00th=[ 1037], 50.00th=[ 1037], 60.00th=[341836], | 70.00th=[341836], 80.00th=[341836], 90.00th=[341836], 95.00th=[341836], | 99.00th=[341836], 99.50th=[341836], 99.90th=[341836], 99.95th=[341836], | 99.99th=[341836] bw ( KiB/s): min= 1777, max= 1896, per=35.80%, avg=1836.50, stdev=84.15, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2565KiB/s (2627kB/s)(10.0MiB/3992msec); 0 zone resets clat (msec): min=144, max=650, avg=364.54, stdev=179.43 lat (msec): min=144, max=650, avg=364.62, stdev=179.42 clat percentiles (msec): | 1.00th=[ 146], 5.00th=[ 146], 10.00th=[ 146], 20.00th=[ 165], | 30.00th=[ 186], 40.00th=[ 230], 50.00th=[ 321], 60.00th=[ 443], | 70.00th=[ 451], 80.00th=[ 518], 90.00th=[ 535], 95.00th=[ 651], | 99.00th=[ 651], 99.50th=[ 651], 99.90th=[ 651], 99.95th=[ 651], | 99.99th=[ 651] bw ( KiB/s): min= 1777, max= 6144, per=36.73%, avg=2637.67, stdev=1720.50, samples=6 iops : min= 1, max= 6, avg= 1.83, stdev= 2.04, samples=6 lat (msec) : 2=8.33%, 250=33.33%, 500=33.33%, 750=25.00% cpu : usr=0.05%, sys=19.24%, ctx=154, 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=144665: Thu Jul 16 04:24:31 2026 read: IOPS=1, BW=1975KiB/s (2022kB/s)(6144KiB/3111msec) clat (usec): min=398, max=362612, avg=61242.40, stdev=147641.37 lat (usec): min=399, max=362612, avg=61243.56, stdev=147641.04 clat percentiles (usec): | 1.00th=[ 400], 5.00th=[ 400], 10.00th=[ 400], 20.00th=[ 502], | 30.00th=[ 502], 40.00th=[ 1012], 50.00th=[ 1012], 60.00th=[ 1156], | 70.00th=[ 1778], 80.00th=[ 1778], 90.00th=[362808], 95.00th=[362808], | 99.00th=[362808], 99.50th=[362808], 99.90th=[362808], 99.95th=[362808], | 99.99th=[362808] bw ( KiB/s): min= 2031, max= 3871, per=57.52%, avg=2951.00, stdev=1301.08, samples=2 iops : min= 1, max= 3, avg= 2.00, stdev= 1.41, samples=2 write: IOPS=1, BW=1975KiB/s (2022kB/s)(6144KiB/3111msec); 0 zone resets clat (msec): min=199, max=699, avg=456.90, stdev=192.21 lat (msec): min=199, max=700, avg=457.00, stdev=192.23 clat percentiles (msec): | 1.00th=[ 199], 5.00th=[ 199], 10.00th=[ 199], 20.00th=[ 271], | 30.00th=[ 271], 40.00th=[ 443], 50.00th=[ 443], 60.00th=[ 542], | 70.00th=[ 584], 80.00th=[ 584], 90.00th=[ 701], 95.00th=[ 701], | 99.00th=[ 701], 99.50th=[ 701], 99.90th=[ 701], 99.95th=[ 701], | 99.99th=[ 701] bw ( KiB/s): min= 1793, max= 2031, per=26.99%, avg=1938.75, stdev=104.95, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 lat (usec) : 500=16.67% lat (msec) : 2=25.00%, 250=8.33%, 500=25.00%, 750=25.00% cpu : usr=0.00%, sys=17.20%, ctx=86, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144666: Thu Jul 16 04:24:31 2026 read: IOPS=1, BW=1746KiB/s (1788kB/s)(5120KiB/2933msec) clat (usec): min=538, max=347471, avg=69998.91, stdev=155112.12 lat (usec): min=538, max=347473, avg=69999.90, stdev=155112.32 clat percentiles (usec): | 1.00th=[ 537], 5.00th=[ 537], 10.00th=[ 537], 20.00th=[ 537], | 30.00th=[ 603], 40.00th=[ 603], 50.00th=[ 644], 60.00th=[ 644], | 70.00th=[ 734], 80.00th=[ 734], 90.00th=[346031], 95.00th=[346031], | 99.00th=[346031], 99.50th=[346031], 99.90th=[346031], 99.95th=[346031], | 99.99th=[346031] bw ( KiB/s): min= 7742, max= 7742, per=100.00%, avg=7742.