== sanity test 398b: DIO and buffer IO race ============== 09:30:39 (1786714239) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 5.46502 s, 9.2 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=144561: Fri Aug 14 09:33:16 2026 read: IOPS=10, BW=43.8KiB/s (44.9kB/s)(5992KiB/136767msec) clat (usec): min=32, max=545950, avg=45712.29, stdev=35105.54 lat (usec): min=32, max=545950, avg=45715.67, stdev=35105.63 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 70], 10.00th=[ 13960], 20.00th=[ 22938], | 30.00th=[ 28443], 40.00th=[ 33817], 50.00th=[ 40109], 60.00th=[ 47449], | 70.00th=[ 55313], 80.00th=[ 64226], 90.00th=[ 83362], 95.00th=[ 99091], | 99.00th=[160433], 99.50th=[196084], 99.90th=[400557], 99.95th=[549454], | 99.99th=[549454] bw ( KiB/s): min= 7, max= 95, per=25.19%, avg=43.59, stdev=17.49, samples=266 iops : min= 1, max= 23, avg=10.24, stdev= 4.38, samples=266 write: IOPS=11, BW=46.0KiB/s (47.1kB/s)(6296KiB/136767msec); 0 zone resets clat (usec): min=1021, max=342451, avg=43265.88, stdev=43416.60 lat (usec): min=1022, max=342453, avg=43269.56, stdev=43415.56 clat percentiles (usec): | 1.00th=[ 1352], 5.00th=[ 1598], 10.00th=[ 2147], 20.00th=[ 5669], | 30.00th=[ 10290], 40.00th=[ 21627], 50.00th=[ 33817], 60.00th=[ 44303], | 70.00th=[ 55837], 80.00th=[ 73925], 90.00th=[ 99091], 95.00th=[124257], | 99.00th=[189793], 99.50th=[238027], 99.90th=[337642], 99.95th=[341836], | 99.99th=[341836] bw ( KiB/s): min= 7, max= 104, per=24.92%, avg=45.35, stdev=18.75, samples=269 iops : min= 1, max= 26, avg=10.69, stdev= 4.72, samples=269 lat (usec) : 50=0.26%, 100=3.22%, 250=0.33%, 500=0.13%, 750=0.07% lat (usec) : 1000=0.03% lat (msec) : 2=4.98%, 4=3.78%, 10=6.77%, 20=7.81%, 50=36.65% lat (msec) : 100=28.58%, 250=7.13%, 500=0.23%, 750=0.03% cpu : usr=0.08%, sys=5.32%, ctx=6842, 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=144562: Fri Aug 14 09:33:16 2026 read: IOPS=10, BW=43.0KiB/s (44.1kB/s)(5940KiB/138028msec) clat (usec): min=28, max=415764, avg=45912.88, stdev=33479.41 lat (usec): min=28, max=415765, avg=45922.53, stdev=33473.83 clat percentiles (usec): | 1.00th=[ 51], 5.00th=[ 72], 10.00th=[ 13960], 20.00th=[ 23200], | 30.00th=[ 28705], 40.00th=[ 34866], 50.00th=[ 40633], 60.00th=[ 46924], | 70.00th=[ 55837], 80.00th=[ 67634], 90.00th=[ 81265], 95.00th=[ 96994], | 99.00th=[152044], 99.50th=[196084], 99.90th=[404751], 99.95th=[417334], | 99.99th=[417334] bw ( KiB/s): min= 5, max= 118, per=24.80%, avg=42.91, stdev=18.26, samples=269 iops : min= 1, max= 29, avg=10.08, stdev= 4.58, samples=269 write: IOPS=11, BW=45.0KiB/s (47.1kB/s)(6348KiB/138028msec); 0 zone resets clat (usec): min=1004, max=491862, avg=43869.48, stdev=44425.70 lat (usec): min=1005, max=491863, avg=43873.09, stdev=44426.38 clat percentiles (usec): | 1.00th=[ 1369], 5.00th=[ 1582], 10.00th=[ 2212], 20.00th=[ 5538], | 30.00th=[ 11338], 40.00th=[ 22938], 50.00th=[ 34341], 60.00th=[ 44303], | 70.00th=[ 58459], 80.00th=[ 73925], 90.00th=[ 99091], 95.00th=[120062], | 99.00th=[196084], 99.50th=[223347], 99.90th=[400557], 99.95th=[492831], | 99.99th=[492831] bw ( KiB/s): min= 5, max= 119, per=24.86%, avg=45.25, stdev=18.93, samples=272 iops : min= 1, max= 29, avg=10.67, stdev= 4.78, samples=272 lat (usec) : 50=0.42%, 100=3.16%, 250=0.55%, 500=0.03%, 750=0.03% lat (usec) : 1000=0.07% lat (msec) : 2=4.52%, 4=3.42%, 10=7.06%, 20=8.07%, 50=36.59% lat (msec) : 100=28.84%, 250=7.03%, 500=0.20% cpu : usr=0.08%, sys=5.27%, ctx=6934, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144564: Fri Aug 14 09:33:16 2026 read: IOPS=11, BW=44.4KiB/s (45.5kB/s)(6028KiB/135698msec) clat (usec): min=27, max=402570, avg=44768.49, stdev=31420.79 lat (usec): min=27, max=402571, avg=44774.88, stdev=31422.57 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 69], 10.00th=[ 11076], 20.00th=[ 22414], | 30.00th=[ 27919], 40.00th=[ 32900], 50.00th=[ 39060], 60.00th=[ 46400], | 70.00th=[ 54789], 80.00th=[ 66847], 90.00th=[ 84411], 95.00th=[100140], | 99.00th=[132645], 99.50th=[162530], 99.90th=[217056], 99.95th=[400557], | 99.99th=[400557] bw ( KiB/s): min= 7, max= 103, per=25.48%, avg=44.08, stdev=18.20, samples=266 iops : min= 1, max= 25, avg=10.35, stdev= 4.56, samples=266 write: IOPS=11, BW=46.1KiB/s (47.2kB/s)(6260KiB/135698msec); 0 zone resets clat (usec): min=1213, max=447908, avg=43426.28, stdev=45488.71 lat (usec): min=1214, max=447910, avg=43429.72, stdev=45487.69 clat percentiles (usec): | 1.00th=[ 1418], 5.00th=[ 1647], 10.00th=[ 2704], 20.00th=[ 5735], | 30.00th=[ 10814], 40.00th=[ 21890], 50.00th=[ 33162], 60.00th=[ 43254], | 70.00th=[ 56361], 80.00th=[ 72877], 90.00th=[ 98042], 95.00th=[117965], | 99.00th=[198181], 99.50th=[270533], 99.90th=[417334], 99.95th=[446694], | 99.99th=[446694] bw ( KiB/s): min= 7, max= 103, per=25.02%, avg=45.54, stdev=18.21, samples=267 iops : min= 1, max= 25, avg=10.73, stdev= 4.59, samples=267 lat (usec) : 50=0.42%, 100=3.52%, 250=0.42%, 500=0.23%, 750=0.07% lat (msec) : 2=3.61%, 4=3.84%, 10=7.39%, 20=8.24%, 50=36.46% lat (msec) : 100=28.55%, 250=6.97%, 500=0.29% cpu : usr=0.07%, sys=5.33%, ctx=6862, 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=144565: Fri Aug 14 09:33:16 2026 read: IOPS=10, BW=43.0KiB/s (45.1kB/s)(6052KiB/137561msec) clat (usec): min=34, max=465213, avg=44907.02, stdev=34738.97 lat (usec): min=35, max=465215, avg=44909.03, stdev=34738.85 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 70], 10.00th=[ 1123], 20.00th=[ 21627], | 30.00th=[ 27395], 40.00th=[ 32637], 50.00th=[ 37487], 60.00th=[ 45351], | 70.00th=[ 55313], 80.00th=[ 66847], 90.00th=[ 84411], 95.00th=[ 99091], | 99.00th=[166724], 99.50th=[198181], 