== sanity test 398b: DIO and buffer IO race ============== 12:12:35 (1790957555) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 2.96647 s, 17.0 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=181717: Fri Oct 2 12:13:47 2026 read: IOPS=23, BW=95.5KiB/s (97.8kB/s)(5992KiB/62760msec) clat (usec): min=34, max=1071.8k, avg=22934.73, stdev=29304.88 lat (usec): min=34, max=1071.8k, avg=22935.54, stdev=29304.90 clat percentiles (usec): | 1.00th=[ 184], 5.00th=[ 8586], 10.00th=[ 10552], | 20.00th=[ 13304], 30.00th=[ 15664], 40.00th=[ 17957], | 50.00th=[ 20579], 60.00th=[ 23200], 70.00th=[ 26346], | 80.00th=[ 29492], 90.00th=[ 35390], 95.00th=[ 42730], | 99.00th=[ 63177], 99.50th=[ 66323], 99.90th=[ 91751], | 99.95th=[1069548], 99.99th=[1069548] bw ( KiB/s): min= 6, max= 174, per=25.07%, avg=95.76, stdev=25.31, samples=123 iops : min= 1, max= 43, avg=23.56, stdev= 6.36, samples=123 write: IOPS=25, BW=100KiB/s (103kB/s)(6296KiB/62760msec); 0 zone resets clat (usec): min=673, max=76043, avg=17882.83, stdev=12688.19 lat (usec): min=673, max=76044, avg=17883.84, stdev=12688.21 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 2999], 10.00th=[ 4047], 20.00th=[ 5604], | 30.00th=[ 9372], 40.00th=[12649], 50.00th=[15270], 60.00th=[19530], | 70.00th=[22676], 80.00th=[27919], 90.00th=[35914], 95.00th=[41681], | 99.00th=[55837], 99.50th=[63177], 99.90th=[76022], 99.95th=[76022], | 99.99th=[76022] bw ( KiB/s): min= 31, max= 175, per=25.27%, avg=101.09, stdev=28.13, samples=122 iops : min= 7, max= 43, avg=24.89, stdev= 7.04, samples=122 lat (usec) : 50=0.03%, 100=0.10%, 250=0.75%, 500=0.03%, 750=0.03% lat (usec) : 1000=0.23% lat (msec) : 2=0.88%, 4=3.81%, 10=14.78%, 20=34.47%, 50=42.90% lat (msec) : 100=1.95%, 2000=0.03% cpu : usr=0.10%, sys=26.57%, ctx=9730, 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=181718: Fri Oct 2 12:13:47 2026 read: IOPS=24, BW=96.4KiB/s (98.7kB/s)(5940KiB/61596msec) clat (usec): min=42, max=88592, avg=21500.37, stdev=10229.65 lat (usec): min=42, max=88593, avg=21501.21, stdev=10229.77 clat percentiles (usec): | 1.00th=[ 178], 5.00th=[ 8455], 10.00th=[10552], 20.00th=[13042], | 30.00th=[15139], 40.00th=[17433], 50.00th=[20055], 60.00th=[22938], | 70.00th=[25822], 80.00th=[29230], 90.00th=[34341], 95.00th=[39060], | 99.00th=[52691], 99.50th=[57410], 99.90th=[69731], 99.95th=[88605], | 99.99th=[88605] bw ( KiB/s): min= 6, max= 167, per=25.40%, avg=97.02, stdev=23.75, samples=121 iops : min= 1, max= 41, avg=23.88, stdev= 5.94, samples=121 write: IOPS=25, BW=103KiB/s (106kB/s)(6348KiB/61596msec); 0 zone resets clat (usec): min=627, max=1063.6k, avg=18531.59, stdev=29188.27 lat (usec): min=628, max=1063.6k, avg=18532.76, stdev=29188.19 clat percentiles (usec): | 1.00th=[ 1090], 5.00th=[ 2868], 10.00th=[ 4113], | 20.00th=[ 5800], 30.00th=[ 8979], 40.00th=[ 12256], | 50.00th=[ 15533], 60.00th=[ 18744], 70.00th=[ 23200], | 80.00th=[ 28443], 90.00th=[ 35914], 95.00th=[ 41157], | 99.00th=[ 57934], 99.50th=[ 64226], 99.90th=[ 68682], | 99.95th=[1061159], 99.99th=[1061159] bw ( KiB/s): min= 40, max= 207, per=26.07%, avg=104.30, stdev=30.01, samples=120 iops : min= 10, max= 51, avg=25.71, stdev= 7.52, samples=120 lat (usec) : 50=0.03%, 100=0.10%, 250=0.72%, 500=0.13%, 750=0.10% lat (usec) : 1000=0.29% lat (msec) : 2=0.85%, 4=3.61%, 10=15.56%, 20=35.12%, 50=41.73% lat (msec) : 100=1.73%, 2000=0.03% cpu : usr=0.14%, sys=26.84%, ctx=9761, 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=181719: Fri Oct 2 12:13:47 2026 read: IOPS=24, BW=96.6KiB/s (98.0kB/s)(6028KiB/62373msec) clat (usec): min=38, max=94298, avg=21630.47, stdev=10641.44 lat (usec): min=39, max=94299, avg=21631.38, stdev=10641.45 clat percentiles (usec): | 1.00th=[ 159], 5.00th=[ 8455], 10.00th=[10552], 20.00th=[13304], | 30.00th=[15270], 40.00th=[17433], 50.00th=[20317], 60.00th=[22414], | 70.00th=[25560], 80.00th=[29230], 90.00th=[34341], 95.00th=[40633], | 99.00th=[57410], 99.50th=[61080], 99.90th=[81265], 99.95th=[93848], | 99.99th=[93848] bw ( KiB/s): min= 47, max= 168, per=25.69%, avg=98.12, stdev=24.29, samples=122 iops : min= 11, max= 42, avg=24.16, stdev= 6.05, samples=122 write: IOPS=25, BW=100KiB/s (103kB/s)(6260KiB/62373msec); 0 zone resets clat (usec): min=582, max=1059.9k, avg=18852.39, stdev=29619.12 lat (usec): min=583, max=1059.9k, avg=18855.18, stdev=29621.07 clat percentiles (usec): | 1.00th=[ 1004], 5.00th=[ 2835], 10.00th=[ 4015], | 20.00th=[ 5669], 30.00th=[ 9241], 40.00th=[ 12780], | 50.00th=[ 15795], 60.00th=[ 18482], 70.00th=[ 22938], | 80.00th=[ 27657], 90.00th=[ 36439], 95.00th=[ 44827], | 99.00th=[ 63701], 99.50th=[ 68682], 99.90th=[ 92799], | 99.95th=[1061159], 99.99th=[1061159] bw ( KiB/s): min= 39, max= 184, per=25.48%, avg=101.93, stdev=29.58, samples=122 iops : min= 9, max= 46, avg=25.11, stdev= 7.43, samples=122 lat (usec) : 50=0.03%, 100=0.03%, 250=0.91%, 500=0.10%, 750=0.10% lat (usec) : 1000=0.39% lat (msec) : 2=1.01%, 4=3.61%, 10=14.03%, 20=36.59%, 50=40.92% lat (msec) : 100=2.25%, 2000=0.03% cpu : usr=0.08%, sys=26.48%, ctx=9829, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=181720: Fri Oct 2 12:13:47 2026 read: IOPS=24, BW=96.0KiB/s (99.3kB/s)(6052KiB/62421msec) clat (usec): min=72, max=89255, avg=21775.92, stdev=10786.25 lat (usec): min=73, max=89255, avg=21776.87, stdev=10786.23 clat percentiles (usec): | 1.00th=[ 172], 5.00th=[ 8291], 10.00th=[10552], 20.00th=[13042], | 30.00th=[15270], 40.00th=[17433], 50.00th=[20579], 60.00th=[23200], | 70.00th=[26084], 80.00th=[29754], 90.00th=[34341], 95.00th=[39584], | 99.00th=[57934], 