== sanity test 398b: DIO and buffer IO race ============== 09:20:31 (1787318431) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 7.41557 s, 6.8 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=144769: Fri Aug 21 09:23:07 2026 read: IOPS=11, BW=45.5KiB/s (46.6kB/s)(5992KiB/131614msec) clat (usec): min=31, max=231212, avg=42309.78, stdev=29728.52 lat (usec): min=32, max=231213, avg=42311.27, stdev=29728.71 clat percentiles (usec): | 1.00th=[ 49], 5.00th=[ 64], 10.00th=[ 3097], 20.00th=[ 20055], | 30.00th=[ 26608], 40.00th=[ 31589], 50.00th=[ 36963], 60.00th=[ 44303], | 70.00th=[ 52167], 80.00th=[ 62653], 90.00th=[ 78119], 95.00th=[ 96994], | 99.00th=[143655], 99.50th=[154141], 99.90th=[210764], 99.95th=[231736], | 99.99th=[231736] bw ( KiB/s): min= 7, max= 127, per=25.82%, avg=45.69, stdev=21.40, samples=255 iops : min= 1, max= 31, avg=10.77, stdev= 5.37, samples=255 write: IOPS=11, BW=47.8KiB/s (48.0kB/s)(6296KiB/131614msec); 0 zone resets clat (usec): min=836, max=526741, avg=43204.78, stdev=47299.80 lat (usec): min=837, max=526743, avg=43211.03, stdev=47299.56 clat percentiles (usec): | 1.00th=[ 1237], 5.00th=[ 1385], 10.00th=[ 1614], 20.00th=[ 4621], | 30.00th=[ 10814], 40.00th=[ 21365], 50.00th=[ 31589], 60.00th=[ 42730], | 70.00th=[ 54264], 80.00th=[ 71828], 90.00th=[100140], 95.00th=[128451], | 99.00th=[191890], 99.50th=[242222], 99.90th=[522191], 99.95th=[526386], | 99.99th=[526386] bw ( KiB/s): min= 7, max= 103, per=25.56%, avg=47.29, stdev=19.26, samples=259 iops : min= 1, max= 25, avg=11.17, stdev= 4.85, samples=259 lat (usec) : 50=0.55%, 100=3.87%, 250=0.26%, 500=0.07%, 1000=0.13% lat (msec) : 2=6.09%, 4=3.52%, 10=5.44%, 20=9.73%, 50=37.60% lat (msec) : 100=25.52%, 250=7.00%, 500=0.16%, 750=0.07% cpu : usr=0.07%, sys=5.34%, ctx=6479, 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=144770: Fri Aug 21 09:23:07 2026 read: IOPS=10, BW=43.8KiB/s (44.9kB/s)(5940KiB/135488msec) clat (usec): min=17, max=692178, avg=43923.69, stdev=36433.75 lat (usec): min=17, max=692179, avg=43931.46, stdev=36433.94 clat percentiles (usec): | 1.00th=[ 50], 5.00th=[ 63], 10.00th=[ 9896], 20.00th=[ 21103], | 30.00th=[ 27132], 40.00th=[ 32113], 50.00th=[ 37487], 60.00th=[ 43779], | 70.00th=[ 51643], 80.00th=[ 63177], 90.00th=[ 81265], 95.00th=[ 99091], | 99.00th=[149947], 99.50th=[191890], 99.90th=[325059], 99.95th=[692061], | 99.99th=[692061] bw ( KiB/s): min= 5, max= 110, per=25.27%, avg=44.72, stdev=20.24, samples=258 iops : min= 1, max= 27, avg=10.52, stdev= 5.09, samples=258 write: IOPS=11, BW=46.9KiB/s (47.0kB/s)(6348KiB/135488msec); 0 zone resets clat (usec): min=1062, max=585349, avg=44103.92, stdev=50981.14 lat (usec): min=1063, max=585351, avg=44111.33, stdev=50978.86 clat percentiles (usec): | 1.00th=[ 1270], 5.00th=[ 1434], 10.00th=[ 2040], 20.00th=[ 5997], | 30.00th=[ 10290], 40.00th=[ 19268], 50.00th=[ 30540], 60.00th=[ 42730], | 70.00th=[ 55313], 80.00th=[ 72877], 90.00th=[ 98042], 95.00th=[129500], | 99.00th=[221250], 99.50th=[325059], 99.90th=[471860], 99.95th=[583009], | 99.99th=[583009] bw ( KiB/s): min= 7, max= 135, per=25.10%, avg=46.43, stdev=21.69, samples=265 iops : min= 1, max= 33, avg=10.95, stdev= 5.44, samples=265 lat (usec) : 20=0.03%, 50=0.42%, 100=3.68%, 250=0.33%, 750=0.03% lat (msec) : 2=5.14%, 4=2.77%, 10=7.68%, 20=9.47%, 50=37.43% lat (msec) : 100=25.75%, 250=6.80%, 500=0.39%, 750=0.07% cpu : usr=0.07%, sys=5.27%, ctx=6550, 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=144771: Fri Aug 21 09:23:07 2026 read: IOPS=11, BW=45.2KiB/s (46.3kB/s)(6028KiB/133339msec) clat (usec): min=33, max=474653, avg=42904.26, stdev=35462.43 lat (usec): min=33, max=474654, avg=42906.09, stdev=35464.95 clat percentiles (usec): | 1.00th=[ 46], 5.00th=[ 63], 10.00th=[ 1156], 20.00th=[ 19268], | 30.00th=[ 25560], 40.00th=[ 30540], 50.00th=[ 35914], 60.00th=[ 42730], | 70.00th=[ 50594], 80.00th=[ 63701], 90.00th=[ 81265], 95.00th=[100140], | 99.00th=[156238], 99.50th=[217056], 99.90th=[341836], 99.95th=[476054], | 99.99th=[476054] bw ( KiB/s): min= 7, max= 111, per=25.59%, avg=45.30, stdev=20.82, samples=259 iops : min= 1, max= 27, avg=10.67, stdev= 5.26, samples=259 write: IOPS=11, BW=46.9KiB/s (48.1kB/s)(6260KiB/133339msec); 0 zone resets clat (usec): min=1033, max=511581, avg=43765.27, stdev=46753.95 lat (usec): min=1034, max=511582, avg=43769.96, stdev=46752.67 clat percentiles (usec): | 1.00th=[ 1237], 5.00th=[ 1418], 10.00th=[ 1958], 20.00th=[ 5080], | 30.00th=[ 10421], 40.00th=[ 21890], 50.00th=[ 31851], 60.00th=[ 42206], | 70.00th=[ 57410], 80.00th=[ 74974], 90.00th=[102237], 95.00th=[127402], | 99.00th=[196084], 99.50th=[242222], 99.90th=[446694], 99.95th=[509608], | 99.99th=[509608] bw ( KiB/s): min= 7, max= 103, per=25.24%, avg=46.69, stdev=19.38, samples=261 iops : min= 1, max= 25, avg=11.03, stdev= 4.87, samples=261 lat (usec) : 50=0.68%, 100=3.71%, 250=0.26%, 500=0.13%, 750=0.07% lat (usec) : 1000=0.03% lat (msec) : 2=5.37%, 4=3.91%, 10=6.38%, 20=9.11%, 50=37.89% lat (msec) : 100=24.74%, 250=7.42%, 500=0.26%, 750=0.03% cpu : usr=0.08%, sys=5.29%, ctx=6426, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144772: Fri Aug 21 09:23:07 2026 read: IOPS=11, BW=46.1KiB/s (47.2kB/s)(6052KiB/131212msec) clat (usec): min=33, max=375861, avg=42883.56, stdev=32885.36 lat (usec): min=33, max=375862, avg=42886.02, stdev=32885.07 clat percentiles (usec): | 1.00th=[ 42], 5.00th=[ 63], 10.00th=[ 490], 20.00th=[ 20317], | 30.00th=[ 26084], 40.00th=[ 31589], 50.00th=[ 36963], 60.00th=[ 43779], | 70.00th=[ 52691], 80.00th=[ 62129], 90.00th=[ 80217], 95.00th=[101188], | 99.00th=[149947], 99.50th=[217056], 99.90th=[291505], 