== sanity test 398b: DIO and buffer IO race ============== 18:21:13 (1773613273) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 3.11457 s, 16.2 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=147761: Sun Mar 15 18:23:12 2026 read: IOPS=14, BW=56.6KiB/s (57.9kB/s)(5992KiB/105889msec) clat (usec): min=21, max=528373, avg=35253.11, stdev=35562.11 lat (usec): min=21, max=528375, avg=35261.97, stdev=35556.48 clat percentiles (usec): | 1.00th=[ 40], 5.00th=[ 56], 10.00th=[ 99], 20.00th=[ 14746], | 30.00th=[ 19006], 40.00th=[ 23725], 50.00th=[ 27919], 60.00th=[ 32900], | 70.00th=[ 40633], 80.00th=[ 49021], 90.00th=[ 67634], 95.00th=[ 85459], | 99.00th=[173016], 99.50th=[214959], 99.90th=[442500], 99.95th=[526386], | 99.99th=[526386] bw ( KiB/s): min= 7, max= 136, per=25.88%, avg=56.69, stdev=27.35, samples=207 iops : min= 1, max= 34, avg=13.56, stdev= 6.88, samples=207 write: IOPS=14, BW=59.5KiB/s (60.9kB/s)(6296KiB/105889msec); 0 zone resets clat (usec): min=741, max=340927, avg=33624.53, stdev=38517.85 lat (usec): min=742, max=340929, avg=33626.55, stdev=38518.99 clat percentiles (usec): | 1.00th=[ 1139], 5.00th=[ 1287], 10.00th=[ 1500], 20.00th=[ 3752], | 30.00th=[ 7963], 40.00th=[ 15401], 50.00th=[ 22676], 60.00th=[ 31327], | 70.00th=[ 41157], 80.00th=[ 54264], 90.00th=[ 76022], 95.00th=[107480], | 99.00th=[177210], 99.50th=[214959], 99.90th=[283116], 99.95th=[341836], | 99.99th=[341836] bw ( KiB/s): min= 7, max= 151, per=26.02%, avg=59.85, stdev=28.25, samples=206 iops : min= 1, max= 37, avg=14.35, stdev= 7.09, samples=206 lat (usec) : 50=1.14%, 100=3.78%, 250=0.20%, 500=0.10%, 750=0.03% lat (usec) : 1000=0.23% lat (msec) : 2=6.67%, 4=4.26%, 10=6.61%, 20=17.22%, 50=38.93% lat (msec) : 100=16.05%, 250=4.49%, 500=0.26%, 750=0.03% cpu : usr=0.08%, sys=6.54%, ctx=6543, 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=147762: Sun Mar 15 18:23:12 2026 read: IOPS=13, BW=55.1KiB/s (56.4kB/s)(5940KiB/107764msec) clat (usec): min=26, max=540961, avg=35650.79, stdev=39394.02 lat (usec): min=26, max=541122, avg=35652.50, stdev=39395.24 clat percentiles (usec): | 1.00th=[ 44], 5.00th=[ 57], 10.00th=[ 101], 20.00th=[ 14484], | 30.00th=[ 17957], 40.00th=[ 22676], 50.00th=[ 26870], 60.00th=[ 31851], | 70.00th=[ 40109], 80.00th=[ 50070], 90.00th=[ 67634], 95.00th=[ 88605], | 99.00th=[175113], 99.50th=[252707], 99.90th=[505414], 99.95th=[541066], | 99.99th=[541066] bw ( KiB/s): min= 6, max= 135, per=25.37%, avg=55.56, stdev=28.73, samples=209 iops : min= 1, max= 33, avg=13.27, stdev= 7.22, samples=209 write: IOPS=14, BW=58.9KiB/s (60.3kB/s)(6348KiB/107764msec); 0 zone resets clat (usec): min=935, max=339019, avg=34408.05, stdev=40283.50 lat (usec): min=936, max=339020, avg=34415.41, stdev=40286.58 clat percentiles (usec): | 1.00th=[ 1172], 5.00th=[ 1287], 10.00th=[ 1713], 20.00th=[ 3851], | 30.00th=[ 8029], 40.00th=[ 15401], 50.00th=[ 22414], 60.00th=[ 31065], | 70.00th=[ 41681], 80.00th=[ 55837], 90.00th=[ 80217], 95.00th=[112722], | 99.00th=[198181], 99.50th=[252707], 99.90th=[278922], 99.95th=[337642], | 99.99th=[337642] bw ( KiB/s): min= 6, max= 167, per=25.67%, avg=59.03, stdev=29.71, samples=210 iops : min= 1, max= 41, avg=14.14, stdev= 7.45, samples=210 lat (usec) : 50=1.11%, 100=3.71%, 250=0.29%, 500=0.13%, 750=0.03% lat (usec) : 1000=0.13% lat (msec) : 2=6.05%, 4=4.56%, 10=7.29%, 20=17.25%, 50=37.43% lat (msec) : 100=16.89%, 250=4.59%, 500=0.46%, 750=0.07% cpu : usr=0.07%, sys=6.19%, ctx=6524, 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=147763: Sun Mar 15 18:23:12 2026 read: IOPS=13, BW=55.2KiB/s (56.5kB/s)(6028KiB/109169msec) clat (usec): min=32, max=281966, avg=33643.69, stdev=31116.25 lat (usec): min=32, max=281968, avg=33646.12, stdev=31115.60 clat percentiles (usec): | 1.00th=[ 46], 5.00th=[ 56], 10.00th=[ 94], 20.00th=[ 13829], | 30.00th=[ 18220], 40.00th=[ 21890], 50.00th=[ 26608], 60.00th=[ 32375], | 70.00th=[ 39060], 80.00th=[ 49021], 90.00th=[ 65274], 95.00th=[ 86508], | 99.00th=[168821], 99.50th=[196084], 99.90th=[278922], 99.95th=[283116], | 99.99th=[283116] bw ( KiB/s): min= 7, max= 119, per=25.46%, avg=55.77, stdev=27.89, samples=211 iops : min= 1, max= 29, avg=13.33, stdev= 7.03, samples=211 write: IOPS=14, BW=57.3KiB/s (58.7kB/s)(6260KiB/109169msec); 0 zone resets clat (usec): min=969, max=595028, avg=37274.03, stdev=48942.91 lat (usec): min=970, max=595030, avg=37275.88, stdev=48942.88 clat percentiles (usec): | 1.00th=[ 1188], 5.00th=[ 1319], 10.00th=[ 1598], 20.00th=[ 3818], | 30.00th=[ 8848], 40.00th=[ 17171], 50.00th=[ 25822], 60.00th=[ 33817], | 70.00th=[ 43779], 80.00th=[ 57410], 90.00th=[ 79168], 95.00th=[109577], | 99.00th=[238027], 99.50th=[354419], 99.90th=[501220], 99.95th=[591397], | 99.99th=[591397] bw ( KiB/s): min= 7, max= 135, per=24.92%, avg=57.32, stdev=29.15, samples=213 iops : min= 1, max= 33, avg=13.71, stdev= 7.33, samples=213 lat (usec) : 50=0.85%, 100=4.23%, 250=0.29%, 500=0.10%, 750=0.07% lat (usec) : 1000=0.10% lat (msec) : 2=6.71%, 4=3.87%, 10=6.74%, 20=16.28%, 50=38.90% lat (msec) : 100=17.42%, 250=3.97%, 500=0.42%, 750=0.07% cpu : usr=0.09%, sys=6.65%, ctx=6470, 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=147764: Sun Mar 15 18:23:12 2026 read: IOPS=14, BW=56.2KiB/s (57.5kB/s)(6052KiB/107729msec) clat (usec): min=34, max=612307, avg=34929.52, stdev=39768.19 lat (usec): min=34, max=612309, avg=34931.01, stdev=39768.04 clat percentiles (usec): | 1.00th=[ 43], 5.00th=[ 55], 10.00th=[ 99], 20.00th=[ 14222], | 30.00th=[ 18220], 40.00th=[ 21890], 50.00th=[ 26346], 60.00th=[ 31851], | 70.00th=[ 38536], 80.00th=[ 