== sanity test 398b: DIO and buffer IO race ============== 01:37:53 (1788845873) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 6.7571 s, 7.4 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=144805: Tue Sep 8 01:40:14 2026 read: IOPS=12, BW=50.9KiB/s (52.1kB/s)(5992KiB/117724msec) clat (usec): min=37, max=515118, avg=40166.99, stdev=33348.39 lat (usec): min=37, max=515120, avg=40169.50, stdev=33348.59 clat percentiles (usec): | 1.00th=[ 55], 5.00th=[ 68], 10.00th=[ 12518], 20.00th=[ 18744], | 30.00th=[ 23462], 40.00th=[ 28705], 50.00th=[ 33817], 60.00th=[ 40633], | 70.00th=[ 49021], 80.00th=[ 57410], 90.00th=[ 73925], 95.00th=[ 90702], | 99.00th=[139461], 99.50th=[162530], 99.90th=[467665], 99.95th=[513803], | 99.99th=[513803] bw ( KiB/s): min= 8, max= 125, per=24.91%, avg=50.57, stdev=20.33, samples=229 iops : min= 2, max= 31, avg=12.01, stdev= 5.13, samples=229 write: IOPS=13, BW=53.5KiB/s (54.8kB/s)(6296KiB/117724msec); 0 zone resets clat (usec): min=776, max=305536, avg=36183.52, stdev=37225.73 lat (usec): min=778, max=305538, avg=36186.43, stdev=37224.79 clat percentiles (usec): | 1.00th=[ 1106], 5.00th=[ 1287], 10.00th=[ 1500], 20.00th=[ 3589], | 30.00th=[ 7701], 40.00th=[ 15533], 50.00th=[ 26346], 60.00th=[ 36963], | 70.00th=[ 49021], 80.00th=[ 62129], 90.00th=[ 86508], 95.00th=[107480], | 99.00th=[166724], 99.50th=[183501], 99.90th=[265290], 99.95th=[304088], | 99.99th=[304088] bw ( KiB/s): min= 15, max= 119, per=24.99%, avg=52.98, stdev=20.37, samples=230 iops : min= 3, max= 29, avg=12.61, stdev= 5.14, samples=230 lat (usec) : 50=0.23%, 100=3.26%, 250=0.26%, 500=0.07%, 750=0.03% lat (usec) : 1000=0.26% lat (msec) : 2=6.71%, 4=4.23%, 10=6.45%, 20=12.50%, 50=36.95% lat (msec) : 100=24.15%, 250=4.75%, 500=0.13%, 750=0.03% cpu : usr=0.09%, sys=5.67%, ctx=6535, 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=144806: Tue Sep 8 01:40:14 2026 read: IOPS=12, BW=50.8KiB/s (52.1kB/s)(5940KiB/116839msec) clat (usec): min=31, max=293210, avg=37971.14, stdev=26490.33 lat (usec): min=31, max=293211, avg=37974.84, stdev=26488.91 clat percentiles (usec): | 1.00th=[ 54], 5.00th=[ 69], 10.00th=[ 11338], 20.00th=[ 19268], | 30.00th=[ 23725], 40.00th=[ 27657], 50.00th=[ 32637], 60.00th=[ 39060], | 70.00th=[ 46400], 80.00th=[ 55313], 90.00th=[ 69731], 95.00th=[ 86508], | 99.00th=[129500], 99.50th=[139461], 99.90th=[208667], 99.95th=[291505], | 99.99th=[291505] bw ( KiB/s): min= 5, max= 120, per=25.04%, avg=50.83, stdev=20.39, samples=228 iops : min= 1, max= 30, avg=12.07, stdev= 5.12, samples=228 write: IOPS=13, BW=54.3KiB/s (55.6kB/s)(6348KiB/116839msec); 0 zone resets clat (usec): min=854, max=580534, avg=37760.84, stdev=42917.26 lat (usec): min=855, max=580535, avg=37764.63, stdev=42916.16 clat percentiles (usec): | 1.00th=[ 1090], 5.00th=[ 1254], 10.00th=[ 1532], 20.00th=[ 3982], | 30.00th=[ 8717], 40.00th=[ 17695], 50.00th=[ 27132], 60.00th=[ 37487], | 70.00th=[ 47973], 80.00th=[ 63701], 90.00th=[ 85459], 95.00th=[109577], | 99.00th=[198181], 99.50th=[242222], 99.90th=[417334], 99.95th=[583009], | 99.99th=[583009] bw ( KiB/s): min= 5, max= 111, per=25.43%, avg=53.92, stdev=21.40, samples=230 iops : min= 1, max= 27, avg=12.86, stdev= 5.39, samples=230 lat (usec) : 50=0.29%, 100=3.52%, 250=0.20%, 500=0.10%, 750=0.13% lat (usec) : 1000=0.20% lat (msec) : 2=6.54%, 4=3.78%, 10=6.15%, 20=11.30%, 50=40.92% lat (msec) : 100=22.36%, 250=4.26%, 500=0.23%, 750=0.03% cpu : usr=0.10%, sys=5.41%, ctx=6388, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144807: Tue Sep 8 01:40:14 2026 read: IOPS=12, BW=51.3KiB/s (52.5kB/s)(6028KiB/117475msec) clat (usec): min=32, max=612798, avg=38127.23, stdev=30326.96 lat (usec): min=32, max=612799, avg=38131.43, stdev=30326.34 clat percentiles (usec): | 1.00th=[ 55], 5.00th=[ 68], 10.00th=[ 9634], 20.00th=[ 18744], | 30.00th=[ 23987], 40.00th=[ 28443], 50.00th=[ 33817], 60.00th=[ 38536], | 70.00th=[ 45876], 80.00th=[ 54789], 90.00th=[ 69731], 95.00th=[ 84411], | 99.00th=[120062], 99.50th=[152044], 99.90th=[312476], 99.95th=[616563], | 99.99th=[616563] bw ( KiB/s): min= 7, max= 118, per=25.13%, avg=51.01, stdev=20.49, samples=230 iops : min= 1, max= 29, avg=12.12, stdev= 5.13, samples=230 write: IOPS=13, BW=53.3KiB/s (54.6kB/s)(6260KiB/117475msec); 0 zone resets clat (usec): min=843, max=304618, avg=38005.03, stdev=37693.05 lat (usec): min=844, max=304620, avg=38009.92, stdev=37695.18 clat percentiles (usec): | 1.00th=[ 1106], 5.00th=[ 1303], 10.00th=[ 1713], 20.00th=[ 4686], | 30.00th=[ 9241], 40.00th=[ 18220], 50.00th=[ 29230], 60.00th=[ 38536], | 70.00th=[ 51119], 80.00th=[ 65799], 90.00th=[ 86508], 95.00th=[108528], | 99.00th=[162530], 99.50th=[179307], 99.90th=[270533], 99.95th=[304088], | 99.99th=[304088] bw ( KiB/s): min= 15, max= 126, per=24.90%, avg=52.79, stdev=21.62, samples=231 iops : min= 3, max= 31, avg=12.56, stdev= 5.44, samples=231 lat (usec) : 50=0.36%, 100=3.65%, 250=0.26%, 500=0.07%, 1000=0.20% lat (msec) : 2=5.86%, 4=3.42%, 10=6.87%, 20=11.33%, 50=40.10% lat (msec) : 100=23.18%, 250=4.59%, 500=0.10%, 750=0.03% cpu : usr=0.10%, sys=5.45%, ctx=6557, 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=144808: Tue Sep 8 01:40:14 2026 read: IOPS=12, BW=51.2KiB/s (52.4kB/s)(6052KiB/118212msec) clat (usec): min=25, max=495335, avg=38679.73, stdev=29857.92 lat (usec): min=25, max=495337, avg=38681.20, stdev=29857.86 clat percentiles (usec): | 1.00th=[ 49], 5.00th=[ 64], 10.00th=[ 6980], 20.00th=[ 18744], | 30.00th=[ 23725], 40.00th=[ 28443], 50.00th=[ 32900], 60.00th=[ 38536], | 70.00th=[ 46924], 80.00th=[ 57934], 90.00th=[ 73925], 