99.95th=[375391], | 99.99th=[375391] bw ( KiB/s): min= 7, max= 119, per=26.33%, avg=46.60, stdev=20.00, samples=253 iops : min= 1, max= 29, avg=10.99, stdev= 5.03, samples=253 write: IOPS=11, BW=47.5KiB/s (48.7kB/s)(6236KiB/131212msec); 0 zone resets clat (usec): min=986, max=371238, avg=42405.13, stdev=44845.82 lat (usec): min=987, max=371239, avg=42409.17, stdev=44844.27 clat percentiles (usec): | 1.00th=[ 1254], 5.00th=[ 1418], 10.00th=[ 1713], 20.00th=[ 4555], | 30.00th=[ 10159], 40.00th=[ 19268], 50.00th=[ 30016], 60.00th=[ 41157], | 70.00th=[ 55313], 80.00th=[ 72877], 90.00th=[101188], 95.00th=[125305], | 99.00th=[206570], 99.50th=[242222], 99.90th=[316670], 99.95th=[371196], | 99.99th=[371196] bw ( KiB/s): min= 7, max= 119, per=25.66%, avg=47.46, stdev=19.80, samples=256 iops : min= 1, max= 29, avg=11.21, stdev= 4.98, samples=256 lat (usec) : 50=0.85%, 100=3.81%, 250=0.20%, 500=0.10%, 750=0.07% lat (usec) : 1000=0.10% lat (msec) : 2=5.86%, 4=3.65%, 10=6.05%, 20=9.77%, 50=36.23% lat (msec) : 100=25.52%, 250=7.52%, 500=0.29% cpu : usr=0.08%, sys=5.35%, ctx=6497, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=177KiB/s (181kB/s), 43.8KiB/s-46.1KiB/s (44.9kB/s-47.2kB/s), io=23.4MiB (24.6MB), run=131212-135488msec WRITE: bw=186KiB/s (190kB/s), 46.9KiB/s-47.8KiB/s (47.0kB/s-48.0kB/s), io=24.6MiB (25.7MB), run=131212-135488msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144764: Fri Aug 21 09:25:24 2026 read: IOPS=5, BW=22.0KiB/s (22.6kB/s)(5992KiB/272046msec) clat (msec): min=5, max=1000, avg=36.31, stdev=45.43 lat (msec): min=5, max=1000, avg=36.32, stdev=45.43 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 19], 50.00th=[ 22], 60.00th=[ 27], | 70.00th=[ 35], 80.00th=[ 48], 90.00th=[ 81], 95.00th=[ 115], | 99.00th=[ 190], 99.50th=[ 220], 99.90th=[ 514], 99.95th=[ 1003], | 99.99th=[ 1003] bw ( KiB/s): min= 7, max= 111, per=28.93%, avg=25.17, stdev=18.07, samples=460 iops : min= 1, max= 27, avg= 5.66, stdev= 4.58, samples=460 write: IOPS=5, BW=23.1KiB/s (23.7kB/s)(6296KiB/272046msec); 0 zone resets clat (msec): min=34, max=584, avg=137.82, stdev=71.57 lat (msec): min=34, max=584, avg=137.82, stdev=71.57 clat percentiles (msec): | 1.00th=[ 44], 5.00th=[ 58], 10.00th=[ 69], 20.00th=[ 82], | 30.00th=[ 93], 40.00th=[ 108], 50.00th=[ 121], 60.00th=[ 138], | 70.00th=[ 155], 80.00th=[ 186], 90.00th=[ 232], 95.00th=[ 275], | 99.00th=[ 388], 99.50th=[ 430], 99.90th=[ 542], 99.95th=[ 584], | 99.99th=[ 584] bw ( KiB/s): min= 7, max= 63, per=25.15%, avg=22.88, stdev=11.06, samples=529 iops : min= 1, max= 15, avg= 5.08, stdev= 2.83, samples=529 lat (msec) : 10=3.58%, 20=18.13%, 50=18.75%, 100=22.75%, 250=33.01% lat (msec) : 500=3.61%, 750=0.13%, 2000=0.03% cpu : usr=0.05%, sys=1.29%, ctx=5128, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144765: Fri Aug 21 09:25:24 2026 read: IOPS=5, BW=21.8KiB/s (22.3kB/s)(5940KiB/273059msec) clat (msec): min=6, max=1025, avg=35.51, stdev=44.14 lat (msec): min=6, max=1025, avg=35.51, stdev=44.14 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 19], 50.00th=[ 23], 60.00th=[ 27], | 70.00th=[ 33], 80.00th=[ 46], 90.00th=[ 81], 95.00th=[ 108], | 99.00th=[ 188], 99.50th=[ 224], 99.90th=[ 313], 99.95th=[ 1028], | 99.99th=[ 1028] bw ( KiB/s): min= 7, max= 95, per=28.62%, avg=24.90, stdev=16.69, samples=460 iops : min= 1, max= 23, avg= 5.60, stdev= 4.23, samples=460 write: IOPS=5, BW=23.2KiB/s (23.8kB/s)(6348KiB/273059msec); 0 zone resets clat (msec): min=30, max=786, avg=138.41, stdev=71.21 lat (msec): min=30, max=786, avg=138.42, stdev=71.21 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 61], 10.00th=[ 71], 20.00th=[ 84], | 30.00th=[ 96], 40.00th=[ 109], 50.00th=[ 120], 60.00th=[ 136], | 70.00th=[ 155], 80.00th=[ 188], 90.00th=[ 234], 95.00th=[ 268], | 99.00th=[ 368], 99.50th=[ 451], 99.90th=[ 600], 99.95th=[ 785], | 99.99th=[ 785] bw ( KiB/s): min= 7, max= 55, per=25.26%, avg=22.99, stdev=10.86, samples=531 iops : min= 1, max= 13, avg= 5.11, stdev= 2.78, samples=531 lat (msec) : 10=3.71%, 20=17.64%, 50=19.14%, 100=22.07%, 250=33.50% lat (msec) : 500=3.78%, 750=0.10%, 1000=0.03%, 2000=0.03% cpu : usr=0.04%, sys=1.32%, ctx=5222, 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=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=144766: Fri Aug 21 09:25:24 2026 read: IOPS=5, BW=22.0KiB/s (22.5kB/s)(6028KiB/273981msec) clat (msec): min=5, max=516, avg=37.64, stdev=39.27 lat (msec): min=5, max=516, avg=37.65, stdev=39.27 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 24], 60.00th=[ 29], | 70.00th=[ 37], 80.00th=[ 55], 90.00th=[ 87], 95.00th=[ 109], | 99.00th=[ 186], 99.50th=[ 249], 99.90th=[ 334], 99.95th=[ 518], | 99.99th=[ 518] bw ( KiB/s): min= 7, max= 120, per=27.74%, avg=24.13, stdev=16.42, samples=482 iops : min= 1, max= 30, avg= 5.40, stdev= 4.15, samples=482 write: IOPS=5, BW=22.8KiB/s (23.4kB/s)(6260KiB/273981msec); 0 zone resets clat (msec): min=31, max=1227, avg=138.37, stdev=73.95 lat (msec): min=31, max=1227, avg=138.37, stdev=73.95 clat percentiles (msec): | 1.00th=[ 46], 5.00th=[ 61], 10.00th=[ 71], 20.00th=[ 84], | 30.00th=[ 96], 40.00th=[ 109], 50.00th=[ 123], 60.00th=[ 138], | 70.00th=[ 157], 80.00th=[ 182], 90.00th=[ 228], 95.00th=[ 271], | 99.00th=[ 376], 99.50th=[ 426], 99.90th=[ 776], 99.95th=[ 1234], | 99.99th=[ 1234] bw ( KiB/s): min= 7, max= 56, per=25.11%, avg=22.85, stdev=10.92, samples=527 iops : min= 1, max= 14, avg= 5.07, stdev= 2.80, samples=527 lat (msec) : 10=3.29%, 20=16.83%, 50=19.21%, 100=23.44%, 250=33.56% lat (msec) : 500=3.55%, 750=0.07%, 1000=0.03%, 2000=0.03% cpu : usr=0.04%, sys=1.27%, ctx=5009, 