== sanity test 398b: DIO and buffer IO race ============== 07:08:27 (1789124907) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 6.97017 s, 7.2 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=178858: Fri Sep 11 07:10:54 2026 read: IOPS=11, BW=47.5KiB/s (48.7kB/s)(5992KiB/126080msec) clat (usec): min=35, max=934184, avg=45594.14, stdev=38070.48 lat (usec): min=35, max=934186, avg=45599.17, stdev=38069.71 clat percentiles (usec): | 1.00th=[ 55], 5.00th=[ 12256], 10.00th=[ 16581], 20.00th=[ 22414], | 30.00th=[ 27919], 40.00th=[ 33817], 50.00th=[ 38536], 60.00th=[ 45876], | 70.00th=[ 53216], 80.00th=[ 63701], 90.00th=[ 80217], 95.00th=[ 96994], | 99.00th=[147850], 99.50th=[200279], 99.90th=[371196], 99.95th=[935330], | 99.99th=[935330] bw ( KiB/s): min= 11, max= 101, per=24.83%, avg=47.18, stdev=18.34, samples=248 iops : min= 2, max= 25, avg=11.11, stdev= 4.62, samples=248 write: IOPS=12, BW=49.9KiB/s (51.1kB/s)(6296KiB/126080msec); 0 zone resets clat (usec): min=1005, max=261750, avg=36409.73, stdev=36448.36 lat (usec): min=1006, max=261751, avg=36413.91, stdev=36448.07 clat percentiles (usec): | 1.00th=[ 1139], 5.00th=[ 1336], 10.00th=[ 1975], 20.00th=[ 4113], | 30.00th=[ 7963], 40.00th=[ 19006], 50.00th=[ 27395], 60.00th=[ 35914], | 70.00th=[ 47449], 80.00th=[ 64226], 90.00th=[ 85459], 95.00th=[103285], | 99.00th=[160433], 99.50th=[193987], 99.90th=[238027], 99.95th=[261096], | 99.99th=[261096] bw ( KiB/s): min= 7, max= 127, per=24.99%, avg=49.72, stdev=21.53, samples=247 iops : min= 1, max= 31, avg=11.76, stdev= 5.42, samples=247 lat (usec) : 50=0.20%, 100=1.37%, 250=0.13%, 500=0.13%, 750=0.03% lat (msec) : 2=5.37%, 4=4.82%, 10=6.54%, 20=9.83%, 50=40.27% lat (msec) : 100=26.11%, 250=5.08%, 500=0.10%, 1000=0.03% cpu : usr=0.08%, sys=5.09%, ctx=6830, 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=178860: Fri Sep 11 07:10:54 2026 read: IOPS=11, BW=47.7KiB/s (48.8kB/s)(5940KiB/124536msec) clat (usec): min=41, max=265007, avg=44922.92, stdev=27956.97 lat (usec): min=42, max=265009, avg=44926.09, stdev=27956.60 clat percentiles (usec): | 1.00th=[ 60], 5.00th=[ 12649], 10.00th=[ 18220], 20.00th=[ 23462], | 30.00th=[ 28443], 40.00th=[ 33424], 50.00th=[ 39060], 60.00th=[ 45351], | 70.00th=[ 53740], 80.00th=[ 64226], 90.00th=[ 79168], 95.00th=[ 92799], | 99.00th=[137364], 99.50th=[166724], 99.90th=[256902], 99.95th=[265290], | 99.99th=[265290] bw ( KiB/s): min= 5, max= 103, per=24.92%, avg=47.36, stdev=17.03, samples=245 iops : min= 1, max= 25, avg=11.16, stdev= 4.28, samples=245 write: IOPS=12, BW=50.0KiB/s (52.2kB/s)(6348KiB/124536msec); 0 zone resets clat (usec): min=1073, max=890892, avg=36127.53, stdev=42167.49 lat (usec): min=1074, max=890894, avg=36132.97, stdev=42166.92 clat percentiles (usec): | 1.00th=[ 1156], 5.00th=[ 1369], 10.00th=[ 2024], 20.00th=[ 3949], | 30.00th=[ 7242], 40.00th=[ 16450], 50.00th=[ 27132], 60.00th=[ 36439], | 70.00th=[ 46924], 80.00th=[ 62653], 90.00th=[ 85459], 95.00th=[105382], | 99.00th=[147850], 99.50th=[185598], 99.90th=[337642], 99.95th=[893387], | 99.99th=[893387] bw ( KiB/s): min= 7, max= 120, per=25.47%, avg=50.69, stdev=21.42, samples=245 iops : min= 1, max= 30, avg=11.99, stdev= 5.40, samples=245 lat (usec) : 50=0.10%, 100=1.14%, 250=0.26%, 500=0.03%, 750=0.07% lat (msec) : 2=5.18%, 4=5.40%, 10=7.29%, 20=9.54%, 50=40.10% lat (msec) : 100=25.85%, 250=4.88%, 500=0.13%, 1000=0.03% cpu : usr=0.09%, sys=5.06%, ctx=6786, 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=178862: Fri Sep 11 07:10:54 2026 read: IOPS=12, BW=48.9KiB/s (50.1kB/s)(6028KiB/123217msec) clat (usec): min=33, max=908768, avg=45823.08, stdev=38866.41 lat (usec): min=33, max=908770, avg=45826.86, stdev=38865.61 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 7504], 10.00th=[ 17171], 20.00th=[ 22676], | 30.00th=[ 27395], 40.00th=[ 32900], 50.00th=[ 39584], 60.00th=[ 45351], | 70.00th=[ 53216], 80.00th=[ 64226], 90.00th=[ 80217], 95.00th=[100140], | 99.00th=[164627], 99.50th=[189793], 99.90th=[383779], 99.95th=[910164], | 99.99th=[910164] bw ( KiB/s): min= 5, max= 103, per=25.57%, avg=48.57, stdev=19.02, samples=242 iops : min= 1, max= 25, avg=11.46, stdev= 4.77, samples=242 write: IOPS=12, BW=50.8KiB/s (52.0kB/s)(6260KiB/123217msec); 0 zone resets clat (usec): min=977, max=207872, avg=34281.11, stdev=33860.73 lat (usec): min=979, max=207872, avg=34284.01, stdev=33861.29 clat percentiles (usec): | 1.00th=[ 1123], 5.00th=[ 1303], 10.00th=[ 1926], 20.00th=[ 3654], | 30.00th=[ 6718], 40.00th=[ 15664], 50.00th=[ 25822], 60.00th=[ 34866], | 70.00th=[ 46400], 80.00th=[ 62129], 90.00th=[ 81265], 95.00th=[ 98042], | 99.00th=[141558], 99.50th=[160433], 99.90th=[191890], 99.95th=[208667], | 99.99th=[208667] bw ( KiB/s): min= 7, max= 126, per=25.30%, avg=50.35, stdev=22.31, samples=242 iops : min= 1, max= 31, avg=11.91, stdev= 5.60, samples=242 lat (usec) : 50=0.23%, 100=1.82%, 250=0.20%, 500=0.07%, 1000=0.07% lat (msec) : 2=5.34%, 4=5.92%, 10=7.10%, 20=8.56%, 50=40.10% lat (msec) : 100=25.78%, 250=4.69%, 500=0.10%, 1000=0.03% cpu : usr=0.07%, sys=4.97%, ctx=6636, 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=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=178864: Fri Sep 11 07:10:54 2026 read: IOPS=11, BW=47.0KiB/s (49.1kB/s)(6052KiB/126151msec) clat (usec): min=46, max=987372, avg=45977.72, stdev=36950.58 lat (usec): min=47, max=987373, avg=45979.61, stdev=36950.65 clat percentiles (usec): | 1.00th=[ 55], 5.00th=[ 9241], 10.00th=[ 17171], 20.00th=[ 23725], | 30.00th=[ 28705], 40.00th=[ 34866], 50.00th=[ 40633], 