95.00th=[ 89654], | 99.00th=[124257], 99.50th=[156238], 99.90th=[231736], 99.95th=[497026], | 99.99th=[497026] bw ( KiB/s): min= 7, max= 111, per=25.10%, avg=50.96, stdev=21.08, samples=229 iops : min= 1, max= 27, avg=12.11, stdev= 5.31, samples=229 write: IOPS=13, BW=52.8KiB/s (54.0kB/s)(6236KiB/118212msec); 0 zone resets clat (usec): min=815, max=823390, avg=37928.44, stdev=43188.73 lat (usec): min=817, max=823391, avg=37953.58, stdev=43183.17 clat percentiles (usec): | 1.00th=[ 1139], 5.00th=[ 1303], 10.00th=[ 1827], 20.00th=[ 4178], | 30.00th=[ 8455], 40.00th=[ 18744], 50.00th=[ 27657], 60.00th=[ 36439], | 70.00th=[ 49546], 80.00th=[ 65799], 90.00th=[ 86508], 95.00th=[108528], | 99.00th=[162530], 99.50th=[187696], 99.90th=[354419], 99.95th=[826278], | 99.99th=[826278] bw ( KiB/s): min= 7, max= 149, per=24.62%, avg=52.19, stdev=22.66, samples=231 iops : min= 1, max= 37, avg=12.43, stdev= 5.72, samples=231 lat (usec) : 50=0.55%, 100=3.61%, 250=0.26%, 500=0.13%, 750=0.07% lat (usec) : 1000=0.16% lat (msec) : 2=5.83%, 4=4.13%, 10=6.80%, 20=10.32%, 50=40.36% lat (msec) : 100=23.05%, 250=4.52%, 500=0.16%, 1000=0.03% cpu : usr=0.09%, sys=5.53%, ctx=6437, 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=203KiB/s (208kB/s), 50.8KiB/s-51.3KiB/s (52.1kB/s-52.5kB/s), io=23.4MiB (24.6MB), run=116839-118212msec WRITE: bw=213KiB/s (218kB/s), 52.8KiB/s-54.3KiB/s (54.0kB/s-55.6kB/s), io=24.6MiB (25.7MB), run=116839-118212msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144809: Tue Sep 8 01:42:22 2026 read: IOPS=6, BW=24.4KiB/s (25.0kB/s)(5992KiB/245185msec) clat (msec): min=5, max=489, avg=31.96, stdev=32.33 lat (msec): min=5, max=489, avg=31.97, stdev=32.33 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 18], 50.00th=[ 22], 60.00th=[ 26], | 70.00th=[ 32], 80.00th=[ 45], 90.00th=[ 69], 95.00th=[ 93], | 99.00th=[ 161], 99.50th=[ 192], 99.90th=[ 268], 99.95th=[ 489], | 99.99th=[ 489] bw ( KiB/s): min= 7, max= 88, per=27.21%, avg=26.39, stdev=17.36, samples=439 iops : min= 1, max= 22, avg= 5.95, stdev= 4.40, samples=439 write: IOPS=6, BW=25.7KiB/s (26.3kB/s)(6296KiB/245185msec); 0 zone resets clat (msec): min=28, max=485, avg=125.02, stdev=56.64 lat (msec): min=28, max=485, avg=125.02, stdev=56.64 clat percentiles (msec): | 1.00th=[ 46], 5.00th=[ 59], 10.00th=[ 67], 20.00th=[ 81], | 30.00th=[ 91], 40.00th=[ 102], 50.00th=[ 114], 60.00th=[ 127], | 70.00th=[ 140], 80.00th=[ 163], 90.00th=[ 199], 95.00th=[ 232], | 99.00th=[ 317], 99.50th=[ 359], 99.90th=[ 451], 99.95th=[ 485], | 99.99th=[ 485] bw ( KiB/s): min= 7, max= 55, per=24.79%, avg=25.29, stdev=10.86, samples=480 iops : min= 1, max= 13, avg= 5.67, stdev= 2.78, samples=480 lat (msec) : 10=4.13%, 20=18.88%, 50=18.39%, 100=25.52%, 250=31.32% lat (msec) : 500=1.76% cpu : usr=0.04%, sys=1.22%, ctx=5083, 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=144810: Tue Sep 8 01:42:22 2026 read: IOPS=6, BW=24.2KiB/s (24.8kB/s)(5940KiB/245733msec) clat (msec): min=5, max=605, avg=31.41, stdev=35.28 lat (msec): min=5, max=605, avg=31.42, stdev=35.28 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=[ 26], | 70.00th=[ 30], 80.00th=[ 41], 90.00th=[ 66], 95.00th=[ 90], | 99.00th=[ 144], 99.50th=[ 209], 99.90th=[ 456], 99.95th=[ 609], | 99.99th=[ 609] bw ( KiB/s): min= 7, max= 95, per=27.69%, avg=26.86, stdev=17.34, samples=427 iops : min= 1, max= 23, avg= 6.07, stdev= 4.37, samples=427 write: IOPS=6, BW=25.8KiB/s (26.5kB/s)(6348KiB/245733msec); 0 zone resets clat (msec): min=31, max=564, avg=125.16, stdev=59.63 lat (msec): min=31, max=564, avg=125.16, stdev=59.63 clat percentiles (msec): | 1.00th=[ 43], 5.00th=[ 57], 10.00th=[ 65], 20.00th=[ 80], | 30.00th=[ 89], 40.00th=[ 101], 50.00th=[ 112], 60.00th=[ 126], | 70.00th=[ 142], 80.00th=[ 163], 90.00th=[ 203], 95.00th=[ 241], | 99.00th=[ 330], 99.50th=[ 397], 99.90th=[ 514], 99.95th=[ 567], | 99.99th=[ 567] bw ( KiB/s): min= 7, max= 63, per=24.87%, avg=25.37, stdev=11.23, samples=482 iops : min= 1, max= 15, avg= 5.68, stdev= 2.86, samples=482 lat (msec) : 10=3.94%, 20=18.46%, 50=19.92%, 100=24.80%, 250=30.70% lat (msec) : 500=2.08%, 750=0.10% cpu : usr=0.05%, sys=1.25%, ctx=5137, 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=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=144811: Tue Sep 8 01:42:22 2026 read: IOPS=6, BW=24.6KiB/s (25.2kB/s)(6028KiB/245274msec) clat (msec): min=5, max=272, avg=32.32, stdev=30.50 lat (msec): min=5, max=272, avg=32.32, stdev=30.50 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 19], 50.00th=[ 22], 60.00th=[ 27], | 70.00th=[ 33], 80.00th=[ 46], 90.00th=[ 68], 95.00th=[ 93], | 99.00th=[ 161], 99.50th=[ 190], 99.90th=[ 245], 99.95th=[ 275], | 99.99th=[ 275] bw ( KiB/s): min= 7, max= 95, per=27.03%, avg=26.22, stdev=17.41, samples=444 iops : min= 1, max= 23, avg= 5.90, stdev= 4.40, samples=444 write: IOPS=6, BW=25.5KiB/s (26.1kB/s)(6260KiB/245274msec); 0 zone resets clat (msec): min=32, max=669, avg=125.27, stdev=58.95 lat (msec): min=32, max=669, avg=125.27, stdev=58.95 clat percentiles (msec): | 1.00th=[ 44], 5.00th=[ 58], 10.00th=[ 66], 20.00th=[ 79], | 30.00th=[ 91], 40.00th=[ 103], 50.00th=[ 114], 60.00th=[ 127], | 70.00th=[ 142], 80.00th=[ 163], 90.00th=[ 201], 95.00th=[ 236], | 99.00th=[ 326], 99.50th=[ 359], 99.90th=[ 531], 99.95th=[ 667], | 99.99th=[ 667] bw ( KiB/s): min= 7, max= 56, per=24.56%, avg=25.06, stdev=11.09, samples=481 iops : min= 1, max= 14, avg= 5.61, stdev= 2.82, samples=481 lat (msec) : 10=4.75%, 20=17.38%, 50=19.66%, 100=25.07%, 250=31.02% lat (msec) : 500=2.05%, 750=0.07% cpu : usr=0.05%, sys=1.23%, ctx=4954, 