== sanity test 398b: DIO and buffer IO race ============== 00:40:28 (1788842428) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 5.8391 s, 8.6 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=145601: Tue Sep 8 00:42:48 2026 read: IOPS=12, BW=49.7KiB/s (50.9kB/s)(5992KiB/120480msec) clat (usec): min=29, max=894092, avg=37733.91, stdev=37553.53 lat (usec): min=30, max=894093, avg=37738.13, stdev=37553.88 clat percentiles (usec): | 1.00th=[ 41], 5.00th=[ 57], 10.00th=[ 69], 20.00th=[ 15008], | 30.00th=[ 20317], 40.00th=[ 26084], 50.00th=[ 31327], 60.00th=[ 37487], | 70.00th=[ 45351], 80.00th=[ 57410], 90.00th=[ 77071], 95.00th=[ 95945], | 99.00th=[141558], 99.50th=[160433], 99.90th=[231736], 99.95th=[893387], | 99.99th=[893387] bw ( KiB/s): min= 7, max= 134, per=25.32%, avg=49.88, stdev=23.39, samples=235 iops : min= 1, max= 33, avg=11.85, stdev= 5.89, samples=235 write: IOPS=13, BW=52.3KiB/s (53.5kB/s)(6296KiB/120480msec); 0 zone resets clat (usec): min=986, max=323495, avg=40319.74, stdev=41425.13 lat (usec): min=987, max=323497, avg=40325.49, stdev=41423.69 clat percentiles (usec): | 1.00th=[ 1074], 5.00th=[ 1287], 10.00th=[ 1811], 20.00th=[ 3916], | 30.00th=[ 8160], 40.00th=[ 18220], 50.00th=[ 28705], 60.00th=[ 41157], | 70.00th=[ 53216], 80.00th=[ 69731], 90.00th=[ 96994], 95.00th=[120062], | 99.00th=[175113], 99.50th=[202376], 99.90th=[274727], 99.95th=[325059], | 99.99th=[325059] bw ( KiB/s): min= 7, max= 150, per=25.21%, avg=51.94, stdev=24.64, samples=237 iops : min= 1, max= 37, avg=12.36, stdev= 6.17, samples=237 lat (usec) : 50=1.17%, 100=4.88%, 250=0.62%, 500=0.16%, 750=0.03% lat (usec) : 1000=0.07% lat (msec) : 2=6.22%, 4=4.46%, 10=6.71%, 20=11.69%, 50=35.32% lat (msec) : 100=22.07%, 250=6.48%, 500=0.10%, 1000=0.03% cpu : usr=0.05%, sys=5.97%, ctx=6584, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145603: Tue Sep 8 00:42:48 2026 read: IOPS=12, BW=49.0KiB/s (51.2kB/s)(5940KiB/118882msec) clat (usec): min=32, max=253179, avg=37971.78, stdev=31708.24 lat (usec): min=33, max=253181, avg=37974.07, stdev=31706.91 clat percentiles (usec): | 1.00th=[ 47], 5.00th=[ 58], 10.00th=[ 78], 20.00th=[ 14484], | 30.00th=[ 20579], 40.00th=[ 25560], 50.00th=[ 31065], 60.00th=[ 36439], | 70.00th=[ 47973], 80.00th=[ 57934], 90.00th=[ 79168], 95.00th=[ 98042], | 99.00th=[145753], 99.50th=[164627], 99.90th=[204473], 99.95th=[252707], | 99.99th=[252707] bw ( KiB/s): min= 7, max= 119, per=25.24%, avg=49.71, stdev=22.40, samples=234 iops : min= 1, max= 29, avg=11.81, stdev= 5.64, samples=234 write: IOPS=13, BW=53.4KiB/s (54.7kB/s)(6348KiB/118882msec); 0 zone resets clat (usec): min=902, max=839904, avg=39094.88, stdev=45426.74 