60.00th=[ 47449], | 70.00th=[ 55313], 80.00th=[ 65274], 90.00th=[ 81265], 95.00th=[ 93848], | 99.00th=[143655], 99.50th=[166724], 99.90th=[198181], 99.95th=[985662], | 99.99th=[985662] bw ( KiB/s): min= 7, max= 111, per=25.06%, avg=47.62, stdev=17.74, samples=248 iops : min= 1, max= 27, avg=11.22, stdev= 4.45, samples=248 write: IOPS=12, BW=49.4KiB/s (50.6kB/s)(6236KiB/126151msec); 0 zone resets clat (usec): min=1009, max=236763, avg=35971.98, stdev=36158.73 lat (usec): min=1011, max=236764, avg=35975.02, stdev=36158.99 clat percentiles (usec): | 1.00th=[ 1123], 5.00th=[ 1336], 10.00th=[ 2089], 20.00th=[ 4228], | 30.00th=[ 7701], 40.00th=[ 17433], 50.00th=[ 26870], 60.00th=[ 35390], | 70.00th=[ 46924], 80.00th=[ 62653], 90.00th=[ 86508], 95.00th=[107480], | 99.00th=[154141], 99.50th=[179307], 99.90th=[225444], 99.95th=[235930], | 99.99th=[235930] bw ( KiB/s): min= 7, max= 112, per=24.63%, avg=49.02, stdev=19.76, samples=248 iops : min= 1, max= 28, avg=11.57, stdev= 4.96, samples=248 lat (usec) : 50=0.16%, 100=1.56%, 250=0.36%, 500=0.10%, 750=0.03% lat (usec) : 1000=0.03% lat (msec) : 2=4.92%, 4=4.92%, 10=7.55%, 20=8.98%, 50=39.49% lat (msec) : 100=26.73%, 250=5.14%, 1000=0.03% cpu : usr=0.08%, sys=5.05%, ctx=6859, 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=190KiB/s (195kB/s), 47.5KiB/s-48.9KiB/s (48.7kB/s-50.1kB/s), io=23.4MiB (24.6MB), run=123217-126151msec WRITE: bw=199KiB/s (204kB/s), 49.4KiB/s-50.0KiB/s (50.6kB/s-52.2kB/s), io=24.6MiB (25.7MB), run=123217-126151msec rand-rw: (groupid=0, jobs=1): err= 0: pid=178859: Fri Sep 11 07:11:34 2026 read: IOPS=9, BW=36.3KiB/s (37.1kB/s)(5992KiB/165268msec) clat (msec): min=4, max=936, avg=43.12, stdev=45.40 lat (msec): min=4, max=936, avg=43.13, stdev=45.40 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 20], 40.00th=[ 24], 50.00th=[ 29], 60.00th=[ 34], | 70.00th=[ 44], 80.00th=[ 63], 90.00th=[ 99], 95.00th=[ 124], | 99.00th=[ 186], 99.50th=[ 222], 99.90th=[ 313], 99.95th=[ 936], | 99.99th=[ 936] bw ( KiB/s): min= 7, max= 131, per=25.57%, avg=36.82, stdev=24.43, samples=316 iops : min= 1, max= 32, avg= 8.54, stdev= 6.16, samples=316 write: IOPS=9, BW=38.1KiB/s (39.0kB/s)(6296KiB/165268msec); 0 zone resets clat (msec): min=8, max=392, avg=63.67, stdev=43.47 lat (msec): min=8, max=392, avg=63.67, stdev=43.46 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 21], 10.00th=[ 25], 20.00th=[ 31], | 30.00th=[ 36], 40.00th=[ 42], 50.00th=[ 51], 60.00th=[ 60], | 70.00th=[ 72], 80.00th=[ 91], 90.00th=[ 126], 95.00th=[ 155], | 99.00th=[ 205], 99.50th=[ 230], 99.90th=[ 380], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 7, max= 135, per=25.31%, avg=38.21, stdev=23.75, samples=320 iops : min= 1, max= 33, avg= 8.90, stdev= 5.98, samples=320 lat (msec) : 10=2.15%, 20=14.88%, 50=44.99%, 100=24.87%, 250=12.79% lat (msec) : 500=0.29%, 1000=0.03% cpu : usr=0.06%, sys=1.71%, ctx=4703, 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=178861: Fri Sep 11 07:11:34 2026 read: IOPS=8, BW=35.9KiB/s (36.8kB/s)(5940KiB/165328msec) clat (msec): min=5, max=1029, avg=42.06, stdev=45.62 lat (msec): min=5, max=1029, avg=42.06, stdev=45.62 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 20], 40.00th=[ 24], 50.00th=[ 28], 60.00th=[ 34], | 70.00th=[ 44], 80.00th=[ 60], 90.00th=[ 94], 95.00th=[ 124], | 99.00th=[ 190], 99.50th=[ 222], 99.90th=[ 317], 99.95th=[ 1028], | 99.99th=[ 1028] bw ( KiB/s): min= 7, max= 140, per=25.60%, avg=36.86, stdev=25.46, samples=313 iops : min= 1, max= 35, avg= 8.56, stdev= 6.42, samples=313 write: IOPS=9, BW=38.4KiB/s (39.3kB/s)(6348KiB/165328msec); 0 zone resets clat (msec): min=11, max=374, avg=64.51, stdev=44.58 lat (msec): min=11, max=374, avg=64.51, stdev=44.58 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 22], 10.00th=[ 25], 20.00th=[ 31], | 30.00th=[ 37], 40.00th=[ 44], 50.00th=[ 50], 60.00th=[ 59], | 70.00th=[ 77], 80.00th=[ 95], 90.00th=[ 125], 95.00th=[ 148], | 99.00th=[ 224], 99.50th=[ 259], 99.90th=[ 368], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 7, max= 111, per=25.29%, avg=38.19, stdev=22.90, samples=322 iops : min= 1, max= 27, avg= 8.89, stdev= 5.77, samples=322 lat (msec) : 10=1.89%, 20=15.01%, 50=45.41%, 100=24.32%, 250=12.99% lat (msec) : 500=0.36%, 2000=0.03% cpu : usr=0.06%, sys=1.77%, ctx=4880, 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=178863: Fri Sep 11 07:11:34 2026 read: IOPS=9, BW=36.2KiB/s (37.1kB/s)(6028KiB/166329msec) clat (msec): min=5, max=305, avg=43.58, stdev=40.51 lat (msec): min=5, max=305, avg=43.58, stdev=40.52 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 20], 40.00th=[ 24], 50.00th=[ 30], 60.00th=[ 36], | 70.00th=[ 45], 80.00th=[ 64], 90.00th=[ 95], 95.00th=[ 132], | 99.00th=[ 201], 99.50th=[ 243], 99.90th=[ 271], 99.95th=[ 305], | 99.99th=[ 305] bw ( KiB/s): min= 7, max= 126, per=25.35%, avg=36.50, stdev=24.23, samples=320 iops : min= 1, max= 31, avg= 8.48, stdev= 6.12, samples=320 write: IOPS=9, BW=37.6KiB/s (38.5kB/s)(6260KiB/166329msec); 0 zone resets clat (msec): min=12, max=1114, avg=64.03, stdev=51.93 lat (msec): min=12, max=1114, avg=64.03, stdev=51.93 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 22], 10.00th=[ 25], 20.00th=[ 31], | 30.00th=[ 36], 40.00th=[ 42], 50.00th=[ 48], 60.00th=[ 58], | 70.00th=[ 73], 80.00th=[ 93], 90.00th=[ 122], 95.00th=[ 146], | 99.00th=[ 224], 99.50th=[ 259], 99.90th=[ 397], 99.95th=[ 1116], | 99.99th=[ 1116] bw ( KiB/s): min= 7, max= 119, per=24.78%, avg=37.42, stdev=23.12, samples=324 iops : min= 1, max= 29, avg= 8.70, stdev= 5.83, samples=324 