== sanity test 398b: DIO and buffer IO race ============== 13:32:15 (1761240735) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 4.53559 s, 11.1 MB/s mix direct rw 4096 by fio with 4 jobs... mix buffer rw 4096 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=183494: Thu Oct 23 13:34:03 2025 read: IOPS=16, BW=65.3KiB/s (66.8kB/s)(5992KiB/91819msec) clat (usec): min=121, max=194380, avg=34509.37, stdev=22536.28 lat (usec): min=122, max=194382, avg=34510.42, stdev=22536.31 clat percentiles (usec): | 1.00th=[ 151], 5.00th=[ 10028], 10.00th=[ 13435], 20.00th=[ 17957], | 30.00th=[ 21627], 40.00th=[ 25822], 50.00th=[ 30278], 60.00th=[ 34866], | 70.00th=[ 41157], 80.00th=[ 47973], 90.00th=[ 59507], 95.00th=[ 71828], | 99.00th=[125305], 99.50th=[141558], 99.90th=[185598], 99.95th=[193987], | 99.99th=[193987] bw ( KiB/s): min= 7, max= 142, per=24.78%, avg=64.66, stdev=20.38, samples=181 iops : min= 1, max= 35, avg=15.56, stdev= 5.11, samples=181 write: IOPS=17, BW=68.6KiB/s (70.2kB/s)(6296KiB/91819msec); 0 zone resets clat (usec): min=868, max=271776, avg=25409.91, stdev=26504.05 lat (usec): min=869, max=271777, avg=25411.29, stdev=26504.08 clat percentiles (usec): | 1.00th=[ 1020], 5.00th=[ 1139], 10.00th=[ 1254], 20.00th=[ 2573], | 30.00th=[ 5997], 40.00th=[ 12911], 50.00th=[ 18744], 60.00th=[ 24773], | 70.00th=[ 32375], 80.00th=[ 43254], 90.00th=[ 59507], 95.00th=[ 76022], | 99.00th=[112722], 99.50th=[135267], 99.90th=[208667], 99.95th=[270533], | 99.99th=[270533] bw ( KiB/s): min= 7, max= 166, per=24.91%, avg=68.01, stdev=26.33, samples=181 iops : min= 1, max= 41, avg=16.39, stdev= 6.61, samples=181 lat (usec) : 250=1.43%, 500=0.33%, 1000=0.26% lat (msec) : 2=8.40%, 4=4.56%, 10=6.28%, 20=18.13%, 50=43.59% lat (msec) : 100=15.49%, 250=1.50%, 500=0.03% cpu : usr=0.11%, sys=7.47%, ctx=6618, 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=183495: Thu Oct 23 13:34:03 2025 read: IOPS=16, BW=65.6KiB/s (67.2kB/s)(5940KiB/90521msec) clat (usec): min=132, max=263272, avg=33779.88, stdev=20579.89 lat (usec): min=132, max=263274, avg=33780.94, stdev=20579.87 clat percentiles (usec): | 1.00th=[ 169], 5.00th=[ 10814], 10.00th=[ 14484], 20.00th=[ 18220], | 30.00th=[ 22152], 40.00th=[ 25822], 50.00th=[ 30278], 60.00th=[ 33817], | 70.00th=[ 39584], 80.00th=[ 46400], 90.00th=[ 58459], 95.00th=[ 68682], | 99.00th=[100140], 99.50th=[125305], 99.90th=[185598], 99.95th=[263193], | 99.99th=[263193] bw ( KiB/s): min= 15, max= 120, per=24.90%, avg=65.00, stdev=21.72, samples=178 iops : min= 3, max= 30, avg=15.64, stdev= 5.48, samples=178 write: IOPS=17, BW=70.1KiB/s (71.8kB/s)(6348KiB/90521msec); 0 zone resets clat (usec): min=895, max=233242, avg=25330.43, stdev=25672.30 lat (usec): min=896, max=233244, avg=25331.71, stdev=25672.25 clat percentiles (usec): | 1.00th=[ 1012], 5.00th=[ 1123], 10.00th=[ 1237], 20.00th=[ 2212], | 30.00th=[ 5014], 40.00th=[ 12387], 50.00th=[ 18744], 60.00th=[ 24773], | 70.00th=[ 32900], 80.00th=[ 44827], 90.00th=[ 63177], 95.00th=[ 74974], | 99.00th=[101188], 99.50th=[113771], 99.90th=[179307], 99.95th=[233833], | 99.99th=[233833] bw ( KiB/s): min= 23, max= 159, per=25.36%, avg=69.22, stdev=25.08, samples=178 iops : min= 5, max= 39, avg=16.70, stdev= 6.31, samples=178 lat (usec) : 250=0.98%, 500=0.26%, 750=0.03%, 1000=0.36% lat (msec) : 2=9.41%, 4=4.75%, 10=5.66%, 20=16.89%, 50=45.44% lat (msec) : 100=15.20%, 250=0.98%, 500=0.03% cpu : usr=0.10%, sys=7.50%, ctx=6708, 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=183496: Thu Oct 23 13:34:03 2025 read: IOPS=16, BW=65.9KiB/s (67.5kB/s)(6028KiB/91415msec) clat (usec): min=110, max=304527, avg=34438.85, stdev=22381.90 lat (usec): min=111, max=304528, avg=34440.05, stdev=22381.74 clat percentiles (usec): | 1.00th=[ 157], 5.00th=[ 10945], 10.00th=[ 14484], 20.00th=[ 18744], | 30.00th=[ 22152], 40.00th=[ 25822], 50.00th=[ 30016], 60.00th=[ 34866], | 70.00th=[ 41157], 80.00th=[ 47449], 90.00th=[ 57934], 95.00th=[ 70779], | 99.00th=[106431], 99.50th=[145753], 99.90th=[225444], 99.95th=[304088], | 99.99th=[304088] bw ( KiB/s): min= 15, max= 166, per=25.05%, avg=65.37, stdev=21.25, samples=180 iops : min= 3, max= 41, avg=15.73, stdev= 5.37, samples=180 write: IOPS=17, BW=68.5KiB/s (70.1kB/s)(6260KiB/91415msec); 0 zone resets clat (usec): min=874, max=242332, avg=25177.59, stdev=26122.11 lat (usec): min=875, max=242333, avg=25179.03, stdev=26122.06 clat percentiles (usec): | 1.00th=[ 1004], 5.00th=[ 1106], 10.00th=[ 1270], 20.00th=[ 2442], | 30.00th=[ 5538], 40.00th=[ 12518], 50.00th=[ 19006], 60.00th=[ 25035], | 70.00th=[ 32375], 80.00th=[ 43779], 90.00th=[ 58459], 95.00th=[ 74974], | 99.00th=[108528], 99.50th=[141558], 99.90th=[204473], 99.95th=[242222], | 99.99th=[242222] bw ( KiB/s): min= 23, max= 158, per=24.82%, avg=67.77, stdev=25.91, samples=180 iops : min= 5, max= 39, avg=16.34, stdev= 6.50, samples=180 lat (usec) : 250=1.33%, 500=0.33%, 1000=0.49% lat (msec) : 2=8.40%, 4=4.20%, 10=6.38%, 20=16.89%, 50=46.19% lat (msec) : 100=14.36%, 250=1.40%, 500=0.03% cpu : usr=0.10%, sys=7.36%, ctx=6637, 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=183497: Thu Oct 23 13:34:03 2025 read: IOPS=16, BW=66.8KiB/s (68.4kB/s)(6052KiB/90607msec) clat (usec): min=117, max=298871, avg=33302.47, stdev=21262.12 lat (usec): min=118, max=298872, avg=33305.60, stdev=21261.16 clat percentiles (usec): | 1.00th=[ 143], 5.00th=[ 9241], 10.00th=[ 13566], 20.00th=[ 17957], | 30.00th=[ 21627], 40.00th=[ 25297], 50.00th=[ 29492], 60.00th=[ 34341], | 70.00th=[ 40109], 80.00th=[ 46924], 90.00th=[ 56361], 95.00th=[ 