99.90th=[354419], 99.95th=[463471], | 99.99th=[463471] bw ( KiB/s): min= 7, max= 95, per=25.39%, avg=43.92, stdev=17.90, samples=268 iops : min= 1, max= 23, avg=10.32, stdev= 4.52, samples=268 write: IOPS=11, BW=45.3KiB/s (46.4kB/s)(6236KiB/137561msec); 0 zone resets clat (usec): min=1145, max=383640, avg=44506.97, stdev=42780.16 lat (usec): min=1146, max=383642, avg=44514.55, stdev=42781.80 clat percentiles (usec): | 1.00th=[ 1319], 5.00th=[ 1663], 10.00th=[ 2835], 20.00th=[ 6128], | 30.00th=[ 11469], 40.00th=[ 23987], 50.00th=[ 35390], 60.00th=[ 46400], | 70.00th=[ 57934], 80.00th=[ 73925], 90.00th=[102237], 95.00th=[128451], | 99.00th=[185598], 99.50th=[210764], 99.90th=[265290], 99.95th=[383779], | 99.99th=[383779] bw ( KiB/s): min= 7, max= 110, per=24.52%, avg=44.62, stdev=18.51, samples=271 iops : min= 1, max= 27, avg=10.50, stdev= 4.67, samples=271 lat (usec) : 50=0.36%, 100=3.58%, 250=0.75%, 500=0.07%, 750=0.03% lat (usec) : 1000=0.13% lat (msec) : 2=3.78%, 4=3.19%, 10=7.45%, 20=8.27%, 50=36.04% lat (msec) : 100=28.74%, 250=7.42%, 500=0.20% cpu : usr=0.09%, sys=5.31%, ctx=7066, 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=174KiB/s (178kB/s), 43.0KiB/s-44.4KiB/s (44.1kB/s-45.5kB/s), io=23.4MiB (24.6MB), run=135698-138028msec WRITE: bw=182KiB/s (187kB/s), 45.3KiB/s-46.1KiB/s (46.4kB/s-47.2kB/s), io=24.6MiB (25.7MB), run=135698-138028msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144556: Fri Aug 14 09:35:40 2026 read: IOPS=5, BW=21.2KiB/s (21.7kB/s)(5992KiB/282860msec) clat (msec): min=6, max=977, avg=40.11, stdev=43.44 lat (msec): min=6, max=977, avg=40.11, stdev=43.44 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 14], 20.00th=[ 17], | 30.00th=[ 20], 40.00th=[ 23], 50.00th=[ 28], 60.00th=[ 34], | 70.00th=[ 42], 80.00th=[ 56], 90.00th=[ 84], 95.00th=[ 109], | 99.00th=[ 199], 99.50th=[ 236], 99.90th=[ 422], 99.95th=[ 978], | 99.99th=[ 978] bw ( KiB/s): min= 7, max= 95, per=27.95%, avg=23.48, stdev=16.64, samples=492 iops : min= 1, max= 23, avg= 5.22, stdev= 4.19, samples=492 write: IOPS=5, BW=22.3KiB/s (22.8kB/s)(6296KiB/282860msec); 0 zone resets clat (msec): min=46, max=555, avg=141.29, stdev=65.49 lat (msec): min=46, max=555, avg=141.30, stdev=65.49 clat percentiles (msec): | 1.00th=[ 57], 5.00th=[ 69], 10.00th=[ 79], 20.00th=[ 91], | 30.00th=[ 103], 40.00th=[ 114], 50.00th=[ 125], 60.00th=[ 140], | 70.00th=[ 159], 80.00th=[ 184], 90.00th=[ 224], 95.00th=[ 271], | 99.00th=[ 384], 99.50th=[ 451], 99.90th=[ 510], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 7, max= 47, per=24.93%, avg=21.93, stdev= 9.49, samples=551 iops : min= 1, max= 11, avg= 4.83, stdev= 2.42, samples=551 lat (msec) : 10=1.60%, 20=13.77%, 50=22.23%, 100=22.46%, 250=36.33% lat (msec) : 500=3.52%, 750=0.07%, 1000=0.03% cpu : usr=0.04%, sys=1.46%, ctx=5448, 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=144557: Fri Aug 14 09:35:40 2026 read: IOPS=5, BW=20.0KiB/s (21.5kB/s)(5940KiB/282878msec) clat (msec): min=7, max=598, avg=39.71, stdev=40.16 lat (msec): min=7, max=598, avg=39.72, stdev=40.17 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 20], 40.00th=[ 23], 50.00th=[ 27], 60.00th=[ 33], | 70.00th=[ 40], 80.00th=[ 55], 90.00th=[ 82], 95.00th=[ 110], | 99.00th=[ 203], 99.50th=[ 251], 99.90th=[ 384], 99.95th=[ 600], | 99.99th=[ 600] bw ( KiB/s): min= 7, max= 103, per=27.97%, avg=23.49, stdev=15.63, samples=487 iops : min= 1, max= 25, avg= 5.23, stdev= 3.92, samples=487 write: IOPS=5, BW=22.4KiB/s (22.0kB/s)(6348KiB/282878msec); 0 zone resets clat (msec): min=43, max=746, avg=140.84, stdev=67.01 lat (msec): min=43, max=746, avg=140.85, stdev=67.01 clat percentiles (msec): | 1.00th=[ 54], 5.00th=[ 69], 10.00th=[ 79], 20.00th=[ 90], | 30.00th=[ 102], 40.00th=[ 113], 50.00th=[ 126], 60.00th=[ 140], | 70.00th=[ 157], 80.00th=[ 180], 90.00th=[ 224], 95.00th=[ 275], | 99.00th=[ 372], 99.50th=[ 468], 99.90th=[ 592], 99.95th=[ 743], | 99.99th=[ 743] bw ( KiB/s): min= 7, max= 48, per=25.23%, avg=22.20, stdev= 9.57, samples=549 iops : min= 1, max= 12, avg= 4.89, stdev= 2.45, samples=549 lat (msec) : 10=1.73%, 20=14.49%, 50=21.09%, 100=23.40%, 250=35.48% lat (msec) : 500=3.68%, 750=0.13% cpu : usr=0.05%, sys=1.40%, ctx=5478, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144558: Fri Aug 14 09:35:40 2026 read: IOPS=5, BW=21.5KiB/s (22.0kB/s)(6028KiB/280212msec) clat (msec): min=6, max=493, avg=40.77, stdev=39.78 lat (msec): min=6, max=493, avg=40.77, stdev=39.78 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 17], | 30.00th=[ 20], 40.00th=[ 24], 50.00th=[ 27], 60.00th=[ 33], | 70.00th=[ 42], 80.00th=[ 55], 90.00th=[ 87], 95.00th=[ 116], | 99.00th=[ 199], 99.50th=[ 226], 99.90th=[ 326], 99.95th=[ 493], | 99.99th=[ 493] bw ( KiB/s): min= 7, max= 87, per=27.91%, avg=23.44, stdev=15.53, samples=495 iops : min= 1, max= 21, avg= 5.20, stdev= 3.90, samples=495 write: IOPS=5, BW=22.3KiB/s (22.9kB/s)(6260KiB/280212msec); 0 zone resets clat (msec): min=42, max=746, avg=139.55, stdev=63.67 lat (msec): min=42, max=746, avg=139.55, stdev=63.67 clat percentiles (msec): | 1.00th=[ 57], 5.00th=[ 69], 10.00th=[ 77], 20.00th=[ 92], | 30.00th=[ 104], 40.00th=[ 115], 50.00th=[ 127], 60.00th=[ 140], | 70.00th=[ 157], 80.00th=[ 178], 90.00th=[ 213], 95.00th=[ 251], | 99.00th=[ 359], 99.50th=[ 401], 99.90th=[ 693], 99.95th=[ 751], | 99.99th=[ 751] bw ( KiB/s): min= 7, max= 48, per=25.07%, avg=22.06, stdev= 9.48, samples=545 iops : min= 1, max= 12, avg= 4.86, stdev= 2.43, samples=545 lat (msec) : 10=1.04%, 20=14.06%, 50=22.75%, 100=21.74%, 250=37.57% lat (msec) : 500=2.73%, 750=0.10% cpu : usr=0.05%, sys=1.44%, ctx=5311, 