lat (msec) : 10=1.86%, 20=14.97%, 50=46.09%, 100=23.70%, 250=12.86% lat (msec) : 500=0.49%, 2000=0.03% cpu : usr=0.06%, sys=1.72%, ctx=4710, 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=178865: Fri Sep 11 07:11:34 2026 read: IOPS=9, BW=36.8KiB/s (37.7kB/s)(6052KiB/164492msec) clat (msec): min=5, max=298, avg=42.77, stdev=39.25 lat (msec): min=5, max=298, avg=42.78, stdev=39.25 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 20], 40.00th=[ 24], 50.00th=[ 29], 60.00th=[ 36], | 70.00th=[ 44], 80.00th=[ 62], 90.00th=[ 94], 95.00th=[ 130], | 99.00th=[ 192], 99.50th=[ 218], 99.90th=[ 266], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 7, max= 134, per=26.07%, avg=37.54, stdev=24.73, samples=314 iops : min= 1, max= 33, avg= 8.73, stdev= 6.24, samples=314 write: IOPS=9, BW=37.9KiB/s (38.8kB/s)(6236KiB/164492msec); 0 zone resets clat (msec): min=11, max=1018, avg=63.70, stdev=49.95 lat (msec): min=11, max=1018, avg=63.70, stdev=49.95 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 22], 10.00th=[ 26], 20.00th=[ 31], | 30.00th=[ 36], 40.00th=[ 42], 50.00th=[ 50], 60.00th=[ 60], | 70.00th=[ 73], 80.00th=[ 91], 90.00th=[ 121], 95.00th=[ 148], | 99.00th=[ 220], 99.50th=[ 262], 99.90th=[ 393], 99.95th=[ 1020], | 99.99th=[ 1020] bw ( KiB/s): min= 7, max= 127, per=25.37%, avg=38.31, stdev=22.97, samples=317 iops : min= 1, max= 31, avg= 8.92, stdev= 5.80, samples=317 lat (msec) : 10=1.92%, 20=15.17%, 50=45.48%, 100=25.03%, 250=11.85% lat (msec) : 500=0.52%, 2000=0.03% cpu : usr=0.07%, sys=1.77%, ctx=4743, 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=144KiB/s (148kB/s), 35.9KiB/s-36.8KiB/s (36.8kB/s-37.7kB/s), io=23.4MiB (24.6MB), run=164492-166329msec WRITE: bw=151KiB/s (155kB/s), 37.6KiB/s-38.4KiB/s (38.5kB/s-39.3kB/s), io=24.6MiB (25.7MB), run=164492-166329msec 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=178908: Fri Sep 11 07:12:18 2026 read: IOPS=10, BW=168KiB/s (172kB/s)(5920KiB/35298msec) clat (usec): min=56, max=193047, avg=49788.09, stdev=32756.69 lat (usec): min=58, max=193049, avg=49792.13, stdev=32758.03 clat percentiles (usec): | 1.00th=[ 59], 5.00th=[ 89], 10.00th=[ 16188], 20.00th=[ 26084], | 30.00th=[ 30016], 40.00th=[ 36439], 50.00th=[ 45351], 60.00th=[ 53216], | 70.00th=[ 61604], 80.00th=[ 71828], 90.00th=[ 84411], 95.00th=[113771], | 99.00th=[162530], 99.50th=[179307], 99.90th=[193987], 99.95th=[193987], | 99.99th=[193987] bw ( KiB/s): min= 31, max= 351, per=24.20%, avg=164.07, stdev=64.40, samples=69 iops : min= 1, max= 21, avg= 9.45, stdev= 4.08, samples=69 write: IOPS=11, BW=180KiB/s (185kB/s)(6368KiB/35298msec); 0 zone resets clat (usec): min=1515, max=279882, avg=41724.59, stdev=40274.95 lat (usec): min=1517, max=279885, avg=41727.07, stdev=40274.85 clat percentiles (usec): | 1.00th=[ 1614], 5.00th=[ 2008], 10.00th=[ 3228], 20.00th=[ 6128], | 30.00th=[ 13042], 40.00th=[ 21627], 50.00th=[ 32637], 60.00th=[ 43254], | 70.00th=[ 52167], 80.00th=[ 70779], 90.00th=[ 92799], 95.00th=[120062], | 99.00th=[198181], 99.50th=[256902], 99.90th=[278922], 99.95th=[278922], | 99.99th=[278922] bw ( KiB/s): min= 30, max= 378, per=25.00%, avg=178.26, stdev=75.99, samples=69 iops : min= 1, max= 23, avg=10.35, stdev= 4.80, samples=69 lat (usec) : 100=2.73%, 250=0.39%, 500=0.13% lat (msec) : 2=2.47%, 4=4.43%, 10=7.16%, 20=8.20%, 50=36.07% lat (msec) : 100=30.99%, 250=7.16%, 500=0.26% cpu : usr=0.05%, sys=5.28%, ctx=1858, 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=178910: Fri Sep 11 07:12:18 2026 read: IOPS=10, BW=166KiB/s (170kB/s)(5744KiB/34614msec) clat (usec): min=46, max=204072, avg=51389.44, stdev=33294.51 lat (usec): min=46, max=204074, avg=51392.77, stdev=33294.75 clat percentiles (usec): | 1.00th=[ 58], 5.00th=[ 80], 10.00th=[ 16450], 20.00th=[ 25822], | 30.00th=[ 32375], 40.00th=[ 40109], 50.00th=[ 47973], 60.00th=[ 55313], | 70.00th=[ 63177], 80.00th=[ 72877], 90.00th=[ 87557], 95.00th=[109577], | 99.00th=[179307], 99.50th=[204473], 99.90th=[204473], 99.95th=[204473], | 99.99th=[204473] bw ( KiB/s): min= 30, max= 351, per=24.35%, avg=165.07, stdev=69.95, samples=68 iops : min= 1, max= 21, avg= 9.51, stdev= 4.45, samples=68 write: IOPS=11, BW=189KiB/s (194kB/s)(6544KiB/34614msec); 0 zone resets clat (usec): min=1696, max=179023, avg=38951.71, stdev=37586.49 lat (usec): min=1698, max=179025, avg=38954.16, stdev=37586.43 clat percentiles (usec): | 1.00th=[ 1795], 5.00th=[ 2540], 10.00th=[ 3720], 20.00th=[ 7111], | 30.00th=[ 11600], 40.00th=[ 20841], 50.00th=[ 27657], 60.00th=[ 36439], | 70.00th=[ 49021], 80.00th=[ 65274], 90.00th=[ 93848], 95.00th=[122160], | 99.00th=[158335], 99.50th=[170918], 99.90th=[179307], 99.95th=[179307], | 99.99th=[179307] bw ( KiB/s): min= 31, max= 446, per=26.75%, avg=190.72, stdev=92.64, samples=67 iops : min= 1, max= 27, avg=11.13, stdev= 5.79, samples=67 lat (usec) : 50=0.13%, 100=2.60%, 250=0.65%, 500=0.13% lat (msec) : 2=1.82%, 4=4.30%, 10=8.33%, 20=8.85%, 50=35.68% lat (msec) : 100=29.69%, 250=7.81% cpu : usr=0.08%, sys=5.21%, ctx=1834, 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=178912: Fri Sep 11 07:12:18 2026 read: IOPS=11, BW=184KiB/s (189kB/s)(6256KiB/33945msec) clat (usec): min=53, max=214301, avg=49499.67, stdev=31005.13 lat (usec): min=55, max=214303, avg=49501.60, stdev=31005.65 clat percentiles (usec): | 1.00th=[ 57], 5.00th=[ 72], 10.00th=[ 15270], 20.00th=[ 27919], | 30.00th=[ 33424], 40.00th=[ 38536], 50.00th=[ 44827], 60.00th=[ 51119], | 70.00th=[ 57934], 80.00th=[ 72877], 90.00th=[ 88605], 95.00th=[104334], | 99.00th=[160433], 