66323], | 99.00th=[110625], 99.50th=[122160], 99.90th=[162530], 99.95th=[299893], | 99.99th=[299893] bw ( KiB/s): min= 7, max= 120, per=25.43%, avg=66.37, stdev=21.38, samples=179 iops : min= 1, max= 30, avg=15.98, stdev= 5.37, samples=179 write: IOPS=17, BW=68.8KiB/s (70.5kB/s)(6236KiB/90607msec); 0 zone resets clat (usec): min=880, max=253162, avg=25723.01, stdev=26901.51 lat (usec): min=880, max=253163, avg=25725.09, stdev=26901.46 clat percentiles (usec): | 1.00th=[ 1004], 5.00th=[ 1106], 10.00th=[ 1237], 20.00th=[ 2245], | 30.00th=[ 5669], 40.00th=[ 13304], 50.00th=[ 19530], 60.00th=[ 25297], | 70.00th=[ 32375], 80.00th=[ 43779], 90.00th=[ 59507], 95.00th=[ 77071], | 99.00th=[115868], 99.50th=[131597], 99.90th=[206570], 99.95th=[252707], | 99.99th=[252707] bw ( KiB/s): min= 15, max= 136, per=25.01%, avg=68.27, stdev=23.23, samples=179 iops : min= 3, max= 34, avg=16.45, stdev= 5.85, samples=179 lat (usec) : 250=1.66%, 500=0.33%, 1000=0.52% lat (msec) : 2=9.18%, 4=3.84%, 10=5.47%, 20=17.38%, 50=45.74% lat (msec) : 100=14.26%, 250=1.56%, 500=0.07% cpu : usr=0.09%, sys=7.49%, ctx=6617, 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=262KiB/s (268kB/s), 65.3KiB/s-66.8KiB/s (66.8kB/s-68.4kB/s), io=23.4MiB (24.6MB), run=90521-91819msec WRITE: bw=274KiB/s (280kB/s), 68.5KiB/s-70.1KiB/s (70.1kB/s-71.8kB/s), io=24.6MiB (25.7MB), run=90521-91819msec rand-rw: (groupid=0, jobs=1): err= 0: pid=183489: Thu Oct 23 13:34:37 2025 read: IOPS=11, BW=47.5KiB/s (48.6kB/s)(5992KiB/126227msec) clat (msec): min=5, max=759, avg=31.83, stdev=31.74 lat (msec): min=5, max=759, avg=31.83, stdev=31.74 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 19], 50.00th=[ 23], 60.00th=[ 28], | 70.00th=[ 34], 80.00th=[ 46], 90.00th=[ 69], 95.00th=[ 86], | 99.00th=[ 124], 99.50th=[ 142], 99.90th=[ 218], 99.95th=[ 760], | 99.99th=[ 760] bw ( KiB/s): min= 7, max= 152, per=25.30%, avg=47.81, stdev=28.57, samples=245 iops : min= 1, max= 38, avg=11.33, stdev= 7.19, samples=245 write: IOPS=12, BW=49.9KiB/s (51.1kB/s)(6296KiB/126227msec); 0 zone resets clat (msec): min=8, max=395, avg=49.67, stdev=32.41 lat (msec): min=8, max=395, avg=49.67, stdev=32.41 clat percentiles (msec): | 1.00th=[ 15], 5.00th=[ 19], 10.00th=[ 21], 20.00th=[ 27], | 30.00th=[ 31], 40.00th=[ 35], 50.00th=[ 40], 60.00th=[ 48], | 70.00th=[ 58], 80.00th=[ 70], 90.00th=[ 89], 95.00th=[ 106], | 99.00th=[ 161], 99.50th=[ 205], 99.90th=[ 305], 99.95th=[ 397], | 99.99th=[ 397] bw ( KiB/s): min= 7, max= 126, per=25.07%, avg=49.63, stdev=25.17, samples=248 iops : min= 1, max= 31, avg=11.79, stdev= 6.34, samples=248 lat (msec) : 10=4.43%, 20=20.70%, 50=47.27%, 100=23.08%, 250=4.39% lat (msec) : 500=0.10%, 1000=0.03% cpu : usr=0.07%, sys=2.49%, ctx=4907, 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=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=183490: Thu Oct 23 13:34:37 2025 read: IOPS=11, BW=47.3KiB/s (48.4kB/s)(5940KiB/125697msec) clat (msec): min=4, max=781, avg=31.53, stdev=31.58 lat (msec): min=4, max=781, avg=31.54, stdev=31.58 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 23], 60.00th=[ 27], | 70.00th=[ 34], 80.00th=[ 44], 90.00th=[ 65], 95.00th=[ 85], | 99.00th=[ 122], 99.50th=[ 146], 99.90th=[ 207], 99.95th=[ 785], | 99.99th=[ 785] bw ( KiB/s): min= 7, max= 136, per=24.88%, avg=47.02, stdev=29.09, samples=247 iops : min= 1, max= 34, avg=11.14, stdev= 7.33, samples=247 write: IOPS=12, BW=50.5KiB/s (51.7kB/s)(6348KiB/125697msec); 0 zone resets clat (msec): min=10, max=301, avg=49.44, stdev=32.54 lat (msec): min=10, max=301, avg=49.44, stdev=32.54 clat percentiles (msec): | 1.00th=[ 14], 5.00th=[ 18], 10.00th=[ 21], 20.00th=[ 26], | 30.00th=[ 30], 40.00th=[ 35], 50.00th=[ 40], 60.00th=[ 46], | 70.00th=[ 56], 80.00th=[ 70], 90.00th=[ 91], 95.00th=[ 112], | 99.00th=[ 167], 99.50th=[ 220], 99.90th=[ 245], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 7, max= 127, per=25.41%, avg=50.31, stdev=25.73, samples=247 iops : min= 1, max= 31, avg=11.96, stdev= 6.48, samples=247 lat (msec) : 10=3.74%, 20=21.09%, 50=48.76%, 100=21.45%, 250=4.88% lat (msec) : 500=0.03%, 1000=0.03% cpu : usr=0.06%, sys=2.59%, ctx=4885, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=183491: Thu Oct 23 13:34:37 2025 read: IOPS=11, BW=47.5KiB/s (48.7kB/s)(6028KiB/126879msec) clat (msec): min=5, max=250, avg=32.33, stdev=27.03 lat (msec): min=5, max=250, avg=32.33, stdev=27.03 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 23], 60.00th=[ 28], | 70.00th=[ 35], 80.00th=[ 46], 90.00th=[ 68], 95.00th=[ 94], | 99.00th=[ 130], 99.50th=[ 150], 99.90th=[ 178], 99.95th=[ 251], | 99.99th=[ 251] bw ( KiB/s): min= 7, max= 151, per=25.02%, avg=47.28, stdev=26.70, samples=248 iops : min= 1, max= 37, avg=11.20, stdev= 6.73, samples=248 write: IOPS=12, BW=49.3KiB/s (50.5kB/s)(6260KiB/126879msec); 0 zone resets clat (msec): min=10, max=790, avg=49.71, stdev=36.88 lat (msec): min=10, max=790, avg=49.71, stdev=36.88 clat percentiles (msec): | 1.00th=[ 14], 5.00th=[ 18], 10.00th=[ 21], 20.00th=[ 25], | 30.00th=[ 30], 40.00th=[ 34], 50.00th=[ 41], 60.00th=[ 48], | 70.00th=[ 57], 80.00th=[ 71], 90.00th=[ 90], 95.00th=[ 107], | 99.00th=[ 157], 99.50th=[ 205], 99.90th=[ 309], 99.95th=[ 793], | 99.99th=[ 793] bw ( KiB/s): min= 15, max= 151, per=24.70%, avg=48.91, stdev=27.37, samples=249 iops : min= 3, max= 37, avg=11.60, stdev= 6.88, samples=249 lat (msec) : 10=3.52%, 20=21.68%, 50=47.62%, 100=21.91%, 250=5.14% lat (msec) : 500=0.10%, 1000=0.03% cpu : usr=0.07%, sys=2.56%, ctx=4832, 