47973], 90.00th=[ 65799], 95.00th=[ 90702], | 99.00th=[185598], 99.50th=[258999], 99.90th=[522191], 99.95th=[608175], | 99.99th=[608175] bw ( KiB/s): min= 7, max= 127, per=26.26%, avg=57.52, stdev=28.52, samples=206 iops : min= 1, max= 31, avg=13.76, stdev= 7.14, samples=206 write: IOPS=14, BW=57.9KiB/s (59.3kB/s)(6236KiB/107729msec); 0 zone resets clat (usec): min=835, max=465871, avg=35109.47, stdev=42398.23 lat (usec): min=836, max=465876, avg=35112.66, stdev=42399.42 clat percentiles (usec): | 1.00th=[ 1156], 5.00th=[ 1303], 10.00th=[ 1647], 20.00th=[ 4015], | 30.00th=[ 7701], 40.00th=[ 15533], 50.00th=[ 23987], 60.00th=[ 32375], | 70.00th=[ 42206], 80.00th=[ 55313], 90.00th=[ 79168], 95.00th=[107480], | 99.00th=[193987], 99.50th=[240124], 99.90th=[379585], 99.95th=[467665], | 99.99th=[467665] bw ( KiB/s): min= 7, max= 134, per=25.88%, avg=59.52, stdev=27.09, samples=205 iops : min= 1, max= 33, avg=14.27, stdev= 6.81, samples=205 lat (usec) : 50=1.14%, 100=3.84%, 250=0.33%, 500=0.07%, 750=0.03% lat (usec) : 1000=0.29% lat (msec) : 2=5.73%, 4=4.39%, 10=7.65%, 20=16.47%, 50=39.00% lat (msec) : 100=15.76%, 250=4.82%, 500=0.42%, 750=0.07% cpu : usr=0.08%, sys=6.30%, ctx=6597, 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=220KiB/s (225kB/s), 55.1KiB/s-56.6KiB/s (56.4kB/s-57.9kB/s), io=23.4MiB (24.6MB), run=105889-109169msec WRITE: bw=230KiB/s (236kB/s), 57.3KiB/s-59.5KiB/s (58.7kB/s-60.9kB/s), io=24.6MiB (25.7MB), run=105889-109169msec rand-rw: (groupid=0, jobs=1): err= 0: pid=147756: Sun Mar 15 18:25:29 2026 read: IOPS=6, BW=24.6KiB/s (25.1kB/s)(5992KiB/243993msec) clat (msec): min=5, max=667, avg=29.68, stdev=37.37 lat (msec): min=5, max=667, avg=29.68, stdev=37.37 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 15], 40.00th=[ 17], 50.00th=[ 20], 60.00th=[ 23], | 70.00th=[ 28], 80.00th=[ 39], 90.00th=[ 57], 95.00th=[ 82], | 99.00th=[ 178], 99.50th=[ 218], 99.90th=[ 642], 99.95th=[ 667], | 99.99th=[ 667] bw ( KiB/s): min= 7, max= 95, per=28.41%, avg=27.56, stdev=17.56, samples=422 iops : min= 1, max= 23, avg= 6.30, stdev= 4.42, samples=422 write: IOPS=6, BW=25.8KiB/s (26.4kB/s)(6296KiB/243993msec); 0 zone resets clat (msec): min=30, max=904, avg=126.57, stdev=77.42 lat (msec): min=30, max=904, avg=126.57, stdev=77.42 clat percentiles (msec): | 1.00th=[ 45], 5.00th=[ 56], 10.00th=[ 63], 20.00th=[ 77], | 30.00th=[ 88], 40.00th=[ 99], 50.00th=[ 110], 60.00th=[ 123], | 70.00th=[ 138], 80.00th=[ 161], 90.00th=[ 197], 95.00th=[ 247], | 99.00th=[ 481], 99.50th=[ 592], 99.90th=[ 793], 99.95th=[ 902], | 99.99th=[ 902] bw ( KiB/s): min= 7, max= 64, per=25.54%, avg=25.79, stdev=11.48, samples=472 iops : min= 1, max= 16, avg= 5.85, stdev= 2.95, samples=472 lat (msec) : 10=4.82%, 20=20.15%, 50=18.82%, 100=25.07%, 250=28.58% lat (msec) : 500=2.05%, 750=0.42%, 1000=0.10% cpu : usr=0.04%, sys=1.39%, ctx=5153, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=147757: Sun Mar 15 18:25:29 2026 read: IOPS=6, BW=24.1KiB/s (24.7kB/s)(5940KiB/246568msec) clat (msec): min=4, max=646, avg=30.35, stdev=38.02 lat (msec): min=4, max=646, avg=30.35, stdev=38.02 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 12], | 30.00th=[ 15], 40.00th=[ 17], 50.00th=[ 20], 60.00th=[ 24], | 70.00th=[ 28], 80.00th=[ 39], 90.00th=[ 60], 95.00th=[ 86], | 99.00th=[ 186], 99.50th=[ 251], 99.90th=[ 430], 99.95th=[ 651], | 99.99th=[ 651] bw ( KiB/s): min= 7, max= 119, per=28.31%, avg=27.46, stdev=18.01, samples=420 iops : min= 1, max= 29, avg= 6.28, stdev= 4.55, samples=420 write: IOPS=6, BW=25.7KiB/s (26.4kB/s)(6348KiB/246568msec); 0 zone resets clat (msec): min=30, max=1278, avg=126.78, stdev=80.22 lat (msec): min=30, max=1278, avg=126.78, stdev=80.23 clat percentiles (msec): | 1.00th=[ 43], 5.00th=[ 58], 10.00th=[ 67], 20.00th=[ 81], | 30.00th=[ 91], 40.00th=[ 101], 50.00th=[ 111], 60.00th=[ 123], | 70.00th=[ 136], 80.00th=[ 155], 90.00th=[ 186], 95.00th=[ 232], | 99.00th=[ 518], 99.50th=[ 584], 99.90th=[ 776], 99.95th=[ 1284], | 99.99th=[ 1284] bw ( KiB/s): min= 7, max= 63, per=25.80%, avg=26.05, stdev=11.06, samples=472 iops : min= 1, max= 15, avg= 5.91, stdev= 2.82, samples=472 lat (msec) : 10=5.76%, 20=18.68%, 50=18.49%, 100=24.32%, 250=30.34% lat (msec) : 500=1.82%, 750=0.52%, 1000=0.03%, 2000=0.03% cpu : usr=0.04%, sys=1.37%, ctx=5258, 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=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=147758: Sun Mar 15 18:25:29 2026 read: IOPS=6, BW=24.6KiB/s (25.2kB/s)(6028KiB/244571msec) clat (msec): min=5, max=597, avg=31.67, stdev=40.83 lat (msec): min=5, max=597, avg=31.67, stdev=40.83 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 15], 40.00th=[ 17], 50.00th=[ 21], 60.00th=[ 24], | 70.00th=[ 29], 80.00th=[ 41], 90.00th=[ 65], 95.00th=[ 88], | 99.00th=[ 178], 99.50th=[ 296], 99.90th=[ 542], 99.95th=[ 600], | 99.99th=[ 600] bw ( KiB/s): min= 7, max= 103, per=28.08%, avg=27.24, stdev=17.97, samples=429 iops : min= 1, max= 25, avg= 6.21, stdev= 4.53, samples=429 write: IOPS=6, BW=25.6KiB/s (26.2kB/s)(6260KiB/244571msec); 0 zone resets clat (msec): min=34, max=1201, avg=125.59, stdev=78.78 lat (msec): min=34, max=1201, avg=125.59, stdev=78.78 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 61], 10.00th=[ 68], 20.00th=[ 79], | 30.00th=[ 89], 40.00th=[ 100], 50.00th=[ 110], 60.00th=[ 121], | 70.00th=[ 136], 80.00th=[ 155], 90.00th=[ 186], 95.00th=[ 226], | 99.00th=[ 489], 99.50th=[ 651], 99.90th=[ 768], 99.95th=[ 1200], | 99.99th=[ 1200] bw ( KiB/s): min= 7, max= 56, per=25.63%, avg=25.88, stdev=10.93, samples=468 iops : min= 1, max= 