== sanity test 398b: DIO and buffer IO race ============== 10:15:37 (1790950537) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 5.0165 s, 10.0 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=145545: Fri Oct 2 10:17:47 2026 read: IOPS=13, BW=54.1KiB/s (55.4kB/s)(5992KiB/110836msec) clat (usec): min=32, max=768759, avg=36041.13, stdev=36251.67 lat (usec): min=32, max=768760, avg=36042.63, stdev=36251.82 clat percentiles (usec): | 1.00th=[ 49], 5.00th=[ 56], 10.00th=[ 82], 20.00th=[ 16712], | 30.00th=[ 21365], 40.00th=[ 25822], 50.00th=[ 30802], 60.00th=[ 36439], | 70.00th=[ 44303], 80.00th=[ 53740], 90.00th=[ 67634], 95.00th=[ 82314], | 99.00th=[114820], 99.50th=[143655], 99.90th=[666895], 99.95th=[767558], | 99.99th=[767558] bw ( KiB/s): min= 7, max= 126, per=25.50%, avg=54.05, stdev=21.98, samples=217 iops : min= 1, max= 31, avg=12.88, stdev= 5.54, samples=217 write: IOPS=14, BW=56.8KiB/s (58.2kB/s)(6296KiB/110836msec); 0 zone resets clat (usec): min=971, max=471263, avg=35849.31, stdev=38993.26 lat (usec): min=971, max=471264, avg=35852.67, stdev=38994.26 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1237], 10.00th=[ 1745], 20.00th=[ 3785], | 30.00th=[ 7308], 40.00th=[ 15139], 50.00th=[ 26084], 60.00th=[ 35914], | 70.00th=[ 47449], 80.00th=[ 62129], 90.00th=[ 84411], 95.00th=[105382], | 99.00th=[158335], 99.50th=[189793], 99.90th=[429917], 99.95th=[471860], | 99.99th=[471860] bw ( KiB/s): min= 7, max= 119, per=25.58%, avg=56.78, stdev=22.58, samples=217 iops : min= 1, max= 29, avg=13.57, stdev= 5.69, samples=217 lat (usec) : 50=0.78%, 100=4.49%, 250=0.49%, 500=0.07%, 750=0.07% lat (usec) : 1000=0.20% lat (msec) : 2=5.92%, 4=4.88%, 10=7.03%, 20=11.75%, 50=38.51% lat (msec) : 100=21.91%, 250=3.71%, 500=0.13%, 750=0.03%, 1000=0.03% cpu : usr=0.08%, sys=5.85%, ctx=6528, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145546: Fri Oct 2 10:17:47 2026 read: IOPS=13, BW=52.5KiB/s (53.8kB/s)(5940KiB/113036msec) clat (usec): min=34, max=311118, avg=35564.33, stdev=27869.59 lat (usec): min=35, max=311118, avg=35570.55, stdev=27870.00 clat percentiles (usec): | 1.00th=[ 49], 5.00th=[ 57], 10.00th=[ 91], 20.00th=[ 16712], | 30.00th=[ 21890], 40.00th=[ 26084], 50.00th=[ 30802], 60.00th=[ 36439], | 70.00th=[ 43779], 80.00th=[ 53740], 90.00th=[ 67634], 95.00th=[ 80217], | 99.00th=[121111], 99.50th=[156238], 99.90th=[304088], 99.95th=[312476], | 99.99th=[312476] bw ( KiB/s): min= 7, max= 112, per=24.74%, avg=52.46, stdev=20.84, samples=221 iops : min= 1, max= 28, avg=12.48, stdev= 5.28, samples=221 write: IOPS=14, BW=56.2KiB/s (57.5kB/s)(6348KiB/113036msec); 0 zone resets clat (usec): min=993, max=799741, avg=37655.47, stdev=43689.88 lat (usec): min=995, max=799743, avg=37665.08, stdev=43690.11 clat percentiles (usec): | 1.00th=[ 1074], 5.00th=[ 1205], 10.00th=[ 1565], 20.00th=[ 3392], | 30.00th=[ 6915], 40.00th=[ 17171], 50.00th=[ 28967], 60.00th=[ 38011], | 70.00th=[ 48497], 80.00th=[ 63701], 90.00th=[ 88605], 95.00th=[109577], | 99.00th=[158335], 99.50th=[191890], 99.90th=[497026], 99.95th=[801113], | 99.99th=[801113] bw ( KiB/s): min= 7, max= 120, per=25.10%, avg=55.72, stdev=21.29, samples=222 iops : min= 1, max= 30, avg=13.31, stdev= 5.37, samples=222 lat (usec) : 50=0.62%, 100=4.43%, 250=0.62%, 500=0.13%, 750=0.07% lat (usec) : 1000=0.07% lat (msec) : 2=7.06%, 4=4.36%, 10=6.71%, 20=10.97%, 50=38.87% lat (msec) : 100=21.45%, 250=4.49%, 500=0.13%, 1000=0.03% cpu : usr=0.07%, sys=5.67%, ctx=6567, 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=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=145547: Fri Oct 2 10:17:47 2026 read: IOPS=13, BW=53.4KiB/s (54.7kB/s)(6028KiB/112795msec) clat (usec): min=32, max=771501, avg=34310.28, stdev=32456.32 lat (usec): min=32, max=771502, avg=34312.65, stdev=32456.01 clat percentiles (usec): | 1.00th=[ 49], 5.00th=[ 56], 10.00th=[ 83], 20.00th=[ 15270], | 30.00th=[ 20055], 40.00th=[ 24249], 50.00th=[ 28967], 60.00th=[ 34341], | 70.00th=[ 41157], 80.00th=[ 50594], 90.00th=[ 67634], 95.00th=[ 80217], | 99.00th=[113771], 99.50th=[143655], 99.90th=[278922], 99.95th=[767558], | 99.99th=[767558] bw ( KiB/s): min= 7, max= 128, per=25.23%, avg=53.49, stdev=24.11, samples=221 iops : min= 1, max= 32, avg=12.74, stdev= 6.08, samples=221 write: IOPS=13, BW=55.5KiB/s (56.8kB/s)(6260KiB/112795msec); 0 zone resets clat (usec): min=934, max=428172, avg=38775.50, stdev=40393.86 lat (usec): min=935, max=428174, avg=38781.02, stdev=40393.50 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1205], 10.00th=[ 1647], 20.00th=[ 3720], | 30.00th=[ 7701], 40.00th=[ 19268], 50.00th=[ 28967], 60.00th=[ 40633], | 70.00th=[ 52691], 80.00th=[ 65274], 90.00th=[ 89654], 95.00th=[111674], | 99.00th=[166724], 99.50th=[200279], 99.90th=[408945], 99.95th=[429917], | 99.99th=[429917] bw ( KiB/s): min= 7, max= 134, per=24.85%, avg=55.17, stdev=21.24, samples=222 iops : min= 1, max= 33, avg=13.18, stdev= 5.35, samples=222 lat (usec) : 50=0.78%, 100=4.69%, 250=0.39%, 500=0.16%, 750=0.03% lat (usec) : 1000=0.07% lat (msec) : 2=6.58%, 4=4.17%, 10=6.80%, 20=11.78%, 50=37.96% lat (msec) : 100=21.91%, 250=4.52%, 500=0.13%, 1000=0.03% cpu : usr=0.06%, sys=5.64%, ctx=6510, 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=145548: Fri Oct 2 10:17:47 2026 read: IOPS=13, BW=54.2KiB/s (55.5kB/s)(6052KiB/111580msec) clat (usec): min=27, max=308007, avg=35382.54, stdev=28643.20 lat (usec): min=27, max=308008, avg=35385.27, stdev=28642.12 clat percentiles (usec): | 1.00th=[ 47], 5.00th=[ 58], 10.00th=[ 85], 20.00th=[ 16188], | 30.00th=[ 20841], 40.00th=[ 25035], 50.00th=[ 29230], 60.00th=[ 36439], | 