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=144812: Tue Sep 8 01:42:22 2026 read: IOPS=6, BW=24.8KiB/s (25.3kB/s)(6052KiB/244524msec) clat (msec): min=5, max=457, avg=31.62, stdev=34.94 lat (msec): min=5, max=457, avg=31.62, stdev=34.94 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 15], 40.00th=[ 18], 50.00th=[ 22], 60.00th=[ 25], | 70.00th=[ 31], 80.00th=[ 43], 90.00th=[ 66], 95.00th=[ 93], | 99.00th=[ 153], 99.50th=[ 224], 99.90th=[ 435], 99.95th=[ 460], | 99.99th=[ 460] bw ( KiB/s): min= 7, max= 118, per=28.31%, avg=27.46, stdev=18.36, samples=427 iops : min= 1, max= 29, avg= 6.22, stdev= 4.62, samples=427 write: IOPS=6, BW=25.5KiB/s (26.1kB/s)(6236KiB/244524msec); 0 zone resets clat (msec): min=28, max=782, avg=125.88, stdev=59.88 lat (msec): min=28, max=782, avg=125.88, stdev=59.88 clat percentiles (msec): | 1.00th=[ 45], 5.00th=[ 59], 10.00th=[ 68], 20.00th=[ 80], | 30.00th=[ 91], 40.00th=[ 101], 50.00th=[ 112], 60.00th=[ 127], | 70.00th=[ 144], 80.00th=[ 167], 90.00th=[ 201], 95.00th=[ 232], | 99.00th=[ 313], 99.50th=[ 355], 99.90th=[ 567], 99.95th=[ 785], | 99.99th=[ 785] bw ( KiB/s): min= 7, max= 56, per=24.53%, avg=25.02, stdev=11.02, samples=481 iops : min= 1, max= 14, avg= 5.60, stdev= 2.81, samples=481 lat (msec) : 10=4.59%, 20=18.72%, 50=19.43%, 100=24.64%, 250=30.83% lat (msec) : 500=1.69%, 750=0.07%, 1000=0.03% cpu : usr=0.04%, sys=1.26%, ctx=5136, 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=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=97.7KiB/s (100kB/s), 24.2KiB/s-24.8KiB/s (24.8kB/s-25.3kB/s), io=23.4MiB (24.6MB), run=244524-245733msec WRITE: bw=102KiB/s (105kB/s), 25.5KiB/s-25.8KiB/s (26.1kB/s-26.5kB/s), io=24.6MiB (25.7MB), run=244524-245733msec 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=144864: Tue Sep 8 01:42:56 2026 read: IOPS=17, BW=281KiB/s (288kB/s)(5920KiB/21051msec) clat (usec): min=37, max=181330, avg=29095.54, stdev=26484.15 lat (usec): min=37, max=181331, avg=29096.75, stdev=26484.22 clat percentiles (usec): | 1.00th=[ 41], 5.00th=[ 55], 10.00th=[ 65], 20.00th=[ 85], | 30.00th=[ 14091], 40.00th=[ 21103], 50.00th=[ 26084], 60.00th=[ 32113], | 70.00th=[ 39060], 80.00th=[ 49021], 90.00th=[ 60556], 95.00th=[ 73925], | 99.00th=[116917], 99.50th=[132645], 99.90th=[181404], 99.95th=[181404], | 99.99th=[181404] bw ( KiB/s): min= 63, max= 480, per=26.89%, avg=278.56, stdev=101.21, samples=41 iops : min= 3, max= 30, avg=16.76, stdev= 6.37, samples=41 write: IOPS=18, BW=303KiB/s (310kB/s)(6368KiB/21051msec); 0 zone resets clat (usec): min=1271, max=326904, avg=25184.45, stdev=33251.69 lat (usec): min=1273, max=326906, avg=25186.60, stdev=33251.72 clat percentiles (usec): | 1.00th=[ 1483], 5.00th=[ 1713], 10.00th=[ 1893], 20.00th=[ 3064], | 30.00th=[ 5342], 40.00th=[ 8029], 50.00th=[ 12780], 60.00th=[ 21103], | 70.00th=[ 29230], 80.00th=[ 42730], 90.00th=[ 65274], 95.00th=[ 79168], | 99.00th=[130548], 99.50th=[308282], 99.90th=[325059], 99.95th=[325059], | 99.99th=[325059] bw ( KiB/s): min= 61, max= 598, per=27.66%, avg=301.49, stdev=117.56, samples=41 iops : min= 3, max= 37, avg=18.22, stdev= 7.45, samples=41 lat (usec) : 50=1.69%, 100=8.98%, 250=1.69%, 500=0.26%, 750=0.13% lat (msec) : 2=6.51%, 4=6.38%, 10=11.59%, 20=11.20%, 50=33.72% lat (msec) : 100=16.02%, 250=1.56%, 500=0.26% cpu : usr=0.08%, sys=7.35%, ctx=1315, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144865: Tue Sep 8 01:42:56 2026 read: IOPS=15, BW=249KiB/s (255kB/s)(5744KiB/23111msec) clat (usec): min=38, max=150226, avg=31288.44, stdev=25908.40 lat (usec): min=39, max=150227, avg=31293.87, stdev=25908.38 clat percentiles (usec): | 1.00th=[ 42], 5.00th=[ 55], 10.00th=[ 67], 20.00th=[ 83], | 30.00th=[ 17171], 40.00th=[ 24773], 50.00th=[ 30016], 60.00th=[ 36439], | 70.00th=[ 42206], 80.00th=[ 52167], 90.00th=[ 66323], 95.00th=[ 78119], | 99.00th=[ 96994], 99.50th=[111674], 99.90th=[149947], 99.95th=[149947], | 99.99th=[149947] bw ( KiB/s): min= 30, max= 512, per=23.90%, avg=247.58, stdev=108.15, samples=45 iops : min= 1, max= 32, avg=14.78, stdev= 6.89, samples=45 write: IOPS=17, BW=283KiB/s (290kB/s)(6544KiB/23111msec); 0 zone resets clat (usec): min=1336, max=233584, avg=28491.36, stdev=31088.12 lat (usec): min=1339, max=233586, avg=28494.21, stdev=31088.20 clat percentiles (usec): | 1.00th=[ 1483], 5.00th=[ 1827], 10.00th=[ 2409], 20.00th=[ 4015], | 30.00th=[ 6325], 40.00th=[ 8979], 50.00th=[ 16909], 60.00th=[ 27919], | 70.00th=[ 38536], 80.00th=[ 49021], 90.00th=[ 70779], 95.00th=[ 88605], | 99.00th=[114820], 99.50th=[139461], 99.90th=[233833], 99.95th=[233833], | 99.99th=[233833] bw ( KiB/s): min= 63, max= 503, per=25.72%, avg=280.31, stdev=93.67, samples=45 iops : min= 3, max= 31, avg=16.87, stdev= 5.94, samples=45 lat (usec) : 50=1.95%, 100=8.85%, 250=1.04%, 500=0.26%, 750=0.13% lat (msec) : 2=3.65%, 4=7.03%, 10=12.11%, 20=8.72%, 50=35.68% lat (msec) : 100=18.62%, 250=1.95% cpu : usr=0.10%, sys=6.62%, ctx=1350, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144866: Tue Sep 8 01:42:56 2026 read: IOPS=17, BW=275KiB/s (281kB/s)(6256KiB/22788msec) clat (usec): min=38, max=232130, avg=29995.71, stdev=25746.00 lat (usec): min=38, max=232131, avg=29997.20, stdev=25746.24 clat percentiles (usec): | 1.00th=[ 43], 5.00th=[ 61], 10.00th=[ 69], 20.00th=[ 94], | 30.00th=[ 16319], 40.00th=[ 24511], 50.00th=[ 28967], 60.00th=[ 32900], | 70.00th=[ 39584], 80.00th=[ 46400], 90.00th=[ 57934], 95.00th=[ 73925], | 99.00th=[101188], 99.50th=[113771], 99.90th=[231736], 99.95th=[231736], | 99.99th=[231736] bw ( KiB/s): min= 62, max= 573, per=26.53%, avg=274.89, stdev=114.38, samples=45 