99.50th=[66847], 99.90th=[86508], 99.95th=[89654], | 99.99th=[89654] bw ( KiB/s): min= 47, max= 159, per=25.74%, avg=98.34, stdev=21.19, samples=122 iops : min= 11, max= 39, avg=24.20, stdev= 5.31, samples=122 write: IOPS=24, BW=99.9KiB/s (102kB/s)(6236KiB/62421msec); 0 zone resets clat (usec): min=739, max=1038.0k, avg=18743.25, stdev=28884.70 lat (usec): min=740, max=1038.0k, avg=18745.32, stdev=28885.36 clat percentiles (usec): | 1.00th=[ 1467], 5.00th=[ 3163], 10.00th=[ 4359], | 20.00th=[ 5932], 30.00th=[ 9110], 40.00th=[ 12911], | 50.00th=[ 15533], 60.00th=[ 18482], 70.00th=[ 22676], | 80.00th=[ 28181], 90.00th=[ 36963], 95.00th=[ 42206], | 99.00th=[ 59507], 99.50th=[ 69731], 99.90th=[ 78119], | 99.95th=[1035994], 99.99th=[1035994] bw ( KiB/s): min= 19, max= 160, per=25.09%, avg=100.34, stdev=26.37, samples=123 iops : min= 4, max= 40, avg=24.71, stdev= 6.61, samples=123 lat (usec) : 100=0.20%, 250=0.91%, 500=0.03%, 750=0.03%, 1000=0.23% lat (msec) : 2=0.46%, 4=3.45%, 10=15.30%, 20=35.61%, 50=41.80% lat (msec) : 100=1.95%, 2000=0.03% cpu : usr=0.10%, sys=26.69%, ctx=9795, 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=383KiB/s (392kB/s), 95.5KiB/s-96.0KiB/s (97.8kB/s-99.3kB/s), io=23.4MiB (24.6MB), run=61596-62760msec WRITE: bw=401KiB/s (410kB/s), 99.9KiB/s-103KiB/s (102kB/s-106kB/s), io=24.6MiB (25.7MB), run=61596-62760msec rand-rw: (groupid=0, jobs=1): err= 0: pid=181712: Fri Oct 2 12:13:54 2026 read: IOPS=21, BW=85.6KiB/s (87.6kB/s)(5992KiB/70006msec) clat (msec): min=2, max=1076, avg=20.24, stdev=31.35 lat (msec): min=2, max=1076, avg=20.24, stdev=31.35 clat percentiles (msec): | 1.00th=[ 4], 5.00th=[ 5], 10.00th=[ 6], 20.00th=[ 7], | 30.00th=[ 10], 40.00th=[ 13], 50.00th=[ 15], 60.00th=[ 18], | 70.00th=[ 23], 80.00th=[ 29], 90.00th=[ 43], 95.00th=[ 54], | 99.00th=[ 74], 99.50th=[ 78], 99.90th=[ 99], 99.95th=[ 1083], | 99.99th=[ 1083] bw ( KiB/s): min= 23, max= 320, per=25.20%, avg=86.19, stdev=56.47, samples=137 iops : min= 5, max= 80, avg=21.15, stdev=14.21, samples=137 write: IOPS=22, BW=89.9KiB/s (92.1kB/s)(6296KiB/70006msec); 0 zone resets clat (msec): min=5, max=137, avg=25.03, stdev=16.92 lat (msec): min=5, max=137, avg=25.03, stdev=16.92 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 8], 10.00th=[ 9], 20.00th=[ 11], | 30.00th=[ 13], 40.00th=[ 17], 50.00th=[ 21], 60.00th=[ 27], | 70.00th=[ 31], 80.00th=[ 39], 90.00th=[ 48], 95.00th=[ 57], | 99.00th=[ 79], 99.50th=[ 91], 99.90th=[ 120], 99.95th=[ 138], | 99.99th=[ 138] bw ( KiB/s): min= 23, max= 328, per=25.24%, avg=90.63, stdev=58.20, samples=137 iops : min= 5, max= 82, avg=22.26, stdev=14.65, samples=137 lat (msec) : 4=0.91%, 10=23.93%, 20=32.06%, 50=35.77%, 100=7.16% lat (msec) : 250=0.13%, 2000=0.03% cpu : usr=0.11%, sys=12.38%, ctx=5977, 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=181713: Fri Oct 2 12:13:54 2026 read: IOPS=21, BW=85.6KiB/s (87.6kB/s)(5940KiB/69398msec) clat (msec): min=2, max=1057, avg=20.06, stdev=30.62 lat (msec): min=2, max=1057, avg=20.06, stdev=30.62 clat percentiles (msec): | 1.00th=[ 4], 5.00th=[ 6], 10.00th=[ 6], 20.00th=[ 8], | 30.00th=[ 10], 40.00th=[ 13], 50.00th=[ 16], 60.00th=[ 18], | 70.00th=[ 22], 80.00th=[ 29], 90.00th=[ 42], 95.00th=[ 51], | 99.00th=[ 68], 99.50th=[ 73], 99.90th=[ 113], 99.95th=[ 1062], | 99.99th=[ 1062] bw ( KiB/s): min= 15, max= 344, per=25.34%, avg=86.65, stdev=56.33, samples=136 iops : min= 3, max= 86, avg=21.26, stdev=14.19, samples=136 write: IOPS=22, BW=91.5KiB/s (93.7kB/s)(6348KiB/69398msec); 0 zone resets clat (usec): min=5151, max=99795, avg=24776.53, stdev=16359.87 lat (usec): min=5153, max=99796, avg=24777.70, stdev=16359.93 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 8], 10.00th=[ 9], 20.00th=[ 11], | 30.00th=[ 14], 40.00th=[ 17], 50.00th=[ 21], 60.00th=[ 26], | 70.00th=[ 31], 80.00th=[ 38], 90.00th=[ 48], 95.00th=[ 56], | 99.00th=[ 80], 99.50th=[ 92], 99.90th=[ 99], 99.95th=[ 101], | 99.99th=[ 101] bw ( KiB/s): min= 39, max= 312, per=25.79%, avg=92.58, stdev=55.83, samples=136 iops : min= 9, max= 78, avg=22.75, stdev=14.04, samples=136 lat (msec) : 4=0.52%, 10=23.21%, 20=34.05%, 50=35.51%, 100=6.64% lat (msec) : 250=0.03%, 2000=0.03% cpu : usr=0.10%, sys=12.77%, ctx=6024, 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=181714: Fri Oct 2 12:13:54 2026 read: IOPS=21, BW=86.3KiB/s (88.4kB/s)(6028KiB/69858msec) clat (msec): min=2, max=112, avg=19.63, stdev=15.51 lat (msec): min=2, max=112, avg=19.63, stdev=15.51 clat percentiles (msec): | 1.00th=[ 4], 5.00th=[ 5], 10.00th=[ 6], 20.00th=[ 7], | 30.00th=[ 10], 40.00th=[ 13], 50.00th=[ 16], 60.00th=[ 18], | 70.00th=[ 23], 80.00th=[ 30], 90.00th=[ 42], 95.00th=[ 52], | 99.00th=[ 71], 99.50th=[ 82], 99.90th=[ 97], 99.95th=[ 113], | 99.99th=[ 113] bw ( KiB/s): min= 15, max= 360, per=25.54%, avg=87.35, stdev=61.11, samples=137 iops : min= 3, max= 90, avg=21.45, stdev=15.38, samples=137 write: IOPS=22, BW=89.6KiB/s (91.8kB/s)(6260KiB/69858msec); 0 zone resets clat (msec): min=4, max=1054, avg=25.55, stdev=30.67 lat (msec): min=4, max=1054, avg=25.55, stdev=30.67 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 8], 10.00th=[ 9], 20.00th=[ 11], | 30.00th=[ 14], 40.00th=[ 17], 50.00th=[ 21], 60.00th=[ 26], | 70.00th=[ 31], 80.00th=[ 38], 90.00th=[ 48], 95.00th=[ 57], | 99.00th=[ 78], 99.50th=[ 90], 99.90th=[ 120], 99.95th=[ 1053], | 99.99th=[ 1053] bw ( KiB/s): min= 24, max= 272, per=25.28%, avg=90.74, stdev=54.66, samples=137 iops : min= 6, max= 68, avg=22.29, stdev=13.76, samples=137 lat (msec) : 4=0.88%, 10=23.08%, 20=32.91%, 50=36.23%, 