70.00th=[ 44303], 80.00th=[ 53216], 90.00th=[ 68682], 95.00th=[ 82314], | 99.00th=[128451], 99.50th=[162530], 99.90th=[265290], 99.95th=[308282], | 99.99th=[308282] bw ( KiB/s): min= 15, max= 128, per=25.74%, avg=54.56, stdev=21.45, samples=217 iops : min= 3, max= 32, avg=13.02, stdev= 5.41, samples=217 write: IOPS=13, BW=55.9KiB/s (57.2kB/s)(6236KiB/111580msec); 0 zone resets clat (usec): min=976, max=800196, avg=36942.05, stdev=42491.11 lat (usec): min=978, max=800198, avg=36944.62, stdev=42491.37 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1221], 10.00th=[ 1729], 20.00th=[ 3556], | 30.00th=[ 6456], 40.00th=[ 17433], 50.00th=[ 27395], 60.00th=[ 38011], | 70.00th=[ 50070], 80.00th=[ 63701], 90.00th=[ 84411], 95.00th=[106431], | 99.00th=[149947], 99.50th=[185598], 99.90th=[392168], 99.95th=[801113], | 99.99th=[801113] bw ( KiB/s): min= 7, max= 144, per=25.04%, avg=55.58, stdev=23.15, samples=219 iops : min= 1, max= 36, avg=13.27, stdev= 5.84, samples=219 lat (usec) : 50=0.68%, 100=4.82%, 250=0.59%, 500=0.20%, 750=0.16% lat (usec) : 1000=0.16% lat (msec) : 2=5.86%, 4=5.14%, 10=7.13%, 20=10.29%, 50=38.35% lat (msec) : 100=22.36%, 250=4.07%, 500=0.16%, 1000=0.03% cpu : usr=0.08%, sys=5.79%, ctx=6536, 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=212KiB/s (218kB/s), 52.5KiB/s-54.2KiB/s (53.8kB/s-55.5kB/s), io=23.4MiB (24.6MB), run=110836-113036msec WRITE: bw=222KiB/s (228kB/s), 55.5KiB/s-56.8KiB/s (56.8kB/s-58.2kB/s), io=24.6MiB (25.7MB), run=110836-113036msec fio: pid=145551, err=5/file:backend.c:481, func=full resid, error=Input/output error rand-rw: (groupid=0, jobs=1): err= 0: pid=145550: Fri Oct 2 10:19:58 2026 read: IOPS=6, BW=24.7KiB/s (25.3kB/s)(5992KiB/242682msec) clat (msec): min=5, max=817, avg=30.89, stdev=35.93 lat (msec): min=5, max=817, avg=30.89, stdev=35.93 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 15], 40.00th=[ 18], 50.00th=[ 21], 60.00th=[ 24], | 70.00th=[ 30], 80.00th=[ 41], 90.00th=[ 66], 95.00th=[ 90], | 99.00th=[ 153], 99.50th=[ 180], 99.90th=[ 388], 99.95th=[ 818], | 99.99th=[ 818] bw ( KiB/s): min= 7, max= 95, per=27.83%, avg=27.00, stdev=17.60, samples=430 iops : min= 1, max= 23, avg= 6.15, stdev= 4.44, samples=430 write: IOPS=6, BW=25.9KiB/s (26.6kB/s)(6296KiB/242682msec); 0 zone resets clat (msec): min=39, max=784, avg=124.58, stdev=58.60 lat (msec): min=39, max=784, avg=124.58, stdev=58.60 clat percentiles (msec): | 1.00th=[ 53], 5.00th=[ 61], 10.00th=[ 69], 20.00th=[ 79], | 30.00th=[ 90], 40.00th=[ 101], 50.00th=[ 110], 60.00th=[ 124], | 70.00th=[ 140], 80.00th=[ 163], 90.00th=[ 201], 95.00th=[ 236], | 99.00th=[ 300], 99.50th=[ 338], 99.90th=[ 489], 99.95th=[ 785], | 99.99th=[ 785] bw ( KiB/s): min= 7, max= 55, per=25.20%, avg=25.45, stdev=11.06, samples=478 iops : min= 1, max= 13, avg= 5.77, stdev= 2.81, samples=478 lat (msec) : 10=3.71%, 20=20.51%, 50=17.58%, 100=25.68%, 250=30.53% lat (msec) : 500=1.92%, 1000=0.07% cpu : usr=0.04%, sys=1.23%, ctx=5309, 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= 5 (file:backend.c:481, func=full resid, error=Input/output error): pid=145551: Fri Oct 2 10:19:58 2026 read: IOPS=6, BW=24.3KiB/s (24.9kB/s)(5676KiB/233296msec) clat (msec): min=5, max=784, avg=31.30, stdev=38.23 lat (msec): min=5, max=784, avg=31.31, stdev=38.23 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 18], 50.00th=[ 21], 60.00th=[ 24], | 70.00th=[ 31], 80.00th=[ 42], 90.00th=[ 65], 95.00th=[ 89], | 99.00th=[ 144], 99.50th=[ 182], 99.90th=[ 567], 99.95th=[ 785], | 99.99th=[ 785] bw ( KiB/s): min= 7, max= 95, per=27.77%, avg=26.94, stdev=17.80, samples=408 iops : min= 1, max= 23, avg= 6.14, stdev= 4.46, samples=408 write: IOPS=6, BW=25.6KiB/s (26.2kB/s)(5980KiB/233296msec); 0 zone resets clat (msec): min=37, max=785, avg=126.07, stdev=59.18 lat (msec): min=37, max=785, avg=126.07, stdev=59.18 clat percentiles (msec): | 1.00th=[ 51], 5.00th=[ 62], 10.00th=[ 70], 20.00th=[ 82], | 30.00th=[ 91], 40.00th=[ 102], 50.00th=[ 111], 60.00th=[ 124], | 70.00th=[ 140], 80.00th=[ 165], 90.00th=[ 205], 95.00th=[ 239], | 99.00th=[ 305], 99.50th=[ 334], 99.90th=[ 651], 99.95th=[ 785], | 99.99th=[ 785] bw ( KiB/s): min= 7, max= 55, per=24.98%, avg=25.23, stdev=10.86, samples=459 iops : min= 1, max= 13, avg= 5.71, stdev= 2.76, samples=459 lat (msec) : 10=3.67%, 20=20.31%, 50=17.39%, 100=25.32%, 250=31.25% lat (msec) : 500=1.89%, 750=0.07%, 1000=0.07% cpu : usr=0.05%, sys=1.21%, ctx=4953, majf=0, minf=19 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=1420,1495,0,0 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=145552: Fri Oct 2 10:19:58 2026 read: IOPS=6, BW=24.7KiB/s (25.3kB/s)(6028KiB/243866msec) clat (msec): min=5, max=559, avg=32.21, stdev=33.14 lat (msec): min=5, max=559, avg=32.21, stdev=33.14 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 18], 50.00th=[ 21], 60.00th=[ 26], | 70.00th=[ 31], 80.00th=[ 45], 90.00th=[ 70], 95.00th=[ 94], | 99.00th=[ 142], 99.50th=[ 163], 99.90th=[ 447], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 7, max= 112, per=27.39%, avg=26.56, stdev=18.07, samples=440 iops : min= 1, max= 28, avg= 6.05, stdev= 4.55, samples=440 write: IOPS=6, BW=25.7KiB/s (26.3kB/s)(6260KiB/243866msec); 0 zone resets clat (msec): min=36, max=934, avg=124.61, stdev=61.73 lat (msec): min=36, max=934, avg=124.62, stdev=61.73 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 61], 10.00th=[ 68], 20.00th=[ 81], | 30.00th=[ 91], 40.00th=[ 99], 50.00th=[ 109], 60.00th=[ 123], | 70.00th=[ 140], 80.00th=[ 165], 90.00th=[ 201], 95.00th=[ 234], | 99.00th=[ 309], 99.50th=[ 368], 99.90th=[ 785], 99.95th=[ 936], | 99.99th=[ 936] bw ( KiB/s): min= 7, max= 56, per=25.11%, avg=25.36, stdev=11.40, samples=478 iops : min= 1, max= 14, avg= 5.74, stdev= 2.90, samples=478 lat (msec) : 10=3.29%, 20=20.12%, 50=17.61%, 100=27.21%, 250=30.08% lat (msec) : 500=1.56%, 750=0.07%, 1000=0.07% cpu : usr=0.04%, sys=1.25%, ctx=5332, 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=145553: Fri Oct 2 10:19:58 2026 read: IOPS=6, BW=24.9KiB/s (25.5kB/s)(6052KiB/243309msec) clat (msec): min=5, max=318, avg=31.20, stdev=29.98 lat (msec): min=5, max=318, avg=31.20, stdev=29.98 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 15], 40.00th=[ 18], 50.00th=[ 21], 60.00th=[ 25], | 70.00th=[ 31], 80.00th=[ 43], 90.00th=[ 68], 95.00th=[ 91], | 99.00th=[ 146], 99.50th=[ 192], 99.90th=[ 236], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 7, max= 119, per=28.22%, avg=27.38, stdev=17.94, samples=429 iops : min= 1, max= 29, avg= 6.24, stdev= 4.52, samples=429 write: IOPS=6, BW=25.6KiB/s (26.2kB/s)(6236KiB/243309msec); 0 zone resets clat (msec): min=36, max=935, avg=125.53, stdev=61.02 lat (msec): min=36, max=935, avg=125.54, stdev=61.02 clat percentiles (msec): | 1.00th=[ 51], 5.00th=[ 62], 10.00th=[ 70], 20.00th=[ 81], | 30.00th=[ 91], 40.00th=[ 101], 50.00th=[ 110], 60.00th=[ 125], | 70.00th=[ 142], 80.00th=[ 165], 90.00th=[ 203], 95.00th=[ 230], | 99.00th=[ 296], 99.50th=[ 338], 99.90th=[ 760], 99.95th=[ 936], | 99.99th=[ 936] bw ( KiB/s): min= 7, max= 56, per=24.97%, avg=25.22, stdev=10.84, samples=479 iops : min= 1, max= 14, avg= 5.71, stdev= 2.76, samples=479 lat (msec) : 10=3.74%, 20=19.82%, 50=17.90%, 100=25.98%, 250=31.15% lat (msec) : 500=1.33%, 1000=0.07% cpu : usr=0.04%, sys=1.21%, ctx=5430, 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), 24.3KiB/s-24.9KiB/s (24.9kB/s-25.5kB/s), io=23.2MiB (24.3MB), run=233296-243866msec WRITE: bw=102KiB/s (104kB/s), 25.6KiB/s-25.9KiB/s (26.2kB/s-26.6kB/s), io=24.2MiB (25.4MB), run=233296-243866msec 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=145606: Fri Oct 2 10:20:30 2026 read: IOPS=16, BW=262KiB/s (269kB/s)(5920KiB/22565msec) clat (usec): min=36, max=171643, avg=29711.15, stdev=28684.08 lat (usec): min=36, max=171644, avg=29712.71, stdev=28683.66 clat percentiles (usec): | 1.00th=[ 39], 5.00th=[ 50], 10.00th=[ 55], 20.00th=[ 68], | 30.00th=[ 343], 40.00th=[ 21365], 50.00th=[ 27395], 60.00th=[ 33817], | 70.00th=[ 40633], 80.00th=[ 50070], 90.00th=[ 64226], 95.00th=[ 78119], | 99.00th=[147850], 99.50th=[158335], 99.90th=[170918], 99.95th=[170918], | 99.99th=[170918] bw ( KiB/s): min= 126, max= 568, per=25.35%, avg=259.84, stdev=94.63, samples=44 iops : min= 7, max= 35, avg=15.50, stdev= 6.01, samples=44 write: IOPS=17, BW=282KiB/s (289kB/s)(6368KiB/22565msec); 0 zone resets clat (usec): min=1343, max=159511, avg=28874.10, stdev=31379.97 lat (usec): min=1343, max=159514, avg=28886.75, stdev=31393.94 clat percentiles (usec): | 1.00th=[ 1434], 5.00th=[ 1876], 10.00th=[ 2606], 20.00th=[ 4359], | 30.00th=[ 6587], 40.00th=[ 9503], 50.00th=[ 15926], 60.00th=[ 25560], | 70.00th=[ 36439], 80.00th=[ 51643], 90.00th=[ 74974], 95.00th=[ 91751], | 99.00th=[149947], 99.50th=[154141], 99.90th=[160433], 99.95th=[160433], | 99.99th=[160433] bw ( KiB/s): min= 95, max= 510, per=26.13%, avg=281.68, stdev=108.05, samples=44 iops : min= 5, max= 31, avg=16.86, stdev= 6.74, samples=44 lat (usec) : 50=2.60%, 100=10.03%, 250=1.30%, 500=0.78%, 750=0.26% lat (msec) : 2=3.12%, 4=6.77%, 10=11.85%, 20=10.68%, 50=32.03% lat (msec) : 100=17.71%, 250=2.86% cpu : usr=0.06%, sys=6.61%, ctx=1400, 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=145607: Fri Oct 2 10:20:30 2026 read: IOPS=15, BW=246KiB/s (252kB/s)(5744KiB/23364msec) clat (usec): min=33, max=116989, avg=29768.92, stdev=25157.23 lat (usec): min=33, max=116989, avg=29771.71, stdev=25155.15 clat percentiles (usec): | 1.00th=[ 40], 5.00th=[ 55], 10.00th=[ 60], 20.00th=[ 87], | 30.00th=[ 15401], 40.00th=[ 23462], 50.00th=[ 28181], 60.00th=[ 33817], | 70.00th=[ 41157], 80.00th=[ 49546], 90.00th=[ 63701], 95.00th=[ 79168], | 99.00th=[ 95945], 99.50th=[112722], 99.90th=[116917], 99.95th=[116917], | 99.99th=[116917] bw ( KiB/s): min= 30, max= 469, per=24.35%, avg=249.58, stdev=87.67, samples=45 iops : min= 1, max= 29, avg=14.87, stdev= 5.57, samples=45 write: IOPS=17, BW=280KiB/s (287kB/s)(6544KiB/23364msec); 0 zone resets clat (usec): min=1322, max=226098, avg=30336.29, stdev=35574.89 lat (usec): min=1324, max=226099, avg=30340.10, stdev=35575.56 clat percentiles (usec): | 1.00th=[ 1483], 5.00th=[ 1827], 10.00th=[ 2606], 20.00th=[ 4555], | 30.00th=[ 6521], 40.00th=[ 8586], 50.00th=[ 15664], 60.00th=[ 27657], | 70.00th=[ 39584], 80.00th=[ 51119], 90.00th=[ 74974], 95.00th=[100140], | 99.00th=[166724], 99.50th=[202376], 99.90th=[225444], 99.95th=[225444], | 99.99th=[225444] bw ( KiB/s): min= 30, max= 508, per=25.79%, avg=278.02, stdev=106.50, samples=46 iops : min= 1, max= 31, avg=16.65, stdev= 6.75, samples=46 lat (usec) : 50=1.82%, 100=8.46%, 250=1.30%, 500=0.65%, 1000=0.26% lat (msec) : 2=3.65%, 4=5.73%, 10=14.97%, 20=7.55%, 50=35.55% lat (msec) : 100=17.19%, 250=2.86% cpu : usr=0.06%, sys=6.74%, ctx=1353, 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=145609: Fri Oct 2 10:20:30 2026 read: IOPS=17, BW=275KiB/s (281kB/s)(6256KiB/22783msec) clat (usec): min=33, max=119786, avg=29269.62, stdev=25729.84 lat (usec): min=33, max=119788, avg=29277.76, stdev=25737.36 clat percentiles (usec): | 1.00th=[ 40], 5.00th=[ 53], 10.00th=[ 58], 20.00th=[ 76], | 30.00th=[ 2737], 40.00th=[ 22676], 50.00th=[ 28443], 60.00th=[ 34341], | 70.00th=[ 41681], 80.00th=[ 48497], 90.00th=[ 