== sanity test 398b: DIO and buffer IO race ============== 15:52:33 (1780343553) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 4.09068 s, 12.3 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=181430: Mon Jun 1 15:54:09 2026 read: IOPS=17, BW=71.7KiB/s (73.4kB/s)(5992KiB/83591msec) clat (usec): min=33, max=486599, avg=30275.58, stdev=22415.12 lat (usec): min=34, max=486600, avg=30278.51, stdev=22415.85 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 9241], 10.00th=[ 11994], 20.00th=[ 15664], | 30.00th=[ 18744], 40.00th=[ 22414], 50.00th=[ 26346], 60.00th=[ 30278], | 70.00th=[ 35390], 80.00th=[ 41681], 90.00th=[ 52691], 95.00th=[ 64750], | 99.00th=[105382], 99.50th=[113771], 99.90th=[162530], 99.95th=[488637], | 99.99th=[488637] bw ( KiB/s): min= 15, max= 152, per=24.77%, avg=71.09, stdev=24.23, samples=165 iops : min= 3, max= 38, avg=17.16, stdev= 6.11, samples=165 write: IOPS=18, BW=75.3KiB/s (77.1kB/s)(6296KiB/83591msec); 0 zone resets clat (usec): min=892, max=163621, avg=24204.92, stdev=22740.64 lat (usec): min=893, max=163622, avg=24210.25, stdev=22746.03 clat percentiles (usec): | 1.00th=[ 1156], 5.00th=[ 1434], 10.00th=[ 1975], 20.00th=[ 3818], | 30.00th=[ 7963], 40.00th=[ 13566], 50.00th=[ 18482], 60.00th=[ 24249], | 70.00th=[ 31327], 80.00th=[ 41157], 90.00th=[ 53216], 95.00th=[ 67634], | 99.00th=[108528], 99.50th=[115868], 99.90th=[147850], 99.95th=[164627], | 99.99th=[164627] bw ( KiB/s): min= 11, max= 166, per=24.96%, avg=74.87, stdev=27.27, samples=165 iops : min= 2, max= 41, avg=18.12, stdev= 6.85, samples=165 lat (usec) : 50=0.29%, 100=1.17%, 250=0.23%, 750=0.03%, 1000=0.13% lat (msec) : 2=5.24%, 4=5.37%, 10=7.71%, 20=23.63%, 50=44.27% lat (msec) : 100=10.81%, 250=1.07%, 500=0.03% cpu : usr=0.11%, sys=8.91%, ctx=7300, 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=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=181431: Mon Jun 1 15:54:09 2026 read: IOPS=18, BW=73.2KiB/s (74.0kB/s)(5940KiB/81125msec) clat (usec): min=34, max=453435, avg=29591.33, stdev=21246.11 lat (usec): min=34, max=453437, avg=29596.87, stdev=21245.93 clat percentiles (usec): | 1.00th=[ 55], 5.00th=[ 9372], 10.00th=[ 12125], 20.00th=[ 15795], | 30.00th=[ 18482], 40.00th=[ 21890], 50.00th=[ 26084], 60.00th=[ 30016], | 70.00th=[ 35390], 80.00th=[ 41157], 90.00th=[ 50070], 95.00th=[ 60031], | 99.00th=[ 96994], 99.50th=[107480], 99.90th=[177210], 99.95th=[455082], | 99.99th=[455082] bw ( KiB/s): min= 5, max= 136, per=25.35%, avg=72.76, stdev=22.86, samples=160 iops : min= 1, max= 34, avg=17.58, stdev= 5.73, samples=160 write: IOPS=19, BW=78.2KiB/s (80.1kB/s)(6348KiB/81125msec); 0 zone resets clat (usec): min=928, max=223629, avg=23345.42, stdev=23220.84 lat (usec): min=928, max=223630, avg=23349.33, stdev=23219.45 clat percentiles (usec): | 1.00th=[ 1156], 5.00th=[ 1467], 10.00th=[ 1958], 20.00th=[ 3359], | 30.00th=[ 6063], 40.00th=[ 11731], 50.00th=[ 17171], 60.00th=[ 22414], | 70.00th=[ 30016], 80.00th=[ 40633], 90.00th=[ 53740], 95.00th=[ 68682], | 99.00th=[ 96994], 99.50th=[119014], 99.90th=[160433], 99.95th=[223347], | 99.99th=[223347] bw ( KiB/s): min= 22, max= 190, per=25.86%, avg=77.57, stdev=31.23, samples=160 iops : min= 5, max= 47, avg=18.79, stdev= 7.85, samples=160 lat (usec) : 50=0.33%, 100=1.17%, 250=0.23%, 1000=0.07% lat (msec) : 2=5.18%, 4=6.74%, 10=8.66%, 20=22.95%, 50=43.39% lat (msec) : 100=10.48%, 250=0.78%, 500=0.03% cpu : usr=0.13%, sys=8.90%, ctx=7117, 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=181432: Mon Jun 1 15:54:09 2026 read: IOPS=18, BW=72.6KiB/s (74.3kB/s)(6028KiB/83049msec) clat (usec): min=39, max=190432, avg=30579.03, stdev=20506.71 lat (usec): min=40, max=190434, avg=30581.58, stdev=20506.40 clat percentiles (usec): | 1.00th=[ 56], 5.00th=[ 9503], 10.00th=[ 11863], 20.00th=[ 15401], | 30.00th=[ 18744], 40.00th=[ 22676], 50.00th=[ 26608], 60.00th=[ 31065], | 70.00th=[ 35914], 80.00th=[ 41681], 90.00th=[ 52691], 95.00th=[ 67634], | 99.00th=[108528], 99.50th=[131597], 99.90th=[177210], 99.95th=[189793], | 99.99th=[189793] bw ( KiB/s): min= 11, max= 144, per=25.12%, avg=72.10, stdev=24.63, samples=164 iops : min= 2, max= 36, avg=17.43, stdev= 6.23, samples=164 write: IOPS=18, BW=75.4KiB/s (77.2kB/s)(6260KiB/83049msec); 0 zone resets clat (usec): min=875, max=486188, avg=23534.61, stdev=25822.80 lat (usec): min=875, max=486191, avg=23536.33, stdev=25822.80 clat percentiles (usec): | 1.00th=[ 1123], 5.00th=[ 1401], 10.00th=[ 1876], 20.00th=[ 3392], | 30.00th=[ 6325], 40.00th=[ 11863], 50.00th=[ 16909], 60.00th=[ 22152], | 70.00th=[ 30016], 80.00th=[ 40633], 90.00th=[ 54789], 95.00th=[ 66847], | 99.00th=[100140], 99.50th=[110625], 99.90th=[256902], 99.95th=[484443], | 99.99th=[484443] bw ( KiB/s): min= 8, max= 159, per=24.89%, avg=74.66, stdev=27.31, samples=164 iops : min= 2, max= 39, avg=18.06, stdev= 6.84, samples=164 lat (usec) : 50=0.29%, 100=0.88%, 250=0.13%, 500=0.13%, 1000=0.29% lat (msec) : 2=5.53%, 4=5.70%, 10=8.37%, 20=23.54%, 50=42.87% lat (msec) : 100=11.10%, 250=1.11%, 500=0.07% cpu : usr=0.10%, sys=8.85%, ctx=7233, 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=181433: Mon Jun 1 15:54:09 2026 read: IOPS=18, BW=73.4KiB/s (75.2kB/s)(6052KiB/82430msec) clat (usec): min=36, max=162509, avg=29742.03, stdev=19331.33 lat (usec): min=37, max=162510, avg=29743.38, stdev=19331.39 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 8717], 10.00th=[ 11731], 20.00th=[ 15270], | 30.00th=[ 18482], 40.00th=[ 21627], 50.00th=[ 