14, avg= 5.87, stdev= 2.79, samples=468 lat (msec) : 10=4.95%, 20=19.56%, 50=17.94%, 100=25.42%, 250=29.98% lat (msec) : 500=1.66%, 750=0.36%, 1000=0.10%, 2000=0.03% cpu : usr=0.04%, sys=1.42%, ctx=5125, 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=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=147759: Sun Mar 15 18:25:29 2026 read: IOPS=6, BW=25.0KiB/s (25.6kB/s)(6052KiB/241839msec) clat (msec): min=4, max=510, avg=29.04, stdev=31.82 lat (msec): min=4, max=510, avg=29.05, stdev=31.82 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 13], | 30.00th=[ 15], 40.00th=[ 17], 50.00th=[ 20], 60.00th=[ 23], | 70.00th=[ 28], 80.00th=[ 38], 90.00th=[ 58], 95.00th=[ 81], | 99.00th=[ 171], 99.50th=[ 190], 99.90th=[ 326], 99.95th=[ 510], | 99.99th=[ 510] bw ( KiB/s): min= 7, max= 111, per=29.27%, avg=28.39, stdev=19.15, samples=414 iops : min= 1, max= 27, avg= 6.50, stdev= 4.84, samples=414 write: IOPS=6, BW=25.8KiB/s (26.4kB/s)(6236KiB/241839msec); 0 zone resets clat (msec): min=33, max=1142, avg=126.74, stdev=80.64 lat (msec): min=33, max=1142, avg=126.75, stdev=80.64 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 59], 10.00th=[ 67], 20.00th=[ 80], | 30.00th=[ 90], 40.00th=[ 100], 50.00th=[ 111], 60.00th=[ 123], | 70.00th=[ 134], 80.00th=[ 153], 90.00th=[ 192], 95.00th=[ 241], | 99.00th=[ 472], 99.50th=[ 592], 99.90th=[ 894], 99.95th=[ 1150], | 99.99th=[ 1150] bw ( KiB/s): min= 7, max= 56, per=25.55%, avg=25.80, stdev=10.97, samples=468 iops : min= 1, max= 14, avg= 5.85, stdev= 2.82, samples=468 lat (msec) : 10=5.31%, 20=20.57%, 50=17.71%, 100=24.61%, 250=29.30% lat (msec) : 500=2.02%, 750=0.36%, 1000=0.10%, 2000=0.03% cpu : usr=0.04%, sys=1.38%, ctx=4992, 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=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=97.4KiB/s (99.7kB/s), 24.1KiB/s-25.0KiB/s (24.7kB/s-25.6kB/s), io=23.4MiB (24.6MB), run=241839-246568msec WRITE: bw=102KiB/s (104kB/s), 25.6KiB/s-25.8KiB/s (26.2kB/s-26.4kB/s), io=24.6MiB (25.7MB), run=241839-246568msec 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=147819: Sun Mar 15 18:26:12 2026 read: IOPS=14, BW=232KiB/s (237kB/s)(5920KiB/25543msec) clat (usec): min=32, max=295017, avg=35746.40, stdev=32374.11 lat (usec): min=32, max=295018, avg=35747.52, stdev=32374.16 clat percentiles (usec): | 1.00th=[ 40], 5.00th=[ 53], 10.00th=[ 60], 20.00th=[ 76], | 30.00th=[ 18482], 40.00th=[ 24511], 50.00th=[ 31327], 60.00th=[ 38536], | 70.00th=[ 47449], 80.00th=[ 59507], 90.00th=[ 74974], 95.00th=[ 87557], | 99.00th=[123208], 99.50th=[193987], 99.90th=[295699], 99.95th=[295699], | 99.99th=[295699] bw ( KiB/s): min= 61, max= 508, per=27.52%, avg=230.63, stdev=91.75, samples=49 iops : min= 3, max= 31, avg=13.71, stdev= 5.77, samples=49 write: IOPS=15, BW=249KiB/s (255kB/s)(6368KiB/25543msec); 0 zone resets clat (usec): min=1396, max=358273, avg=30848.23, stdev=35471.06 lat (usec): min=1397, max=358274, avg=30853.23, stdev=35471.00 clat percentiles (usec): | 1.00th=[ 1696], 5.00th=[ 1860], 10.00th=[ 2409], 20.00th=[ 4948], | 30.00th=[ 7898], 40.00th=[ 12125], 50.00th=[ 19530], 60.00th=[ 26608], | 70.00th=[ 38011], 80.00th=[ 53740], 90.00th=[ 73925], 95.00th=[ 95945], | 99.00th=[158335], 99.50th=[164627], 99.90th=[358613], 99.95th=[358613], | 99.99th=[358613] bw ( KiB/s): min= 31, max= 505, per=28.45%, avg=250.61, stdev=91.69, samples=49 iops : min= 1, max= 31, avg=14.98, stdev= 5.82, samples=49 lat (usec) : 50=1.95%, 100=8.46%, 250=0.52% lat (msec) : 2=4.04%, 4=4.43%, 10=10.68%, 20=11.07%, 50=34.77% lat (msec) : 100=20.57%, 250=3.26%, 500=0.26% cpu : usr=0.05%, sys=6.75%, ctx=1388, 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=147820: Sun Mar 15 18:26:12 2026 read: IOPS=12, BW=201KiB/s (206kB/s)(5744KiB/28577msec) clat (usec): min=39, max=321953, avg=42200.23, stdev=39214.78 lat (usec): min=39, max=321955, avg=42201.39, stdev=39214.88 clat percentiles (usec): | 1.00th=[ 41], 5.00th=[ 56], 10.00th=[ 63], 20.00th=[ 14353], | 30.00th=[ 22938], 40.00th=[ 28443], 50.00th=[ 36439], 60.00th=[ 42730], | 70.00th=[ 51643], 80.00th=[ 64750], 90.00th=[ 82314], 95.00th=[102237], | 99.00th=[196084], 99.50th=[263193], 99.90th=[320865], 99.95th=[320865], | 99.99th=[320865] bw ( KiB/s): min= 23, max= 445, per=24.04%, avg=201.45, stdev=91.78, samples=56 iops : min= 1, max= 27, avg=11.88, stdev= 5.75, samples=56 write: IOPS=14, BW=229KiB/s (234kB/s)(6544KiB/28577msec); 0 zone resets clat (usec): min=1209, max=273995, avg=32767.61, stdev=36851.47 lat (usec): min=1211, max=273997, avg=32772.85, stdev=36850.46 clat percentiles (usec): | 1.00th=[ 1582], 5.00th=[ 1827], 10.00th=[ 2147], 20.00th=[ 3851], | 30.00th=[ 8029], 40.00th=[ 14091], 50.00th=[ 20841], 60.00th=[ 29492], | 70.00th=[ 40633], 80.00th=[ 55313], 90.00th=[ 81265], 95.00th=[101188], | 99.00th=[158335], 99.50th=[212861], 99.90th=[274727], 99.95th=[274727], | 99.99th=[274727] bw ( KiB/s): min= 32, max= 544, per=25.97%, avg=228.80, stdev=119.15, samples=56 iops : min= 2, max= 34, avg=13.59, stdev= 7.48, samples=56 lat (usec) : 50=1.56%, 100=5.21%, 250=0.65%, 750=0.13% lat (msec) : 2=4.82%, 4=6.51%, 10=7.42%, 20=11.33%, 50=35.81% lat (msec) : 100=21.22%, 250=4.82%, 500=0.52% cpu : usr=0.08%, sys=6.33%, ctx=1551, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=147821: Sun Mar 15 18:26:12 2026 read: IOPS=14, BW=227KiB/s (232kB/s)(6256KiB/27558msec) clat (usec): min=37, max=223567, avg=36326.77, stdev=30771.38 lat (usec): min=37, max=223569, avg=36327.99, stdev=30771.50 clat percentiles (usec): | 1.00th=[ 41], 5.00th=[ 56], 10.00th=[ 60], 20.00th=[ 84], | 