iops : min= 3, max= 35, avg=16.51, stdev= 7.16, samples=45 write: IOPS=16, BW=265KiB/s (271kB/s)(6032KiB/22788msec); 0 zone resets clat (usec): min=1413, max=460743, avg=28529.55, stdev=35836.24 lat (usec): min=1415, max=460746, avg=28531.91, stdev=35836.20 clat percentiles (usec): | 1.00th=[ 1532], 5.00th=[ 1729], 10.00th=[ 2147], 20.00th=[ 4621], | 30.00th=[ 7046], 40.00th=[ 10421], 50.00th=[ 17433], 60.00th=[ 26346], | 70.00th=[ 38011], 80.00th=[ 48497], 90.00th=[ 64226], 95.00th=[ 73925], | 99.00th=[156238], 99.50th=[160433], 99.90th=[459277], 99.95th=[459277], | 99.99th=[459277] bw ( KiB/s): min= 63, max= 448, per=24.19%, avg=263.64, stdev=91.22, samples=45 iops : min= 3, max= 28, avg=15.78, stdev= 5.74, samples=45 lat (usec) : 50=1.30%, 100=9.51%, 250=0.78%, 500=0.13%, 750=0.13% lat (msec) : 2=4.69%, 4=4.30%, 10=10.94%, 20=11.33%, 50=38.93% lat (msec) : 100=15.89%, 250=1.95%, 500=0.13% cpu : usr=0.06%, sys=6.75%, ctx=1408, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144867: Tue Sep 8 01:42:56 2026 read: IOPS=16, BW=267KiB/s (273kB/s)(6032KiB/22617msec) clat (usec): min=34, max=202930, avg=30951.18, stdev=29219.01 lat (usec): min=34, max=202932, avg=30952.41, stdev=29219.05 clat percentiles (usec): | 1.00th=[ 43], 5.00th=[ 60], 10.00th=[ 67], 20.00th=[ 78], | 30.00th=[ 15139], 40.00th=[ 22152], 50.00th=[ 27657], 60.00th=[ 33162], | 70.00th=[ 41681], 80.00th=[ 50594], 90.00th=[ 65799], 95.00th=[ 81265], | 99.00th=[139461], 99.50th=[179307], 99.90th=[202376], 99.95th=[202376], | 99.99th=[202376] bw ( KiB/s): min= 93, max= 542, per=25.38%, avg=262.95, stdev=99.42, samples=44 iops : min= 5, max= 33, avg=15.75, stdev= 6.25, samples=44 write: IOPS=17, BW=277KiB/s (283kB/s)(6256KiB/22617msec); 0 zone resets clat (usec): min=1561, max=272877, avg=27811.58, stdev=32103.22 lat (usec): min=1563, max=272878, avg=27848.24, stdev=32187.35 clat percentiles (usec): | 1.00th=[ 1631], 5.00th=[ 1795], 10.00th=[ 2089], 20.00th=[ 4228], | 30.00th=[ 6259], 40.00th=[ 9634], 50.00th=[ 15139], 60.00th=[ 25035], | 70.00th=[ 35914], 80.00th=[ 46924], 90.00th=[ 72877], 95.00th=[ 89654], | 99.00th=[124257], 99.50th=[204473], 99.90th=[274727], 99.95th=[274727], | 99.99th=[274727] bw ( KiB/s): min= 31, max= 507, per=25.20%, avg=274.66, stdev=99.01, samples=44 iops : min= 1, max= 31, avg=16.48, stdev= 6.30, samples=44 lat (usec) : 50=1.04%, 100=11.20%, 250=0.91%, 500=0.26%, 750=0.13% lat (msec) : 2=4.43%, 4=5.86%, 10=11.20%, 20=11.20%, 50=34.24% lat (msec) : 100=16.80%, 250=2.60%, 500=0.13% cpu : usr=0.11%, sys=6.93%, ctx=1330, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=1036KiB/s (1061kB/s), 249KiB/s-281KiB/s (255kB/s-288kB/s), io=23.4MiB (24.5MB), run=21051-23111msec WRITE: bw=1090KiB/s (1117kB/s), 265KiB/s-303KiB/s (271kB/s-310kB/s), io=24.6MiB (25.8MB), run=21051-23111msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144868: Tue Sep 8 01:43:34 2026 read: IOPS=6, BW=98.1KiB/s (100kB/s)(5920KiB/60338msec) clat (msec): min=6, max=217, avg=32.32, stdev=27.00 lat (msec): min=6, max=217, avg=32.32, stdev=27.00 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 18], 40.00th=[ 22], 50.00th=[ 24], 60.00th=[ 28], | 70.00th=[ 33], 80.00th=[ 41], 90.00th=[ 60], 95.00th=[ 88], | 99.00th=[ 163], 99.50th=[ 169], 99.90th=[ 218], 99.95th=[ 218], | 99.99th=[ 218] bw ( KiB/s): min= 29, max= 368, per=27.15%, avg=106.44, stdev=65.48, samples=109 iops : min= 1, max= 23, avg= 5.85, stdev= 4.19, samples=109 write: IOPS=6, BW=106KiB/s (108kB/s)(6368KiB/60338msec); 0 zone resets clat (msec): min=38, max=385, avg=121.25, stdev=46.96 lat (msec): min=38, max=385, avg=121.25, stdev=46.96 clat percentiles (msec): | 1.00th=[ 53], 5.00th=[ 65], 10.00th=[ 74], 20.00th=[ 84], | 30.00th=[ 94], 40.00th=[ 102], 50.00th=[ 113], 60.00th=[ 127], | 70.00th=[ 136], 80.00th=[ 150], 90.00th=[ 180], 95.00th=[ 213], | 99.00th=[ 288], 99.50th=[ 305], 99.90th=[ 388], 99.95th=[ 388], | 99.99th=[ 388] bw ( KiB/s): min= 27, max= 192, per=25.67%, avg=105.75, stdev=39.47, samples=118 iops : min= 1, max= 12, avg= 5.81, stdev= 2.54, samples=118 lat (msec) : 10=1.56%, 20=16.54%, 50=23.70%, 100=25.00%, 250=32.03% lat (msec) : 500=1.17% cpu : usr=0.06%, sys=1.47%, ctx=1372, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144869: Tue Sep 8 01:43:34 2026 read: IOPS=5, BW=94.1KiB/s (96.4kB/s)(5744KiB/61025msec) clat (msec): min=6, max=178, avg=31.59, stdev=25.40 lat (msec): min=6, max=178, avg=31.59, stdev=25.40 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 25], 60.00th=[ 29], | 70.00th=[ 33], 80.00th=[ 41], 90.00th=[ 64], 95.00th=[ 90], | 99.00th=[ 130], 99.50th=[ 169], 99.90th=[ 180], 99.95th=[ 180], | 99.99th=[ 180] bw ( KiB/s): min= 29, max= 299, per=27.15%, avg=106.41, stdev=65.68, samples=105 iops : min= 1, max= 18, avg= 5.86, stdev= 4.17, samples=105 write: IOPS=6, BW=107KiB/s (110kB/s)(6544KiB/61025msec); 0 zone resets clat (msec): min=40, max=393, avg=120.76, stdev=50.84 lat (msec): min=40, max=393, avg=120.77, stdev=50.84 clat percentiles (msec): | 1.00th=[ 51], 5.00th=[ 61], 10.00th=[ 70], 20.00th=[ 82], | 30.00th=[ 92], 40.00th=[ 99], 50.00th=[ 109], 60.00th=[ 120], | 70.00th=[ 133], 80.00th=[ 153], 90.00th=[ 194], 95.00th=[ 218], | 99.00th=[ 305], 99.50th=[ 363], 99.90th=[ 393], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 29, max= 191, per=25.77%, avg=106.17, stdev=39.54, samples=120 iops : min= 1, max= 11, avg= 5.83, stdev= 2.55, samples=120 lat (msec) : 10=2.34%, 20=15.10%, 50=22.66%, 100=26.82%, 250=32.16% lat (msec) : 500=0.91% cpu : usr=0.04%, sys=1.40%, ctx=1289, 