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=2, BW=2444KiB/s (2503kB/s)(7168KiB/2933msec); 0 zone resets clat (msec): min=201, max=633, avg=368.68, stdev=165.87 lat (msec): min=202, max=633, avg=368.83, stdev=165.79 clat percentiles (msec): | 1.00th=[ 203], 5.00th=[ 203], 10.00th=[ 203], 20.00th=[ 232], | 30.00th=[ 288], 40.00th=[ 288], 50.00th=[ 317], 60.00th=[ 342], | 70.00th=[ 342], 80.00th=[ 567], 90.00th=[ 634], 95.00th=[ 634], | 99.00th=[ 634], 99.50th=[ 634], 99.90th=[ 634], 99.95th=[ 634], | 99.99th=[ 634] bw ( KiB/s): min= 1935, max= 3459, per=31.92%, avg=2292.80, stdev=653.27, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (usec) : 750=33.33% lat (msec) : 250=16.67%, 500=33.33%, 750=16.67% cpu : usr=0.00%, sys=20.36%, ctx=105, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=5130KiB/s (5253kB/s), 513KiB/s-2269KiB/s (525kB/s-2324kB/s), io=20.0MiB (20.0MB), run=2933-3992msec WRITE: bw=7182KiB/s (7355kB/s), 1621KiB/s-2565KiB/s (1660kB/s-2627kB/s), io=28.0MiB (29.4MB), run=2933-3992msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144658: Thu Jul 16 04:24:31 2026 read: IOPS=2, BW=2156KiB/s (2208kB/s)(7168KiB/3324msec) clat (msec): min=84, max=336, avg=158.23, stdev=91.37 lat (msec): min=84, max=336, avg=158.23, stdev=91.37 clat percentiles (msec): | 1.00th=[ 85], 5.00th=[ 85], 10.00th=[ 85], 20.00th=[ 100], | 30.00th=[ 104], 40.00th=[ 104], 50.00th=[ 121], 60.00th=[ 140], | 70.00th=[ 140], 80.00th=[ 224], 90.00th=[ 338], 95.00th=[ 338], | 99.00th=[ 338], 99.50th=[ 338], 99.90th=[ 338], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 1992, max= 5896, per=82.64%, avg=3879.33, stdev=1955.21, samples=3 iops : min= 1, max= 5, avg= 3.00, stdev= 2.00, samples=3 write: IOPS=1, BW=1540KiB/s (1577kB/s)(5120KiB/3324msec); 0 zone resets clat (msec): min=236, max=637, avg=438.72, stdev=153.65 lat (msec): min=236, max=637, avg=438.80, stdev=153.65 clat percentiles (msec): | 1.00th=[ 236], 5.00th=[ 236], 10.00th=[ 236], 20.00th=[ 236], | 30.00th=[ 363], 40.00th=[ 363], 50.00th=[ 426], 60.00th=[ 426], | 70.00th=[ 531], 80.00th=[ 531], 90.00th=[ 634], 95.00th=[ 634], | 99.00th=[ 634], 99.50th=[ 634], 99.90th=[ 634], 99.95th=[ 634], | 99.99th=[ 634] bw ( KiB/s): min= 1875, max= 2039, per=29.81%, avg=1958.50, stdev=71.89, 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=5.81%, ctx=87, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144659: Thu Jul 16 04:24:31 2026 read: IOPS=0, BW=483KiB/s (495kB/s)(2048KiB/4238msec) clat (msec): min=118, max=224, avg=171.57, stdev=74.95 lat (msec): min=118, max=224, avg=171.57, stdev=74.95 clat percentiles (msec): | 1.00th=[ 120], 5.00th=[ 120], 10.00th=[ 120], 20.00th=[ 120], | 