99.50th=[173016], 99.90th=[214959], 99.95th=[214959], | 99.99th=[214959] bw ( KiB/s): min= 63, max= 414, per=27.22%, avg=184.52, stdev=66.11, samples=67 iops : min= 3, max= 25, avg=10.76, stdev= 4.12, samples=67 write: IOPS=11, BW=178KiB/s (182kB/s)(6032KiB/33945msec); 0 zone resets clat (usec): min=1579, max=148438, avg=38176.50, stdev=33595.71 lat (usec): min=1582, max=148441, avg=38181.58, stdev=33593.37 clat percentiles (usec): | 1.00th=[ 1778], 5.00th=[ 3064], 10.00th=[ 4228], 20.00th=[ 7308], | 30.00th=[ 11863], 40.00th=[ 20055], 50.00th=[ 30016], 60.00th=[ 37487], | 70.00th=[ 49546], 80.00th=[ 67634], 90.00th=[ 89654], 95.00th=[109577], | 99.00th=[143655], 99.50th=[145753], 99.90th=[147850], 99.95th=[147850], | 99.99th=[147850] bw ( KiB/s): min= 30, max= 318, per=25.05%, avg=178.64, stdev=62.91, samples=66 iops : min= 1, max= 19, avg=10.39, stdev= 3.93, samples=66 lat (usec) : 100=3.26%, 250=0.65%, 1000=0.13% lat (msec) : 2=0.78%, 4=3.65%, 10=8.85%, 20=8.07%, 50=38.41% lat (msec) : 100=29.82%, 250=6.38% cpu : usr=0.05%, sys=5.19%, ctx=1873, 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=178914: Fri Sep 11 07:12:18 2026 read: IOPS=11, BW=183KiB/s (187kB/s)(6032KiB/32999msec) clat (usec): min=51, max=209848, avg=45978.80, stdev=33610.13 lat (usec): min=52, max=209849, avg=45982.44, stdev=33611.90 clat percentiles (usec): | 1.00th=[ 56], 5.00th=[ 64], 10.00th=[ 84], 20.00th=[ 22152], | 30.00th=[ 27657], 40.00th=[ 33817], 50.00th=[ 42730], 60.00th=[ 49021], | 70.00th=[ 56886], 80.00th=[ 69731], 90.00th=[ 85459], 95.00th=[ 99091], | 99.00th=[177210], 99.50th=[185598], 99.90th=[210764], 99.95th=[210764], | 99.99th=[210764] bw ( KiB/s): min= 31, max= 448, per=26.76%, avg=181.42, stdev=85.45, samples=65 iops : min= 1, max= 28, avg=10.55, stdev= 5.46, samples=65 write: IOPS=11, BW=190KiB/s (194kB/s)(6256KiB/32999msec); 0 zone resets clat (usec): min=1518, max=246593, avg=39857.59, stdev=40116.35 lat (usec): min=1519, max=246595, avg=39860.78, stdev=40116.27 clat percentiles (usec): | 1.00th=[ 1811], 5.00th=[ 2802], 10.00th=[ 3916], 20.00th=[ 6718], | 30.00th=[ 11863], 40.00th=[ 20055], 50.00th=[ 27657], 60.00th=[ 36439], | 70.00th=[ 50594], 80.00th=[ 64226], 90.00th=[ 88605], 95.00th=[125305], | 99.00th=[187696], 99.50th=[227541], 99.90th=[246416], 99.95th=[246416], | 99.99th=[246416] bw ( KiB/s): min= 31, max= 413, per=26.55%, avg=189.32, stdev=85.13, samples=65 iops : min= 1, max= 25, avg=11.05, stdev= 5.37, samples=65 lat (usec) : 100=5.21%, 250=0.91%, 500=0.13%, 750=0.26%, 1000=0.13% lat (msec) : 2=0.91%, 4=4.30%, 10=8.59%, 20=8.72%, 50=36.33% lat (msec) : 100=27.86%, 250=6.64% cpu : usr=0.06%, sys=5.12%, ctx=1716, majf=0, minf=18 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=679KiB/s (695kB/s), 166KiB/s-184KiB/s (170kB/s-189kB/s), io=23.4MiB (24.5MB), run=32999-35298msec WRITE: bw=714KiB/s (731kB/s), 178KiB/s-190KiB/s (182kB/s-194kB/s), io=24.6MiB (25.8MB), run=32999-35298msec rand-rw: (groupid=0, jobs=1): err= 0: pid=178907: Fri Sep 11 07:12:29 2026 read: IOPS=8, BW=129KiB/s (132kB/s)(5920KiB/46028msec) clat (msec): min=7, max=304, avg=47.76, stdev=40.25 lat (msec): min=7, max=304, avg=47.77, stdev=40.25 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 14], 10.00th=[ 16], 20.00th=[ 21], | 30.00th=[ 26], 40.00th=[ 30], 50.00th=[ 34], 60.00th=[ 41], | 70.00th=[ 50], 80.00th=[ 66], 90.00th=[ 105], 95.00th=[ 130], | 99.00th=[ 205], 99.50th=[ 230], 99.90th=[ 305], 99.95th=[ 305], | 99.99th=[ 305] bw ( KiB/s): min= 31, max= 477, per=25.53%, avg=130.71, stdev=78.58, samples=89 iops : min= 1, max= 29, avg= 7.38, stdev= 4.93, samples=89 write: IOPS=8, BW=138KiB/s (142kB/s)(6368KiB/46028msec); 0 zone resets clat (msec): min=18, max=321, avg=70.88, stdev=47.02 lat (msec): min=18, max=321, avg=70.88, stdev=47.02 clat percentiles (msec): | 1.00th=[ 22], 5.00th=[ 27], 10.00th=[ 31], 20.00th=[ 35], | 30.00th=[ 41], 40.00th=[ 48], 50.00th=[ 58], 60.00th=[ 68], | 70.00th=[ 81], 80.00th=[ 99], 90.00th=[ 131], 95.00th=[ 165], | 99.00th=[ 247], 99.50th=[ 279], 99.90th=[ 321], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 29, max= 318, per=25.59%, avg=137.67, stdev=73.70, samples=91 iops : min= 1, max= 19, avg= 7.81, stdev= 4.69, samples=91 lat (msec) : 10=0.52%, 20=8.98%, 50=46.35%, 100=29.17%, 250=14.45% lat (msec) : 500=0.52% cpu : usr=0.05%, sys=1.63%, ctx=1131, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178909: Fri Sep 11 07:12:29 2026 read: IOPS=7, BW=124KiB/s (127kB/s)(5744KiB/46378msec) clat (msec): min=7, max=223, avg=49.66, stdev=40.01 lat (msec): min=7, max=223, avg=49.66, stdev=40.01 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 13], 10.00th=[ 18], 20.00th=[ 21], | 30.00th=[ 26], 40.00th=[ 30], 50.00th=[ 35], 60.00th=[ 43], | 70.00th=[ 55], 80.00th=[ 73], 90.00th=[ 108], 95.00th=[ 138], | 99.00th=[ 192], 99.50th=[ 213], 99.90th=[ 224], 99.95th=[ 224], | 99.99th=[ 224] bw ( KiB/s): min= 31, max= 381, per=25.28%, avg=129.44, stdev=76.02, samples=86 iops : min= 1, max= 23, avg= 7.29, stdev= 4.79, samples=86 write: IOPS=8, BW=141KiB/s (144kB/s)(6544KiB/46378msec); 0 zone resets clat (msec): min=14, max=295, avg=69.10, stdev=45.78 lat (msec): min=14, max=295, avg=69.10, stdev=45.78 clat percentiles (msec): | 1.00th=[ 21], 5.00th=[ 24], 10.00th=[ 28], 20.00th=[ 34], | 30.00th=[ 41], 40.00th=[ 50], 50.00th=[ 57], 60.00th=[ 66], | 70.00th=[ 79], 80.00th=[ 99], 90.00th=[ 130], 95.00th=[ 150], | 99.00th=[ 230], 99.50th=[ 288], 99.90th=[ 296], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 31, max= 