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=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=183492: Thu Oct 23 13:34:37 2025 read: IOPS=11, BW=47.9KiB/s (49.1kB/s)(6052KiB/126293msec) clat (msec): min=4, max=216, avg=32.09, stdev=27.18 lat (msec): min=4, max=216, avg=32.10, stdev=27.19 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 19], 50.00th=[ 23], 60.00th=[ 27], | 70.00th=[ 34], 80.00th=[ 47], 90.00th=[ 70], 95.00th=[ 92], | 99.00th=[ 131], 99.50th=[ 144], 99.90th=[ 213], 99.95th=[ 218], | 99.99th=[ 218] bw ( KiB/s): min= 7, max= 165, per=25.54%, avg=48.27, stdev=28.84, samples=245 iops : min= 1, max= 41, avg=11.45, stdev= 7.26, samples=245 write: IOPS=12, BW=49.4KiB/s (50.6kB/s)(6236KiB/126293msec); 0 zone resets clat (msec): min=10, max=789, avg=49.63, stdev=36.83 lat (msec): min=10, max=789, avg=49.63, stdev=36.83 clat percentiles (msec): | 1.00th=[ 14], 5.00th=[ 18], 10.00th=[ 21], 20.00th=[ 26], | 30.00th=[ 30], 40.00th=[ 35], 50.00th=[ 41], 60.00th=[ 48], | 70.00th=[ 58], 80.00th=[ 70], 90.00th=[ 90], 95.00th=[ 106], | 99.00th=[ 159], 99.50th=[ 186], 99.90th=[ 384], 99.95th=[ 793], | 99.99th=[ 793] bw ( KiB/s): min= 7, max= 128, per=24.77%, avg=49.05, stdev=25.48, samples=248 iops : min= 1, max= 32, avg=11.65, stdev= 6.42, samples=248 lat (msec) : 10=3.71%, 20=22.62%, 50=46.26%, 100=22.46%, 250=4.85% lat (msec) : 500=0.07%, 1000=0.03% cpu : usr=0.06%, sys=2.41%, ctx=4801, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=189KiB/s (194kB/s), 47.3KiB/s-47.9KiB/s (48.4kB/s-49.1kB/s), io=23.4MiB (24.6MB), run=125697-126879msec WRITE: bw=198KiB/s (203kB/s), 49.3KiB/s-50.5KiB/s (50.5kB/s-51.7kB/s), io=24.6MiB (25.7MB), run=125697-126879msec 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=183532: Thu Oct 23 13:35:07 2025 read: IOPS=17, BW=280KiB/s (287kB/s)(5920KiB/21110msec) clat (usec): min=107, max=128588, avg=30670.06, stdev=20091.38 lat (usec): min=107, max=128588, avg=30671.16, stdev=20091.40 clat percentiles (usec): | 1.00th=[ 141], 5.00th=[ 196], 10.00th=[ 1156], 20.00th=[ 15926], | 30.00th=[ 20317], 40.00th=[ 24249], 50.00th=[ 28181], 60.00th=[ 32900], | 70.00th=[ 38011], 80.00th=[ 43779], 90.00th=[ 54789], 95.00th=[ 68682], | 99.00th=[ 96994], 99.50th=[107480], 99.90th=[128451], 99.95th=[128451], | 99.99th=[128451] bw ( KiB/s): min= 126, max= 413, per=24.76%, avg=274.39, stdev=77.27, samples=41 iops : min= 7, max= 25, avg=16.44, stdev= 4.81, samples=41 write: IOPS=18, BW=302KiB/s (309kB/s)(6368KiB/21110msec); 0 zone resets clat (usec): min=1301, max=117195, avg=24319.26, stdev=22006.24 lat (usec): min=1302, max=117197, avg=24321.30, stdev=22006.42 clat percentiles (usec): | 1.00th=[ 1467], 5.00th=[ 1762], 10.00th=[ 2442], 20.00th=[ 4424], | 30.00th=[ 8225], 40.00th=[ 14222], 50.00th=[ 18744], 60.00th=[ 24773], | 70.00th=[ 31851], 80.00th=[ 42730], 90.00th=[ 54789], 95.00th=[ 64226], | 99.00th=[107480], 99.50th=[112722], 99.90th=[116917], 99.95th=[116917], | 99.99th=[116917] bw ( KiB/s): min= 63, max= 476, per=25.60%, avg=298.46, stdev=89.26, samples=41 iops : min= 3, max= 29, avg=17.95, stdev= 5.72, samples=41 lat (usec) : 250=3.39%, 500=1.17% lat (msec) : 2=4.56%, 4=5.34%, 10=8.20%, 20=18.49%, 50=45.57% lat (msec) : 100=12.24%, 250=1.04% cpu : usr=0.11%, sys=10.48%, ctx=1855, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=183533: Thu Oct 23 13:35:07 2025 read: IOPS=16, BW=270KiB/s (276kB/s)(5744KiB/21302msec) clat (usec): min=136, max=128185, avg=31999.42, stdev=19005.48 lat (usec): min=137, max=128186, avg=32000.48, stdev=19005.47 clat percentiles (usec): | 1.00th=[ 155], 5.00th=[ 529], 10.00th=[ 12649], 20.00th=[ 17433], | 30.00th=[ 21890], 40.00th=[ 25822], 50.00th=[ 29754], 60.00th=[ 33162], | 70.00th=[ 39060], 80.00th=[ 44303], 90.00th=[ 54264], 95.00th=[ 67634], | 99.00th=[ 96994], 99.50th=[105382], 99.90th=[128451], 99.95th=[128451], | 99.99th=[128451] bw ( KiB/s): min= 123, max= 446, per=24.31%, avg=269.33, stdev=89.67, samples=42 iops : min= 7, max= 27, avg=16.12, stdev= 5.61, samples=42 write: IOPS=19, BW=307KiB/s (315kB/s)(6544KiB/21302msec); 0 zone resets clat (usec): min=1396, max=173844, avg=23706.84, stdev=21382.16 lat (usec): min=1398, max=173847, avg=23709.18, stdev=21382.69 clat percentiles (usec): | 1.00th=[ 1467], 5.00th=[ 1745], 10.00th=[ 2442], 20.00th=[ 4686], | 30.00th=[ 9110], 40.00th=[ 14091], 50.00th=[ 19006], 60.00th=[ 23200], | 70.00th=[ 30278], 80.00th=[ 39060], 90.00th=[ 54789], 95.00th=[ 62653], | 99.00th=[ 91751], 99.50th=[ 95945], 99.90th=[173016], 99.95th=[173016], | 99.99th=[173016] bw ( KiB/s): min= 160, max= 608, per=26.29%, avg=306.55, stdev=85.26, samples=42 iops : min= 10, max= 38, avg=18.48, stdev= 5.40, samples=42 lat (usec) : 250=1.69%, 500=0.52%, 750=0.26%, 1000=0.13% lat (msec) : 2=4.17%, 4=5.08%, 10=8.46%, 20=20.05%, 50=46.61% lat (msec) : 100=12.50%, 250=0.52% cpu : usr=0.10%, sys=10.07%, ctx=1826, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=183534: Thu Oct 23 13:35:07 2025 read: IOPS=18, BW=290KiB/s (296kB/s)(6256KiB/21607msec) clat (usec): min=130, max=119293, avg=29914.70, stdev=19050.24 lat (usec): min=131, max=119294, avg=29916.68, stdev=19050.21 clat percentiles (usec): | 1.00th=[ 149], 5.00th=[ 231], 10.00th=[ 7767], 20.00th=[ 15926], | 30.00th=[ 19268], 40.00th=[ 23987], 50.00th=[ 28705], 60.00th=[ 32900], | 70.00th=[ 37487], 80.00th=[ 42206], 90.00th=[ 49021], 95.00th=[ 60031], | 99.00th=[104334], 99.50th=[114820], 99.90th=[119014], 99.95th=[119014], | 99.99th=[119014] bw ( KiB/s): min= 93, max= 478, per=25.89%, avg=286.88, stdev=94.61, samples=42 iops : min= 5, max= 29, avg=17.24, stdev= 