lat (usec): min=902, max=839905, avg=39098.15, stdev=45426.39 clat percentiles (usec): | 1.00th=[ 1074], 5.00th=[ 1221], 10.00th=[ 1860], 20.00th=[ 3851], | 30.00th=[ 7570], 40.00th=[ 15926], 50.00th=[ 26608], 60.00th=[ 36963], | 70.00th=[ 50070], 80.00th=[ 68682], 90.00th=[ 93848], 95.00th=[122160], | 99.00th=[175113], 99.50th=[193987], 99.90th=[316670], 99.95th=[843056], | 99.99th=[843056] bw ( KiB/s): min= 7, max= 119, per=25.94%, avg=53.45, stdev=24.01, samples=233 iops : min= 1, max= 29, avg=12.74, stdev= 6.02, samples=233 lat (usec) : 50=0.65%, 100=5.11%, 250=0.65%, 500=0.23%, 750=0.03% lat (usec) : 1000=0.16% lat (msec) : 2=5.57%, 4=4.98%, 10=7.10%, 20=12.30%, 50=34.57% lat (msec) : 100=21.84%, 250=6.71%, 500=0.07%, 1000=0.03% cpu : usr=0.08%, sys=5.88%, ctx=6602, 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=145605: Tue Sep 8 00:42:48 2026 read: IOPS=12, BW=49.5KiB/s (50.7kB/s)(6028KiB/121725msec) clat (usec): min=31, max=377258, avg=36137.90, stdev=31298.84 lat (usec): min=31, max=377259, avg=36139.72, stdev=31299.26 clat percentiles (usec): | 1.00th=[ 42], 5.00th=[ 53], 10.00th=[ 64], 20.00th=[ 12911], | 30.00th=[ 19268], 40.00th=[ 23987], 50.00th=[ 29230], 60.00th=[ 35914], | 70.00th=[ 44827], 80.00th=[ 57410], 90.00th=[ 77071], 95.00th=[ 94897], | 99.00th=[132645], 99.50th=[156238], 99.90th=[196084], 99.95th=[375391], | 99.99th=[375391] bw ( KiB/s): min= 7, max= 119, per=24.96%, avg=49.18, stdev=24.44, samples=239 iops : min= 1, max= 29, avg=11.67, stdev= 6.15, samples=239 write: IOPS=12, BW=51.4KiB/s (52.7kB/s)(6260KiB/121725msec); 0 zone resets clat (usec): min=877, max=856399, avg=42695.74, stdev=48808.84 lat (usec): min=878, max=856400, avg=42697.40, stdev=48809.06 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1221], 10.00th=[ 1680], 20.00th=[ 3851], | 30.00th=[ 7767], 40.00th=[ 18220], 50.00th=[ 30016], 60.00th=[ 41157], | 70.00th=[ 54789], 80.00th=[ 72877], 90.00th=[104334], 95.00th=[129500], | 99.00th=[198181], 99.50th=[223347], 99.90th=[270533], 99.95th=[859833], | 99.99th=[859833] bw ( KiB/s): min= 7, max= 120, per=24.78%, avg=51.05, stdev=22.53, samples=239 iops : min= 1, max= 30, avg=12.14, stdev= 5.65, samples=239 lat (usec) : 50=1.46%, 100=4.92%, 250=1.11%, 500=0.13%, 750=0.07% lat (usec) : 1000=0.16% lat (msec) : 2=6.05%, 4=4.52%, 10=6.80%, 20=11.59%, 50=33.50% lat (msec) : 100=21.97%, 250=7.58%, 500=0.10%, 1000=0.03% cpu : usr=0.07%, sys=5.82%, ctx=6524, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145607: Tue Sep 8 00:42:48 2026 read: IOPS=12, BW=51.2KiB/s (52.5kB/s)(6052KiB/118144msec) clat (usec): min=29, max=936490, avg=36305.62, stdev=39446.40 