== sanity test 398b: DIO and buffer IO race ============== 09:58:18 (1789135098) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 6.05863 s, 8.3 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=146059: Fri Sep 11 10:00:43 2026 read: IOPS=12, BW=49.1KiB/s (50.2kB/s)(5992KiB/122109msec) clat (usec): min=31, max=894209, avg=40151.83, stdev=36994.80 lat (usec): min=32, max=894210, avg=40154.35, stdev=36994.67 clat percentiles (usec): | 1.00th=[ 48], 5.00th=[ 57], 10.00th=[ 351], 20.00th=[ 17171], | 30.00th=[ 23200], 40.00th=[ 28443], 50.00th=[ 34341], 60.00th=[ 40633], | 70.00th=[ 47973], 80.00th=[ 58983], 90.00th=[ 77071], 95.00th=[ 93848], | 99.00th=[149947], 99.50th=[168821], 99.90th=[217056], 99.95th=[893387], | 99.99th=[893387] bw ( KiB/s): min= 7, max= 136, per=26.20%, avg=49.26, stdev=20.94, samples=238 iops : min= 1, max= 34, avg=11.70, stdev= 5.28, samples=238 write: IOPS=12, BW=51.6KiB/s (52.8kB/s)(6296KiB/122109msec); 0 zone resets clat (usec): min=721, max=450848, avg=39103.14, stdev=43992.91 lat (usec): min=723, max=450849, avg=39105.20, stdev=43992.44 clat percentiles (usec): | 1.00th=[ 1029], 5.00th=[ 1172], 10.00th=[ 1549], 20.00th=[ 3556], | 30.00th=[ 6718], 40.00th=[ 15401], 50.00th=[ 28181], 60.00th=[ 38011], | 70.00th=[ 50070], 80.00th=[ 66323], 90.00th=[ 94897], 95.00th=[116917], | 99.00th=[202376], 99.50th=[240124], 99.90th=[312476], 99.95th=[450888], | 99.99th=[450888] bw ( KiB/s): min= 7, max= 119, per=26.14%, avg=51.49, stdev=22.63, samples=239 iops : min= 1, max= 29, avg=12.26, stdev= 5.68, samples=239 lat (usec) : 50=0.91%, 100=3.42%, 250=0.39%, 500=0.16%, 750=0.10% lat (usec) : 1000=0.23% lat (msec) : 2=6.48%, 4=4.56%, 10=7.10%, 20=10.68%, 50=37.34% lat (msec) : 100=22.66%, 250=5.76%, 500=0.20%, 1000=0.03% cpu : usr=0.07%, sys=5.02%, ctx=6354, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=146060: Fri Sep 11 10:00:43 2026 read: IOPS=11, BW=46.8KiB/s (47.9kB/s)(5940KiB/126899msec) clat (usec): min=32, max=883218, avg=41304.86, stdev=38273.94 lat (usec): min=32, max=883219, avg=41307.13, stdev=38274.24 clat percentiles (usec): | 1.00th=[ 49], 5.00th=[ 57], 10.00th=[ 2704], 20.00th=[ 17695], | 30.00th=[ 22676], 40.00th=[ 28181], 50.00th=[ 34341], 60.00th=[ 40633], | 70.00th=[ 50594], 80.00th=[ 61080], 90.00th=[ 80217], 95.00th=[ 99091], | 99.00th=[141558], 99.50th=[162530], 99.90th=[254804], 99.95th=[884999], | 99.99th=[884999] bw ( KiB/s): min= 7, max= 119, per=24.79%, avg=46.60, stdev=21.17, samples=247 iops : min= 1, max= 29, avg=11.04, stdev= 5.33, samples=247 write: IOPS=12, BW=50.0KiB/s (51.2kB/s)(6348KiB/126899msec); 0 zone resets clat (usec): min=905, max=383988, avg=41041.39, stdev=45990.75 lat (usec): min=906, max=383990, avg=41042.84, stdev=45990.89 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1188], 10.00th=[ 1467], 20.00th=[ 3425], | 30.00th=[ 7111], 40.00th=[ 16909], 50.00th=[ 28443], 60.00th=[ 40109], | 70.00th=[ 51643], 80.00th=[ 68682], 90.00th=[102237], 95.00th=[129500], | 99.00th=[196084], 99.50th=[256902], 99.90th=[350225], 99.95th=[383779], | 99.99th=[383779] bw ( KiB/s): min= 7, max= 160, per=25.02%, avg=49.29, stdev=23.53, samples=249 iops : min= 1, max= 40, avg=11.71, stdev= 5.93, samples=249 lat (usec) : 50=0.68%, 100=3.45%, 250=0.42%, 500=0.10%, 750=0.03% lat (usec) : 1000=0.10% lat (msec) : 2=6.93%, 4=4.39%, 10=7.00%, 20=10.74%, 50=35.22% lat (msec) : 100=23.18%, 250=7.42%, 500=0.29%, 1000=0.03% cpu : usr=0.06%, sys=5.12%, ctx=6443, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=146061: Fri Sep 11 10:00:43 2026 read: IOPS=12, BW=48.2KiB/s (49.3kB/s)(6028KiB/125166msec) clat (usec): min=29, max=560253, avg=40782.24, stdev=34833.71 lat (usec): min=29, max=560255, avg=40784.72, stdev=34832.59 clat percentiles (usec): | 1.00th=[ 46], 5.00th=[ 56], 10.00th=[ 652], 20.00th=[ 18220], | 30.00th=[ 23200], 40.00th=[ 28181], 50.00th=[ 33817], 60.00th=[ 39584], | 70.00th=[ 47973], 80.00th=[ 59507], 90.00th=[ 79168], 95.00th=[101188], | 99.00th=[152044], 99.50th=[177210], 99.90th=[337642], 99.95th=[557843], | 99.99th=[557843] bw ( KiB/s): min= 7, max= 127, per=25.61%, avg=48.14, stdev=21.48, samples=245 iops : min= 1, max= 31, avg=11.42, stdev= 5.39, samples=245 write: IOPS=12, BW=50.0KiB/s (51.2kB/s)(6260KiB/125166msec); 0 zone resets clat (usec): min=922, max=309089, avg=40428.73, stdev=41766.80 lat (usec): min=922, max=309090, avg=40432.02, stdev=41765.79 clat percentiles (usec): | 1.00th=[ 1037], 5.00th=[ 1172], 10.00th=[ 1631], 20.00th=[ 4047], | 30.00th=[ 9765], 40.00th=[ 19268], 50.00th=[ 29492], 60.00th=[ 40109], | 70.00th=[ 52167], 80.00th=[ 67634], 90.00th=[ 94897], 95.00th=[119014], | 99.00th=[173016], 99.50th=[227541], 99.90th=[283116], 99.95th=[308282], | 99.99th=[308282] bw ( KiB/s): min= 7, max= 136, per=25.23%, avg=49.70, stdev=21.04, samples=246 iops : min= 1, max= 34, avg=11.82, stdev= 5.30, samples=246 lat (usec) : 50=1.04%, 100=3.35%, 250=0.26%, 500=0.23%, 750=0.03% lat (usec) : 1000=0.23% lat (msec) : 2=5.96%, 4=4.04%, 10=5.66%, 20=11.23%, 50=37.43% lat (msec) : 100=23.34%, 250=6.93%, 500=0.23%, 750=0.03% cpu : usr=0.07%, sys=5.24%, ctx=6525, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=146062: Fri Sep 11 10:00:43 2026 read: IOPS=11, BW=47.4KiB/s (48.6kB/s)(6052KiB/127564msec) clat (usec): min=32, max=378669, avg=40357.55, stdev=32849.46 lat (usec): min=32, max=378670, avg=40361.25, stdev=32850.20 clat percentiles (usec): | 1.00th=[ 44], 5.00th=[ 55], 10.00th=[ 97], 20.00th=[ 17171], | 30.00th=[ 22414], 40.00th=[ 27657], 50.00th=[ 33817], 60.00th=[ 40633], | 70.00th=[ 49021], 80.00th=[ 60031], 90.00th=[ 80217], 95.00th=[ 98042], | 99.00th=[149947], 