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=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=144870: Tue Sep 8 01:43:34 2026 read: IOPS=6, BW=106KiB/s (108kB/s)(6256KiB/59174msec) clat (msec): min=6, max=243, avg=30.67, stdev=27.73 lat (msec): min=6, max=243, avg=30.67, stdev=27.73 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 17], 40.00th=[ 19], 50.00th=[ 22], 60.00th=[ 26], | 70.00th=[ 31], 80.00th=[ 40], 90.00th=[ 59], 95.00th=[ 82], | 99.00th=[ 144], 99.50th=[ 178], 99.90th=[ 245], 99.95th=[ 245], | 99.99th=[ 245] bw ( KiB/s): min= 30, max= 320, per=29.73%, avg=116.55, stdev=75.70, samples=106 iops : min= 1, max= 20, avg= 6.50, stdev= 4.83, samples=106 write: IOPS=6, BW=102KiB/s (104kB/s)(6032KiB/59174msec); 0 zone resets clat (msec): min=42, max=451, avg=124.49, stdev=54.69 lat (msec): min=42, max=451, avg=124.50, stdev=54.69 clat percentiles (msec): | 1.00th=[ 51], 5.00th=[ 63], 10.00th=[ 73], 20.00th=[ 86], | 30.00th=[ 93], 40.00th=[ 103], 50.00th=[ 113], 60.00th=[ 126], | 70.00th=[ 138], 80.00th=[ 157], 90.00th=[ 186], 95.00th=[ 228], | 99.00th=[ 351], 99.50th=[ 397], 99.90th=[ 451], 99.95th=[ 451], | 99.99th=[ 451] bw ( KiB/s): min= 28, max= 192, per=24.64%, avg=101.50, stdev=38.69, samples=117 iops : min= 1, max= 12, avg= 5.54, stdev= 2.48, samples=117 lat (msec) : 10=2.86%, 20=19.53%, 50=22.14%, 100=23.44%, 250=30.34% lat (msec) : 500=1.69% cpu : usr=0.06%, sys=1.40%, ctx=1325, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144871: Tue Sep 8 01:43:34 2026 read: IOPS=6, BW=99.7KiB/s (102kB/s)(6032KiB/60525msec) clat (msec): min=7, max=178, avg=30.43, stdev=25.71 lat (msec): min=7, max=178, avg=30.44, stdev=25.71 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 20], 50.00th=[ 23], 60.00th=[ 26], | 70.00th=[ 31], 80.00th=[ 40], 90.00th=[ 62], 95.00th=[ 82], | 99.00th=[ 146], 99.50th=[ 176], 99.90th=[ 178], 99.95th=[ 178], | 99.99th=[ 178] bw ( KiB/s): min= 31, max= 288, per=28.53%, avg=111.85, stdev=63.23, samples=105 iops : min= 1, max= 18, avg= 6.19, stdev= 4.06, samples=105 write: IOPS=6, BW=103KiB/s (106kB/s)(6256KiB/60525msec); 0 zone resets clat (msec): min=48, max=451, avg=124.52, stdev=49.76 lat (msec): min=48, max=451, avg=124.52, stdev=49.76 clat percentiles (msec): | 1.00th=[ 56], 5.00th=[ 65], 10.00th=[ 72], 20.00th=[ 84], | 30.00th=[ 93], 40.00th=[ 105], 50.00th=[ 114], 60.00th=[ 125], | 70.00th=[ 142], 80.00th=[ 163], 90.00th=[ 192], 95.00th=[ 213], | 99.00th=[ 275], 99.50th=[ 334], 99.90th=[ 451], 99.95th=[ 451], | 99.99th=[ 451] bw ( KiB/s): min= 29, max= 192, per=24.93%, avg=102.72, stdev=37.97, samples=119 iops : min= 1, max= 12, avg= 5.61, stdev= 2.46, samples=119 lat (msec) : 10=2.60%, 20=19.01%, 50=21.09%, 100=22.53%, 250=33.85% lat (msec) : 500=0.91% cpu : usr=0.03%, sys=1.40%, ctx=1309, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=392KiB/s (402kB/s), 94.1KiB/s-106KiB/s (96.4kB/s-108kB/s), io=23.4MiB (24.5MB), run=59174-61025msec WRITE: bw=413KiB/s (423kB/s), 102KiB/s-107KiB/s (104kB/s-110kB/s), io=24.6MiB (25.8MB), run=59174-61025msec 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=144896: Tue Sep 8 01:43:49 2026 read: IOPS=1, BW=1645KiB/s (1684kB/s)(7168KiB/4358msec) clat (msec): min=80, max=793, avg=300.97, stdev=310.42 lat (msec): min=80, max=793, avg=300.98, stdev=310.42 clat percentiles (msec): | 1.00th=[ 81], 5.00th=[ 81], 10.00th=[ 81], 20.00th=[ 118], | 30.00th=[ 124], 40.00th=[ 124], 50.00th=[ 140], 60.00th=[ 140], | 70.00th=[ 140], 80.00th=[ 709], 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= 1892, max= 4484, per=75.29%, avg=3490.67, stdev=1398.01, samples=3 iops : min= 1, max= 4, avg= 3.00, stdev= 1.73, samples=3 write: IOPS=1, BW=1175KiB/s (1203kB/s)(5120KiB/4358msec); 0 zone resets clat (msec): min=148, max=747, avg=410.75, stdev=233.31 lat (msec): min=148, max=747, avg=410.92, stdev=233.25 clat percentiles (msec): | 1.00th=[ 148], 5.00th=[ 148], 10.00th=[ 148], 20.00th=[ 148], | 30.00th=[ 257], 40.00th=[ 257], 50.00th=[ 388], 60.00th=[ 388], | 70.00th=[ 514], 80.00th=[ 514], 90.00th=[ 751], 95.00th=[ 751], | 99.00th=[ 751], 99.50th=[ 751], 99.90th=[ 751], 99.95th=[ 751], | 99.99th=[ 751] bw ( KiB/s): min= 1988, max= 2048, per=31.08%, avg=2017.20, stdev=23.93, samples=5 iops : min= 1, max= 2, avg= 1.20, stdev= 0.45, samples=5 lat (msec) : 100=8.33%, 250=41.67%, 500=16.67%, 750=25.00%, 1000=8.33% cpu : usr=0.05%, sys=4.71%, ctx=134, 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=144897: Tue Sep 8 01:43:49 2026 read: IOPS=0, BW=466KiB/s (477kB/s)(2048KiB/4393msec) clat (msec): min=175, max=365, avg=270.41, stdev=133.87 lat (msec): min=175, max=365, avg=270.41, stdev=133.87 clat percentiles (msec): | 1.00th=[ 176], 5.00th=[ 176], 10.00th=[ 176], 20.00th=[ 176], | 30.00th=[ 176], 40.00th=[ 176], 50.00th=[ 176], 60.00th=[ 368], | 70.00th=[ 368], 80.00th=[ 368], 90.00th=[ 368], 95.00th=[ 368], | 99.00th=[ 368], 99.50th=[ 368], 99.90th=[ 368], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 1488, max= 1988, per=37.49%, avg=1738.00, stdev=353.55, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2331KiB/s (2387kB/s)(10.0MiB/4393msec); 0 zone resets clat (msec): min=161, max=919, avg=370.94, stdev=231.53 lat (msec): min=161, max=919, avg=371.09, stdev=231.49 clat percentiles (msec): | 1.00th=[ 163], 5.00th=[ 163], 10.00th=[ 163], 20.00th=[ 207], | 30.00th=[ 209], 40.00th=[ 249], 50.00th=[ 255], 60.00th=[ 355], | 70.00th=[ 376], 80.00th=[ 376], 90.00th=[ 609], 95.00th=[ 919], | 99.00th=[ 919], 99.50th=[ 919], 99.90th=[ 919], 99.95th=[ 919], | 99.99th=[ 919] bw ( KiB/s): min= 1892, max= 