== sanity test 398b: DIO and buffer IO race ============== 13:40:39 (1788802839) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 5.72556 s, 8.8 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=179206: Mon Sep 7 13:42:51 2026 read: IOPS=13, BW=53.3KiB/s (54.6kB/s)(5992KiB/112329msec) clat (usec): min=36, max=467124, avg=40634.52, stdev=27157.51 lat (usec): min=37, max=467125, avg=40636.13, stdev=27157.74 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 10028], 10.00th=[ 15926], 20.00th=[ 21103], | 30.00th=[ 25560], 40.00th=[ 30016], 50.00th=[ 35390], 60.00th=[ 41157], | 70.00th=[ 49546], 80.00th=[ 57410], 90.00th=[ 71828], 95.00th=[ 87557], | 99.00th=[128451], 99.50th=[139461], 99.90th=[181404], 99.95th=[467665], | 99.99th=[467665] bw ( KiB/s): min= 15, max= 119, per=24.97%, avg=52.94, stdev=19.10, samples=221 iops : min= 3, max= 29, avg=12.58, stdev= 4.82, samples=221 write: IOPS=14, BW=56.0KiB/s (57.4kB/s)(6296KiB/112329msec); 0 zone resets clat (usec): min=1042, max=625369, avg=32440.78, stdev=35316.62 lat (usec): min=1043, max=625372, avg=32443.16, stdev=35316.39 clat percentiles (usec): | 1.00th=[ 1123], 5.00th=[ 1434], 10.00th=[ 2278], 20.00th=[ 4080], | 30.00th=[ 7308], 40.00th=[ 15795], 50.00th=[ 23462], 60.00th=[ 31589], | 70.00th=[ 41157], 80.00th=[ 56361], 90.00th=[ 78119], 95.00th=[ 96994], | 99.00th=[130548], 99.50th=[156238], 99.90th=[210764], 99.95th=[624952], | 99.99th=[624952] bw ( KiB/s): min= 7, max= 150, per=25.06%, avg=55.64, stdev=22.99, samples=221 iops : min= 1, max= 37, avg=13.26, stdev= 5.77, samples=221 lat (usec) : 50=0.33%, 100=1.30%, 250=0.36%, 500=0.03% lat (msec) : 2=4.56%, 4=5.53%, 10=7.94%, 20=11.88%, 50=41.73% lat (msec) : 100=22.75%, 250=3.52%, 500=0.03%, 750=0.03% cpu : usr=0.09%, sys=5.92%, ctx=6901, 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=179207: Mon Sep 7 13:42:51 2026 read: IOPS=13, BW=53.2KiB/s (54.5kB/s)(5940KiB/111703msec) clat (usec): min=43, max=674376, avg=40980.19, stdev=30339.10 lat (usec): min=43, max=674378, avg=40981.80, stdev=30339.22 clat percentiles (usec): | 1.00th=[ 56], 5.00th=[ 10814], 10.00th=[ 15795], 20.00th=[ 21103], | 30.00th=[ 25297], 40.00th=[ 30016], 50.00th=[ 35390], 60.00th=[ 41157], | 70.00th=[ 47973], 80.00th=[ 57934], 90.00th=[ 72877], 95.00th=[ 89654], | 99.00th=[121111], 99.50th=[147850], 99.90th=[196084], 99.95th=[675283], | 99.99th=[675283] bw ( KiB/s): min= 7, max= 119, per=25.04%, avg=53.09, stdev=19.03, samples=219 iops : min= 1, max= 29, avg=12.62, stdev= 4.78, samples=219 write: IOPS=14, BW=56.8KiB/s (58.2kB/s)(6348KiB/111703msec); 0 zone resets clat (usec): min=965, max=451715, avg=31737.77, stdev=33235.00 lat (usec): min=966, max=451717, avg=31740.87, stdev=33235.68 clat percentiles (usec): | 1.00th=[ 1123], 5.00th=[ 1401], 10.00th=[ 1975], 20.00th=[ 3818], | 30.00th=[ 6849], 40.00th=[ 15533], 50.00th=[ 24249], 60.00th=[ 31589], | 70.00th=[ 40109], 80.00th=[ 54264], 90.00th=[ 74974], 95.00th=[ 94897], | 99.00th=[130548], 99.50th=[175113], 99.90th=[231736], 99.95th=[450888], | 99.99th=[450888] bw ( KiB/s): min= 7, max= 127, per=25.59%, avg=56.81, stdev=22.93, samples=219 iops : min= 1, max= 31, avg=13.56, stdev= 5.78, samples=219 lat (usec) : 50=0.23%, 100=1.27%, 250=0.29%, 500=0.10%, 1000=0.03% lat (msec) : 2=5.31%, 4=5.86%, 10=7.23%, 20=11.43%, 50=43.46% lat (msec) : 100=21.09%, 250=3.65%, 500=0.03%, 750=0.03% cpu : usr=0.09%, sys=5.88%, ctx=6774, 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=179208: Mon Sep 7 13:42:51 2026 read: IOPS=13, BW=53.9KiB/s (55.2kB/s)(6028KiB/111875msec) clat (usec): min=41, max=263816, avg=41434.23, stdev=28277.87 lat (usec): min=42, max=263818, avg=41436.37, stdev=28278.50 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 7177], 10.00th=[ 14484], 20.00th=[ 20055], | 30.00th=[ 24511], 40.00th=[ 29754], 50.00th=[ 35390], 60.00th=[ 42730], | 70.00th=[ 50070], 80.00th=[ 60031], 90.00th=[ 74974], 95.00th=[ 91751], | 99.00th=[127402], 99.50th=[162530], 99.90th=[250610], 99.95th=[263193], | 99.99th=[263193] bw ( KiB/s): min= 14, max= 103, per=25.22%, avg=53.46, stdev=19.48, samples=220 iops : min= 3, max= 25, avg=12.72, stdev= 4.90, samples=220 write: IOPS=13, BW=55.0KiB/s (57.3kB/s)(6260KiB/111875msec); 0 zone resets clat (usec): min=920, max=987578, avg=31317.56, stdev=38772.35 lat (usec): min=921, max=987579, avg=31325.99, stdev=38770.82 clat percentiles (usec): | 1.00th=[ 1106], 5.00th=[ 1352], 10.00th=[ 1942], 20.00th=[ 3949], | 30.00th=[ 7046], 40.00th=[ 14877], 50.00th=[ 23987], 60.00th=[ 30540], | 70.00th=[ 40109], 80.00th=[ 53216], 90.00th=[ 70779], 95.00th=[ 90702], | 99.00th=[129500], 99.50th=[139461], 99.90th=[244319], 99.95th=[985662], | 99.99th=[985662] bw ( KiB/s): min= 8, max= 143, per=24.99%, avg=55.48, stdev=24.19, samples=220 iops : min= 2, max= 35, avg=13.22, stdev= 6.09, samples=220 lat (usec) : 50=0.39%, 100=1.53%, 250=0.29%, 500=0.07%, 750=0.03% lat (usec) : 1000=0.10% lat (msec) : 2=5.31%, 4=4.98%, 10=7.71%, 20=12.63%, 50=40.69% lat (msec) : 100=22.69%, 250=3.48%, 500=0.07%, 1000=0.03% cpu : usr=0.08%, sys=5.97%, ctx=7024, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179209: Mon Sep 7 13:42:51 2026 read: IOPS=13, BW=53.6KiB/s (54.9kB/s)(6052KiB/112805msec) clat (usec): min=41, max=193852, avg=40411.94, stdev=27102.99 lat (usec): min=42, max=193853, avg=40415.28, stdev=27103.23 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 9634], 10.00th=[ 15401], 20.00th=[ 20055], | 30.00th=[ 24511], 40.00th=[ 28705], 50.00th=[ 33817], 60.00th=[ 40633], | 70.00th=[ 49021], 80.00th=[ 57410], 90.00th=[ 74974], 95.00th=[ 92799], | 