349, per=26.31%, avg=141.53, stdev=75.10, samples=89 iops : min= 1, max= 21, avg= 8.06, stdev= 4.74, samples=89 lat (msec) : 10=0.65%, 20=7.94%, 50=44.92%, 100=31.25%, 250=14.84% lat (msec) : 500=0.39% cpu : usr=0.05%, sys=1.59%, ctx=1093, 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=178911: Fri Sep 11 07:12:29 2026 read: IOPS=8, BW=134KiB/s (137kB/s)(6256KiB/46761msec) clat (msec): min=6, max=298, avg=48.60, stdev=42.64 lat (msec): min=6, max=298, avg=48.61, stdev=42.64 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 15], 20.00th=[ 20], | 30.00th=[ 25], 40.00th=[ 29], 50.00th=[ 34], 60.00th=[ 42], | 70.00th=[ 52], 80.00th=[ 68], 90.00th=[ 103], 95.00th=[ 138], | 99.00th=[ 226], 99.50th=[ 245], 99.90th=[ 300], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 31, max= 411, per=26.93%, avg=137.88, stdev=86.19, samples=89 iops : min= 1, max= 25, avg= 7.82, stdev= 5.42, samples=89 write: IOPS=8, BW=129KiB/s (132kB/s)(6032KiB/46761msec); 0 zone resets clat (msec): min=15, max=294, avg=72.70, stdev=46.76 lat (msec): min=15, max=294, avg=72.70, stdev=46.77 clat percentiles (msec): | 1.00th=[ 21], 5.00th=[ 25], 10.00th=[ 28], 20.00th=[ 38], | 30.00th=[ 43], 40.00th=[ 50], 50.00th=[ 57], 60.00th=[ 68], | 70.00th=[ 84], 80.00th=[ 107], 90.00th=[ 138], 95.00th=[ 169], | 99.00th=[ 243], 99.50th=[ 271], 99.90th=[ 296], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 29, max= 377, per=23.52%, avg=126.54, stdev=73.34, samples=92 iops : min= 1, max= 23, avg= 7.11, stdev= 4.63, samples=92 lat (msec) : 10=1.43%, 20=9.90%, 50=43.75%, 100=27.99%, 250=16.41% lat (msec) : 500=0.52% cpu : usr=0.05%, sys=1.60%, ctx=1147, 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=178913: Fri Sep 11 07:12:29 2026 read: IOPS=8, BW=131KiB/s (134kB/s)(6032KiB/46118msec) clat (msec): min=6, max=290, avg=48.76, stdev=39.41 lat (msec): min=6, max=290, avg=48.76, stdev=39.41 clat percentiles (msec): | 1.00th=[ 12], 5.00th=[ 13], 10.00th=[ 16], 20.00th=[ 22], | 30.00th=[ 27], 40.00th=[ 31], 50.00th=[ 35], 60.00th=[ 43], | 70.00th=[ 52], 80.00th=[ 70], 90.00th=[ 109], 95.00th=[ 131], | 99.00th=[ 184], 99.50th=[ 226], 99.90th=[ 292], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 31, max= 288, per=26.19%, avg=134.08, stdev=73.66, samples=88 iops : min= 1, max= 18, avg= 7.59, stdev= 4.65, samples=88 write: IOPS=8, BW=136KiB/s (139kB/s)(6256KiB/46118msec); 0 zone resets clat (msec): min=17, max=319, avg=70.14, stdev=46.05 lat (msec): min=17, max=319, avg=70.16, stdev=46.06 clat percentiles (msec): | 1.00th=[ 20], 5.00th=[ 24], 10.00th=[ 28], 20.00th=[ 35], | 30.00th=[ 42], 40.00th=[ 49], 50.00th=[ 56], 60.00th=[ 65], | 70.00th=[ 82], 80.00th=[ 104], 90.00th=[ 129], 95.00th=[ 146], | 99.00th=[ 249], 99.50th=[ 296], 99.90th=[ 321], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 31, max= 445, per=25.12%, avg=135.15, stdev=79.20, samples=91 iops : min= 1, max= 27, avg= 7.66, stdev= 5.01, samples=91 lat (msec) : 10=0.13%, 20=9.77%, 50=46.09%, 100=27.47%, 250=16.02% lat (msec) : 500=0.52% cpu : usr=0.03%, sys=1.64%, ctx=1168, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=512KiB/s (525kB/s), 124KiB/s-134KiB/s (127kB/s-137kB/s), io=23.4MiB (24.5MB), run=46028-46761msec WRITE: bw=539KiB/s (552kB/s), 129KiB/s-141KiB/s (132kB/s-144kB/s), io=24.6MiB (25.8MB), run=46028-46761msec 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=178932: Fri Sep 11 07:12:46 2026 read: IOPS=2, BW=2126KiB/s (2177kB/s)(7168KiB/3371msec) clat (msec): min=68, max=334, avg=220.64, stdev=89.77 lat (msec): min=68, max=334, avg=220.64, stdev=89.77 clat percentiles (msec): | 1.00th=[ 69], 5.00th=[ 69], 10.00th=[ 69], 20.00th=[ 161], | 30.00th=[ 178], 40.00th=[ 178], 50.00th=[ 268], 60.00th=[ 268], | 70.00th=[ 268], 80.00th=[ 271], 90.00th=[ 334], 95.00th=[ 334], | 99.00th=[ 334], 99.50th=[ 334], 99.90th=[ 334], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 1950, max= 4039, per=61.40%, avg=2719.00, stdev=968.30, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 write: IOPS=1, BW=1519KiB/s (1555kB/s)(5120KiB/3371msec); 0 zone resets clat (msec): min=182, max=503, avg=320.13, stdev=120.94 lat (msec): min=182, max=503, avg=320.21, stdev=120.94 clat percentiles (msec): | 1.00th=[ 182], 5.00th=[ 182], 10.00th=[ 182], 20.00th=[ 182], | 30.00th=[ 264], 40.00th=[ 264], 50.00th=[ 292], 60.00th=[ 292], | 70.00th=[ 363], 80.00th=[ 363], 90.00th=[ 506], 95.00th=[ 506], | 99.00th=[ 506], 99.50th=[ 506], 99.90th=[ 506], 99.95th=[ 506], | 99.99th=[ 506] bw ( KiB/s): min= 1957, max= 4000, per=43.00%, avg=2665.33, stdev=1156.58, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 100=8.33%, 250=25.00%, 500=58.33%, 750=8.33% cpu : usr=0.00%, sys=19.26%, ctx=284, 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=178933: Fri Sep 11 07:12:46 2026 read: IOPS=0, BW=446KiB/s (456kB/s)(2048KiB/4597msec) clat (msec): min=140, max=375, avg=257.63, stdev=166.23 lat (msec): min=140, max=375, avg=257.63, stdev=166.23 clat percentiles (msec): | 1.00th=[ 140], 5.00th=[ 140], 10.00th=[ 140], 20.00th=[ 140], | 30.00th=[ 140], 40.00th=[ 140], 50.00th=[ 140], 60.00th=[ 376], | 70.00th=[ 376], 80.00th=[ 376], 90.00th=[ 376], 95.00th=[ 376], | 99.00th=[ 376], 99.50th=[ 376], 99.90th=[ 376], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 1367, max= 1950, per=37.45%, avg=1658.50, stdev=412.24, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2228KiB/s (2281kB/s)(10.0MiB/4597msec); 0 zone resets clat (msec): min=209, max=652, avg=402.28, stdev=166.77 lat (msec): min=209, max=653, avg=402.71, stdev=166.63 