100=6.71% lat (msec) : 250=0.16%, 2000=0.03% cpu : usr=0.12%, sys=12.48%, ctx=6026, 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=181716: Fri Oct 2 12:13:54 2026 read: IOPS=21, BW=86.6KiB/s (88.7kB/s)(6052KiB/69894msec) clat (msec): min=3, max=100, avg=19.90, stdev=15.32 lat (msec): min=3, max=100, avg=19.91, stdev=15.32 clat percentiles (msec): | 1.00th=[ 4], 5.00th=[ 5], 10.00th=[ 6], 20.00th=[ 8], | 30.00th=[ 11], 40.00th=[ 13], 50.00th=[ 16], 60.00th=[ 19], | 70.00th=[ 23], 80.00th=[ 30], 90.00th=[ 43], 95.00th=[ 53], | 99.00th=[ 71], 99.50th=[ 75], 99.90th=[ 94], 99.95th=[ 101], | 99.99th=[ 101] bw ( KiB/s): min= 16, max= 352, per=25.63%, avg=87.65, stdev=57.99, samples=137 iops : min= 4, max= 88, avg=21.52, stdev=14.59, samples=137 write: IOPS=22, BW=89.2KiB/s (91.4kB/s)(6236KiB/69894msec); 0 zone resets clat (msec): min=4, max=1049, avg=25.33, stdev=30.98 lat (msec): min=4, max=1049, avg=25.33, stdev=30.98 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 8], 10.00th=[ 9], 20.00th=[ 11], | 30.00th=[ 13], 40.00th=[ 17], 50.00th=[ 21], 60.00th=[ 25], | 70.00th=[ 31], 80.00th=[ 37], 90.00th=[ 48], 95.00th=[ 56], | 99.00th=[ 80], 99.50th=[ 99], 99.90th=[ 128], 99.95th=[ 1053], | 99.99th=[ 1053] bw ( KiB/s): min= 39, max= 304, per=25.13%, avg=90.21, stdev=57.03, samples=137 iops : min= 9, max= 76, avg=22.16, stdev=14.35, samples=137 lat (msec) : 4=0.65%, 10=23.24%, 20=33.07%, 50=35.61%, 100=7.19% lat (msec) : 250=0.20%, 2000=0.03% cpu : usr=0.11%, sys=12.44%, ctx=5999, 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=343KiB/s (351kB/s), 85.6KiB/s-86.6KiB/s (87.6kB/s-88.7kB/s), io=23.4MiB (24.6MB), run=69398-70006msec WRITE: bw=359KiB/s (368kB/s), 89.2KiB/s-91.5KiB/s (91.4kB/s-93.7kB/s), io=24.6MiB (25.7MB), run=69398-70006msec 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=181751: Fri Oct 2 12:14:19 2026 read: IOPS=20, BW=324KiB/s (331kB/s)(5920KiB/18297msec) clat (usec): min=73, max=73349, avg=24865.53, stdev=12438.74 lat (usec): min=73, max=73396, avg=24866.63, stdev=12439.28 clat percentiles (usec): | 1.00th=[ 120], 5.00th=[ 9372], 10.00th=[12256], 20.00th=[15270], | 30.00th=[18220], 40.00th=[20579], 50.00th=[22676], 60.00th=[25822], | 70.00th=[29754], 80.00th=[34341], 90.00th=[41157], 95.00th=[46400], | 99.00th=[68682], 99.50th=[69731], 99.90th=[72877], 99.95th=[72877], | 99.99th=[72877] bw ( KiB/s): min= 158, max= 509, per=25.19%, avg=321.39, stdev=82.39, samples=36 iops : min= 9, max= 31, avg=19.64, stdev= 5.20, samples=36 write: IOPS=21, BW=348KiB/s (356kB/s)(6368KiB/18297msec); 0 zone resets clat (usec): min=1264, max=74950, avg=22621.40, stdev=14493.92 lat (usec): min=1265, max=74953, avg=22623.13, stdev=14494.04 clat percentiles (usec): | 1.00th=[ 1745], 5.00th=[ 4686], 10.00th=[ 6849], 20.00th=[ 9503], | 30.00th=[13173], 40.00th=[15926], 50.00th=[18744], 60.00th=[23462], | 70.00th=[28443], 80.00th=[35390], 90.00th=[41157], 95.00th=[51643], | 99.00th=[67634], 99.50th=[71828], 99.90th=[74974], 99.95th=[74974], | 99.99th=[74974] bw ( KiB/s): min= 63, max= 576, per=25.90%, avg=347.53, stdev=97.19, samples=36 iops : min= 3, max= 36, avg=21.28, stdev= 6.18, samples=36 lat (usec) : 100=0.26%, 250=1.43%, 500=0.26%, 1000=0.13% lat (msec) : 2=0.52%, 4=1.04%, 10=9.90%, 20=31.90%, 50=49.87% lat (msec) : 100=4.69% cpu : usr=0.10%, sys=29.08%, ctx=3080, 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=181752: Fri Oct 2 12:14:19 2026 read: IOPS=19, BW=318KiB/s (326kB/s)(5744KiB/18035msec) clat (usec): min=107, max=95604, avg=25494.23, stdev=12523.54 lat (usec): min=108, max=95605, avg=25495.23, stdev=12523.48 clat percentiles (usec): | 1.00th=[ 151], 5.00th=[11338], 10.00th=[13304], 20.00th=[16909], | 30.00th=[18744], 40.00th=[21103], 50.00th=[23200], 60.00th=[25822], | 70.00th=[29230], 80.00th=[32900], 90.00th=[39060], 95.00th=[47973], | 99.00th=[67634], 99.50th=[80217], 99.90th=[95945], 99.95th=[95945], | 99.99th=[95945] bw ( KiB/s): min= 159, max= 480, per=25.02%, avg=319.23, stdev=81.82, samples=35 iops : min= 9, max= 30, avg=19.49, stdev= 5.16, samples=35 write: IOPS=22, BW=363KiB/s (372kB/s)(6544KiB/18035msec); 0 zone resets clat (usec): min=1424, max=97380, avg=21627.40, stdev=14327.91 lat (usec): min=1426, max=97382, avg=21631.88, stdev=14330.63 clat percentiles (usec): | 1.00th=[ 2868], 5.00th=[ 4883], 10.00th=[ 6587], 20.00th=[ 8717], | 30.00th=[11600], 40.00th=[15270], 50.00th=[18482], 60.00th=[22414], | 70.00th=[26346], 80.00th=[33817], 90.00th=[41157], 95.00th=[49546], | 99.00th=[62653], 99.50th=[66323], 99.90th=[96994], 99.95th=[96994], | 99.99th=[96994] bw ( KiB/s): min= 222, max= 576, per=26.82%, avg=359.91, stdev=95.55, samples=35 iops : min= 13, max= 36, avg=22.03, stdev= 6.00, samples=35 lat (usec) : 250=1.04%, 500=0.13% lat (msec) : 2=0.26%, 4=0.91%, 10=12.63%, 20=30.73%, 50=50.00% lat (msec) : 100=4.30% cpu : usr=0.11%, sys=29.39%, ctx=2963, 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=181753: Fri Oct 2 12:14:19 2026 read: IOPS=20, BW=333KiB/s (341kB/s)(6256KiB/18770msec) clat (usec): min=64, max=102433, avg=25679.73, stdev=12864.61 lat (usec): min=65, max=102435, avg=25680.72, stdev=12864.68 clat percentiles (usec): | 1.00th=[ 169], 5.00th=[ 9634], 10.00th=[ 11994], 20.00th=[ 15270], | 30.00th=[ 18744], 40.00th=[ 21365], 50.00th=[ 23462], 60.00th=[ 26346], | 70.00th=[ 30802], 80.00th=[ 34866], 90.00th=[ 41681], 95.00th=[ 50594], | 99.00th=[ 62653], 99.50th=[ 69731], 99.90th=[102237], 99.95th=[102237], | 99.99th=[102237] bw ( KiB/s): min= 160, max= 576, per=26.25%, avg=335.00, stdev=99.36, samples=37 