4063, per=37.34%, avg=2423.86, stdev=813.04, samples=7 iops : min= 1, max= 3, avg= 1.57, stdev= 0.79, samples=7 lat (msec) : 250=41.67%, 500=41.67%, 750=8.33%, 1000=8.33% cpu : usr=0.00%, sys=3.69%, ctx=58, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=144898: Tue Sep 8 01:43:49 2026 read: IOPS=1, BW=1391KiB/s (1424kB/s)(6144KiB/4417msec) clat (msec): min=115, max=675, avg=260.68, stdev=216.82 lat (msec): min=115, max=675, avg=260.68, stdev=216.82 clat percentiles (msec): | 1.00th=[ 116], 5.00th=[ 116], 10.00th=[ 116], 20.00th=[ 127], | 30.00th=[ 127], 40.00th=[ 150], 50.00th=[ 150], 60.00th=[ 174], | 70.00th=[ 326], 80.00th=[ 326], 90.00th=[ 676], 95.00th=[ 676], | 99.00th=[ 676], 99.50th=[ 676], 99.90th=[ 676], 99.95th=[ 676], | 99.99th=[ 676] bw ( KiB/s): min= 1892, max= 3976, per=53.64%, avg=2486.75, stdev=995.29, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 write: IOPS=1, BW=1391KiB/s (1424kB/s)(6144KiB/4417msec); 0 zone resets clat (msec): min=216, max=1041, avg=464.60, stdev=300.60 lat (msec): min=216, max=1041, avg=464.89, stdev=300.49 clat percentiles (msec): | 1.00th=[ 218], 5.00th=[ 218], 10.00th=[ 218], 20.00th=[ 326], | 30.00th=[ 326], 40.00th=[ 338], 50.00th=[ 338], 60.00th=[ 338], | 70.00th=[ 531], 80.00th=[ 531], 90.00th=[ 1045], 95.00th=[ 1045], | 99.00th=[ 1045], 99.50th=[ 1045], 99.90th=[ 1045], 99.95th=[ 1045], | 99.99th=[ 1045] bw ( KiB/s): min= 1969, max= 2929, per=33.75%, avg=2190.60, stdev=413.87, samples=5 iops : min= 1, max= 2, avg= 1.40, stdev= 0.55, samples=5 lat (msec) : 250=41.67%, 500=33.33%, 750=16.67%, 2000=8.33% cpu : usr=0.00%, sys=2.88%, ctx=53, 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=144899: Tue Sep 8 01:43:49 2026 read: IOPS=1, BW=1206KiB/s (1234kB/s)(5120KiB/4247msec) clat (msec): min=154, max=825, avg=378.23, stdev=262.38 lat (msec): min=154, max=825, avg=378.23, stdev=262.38 clat percentiles (msec): | 1.00th=[ 155], 5.00th=[ 155], 10.00th=[ 155], 20.00th=[ 155], | 30.00th=[ 241], 40.00th=[ 241], 50.00th=[ 300], 60.00th=[ 300], | 70.00th=[ 372], 80.00th=[ 372], 90.00th=[ 827], 95.00th=[ 827], | 99.00th=[ 827], 99.50th=[ 827], 99.90th=[ 827], 99.95th=[ 827], | 99.99th=[ 827] bw ( KiB/s): min= 3785, max= 3976, per=83.70%, avg=3880.50, stdev=135.06, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1688KiB/s (1728kB/s)(7168KiB/4247msec); 0 zone resets clat (msec): min=236, max=570, avg=317.34, stdev=114.91 lat (msec): min=236, max=570, avg=317.98, stdev=114.90 clat percentiles (msec): | 1.00th=[ 236], 5.00th=[ 236], 10.00th=[ 236], 20.00th=[ 255], | 30.00th=[ 266], 40.00th=[ 266], 50.00th=[ 271], 60.00th=[ 305], | 70.00th=[ 305], 80.00th=[ 317], 90.00th=[ 567], 95.00th=[ 567], | 99.00th=[ 567], 99.50th=[ 567], 99.90th=[ 567], 99.95th=[ 567], | 99.99th=[ 567] bw ( KiB/s): min= 1592, max= 4096, per=42.18%, avg=2737.60, stdev=1208.44, samples=5 iops : min= 1, max= 4, avg= 2.00, stdev= 1.41, samples=5 lat (msec) : 250=25.00%, 500=58.33%, 750=8.33%, 1000=8.33% cpu : usr=0.00%, sys=3.72%, ctx=76, 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=4637KiB/s (4748kB/s), 466KiB/s-1645KiB/s (477kB/s-1684kB/s), io=20.0MiB (20.0MB), run=4247-4417msec WRITE: bw=6491KiB/s (6647kB/s), 1175KiB/s-2331KiB/s (1203kB/s-2387kB/s), io=28.0MiB (29.4MB), run=4247-4417msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144901: Tue Sep 8 01:43:50 2026 read: IOPS=1, BW=1893KiB/s (1938kB/s)(7168KiB/3787msec) clat (msec): min=2, max=597, avg=266.41, stdev=187.53 lat (msec): min=2, max=597, avg=266.41, stdev=187.53 clat percentiles (msec): | 1.00th=[ 3], 5.00th=[ 3], 10.00th=[ 3], 20.00th=[ 107], | 30.00th=[ 249], 40.00th=[ 249], 50.00th=[ 275], 60.00th=[ 296], | 70.00th=[ 296], 80.00th=[ 342], 90.00th=[ 600], 95.00th=[ 600], | 99.00th=[ 600], 99.50th=[ 600], 99.90th=[ 600], 99.95th=[ 600], | 99.99th=[ 600] bw ( KiB/s): min= 1709, max= 3992, per=58.75%, avg=2894.50, stdev=1231.84, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 write: IOPS=1, BW=1352KiB/s (1384kB/s)(5120KiB/3787msec); 0 zone resets clat (msec): min=97, max=807, avg=383.41, stdev=260.37 lat (msec): min=97, max=807, avg=383.49, stdev=260.36 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 97], 10.00th=[ 97], 20.00th=[ 97], | 30.00th=[ 300], 40.00th=[ 300], 50.00th=[ 334], 60.00th=[ 334], | 70.00th=[ 380], 80.00th=[ 380], 90.00th=[ 810], 95.00th=[ 810], | 99.00th=[ 810], 99.50th=[ 810], 99.90th=[ 810], 99.95th=[ 810], | 99.99th=[ 810] bw ( KiB/s): min= 1954, max= 4000, per=36.08%, avg=2488.50, stdev=1008.22, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (msec) : 4=8.33%, 100=8.33%, 250=16.67%, 500=50.00%, 750=8.33% lat (msec) : 1000=8.33% cpu : usr=0.00%, sys=13.50%, ctx=146, 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=144902: Tue Sep 8 01:43:50 2026 read: IOPS=0, BW=493KiB/s (505kB/s)(2048KiB/4156msec) clat (msec): min=272, max=421, avg=346.97, stdev=105.83 lat (msec): min=272, max=421, avg=346.98, stdev=105.83 clat percentiles (msec): | 1.00th=[ 271], 5.00th=[ 271], 10.00th=[ 271], 20.00th=[ 271], | 30.00th=[ 271], 40.00th=[ 271], 50.00th=[ 271], 60.00th=[ 422], | 70.00th=[ 422], 80.00th=[ 422], 90.00th=[ 422], 95.00th=[ 422], | 99.00th=[ 422], 99.50th=[ 422], 99.90th=[ 422], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 1627, max= 1961, per=36.41%, avg=1794.00, stdev=236.17, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2464KiB/s (2523kB/s)(10.0MiB/4156msec); 0 zone resets clat (msec): min=132, max=622, avg=345.75, stdev=147.65 lat (msec): min=132, max=623, avg=346.04, stdev=147.61 clat percentiles (msec): | 1.00th=[ 133], 5.00th=[ 133], 10.00th=[ 