5.96, samples=42 write: IOPS=17, BW=279KiB/s (286kB/s)(6032KiB/21607msec); 0 zone resets clat (usec): min=1399, max=106656, avg=26039.82, stdev=22201.90 lat (usec): min=1400, max=106657, avg=26046.39, stdev=22200.85 clat percentiles (usec): | 1.00th=[ 1516], 5.00th=[ 1942], 10.00th=[ 3163], 20.00th=[ 5145], | 30.00th=[ 8979], 40.00th=[ 14222], 50.00th=[ 21365], 60.00th=[ 26346], | 70.00th=[ 34866], 80.00th=[ 46924], 90.00th=[ 55313], 95.00th=[ 70779], | 99.00th=[ 93848], 99.50th=[102237], 99.90th=[106431], 99.95th=[106431], | 99.99th=[106431] bw ( KiB/s): min= 126, max= 480, per=23.32%, avg=271.93, stdev=79.34, samples=42 iops : min= 7, max= 30, avg=16.29, stdev= 5.06, samples=42 lat (usec) : 250=2.86%, 500=1.17%, 750=0.13%, 1000=0.52% lat (msec) : 2=3.12%, 4=4.69%, 10=9.38%, 20=16.93%, 50=48.57% lat (msec) : 100=11.72%, 250=0.91% cpu : usr=0.12%, sys=9.84%, ctx=1833, 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=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=183535: Thu Oct 23 13:35:07 2025 read: IOPS=18, BW=291KiB/s (298kB/s)(6032KiB/20757msec) clat (usec): min=99, max=141610, avg=30208.23, stdev=20968.29 lat (usec): min=100, max=141610, avg=30209.26, stdev=20968.28 clat percentiles (usec): | 1.00th=[ 135], 5.00th=[ 178], 10.00th=[ 465], 20.00th=[ 16712], | 30.00th=[ 20579], 40.00th=[ 23462], 50.00th=[ 26608], 60.00th=[ 31065], | 70.00th=[ 36963], 80.00th=[ 43254], 90.00th=[ 52691], 95.00th=[ 65274], | 99.00th=[108528], 99.50th=[141558], 99.90th=[141558], 99.95th=[141558], | 99.99th=[141558] bw ( KiB/s): min= 190, max= 443, per=26.19%, avg=290.17, stdev=68.26, samples=41 iops : min= 11, max= 27, avg=17.41, stdev= 4.24, samples=41 write: IOPS=18, BW=301KiB/s (309kB/s)(6256KiB/20757msec); 0 zone resets clat (usec): min=1486, max=180723, avg=23800.74, stdev=23529.53 lat (usec): min=1488, max=180725, avg=23805.69, stdev=23528.19 clat percentiles (usec): | 1.00th=[ 1549], 5.00th=[ 1729], 10.00th=[ 2507], 20.00th=[ 4424], | 30.00th=[ 7177], 40.00th=[ 11863], 50.00th=[ 17957], 60.00th=[ 22414], | 70.00th=[ 30016], 80.00th=[ 39584], 90.00th=[ 51119], 95.00th=[ 69731], | 99.00th=[104334], 99.50th=[121111], 99.90th=[181404], 99.95th=[181404], | 99.99th=[181404] bw ( KiB/s): min= 63, max= 541, per=25.86%, avg=301.54, stdev=100.99, samples=41 iops : min= 3, max= 33, avg=18.15, stdev= 6.30, samples=41 lat (usec) : 100=0.13%, 250=3.78%, 500=1.17%, 750=0.26% lat (msec) : 2=4.30%, 4=4.95%, 10=10.55%, 20=16.67%, 50=47.14% lat (msec) : 100=9.64%, 250=1.43% cpu : usr=0.10%, sys=10.19%, ctx=1767, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=1109KiB/s (1135kB/s), 270KiB/s-291KiB/s (276kB/s-298kB/s), io=23.4MiB (24.5MB), run=20757-21607msec WRITE: bw=1166KiB/s (1194kB/s), 279KiB/s-307KiB/s (286kB/s-315kB/s), io=24.6MiB (25.8MB), run=20757-21607msec rand-rw: (groupid=0, jobs=1): err= 0: pid=183537: Thu Oct 23 13:35:13 2025 read: IOPS=13, BW=216KiB/s (221kB/s)(5920KiB/27411msec) clat (msec): min=6, max=172, avg=29.69, stdev=27.91 lat (msec): min=6, max=172, avg=29.69, stdev=27.91 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 8], 10.00th=[ 10], 20.00th=[ 11], | 30.00th=[ 13], 40.00th=[ 15], 50.00th=[ 18], 60.00th=[ 23], | 70.00th=[ 32], 80.00th=[ 44], 90.00th=[ 71], 95.00th=[ 87], | 99.00th=[ 138], 99.50th=[ 150], 99.90th=[ 174], 99.95th=[ 174], | 99.99th=[ 174] bw ( KiB/s): min= 60, max= 606, per=24.16%, avg=209.43, stdev=134.95, samples=53 iops : min= 3, max= 37, avg=12.30, stdev= 8.50, samples=53 write: IOPS=14, BW=232KiB/s (238kB/s)(6368KiB/27411msec); 0 zone resets clat (msec): min=9, max=189, avg=41.13, stdev=28.46 lat (msec): min=9, max=189, avg=41.13, stdev=28.47 clat percentiles (msec): | 1.00th=[ 12], 5.00th=[ 15], 10.00th=[ 17], 20.00th=[ 21], | 30.00th=[ 23], 40.00th=[ 26], 50.00th=[ 32], 60.00th=[ 38], | 70.00th=[ 47], 80.00th=[ 59], 90.00th=[ 81], 95.00th=[ 97], | 99.00th=[ 146], 99.50th=[ 155], 99.90th=[ 190], 99.95th=[ 190], | 99.99th=[ 190] bw ( KiB/s): min= 63, max= 640, per=25.14%, avg=229.30, stdev=140.30, samples=53 iops : min= 3, max= 40, avg=13.57, stdev= 8.88, samples=53 lat (msec) : 10=7.29%, 20=29.69%, 50=40.10%, 100=18.75%, 250=4.17% cpu : usr=0.07%, sys=3.52%, ctx=1316, 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=183538: Thu Oct 23 13:35:13 2025 read: IOPS=12, BW=208KiB/s (213kB/s)(5744KiB/27622msec) clat (msec): min=4, max=127, avg=27.37, stdev=24.91 lat (msec): min=4, max=127, avg=27.38, stdev=24.91 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 8], 10.00th=[ 9], 20.00th=[ 11], | 30.00th=[ 13], 40.00th=[ 16], 50.00th=[ 18], 60.00th=[ 22], | 70.00th=[ 28], 80.00th=[ 39], 90.00th=[ 65], 95.00th=[ 87], | 99.00th=[ 122], 99.50th=[ 126], 99.90th=[ 128], 99.95th=[ 128], | 99.99th=[ 128] bw ( KiB/s): min= 45, max= 640, per=24.34%, avg=211.06, stdev=141.68, samples=53 iops : min= 2, max= 40, avg=12.42, stdev= 8.96, samples=53 write: IOPS=14, BW=237KiB/s (243kB/s)(6544KiB/27622msec); 0 zone resets clat (msec): min=10, max=204, avg=43.33, stdev=32.11 lat (msec): min=10, max=204, avg=43.34, stdev=32.11 clat percentiles (msec): | 1.00th=[ 12], 5.00th=[ 16], 10.00th=[ 17], 20.00th=[ 20], | 30.00th=[ 23], 40.00th=[ 26], 50.00th=[ 31], 60.00th=[ 38], | 70.00th=[ 51], 80.00th=[ 66], 90.00th=[ 87], 95.00th=[ 111], | 99.00th=[ 150], 99.50th=[ 159], 99.90th=[ 205], 99.95th=[ 205], | 99.99th=[ 205] bw ( KiB/s): min= 63, max= 576, per=25.76%, avg=234.91, stdev=142.94, samples=54 iops : min= 3, max= 36, avg=13.93, stdev= 9.06, samples=54 lat (msec) : 10=8.07%, 20=30.21%, 50=38.67%, 100=18.10%, 250=4.95% cpu : usr=0.07%, sys=3.66%, ctx=1265, 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=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=183539: Thu Oct 23 13:35:13 2025 read: IOPS=14, BW=233KiB/s (238kB/s)(6256KiB/26902msec) clat (msec): min=5, max=147, avg=27.64, stdev=25.75 lat (msec): min=5, max=147, avg=27.64, stdev=25.75 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 8], 10.00th=[ 9], 20.00th=[ 11], | 30.00th=[ 13], 40.00th=[ 15], 50.00th=[ 18], 60.00th=[ 21], | 70.00th=[ 28], 80.00th=[ 40], 90.00th=[ 67], 95.00th=[ 85], | 99.00th=[ 125], 99.50th=[ 136], 99.90th=[ 148], 99.95th=[ 148], | 99.99th=[ 148] bw ( KiB/s): min= 32, max= 699, per=26.70%, avg=231.48, stdev=167.51, samples=52 iops : min= 2, max= 43, avg=13.71, stdev=10.55, samples=52 write: IOPS=14, BW=224KiB/s (230kB/s)(6032KiB/26902msec); 0 zone resets clat (msec): min=10, max=132, avg=42.51, stdev=26.88 lat (msec): min=10, max=132, avg=42.51, stdev=26.88 clat percentiles (msec): | 1.00th=[ 12], 5.00th=[ 15], 10.00th=[ 17], 20.00th=[ 20], | 30.00th=[ 24], 40.00th=[ 28], 50.00th=[ 33], 60.00th=[ 42], | 70.00th=[ 54], 80.00th=[ 67], 90.00th=[ 84], 95.00th=[ 96], | 99.00th=[ 125], 99.50th=[ 132], 99.90th=[ 133], 99.95th=[ 133], | 99.99th=[ 133] bw ( KiB/s): min= 62, max= 570, per=24.10%, avg=219.81, stdev=127.51, samples=52 iops : min= 3, max= 35, avg=12.98, stdev= 8.05, samples=52 lat (msec) : 10=8.85%, 20=31.38%, 50=35.94%, 100=20.44%, 250=3.39% cpu : usr=0.06%, sys=3.59%, ctx=1271, 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=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=183540: Thu Oct 23 13:35:13 2025 read: IOPS=13, BW=224KiB/s (229kB/s)(6032KiB/26934msec) clat (msec): min=5, max=135, avg=27.41, stdev=23.10 lat (msec): min=5, max=135, avg=27.41, stdev=23.10 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 12], | 30.00th=[ 13], 40.00th=[ 16], 50.00th=[ 19], 60.00th=[ 24], | 70.00th=[ 30], 80.00th=[ 39], 90.00th=[ 64], 95.00th=[ 82], | 99.00th=[ 110], 99.50th=[ 125], 99.90th=[ 136], 99.95th=[ 136], | 99.99th=[ 136] bw ( KiB/s): min= 31, max= 669, per=25.24%, avg=218.85, stdev=134.07, samples=52 iops : min= 1, max= 41, avg=12.90, stdev= 8.49, samples=52 write: IOPS=14, BW=232KiB/s (238kB/s)(6256KiB/26934msec); 0 zone resets clat (msec): min=9, max=197, avg=42.26, stdev=29.83 lat (msec): min=9, max=197, avg=42.26, stdev=29.83 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 15], 10.00th=[ 17], 20.00th=[ 21], | 30.00th=[ 23], 40.00th=[ 26], 50.00th=[ 32], 60.00th=[ 39], | 70.00th=[ 50], 80.00th=[ 64], 90.00th=[ 85], 95.00th=[ 102], | 99.00th=[ 157], 99.50th=[ 186], 99.90th=[ 199], 99.95th=[ 199], | 99.99th=[ 199] bw ( KiB/s): min= 63, max= 606, per=25.08%, avg=228.73, stdev=135.87, samples=52 iops : min= 3, max= 37, avg=13.52, stdev= 8.59, samples=52 lat (msec) : 10=6.77%, 20=30.21%, 50=41.28%, 100=18.23%, 250=3.52% cpu : usr=0.08%, sys=3.55%, ctx=1269, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=867KiB/s (888kB/s), 208KiB/s-233KiB/s (213kB/s-238kB/s), io=23.4MiB (24.5MB), run=26902-27622msec WRITE: bw=912KiB/s (934kB/s), 224KiB/s-237KiB/s (230kB/s-243kB/s), io=24.6MiB (25.8MB), run=26902-27622msec 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=183556: Thu Oct 23 13:35:26 2025 read: IOPS=2, BW=2555KiB/s (2617kB/s)(7168KiB/2805msec) clat (msec): min=108, max=279, avg=199.92, stdev=60.73 lat (msec): min=108, max=279, avg=199.92, stdev=60.73 clat percentiles (msec): | 1.00th=[ 109], 5.00th=[ 109], 10.00th=[ 109], 20.00th=[ 138], | 30.00th=[ 190], 40.00th=[ 190], 50.00th=[ 205], 60.00th=[ 228], | 70.00th=[ 228], 80.00th=[ 253], 90.00th=[ 279], 95.00th=[ 279], | 99.00th=[ 279], 99.50th=[ 279], 99.90th=[ 279], 99.95th=[ 279], | 99.99th=[ 279] bw ( KiB/s): min= 1906, max= 5242, per=76.83%, avg=3718.33, stdev=1686.63, samples=3 iops : min= 1, max= 5, avg= 3.00, stdev= 2.00, samples=3 write: IOPS=1, BW=1825KiB/s (1869kB/s)(5120KiB/2805msec); 0 zone resets clat (msec): min=211, max=396, avg=279.50, stdev=77.43 lat (msec): min=211, max=396, avg=280.06, stdev=77.76 clat percentiles (msec): | 1.00th=[ 211], 5.00th=[ 211], 10.00th=[ 211], 20.00th=[ 211], | 30.00th=[ 224], 40.00th=[ 224], 50.00th=[ 251], 60.00th=[ 251], | 70.00th=[ 317], 80.00th=[ 317], 90.00th=[ 397], 95.00th=[ 397], | 99.00th=[ 397], 99.50th=[ 397], 99.90th=[ 397], 99.95th=[ 397], | 99.99th=[ 397] bw ( KiB/s): min= 1906, max= 4096, per=39.46%, avg=2673.67, stdev=1233.07, samples=3 iops : min= 1, max= 4, avg= 2.00, stdev= 1.73, samples=3 lat (msec) : 250=66.67%, 500=33.33% cpu : usr=0.00%, sys=25.32%, ctx=243, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=183557: Thu Oct 23 13:35:26 2025 read: IOPS=0, BW=484KiB/s (496kB/s)(2048KiB/4231msec) clat (msec): min=14, max=499, avg=257.27, stdev=343.05 lat (msec): min=14, max=499, avg=257.27, stdev=343.05 clat percentiles (msec): | 1.00th=[ 15], 5.00th=[ 15], 10.00th=[ 15], 20.00th=[ 15], | 30.00th=[ 15], 40.00th=[ 15], 50.00th=[ 15], 60.00th=[ 502], | 70.00th=[ 502], 80.00th=[ 502], 90.00th=[ 502], 95.00th=[ 502], | 99.00th=[ 502], 99.50th=[ 502], 99.90th=[ 502], 99.95th=[ 502], | 99.99th=[ 502] bw ( KiB/s): min= 1718, max= 1969, per=38.09%, avg=1843.50, stdev=177.48, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2420KiB/s (2478kB/s)(10.0MiB/4231msec); 0 zone resets clat (msec): min=163, max=522, avg=371.37, stdev=138.91 lat (msec): min=163, max=522, avg=371.47, stdev=138.89 clat percentiles (msec): | 1.00th=[ 165], 5.00th=[ 165], 10.00th=[ 165], 20.00th=[ 165], | 30.00th=[ 268], 40.00th=[ 313], 50.00th=[ 351], 60.00th=[ 460], | 70.00th=[ 