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=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=144767: Fri Aug 21 09:25:24 2026 read: IOPS=5, BW=22.2KiB/s (22.8kB/s)(6052KiB/272226msec) clat (msec): min=5, max=291, avg=34.67, stdev=34.59 lat (msec): min=5, max=291, avg=34.68, stdev=34.59 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 19], 50.00th=[ 22], 60.00th=[ 27], | 70.00th=[ 34], 80.00th=[ 48], 90.00th=[ 78], 95.00th=[ 106], | 99.00th=[ 180], 99.50th=[ 192], 99.90th=[ 279], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 7, max= 110, per=29.37%, avg=25.55, stdev=17.45, samples=457 iops : min= 1, max= 27, avg= 5.75, stdev= 4.41, samples=457 write: IOPS=5, BW=22.9KiB/s (23.5kB/s)(6236KiB/272226msec); 0 zone resets clat (msec): min=36, max=1078, avg=140.50, stdev=76.91 lat (msec): min=36, max=1078, avg=140.51, stdev=76.91 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 61], 10.00th=[ 69], 20.00th=[ 84], | 30.00th=[ 95], 40.00th=[ 109], 50.00th=[ 123], 60.00th=[ 140], | 70.00th=[ 159], 80.00th=[ 186], 90.00th=[ 232], 95.00th=[ 284], | 99.00th=[ 397], 99.50th=[ 477], 99.90th=[ 600], 99.95th=[ 1083], | 99.99th=[ 1083] bw ( KiB/s): min= 7, max= 63, per=25.34%, avg=23.06, stdev=10.56, samples=520 iops : min= 1, max= 15, avg= 5.13, stdev= 2.72, samples=520 lat (msec) : 10=4.10%, 20=18.91%, 50=17.51%, 100=23.24%, 250=31.93% lat (msec) : 500=4.07%, 750=0.20%, 2000=0.03% cpu : usr=0.04%, sys=1.35%, ctx=5164, 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=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=87.6KiB/s (89.7kB/s), 21.8KiB/s-22.2KiB/s (22.3kB/s-22.8kB/s), io=23.4MiB (24.6MB), run=272046-273981msec WRITE: bw=91.8KiB/s (93.0kB/s), 22.8KiB/s-23.2KiB/s (23.4kB/s-23.8kB/s), io=24.6MiB (25.7MB), run=272046-273981msec 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=144825: Fri Aug 21 09:26:02 2026 read: IOPS=15, BW=243KiB/s (248kB/s)(5920KiB/24410msec) clat (usec): min=39, max=333958, avg=34496.93, stdev=33665.36 lat (usec): min=39, max=333959, avg=34499.67, stdev=33664.75 clat percentiles (usec): | 1.00th=[ 44], 5.00th=[ 53], 10.00th=[ 60], 20.00th=[ 74], | 30.00th=[ 17171], 40.00th=[ 25822], 50.00th=[ 31065], 60.00th=[ 38536], | 70.00th=[ 44827], 80.00th=[ 54264], 90.00th=[ 65799], 95.00th=[ 83362], | 99.00th=[154141], 99.50th=[168821], 99.90th=[333448], 99.95th=[333448], | 99.99th=[333448] bw ( KiB/s): min= 93, max= 527, per=25.12%, avg=241.11, stdev=90.15, samples=47 iops : min= 5, max= 32, avg=14.34, stdev= 5.63, samples=47 write: IOPS=16, BW=261KiB/s (267kB/s)(6368KiB/24410msec); 0 zone resets clat (usec): min=1254, max=152010, avg=28583.91, stdev=31550.90 lat (usec): min=1255, max=152012, avg=28585.93, stdev=31551.00 clat percentiles (usec): | 1.00th=[ 1631], 5.00th=[ 1811], 10.00th=[ 2212], 20.00th=[ 4047], | 30.00th=[ 7373], 40.00th=[ 10028], 50.00th=[ 15270], 60.00th=[ 23462], | 70.00th=[ 36963], 80.00th=[ 49546], 90.00th=[ 71828], 95.00th=[ 99091], | 99.00th=[139461], 99.50th=[141558], 99.90th=[152044], 99.95th=[152044], | 99.99th=[152044] bw ( KiB/s): min= 92, max= 466, per=25.89%, avg=261.51, stdev=105.60, samples=47 iops : min= 5, max= 29, avg=15.64, stdev= 6.66, samples=47 lat (usec) : 50=1.69%, 100=10.29%, 250=0.13%, 500=0.13% lat (msec) : 2=4.82%, 4=5.60%, 10=10.94%, 20=11.07%, 50=32.94% lat (msec) : 100=18.36%, 250=3.91%, 500=0.13% cpu : usr=0.09%, sys=6.48%, ctx=1359, 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=144826: Fri Aug 21 09:26:02 2026 read: IOPS=14, BW=236KiB/s (241kB/s)(5744KiB/24360msec) clat (usec): min=38, max=372232, avg=36419.75, stdev=36827.75 lat (usec): min=38, max=372233, avg=36422.27, stdev=36829.00 clat percentiles (usec): | 1.00th=[ 40], 5.00th=[ 53], 10.00th=[ 61], 20.00th=[ 100], | 30.00th=[ 20317], 40.00th=[ 25035], 50.00th=[ 31851], 60.00th=[ 39060], | 70.00th=[ 45351], 80.00th=[ 55837], 90.00th=[ 70779], 95.00th=[ 90702], | 99.00th=[183501], 99.50th=[212861], 99.90th=[371196], 99.95th=[371196], | 99.99th=[371196] bw ( KiB/s): min= 63, max= 476, per=24.60%, avg=236.19, stdev=94.74, samples=47 iops : min= 3, max= 29, avg=14.04, stdev= 5.94, samples=47 write: IOPS=16, BW=269KiB/s (275kB/s)(6544KiB/24360msec); 0 zone resets clat (usec): min=1223, max=127531, avg=27400.33, stdev=27946.65 lat (usec): min=1225, max=127534, avg=27402.90, stdev=27946.90 clat percentiles (usec): | 1.00th=[ 1631], 5.00th=[ 1909], 10.00th=[ 2769], 20.00th=[ 4883], | 30.00th=[ 6652], 40.00th=[ 10159], 50.00th=[ 17171], 60.00th=[ 24773], | 70.00th=[ 34866], 80.00th=[ 49546], 90.00th=[ 69731], 95.00th=[ 85459], | 99.00th=[115868], 99.50th=[120062], 99.90th=[127402], 99.95th=[127402], | 99.99th=[127402] bw ( KiB/s): min= 61, max= 604, per=26.53%, avg=267.91, stdev=119.28, samples=47 iops : min= 3, max= 37, avg=16.04, stdev= 7.51, samples=47 lat (usec) : 50=1.69%, 100=7.68%, 250=0.65%, 500=0.13%, 750=0.13% lat (msec) : 2=4.04%, 4=5.21%, 10=11.98%, 20=10.94%, 50=35.81% lat (msec) : 100=18.62%, 250=2.99%, 500=0.13% cpu : usr=0.09%, sys=6.69%, ctx=1381, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144827: Fri Aug 21 09:26:02 2026 read: IOPS=15, BW=251KiB/s (257kB/s)(6256KiB/24930msec) clat (usec): min=31, max=230674, avg=35525.07, stdev=30479.56 lat (usec): min=31, max=230676, avg=35527.11, stdev=30479.97 clat percentiles (usec): | 1.00th=[ 41], 5.00th=[ 53], 10.00th=[ 65], 20.00th=[ 79], | 30.00th=[ 20579], 40.00th=[ 26084], 50.00th=[ 32113], 60.00th=[ 39584], | 70.00th=[ 46924], 80.00th=[ 55837], 90.00th=[ 68682], 95.00th=[ 85459], | 99.00th=[135267], 99.50th=[170918], 99.90th=[229639], 99.95th=[229639], | 99.99th=[229639] bw ( KiB/s): min= 94, max= 445, per=26.17%, avg=251.27, stdev=93.68, samples=48 