99.00th=[135267], 99.50th=[152044], 99.90th=[191890], 99.95th=[193987], | 99.99th=[193987] bw ( KiB/s): min= 7, max= 136, per=25.45%, avg=53.95, stdev=22.02, samples=219 iops : min= 1, max= 34, avg=12.84, stdev= 5.55, samples=219 write: IOPS=13, BW=55.3KiB/s (56.6kB/s)(6236KiB/112805msec); 0 zone resets clat (usec): min=937, max=666903, avg=32823.61, stdev=38512.45 lat (usec): min=938, max=666906, avg=32825.87, stdev=38512.37 clat percentiles (usec): | 1.00th=[ 1090], 5.00th=[ 1385], 10.00th=[ 1958], 20.00th=[ 3621], | 30.00th=[ 6194], 40.00th=[ 13435], 50.00th=[ 23200], 60.00th=[ 30802], | 70.00th=[ 41157], 80.00th=[ 56361], 90.00th=[ 78119], 95.00th=[ 99091], | 99.00th=[147850], 99.50th=[181404], 99.90th=[434111], 99.95th=[666895], | 99.99th=[666895] bw ( KiB/s): min= 7, max= 135, per=24.79%, avg=55.03, stdev=23.67, samples=221 iops : min= 1, max= 33, avg=13.11, stdev= 5.97, samples=221 lat (usec) : 50=0.33%, 100=1.56%, 250=0.26%, 500=0.03%, 1000=0.07% lat (msec) : 2=5.18%, 4=5.76%, 10=7.65%, 20=12.34%, 50=40.79% lat (msec) : 100=21.65%, 250=4.33%, 500=0.03%, 750=0.03% cpu : usr=0.07%, sys=5.80%, ctx=6894, 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=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=213KiB/s (218kB/s), 53.2KiB/s-53.9KiB/s (54.5kB/s-55.2kB/s), io=23.4MiB (24.6MB), run=111703-112805msec WRITE: bw=223KiB/s (228kB/s), 55.3KiB/s-56.8KiB/s (56.6kB/s-58.2kB/s), io=24.6MiB (25.7MB), run=111703-112805msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179202: Mon Sep 7 13:43:27 2026 read: IOPS=10, BW=40.5KiB/s (41.5kB/s)(5992KiB/147844msec) clat (msec): min=5, max=1039, avg=39.71, stdev=43.15 lat (msec): min=5, max=1039, avg=39.71, stdev=43.15 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 22], 50.00th=[ 27], 60.00th=[ 33], | 70.00th=[ 44], 80.00th=[ 57], 90.00th=[ 86], 95.00th=[ 116], | 99.00th=[ 167], 99.50th=[ 182], 99.90th=[ 275], 99.95th=[ 1036], | 99.99th=[ 1036] bw ( KiB/s): min= 7, max= 143, per=25.38%, avg=40.87, stdev=27.49, samples=286 iops : min= 1, max= 35, avg= 9.56, stdev= 6.88, samples=286 write: IOPS=10, BW=42.6KiB/s (43.6kB/s)(6296KiB/147844msec); 0 zone resets clat (msec): min=11, max=281, avg=55.83, stdev=38.51 lat (msec): min=11, max=281, avg=55.84, stdev=38.51 clat percentiles (msec): | 1.00th=[ 15], 5.00th=[ 19], 10.00th=[ 22], 20.00th=[ 27], | 30.00th=[ 31], 40.00th=[ 36], 50.00th=[ 43], 60.00th=[ 53], | 70.00th=[ 65], 80.00th=[ 83], 90.00th=[ 113], 95.00th=[ 131], | 99.00th=[ 194], 99.50th=[ 215], 99.90th=[ 264], 99.95th=[ 284], | 99.99th=[ 284] bw ( KiB/s): min= 7, max= 127, per=25.36%, avg=42.60, stdev=26.14, samples=288 iops : min= 1, max= 31, avg=10.00, stdev= 6.56, samples=288 lat (msec) : 10=2.64%, 20=18.46%, 50=45.90%, 100=22.62%, 250=10.22% lat (msec) : 500=0.13%, 2000=0.03% cpu : usr=0.08%, sys=2.02%, ctx=4770, 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=179203: Mon Sep 7 13:43:27 2026 read: IOPS=9, BW=39.9KiB/s (40.9kB/s)(5940KiB/148828msec) clat (msec): min=6, max=697, avg=40.25, stdev=39.52 lat (msec): min=6, max=697, avg=40.26, stdev=39.52 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 22], 50.00th=[ 27], 60.00th=[ 34], | 70.00th=[ 42], 80.00th=[ 58], 90.00th=[ 92], 95.00th=[ 120], | 99.00th=[ 171], 99.50th=[ 186], 99.90th=[ 279], 99.95th=[ 701], | 99.99th=[ 701] bw ( KiB/s): min= 7, max= 143, per=25.17%, avg=40.52, stdev=27.76, samples=286 iops : min= 1, max= 35, avg= 9.47, stdev= 6.95, samples=286 write: IOPS=10, BW=42.7KiB/s (43.7kB/s)(6348KiB/148828msec); 0 zone resets clat (msec): min=12, max=424, avg=55.85, stdev=41.16 lat (msec): min=12, max=424, avg=55.86, stdev=41.16 clat percentiles (msec): | 1.00th=[ 15], 5.00th=[ 19], 10.00th=[ 22], 20.00th=[ 26], | 30.00th=[ 30], 40.00th=[ 35], 50.00th=[ 42], 60.00th=[ 52], | 70.00th=[ 64], 80.00th=[ 82], 90.00th=[ 110], 95.00th=[ 142], | 99.00th=[ 201], 99.50th=[ 236], 99.90th=[ 309], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 7, max= 127, per=25.27%, avg=42.45, stdev=26.25, samples=291 iops : min= 1, max= 31, avg= 9.96, stdev= 6.58, samples=291 lat (msec) : 10=2.60%, 20=18.29%, 50=46.32%, 100=22.17%, 250=10.35% lat (msec) : 500=0.23%, 750=0.03% cpu : usr=0.07%, sys=2.07%, ctx=4872, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179204: Mon Sep 7 13:43:27 2026 read: IOPS=10, BW=40.5KiB/s (41.5kB/s)(6028KiB/148905msec) clat (msec): min=5, max=235, avg=39.52, stdev=34.66 lat (msec): min=5, max=235, avg=39.52, stdev=34.66 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 23], 50.00th=[ 27], 60.00th=[ 34], | 70.00th=[ 43], 80.00th=[ 57], 90.00th=[ 90], 95.00th=[ 114], | 99.00th=[ 174], 99.50th=[ 188], 99.90th=[ 222], 99.95th=[ 236], | 99.99th=[ 236] bw ( KiB/s): min= 7, max= 144, per=25.04%, avg=40.31, stdev=26.99, samples=291 iops : min= 1, max= 36, avg= 9.42, stdev= 6.78, samples=291 write: IOPS=10, BW=42.0KiB/s (43.0kB/s)(6260KiB/148905msec); 0 zone resets clat (msec): min=12, max=726, avg=56.82, stdev=44.77 lat (msec): min=12, max=726, avg=56.82, stdev=44.77 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 20], 10.00th=[ 22], 20.00th=[ 26], | 30.00th=[ 30], 40.00th=[ 35], 50.00th=[ 43], 60.00th=[ 52], | 70.00th=[ 65], 80.00th=[ 83], 90.00th=[ 110], 95.00th=[ 140], | 99.00th=[ 218], 99.50th=[ 251], 99.90th=[ 338], 99.95th=[ 726], | 99.99th=[ 726] bw ( KiB/s): min= 7, max= 151, per=24.92%, avg=41.86, stdev=26.39, samples=291 iops : min= 1, max= 37, avg= 9.81, stdev= 6.61, samples=291 lat (msec) : 10=2.77%, 20=17.84%, 50=46.03%, 100=23.05%, 250=10.06% lat (msec) : 500=0.23%, 750=0.03% cpu : usr=0.07%, sys=2.13%, ctx=4923, 