477], 80.00th=[ 489], 90.00th=[ 506], 95.00th=[ 523], | 99.00th=[ 523], 99.50th=[ 523], 99.90th=[ 523], 99.95th=[ 523], | 99.99th=[ 523] bw ( KiB/s): min= 1906, max= 4007, per=37.86%, avg=2565.57, stdev=985.69, samples=7 iops : min= 1, max= 3, avg= 1.71, stdev= 0.95, samples=7 lat (msec) : 20=8.33%, 250=16.67%, 500=58.33%, 750=16.67% cpu : usr=0.02%, sys=18.42%, ctx=153, 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=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=183558: Thu Oct 23 13:35:26 2025 read: IOPS=1, BW=1981KiB/s (2029kB/s)(6144KiB/3101msec) clat (usec): min=613, max=316802, avg=124144.13, stdev=140914.10 lat (usec): min=614, max=316803, avg=124145.09, stdev=140914.08 clat percentiles (usec): | 1.00th=[ 611], 5.00th=[ 611], 10.00th=[ 611], 20.00th=[ 685], | 30.00th=[ 685], 40.00th=[ 799], 50.00th=[ 799], 60.00th=[193987], | 70.00th=[231736], 80.00th=[231736], 90.00th=[316670], 95.00th=[316670], | 99.00th=[316670], 99.50th=[316670], 99.90th=[316670], 99.95th=[316670], | 99.99th=[316670] bw ( KiB/s): min= 3813, max= 4096, per=81.70%, avg=3954.50, stdev=200.11, samples=2 iops : min= 3, max= 4, avg= 3.50, stdev= 0.71, samples=2 write: IOPS=1, BW=1981KiB/s (2029kB/s)(6144KiB/3101msec); 0 zone resets clat (msec): min=144, max=985, avg=392.30, stdev=325.84 lat (msec): min=144, max=985, avg=392.38, stdev=325.85 clat percentiles (msec): | 1.00th=[ 144], 5.00th=[ 144], 10.00th=[ 144], 20.00th=[ 153], | 30.00th=[ 153], 40.00th=[ 220], 50.00th=[ 220], 60.00th=[ 309], | 70.00th=[ 542], 80.00th=[ 542], 90.00th=[ 986], 95.00th=[ 986], | 99.00th=[ 986], 99.50th=[ 986], 99.90th=[ 986], 99.95th=[ 986], | 99.99th=[ 986] bw ( KiB/s): min= 1698, max= 2048, per=28.30%, avg=1917.75, stdev=158.79, samples=4 iops : min= 1, max= 2, avg= 1.25, stdev= 0.50, samples=4 lat (usec) : 750=16.67%, 1000=8.33% lat (msec) : 250=41.67%, 500=16.67%, 750=8.33%, 1000=8.33% cpu : usr=0.00%, sys=17.26%, ctx=95, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=183559: Thu Oct 23 13:35:26 2025 read: IOPS=1, BW=1453KiB/s (1488kB/s)(5120KiB/3523msec) clat (usec): min=389, max=517767, avg=103955.80, stdev=231327.59 lat (usec): min=389, max=517768, avg=103956.56, stdev=231327.93 clat percentiles (usec): | 1.00th=[ 388], 5.00th=[ 388], 10.00th=[ 388], 20.00th=[ 388], | 30.00th=[ 404], 40.00th=[ 404], 50.00th=[ 586], 60.00th=[ 586], | 70.00th=[ 635], 80.00th=[ 635], 90.00th=[517997], 95.00th=[517997], | 99.00th=[517997], 99.50th=[517997], 99.90th=[517997], 99.95th=[517997], | 99.99th=[517997] bw ( KiB/s): min= 7876, max= 7876, per=100.00%, avg=7876.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=1, BW=2035KiB/s (2083kB/s)(7168KiB/3523msec); 0 zone resets clat (msec): min=163, max=730, avg=424.91, stdev=198.59 lat (msec): min=163, max=730, avg=425.02, stdev=198.65 clat percentiles (msec): | 1.00th=[ 163], 5.00th=[ 163], 10.00th=[ 163], 20.00th=[ 205], | 30.00th=[ 355], 40.00th=[ 355], 50.00th=[ 502], 60.00th=[ 510], | 70.00th=[ 510], 80.00th=[ 514], 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= 1759, max= 2019, per=28.50%, avg=1931.20, stdev=105.57, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (usec) : 500=16.67%, 750=16.67% lat (msec) : 250=16.67%, 500=8.33%, 750=41.67% cpu : usr=0.00%, sys=15.79%, ctx=122, 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=4840KiB/s (4957kB/s), 484KiB/s-2555KiB/s (496kB/s-2617kB/s), io=20.0MiB (20.0MB), run=2805-4231msec WRITE: bw=6777KiB/s (6939kB/s), 1825KiB/s-2420KiB/s (1869kB/s-2478kB/s), io=28.0MiB (29.4MB), run=2805-4231msec rand-rw: (groupid=0, jobs=1): err= 0: pid=183551: Thu Oct 23 13:35:26 2025 read: IOPS=2, BW=2363KiB/s (2419kB/s)(7168KiB/3034msec) clat (msec): min=82, max=766, avg=233.95, stdev=240.46 lat (msec): min=82, max=766, avg=233.95, stdev=240.46 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 84], 10.00th=[ 84], 20.00th=[ 99], | 30.00th=[ 116], 40.00th=[ 116], 50.00th=[ 148], 60.00th=[ 213], | 70.00th=[ 213], 80.00th=[ 215], 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= 2015, max= 4237, per=76.87%, avg=3364.67, stdev=1185.41, samples=3 iops : min= 1, max= 4, avg= 2.67, stdev= 1.53, samples=3 write: IOPS=1, BW=1688KiB/s (1728kB/s)(5120KiB/3034msec); 0 zone resets clat (msec): min=96, max=410, avg=257.43, stdev=118.52 lat (msec): min=96, max=410, avg=257.51, stdev=118.50 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 96], 10.00th=[ 96], 20.00th=[ 96], | 30.00th=[ 203], 40.00th=[ 203], 50.00th=[ 259], 60.00th=[ 259], | 70.00th=[ 321], 80.00th=[ 321], 90.00th=[ 409], 95.00th=[ 409], | 99.00th=[ 409], 99.50th=[ 409], 99.90th=[ 409], 99.95th=[ 409], | 99.99th=[ 409] bw ( KiB/s): min= 2035, max= 4031, per=53.90%, avg=3302.67, stdev=1101.89, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 lat (msec) : 100=25.00%, 250=41.67%, 500=25.00%, 1000=8.33% cpu : usr=0.03%, sys=5.87%, ctx=68, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=183552: Thu Oct 23 13:35:26 2025 read: IOPS=0, BW=438KiB/s (448kB/s)(2048KiB/4679msec) clat (msec): min=102, max=686, avg=394.73, stdev=412.85 lat (msec): min=102, max=686, avg=394.73, stdev=412.85 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 104], 10.00th=[ 104], 20.00th=[ 104], | 30.00th=[ 104], 40.00th=[ 104], 50.00th=[ 104], 60.00th=[ 684], | 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= 1464, max= 2015, per=39.74%, avg=1739.50, stdev=389.62, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2189KiB/s (2241kB/s)(10.0MiB/4679msec); 0 zone resets clat (msec): min=108, max=867, avg=380.17, stdev=285.35 lat (msec): min=109, max=867, avg=380.26, stdev=285.33 clat percentiles (msec): | 1.00th=[ 109], 5.00th=[ 109], 10.00th=[ 109], 20.00th=[ 111], | 30.00th=[ 113], 40.00th=[ 194], 50.00th=[ 255], 60.00th=[ 313], | 70.00th=[ 506], 80.00th=[ 518], 90.00th=[ 810], 95.00th=[ 869], | 99.00th=[ 869], 99.50th=[ 869], 99.90th=[ 869], 99.95th=[ 869], | 99.99th=[ 869] bw ( KiB/s): min= 1921, max= 4096, per=42.25%, avg=2588.40, stdev=939.97, samples=5 iops : min= 1, max= 4, avg= 1.80, stdev= 1.30, samples=5 lat (msec) : 250=41.67%, 500=16.67%, 750=25.00%, 1000=16.67% cpu : usr=0.00%, sys=7.91%, ctx=99, 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=183553: Thu Oct 23 13:35:26 2025 read: IOPS=1, BW=1376KiB/s (1409kB/s)(6144KiB/4466msec) clat (msec): min=58, max=972, avg=335.77, stdev=330.16 lat (msec): min=58, max=972, avg=335.77, stdev=330.16 clat percentiles (msec): | 1.00th=[ 59], 5.00th=[ 59], 10.00th=[ 59], 20.00th=[ 109], | 30.00th=[ 109], 40.00th=[ 239], 50.00th=[ 239], 60.00th=[ 300], | 70.00th=[ 338], 80.00th=[ 338], 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= 2015, max= 4096, per=57.94%, avg=2536.25, stdev=1039.84, samples=4 iops : min= 1, max= 4, avg= 1.75, stdev= 1.50, samples=4 write: IOPS=1, BW=1376KiB/s (1409kB/s)(6144KiB/4466msec); 0 zone resets clat (msec): min=117, max=1006, avg=388.35, stdev=331.68 lat (msec): min=117, max=1006, avg=388.46, stdev=331.68 clat percentiles (msec): | 1.00th=[ 117], 5.00th=[ 117], 10.00th=[ 117], 20.00th=[ 176], | 30.00th=[ 176], 40.00th=[ 178], 50.00th=[ 178], 60.00th=[ 397], | 70.00th=[ 456], 80.00th=[ 456], 90.00th=[ 1003], 95.00th=[ 1003], | 99.00th=[ 1003], 99.50th=[ 1003], 99.90th=[ 1003], 99.95th=[ 1003], | 99.99th=[ 1003] bw ( KiB/s): min= 2019, max= 2790, per=36.28%, avg=2223.00, stdev=378.19, samples=4 iops : min= 1, max= 2, avg= 1.50, stdev= 0.58, samples=4 lat (msec) : 100=8.33%, 250=41.67%, 500=33.33%, 1000=8.33%, 2000=8.33% cpu : usr=0.00%, sys=5.98%, ctx=152, 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=183554: Thu Oct 23 13:35:26 2025 read: IOPS=1, BW=1429KiB/s (1463kB/s)(5120KiB/3584msec) clat (msec): min=88, max=425, avg=221.81, stdev=161.33 lat (msec): min=88, max=425, avg=221.81, stdev=161.33 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 89], 10.00th=[ 89], 20.00th=[ 89], | 30.00th=[ 108], 40.00th=[ 108], 50.00th=[ 120], 60.00th=[ 120], | 70.00th=[ 368], 80.00th=[ 368], 90.00th=[ 426], 95.00th=[ 426], | 99.00th=[ 426], 99.50th=[ 426], 99.90th=[ 426], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 4031, max= 4071, per=92.55%, avg=4051.00, stdev=28.28, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=1, BW=2000KiB/s (2048kB/s)(7168KiB/3584msec); 0 zone resets clat (msec): min=132, max=813, avg=351.10, stdev=246.46 lat (msec): min=132, max=813, avg=351.20, stdev=246.46 clat percentiles (msec): | 1.00th=[ 133], 5.00th=[ 133], 10.00th=[ 133], 20.00th=[ 142], | 30.00th=[ 150], 40.00th=[ 150], 50.00th=[ 355], 60.00th=[ 384], | 70.00th=[ 384], 80.00th=[ 485], 90.00th=[ 810], 95.00th=[ 810], | 99.00th=[ 810], 99.50th=[ 810], 99.90th=[ 810], 99.95th=[ 810], | 99.99th=[ 810] bw ( KiB/s): min= 1921, max= 4351, per=44.79%, avg=2744.33, stdev=1391.56, samples=3 iops : min= 1, max= 4, avg= 2.00, stdev= 1.73, samples=3 lat (msec) : 100=8.33%, 250=41.67%, 500=41.67%, 1000=8.33% cpu : usr=0.03%, sys=6.00%, ctx=65, 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=4377KiB/s (4482kB/s), 438KiB/s-2363KiB/s (448kB/s-2419kB/s), io=20.0MiB (20.0MB), run=3034-4679msec WRITE: bw=6128KiB/s (6275kB/s), 1376KiB/s-2189KiB/s (1409kB/s-2241kB/s), io=28.0MiB (29.4MB), run=3034-4679msec 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=183565: Thu Oct 23 13:35:38 2025 read: IOPS=1, BW=5629KiB/s (5764kB/s)(12.0MiB/2183msec) clat (msec): min=644, max=846, avg=713.87, stdev=115.03 lat (msec): min=644, max=846, avg=713.87, stdev=115.03 clat percentiles (msec): | 1.00th=[ 642], 5.00th=[ 642], 10.00th=[ 642], 20.00th=[ 642], | 30.00th=[ 642], 40.00th=[ 651], 50.00th=[ 651], 60.00th=[ 651], | 70.00th=[ 844], 80.00th=[ 844], 90.00th=[ 844], 95.00th=[ 844], | 99.00th=[ 844], 99.50th=[ 844], 99.90th=[ 844], 99.95th=[ 844], | 99.99th=[ 844] bw ( KiB/s): min= 5368, max= 8175, per=97.01%, avg=6771.50, stdev=1984.85, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=66.67%, 1000=33.33% cpu : usr=0.00%, sys=15.72%, ctx=572, majf=0, minf=7 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=183566: Thu Oct 23 13:35:38 2025 read: IOPS=0, BW=1745KiB/s (1787kB/s)(4096KiB/2347msec) clat (nsec): min=631451k, max=631451k, avg=631451122.00, stdev= 0.00 lat (nsec): min=631454k, max=631454k, avg=631453798.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 634], 5.00th=[ 634], 10.00th=[ 634], 20.00th=[ 634], | 30.00th=[ 634], 40.00th=[ 634], 50.00th=[ 634], 60.00th=[ 634], | 70.00th=[ 634], 80.00th=[ 634], 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= 7876, max= 7876, per=100.00%, avg=7876.