99.50th=[193987], 99.90th=[229639], 99.95th=[379585], | 99.99th=[379585] bw ( KiB/s): min= 7, max= 112, per=25.36%, avg=47.69, stdev=20.29, samples=248 iops : min= 1, max= 28, avg=11.31, stdev= 5.10, samples=248 write: IOPS=12, BW=48.9KiB/s (50.1kB/s)(6236KiB/127564msec); 0 zone resets clat (usec): min=748, max=875993, avg=42382.42, stdev=49114.99 lat (usec): min=749, max=875994, avg=42386.52, stdev=49115.81 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1156], 10.00th=[ 1434], 20.00th=[ 3720], | 30.00th=[ 8586], 40.00th=[ 19006], 50.00th=[ 30016], 60.00th=[ 39584], | 70.00th=[ 55313], 80.00th=[ 72877], 90.00th=[100140], 95.00th=[129500], | 99.00th=[189793], 99.50th=[217056], 99.90th=[329253], 99.95th=[876610], | 99.99th=[876610] bw ( KiB/s): min= 7, max= 127, per=24.67%, avg=48.60, stdev=20.38, samples=251 iops : min= 1, max= 31, avg=11.53, stdev= 5.10, samples=251 lat (usec) : 50=1.20%, 100=3.74%, 250=0.36%, 500=0.10%, 750=0.13% lat (usec) : 1000=0.23% lat (msec) : 2=6.97%, 4=3.39%, 10=5.99%, 20=10.94%, 50=35.90% lat (msec) : 100=23.50%, 250=7.29%, 500=0.23%, 1000=0.03% cpu : usr=0.06%, sys=4.93%, ctx=6471, majf=0, minf=18 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=188KiB/s (193kB/s), 46.8KiB/s-49.1KiB/s (47.9kB/s-50.2kB/s), io=23.4MiB (24.6MB), run=122109-127564msec WRITE: bw=197KiB/s (202kB/s), 48.9KiB/s-51.6KiB/s (50.1kB/s-52.8kB/s), io=24.6MiB (25.7MB), run=122109-127564msec rand-rw: (groupid=0, jobs=1): err= 0: pid=146064: Fri Sep 11 10:02:59 2026 read: IOPS=5, BW=23.1KiB/s (23.7kB/s)(5992KiB/259112msec) clat (msec): min=4, max=914, avg=34.71, stdev=45.23 lat (msec): min=4, max=914, avg=34.71, stdev=45.23 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 18], 50.00th=[ 21], 60.00th=[ 26], | 70.00th=[ 32], 80.00th=[ 46], 90.00th=[ 74], 95.00th=[ 110], | 99.00th=[ 192], 99.50th=[ 255], 99.90th=[ 485], 99.95th=[ 911], | 99.99th=[ 911] bw ( KiB/s): min= 7, max= 103, per=28.41%, avg=25.86, stdev=17.52, samples=449 iops : min= 1, max= 25, avg= 5.88, stdev= 4.43, samples=449 write: IOPS=6, BW=24.3KiB/s (24.9kB/s)(6296KiB/259112msec); 0 zone resets clat (msec): min=35, max=603, avg=131.52, stdev=64.68 lat (msec): min=35, max=603, avg=131.52, stdev=64.68 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 61], 10.00th=[ 69], 20.00th=[ 82], | 30.00th=[ 94], 40.00th=[ 105], 50.00th=[ 115], 60.00th=[ 130], | 70.00th=[ 148], 80.00th=[ 174], 90.00th=[ 215], 95.00th=[ 249], | 99.00th=[ 372], 99.50th=[ 409], 99.90th=[ 558], 99.95th=[ 600], | 99.99th=[ 600] bw ( KiB/s): min= 7, max= 55, per=25.22%, avg=23.96, stdev=11.10, samples=507 iops : min= 1, max= 13, avg= 5.39, stdev= 2.85, samples=507 lat (msec) : 10=4.88%, 20=18.68%, 50=17.15%, 100=23.54%, 250=32.98% lat (msec) : 500=2.60%, 750=0.13%, 1000=0.03% cpu : usr=0.03%, sys=1.04%, ctx=5173, 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=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=146065: Fri Sep 11 10:02:59 2026 read: IOPS=5, BW=22.6KiB/s (23.1kB/s)(5940KiB/262948msec) clat (msec): min=5, max=588, avg=33.26, stdev=39.53 lat (msec): min=5, max=588, avg=33.27, stdev=39.53 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 13], | 30.00th=[ 15], 40.00th=[ 18], 50.00th=[ 21], 60.00th=[ 25], | 70.00th=[ 31], 80.00th=[ 42], 90.00th=[ 70], 95.00th=[ 106], | 99.00th=[ 184], 99.50th=[ 266], 99.90th=[ 384], 99.95th=[ 592], | 99.99th=[ 592] bw ( KiB/s): min= 5, max= 96, per=27.84%, avg=25.33, stdev=16.95, samples=453 iops : min= 1, max= 24, avg= 5.73, stdev= 4.29, samples=453 write: IOPS=6, BW=24.1KiB/s (24.7kB/s)(6348KiB/262948msec); 0 zone resets clat (msec): min=29, max=536, avg=134.50, stdev=67.08 lat (msec): min=29, max=536, avg=134.50, stdev=67.08 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 63], 10.00th=[ 71], 20.00th=[ 84], | 30.00th=[ 95], 40.00th=[ 106], 50.00th=[ 120], 60.00th=[ 133], | 70.00th=[ 150], 80.00th=[ 176], 90.00th=[ 213], 95.00th=[ 268], | 99.00th=[ 376], 99.50th=[ 422], 99.90th=[ 535], 99.95th=[ 535], | 99.99th=[ 535] bw ( KiB/s): min= 7, max= 56, per=25.02%, avg=23.77, stdev=10.63, samples=515 iops : min= 1, max= 14, avg= 5.33, stdev= 2.73, samples=515 lat (msec) : 10=5.05%, 20=18.75%, 50=17.09%, 100=23.05%, 250=32.58% lat (msec) : 500=3.29%, 750=0.20% cpu : usr=0.04%, sys=1.05%, ctx=5121, 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=146066: Fri Sep 11 10:02:59 2026 read: IOPS=5, BW=23.1KiB/s (23.6kB/s)(6028KiB/261128msec) clat (msec): min=4, max=389, avg=34.26, stdev=37.36 lat (msec): min=4, max=389, avg=34.27, stdev=37.36 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=[ 47], 90.00th=[ 78], 95.00th=[ 103], | 99.00th=[ 176], 99.50th=[ 266], 99.90th=[ 363], 99.95th=[ 388], | 99.99th=[ 388] bw ( KiB/s): min= 7, max= 96, per=28.25%, avg=25.71, stdev=16.98, samples=454 iops : min= 1, max= 24, avg= 5.84, stdev= 4.29, samples=454 write: IOPS=5, BW=23.0KiB/s (24.5kB/s)(6260KiB/261128msec); 0 zone resets clat (msec): min=37, max=674, avg=133.79, stdev=65.93 lat (msec): min=37, max=674, avg=133.80, stdev=65.94 clat percentiles (msec): | 1.00th=[ 49], 5.00th=[ 63], 10.00th=[ 71], 20.00th=[ 84], | 30.00th=[ 95], 40.00th=[ 105], 50.00th=[ 117], 60.00th=[ 132], | 70.00th=[ 150], 80.00th=[ 174], 90.00th=[ 220], 95.00th=[ 264], | 99.00th=[ 359], 99.50th=[ 401], 99.90th=[ 558], 99.95th=[ 676], | 99.99th=[ 676] bw ( KiB/s): min= 7, max= 55, per=24.94%, avg=23.70, stdev=10.67, samples=510 iops : min= 1, max= 13, avg= 5.32, stdev= 2.75, samples=510 lat (msec) : 10=4.65%, 20=17.32%, 50=18.65%, 100=24.06%, 250=31.93% lat (msec) : 500=3.26%, 750=0.13% cpu : usr=0.03%, sys=1.05%, ctx=5036, 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=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=146067: Fri Sep 11 10:02:59 2026 read: IOPS=5, BW=23.4KiB/s (23.9kB/s)(6052KiB/258954msec) clat (msec): min=5, max=490, avg=33.03, stdev=38.71 lat (msec): min=5, max=490, avg=33.04, stdev=38.71 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 13], | 30.00th=[ 15], 40.00th=[ 18], 50.00th=[ 21], 60.00th=[ 26], | 70.00th=[ 32], 80.00th=[ 44], 90.00th=[ 71], 95.00th=[ 99], | 99.00th=[ 180], 99.50th=[ 300], 99.90th=[ 376], 99.95th=[ 489], | 99.99th=[ 489] bw ( KiB/s): min= 7, max= 119, per=28.83%, avg=26.24, stdev=17.80, samples=447 iops : min= 1, max= 29, avg= 5.97, stdev= 4.50, samples=447 write: IOPS=6, BW=24.1KiB/s (24.7kB/s)(6236KiB/258954msec); 0 zone resets clat (msec): min=37, max=631, avg=133.98, stdev=65.23 lat (msec): min=37, max=631, avg=133.98, stdev=65.23 clat percentiles (msec): | 1.00th=[ 49], 5.00th=[ 63], 10.00th=[ 71], 20.00th=[ 87], | 30.00th=[ 95], 40.00th=[ 108], 50.00th=[ 118], 60.00th=[ 132], | 70.00th=[ 150], 80.00th=[ 174], 90.00th=[ 215], 95.00th=[ 266], | 99.00th=[ 355], 99.50th=[ 397], 99.90th=[ 600], 99.95th=[ 634], | 99.99th=[ 634] bw ( KiB/s): min= 7, max= 48, per=25.10%, avg=23.85, stdev=10.44, samples=505 iops : min= 1, max= 12, avg= 5.36, stdev= 2.70, samples=505 lat (msec) : 10=5.63%, 20=18.75%, 50=17.15%, 100=22.82%, 250=32.26% lat (msec) : 500=3.26%, 750=0.13% cpu : usr=0.03%, sys=1.04%, ctx=5102, 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=91.3KiB/s (93.5kB/s), 22.6KiB/s-23.4KiB/s (23.1kB/s-23.9kB/s), io=23.4MiB (24.6MB), run=258954-262948msec WRITE: bw=95.6KiB/s (97.9kB/s), 23.0KiB/s-24.3KiB/s (24.5kB/s-24.9kB/s), io=24.6MiB (25.7MB), run=258954-262948msec 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=146130: Fri Sep 11 10:03:44 2026 read: IOPS=10, BW=164KiB/s (168kB/s)(5920KiB/36000msec) clat (usec): min=38, max=525237, avg=47601.73, stdev=48797.38 lat (usec): min=38, max=525238, avg=47602.80, stdev=48797.47 clat percentiles (usec): | 1.00th=[ 42], 5.00th=[ 53], 10.00th=[ 57], 20.00th=[ 99], | 30.00th=[ 23987], 40.00th=[ 33424], 50.00th=[ 41157], 60.00th=[ 49546], | 70.00th=[ 59507], 80.00th=[ 68682], 90.00th=[ 98042], 95.00th=[126354], | 99.00th=[214959], 99.50th=[261096], 99.90th=[526386], 99.95th=[526386], | 99.99th=[526386] bw ( KiB/s): min= 30, max= 382, per=24.49%, avg=162.88, stdev=77.68, samples=69 iops : min= 1, max= 23, avg= 9.41, stdev= 4.91, samples=69 write: IOPS=11, BW=177KiB/s (181kB/s)(6368KiB/36000msec); 0 zone resets clat (usec): min=1349, max=299244, avg=46053.87, stdev=51930.59 lat (usec): min=1351, max=299245, avg=46055.68, stdev=51930.64 clat percentiles (usec): | 1.00th=[ 1385], 5.00th=[ 1631], 10.00th=[ 1991], 20.00th=[ 3949], | 30.00th=[ 8291], 40.00th=[ 13566], 50.00th=[ 27132], 60.00th=[ 41157], | 70.00th=[ 58983], 80.00th=[ 82314], 90.00th=[117965], 95.00th=[152044], | 99.00th=[233833], 99.50th=[287310], 99.90th=[299893], 99.95th=[299893], | 99.99th=[299893] bw ( KiB/s): min= 30, max= 474, per=25.30%, avg=177.09, stdev=81.45, samples=69 iops : min= 1, max= 29, avg=10.30, stdev= 5.12, samples=69 lat (usec) : 50=1.30%, 100=8.46%, 250=0.78%, 500=0.13% lat (msec) : 2=5.47%, 4=5.34%, 10=6.25%, 20=8.98%, 50=26.04% lat (msec) : 100=24.87%, 250=11.85%, 500=0.39%, 750=0.13% cpu : usr=0.07%, sys=4.95%, ctx=1443, 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=146131: Fri Sep 11 10:03:44 2026 read: IOPS=10, BW=172KiB/s (176kB/s)(5744KiB/33426msec) clat (usec): min=36, max=544323, avg=49251.72, stdev=51610.93 lat (usec): min=37, max=544324, avg=49267.41, stdev=51619.62 clat percentiles (usec): | 1.00th=[ 40], 5.00th=[ 53], 10.00th=[ 60], 20.00th=[ 101], | 30.00th=[ 22414], 40.00th=[ 32113], 50.00th=[ 42206], 60.00th=[ 50594], | 70.00th=[ 61080], 80.00th=[ 77071], 90.00th=[106431], 95.00th=[130548], | 99.00th=[189793], 99.50th=[320865], 99.90th=[541066], 99.95th=[541066], | 99.99th=[541066] bw ( KiB/s): min= 30, max= 445, per=25.88%, avg=172.12, stdev=85.36, samples=65 iops : min= 1, max= 27, avg= 9.98, stdev= 5.35, samples=65 write: IOPS=12, BW=196KiB/s (200kB/s)(6544KiB/33426msec); 0 zone resets clat (usec): min=1366, max=316019, avg=38332.16, stdev=45452.15 lat (usec): min=1368, max=316021, avg=38337.43, stdev=45450.03 clat percentiles (usec): | 1.00th=[ 1500], 5.00th=[ 1663], 10.00th=[ 1795], 20.00th=[ 4359], | 30.00th=[ 7111], 40.00th=[ 11994], 50.00th=[ 21627], 60.00th=[ 32113], | 70.00th=[ 46924], 80.00th=[ 66847], 90.00th=[ 99091], 95.00th=[128451], | 99.00th=[200279], 99.50th=[217056], 99.90th=[316670], 99.95th=[316670], | 99.99th=[316670] bw ( KiB/s): min= 30, max= 509, per=28.87%, avg=202.11, stdev=101.25, samples=63 iops : min= 1, max= 31, avg=11.89, stdev= 6.44, samples=63 lat (usec) : 50=1.56%, 100=7.68%, 250=0.65%, 500=0.26%, 750=0.13% lat (msec) : 2=5.86%, 4=4.17%, 10=9.64%, 20=7.55%, 50=27.86% lat (msec) : 100=24.35%, 250=9.64%, 500=0.52%, 750=0.13% cpu : usr=0.06%, sys=4.79%, ctx=1405, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=146132: Fri Sep 11 10:03:44 2026 read: IOPS=11, BW=180KiB/s (185kB/s)(6256KiB/34710msec) clat (usec): min=35, max=379528, avg=45297.94, stdev=43282.33 lat (usec): min=36, max=379529, avg=45303.91, stdev=43288.04 clat percentiles (usec): | 1.00th=[ 40], 5.00th=[ 52], 10.00th=[ 59], 20.00th=[ 80], | 30.00th=[ 21890], 40.00th=[ 31851], 50.00th=[ 39060], 60.00th=[ 46400], | 70.00th=[ 62129], 80.00th=[ 74974], 90.00th=[ 95945], 95.00th=[116917], | 99.00th=[181404], 99.50th=[287310], 99.90th=[379585], 99.95th=[379585], | 99.99th=[379585] bw ( KiB/s): min= 61, max= 384, per=27.68%, avg=184.09, stdev=84.26, samples=67 iops : min= 3, max= 24, avg=10.73, stdev= 5.34, samples=67 write: IOPS=10, BW=174KiB/s (178kB/s)(6032KiB/34710msec); 0 zone resets clat (usec): min=1324, max=495594, avg=44985.30, stdev=53482.95 lat (usec): min=1325, max=495596, avg=44987.58, stdev=53482.71 clat percentiles (usec): | 1.00th=[ 1483], 5.00th=[ 1729], 10.00th=[ 2638], 20.00th=[ 5407], | 30.00th=[ 9372], 40.00th=[ 14877], 50.00th=[ 30016], 60.00th=[ 40633], | 70.00th=[ 53740], 80.00th=[ 78119], 90.00th=[111674], 95.00th=[145753], | 99.00th=[200279], 99.50th=[354419], 99.90th=[497026], 99.95th=[497026], | 99.99th=[497026] bw ( KiB/s): min= 31, max= 382, per=25.99%, avg=181.91, stdev=82.76, samples=65 iops : min= 1, max= 23, avg=10.60, stdev= 5.17, samples=65 lat (usec) : 50=1.56%, 100=9.24%, 250=1.04%, 500=0.26%, 750=0.39% lat (msec) : 2=4.43%, 4=4.04%, 10=7.29%, 20=7.68%, 50=28.13% lat (msec) : 100=26.17%, 250=9.11%, 500=0.65% cpu : usr=0.05%, sys=4.81%, ctx=1423, 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=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=146133: Fri Sep 11 10:03:44 2026 read: IOPS=10, BW=173KiB/s (177kB/s)(6032KiB/34833msec) clat (usec): min=36, max=304113, avg=49796.39, stdev=45583.14 lat (usec): min=37, max=304114, avg=49823.61, stdev=45577.54 clat percentiles (usec): | 1.00th=[ 42], 5.00th=[ 53], 10.00th=[ 62], 20.00th=[ 176], | 30.00th=[ 23987], 40.00th=[ 32375], 50.00th=[ 42206], 60.00th=[ 53740], | 70.00th=[ 65799], 80.00th=[ 82314], 90.00th=[105382], 95.00th=[131597], | 99.00th=[206570], 99.50th=[278922], 99.90th=[304088], 99.95th=[304088], | 99.99th=[304088] bw ( KiB/s): min= 31, max= 380, per=25.84%, avg=171.84, stdev=79.46, samples=68 iops : min= 1, max= 23, avg= 9.97, stdev= 5.00, samples=68 write: IOPS=11, BW=180KiB/s (184kB/s)(6256KiB/34833msec); 0 zone resets clat (usec): min=1164, max=515836, avg=40956.72, stdev=54622.37 lat (usec): min=1165, max=515838, avg=40960.59, stdev=54622.42 clat percentiles (usec): | 1.00th=[ 1401], 5.00th=[ 1663], 10.00th=[ 2147], 20.00th=[ 5211], | 30.00th=[ 8160], 40.00th=[ 12256], 50.00th=[ 19792], 60.00th=[ 30540], | 70.00th=[ 47973], 80.00th=[ 68682], 90.00th=[ 98042], 95.00th=[145753], | 99.00th=[252707], 99.50th=[367002], 99.90th=[513803], 99.95th=[513803], | 99.99th=[513803] bw ( KiB/s): min= 30, max= 440, per=25.98%, avg=181.85, stdev=88.87, samples=67 iops : min= 1, max= 27, avg=10.61, stdev= 5.65, samples=67 lat (usec) : 50=1.95%, 100=6.77%, 250=1.30%, 500=0.52% lat (msec) : 2=5.21%, 4=3.52%, 10=9.64%, 20=9.77%, 50=25.00% lat (msec) : 100=25.65%, 250=9.64%, 500=0.91%, 750=0.13% cpu : usr=0.06%, sys=5.06%, ctx=1441, 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=665KiB/s (681kB/s), 164KiB/s-180KiB/s (168kB/s-185kB/s), io=23.4MiB (24.5MB), run=33426-36000msec WRITE: bw=700KiB/s (717kB/s), 174KiB/s-196KiB/s (178kB/s-200kB/s), io=24.6MiB (25.8MB), run=33426-36000msec rand-rw: (groupid=0, jobs=1): err= 0: pid=146125: Fri Sep 11 10:04:37 2026 read: IOPS=4, BW=66.4KiB/s (67.0kB/s)(5920KiB/89152msec) clat (msec): min=6, max=332, avg=44.88, stdev=45.68 lat (msec): min=6, max=332, avg=44.88, stdev=45.68 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 21], 40.00th=[ 26], 50.00th=[ 31], 60.00th=[ 39], | 70.00th=[ 46], 80.00th=[ 55], 90.00th=[ 91], 95.00th=[ 142], | 99.00th=[ 245], 99.50th=[ 292], 99.90th=[ 334], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 29, max= 256, per=29.36%, avg=78.40, stdev=51.52, samples=146 iops : min= 1, max= 16, avg= 4.13, stdev= 3.29, samples=146 write: IOPS=4, BW=71.4KiB/s (73.1kB/s)(6368KiB/89152msec); 0 zone resets clat (msec): min=39, max=803, avg=181.77, stdev=88.85 lat (msec): min=39, max=803, avg=181.78, stdev=88.85 clat percentiles (msec): | 1.00th=[ 57], 5.00th=[ 73], 10.00th=[ 84], 20.00th=[ 108], | 30.00th=[ 128], 40.00th=[ 146], 50.00th=[ 167], 60.00th=[ 188], | 70.00th=[ 213], 80.00th=[ 251], 90.00th=[ 300], 95.00th=[ 330], | 99.00th=[ 472], 99.50th=[ 485], 99.90th=[ 802], 99.95th=[ 802], | 99.99th=[ 802] bw ( KiB/s): min= 29, max= 183, per=26.06%, avg=73.22, stdev=33.58, samples=169 iops : min= 1, max= 11, avg= 3.78, stdev= 2.18, samples=169 lat (msec) : 10=1.04%, 20=12.50%, 50=23.05%, 100=16.15%, 250=36.72% lat (msec) : 500=10.42%, 1000=0.13% cpu : usr=0.03%, sys=0.94%, ctx=1203, 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=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=146126: Fri Sep 11 10:04:37 2026 read: IOPS=4, BW=64.3KiB/s (65.8kB/s)(5744KiB/89396msec) clat (msec): min=7, max=354, avg=45.61, stdev=48.54 lat (msec): min=7, max=354, avg=45.61, stdev=48.54 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 26], 50.00th=[ 31], 60.00th=[ 38], | 70.00th=[ 44], 80.00th=[ 63], 90.00th=[ 95], 95.00th=[ 138], | 99.00th=[ 288], 99.50th=[ 334], 99.90th=[ 355], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 30, max= 320, per=31.94%, avg=85.29, stdev=57.92, samples=131 iops : min= 1, max= 20, avg= 4.57, stdev= 3.72, samples=131 write: IOPS=4, BW=73.2KiB/s (74.0kB/s)(6544KiB/89396msec); 0 zone resets clat (msec): min=41, max=785, avg=178.39, stdev=92.39 lat (msec): min=41, max=785, avg=178.39, stdev=92.39 clat percentiles (msec): | 1.00th=[ 52], 5.00th=[ 68], 10.00th=[ 86], 20.00th=[ 105], | 30.00th=[ 123], 40.00th=[ 142], 50.00th=[ 165], 60.00th=[ 182], | 70.00th=[ 207], 80.00th=[ 236], 90.00th=[ 292], 95.00th=[ 342], | 99.00th=[ 464], 99.50th=[ 617], 99.90th=[ 785], 99.95th=[ 785], | 99.99th=[ 785] bw ( KiB/s): min= 29, max= 224, per=26.31%, avg=73.94, stdev=35.55, samples=172 iops : min= 1, max= 14, avg= 3.83, stdev= 2.31, samples=172 lat (msec) : 10=2.47%, 20=10.81%, 50=22.01%, 100=17.32%, 250=37.37% lat (msec) : 500=9.51%, 750=0.39%, 1000=0.13% cpu : usr=0.03%, sys=0.94%, ctx=1294, 