63177], 95.00th=[ 74974], | 99.00th=[103285], 99.50th=[119014], 99.90th=[120062], 99.95th=[120062], | 99.99th=[120062] bw ( KiB/s): min= 127, max= 475, per=26.82%, avg=274.87, stdev=89.07, samples=45 iops : min= 7, max= 29, avg=16.47, stdev= 5.53, samples=45 write: IOPS=16, BW=265KiB/s (271kB/s)(6032KiB/22783msec); 0 zone resets clat (usec): min=1302, max=179123, avg=29415.98, stdev=31043.38 lat (usec): min=1303, max=179125, avg=29420.14, stdev=31042.90 clat percentiles (usec): | 1.00th=[ 1418], 5.00th=[ 1696], 10.00th=[ 2147], 20.00th=[ 4293], | 30.00th=[ 5997], 40.00th=[ 9896], 50.00th=[ 16909], 60.00th=[ 30016], | 70.00th=[ 40109], 80.00th=[ 53740], 90.00th=[ 68682], 95.00th=[ 93848], | 99.00th=[145753], 99.50th=[162530], 99.90th=[179307], 99.95th=[179307], | 99.99th=[179307] bw ( KiB/s): min= 94, max= 447, per=24.33%, avg=262.24, stdev=86.65, samples=45 iops : min= 5, max= 27, avg=15.67, stdev= 5.49, samples=45 lat (usec) : 50=2.21%, 100=10.94%, 250=1.30%, 500=0.13%, 750=0.13% lat (usec) : 1000=0.13% lat (msec) : 2=4.69%, 4=5.08%, 10=10.81%, 20=9.51%, 50=35.29% lat (msec) : 100=17.97%, 250=1.82% cpu : usr=0.08%, sys=6.75%, ctx=1416, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145611: Fri Oct 2 10:20:30 2026 read: IOPS=16, BW=266KiB/s (272kB/s)(6032KiB/22680msec) clat (usec): min=30, max=143939, avg=28424.69, stdev=28290.68 lat (usec): min=30, max=143941, avg=28425.69, stdev=28290.69 clat percentiles (usec): | 1.00th=[ 37], 5.00th=[ 45], 10.00th=[ 56], 20.00th=[ 69], | 30.00th=[ 117], 40.00th=[ 16909], 50.00th=[ 25297], 60.00th=[ 32637], | 70.00th=[ 40109], 80.00th=[ 53216], 90.00th=[ 67634], 95.00th=[ 85459], | 99.00th=[105382], 99.50th=[123208], 99.90th=[143655], 99.95th=[143655], | 99.99th=[143655] bw ( KiB/s): min= 63, max= 447, per=26.57%, avg=272.37, stdev=93.25, samples=43 iops : min= 3, max= 27, avg=16.28, stdev= 5.88, samples=43 write: IOPS=17, BW=276KiB/s (282kB/s)(6256KiB/22680msec); 0 zone resets clat (usec): min=1312, max=187620, avg=29825.03, stdev=32771.34 lat (usec): min=1314, max=187622, avg=29830.31, stdev=32773.87 clat percentiles (usec): | 1.00th=[ 1385], 5.00th=[ 1663], 10.00th=[ 2442], 20.00th=[ 4113], | 30.00th=[ 5866], 40.00th=[ 9372], 50.00th=[ 16319], 60.00th=[ 24511], | 70.00th=[ 40109], 80.00th=[ 56886], 90.00th=[ 78119], 95.00th=[ 94897], | 99.00th=[137364], 99.50th=[177210], 99.90th=[187696], 99.95th=[187696], | 99.99th=[187696] bw ( KiB/s): min= 89, max= 480, per=25.55%, avg=275.43, stdev=91.74, samples=44 iops : min= 5, max= 30, avg=16.48, stdev= 5.82, samples=44 lat (usec) : 50=2.99%, 100=11.07%, 250=1.56%, 500=1.04%, 1000=0.13% lat (msec) : 2=4.30%, 4=6.38%, 10=10.81%, 20=11.07%, 50=27.86% lat (msec) : 100=20.05%, 250=2.73% cpu : usr=0.06%, sys=6.57%, ctx=1361, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=1025KiB/s (1050kB/s), 246KiB/s-275KiB/s (252kB/s-281kB/s), io=23.4MiB (24.5MB), run=22565-23364msec WRITE: bw=1079KiB/s (1104kB/s), 265KiB/s-282KiB/s (271kB/s-289kB/s), io=24.6MiB (25.8MB), run=22565-23364msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145608: Fri Oct 2 10:21:12 2026 read: IOPS=5, BW=92.0KiB/s (94.2kB/s)(5920KiB/64330msec) clat (msec): min=6, max=244, avg=32.90, stdev=31.26 lat (msec): min=6, max=244, avg=32.90, stdev=31.26 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 19], 50.00th=[ 22], 60.00th=[ 26], | 70.00th=[ 32], 80.00th=[ 42], 90.00th=[ 73], 95.00th=[ 94], | 99.00th=[ 161], 99.50th=[ 228], 99.90th=[ 245], 99.95th=[ 245], | 99.99th=[ 245] bw ( KiB/s): min= 30, max= 410, per=27.23%, avg=101.29, stdev=61.92, samples=115 iops : min= 1, max= 25, avg= 5.59, stdev= 3.93, samples=115 write: IOPS=6, BW=98.0KiB/s (101kB/s)(6368KiB/64330msec); 0 zone resets clat (msec): min=35, max=391, avg=130.29, stdev=57.02 lat (msec): min=35, max=391, avg=130.29, stdev=57.02 clat percentiles (msec): | 1.00th=[ 45], 5.00th=[ 61], 10.00th=[ 70], 20.00th=[ 85], | 30.00th=[ 95], 40.00th=[ 107], 50.00th=[ 118], 60.00th=[ 131], | 70.00th=[ 148], 80.00th=[ 167], 90.00th=[ 209], 95.00th=[ 243], | 99.00th=[ 317], 99.50th=[ 355], 99.90th=[ 393], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 31, max= 191, per=26.00%, avg=101.67, stdev=39.58, samples=123 iops : min= 1, max= 11, avg= 5.60, stdev= 2.52, samples=123 lat (msec) : 10=2.21%, 20=19.14%, 50=19.53%, 100=22.92%, 250=33.98% lat (msec) : 500=2.21% cpu : usr=0.04%, sys=1.32%, ctx=1275, 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=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=145610: Fri Oct 2 10:21:12 2026 read: IOPS=5, BW=89.4KiB/s (91.5kB/s)(5744KiB/64272msec) clat (msec): min=5, max=322, avg=31.83, stdev=31.37 lat (msec): min=5, max=322, avg=31.83, stdev=31.37 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 22], 60.00th=[ 26], | 70.00th=[ 30], 80.00th=[ 42], 90.00th=[ 66], 95.00th=[ 93], | 99.00th=[ 163], 99.50th=[ 213], 99.90th=[ 321], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 30, max= 287, per=27.47%, avg=102.20, stdev=61.70, samples=110 iops : min= 1, max= 17, avg= 5.64, stdev= 3.91, samples=110 write: IOPS=6, BW=102KiB/s (104kB/s)(6544KiB/64272msec); 0 zone resets clat (msec): min=46, max=425, avg=128.69, stdev=57.68 lat (msec): min=46, max=425, avg=128.69, stdev=57.68 clat percentiles (msec): | 1.00th=[ 53], 5.00th=[ 64], 10.00th=[ 70], 20.00th=[ 82], | 30.00th=[ 94], 40.00th=[ 106], 50.00th=[ 114], 60.00th=[ 127], | 70.00th=[ 144], 80.00th=[ 176], 90.00th=[ 209], 95.00th=[ 245], | 99.00th=[ 305], 99.50th=[ 313], 99.90th=[ 426], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 31, max= 192, per=25.95%, avg=101.47, stdev=41.79, samples=127 iops : min= 1, max= 12, avg= 5.58, stdev= 2.67, samples=127 lat (msec) : 10=2.34%, 20=17.97%, 50=18.88%, 100=25.26%, 250=33.46% lat (msec) : 500=2.08% cpu : usr=0.04%, sys=1.35%, ctx=1315, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145612: Fri Oct 2 10:21:12 2026 read: IOPS=6, BW=101KiB/s (104kB/s)(6256KiB/61654msec) clat (msec): min=6, max=312, avg=34.21, stdev=33.05 lat (msec): min=6, max=312, avg=34.22, stdev=33.05 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 16], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 24], 60.00th=[ 28], | 70.00th=[ 32], 80.00th=[ 40], 90.00th=[ 75], 95.00th=[ 108], | 99.00th=[ 153], 99.50th=[ 230], 99.90th=[ 313], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 31, max= 411, per=29.72%, avg=110.55, stdev=77.75, samples=112 iops : min= 1, max= 25, avg= 6.16, stdev= 4.91, samples=112 write: IOPS=6, BW=97.8KiB/s (100kB/s)(6032KiB/61654msec); 0 zone resets clat (msec): min=46, max=375, avg=127.33, stdev=52.46 lat (msec): min=46, max=375, avg=127.33, stdev=52.46 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 63], 10.00th=[ 72], 20.00th=[ 85], | 30.00th=[ 95], 40.00th=[ 104], 50.00th=[ 117], 60.00th=[ 128], | 70.00th=[ 144], 80.00th=[ 167], 90.00th=[ 201], 95.00th=[ 226], | 99.00th=[ 292], 99.50th=[ 355], 99.90th=[ 376], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 29, max= 191, per=24.87%, avg=97.25, stdev=39.04, samples=122 iops : min= 1, max= 11, avg= 5.31, stdev= 2.47, samples=122 lat (msec) : 10=1.04%, 20=19.01%, 50=24.48%, 100=21.35%, 250=32.29% lat (msec) : 500=1.82% cpu : usr=0.05%, sys=1.36%, ctx=1330, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145613: Fri Oct 2 10:21:12 2026 read: IOPS=5, BW=94.4KiB/s (96.6kB/s)(6032KiB/63915msec) clat (msec): min=6, max=325, avg=34.93, stdev=38.15 lat (msec): min=6, max=325, avg=34.93, stdev=38.15 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 23], 60.00th=[ 27], | 70.00th=[ 32], 80.00th=[ 42], 90.00th=[ 73], 95.00th=[ 95], | 99.00th=[ 259], 99.50th=[ 313], 99.90th=[ 326], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 31, max= 316, per=28.17%, avg=104.79, stdev=61.51, samples=112 iops : min= 1, max= 19, avg= 5.79, stdev= 3.87, samples=112 write: IOPS=6, BW=97.9KiB/s (100kB/s)(6256KiB/63915msec); 0 zone resets clat (msec): min=45, max=311, avg=129.64, stdev=49.54 lat (msec): min=45, max=311, avg=129.65, stdev=49.54 clat percentiles (msec): | 1.00th=[ 52], 5.00th=[ 66], 10.00th=[ 77], 20.00th=[ 88], | 30.00th=[ 99], 40.00th=[ 107], 50.00th=[ 117], 60.00th=[ 132], | 70.00th=[ 153], 80.00th=[ 174], 90.00th=[ 203], 95.00th=[ 224], | 99.00th=[ 279], 99.50th=[ 288], 99.90th=[ 313], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 31, max= 190, per=25.33%, avg=99.02, stdev=36.51, samples=124 iops : min= 1, max= 11, avg= 5.43, stdev= 2.35, samples=124 lat (msec) : 10=1.17%, 20=17.84%, 50=22.27%, 100=21.61%, 250=35.68% lat (msec) : 500=1.43% cpu : usr=0.04%, sys=1.19%, ctx=1301, 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=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=372KiB/s (381kB/s), 89.4KiB/s-101KiB/s (91.5kB/s-104kB/s), io=23.4MiB (24.5MB), run=61654-64330msec WRITE: bw=392KiB/s (401kB/s), 97.8KiB/s-102KiB/s (100kB/s-104kB/s), io=24.6MiB (25.8MB), run=61654-64330msec 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=145628: Fri Oct 2 10:21:27 2026 read: IOPS=2, BW=2218KiB/s (2271kB/s)(7168KiB/3232msec) clat (usec): min=1687, max=377389, avg=228228.80, stdev=131632.37 lat (usec): min=1689, max=377391, avg=228230.13, stdev=131632.46 clat percentiles (usec): | 1.00th=[ 1696], 5.00th=[ 1696], 10.00th=[ 1696], 20.00th=[128451], | 30.00th=[179307], 40.00th=[179307], 50.00th=[287310], 60.00th=[291505], | 70.00th=[291505], 80.00th=[333448], 90.00th=[375391], 95.00th=[375391], | 99.00th=[375391], 99.50th=[375391], 99.90th=[375391], 99.95th=[375391], | 99.99th=[375391] bw ( KiB/s): min= 1678, max= 3330, per=52.75%, avg=2264.00, stdev=729.41, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 write: IOPS=1, BW=1584KiB/s (1622kB/s)(5120KiB/3232msec); 0 zone resets clat (msec): min=232, max=424, avg=299.37, stdev=74.04 lat (msec): min=232, max=424, avg=299.45, stdev=74.01 clat percentiles (msec): | 1.00th=[ 232], 5.00th=[ 232], 10.00th=[ 232], 20.00th=[ 232], | 30.00th=[ 257], 40.00th=[ 257], 50.00th=[ 292], 60.00th=[ 292], | 70.00th=[ 292], 80.00th=[ 292], 90.00th=[ 426], 95.00th=[ 426], | 99.00th=[ 426], 99.50th=[ 426], 99.90th=[ 426], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 2000, max= 3357, per=41.08%, avg=2468.33, stdev=769.98, samples=3 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=3 lat (msec) : 2=8.33%, 250=25.00%, 500=66.67% cpu : usr=0.00%, sys=13.92%, ctx=220, 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=145629: Fri Oct 2 10:21:27 2026 read: IOPS=0, BW=429KiB/s (440kB/s)(2048KiB/4771msec) clat (usec): min=1575, max=302191, avg=151883.78, stdev=212567.81 lat (usec): min=1576, max=302194, avg=151885.83, stdev=212569.00 clat percentiles (usec): | 1.00th=[ 1582], 5.00th=[ 1582], 10.00th=[ 1582], 20.00th=[ 1582], | 30.00th=[ 1582], 40.00th=[ 1582], 50.00th=[ 1582], 60.00th=[304088], | 70.00th=[304088], 80.00th=[304088], 90.00th=[304088], 95.00th=[304088], | 99.00th=[304088], 99.50th=[304088], 99.90th=[304088], 99.95th=[304088], | 99.99th=[304088] bw ( KiB/s): min= 1625, max= 1961, per=41.78%, avg=1793.00, stdev=237.59, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2146KiB/s (2198kB/s)(10.0MiB/4771msec); 0 zone resets clat (msec): min=152, max=1176, avg=424.99, stdev=293.84 lat (msec): min=152, max=1179, avg=425.62, stdev=294.84 clat