30.00th=[ 21103], 40.00th=[ 27919], 50.00th=[ 33817], 60.00th=[ 40109], | 70.00th=[ 45876], 80.00th=[ 57410], 90.00th=[ 78119], 95.00th=[ 90702], | 99.00th=[128451], 99.50th=[168821], 99.90th=[223347], 99.95th=[223347], | 99.99th=[223347] bw ( KiB/s): min= 32, max= 447, per=27.63%, avg=231.56, stdev=94.86, samples=52 iops : min= 2, max= 27, avg=13.75, stdev= 5.92, samples=52 write: IOPS=13, BW=219KiB/s (224kB/s)(6032KiB/27558msec); 0 zone resets clat (usec): min=1434, max=302496, avg=35283.24, stdev=40759.26 lat (usec): min=1436, max=302498, avg=35294.40, stdev=40761.49 clat percentiles (usec): | 1.00th=[ 1631], 5.00th=[ 1827], 10.00th=[ 2343], 20.00th=[ 5145], | 30.00th=[ 7963], 40.00th=[ 13042], 50.00th=[ 21890], 60.00th=[ 31327], | 70.00th=[ 44827], 80.00th=[ 57410], 90.00th=[ 84411], 95.00th=[125305], | 99.00th=[166724], 99.50th=[254804], 99.90th=[304088], 99.95th=[304088], | 99.99th=[304088] bw ( KiB/s): min= 64, max= 479, per=24.48%, avg=215.66, stdev=100.84, samples=53 iops : min= 4, max= 29, avg=12.77, stdev= 6.26, samples=53 lat (usec) : 50=0.91%, 100=9.51%, 250=0.78%, 750=0.13% lat (msec) : 2=4.17%, 4=3.91%, 10=9.38%, 20=9.64%, 50=36.20% lat (msec) : 100=20.05%, 250=5.08%, 500=0.26% cpu : usr=0.08%, sys=6.18%, ctx=1414, 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=147822: Sun Mar 15 18:26:12 2026 read: IOPS=13, BW=220KiB/s (225kB/s)(6032KiB/27474msec) clat (usec): min=35, max=181724, avg=33964.64, stdev=31425.25 lat (usec): min=35, max=181724, avg=33965.70, stdev=31425.26 clat percentiles (usec): | 1.00th=[ 38], 5.00th=[ 52], 10.00th=[ 59], 20.00th=[ 71], | 30.00th=[ 14353], 40.00th=[ 25035], 50.00th=[ 30802], 60.00th=[ 35914], | 70.00th=[ 44303], 80.00th=[ 57410], 90.00th=[ 71828], 95.00th=[ 87557], | 99.00th=[149947], 99.50th=[160433], 99.90th=[181404], 99.95th=[181404], | 99.99th=[181404] bw ( KiB/s): min= 31, max= 479, per=27.74%, avg=232.42, stdev=94.34, samples=50 iops : min= 1, max= 29, avg=13.82, stdev= 5.96, samples=50 write: IOPS=14, BW=228KiB/s (233kB/s)(6256KiB/27474msec); 0 zone resets clat (usec): min=1320, max=498899, avg=37394.42, stdev=56151.20 lat (usec): min=1322, max=498902, avg=37399.71, stdev=56149.45 clat percentiles (usec): | 1.00th=[ 1434], 5.00th=[ 1926], 10.00th=[ 2671], 20.00th=[ 4817], | 30.00th=[ 7439], 40.00th=[ 11863], 50.00th=[ 19268], 60.00th=[ 27395], | 70.00th=[ 38536], 80.00th=[ 56886], 90.00th=[ 85459], 95.00th=[123208], | 99.00th=[308282], 99.50th=[413139], 99.90th=[497026], 99.95th=[497026], | 99.99th=[497026] bw ( KiB/s): min= 31, max= 476, per=25.87%, avg=227.89, stdev=115.76, samples=53 iops : min= 1, max= 29, avg=13.55, stdev= 7.25, samples=53 lat (usec) : 50=1.95%, 100=9.24%, 250=1.04%, 500=0.26%, 1000=0.13% lat (msec) : 2=3.78%, 4=5.47%, 10=10.68%, 20=10.94%, 50=33.07% lat (msec) : 100=17.71%, 250=5.08%, 500=0.65% cpu : usr=0.09%, sys=5.75%, ctx=1320, 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=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=838KiB/s (858kB/s), 201KiB/s-232KiB/s (206kB/s-237kB/s), io=23.4MiB (24.5MB), run=25543-28577msec WRITE: bw=882KiB/s (903kB/s), 219KiB/s-249KiB/s (224kB/s-255kB/s), io=24.6MiB (25.8MB), run=25543-28577msec rand-rw: (groupid=0, jobs=1): err= 0: pid=147814: Sun Mar 15 18:26:49 2026 read: IOPS=5, BW=92.8KiB/s (95.0kB/s)(5920KiB/63802msec) clat (msec): min=6, max=250, avg=37.86, stdev=38.48 lat (msec): min=6, max=250, avg=37.86, stdev=38.48 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 26], 60.00th=[ 30], | 70.00th=[ 37], 80.00th=[ 51], 90.00th=[ 77], 95.00th=[ 138], | 99.00th=[ 209], 99.50th=[ 213], 99.90th=[ 251], 99.95th=[ 251], | 99.99th=[ 251] bw ( KiB/s): min= 31, max= 346, per=27.28%, avg=100.38, stdev=62.98, samples=116 iops : min= 1, max= 21, avg= 5.52, stdev= 4.07, samples=116 write: IOPS=6, BW=99.8KiB/s (102kB/s)(6368KiB/63802msec); 0 zone resets clat (msec): min=45, max=523, avg=124.93, stdev=62.67 lat (msec): min=45, max=523, avg=124.93, stdev=62.67 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 59], 10.00th=[ 65], 20.00th=[ 79], | 30.00th=[ 87], 40.00th=[ 97], 50.00th=[ 109], 60.00th=[ 121], | 70.00th=[ 142], 80.00th=[ 165], 90.00th=[ 194], 95.00th=[ 245], | 99.00th=[ 368], 99.50th=[ 414], 99.90th=[ 523], 99.95th=[ 523], | 99.99th=[ 523] bw ( KiB/s): min= 28, max= 192, per=26.37%, avg=102.06, stdev=45.67, samples=123 iops : min= 1, max= 12, avg= 5.63, stdev= 2.96, samples=123 lat (msec) : 10=2.73%, 20=16.80%, 50=19.14%, 100=28.52%, 250=30.47% lat (msec) : 500=2.21%, 750=0.13% cpu : usr=0.04%, sys=1.72%, ctx=1365, 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=147815: Sun Mar 15 18:26:49 2026 read: IOPS=5, BW=88.4KiB/s (90.5kB/s)(5744KiB/65005msec) clat (msec): min=6, max=227, avg=37.37, stdev=34.59 lat (msec): min=6, max=227, avg=37.37, stdev=34.59 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 25], 60.00th=[ 31], | 70.00th=[ 41], 80.00th=[ 55], 90.00th=[ 81], 95.00th=[ 105], | 99.00th=[ 190], 99.50th=[ 224], 99.90th=[ 228], 99.95th=[ 228], | 99.99th=[ 228] bw ( KiB/s): min= 28, max= 415, per=26.75%, avg=98.46, stdev=69.61, samples=114 iops : min= 1, max= 25, avg= 5.39, stdev= 4.40, samples=114 write: IOPS=6, BW=101KiB/s (103kB/s)(6544KiB/65005msec); 0 zone resets clat (msec): min=40, max=591, avg=125.78, stdev=66.59 lat (msec): min=40, max=591, avg=125.78, stdev=66.59 clat percentiles (msec): | 1.00th=[ 46], 5.00th=[ 54], 10.00th=[ 62], 20.00th=[ 77], | 30.00th=[ 86], 40.00th=[ 99], 50.00th=[ 111], 60.00th=[ 127], | 70.00th=[ 140], 80.00th=[ 163], 90.00th=[ 209], 95.00th=[ 255], | 99.00th=[ 326], 99.50th=[ 418], 