133], 20.00th=[ 226], | 30.00th=[ 226], 40.00th=[ 253], 50.00th=[ 334], 60.00th=[ 347], | 70.00th=[ 359], 80.00th=[ 460], 90.00th=[ 498], 95.00th=[ 625], | 99.00th=[ 625], 99.50th=[ 625], 99.90th=[ 625], 99.95th=[ 625], | 99.99th=[ 625] bw ( KiB/s): min= 1954, max= 4063, per=38.43%, avg=2650.83, stdev=1040.72, samples=6 iops : min= 1, max= 3, avg= 1.67, stdev= 1.03, samples=6 lat (msec) : 250=25.00%, 500=66.67%, 750=8.33% cpu : usr=0.02%, sys=14.39%, ctx=200, 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=144903: Tue Sep 8 01:43:50 2026 read: IOPS=1, BW=1570KiB/s (1608kB/s)(6144KiB/3913msec) clat (usec): min=753, max=465081, avg=194186.84, stdev=213180.77 lat (usec): min=755, max=465083, avg=194188.65, stdev=213181.06 clat percentiles (usec): | 1.00th=[ 750], 5.00th=[ 750], 10.00th=[ 750], 20.00th=[ 996], | 30.00th=[ 996], 40.00th=[ 11600], 50.00th=[ 11600], 60.00th=[316670], | 70.00th=[367002], 80.00th=[367002], 90.00th=[463471], 95.00th=[463471], | 99.00th=[463471], 99.50th=[463471], 99.90th=[463471], 99.95th=[463471], | 99.99th=[463471] bw ( KiB/s): min= 1954, max= 4000, per=66.82%, avg=3292.33, stdev=1159.67, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=1, BW=1570KiB/s (1608kB/s)(6144KiB/3913msec); 0 zone resets clat (msec): min=224, max=755, avg=457.34, stdev=216.90 lat (msec): min=224, max=755, avg=457.43, stdev=216.91 clat percentiles (msec): | 1.00th=[ 226], 5.00th=[ 226], 10.00th=[ 226], 20.00th=[ 245], | 30.00th=[ 245], 40.00th=[ 393], 50.00th=[ 393], 60.00th=[ 468], | 70.00th=[ 667], 80.00th=[ 667], 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= 1656, max= 3908, per=33.61%, avg=2318.20, stdev=901.88, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (usec) : 1000=16.67% lat (msec) : 20=8.33%, 250=16.67%, 500=41.67%, 750=8.33%, 1000=8.33% cpu : usr=0.00%, sys=11.04%, ctx=169, 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=144904: Tue Sep 8 01:43:50 2026 read: IOPS=1, BW=1472KiB/s (1507kB/s)(5120KiB/3479msec) clat (usec): min=397, max=263654, avg=53469.88, stdev=117498.78 lat (usec): min=398, max=263655, avg=53471.00, stdev=117498.45 clat percentiles (usec): | 1.00th=[ 400], 5.00th=[ 400], 10.00th=[ 400], 20.00th=[ 400], | 30.00th=[ 619], 40.00th=[ 619], 50.00th=[ 635], 60.00th=[ 635], | 70.00th=[ 2040], 80.00th=[ 2040], 90.00th=[263193], 95.00th=[263193], | 99.00th=[263193], 99.50th=[263193], 99.90th=[263193], 99.95th=[263193], | 99.99th=[263193] bw ( KiB/s): min= 8000, max= 8000, per=100.00%, avg=8000.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=2, BW=2060KiB/s (2110kB/s)(7168KiB/3479msec); 0 zone resets clat (msec): min=186, max=891, avg=458.41, stdev=276.75 lat (msec): min=186, max=892, avg=458.50, stdev=276.75 clat percentiles (msec): | 1.00th=[ 186], 5.00th=[ 186], 10.00th=[ 186], 20.00th=[ 215], | 30.00th=[ 317], 40.00th=[ 317], 50.00th=[ 355], 60.00th=[ 456], | 70.00th=[ 456], 80.00th=[ 785], 90.00th=[ 894], 95.00th=[ 894], | 99.00th=[ 894], 99.50th=[ 894], 99.90th=[ 894], 99.95th=[ 894], | 99.99th=[ 894] bw ( KiB/s): min= 1765, max= 4063, per=35.51%, avg=2449.25, stdev=1080.87, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (usec) : 500=8.33%, 750=16.67% lat (msec) : 4=8.33%, 250=16.67%, 500=33.33%, 1000=16.67% cpu : usr=0.00%, sys=13.77%, ctx=97, 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=4928KiB/s (5046kB/s), 493KiB/s-1893KiB/s (505kB/s-1938kB/s), io=20.0MiB (20.0MB), run=3479-4156msec WRITE: bw=6899KiB/s (7065kB/s), 1352KiB/s-2464KiB/s (1384kB/s-2523kB/s), io=28.0MiB (29.4MB), run=3479-4156msec 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=144910: Tue Sep 8 01:44:07 2026 read: IOPS=1, BW=4316KiB/s (4420kB/s)(12.0MiB/2847msec) clat (msec): min=754, max=1074, avg=862.68, stdev=183.70 lat (msec): min=754, max=1074, avg=862.68, stdev=183.70 clat percentiles (msec): | 1.00th=[ 751], 5.00th=[ 751], 10.00th=[ 751], 20.00th=[ 751], | 30.00th=[ 751], 40.00th=[ 760], 50.00th=[ 760], 60.00th=[ 760], | 70.00th=[ 1083], 80.00th=[ 1083], 90.00th=[ 1083], 95.00th=[ 1083], | 99.00th=[ 1083], 99.50th=[ 1083], 99.90th=[ 1083], 99.95th=[ 1083], | 99.99th=[ 1083] bw ( KiB/s): min= 8143, max= 8159, per=100.00%, avg=8151.00, stdev=11.31, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=66.67%, 2000=33.33% cpu : usr=0.00%, sys=3.48%, ctx=46, 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=144911: Tue Sep 8 01:44:07 2026 read: IOPS=0, BW=998KiB/s (1022kB/s)(4096KiB/4106msec) clat (nsec): min=301114k, max=301114k, avg=301114475.00, stdev= 0.00 lat (nsec): min=301117k, max=301117k, avg=301117138.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 300], 5.00th=[ 300], 10.00th=[ 300], 20.00th=[ 300], | 30.00th=[ 300], 40.00th=[ 300], 50.00th=[ 300], 60.00th=[ 300], | 70.00th=[ 300], 80.00th=[ 300], 90.00th=[ 300], 95.00th=[ 300], | 99.00th=[ 300], 99.50th=[ 300], 99.90th=[ 300], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 8192, max= 8192, per=100.00%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 write: IOPS=0, BW=1995KiB/s (2043kB/s)(8192KiB/4106msec); 0 zone resets clat (msec): min=814, max=2735, avg=1774.92, stdev=1358.08 lat (msec): min=814, max=2738, avg=1776.50, stdev=1359.88 clat percentiles (msec): | 1.00th=[ 818], 5.00th=[ 818], 10.00th=[ 818], 20.00th=[ 818], | 30.00th=[ 818], 40.00th=[ 818], 50.00th=[ 818], 60.00th=[ 2735], | 70.00th=[ 2735], 80.00th=[ 2735], 90.00th=[ 2735], 95.00th=[ 2735], | 99.00th=[ 2735], 99.50th=[ 2735], 99.90th=[ 2735], 99.95th=[ 2735], | 99.99th=[ 2735] bw ( KiB/s): min= 8159, max= 8159, per=100.00%, avg=8159.