percentiles (msec): | 1.00th=[ 153], 5.00th=[ 153], 10.00th=[ 153], 20.00th=[ 171], | 30.00th=[ 201], 40.00th=[ 359], 50.00th=[ 368], 60.00th=[ 414], | 70.00th=[ 422], 80.00th=[ 439], 90.00th=[ 550], 95.00th=[ 1183], | 99.00th=[ 1183], 99.50th=[ 1183], 99.90th=[ 1183], 99.95th=[ 1183], | 99.99th=[ 1183] bw ( KiB/s): min= 1654, max= 6059, per=48.16%, avg=2893.67, stdev=1766.76, samples=6 iops : min= 1, max= 5, avg= 2.17, stdev= 1.60, samples=6 lat (msec) : 2=8.33%, 250=25.00%, 500=50.00%, 750=8.33%, 2000=8.33% cpu : usr=0.00%, sys=11.30%, ctx=135, 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=145630: Fri Oct 2 10:21:27 2026 read: IOPS=1, BW=1754KiB/s (1797kB/s)(6144KiB/3502msec) clat (msec): min=76, max=383, avg=204.79, stdev=125.59 lat (msec): min=76, max=383, avg=204.79, stdev=125.59 clat percentiles (msec): | 1.00th=[ 78], 5.00th=[ 78], 10.00th=[ 78], 20.00th=[ 97], | 30.00th=[ 97], 40.00th=[ 121], 50.00th=[ 121], 60.00th=[ 247], | 70.00th=[ 305], 80.00th=[ 305], 90.00th=[ 384], 95.00th=[ 384], | 99.00th=[ 384], 99.50th=[ 384], 99.90th=[ 384], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 1654, max= 4000, per=69.98%, avg=3003.67, stdev=1212.26, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=1, BW=1754KiB/s (1797kB/s)(6144KiB/3502msec); 0 zone resets clat (msec): min=143, max=852, avg=366.92, stdev=250.42 lat (msec): min=143, max=852, avg=366.99, stdev=250.41 clat percentiles (msec): | 1.00th=[ 144], 5.00th=[ 144], 10.00th=[ 144], 20.00th=[ 245], | 30.00th=[ 245], 40.00th=[ 264], 50.00th=[ 264], 60.00th=[ 326], | 70.00th=[ 372], 80.00th=[ 372], 90.00th=[ 852], 95.00th=[ 852], | 99.00th=[ 852], 99.50th=[ 852], 99.90th=[ 852], 99.95th=[ 852], | 99.99th=[ 852] bw ( KiB/s): min= 1654, max= 3637, per=36.51%, avg=2193.80, stdev=823.92, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (msec) : 100=16.67%, 250=33.33%, 500=41.67%, 1000=8.33% cpu : usr=0.00%, sys=12.44%, ctx=195, 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=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=145631: Fri Oct 2 10:21:27 2026 read: IOPS=1, BW=1469KiB/s (1504kB/s)(5120KiB/3486msec) clat (usec): min=342, max=590196, avg=180729.70, stdev=265701.70 lat (usec): min=343, max=590198, avg=180730.91, stdev=265702.03 clat percentiles (usec): | 1.00th=[ 343], 5.00th=[ 343], 10.00th=[ 343], 20.00th=[ 343], | 30.00th=[ 465], 40.00th=[ 465], 50.00th=[ 603], 60.00th=[ 603], | 70.00th=[312476], 80.00th=[312476], 90.00th=[591397], 95.00th=[591397], | 99.00th=[591397], 99.50th=[591397], 99.90th=[591397], 99.95th=[591397], | 99.99th=[591397] bw ( KiB/s): min= 1678, max= 6000, per=89.45%, avg=3839.00, stdev=3056.12, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=2, BW=2056KiB/s (2106kB/s)(7168KiB/3486msec); 0 zone resets clat (msec): min=132, max=639, avg=360.35, stdev=179.88 lat (msec): min=132, max=639, avg=360.43, stdev=179.88 clat percentiles (msec): | 1.00th=[ 133], 5.00th=[ 133], 10.00th=[ 133], 20.00th=[ 209], | 30.00th=[ 309], 40.00th=[ 309], 50.00th=[ 313], 60.00th=[ 368], | 70.00th=[ 368], 80.00th=[ 550], 90.00th=[ 642], 95.00th=[ 642], | 99.00th=[ 642], 99.50th=[ 642], 99.90th=[ 642], 99.95th=[ 642], | 99.99th=[ 642] bw ( KiB/s): min= 1600, max= 4000, per=45.58%, avg=2739.00, stdev=1108.86, samples=4 iops : min= 1, max= 3, avg= 2.25, stdev= 0.96, samples=4 lat (usec) : 500=16.67%, 750=8.33% lat (msec) : 250=16.67%, 500=33.33%, 750=25.00% cpu : usr=0.03%, sys=14.32%, ctx=121, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=4293KiB/s (4396kB/s), 429KiB/s-2218KiB/s (440kB/s-2271kB/s), io=20.0MiB (20.0MB), run=3232-4771msec WRITE: bw=6010KiB/s (6154kB/s), 1584KiB/s-2146KiB/s (1622kB/s-2198kB/s), io=28.0MiB (29.4MB), run=3232-4771msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145633: Fri Oct 2 10:21:28 2026 read: IOPS=1, BW=1599KiB/s (1638kB/s)(7168KiB/4482msec) clat (msec): min=101, max=463, avg=257.45, stdev=132.24 lat (msec): min=101, max=463, avg=257.45, stdev=132.24 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 102], 10.00th=[ 102], 20.00th=[ 144], | 30.00th=[ 169], 40.00th=[ 169], 50.00th=[ 230], 60.00th=[ 338], | 70.00th=[ 338], 80.00th=[ 359], 90.00th=[ 464], 95.00th=[ 464], | 99.00th=[ 464], 99.50th=[ 464], 99.90th=[ 464], 99.95th=[ 464], | 99.99th=[ 464] bw ( KiB/s): min= 1510, max= 4000, per=60.12%, avg=2286.80, stdev=979.21, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 write: IOPS=1, BW=1142KiB/s (1170kB/s)(5120KiB/4482msec); 0 zone resets clat (msec): min=231, max=848, avg=498.58, stdev=242.11 lat (msec): min=231, max=849, avg=499.42, stdev=242.96 clat percentiles (msec): | 1.00th=[ 232], 5.00th=[ 232], 10.00th=[ 232], 20.00th=[ 232], | 30.00th=[ 347], 40.00th=[ 347], 50.00th=[ 447], 60.00th=[ 447], | 70.00th=[ 617], 80.00th=[ 617], 90.00th=[ 852], 95.00th=[ 852], | 99.00th=[ 852], 99.50th=[ 852], 99.90th=[ 852], 99.95th=[ 852], | 99.99th=[ 852] bw ( KiB/s): min= 1961, max= 2031, per=37.48%, avg=1996.00, stdev=38.18, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 lat (msec) : 250=41.67%, 500=41.67%, 750=8.33%, 1000=8.33% cpu : usr=0.00%, sys=3.46%, ctx=66, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145634: Fri Oct 2 10:21:28 2026 read: IOPS=0, BW=417KiB/s (427kB/s)(2048KiB/4908msec) clat (msec): min=129, max=336, avg=232.97, stdev=145.71 lat (msec): min=129, max=336, avg=232.97, stdev=145.71 clat percentiles (msec): | 1.00th=[ 130], 5.00th=[ 130], 10.00th=[ 130], 20.00th=[ 130], | 30.00th=[ 130], 40.00th=[ 130], 50.00th=[ 130], 60.00th=[ 338], | 70.00th=[ 338], 80.00th=[ 338], 90.00th=[ 338], 95.00th=[ 338], | 99.00th=[ 338], 99.50th=[ 338], 99.90th=[ 338], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 2000, max= 2031, per=52.98%, avg=2015.50, stdev=21.92, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2086KiB/s (2136kB/s)(10.0MiB/4908msec); 0 zone resets clat (msec): min=112, max=1016, avg=411.06, stdev=269.69 lat (msec): min=112, max=1016, avg=411.14, stdev=269.68 clat percentiles (msec): | 1.00th=[ 113], 5.00th=[ 113], 10.00th=[ 113], 20.00th=[ 178], | 30.00th=[ 197], 40.00th=[ 309], 50.00th=[ 363], 60.00th=[ 405], | 70.00th=[ 414], 80.00th=[ 422], 90.00th=[ 701], 95.00th=[ 1020], | 99.00th=[ 1020], 99.50th=[ 1020], 99.90th=[ 1020], 99.95th=[ 1020], | 99.99th=[ 1020] bw ( KiB/s): min= 1932, max= 6107, per=48.34%, avg=2574.71, stdev=1558.01, samples=7 iops : min= 1, max= 5, avg= 1.57, stdev= 1.51, samples=7 lat (msec) : 250=33.33%, 500=50.00%, 750=8.33%, 2000=8.33% cpu : usr=0.02%, sys=3.89%, ctx=66, 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=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=145635: Fri Oct 2 10:21:28 2026 read: IOPS=1, BW=1341KiB/s (1374kB/s)(6144KiB/4580msec) clat (msec): min=127, max=847, avg=324.28, stdev=262.73 lat (msec): min=127, max=847, avg=324.28, stdev=262.73 clat percentiles (msec): | 1.00th=[ 128], 5.00th=[ 128], 10.00th=[ 128], 20.00th=[ 192], | 30.00th=[ 192], 40.00th=[ 226], 50.00th=[ 226], 60.00th=[ 253], | 70.00th=[ 300], 80.00th=[ 300], 90.00th=[ 844], 95.00th=[ 844], | 99.00th=[ 844], 99.50th=[ 844], 99.90th=[ 844], 99.95th=[ 844], | 99.99th=[ 844] bw ( KiB/s): min= 1965, max= 4063, per=66.36%, avg=2524.50, stdev=1026.22, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1341KiB/s (1374kB/s)(6144KiB/4580msec); 0 zone resets clat (msec): min=290, max=699, avg=424.27, stdev=171.64 lat (msec): min=290, max=699, avg=424.35, stdev=171.63 clat percentiles (msec): | 1.00th=[ 292], 5.00th=[ 292], 10.00th=[ 292], 20.00th=[ 313], | 30.00th=[ 313], 40.00th=[ 313], 50.00th=[ 313], 60.00th=[ 355], | 70.00th=[ 575], 80.00th=[ 575], 90.00th=[ 701], 95.00th=[ 701], | 99.00th=[ 701], 99.50th=[ 701], 99.90th=[ 701], 99.95th=[ 701], | 99.99th=[ 701] bw ( KiB/s): min= 1790, max= 2043, per=36.77%, avg=1958.40, stdev=103.26, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 250=25.00%, 500=50.00%, 750=16.67%, 1000=8.33% cpu : usr=0.00%, sys=2.44%, ctx=58, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145636: Fri Oct 2 10:21:28 2026 read: IOPS=0, BW=951KiB/s (974kB/s)(5120KiB/5383msec) clat (msec): min=74, max=392, avg=203.14, stdev=144.58 lat (msec): min=74, max=392, avg=203.14, stdev=144.58 clat percentiles (msec): | 1.00th=[ 75], 5.00th=[ 75], 10.00th=[ 75], 20.00th=[ 75], | 30.00th=[ 87], 40.00th=[ 87], 50.00th=[ 142], 60.00th=[ 142], | 70.00th=[ 321], 80.00th=[ 321], 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= 2027, max= 6107, per=100.00%, avg=4067.00, stdev=2885.00, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=1, BW=1332KiB/s (1364kB/s)(7168KiB/5383msec); 0 zone resets clat (msec): min=170, max=1196, avg=576.49, stdev=410.27 lat (msec): min=170, max=1196, avg=576.57, stdev=410.27 clat percentiles (msec): | 1.00th=[ 171], 5.00th=[ 171], 10.00th=[ 171], 20.00th=[ 171], | 30.00th=[ 171], 40.00th=[ 171], 50.00th=[ 709], 60.00th=[ 751], | 70.00th=[ 751], 80.00th=[ 869], 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= 1961, max= 6144, per=52.94%, avg=2819.40, stdev=1858.70, samples=5 iops : min= 1, max= 6, avg= 2.00, stdev= 2.24, samples=5 lat (msec) : 100=16.67%, 250=33.33%, 500=16.67%, 750=8.33%, 1000=16.67% lat (msec) : 2000=8.33% cpu : usr=0.00%, sys=4.01%, ctx=108, 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=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=3805KiB/s (3896kB/s), 417KiB/s-1599KiB/s (427kB/s-1638kB/s), io=20.0MiB (20.0MB), run=4482-5383msec WRITE: bw=5326KiB/s (5454kB/s), 1142KiB/s-2086KiB/s (1170kB/s-2136kB/s), io=28.0MiB (29.4MB), run=4482-5383msec 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=145648: Fri Oct 2 10:21:40 2026 read: IOPS=1, BW=5157KiB/s (5280kB/s)(12.0MiB/2383msec) clat (msec): min=339, max=1199, avg=794.02, stdev=432.03 lat (msec): min=339, max=1199, avg=794.02, stdev=432.03 clat percentiles (msec): | 1.00th=[ 342], 5.00th=[ 342], 10.00th=[ 342], 20.00th=[ 342], | 30.00th=[ 342], 40.00th=[ 844], 50.00th=[ 844], 60.00th=[ 844], | 70.00th=[ 1200], 80.00th=[ 1200], 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= 8078, max= 8143, per=100.00%, avg=8110.50, stdev=45.96, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=6.13%, ctx=44, 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=145649: Fri Oct 2 10:21:40 2026 read: IOPS=0, BW=1135KiB/s (1162kB/s)(4096KiB/3609msec) clat (nsec): min=1342.9M, max=1342.9M, avg=1342885465.00, stdev= 0.00 lat (nsec): min=1342.9M, max=1342.9M, avg=1342887425.