99.90th=[ 592], 99.95th=[ 592], | 99.99th=[ 592] bw ( KiB/s): min= 31, max= 223, per=26.12%, avg=101.10, stdev=46.96, samples=127 iops : min= 1, max= 13, avg= 5.56, stdev= 3.06, samples=127 lat (msec) : 10=2.99%, 20=14.97%, 50=20.57%, 100=28.13%, 250=30.47% lat (msec) : 500=2.73%, 750=0.13% cpu : usr=0.03%, sys=1.53%, ctx=1381, 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=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=147816: Sun Mar 15 18:26:49 2026 read: IOPS=6, BW=101KiB/s (104kB/s)(6256KiB/61688msec) clat (msec): min=6, max=327, avg=35.01, stdev=34.41 lat (msec): min=6, max=327, avg=35.01, stdev=34.41 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 21], 50.00th=[ 24], 60.00th=[ 29], | 70.00th=[ 35], 80.00th=[ 48], 90.00th=[ 72], 95.00th=[ 104], | 99.00th=[ 184], 99.50th=[ 228], 99.90th=[ 326], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 30, max= 479, per=28.97%, avg=106.60, stdev=80.81, samples=116 iops : min= 1, max= 29, avg= 5.91, stdev= 5.14, samples=116 write: IOPS=6, BW=97.8KiB/s (100kB/s)(6032KiB/61688msec); 0 zone resets clat (msec): min=35, max=619, avg=126.94, stdev=69.89 lat (msec): min=35, max=619, avg=126.95, stdev=69.89 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 56], 10.00th=[ 64], 20.00th=[ 73], | 30.00th=[ 86], 40.00th=[ 96], 50.00th=[ 109], 60.00th=[ 123], | 70.00th=[ 142], 80.00th=[ 171], 90.00th=[ 209], 95.00th=[ 259], | 99.00th=[ 368], 99.50th=[ 472], 99.90th=[ 617], 99.95th=[ 617], | 99.99th=[ 617] bw ( KiB/s): min= 28, max= 224, per=25.18%, avg=97.44, stdev=45.76, samples=122 iops : min= 1, max= 14, avg= 5.33, stdev= 2.99, samples=122 lat (msec) : 10=2.86%, 20=16.93%, 50=23.57%, 100=26.43%, 250=27.34% lat (msec) : 500=2.73%, 750=0.13% cpu : usr=0.05%, sys=1.65%, ctx=1467, 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=147817: Sun Mar 15 18:26:49 2026 read: IOPS=5, BW=94.4KiB/s (96.7kB/s)(6032KiB/63868msec) clat (msec): min=6, max=207, avg=36.27, stdev=31.60 lat (msec): min=6, max=207, avg=36.27, stdev=31.60 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 18], 40.00th=[ 22], 50.00th=[ 27], 60.00th=[ 31], | 70.00th=[ 37], 80.00th=[ 50], 90.00th=[ 73], 95.00th=[ 94], | 99.00th=[ 163], 99.50th=[ 201], 99.90th=[ 209], 99.95th=[ 209], | 99.99th=[ 209] bw ( KiB/s): min= 30, max= 414, per=28.63%, avg=105.37, stdev=70.29, samples=112 iops : min= 1, max= 25, avg= 5.84, stdev= 4.45, samples=112 write: IOPS=6, BW=97.0KiB/s (100kB/s)(6256KiB/63868msec); 0 zone resets clat (msec): min=38, max=510, avg=128.00, stdev=62.96 lat (msec): min=38, max=510, avg=128.00, stdev=62.96 clat percentiles (msec): | 1.00th=[ 52], 5.00th=[ 59], 10.00th=[ 69], 20.00th=[ 82], | 30.00th=[ 90], 40.00th=[ 100], 50.00th=[ 109], 60.00th=[ 127], | 70.00th=[ 142], 80.00th=[ 169], 90.00th=[ 211], 95.00th=[ 255], | 99.00th=[ 376], 99.50th=[ 405], 99.90th=[ 510], 99.95th=[ 510], | 99.99th=[ 510] bw ( KiB/s): min= 31, max= 192, per=25.42%, avg=98.38, stdev=44.77, samples=125 iops : min= 1, max= 12, avg= 5.39, stdev= 2.90, samples=125 lat (msec) : 10=1.69%, 20=16.41%, 50=21.48%, 100=28.39%, 250=29.30% lat (msec) : 500=2.60%, 750=0.13% cpu : usr=0.05%, sys=1.61%, ctx=1451, 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=368KiB/s (377kB/s), 88.4KiB/s-101KiB/s (90.5kB/s-104kB/s), io=23.4MiB (24.5MB), run=61688-65005msec WRITE: bw=388KiB/s (397kB/s), 97.8KiB/s-101KiB/s (100kB/s-103kB/s), io=24.6MiB (25.8MB), run=61688-65005msec 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=147842: Sun Mar 15 18:27:06 2026 read: IOPS=2, BW=2234KiB/s (2288kB/s)(7168KiB/3208msec) clat (usec): min=549, max=668087, avg=229924.02, stdev=219863.66 lat (usec): min=551, max=668088, avg=229925.44, stdev=219863.73 clat percentiles (usec): | 1.00th=[ 553], 5.00th=[ 553], 10.00th=[ 553], 20.00th=[ 26870], | 30.00th=[173016], 40.00th=[173016], 50.00th=[235930], 60.00th=[248513], | 70.00th=[248513], 80.00th=[256902], 90.00th=[666895], 95.00th=[666895], | 99.00th=[666895], 99.50th=[666895], 99.90th=[666895], 99.95th=[666895], | 99.99th=[666895] bw ( KiB/s): min= 1815, max= 4225, per=51.34%, avg=2489.25, stdev=1159.82, samples=4 iops : min= 1, max= 4, avg= 1.75, stdev= 1.50, samples=4 write: IOPS=1, BW=1596KiB/s (1634kB/s)(5120KiB/3208msec); 0 zone resets clat (msec): min=118, max=561, avg=314.44, stdev=178.80 lat (msec): min=118, max=561, avg=314.51, stdev=178.79 clat percentiles (msec): | 1.00th=[ 120], 5.00th=[ 120], 10.00th=[ 120], 20.00th=[ 120], | 30.00th=[ 180], 40.00th=[ 180], 50.00th=[ 300], 60.00th=[ 300], | 70.00th=[ 414], 80.00th=[ 414], 90.00th=[ 558], 95.00th=[ 558], | 99.00th=[ 558], 99.50th=[ 558], 99.90th=[ 558], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 1910, max= 4015, per=38.98%, avg=2646.67, stdev=1186.17, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (usec) : 750=8.33% lat (msec) : 50=8.33%, 250=41.67%, 500=25.00%, 750=16.67% cpu : usr=0.00%, sys=12.29%, ctx=202, 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=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=147843: Sun Mar 15 18:27:06 2026 read: IOPS=0, BW=485KiB/s (497kB/s)(2048KiB/4223msec) clat (msec): min=158, max=175, avg=166.66, stdev=11.96 lat (msec): min=158, max=175, avg=166.66, stdev=11.96 clat percentiles (msec): | 1.00th=[ 159], 5.00th=[ 159], 10.00th=[ 159], 20.00th=[ 159], | 30.00th=[ 159], 40.00th=[ 159], 50.00th=[ 159], 60.00th=[ 176], | 70.00th=[ 176], 80.00th=[ 176], 90.00th=[ 176], 95.00th=[ 176], | 99.00th=[ 176], 99.50th=[ 176], 99.90th=[ 176], 99.95th=[ 176], | 99.99th=[ 176] bw ( KiB/s): min= 1440, max= 