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3490KiB/s (3574kB/s)(8192KiB/2347msec); 0 zone resets clat (msec): min=395, max=1209, avg=802.32, stdev=575.15 lat (msec): min=396, max=1209, avg=802.70, stdev=575.09 clat percentiles (msec): | 1.00th=[ 397], 5.00th=[ 397], 10.00th=[ 397], 20.00th=[ 397], | 30.00th=[ 397], 40.00th=[ 397], 50.00th=[ 397], 60.00th=[ 1217], | 70.00th=[ 1217], 80.00th=[ 1217], 90.00th=[ 1217], 95.00th=[ 1217], | 99.00th=[ 1217], 99.50th=[ 1217], 99.90th=[ 1217], 99.95th=[ 1217], | 99.99th=[ 1217] bw ( KiB/s): min= 8192, max= 8192, per=63.45%, 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%, 2000=33.33% cpu : usr=0.09%, sys=7.16%, ctx=213, 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=183567: Thu Oct 23 13:35:38 2025 write: IOPS=1, BW=4842KiB/s (4958kB/s)(12.0MiB/2538msec); 0 zone resets clat (msec): min=516, max=1068, avg=806.64, stdev=277.18 lat (msec): min=517, max=1069, avg=807.31, stdev=277.13 clat percentiles (msec): | 1.00th=[ 518], 5.00th=[ 518], 10.00th=[ 518], 20.00th=[ 518], | 30.00th=[ 518], 40.00th=[ 835], 50.00th=[ 835], 60.00th=[ 835], | 70.00th=[ 1070], 80.00th=[ 1070], 90.00th=[ 1070], 95.00th=[ 1070], | 99.00th=[ 1070], 99.50th=[ 1070], 99.90th=[ 1070], 99.95th=[ 1070], | 99.99th=[ 1070] bw ( KiB/s): min= 7876, max= 8175, per=62.16%, avg=8025.50, stdev=211.42, 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=0.08%, sys=7.33%, ctx=60, majf=0, minf=7 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=183568: Thu Oct 23 13:35:38 2025 write: IOPS=1, BW=7470KiB/s (7649kB/s)(12.0MiB/1645msec); 0 zone resets clat (msec): min=203, max=1052, avg=537.09, stdev=452.94 lat (msec): min=203, max=1053, avg=537.50, stdev=452.97 clat percentiles (msec): | 1.00th=[ 205], 5.00th=[ 205], 10.00th=[ 205], 20.00th=[ 205], | 30.00th=[ 205], 40.00th=[ 355], 50.00th=[ 355], 60.00th=[ 355], | 70.00th=[ 1053], 80.00th=[ 1053], 90.00th=[ 1053], 95.00th=[ 1053], | 99.00th=[ 1053], 99.50th=[ 1053], 99.90th=[ 1053], 99.95th=[ 1053], | 99.99th=[ 1053] bw ( KiB/s): min=11070, max=11070, per=85.75%, avg=11070.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 500=33.33%, 2000=33.33% cpu : usr=0.00%, sys=8.03%, 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 Run status group 0 (all jobs): READ: bw=6981KiB/s (7148kB/s), 1745KiB/s-5629KiB/s (1787kB/s-5764kB/s), io=16.0MiB (16.8MB), run=2183-2347msec WRITE: bw=12.6MiB/s (13.2MB/s), 3490KiB/s-7470KiB/s (3574kB/s-7649kB/s), io=32.0MiB (33.6MB), run=1645-2538msec rand-rw: (groupid=0, jobs=1): err= 0: pid=183570: Thu Oct 23 13:35:39 2025 read: IOPS=1, BW=5503KiB/s (5635kB/s)(12.0MiB/2233msec) clat (msec): min=164, max=1384, avg=743.85, stdev=612.20 lat (msec): min=164, max=1384, avg=743.85, stdev=612.20 clat percentiles (msec): | 1.00th=[ 165], 5.00th=[ 165], 10.00th=[ 165], 20.00th=[ 165], | 30.00th=[ 165], 40.00th=[ 684], 50.00th=[ 684], 60.00th=[ 684], | 70.00th=[ 1385], 80.00th=[ 1385], 90.00th=[ 1385], 95.00th=[ 1385], | 99.00th=[ 1385], 99.50th=[ 1385], 99.90th=[ 1385], 99.95th=[ 1385], | 99.99th=[ 1385] bw ( KiB/s): min= 8078, max= 8078, per=100.00%, avg=8078.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.00%, sys=4.57%, ctx=52, 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=183571: Thu Oct 23 13:35:39 2025 read: IOPS=0, BW=1704KiB/s (1745kB/s)(4096KiB/2404msec) clat (nsec): min=1253.6M, max=1253.6M, avg=1253649960.00, stdev= 0.00 lat (nsec): min=1253.7M, max=1253.7M, avg=1253651467.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1250], 5.00th=[ 1250], 10.00th=[ 1250], 20.00th=[ 1250], | 30.00th=[ 1250], 40.00th=[ 1250], 50.00th=[ 1250], 60.00th=[ 1250], | 70.00th=[ 1250], 80.00th=[ 1250], 90.00th=[ 1250], 95.00th=[ 1250], | 99.00th=[ 1250], 99.50th=[ 1250], 99.90th=[ 1250], 99.95th=[ 1250], | 99.99th=[ 1250] bw ( KiB/s): min= 8078, max= 8078, per=100.00%, avg=8078.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3408KiB/s (3489kB/s)(8192KiB/2404msec); 0 zone resets clat (msec): min=459, max=687, avg=573.82, stdev=161.07 lat (msec): min=460, max=688, avg=574.27, stdev=160.96 clat percentiles (msec): | 1.00th=[ 460], 5.00th=[ 460], 10.00th=[ 460], 20.00th=[ 460], | 30.00th=[ 460], 40.00th=[ 460], 50.00th=[ 460], 60.00th=[ 684], | 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=63.20%, 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%, 2000=33.33% cpu : usr=0.00%, sys=5.78%, ctx=34, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=183572: Thu Oct 23 13:35:39 2025 write: IOPS=1, BW=4861KiB/s (4977kB/s)(12.0MiB/2528msec); 0 zone resets clat (msec): min=372, max=1379, avg=834.16, stdev=508.68 lat (msec): min=372, max=1379, avg=834.59, stdev=508.66 clat percentiles (msec): | 1.00th=[ 372], 5.00th=[ 372], 10.00th=[ 372], 20.00th=[ 372], | 30.00th=[ 372], 40.00th=[ 751], 50.00th=[ 751], 60.00th=[ 751], | 70.00th=[ 1385], 80.00th=[ 1385], 90.00th=[ 1385], 95.00th=[ 1385], | 99.00th=[ 1385], 99.50th=[ 1385], 99.90th=[ 1385], 99.95th=[ 1385], | 99.99th=[ 1385] bw ( KiB/s): min= 8094, max= 8192, per=62.82%, avg=8143.00, stdev=69.30, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 500=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=4.91%, ctx=65, 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 rand-rw: (groupid=0, jobs=1): err= 0: pid=183573: Thu Oct 23 13:35:39 2025 write: IOPS=1, BW=4901KiB/s (5019kB/s)(12.0MiB/2507msec); 0 zone resets clat (msec): min=284, max=1886, avg=824.70, stdev=919.46 lat (msec): min=284, max=1886, avg=825.16, stdev=919.38 clat percentiles (msec): | 1.00th=[ 284], 5.00th=[ 284], 10.00th=[ 284], 20.00th=[ 284], | 30.00th=[ 284], 40.00th=[ 305], 50.00th=[ 305], 60.00th=[ 305], | 70.00th=[ 1888], 80.00th=[ 1888], 90.00th=[ 1888], 95.00th=[ 1888], | 99.00th=[ 1888], 99.50th=[ 1888], 99.90th=[ 1888], 99.95th=[ 1888], | 99.99th=[ 1888] bw ( KiB/s): min= 6113, max= 6113, per=47.16%, avg=6113.00, 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=7.70%, ctx=65, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=6815KiB/s (6979kB/s), 1704KiB/s-5503KiB/s (1745kB/s-5635kB/s), io=16.0MiB (16.8MB), run=2233-2404msec WRITE: bw=12.7MiB/s (13.3MB/s), 3408KiB/s-4901KiB/s (3489kB/s-5019kB/s), io=32.0MiB (33.6MB), run=2404-2528msec