30.00th=[ 120], 40.00th=[ 120], 50.00th=[ 120], 60.00th=[ 226], | 70.00th=[ 226], 80.00th=[ 226], 90.00th=[ 226], 95.00th=[ 226], | 99.00th=[ 226], 99.50th=[ 226], 99.90th=[ 226], 99.95th=[ 226], | 99.99th=[ 226] bw ( KiB/s): min= 1914, max= 1935, per=41.00%, avg=1924.50, stdev=14.85, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2416KiB/s (2474kB/s)(10.0MiB/4238msec); 0 zone resets clat (msec): min=144, max=688, avg=378.30, stdev=186.35 lat (msec): min=144, max=688, avg=378.41, stdev=186.34 clat percentiles (msec): | 1.00th=[ 144], 5.00th=[ 144], 10.00th=[ 144], 20.00th=[ 153], | 30.00th=[ 192], 40.00th=[ 292], 50.00th=[ 326], 60.00th=[ 426], | 70.00th=[ 510], 80.00th=[ 510], 90.00th=[ 542], 95.00th=[ 693], | 99.00th=[ 693], 99.50th=[ 693], 99.90th=[ 693], 99.95th=[ 693], | 99.99th=[ 693] bw ( KiB/s): min= 1914, max= 6095, per=39.01%, avg=2563.14, stdev=1558.26, samples=7 iops : min= 1, max= 5, avg= 1.57, stdev= 1.51, samples=7 lat (msec) : 250=41.67%, 500=25.00%, 750=33.33% cpu : usr=0.02%, sys=6.99%, ctx=102, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144660: Thu Jul 16 04:24:31 2026 read: IOPS=1, BW=1408KiB/s (1442kB/s)(6144KiB/4363msec) clat (msec): min=74, max=536, avg=307.28, stdev=197.91 lat (msec): min=74, max=536, avg=307.29, stdev=197.91 clat percentiles (msec): | 1.00th=[ 74], 5.00th=[ 74], 10.00th=[ 74], 20.00th=[ 132], | 30.00th=[ 132], 40.00th=[ 190], 50.00th=[ 190], 60.00th=[ 439], | 70.00th=[ 472], 80.00th=[ 472], 90.00th=[ 535], 95.00th=[ 535], | 99.00th=[ 535], 99.50th=[ 535], 99.90th=[ 535], 99.95th=[ 535], | 99.99th=[ 535] bw ( KiB/s): min= 1935, max= 4063, per=53.41%, avg=2507.25, stdev=1038.04, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1408KiB/s (1442kB/s)(6144KiB/4363msec); 0 zone resets clat (msec): min=197, max=674, avg=404.28, stdev=185.26 lat (msec): min=197, max=674, avg=404.38, stdev=185.26 clat percentiles (msec): | 1.00th=[ 199], 5.00th=[ 199], 10.00th=[ 199], 20.00th=[ 241], | 30.00th=[ 241], 40.00th=[ 363], 50.00th=[ 363], 60.00th=[ 384], | 70.00th=[ 567], 80.00th=[ 567], 90.00th=[ 676], 95.00th=[ 676], | 99.00th=[ 676], 99.50th=[ 676], 99.90th=[ 676], 99.95th=[ 676], | 99.99th=[ 676] bw ( KiB/s): min= 1928, max= 2039, per=30.18%, avg=1983.40, stdev=51.89, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 100=8.33%, 250=33.33%, 500=33.33%, 750=25.00% cpu : usr=0.00%, sys=6.05%, ctx=88, 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=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=144661: Thu Jul 16 04:24:31 2026 read: IOPS=1, BW=1357KiB/s (1389kB/s)(5120KiB/3774msec) clat (msec): min=89, max=515, avg=247.80, stdev=205.54 lat (msec): min=89, max=515, avg=247.80, stdev=205.54 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 90], 10.00th=[ 90], 20.00th=[ 90], | 30.00th=[ 101], 40.00th=[ 101], 50.00th=[ 109], 60.00th=[ 109], | 70.00th=[ 426], 80.00th=[ 426], 90.00th=[ 514], 95.00th=[ 514], | 