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=179205: Mon Sep 7 13:43:27 2026 read: IOPS=10, BW=40.9KiB/s (41.9kB/s)(6052KiB/148078msec) clat (msec): min=5, max=228, avg=37.95, stdev=33.49 lat (msec): min=5, max=228, avg=37.95, stdev=33.49 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 22], 50.00th=[ 26], 60.00th=[ 32], | 70.00th=[ 40], 80.00th=[ 56], 90.00th=[ 84], 95.00th=[ 110], | 99.00th=[ 167], 99.50th=[ 182], 99.90th=[ 228], 99.95th=[ 228], | 99.99th=[ 228] bw ( KiB/s): min= 7, max= 143, per=25.74%, avg=41.44, stdev=28.19, samples=284 iops : min= 1, max= 35, avg= 9.70, stdev= 7.07, samples=284 write: IOPS=10, BW=42.1KiB/s (43.1kB/s)(6236KiB/148078msec); 0 zone resets clat (msec): min=11, max=721, avg=57.88, stdev=44.91 lat (msec): min=11, max=721, avg=57.89, stdev=44.91 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 20], 10.00th=[ 22], 20.00th=[ 27], | 30.00th=[ 32], 40.00th=[ 37], 50.00th=[ 43], 60.00th=[ 53], | 70.00th=[ 65], 80.00th=[ 87], 90.00th=[ 111], 95.00th=[ 138], | 99.00th=[ 215], 99.50th=[ 257], 99.90th=[ 422], 99.95th=[ 718], | 99.99th=[ 718] bw ( KiB/s): min= 7, max= 125, per=24.87%, avg=41.78, stdev=25.68, samples=290 iops : min= 1, max= 31, avg= 9.79, stdev= 6.43, samples=290 lat (msec) : 10=2.67%, 20=18.65%, 50=45.51%, 100=23.08%, 250=9.83% lat (msec) : 500=0.23%, 750=0.03% cpu : usr=0.06%, sys=2.08%, ctx=4866, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=161KiB/s (165kB/s), 39.9KiB/s-40.9KiB/s (40.9kB/s-41.9kB/s), io=23.4MiB (24.6MB), run=147844-148905msec WRITE: bw=169KiB/s (173kB/s), 42.0KiB/s-42.7KiB/s (43.0kB/s-43.7kB/s), io=24.6MiB (25.7MB), run=147844-148905msec 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=179251: Mon Sep 7 13:44:08 2026 read: IOPS=12, BW=197KiB/s (202kB/s)(5920KiB/30017msec) clat (usec): min=43, max=200787, avg=43276.76, stdev=29348.46 lat (usec): min=43, max=200789, avg=43279.63, stdev=29347.91 clat percentiles (usec): | 1.00th=[ 62], 5.00th=[ 110], 10.00th=[ 15270], 20.00th=[ 22676], | 30.00th=[ 28181], 40.00th=[ 32375], 50.00th=[ 38011], 60.00th=[ 43254], | 70.00th=[ 51119], 80.00th=[ 62129], 90.00th=[ 77071], 95.00th=[ 92799], | 99.00th=[156238], 99.50th=[177210], 99.90th=[200279], 99.95th=[200279], | 99.99th=[200279] bw ( KiB/s): min= 63, max= 380, per=24.73%, avg=197.14, stdev=78.46, samples=59 iops : min= 3, max= 23, avg=11.56, stdev= 4.93, samples=59 write: IOPS=13, BW=212KiB/s (217kB/s)(6368KiB/30017msec); 0 zone resets clat (usec): min=1568, max=164745, avg=34035.47, stdev=30733.00 lat (usec): min=1569, max=164749, avg=34038.43, stdev=30733.09 clat percentiles (usec): | 1.00th=[ 1729], 5.00th=[ 2737], 10.00th=[ 3818], 20.00th=[ 6718], | 30.00th=[ 11469], 40.00th=[ 19530], 50.00th=[ 25822], 60.00th=[ 32113], | 70.00th=[ 42730], 80.00th=[ 61080], 90.00th=[ 77071], 95.00th=[ 93848], | 99.00th=[137364], 99.50th=[162530], 99.90th=[164627], 99.95th=[164627], | 99.99th=[164627] bw ( KiB/s): min= 22, max= 415, per=25.41%, avg=213.17, stdev=89.19, samples=59 iops : min= 1, max= 25, avg=12.56, stdev= 5.67, samples=59 lat (usec) : 50=0.26%, 100=1.95%, 250=1.04%, 500=0.13%, 1000=0.13% lat (msec) : 2=1.30%, 4=4.43%, 10=8.59%, 20=10.55%, 50=43.10% lat (msec) : 100=24.35%, 250=4.17% cpu : usr=0.11%, sys=7.00%, ctx=1973, 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=179253: Mon Sep 7 13:44:08 2026 read: IOPS=12, BW=197KiB/s (201kB/s)(5744KiB/29229msec) clat (usec): min=48, max=193346, avg=42726.39, stdev=28004.27 lat (usec): min=50, max=193348, avg=42728.04, stdev=28004.25 clat percentiles (usec): | 1.00th=[ 61], 5.00th=[ 97], 10.00th=[ 15401], 20.00th=[ 22676], | 30.00th=[ 28705], 40.00th=[ 34341], 50.00th=[ 40109], 60.00th=[ 44827], | 70.00th=[ 50594], 80.00th=[ 58983], 90.00th=[ 76022], 95.00th=[ 87557], | 99.00th=[145753], 99.50th=[191890], 99.90th=[193987], 99.95th=[193987], | 99.99th=[193987] bw ( KiB/s): min= 45, max= 319, per=24.68%, avg=196.68, stdev=61.10, samples=57 iops : min= 2, max= 19, avg=11.51, stdev= 3.86, samples=57 write: IOPS=13, BW=224KiB/s (229kB/s)(6544KiB/29229msec); 0 zone resets clat (usec): min=1496, max=167107, avg=33715.73, stdev=30863.96 lat (usec): min=1498, max=167110, avg=33721.58, stdev=30863.47 clat percentiles (usec): | 1.00th=[ 1942], 5.00th=[ 2868], 10.00th=[ 4178], 20.00th=[ 6587], | 30.00th=[ 10945], 40.00th=[ 17695], 50.00th=[ 25297], 60.00th=[ 32375], | 70.00th=[ 40633], 80.00th=[ 60556], 90.00th=[ 81265], 95.00th=[ 92799], | 99.00th=[131597], 99.50th=[137364], 99.90th=[166724], 99.95th=[166724], | 99.99th=[166724] bw ( KiB/s): min= 31, max= 477, per=26.52%, avg=222.49, stdev=93.44, samples=57 iops : min= 1, max= 29, avg=13.14, stdev= 5.90, samples=57 lat (usec) : 50=0.13%, 100=2.21%, 250=0.91%, 500=0.26% lat (msec) : 2=1.56%, 4=3.52%, 10=10.42%, 20=11.33%, 50=42.84% lat (msec) : 100=23.31%, 250=3.52% cpu : usr=0.08%, sys=6.89%, ctx=1894, 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=179254: Mon Sep 7 13:44:08 2026 read: IOPS=13, BW=214KiB/s (219kB/s)(6256KiB/29265msec) clat (usec): min=44, max=217662, avg=40553.94, stdev=28311.47 lat (usec): min=44, max=217665, avg=40556.23, stdev=28312.03 clat percentiles (usec): | 1.00th=[ 59], 5.00th=[ 81], 10.00th=[ 359], 20.00th=[ 21365], | 30.00th=[ 25822], 40.00th=[ 32113], 50.00th=[ 36963], 60.00th=[ 42730], | 70.00th=[ 49546], 80.00th=[ 57934], 90.00th=[ 70779], 95.00th=[ 86508], | 99.00th=[143655], 99.50th=[179307], 99.90th=[217056], 99.95th=[217056], | 99.99th=[217056] bw ( KiB/s): min= 93, max= 384, per=27.07%, avg=215.77, stdev=67.83, samples=57 iops : min= 5, max= 24, avg=12.72, stdev= 4.28, samples=57 write: IOPS=12, BW=206KiB/s (211kB/s)(6032KiB/29265msec); 0 zone resets clat (usec): min=1653, max=155634, avg=34799.78, stdev=30957.96 lat (usec): min=1654, max=155637, avg=34803.53, stdev=30958.23 clat percentiles (usec): | 1.00th=[ 1958], 5.00th=[ 3130], 10.00th=[ 4178], 20.00th=[ 6915], | 30.00th=[ 11863], 40.00th=[ 20579], 50.00th=[ 27132], 60.00th=[ 34341], | 70.00th=[ 42730], 80.00th=[ 58983], 90.00th=[ 80217], 95.00th=[ 96994], | 99.00th=[129500], 99.50th=[143655], 99.90th=[156238], 99.95th=[156238], | 99.99th=[156238] bw ( KiB/s): min= 63, max= 441, per=24.42%, avg=204.91, stdev=80.43, samples=57 iops : min= 3, max= 27, avg=12.04, stdev= 5.13, samples=57 lat (usec) : 50=0.13%, 100=3.39%, 250=1.43%, 500=0.39%, 750=0.13% lat (msec) : 2=0.52%, 4=3.78%, 10=9.51%, 20=9.51%, 50=43.62% lat (msec) : 100=23.70%, 250=3.91% cpu : usr=0.09%, sys=6.95%, ctx=1942, 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=179256: Mon Sep 7 13:44:08 2026 read: IOPS=13, BW=216KiB/s (221kB/s)(6032KiB/27953msec) clat (usec): min=41, max=164046, avg=40524.72, stdev=25501.62 lat (usec): min=41, max=164048, avg=40532.89, stdev=25499.59 clat percentiles (usec): | 1.00th=[ 58], 5.00th=[ 72], 10.00th=[ 110], 20.00th=[ 20841], | 30.00th=[ 27657], 40.00th=[ 33162], 50.00th=[ 39060], 60.00th=[ 46400], | 70.00th=[ 51643], 80.00th=[ 59507], 90.00th=[ 69731], 95.00th=[ 81265], | 99.00th=[113771], 99.50th=[160433], 99.90th=[164627], 99.95th=[164627], | 99.99th=[164627] bw ( KiB/s): min= 64, max= 382, per=27.13%, avg=216.25, stdev=74.30, samples=55 iops : min= 4, max= 23, avg=12.75, stdev= 4.64, samples=55 write: IOPS=13, BW=224KiB/s (229kB/s)(6256KiB/27953msec); 0 zone resets clat (usec): min=1435, max=148324, avg=31569.29, stdev=28691.70 lat (usec): min=1437, max=148327, avg=31588.22, stdev=28688.32 clat percentiles (usec): | 1.00th=[ 1778], 5.00th=[ 2671], 10.00th=[ 3785], 20.00th=[ 5669], | 30.00th=[ 9896], 40.00th=[ 17171], 50.00th=[ 23987], 60.00th=[ 32113], | 70.00th=[ 40109], 80.00th=[ 50594], 90.00th=[ 70779], 95.00th=[ 90702], | 99.00th=[117965], 99.50th=[141558], 99.90th=[147850], 99.95th=[147850], | 99.99th=[147850] bw ( KiB/s): min= 95, max= 416, per=26.79%, avg=224.75, stdev=77.11, samples=55 iops : min= 5, max= 26, avg=13.29, stdev= 4.86, samples=55 lat (usec) : 50=0.26%, 100=4.56%, 250=0.52%, 500=0.13%, 1000=0.26% lat (msec) : 2=0.91%, 4=4.82%, 10=9.77%, 20=10.42%, 50=41.67% lat (msec) : 100=23.96%, 250=2.73% cpu : usr=0.08%, sys=7.34%, ctx=1921, 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=798KiB/s (817kB/s), 197KiB/s-216KiB/s (201kB/s-221kB/s), io=23.4MiB (24.5MB), run=27953-30017msec WRITE: bw=840KiB/s (860kB/s), 206KiB/s-224KiB/s (211kB/s-229kB/s), io=24.6MiB (25.8MB), run=27953-30017msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179252: Mon Sep 7 13:44:19 2026 read: IOPS=9, BW=145KiB/s (149kB/s)(5920KiB/40736msec) clat (msec): min=9, max=186, avg=42.09, stdev=33.39 lat (msec): min=9, max=186, avg=42.09, stdev=33.39 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 14], 10.00th=[ 16], 20.00th=[ 19], | 30.00th=[ 22], 40.00th=[ 25], 50.00th=[ 31], 60.00th=[ 37], | 70.00th=[ 44], 80.00th=[ 58], 90.00th=[ 94], 95.00th=[ 120], | 99.00th=[ 159], 99.50th=[ 184], 99.90th=[ 188], 99.95th=[ 188], | 99.99th=[ 188] bw ( KiB/s): min= 31, max= 416, per=25.34%, avg=147.97, stdev=77.71, samples=78 iops : min= 1, max= 26, avg= 8.50, stdev= 4.89, samples=78 write: IOPS=9, BW=156KiB/s (160kB/s)(6368KiB/40736msec); 0 zone resets clat (msec): min=14, max=220, avg=62.89, stdev=35.56 lat (msec): min=14, max=220, avg=62.90, stdev=35.57 clat percentiles (msec): | 1.00th=[ 20], 5.00th=[ 26], 10.00th=[ 30], 20.00th=[ 35], | 30.00th=[ 40], 40.00th=[ 46], 50.00th=[ 52], 60.00th=[ 61], | 70.00th=[ 72], 80.00th=[ 89], 90.00th=[ 110], 95.00th=[ 138], | 99.00th=[ 184], 99.50th=[ 215], 99.90th=[ 222], 99.95th=[ 222], | 99.99th=[ 222] bw ( KiB/s): min= 31, max= 351, per=25.39%, avg=156.15, stdev=71.09, samples=80 iops : min= 1, max= 21, avg= 9.00, stdev= 4.46, samples=80 lat (msec) : 10=0.13%, 20=12.37%, 50=48.70%, 100=28.26%, 250=10.55% cpu : usr=0.06%, sys=2.32%, ctx=1133, 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=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=179255: Mon Sep 7 13:44:19 2026 read: IOPS=8, BW=140KiB/s (144kB/s)(5744KiB/40945msec) clat (msec): min=8, max=264, avg=44.11, stdev=36.45 lat (msec): min=8, max=264, avg=44.11, stdev=36.45 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 13], 10.00th=[ 16], 20.00th=[ 20], | 30.00th=[ 23], 40.00th=[ 27], 50.00th=[ 32], 60.00th=[ 37], | 70.00th=[ 48], 80.00th=[ 63], 90.00th=[ 91], 95.00th=[ 130], | 99.00th=[ 180], 99.50th=[ 194], 99.90th=[ 266], 99.95th=[ 266], | 99.99th=[ 266] bw ( KiB/s): min= 23, max= 383, per=24.13%, avg=140.92, stdev=80.26, samples=79 iops : min= 1, max= 23, avg= 8.05, stdev= 5.04, samples=79 write: IOPS=9, BW=160KiB/s (164kB/s)(6544KiB/40945msec); 0 zone resets clat (msec): min=17, max=197, avg=60.76, stdev=33.40 lat (msec): min=17, max=197, avg=60.76, stdev=33.40 clat percentiles (msec): | 1.00th=[ 21], 5.00th=[ 25], 10.00th=[ 29], 20.00th=[ 33], | 30.00th=[ 40], 40.00th=[ 45], 50.00th=[ 52], 60.00th=[ 60], | 70.00th=[ 71], 80.00th=[ 85], 90.00th=[ 107], 95.00th=[ 125], | 99.00th=[ 180], 99.50th=[ 194], 99.90th=[ 199], 99.95th=[ 199], | 99.99th=[ 199] bw ( KiB/s): min= 31, max= 351, per=25.67%, avg=157.86, stdev=74.59, samples=80 iops : min= 1, max= 21, avg= 9.11, stdev= 4.71, samples=80 lat (msec) : 10=0.65%, 20=9.64%, 50=49.48%, 100=29.69%, 250=10.42% lat (msec) : 500=0.13% cpu : usr=0.08%, sys=2.22%, ctx=1199, 