iops : min= 5, max= 27, avg=14.98, stdev= 5.91, samples=48 write: IOPS=15, BW=242KiB/s (248kB/s)(6032KiB/24930msec); 0 zone resets clat (usec): min=1332, max=212471, avg=28698.76, stdev=34138.61 lat (usec): min=1333, max=212473, avg=28700.86, stdev=34138.68 clat percentiles (usec): | 1.00th=[ 1549], 5.00th=[ 1975], 10.00th=[ 2573], 20.00th=[ 4080], | 30.00th=[ 6521], 40.00th=[ 11338], 50.00th=[ 15533], 60.00th=[ 21627], | 70.00th=[ 31589], 80.00th=[ 46400], 90.00th=[ 74974], 95.00th=[103285], | 99.00th=[164627], 99.50th=[185598], 99.90th=[212861], 99.95th=[212861], | 99.99th=[212861] bw ( KiB/s): min= 63, max= 572, per=23.57%, avg=238.04, stdev=102.56, samples=48 iops : min= 3, max= 35, avg=14.15, stdev= 6.41, samples=48 lat (usec) : 50=2.08%, 100=8.85%, 250=0.52% lat (msec) : 2=2.47%, 4=7.03%, 10=8.98%, 20=13.02%, 50=35.16% lat (msec) : 100=17.19%, 250=4.69% cpu : usr=0.08%, sys=6.52%, ctx=1411, 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=144828: Fri Aug 21 09:26:02 2026 read: IOPS=15, BW=250KiB/s (256kB/s)(6032KiB/24113msec) clat (usec): min=35, max=234249, avg=34020.02, stdev=29741.73 lat (usec): min=35, max=234250, avg=34021.14, stdev=29741.77 clat percentiles (usec): | 1.00th=[ 40], 5.00th=[ 56], 10.00th=[ 60], 20.00th=[ 74], | 30.00th=[ 21103], 40.00th=[ 26346], 50.00th=[ 31851], 60.00th=[ 37487], | 70.00th=[ 44303], 80.00th=[ 54264], 90.00th=[ 68682], 95.00th=[ 83362], | 99.00th=[119014], 99.50th=[200279], 99.90th=[233833], 99.95th=[233833], | 99.99th=[233833] bw ( KiB/s): min= 31, max= 476, per=25.96%, avg=249.19, stdev=107.21, samples=47 iops : min= 1, max= 29, avg=14.85, stdev= 6.76, samples=47 write: IOPS=16, BW=259KiB/s (266kB/s)(6256KiB/24113msec); 0 zone resets clat (usec): min=1303, max=225621, avg=27968.34, stdev=32455.44 lat (usec): min=1304, max=225623, avg=28020.99, stdev=32477.82 clat percentiles (usec): | 1.00th=[ 1549], 5.00th=[ 1860], 10.00th=[ 2343], 20.00th=[ 4178], | 30.00th=[ 6521], 40.00th=[ 9372], 50.00th=[ 12649], 60.00th=[ 24249], | 70.00th=[ 34866], 80.00th=[ 49546], 90.00th=[ 69731], 95.00th=[ 90702], | 99.00th=[147850], 99.50th=[183501], 99.90th=[225444], 99.95th=[225444], | 99.99th=[225444] bw ( KiB/s): min= 125, max= 533, per=25.64%, avg=258.91, stdev=92.22, samples=47 iops : min= 7, max= 33, avg=15.49, stdev= 5.82, samples=47 lat (usec) : 50=1.17%, 100=10.03%, 250=0.13%, 500=0.13% lat (msec) : 2=3.65%, 4=6.51%, 10=11.72%, 20=10.03%, 50=34.90% lat (msec) : 100=18.49%, 250=3.26% cpu : usr=0.12%, sys=6.69%, ctx=1353, 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=961KiB/s (984kB/s), 236KiB/s-251KiB/s (241kB/s-257kB/s), io=23.4MiB (24.5MB), run=24113-24930msec WRITE: bw=1011KiB/s (1035kB/s), 242KiB/s-269KiB/s (248kB/s-275kB/s), io=24.6MiB (25.8MB), run=24113-24930msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144831: Fri Aug 21 09:26:42 2026 read: IOPS=5, BW=95.2KiB/s (97.5kB/s)(5920KiB/62161msec) clat (msec): min=5, max=374, avg=36.08, stdev=34.45 lat (msec): min=5, max=374, avg=36.08, stdev=34.45 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 24], 50.00th=[ 27], 60.00th=[ 32], | 70.00th=[ 38], 80.00th=[ 48], 90.00th=[ 65], 95.00th=[ 97], | 99.00th=[ 178], 99.50th=[ 230], 99.90th=[ 376], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 31, max= 383, per=25.99%, avg=99.27, stdev=62.56, samples=116 iops : min= 1, max= 23, avg= 5.47, stdev= 3.93, samples=116 write: IOPS=6, BW=102KiB/s (105kB/s)(6368KiB/62161msec); 0 zone resets clat (msec): min=34, max=393, avg=122.38, stdev=54.18 lat (msec): min=34, max=393, avg=122.38, stdev=54.18 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 64], 10.00th=[ 71], 20.00th=[ 82], | 30.00th=[ 91], 40.00th=[ 100], 50.00th=[ 110], 60.00th=[ 121], | 70.00th=[ 136], 80.00th=[ 157], 90.00th=[ 186], 95.00th=[ 220], | 99.00th=[ 355], 99.50th=[ 388], 99.90th=[ 393], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 21, max= 192, per=25.82%, avg=103.80, stdev=41.53, samples=120 iops : min= 1, max= 12, avg= 5.77, stdev= 2.66, samples=120 lat (msec) : 10=3.26%, 20=12.63%, 50=24.22%, 100=27.34%, 250=30.73% lat (msec) : 500=1.82% cpu : usr=0.03%, sys=1.53%, ctx=1352, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144832: Fri Aug 21 09:26:42 2026 read: IOPS=5, BW=91.7KiB/s (93.9kB/s)(5744KiB/62665msec) clat (msec): min=6, max=239, avg=35.50, stdev=32.58 lat (msec): min=6, max=239, avg=35.50, stdev=32.58 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 17], 40.00th=[ 21], 50.00th=[ 24], 60.00th=[ 29], | 70.00th=[ 38], 80.00th=[ 49], 90.00th=[ 75], 95.00th=[ 103], | 99.00th=[ 174], 99.50th=[ 184], 99.90th=[ 241], 99.95th=[ 241], | 99.99th=[ 241] bw ( KiB/s): min= 21, max= 445, per=26.22%, avg=100.14, stdev=70.42, samples=112 iops : min= 1, max= 27, avg= 5.55, stdev= 4.39, samples=112 write: IOPS=6, BW=104KiB/s (107kB/s)(6544KiB/62665msec); 0 zone resets clat (msec): min=41, max=343, avg=121.78, stdev=51.93 lat (msec): min=41, max=343, avg=121.78, stdev=51.93 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 61], 10.00th=[ 70], 20.00th=[ 81], | 30.00th=[ 88], 40.00th=[ 101], 50.00th=[ 111], 60.00th=[ 123], | 70.00th=[ 138], 80.00th=[ 155], 90.00th=[ 194], 95.00th=[ 226], | 99.00th=[ 288], 99.50th=[ 309], 99.90th=[ 347], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 30, max= 220, per=26.02%, avg=104.61, stdev=40.41, samples=122 iops : min= 1, max= 13, avg= 5.83, stdev= 2.61, samples=122 lat (msec) : 10=2.99%, 20=15.49%, 50=20.18%, 100=26.56%, 250=32.94% lat (msec) : 500=1.82% cpu : usr=0.04%, sys=1.60%, ctx=1415, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144833: Fri Aug 21 09:26:42 