99.00th=[ 514], 99.50th=[ 514], 99.90th=[ 514], 99.95th=[ 514], | 99.99th=[ 514] bw ( KiB/s): min= 1992, max= 6119, per=86.40%, avg=4055.50, stdev=2918.23, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=1, BW=1899KiB/s (1945kB/s)(7168KiB/3774msec); 0 zone resets clat (msec): min=214, max=524, avg=349.98, stdev=109.09 lat (msec): min=214, max=524, avg=350.10, stdev=109.04 clat percentiles (msec): | 1.00th=[ 215], 5.00th=[ 215], 10.00th=[ 215], 20.00th=[ 271], | 30.00th=[ 279], 40.00th=[ 279], 50.00th=[ 330], 60.00th=[ 388], | 70.00th=[ 388], 80.00th=[ 447], 90.00th=[ 523], 95.00th=[ 523], | 99.00th=[ 523], 99.50th=[ 523], 99.90th=[ 523], 99.95th=[ 523], | 99.99th=[ 523] bw ( KiB/s): min= 1928, max= 3750, per=35.49%, avg=2331.80, stdev=794.20, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (msec) : 100=8.33%, 250=25.00%, 500=50.00%, 750=16.67% cpu : usr=0.00%, sys=7.24%, ctx=135, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=4694KiB/s (4807kB/s), 483KiB/s-2156KiB/s (495kB/s-2208kB/s), io=20.0MiB (20.0MB), run=3324-4363msec WRITE: bw=6572KiB/s (6729kB/s), 1408KiB/s-2416KiB/s (1442kB/s-2474kB/s), io=28.0MiB (29.4MB), run=3324-4363msec 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=144673: Thu Jul 16 04:24:42 2026 read: IOPS=1, BW=5139KiB/s (5263kB/s)(12.0MiB/2391msec) clat (msec): min=415, max=1007, avg=747.28, stdev=302.49 lat (msec): min=415, max=1007, avg=747.28, stdev=302.49 clat percentiles (msec): | 1.00th=[ 418], 5.00th=[ 418], 10.00th=[ 418], 20.00th=[ 418], | 30.00th=[ 418], 40.00th=[ 818], 50.00th=[ 818], 60.00th=[ 818], | 70.00th=[ 1011], 80.00th=[ 1011], 90.00th=[ 1011], 95.00th=[ 1011], | 99.00th=[ 1011], 99.50th=[ 1011], 99.90th=[ 1011], 99.95th=[ 1011], | 99.99th=[ 1011] bw ( KiB/s): min= 8159, max= 8175, per=100.00%, avg=8167.00, stdev=11.31, 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=6.07%, ctx=64, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144674: Thu Jul 16 04:24:42 2026 read: IOPS=0, BW=2368KiB/s (2424kB/s)(4096KiB/1730msec) clat (nsec): min=162092k, max=162092k, avg=162092155.00, stdev= 0.00 lat (nsec): min=162093k, max=162093k, avg=162093340.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 163], 5.00th=[ 163], 10.00th=[ 163], 20.00th=[ 163], | 30.00th=[ 163], 40.00th=[ 163], 50.00th=[ 163], 60.00th=[ 163], | 70.00th=[ 163], 80.00th=[ 163], 90.00th=[ 163], 95.00th=[ 163], | 99.00th=[ 163], 99.50th=[ 163], 99.90th=[ 163], 99.95th=[ 163], | 99.99th=[ 163] bw ( KiB/s): min= 5944, max= 5944, per=86.75%, avg=5944.