== sanity test 398b: DIO and buffer IO race ============== 02:06:29 (1789452389) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 6.15914 s, 8.2 MB/s mix direct rw 4096 by fio with 4 jobs... mix buffer rw 4096 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=146275: Tue Sep 15 02:08:56 2026 read: IOPS=11, BW=47.3KiB/s (48.4kB/s)(5992KiB/126793msec) clat (usec): min=32, max=301152, avg=40470.96, stdev=31341.80 lat (usec): min=33, max=301153, avg=40477.76, stdev=31339.43 clat percentiles (usec): | 1.00th=[ 51], 5.00th=[ 61], 10.00th=[ 97], 20.00th=[ 18744], | 30.00th=[ 23987], 40.00th=[ 28443], 50.00th=[ 33162], 60.00th=[ 39584], | 70.00th=[ 48497], 80.00th=[ 61080], 90.00th=[ 81265], 95.00th=[ 98042], | 99.00th=[141558], 99.50th=[168821], 99.90th=[252707], 99.95th=[299893], | 99.99th=[299893] bw ( KiB/s): min= 7, max= 111, per=24.89%, avg=46.79, stdev=20.76, samples=248 iops : min= 1, max= 27, avg=11.04, stdev= 5.22, samples=248 write: IOPS=12, BW=49.7KiB/s (50.8kB/s)(6296KiB/126793msec); 0 zone resets clat (usec): min=1055, max=350900, avg=41899.22, stdev=45709.24 lat (usec): min=1056, max=350901, avg=41909.02, stdev=45717.35 clat percentiles (usec): | 1.00th=[ 1156], 5.00th=[ 1303], 10.00th=[ 1975], 20.00th=[ 4293], | 30.00th=[ 8094], 40.00th=[ 18482], 50.00th=[ 29230], 60.00th=[ 41681], | 70.00th=[ 53216], 80.00th=[ 70779], 90.00th=[ 98042], 95.00th=[128451], | 99.00th=[217056], 99.50th=[258999], 99.90th=[337642], 99.95th=[350225], | 99.99th=[350225] bw ( KiB/s): min= 5, max= 118, per=24.89%, avg=49.02, stdev=20.77, samples=249 iops : min= 1, max= 29, avg=11.61, stdev= 5.22, samples=249 lat (usec) : 50=0.42%, 100=4.52%, 250=0.26%, 500=0.16%, 1000=0.07% lat (msec) : 2=5.40%, 4=4.56%, 10=7.06%, 20=9.34%, 50=37.73% lat (msec) : 100=23.34%, 250=6.80%, 500=0.33% cpu : usr=0.07%, sys=4.96%, ctx=6493, 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=146276: Tue Sep 15 02:08:56 2026 read: IOPS=11, BW=47.1KiB/s (48.2kB/s)(5940KiB/126213msec) clat (usec): min=24, max=404546, avg=41643.56, stdev=33875.17 lat (usec): min=24, max=404548, avg=41649.18, stdev=33873.91 clat percentiles (usec): | 1.00th=[ 48], 5.00th=[ 58], 10.00th=[ 89], 20.00th=[ 18744], | 30.00th=[ 23987], 40.00th=[ 29492], 50.00th=[ 34866], 60.00th=[ 42730], | 70.00th=[ 51643], 80.00th=[ 61604], 90.00th=[ 81265], 95.00th=[ 96994], | 99.00th=[160433], 99.50th=[183501], 99.90th=[362808], 99.95th=[404751], | 99.99th=[404751] bw ( KiB/s): min= 5, max= 117, per=25.14%, avg=47.25, stdev=20.16, samples=244 iops : min= 1, max= 29, avg=11.17, stdev= 5.06, samples=244 write: IOPS=12, BW=50.3KiB/s (51.5kB/s)(6348KiB/126213msec); 0 zone resets clat (usec): min=1026, max=306166, avg=40485.01, stdev=43472.03 lat (usec): min=1027, max=306167, avg=40487.32, stdev=43471.45 clat percentiles (usec): | 1.00th=[ 1156], 5.00th=[ 1287], 10.00th=[ 1631], 20.00th=[ 3818], | 30.00th=[ 7504], 40.00th=[ 15926], 50.00th=[ 28705], 60.00th=[ 39584], | 70.00th=[ 52691], 80.00th=[ 69731], 90.00th=[100140], 95.00th=[127402], | 99.00th=[191890], 99.50th=[225444], 99.90th=[287310], 99.95th=[304088], | 99.99th=[304088] bw ( KiB/s): min= 7, max= 151, per=25.20%, avg=49.65, stdev=23.03, samples=248 iops : min= 1, max= 37, avg=11.77, stdev= 5.81, samples=248 lat (usec) : 50=0.62%, 100=4.46%, 250=0.39%, 500=0.10%, 750=0.03% lat (msec) : 2=6.41%, 4=4.33%, 10=7.62%, 20=9.08%, 50=35.25% lat (msec) : 100=24.58%, 250=6.90%, 500=0.23% cpu : usr=0.08%, sys=5.11%, ctx=6413, 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=146277: Tue Sep 15 02:08:56 2026 read: IOPS=11, BW=47.3KiB/s (48.4kB/s)(6028KiB/127430msec) clat (usec): min=32, max=282612, avg=39386.38, stdev=31786.76 lat (usec): min=32, max=282614, avg=39387.90, stdev=31786.88 clat percentiles (usec): | 1.00th=[ 46], 5.00th=[ 58], 10.00th=[ 68], 20.00th=[ 16188], | 30.00th=[ 21890], 40.00th=[ 27919], 50.00th=[ 33424], 60.00th=[ 39584], | 70.00th=[ 48497], 80.00th=[ 60031], 90.00th=[ 80217], 95.00th=[ 96994], | 99.00th=[156238], 99.50th=[168821], 99.90th=[246416], 99.95th=[283116], | 99.99th=[283116] bw ( KiB/s): min= 7, max= 135, per=25.24%, avg=47.44, stdev=21.14, samples=248 iops : min= 1, max= 33, avg=11.21, stdev= 5.31, samples=248 write: IOPS=12, BW=49.1KiB/s (50.3kB/s)(6260KiB/127430msec); 0 zone resets clat (usec): min=1046, max=512069, avg=43380.82, stdev=45315.90 lat (usec): min=1047, max=512070, avg=43384.38, stdev=45319.28 clat percentiles (usec): | 1.00th=[ 1156], 5.00th=[ 1287], 10.00th=[ 1795], 20.00th=[ 4178], | 30.00th=[ 8356], 40.00th=[ 20055], 50.00th=[ 32113], 60.00th=[ 43254], | 70.00th=[ 57410], 80.00th=[ 76022], 90.00th=[103285], 95.00th=[126354], | 99.00th=[191890], 99.50th=[202376], 99.90th=[308282], 99.95th=[513803], | 99.99th=[513803] bw ( KiB/s): min= 5, max= 119, per=24.79%, avg=48.83, stdev=21.54, samples=250 iops : min= 1, max= 29, avg=11.56, stdev= 5.41, samples=250 lat (usec) : 50=0.72%, 100=5.50%, 250=0.29%, 500=0.16%, 1000=0.03% lat (msec) : 2=5.96%, 4=4.04%, 10=6.90%, 20=9.57%, 50=34.73% lat (msec) : 100=24.19%, 250=7.75%, 500=0.13%, 750=0.03% cpu : usr=0.05%, sys=4.93%, ctx=6371, 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=146278: Tue Sep 15 02:08:56 2026 read: IOPS=12, BW=49.4KiB/s (50.6kB/s)(6052KiB/122524msec) clat (usec): min=30, max=315481, avg=39648.18, stdev=31013.48 lat (usec): min=30, max=315482, avg=39649.75, stdev=31013.61 clat percentiles (usec): | 1.00th=[ 51], 5.00th=[ 60], 10.00th=[ 133], 20.00th=[ 18482], | 30.00th=[ 23725], 40.00th=[ 28705], 50.00th=[ 33817], 60.00th=[ 40109], | 70.00th=[ 48497], 80.00th=[ 59507], 90.00th=[ 74974], 95.00th=[ 91751], | 99.00th=[143655], 99.50th=[187696], 99.90th=[312476], 99.95th=[316670], | 99.99th=[316670] bw ( KiB/s): min= 7, max= 103, per=26.23%, avg=49.31, stdev=22.89, samples=239 iops : min= 1, max= 25, avg=11.68, stdev= 5.75, samples=239 write: IOPS=12, BW=50.9KiB/s (52.1kB/s)(6236KiB/122524msec); 0 zone resets clat (usec): min=918, max=437176, avg=39996.24, stdev=44186.19 lat (usec): min=919, max=437180, avg=39997.93, stdev=44186.12 clat percentiles (usec): | 1.00th=[ 1123], 5.00th=[ 1254], 10.00th=[ 1500], 20.00th=[ 3523], | 30.00th=[ 6718], 40.00th=[ 14746], 50.00th=[ 26084], 60.00th=[ 38011], | 70.00th=[ 52167], 80.00th=[ 69731], 90.00th=[102237], 95.00th=[129500], | 99.00th=[181404], 99.50th=[202376], 99.90th=[274727], 99.95th=[438305], | 99.99th=[438305] bw ( KiB/s): min= 7, max= 143, per=25.57%, avg=50.37, stdev=22.12, samples=241 iops : min= 1, max= 35, avg=11.95, stdev= 5.57, samples=241 lat (usec) : 50=0.46%, 100=4.23%, 250=0.62%, 500=0.07%, 750=0.03% lat (usec) : 1000=0.07% lat (msec) : 2=6.74%, 4=4.43%, 10=7.23%, 20=9.47%, 50=36.75% lat (msec) : 100=22.88%, 250=6.80%, 500=0.23% cpu : usr=0.07%, sys=5.00%, ctx=6326, 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=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=188KiB/s (193kB/s), 47.1KiB/s-49.4KiB/s (48.2kB/s-50.6kB/s), io=23.4MiB (24.6MB), run=122524-127430msec WRITE: bw=197KiB/s (202kB/s), 49.1KiB/s-50.9KiB/s (50.3kB/s-52.1kB/s), io=24.6MiB (25.7MB), run=122524-127430msec rand-rw: (groupid=0, jobs=1): err= 0: pid=146270: Tue Sep 15 02:11:10 2026 read: IOPS=5, BW=22.9KiB/s (23.4kB/s)(5992KiB/261769msec) clat (msec): min=4, max=832, avg=34.36, stdev=42.92 lat (msec): min=4, max=832, avg=34.36, stdev=42.92 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 15], 40.00th=[ 18], 50.00th=[ 21], 60.00th=[ 25], | 70.00th=[ 32], 80.00th=[ 48], 90.00th=[ 77], 95.00th=[ 101], | 99.00th=[ 184], 99.50th=[ 266], 99.90th=[ 414], 99.95th=[ 835], | 99.99th=[ 835] bw ( KiB/s): min= 7, max= 111, per=28.54%, avg=25.97, stdev=17.65, samples=446 iops : min= 1, max= 27, avg= 5.87, stdev= 4.45, samples=446 write: IOPS=6, BW=24.1KiB/s (24.6kB/s)(6296KiB/261769msec); 0 zone resets clat (msec): min=38, max=617, avg=133.28, stdev=66.77 lat (msec): min=38, max=617, avg=133.29, stdev=66.77 clat percentiles (msec): | 1.00th=[ 52], 5.00th=[ 63], 10.00th=[ 70], 20.00th=[ 83], | 30.00th=[ 93], 40.00th=[ 104], 50.00th=[ 114], 60.00th=[ 129], | 70.00th=[ 146], 80.00th=[ 176], 90.00th=[ 224], 95.00th=[ 275], | 99.00th=[ 355], 99.50th=[ 388], 99.90th=[ 542], 99.95th=[ 617], | 99.99th=[ 617] bw ( KiB/s): min= 7, max= 48, per=25.12%, avg=23.86, stdev=11.17, samples=508 iops : min= 1, max= 12, avg= 5.34, stdev= 2.85, samples=508 lat (msec) : 10=4.04%, 20=19.69%, 50=16.11%, 100=24.93%, 250=31.35% lat (msec) : 500=3.74%, 750=0.10%, 1000=0.03% cpu : usr=0.04%, sys=1.12%, ctx=5266, 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=146271: Tue Sep 15 02:11:10 2026 read: IOPS=5, BW=22.6KiB/s (23.2kB/s)(5940KiB/262370msec) clat (msec): min=5, max=942, avg=33.77, stdev=43.14 lat (msec): min=5, max=942, avg=33.77, stdev=43.14 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 15], 40.00th=[ 18], 50.00th=[ 21], 60.00th=[ 25], | 70.00th=[ 32], 80.00th=[ 45], 90.00th=[ 78], 95.00th=[ 105], | 99.00th=[ 171], 99.50th=[ 241], 99.90th=[ 401], 99.95th=[ 944], | 99.99th=[ 944] bw ( KiB/s): min= 7, max= 112, per=28.53%, avg=25.96, stdev=17.38, samples=443 iops : min= 1, max= 28, avg= 5.88, stdev= 4.40, samples=443 write: IOPS=6, BW=24.2KiB/s (24.8kB/s)(6348KiB/262370msec); 0 zone resets clat (msec): min=36, max=612, avg=133.38, stdev=68.21 lat (msec): min=36, max=612, avg=133.38, stdev=68.21 clat percentiles (msec): | 1.00th=[ 46], 5.00th=[ 58], 10.00th=[ 67], 20.00th=[ 81], | 30.00th=[ 91], 40.00th=[ 103], 50.00th=[ 115], 60.00th=[ 131], | 70.00th=[ 148], 80.00th=[ 180], 90.00th=[ 230], 95.00th=[ 271], | 99.00th=[ 355], 99.50th=[ 384], 99.90th=[ 493], 99.95th=[ 617], | 99.99th=[ 617] bw ( KiB/s): min= 7, max= 63, per=25.05%, avg=23.80, stdev=11.64, samples=515 iops : min= 1, max= 15, avg= 5.32, stdev= 2.96, samples=515 lat (msec) : 10=4.13%, 20=19.66%, 50=17.25%, 100=24.38%, 250=30.76% lat (msec) : 500=3.74%, 750=0.03%, 1000=0.03% cpu : usr=0.05%, sys=1.18%, ctx=5492, 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=146272: Tue Sep 15 02:11:10 2026 read: IOPS=5, BW=22.0KiB/s (23.5kB/s)(6028KiB/262208msec) clat (msec): min=5, max=504, avg=34.75, stdev=38.39 lat (msec): min=5, max=504, avg=34.75, stdev=38.39 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 18], 50.00th=[ 22], 60.00th=[ 26], | 70.00th=[ 33], 80.00th=[ 47], 90.00th=[ 80], 95.00th=[ 108], | 99.00th=[ 184], 99.50th=[ 224], 99.90th=[ 347], 99.95th=[ 506], | 99.99th=[ 506] bw ( KiB/s): min= 7, max= 95, per=27.66%, avg=25.17, stdev=17.73, samples=462 iops : min= 1, max= 23, avg= 5.68, stdev= 4.48, samples=462 write: IOPS=5, BW=23.9KiB/s (24.4kB/s)(6260KiB/262208msec); 0 zone resets clat (msec): min=34, max=1093, avg=133.75, stdev=71.43 lat (msec): min=34, max=1093, avg=133.76, stdev=71.43 clat percentiles (msec): | 1.00th=[ 49], 5.00th=[ 59], 10.00th=[ 68], 20.00th=[ 82], | 30.00th=[ 92], 40.00th=[ 103], 50.00th=[ 115], 60.00th=[ 130], | 70.00th=[ 148], 80.00th=[ 178], 90.00th=[ 230], 95.00th=[ 275], | 99.00th=[ 359], 99.50th=[ 430], 99.90th=[ 617], 99.95th=[ 1099], | 99.99th=[ 1099] bw ( KiB/s): min= 7, max= 56, per=24.92%, avg=23.68, stdev=11.52, samples=509 iops : min= 1, max= 14, avg= 5.29, stdev= 2.93, samples=509 lat (msec) : 10=4.56%, 20=18.16%, 50=17.87%, 100=24.97%, 250=30.37% lat (msec) : 500=3.97%, 750=0.07%, 2000=0.03% cpu : usr=0.05%, sys=1.17%, ctx=5237, 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=146273: Tue Sep 15 02:11:10 2026 read: IOPS=5, BW=23.2KiB/s (23.8kB/s)(6052KiB/260560msec) clat (msec): min=5, max=427, avg=33.40, stdev=36.66 lat (msec): min=5, max=427, avg=33.41, stdev=36.66 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 15], 40.00th=[ 18], 50.00th=[ 21], 60.00th=[ 26], | 70.00th=[ 33], 80.00th=[ 45], 90.00th=[ 75], 95.00th=[ 102], | 99.00th=[ 180], 99.50th=[ 243], 99.90th=[ 418], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 7, max= 95, per=28.86%, avg=26.27, stdev=18.01, samples=446 iops : min= 1, max= 23, avg= 5.95, stdev= 4.55, samples=446 write: IOPS=5, BW=23.9KiB/s (24.5kB/s)(6236KiB/260560msec); 0 zone resets clat (msec): min=30, max=1010, avg=134.39, stdev=70.35 lat (msec): min=30, max=1010, avg=134.40, stdev=70.35 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 62], 10.00th=[ 69], 20.00th=[ 82], | 30.00th=[ 93], 40.00th=[ 106], 50.00th=[ 117], 60.00th=[ 132], | 70.00th=[ 153], 80.00th=[ 180], 90.00th=[ 222], 95.00th=[ 259], | 99.00th=[ 368], 99.50th=[ 460], 99.90th=[ 625], 99.95th=[ 1011], | 99.99th=[ 1011] bw ( KiB/s): min= 7, max= 55, per=24.91%, avg=23.66, stdev=11.00, samples=508 iops : min= 1, max= 13, avg= 5.29, stdev= 2.82, samples=508 lat (msec) : 10=4.69%, 20=19.21%, 50=16.96%, 100=24.15%, 250=31.80% lat (msec) : 500=2.99%, 750=0.16%, 2000=0.03% cpu : usr=0.04%, sys=1.14%, ctx=5272, 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=91.5KiB/s (93.7kB/s), 22.6KiB/s-23.2KiB/s (23.2kB/s-23.8kB/s), io=23.4MiB (24.6MB), run=260560-262370msec WRITE: bw=95.8KiB/s (98.1kB/s), 23.9KiB/s-24.2KiB/s (24.4kB/s-24.8kB/s), io=24.6MiB (25.7MB), run=260560-262370msec 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=146331: Tue Sep 15 02:11:44 2026 read: IOPS=15, BW=249KiB/s (255kB/s)(5920KiB/23814msec) clat (usec): min=36, max=113749, avg=30984.61, stdev=24143.02 lat (usec): min=36, max=113751, avg=30985.77, stdev=24143.04 clat percentiles (usec): | 1.00th=[ 43], 5.00th=[ 55], 10.00th=[ 61], 20.00th=[ 89], | 30.00th=[ 18482], 40.00th=[ 24773], 50.00th=[ 30540], 60.00th=[ 35390], | 70.00th=[ 41681], 80.00th=[ 50070], 90.00th=[ 60556], 95.00th=[ 73925], | 99.00th=[106431], 99.50th=[110625], 99.90th=[113771], 99.95th=[113771], | 99.99th=[113771] bw ( KiB/s): min= 124, max= 538, per=25.41%, avg=247.96, stdev=91.52, samples=47 iops : min= 7, max= 33, avg=14.77, stdev= 5.79, samples=47 write: IOPS=16, BW=267KiB/s (274kB/s)(6368KiB/23814msec); 0 zone resets clat (usec): min=1614, max=206154, avg=30724.02, stdev=31133.91 lat (usec): min=1616, max=206157, avg=30726.19, stdev=31133.89 clat percentiles (usec): | 1.00th=[ 1663], 5.00th=[ 2212], 10.00th=[ 3064], 20.00th=[ 5473], | 30.00th=[ 7439], 40.00th=[ 13304], 50.00th=[ 20579], 60.00th=[ 29754], | 70.00th=[ 39584], 80.00th=[ 52167], 90.00th=[ 73925], 95.00th=[ 89654], | 99.00th=[132645], 99.50th=[175113], 99.90th=[206570], 99.95th=[206570], | 99.99th=[206570] bw ( KiB/s): min= 95, max= 474, per=25.99%, avg=266.96, stdev=85.71, samples=47 iops : min= 5, max= 29, avg=15.96, stdev= 5.36, samples=47 lat (usec) : 50=1.82%, 100=7.94%, 250=0.65%, 500=0.65% lat (msec) : 2=2.21%, 4=5.34%, 10=11.20%, 20=10.94%, 50=37.89% lat (msec) : 100=18.88%, 250=2.47% cpu : usr=0.08%, sys=7.23%, ctx=1634, 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=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=146332: Tue Sep 15 02:11:44 2026 read: IOPS=14, BW=234KiB/s (240kB/s)(5744KiB/24528msec) clat (usec): min=38, max=189238, avg=33894.19, stdev=26397.03 lat (usec): min=39, max=189239, avg=33895.70, stdev=26397.08 clat percentiles (usec): | 1.00th=[ 42], 5.00th=[ 58], 10.00th=[ 70], 20.00th=[ 11600], | 30.00th=[ 21103], 40.00th=[ 26084], 50.00th=[ 31589], 60.00th=[ 36439], | 70.00th=[ 44827], 80.00th=[ 54264], 90.00th=[ 66847], 95.00th=[ 80217], | 99.00th=[ 99091], 99.50th=[170918], 99.90th=[189793], 99.95th=[189793], | 99.99th=[189793] bw ( KiB/s): min= 29, max= 414, per=23.90%, avg=233.31, stdev=93.08, samples=48 iops : min= 1, max= 25, avg=13.83, stdev= 5.84, samples=48 write: IOPS=16, BW=267KiB/s (273kB/s)(6544KiB/24528msec); 0 zone resets clat (usec): min=1514, max=206962, avg=29662.12, stdev=31909.37 lat (usec): min=1516, max=206963, avg=29664.47, stdev=31909.54 clat percentiles (usec): | 1.00th=[ 1598], 5.00th=[ 1942], 10.00th=[ 2704], 20.00th=[ 4686], | 30.00th=[ 6652], 40.00th=[ 10159], 50.00th=[ 20317], 60.00th=[ 27657], | 70.00th=[ 40109], 80.00th=[ 55313], 90.00th=[ 66847], 95.00th=[ 84411], | 99.00th=[160433], 99.50th=[196084], 99.90th=[206570], 99.95th=[206570], | 99.99th=[206570] bw ( KiB/s): min= 31, max= 593, per=25.92%, avg=266.21, stdev=108.89, samples=48 iops : min= 1, max= 37, avg=15.92, stdev= 6.86, samples=48 lat (usec) : 50=1.17%, 100=5.60%, 250=1.69%, 750=0.26% lat (msec) : 2=3.12%, 4=6.12%, 10=12.37%, 20=8.98%, 50=37.63% lat (msec) : 100=20.83%, 250=2.21% cpu : usr=0.11%, sys=6.99%, ctx=1585, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=146333: Tue Sep 15 02:11:44 2026 read: IOPS=16, BW=264KiB/s (271kB/s)(6256KiB/23655msec) clat (usec): min=37, max=202083, avg=32280.75, stdev=28141.39 lat (usec): min=37, max=202085, avg=32281.94, stdev=28141.39 clat percentiles (usec): | 1.00th=[ 41], 5.00th=[ 58], 10.00th=[ 65], 20.00th=[ 149], | 30.00th=[ 20579], 40.00th=[ 25297], 50.00th=[ 30278], 60.00th=[ 34341], | 70.00th=[ 41681], 80.00th=[ 50070], 90.00th=[ 62129], 95.00th=[ 78119], | 99.00th=[152044], 99.50th=[160433], 99.90th=[202376], 99.95th=[202376], | 99.99th=[202376] bw ( KiB/s): min= 90, max= 570, per=27.21%, avg=265.61, stdev=101.37, samples=46 iops : min= 5, max= 35, avg=15.87, stdev= 6.41, samples=46 write: IOPS=15, BW=255KiB/s (261kB/s)(6032KiB/23655msec); 0 zone resets clat (usec): min=1483, max=273799, avg=28672.12, stdev=30641.71 