25560], 60.00th=[ 29754], | 70.00th=[ 35390], 80.00th=[ 41681], 90.00th=[ 53216], 95.00th=[ 65274], | 99.00th=[ 92799], 99.50th=[119014], 99.90th=[160433], 99.95th=[162530], | 99.99th=[162530] bw ( KiB/s): min= 7, max= 152, per=25.50%, avg=73.17, stdev=27.26, samples=163 iops : min= 1, max= 38, avg=17.69, stdev= 6.86, samples=163 write: IOPS=18, BW=75.7KiB/s (77.5kB/s)(6236KiB/82430msec); 0 zone resets clat (usec): min=863, max=480270, avg=23929.15, stdev=25758.73 lat (usec): min=864, max=480271, avg=23932.00, stdev=25759.00 clat percentiles (usec): | 1.00th=[ 1139], 5.00th=[ 1369], 10.00th=[ 1860], 20.00th=[ 3556], | 30.00th=[ 6128], 40.00th=[ 11731], 50.00th=[ 17957], 60.00th=[ 23725], | 70.00th=[ 31065], 80.00th=[ 41157], 90.00th=[ 54789], 95.00th=[ 66847], | 99.00th=[ 98042], 99.50th=[113771], 99.90th=[202376], 99.95th=[480248], | 99.99th=[480248] bw ( KiB/s): min= 7, max= 143, per=25.07%, avg=75.22, stdev=26.73, samples=163 iops : min= 1, max= 35, avg=18.20, stdev= 6.70, samples=163 lat (usec) : 50=0.33%, 100=1.17%, 250=0.29%, 500=0.10%, 1000=0.26% lat (msec) : 2=5.18%, 4=5.99%, 10=8.63%, 20=22.43%, 50=43.20% lat (msec) : 100=11.49%, 250=0.91%, 500=0.03% cpu : usr=0.10%, sys=8.82%, ctx=7096, 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=287KiB/s (294kB/s), 71.7KiB/s-73.4KiB/s (73.4kB/s-75.2kB/s), io=23.4MiB (24.6MB), run=81125-83591msec WRITE: bw=301KiB/s (308kB/s), 75.3KiB/s-78.2KiB/s (77.1kB/s-80.1kB/s), io=24.6MiB (25.7MB), run=81125-83591msec rand-rw: (groupid=0, jobs=1): err= 0: pid=181425: Mon Jun 1 15:54:39 2026 read: IOPS=13, BW=53.1KiB/s (54.4kB/s)(5992KiB/112778msec) clat (msec): min=4, max=588, avg=30.19, stdev=28.11 lat (msec): min=4, max=588, avg=30.19, stdev=28.11 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 19], 50.00th=[ 22], 60.00th=[ 27], | 70.00th=[ 33], 80.00th=[ 43], 90.00th=[ 64], 95.00th=[ 84], | 99.00th=[ 117], 99.50th=[ 128], 99.90th=[ 205], 99.95th=[ 592], | 99.99th=[ 592] bw ( KiB/s): min= 7, max= 168, per=25.12%, avg=53.00, stdev=29.69, samples=221 iops : min= 1, max= 42, avg=12.62, stdev= 7.46, samples=221 write: IOPS=13, BW=55.8KiB/s (57.2kB/s)(6296KiB/112778msec); 0 zone resets clat (msec): min=8, max=253, avg=42.76, stdev=27.88 lat (msec): min=8, max=253, avg=42.76, stdev=27.88 clat percentiles (msec): | 1.00th=[ 13], 5.00th=[ 16], 10.00th=[ 18], 20.00th=[ 22], | 30.00th=[ 26], 40.00th=[ 31], 50.00th=[ 35], 60.00th=[ 41], | 70.00th=[ 50], 80.00th=[ 60], 90.00th=[ 78], 95.00th=[ 94], | 99.00th=[ 146], 99.50th=[ 176], 99.90th=[ 236], 99.95th=[ 255], | 99.99th=[ 255] bw ( KiB/s): min= 7, max= 159, per=25.12%, avg=55.50, stdev=27.88, samples=222 iops : min= 1, max= 39, avg=13.25, stdev= 7.00, samples=222 lat (msec) : 10=4.69%, 20=25.49%, 50=48.14%, 100=18.59%, 250=3.03% lat (msec) : 500=0.03%, 750=0.03% cpu : usr=0.07%, sys=3.61%, ctx=5160, 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=181426: Mon Jun 1 15:54:39 2026 read: IOPS=13, BW=52.3KiB/s (53.5kB/s)(5940KiB/113640msec) clat (msec): min=4, max=571, avg=29.68, stdev=27.91 lat (msec): min=4, max=571, avg=29.68, stdev=27.91 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 8], 10.00th=[ 10], 20.00th=[ 13], | 30.00th=[ 15], 40.00th=[ 18], 50.00th=[ 21], 60.00th=[ 26], | 70.00th=[ 32], 80.00th=[ 43], 90.00th=[ 64], 95.00th=[ 81], | 99.00th=[ 124], 99.50th=[ 138], 99.90th=[ 203], 99.95th=[ 575], | 99.99th=[ 575] bw ( KiB/s): min= 7, max= 151, per=24.82%, avg=52.38, stdev=31.26, samples=222 iops : min= 1, max= 37, avg=12.47, stdev= 7.84, samples=222 write: IOPS=13, BW=55.9KiB/s (57.2kB/s)(6348KiB/113640msec); 0 zone resets clat (msec): min=8, max=276, avg=43.66, stdev=28.91 lat (msec): min=8, max=276, avg=43.67, stdev=28.91 clat percentiles (msec): | 1.00th=[ 13], 5.00th=[ 16], 10.00th=[ 18], 20.00th=[ 22], | 30.00th=[ 26], 40.00th=[ 30], 50.00th=[ 35], 60.00th=[ 42], | 70.00th=[ 51], 80.00th=[ 62], 90.00th=[ 81], 95.00th=[ 99], | 99.00th=[ 153], 99.50th=[ 169], 99.90th=[ 247], 99.95th=[ 275], | 99.99th=[ 275] bw ( KiB/s): min= 7, max= 160, per=25.05%, avg=55.35, stdev=28.44, samples=224 iops : min= 1, max= 40, avg=13.21, stdev= 7.15, samples=224 lat (msec) : 10=5.89%, 20=24.74%, 50=46.35%, 100=19.69%, 250=3.26% lat (msec) : 500=0.03%, 750=0.03% cpu : usr=0.08%, sys=3.51%, ctx=5227, 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=181427: Mon Jun 1 15:54:39 2026 read: IOPS=13, BW=53.5KiB/s (54.8kB/s)(6028KiB/112601msec) clat (msec): min=4, max=180, avg=29.70, stdev=24.04 lat (msec): min=4, max=180, avg=29.70, stdev=24.04 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 19], 50.00th=[ 22], 60.00th=[ 27], | 70.00th=[ 33], 80.00th=[ 42], 90.00th=[ 60], 95.00th=[ 81], | 99.00th=[ 120], 99.50th=[ 138], 99.90th=[ 171], 99.95th=[ 182], | 99.99th=[ 182] bw ( KiB/s): min= 7, max= 175, per=25.35%, avg=53.48, stdev=29.71, samples=221 iops : min= 1, max= 43, avg=12.75, stdev= 7.46, samples=221 write: IOPS=13, BW=55.6KiB/s (56.9kB/s)(6260KiB/112601msec); 0 zone resets clat (msec): min=9, max=600, avg=43.18, stdev=32.00 lat (msec): min=9, max=600, avg=43.18, stdev=32.00 clat percentiles (msec): | 1.00th=[ 13], 5.00th=[ 16], 10.00th=[ 18], 20.00th=[ 22], | 30.00th=[ 26], 40.00th=[ 29], 50.00th=[ 35], 60.00th=[ 42], | 70.00th=[ 50], 80.00th=[ 61], 90.00th=[ 79], 95.00th=[ 97], | 99.00th=[ 150], 99.50th=[ 184], 99.90th=[ 275], 99.95th=[ 600], | 99.99th=[ 600] bw ( KiB/s): min= 7, max= 176, per=25.02%, avg=55.29, stdev=30.14, samples=222 iops : min= 1, max= 44, avg=13.20, stdev= 