2003, per=35.50%, avg=1721.50, stdev=398.10, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2425KiB/s (2483kB/s)(10.0MiB/4223msec); 0 zone resets clat (msec): min=109, max=693, avg=375.07, stdev=215.94 lat (msec): min=109, max=693, avg=375.36, stdev=216.17 clat percentiles (msec): | 1.00th=[ 110], 5.00th=[ 110], 10.00th=[ 110], 20.00th=[ 188], | 30.00th=[ 192], 40.00th=[ 257], 50.00th=[ 284], 60.00th=[ 321], | 70.00th=[ 414], 80.00th=[ 609], 90.00th=[ 684], 95.00th=[ 693], | 99.00th=[ 693], 99.50th=[ 693], 99.90th=[ 693], 99.95th=[ 693], | 99.99th=[ 693] bw ( KiB/s): min= 1815, max= 4007, per=38.66%, avg=2624.33, stdev=1067.70, samples=6 iops : min= 1, max= 3, avg= 1.67, stdev= 1.03, samples=6 lat (msec) : 250=41.67%, 500=33.33%, 750=25.00% cpu : usr=0.00%, sys=14.00%, ctx=173, 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=147844: Sun Mar 15 18:27:06 2026 read: IOPS=1, BW=1810KiB/s (1854kB/s)(6144KiB/3394msec) clat (usec): min=414, max=475791, avg=156685.60, stdev=196463.49 lat (usec): min=415, max=475793, avg=156686.63, stdev=196463.58 clat percentiles (usec): | 1.00th=[ 416], 5.00th=[ 416], 10.00th=[ 416], 20.00th=[ 594], | 30.00th=[ 594], 40.00th=[ 701], 50.00th=[ 701], 60.00th=[173016], | 70.00th=[291505], 80.00th=[291505], 90.00th=[476054], 95.00th=[476054], | 99.00th=[476054], 99.50th=[476054], 99.90th=[476054], 99.95th=[476054], | 99.99th=[476054] bw ( KiB/s): min= 3820, max= 6023, per=100.00%, avg=4921.50, stdev=1557.76, samples=2 iops : min= 3, max= 5, avg= 4.00, stdev= 1.41, samples=2 write: IOPS=1, BW=1810KiB/s (1854kB/s)(6144KiB/3394msec); 0 zone resets clat (msec): min=202, max=627, avg=389.14, stdev=189.62 lat (msec): min=202, max=627, avg=389.21, stdev=189.63 clat percentiles (msec): | 1.00th=[ 203], 5.00th=[ 203], 10.00th=[ 203], 20.00th=[ 230], | 30.00th=[ 230], 40.00th=[ 232], 50.00th=[ 232], 60.00th=[ 481], | 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= 1815, max= 4031, per=43.69%, avg=2966.00, stdev=1222.95, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 lat (usec) : 500=8.33%, 750=16.67% lat (msec) : 250=33.33%, 500=25.00%, 750=16.67% cpu : usr=0.09%, sys=13.29%, ctx=167, 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=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=147845: Sun Mar 15 18:27:06 2026 read: IOPS=1, BW=1831KiB/s (1874kB/s)(5120KiB/2797msec) clat (usec): min=487, max=240280, avg=135963.82, stdev=122933.11 lat (usec): min=488, max=240281, avg=135964.89, stdev=122933.38 clat percentiles (usec): | 1.00th=[ 490], 5.00th=[ 490], 10.00th=[ 490], 20.00th=[ 490], | 30.00th=[ 3032], 40.00th=[ 3032], 50.00th=[212861], 60.00th=[212861], | 70.00th=[223347], 80.00th=[223347], 90.00th=[240124], 95.00th=[240124], | 99.00th=[240124], 99.50th=[240124], 99.90th=[240124], 99.95th=[240124], | 99.99th=[240124] bw ( KiB/s): min= 1815, max= 5731, per=77.81%, avg=3773.00, stdev=2769.03, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=2, BW=2563KiB/s (2624kB/s)(7168KiB/2797msec); 0 zone resets clat (msec): min=62, max=548, avg=279.91, stdev=156.63 lat (msec): min=62, max=549, avg=280.00, stdev=156.62 clat percentiles (msec): | 1.00th=[ 63], 5.00th=[ 63], 10.00th=[ 63], 20.00th=[ 176], | 30.00th=[ 211], 40.00th=[ 211], 50.00th=[ 275], 60.00th=[ 300], | 70.00th=[ 300], 80.00th=[ 384], 90.00th=[ 550], 95.00th=[ 550], | 99.00th=[ 550], 99.50th=[ 550], 99.90th=[ 550], 99.95th=[ 550], | 99.99th=[ 550] bw ( KiB/s): min= 1424, max= 4031, per=33.80%, avg=2295.00, stdev=1176.29, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (usec) : 500=8.33% lat (msec) : 4=8.33%, 100=8.33%, 250=41.67%, 500=25.00%, 750=8.33% cpu : usr=0.00%, sys=16.48%, ctx=173, 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=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=4850KiB/s (4966kB/s), 485KiB/s-2234KiB/s (497kB/s-2288kB/s), io=20.0MiB (20.0MB), run=2797-4223msec WRITE: bw=6789KiB/s (6952kB/s), 1596KiB/s-2563KiB/s (1634kB/s-2624kB/s), io=28.0MiB (29.4MB), run=2797-4223msec rand-rw: (groupid=0, jobs=1): err= 0: pid=147846: Sun Mar 15 18:27:07 2026 read: IOPS=1, BW=1707KiB/s (1748kB/s)(7168KiB/4200msec) clat (msec): min=100, max=589, avg=221.55, stdev=168.09 lat (msec): min=100, max=589, avg=221.55, stdev=168.09 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 102], 10.00th=[ 102], 20.00th=[ 117], | 30.00th=[ 155], 40.00th=[ 155], 50.00th=[ 159], 60.00th=[ 209], | 70.00th=[ 209], 80.00th=[ 224], 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= 1610, max= 4047, per=54.48%, avg=2341.40, stdev=969.76, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 write: IOPS=1, BW=1219KiB/s (1248kB/s)(5120KiB/4200msec); 0 zone resets clat (msec): min=366, max=649, avg=470.26, stdev=111.40 lat (msec): min=366, max=650, avg=470.53, stdev=111.83 clat percentiles (msec): | 1.00th=[ 368], 5.00th=[ 368], 10.00th=[ 368], 20.00th=[ 368], | 30.00th=[ 418], 40.00th=[ 418], 50.00th=[ 418], 60.00th=[ 418], | 70.00th=[ 502], 80.00th=[ 502], 90.00th=[ 651], 95.00th=[ 651], | 99.00th=[ 651], 99.50th=[ 651], 99.90th=[ 651], 99.95th=[ 651], | 99.99th=[ 651] bw ( KiB/s): min= 2000, max= 2039, per=33.58%, avg=2020.80, stdev=14.50, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 250=50.00%, 500=25.00%, 750=25.00% cpu : usr=0.00%, sys=5.36%, 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=147847: Sun Mar 15 18:27:07 2026 read: IOPS=0, BW=430KiB/s (440kB/s)(2048KiB/4764msec) clat (msec): min=119, max=147, avg=133.39, stdev=19.97 lat (msec): min=119, max=147, avg=133.39, stdev=19.97 clat percentiles (msec): | 1.00th=[ 120], 5.00th=[ 120], 10.00th=[ 120], 20.00th=[ 120], | 30.00th=[ 120], 40.00th=[ 