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=144559: Fri Aug 14 09:35:40 2026 read: IOPS=5, BW=21.7KiB/s (22.2kB/s)(6052KiB/279166msec) clat (msec): min=6, max=610, avg=39.98, stdev=45.04 lat (msec): min=6, max=610, avg=39.98, stdev=45.04 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 20], 40.00th=[ 22], 50.00th=[ 27], 60.00th=[ 31], | 70.00th=[ 40], 80.00th=[ 51], 90.00th=[ 81], 95.00th=[ 117], | 99.00th=[ 213], 99.50th=[ 313], 99.90th=[ 443], 99.95th=[ 609], | 99.99th=[ 609] bw ( KiB/s): min= 7, max= 95, per=28.98%, avg=24.34, stdev=16.28, samples=479 iops : min= 1, max= 23, avg= 5.43, stdev= 4.10, samples=479 write: IOPS=5, BW=22.3KiB/s (22.9kB/s)(6236KiB/279166msec); 0 zone resets clat (msec): min=38, max=691, avg=140.02, stdev=62.44 lat (msec): min=38, max=691, avg=140.03, stdev=62.44 clat percentiles (msec): | 1.00th=[ 55], 5.00th=[ 68], 10.00th=[ 78], 20.00th=[ 92], | 30.00th=[ 103], 40.00th=[ 114], 50.00th=[ 127], 60.00th=[ 140], | 70.00th=[ 157], 80.00th=[ 182], 90.00th=[ 222], 95.00th=[ 268], | 99.00th=[ 347], 99.50th=[ 388], 99.90th=[ 456], 99.95th=[ 693], | 99.99th=[ 693] bw ( KiB/s): min= 7, max= 47, per=24.98%, avg=21.98, stdev= 9.56, samples=544 iops : min= 1, max= 11, avg= 4.84, stdev= 2.44, samples=544 lat (msec) : 10=1.30%, 20=15.33%, 50=22.92%, 100=20.64%, 250=36.13% lat (msec) : 500=3.61%, 750=0.07% cpu : usr=0.05%, sys=1.43%, ctx=5391, 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=84.9KiB/s (86.9kB/s), 20.0KiB/s-21.7KiB/s (21.5kB/s-22.2kB/s), io=23.4MiB (24.6MB), run=279166-282878msec WRITE: bw=88.9KiB/s (91.0kB/s), 22.3KiB/s-22.4KiB/s (22.8kB/s-22.0kB/s), io=24.6MiB (25.7MB), run=279166-282878msec 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=144627: Fri Aug 14 09:36:23 2026 read: IOPS=11, BW=181KiB/s (185kB/s)(5920KiB/32689msec) clat (usec): min=32, max=278740, avg=47477.53, stdev=37578.26 lat (usec): min=33, max=278742, avg=47479.74, stdev=37578.69 clat percentiles (usec): | 1.00th=[ 45], 5.00th=[ 68], 10.00th=[ 77], 20.00th=[ 9765], | 30.00th=[ 28443], 40.00th=[ 38011], 50.00th=[ 44303], 60.00th=[ 51119], | 70.00th=[ 60031], 80.00th=[ 73925], 90.00th=[ 93848], 95.00th=[112722], | 99.00th=[156238], 99.50th=[204473], 99.90th=[278922], 99.95th=[278922], | 99.99th=[278922] bw ( KiB/s): min= 31, max= 473, per=25.45%, avg=183.49, stdev=66.35, samples=63 iops : min= 1, max= 29, avg=10.68, stdev= 4.23, samples=63 write: IOPS=12, BW=195KiB/s (199kB/s)(6368KiB/32689msec); 0 zone resets clat (usec): min=1674, max=285000, avg=37618.60, stdev=38640.95 lat (usec): min=1677, max=285002, avg=37637.76, stdev=38627.60 clat percentiles (usec): | 1.00th=[ 1729], 5.00th=[ 2147], 10.00th=[ 3392], 20.00th=[ 7111], | 30.00th=[ 9896], 40.00th=[ 16450], 50.00th=[ 25560], 60.00th=[ 36439], | 70.00th=[ 47973], 80.00th=[ 62129], 90.00th=[ 88605], 95.00th=[114820], | 99.00th=[164627], 99.50th=[235930], 99.90th=[283116], 99.95th=[283116], | 99.99th=[283116] bw ( KiB/s): min= 31, max= 459, per=25.62%, avg=194.47, stdev=88.51, samples=64 iops : min= 1, max= 28, avg=11.37, stdev= 5.59, samples=64 lat (usec) : 50=0.78%, 100=5.99%, 250=1.17%, 500=0.13%, 750=0.26% lat (usec) : 1000=0.39% lat (msec) : 2=1.95%, 4=4.04%, 10=10.55%, 20=8.85%, 50=31.38% lat (msec) : 100=27.21%, 250=7.03%, 500=0.26% cpu : usr=0.07%, sys=5.66%, ctx=1566, 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=144628: Fri Aug 14 09:36:23 2026 read: IOPS=10, BW=173KiB/s (177kB/s)(5744KiB/33175msec) clat (usec): min=42, max=500716, avg=48586.55, stdev=43317.01 lat (usec): min=42, max=500718, avg=48588.74, stdev=43316.98 clat percentiles (usec): | 1.00th=[ 62], 5.00th=[ 72], 10.00th=[ 87], 20.00th=[ 22676], | 30.00th=[ 31065], 40.00th=[ 36439], 50.00th=[ 43779], 60.00th=[ 49546], | 70.00th=[ 59507], 80.00th=[ 71828], 90.00th=[ 88605], 95.00th=[107480], | 99.00th=[173016], 99.50th=[346031], 99.90th=[501220], 99.95th=[501220], | 99.99th=[501220] bw ( KiB/s): min= 31, max= 318, per=24.42%, avg=176.09, stdev=75.15, samples=64 iops : min= 1, max= 19, avg=10.22, stdev= 4.78, samples=64 write: IOPS=12, BW=197KiB/s (202kB/s)(6544KiB/33175msec); 0 zone resets clat (usec): min=1784, max=384138, avg=37946.85, stdev=41780.74 lat (usec): min=1785, max=384139, avg=37949.82, stdev=41780.73 clat percentiles (usec): | 1.00th=[ 1844], 5.00th=[ 2638], 10.00th=[ 4817], 20.00th=[ 7177], | 30.00th=[ 10159], 40.00th=[ 13829], 50.00th=[ 23462], 60.00th=[ 36439], | 70.00th=[ 45876], 80.00th=[ 64226], 90.00th=[ 94897], 95.00th=[113771], | 99.00th=[189793], 99.50th=[217056], 99.90th=[383779], 99.95th=[383779], | 99.99th=[383779] bw ( KiB/s): min= 31, max= 412, per=25.87%, avg=196.37, stdev=89.98, samples=65 iops : min= 1, max= 25, avg=11.51, stdev= 5.69, samples=65 lat (usec) : 50=0.13%, 100=4.82%, 250=1.43%, 500=0.13%, 750=0.26% lat (msec) : 2=1.17%, 4=3.78%, 10=11.07%, 20=11.46%, 50=33.20% lat (msec) : 100=25.65%, 250=6.51%, 500=0.26%, 750=0.13% cpu : usr=0.14%, sys=5.84%, ctx=1625, 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=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=144629: Fri Aug 14 09:36:23 2026 read: IOPS=12, BW=193KiB/s (198kB/s)(6256KiB/32423msec) clat (usec): min=39, max=471113, avg=44536.25, stdev=38079.45 lat (usec): min=40, max=471115, avg=44558.86, stdev=38088.70 clat percentiles (usec): | 1.00th=[ 47], 5.00th=[ 64], 10.00th=[ 77], 20.00th=[ 4752], | 30.00th=[ 29492], 40.00th=[ 36439], 50.00th=[ 42730], 60.00th=[ 49546], | 70.00th=[ 57410], 80.00th=[ 69731], 90.00th=[ 82314], 95.00th=[ 91751], | 99.00th=[123208], 99.50th=[227541], 99.90th=[471860], 99.95th=[471860], | 99.99th=[471860] bw ( KiB/s): min= 31, max= 379, per=27.02%, avg=194.81, stdev=73.20, samples=63 