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=146127: Fri Sep 11 10:04:37 2026 read: IOPS=4, BW=72.2KiB/s (73.9kB/s)(6256KiB/86703msec) clat (msec): min=5, max=418, avg=43.43, stdev=49.37 lat (msec): min=5, max=418, avg=43.43, stdev=49.37 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 24], 50.00th=[ 29], 60.00th=[ 35], | 70.00th=[ 42], 80.00th=[ 55], 90.00th=[ 77], 95.00th=[ 146], | 99.00th=[ 266], 99.50th=[ 418], 99.90th=[ 418], 99.95th=[ 418], | 99.99th=[ 418] bw ( KiB/s): min= 30, max= 384, per=33.18%, avg=88.59, stdev=65.12, samples=139 iops : min= 1, max= 24, avg= 4.76, stdev= 4.15, samples=139 write: IOPS=4, BW=69.6KiB/s (71.2kB/s)(6032KiB/86703msec); 0 zone resets clat (msec): min=34, max=737, avg=184.39, stdev=97.33 lat (msec): min=34, max=737, avg=184.40, stdev=97.33 clat percentiles (msec): | 1.00th=[ 54], 5.00th=[ 71], 10.00th=[ 84], 20.00th=[ 108], | 30.00th=[ 126], 40.00th=[ 144], 50.00th=[ 165], 60.00th=[ 186], | 70.00th=[ 211], 80.00th=[ 243], 90.00th=[ 321], 95.00th=[ 376], | 99.00th=[ 506], 99.50th=[ 592], 99.90th=[ 735], 99.95th=[ 735], | 99.99th=[ 735] bw ( KiB/s): min= 29, max= 191, per=25.15%, avg=70.68, stdev=33.63, samples=167 iops : min= 1, max= 11, avg= 3.62, stdev= 2.16, samples=167 lat (msec) : 10=2.08%, 20=12.76%, 50=23.96%, 100=15.76%, 250=35.68% lat (msec) : 500=9.24%, 750=0.52% cpu : usr=0.03%, sys=0.98%, ctx=1315, 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=146128: Fri Sep 11 10:04:37 2026 read: IOPS=4, BW=67.7KiB/s (69.3kB/s)(6032KiB/89159msec) clat (msec): min=6, max=440, avg=48.87, stdev=54.50 lat (msec): min=6, max=440, avg=48.87, stdev=54.50 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 23], 40.00th=[ 27], 50.00th=[ 33], 60.00th=[ 39], | 70.00th=[ 48], 80.00th=[ 65], 90.00th=[ 101], 95.00th=[ 155], | 99.00th=[ 300], 99.50th=[ 435], 99.90th=[ 443], 99.95th=[ 443], | 99.99th=[ 443] bw ( KiB/s): min= 30, max= 254, per=32.57%, avg=86.96, stdev=54.13, samples=134 iops : min= 1, max= 15, avg= 4.64, stdev= 3.42, samples=134 write: IOPS=4, BW=70.2KiB/s (71.8kB/s)(6256KiB/89159msec); 0 zone resets clat (msec): min=38, max=781, avg=180.52, stdev=95.93 lat (msec): min=38, max=781, avg=180.52, stdev=95.93 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 65], 10.00th=[ 81], 20.00th=[ 105], | 30.00th=[ 122], 40.00th=[ 144], 50.00th=[ 165], 60.00th=[ 188], | 70.00th=[ 213], 80.00th=[ 241], 90.00th=[ 292], 95.00th=[ 368], | 99.00th=[ 498], 99.50th=[ 642], 99.90th=[ 785], 99.95th=[ 785], | 99.99th=[ 785] bw ( KiB/s): min= 29, max= 192, per=25.94%, avg=72.89, stdev=36.09, samples=167 iops : min= 1, max= 12, avg= 3.77, stdev= 2.34, samples=167 lat (msec) : 10=1.43%, 20=10.03%, 50=24.87%, 100=17.19%, 250=37.11% lat (msec) : 500=8.98%, 750=0.26%, 1000=0.13% cpu : usr=0.02%, sys=0.90%, ctx=1255, 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=268KiB/s (274kB/s), 64.3KiB/s-72.2KiB/s (65.8kB/s-73.9kB/s), io=23.4MiB (24.5MB), run=86703-89396msec WRITE: bw=282KiB/s (289kB/s), 69.6KiB/s-73.2KiB/s (71.2kB/s-74.0kB/s), io=24.6MiB (25.8MB), run=86703-89396msec 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=146165: Fri Sep 11 10:04:52 2026 read: IOPS=1, BW=1512KiB/s (1548kB/s)(7168KiB/4742msec) clat (usec): min=492, max=586271, avg=327213.42, stdev=241144.17 lat (usec): min=493, max=586272, avg=327214.64, stdev=241144.25 clat percentiles (usec): | 1.00th=[ 494], 5.00th=[ 494], 10.00th=[ 494], 20.00th=[ 4555], | 30.00th=[354419], 40.00th=[354419], 50.00th=[354419], 60.00th=[413139], | 70.00th=[413139], 80.00th=[574620], 90.00th=[583009], 95.00th=[583009], | 99.00th=[583009], 99.50th=[583009], 99.90th=[583009], 99.95th=[583009], | 99.99th=[583009] bw ( KiB/s): min= 1868, max= 2015, per=50.12%, avg=1933.60, stdev=59.17, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 write: IOPS=1, BW=1080KiB/s (1106kB/s)(5120KiB/4742msec); 0 zone resets clat (msec): min=130, max=1197, avg=489.83, stdev=446.74 lat (msec): min=130, max=1197, avg=489.89, stdev=446.74 clat percentiles (msec): | 1.00th=[ 131], 5.00th=[ 131], 10.00th=[ 131], 20.00th=[ 131], | 30.00th=[ 148], 40.00th=[ 148], 50.00th=[ 326], 60.00th=[ 326], | 70.00th=[ 651], 80.00th=[ 651], 90.00th=[ 1200], 95.00th=[ 1200], | 99.00th=[ 1200], 99.50th=[ 1200], 99.90th=[ 1200], 99.95th=[ 1200], | 99.99th=[ 1200] bw ( KiB/s): min= 1892, max= 2043, per=36.44%, avg=1968.00, stdev=75.50, samples=3 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=3 lat (usec) : 500=8.33% lat (msec) : 10=8.33%, 250=16.67%, 500=33.33%, 750=25.00%, 2000=8.33% cpu : usr=0.00%, sys=9.64%, ctx=180, 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=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=146166: Fri Sep 11 10:04:52 2026 read: IOPS=0, BW=386KiB/s (395kB/s)(2048KiB/5308msec) clat (msec): min=307, max=392, avg=350.32, stdev=60.10 lat (msec): min=307, max=392, avg=350.32, stdev=60.11 clat percentiles (msec): | 1.00th=[ 309], 5.00th=[ 309], 10.00th=[ 309], 20.00th=[ 309], | 30.00th=[ 309], 40.00th=[ 309], 50.00th=[ 309], 60.00th=[ 393], | 70.00th=[ 393], 80.00th=[ 393], 90.00th=[ 393], 95.00th=[ 393], | 99.00th=[ 393], 99.50th=[ 393], 99.90th=[ 393], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 1872, max= 2043, per=50.74%, avg=1957.50, stdev=120.92, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1929KiB/s (1975kB/s)(10.0MiB/5308msec); 0 zone resets clat (msec): min=191, max=1304, avg=457.68, stdev=338.81 lat (msec): min=191, max=1304, avg=457.97, stdev=338.84 clat percentiles (msec): | 1.00th=[ 192], 5.00th=[ 192], 10.00th=[ 192], 20.00th=[ 203], | 30.00th=[ 205], 40.00th=[ 253], 50.00th=[ 363], 60.00th=[ 384], | 70.00th=[ 481], 80.00th=[ 489], 