120], 50.00th=[ 120], 60.00th=[ 148], | 70.00th=[ 148], 80.00th=[ 148], 90.00th=[ 148], 95.00th=[ 148], | 99.00th=[ 148], 99.50th=[ 148], 99.90th=[ 148], 99.95th=[ 148], | 99.99th=[ 148] bw ( KiB/s): min= 1553, max= 2000, per=41.33%, avg=1776.50, stdev=316.08, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2149KiB/s (2201kB/s)(10.0MiB/4764msec); 0 zone resets clat (msec): min=136, max=977, avg=413.62, stdev=327.26 lat (msec): min=136, max=977, avg=413.70, stdev=327.26 clat percentiles (msec): | 1.00th=[ 138], 5.00th=[ 138], 10.00th=[ 138], 20.00th=[ 157], | 30.00th=[ 161], 40.00th=[ 161], 50.00th=[ 226], 60.00th=[ 264], | 70.00th=[ 430], 80.00th=[ 785], 90.00th=[ 835], 95.00th=[ 978], | 99.00th=[ 978], 99.50th=[ 978], 99.90th=[ 978], 99.95th=[ 978], | 99.99th=[ 978] bw ( KiB/s): min= 1988, max= 6071, per=50.24%, avg=3023.33, stdev=1690.70, samples=6 iops : min= 1, max= 5, avg= 2.00, stdev= 1.67, samples=6 lat (msec) : 250=58.33%, 500=16.67%, 1000=25.00% cpu : usr=0.00%, sys=4.01%, ctx=120, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=147848: Sun Mar 15 18:27:07 2026 read: IOPS=1, BW=1311KiB/s (1343kB/s)(6144KiB/4686msec) clat (msec): min=62, max=409, avg=245.87, stdev=141.36 lat (msec): min=62, max=409, avg=245.88, stdev=141.36 clat percentiles (msec): | 1.00th=[ 64], 5.00th=[ 64], 10.00th=[ 64], 20.00th=[ 85], | 30.00th=[ 85], 40.00th=[ 271], 50.00th=[ 271], 60.00th=[ 309], | 70.00th=[ 342], 80.00th=[ 342], 90.00th=[ 409], 95.00th=[ 409], | 99.00th=[ 409], 99.50th=[ 409], 99.90th=[ 409], 99.95th=[ 409], | 99.99th=[ 409] bw ( KiB/s): min= 2000, max= 2039, per=46.95%, avg=2018.00, stdev=19.67, samples=3 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=3 write: IOPS=1, BW=1311KiB/s (1343kB/s)(6144KiB/4686msec); 0 zone resets clat (msec): min=163, max=1058, avg=484.07, stdev=372.78 lat (msec): min=163, max=1058, avg=484.13, stdev=372.79 clat percentiles (msec): | 1.00th=[ 163], 5.00th=[ 163], 10.00th=[ 163], 20.00th=[ 176], | 30.00th=[ 176], 40.00th=[ 313], 50.00th=[ 313], 60.00th=[ 359], | 70.00th=[ 835], 80.00th=[ 835], 90.00th=[ 1062], 95.00th=[ 1062], | 99.00th=[ 1062], 99.50th=[ 1062], 99.90th=[ 1062], 99.95th=[ 1062], | 99.99th=[ 1062] bw ( KiB/s): min= 1988, max= 4055, per=44.77%, avg=2694.00, stdev=1178.94, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 100=16.67%, 250=16.67%, 500=50.00%, 1000=8.33%, 2000=8.33% cpu : usr=0.02%, sys=4.06%, ctx=73, 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=147849: Sun Mar 15 18:27:07 2026 read: IOPS=1, BW=1127KiB/s (1154kB/s)(5120KiB/4545msec) clat (msec): min=86, max=350, avg=146.19, stdev=114.85 lat (msec): min=86, max=350, avg=146.20, stdev=114.85 clat percentiles (msec): | 1.00th=[ 87], 5.00th=[ 87], 10.00th=[ 87], 20.00th=[ 87], | 30.00th=[ 89], 40.00th=[ 89], 50.00th=[ 91], 60.00th=[ 91], | 70.00th=[ 115], 80.00th=[ 115], 90.00th=[ 351], 95.00th=[ 351], | 99.00th=[ 351], 99.50th=[ 351], 99.90th=[ 351], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 2000, max= 6119, per=94.45%, avg=4059.50, stdev=2912.57, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=1, BW=1577KiB/s (1615kB/s)(7168KiB/4545msec); 0 zone resets clat (msec): min=134, max=1179, avg=538.39, stdev=373.57 lat (msec): min=134, max=1179, avg=539.24, stdev=373.75 clat percentiles (msec): | 1.00th=[ 136], 5.00th=[ 136], 10.00th=[ 136], 20.00th=[ 146], | 30.00th=[ 405], 40.00th=[ 405], 50.00th=[ 468], 60.00th=[ 609], | 70.00th=[ 609], 80.00th=[ 827], 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= 1988, max= 2027, per=33.41%, avg=2010.60, stdev=16.32, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 100=25.00%, 250=25.00%, 500=25.00%, 750=8.33%, 1000=8.33% lat (msec) : 2000=8.33% cpu : usr=0.00%, sys=4.78%, ctx=109, 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=4299KiB/s (4402kB/s), 430KiB/s-1707KiB/s (440kB/s-1748kB/s), io=20.0MiB (20.0MB), run=4200-4764msec WRITE: bw=6018KiB/s (6163kB/s), 1219KiB/s-2149KiB/s (1248kB/s-2201kB/s), io=28.0MiB (29.4MB), run=4200-4764msec 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=147860: Sun Mar 15 18:27:21 2026 read: IOPS=1, BW=4867KiB/s (4983kB/s)(12.0MiB/2525msec) clat (msec): min=549, max=1245, avg=828.55, stdev=367.95 lat (msec): min=549, max=1245, avg=828.55, stdev=367.95 clat percentiles (msec): | 1.00th=[ 550], 5.00th=[ 550], 10.00th=[ 550], 20.00th=[ 550], | 30.00th=[ 550], 40.00th=[ 693], 50.00th=[ 693], 60.00th=[ 693], | 70.00th=[ 1250], 80.00th=[ 1250], 90.00th=[ 1250], 95.00th=[ 1250], | 99.00th=[ 1250], 99.50th=[ 1250], 99.90th=[ 1250], 99.95th=[ 1250], | 99.99th=[ 1250] bw ( KiB/s): min= 7907, max= 7953, per=100.00%, avg=7930.00, stdev=32.53, 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=0.00%, sys=4.64%, 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=147861: Sun Mar 15 18:27:21 2026 read: IOPS=0, BW=1191KiB/s (1220kB/s)(4096KiB/3439msec) clat (nsec): min=1036.3M, max=1036.3M, avg=1036272542.00, stdev= 0.00 lat (nsec): min=1036.3M, max=1036.3M, avg=1036274952.00, 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= 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 write: IOPS=0, BW=2382KiB/s (2439kB/s)(8192KiB/3439msec); 0 zone resets clat (msec): min=239, max=2088, avg=1163.94, stdev=1306.88 lat (msec): min=240, max=2088, avg=1164.24, stdev=1306.92 clat percentiles (msec): | 1.00th=[ 241], 5.00th=[ 241], 10.00th=[ 241], 20.00th=[ 241], | 30.00th=[ 241], 40.00th=[ 241], 50.00th=[ 241], 60.00th=[ 2089], | 70.00th=[ 2089], 80.00th=[ 2089], 90.00th=[ 2089], 95.00th=[ 2089], | 99.00th=[ 2089], 99.50th=[ 2089], 99.90th=[ 2089], 99.95th=[ 2089], | 99.99th=[ 2089] bw ( KiB/s): min= 7922, max= 7922, per=83.14%, avg=7922.