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 1000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=3.31%, ctx=79, 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=144912: Tue Sep 8 01:44:07 2026 write: IOPS=0, BW=3114KiB/s (3189kB/s)(12.0MiB/3946msec); 0 zone resets clat (msec): min=319, max=1791, avg=1216.25, stdev=786.88 lat (msec): min=320, max=1791, avg=1220.56, stdev=789.14 clat percentiles (msec): | 1.00th=[ 321], 5.00th=[ 321], 10.00th=[ 321], 20.00th=[ 321], | 30.00th=[ 321], 40.00th=[ 1536], 50.00th=[ 1536], 60.00th=[ 1536], | 70.00th=[ 1787], 80.00th=[ 1787], 90.00th=[ 1787], 95.00th=[ 1787], | 99.00th=[ 1787], 99.50th=[ 1787], 99.90th=[ 1787], 99.95th=[ 1787], | 99.99th=[ 1787] bw ( KiB/s): min= 8110, max= 8110, per=100.00%, avg=8110.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.00%, sys=4.92%, ctx=75, 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=144913: Tue Sep 8 01:44:07 2026 write: IOPS=1, BW=4971KiB/s (5090kB/s)(12.0MiB/2472msec); 0 zone resets clat (msec): min=399, max=1432, avg=750.20, stdev=591.24 lat (msec): min=401, max=1433, avg=751.15, stdev=590.63 clat percentiles (msec): | 1.00th=[ 401], 5.00th=[ 401], 10.00th=[ 401], 20.00th=[ 401], | 30.00th=[ 401], 40.00th=[ 418], 50.00th=[ 418], 60.00th=[ 418], | 70.00th=[ 1435], 80.00th=[ 1435], 90.00th=[ 1435], 95.00th=[ 1435], | 99.00th=[ 1435], 99.50th=[ 1435], 99.90th=[ 1435], 99.95th=[ 1435], | 99.99th=[ 1435] bw ( KiB/s): min= 8159, max= 8192, per=100.00%, avg=8175.50, stdev=23.33, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 500=66.67%, 2000=33.33% cpu : usr=0.00%, sys=4.57%, ctx=56, 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=3990KiB/s (4086kB/s), 998KiB/s-4316KiB/s (1022kB/s-4420kB/s), io=16.0MiB (16.8MB), run=2847-4106msec WRITE: bw=7981KiB/s (8172kB/s), 1995KiB/s-4971KiB/s (2043kB/s-5090kB/s), io=32.0MiB (33.6MB), run=2472-4106msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144915: Tue Sep 8 01:44:07 2026 read: IOPS=1, BW=5331KiB/s (5459kB/s)(12.0MiB/2305msec) clat (msec): min=674, max=780, avg=733.65, stdev=54.52 lat (msec): min=674, max=780, avg=733.65, stdev=54.52 clat percentiles (msec): | 1.00th=[ 676], 5.00th=[ 676], 10.00th=[ 676], 20.00th=[ 676], | 30.00th=[ 676], 40.00th=[ 743], 50.00th=[ 743], 60.00th=[ 743], | 70.00th=[ 785], 80.00th=[ 785], 90.00th=[ 785], 95.00th=[ 785], | 99.00th=[ 785], 99.50th=[ 785], 99.90th=[ 785], 99.95th=[ 785], | 99.99th=[ 785] bw ( KiB/s): min= 8143, max= 8192, per=100.00%, avg=8167.50, stdev=34.65, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 750=66.67%, 1000=33.33% cpu : usr=0.00%, sys=12.37%, ctx=211, 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=144916: Tue Sep 8 01:44:07 2026 read: IOPS=0, BW=1488KiB/s (1524kB/s)(4096KiB/2752msec) clat (nsec): min=710762k, max=710762k, avg=710762263.00, stdev= 0.00 lat (nsec): min=710765k, max=710765k, avg=710764578.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 709], 5.00th=[ 709], 10.00th=[ 709], 20.00th=[ 709], | 30.00th=[ 709], 40.00th=[ 709], 50.00th=[ 709], 60.00th=[ 709], | 70.00th=[ 709], 80.00th=[ 709], 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= 8192, max= 8192, per=100.00%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2977KiB/s (3048kB/s)(8192KiB/2752msec); 0 zone resets clat (msec): min=522, max=1426, avg=974.40, stdev=638.90 lat (msec): min=523, max=1430, avg=976.58, stdev=641.39 clat percentiles (msec): | 1.00th=[ 523], 5.00th=[ 523], 10.00th=[ 523], 20.00th=[ 523], | 30.00th=[ 523], 40.00th=[ 523], 50.00th=[ 523], 60.00th=[ 1435], | 70.00th=[ 1435], 80.00th=[ 1435], 90.00th=[ 1435], 95.00th=[ 1435], | 99.00th=[ 1435], 99.50th=[ 1435], 99.90th=[ 1435], 99.95th=[ 1435], | 99.99th=[ 1435] bw ( KiB/s): min= 8143, max= 8143, per=100.00%, avg=8143.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=66.67%, 2000=33.33% cpu : usr=0.00%, sys=6.00%, ctx=114, 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=144917: Tue Sep 8 01:44:07 2026 write: IOPS=0, BW=2996KiB/s (3068kB/s)(12.0MiB/4102msec); 0 zone resets clat (msec): min=461, max=1886, avg=1339.08, stdev=767.37 lat (msec): min=462, max=1886, avg=1339.54, stdev=767.34 clat percentiles (msec): | 1.00th=[ 464], 5.00th=[ 464], 10.00th=[ 464], 20.00th=[ 464], | 30.00th=[ 464], 40.00th=[ 1670], 50.00th=[ 1670], 60.00th=[ 1670], | 70.00th=[ 1888], 80.00th=[ 1888], 90.00th=[ 1888], 95.00th=[ 1888], | 99.00th=[ 1888], 99.50th=[ 1888], 99.90th=[ 1888], 99.95th=[ 1888], | 99.99th=[ 1888] bw ( KiB/s): min= 7772, max= 8143, per=99.62%, avg=7957.50, stdev=262.34, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.00%, sys=2.22%, ctx=39, 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=144918: Tue Sep 8 01:44:07 2026 write: IOPS=1, BW=4430KiB/s (4536kB/s)(12.0MiB/2774msec); 0 zone resets clat (msec): min=324, max=1797, avg=900.73, stdev=787.30 lat (msec): min=324, max=1799, avg=901.62, stdev=788.00 clat percentiles (msec): | 1.00th=[ 326], 5.00th=[ 326], 10.00th=[ 326], 20.00th=[ 326], | 30.00th=[ 326], 40.00th=[ 584], 50.00th=[ 584], 60.00th=[ 584], | 70.00th=[ 1804], 80.00th=[ 1804], 90.00th=[ 1804], 95.00th=[ 1804], | 99.00th=[ 1804], 99.50th=[ 1804], 99.90th=[ 1804], 99.95th=[ 1804], | 99.99th=[ 1804] bw ( KiB/s): min=16351, max=16351, per=100.00%, avg=16351.00, stdev= 0.00, samples=1 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.04%, sys=4.69%, ctx=48, 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=5953KiB/s (6096kB/s), 1488KiB/s-5331KiB/s (1524kB/s-5459kB/s), io=16.0MiB (16.8MB), run=2305-2752msec WRITE: bw=7988KiB/s (8180kB/s), 2977KiB/s-4430KiB/s (3048kB/s-4536kB/s), io=32.0MiB (33.6MB), run=2752-4102msec