7.56, samples=222 lat (msec) : 10=4.85%, 20=25.75%, 50=47.27%, 100=18.62%, 250=3.45% lat (msec) : 500=0.03%, 750=0.03% cpu : usr=0.07%, sys=3.64%, ctx=5267, 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=181428: Mon Jun 1 15:54:39 2026 read: IOPS=13, BW=53.4KiB/s (54.6kB/s)(6052KiB/113416msec) clat (msec): min=4, max=178, avg=29.35, stdev=24.00 lat (msec): min=4, max=178, avg=29.35, stdev=24.00 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=[ 33], 80.00th=[ 43], 90.00th=[ 62], 95.00th=[ 81], | 99.00th=[ 115], 99.50th=[ 138], 99.90th=[ 159], 99.95th=[ 178], | 99.99th=[ 178] bw ( KiB/s): min= 7, max= 160, per=25.38%, avg=53.55, stdev=31.47, samples=222 iops : min= 1, max= 40, avg=12.77, stdev= 7.91, samples=222 write: IOPS=13, BW=54.0KiB/s (56.3kB/s)(6236KiB/113416msec); 0 zone resets clat (msec): min=8, max=596, avg=44.12, stdev=32.15 lat (msec): min=8, max=596, avg=44.13, stdev=32.15 clat percentiles (msec): | 1.00th=[ 12], 5.00th=[ 16], 10.00th=[ 19], 20.00th=[ 22], | 30.00th=[ 26], 40.00th=[ 31], 50.00th=[ 35], 60.00th=[ 42], | 70.00th=[ 50], 80.00th=[ 63], 90.00th=[ 81], 95.00th=[ 99], | 99.00th=[ 150], 99.50th=[ 190], 99.90th=[ 232], 99.95th=[ 600], | 99.99th=[ 600] bw ( KiB/s): min= 7, max= 159, per=24.73%, avg=54.65, stdev=27.44, samples=224 iops : min= 1, max= 39, avg=13.04, stdev= 6.88, samples=224 lat (msec) : 10=4.92%, 20=26.73%, 50=45.90%, 100=19.08%, 250=3.35% lat (msec) : 750=0.03% cpu : usr=0.08%, sys=3.59%, ctx=5279, 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=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=211KiB/s (216kB/s), 52.3KiB/s-53.5KiB/s (53.5kB/s-54.8kB/s), io=23.4MiB (24.6MB), run=112601-113640msec WRITE: bw=221KiB/s (227kB/s), 54.0KiB/s-55.9KiB/s (56.3kB/s-57.2kB/s), io=24.6MiB (25.7MB), run=112601-113640msec 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=181465: Mon Jun 1 15:55:08 2026 read: IOPS=16, BW=267KiB/s (274kB/s)(5920KiB/22135msec) clat (usec): min=45, max=127574, avg=30890.31, stdev=20019.46 lat (usec): min=45, max=127575, avg=30891.74, stdev=20019.51 clat percentiles (usec): | 1.00th=[ 56], 5.00th=[ 73], 10.00th=[ 223], 20.00th=[ 17433], | 30.00th=[ 21103], 40.00th=[ 23462], 50.00th=[ 27657], 60.00th=[ 31851], | 70.00th=[ 35914], 80.00th=[ 44827], 90.00th=[ 56361], 95.00th=[ 66323], | 99.00th=[107480], 99.50th=[113771], 99.90th=[127402], 99.95th=[127402], | 99.99th=[127402] bw ( KiB/s): min= 126, max= 448, per=25.52%, avg=266.72, stdev=79.67, samples=43 iops : min= 7, max= 28, avg=15.98, stdev= 5.04, samples=43 write: IOPS=17, BW=288KiB/s (295kB/s)(6368KiB/22135msec); 0 zone resets clat (usec): min=1478, max=112194, avg=26765.81, stdev=23822.14 lat (usec): min=1479, max=112196, avg=26780.61, stdev=23819.66 clat percentiles (usec): | 1.00th=[ 1811], 5.00th=[ 2343], 10.00th=[ 3458], 20.00th=[ 5407], | 30.00th=[ 8717], 40.00th=[ 13829], 50.00th=[ 20055], 60.00th=[ 27132], | 70.00th=[ 33817], 80.00th=[ 45876], 90.00th=[ 61080], 95.00th=[ 73925], | 99.00th=[101188], 99.50th=[102237], 99.90th=[111674], 99.95th=[111674], | 99.99th=[111674] bw ( KiB/s): min= 95, max= 542, per=26.29%, avg=289.19, stdev=100.70, samples=43 iops : min= 5, max= 33, avg=17.40, stdev= 6.42, samples=43 lat (usec) : 50=0.26%, 100=3.78%, 250=0.78% lat (msec) : 2=1.69%, 4=5.08%, 10=10.68%, 20=16.93%, 50=44.92% lat (msec) : 100=14.84%, 250=1.04% cpu : usr=0.11%, sys=9.79%, ctx=1979, 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=181466: Mon Jun 1 15:55:08 2026 read: IOPS=15, BW=251KiB/s (257kB/s)(5744KiB/22901msec) clat (usec): min=42, max=114099, avg=31214.31, stdev=19778.08 lat (usec): min=42, max=114099, avg=31216.02, stdev=19778.02 clat percentiles (usec): | 1.00th=[ 56], 5.00th=[ 91], 10.00th=[ 11600], 20.00th=[ 16581], | 30.00th=[ 20317], 40.00th=[ 23462], 50.00th=[ 27657], 60.00th=[ 32900], | 70.00th=[ 37487], 80.00th=[ 43254], 90.00th=[ 56361], 95.00th=[ 74974], | 99.00th=[ 90702], 99.50th=[ 95945], 99.90th=[113771], 99.95th=[113771], | 99.99th=[113771] bw ( KiB/s): min= 57, max= 444, per=23.85%, avg=249.27, stdev=103.75, samples=45 iops : min= 3, max= 27, avg=14.87, stdev= 6.51, samples=45 write: IOPS=17, BW=286KiB/s (293kB/s)(6544KiB/22901msec); 0 zone resets clat (usec): min=1334, max=144402, avg=27878.91, stdev=26327.75 lat (usec): min=1335, max=144404, avg=27881.52, stdev=26327.99 clat percentiles (usec): | 1.00th=[ 1663], 5.00th=[ 2008], 10.00th=[ 3163], 20.00th=[ 5800], | 30.00th=[ 10028], 40.00th=[ 15795], 50.00th=[ 20055], 60.00th=[ 27657], | 70.00th=[ 35390], 80.00th=[ 44827], 90.00th=[ 61080], 95.00th=[ 86508], | 99.00th=[119014], 99.50th=[133694], 99.90th=[143655], 99.95th=[143655], | 99.99th=[143655] bw ( KiB/s): min= 63, max= 572, per=25.78%, avg=283.60, stdev=106.54, samples=45 iops : min= 3, max= 35, avg=17.02, stdev= 6.75, samples=45 lat (usec) : 50=0.13%, 100=2.86%, 250=0.39%, 500=0.13% lat (msec) : 2=2.60%, 4=4.95%, 10=8.85%, 20=20.44%, 50=45.18% lat (msec) : 100=12.76%, 250=1.69% cpu : usr=0.10%, sys=9.62%, ctx=1997, 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=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=181467: Mon Jun 1 15:55:08 2026 read: IOPS=17, BW=284KiB/s (291kB/s)(6256KiB/22035msec) clat (usec): min=54, max=120685, avg=31468.54, stdev=19203.98 lat (usec): min=55, max=120687, avg=31471.52, stdev=19205.85 clat percentiles (usec): | 1.00th=[ 59], 5.00th=[ 103], 10.00th=[ 11863], 20.00th=[ 17433], | 30.00th=[ 21365], 40.00th=[ 25035], 50.00th=[ 28181], 60.00th=[ 32375], | 70.00th=[ 