2026 read: IOPS=6, BW=104KiB/s (106kB/s)(6256KiB/60270msec) clat (msec): min=6, max=229, avg=33.35, stdev=30.26 lat (msec): min=6, max=229, avg=33.35, stdev=30.26 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 22], 50.00th=[ 24], 60.00th=[ 29], | 70.00th=[ 34], 80.00th=[ 43], 90.00th=[ 60], 95.00th=[ 92], | 99.00th=[ 178], 99.50th=[ 218], 99.90th=[ 230], 99.95th=[ 230], | 99.99th=[ 230] bw ( KiB/s): min= 31, max= 317, per=29.36%, avg=112.14, stdev=67.08, samples=110 iops : min= 1, max= 19, avg= 6.31, stdev= 4.19, samples=110 write: IOPS=6, BW=100KiB/s (102kB/s)(6032KiB/60270msec); 0 zone resets clat (msec): min=31, max=462, avg=124.99, stdev=55.76 lat (msec): min=31, max=462, avg=125.00, stdev=55.76 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 63], 10.00th=[ 71], 20.00th=[ 82], | 30.00th=[ 91], 40.00th=[ 101], 50.00th=[ 113], 60.00th=[ 126], | 70.00th=[ 142], 80.00th=[ 161], 90.00th=[ 192], 95.00th=[ 232], | 99.00th=[ 321], 99.50th=[ 355], 99.90th=[ 464], 99.95th=[ 464], | 99.99th=[ 464] bw ( KiB/s): min= 30, max= 192, per=25.26%, avg=101.54, stdev=36.30, samples=115 iops : min= 1, max= 12, avg= 5.63, stdev= 2.37, samples=115 lat (msec) : 10=2.47%, 20=15.36%, 50=26.43%, 100=23.83%, 250=30.08% lat (msec) : 500=1.82% cpu : usr=0.05%, sys=1.59%, ctx=1400, 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=144834: Fri Aug 21 09:26:42 2026 read: IOPS=6, BW=97.8KiB/s (100kB/s)(6032KiB/61700msec) clat (msec): min=7, max=361, avg=36.01, stdev=33.19 lat (msec): min=7, max=361, avg=36.02, stdev=33.19 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 24], 50.00th=[ 27], 60.00th=[ 31], | 70.00th=[ 37], 80.00th=[ 48], 90.00th=[ 64], 95.00th=[ 89], | 99.00th=[ 215], 99.50th=[ 228], 99.90th=[ 363], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 30, max= 288, per=27.61%, avg=105.48, stdev=59.42, samples=111 iops : min= 1, max= 18, avg= 5.88, stdev= 3.82, samples=111 write: IOPS=6, BW=101KiB/s (104kB/s)(6256KiB/61700msec); 0 zone resets clat (msec): min=37, max=385, avg=122.81, stdev=55.15 lat (msec): min=37, max=385, avg=122.82, stdev=55.15 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 60], 10.00th=[ 68], 20.00th=[ 82], | 30.00th=[ 90], 40.00th=[ 101], 50.00th=[ 111], 60.00th=[ 122], | 70.00th=[ 134], 80.00th=[ 150], 90.00th=[ 207], 95.00th=[ 236], | 99.00th=[ 292], 99.50th=[ 376], 99.90th=[ 384], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 30, max= 222, per=25.35%, avg=101.90, stdev=39.98, samples=120 iops : min= 1, max= 13, avg= 5.65, stdev= 2.58, samples=120 lat (msec) : 10=1.56%, 20=11.72%, 50=27.60%, 100=26.43%, 250=30.60% lat (msec) : 500=2.08% cpu : usr=0.04%, sys=1.55%, ctx=1405, 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=382KiB/s (391kB/s), 91.7KiB/s-104KiB/s (93.9kB/s-106kB/s), io=23.4MiB (24.5MB), run=60270-62665msec WRITE: bw=402KiB/s (412kB/s), 100KiB/s-104KiB/s (102kB/s-107kB/s), io=24.6MiB (25.8MB), run=60270-62665msec 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=144850: Fri Aug 21 09:26:56 2026 read: IOPS=2, BW=2298KiB/s (2353kB/s)(7168KiB/3119msec) clat (usec): min=877, max=430123, avg=235894.32, stdev=143850.39 lat (usec): min=879, max=430124, avg=235895.78, stdev=143850.48 clat percentiles (usec): | 1.00th=[ 881], 5.00th=[ 881], 10.00th=[ 881], 20.00th=[110625], | 30.00th=[204473], 40.00th=[204473], 50.00th=[270533], 60.00th=[316670], | 70.00th=[316670], 80.00th=[320865], 90.00th=[429917], 95.00th=[429917], | 99.00th=[429917], 99.50th=[429917], 99.90th=[429917], 99.95th=[429917], | 99.99th=[429917] bw ( KiB/s): min= 1703, max= 4047, per=51.37%, avg=2346.80, stdev=959.21, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 write: IOPS=1, BW=1642KiB/s (1681kB/s)(5120KiB/3119msec); 0 zone resets clat (msec): min=99, max=515, avg=258.95, stdev=163.26 lat (msec): min=99, max=515, avg=259.03, stdev=163.28 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 101], 10.00th=[ 101], 20.00th=[ 101], | 30.00th=[ 138], 40.00th=[ 138], 50.00th=[ 257], 60.00th=[ 257], | 70.00th=[ 284], 80.00th=[ 284], 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= 1961, max= 3968, per=41.45%, avg=2650.67, stdev=1141.27, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (usec) : 1000=8.33% lat (msec) : 100=8.33%, 250=25.00%, 500=50.00%, 750=8.33% cpu : usr=0.03%, sys=16.45%, ctx=240, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144851: Fri Aug 21 09:26:56 2026 read: IOPS=0, BW=457KiB/s (468kB/s)(2048KiB/4483msec) clat (msec): min=3, max=281, avg=142.83, stdev=196.45 lat (msec): min=3, max=281, avg=142.83, stdev=196.45 clat percentiles (msec): | 1.00th=[ 4], 5.00th=[ 4], 10.00th=[ 4], 20.00th=[ 4], | 30.00th=[ 4], 40.00th=[ 4], 50.00th=[ 4], 60.00th=[ 284], | 70.00th=[ 284], 80.00th=[ 284], 90.00th=[ 284], 95.00th=[ 284], | 99.00th=[ 284], 99.50th=[ 284], 99.90th=[ 284], 99.95th=[ 284], | 99.99th=[ 284] bw ( KiB/s): min= 2003, max= 2011, per=43.94%, avg=2007.00, stdev= 5.66, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2284KiB/s (2339kB/s)(10.0MiB/4483msec); 0 zone resets clat (msec): min=105, max=1006, avg=404.49, stdev=278.91 lat (msec): min=105, max=1006, avg=404.58, stdev=278.92 clat percentiles (msec): | 1.00th=[ 106], 5.00th=[ 106], 10.00th=[ 106], 20.00th=[ 128], | 30.00th=[ 228], 40.00th=[ 275], 50.00th=[ 296], 60.00th=[ 305], | 70.00th=[ 451], 80.00th=[ 609], 90.00th=[ 642], 95.00th=[ 1003], | 99.00th=[ 1003], 99.50th=[ 1003], 99.90th=[ 1003], 99.95th=[ 1003], | 99.99th=[ 1003] bw ( KiB/s): min= 1984, max= 5111, per=53.99%, avg=3452.40, stdev=1380.15, samples=5 iops : min= 1, max= 4, avg= 2.80, stdev= 1.30, samples=5 lat (msec) : 4=8.33%, 250=25.00%, 