lat (usec): min=1485, max=273800, avg=28674.58, stdev=30641.92 clat percentiles (usec): | 1.00th=[ 1713], 5.00th=[ 2073], 10.00th=[ 3064], 20.00th=[ 5145], | 30.00th=[ 7373], 40.00th=[ 10552], 50.00th=[ 17695], 60.00th=[ 27919], | 70.00th=[ 38011], 80.00th=[ 49546], 90.00th=[ 64226], 95.00th=[ 84411], | 99.00th=[126354], 99.50th=[147850], 99.90th=[274727], 99.95th=[274727], | 99.99th=[274727] bw ( KiB/s): min= 63, max= 446, per=24.58%, avg=252.46, stdev=96.95, samples=46 iops : min= 3, max= 27, avg=15.04, stdev= 6.09, samples=46 lat (usec) : 50=1.56%, 100=8.07%, 250=1.69%, 500=0.26%, 750=0.13% lat (usec) : 1000=0.13% lat (msec) : 2=2.60%, 4=4.69%, 10=11.85%, 20=9.11%, 50=39.97% lat (msec) : 100=17.06%, 250=2.73%, 500=0.13% cpu : usr=0.13%, sys=6.87%, ctx=1552, 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=146335: Tue Sep 15 02:11:44 2026 read: IOPS=16, BW=257KiB/s (264kB/s)(6032KiB/23441msec) clat (usec): min=37, max=157254, avg=32773.62, stdev=25744.53 lat (usec): min=37, max=157255, avg=32776.53, stdev=25746.10 clat percentiles (usec): | 1.00th=[ 44], 5.00th=[ 62], 10.00th=[ 71], 20.00th=[ 586], | 30.00th=[ 20579], 40.00th=[ 25035], 50.00th=[ 31065], 60.00th=[ 36963], | 70.00th=[ 42730], 80.00th=[ 50070], 90.00th=[ 64226], 95.00th=[ 77071], | 99.00th=[114820], 99.50th=[149947], 99.90th=[156238], 99.95th=[156238], | 99.99th=[156238] bw ( KiB/s): min= 95, max= 502, per=26.75%, avg=261.07, stdev=95.39, samples=45 iops : min= 5, max= 31, avg=15.58, stdev= 6.05, samples=45 write: IOPS=16, BW=267KiB/s (273kB/s)(6256KiB/23441msec); 0 zone resets clat (usec): min=1539, max=337331, avg=27676.70, stdev=31377.28 lat (usec): min=1543, max=337333, avg=27678.92, stdev=31377.26 clat percentiles (usec): | 1.00th=[ 1631], 5.00th=[ 1975], 10.00th=[ 2868], 20.00th=[ 4686], | 30.00th=[ 6980], 40.00th=[ 10552], 50.00th=[ 16909], 60.00th=[ 24511], | 70.00th=[ 34866], 80.00th=[ 47973], 90.00th=[ 67634], 95.00th=[ 84411], | 99.00th=[113771], 99.50th=[158335], 99.90th=[337642], 99.95th=[337642], | 99.99th=[337642] bw ( KiB/s): min= 31, max= 509, per=25.97%, avg=266.74, stdev=101.60, samples=46 iops : min= 1, max= 31, avg=15.96, stdev= 6.39, samples=46 lat (usec) : 50=0.65%, 100=7.03%, 250=1.95%, 500=0.13%, 750=0.13% lat (msec) : 2=2.99%, 4=6.12%, 10=11.20%, 20=10.94%, 50=39.58% lat (msec) : 100=17.06%, 250=2.08%, 500=0.13% cpu : usr=0.07%, sys=7.32%, ctx=1535, 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=977KiB/s (1000kB/s), 234KiB/s-264KiB/s (240kB/s-271kB/s), io=23.4MiB (24.5MB), run=23441-24528msec WRITE: bw=1027KiB/s (1052kB/s), 255KiB/s-267KiB/s (261kB/s-274kB/s), io=24.6MiB (25.8MB), run=23441-24528msec rand-rw: (groupid=0, jobs=1): err= 0: pid=146334: Tue Sep 15 02:12:18 2026 read: IOPS=6, BW=100KiB/s (102kB/s)(5920KiB/59159msec) clat (msec): min=4, max=199, avg=34.56, stdev=29.87 lat (msec): min=4, max=199, avg=34.56, stdev=29.87 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 16], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 25], 60.00th=[ 30], | 70.00th=[ 38], 80.00th=[ 47], 90.00th=[ 67], 95.00th=[ 103], | 99.00th=[ 159], 99.50th=[ 199], 99.90th=[ 199], 99.95th=[ 199], | 99.99th=[ 199] bw ( KiB/s): min= 30, max= 381, per=26.26%, avg=105.81, stdev=68.24, samples=110 iops : min= 1, max= 23, avg= 5.87, stdev= 4.27, samples=110 write: IOPS=6, BW=108KiB/s (110kB/s)(6368KiB/59159msec); 0 zone resets clat (msec): min=38, max=373, avg=116.02, stdev=45.89 lat (msec): min=38, max=373, avg=116.02, stdev=45.89 clat percentiles (msec): | 1.00th=[ 51], 5.00th=[ 62], 10.00th=[ 68], 20.00th=[ 81], | 30.00th=[ 88], 40.00th=[ 97], 50.00th=[ 109], 60.00th=[ 117], | 70.00th=[ 129], 80.00th=[ 148], 90.00th=[ 178], 95.00th=[ 211], | 99.00th=[ 275], 99.50th=[ 284], 99.90th=[ 372], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 31, max= 191, per=25.28%, avg=107.20, stdev=40.73, samples=117 iops : min= 1, max= 11, avg= 5.96, stdev= 2.60, samples=117 lat (msec) : 10=2.08%, 20=16.93%, 50=21.35%, 100=27.73%, 250=30.99% lat (msec) : 500=0.91% cpu : usr=0.04%, sys=1.56%, ctx=1375, 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=146336: Tue Sep 15 02:12:18 2026 read: IOPS=6, BW=96.7KiB/s (98.0kB/s)(5744KiB/59416msec) clat (msec): min=7, max=296, avg=35.33, stdev=32.21 lat (msec): min=7, max=296, avg=35.33, stdev=32.21 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 12], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 22], 50.00th=[ 25], 60.00th=[ 30], | 70.00th=[ 36], 80.00th=[ 47], 90.00th=[ 71], 95.00th=[ 103], | 99.00th=[ 169], 99.50th=[ 180], 99.90th=[ 296], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 29, max= 381, per=25.74%, avg=103.75, stdev=66.62, samples=108 iops : min= 1, max= 23, avg= 5.73, stdev= 4.21, samples=108 write: IOPS=6, BW=110KiB/s (113kB/s)(6544KiB/59416msec); 0 zone resets clat (msec): min=41, max=339, avg=113.85, stdev=46.60 lat (msec): min=41, max=339, avg=113.86, stdev=46.60 clat percentiles (msec): | 1.00th=[ 45], 5.00th=[ 61], 10.00th=[ 67], 20.00th=[ 78], | 30.00th=[ 87], 40.00th=[ 94], 50.00th=[ 104], 60.00th=[ 113], | 70.00th=[ 125], 80.00th=[ 146], 90.00th=[ 174], 95.00th=[ 205], | 99.00th=[ 284], 99.50th=[ 309], 99.90th=[ 338], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 31, max= 192, per=26.01%, avg=110.30, stdev=41.42, samples=116 iops : min= 1, max= 12, avg= 6.16, stdev= 2.62, samples=116 lat (msec) : 10=1.17%, 20=15.76%, 50=22.53%, 100=28.78%, 250=30.47% lat (msec) : 500=1.30% cpu : usr=0.04%, sys=1.48%, ctx=1280, 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=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=146337: Tue Sep 15 02:12:18 2026 read: IOPS=6, BW=109KiB/s (112kB/s)(6256KiB/57337msec) clat (msec): min=6, max=227, avg=34.56, stdev=30.04 lat (msec): min=6, max=227, avg=34.57, stdev=30.04 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 10], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 22], 50.00th=[ 25], 60.00th=[ 30], | 70.00th=[ 38], 80.00th=[ 46], 90.00th=[ 61], 95.00th=[ 100], | 99.00th=[ 167], 99.50th=[ 207], 99.90th=[ 228], 99.95th=[ 228], | 99.99th=[ 228] bw ( KiB/s): min= 30, max= 316, per=28.09%, avg=113.20, stdev=70.21, samples=109 iops : min= 1, max= 19, avg= 6.33, stdev= 4.46, samples=109 write: IOPS=6, BW=105KiB/s (108kB/s)(6032KiB/57337msec); 0 zone resets clat (msec): min=38, max=308, avg=116.07, stdev=44.94 lat (msec): min=38, max=308, avg=116.08, stdev=44.93 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 59], 10.00th=[ 70], 20.00th=[ 82], | 30.00th=[ 88], 40.00th=[ 97], 50.00th=[ 107], 60.00th=[ 118], | 70.00th=[ 127], 80.00th=[ 148], 90.00th=[ 178], 95.00th=[ 203], | 99.00th=[ 268], 99.50th=[ 292], 99.90th=[ 309], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 31, max= 223, per=24.55%, avg=104.10, stdev=39.56, samples=113 iops : min= 1, max= 13, avg= 5.76, stdev= 2.48, samples=113 lat (msec) : 10=3.12%, 20=14.58%, 50=25.39%, 100=26.69%, 250=29.43% lat (msec) : 500=0.78% cpu : usr=0.03%, sys=1.51%, ctx=1353, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=146338: Tue Sep 15 02:12:18 2026 read: IOPS=6, BW=102KiB/s (104kB/s)(6032KiB/59135msec) clat (msec): min=6, max=245, avg=34.90, stdev=30.58 lat (msec): min=6, max=245, avg=34.90, stdev=30.58 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 22], 50.00th=[ 26], 60.00th=[ 30], | 70.00th=[ 37], 80.00th=[ 46], 90.00th=[ 70], 95.00th=[ 93], | 99.00th=[ 148], 99.50th=[ 207], 99.90th=[ 247], 99.95th=[ 247], | 99.99th=[ 247] bw ( KiB/s): min= 30, max= 414, per=27.41%, avg=110.45, stdev=69.99, samples=107 iops : min= 1, max= 25, avg= 6.18, stdev= 4.41, samples=107 write: IOPS=6, BW=106KiB/s (108kB/s)(6256KiB/59135msec); 0 zone resets clat (msec): min=49, max=347, avg=117.17, stdev=47.08 lat (msec): min=49, max=347, avg=117.18, stdev=47.07 clat percentiles (msec): | 1.00th=[ 53], 5.00th=[ 62], 10.00th=[ 68], 20.00th=[ 81], | 30.00th=[ 89], 40.00th=[ 97], 50.00th=[ 109], 60.00th=[ 117], | 70.00th=[ 131], 80.00th=[ 148], 90.00th=[ 176], 95.00th=[ 215], | 99.00th=[ 275], 99.50th=[ 342], 99.90th=[ 347], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 31, max= 192, per=24.88%, avg=105.47, stdev=38.10, samples=117 iops : min= 1, max= 12, avg= 5.85, stdev= 2.44, samples=117 lat (msec) : 10=2.73%, 20=13.80%, 50=24.61%, 100=27.86%, 250=29.82% lat (msec) : 500=1.17% cpu : usr=0.03%, sys=1.56%, ctx=1383, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=403KiB/s (413kB/s), 96.7KiB/s-109KiB/s (98.0kB/s-112kB/s), io=23.4MiB (24.5MB), run=57337-59416msec WRITE: bw=424KiB/s (434kB/s), 105KiB/s-110KiB/s (108kB/s-113kB/s), io=24.6MiB (25.8MB), run=57337-59416msec 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=146356: Tue Sep 15 02:12:35 2026 read: IOPS=1, BW=1164KiB/s (1192kB/s)(7168KiB/6160msec) clat (msec): min=129, max=2753, avg=600.67, stdev=953.56 lat (msec): min=129, max=2753, avg=600.67, stdev=953.56 clat percentiles (msec): | 1.00th=[ 130], 5.00th=[ 130], 10.00th=[ 130], 20.00th=[ 140], | 30.00th=[ 194], 40.00th=[ 194], 50.00th=[ 296], 60.00th=[ 326], | 70.00th=[ 326], 80.00th=[ 363], 90.00th=[ 2769], 95.00th=[ 2769], | 99.00th=[ 2769], 99.50th=[ 2769], 99.90th=[ 2769], 99.95th=[ 2769], | 99.99th=[ 2769] bw ( KiB/s): min= 2043, max= 3992, per=100.00%, avg=2984.75, stdev=1085.97, samples=4 iops : min= 1, max= 3, avg= 2.25, stdev= 0.96, samples=4 write: IOPS=0, BW=831KiB/s (851kB/s)(5120KiB/6160msec); 0 zone resets clat (msec): min=297, max=595, avg=380.48, stdev=125.74 lat (msec): min=297, max=595, avg=380.57, stdev=125.73 clat percentiles (msec): | 1.00th=[ 296], 5.00th=[ 296], 10.00th=[ 296], 20.00th=[ 296], | 30.00th=[ 300], 40.00th=[ 300], 50.00th=[ 321], 60.00th=[ 321], | 70.00th=[ 388], 80.00th=[ 388], 90.00th=[ 592], 95.00th=[ 592], | 99.00th=[ 592], 99.50th=[ 592], 99.90th=[ 592], 99.95th=[ 592], | 99.99th=[ 592] bw ( KiB/s): min= 2015, max= 4007, per=66.36%, avg=2525.00, stdev=988.07, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (msec) : 250=25.00%, 500=58.33%, 750=8.33%, >=2000=8.33% cpu : usr=0.00%, sys=3.00%, ctx=71, 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=146357: Tue Sep 15 02:12:35 2026 read: IOPS=0, BW=272KiB/s (278kB/s)(2048KiB/7535msec) clat (msec): min=125, max=538, avg=331.72, stdev=291.74 lat (msec): min=125, max=538, avg=331.73, stdev=291.74 clat percentiles (msec): | 1.00th=[ 126], 5.00th=[ 126], 10.00th=[ 126], 20.00th=[ 126], | 30.00th=[ 126], 40.00th=[ 126], 50.00th=[ 126], 60.00th=[ 542], | 70.00th=[ 542], 80.00th=[ 542], 90.00th=[ 542], 95.00th=[ 542], | 99.00th=[ 542], 99.50th=[ 542], 99.90th=[ 542], 99.95th=[ 542], | 99.99th=[ 542] bw ( KiB/s): min= 1965, max= 2048, per=73.85%, avg=2006.50, stdev=58.69, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 write: IOPS=1, BW=1359KiB/s (1392kB/s)(10.0MiB/7535msec); 0 zone resets clat (msec): min=143, max=3436, avg=672.41, stdev=1000.83 lat (msec): min=143, max=3436, avg=672.53, stdev=1000.82 clat percentiles (msec): | 1.00th=[ 144], 5.00th=[ 144], 10.00th=[ 144], 20.00th=[ 148], | 30.00th=[ 190], 40.00th=[ 226], 50.00th=[ 230], 60.00th=[ 342], | 70.00th=[ 489], 80.00th=[ 634], 90.00th=[ 885], 95.00th=[ 3440], | 99.00th=[ 3440], 99.50th=[ 3440], 99.90th=[ 3440], 99.95th=[ 3440], | 99.99th=[ 3440] bw ( KiB/s): min= 2023, max= 6119, per=85.63%, avg=3258.20, stdev=1826.44, samples=5 iops : min= 1, max= 5, avg= 2.20, stdev= 1.79, samples=5 lat (msec) : 250=50.00%, 500=16.67%, 