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=1, BW=4735KiB/s (4849kB/s)(8192KiB/1730msec); 0 zone resets clat (msec): min=600, max=855, avg=727.63, stdev=180.14 lat (msec): min=600, max=855, avg=727.86, stdev=180.22 clat percentiles (msec): | 1.00th=[ 600], 5.00th=[ 600], 10.00th=[ 600], 20.00th=[ 600], | 30.00th=[ 600], 40.00th=[ 600], 50.00th=[ 600], 60.00th=[ 852], | 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= 8175, max= 8175, per=72.55%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 750=33.33%, 1000=33.33% cpu : usr=0.00%, sys=14.40%, ctx=64, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144675: Thu Jul 16 04:24:42 2026 write: IOPS=1, BW=4226KiB/s (4327kB/s)(12.0MiB/2908msec); 0 zone resets clat (msec): min=278, max=1392, avg=947.12, stdev=589.29 lat (msec): min=279, max=1392, avg=947.54, stdev=589.39 clat percentiles (msec): | 1.00th=[ 279], 5.00th=[ 279], 10.00th=[ 279], 20.00th=[ 279], | 30.00th=[ 279], 40.00th=[ 1167], 50.00th=[ 1167], 60.00th=[ 1167], | 70.00th=[ 1385], 80.00th=[ 1385], 90.00th=[ 1385], 95.00th=[ 1385], | 99.00th=[ 1385], 99.50th=[ 1385], 99.90th=[ 1385], 99.95th=[ 1385], | 99.99th=[ 1385] bw ( KiB/s): min= 8031, max= 8192, per=71.99%, avg=8111.50, stdev=113.84, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.00%, sys=6.95%, ctx=67, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144677: Thu Jul 16 04:24:42 2026 write: IOPS=1, BW=5919KiB/s (6061kB/s)(12.0MiB/2076msec); 0 zone resets clat (msec): min=231, max=1337, avg=615.50, stdev=625.59 lat (msec): min=232, max=1337, avg=615.95, stdev=625.62 clat percentiles (msec): | 1.00th=[ 232], 5.00th=[ 232], 10.00th=[ 232], 20.00th=[ 232], | 30.00th=[ 232], 40.00th=[ 279], 50.00th=[ 279], 60.00th=[ 279], | 70.00th=[ 1334], 80.00th=[ 1334], 90.00th=[ 1334], 95.00th=[ 1334], | 99.00th=[ 1334], 99.50th=[ 1334], 99.90th=[ 1334], 99.95th=[ 1334], | 99.99th=[ 1334] bw ( KiB/s): min= 7366, max= 8175, per=68.96%, avg=7770.50, stdev=572.05, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 250=33.33%, 500=33.33%, 2000=33.33% cpu : usr=0.05%, sys=8.67%, 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=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=6852KiB/s (7017kB/s), 2368KiB/s-5139KiB/s (2424kB/s-5263kB/s), io=16.0MiB (16.8MB), run=1730-2391msec WRITE: bw=11.0MiB/s (11.5MB/s), 4226KiB/s-5919KiB/s (4327kB/s-6061kB/s), io=32.0MiB (33.6MB), run=1730-2908msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144676: Thu Jul 16 04:24:42 2026 read: IOPS=1, BW=5982KiB/s (6126kB/s)(12.0MiB/2054msec) clat (msec): min=584, max=700, avg=641.16, stdev=58.00 lat (msec): min=584, max=700, avg=641.16, stdev=58.00 clat percentiles (msec): | 1.00th=[ 584], 5.00th=[ 584], 10.00th=[ 584], 20.00th=[ 584], | 30.00th=[ 584], 40.00th=[ 642], 50.00th=[ 642], 60.00th=[ 642], | 70.00th=[ 701], 80.00th=[ 701], 90.00th=[ 701], 95.00th=[ 701], | 99.00th=[ 701], 99.50th=[ 701], 99.90th=[ 701], 99.95th=[ 701], | 99.99th=[ 701] bw ( KiB/s): min= 7846, max= 8192, per=100.00%, avg=8019.00, stdev=244.66, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 750=100.00% cpu : usr=0.00%, sys=19.09%, ctx=384, 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=144678: Thu Jul 16 04:24:42 2026 read: IOPS=0, BW=1769KiB/s (1812kB/s)(4096KiB/2315msec) clat (nsec): min=692952k, max=692952k, avg=692952462.00, stdev= 0.00 lat (nsec): min=692955k, max=692955k, avg=692954956.