clat percentiles (msec): | 1.00th=[ 209], 5.00th=[ 209], 10.00th=[ 209], 20.00th=[ 257], | 30.00th=[ 264], 40.00th=[ 268], 50.00th=[ 271], 60.00th=[ 464], | 70.00th=[ 477], 80.00th=[ 584], 90.00th=[ 584], 95.00th=[ 651], | 99.00th=[ 651], 99.50th=[ 651], 99.90th=[ 651], 99.95th=[ 651], | 99.99th=[ 651] bw ( KiB/s): min= 1367, max= 3820, per=34.66%, avg=2148.88, stdev=711.49, samples=8 iops : min= 1, max= 3, avg= 1.25, stdev= 0.71, samples=8 lat (msec) : 250=16.67%, 500=58.33%, 750=25.00% cpu : usr=0.00%, sys=16.08%, ctx=194, 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=178934: Fri Sep 11 07:12:46 2026 read: IOPS=1, BW=1328KiB/s (1360kB/s)(6144KiB/4625msec) clat (usec): min=468, max=398180, avg=220839.77, stdev=174028.04 lat (usec): min=469, max=398182, avg=220841.13, stdev=174028.09 clat percentiles (usec): | 1.00th=[ 469], 5.00th=[ 469], 10.00th=[ 469], 20.00th=[ 3064], | 30.00th=[ 3064], 40.00th=[278922], 50.00th=[278922], 60.00th=[320865], | 70.00th=[325059], 80.00th=[325059], 90.00th=[396362], 95.00th=[396362], | 99.00th=[396362], 99.50th=[396362], 99.90th=[396362], 99.95th=[396362], | 99.99th=[396362] bw ( KiB/s): min= 1910, max= 4000, per=55.89%, avg=2474.75, stdev=1018.26, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1328KiB/s (1360kB/s)(6144KiB/4625msec); 0 zone resets clat (msec): min=152, max=1039, avg=496.15, stdev=338.29 lat (msec): min=152, max=1039, avg=496.29, stdev=338.32 clat percentiles (msec): | 1.00th=[ 153], 5.00th=[ 153], 10.00th=[ 153], 20.00th=[ 218], | 30.00th=[ 218], 40.00th=[ 401], 50.00th=[ 401], 60.00th=[ 418], | 70.00th=[ 751], 80.00th=[ 751], 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= 1398, max= 2039, per=30.27%, avg=1876.60, stdev=270.95, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (usec) : 500=8.33% lat (msec) : 4=8.33%, 250=16.67%, 500=50.00%, 1000=8.33%, 2000=8.33% cpu : usr=0.02%, sys=12.31%, ctx=187, 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=178935: Fri Sep 11 07:12:46 2026 read: IOPS=1, BW=1117KiB/s (1144kB/s)(5120KiB/4583msec) clat (usec): min=1862, max=342267, avg=70291.21, stdev=152039.85 lat (usec): min=1863, max=342268, avg=70292.79, stdev=152039.51 clat percentiles (usec): | 1.00th=[ 1860], 5.00th=[ 1860], 10.00th=[ 1860], 20.00th=[ 1860], | 30.00th=[ 2311], 40.00th=[ 2311], 50.00th=[ 2311], 60.00th=[ 2311], | 70.00th=[ 2671], 80.00th=[ 2671], 90.00th=[341836], 95.00th=[341836], | 99.00th=[341836], 99.50th=[341836], 99.90th=[341836], 99.95th=[341836], | 99.99th=[341836] bw ( KiB/s): min= 8159, max= 8159, per=100.00%, avg=8159.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=1, BW=1564KiB/s (1602kB/s)(7168KiB/4583msec); 0 zone resets clat (msec): min=277, max=1382, avg=577.94, stdev=379.64 lat (msec): min=277, max=1382, avg=578.04, stdev=379.64 clat percentiles (msec): | 1.00th=[ 279], 5.00th=[ 279], 10.00th=[ 279], 20.00th=[ 313], | 30.00th=[ 439], 40.00th=[ 439], 50.00th=[ 464], 60.00th=[ 481], | 70.00th=[ 481], 80.00th=[ 693], 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= 1436, max= 3820, per=36.02%, avg=2232.60, stdev=917.11, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (msec) : 2=8.33%, 4=25.00%, 500=50.00%, 750=8.33%, 2000=8.33% cpu : usr=0.00%, sys=11.89%, ctx=178, 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=4428KiB/s (4534kB/s), 446KiB/s-2126KiB/s (456kB/s-2177kB/s), io=20.0MiB (20.0MB), run=3371-4625msec WRITE: bw=6199KiB/s (6348kB/s), 1328KiB/s-2228KiB/s (1360kB/s-2281kB/s), io=28.0MiB (29.4MB), run=3371-4625msec rand-rw: (groupid=0, jobs=1): err= 0: pid=178928: Fri Sep 11 07:12:46 2026 read: IOPS=1, BW=1493KiB/s (1529kB/s)(7168KiB/4800msec) clat (msec): min=100, max=494, avg=247.02, stdev=150.73 lat (msec): min=100, max=494, avg=247.02, stdev=150.73 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 102], 10.00th=[ 102], 20.00th=[ 102], | 30.00th=[ 150], 40.00th=[ 150], 50.00th=[ 209], 60.00th=[ 288], | 70.00th=[ 288], 80.00th=[ 388], 90.00th=[ 493], 95.00th=[ 493], | 99.00th=[ 493], 99.50th=[ 493], 99.90th=[ 493], 99.95th=[ 493], | 99.99th=[ 493] bw ( KiB/s): min= 1378, max= 3984, per=70.74%, avg=2816.25, stdev=1308.19, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 write: IOPS=1, BW=1067KiB/s (1092kB/s)(5120KiB/4800msec); 0 zone resets clat (msec): min=361, max=805, avg=573.01, stdev=168.76 lat (msec): min=361, max=806, avg=573.18, stdev=168.81 clat percentiles (msec): | 1.00th=[ 363], 5.00th=[ 363], 10.00th=[ 363], 20.00th=[ 363], | 30.00th=[ 506], 40.00th=[ 506], 50.00th=[ 531], 60.00th=[ 531], | 70.00th=[ 667], 80.00th=[ 667], 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= 1892, max= 2027, per=35.42%, avg=1973.75, stdev=59.57, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 lat (msec) : 250=33.33%, 500=33.33%, 750=25.00%, 1000=8.33% cpu : usr=0.06%, sys=5.90%, 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=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=178929: Fri Sep 11 07:12:46 2026 read: IOPS=0, BW=407KiB/s (417kB/s)(2048KiB/5035msec) clat (msec): min=185, max=522, avg=354.09, stdev=238.83 lat (msec): min=185, max=522, avg=354.09, stdev=238.83 clat percentiles (msec): | 1.00th=[ 186], 5.00th=[ 186], 10.00th=[ 186], 20.00th=[ 186], | 30.00th=[ 186], 40.00th=[ 186], 50.00th=[ 186], 60.00th=[ 523], | 70.00th=[ 523], 80.00th=[ 523], 90.00th=[ 523], 95.00th=[ 523], | 99.00th=[ 523], 99.50th=[ 523], 99.90th=[ 523], 99.95th=[ 523], | 99.99th=[ 523] bw ( KiB/s): min= 1383, max= 2027, per=42.83%, avg=1705.00, stdev=455.38, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=2034KiB/s (2083kB/s)(10.0MiB/5035msec); 0 zone resets clat (msec): min=121, max=828, avg=416.71, stdev=203.87 lat (msec): min=121, max=828, avg=416.87, stdev=203.84 clat percentiles (msec): | 1.00th=[ 122], 5.00th=[ 122], 10.00th=[ 122], 20.00th=[ 224], | 30.00th=[ 268], 40.00th=[ 284], 50.00th=[ 409], 60.00th=[ 460], | 70.00th=[ 502], 80.00th=[ 506], 90.00th=[ 567], 95.00th=[ 827], | 99.00th=[ 827], 99.50th=[ 827], 99.90th=[ 827], 99.95th=[ 827], | 99.99th=[ 827] bw ( KiB/s): min= 1892, max= 4079, per=45.93%, avg=2559.71, stdev=1027.69, samples=7 iops : min= 1, max= 3, avg= 1.57, stdev= 0.98, samples=7 lat (msec) : 250=25.00%, 500=33.33%, 750=33.33%, 1000=8.33% cpu : usr=0.02%, sys=4.93%, ctx=114, 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=178930: Fri Sep 11 07:12:46 2026 read: IOPS=1, BW=1497KiB/s (1533kB/s)(6144KiB/4103msec) clat (msec): min=138, max=384, avg=271.38, stdev=92.05 lat (msec): min=138, max=384, avg=271.38, stdev=92.05 clat percentiles (msec): | 1.00th=[ 138], 5.00th=[ 138], 10.00th=[ 138], 20.00th=[ 192], | 30.00th=[ 192], 40.00th=[ 271], 50.00th=[ 271], 60.00th=[ 305], | 70.00th=[ 342], 80.00th=[ 342], 90.00th=[ 384], 95.00th=[ 384], | 99.00th=[ 384], 99.50th=[ 384], 99.90th=[ 384], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 1992, max= 3938, per=62.57%, avg=2491.00, stdev=964.77, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1497KiB/s (1533kB/s)(6144KiB/4103msec); 0 zone resets clat (msec): min=139, max=787, avg=407.43, stdev=252.81 lat (msec): min=139, max=787, avg=407.53, stdev=252.80 clat percentiles (msec): | 1.00th=[ 140], 5.00th=[ 140], 10.00th=[ 140], 20.00th=[ 155], | 30.00th=[ 155], 40.00th=[ 313], 50.00th=[ 313], 60.00th=[ 489], | 70.00th=[ 558], 80.00th=[ 558], 90.00th=[ 785], 95.00th=[ 785], | 99.00th=[ 785], 99.50th=[ 785], 99.90th=[ 785], 99.95th=[ 785], | 99.99th=[ 785] bw ( KiB/s): min= 1892, max= 2752, per=38.44%, avg=2142.00, stdev=408.74, samples=4 iops : min= 1, max= 2, avg= 1.25, stdev= 0.50, samples=4 lat (msec) : 250=33.33%, 500=50.00%, 750=8.33%, 1000=8.33% cpu : usr=0.00%, sys=5.10%, ctx=101, 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=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=178931: Fri Sep 11 07:12:46 2026 read: IOPS=0, BW=995KiB/s (1019kB/s)(5120KiB/5144msec) clat (msec): min=54, max=620, avg=314.01, stdev=261.42 lat (msec): min=54, max=620, avg=314.01, stdev=261.42 clat percentiles (msec): | 1.00th=[ 55], 5.00th=[ 55], 10.00th=[ 55], 20.00th=[ 55], | 30.00th=[ 99], 40.00th=[ 99], 50.00th=[ 239], 60.00th=[ 239], | 70.00th=[ 558], 80.00th=[ 558], 90.00th=[ 625], 95.00th=[ 625], | 99.00th=[ 625], 99.50th=[ 625], 99.90th=[ 625], 99.95th=[ 625], | 99.99th=[ 625] bw ( KiB/s): min= 1984, max= 4071, per=63.56%, avg=2530.50, stdev=1027.33, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 write: IOPS=1, BW=1393KiB/s (1427kB/s)(7168KiB/5144msec); 0 zone resets clat (msec): min=227, max=1190, avg=487.14, stdev=322.61 lat (msec): min=227, max=1190, avg=487.25, stdev=322.62 clat percentiles (msec): | 1.00th=[ 228], 5.00th=[ 228], 10.00th=[ 228], 20.00th=[ 292], | 30.00th=[ 359], 40.00th=[ 359], 50.00th=[ 418], 60.00th=[ 430], | 70.00th=[ 430], 80.00th=[ 493], 90.00th=[ 1183], 95.00th=[ 1183], | 99.00th=[ 1183], 99.50th=[ 1183], 99.90th=[ 1183], 99.95th=[ 1183], | 99.99th=[ 1183] bw ( KiB/s): min= 1875, max= 4096, per=42.09%, avg=2345.50, stdev=859.91, samples=6 iops : min= 1, max= 4, avg= 1.67, stdev= 1.21, samples=6 lat (msec) : 100=16.67%, 250=16.67%, 500=41.67%, 750=16.67%, 2000=8.33% cpu : usr=0.02%, sys=4.43%, ctx=94, 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=3981KiB/s (4077kB/s), 407KiB/s-1497KiB/s (417kB/s-1533kB/s), io=20.0MiB (20.0MB), run=4103-5144msec WRITE: bw=5574KiB/s (5708kB/s), 1067KiB/s-2034KiB/s (1092kB/s-2083kB/s), io=28.0MiB (29.4MB), run=4103-5144msec 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=178943: Fri Sep 11 07:13:01 2026 read: IOPS=1, BW=4157KiB/s (4257kB/s)(12.0MiB/2956msec) clat (msec): min=412, max=1774, avg=928.49, stdev=738.55 lat (msec): min=412, max=1774, avg=928.50, stdev=738.55 clat percentiles (msec): | 1.00th=[ 414], 5.00th=[ 414], 10.00th=[ 414], 20.00th=[ 414], | 30.00th=[ 414], 40.00th=[ 600], 50.00th=[ 600], 60.00th=[ 600], | 70.00th=[ 1770], 80.00th=[ 1770], 90.00th=[ 1770], 95.00th=[ 1770], | 99.00th=[ 1770], 99.50th=[ 1770], 99.90th=[ 1770], 99.95th=[ 1770], | 99.99th=[ 1770] bw ( KiB/s): min= 8126, max= 8175, per=100.00%, avg=8150.50, stdev=34.65, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.00%, sys=2.81%, ctx=61, 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=178944: Fri Sep 11 07:13:01 2026 read: IOPS=0, BW=1340KiB/s (1372kB/s)(4096KiB/3057msec) clat (nsec): min=1210.0M, max=1210.0M, avg=1210023211.00, stdev= 0.00 lat (nsec): min=1210.0M, max=1210.0M, avg=1210027768.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1217], 5.00th=[ 1217], 10.00th=[ 1217], 20.00th=[ 1217], | 30.00th=[ 1217], 40.00th=[ 1217], 50.00th=[ 1217], 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= 8159, max= 8159, per=100.00%, avg=8159.