750=16.67%, 1000=8.33%, >=2000=8.33% cpu : usr=0.00%, sys=2.99%, ctx=100, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=146358: Tue Sep 15 02:12:35 2026 read: IOPS=0, BW=837KiB/s (857kB/s)(6144KiB/7337msec) clat (msec): min=66, max=946, avg=307.42, stdev=334.81 lat (msec): min=66, max=946, avg=307.42, stdev=334.81 clat percentiles (msec): | 1.00th=[ 67], 5.00th=[ 67], 10.00th=[ 67], 20.00th=[ 93], | 30.00th=[ 93], 40.00th=[ 159], 50.00th=[ 159], 60.00th=[ 180], | 70.00th=[ 401], 80.00th=[ 401], 90.00th=[ 944], 95.00th=[ 944], | 99.00th=[ 944], 99.50th=[ 944], 99.90th=[ 944], 99.95th=[ 944], | 99.99th=[ 944] bw ( KiB/s): min= 2003, max= 4071, per=93.58%, avg=2542.50, stdev=1019.22, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 0.82, samples=4 write: IOPS=0, BW=837KiB/s (857kB/s)(6144KiB/7337msec); 0 zone resets clat (msec): min=142, max=3367, avg=888.89, stdev=1230.91 lat (msec): min=142, max=3367, avg=889.10, stdev=1230.88 clat percentiles (msec): | 1.00th=[ 142], 5.00th=[ 142], 10.00th=[ 142], 20.00th=[ 215], | 30.00th=[ 215], 40.00th=[ 355], 50.00th=[ 355], 60.00th=[ 625], | 70.00th=[ 634], 80.00th=[ 634], 90.00th=[ 3373], 95.00th=[ 3373], | 99.00th=[ 3373], 99.50th=[ 3373], 99.90th=[ 3373], 99.95th=[ 3373], | 99.99th=[ 3373] bw ( KiB/s): min= 1385, max= 4071, per=60.79%, avg=2313.20, stdev=1022.39, samples=5 iops : min= 1, max= 3, avg= 1.60, stdev= 0.89, samples=5 lat (msec) : 100=16.67%, 250=33.33%, 500=16.67%, 750=16.67%, 1000=8.33% lat (msec) : >=2000=8.33% cpu : usr=0.00%, sys=2.82%, ctx=88, 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=146359: Tue Sep 15 02:12:35 2026 read: IOPS=0, BW=710KiB/s (727kB/s)(5120KiB/7213msec) clat (msec): min=120, max=815, avg=283.24, stdev=297.96 lat (msec): min=120, max=815, avg=283.24, stdev=297.96 clat percentiles (msec): | 1.00th=[ 121], 5.00th=[ 121], 10.00th=[ 121], 20.00th=[ 121], | 30.00th=[ 153], 40.00th=[ 153], 50.00th=[ 155], 60.00th=[ 155], | 70.00th=[ 176], 80.00th=[ 176], 90.00th=[ 818], 95.00th=[ 818], | 99.00th=[ 818], 99.50th=[ 818], 99.90th=[ 818], 99.95th=[ 818], | 99.99th=[ 818] bw ( KiB/s): min= 2035, max= 4096, per=100.00%, avg=2726.33, stdev=1186.18, samples=3 iops : min= 1, max= 4, avg= 2.33, stdev= 1.53, samples=3 write: IOPS=0, BW=994KiB/s (1018kB/s)(7168KiB/7213msec); 0 zone resets clat (msec): min=192, max=3478, avg=818.63, stdev=1181.65 lat (msec): min=192, max=3479, avg=818.74, stdev=1181.64 clat percentiles (msec): | 1.00th=[ 192], 5.00th=[ 192], 10.00th=[ 192], 20.00th=[ 271], | 30.00th=[ 326], 40.00th=[ 326], 50.00th=[ 384], 60.00th=[ 443], | 70.00th=[ 443], 80.00th=[ 642], 90.00th=[ 3473], 95.00th=[ 3473], | 99.00th=[ 3473], 99.50th=[ 3473], 99.90th=[ 3473], 99.95th=[ 3473], | 99.99th=[ 3473] bw ( KiB/s): min= 1408, max= 2035, per=50.22%, avg=1910.83, stdev=247.30, samples=6 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=6 lat (msec) : 250=41.67%, 500=33.33%, 750=8.33%, 1000=8.33%, >=2000=8.33% cpu : usr=0.00%, sys=3.24%, ctx=131, 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=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=2718KiB/s (2783kB/s), 272KiB/s-1164KiB/s (278kB/s-1192kB/s), io=20.0MiB (20.0MB), run=6160-7535msec WRITE: bw=3805KiB/s (3897kB/s), 831KiB/s-1359KiB/s (851kB/s-1392kB/s), io=28.0MiB (29.4MB), run=6160-7535msec rand-rw: (groupid=0, jobs=1): err= 0: pid=146360: Tue Sep 15 02:12:35 2026 read: IOPS=1, BW=1050KiB/s (1075kB/s)(7168KiB/6825msec) clat (msec): min=168, max=3106, avg=618.70, stdev=1097.26 lat (msec): min=168, max=3106, avg=618.72, stdev=1097.26 clat percentiles (msec): | 1.00th=[ 169], 5.00th=[ 169], 10.00th=[ 169], 20.00th=[ 171], | 30.00th=[ 190], 40.00th=[ 190], 50.00th=[ 209], 60.00th=[ 239], | 70.00th=[ 239], 80.00th=[ 249], 90.00th=[ 3104], 95.00th=[ 3104], | 99.00th=[ 3104], 99.50th=[ 3104], 99.90th=[ 3104], 99.95th=[ 3104], | 99.99th=[ 3104] bw ( KiB/s): min= 1372, max= 4023, per=100.00%, avg=2859.50, stdev=1358.16, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 write: IOPS=0, BW=750KiB/s (768kB/s)(5120KiB/6825msec); 0 zone resets clat (msec): min=110, max=1069, avg=456.14, stdev=371.10 lat (msec): min=110, max=1069, avg=456.22, stdev=371.08 clat percentiles (msec): | 1.00th=[ 111], 5.00th=[ 111], 10.00th=[ 111], 20.00th=[ 111], | 30.00th=[ 259], 40.00th=[ 259], 50.00th=[ 338], 60.00th=[ 338], | 70.00th=[ 502], 80.00th=[ 502], 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= 2000, max= 4000, per=68.02%, avg=2670.33, stdev=1151.54, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 250=58.33%, 500=16.67%, 750=8.33%, 2000=8.33%, >=2000=8.33% cpu : usr=0.00%, sys=11.33%, ctx=696, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=146361: Tue Sep 15 02:12:35 2026 read: IOPS=0, BW=280KiB/s (287kB/s)(2048KiB/7303msec) clat (usec): min=841, max=296204, avg=148523.18, stdev=208853.54 lat (usec): min=842, max=296207, avg=148525.01, stdev=208854.28 clat percentiles (usec): | 1.00th=[ 840], 5.00th=[ 840], 10.00th=[ 840], 20.00th=[ 840], | 30.00th=[ 840], 40.00th=[ 840], 50.00th=[ 840], 60.00th=[295699], | 70.00th=[295699], 80.00th=[295699], 90.00th=[295699], 95.00th=[295699], | 99.00th=[295699], 99.50th=[295699], 99.90th=[295699], 99.95th=[295699], | 99.99th=[295699] bw ( KiB/s): min= 1404, max= 2000, per=60.70%, avg=1702.00, stdev=421.44, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1402KiB/s (1436kB/s)(10.0MiB/7303msec); 0 zone resets clat (msec): min=131, max=3688, avg=671.72, stdev=1082.59 lat (msec): min=131, max=3688, avg=671.89, stdev=1082.55 clat percentiles (msec): | 1.00th=[ 132], 5.00th=[ 132], 10.00th=[ 132], 20.00th=[ 146], | 30.00th=[ 182], 40.00th=[ 188], 50.00th=[ 197], 60.00th=[ 338], | 70.00th=[ 422], 