iops : min= 1, max= 23, avg=11.40, stdev= 4.66, samples=63 write: IOPS=11, BW=186KiB/s (191kB/s)(6032KiB/32423msec); 0 zone resets clat (usec): min=1784, max=201642, avg=39169.67, stdev=38861.74 lat (usec): min=1786, max=201646, avg=39172.97, stdev=38861.47 clat percentiles (usec): | 1.00th=[ 1909], 5.00th=[ 2409], 10.00th=[ 4047], 20.00th=[ 7308], | 30.00th=[ 11076], 40.00th=[ 17171], 50.00th=[ 25822], 60.00th=[ 36963], | 70.00th=[ 51643], 80.00th=[ 66847], 90.00th=[ 96994], 95.00th=[121111], | 99.00th=[170918], 99.50th=[179307], 99.90th=[202376], 99.95th=[202376], | 99.99th=[202376] bw ( KiB/s): min= 31, max= 412, per=24.43%, avg=185.43, stdev=75.83, samples=63 iops : min= 1, max= 25, avg=10.81, stdev= 4.81, samples=63 lat (usec) : 50=0.65%, 100=7.42%, 250=1.82% lat (msec) : 2=1.17%, 4=3.91%, 10=9.24%, 20=8.46%, 50=32.16% lat (msec) : 100=28.78%, 250=6.25%, 500=0.13% cpu : usr=0.06%, sys=5.78%, ctx=1627, 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=144630: Fri Aug 14 09:36:23 2026 read: IOPS=11, BW=184KiB/s (188kB/s)(6032KiB/32825msec) clat (usec): min=44, max=233868, avg=45673.72, stdev=36573.50 lat (usec): min=44, max=233869, avg=45675.31, stdev=36573.53 clat percentiles (usec): | 1.00th=[ 57], 5.00th=[ 70], 10.00th=[ 82], 20.00th=[ 1045], | 30.00th=[ 28705], 40.00th=[ 35914], 50.00th=[ 43254], 60.00th=[ 50070], | 70.00th=[ 60556], 80.00th=[ 70779], 90.00th=[ 86508], 95.00th=[111674], | 99.00th=[156238], 99.50th=[214959], 99.90th=[233833], 99.95th=[233833], | 99.99th=[233833] bw ( KiB/s): min= 31, max= 380, per=25.35%, avg=182.77, stdev=76.88, samples=64 iops : min= 1, max= 23, avg=10.63, stdev= 4.85, samples=64 write: IOPS=11, BW=191KiB/s (195kB/s)(6256KiB/32825msec); 0 zone resets clat (usec): min=1721, max=504048, avg=39248.98, stdev=43788.64 lat (usec): min=1723, max=504050, avg=39251.90, stdev=43788.55 clat percentiles (usec): | 1.00th=[ 1926], 5.00th=[ 2769], 10.00th=[ 4113], 20.00th=[ 7570], | 30.00th=[ 10552], 40.00th=[ 15533], 50.00th=[ 25035], 60.00th=[ 38011], | 70.00th=[ 51643], 80.00th=[ 65799], 90.00th=[ 93848], 95.00th=[111674], | 99.00th=[181404], 99.50th=[210764], 99.90th=[505414], 99.95th=[505414], | 99.99th=[505414] bw ( KiB/s): min= 63, max= 445, per=25.51%, avg=193.60, stdev=72.87, samples=63 iops : min= 3, max= 27, avg=11.32, stdev= 4.62, samples=63 lat (usec) : 50=0.26%, 100=6.12%, 250=2.86%, 500=0.39%, 750=0.13% lat (msec) : 2=1.30%, 4=4.17%, 10=9.77%, 20=9.90%, 50=29.56% lat (msec) : 100=28.26%, 250=7.16%, 750=0.13% cpu : usr=0.08%, sys=5.65%, ctx=1627, 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=722KiB/s (739kB/s), 173KiB/s-193KiB/s (177kB/s-198kB/s), io=23.4MiB (24.5MB), run=32423-33175msec WRITE: bw=760KiB/s (778kB/s), 186KiB/s-197KiB/s (191kB/s-202kB/s), io=24.6MiB (25.8MB), run=32423-33175msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144632: Fri Aug 14 09:37:04 2026 read: IOPS=5, BW=81.6KiB/s (83.5kB/s)(5920KiB/72557msec) clat (msec): min=7, max=298, avg=38.70, stdev=39.19 lat (msec): min=7, max=298, avg=38.70, stdev=39.19 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 17], | 30.00th=[ 20], 40.00th=[ 23], 50.00th=[ 27], 60.00th=[ 31], | 70.00th=[ 38], 80.00th=[ 47], 90.00th=[ 78], 95.00th=[ 109], | 99.00th=[ 222], 99.50th=[ 232], 99.90th=[ 300], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 31, max= 382, per=27.94%, avg=92.22, stdev=58.59, samples=125 iops : min= 1, max= 23, avg= 5.02, stdev= 3.74, samples=125 write: IOPS=5, BW=87.8KiB/s (89.9kB/s)(6368KiB/72557msec); 0 zone resets clat (msec): min=47, max=459, avg=146.07, stdev=74.70 lat (msec): min=47, max=459, avg=146.07, stdev=74.70 clat percentiles (msec): | 1.00th=[ 60], 5.00th=[ 69], 10.00th=[ 80], 20.00th=[ 91], | 30.00th=[ 101], 40.00th=[ 111], 50.00th=[ 125], 60.00th=[ 142], | 70.00th=[ 157], 80.00th=[ 194], 90.00th=[ 243], 95.00th=[ 321], | 99.00th=[ 418], 99.50th=[ 456], 99.90th=[ 460], 99.95th=[ 460], | 99.99th=[ 460] bw ( KiB/s): min= 30, max= 160, per=25.26%, avg=87.67, stdev=38.10, samples=142 iops : min= 1, max= 10, avg= 4.73, stdev= 2.47, samples=142 lat (msec) : 10=1.17%, 20=14.97%, 50=23.31%, 100=20.96%, 250=34.77% lat (msec) : 500=4.82% cpu : usr=0.04%, sys=1.46%, ctx=1359, 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=144633: Fri Aug 14 09:37:04 2026 read: IOPS=4, BW=79.2KiB/s (81.1kB/s)(5744KiB/72570msec) clat (msec): min=8, max=394, avg=41.74, stdev=43.86 lat (msec): min=8, max=394, avg=41.74, stdev=43.86 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 13], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 20], 40.00th=[ 23], 50.00th=[ 26], 60.00th=[ 31], | 70.00th=[ 39], 80.00th=[ 53], 90.00th=[ 91], 95.00th=[ 133], | 99.00th=[ 224], 99.50th=[ 296], 99.90th=[ 397], 99.95th=[ 397], | 99.99th=[ 397] bw ( KiB/s): min= 27, max= 313, per=27.39%, avg=90.39, stdev=58.85, samples=124 iops : min= 1, max= 19, avg= 4.92, stdev= 3.76, samples=124 write: IOPS=5, BW=90.2KiB/s (92.3kB/s)(6544KiB/72570msec); 0 zone resets clat (msec): min=48, max=531, avg=140.53, stdev=64.59 lat (msec): min=48, max=531, avg=140.53, stdev=64.59 clat percentiles (msec): | 1.00th=[ 57], 5.00th=[ 72], 10.00th=[ 80], 20.00th=[ 94], | 30.00th=[ 104], 40.00th=[ 114], 50.00th=[ 128], 60.00th=[ 138], | 70.00th=[ 153], 80.00th=[ 174], 90.00th=[ 218], 95.00th=[ 262], | 99.00th=[ 380], 99.50th=[ 443], 99.90th=[ 531], 99.95th=[ 531], | 99.99th=[ 531] bw ( KiB/s): min= 27, max= 190, per=26.15%, avg=90.73, stdev=39.26, samples=141 iops : min= 1, max= 11, avg= 4.91, stdev= 2.52, samples=141 lat (msec) : 10=0.52%, 20=13.93%, 50=22.27%, 100=20.31%, 250=39.32% lat (msec) : 500=3.52%, 750=0.13% cpu : usr=0.03%, sys=1.45%, ctx=1288, 