iops : min= 10, max= 36, avg=20.49, stdev= 6.33, samples=37 write: IOPS=20, BW=321KiB/s (329kB/s)(6032KiB/18770msec); 0 zone resets clat (usec): min=876, max=89870, avg=22849.82, stdev=15179.98 lat (usec): min=877, max=89872, avg=22851.92, stdev=15180.63 clat percentiles (usec): | 1.00th=[ 2343], 5.00th=[ 4817], 10.00th=[ 6521], 20.00th=[10028], | 30.00th=[12780], 40.00th=[15270], 50.00th=[19792], 60.00th=[23987], | 70.00th=[28967], 80.00th=[34866], 90.00th=[45351], 95.00th=[52167], | 99.00th=[68682], 99.50th=[70779], 99.90th=[89654], 99.95th=[89654], | 99.99th=[89654] bw ( KiB/s): min= 158, max= 736, per=23.85%, avg=320.08, stdev=111.86, samples=37 iops : min= 9, max= 46, avg=19.57, stdev= 7.14, samples=37 lat (usec) : 100=0.26%, 250=1.17%, 1000=0.13% lat (msec) : 2=0.26%, 4=1.30%, 10=9.51%, 20=29.30%, 50=52.47% lat (msec) : 100=5.47%, 250=0.13% cpu : usr=0.10%, sys=27.63%, ctx=3049, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=181754: Fri Oct 2 12:14:19 2026 read: IOPS=20, BW=331KiB/s (339kB/s)(6032KiB/18234msec) clat (usec): min=55, max=98014, avg=25445.10, stdev=12522.56 lat (usec): min=56, max=98015, avg=25446.00, stdev=12522.58 clat percentiles (usec): | 1.00th=[ 123], 5.00th=[ 6718], 10.00th=[10683], 20.00th=[16188], | 30.00th=[19530], 40.00th=[21890], 50.00th=[24249], 60.00th=[27395], | 70.00th=[30278], 80.00th=[33817], 90.00th=[40633], 95.00th=[47973], | 99.00th=[58983], 99.50th=[66323], 99.90th=[98042], 99.95th=[98042], | 99.99th=[98042] bw ( KiB/s): min= 222, max= 605, per=25.77%, avg=328.83, stdev=78.82, samples=36 iops : min= 13, max= 37, avg=20.11, stdev= 4.86, samples=36 write: IOPS=21, BW=343KiB/s (351kB/s)(6256KiB/18234msec); 0 zone resets clat (usec): min=2134, max=78599, avg=21826.81, stdev=13502.47 lat (usec): min=2135, max=78601, avg=21830.79, stdev=13506.68 clat percentiles (usec): | 1.00th=[ 3163], 5.00th=[ 5276], 10.00th=[ 7504], 20.00th=[10552], | 30.00th=[13173], 40.00th=[16057], 50.00th=[19006], 60.00th=[22152], | 70.00th=[25560], 80.00th=[31851], 90.00th=[39584], 95.00th=[49546], | 99.00th=[65274], 99.50th=[78119], 99.90th=[78119], 99.95th=[78119], | 99.99th=[78119] bw ( KiB/s): min= 160, max= 640, per=25.62%, avg=343.78, stdev=97.82, samples=36 iops : min= 10, max= 40, avg=21.03, stdev= 6.20, samples=36 lat (usec) : 100=0.13%, 250=1.95%, 500=0.26% lat (msec) : 4=1.30%, 10=9.90%, 20=29.04%, 50=53.26%, 100=4.17% cpu : usr=0.12%, sys=28.72%, ctx=2996, 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=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=1276KiB/s (1307kB/s), 318KiB/s-333KiB/s (326kB/s-341kB/s), io=23.4MiB (24.5MB), run=18035-18770msec WRITE: bw=1343KiB/s (1375kB/s), 321KiB/s-363KiB/s (329kB/s-372kB/s), io=24.6MiB (25.8MB), run=18035-18770msec rand-rw: (groupid=0, jobs=1): err= 0: pid=181746: Fri Oct 2 12:14:20 2026 read: IOPS=18, BW=290KiB/s (297kB/s)(5920KiB/20395msec) clat (msec): min=3, max=118, avg=22.76, stdev=17.13 lat (msec): min=3, max=118, avg=22.76, stdev=17.13 clat percentiles (msec): | 1.00th=[ 4], 5.00th=[ 6], 10.00th=[ 7], 20.00th=[ 9], | 30.00th=[ 13], 40.00th=[ 15], 50.00th=[ 18], 60.00th=[ 21], | 70.00th=[ 26], 80.00th=[ 35], 90.00th=[ 48], 95.00th=[ 56], | 99.00th=[ 83], 99.50th=[ 91], 99.90th=[ 120], 99.95th=[ 120], | 99.99th=[ 120] bw ( KiB/s): min= 127, max= 864, per=23.76%, avg=278.93, stdev=166.02, samples=40 iops : min= 7, max= 54, avg=16.90, stdev=10.49, samples=40 write: IOPS=19, BW=312KiB/s (320kB/s)(6368KiB/20395msec); 0 zone resets clat (msec): min=5, max=103, avg=29.97, stdev=20.07 lat (msec): min=5, max=103, avg=29.97, stdev=20.07 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 8], 10.00th=[ 9], 20.00th=[ 12], | 30.00th=[ 15], 40.00th=[ 19], 50.00th=[ 26], 60.00th=[ 33], | 70.00th=[ 39], 80.00th=[ 48], 90.00th=[ 60], 95.00th=[ 67], | 99.00th=[ 90], 99.50th=[ 95], 99.90th=[ 105], 99.95th=[ 105], | 99.99th=[ 105] bw ( KiB/s): min= 63, max= 992, per=24.72%, avg=305.30, stdev=182.34, samples=40 iops : min= 3, max= 62, avg=18.55, stdev=11.48, samples=40 lat (msec) : 4=0.52%, 10=17.84%, 20=31.25%, 50=36.98%, 100=13.15% lat (msec) : 250=0.26% cpu : usr=0.07%, sys=12.53%, ctx=1676, 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=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=181747: Fri Oct 2 12:14:20 2026 read: IOPS=17, BW=282KiB/s (289kB/s)(5744KiB/20359msec) clat (msec): min=3, max=118, avg=22.15, stdev=16.94 lat (msec): min=3, max=118, avg=22.15, stdev=16.94 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 6], 10.00th=[ 8], 20.00th=[ 10], | 30.00th=[ 13], 40.00th=[ 15], 50.00th=[ 18], 60.00th=[ 20], | 70.00th=[ 25], 80.00th=[ 32], 90.00th=[ 48], 95.00th=[ 62], | 99.00th=[ 79], 99.50th=[ 82], 99.90th=[ 118], 99.95th=[ 118], | 99.99th=[ 118] bw ( KiB/s): min= 64, max= 896, per=23.66%, avg=277.78, stdev=169.26, samples=40 iops : min= 4, max= 56, avg=16.83, stdev=10.70, samples=40 write: IOPS=20, BW=321KiB/s (329kB/s)(6544KiB/20359msec); 0 zone resets clat (msec): min=6, max=121, avg=30.28, stdev=20.52 lat (msec): min=6, max=121, avg=30.28, stdev=20.52 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 8], 10.00th=[ 10], 20.00th=[ 12], | 30.00th=[ 16], 40.00th=[ 21], 50.00th=[ 26], 60.00th=[ 31], | 70.00th=[ 37], 80.00th=[ 47], 90.00th=[ 61], 95.00th=[ 70], | 99.00th=[ 94], 99.50th=[ 99], 99.90th=[ 122], 99.95th=[ 122], | 99.99th=[ 122] bw ( KiB/s): min= 95, max= 960, per=25.27%, avg=312.13, stdev=191.78, samples=40 iops : min= 5, max= 60, avg=18.98, stdev=12.10, samples=40 lat (msec) : 4=0.39%, 10=16.54%, 20=32.55%, 50=37.50%, 100=12.63% lat (msec) : 250=0.39% cpu : usr=0.09%, sys=12.39%, ctx=1680, 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=181748: Fri Oct 2 12:14:20 2026 read: IOPS=19, BW=308KiB/s (315kB/s)(6256KiB/20319msec) clat (usec): min=3940, max=93650, avg=23748.66, stdev=18513.58 lat (usec): min=3941, max=93651, avg=23749.61, stdev=18513.63 clat percentiles (usec): | 1.00th=[ 5080], 5.00th=[ 5932], 10.00th=[ 7373], 20.00th=[ 9241], | 30.00th=[11600], 40.00th=[14615], 50.00th=[16909], 60.00th=[20841], | 70.00th=[25822], 80.00th=[34866], 90.00th=[54789], 95.00th=[65274], | 99.00th=[82314], 99.50th=[90702], 99.90th=[93848], 99.95th=[93848], | 99.99th=[93848] bw ( KiB/s): min= 95, max= 1120, per=26.13%, avg=306.73, stdev=206.85, samples=40 iops : min= 5, max= 70, avg=18.62, stdev=13.02, samples=40 write: IOPS=18, BW=297KiB/s (304kB/s)(6032KiB/20319msec); 0 zone resets clat (msec): min=6, max=104, avg=29.11, stdev=17.64 lat (msec): min=6, max=104, avg=29.11, stdev=17.64 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 22], 50.00th=[ 25], 60.00th=[ 31], | 70.00th=[ 36], 80.00th=[ 43], 90.00th=[ 53], 95.00th=[ 63], | 99.00th=[ 82], 99.50th=[ 104], 99.90th=[ 105], 99.95th=[ 105], | 99.99th=[ 105] bw ( KiB/s): min= 96, max= 896, per=23.58%, avg=291.17, stdev=149.54, samples=40 iops : min= 6, max= 56, avg=17.67, stdev= 9.47, samples=40 lat (msec) : 4=0.13%, 10=15.23%, 20=32.29%, 50=40.89%, 100=11.20% lat (msec) : 250=0.26% cpu : usr=0.08%, sys=12.60%, ctx=1664, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=181749: Fri Oct 2 12:14:20 2026 read: IOPS=18, BW=298KiB/s (305kB/s)(6032KiB/20250msec) clat (msec): min=4, max=119, avg=23.03, stdev=17.73 lat (msec): min=4, max=119, avg=23.03, stdev=17.73 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 10], | 30.00th=[ 12], 40.00th=[ 15], 50.00th=[ 17], 60.00th=[ 21], | 70.00th=[ 26], 80.00th=[ 34], 90.00th=[ 51], 95.00th=[ 64], | 99.00th=[ 77], 99.50th=[ 89], 99.90th=[ 121], 99.95th=[ 121], | 99.99th=[ 121] bw ( KiB/s): min= 63, max= 926, per=25.09%, avg=294.60, stdev=178.76, samples=40 iops : min= 3, max= 57, avg=17.87, stdev=11.29, samples=40 write: IOPS=19, BW=309KiB/s (316kB/s)(6256KiB/20250msec); 0 zone resets clat (msec): min=6, max=109, avg=29.41, stdev=18.17 lat (msec): min=6, max=109, avg=29.41, stdev=18.17 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 26], 60.00th=[ 32], | 70.00th=[ 37], 80.00th=[ 43], 90.00th=[ 55], 95.00th=[ 64], | 99.00th=[ 85], 99.50th=[ 101], 99.90th=[ 110], 99.95th=[ 110], | 99.99th=[ 110] bw ( KiB/s): min= 96, max= 928, per=24.98%, avg=308.50, stdev=166.49, samples=40 iops : min= 6, max= 58, avg=18.75, stdev=10.50, samples=40 lat (msec) : 10=14.97%, 20=35.03%, 50=38.41%, 100=11.20%, 250=0.39% cpu : usr=0.07%, sys=12.65%, ctx=1688, 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=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=1174KiB/s (1203kB/s), 282KiB/s-308KiB/s (289kB/s-315kB/s), io=23.4MiB (24.5MB), run=20250-20395msec WRITE: bw=1236KiB/s (1265kB/s), 297KiB/s-321KiB/s (304kB/s-329kB/s), io=24.6MiB (25.8MB), run=20250-20395msec 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=181765: Fri Oct 2 12:14:31 2026 read: IOPS=1, BW=1625KiB/s (1664kB/s)(7168KiB/4412msec) clat (msec): min=96, max=349, avg=202.62, stdev=82.65 lat (msec): min=96, max=349, avg=202.62, stdev=82.65 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 96], 10.00th=[ 96], 20.00th=[ 146], | 30.00th=[ 178], 40.00th=[ 178], 50.00th=[ 190], 60.00th=[ 194], | 70.00th=[ 194], 80.00th=[ 266], 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= 1939, max= 4087, per=67.65%, avg=2986.25, stdev=1150.58, samples=4 iops : min= 1, max= 3, avg= 2.25, stdev= 0.96, samples=4 write: IOPS=1, BW=1160KiB/s (1188kB/s)(5120KiB/4412msec); 0 zone resets clat (msec): min=169, max=902, avg=566.12, stdev=284.03 lat (msec): min=169, max=902, avg=566.22, stdev=284.05 clat percentiles (msec): | 1.00th=[ 171], 5.00th=[ 171], 10.00th=[ 171], 20.00th=[ 171], | 30.00th=[ 401], 40.00th=[ 401], 50.00th=[ 676], 60.00th=[ 676], | 70.00th=[ 684], 80.00th=[ 684], 90.00th=[ 902], 95.00th=[ 902], | 99.00th=[ 902], 99.50th=[ 902], 99.90th=[ 902], 99.95th=[ 902], | 99.99th=[ 902] bw ( KiB/s): min= 2000, max= 2048, per=32.94%, avg=2036.00, stdev=24.00, samples=4 iops : min= 1, max= 2, avg= 1.75, stdev= 0.50, samples=4 lat (msec) : 100=8.33%, 250=41.67%, 500=25.00%, 750=16.67%, 1000=8.33% cpu : usr=0.00%, sys=17.50%, ctx=212, 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=181767: Fri Oct 2 12:14:31 2026 read: IOPS=0, BW=441KiB/s (452kB/s)(2048KiB/4639msec) clat (msec): min=86, max=174, avg=130.50, stdev=61.83 lat (msec): min=86, max=174, avg=130.50, stdev=61.83 clat percentiles (msec): | 1.00th=[ 87], 5.00th=[ 87], 10.00th=[ 87], 20.00th=[ 87], | 30.00th=[ 87], 40.00th=[ 87], 50.00th=[ 87], 60.00th=[ 176], | 70.00th=[ 176], 80.00th=[ 176], 90.00th=[ 176], 95.00th=[ 176], | 99.00th=[ 176], 99.50th=[ 176], 99.90th=[ 176], 99.95th=[ 176], | 99.99th=[ 176] bw ( KiB/s): min= 1973, max= 2000, per=45.00%, avg=1986.50, stdev=19.09, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2207KiB/s (2260kB/s)(10.0MiB/4639msec); 0 zone resets clat (msec): min=66, max=856, avg=430.35, stdev=251.40 lat (msec): min=66, max=856, avg=430.43, stdev=251.40 clat percentiles (msec): | 1.00th=[ 67], 5.00th=[ 67], 10.00th=[ 67], 20.00th=[ 194], | 30.00th=[ 209], 40.00th=[ 330], 50.00th=[ 363], 60.00th=[ 456], | 70.00th=[ 460], 80.00th=[ 659], 90.00th=[ 718], 95.00th=[ 860], | 99.00th=[ 860], 99.50th=[ 860], 99.90th=[ 860], 99.95th=[ 860], | 99.99th=[ 860] bw ( KiB/s): min= 1939, max= 4096, per=42.01%, avg=2596.29, stdev=992.85, samples=7 iops : min= 1, max= 4, avg= 2.00, stdev= 1.15, samples=7 lat (msec) : 100=16.67%, 250=25.00%, 500=33.33%, 750=16.67%, 1000=8.33% cpu : usr=0.00%, sys=21.91%, ctx=186, 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=181769: Fri Oct 2 12:14:31 2026 read: IOPS=1, BW=1413KiB/s (1447kB/s)(6144KiB/4348msec) clat (msec): min=82, max=207, avg=126.30, stdev=48.84 lat (msec): min=82, max=207, avg=126.30, stdev=48.84 clat percentiles (msec): | 1.00th=[ 83], 5.00th=[ 83], 10.00th=[ 83], 20.00th=[ 87], | 30.00th=[ 87], 40.00th=[ 97], 50.00th=[ 97], 60.00th=[ 126], | 70.00th=[ 159], 80.00th=[ 159], 90.00th=[ 207], 95.00th=[ 207], | 99.00th=[ 207], 99.50th=[ 207], 99.90th=[ 207], 99.95th=[ 207], | 99.99th=[ 207] bw ( KiB/s): min= 1939, max= 4096, per=75.78%, avg=3345.00, stdev=1218.58, samples=3 iops : min= 1, max= 4, avg= 2.67, stdev= 1.53, samples=3 write: IOPS=1, BW=1413KiB/s (1447kB/s)(6144KiB/4348msec); 0 zone resets clat (msec): min=231, max=838, avg=573.68, stdev=264.05 lat (msec): min=231, max=838, avg=573.77, stdev=264.05 clat percentiles (msec): | 1.00th=[ 232], 5.00th=[ 232], 10.00th=[ 232], 20.00th=[ 309], | 30.00th=[ 309], 40.00th=[ 506], 50.00th=[ 506], 60.00th=[ 735], | 70.00th=[ 818], 80.00th=[ 818], 90.00th=[ 835], 95.00th=[ 835], | 99.00th=[ 835], 99.50th=[ 835], 99.90th=[ 835], 99.95th=[ 835], | 99.99th=[ 835] bw ( KiB/s): min= 1939, max= 2048, per=32.61%, avg=2015.60, stdev=47.33, samples=5 iops : min= 1, max= 2, avg= 1.40, stdev= 0.55, samples=5 lat (msec) : 100=25.00%, 250=33.33%, 500=8.33%, 750=16.67%, 1000=16.67% cpu : usr=0.02%, sys=24.59%, 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=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=181770: Fri Oct 2 12:14:31 2026 read: IOPS=1, BW=1341KiB/s (1373kB/s)(5120KiB/3818msec) clat (msec): min=84, max=600, avg=236.50, stdev=207.62 lat (msec): min=84, max=600, avg=236.51, stdev=207.62 clat percentiles (msec): | 1.00th=[ 85], 5.00th=[ 85], 10.00th=[ 85], 20.00th=[ 85], | 30.00th=[ 138], 40.00th=[ 138], 50.00th=[ 165], 60.00th=[ 165], | 70.00th=[ 194], 80.00th=[ 194], 90.00th=[ 600], 95.00th=[ 600], | 99.00th=[ 600], 99.50th=[ 600], 99.90th=[ 600], 99.95th=[ 600], | 99.99th=[ 600] bw ( KiB/s): min= 2000, max= 4096, per=61.14%, avg=2698.67, stdev=1210.13, samples=3 iops : min= 1, max= 4, avg= 2.00, stdev= 1.73, samples=3 write: IOPS=1, BW=1877KiB/s (1922kB/s)(7168KiB/3818msec); 0 zone resets clat (msec): min=138, max=688, avg=373.00, stdev=185.62 lat (msec): min=138, max=688, avg=373.08, stdev=185.63 clat percentiles (msec): | 1.00th=[ 140], 5.00th=[ 140], 10.00th=[ 140], 20.00th=[ 228], | 30.00th=[ 279], 40.00th=[ 279], 50.00th=[ 359], 60.00th=[ 405], | 70.00th=[ 405], 80.00th=[ 518], 90.00th=[ 693], 95.00th=[ 693], | 99.00th=[ 693], 99.50th=[ 693], 99.90th=[ 693], 99.95th=[ 693], | 99.99th=[ 693] bw ( KiB/s): min= 1917, max= 2048, per=32.54%, avg=2011.20, stdev=56.39, samples=5 iops : min= 1, max= 2, avg= 1.40, stdev= 0.55, samples=5 lat (msec) : 100=8.33%, 250=41.67%, 500=25.00%, 750=25.00% cpu : usr=0.00%, sys=13.94%, ctx=289, 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=4415KiB/s (4521kB/s), 441KiB/s-1625KiB/s (452kB/s-1664kB/s), io=20.0MiB (20.0MB), run=3818-4639msec WRITE: bw=6181KiB/s (6329kB/s), 1160KiB/s-2207KiB/s (1188kB/s-2260kB/s), io=28.0MiB (29.4MB), run=3818-4639msec rand-rw: (groupid=0, jobs=1): err= 0: pid=181763: Fri Oct 2 12:14:31 2026 read: IOPS=2, BW=2242KiB/s (2296kB/s)(7168KiB/3197msec) clat (usec): min=528, max=520611, avg=201678.31, stdev=166906.30 lat (usec): min=529, max=520612, avg=201679.44, stdev=166906.28 clat percentiles (usec): | 1.00th=[ 529], 5.00th=[ 529], 10.00th=[ 529], 20.00th=[101188], | 30.00th=[129500], 40.00th=[129500], 50.00th=[152044], 60.00th=[227541], | 70.00th=[227541], 80.00th=[283116], 90.00th=[522191], 95.00th=[522191], | 99.00th=[522191], 99.50th=[522191], 99.90th=[522191], 99.95th=[522191], | 99.99th=[522191] bw ( KiB/s): min= 2048, max= 5720, per=88.72%, avg=3951.67, stdev=1839.74, samples=3 iops : min= 2, max= 5, avg= 3.33, stdev= 1.53, samples=3 write: IOPS=1, BW=1602KiB/s (1640kB/s)(5120KiB/3197msec); 0 zone resets clat (msec): min=157, max=707, avg=354.58, stdev=215.20 lat (msec): min=157, max=707, avg=354.65, stdev=215.18 clat percentiles (msec): | 1.00th=[ 159], 5.00th=[ 159], 10.00th=[ 159], 20.00th=[ 159], | 30.00th=[ 207], 40.00th=[ 207], 50.00th=[ 338], 60.00th=[ 338], | 70.00th=[ 363], 80.00th=[ 363], 90.00th=[ 709], 95.00th=[ 709], | 99.00th=[ 709], 99.50th=[ 709], 99.90th=[ 709], 99.95th=[ 709], | 99.99th=[ 709] bw ( KiB/s): min= 2043, max= 3864, per=42.53%, avg=2651.67, stdev=1049.91, samples=3 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=3 lat (usec) : 750=8.33% lat (msec) : 250=50.00%, 500=25.00%, 750=16.67% cpu : usr=0.00%, sys=52.94%, ctx=811, 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=181764: Fri Oct 2 12:14:31 2026 read: IOPS=0, BW=453KiB/s (464kB/s)(2048KiB/4517msec) clat (msec): min=156, max=247, avg=202.23, stdev=64.12 lat (msec): min=156, max=247, avg=202.23, stdev=64.12 clat percentiles (msec): | 1.00th=[ 157], 5.00th=[ 157], 10.00th=[ 157], 20.00th=[ 157], | 30.00th=[ 157], 40.00th=[ 157], 50.00th=[ 157], 60.00th=[ 249], | 70.00th=[ 249], 80.00th=[ 249], 90.00th=[ 249], 95.00th=[ 249], | 99.00th=[ 249], 99.50th=[ 249], 99.90th=[ 249], 99.95th=[ 249], | 99.99th=[ 249] bw ( KiB/s): min= 1932, max= 1965, per=43.75%, avg=1948.50, stdev=23.33, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2267KiB/s (2321kB/s)(10.0MiB/4517msec); 0 zone resets clat (msec): min=236, max=818, avg=406.64, stdev=165.43 lat (msec): min=236, max=818, avg=406.74, stdev=165.43 clat percentiles (msec): | 1.00th=[ 236], 5.00th=[ 236], 10.00th=[ 236], 20.00th=[ 259], | 30.00th=[ 292], 40.00th=[ 359], 50.00th=[ 368], 60.00th=[ 405], | 70.00th=[ 409], 80.00th=[ 418], 90.00th=[ 502], 95.00th=[ 818], | 99.00th=[ 818], 99.50th=[ 818], 99.90th=[ 818], 99.95th=[ 818], | 99.99th=[ 818] bw ( KiB/s): min= 2048, max= 4087, per=48.62%, avg=3031.50, stdev=1080.25, samples=6 iops : min= 2, max= 3, avg= 2.50, stdev= 0.55, samples=6 lat (msec) : 250=25.00%, 500=58.33%, 750=8.33%, 1000=8.33% cpu : usr=0.02%, sys=50.16%, ctx=609, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=181766: Fri Oct 2 12:14:31 2026 read: IOPS=1, BW=1506KiB/s (1542kB/s)(6144KiB/4081msec) clat (usec): min=720, max=292082, avg=175971.70, stdev=138678.34 lat (usec): min=722, max=292083, avg=175972.99, stdev=138678.12 clat percentiles (usec): | 1.00th=[ 717], 5.00th=[ 717], 10.00th=[ 717], 20.00th=[ 775], | 30.00th=[ 775], 40.00th=[212861], 50.00th=[212861], 60.00th=[258999], | 70.00th=[291505], 80.00th=[291505], 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= 2048, max= 4096, per=76.64%, avg=3413.33, stdev=1182.41, samples=3 iops : min= 2, max= 4, avg= 3.33, stdev= 1.15, samples=3 write: IOPS=1, BW=1506KiB/s (1542kB/s)(6144KiB/4081msec); 0 zone resets clat (msec): min=141, max=1086, avg=492.15, stdev=318.85 lat (msec): min=141, max=1086, avg=492.22, stdev=318.86 clat percentiles (msec): | 1.00th=[ 142], 5.00th=[ 142], 10.00th=[ 142], 20.00th=[ 338], | 30.00th=[ 338], 40.00th=[ 418], 50.00th=[ 418], 60.00th=[ 447], | 70.00th=[ 527], 80.00th=[ 527], 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= 1932, max= 2048, per=32.09%, avg=2000.60, stdev=62.66, samples=5 iops : min= 1, max= 2, avg= 1.40, stdev= 0.55, samples=5 lat (usec) : 750=8.33%, 1000=8.33% lat (msec) : 250=16.67%, 500=50.00%, 750=8.33%, 2000=8.33% cpu : usr=0.00%, sys=39.29%, ctx=601, 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=181768: Fri Oct 2 12:14:31 2026 read: IOPS=1, BW=1114KiB/s (1140kB/s)(5120KiB/4598msec) clat (usec): min=576, max=147773, avg=70327.20, stdev=68172.43 lat (usec): min=578, max=147773, avg=70328.43, stdev=68172.02 clat percentiles (usec): | 1.00th=[ 578], 5.00th=[ 578], 10.00th=[ 578], 20.00th=[ 578], | 30.00th=[ 693], 40.00th=[ 693], 50.00th=[ 79168], 60.00th=[ 79168], | 70.00th=[123208], 80.00th=[123208], 90.00th=[147850], 95.00th=[147850], | 99.00th=[147850], 99.50th=[147850], 99.90th=[147850], 99.95th=[147850], | 99.99th=[147850] bw ( KiB/s): min= 8192, max= 8192, per=100.00%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 8, max= 8, avg= 8.00, stdev= 0.00, samples=1 write: IOPS=1, BW=1559KiB/s (1596kB/s)(7168KiB/4598msec); 0 zone resets clat (msec): min=242, max=1125, avg=599.90, stdev=316.95 lat (msec): min=242, max=1125, avg=599.97, stdev=316.96 clat percentiles (msec): | 1.00th=[ 243], 5.00th=[ 243], 10.00th=[ 243], 20.00th=[ 409], | 30.00th=[ 409], 40.00th=[ 409], 50.00th=[ 464], 60.00th=[ 625], | 70.00th=[ 625], 80.00th=[ 927], 90.00th=[ 1133], 95.00th=[ 1133], | 99.00th=[ 1133], 99.50th=[ 1133], 99.90th=[ 1133], 99.95th=[ 1133], | 99.99th=[ 1133] bw ( KiB/s): min= 1910, max= 3871, per=38.24%, avg=2384.00, stdev=833.35, samples=5 iops : min= 1, max= 3, avg= 1.80, stdev= 0.84, samples=5 lat (usec) : 750=16.67% lat (msec) : 100=8.33%, 250=25.00%, 500=25.00%, 750=8.33%, 1000=8.33% lat (msec) : 2000=8.33% cpu : usr=0.00%, sys=30.69%, ctx=380, 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=4454KiB/s (4561kB/s), 453KiB/s-2242KiB/s (464kB/s-2296kB/s), io=20.0MiB (20.0MB), run=3197-4598msec WRITE: bw=6236KiB/s (6385kB/s), 1506KiB/s-2267KiB/s (1542kB/s-2321kB/s), io=28.0MiB (29.4MB), run=3197-4598msec 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=181777: Fri Oct 2 12:14:41 2026 read: IOPS=1, BW=5678KiB/s (5815kB/s)(12.0MiB/2164msec) clat (msec): min=582, max=766, avg=691.32, stdev=96.67 lat (msec): min=582, max=766, avg=691.32, stdev=96.67 clat percentiles (msec): | 1.00th=[ 584], 5.00th=[ 584], 10.00th=[ 584], 20.00th=[ 584], | 30.00th=[ 584], 40.00th=[ 726], 50.00th=[ 726], 60.00th=[ 726], | 70.00th=[ 768], 80.00th=[ 768], 90.00th=[ 768], 95.00th=[ 768], | 99.00th=[ 768], 99.50th=[ 768], 99.90th=[ 768], 99.95th=[ 768], | 99.99th=[ 768] bw ( KiB/s): min= 8192, max= 8192, per=100.00%, avg=8192.00, stdev= 0.00, samples=2 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=2 lat (msec) : 750=66.67%, 1000=33.33% cpu : usr=0.00%, sys=18.22%, ctx=87, 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=181778: Fri Oct 2 12:14:41 2026 read: IOPS=0, BW=1949KiB/s (1995kB/s)(4096KiB/2102msec) clat (nsec): min=406810k, max=406810k, avg=406809981.00, stdev= 0.00 lat (nsec): min=406812k, max=406812k, avg=406812169.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 405], 5.00th=[ 405], 10.00th=[ 405], 20.00th=[ 405], | 30.00th=[ 405], 40.00th=[ 405], 50.00th=[ 405], 60.00th=[ 405], | 70.00th=[ 405], 80.00th=[ 405], 90.00th=[ 405], 95.00th=[ 405], | 99.00th=[ 405], 99.50th=[ 405], 99.90th=[ 405], 99.95th=[ 405], | 99.99th=[ 405] bw ( KiB/s): min= 7968, max= 7968, per=100.00%, avg=7968.