500=41.67%, 750=16.67%, 2000=8.33% cpu : usr=0.00%, sys=11.69%, ctx=192, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144852: Fri Aug 21 09:26:56 2026 read: IOPS=1, BW=1812KiB/s (1856kB/s)(6144KiB/3390msec) clat (usec): min=418, max=559343, avg=141099.97, stdev=234330.16 lat (usec): min=419, max=559344, avg=141101.11, stdev=234330.09 clat percentiles (usec): | 1.00th=[ 420], 5.00th=[ 420], 10.00th=[ 420], 20.00th=[ 429], | 30.00th=[ 429], 40.00th=[ 693], 50.00th=[ 693], 60.00th=[ 857], | 70.00th=[283116], 80.00th=[283116], 90.00th=[557843], 95.00th=[557843], | 99.00th=[557843], 99.50th=[557843], 99.90th=[557843], 99.95th=[557843], | 99.99th=[557843] bw ( KiB/s): min= 2011, max= 7937, per=100.00%, avg=4974.00, stdev=4190.31, samples=2 iops : min= 1, max= 7, avg= 4.00, stdev= 4.24, samples=2 write: IOPS=1, BW=1812KiB/s (1856kB/s)(6144KiB/3390msec); 0 zone resets clat (msec): min=86, max=1054, avg=416.55, stdev=374.78 lat (msec): min=86, max=1054, avg=416.60, stdev=374.79 clat percentiles (msec): | 1.00th=[ 87], 5.00th=[ 87], 10.00th=[ 87], 20.00th=[ 148], | 30.00th=[ 148], 40.00th=[ 222], 50.00th=[ 222], 60.00th=[ 317], | 70.00th=[ 676], 80.00th=[ 676], 90.00th=[ 1053], 95.00th=[ 1053], | 99.00th=[ 1053], 99.50th=[ 1053], 99.90th=[ 1053], 99.95th=[ 1053], | 99.99th=[ 1053] bw ( KiB/s): min= 1703, max= 4055, per=45.99%, avg=2941.25, stdev=1272.82, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 lat (usec) : 500=16.67%, 750=8.33%, 1000=8.33% lat (msec) : 100=8.33%, 250=16.67%, 500=16.67%, 750=16.67%, 2000=8.33% cpu : usr=0.00%, sys=9.97%, ctx=88, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144853: Fri Aug 21 09:26:56 2026 read: IOPS=1, BW=1626KiB/s (1665kB/s)(5120KiB/3149msec) clat (usec): min=485, max=254049, avg=101578.11, stdev=121643.40 lat (usec): min=486, max=254051, avg=101579.38, stdev=121643.48 clat percentiles (usec): | 1.00th=[ 486], 5.00th=[ 486], 10.00th=[ 486], 20.00th=[ 486], | 30.00th=[ 515], 40.00th=[ 515], 50.00th=[ 42206], 60.00th=[ 42206], | 70.00th=[210764], 80.00th=[210764], 90.00th=[254804], 95.00th=[254804], | 99.00th=[254804], 99.50th=[254804], 99.90th=[254804], 99.95th=[254804], | 99.99th=[254804] bw ( KiB/s): min= 1965, max= 5885, per=85.92%, avg=3925.00, stdev=2771.86, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=2, BW=2276KiB/s (2331kB/s)(7168KiB/3149msec); 0 zone resets clat (msec): min=138, max=773, avg=368.38, stdev=223.62 lat (msec): min=138, max=773, avg=368.46, stdev=223.61 clat percentiles (msec): | 1.00th=[ 138], 5.00th=[ 138], 10.00th=[ 138], 20.00th=[ 171], | 30.00th=[ 275], 40.00th=[ 275], 50.00th=[ 288], 60.00th=[ 401], | 70.00th=[ 401], 80.00th=[ 535], 90.00th=[ 776], 95.00th=[ 776], | 99.00th=[ 776], 99.50th=[ 776], 99.90th=[ 776], 99.95th=[ 776], | 99.99th=[ 776] bw ( KiB/s): min= 1467, max= 3953, per=43.36%, avg=2772.75, stdev=1354.22, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 lat (usec) : 500=8.33%, 750=8.33% lat (msec) : 50=8.33%, 250=25.00%, 500=33.33%, 750=8.33%, 1000=8.33% cpu : usr=0.00%, sys=14.29%, ctx=136, 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=4568KiB/s (4678kB/s), 457KiB/s-2298KiB/s (468kB/s-2353kB/s), io=20.0MiB (20.0MB), run=3119-4483msec WRITE: bw=6396KiB/s (6549kB/s), 1642KiB/s-2284KiB/s (1681kB/s-2339kB/s), io=28.0MiB (29.4MB), run=3119-4483msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144855: Fri Aug 21 09:26:57 2026 read: IOPS=1, BW=1596KiB/s (1634kB/s)(7168KiB/4491msec) clat (msec): min=115, max=1028, avg=300.28, stdev=327.01 lat (msec): min=115, max=1028, avg=300.28, stdev=327.01 clat percentiles (msec): | 1.00th=[ 116], 5.00th=[ 116], 10.00th=[ 116], 20.00th=[ 128], | 30.00th=[ 146], 40.00th=[ 146], 50.00th=[ 157], 60.00th=[ 249], | 70.00th=[ 249], 80.00th=[ 279], 90.00th=[ 1028], 95.00th=[ 1028], | 99.00th=[ 1028], 99.50th=[ 1028], 99.90th=[ 1028], 99.95th=[ 1028], | 99.99th=[ 1028] bw ( KiB/s): min= 1572, max= 4007, per=55.40%, avg=2314.20, stdev=964.52, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 write: IOPS=1, BW=1140KiB/s (1167kB/s)(5120KiB/4491msec); 0 zone resets clat (msec): min=294, max=737, avg=446.89, stdev=178.48 lat (msec): min=294, max=737, avg=446.99, stdev=178.48 clat percentiles (msec): | 1.00th=[ 296], 5.00th=[ 296], 10.00th=[ 296], 20.00th=[ 296], | 30.00th=[ 309], 40.00th=[ 309], 50.00th=[ 422], 60.00th=[ 422], | 70.00th=[ 472], 80.00th=[ 472], 90.00th=[ 735], 95.00th=[ 735], | 99.00th=[ 735], 99.50th=[ 735], 99.90th=[ 735], 99.95th=[ 735], | 99.99th=[ 735] bw ( KiB/s): min= 1950, max= 2035, per=34.39%, avg=2010.75, stdev=40.63, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 lat (msec) : 250=41.67%, 500=41.67%, 750=8.33%, 2000=8.33% cpu : usr=0.00%, sys=3.92%, ctx=76, 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=144856: Fri Aug 21 09:26:57 2026 read: IOPS=0, BW=418KiB/s (428kB/s)(2048KiB/4903msec) clat (msec): min=71, max=101, avg=86.52, stdev=21.30 lat (msec): min=71, max=101, avg=86.52, stdev=21.30 clat percentiles (msec): | 1.00th=[ 72], 5.00th=[ 72], 10.00th=[ 72], 20.00th=[ 72], | 30.00th=[ 72], 40.00th=[ 72], 50.00th=[ 72], 60.00th=[ 102], | 70.00th=[ 102], 80.00th=[ 102], 90.00th=[ 102], 95.00th=[ 102], | 99.00th=[ 102], 99.50th=[ 102], 99.90th=[ 102], 99.95th=[ 102], | 99.99th=[ 102] bw ( KiB/s): min= 1686, max= 2031, per=44.49%, avg=1858.50, stdev=243.95, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2089KiB/s (2139kB/s)(10.0MiB/4903msec); 0 zone resets clat (msec): min=87, max=1390, avg=460.99, stdev=409.66 lat (msec): min=87, max=1390, avg=461.13, stdev=409.63 clat percentiles (msec): | 1.00th=[ 88], 5.00th=[ 88], 10.00th=[ 88], 20.00th=[ 148], | 