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=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=179257: Mon Sep 7 13:44:19 2026 read: IOPS=9, BW=155KiB/s (159kB/s)(6256KiB/40274msec) clat (msec): min=6, max=202, avg=41.39, stdev=30.26 lat (msec): min=6, max=202, avg=41.39, stdev=30.26 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 14], 10.00th=[ 16], 20.00th=[ 20], | 30.00th=[ 24], 40.00th=[ 27], 50.00th=[ 32], 60.00th=[ 38], | 70.00th=[ 47], 80.00th=[ 57], 90.00th=[ 85], 95.00th=[ 107], | 99.00th=[ 150], 99.50th=[ 159], 99.90th=[ 203], 99.95th=[ 203], | 99.99th=[ 203] bw ( KiB/s): min= 31, max= 541, per=27.12%, avg=158.37, stdev=94.03, samples=78 iops : min= 1, max= 33, avg= 9.14, stdev= 5.90, samples=78 write: IOPS=9, BW=150KiB/s (153kB/s)(6032KiB/40274msec); 0 zone resets clat (msec): min=13, max=210, avg=62.93, stdev=35.17 lat (msec): min=13, max=210, avg=62.94, stdev=35.18 clat percentiles (msec): | 1.00th=[ 21], 5.00th=[ 26], 10.00th=[ 28], 20.00th=[ 34], | 30.00th=[ 40], 40.00th=[ 46], 50.00th=[ 53], 60.00th=[ 62], | 70.00th=[ 71], 80.00th=[ 89], 90.00th=[ 114], 95.00th=[ 138], | 99.00th=[ 171], 99.50th=[ 201], 99.90th=[ 211], 99.95th=[ 211], | 99.99th=[ 211] bw ( KiB/s): min= 46, max= 319, per=24.27%, avg=149.25, stdev=62.59, samples=79 iops : min= 2, max= 19, avg= 8.57, stdev= 3.95, samples=79 lat (msec) : 10=0.26%, 20=11.72%, 50=47.79%, 100=30.21%, 250=10.03% cpu : usr=0.05%, sys=2.25%, ctx=1146, 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=179258: Mon Sep 7 13:44:19 2026 read: IOPS=9, BW=148KiB/s (151kB/s)(6032KiB/40801msec) clat (msec): min=7, max=219, avg=44.25, stdev=34.97 lat (msec): min=7, max=219, avg=44.25, stdev=34.97 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 14], 10.00th=[ 16], 20.00th=[ 20], | 30.00th=[ 24], 40.00th=[ 28], 50.00th=[ 34], 60.00th=[ 40], | 70.00th=[ 50], 80.00th=[ 63], 90.00th=[ 91], 95.00th=[ 118], | 99.00th=[ 205], 99.50th=[ 209], 99.90th=[ 220], 99.95th=[ 220], | 99.99th=[ 220] bw ( KiB/s): min= 31, max= 415, per=25.77%, avg=150.53, stdev=78.05, samples=78 iops : min= 1, max= 25, avg= 8.65, stdev= 4.89, samples=78 write: IOPS=9, BW=153KiB/s (157kB/s)(6256KiB/40801msec); 0 zone resets clat (msec): min=14, max=228, avg=60.76, stdev=35.82 lat (msec): min=14, max=228, avg=60.76, stdev=35.82 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 23], 10.00th=[ 27], 20.00th=[ 34], | 30.00th=[ 39], 40.00th=[ 44], 50.00th=[ 52], 60.00th=[ 58], | 70.00th=[ 72], 80.00th=[ 86], 90.00th=[ 106], 95.00th=[ 134], | 99.00th=[ 192], 99.50th=[ 220], 99.90th=[ 228], 99.95th=[ 228], | 99.99th=[ 228] bw ( KiB/s): min= 31, max= 348, per=25.15%, avg=154.70, stdev=74.88, samples=79 iops : min= 1, max= 21, avg= 8.92, stdev= 4.71, samples=79 lat (msec) : 10=1.56%, 20=10.16%, 50=47.92%, 100=30.21%, 250=10.16% cpu : usr=0.07%, sys=2.18%, ctx=1195, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=585KiB/s (599kB/s), 140KiB/s-155KiB/s (144kB/s-159kB/s), io=23.4MiB (24.5MB), run=40274-40945msec WRITE: bw=615KiB/s (630kB/s), 150KiB/s-160KiB/s (153kB/s-164kB/s), io=24.6MiB (25.8MB), run=40274-40945msec 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=179270: Mon Sep 7 13:44:34 2026 read: IOPS=2, BW=2801KiB/s (2868kB/s)(7168KiB/2559msec) clat (msec): min=74, max=188, avg=145.80, stdev=38.54 lat (msec): min=74, max=188, avg=145.80, stdev=38.54 clat percentiles (msec): | 1.00th=[ 74], 5.00th=[ 74], 10.00th=[ 74], 20.00th=[ 126], | 30.00th=[ 146], 40.00th=[ 146], 50.00th=[ 150], 60.00th=[ 153], | 70.00th=[ 153], 80.00th=[ 184], 90.00th=[ 188], 95.00th=[ 188], | 99.00th=[ 188], 99.50th=[ 188], 99.90th=[ 188], 99.95th=[ 188], | 99.99th=[ 188] bw ( KiB/s): min= 2039, max= 4432, per=79.82%, avg=3522.33, stdev=1295.54, samples=3 iops : min= 1, max= 4, avg= 3.00, stdev= 1.73, samples=3 write: IOPS=1, BW=2001KiB/s (2049kB/s)(5120KiB/2559msec); 0 zone resets clat (msec): min=155, max=542, avg=279.74, stdev=165.95 lat (msec): min=155, max=543, avg=279.99, stdev=166.27 clat percentiles (msec): | 1.00th=[ 157], 5.00th=[ 157], 10.00th=[ 157], 20.00th=[ 157], | 30.00th=[ 159], 40.00th=[ 159], 50.00th=[ 199], 60.00th=[ 199], | 70.00th=[ 342], 80.00th=[ 342], 90.00th=[ 542], 95.00th=[ 542], | 99.00th=[ 542], 99.50th=[ 542], 99.90th=[ 542], 99.95th=[ 542], | 99.99th=[ 542] bw ( KiB/s): min= 2048, max= 6059, per=65.60%, avg=4053.50, stdev=2836.21, samples=2 iops : min= 2, max= 5, avg= 3.50, stdev= 2.12, samples=2 lat (msec) : 100=8.33%, 250=75.00%, 500=8.33%, 750=8.33% cpu : usr=0.00%, sys=5.63%, ctx=88, 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=179272: Mon Sep 7 13:44:34 2026 read: IOPS=0, BW=442KiB/s (453kB/s)(2048KiB/4631msec) clat (msec): min=139, max=148, avg=143.93, stdev= 5.98 lat (msec): min=139, max=148, avg=143.93, stdev= 5.98 clat percentiles (msec): | 1.00th=[ 140], 5.00th=[ 140], 10.00th=[ 140], 20.00th=[ 140], | 30.00th=[ 140], 40.00th=[ 140], 50.00th=[ 140], 60.00th=[ 148], | 70.00th=[ 148], 80.00th=[ 148], 90.00th=[ 148], 95.00th=[ 148], | 99.00th=[ 148], 99.50th=[ 148], 99.90th=[ 148], 99.95th=[ 148], | 99.99th=[ 148] bw ( KiB/s): min= 1416, max= 2035, per=39.10%, avg=1725.50, stdev=437.70, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2211KiB/s (2264kB/s)(10.0MiB/4631msec); 0 zone resets clat (msec): min=180, max=1120, avg=429.72, stdev=301.94 lat (msec): min=180, max=1120, avg=429.81, stdev=301.94 clat percentiles (msec): | 1.00th=[ 182], 5.00th=[ 182], 10.00th=[ 182], 20.00th=[ 186], | 30.00th=[ 192], 40.00th=[ 215], 50.00th=[ 300], 60.00th=[ 363], | 70.00th=[ 460], 80.00th=[ 575], 90.00th=[ 701], 95.00th=[ 1116], | 99.00th=[ 1116], 99.50th=[ 1116], 99.90th=[ 1116], 