lat (usec): min=30, max=936491, avg=36316.64, stdev=39454.56 clat percentiles (usec): | 1.00th=[ 47], 5.00th=[ 56], 10.00th=[ 64], 20.00th=[ 13566], | 30.00th=[ 18744], 40.00th=[ 23725], 50.00th=[ 28967], 60.00th=[ 35390], | 70.00th=[ 43779], 80.00th=[ 54264], 90.00th=[ 74974], 95.00th=[ 94897], | 99.00th=[145753], 99.50th=[170918], 99.90th=[350225], 99.95th=[935330], | 99.99th=[935330] bw ( KiB/s): min= 7, max= 118, per=26.16%, avg=51.53, stdev=23.60, samples=230 iops : min= 1, max= 29, avg=12.26, stdev= 5.94, samples=230 write: IOPS=13, BW=52.8KiB/s (54.0kB/s)(6236KiB/118144msec); 0 zone resets clat (usec): min=985, max=256716, avg=40234.21, stdev=41522.63 lat (usec): min=986, max=256718, avg=40236.76, stdev=41524.00 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1221], 10.00th=[ 1844], 20.00th=[ 3818], | 30.00th=[ 7177], 40.00th=[ 17171], 50.00th=[ 27919], 60.00th=[ 40109], | 70.00th=[ 52691], 80.00th=[ 70779], 90.00th=[100140], 95.00th=[125305], | 99.00th=[177210], 99.50th=[191890], 99.90th=[217056], 99.95th=[256902], | 99.99th=[256902] bw ( KiB/s): min= 15, max= 127, per=25.54%, avg=52.60, stdev=22.60, samples=232 iops : min= 3, max= 31, avg=12.53, stdev= 5.67, samples=232 lat (usec) : 50=0.75%, 100=6.02%, 250=0.59%, 500=0.13%, 750=0.07% lat (usec) : 1000=0.10% lat (msec) : 2=5.53%, 4=5.11%, 10=7.29%, 20=12.30%, 50=34.67% lat (msec) : 100=20.31%, 250=7.03%, 500=0.07%, 1000=0.03% cpu : usr=0.08%, sys=6.04%, ctx=6494, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=197KiB/s (202kB/s), 49.5KiB/s-51.2KiB/s (50.7kB/s-52.5kB/s), io=23.4MiB (24.6MB), run=118144-121725msec WRITE: bw=207KiB/s (211kB/s), 51.4KiB/s-53.4KiB/s (52.7kB/s-54.7kB/s), io=24.6MiB (25.7MB), run=118144-121725msec fio: pid=145608, err=5/file:backend.c:481, func=full resid, error=Input/output error rand-rw: (groupid=0, jobs=1): err= 0: pid=145602: Tue Sep 8 00:44:53 2026 read: IOPS=6, BW=24.5KiB/s (25.1kB/s)(5992KiB/244812msec) clat (msec): min=5, max=890, avg=32.71, stdev=38.99 lat (msec): min=5, max=890, avg=32.71, stdev=38.99 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 13], | 30.00th=[ 15], 40.00th=[ 18], 50.00th=[ 22], 60.00th=[ 26], | 70.00th=[ 33], 80.00th=[ 45], 90.00th=[ 71], 95.00th=[ 95], | 99.00th=[ 159], 99.50th=[ 222], 99.90th=[ 334], 99.95th=[ 894], | 99.99th=[ 894] bw ( KiB/s): min= 7, max= 104, per=32.17%, avg=27.67, stdev=18.68, samples=421 iops : min= 1, max= 26, avg= 6.33, stdev= 4.74, samples=421 write: IOPS=6, BW=25.7KiB/s (26.3kB/s)(6296KiB/244812msec); 0 zone resets clat (msec): min=28, max=625, avg=124.15, stdev=68.68 lat (msec): min=28, max=625, avg=124.15, stdev=68.68 clat percentiles (msec): | 