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=2.82%, ctx=58, 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=147862: Sun Mar 15 18:27:21 2026 write: IOPS=2, BW=8445KiB/s (8648kB/s)(12.0MiB/1455msec); 0 zone resets clat (msec): min=306, max=757, avg=472.10, stdev=247.96 lat (msec): min=308, max=757, avg=473.06, stdev=247.38 clat percentiles (msec): | 1.00th=[ 309], 5.00th=[ 309], 10.00th=[ 309], 20.00th=[ 309], | 30.00th=[ 309], 40.00th=[ 355], 50.00th=[ 355], 60.00th=[ 355], | 70.00th=[ 760], 80.00th=[ 760], 90.00th=[ 760], 95.00th=[ 760], | 99.00th=[ 760], 99.50th=[ 760], 99.90th=[ 760], 99.95th=[ 760], | 99.99th=[ 760] bw ( KiB/s): min= 6907, max= 8126, per=78.89%, avg=7516.50, stdev=861.96, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=66.67%, 1000=33.33% cpu : usr=0.07%, sys=7.91%, ctx=51, 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=147864: Sun Mar 15 18:27:21 2026 write: IOPS=1, BW=4513KiB/s (4621kB/s)(12.0MiB/2723msec); 0 zone resets clat (msec): min=415, max=1436, avg=833.99, stdev=534.88 lat (msec): min=417, max=1436, avg=836.05, stdev=533.52 clat percentiles (msec): | 1.00th=[ 414], 5.00th=[ 414], 10.00th=[ 414], 20.00th=[ 414], | 30.00th=[ 414], 40.00th=[ 651], 50.00th=[ 651], 60.00th=[ 651], | 70.00th=[ 1435], 80.00th=[ 1435], 90.00th=[ 1435], 95.00th=[ 1435], | 99.00th=[ 1435], 99.50th=[ 1435], 99.90th=[ 1435], 99.95th=[ 1435], | 99.99th=[ 1435] bw ( KiB/s): min= 5944, max= 7953, per=72.93%, avg=6948.50, stdev=1420.58, 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=0.04%, sys=4.30%, ctx=45, 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=4764KiB/s (4879kB/s), 1191KiB/s-4867KiB/s (1220kB/s-4983kB/s), io=16.0MiB (16.8MB), run=2525-3439msec WRITE: bw=9528KiB/s (9757kB/s), 2382KiB/s-8445KiB/s (2439kB/s-8648kB/s), io=32.0MiB (33.6MB), run=1455-3439msec rand-rw: (groupid=0, jobs=1): err= 0: pid=147857: Sun Mar 15 18:27:21 2026 read: IOPS=1, BW=4737KiB/s (4851kB/s)(12.0MiB/2594msec) clat (msec): min=715, max=931, avg=809.67, stdev=110.42 lat (msec): min=715, max=931, avg=809.67, stdev=110.42 clat percentiles (msec): | 1.00th=[ 718], 5.00th=[ 718], 10.00th=[ 718], 20.00th=[ 718], | 30.00th=[ 718], 40.00th=[ 785], 50.00th=[ 785], 60.00th=[ 785], | 70.00th=[ 936], 80.00th=[ 936], 90.00th=[ 936], 95.00th=[ 936], | 99.00th=[ 936], 99.50th=[ 936], 99.90th=[ 936], 99.95th=[ 936], | 99.99th=[ 936] bw ( KiB/s): min= 8110, max= 8175, per=100.00%, avg=8142.50, stdev=45.96, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 1000=66.67% cpu : usr=0.00%, sys=14.11%, ctx=396, 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=147858: Sun Mar 15 18:27:21 2026 read: IOPS=0, BW=1550KiB/s (1588kB/s)(4096KiB/2642msec) clat (nsec): min=874590k, max=874590k, avg=874590017.00, stdev= 0.00 lat (nsec): min=874593k, max=874593k, avg=874592589.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 877], 5.00th=[ 877], 10.00th=[ 877], 20.00th=[ 877], | 30.00th=[ 877], 40.00th=[ 877], 50.00th=[ 877], 60.00th=[ 877], | 70.00th=[ 877], 80.00th=[ 877], 90.00th=[ 877], 95.00th=[ 877], | 99.00th=[ 877], 99.50th=[ 877], 99.90th=[ 877], 99.95th=[ 877], | 99.99th=[ 877] 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 write: IOPS=0, BW=3101KiB/s (3175kB/s)(8192KiB/2642msec); 0 zone resets clat (msec): min=809, max=827, avg=818.83, stdev=12.56 lat (msec): min=810, max=828, avg=819.32, stdev=12.41 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=[ 827], | 70.00th=[ 827], 80.00th=[ 827], 90.00th=[ 827], 95.00th=[ 827], | 99.00th=[ 827], 99.50th=[ 827], 99.90th=[ 827], 99.95th=[ 827], | 99.99th=[ 827] bw ( KiB/s): min= 8175, max= 8175, per=85.80%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 1000=100.00% cpu : usr=0.00%, sys=5.91%, ctx=122, 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=147859: Sun Mar 15 18:27:21 2026 write: IOPS=0, BW=3573KiB/s (3659kB/s)(12.0MiB/3439msec); 0 zone resets clat (msec): min=246, max=2678, avg=1088.53, stdev=1377.85 lat (msec): min=246, max=2678, avg=1088.87, stdev=1377.86 clat percentiles (msec): | 1.00th=[ 247], 5.00th=[ 247], 10.00th=[ 247], 20.00th=[ 247], | 30.00th=[ 247], 40.00th=[ 342], 50.00th=[ 342], 60.00th=[ 342], | 70.00th=[ 2668], 80.00th=[ 2668], 90.00th=[ 2668], 95.00th=[ 2668], | 99.00th=[ 2668], 99.50th=[ 2668], 99.90th=[ 2668], 99.95th=[ 2668], | 99.99th=[ 2668] bw ( KiB/s): min= 8175, max= 8175, per=85.80%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 500=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=4.10%, ctx=63, 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=147863: Sun Mar 15 18:27:21 2026 write: IOPS=1, BW=4981KiB/s (5100kB/s)(12.0MiB/2467msec); 0 zone resets clat (msec): min=254, max=1583, avg=791.81, stdev=700.40 lat (msec): min=254, max=1584, avg=792.19, stdev=700.25 clat percentiles (msec): | 1.00th=[ 255], 5.00th=[ 255], 10.00th=[ 255], 20.00th=[ 255], | 30.00th=[ 255], 40.00th=[ 542], 50.00th=[ 542], 60.00th=[ 542], | 70.00th=[ 1586], 80.00th=[ 1586], 90.00th=[ 1586], 95.00th=[ 1586], | 99.00th=[ 1586], 99.50th=[ 1586], 99.90th=[ 1586], 99.95th=[ 1586], | 99.99th=[ 1586] bw ( KiB/s): min= 6215, max= 8110, per=75.17%, avg=7162.50, stdev=1339.97, 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=5.31%, ctx=62, 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=6201KiB/s (6350kB/s), 1550KiB/s-4737KiB/s (1588kB/s-4851kB/s), io=16.0MiB (16.8MB), run=2594-2642msec WRITE: bw=9528KiB/s (9757kB/s), 3101KiB/s-4981KiB/s (3175kB/s-5100kB/s), io=32.0MiB (33.6MB), run=2467-3439msec