99.95th=[ 1116], | 99.99th=[ 1116] bw ( KiB/s): min= 1416, max= 4071, per=42.09%, avg=2600.67, stdev=1145.53, samples=6 iops : min= 1, max= 3, avg= 1.83, stdev= 0.98, samples=6 lat (msec) : 250=50.00%, 500=25.00%, 750=16.67%, 2000=8.33% cpu : usr=0.06%, sys=7.11%, ctx=130, 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=179274: Mon Sep 7 13:44:34 2026 read: IOPS=1, BW=1324KiB/s (1356kB/s)(6144KiB/4640msec) clat (msec): min=145, max=804, avg=380.93, stdev=287.24 lat (msec): min=145, max=804, avg=380.93, stdev=287.24 clat percentiles (msec): | 1.00th=[ 146], 5.00th=[ 146], 10.00th=[ 146], 20.00th=[ 150], | 30.00th=[ 150], 40.00th=[ 180], 50.00th=[ 180], 60.00th=[ 338], | 70.00th=[ 667], 80.00th=[ 667], 90.00th=[ 802], 95.00th=[ 802], | 99.00th=[ 802], 99.50th=[ 802], 99.90th=[ 802], 99.95th=[ 802], | 99.99th=[ 802] bw ( KiB/s): min= 2015, max= 2048, per=46.10%, avg=2034.60, stdev=14.15, samples=5 iops : min= 1, max= 2, avg= 1.40, stdev= 0.55, samples=5 write: IOPS=1, BW=1324KiB/s (1356kB/s)(6144KiB/4640msec); 0 zone resets clat (msec): min=159, max=760, avg=387.02, stdev=222.93 lat (msec): min=159, max=760, avg=387.10, stdev=222.95 clat percentiles (msec): | 1.00th=[ 161], 5.00th=[ 161], 10.00th=[ 161], 20.00th=[ 182], | 30.00th=[ 182], 40.00th=[ 313], 50.00th=[ 313], 60.00th=[ 456], | 70.00th=[ 456], 80.00th=[ 456], 90.00th=[ 760], 95.00th=[ 760], | 99.00th=[ 760], 99.50th=[ 760], 99.90th=[ 760], 99.95th=[ 760], | 99.99th=[ 760] bw ( KiB/s): min= 2019, max= 3900, per=38.97%, avg=2408.20, stdev=834.01, samples=5 iops : min= 1, max= 3, avg= 1.60, stdev= 0.89, samples=5 lat (msec) : 250=41.67%, 500=33.33%, 750=8.33%, 1000=16.67% cpu : usr=0.00%, sys=4.01%, ctx=109, 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=179276: Mon Sep 7 13:44:34 2026 read: IOPS=1, BW=1320KiB/s (1352kB/s)(5120KiB/3878msec) clat (msec): min=98, max=510, avg=261.21, stdev=172.48 lat (msec): min=98, max=510, avg=261.21, stdev=172.48 clat percentiles (msec): | 1.00th=[ 99], 5.00th=[ 99], 10.00th=[ 99], 20.00th=[ 99], | 30.00th=[ 103], 40.00th=[ 103], 50.00th=[ 264], 60.00th=[ 264], | 70.00th=[ 330], 80.00th=[ 330], 90.00th=[ 510], 95.00th=[ 510], | 99.00th=[ 510], 99.50th=[ 510], 99.90th=[ 510], 99.95th=[ 510], | 99.99th=[ 510] bw ( KiB/s): min= 2048, max= 6107, per=92.40%, avg=4077.50, stdev=2870.15, samples=2 iops : min= 2, max= 5, avg= 3.50, stdev= 2.12, samples=2 write: IOPS=1, BW=1848KiB/s (1893kB/s)(7168KiB/3878msec); 0 zone resets clat (msec): min=122, max=668, avg=344.67, stdev=225.77 lat (msec): min=122, max=668, avg=344.80, stdev=225.71 clat percentiles (msec): | 1.00th=[ 123], 5.00th=[ 123], 10.00th=[ 123], 20.00th=[ 133], | 30.00th=[ 150], 40.00th=[ 150], 50.00th=[ 305], 60.00th=[ 460], | 70.00th=[ 460], 80.00th=[ 575], 90.00th=[ 667], 95.00th=[ 667], | 99.00th=[ 667], 99.50th=[ 667], 99.90th=[ 667], 99.95th=[ 667], | 99.99th=[ 667] bw ( KiB/s): min= 2027, max= 3703, per=39.70%, avg=2453.25, stdev=833.21, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 lat (msec) : 100=8.33%, 250=33.33%, 500=33.33%, 750=25.00% cpu : usr=0.03%, sys=5.44%, ctx=111, 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=4414KiB/s (4520kB/s), 442KiB/s-2801KiB/s (453kB/s-2868kB/s), io=20.0MiB (20.0MB), run=2559-4640msec WRITE: bw=6179KiB/s (6328kB/s), 1324KiB/s-2211KiB/s (1356kB/s-2264kB/s), io=28.0MiB (29.4MB), run=2559-4640msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179271: Mon Sep 7 13:44:34 2026 read: IOPS=1, BW=2011KiB/s (2059kB/s)(7168KiB/3564msec) clat (usec): min=706, max=538939, avg=227325.54, stdev=197001.87 lat (usec): min=707, max=538940, avg=227326.77, stdev=197001.89 clat percentiles (usec): | 1.00th=[ 709], 5.00th=[ 709], 10.00th=[ 709], 20.00th=[ 3556], | 30.00th=[156238], 40.00th=[156238], 50.00th=[204473], 60.00th=[316670], | 70.00th=[316670], 80.00th=[371196], 90.00th=[541066], 95.00th=[541066], | 99.00th=[541066], 99.50th=[541066], 99.90th=[541066], 99.95th=[541066], | 99.99th=[541066] bw ( KiB/s): min= 1456, max= 4063, per=73.45%, avg=3191.33, stdev=1502.85, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=1, BW=1437KiB/s (1471kB/s)(5120KiB/3564msec); 0 zone resets clat (msec): min=183, max=605, avg=330.59, stdev=160.50 lat (msec): min=183, max=605, avg=330.67, stdev=160.48 clat percentiles (msec): | 1.00th=[ 184], 5.00th=[ 184], 10.00th=[ 184], 20.00th=[ 184], | 30.00th=[ 275], 40.00th=[ 275], 50.00th=[ 279], 60.00th=[ 279], | 70.00th=[ 313], 80.00th=[ 313], 90.00th=[ 609], 95.00th=[ 609], | 99.00th=[ 609], 99.50th=[ 609], 99.90th=[ 609], 99.95th=[ 609], | 99.99th=[ 609] bw ( KiB/s): min= 2027, max= 4015, per=44.30%, avg=2695.00, stdev=1143.18, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (usec) : 750=8.33% lat (msec) : 4=8.33%, 250=25.00%, 500=41.67%, 750=16.67% cpu : usr=0.00%, sys=15.83%, ctx=202, 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=179273: Mon Sep 7 13:44:34 2026 read: IOPS=0, BW=435KiB/s (445kB/s)(2048KiB/4713msec) clat (usec): min=553, max=562626, avg=281590.29, stdev=397445.59 lat (usec): min=555, max=562629, avg=281592.45, stdev=397446.11 clat percentiles (usec): | 1.00th=[ 553], 5.00th=[ 553], 10.00th=[ 553], 20.00th=[ 553], | 30.00th=[ 553], 40.00th=[ 553], 50.00th=[ 553], 60.00th=[566232], | 70.00th=[566232], 80.00th=[566232], 90.00th=[566232], 95.00th=[566232], | 99.00th=[566232], 99.50th=[566232], 99.90th=[566232], 99.95th=[566232], | 99.99th=[566232] bw ( KiB/s): min= 2031, max= 2043, per=46.88%, avg=2037.00, stdev= 8.49, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2173KiB/s (2225kB/s)(10.0MiB/4713msec); 0 zone resets clat (msec): min=91, max=683, avg=377.55, stdev=178.57 lat (msec): min=91, max=683, avg=377.64, stdev=178.55 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 91], 10.00th=[ 91], 20.00th=[ 222], | 30.00th=[ 266], 40.00th=[ 288], 50.00th=[ 326], 60.00th=[ 342], | 70.00th=[ 498], 80.00th=[ 502], 90.00th=[ 558], 95.00th=[ 684], | 99.00th=[ 684], 99.50th=[ 684], 99.90th=[ 684], 99.95th=[ 684], | 99.99th=[ 684] bw ( KiB/s): min= 1980, max= 4087, per=38.75%, avg=2357.17, stdev=847.62, samples=6 iops : min= 1, max= 3, avg= 1.33, stdev= 0.82, samples=6 lat (usec) : 750=8.33% lat (msec) : 100=8.33%, 250=8.33%, 500=50.00%, 750=25.00% cpu : usr=0.02%, sys=16.19%, ctx=130, 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=179275: Mon Sep 7 13:44:34 2026 read: IOPS=1, BW=1587KiB/s (1625kB/s)(6144KiB/3871msec) clat (usec): min=477, max=282649, avg=153225.71, stdev=124155.84 lat (usec): min=478, max=282650, avg=153226.88, stdev=124155.75 clat percentiles (usec): | 1.00th=[ 478], 5.00th=[ 478], 10.00th=[ 478], 20.00th=[ 791], | 30.00th=[ 791], 40.00th=[183501], 50.00th=[183501], 60.00th=[191890], | 70.00th=[258999], 80.00th=[258999], 90.00th=[283116], 95.00th=[283116], | 99.00th=[283116], 99.50th=[283116], 99.90th=[283116], 99.95th=[283116], | 99.99th=[283116] bw ( KiB/s): min= 2015, max= 4015, per=58.02%, avg=2521.00, stdev=996.02, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1587KiB/s (1625kB/s)(6144KiB/3871msec); 0 zone resets clat (msec): min=212, max=743, avg=457.79, stdev=238.08 lat (msec): min=212, max=743, avg=457.88, stdev=238.12 clat percentiles (msec): | 1.00th=[ 213], 5.00th=[ 213], 10.00th=[ 213], 20.00th=[ 268], | 30.00th=[ 268], 40.00th=[ 296], 50.00th=[ 296], 60.00th=[ 493], | 70.00th=[ 735], 80.00th=[ 735], 90.00th=[ 743], 95.00th=[ 743], | 99.00th=[ 743], 99.50th=[ 743], 99.90th=[ 743], 99.95th=[ 743], | 99.99th=[ 743] bw ( KiB/s): min= 2015, max= 2876, per=36.76%, avg=2236.25, stdev=426.54, samples=4 iops : min= 1, max= 2, avg= 1.25, stdev= 0.50, samples=4 lat (usec) : 500=8.33%, 1000=8.33% lat (msec) : 250=25.00%, 500=41.67%, 750=16.67% cpu : usr=0.00%, sys=13.72%, ctx=274, 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=179277: Mon Sep 7 13:44:34 2026 read: IOPS=1, BW=1242KiB/s (1272kB/s)(5120KiB/4121msec) clat (usec): min=473, max=267987, avg=119367.10, stdev=116699.89 lat (usec): min=475, max=267989, avg=119368.14, stdev=116699.93 clat percentiles (usec): | 1.00th=[ 474], 5.00th=[ 474], 10.00th=[ 474], 20.00th=[ 474], | 30.00th=[ 873], 40.00th=[ 873], 50.00th=[152044], 60.00th=[152044], | 70.00th=[175113], 80.00th=[175113], 90.00th=[267387], 95.00th=[267387], | 99.00th=[267387], 99.50th=[267387], 99.90th=[267387], 99.95th=[267387], | 99.99th=[267387] bw ( KiB/s): min= 8031, max= 8031, per=100.00%, avg=8031.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=1, BW=1739KiB/s (1781kB/s)(7168KiB/4121msec); 0 zone resets clat (msec): min=194, max=709, avg=491.20, stdev=206.39 lat (msec): min=194, max=710, avg=491.41, stdev=206.54 clat percentiles (msec): | 1.00th=[ 194], 5.00th=[ 194], 10.00th=[ 194], 20.00th=[ 264], | 30.00th=[ 405], 40.00th=[ 405], 50.00th=[ 575], 60.00th=[ 592], | 70.00th=[ 592], 80.00th=[ 701], 90.00th=[ 709], 95.00th=[ 709], | 99.00th=[ 709], 99.50th=[ 709], 99.90th=[ 709], 99.95th=[ 709], | 99.99th=[ 709] bw ( KiB/s): min= 2027, max= 4055, per=41.74%, avg=2539.00, stdev=1010.69, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (usec) : 500=8.33%, 1000=8.33% lat (msec) : 250=25.00%, 500=25.00%, 750=33.33% cpu : usr=0.00%, sys=13.67%, ctx=154, 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=4345KiB/s (4450kB/s), 435KiB/s-2011KiB/s (445kB/s-2059kB/s), io=20.0MiB (20.0MB), run=3564-4713msec WRITE: bw=6084KiB/s (6230kB/s), 1437KiB/s-2173KiB/s (1471kB/s-2225kB/s), io=28.0MiB (29.4MB), run=3564-4713msec 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=179284: Mon Sep 7 13:44:47 2026 read: IOPS=1, BW=4310KiB/s (4414kB/s)(12.0MiB/2851msec) clat (msec): min=374, max=1510, avg=851.60, stdev=589.47 lat (msec): min=374, max=1510, avg=851.60, stdev=589.47 clat percentiles (msec): | 1.00th=[ 376], 5.00th=[ 376], 10.00th=[ 376], 20.00th=[ 376], | 30.00th=[ 376], 40.00th=[ 667], 50.00th=[ 667], 60.00th=[ 667], | 70.00th=[ 1519], 80.00th=[ 1519], 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= 8126, max= 8143, per=100.00%, avg=8134.50, stdev=12.02, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.00%, sys=4.56%, ctx=67, 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=179286: Mon Sep 7 13:44:47 2026 read: IOPS=0, BW=1375KiB/s (1408kB/s)(4096KiB/2979msec) clat (nsec): min=922266k, max=922266k, avg=922265770.00, stdev= 0.00 lat (nsec): min=922268k, max=922268k, avg=922268484.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 919], 5.00th=[ 919], 10.00th=[ 919], 20.00th=[ 919], | 30.00th=[ 919], 40.00th=[ 919], 50.00th=[ 919], 60.00th=[ 919], | 70.00th=[ 919], 80.00th=[ 919], 90.00th=[ 919], 95.00th=[ 919], | 99.00th=[ 919], 99.50th=[ 919], 99.90th=[ 919], 99.95th=[ 919], | 99.99th=[ 919] bw ( KiB/s): min= 8126, max= 8126, per=100.00%, avg=8126.