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1351], 5.00th=[ 1351], 10.00th=[ 1351], 20.00th=[ 1351], | 30.00th=[ 1351], 40.00th=[ 1351], 50.00th=[ 1351], 60.00th=[ 1351], | 70.00th=[ 1351], 80.00th=[ 1351], 90.00th=[ 1351], 95.00th=[ 1351], | 99.00th=[ 1351], 99.50th=[ 1351], 99.90th=[ 1351], 99.95th=[ 1351], | 99.99th=[ 1351] bw ( KiB/s): min= 8175, max= 8175, per=100.00%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2270KiB/s (2324kB/s)(8192KiB/3609msec); 0 zone resets clat (msec): min=833, max=1407, avg=1120.66, stdev=405.61 lat (msec): min=834, max=1407, avg=1121.03, stdev=405.54 clat percentiles (msec): | 1.00th=[ 835], 5.00th=[ 835], 10.00th=[ 835], 20.00th=[ 835], | 30.00th=[ 835], 40.00th=[ 835], 50.00th=[ 835], 60.00th=[ 1401], | 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= 8192, max= 8192, per=90.23%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 1000=33.33%, 2000=66.67% cpu : usr=0.14%, sys=4.55%, ctx=89, 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=145650: Fri Oct 2 10:21:40 2026 write: IOPS=0, BW=4021KiB/s (4117kB/s)(12.0MiB/3056msec); 0 zone resets clat (msec): min=331, max=1579, avg=1014.44, stdev=632.35 lat (msec): min=331, max=1579, avg=1014.73, stdev=632.28 clat percentiles (msec): | 1.00th=[ 334], 5.00th=[ 334], 10.00th=[ 334], 20.00th=[ 334], | 30.00th=[ 334], 40.00th=[ 1133], 50.00th=[ 1133], 60.00th=[ 1133], | 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= 8143, max= 8143, per=89.69%, avg=8143.00, 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=4.65%, ctx=43, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145651: Fri Oct 2 10:21:40 2026 write: IOPS=1, BW=4389KiB/s (4494kB/s)(12.0MiB/2800msec); 0 zone resets clat (msec): min=366, max=1532, avg=921.78, stdev=584.93 lat (msec): min=369, max=1532, avg=923.26, stdev=583.42 clat percentiles (msec): | 1.00th=[ 368], 5.00th=[ 368], 10.00th=[ 368], 20.00th=[ 368], | 30.00th=[ 368], 40.00th=[ 869], 50.00th=[ 869], 60.00th=[ 869], | 70.00th=[ 1536], 80.00th=[ 1536], 90.00th=[ 1536], 95.00th=[ 1536], | 99.00th=[ 1536], 99.50th=[ 1536], 99.90th=[ 1536], 99.95th=[ 1536], | 99.99th=[ 1536] bw ( KiB/s): min= 8143, max= 8192, per=89.96%, avg=8167.50, stdev=34.65, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 500=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=5.64%, 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=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=4540KiB/s (4649kB/s), 1135KiB/s-5157KiB/s (1162kB/s-5280kB/s), io=16.0MiB (16.8MB), run=2383-3609msec WRITE: bw=9080KiB/s (9297kB/s), 2270KiB/s-4389KiB/s (2324kB/s-4494kB/s), io=32.0MiB (33.6MB), run=2800-3609msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145643: Fri Oct 2 10:21:40 2026 read: IOPS=1, BW=5368KiB/s (5497kB/s)(12.0MiB/2289msec) clat (msec): min=618, max=954, avg=753.41, stdev=177.28 lat (msec): min=618, max=954, avg=753.41, stdev=177.28 clat percentiles (msec): | 1.00th=[ 617], 5.00th=[ 617], 10.00th=[ 617], 20.00th=[ 617], | 30.00th=[ 617], 40.00th=[ 684], 50.00th=[ 684], 60.00th=[ 684], | 70.00th=[ 953], 80.00th=[ 953], 90.00th=[ 953], 95.00th=[ 953], | 99.00th=[ 953], 99.50th=[ 953], 99.90th=[ 953], 99.95th=[ 953], | 99.99th=[ 953] bw ( KiB/s): min= 8015, max= 8031, per=100.00%, avg=8023.00, stdev=11.31, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=66.67%, 1000=33.33% cpu : usr=0.00%, sys=22.33%, ctx=350, majf=0, minf=7 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145644: Fri Oct 2 10:21:40 2026 read: IOPS=0, BW=1159KiB/s (1187kB/s)(4096KiB/3533msec) clat (nsec): min=655238k, max=655238k, avg=655238430.00, stdev= 0.00 lat (nsec): min=655241k, max=655241k, avg=655241235.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 659], 5.00th=[ 659], 10.00th=[ 659], 20.00th=[ 659], | 30.00th=[ 659], 40.00th=[ 659], 50.00th=[ 659], 60.00th=[ 659], | 70.00th=[ 659], 80.00th=[ 659], 90.00th=[ 659], 95.00th=[ 659], | 99.00th=[ 659], 99.50th=[ 659], 99.90th=[ 659], 99.95th=[ 659], | 99.99th=[ 659] bw ( KiB/s): min= 8015, max= 8015, per=100.00%, avg=8015.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2319KiB/s (2374kB/s)(8192KiB/3533msec); 0 zone resets clat (msec): min=946, max=1847, avg=1396.81, stdev=637.25 lat (msec): min=946, max=1847, avg=1397.20, stdev=637.33 clat percentiles (msec): | 1.00th=[ 944], 5.00th=[ 944], 10.00th=[ 944], 20.00th=[ 944], | 30.00th=[ 944], 40.00th=[ 944], 50.00th=[ 944], 60.00th=[ 1854], | 70.00th=[ 1854], 80.00th=[ 1854], 90.00th=[ 1854], 95.00th=[ 1854], | 99.00th=[ 1854], 99.50th=[ 1854], 99.90th=[ 1854], 99.95th=[ 1854], | 99.99th=[ 1854] bw ( KiB/s): min= 7922, max= 7922, per=96.98%, avg=7922.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=5.10%, ctx=183, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145645: Fri Oct 2 10:21:40 2026 write: IOPS=0, BW=3064KiB/s (3137kB/s)(12.0MiB/4011msec); 0 zone resets clat (msec): min=279, max=1855, avg=1322.68, stdev=903.26 lat (msec): min=280, max=1856, avg=1323.14, stdev=903.03 clat percentiles (msec): | 1.00th=[ 279], 5.00th=[ 279], 10.00th=[ 279], 20.00th=[ 279], | 30.00th=[ 279], 40.00th=[ 1838], 50.00th=[ 1838], 60.00th=[ 1838], | 70.00th=[ 1854], 80.00th=[ 1854], 90.00th=[ 1854], 95.00th=[ 1854], | 99.00th=[ 1854], 99.50th=[ 1854], 99.90th=[ 1854], 99.95th=[ 1854], | 99.99th=[ 1854] bw ( KiB/s): min= 8031, max= 8031, per=98.31%, avg=8031.00, 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=0.05%, sys=4.61%, ctx=59, majf=0, minf=7 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145646: Fri Oct 2 10:21:40 2026 write: IOPS=1, BW=5678KiB/s (5815kB/s)(12.0MiB/2164msec); 0 zone resets clat (msec): min=330, max=1004, avg=720.50, stdev=349.58 lat (msec): min=330, max=1005, avg=720.92, stdev=349.63 clat percentiles (msec): | 1.00th=[ 330], 5.00th=[ 330], 10.00th=[ 330], 20.00th=[ 330], | 30.00th=[ 330], 40.00th=[ 827], 50.00th=[ 827], 60.00th=[ 827], | 70.00th=[ 1003], 80.00th=[ 1003], 90.00th=[ 1003], 95.00th=[ 1003], | 99.00th=[ 1003], 99.50th=[ 1003], 99.90th=[ 1003], 99.95th=[ 1003], | 99.99th=[ 1003] bw ( KiB/s): min= 8015, max= 8031, per=98.21%, avg=8023.00, stdev=11.31, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.05%, sys=11.10%, ctx=67, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=4637KiB/s (4749kB/s), 1159KiB/s-5368KiB/s (1187kB/s-5497kB/s), io=16.0MiB (16.8MB), run=2289-3533msec WRITE: bw=8170KiB/s (8366kB/s), 2319KiB/s-5678KiB/s (2374kB/s-5815kB/s), io=32.0MiB (33.6MB), run=2164-4011msec