90.00th=[ 701], 95.00th=[ 1301], | 99.00th=[ 1301], 99.50th=[ 1301], 99.90th=[ 1301], 99.95th=[ 1301], | 99.99th=[ 1301] bw ( KiB/s): min= 1532, max= 2043, per=35.01%, avg=1890.71, stdev=173.45, samples=7 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=7 lat (msec) : 250=25.00%, 500=58.33%, 750=8.33%, 2000=8.33% cpu : usr=0.00%, sys=10.85%, ctx=179, 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=146167: Fri Sep 11 10:04:52 2026 read: IOPS=1, BW=1350KiB/s (1382kB/s)(6144KiB/4551msec) clat (usec): min=1982, max=307193, avg=139326.04, stdev=148311.14 lat (usec): min=1983, max=307195, avg=139327.18, stdev=148311.27 clat percentiles (usec): | 1.00th=[ 1991], 5.00th=[ 1991], 10.00th=[ 1991], 20.00th=[ 2966], | 30.00th=[ 2966], 40.00th=[ 10290], 50.00th=[ 10290], 60.00th=[250610], | 70.00th=[263193], 80.00th=[263193], 90.00th=[308282], 95.00th=[308282], | 99.00th=[308282], 99.50th=[308282], 99.90th=[308282], 99.95th=[308282], | 99.99th=[308282] bw ( KiB/s): min= 2015, max= 6119, per=87.93%, avg=3392.33, stdev=2361.40, samples=3 iops : min= 1, max= 5, avg= 2.33, stdev= 2.31, samples=3 write: IOPS=1, BW=1350KiB/s (1382kB/s)(6144KiB/4551msec); 0 zone resets clat (msec): min=210, max=1627, avg=618.92, stdev=515.69 lat (msec): min=210, max=1627, avg=619.00, stdev=515.69 clat percentiles (msec): | 1.00th=[ 211], 5.00th=[ 211], 10.00th=[ 211], 20.00th=[ 300], | 30.00th=[ 300], 40.00th=[ 443], 50.00th=[ 443], 60.00th=[ 506], | 70.00th=[ 634], 80.00th=[ 634], 90.00th=[ 1620], 95.00th=[ 1620], | 99.00th=[ 1620], 99.50th=[ 1620], 99.90th=[ 1620], 99.95th=[ 1620], | 99.99th=[ 1620] bw ( KiB/s): min= 1868, max= 3813, per=45.19%, avg=2440.75, stdev=918.46, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (msec) : 2=8.33%, 4=8.33%, 20=8.33%, 250=8.33%, 500=41.67% lat (msec) : 750=16.67%, 2000=8.33% cpu : usr=0.00%, sys=7.41%, ctx=128, 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=146168: Fri Sep 11 10:04:52 2026 read: IOPS=1, BW=1089KiB/s (1115kB/s)(5120KiB/4701msec) clat (usec): min=628, max=424290, avg=165463.27, stdev=208722.53 lat (usec): min=628, max=424291, avg=165464.45, stdev=208722.56 clat percentiles (usec): | 1.00th=[ 627], 5.00th=[ 627], 10.00th=[ 627], 20.00th=[ 627], | 30.00th=[ 742], 40.00th=[ 742], 50.00th=[ 42206], 60.00th=[ 42206], | 70.00th=[358613], 80.00th=[358613], 90.00th=[425722], 95.00th=[425722], | 99.00th=[425722], 99.50th=[425722], 99.90th=[425722], 99.95th=[425722], | 99.99th=[425722] bw ( KiB/s): min= 2043, max= 5873, per=100.00%, avg=3958.00, stdev=2708.22, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=1, BW=1525KiB/s (1561kB/s)(7168KiB/4701msec); 0 zone resets clat (msec): min=227, max=1221, avg=553.12, stdev=344.88 lat (msec): min=227, max=1221, avg=553.21, stdev=344.90 clat percentiles (msec): | 1.00th=[ 228], 5.00th=[ 228], 10.00th=[ 228], 20.00th=[ 321], | 30.00th=[ 388], 40.00th=[ 388], 50.00th=[ 409], 60.00th=[ 510], | 70.00th=[ 510], 80.00th=[ 793], 90.00th=[ 1217], 95.00th=[ 1217], | 99.00th=[ 1217], 99.50th=[ 1217], 99.90th=[ 1217], 99.95th=[ 1217], | 99.99th=[ 1217] bw ( KiB/s): min= 1309, max= 4031, per=39.81%, avg=2150.00, stdev=1082.33, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (usec) : 750=16.67% lat (msec) : 50=8.33%, 250=8.33%, 500=41.67%, 750=8.33%, 1000=8.33% lat (msec) : 2000=8.33% cpu : usr=0.00%, sys=8.66%, ctx=101, 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=3858KiB/s (3951kB/s), 386KiB/s-1512KiB/s (395kB/s-1548kB/s), io=20.0MiB (20.0MB), run=4551-5308msec WRITE: bw=5402KiB/s (5531kB/s), 1080KiB/s-1929KiB/s (1106kB/s-1975kB/s), io=28.0MiB (29.4MB), run=4551-5308msec rand-rw: (groupid=0, jobs=1): err= 0: pid=146160: Fri Sep 11 10:04:52 2026 read: IOPS=1, BW=1526KiB/s (1563kB/s)(7168KiB/4697msec) clat (msec): min=94, max=714, avg=293.84, stdev=277.31 lat (msec): min=94, max=714, avg=293.84, stdev=277.31 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 94], 10.00th=[ 94], 20.00th=[ 101], | 30.00th=[ 130], 40.00th=[ 130], 50.00th=[ 150], 60.00th=[ 190], | 70.00th=[ 190], 80.00th=[ 676], 90.00th=[ 718], 95.00th=[ 718], | 99.00th=[ 718], 99.50th=[ 718], 99.90th=[ 718], 99.95th=[ 718], | 99.99th=[ 718] bw ( KiB/s): min= 1996, max= 5180, per=100.00%, avg=3702.00, stdev=1604.20, samples=3 iops : min= 1, max= 5, avg= 3.00, stdev= 2.00, samples=3 write: IOPS=1, BW=1090KiB/s (1116kB/s)(5120KiB/4697msec); 0 zone resets clat (msec): min=208, max=932, avg=508.54, stdev=268.84 lat (msec): min=208, max=937, avg=509.57, stdev=270.67 clat percentiles (msec): | 1.00th=[ 209], 5.00th=[ 209], 10.00th=[ 209], 20.00th=[ 209], | 30.00th=[ 401], 40.00th=[ 401], 50.00th=[ 439], 60.00th=[ 439], | 70.00th=[ 558], 80.00th=[ 558], 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= 1965, max= 2048, per=45.87%, avg=2010.20, stdev=31.70, samples=5 iops : min= 1, max= 2, avg= 1.20, stdev= 0.45, samples=5 lat (msec) : 100=8.33%, 250=41.67%, 500=16.67%, 750=25.00%, 1000=8.33% cpu : usr=0.02%, sys=3.47%, ctx=81, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=146161: Fri Sep 11 10:04:52 2026 read: IOPS=0, BW=321KiB/s (328kB/s)(2048KiB/6387msec) clat (msec): min=126, max=390, avg=258.74, stdev=186.94 lat (msec): min=126, max=390, avg=258.74, stdev=186.94 clat percentiles (msec): | 1.00th=[ 127], 5.00th=[ 127], 10.00th=[ 127], 20.00th=[ 127], | 30.00th=[ 127], 40.00th=[ 127], 50.00th=[ 127], 60.00th=[ 393], | 70.00th=[ 393], 80.00th=[ 393], 90.00th=[ 393], 95.00th=[ 393], | 99.00th=[ 393], 99.50th=[ 393], 99.90th=[ 393], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 1546, max= 2007, per=56.76%, avg=1776.50, stdev=325.98, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1603KiB/s (1642kB/s)(10.0MiB/6387msec); 0 zone resets clat (msec): min=211, max=1345, avg=569.27, stdev=356.17 lat (msec): min=211, max=1345, avg=569.46, stdev=356.24 clat percentiles (msec): | 1.00th=[ 213], 5.00th=[ 213], 10.00th=[ 213], 20.00th=[ 257], | 30.00th=[ 338], 40.00th=[ 384], 50.00th=[ 384], 60.00th=[ 384], | 70.00th=[ 776], 80.00th=[ 785], 90.00th=[ 835], 95.00th=[ 1351], | 99.00th=[ 1351], 99.50th=[ 1351], 99.90th=[ 1351], 99.95th=[ 1351], | 99.99th=[ 1351] bw ( KiB/s): min= 1546, max= 3930, per=49.45%, avg=2167.00, stdev=736.31, samples=8 iops : min= 1, max= 3, avg= 1.38, stdev= 0.74, samples=8 lat (msec) : 250=16.67%, 500=50.00%, 1000=25.00%, 2000=8.33% cpu : usr=0.00%, sys=2.46%, ctx=80, 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=146162: Fri Sep 11 10:04:52 2026 read: IOPS=0, BW=939KiB/s (962kB/s)(6144KiB/6542msec) clat (msec): min=144, max=815, avg=465.95, stdev=285.33 lat (msec): min=144, max=815, avg=465.95, stdev=285.33 clat percentiles (msec): | 1.00th=[ 146], 5.00th=[ 146], 10.00th=[ 146], 20.00th=[ 222], | 30.00th=[ 222], 40.00th=[ 388], 50.00th=[ 388], 60.00th=[ 422], | 70.00th=[ 802], 80.00th=[ 802], 90.00th=[ 818], 95.00th=[ 818], | 99.00th=[ 818], 99.50th=[ 818], 99.90th=[ 818], 99.95th=[ 818], | 99.99th=[ 818] bw ( KiB/s): min= 1715, max= 2048, per=62.78%, avg=1965.00, stdev=141.24, samples=5 iops : min= 1, max= 2, avg= 1.20, stdev= 0.45, samples=5 write: IOPS=0, BW=939KiB/s (962kB/s)(6144KiB/6542msec); 0 zone resets clat (msec): min=242, max=1156, avg=610.69, stdev=405.24 lat (msec): min=242, max=1157, avg=611.11, stdev=405.46 clat percentiles (msec): | 1.00th=[ 243], 5.00th=[ 243], 10.00th=[ 243], 20.00th=[ 334], | 30.00th=[ 334], 40.00th=[ 351], 50.00th=[ 351], 60.00th=[ 493], | 70.00th=[ 1083], 80.00th=[ 1083], 90.00th=[ 1150], 95.00th=[ 1150], | 99.00th=[ 1150], 99.50th=[ 1150], 99.90th=[ 1150], 99.95th=[ 1150], | 99.99th=[ 1150] bw ( KiB/s): min= 1965, max= 3002, per=51.22%, avg=2244.50, stdev=505.79, samples=4 iops : min= 1, max= 2, avg= 1.25, stdev= 0.50, samples=4 lat (msec) : 250=25.00%, 500=41.67%, 1000=16.67%, 2000=16.67% cpu : usr=0.02%, sys=2.35%, 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=146163: Fri Sep 11 10:04:52 2026 read: IOPS=0, BW=948KiB/s (971kB/s)(5120KiB/5399msec) clat (msec): min=110, max=1510, avg=484.40, stdev=588.88 lat (msec): min=110, max=1510, avg=484.40, stdev=588.88 clat percentiles (msec): | 1.00th=[ 111], 5.00th=[ 111], 10.00th=[ 111], 20.00th=[ 111], | 30.00th=[ 161], 40.00th=[ 161], 50.00th=[ 186], 60.00th=[ 186], | 70.00th=[ 456], 80.00th=[ 456], 90.00th=[ 1519], 95.00th=[ 1519], | 99.00th=[ 1519], 99.50th=[ 1519], 99.90th=[ 1519], 99.95th=[ 1519], | 99.99th=[ 1519] bw ( KiB/s): min= 2007, max= 4000, per=85.52%, avg=2676.67, stdev=1146.07, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=1, BW=1328KiB/s (1360kB/s)(7168KiB/5399msec); 0 zone resets clat (msec): min=237, max=623, avg=407.78, stdev=131.26 lat (msec): min=237, max=623, avg=407.91, stdev=131.33 clat percentiles (msec): | 1.00th=[ 239], 5.00th=[ 239], 10.00th=[ 239], 20.00th=[ 326], | 30.00th=[ 368], 40.00th=[ 368], 50.00th=[ 372], 60.00th=[ 393], | 70.00th=[ 393], 80.00th=[ 542], 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= 1580, max= 4071, per=60.79%, avg=2663.80, stdev=1231.76, samples=5 iops : min= 1, max= 3, avg= 1.80, stdev= 1.10, samples=5 lat (msec) : 250=33.33%, 500=41.67%, 750=16.67%, 2000=8.33% cpu : usr=0.00%, sys=1.89%, ctx=54, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=3131KiB/s (3206kB/s), 321KiB/s-1526KiB/s (328kB/s-1563kB/s), io=20.0MiB (20.0MB), run=4697-6542msec WRITE: bw=4383KiB/s (4488kB/s), 939KiB/s-1603KiB/s (962kB/s-1642kB/s), io=28.0MiB (29.4MB), run=4697-6542msec 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=146175: Fri Sep 11 10:05:06 2026 read: IOPS=2, BW=9526KiB/s (9754kB/s)(12.0MiB/1290msec) clat (msec): min=320, max=526, avg=391.90, stdev=117.02 lat (msec): min=320, max=526, avg=391.90, stdev=117.02 clat percentiles (msec): | 1.00th=[ 321], 5.00th=[ 321], 10.00th=[ 321], 20.00th=[ 321], | 30.00th=[ 321], 40.00th=[ 330], 50.00th=[ 330], 60.00th=[ 330], | 70.00th=[ 527], 80.00th=[ 527], 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= 7713, max= 7876, per=100.00%, avg=7794.50, stdev=115.26, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=66.67%, 750=33.33% cpu : usr=0.00%, sys=6.36%, ctx=53, 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=146176: Fri Sep 11 10:05:06 2026 read: IOPS=0, BW=1148KiB/s (1176kB/s)(4096KiB/3568msec) clat (nsec): min=1551.3M, max=1551.3M, avg=1551313933.00, stdev= 0.00 lat (nsec): min=1551.3M, max=1551.3M, avg=1551315955.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1552], 5.00th=[ 1552], 10.00th=[ 1552], 20.00th=[ 1552], | 30.00th=[ 1552], 40.00th=[ 1552], 50.00th=[ 1552], 60.00th=[ 1552], | 70.00th=[ 1552], 80.00th=[ 1552], 90.00th=[ 1552], 95.00th=[ 1552], | 99.00th=[ 1552], 99.50th=[ 1552], 99.90th=[ 1552], 99.95th=[ 1552], | 99.99th=[ 1552] bw ( KiB/s): min= 8078, max= 8078, per=100.00%, avg=8078.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2296KiB/s (2351kB/s)(8192KiB/3568msec); 0 zone resets clat (msec): min=800, max=1149, avg=975.19, stdev=246.77 lat (msec): min=801, max=1149, avg=975.52, stdev=246.71 clat percentiles (msec): | 1.00th=[ 802], 5.00th=[ 802], 10.00th=[ 802], 20.00th=[ 802], | 30.00th=[ 802], 40.00th=[ 802], 50.00th=[ 802], 60.00th=[ 1150], | 70.00th=[ 1150], 80.00th=[ 1150], 90.00th=[ 1150], 95.00th=[ 1150], | 99.00th=[ 1150], 99.50th=[ 1150], 99.90th=[ 1150], 99.95th=[ 1150], | 99.99th=[ 1150] bw ( KiB/s): min= 8015, max= 8015, per=87.28%, avg=8015.