38536], 80.00th=[ 43254], 90.00th=[ 55837], 95.00th=[ 67634], | 99.00th=[102237], 99.50th=[116917], 99.90th=[121111], 99.95th=[121111], | 99.99th=[121111] bw ( KiB/s): min= 115, max= 448, per=27.28%, avg=285.12, stdev=80.79, samples=43 iops : min= 7, max= 28, avg=17.14, stdev= 5.17, samples=43 write: IOPS=17, BW=274KiB/s (280kB/s)(6032KiB/22035msec); 0 zone resets clat (usec): min=1359, max=114640, avg=25059.41, stdev=23084.06 lat (usec): min=1361, max=114642, avg=25061.59, stdev=23084.02 clat percentiles (usec): | 1.00th=[ 1729], 5.00th=[ 2376], 10.00th=[ 2999], 20.00th=[ 5407], | 30.00th=[ 8586], 40.00th=[ 13042], 50.00th=[ 18220], 60.00th=[ 23462], | 70.00th=[ 30802], 80.00th=[ 41157], 90.00th=[ 60031], 95.00th=[ 74974], | 99.00th=[ 98042], 99.50th=[107480], 99.90th=[114820], 99.95th=[114820], | 99.99th=[114820] bw ( KiB/s): min= 95, max= 476, per=24.62%, avg=270.86, stdev=94.35, samples=43 iops : min= 5, max= 29, avg=16.26, stdev= 5.94, samples=43 lat (usec) : 100=2.34%, 250=0.91%, 500=0.26% lat (msec) : 2=1.56%, 4=6.12%, 10=9.11%, 20=19.14%, 50=45.83% lat (msec) : 100=13.80%, 250=0.91% cpu : usr=0.11%, sys=9.50%, ctx=1970, 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=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=181468: Mon Jun 1 15:55:08 2026 read: IOPS=17, BW=279KiB/s (285kB/s)(6032KiB/21648msec) clat (usec): min=46, max=159512, avg=31270.95, stdev=20353.07 lat (usec): min=46, max=159514, avg=31273.12, stdev=20353.10 clat percentiles (usec): | 1.00th=[ 55], 5.00th=[ 92], 10.00th=[ 10814], 20.00th=[ 16450], | 30.00th=[ 20579], 40.00th=[ 23725], 50.00th=[ 28705], 60.00th=[ 33424], | 70.00th=[ 38011], 80.00th=[ 43254], 90.00th=[ 53740], 95.00th=[ 68682], | 99.00th=[ 94897], 99.50th=[139461], 99.90th=[160433], 99.95th=[160433], | 99.99th=[160433] bw ( KiB/s): min= 125, max= 413, per=26.61%, avg=278.05, stdev=80.52, samples=42 iops : min= 7, max= 25, avg=16.69, stdev= 5.06, samples=42 write: IOPS=18, BW=289KiB/s (296kB/s)(6256KiB/21648msec); 0 zone resets clat (usec): min=1633, max=120467, avg=24900.42, stdev=21502.30 lat (usec): min=1634, max=120470, avg=24903.11, stdev=21502.13 clat percentiles (usec): | 1.00th=[ 1778], 5.00th=[ 2278], 10.00th=[ 3228], 20.00th=[ 5342], | 30.00th=[ 9896], 40.00th=[ 14877], 50.00th=[ 20055], 60.00th=[ 25035], | 70.00th=[ 32900], 80.00th=[ 40109], 90.00th=[ 54264], 95.00th=[ 65799], | 99.00th=[ 94897], 99.50th=[115868], 99.90th=[120062], 99.95th=[120062], | 99.99th=[120062] bw ( KiB/s): min= 127, max= 606, per=26.25%, avg=288.71, stdev=101.63, samples=42 iops : min= 7, max= 37, avg=17.36, stdev= 6.49, samples=42 lat (usec) : 50=0.39%, 100=2.08%, 250=1.04%, 500=0.26% lat (msec) : 2=1.82%, 4=5.21%, 10=9.11%, 20=19.79%, 50=47.01% lat (msec) : 100=12.63%, 250=0.65% cpu : usr=0.13%, sys=10.18%, ctx=1991, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=1046KiB/s (1071kB/s), 251KiB/s-284KiB/s (257kB/s-291kB/s), io=23.4MiB (24.5MB), run=21648-22901msec WRITE: bw=1100KiB/s (1127kB/s), 274KiB/s-289KiB/s (280kB/s-296kB/s), io=24.6MiB (25.8MB), run=21648-22901msec rand-rw: (groupid=0, jobs=1): err= 0: pid=181469: Mon Jun 1 15:55:16 2026 read: IOPS=12, BW=196KiB/s (201kB/s)(5920KiB/30214msec) clat (msec): min=6, max=151, avg=33.74, stdev=25.35 lat (msec): min=6, max=151, avg=33.75, stdev=25.35 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 19], 40.00th=[ 23], 50.00th=[ 27], 60.00th=[ 31], | 70.00th=[ 35], 80.00th=[ 44], 90.00th=[ 68], 95.00th=[ 89], | 99.00th=[ 133], 99.50th=[ 148], 99.90th=[ 153], 99.95th=[ 153], | 99.99th=[ 153] bw ( KiB/s): min= 31, max= 541, per=24.75%, avg=193.83, stdev=106.71, samples=59 iops : min= 1, max= 33, avg=11.37, stdev= 6.69, samples=59 write: IOPS=13, BW=211KiB/s (216kB/s)(6368KiB/30214msec); 0 zone resets clat (msec): min=10, max=152, avg=44.35, stdev=28.26 lat (msec): min=10, max=152, avg=44.35, stdev=28.26 clat percentiles (msec): | 1.00th=[ 13], 5.00th=[ 17], 10.00th=[ 20], 20.00th=[ 22], | 30.00th=[ 26], 40.00th=[ 30], 50.00th=[ 35], 60.00th=[ 42], | 70.00th=[ 52], 80.00th=[ 65], 90.00th=[ 86], 95.00th=[ 110], | 99.00th=[ 142], 99.50th=[ 150], 99.90th=[ 153], 99.95th=[ 153], | 99.99th=[ 153] bw ( KiB/s): min= 63, max= 479, per=25.58%, avg=210.54, stdev=96.18, samples=59 iops : min= 3, max= 29, avg=12.42, stdev= 6.05, samples=59 lat (msec) : 10=1.69%, 20=22.27%, 50=51.95%, 100=19.53%, 250=4.56% cpu : usr=0.08%, sys=3.97%, ctx=1379, 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=181470: Mon Jun 1 15:55:16 2026 read: IOPS=11, BW=188KiB/s (192kB/s)(5744KiB/30586msec) clat (msec): min=6, max=167, avg=33.93, stdev=25.02 lat (msec): min=6, max=167, avg=33.94, stdev=25.02 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 14], 20.00th=[ 17], | 30.00th=[ 19], 40.00th=[ 23], 50.00th=[ 26], 60.00th=[ 30], | 70.00th=[ 36], 80.00th=[ 49], 90.00th=[ 68], 95.00th=[ 89], | 99.00th=[ 121], 99.50th=[ 157], 99.90th=[ 167], 99.95th=[ 167], | 99.99th=[ 167] bw ( KiB/s): min= 31, max= 478, per=23.83%, avg=186.60, stdev=103.48, samples=60 iops : min= 1, max= 29, avg=10.92, stdev= 6.49, samples=60 write: IOPS=13, BW=214KiB/s (219kB/s)(6544KiB/30586msec); 0 zone resets clat (msec): min=11, max=204, avg=44.62, stdev=27.20 lat (msec): min=11, max=204, avg=44.62, stdev=27.20 clat percentiles (msec): | 1.00th=[ 15], 5.00th=[ 17], 10.00th=[ 20], 20.00th=[ 23], | 30.00th=[ 27], 40.00th=[ 31], 50.00th=[ 37], 60.00th=[ 44], | 70.00th=[ 52], 80.00th=[ 65], 90.00th=[ 82], 95.00th=[ 94], | 99.00th=[ 142], 99.50th=[ 146], 