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3897KiB/s (3991kB/s)(8192KiB/2102msec); 0 zone resets clat (msec): min=599, max=989, avg=794.67, stdev=276.10 lat (msec): min=599, max=990, avg=795.07, stdev=276.23 clat percentiles (msec): | 1.00th=[ 600], 5.00th=[ 600], 10.00th=[ 600], 20.00th=[ 600], | 30.00th=[ 600], 40.00th=[ 600], 50.00th=[ 600], 60.00th=[ 995], | 70.00th=[ 995], 80.00th=[ 995], 90.00th=[ 995], 95.00th=[ 995], | 99.00th=[ 995], 99.50th=[ 995], 99.90th=[ 995], 99.95th=[ 995], | 99.99th=[ 995] bw ( KiB/s): min= 8192, max= 8192, per=60.13%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 750=33.33%, 1000=33.33% cpu : usr=0.05%, sys=19.13%, ctx=89, 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=181779: Fri Oct 2 12:14:41 2026 write: IOPS=1, BW=5109KiB/s (5232kB/s)(12.0MiB/2405msec); 0 zone resets clat (msec): min=139, max=1408, avg=766.62, stdev=634.49 lat (msec): min=139, max=1408, avg=766.99, stdev=634.64 clat percentiles (msec): | 1.00th=[ 140], 5.00th=[ 140], 10.00th=[ 140], 20.00th=[ 140], | 30.00th=[ 140], 40.00th=[ 751], 50.00th=[ 751], 60.00th=[ 751], | 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= 8192, max= 8192, per=60.13%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.08%, sys=15.39%, ctx=100, 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=181780: Fri Oct 2 12:14:41 2026 write: IOPS=1, BW=5933KiB/s (6076kB/s)(12.0MiB/2071msec); 0 zone resets clat (msec): min=274, max=1442, avg=665.87, stdev=672.84 lat (msec): min=275, max=1443, avg=666.49, stdev=672.68 clat percentiles (msec): | 1.00th=[ 275], 5.00th=[ 275], 10.00th=[ 275], 20.00th=[ 275], | 30.00th=[ 275], 40.00th=[ 279], 50.00th=[ 279], 60.00th=[ 279], | 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=11055, max=11055, per=81.14%, avg=11055.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 500=66.67%, 2000=33.33% cpu : usr=0.05%, sys=17.58%, ctx=93, 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=7571KiB/s (7753kB/s), 1949KiB/s-5678KiB/s (1995kB/s-5815kB/s), io=16.0MiB (16.8MB), run=2102-2164msec WRITE: bw=13.3MiB/s (13.0MB/s), 3897KiB/s-5933KiB/s (3991kB/s-6076kB/s), io=32.0MiB (33.6MB), run=2071-2405msec rand-rw: (groupid=0, jobs=1): err= 0: pid=181781: Fri Oct 2 12:14:42 2026 read: IOPS=1, BW=6804KiB/s (6967kB/s)(12.0MiB/1806msec) clat (msec): min=475, max=686, avg=583.56, stdev=105.45 lat (msec): min=475, max=686, avg=583.56, stdev=105.45 clat percentiles (msec): | 1.00th=[ 477], 5.00th=[ 477], 10.00th=[ 477], 20.00th=[ 477], | 30.00th=[ 477], 40.00th=[ 592], 50.00th=[ 592], 60.00th=[ 592], | 70.00th=[ 684], 80.00th=[ 684], 90.00th=[ 684], 95.00th=[ 684], | 99.00th=[ 684], 99.50th=[ 684], 99.90th=[ 684], 99.95th=[ 684], | 99.99th=[ 684] bw ( KiB/s): min= 8192, max= 8192, per=100.00%, avg=8192.00, stdev= 0.00, samples=2 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 750=66.67% cpu : usr=0.00%, sys=51.80%, ctx=2635, 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=181782: Fri Oct 2 12:14:42 2026 read: IOPS=0, BW=1685KiB/s (1725kB/s)(4096KiB/2431msec) clat (nsec): min=640657k, max=640657k, avg=640656516.00, stdev= 0.00 lat (nsec): min=640659k, max=640659k, avg=640658758.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 642], 5.00th=[ 642], 10.00th=[ 642], 20.00th=[ 642], | 30.00th=[ 642], 40.00th=[ 642], 50.00th=[ 642], 60.00th=[ 642], | 70.00th=[ 642], 80.00th=[ 642], 90.00th=[ 642], 95.00th=[ 642], | 99.00th=[ 642], 99.50th=[ 642], 99.90th=[ 642], 99.95th=[ 642], | 99.99th=[ 642] bw ( KiB/s): min= 5997, max= 5997, per=88.99%, avg=5997.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3370KiB/s (3451kB/s)(8192KiB/2431msec); 0 zone resets clat (msec): min=620, max=1146, avg=883.65, stdev=371.68 lat (msec): min=621, max=1146, avg=884.01, stdev=371.64 clat percentiles (msec): | 1.00th=[ 625], 5.00th=[ 625], 10.00th=[ 625], 20.00th=[ 625], | 30.00th=[ 625], 40.00th=[ 625], 50.00th=[ 625], 60.00th=[ 1150], | 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= 8143, max= 8143, per=60.44%, avg=8143.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=66.67%, 2000=33.33% cpu : usr=0.00%, sys=22.47%, ctx=962, 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=181783: Fri Oct 2 12:14:42 2026 write: IOPS=1, BW=5053KiB/s (5174kB/s)(12.0MiB/2432msec); 0 zone resets clat (msec): min=159, max=1750, avg=801.25, stdev=839.25 lat (msec): min=159, max=1751, avg=801.71, stdev=839.27 clat percentiles (msec): | 1.00th=[ 159], 5.00th=[ 159], 10.00th=[ 159], 20.00th=[ 159], | 30.00th=[ 159], 40.00th=[ 493], 50.00th=[ 493], 60.00th=[ 493], | 70.00th=[ 1754], 80.00th=[ 1754], 90.00th=[ 1754], 95.00th=[ 1754], | 99.00th=[ 1754], 99.50th=[ 1754], 99.90th=[ 1754], 99.95th=[ 1754], | 99.99th=[ 1754] bw ( KiB/s): min= 8143, max= 8143, per=60.44%, avg=8143.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 500=33.33%, 2000=33.33% cpu : usr=0.04%, sys=11.60%, ctx=74, 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=181784: Fri Oct 2 12:14:42 2026 write: IOPS=1, BW=5639KiB/s (5775kB/s)(12.0MiB/2179msec); 0 zone resets clat (msec): min=351, max=971, avg=719.23, stdev=325.44 lat (msec): min=352, max=971, avg=719.54, stdev=325.47 clat percentiles (msec): | 1.00th=[ 351], 5.00th=[ 351], 10.00th=[ 351], 20.00th=[ 351], | 30.00th=[ 351], 40.00th=[ 835], 50.00th=[ 835], 60.00th=[ 835], | 70.00th=[ 969], 80.00th=[ 969], 90.00th=[ 969], 95.00th=[ 969], | 99.00th=[ 969], 99.50th=[ 969], 99.90th=[ 969], 99.95th=[ 969], | 99.99th=[ 969] bw ( KiB/s): min= 8192, max= 8192, per=60.80%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 1000=66.67% cpu : usr=0.00%, sys=15.29%, ctx=85, 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=6740KiB/s (6901kB/s), 1685KiB/s-6804KiB/s (1725kB/s-6967kB/s), io=16.0MiB (16.8MB), run=1806-2431msec WRITE: bw=13.2MiB/s (13.8MB/s), 3370KiB/s-5639KiB/s (3451kB/s-5775kB/s), io=32.0MiB (33.6MB), run=2179-2432msec