30.00th=[ 163], 40.00th=[ 178], 50.00th=[ 268], 60.00th=[ 300], | 70.00th=[ 617], 80.00th=[ 659], 90.00th=[ 793], 95.00th=[ 1385], | 99.00th=[ 1385], 99.50th=[ 1385], 99.90th=[ 1385], 99.95th=[ 1385], | 99.99th=[ 1385] bw ( KiB/s): min= 2003, max= 4063, per=46.16%, avg=2699.00, stdev=1053.52, samples=6 iops : min= 1, max= 3, avg= 1.67, stdev= 1.03, samples=6 lat (msec) : 100=16.67%, 250=33.33%, 500=16.67%, 750=16.67%, 1000=8.33% lat (msec) : 2000=8.33% cpu : usr=0.00%, sys=3.49%, ctx=68, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144857: Fri Aug 21 09:26:57 2026 read: IOPS=1, BW=1476KiB/s (1511kB/s)(6144KiB/4164msec) clat (msec): min=47, max=399, avg=190.64, stdev=141.67 lat (msec): min=47, max=399, avg=190.64, stdev=141.67 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 48], 10.00th=[ 48], 20.00th=[ 90], | 30.00th=[ 90], 40.00th=[ 103], 50.00th=[ 103], 60.00th=[ 182], | 70.00th=[ 326], 80.00th=[ 326], 90.00th=[ 401], 95.00th=[ 401], | 99.00th=[ 401], 99.50th=[ 401], 99.90th=[ 401], 99.95th=[ 401], | 99.99th=[ 401] bw ( KiB/s): min= 1950, max= 4071, per=60.20%, avg=2514.75, stdev=1038.03, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1476KiB/s (1511kB/s)(6144KiB/4164msec); 0 zone resets clat (msec): min=190, max=1007, avg=490.28, stdev=288.60 lat (msec): min=190, max=1007, avg=490.37, stdev=288.58 clat percentiles (msec): | 1.00th=[ 190], 5.00th=[ 190], 10.00th=[ 190], 20.00th=[ 347], | 30.00th=[ 347], 40.00th=[ 368], 50.00th=[ 368], 60.00th=[ 414], | 70.00th=[ 617], 80.00th=[ 617], 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= 1762, max= 2035, per=33.57%, avg=1963.00, stdev=104.47, samples=6 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=6 lat (msec) : 50=8.33%, 100=8.33%, 250=25.00%, 500=41.67%, 750=8.33% lat (msec) : 2000=8.33% cpu : usr=0.02%, sys=5.07%, ctx=71, 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=144858: Fri Aug 21 09:26:57 2026 read: IOPS=1, BW=1088KiB/s (1114kB/s)(5120KiB/4706msec) clat (msec): min=74, max=145, avg=111.26, stdev=27.65 lat (msec): min=74, max=145, avg=111.26, stdev=27.65 clat percentiles (msec): | 1.00th=[ 74], 5.00th=[ 74], 10.00th=[ 74], 20.00th=[ 74], | 30.00th=[ 97], 40.00th=[ 97], 50.00th=[ 111], 60.00th=[ 111], | 70.00th=[ 129], 80.00th=[ 129], 90.00th=[ 146], 95.00th=[ 146], | 99.00th=[ 146], 99.50th=[ 146], 99.90th=[ 146], 99.95th=[ 146], | 99.99th=[ 146] bw ( KiB/s): min= 4055, max= 4071, per=97.27%, avg=4063.00, stdev=11.31, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1523KiB/s (1560kB/s)(7168KiB/4706msec); 0 zone resets clat (msec): min=237, max=1300, avg=583.94, stdev=356.43 lat (msec): min=239, max=1300, avg=584.41, stdev=356.00 clat percentiles (msec): | 1.00th=[ 239], 5.00th=[ 239], 10.00th=[ 239], 20.00th=[ 305], | 30.00th=[ 388], 40.00th=[ 388], 50.00th=[ 584], 60.00th=[ 584], | 70.00th=[ 584], 80.00th=[ 693], 90.00th=[ 1301], 95.00th=[ 1301], | 99.00th=[ 1301], 99.50th=[ 1301], 99.90th=[ 1301], 99.95th=[ 1301], | 99.99th=[ 1301] bw ( KiB/s): min= 1831, max= 4055, per=39.66%, avg=2318.83, stdev=853.99, samples=6 iops : min= 1, max= 3, avg= 1.33, stdev= 0.82, samples=6 lat (msec) : 100=16.67%, 250=33.33%, 500=16.67%, 750=25.00%, 2000=8.33% cpu : usr=0.04%, sys=3.27%, ctx=85, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=4177KiB/s (4277kB/s), 418KiB/s-1596KiB/s (428kB/s-1634kB/s), io=20.0MiB (20.0MB), run=4164-4903msec WRITE: bw=5848KiB/s (5988kB/s), 1140KiB/s-2089KiB/s (1167kB/s-2139kB/s), io=28.0MiB (29.4MB), run=4164-4903msec 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=144866: Fri Aug 21 09:27:16 2026 read: IOPS=0, BW=3434KiB/s (3517kB/s)(12.0MiB/3578msec) clat (msec): min=924, max=1575, avg=1149.08, stdev=369.31 lat (msec): min=924, max=1575, avg=1149.09, stdev=369.31 clat percentiles (msec): | 1.00th=[ 927], 5.00th=[ 927], 10.00th=[ 927], 20.00th=[ 927], | 30.00th=[ 927], 40.00th=[ 944], 50.00th=[ 944], 60.00th=[ 944], | 70.00th=[ 1569], 80.00th=[ 1569], 90.00th=[ 1569], 95.00th=[ 1569], | 99.00th=[ 1569], 99.50th=[ 1569], 99.90th=[ 1569], 99.95th=[ 1569], | 99.99th=[ 1569] bw ( KiB/s): min= 7713, max= 7892, per=100.00%, avg=7802.50, stdev=126.57, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=66.67%, 2000=33.33% cpu : usr=0.08%, sys=8.67%, ctx=217, 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=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=144868: Fri Aug 21 09:27:16 2026 read: IOPS=0, BW=1001KiB/s (1026kB/s)(4096KiB/4090msec) clat (nsec): min=1435.7M, max=1435.7M, avg=1435710213.00, stdev= 0.00 lat (nsec): min=1435.7M, max=1435.7M, avg=1435713298.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1435], 5.00th=[ 1435], 10.00th=[ 1435], 20.00th=[ 1435], | 30.00th=[ 1435], 40.00th=[ 1435], 50.00th=[ 1435], 60.00th=[ 1435], | 70.00th=[ 1435], 80.00th=[ 1435], 90.00th=[ 1435], 95.00th=[ 1435], | 99.00th=[ 1435], 99.50th=[ 1435], 99.90th=[ 1435], 99.95th=[ 1435], | 99.99th=[ 1435] bw ( KiB/s): min= 7713, max= 7713, per=100.00%, avg=7713.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2003KiB/s (2051kB/s)(8192KiB/4090msec); 0 zone resets clat (msec): min=891, max=1564, avg=1228.00, stdev=475.21 lat (msec): min=892, max=1565, avg=1229.07, stdev=476.03 clat percentiles (msec): | 1.00th=[ 894], 5.00th=[ 894], 10.00th=[ 894], 20.00th=[ 894], | 30.00th=[ 894], 40.00th=[ 894], 50.00th=[ 894], 60.00th=[ 1569], | 70.00th=[ 1569], 80.00th=[ 1569], 90.00th=[ 1569], 95.00th=[ 1569], | 99.00th=[ 1569], 99.50th=[ 1569], 99.90th=[ 1569], 99.95th=[ 1569], | 99.99th=[ 1569] bw ( KiB/s): min= 8159, max= 8159, per=100.00%, avg=8159.