99.90th=[ 205], 99.95th=[ 205], | 99.99th=[ 205] bw ( KiB/s): min= 63, max= 480, per=25.80%, avg=212.37, stdev=99.03, samples=60 iops : min= 3, max= 30, avg=12.53, stdev= 6.21, samples=60 lat (msec) : 10=1.69%, 20=19.53%, 50=53.13%, 100=22.01%, 250=3.65% cpu : usr=0.08%, sys=3.97%, ctx=1366, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=181471: Mon Jun 1 15:55:16 2026 read: IOPS=12, BW=205KiB/s (210kB/s)(6256KiB/30526msec) clat (msec): min=7, max=171, avg=32.88, stdev=24.73 lat (msec): min=7, max=171, avg=32.88, stdev=24.73 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 20], 40.00th=[ 23], 50.00th=[ 27], 60.00th=[ 29], | 70.00th=[ 34], 80.00th=[ 42], 90.00th=[ 63], 95.00th=[ 84], | 99.00th=[ 138], 99.50th=[ 169], 99.90th=[ 174], 99.95th=[ 174], | 99.99th=[ 174] bw ( KiB/s): min= 56, max= 573, per=26.28%, avg=205.73, stdev=115.10, samples=60 iops : min= 3, max= 35, avg=12.12, stdev= 7.23, samples=60 write: IOPS=12, BW=198KiB/s (202kB/s)(6032KiB/30526msec); 0 zone resets clat (msec): min=11, max=222, avg=46.22, stdev=30.14 lat (msec): min=11, max=222, avg=46.23, stdev=30.14 clat percentiles (msec): | 1.00th=[ 14], 5.00th=[ 18], 10.00th=[ 20], 20.00th=[ 24], | 30.00th=[ 27], 40.00th=[ 32], 50.00th=[ 37], 60.00th=[ 44], | 70.00th=[ 51], 80.00th=[ 67], 90.00th=[ 83], 95.00th=[ 111], | 99.00th=[ 148], 99.50th=[ 159], 99.90th=[ 222], 99.95th=[ 222], | 99.99th=[ 222] bw ( KiB/s): min= 32, max= 510, per=23.62%, avg=194.38, stdev=89.04, samples=60 iops : min= 2, max= 31, avg=11.42, stdev= 5.56, samples=60 lat (msec) : 10=1.17%, 20=20.05%, 50=55.73%, 100=17.45%, 250=5.60% cpu : usr=0.09%, sys=3.90%, ctx=1407, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=181472: Mon Jun 1 15:55:16 2026 read: IOPS=12, BW=199KiB/s (204kB/s)(6032KiB/30352msec) clat (msec): min=6, max=137, avg=33.17, stdev=25.64 lat (msec): min=6, max=137, avg=33.17, stdev=25.64 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 21], 50.00th=[ 24], 60.00th=[ 29], | 70.00th=[ 34], 80.00th=[ 46], 90.00th=[ 70], 95.00th=[ 96], | 99.00th=[ 128], 99.50th=[ 132], 99.90th=[ 138], 99.95th=[ 138], | 99.99th=[ 138] bw ( KiB/s): min= 31, max= 479, per=25.24%, avg=197.63, stdev=98.16, samples=60 iops : min= 1, max= 29, avg=11.62, stdev= 6.16, samples=60 write: IOPS=12, BW=206KiB/s (211kB/s)(6256KiB/30352msec); 0 zone resets clat (msec): min=10, max=162, avg=45.26, stdev=27.89 lat (msec): min=10, max=162, avg=45.27, stdev=27.89 clat percentiles (msec): | 1.00th=[ 13], 5.00th=[ 17], 10.00th=[ 20], 20.00th=[ 23], | 30.00th=[ 28], 40.00th=[ 32], 50.00th=[ 36], 60.00th=[ 43], | 70.00th=[ 53], 80.00th=[ 64], 90.00th=[ 87], 95.00th=[ 107], | 99.00th=[ 142], 99.50th=[ 146], 99.90th=[ 163], 99.95th=[ 163], | 99.99th=[ 163] bw ( KiB/s): min= 63, max= 541, per=25.09%, avg=206.52, stdev=102.07, samples=60 iops : min= 3, max= 33, avg=12.18, stdev= 6.38, samples=60 lat (msec) : 10=1.30%, 20=21.74%, 50=52.99%, 100=18.23%, 250=5.73% cpu : usr=0.08%, sys=3.85%, ctx=1412, 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=783KiB/s (802kB/s), 188KiB/s-205KiB/s (192kB/s-210kB/s), io=23.4MiB (24.5MB), run=30214-30586msec WRITE: bw=824KiB/s (844kB/s), 198KiB/s-214KiB/s (202kB/s-219kB/s), io=24.6MiB (25.8MB), run=30214-30586msec 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=181486: Mon Jun 1 15:55:25 2026 read: IOPS=4, BW=4120KiB/s (4218kB/s)(7168KiB/1740msec) clat (usec): min=573, max=249471, avg=141421.28, stdev=73796.03 lat (usec): min=574, max=249472, avg=141422.59, stdev=73796.20 clat percentiles (usec): | 1.00th=[ 578], 5.00th=[ 578], 10.00th=[ 578], 20.00th=[130548], | 30.00th=[135267], 40.00th=[135267], 50.00th=[145753], 60.00th=[160433], | 70.00th=[160433], 80.00th=[164627], 90.00th=[248513], 95.00th=[248513], | 99.00th=[248513], 99.50th=[248513], 99.90th=[248513], 99.95th=[248513], | 99.99th=[248513] bw ( KiB/s): min= 4047, max= 5408, per=63.23%, avg=4727.50, stdev=962.37, samples=2 iops : min= 3, max= 5, avg= 4.00, stdev= 1.41, samples=2 write: IOPS=2, BW=2943KiB/s (3013kB/s)(5120KiB/1740msec); 0 zone resets clat (msec): min=105, max=198, avg=149.66, stdev=38.76 lat (msec): min=105, max=198, avg=149.74, stdev=38.74 clat percentiles (msec): | 1.00th=[ 106], 5.00th=[ 106], 10.00th=[ 106], 20.00th=[ 106], | 30.00th=[ 115], 40.00th=[ 115], 50.00th=[ 163], 60.00th=[ 163], | 70.00th=[ 167], 80.00th=[ 167], 90.00th=[ 199], 95.00th=[ 199], | 99.00th=[ 199], 99.50th=[ 199], 99.90th=[ 199], 99.95th=[ 199], | 99.99th=[ 199] bw ( KiB/s): min= 2023, max= 6000, per=38.32%, avg=4011.50, stdev=2812.16, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 lat (usec) : 750=8.33% lat (msec) : 250=91.67% cpu : usr=0.00%, sys=28.87%, ctx=246, 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=181487: Mon Jun 1 15:55:25 2026 read: IOPS=0, BW=748KiB/s (766kB/s)(2048KiB/2739msec) clat (msec): min=115, max=168, avg=141.95, stdev=37.82 lat (msec): min=115, max=168, avg=141.96, stdev=37.82 clat percentiles (msec): | 1.00th=[ 115], 5.00th=[ 115], 10.00th=[ 115], 20.00th=[ 115], | 30.00th=[ 115], 40.00th=[ 115], 50.00th=[ 115], 60.00th=[ 169], | 70.00th=[ 169], 80.00th=[ 169], 90.00th=[ 169], 95.00th=[ 169], | 99.00th=[ 169], 99.50th=[ 169], 99.90th=[ 169], 99.95th=[ 169], | 99.99th=[ 169] bw ( KiB/s): min= 1698, max= 2000, per=24.73%, avg=1849.00, stdev=213.55, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=3, BW=3739KiB/s (3828kB/s)(10.0MiB/2739msec); 0 zone resets clat (msec): min=73, max=622, avg=244.90, stdev=152.71 lat (msec): min=73, max=625, avg=245.30, stdev=153.58 clat percentiles (msec): | 1.00th=[ 74], 5.00th=[ 74], 10.00th=[ 74], 20.00th=[ 129], | 30.00th=[ 159], 40.00th=[ 174], 50.00th=[ 186], 60.00th=[ 234], | 70.00th=[ 253], 80.00th=[ 305], 90.00th=[ 317], 95.00th=[ 625], | 99.00th=[ 625], 99.50th=[ 625], 99.90th=[ 625], 99.95th=[ 625], | 99.99th=[ 625] bw ( KiB/s): min= 2000, max= 5094, per=32.98%, avg=3452.60, stdev=1372.67, samples=5 iops : min= 1, max= 4, avg= 2.40, stdev= 1.34, samples=5 lat (msec) : 100=8.33%, 250=58.33%, 500=25.00%, 750=8.33% cpu : usr=0.11%, sys=22.64%, ctx=163, 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=181488: Mon Jun 1 15:55:25 2026 read: IOPS=2, BW=2408KiB/s (2465kB/s)(6144KiB/2552msec) clat (usec): min=723, max=174966, avg=73046.08, stdev=70204.00 lat (usec): min=724, max=174967, avg=73047.38, stdev=70203.95 clat percentiles (usec): | 1.00th=[ 725], 5.00th=[ 725], 10.00th=[ 725], 20.00th=[ 750], | 30.00th=[ 750], 40.00th=[ 57410], 50.00th=[ 57410], 60.00th=[ 71828], | 70.00th=[132645], 80.00th=[132645], 90.00th=[175113], 95.00th=[175113], | 99.00th=[175113], 99.50th=[175113], 99.90th=[175113], 99.95th=[175113], | 99.99th=[175113] bw ( KiB/s): min= 2043, max= 4047, per=44.98%, avg=3363.33, stdev=1143.68, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=2, BW=2408KiB/s (2465kB/s)(6144KiB/2552msec); 0 zone resets clat (msec): min=134, max=590, avg=351.95, stdev=164.24 lat (msec): min=134, max=590, avg=352.00, stdev=164.24 clat percentiles (msec): | 1.00th=[ 136], 5.00th=[ 136], 10.00th=[ 136], 20.00th=[ 262], | 30.00th=[ 262], 40.00th=[ 292], 50.00th=[ 292], 60.00th=[ 351], | 70.00th=[ 489], 80.00th=[ 489], 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= 2000, max= 3379, per=22.56%, avg=2361.25, stdev=678.73, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (usec) : 750=16.67% lat (msec) : 100=16.67%, 250=25.00%, 500=33.33%, 750=8.33% cpu : usr=0.00%, sys=15.88%, ctx=209, 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=181489: Mon Jun 1 15:55:25 2026 read: IOPS=1, BW=1903KiB/s (1949kB/s)(5120KiB/2690msec) clat (usec): min=482, max=181131, avg=37303.60, stdev=80404.71 lat (usec): min=484, max=181132, avg=37304.68, stdev=80404.67 clat percentiles (usec): | 1.00th=[ 482], 5.00th=[ 482], 10.00th=[ 482], 20.00th=[ 482], | 30.00th=[ 1020], 40.00th=[ 1020], 50.00th=[ 1631], 60.00th=[ 1631], | 70.00th=[ 2245], 80.00th=[ 2245], 90.00th=[181404], 95.00th=[181404], | 99.00th=[181404], 99.50th=[181404], 99.90th=[181404], 99.95th=[181404], | 99.99th=[181404] bw ( KiB/s): min= 2043, max= 6119, per=54.58%, avg=4081.00, stdev=2882.17, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=2, BW=2665KiB/s (2729kB/s)(7168KiB/2690msec); 0 zone resets clat (msec): min=90, max=590, avg=357.29, stdev=203.92 lat (msec): min=90, max=590, avg=357.37, stdev=203.92 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 91], 10.00th=[ 91], 20.00th=[ 96], | 30.00th=[ 321], 40.00th=[ 321], 50.00th=[ 363], 60.00th=[ 498], | 70.00th=[ 498], 80.00th=[ 542], 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= 1715, max= 4079, per=22.66%, avg=2372.00, stdev=963.58, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (usec) : 500=8.33% lat (msec) : 2=16.67%, 4=8.33%, 100=16.67%, 250=8.33%, 500=25.00% lat (msec) : 750=16.67% cpu : usr=0.00%, sys=16.44%, ctx=120, 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=7477KiB/s (7657kB/s), 748KiB/s-4120KiB/s (766kB/s-4218kB/s), io=20.0MiB (20.0MB), run=1740-2739msec WRITE: bw=10.2MiB/s (10.7MB/s), 2408KiB/s-3739KiB/s (2465kB/s-3828kB/s), io=28.0MiB (29.4MB), run=1740-2739msec rand-rw: (groupid=0, jobs=1): err= 0: pid=181481: Mon Jun 1 15:55:25 2026 read: IOPS=4, BW=4134KiB/s (4233kB/s)(7168KiB/1734msec) clat (msec): min=67, max=255, avg=116.46, stdev=68.28 lat (msec): min=67, max=255, avg=116.47, stdev=68.28 clat percentiles (msec): | 1.00th=[ 68], 5.00th=[ 68], 10.00th=[ 68], 20.00th=[ 70], | 30.00th=[ 79], 40.00th=[ 79], 50.00th=[ 84], 60.00th=[ 107], | 70.00th=[ 107], 80.00th=[ 155], 90.00th=[ 255], 95.00th=[ 255], | 99.00th=[ 255], 99.50th=[ 255], 99.90th=[ 255], 99.95th=[ 255], | 99.99th=[ 255] bw ( KiB/s): min= 2000, max= 7684, per=58.67%, avg=3895.67, stdev=3280.79, samples=3 iops : min= 1, max= 7, avg= 3.00, stdev= 3.46, samples=3 write: IOPS=2, BW=2953KiB/s (3024kB/s)(5120KiB/1734msec); 0 zone resets clat (msec): min=83, max=339, avg=179.95, stdev=101.64 lat (msec): min=83, max=339, avg=180.05, stdev=101.63 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 84], 10.00th=[ 84], 20.00th=[ 84], | 30.00th=[ 126], 40.00th=[ 126], 50.00th=[ 134], 60.00th=[ 134], | 70.00th=[ 220], 80.00th=[ 220], 90.00th=[ 338], 95.00th=[ 338], | 99.00th=[ 338], 99.50th=[ 338], 99.90th=[ 338], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 1921, max= 6000, per=35.58%, avg=3308.00, stdev=2331.70, samples=3 iops : min= 1, max= 5, avg= 2.33, stdev= 2.31, samples=3 lat (msec) : 100=41.67%, 250=41.67%, 500=16.67% cpu : usr=0.06%, sys=11.02%, ctx=60, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=181482: Mon Jun 1 15:55:25 2026 read: IOPS=0, BW=664KiB/s (680kB/s)(2048KiB/3084msec) clat (usec): min=73390, max=97957, avg=85674.03, stdev=17371.88 lat (usec): min=73408, max=97958, avg=85683.54, stdev=17359.85 clat percentiles (usec): | 1.00th=[72877], 5.00th=[72877], 10.00th=[72877], 20.00th=[72877], | 30.00th=[72877], 40.00th=[72877], 50.00th=[72877], 60.00th=[98042], | 70.00th=[98042], 80.00th=[98042], 90.00th=[98042], 95.00th=[98042], | 