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=144634: Fri Aug 14 09:37:04 2026 read: IOPS=5, BW=88.1KiB/s (90.2kB/s)(6256KiB/71028msec) clat (msec): min=8, max=239, avg=38.96, stdev=35.24 lat (msec): min=8, max=239, avg=38.96, stdev=35.24 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 13], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 21], 40.00th=[ 24], 50.00th=[ 28], 60.00th=[ 32], | 70.00th=[ 38], 80.00th=[ 53], 90.00th=[ 77], 95.00th=[ 116], | 99.00th=[ 209], 99.50th=[ 224], 99.90th=[ 239], 99.95th=[ 239], | 99.99th=[ 239] bw ( KiB/s): min= 31, max= 311, per=29.69%, avg=97.97, stdev=65.94, samples=126 iops : min= 1, max= 19, avg= 5.39, stdev= 4.18, samples=126 write: IOPS=5, BW=84.9KiB/s (86.0kB/s)(6032KiB/71028msec); 0 zone resets clat (msec): min=39, max=537, avg=147.76, stdev=73.20 lat (msec): min=39, max=537, avg=147.77, stdev=73.21 clat percentiles (msec): | 1.00th=[ 61], 5.00th=[ 72], 10.00th=[ 80], 20.00th=[ 93], | 30.00th=[ 107], 40.00th=[ 116], 50.00th=[ 129], 60.00th=[ 140], | 70.00th=[ 159], 80.00th=[ 188], 90.00th=[ 249], 95.00th=[ 309], | 99.00th=[ 414], 99.50th=[ 468], 99.90th=[ 542], 99.95th=[ 542], | 99.99th=[ 542] bw ( KiB/s): min= 27, max= 190, per=24.84%, avg=86.18, stdev=37.25, samples=137 iops : min= 1, max= 11, avg= 4.63, stdev= 2.41, samples=137 lat (msec) : 10=0.65%, 20=14.45%, 50=25.13%, 100=20.31%, 250=34.77% lat (msec) : 500=4.56%, 750=0.13% cpu : usr=0.03%, sys=1.47%, ctx=1364, 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=144635: Fri Aug 14 09:37:04 2026 read: IOPS=5, BW=83.6KiB/s (85.6kB/s)(6032KiB/72162msec) clat (msec): min=6, max=246, avg=39.92, stdev=36.45 lat (msec): min=6, max=246, avg=39.93, stdev=36.45 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 13], 10.00th=[ 15], 20.00th=[ 19], | 30.00th=[ 22], 40.00th=[ 25], 50.00th=[ 28], 60.00th=[ 34], | 70.00th=[ 41], 80.00th=[ 50], 90.00th=[ 78], 95.00th=[ 118], | 99.00th=[ 194], 99.50th=[ 243], 99.90th=[ 247], 99.95th=[ 247], | 99.99th=[ 247] bw ( KiB/s): min= 31, max= 380, per=29.35%, avg=96.87, stdev=65.98, samples=121 iops : min= 1, max= 23, avg= 5.31, stdev= 4.20, samples=121 write: IOPS=5, BW=86.7KiB/s (88.8kB/s)(6256KiB/72162msec); 0 zone resets clat (msec): min=46, max=615, avg=145.82, stdev=72.85 lat (msec): min=46, max=615, avg=145.82, stdev=72.85 clat percentiles (msec): | 1.00th=[ 61], 5.00th=[ 71], 10.00th=[ 79], 20.00th=[ 89], | 30.00th=[ 101], 40.00th=[ 112], 50.00th=[ 126], 60.00th=[ 142], | 70.00th=[ 165], 80.00th=[ 197], 90.00th=[ 232], 95.00th=[ 279], | 99.00th=[ 401], 99.50th=[ 443], 99.90th=[ 617], 99.95th=[ 617], | 99.99th=[ 617] bw ( KiB/s): min= 28, max= 190, per=25.34%, avg=87.93, stdev=39.15, samples=139 iops : min= 1, max= 11, avg= 4.73, stdev= 2.52, samples=139 lat (msec) : 10=0.65%, 20=12.24%, 50=26.82%, 100=21.61%, 250=34.24% lat (msec) : 500=4.30%, 750=0.13% cpu : usr=0.06%, sys=1.44%, ctx=1275, 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=330KiB/s (338kB/s), 79.2KiB/s-88.1KiB/s (81.1kB/s-90.2kB/s), io=23.4MiB (24.5MB), run=71028-72570msec WRITE: bw=347KiB/s (356kB/s), 84.9KiB/s-90.2KiB/s (86.0kB/s-92.3kB/s), io=24.6MiB (25.8MB), run=71028-72570msec 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=144652: Fri Aug 14 09:37:18 2026 read: IOPS=2, BW=2181KiB/s (2233kB/s)(7168KiB/3287msec) clat (usec): min=782, max=379163, avg=214840.38, stdev=125617.81 lat (usec): min=783, max=379164, avg=214841.62, stdev=125617.64 clat percentiles (usec): | 1.00th=[ 783], 5.00th=[ 783], 10.00th=[ 783], 20.00th=[164627], | 30.00th=[173016], 40.00th=[173016], 50.00th=[185598], 60.00th=[265290], | 70.00th=[265290], 80.00th=[333448], 90.00th=[379585], 95.00th=[379585], | 99.00th=[379585], 99.50th=[379585], 99.90th=[379585], 99.95th=[379585], | 99.99th=[379585] bw ( KiB/s): min= 2027, max= 4807, per=82.88%, avg=3621.67, stdev=1434.49, samples=3 iops : min= 1, max= 4, avg= 2.67, stdev= 1.53, samples=3 write: IOPS=1, BW=1558KiB/s (1595kB/s)(5120KiB/3287msec); 0 zone resets clat (msec): min=136, max=617, avg=347.96, stdev=176.15 lat (msec): min=136, max=617, avg=348.03, stdev=176.17 clat percentiles (msec): | 1.00th=[ 136], 5.00th=[ 136], 10.00th=[ 136], 20.00th=[ 136], | 30.00th=[ 268], 40.00th=[ 268], 50.00th=[ 359], 60.00th=[ 359], | 70.00th=[ 359], 80.00th=[ 359], 90.00th=[ 617], 95.00th=[ 617], | 99.00th=[ 617], 99.50th=[ 617], 99.90th=[ 617], 99.95th=[ 617], | 99.99th=[ 617] bw ( KiB/s): min= 2043, max= 3915, per=43.62%, avg=2668.67, stdev=1079.36, samples=3 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=3 lat (usec) : 1000=8.33% lat (msec) : 250=33.33%, 500=50.00%, 750=8.33% cpu : usr=0.03%, sys=13.15%, ctx=155, 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=144653: Fri Aug 14 09:37:18 2026 read: IOPS=0, BW=437KiB/s (448kB/s)(2048KiB/4686msec) clat (usec): min=1913, max=172942, avg=87428.29, stdev=120936.04 lat (usec): min=1914, max=172945, avg=87430.01, stdev=120936.73 clat percentiles (usec): | 1.00th=[ 1909], 5.00th=[ 1909], 10.00th=[ 1909], 20.00th=[ 1909], | 30.00th=[ 1909], 40.00th=[ 1909], 50.00th=[ 1909], 60.00th=[173016], | 70.00th=[173016], 80.00th=[173016], 90.00th=[173016], 95.00th=[173016], | 99.00th=[173016], 99.50th=[173016], 99.90th=[173016], 99.95th=[173016], | 99.99th=[173016] bw ( KiB/s): min= 1617, max= 2027, per=41.69%, avg=1822.00, stdev=289.91, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2185KiB/s (2238kB/s)(10.0MiB/4686msec); 0 zone resets clat (msec): min=99, max=842, avg=437.83, stdev=235.49 lat (msec): min=99, max=842, avg=437.93, stdev=235.53 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 100], 10.00th=[ 100], 20.00th=[ 222], | 