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 1000=33.33%, 2000=66.67% cpu : usr=0.00%, sys=3.25%, ctx=44, 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=146177: Fri Sep 11 10:05:06 2026 write: IOPS=1, BW=4239KiB/s (4340kB/s)(12.0MiB/2899msec); 0 zone resets clat (msec): min=677, max=1129, avg=895.75, stdev=226.29 lat (msec): min=678, max=1131, avg=898.24, stdev=226.70 clat percentiles (msec): | 1.00th=[ 676], 5.00th=[ 676], 10.00th=[ 676], 20.00th=[ 676], | 30.00th=[ 676], 40.00th=[ 877], 50.00th=[ 877], 60.00th=[ 877], | 70.00th=[ 1133], 80.00th=[ 1133], 90.00th=[ 1133], 95.00th=[ 1133], | 99.00th=[ 1133], 99.50th=[ 1133], 99.90th=[ 1133], 99.95th=[ 1133], | 99.99th=[ 1133] bw ( KiB/s): min= 7876, max= 8062, per=86.78%, avg=7969.00, stdev=131.52, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=5.24%, ctx=64, 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=146178: Fri Sep 11 10:05:06 2026 write: IOPS=0, BW=4054KiB/s (4151kB/s)(12.0MiB/3031msec); 0 zone resets clat (msec): min=527, max=1806, avg=976.78, stdev=719.54 lat (msec): min=527, max=1806, avg=977.05, stdev=719.58 clat percentiles (msec): | 1.00th=[ 527], 5.00th=[ 527], 10.00th=[ 527], 20.00th=[ 527], | 30.00th=[ 527], 40.00th=[ 600], 50.00th=[ 600], 60.00th=[ 600], | 70.00th=[ 1804], 80.00th=[ 1804], 90.00th=[ 1804], 95.00th=[ 1804], | 99.00th=[ 1804], 99.50th=[ 1804], 99.90th=[ 1804], 99.95th=[ 1804], | 99.99th=[ 1804] bw ( KiB/s): min= 7876, max= 8047, per=86.70%, avg=7961.50, stdev=120.92, 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=0.07%, sys=3.76%, ctx=42, 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=4592KiB/s (4702kB/s), 1148KiB/s-9526KiB/s (1176kB/s-9754kB/s), io=16.0MiB (16.8MB), run=1290-3568msec WRITE: bw=9184KiB/s (9404kB/s), 2296KiB/s-4239KiB/s (2351kB/s-4340kB/s), io=32.0MiB (33.6MB), run=2899-3568msec rand-rw: (groupid=0, jobs=1): err= 0: pid=146181: Fri Sep 11 10:05:07 2026 read: IOPS=1, BW=4256KiB/s (4358kB/s)(12.0MiB/2887msec) clat (msec): min=598, max=1216, avg=962.15, stdev=322.92 lat (msec): min=598, max=1216, avg=962.15, stdev=322.92 clat percentiles (msec): | 1.00th=[ 600], 5.00th=[ 600], 10.00th=[ 600], 20.00th=[ 600], | 30.00th=[ 600], 40.00th=[ 1070], 50.00th=[ 1070], 60.00th=[ 1070], | 70.00th=[ 1217], 80.00th=[ 1217], 90.00th=[ 1217], 95.00th=[ 1217], | 99.00th=[ 1217], 99.50th=[ 1217], 99.90th=[ 1217], 99.95th=[ 1217], | 99.99th=[ 1217] bw ( KiB/s): min= 7585, max= 8110, per=100.00%, avg=7847.50, stdev=371.23, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 2000=66.67% cpu : usr=0.00%, sys=10.77%, ctx=202, 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=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=146182: Fri Sep 11 10:05:07 2026 read: IOPS=0, BW=1330KiB/s (1362kB/s)(4096KiB/3079msec) clat (nsec): min=1022.3M, max=1022.3M, avg=1022310203.00, stdev= 0.00 lat (nsec): min=1022.3M, max=1022.3M, avg=1022311570.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1020], 5.00th=[ 1020], 10.00th=[ 1020], 20.00th=[ 1020], | 30.00th=[ 1020], 40.00th=[ 1020], 50.00th=[ 1020], 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= 7585, max= 7585, per=100.00%, avg=7585.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2661KiB/s (2724kB/s)(8192KiB/3079msec); 0 zone resets clat (msec): min=960, max=1094, avg=1027.66, stdev=94.92 lat (msec): min=960, max=1095, avg=1027.96, stdev=94.90 clat percentiles (msec): | 1.00th=[ 961], 5.00th=[ 961], 10.00th=[ 961], 20.00th=[ 961], | 30.00th=[ 961], 40.00th=[ 961], 50.00th=[ 961], 60.00th=[ 1099], | 70.00th=[ 1099], 80.00th=[ 1099], 90.00th=[ 1099], 95.00th=[ 1099], | 99.00th=[ 1099], 99.50th=[ 1099], 99.90th=[ 1099], 99.95th=[ 1099], | 99.99th=[ 1099] bw ( KiB/s): min= 8031, max= 8031, per=77.28%, avg=8031.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 1000=33.33%, 2000=66.67% cpu : usr=0.00%, sys=4.45%, ctx=112, 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=146183: Fri Sep 11 10:05:07 2026 write: IOPS=0, BW=3897KiB/s (3991kB/s)(12.0MiB/3153msec); 0 zone resets clat (msec): min=359, max=1400, avg=1050.38, stdev=598.25 lat (msec): min=359, max=1400, avg=1050.75, stdev=598.30 clat percentiles (msec): | 1.00th=[ 359], 5.00th=[ 359], 10.00th=[ 359], 20.00th=[ 359], | 30.00th=[ 359], 40.00th=[ 1385], 50.00th=[ 1385], 60.00th=[ 1385], | 70.00th=[ 1401], 80.00th=[ 1401], 90.00th=[ 1401], 95.00th=[ 1401], | 99.00th=[ 1401], 99.50th=[ 1401], 99.90th=[ 1401], 99.95th=[ 1401], | 99.99th=[ 1401] bw ( KiB/s): min= 8110, max= 8110, per=78.04%, avg=8110.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.00%, sys=3.93%, ctx=62, 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 rand-rw: (groupid=0, jobs=1): err= 0: pid=146184: Fri Sep 11 10:05:07 2026 write: IOPS=1, BW=5315KiB/s (5442kB/s)(12.0MiB/2312msec); 0 zone resets clat (msec): min=527, max=894, avg=769.61, stdev=209.55 lat (msec): min=528, max=895, avg=769.92, stdev=209.53 clat percentiles (msec): | 1.00th=[ 527], 5.00th=[ 527], 10.00th=[ 527], 20.00th=[ 527], | 30.00th=[ 527], 40.00th=[ 885], 50.00th=[ 885], 60.00th=[ 885], | 70.00th=[ 894], 80.00th=[ 894], 90.00th=[ 894], 95.00th=[ 894], | 99.00th=[ 894], 99.50th=[ 894], 99.90th=[ 894], 99.95th=[ 894], | 99.99th=[ 894] bw ( KiB/s): min= 7585, max= 8110, per=75.51%, avg=7847.50, stdev=371.23, 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=4.11%, ctx=42, 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=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=5321KiB/s (5449kB/s), 1330KiB/s-4256KiB/s (1362kB/s-4358kB/s), io=16.0MiB (16.8MB), run=2887-3079msec WRITE: bw=10.1MiB/s (10.6MB/s), 2661KiB/s-5315KiB/s (2724kB/s-5442kB/s), io=32.0MiB (33.6MB), run=2312-3153msec