80.00th=[ 684], 90.00th=[ 743], 95.00th=[ 3675], | 99.00th=[ 3675], 99.50th=[ 3675], 99.90th=[ 3675], 99.95th=[ 3675], | 99.99th=[ 3675] bw ( KiB/s): min= 2000, max= 5953, per=100.00%, avg=4034.00, stdev=1615.17, samples=4 iops : min= 1, max= 5, avg= 3.25, stdev= 1.71, samples=4 lat (usec) : 1000=8.33% lat (msec) : 250=41.67%, 500=25.00%, 750=16.67%, >=2000=8.33% cpu : usr=0.01%, sys=9.60%, ctx=188, 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=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=146362: Tue Sep 15 02:12:35 2026 read: IOPS=0, BW=872KiB/s (893kB/s)(6144KiB/7043msec) clat (usec): min=543, max=501621, avg=217220.04, stdev=201775.65 lat (usec): min=544, max=501622, avg=217221.27, stdev=201775.67 clat percentiles (usec): | 1.00th=[ 545], 5.00th=[ 545], 10.00th=[ 545], 20.00th=[ 693], | 30.00th=[ 693], 40.00th=[147850], 50.00th=[147850], 60.00th=[325059], | 70.00th=[329253], 80.00th=[329253], 90.00th=[501220], 95.00th=[501220], | 99.00th=[501220], 99.50th=[501220], 99.90th=[501220], 99.95th=[501220], | 99.99th=[501220] bw ( KiB/s): min= 1984, max= 4000, per=89.40%, avg=2506.75, stdev=995.81, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=0, BW=872KiB/s (893kB/s)(6144KiB/7043msec); 0 zone resets clat (msec): min=299, max=3338, avg=925.85, stdev=1186.53 lat (msec): min=299, max=3338, avg=925.94, stdev=1186.53 clat percentiles (msec): | 1.00th=[ 300], 5.00th=[ 300], 10.00th=[ 300], 20.00th=[ 342], | 30.00th=[ 342], 40.00th=[ 472], 50.00th=[ 472], 60.00th=[ 542], | 70.00th=[ 567], 80.00th=[ 567], 90.00th=[ 3339], 95.00th=[ 3339], | 99.00th=[ 3339], 99.50th=[ 3339], 99.90th=[ 3339], 99.95th=[ 3339], | 99.99th=[ 3339] bw ( KiB/s): min= 1408, max= 2048, per=48.17%, avg=1891.20, stdev=270.92, samples=5 iops : min= 1, max= 2, avg= 1.20, stdev= 0.45, samples=5 lat (usec) : 750=16.67% lat (msec) : 250=8.33%, 500=41.67%, 750=25.00%, >=2000=8.33% cpu : usr=0.00%, sys=8.82%, ctx=213, 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=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=146363: Tue Sep 15 02:12:35 2026 read: IOPS=0, BW=799KiB/s (818kB/s)(5120KiB/6411msec) clat (usec): min=959, max=235375, avg=92809.98, stdev=124790.85 lat (usec): min=960, max=235377, avg=92811.48, stdev=124790.98 clat percentiles (usec): | 1.00th=[ 963], 5.00th=[ 963], 10.00th=[ 963], 20.00th=[ 963], | 30.00th=[ 1909], 40.00th=[ 1909], 50.00th=[ 2311], 60.00th=[ 2311], | 70.00th=[223347], 80.00th=[223347], 90.00th=[235930], 95.00th=[235930], | 99.00th=[235930], 99.50th=[235930], 99.90th=[235930], 99.95th=[235930], | 99.99th=[235930] bw ( KiB/s): min= 8078, max= 8078, per=100.00%, avg=8078.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=1, BW=1118KiB/s (1145kB/s)(7168KiB/6411msec); 0 zone resets clat (msec): min=234, max=3396, avg=837.67, stdev=1133.64 lat (msec): min=234, max=3397, avg=837.77, stdev=1133.66 clat percentiles (msec): | 1.00th=[ 234], 5.00th=[ 234], 10.00th=[ 234], 20.00th=[ 300], | 30.00th=[ 439], 40.00th=[ 439], 50.00th=[ 477], 60.00th=[ 489], | 70.00th=[ 489], 80.00th=[ 531], 90.00th=[ 3406], 95.00th=[ 3406], | 99.00th=[ 3406], 99.50th=[ 3406], 99.90th=[ 3406], 99.95th=[ 3406], | 99.99th=[ 3406] bw ( KiB/s): min= 1976, max= 4079, per=61.71%, avg=2422.80, stdev=926.28, samples=5 iops : min= 1, max= 3, avg= 1.60, stdev= 0.89, samples=5 lat (usec) : 1000=8.33% lat (msec) : 2=8.33%, 4=8.33%, 250=25.00%, 500=33.33%, 750=8.33% lat (msec) : >=2000=8.33% cpu : usr=0.00%, sys=8.36%, ctx=171, 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=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=2804KiB/s (2872kB/s), 280KiB/s-1050KiB/s (287kB/s-1075kB/s), io=20.0MiB (20.0MB), run=6411-7303msec WRITE: bw=3926KiB/s (4020kB/s), 750KiB/s-1402KiB/s (768kB/s-1436kB/s), io=28.0MiB (29.4MB), run=6411-7303msec 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=146369: Tue Sep 15 02:12:49 2026 read: IOPS=1, BW=4191KiB/s (4292kB/s)(12.0MiB/2932msec) clat (msec): min=793, max=1048, avg=944.46, stdev=133.86 lat (msec): min=793, max=1048, avg=944.47, stdev=133.86 clat percentiles (msec): | 1.00th=[ 793], 5.00th=[ 793], 10.00th=[ 793], 20.00th=[ 793], | 30.00th=[ 793], 40.00th=[ 995], 50.00th=[ 995], 60.00th=[ 995], | 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= 8015, max= 8192, per=100.00%, avg=8103.50, stdev=125.16, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 1000=66.67%, 2000=33.33% cpu : usr=0.00%, sys=15.63%, ctx=418, 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=146370: Tue Sep 15 02:12:49 2026 read: IOPS=0, BW=1267KiB/s (1298kB/s)(4096KiB/3232msec) clat (nsec): min=1037.7M, max=1037.7M, avg=1037739630.00, stdev= 0.00 lat (nsec): min=1037.7M, max=1037.7M, avg=1037742198.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1036], 5.00th=[ 1036], 10.00th=[ 1036], 20.00th=[ 1036], | 30.00th=[ 1036], 40.00th=[ 1036], 50.00th=[ 1036], 60.00th=[ 1036], | 70.00th=[ 1036], 80.00th=[ 1036], 90.00th=[ 1036], 95.00th=[ 1036], | 99.00th=[ 1036], 99.50th=[ 1036], 99.90th=[ 1036], 99.95th=[ 1036], | 99.99th=[ 1036] bw ( KiB/s): min= 8192, max= 8192, per=100.00%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2535KiB/s (2595kB/s)(8192KiB/3232msec); 0 zone resets clat (msec): min=694, max=1481, avg=1087.95, stdev=556.58 lat (msec): min=694, max=1481, avg=1088.32, stdev=556.55 clat percentiles (msec): | 1.00th=[ 693], 5.00th=[ 693], 10.00th=[ 693], 20.00th=[ 693], | 30.00th=[ 693], 40.00th=[ 693], 50.00th=[ 693], 60.00th=[ 1485], | 70.00th=[ 1485], 80.00th=[ 1485], 90.00th=[ 1485], 95.00th=[ 1485], | 99.00th=[ 1485], 99.50th=[ 1485], 99.90th=[ 1485], 99.95th=[ 1485], | 99.99th=[ 1485] bw ( KiB/s): min= 8015, max= 8015, per=79.06%, avg=8015.