30.00th=[ 288], 40.00th=[ 338], 50.00th=[ 359], 60.00th=[ 430], | 70.00th=[ 435], 80.00th=[ 600], 90.00th=[ 768], 95.00th=[ 844], | 99.00th=[ 844], 99.50th=[ 844], 99.90th=[ 844], 99.95th=[ 844], | 99.99th=[ 844] bw ( KiB/s): min= 1957, max= 6107, per=52.90%, avg=3236.40, stdev=1833.81, samples=5 iops : min= 1, max= 5, avg= 2.40, stdev= 1.67, samples=5 lat (msec) : 2=8.33%, 100=8.33%, 250=16.67%, 500=41.67%, 750=8.33% lat (msec) : 1000=16.67% cpu : usr=0.09%, sys=13.43%, ctx=205, 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=144654: Fri Aug 14 09:37:18 2026 read: IOPS=1, BW=1532KiB/s (1569kB/s)(6144KiB/4011msec) clat (usec): min=582, max=289640, avg=178724.85, stdev=109026.08 lat (usec): min=583, max=289641, avg=178727.01, stdev=109025.74 clat percentiles (usec): | 1.00th=[ 586], 5.00th=[ 586], 10.00th=[ 586], 20.00th=[114820], | 30.00th=[114820], 40.00th=[162530], 50.00th=[162530], 60.00th=[240124], | 70.00th=[265290], 80.00th=[265290], 90.00th=[291505], 95.00th=[291505], | 99.00th=[291505], 99.50th=[291505], 99.90th=[291505], 99.95th=[291505], | 99.99th=[291505] bw ( KiB/s): min= 1957, max= 4096, per=57.75%, avg=2523.75, stdev=1048.61, samples=4 iops : min= 1, max= 4, avg= 1.75, stdev= 1.50, samples=4 write: IOPS=1, BW=1532KiB/s (1569kB/s)(6144KiB/4011msec); 0 zone resets clat (msec): min=167, max=816, avg=464.48, stdev=251.12 lat (msec): min=167, max=816, avg=464.58, stdev=251.15 clat percentiles (msec): | 1.00th=[ 167], 5.00th=[ 167], 10.00th=[ 167], 20.00th=[ 207], | 30.00th=[ 207], 40.00th=[ 435], 50.00th=[ 435], 60.00th=[ 514], | 70.00th=[ 651], 80.00th=[ 651], 90.00th=[ 818], 95.00th=[ 818], | 99.00th=[ 818], 99.50th=[ 818], 99.90th=[ 818], 99.95th=[ 818], | 99.99th=[ 818] bw ( KiB/s): min= 2015, max= 4087, per=41.59%, avg=2544.25, stdev=1028.59, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 lat (usec) : 750=8.33% lat (msec) : 250=41.67%, 500=25.00%, 750=16.67%, 1000=8.33% cpu : usr=0.00%, sys=11.12%, ctx=189, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144655: Fri Aug 14 09:37:18 2026 read: IOPS=1, BW=1337KiB/s (1369kB/s)(5120KiB/3829msec) clat (usec): min=330, max=412495, avg=138865.00, stdev=193641.73 lat (usec): min=330, max=412496, avg=138866.08, stdev=193641.76 clat percentiles (usec): | 1.00th=[ 330], 5.00th=[ 330], 10.00th=[ 330], 20.00th=[ 330], | 30.00th=[ 445], 40.00th=[ 445], 50.00th=[ 4948], 60.00th=[ 4948], | 70.00th=[274727], 80.00th=[274727], 90.00th=[413139], 95.00th=[413139], | 99.00th=[413139], 99.50th=[413139], 99.90th=[413139], 99.95th=[413139], | 99.99th=[413139] bw ( KiB/s): min= 7831, max= 7831, per=100.00%, avg=7831.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=1, BW=1872KiB/s (1917kB/s)(7168KiB/3829msec); 0 zone resets clat (msec): min=155, max=630, avg=434.72, stdev=152.32 lat (msec): min=156, max=631, avg=434.93, stdev=152.42 clat percentiles (msec): | 1.00th=[ 157], 5.00th=[ 157], 10.00th=[ 157], 20.00th=[ 342], | 30.00th=[ 426], 40.00th=[ 426], 50.00th=[ 456], 60.00th=[ 506], | 70.00th=[ 506], 80.00th=[ 527], 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= 2015, max= 4087, per=46.50%, avg=2844.80, stdev=1119.49, samples=5 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=5 lat (usec) : 500=16.67% lat (msec) : 10=8.33%, 250=8.33%, 500=41.67%, 750=25.00% cpu : usr=0.00%, sys=12.72%, ctx=167, 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=4370KiB/s (4475kB/s), 437KiB/s-2181KiB/s (448kB/s-2233kB/s), io=20.0MiB (20.0MB), run=3287-4686msec WRITE: bw=6119KiB/s (6265kB/s), 1532KiB/s-2185KiB/s (1569kB/s-2238kB/s), io=28.0MiB (29.4MB), run=3287-4686msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144657: Fri Aug 14 09:37:19 2026 read: IOPS=1, BW=1468KiB/s (1503kB/s)(7168KiB/4883msec) clat (msec): min=73, max=733, avg=324.70, stdev=260.33 lat (msec): min=73, max=733, avg=324.71, stdev=260.33 clat percentiles (msec): | 1.00th=[ 73], 5.00th=[ 73], 10.00th=[ 73], 20.00th=[ 110], | 30.00th=[ 138], 40.00th=[ 138], 50.00th=[ 199], 60.00th=[ 443], | 70.00th=[ 443], 80.00th=[ 584], 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= 1872, max= 3946, per=57.04%, avg=2383.20, stdev=876.45, samples=5 iops : min= 1, max= 3, avg= 1.60, stdev= 0.89, samples=5 write: IOPS=1, BW=1049KiB/s (1074kB/s)(5120KiB/4883msec); 0 zone resets clat (msec): min=108, max=1023, avg=418.75, stdev=354.62 lat (msec): min=108, max=1024, avg=419.06, stdev=355.12 clat percentiles (msec): | 1.00th=[ 109], 5.00th=[ 109], 10.00th=[ 109], 20.00th=[ 109], | 30.00th=[ 234], 40.00th=[ 234], 50.00th=[ 338], 60.00th=[ 338], | 70.00th=[ 393], 80.00th=[ 393], 90.00th=[ 1020], 95.00th=[ 1020], | 99.00th=[ 1020], 99.50th=[ 1020], 99.90th=[ 1020], 99.95th=[ 1020], | 99.99th=[ 1020] bw ( KiB/s): min= 1560, max= 4096, per=55.33%, avg=3237.00, stdev=1452.47, samples=3 iops : min= 1, max= 4, avg= 2.67, stdev= 1.53, samples=3 lat (msec) : 100=8.33%, 250=41.67%, 500=25.00%, 750=16.67%, 2000=8.33% cpu : usr=0.00%, sys=4.20%, ctx=81, 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=144658: Fri Aug 14 09:37:19 2026 read: IOPS=0, BW=445KiB/s (456kB/s)(2048KiB/4599msec) clat (usec): min=153455, max=153864, avg=153660.11, stdev=288.95 lat (usec): min=153457, max=153867, avg=153662.15, stdev=289.99 clat percentiles (msec): | 1.00th=[ 155], 5.00th=[ 155], 10.00th=[ 155], 20.00th=[ 155], | 30.00th=[ 155], 40.00th=[ 155], 50.00th=[ 155], 60.00th=[ 155], | 70.00th=[ 155], 80.00th=[ 155], 90.00th=[ 155], 95.00th=[ 155], | 99.00th=[ 155], 99.50th=[ 155], 99.90th=[ 155], 99.95th=[ 155], | 99.99th=[ 155] bw ( KiB/s): min= 1532, max= 1973, per=41.95%, avg=1752.50, stdev=311.83, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2227KiB/s (2280kB/s)(10.0MiB/4599msec); 0 zone resets clat (msec): min=184, max=1273, avg=396.53, stdev=325.09 lat (msec): min=184, max=1273, avg=396.78, stdev=325.08 clat percentiles (msec): | 1.00th=[ 184], 5.00th=[ 184], 10.00th=[ 184], 20.00th=[ 203], | 30.00th=[ 209], 40.00th=[ 245], 50.00th=[ 251], 60.00th=[ 342], | 70.00th=[ 355], 80.00th=[ 380], 90.00th=[ 523], 95.00th=[ 1267], | 99.00th=[ 1267], 99.50th=[ 1267], 99.90th=[ 1267], 99.95th=[ 1267], | 99.99th=[ 1267] bw ( KiB/s): min= 1950, max= 4096, per=43.40%, avg=2539.17, stdev=891.87, samples=6 iops : min= 1, max= 4, avg= 1.83, stdev= 1.33, samples=6 lat (msec) : 250=58.33%, 500=25.00%, 750=8.33%, 2000=8.33% cpu : usr=0.00%, sys=4.02%, ctx=89, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144659: Fri Aug 14 09:37:19 2026 read: IOPS=1, BW=1389KiB/s (1423kB/s)(6144KiB/4422msec) clat (msec): min=83, max=351, avg=239.56, stdev=93.07 lat (msec): min=83, max=351, avg=239.56, stdev=93.07 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 84], 10.00th=[ 84], 20.00th=[ 226], | 30.00th=[ 226], 40.00th=[ 226], 50.00th=[ 226], 60.00th=[ 234], | 70.00th=[ 317], 80.00th=[ 317], 90.00th=[ 351], 95.00th=[ 351], | 99.00th=[ 351], 99.50th=[ 351], 99.90th=[ 351], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 1560, max= 2048, per=45.77%, avg=1912.20, stdev=200.29, samples=5 iops : min= 1, max= 2, avg= 1.20, stdev= 0.45, samples=5 write: IOPS=1, BW=1389KiB/s (1423kB/s)(6144KiB/4422msec); 0 zone resets clat (msec): min=297, max=735, avg=463.57, stdev=161.88 lat (msec): min=298, max=736, avg=463.65, stdev=161.86 clat percentiles (msec): | 1.00th=[ 300], 5.00th=[ 300], 10.00th=[ 300], 20.00th=[ 305], | 30.00th=[ 305], 40.00th=[ 443], 50.00th=[ 443], 60.00th=[ 485], | 70.00th=[ 518], 80.00th=[ 518], 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= 1560, max= 3744, per=39.74%, avg=2325.00, stdev=968.49, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (msec) : 100=8.33%, 250=25.00%, 500=50.00%, 750=16.67% cpu : usr=0.00%, sys=3.19%, ctx=72, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144660: Fri Aug 14 09:37:19 2026 read: IOPS=1, BW=1045KiB/s (1070kB/s)(5120KiB/4901msec) clat (msec): min=68, max=343, avg=198.18, stdev=131.87 lat (msec): min=68, max=343, avg=198.19, stdev=131.87 clat percentiles (msec): | 1.00th=[ 69], 5.00th=[ 69], 10.00th=[ 69], 20.00th=[ 69], | 30.00th=[ 109], 40.00th=[ 109], 50.00th=[ 132], 60.00th=[ 132], | 70.00th=[ 338], 80.00th=[ 338], 90.00th=[ 342], 95.00th=[ 342], | 99.00th=[ 342], 99.50th=[ 342], 99.90th=[ 342], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 3121, max= 3946, per=84.57%, avg=3533.50, stdev=583.36, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1463KiB/s (1498kB/s)(7168KiB/4901msec); 0 zone resets clat (msec): min=171, max=917, avg=530.69, stdev=233.57 lat (msec): min=171, max=917, avg=530.77, stdev=233.57 clat percentiles (msec): | 1.00th=[ 171], 5.00th=[ 171], 10.00th=[ 171], 20.00th=[ 388], | 30.00th=[ 472], 40.00th=[ 472], 50.00th=[ 527], 60.00th=[ 550], | 70.00th=[ 550], 80.00th=[ 684], 90.00th=[ 919], 95.00th=[ 919], | 99.00th=[ 919], 99.50th=[ 919], 99.90th=[ 919], 99.95th=[ 919], | 99.99th=[ 919] bw ( KiB/s): min= 1560, max= 2048, per=32.99%, avg=1929.67, stdev=192.96, samples=6 iops : min= 1, max= 2, avg= 1.33, stdev= 0.52, samples=6 lat (msec) : 100=8.33%, 250=25.00%, 500=33.33%, 750=25.00%, 1000=8.33% cpu : usr=0.00%, sys=3.69%, ctx=87, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=4179KiB/s (4279kB/s), 445KiB/s-1468KiB/s (456kB/s-1503kB/s), io=20.0MiB (20.0MB), run=4422-4901msec WRITE: bw=5850KiB/s (5991kB/s), 1049KiB/s-2227KiB/s (1074kB/s-2280kB/s), io=28.0MiB (29.4MB), run=4422-4901msec 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=144668: Fri Aug 14 09:37:31 2026 read: IOPS=0, BW=3987KiB/s (4083kB/s)(12.0MiB/3082msec) clat (msec): min=877, max=1095, avg=991.36, stdev=109.45 lat (msec): min=877, max=1095, avg=991.36, stdev=109.45 clat percentiles (msec): | 1.00th=[ 877], 5.00th=[ 877], 10.00th=[ 877], 20.00th=[ 877], | 30.00th=[ 877], 40.00th=[ 1003], 50.00th=[ 1003], 60.00th=[ 1003], | 70.00th=[ 1099], 80.00th=[ 1099], 90.00th=[ 1099], 95.00th=[ 1099], | 99.00th=[ 1099], 99.50th=[ 1099], 99.90th=[ 1099], 99.95th=[ 1099], | 99.99th=[ 1099] bw ( KiB/s): min= 8143, max= 8159, per=100.00%, avg=8151.00, stdev=11.31, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=33.33%, 2000=66.67% cpu : usr=0.00%, sys=11.62%, ctx=403, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144669: Fri Aug 14 09:37:31 2026 read: IOPS=0, BW=1069KiB/s (1095kB/s)(4096KiB/3831msec) clat (nsec): min=1057.8M, max=1057.8M, avg=1057842146.00, stdev= 0.00 lat (nsec): min=1057.8M, max=1057.8M, avg=1057844124.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1062], 5.00th=[ 1062], 10.00th=[ 1062], 20.00th=[ 1062], | 30.00th=[ 1062], 40.00th=[ 1062], 50.00th=[ 1062], 60.00th=[ 1062], | 70.00th=[ 1062], 80.00th=[ 1062], 90.00th=[ 1062], 95.00th=[ 1062], | 99.00th=[ 1062], 99.50th=[ 1062], 99.90th=[ 1062], 99.95th=[ 1062], | 99.99th=[ 1062] bw ( KiB/s): min= 7787, max= 7787, per=100.00%, avg=7787.