99.00th=[98042], 99.50th=[98042], 99.90th=[98042], 99.95th=[98042], | 99.99th=[98042] bw ( KiB/s): min= 1910, max= 2000, per=29.44%, avg=1955.00, stdev=63.64, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=3, BW=3320KiB/s (3400kB/s)(10.0MiB/3084msec); 0 zone resets clat (msec): min=73, max=575, avg=282.38, stdev=167.87 lat (msec): min=73, max=575, avg=282.70, stdev=168.04 clat percentiles (msec): | 1.00th=[ 74], 5.00th=[ 74], 10.00th=[ 74], 20.00th=[ 82], | 30.00th=[ 109], 40.00th=[ 236], 50.00th=[ 268], 60.00th=[ 309], | 70.00th=[ 309], 80.00th=[ 388], 90.00th=[ 481], 95.00th=[ 575], | 99.00th=[ 575], 99.50th=[ 575], 99.90th=[ 575], 99.95th=[ 575], | 99.99th=[ 575] bw ( KiB/s): min= 1992, max= 5731, per=33.91%, avg=3152.20, stdev=1679.57, samples=5 iops : min= 1, max= 5, avg= 2.20, stdev= 1.79, samples=5 lat (msec) : 100=33.33%, 250=16.67%, 500=41.67%, 750=8.33% cpu : usr=0.03%, sys=7.46%, ctx=170, 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=181483: Mon Jun 1 15:55:25 2026 read: IOPS=2, BW=2182KiB/s (2234kB/s)(6144KiB/2816msec) clat (msec): min=115, max=525, avg=219.27, stdev=155.97 lat (msec): min=115, max=525, avg=219.27, stdev=155.97 clat percentiles (msec): | 1.00th=[ 116], 5.00th=[ 116], 10.00th=[ 116], 20.00th=[ 126], | 30.00th=[ 126], 40.00th=[ 133], 50.00th=[ 133], 60.00th=[ 192], | 70.00th=[ 224], 80.00th=[ 224], 90.00th=[ 527], 95.00th=[ 527], | 99.00th=[ 527], 99.50th=[ 527], 99.90th=[ 527], 99.95th=[ 527], | 99.99th=[ 527] bw ( KiB/s): min= 1961, max= 4071, per=37.75%, avg=2506.75, stdev=1042.98, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=2, BW=2182KiB/s (2234kB/s)(6144KiB/2816msec); 0 zone resets clat (msec): min=65, max=525, avg=236.37, stdev=177.18 lat (msec): min=65, max=525, avg=237.05, stdev=177.64 clat percentiles (msec): | 1.00th=[ 66], 5.00th=[ 66], 10.00th=[ 66], 20.00th=[ 80], | 30.00th=[ 80], 40.00th=[ 155], 50.00th=[ 155], 60.00th=[ 247], | 70.00th=[ 351], 80.00th=[ 351], 90.00th=[ 527], 95.00th=[ 527], | 99.00th=[ 527], 99.50th=[ 527], 99.90th=[ 527], 99.95th=[ 527], | 99.99th=[ 527] bw ( KiB/s): min= 1992, max= 5885, per=35.41%, avg=3292.33, stdev=2245.32, samples=3 iops : min= 1, max= 5, avg= 2.33, stdev= 2.31, samples=3 lat (msec) : 100=16.67%, 250=58.33%, 500=8.33%, 750=16.67% cpu : usr=0.04%, sys=5.58%, ctx=60, 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=181484: Mon Jun 1 15:55:25 2026 read: IOPS=1, BW=1953KiB/s (2000kB/s)(5120KiB/2621msec) clat (msec): min=66, max=399, avg=175.52, stdev=132.91 lat (msec): min=66, max=399, avg=175.53, stdev=132.91 clat percentiles (msec): | 1.00th=[ 67], 5.00th=[ 67], 10.00th=[ 67], 20.00th=[ 67], | 30.00th=[ 92], 40.00th=[ 92], 50.00th=[ 138], 60.00th=[ 138], | 70.00th=[ 182], 80.00th=[ 182], 90.00th=[ 401], 95.00th=[ 401], | 99.00th=[ 401], 99.50th=[ 401], 99.90th=[ 401], 99.95th=[ 401], | 99.99th=[ 401] bw ( KiB/s): min= 8000, max= 8000, per=100.00%, avg=8000.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=2, BW=2735KiB/s (2800kB/s)(7168KiB/2621msec); 0 zone resets clat (msec): min=74, max=486, avg=238.64, stdev=150.09 lat (msec): min=74, max=486, avg=238.77, stdev=150.08 clat percentiles (msec): | 1.00th=[ 75], 5.00th=[ 75], 10.00th=[ 75], 20.00th=[ 132], | 30.00th=[ 155], 40.00th=[ 155], 50.00th=[ 157], 60.00th=[ 292], | 70.00th=[ 292], 80.00th=[ 376], 90.00th=[ 485], 95.00th=[ 485], | 99.00th=[ 485], 99.50th=[ 485], 99.90th=[ 485], 99.95th=[ 485], | 99.99th=[ 485] bw ( KiB/s): min= 2003, max= 5785, per=37.13%, avg=3451.75, stdev=1810.47, samples=4 iops : min= 1, max= 5, avg= 2.50, stdev= 1.91, samples=4 lat (msec) : 100=25.00%, 250=41.67%, 500=33.33% cpu : usr=0.00%, sys=7.63%, ctx=62, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=6641KiB/s (6800kB/s), 664KiB/s-4134KiB/s (680kB/s-4233kB/s), io=20.0MiB (20.0MB), run=1734-3084msec WRITE: bw=9297KiB/s (9520kB/s), 2182KiB/s-3320KiB/s (2234kB/s-3400kB/s), io=28.0MiB (29.4MB), run=1734-3084msec 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=181495: Mon Jun 1 15:55:34 2026 read: IOPS=1, BW=5076KiB/s (5197kB/s)(12.0MiB/2421msec) clat (msec): min=507, max=926, avg=761.39, stdev=223.07 lat (msec): min=507, max=926, avg=761.39, stdev=223.07 clat percentiles (msec): | 1.00th=[ 510], 5.00th=[ 510], 10.00th=[ 510], 20.00th=[ 510], | 30.00th=[ 510], 40.00th=[ 852], 50.00th=[ 852], 60.00th=[ 852], | 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= 8175, max= 8192, per=100.00%, avg=8183.50, stdev=12.02, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 750=33.33%, 1000=66.67% cpu : usr=0.00%, sys=5.62%, ctx=58, 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=181496: Mon Jun 1 15:55:34 2026 read: IOPS=0, BW=1663KiB/s (1703kB/s)(4096KiB/2463msec) clat (nsec): min=1032.3M, max=1032.3M, avg=1032331803.00, stdev= 0.00 lat (nsec): min=1032.3M, max=1032.3M, avg=1032334863.00, 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=3326KiB/s (3406kB/s)(8192KiB/2463msec); 0 zone resets clat (msec): min=480, max=621, avg=550.82, stdev=100.12 lat (msec): min=480, max=621, avg=551.32, stdev=99.85 clat percentiles (msec): | 1.00th=[ 481], 5.00th=[ 481], 10.00th=[ 481], 20.00th=[ 481], | 30.00th=[ 481], 40.00th=[ 481], 50.00th=[ 481], 60.00th=[ 625], | 70.00th=[ 625], 80.00th=[ 625], 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= 8175, max= 8175, per=61.45%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.00%, sys=8.41%, ctx=79, 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=181497: Mon Jun 1 15:55:34 2026 