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=33.33%, 2000=66.67% cpu : usr=0.06%, sys=4.18%, ctx=54, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=146371: Tue Sep 15 02:12:49 2026 write: IOPS=1, BW=5406KiB/s (5536kB/s)(12.0MiB/2273msec); 0 zone resets clat (msec): min=384, max=952, avg=688.13, stdev=286.12 lat (msec): min=384, max=955, avg=690.19, stdev=287.41 clat percentiles (msec): | 1.00th=[ 384], 5.00th=[ 384], 10.00th=[ 384], 20.00th=[ 384], | 30.00th=[ 384], 40.00th=[ 726], 50.00th=[ 726], 60.00th=[ 726], | 70.00th=[ 953], 80.00th=[ 953], 90.00th=[ 953], 95.00th=[ 953], | 99.00th=[ 953], 99.50th=[ 953], 99.90th=[ 953], 99.95th=[ 953], | 99.99th=[ 953] bw ( KiB/s): min= 8110, max= 8192, per=80.40%, avg=8151.00, stdev=57.98, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 500=33.33%, 750=33.33%, 1000=33.33% cpu : usr=0.09%, sys=5.55%, ctx=45, 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=146372: Tue Sep 15 02:12:49 2026 write: IOPS=1, BW=4973KiB/s (5092kB/s)(12.0MiB/2471msec); 0 zone resets clat (msec): min=361, max=1286, avg=810.07, stdev=463.18 lat (msec): min=361, max=1286, avg=810.54, stdev=463.09 clat percentiles (msec): | 1.00th=[ 363], 5.00th=[ 363], 10.00th=[ 363], 20.00th=[ 363], | 30.00th=[ 363], 40.00th=[ 785], 50.00th=[ 785], 60.00th=[ 785], | 70.00th=[ 1284], 80.00th=[ 1284], 90.00th=[ 1284], 95.00th=[ 1284], | 99.00th=[ 1284], 99.50th=[ 1284], 99.90th=[ 1284], 99.95th=[ 1284], | 99.99th=[ 1284] bw ( KiB/s): min= 8110, max= 8110, per=80.00%, avg=8110.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=7.57%, ctx=81, 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=5069KiB/s (5191kB/s), 1267KiB/s-4191KiB/s (1298kB/s-4292kB/s), io=16.0MiB (16.8MB), run=2932-3232msec WRITE: bw=9.90MiB/s (10.4MB/s), 2535KiB/s-5406KiB/s (2595kB/s-5536kB/s), io=32.0MiB (33.6MB), run=2273-3232msec rand-rw: (groupid=0, jobs=1): err= 0: pid=146375: Tue Sep 15 02:12:50 2026 read: IOPS=1, BW=4227KiB/s (4328kB/s)(12.0MiB/2907msec) clat (msec): min=468, max=1468, avg=968.42, stdev=499.68 lat (msec): min=468, max=1468, avg=968.42, stdev=499.68 clat percentiles (msec): | 1.00th=[ 468], 5.00th=[ 468], 10.00th=[ 468], 20.00th=[ 468], | 30.00th=[ 468], 40.00th=[ 969], 50.00th=[ 969], 60.00th=[ 969], | 70.00th=[ 1469], 80.00th=[ 1469], 90.00th=[ 1469], 95.00th=[ 1469], | 99.00th=[ 1469], 99.50th=[ 1469], 99.90th=[ 1469], 99.95th=[ 1469], | 99.99th=[ 1469] bw ( KiB/s): min= 8175, max= 8175, per=100.00%, avg=8175.00, stdev= 0.00, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=4.30%, 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=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=146376: Tue Sep 15 02:12:50 2026 read: IOPS=0, BW=1184KiB/s (1213kB/s)(4096KiB/3459msec) clat (nsec): min=659923k, max=659923k, avg=659922562.00, stdev= 0.00 lat (nsec): min=659926k, max=659926k, avg=659925813.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 659], 5.00th=[ 659], 10.00th=[ 659], 20.00th=[ 659], | 30.00th=[ 659], 40.00th=[ 659], 50.00th=[ 659], 60.00th=[ 659], | 70.00th=[ 659], 80.00th=[ 659], 90.00th=[ 659], 95.00th=[ 659], | 99.00th=[ 659], 99.50th=[ 659], 99.90th=[ 659], 99.95th=[ 659], | 99.99th=[ 659] bw ( KiB/s): min= 5818, max= 5818, per=100.00%, avg=5818.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2368KiB/s (2425kB/s)(8192KiB/3459msec); 0 zone resets clat (msec): min=809, max=1987, avg=1398.25, stdev=833.13 lat (msec): min=809, max=1987, avg=1398.75, stdev=833.18 clat percentiles (msec): | 1.00th=[ 810], 5.00th=[ 810], 10.00th=[ 810], 20.00th=[ 810], | 30.00th=[ 810], 40.00th=[ 810], 50.00th=[ 810], 60.00th=[ 1989], | 70.00th=[ 1989], 80.00th=[ 1989], 90.00th=[ 1989], 95.00th=[ 1989], | 99.00th=[ 1989], 99.50th=[ 1989], 99.90th=[ 1989], 99.95th=[ 1989], | 99.99th=[ 1989] bw ( KiB/s): min= 8175, max= 8175, per=86.33%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.03%, sys=4.48%, ctx=57, 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=146377: Tue Sep 15 02:12:50 2026 write: IOPS=0, BW=3551KiB/s (3637kB/s)(12.0MiB/3460msec); 0 zone resets clat (msec): min=421, max=1554, avg=1152.49, stdev=634.16 lat (msec): min=421, max=1554, avg=1153.09, stdev=634.28 clat percentiles (msec): | 1.00th=[ 422], 5.00th=[ 422], 10.00th=[ 422], 20.00th=[ 422], | 30.00th=[ 422], 40.00th=[ 1485], 50.00th=[ 1485], 60.00th=[ 1485], | 70.00th=[ 1552], 80.00th=[ 1552], 90.00th=[ 1552], 95.00th=[ 1552], | 99.00th=[ 1552], 99.50th=[ 1552], 99.90th=[ 1552], 99.95th=[ 1552], | 99.99th=[ 1552] bw ( KiB/s): min= 8110, max= 8159, per=85.90%, avg=8134.50, stdev=34.65, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.03%, sys=4.68%, ctx=43, 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=146378: Tue Sep 15 02:12:50 2026 write: IOPS=1, BW=5285KiB/s (5412kB/s)(12.0MiB/2325msec); 0 zone resets clat (msec): min=328, max=1259, avg=773.73, stdev=466.89 lat (msec): min=329, max=1260, avg=774.41, stdev=466.64 clat percentiles (msec): | 1.00th=[ 330], 5.00th=[ 330], 10.00th=[ 330], 20.00th=[ 330], | 30.00th=[ 330], 40.00th=[ 735], 50.00th=[ 735], 60.00th=[ 735], | 70.00th=[ 1267], 80.00th=[ 1267], 90.00th=[ 1267], 95.00th=[ 1267], | 99.00th=[ 1267], 99.50th=[ 1267], 99.90th=[ 1267], 99.95th=[ 1267], | 99.99th=[ 1267] bw ( KiB/s): min= 5520, max= 8192, per=72.40%, avg=6856.00, stdev=1889.39, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 500=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.00%, sys=5.21%, ctx=50, 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=4737KiB/s (4850kB/s), 1184KiB/s-4227KiB/s (1213kB/s-4328kB/s), io=16.0MiB (16.8MB), run=2907-3459msec WRITE: bw=9471KiB/s (9698kB/s), 2368KiB/s-5285KiB/s (2425kB/s-5412kB/s), io=32.0MiB (33.6MB), run=2325-3460msec