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2138KiB/s (2190kB/s)(8192KiB/3831msec); 0 zone resets clat (msec): min=872, max=1814, avg=1343.46, stdev=666.30 lat (msec): min=873, max=1815, avg=1344.11, stdev=666.17 clat percentiles (msec): | 1.00th=[ 869], 5.00th=[ 869], 10.00th=[ 869], 20.00th=[ 869], | 30.00th=[ 869], 40.00th=[ 869], 50.00th=[ 869], 60.00th=[ 1821], | 70.00th=[ 1821], 80.00th=[ 1821], 90.00th=[ 1821], 95.00th=[ 1821], | 99.00th=[ 1821], 99.50th=[ 1821], 99.90th=[ 1821], 99.95th=[ 1821], | 99.99th=[ 1821] bw ( KiB/s): min= 8143, max= 8143, per=95.21%, avg=8143.00, 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=0.05%, sys=2.51%, ctx=81, 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=144670: Fri Aug 14 09:37:31 2026 write: IOPS=1, BW=5200KiB/s (5325kB/s)(12.0MiB/2363msec); 0 zone resets clat (msec): min=374, max=1154, avg=777.15, stdev=391.02 lat (msec): min=374, max=1155, avg=778.46, stdev=391.17 clat percentiles (msec): | 1.00th=[ 376], 5.00th=[ 376], 10.00th=[ 376], 20.00th=[ 376], | 30.00th=[ 376], 40.00th=[ 802], 50.00th=[ 802], 60.00th=[ 802], | 70.00th=[ 1150], 80.00th=[ 1150], 90.00th=[ 1150], 95.00th=[ 1150], | 99.00th=[ 1150], 99.50th=[ 1150], 99.90th=[ 1150], 99.95th=[ 1150], | 99.99th=[ 1150] bw ( KiB/s): min= 5859, max= 7787, per=79.77%, avg=6823.00, stdev=1363.30, 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=3.85%, ctx=37, 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=144671: Fri Aug 14 09:37:31 2026 write: IOPS=1, BW=4648KiB/s (4759kB/s)(12.0MiB/2644msec); 0 zone resets clat (msec): min=286, max=1951, avg=850.73, stdev=953.29 lat (msec): min=286, max=1952, avg=851.47, stdev=953.92 clat percentiles (msec): | 1.00th=[ 288], 5.00th=[ 288], 10.00th=[ 288], 20.00th=[ 288], | 30.00th=[ 288], 40.00th=[ 313], 50.00th=[ 313], 60.00th=[ 313], | 70.00th=[ 1955], 80.00th=[ 1955], 90.00th=[ 1955], 95.00th=[ 1955], | 99.00th=[ 1955], 99.50th=[ 1955], 99.90th=[ 1955], 99.95th=[ 1955], | 99.99th=[ 1955] bw ( KiB/s): min= 6511, max= 6511, per=76.13%, avg=6511.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=66.67%, 2000=33.33% cpu : usr=0.00%, sys=4.96%, ctx=62, 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=4277KiB/s (4379kB/s), 1069KiB/s-3987KiB/s (1095kB/s-4083kB/s), io=16.0MiB (16.8MB), run=3082-3831msec WRITE: bw=8553KiB/s (8759kB/s), 2138KiB/s-5200KiB/s (2190kB/s-5325kB/s), io=32.0MiB (33.6MB), run=2363-3831msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144673: Fri Aug 14 09:37:32 2026 read: IOPS=1, BW=4344KiB/s (4448kB/s)(12.0MiB/2829msec) clat (msec): min=400, max=1291, avg=904.68, stdev=456.97 lat (msec): min=400, max=1291, avg=904.68, stdev=456.97 clat percentiles (msec): | 1.00th=[ 401], 5.00th=[ 401], 10.00th=[ 401], 20.00th=[ 401], | 30.00th=[ 401], 40.00th=[ 1020], 50.00th=[ 1020], 60.00th=[ 1020], | 70.00th=[ 1284], 80.00th=[ 1284], 90.00th=[ 1284], 95.00th=[ 1284], | 99.00th=[ 1284], 99.50th=[ 1284], 99.90th=[ 1284], 99.95th=[ 1284], | 99.99th=[ 1284] bw ( KiB/s): min= 7772, max= 8143, per=100.00%, avg=7957.50, stdev=262.34, 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=3.75%, ctx=75, 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=144674: Fri Aug 14 09:37:32 2026 read: IOPS=0, BW=1293KiB/s (1324kB/s)(4096KiB/3169msec) clat (nsec): min=1074.4M, max=1074.4M, avg=1074355439.00, stdev= 0.00 lat (nsec): min=1074.4M, max=1074.4M, avg=1074356828.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1083], 5.00th=[ 1083], 10.00th=[ 1083], 20.00th=[ 1083], | 30.00th=[ 1083], 40.00th=[ 1083], 50.00th=[ 1083], 60.00th=[ 1083], | 70.00th=[ 1083], 80.00th=[ 1083], 90.00th=[ 1083], 95.00th=[ 1083], | 99.00th=[ 1083], 99.50th=[ 1083], 99.90th=[ 1083], 99.95th=[ 1083], | 99.99th=[ 1083] bw ( KiB/s): min= 8159, max= 8159, per=100.00%, avg=8159.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2585KiB/s (2647kB/s)(8192KiB/3169msec); 0 zone resets clat (msec): min=789, max=1303, avg=1046.44, stdev=364.00 lat (msec): min=789, max=1304, avg=1046.75, stdev=363.99 clat percentiles (msec): | 1.00th=[ 793], 5.00th=[ 793], 10.00th=[ 793], 20.00th=[ 793], | 30.00th=[ 793], 40.00th=[ 793], 50.00th=[ 793], 60.00th=[ 1301], | 70.00th=[ 1301], 80.00th=[ 1301], 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= 8143, max= 8143, per=78.75%, avg=8143.00, 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=5.30%, ctx=61, 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=144675: Fri Aug 14 09:37:32 2026 write: IOPS=0, BW=3987KiB/s (4083kB/s)(12.0MiB/3082msec); 0 zone resets clat (msec): min=643, max=1597, avg=1010.89, stdev=513.53 lat (msec): min=644, max=1598, avg=1011.30, stdev=513.54 clat percentiles (msec): | 1.00th=[ 642], 5.00th=[ 642], 10.00th=[ 642], 20.00th=[ 642], | 30.00th=[ 642], 40.00th=[ 793], 50.00th=[ 793], 60.00th=[ 793], | 70.00th=[ 1603], 80.00th=[ 1603], 90.00th=[ 1603], 95.00th=[ 1603], | 99.00th=[ 1603], 99.50th=[ 1603], 99.90th=[ 1603], 99.95th=[ 1603], | 99.99th=[ 1603] bw ( KiB/s): min= 8143, max= 8159, per=78.83%, avg=8151.00, stdev=11.31, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.06%, sys=3.80%, ctx=42, 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=144676: Fri Aug 14 09:37:32 2026 write: IOPS=1, BW=5189KiB/s (5314kB/s)(12.0MiB/2368msec); 0 zone resets clat (msec): min=388, max=1461, avg=788.30, stdev=586.30 lat (msec): min=388, max=1461, avg=788.70, stdev=586.26 clat percentiles (msec): | 1.00th=[ 388], 5.00th=[ 388], 10.00th=[ 388], 20.00th=[ 388], | 30.00th=[ 388], 40.00th=[ 514], 50.00th=[ 514], 60.00th=[ 514], | 70.00th=[ 1469], 80.00th=[ 1469], 90.00th=[ 1469], 95.00th=[ 1469], | 99.00th=[ 1469], 99.50th=[ 1469], 99.90th=[ 1469], 99.95th=[ 1469], | 99.99th=[ 1469] bw ( KiB/s): min= 6703, max= 8126, per=71.71%, avg=7414.50, stdev=1006.21, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.00%, sys=3.80%, 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=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=5170KiB/s (5294kB/s), 1293KiB/s-4344KiB/s (1324kB/s-4448kB/s), io=16.0MiB (16.8MB), run=2829-3169msec WRITE: bw=10.1MiB/s (10.6MB/s), 2585KiB/s-5189KiB/s (2647kB/s-5314kB/s), io=32.0MiB (33.6MB), run=2368-3169msec