write: IOPS=1, BW=5478KiB/s (5610kB/s)(12.0MiB/2243msec); 0 zone resets clat (msec): min=587, max=794, avg=709.21, stdev=107.96 lat (msec): min=588, max=794, avg=709.57, stdev=107.91 clat percentiles (msec): | 1.00th=[ 592], 5.00th=[ 592], 10.00th=[ 592], 20.00th=[ 592], | 30.00th=[ 592], 40.00th=[ 743], 50.00th=[ 743], 60.00th=[ 743], | 70.00th=[ 793], 80.00th=[ 793], 90.00th=[ 793], 95.00th=[ 793], | 99.00th=[ 793], 99.50th=[ 793], 99.90th=[ 793], 99.95th=[ 793], | 99.99th=[ 793] bw ( KiB/s): min= 8192, max= 8192, per=61.58%, avg=8192.00, stdev= 0.00, samples=2 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=2 lat (msec) : 750=66.67%, 1000=33.33% cpu : usr=0.04%, sys=10.70%, ctx=110, 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=181498: Mon Jun 1 15:55:34 2026 write: IOPS=1, BW=7062KiB/s (7232kB/s)(12.0MiB/1740msec); 0 zone resets clat (msec): min=333, max=867, avg=556.03, stdev=278.03 lat (msec): min=334, max=868, avg=560.22, stdev=276.73 clat percentiles (msec): | 1.00th=[ 334], 5.00th=[ 334], 10.00th=[ 334], 20.00th=[ 334], | 30.00th=[ 334], 40.00th=[ 468], 50.00th=[ 468], 60.00th=[ 468], | 70.00th=[ 869], 80.00th=[ 869], 90.00th=[ 869], 95.00th=[ 869], | 99.00th=[ 869], 99.50th=[ 869], 99.90th=[ 869], 99.95th=[ 869], | 99.99th=[ 869] bw ( KiB/s): min= 5587, max= 8192, per=51.79%, avg=6889.50, stdev=1842.01, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 500=66.67%, 1000=33.33% cpu : usr=0.12%, sys=7.99%, ctx=60, 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=6652KiB/s (6812kB/s), 1663KiB/s-5076KiB/s (1703kB/s-5197kB/s), io=16.0MiB (16.8MB), run=2421-2463msec WRITE: bw=12.0MiB/s (13.6MB/s), 3326KiB/s-7062KiB/s (3406kB/s-7232kB/s), io=32.0MiB (33.6MB), run=1740-2463msec rand-rw: (groupid=0, jobs=1): err= 0: pid=181499: Mon Jun 1 15:55:35 2026 read: IOPS=1, BW=7002KiB/s (7170kB/s)(12.0MiB/1755msec) clat (msec): min=483, max=563, avg=513.79, stdev=43.28 lat (msec): min=483, max=563, avg=513.80, stdev=43.28 clat percentiles (msec): | 1.00th=[ 485], 5.00th=[ 485], 10.00th=[ 485], 20.00th=[ 485], | 30.00th=[ 485], 40.00th=[ 493], 50.00th=[ 493], 60.00th=[ 493], | 70.00th=[ 567], 80.00th=[ 567], 90.00th=[ 567], 95.00th=[ 567], | 99.00th=[ 567], 99.50th=[ 567], 99.90th=[ 567], 99.95th=[ 567], | 99.99th=[ 567] bw ( KiB/s): min= 8110, max= 8110, per=100.00%, avg=8110.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=66.67%, 750=33.33% cpu : usr=0.00%, sys=22.35%, ctx=574, 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=181500: Mon Jun 1 15:55:35 2026 read: IOPS=0, BW=1961KiB/s (2008kB/s)(4096KiB/2089msec) clat (nsec): min=370955k, max=370955k, avg=370955227.00, stdev= 0.00 lat (nsec): min=370956k, max=370956k, avg=370956419.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 372], 5.00th=[ 372], 10.00th=[ 372], 20.00th=[ 372], | 30.00th=[ 372], 40.00th=[ 372], 50.00th=[ 372], 60.00th=[ 372], | 70.00th=[ 372], 80.00th=[ 372], 90.00th=[ 372], 95.00th=[ 372], | 99.00th=[ 372], 99.50th=[ 372], 99.90th=[ 372], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 7801, max= 7801, per=99.48%, avg=7801.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3921KiB/s (4016kB/s)(8192KiB/2089msec); 0 zone resets clat (msec): min=650, max=1020, avg=835.45, stdev=261.65 lat (msec): min=650, max=1020, avg=835.80, stdev=261.56 clat percentiles (msec): | 1.00th=[ 651], 5.00th=[ 651], 10.00th=[ 651], 20.00th=[ 651], | 30.00th=[ 651], 40.00th=[ 651], 50.00th=[ 651], 60.00th=[ 1020], | 70.00th=[ 1020], 80.00th=[ 1020], 90.00th=[ 1020], 95.00th=[ 1020], | 99.00th=[ 1020], 99.50th=[ 1020], 99.90th=[ 1020], 99.95th=[ 1020], | 99.99th=[ 1020] bw ( KiB/s): min= 8062, max= 8062, per=57.72%, avg=8062.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.00%, sys=9.15%, ctx=93, 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=181501: Mon Jun 1 15:55:35 2026 write: IOPS=1, BW=5238KiB/s (5364kB/s)(12.0MiB/2346msec); 0 zone resets clat (msec): min=222, max=1291, avg=734.06, stdev=535.81 lat (msec): min=223, max=1292, avg=734.55, stdev=536.11 clat percentiles (msec): | 1.00th=[ 224], 5.00th=[ 224], 10.00th=[ 224], 20.00th=[ 224], | 30.00th=[ 224], 40.00th=[ 693], 50.00th=[ 693], 60.00th=[ 693], | 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= 8078, max= 8078, per=57.84%, avg=8078.00, stdev= 0.00, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 250=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.00%, sys=5.59%, ctx=55, 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=181502: Mon Jun 1 15:55:35 2026 write: IOPS=1, BW=5854KiB/s (5995kB/s)(12.0MiB/2099msec); 0 zone resets clat (msec): min=164, max=1015, avg=616.87, stdev=427.72 lat (msec): min=165, max=1015, avg=617.36, stdev=427.83 clat percentiles (msec): | 1.00th=[ 165], 5.00th=[ 165], 10.00th=[ 165], 20.00th=[ 165], | 30.00th=[ 165], 40.00th=[ 667], 50.00th=[ 667], 60.00th=[ 667], | 70.00th=[ 1020], 80.00th=[ 1020], 90.00th=[ 1020], 95.00th=[ 1020], | 99.00th=[ 1020], 99.50th=[ 1020], 99.90th=[ 1020], 99.95th=[ 1020], | 99.99th=[ 1020] bw ( KiB/s): min= 8110, max= 8175, per=58.30%, avg=8142.50, stdev=45.96, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 250=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.00%, sys=6.34%, ctx=53, 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=7843KiB/s (8031kB/s), 1961KiB/s-7002KiB/s (2008kB/s-7170kB/s), io=16.0MiB (16.8MB), run=1755-2089msec WRITE: bw=13.6MiB/s (14.3MB/s), 3921KiB/s-5854KiB/s (4016kB/s-5995kB/s), io=32.0MiB (33.6MB), run=2089-2346msec