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 693], 5.00th=[ 693], 10.00th=[ 693], 20.00th=[ 693], | 30.00th=[ 693], 40.00th=[ 693], 50.00th=[ 693], 60.00th=[ 693], | 70.00th=[ 693], 80.00th=[ 693], 90.00th=[ 693], 95.00th=[ 693], | 99.00th=[ 693], 99.50th=[ 693], 99.90th=[ 693], 99.95th=[ 693], | 99.99th=[ 693] bw ( KiB/s): min= 7846, max= 7846, per=100.00%, avg=7846.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3539KiB/s (3624kB/s)(8192KiB/2315msec); 0 zone resets clat (msec): min=548, max=989, avg=769.36, stdev=311.85 lat (msec): min=549, max=990, avg=769.83, stdev=312.03 clat percentiles (msec): | 1.00th=[ 550], 5.00th=[ 550], 10.00th=[ 550], 20.00th=[ 550], | 30.00th=[ 550], 40.00th=[ 550], 50.00th=[ 550], 60.00th=[ 995], | 70.00th=[ 995], 80.00th=[ 995], 90.00th=[ 995], 95.00th=[ 995], | 99.00th=[ 995], 99.50th=[ 995], 99.90th=[ 995], 99.95th=[ 995], | 99.99th=[ 995] bw ( KiB/s): min= 8192, max= 8192, per=77.23%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 750=66.67%, 1000=33.33% cpu : usr=0.00%, sys=11.11%, ctx=202, 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=144679: Thu Jul 16 04:24:42 2026 write: IOPS=0, BW=3978KiB/s (4073kB/s)(12.0MiB/3089msec); 0 zone resets clat (msec): min=232, max=1552, avg=992.94, stdev=682.96 lat (msec): min=232, max=1553, avg=993.32, stdev=683.11 clat percentiles (msec): | 1.00th=[ 232], 5.00th=[ 232], 10.00th=[ 232], 20.00th=[ 232], | 30.00th=[ 232], 40.00th=[ 1200], 50.00th=[ 1200], 60.00th=[ 1200], | 70.00th=[ 1552], 80.00th=[ 1552], 90.00th=[ 1552], 95.00th=[ 1552], | 99.00th=[ 1552], 99.50th=[ 1552], 99.90th=[ 1552], 99.95th=[ 1552], | 99.99th=[ 1552] bw ( KiB/s): min= 8192, max= 8192, per=77.23%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 2000=66.67% cpu : usr=0.00%, sys=4.24%, ctx=47, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=144680: Thu Jul 16 04:24:42 2026 write: IOPS=1, BW=5624KiB/s (5759kB/s)(12.0MiB/2185msec); 0 zone resets clat (msec): min=328, max=1344, avg=720.59, stdev=546.01 lat (msec): min=329, max=1345, avg=721.52, stdev=545.94 clat percentiles (msec): | 1.00th=[ 330], 5.00th=[ 330], 10.00th=[ 330], 20.00th=[ 330], | 30.00th=[ 330], 40.00th=[ 489], 50.00th=[ 489], 60.00th=[ 489], | 70.00th=[ 1351], 80.00th=[ 1351], 90.00th=[ 1351], 95.00th=[ 1351], | 99.00th=[ 1351], 99.50th=[ 1351], 99.90th=[ 1351], 99.95th=[ 1351], | 99.99th=[ 1351] bw ( KiB/s): min= 6491, max= 7846, per=67.58%, avg=7168.50, stdev=958.13, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=66.67%, 2000=33.33% cpu : usr=0.05%, sys=6.36%, ctx=45, 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=7077KiB/s (7247kB/s), 1769KiB/s-5982KiB/s (1812kB/s-6126kB/s), io=16.0MiB (16.8MB), run=2054-2315msec WRITE: bw=10.4MiB/s (10.9MB/s), 3539KiB/s-5624KiB/s (3624kB/s-5759kB/s), io=32.0MiB (33.6MB), run=2185-3089msec