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2680KiB/s (2744kB/s)(8192KiB/3057msec); 0 zone resets clat (msec): min=197, max=1365, avg=781.31, stdev=825.92 lat (msec): min=197, max=1365, avg=781.75, stdev=825.81 clat percentiles (msec): | 1.00th=[ 199], 5.00th=[ 199], 10.00th=[ 199], 20.00th=[ 199], | 30.00th=[ 199], 40.00th=[ 199], 50.00th=[ 199], 60.00th=[ 1368], | 70.00th=[ 1368], 80.00th=[ 1368], 90.00th=[ 1368], 95.00th=[ 1368], | 99.00th=[ 1368], 99.50th=[ 1368], 99.90th=[ 1368], 99.95th=[ 1368], | 99.99th=[ 1368] lat (msec) : 250=33.33%, 2000=66.67% cpu : usr=0.00%, sys=4.35%, ctx=60, 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=178945: Fri Sep 11 07:13:01 2026 write: IOPS=1, BW=6505KiB/s (6661kB/s)(12.0MiB/1889msec); 0 zone resets clat (msec): min=244, max=1282, avg=603.14, stdev=588.63 lat (msec): min=244, max=1282, avg=603.61, stdev=588.57 clat percentiles (msec): | 1.00th=[ 245], 5.00th=[ 245], 10.00th=[ 245], 20.00th=[ 245], | 30.00th=[ 245], 40.00th=[ 284], 50.00th=[ 284], 60.00th=[ 284], | 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=13170, max=13170, per=100.00%, avg=13170.00, stdev= 0.00, samples=1 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 500=33.33%, 2000=33.33% cpu : usr=0.00%, sys=6.78%, 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 rand-rw: (groupid=0, jobs=1): err= 0: pid=178946: Fri Sep 11 07:13:01 2026 write: IOPS=1, BW=4957KiB/s (5076kB/s)(12.0MiB/2479msec); 0 zone resets clat (msec): min=585, max=1097, avg=765.02, stdev=288.33 lat (msec): min=587, max=1098, avg=766.22, stdev=287.68 clat percentiles (msec): | 1.00th=[ 584], 5.00th=[ 584], 10.00th=[ 584], 20.00th=[ 584], | 30.00th=[ 584], 40.00th=[ 609], 50.00th=[ 609], 60.00th=[ 609], | 70.00th=[ 1099], 80.00th=[ 1099], 90.00th=[ 1099], 95.00th=[ 1099], | 99.00th=[ 1099], 99.50th=[ 1099], 99.90th=[ 1099], 99.95th=[ 1099], | 99.99th=[ 1099] bw ( KiB/s): min= 8159, max= 8175, per=76.19%, avg=8167.00, stdev=11.31, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=66.67%, 2000=33.33% cpu : usr=0.04%, sys=6.05%, ctx=64, 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=5360KiB/s (5488kB/s), 1340KiB/s-4157KiB/s (1372kB/s-4257kB/s), io=16.0MiB (16.8MB), run=2956-3057msec WRITE: bw=10.5MiB/s (10.0MB/s), 2680KiB/s-6505KiB/s (2744kB/s-6661kB/s), io=32.0MiB (33.6MB), run=1889-3057msec rand-rw: (groupid=0, jobs=1): err= 0: pid=178947: Fri Sep 11 07:13:02 2026 read: IOPS=1, BW=5249KiB/s (5375kB/s)(12.0MiB/2341msec) clat (msec): min=594, max=801, avg=706.26, stdev=104.96 lat (msec): min=594, max=801, avg=706.27, stdev=104.96 clat percentiles (msec): | 1.00th=[ 592], 5.00th=[ 592], 10.00th=[ 592], 20.00th=[ 592], | 30.00th=[ 592], 40.00th=[ 726], 50.00th=[ 726], 60.00th=[ 726], | 70.00th=[ 802], 80.00th=[ 802], 90.00th=[ 802], 95.00th=[ 802], | 99.00th=[ 802], 99.50th=[ 802], 99.90th=[ 802], 99.95th=[ 802], | 99.99th=[ 802] bw ( KiB/s): min= 7953, max= 8175, per=100.00%, avg=8064.00, stdev=156.98, 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=15.38%, ctx=428, 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=178948: Fri Sep 11 07:13:02 2026 read: IOPS=0, BW=1227KiB/s (1256kB/s)(4096KiB/3339msec) clat (nsec): min=811738k, max=811738k, avg=811737745.00, stdev= 0.00 lat (nsec): min=811740k, max=811740k, avg=811740010.00, stdev= 0.00 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=[ 810], | 70.00th=[ 810], 80.00th=[ 810], 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= 7953, max= 7953, per=100.00%, avg=7953.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2453KiB/s (2512kB/s)(8192KiB/3339msec); 0 zone resets clat (msec): min=266, max=1977, avg=1121.87, stdev=1210.10 lat (msec): min=266, max=1977, avg=1122.35, stdev=1210.00 clat percentiles (msec): | 1.00th=[ 266], 5.00th=[ 266], 10.00th=[ 266], 20.00th=[ 266], | 30.00th=[ 266], 40.00th=[ 266], 50.00th=[ 266], 60.00th=[ 1972], | 70.00th=[ 1972], 80.00th=[ 1972], 90.00th=[ 1972], 95.00th=[ 1972], | 99.00th=[ 1972], 99.50th=[ 1972], 99.90th=[ 1972], 99.95th=[ 1972], | 99.99th=[ 1972] bw ( KiB/s): min= 8159, max= 8159, per=83.14%, avg=8159.00, 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=6.20%, ctx=116, 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=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=178949: Fri Sep 11 07:13:02 2026 write: IOPS=0, BW=3710KiB/s (3799kB/s)(12.0MiB/3312msec); 0 zone resets clat (msec): min=519, max=1704, avg=999.61, stdev=623.46 lat (msec): min=522, max=1704, avg=1001.01, stdev=622.34 clat percentiles (msec): | 1.00th=[ 518], 5.00th=[ 518], 10.00th=[ 518], 20.00th=[ 518], | 30.00th=[ 518], 40.00th=[ 776], 50.00th=[ 776], 60.00th=[ 776], | 70.00th=[ 1703], 80.00th=[ 1703], 90.00th=[ 1703], 95.00th=[ 1703], | 99.00th=[ 1703], 99.50th=[ 1703], 99.90th=[ 1703], 99.95th=[ 1703], | 99.99th=[ 1703] bw ( KiB/s): min= 8031, max= 8175, per=82.57%, avg=8103.00, stdev=101.82, 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=0.00%, sys=2.39%, ctx=45, 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=178950: Fri Sep 11 07:13:02 2026 write: IOPS=1, BW=5366KiB/s (5495kB/s)(12.0MiB/2290msec); 0 zone resets clat (msec): min=331, max=930, avg=730.10, stdev=345.38 lat (msec): min=331, max=931, avg=731.00, stdev=345.83 clat percentiles (msec): | 1.00th=[ 330], 5.00th=[ 330], 10.00th=[ 330], 20.00th=[ 330], | 30.00th=[ 330], 40.00th=[ 927], 50.00th=[ 927], 60.00th=[ 927], | 70.00th=[ 927], 80.00th=[ 927], 90.00th=[ 927], 95.00th=[ 927], | 99.00th=[ 927], 99.50th=[ 927], 99.90th=[ 927], 99.95th=[ 927], | 99.99th=[ 927] bw ( KiB/s): min= 5626, max= 8175, per=70.32%, avg=6900.50, stdev=1802.42, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 1000=66.67% cpu : usr=0.00%, sys=4.76%, ctx=69, 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=4907KiB/s (5025kB/s), 1227KiB/s-5249KiB/s (1256kB/s-5375kB/s), io=16.0MiB (16.8MB), run=2341-3339msec WRITE: bw=9814KiB/s (10.0MB/s), 2453KiB/s-5366KiB/s (2512kB/s-5495kB/s), io=32.0MiB (33.6MB), run=2290-3339msec