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2750KiB/s (2816kB/s)(8192KiB/2979msec); 0 zone resets clat (msec): min=670, max=1056, avg=863.55, stdev=272.60 lat (msec): min=671, max=1056, avg=864.16, stdev=272.71 clat percentiles (msec): | 1.00th=[ 667], 5.00th=[ 667], 10.00th=[ 667], 20.00th=[ 667], | 30.00th=[ 667], 40.00th=[ 667], 50.00th=[ 667], 60.00th=[ 1053], | 70.00th=[ 1053], 80.00th=[ 1053], 90.00th=[ 1053], 95.00th=[ 1053], | 99.00th=[ 1053], 99.50th=[ 1053], 99.90th=[ 1053], 99.95th=[ 1053], | 99.99th=[ 1053] bw ( KiB/s): min= 8175, max= 8175, per=84.13%, avg=8175.00, 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=6.04%, ctx=83, 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=179288: Mon Sep 7 13:44:47 2026 write: IOPS=0, BW=3644KiB/s (3732kB/s)(12.0MiB/3372msec); 0 zone resets clat (msec): min=190, max=1594, avg=1028.17, stdev=740.24 lat (msec): min=190, max=1595, avg=1028.89, stdev=740.70 clat percentiles (msec): | 1.00th=[ 190], 5.00th=[ 190], 10.00th=[ 190], 20.00th=[ 190], | 30.00th=[ 190], 40.00th=[ 1301], 50.00th=[ 1301], 60.00th=[ 1301], | 70.00th=[ 1603], 80.00th=[ 1603], 90.00th=[ 1603], 95.00th=[ 1603], | 99.00th=[ 1603], 99.50th=[ 1603], 99.90th=[ 1603], 99.95th=[ 1603], | 99.99th=[ 1603] bw ( KiB/s): min= 8175, max= 8175, per=84.13%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 2000=66.67% cpu : usr=0.00%, sys=4.00%, ctx=40, 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=179290: Mon Sep 7 13:44:47 2026 write: IOPS=1, BW=5535KiB/s (5668kB/s)(12.0MiB/2220msec); 0 zone resets clat (msec): min=279, max=1307, avg=643.45, stdev=575.80 lat (msec): min=280, max=1307, avg=643.80, stdev=575.72 clat percentiles (msec): | 1.00th=[ 279], 5.00th=[ 279], 10.00th=[ 279], 20.00th=[ 279], | 30.00th=[ 279], 40.00th=[ 342], 50.00th=[ 342], 60.00th=[ 342], | 70.00th=[ 1301], 80.00th=[ 1301], 90.00th=[ 1301], 95.00th=[ 1301], | 99.00th=[ 1301], 99.50th=[ 1301], 99.90th=[ 1301], 99.95th=[ 1301], | 99.99th=[ 1301] bw ( KiB/s): min= 6282, max= 8143, per=74.23%, avg=7212.50, stdev=1315.93, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=66.67%, 2000=33.33% cpu : usr=0.05%, sys=7.08%, ctx=90, 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=5500KiB/s (5632kB/s), 1375KiB/s-4310KiB/s (1408kB/s-4414kB/s), io=16.0MiB (16.8MB), run=2851-2979msec WRITE: bw=9718KiB/s (9951kB/s), 2750KiB/s-5535KiB/s (2816kB/s-5668kB/s), io=32.0MiB (33.6MB), run=2220-3372msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179285: Mon Sep 7 13:44:47 2026 read: IOPS=1, BW=4521KiB/s (4629kB/s)(12.0MiB/2718msec) clat (msec): min=672, max=996, avg=811.94, stdev=166.76 lat (msec): min=672, max=996, avg=811.94, stdev=166.76 clat percentiles (msec): | 1.00th=[ 676], 5.00th=[ 676], 10.00th=[ 676], 20.00th=[ 676], | 30.00th=[ 676], 40.00th=[ 768], 50.00th=[ 768], 60.00th=[ 768], | 70.00th=[ 995], 80.00th=[ 995], 90.00th=[ 995], 95.00th=[ 995], | 99.00th=[ 995], 99.50th=[ 995], 99.90th=[ 995], 99.95th=[ 995], | 99.99th=[ 995] bw ( KiB/s): min= 8078, max= 8175, per=100.00%, avg=8126.50, stdev=68.59, 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=15.13%, ctx=376, 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=179287: Mon Sep 7 13:44:47 2026 read: IOPS=0, BW=1675KiB/s (1715kB/s)(4096KiB/2446msec) clat (nsec): min=792565k, max=792565k, avg=792564566.00, stdev= 0.00 lat (nsec): min=792567k, max=792567k, avg=792567368.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 793], 5.00th=[ 793], 10.00th=[ 793], 20.00th=[ 793], | 30.00th=[ 793], 40.00th=[ 793], 50.00th=[ 793], 60.00th=[ 793], | 70.00th=[ 793], 80.00th=[ 793], 90.00th=[ 793], 95.00th=[ 793], | 99.00th=[ 793], 99.50th=[ 793], 99.90th=[ 793], 99.95th=[ 793], | 99.99th=[ 793] bw ( KiB/s): min= 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=3349KiB/s (3430kB/s)(8192KiB/2446msec); 0 zone resets clat (msec): min=514, max=879, avg=696.56, stdev=258.09 lat (msec): min=514, max=879, avg=697.02, stdev=258.06 clat percentiles (msec): | 1.00th=[ 514], 5.00th=[ 514], 10.00th=[ 514], 20.00th=[ 514], | 30.00th=[ 514], 40.00th=[ 514], 50.00th=[ 514], 60.00th=[ 877], | 70.00th=[ 877], 80.00th=[ 877], 90.00th=[ 877], 95.00th=[ 877], | 99.00th=[ 877], 99.50th=[ 877], 99.90th=[ 877], 99.95th=[ 877], | 99.99th=[ 877] bw ( KiB/s): min= 7922, max= 7922, per=83.42%, 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=66.67% cpu : usr=0.00%, sys=5.03%, ctx=95, 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=179289: Mon Sep 7 13:44:47 2026 write: IOPS=0, BW=3562KiB/s (3647kB/s)(12.0MiB/3450msec); 0 zone resets clat (msec): min=733, max=1383, avg=1061.25, stdev=325.36 lat (msec): min=733, max=1384, avg=1062.13, stdev=325.59 clat percentiles (msec): | 1.00th=[ 735], 5.00th=[ 735], 10.00th=[ 735], 20.00th=[ 735], | 30.00th=[ 735], 40.00th=[ 1070], 50.00th=[ 1070], 60.00th=[ 1070], | 70.00th=[ 1385], 80.00th=[ 1385], 90.00th=[ 1385], 95.00th=[ 1385], | 99.00th=[ 1385], 99.50th=[ 1385], 99.90th=[ 1385], 99.95th=[ 1385], | 99.99th=[ 1385] bw ( KiB/s): min= 8078, max= 8159, per=85.48%, avg=8118.50, stdev=57.28, 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=5.39%, ctx=93, 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=179291: Mon Sep 7 13:44:47 2026 write: IOPS=1, BW=4752KiB/s (4866kB/s)(12.0MiB/2586msec); 0 zone resets clat (msec): min=361, max=1054, avg=735.97, stdev=350.01 lat (msec): min=362, max=1055, avg=736.36, stdev=349.90 clat percentiles (msec): | 1.00th=[ 363], 5.00th=[ 363], 10.00th=[ 363], 20.00th=[ 363], | 30.00th=[ 363], 40.00th=[ 793], 50.00th=[ 793], 60.00th=[ 793], | 70.00th=[ 1053], 80.00th=[ 1053], 90.00th=[ 1053], 95.00th=[ 1053], | 99.00th=[ 1053], 99.50th=[ 1053], 99.90th=[ 1053], 99.95th=[ 1053], | 99.99th=[ 1053] bw ( KiB/s): min= 8078, max= 8175, per=85.57%, avg=8126.50, stdev=68.59, 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=10.10%, ctx=116, 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=6028KiB/s (6173kB/s), 1675KiB/s-4521KiB/s (1715kB/s-4629kB/s), io=16.0MiB (16.8MB), run=2446-2718msec WRITE: bw=9498KiB/s (9726kB/s), 3349KiB/s-4752KiB/s (3430kB/s-4866kB/s), io=32.0MiB (33.6MB), run=2446-3450msec