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 1000=33.33%, 2000=66.67% cpu : usr=0.00%, sys=4.40%, ctx=116, 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=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=144871: Fri Aug 21 09:27:16 2026 write: IOPS=1, BW=4783KiB/s (4898kB/s)(12.0MiB/2569msec); 0 zone resets clat (msec): min=661, max=1107, avg=815.13, stdev=253.61 lat (msec): min=662, max=1119, avg=819.25, stdev=259.70 clat percentiles (msec): | 1.00th=[ 659], 5.00th=[ 659], 10.00th=[ 659], 20.00th=[ 659], | 30.00th=[ 659], 40.00th=[ 676], 50.00th=[ 676], 60.00th=[ 676], | 70.00th=[ 1116], 80.00th=[ 1116], 90.00th=[ 1116], 95.00th=[ 1116], | 99.00th=[ 1116], 99.50th=[ 1116], 99.90th=[ 1116], 99.95th=[ 1116], | 99.99th=[ 1116] bw ( KiB/s): min= 8031, max= 8047, per=100.00%, avg=8039.00, stdev=11.31, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=66.67%, 2000=33.33% cpu : usr=0.00%, sys=3.62%, ctx=62, 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 rand-rw: (groupid=0, jobs=1): err= 0: pid=144873: Fri Aug 21 09:27:16 2026 write: IOPS=0, BW=3680KiB/s (3768kB/s)(12.0MiB/3339msec); 0 zone resets clat (msec): min=383, max=1678, avg=1023.17, stdev=647.61 lat (msec): min=387, max=1685, avg=1027.05, stdev=649.49 clat percentiles (msec): | 1.00th=[ 384], 5.00th=[ 384], 10.00th=[ 384], 20.00th=[ 384], | 30.00th=[ 384], 40.00th=[ 1011], 50.00th=[ 1011], 60.00th=[ 1011], | 70.00th=[ 1687], 80.00th=[ 1687], 90.00th=[ 1687], 95.00th=[ 1687], | 99.00th=[ 1687], 99.50th=[ 1687], 99.90th=[ 1687], 99.95th=[ 1687], rand-rw: (groupid=0, jobs=1): err= 0: pid=144867: Fri Aug 21 09:27:16 2026 read: IOPS=0, BW=3217KiB/s (3294kB/s)(12.0MiB/3820msec) clat (msec): min=284, max=1786, avg=1202.82, stdev=804.84 lat (msec): min=284, max=1786, avg=1202.83, stdev=804.84 clat percentiles (msec): | 1.00th=[ 284], 5.00th=[ 284], 10.00th=[ 284], 20.00th=[ 284], | 30.00th=[ 284], 40.00th=[ 1536], 50.00th=[ 1536], 60.00th=[ 1536], | 70.00th=[ 1787], 80.00th=[ 1787], 90.00th=[ 1787], 95.00th=[ 1787], | 99.00th=[ 1787], 99.50th=[ 1787], 99.90th=[ 1787], 99.95th=[ 1787], | 99.99th=[ 1787] bw ( KiB/s): min= 8047, max= 8126, per=100.00%, avg=8086.50, stdev=55.86, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.00%, sys=2.44%, ctx=39, 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=144869: Fri Aug 21 09:27:16 2026 read: IOPS=0, BW=977KiB/s (1000kB/s)(4096KiB/4193msec) clat (nsec): min=1979.1M, max=1979.1M, avg=1979068691.00, stdev= 0.00 lat (nsec): min=1979.1M, max=1979.1M, avg=1979071184.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1972], 5.00th=[ 1972], 10.00th=[ 1972], 20.00th=[ 1972], | 30.00th=[ 1972], 40.00th=[ 1972], 50.00th=[ 1972], 60.00th=[ 1972], | 70.00th=[ 1972], 80.00th=[ 1972], 90.00th=[ 1972], 95.00th=[ 1972], | 99.00th=[ 1972], 99.50th=[ 1972], 99.90th=[ 1972], 99.95th=[ 1972], | 99.99th=[ 1972] 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=1954KiB/s (2001kB/s)(8192KiB/4193msec); 0 zone resets clat (msec): min=565, max=1393, avg=979.84, stdev=585.50 lat (msec): min=566, max=1394, avg=980.36, stdev=585.60 clat percentiles (msec): | 1.00th=[ 567], 5.00th=[ 567], 10.00th=[ 567], 20.00th=[ 567], | 30.00th=[ 567], 40.00th=[ 567], 50.00th=[ 567], 60.00th=[ 1401], | 70.00th=[ 1401], 80.00th=[ 1401], 90.00th=[ 1401], 95.00th=[ 1401], | 99.00th=[ 1401], 99.50th=[ 1401], 99.90th=[ 1401], 99.95th=[ 1401], | 99.99th=[ 1401] bw ( KiB/s): min= 8047, max= 8047, per=100.00%, avg=8047.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=33.33%, 2000=66.67% cpu : usr=0.00%, sys=3.12%, ctx=42, 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=144870: Fri Aug 21 09:27:16 2026 write: IOPS=0, BW=2860KiB/s (2928kB/s)(12.0MiB/4297msec); 0 zone resets clat (msec): min=304, max=2596, avg=1405.79, stdev=1148.67 lat (msec): min=305, max=2597, avg=1406.55, stdev=1148.62 clat percentiles (msec): | 1.00th=[ 305], 5.00th=[ 305], 10.00th=[ 305], 20.00th=[ 305], | 30.00th=[ 305], 40.00th=[ 1318], 50.00th=[ 1318], 60.00th=[ 1318], | 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= 8000, max= 8126, per=100.00%, avg=8063.00, stdev=89.10, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=2.98%, | 99.99th=[ 1687] bw ( KiB/s): min= 7728, max= 7922, per=97.68%, avg=7825.00, stdev=137.18, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.03%, sys=5.00%, 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=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=4006KiB/s (4102kB/s), 1001KiB/s-3434KiB/s (1026kB/s-3517kB/s), io=16.0MiB (16.8MB), run=3578-4090msec WRITE: bw=8012KiB/s (8204kB/s), 2003KiB/s-4783KiB/s (2051kB/s-4898kB/s), io=32.0MiB (33.6MB), run=2569-4090msec ctx=60, 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=144872: Fri Aug 21 09:27:16 2026 write: IOPS=0, BW=4047KiB/s (4145kB/s)(12.0MiB/3036msec); 0 zone resets clat (msec): min=573, max=1705, avg=985.71, stdev=625.44 lat (msec): min=573, max=1705, avg=986.08, stdev=625.39 clat percentiles (msec): | 1.00th=[ 575], 5.00th=[ 575], 10.00th=[ 575], 20.00th=[ 575], | 30.00th=[ 575], 40.00th=[ 676], 50.00th=[ 676], 60.00th=[ 676], | 70.00th=[ 1703], 80.00th=[ 1703], 90.00th=[ 1703], 95.00th=[ 1703], | 99.00th=[ 1703], 99.50th=[ 1703], 99.90th=[ 1703], 99.95th=[ 1703], | 99.99th=[ 1703] bw ( KiB/s): min= 8126, max= 8175, per=100.00%, avg=8150.50, stdev=34.65, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=66.67%, 2000=33.33% cpu : usr=0.07%, sys=3.33%, ctx=62, 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=3907KiB/s (4001kB/s), 977KiB/s-3217KiB/s (1000kB/s-3294kB/s), io=16.0MiB (16.8MB), run=3820-4193msec WRITE: bw=7626KiB/s (7809kB/s), 1954KiB/s-4047KiB/s (2001kB/s-4145kB/s), io=32.0MiB (33.6MB), run=3036-4297msec