1.00th=[ 41], 5.00th=[ 53], 10.00th=[ 59], 20.00th=[ 72], | 30.00th=[ 82], 40.00th=[ 91], 50.00th=[ 104], 60.00th=[ 117], | 70.00th=[ 138], 80.00th=[ 174], 90.00th=[ 226], 95.00th=[ 264], | 99.00th=[ 342], 99.50th=[ 388], 99.90th=[ 472], 99.95th=[ 625], | 99.99th=[ 625] bw ( KiB/s): min= 7, max= 64, per=28.09%, avg=25.56, stdev=12.79, samples=477 iops : min= 1, max= 16, avg= 5.80, stdev= 3.29, samples=477 lat (msec) : 10=5.31%, 20=17.58%, 50=19.60%, 100=28.45%, 250=25.78% lat (msec) : 500=3.22%, 750=0.03%, 1000=0.03% cpu : usr=0.04%, sys=1.19%, ctx=5506, 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=145604: Tue Sep 8 00:44:53 2026 read: IOPS=6, BW=24.1KiB/s (24.6kB/s)(5940KiB/246758msec) clat (msec): min=5, max=973, avg=33.40, stdev=42.35 lat (msec): min=5, max=973, avg=33.40, stdev=42.35 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 13], | 30.00th=[ 15], 40.00th=[ 19], 50.00th=[ 22], 60.00th=[ 26], | 70.00th=[ 32], 80.00th=[ 44], 90.00th=[ 73], 95.00th=[ 102], | 99.00th=[ 159], 99.50th=[ 228], 99.90th=[ 456], 99.95th=[ 978], | 99.99th=[ 978] bw ( KiB/s): min= 7, max= 104, per=32.15%, avg=27.65, stdev=18.29, samples=417 iops : min= 1, max= 26, avg= 6.34, stdev= 4.65, samples=417 write: IOPS=6, BW=25.7KiB/s (26.3kB/s)(6348KiB/246758msec); 0 zone resets clat (msec): min=31, max=624, avg=123.97, stdev=68.46 lat (msec): min=31, max=624, avg=123.97, stdev=68.45 clat percentiles (msec): | 1.00th=[ 43], 5.00th=[ 52], 10.00th=[ 61], 20.00th=[ 72], | 30.00th=[ 83], 40.00th=[ 92], 50.00th=[ 104], 60.00th=[ 118], | 70.00th=[ 138], 80.00th=[ 171], 90.00th=[ 220], 95.00th=[ 262], | 99.00th=[ 342], 99.50th=[ 422], 99.90th=[ 514], 99.95th=[ 625], | 99.99th=[ 625] bw ( KiB/s): min= 7, max= 63, per=27.94%, avg=25.42, stdev=12.75, samples=483 iops : min= 1, max= 15, avg= 5.77, stdev= 3.26, samples=483 lat (msec) : 10=5.34%, 20=16.57%, 50=20.44%, 100=27.64%, 250=26.56% lat (msec) : 500=3.35%, 750=0.07%, 1000=0.03% cpu : usr=0.04%, sys=1.19%, ctx=5655, 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=145606: Tue Sep 8 00:44:53 2026 read: IOPS=6, BW=24.5KiB/s (25.1kB/s)(6028KiB/246304msec) clat (msec): min=5, max=460, avg=34.23, stdev=34.78 lat (msec): min=5, max=460, avg=34.23, stdev=34.79 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 19], 50.00th=[ 23], 60.00th=[ 28], | 70.00th=[ 35], 80.00th=[ 49], 90.00th=[ 74], 95.00th=[ 101], | 99.00th=[ 159], 99.50th=[ 226], 99.90th=[ 330], 99.95th=[ 460], | 99.99th=[ 460] bw ( KiB/s): min= 7, max= 120, per=30.74%, avg=26.44, stdev=18.64, samples=442 iops : min= 1, max= 30, avg= 6.02, stdev= 4.71, samples=442 write: IOPS=6, BW=25.4KiB/s (26.0kB/s)(6260KiB/246304msec); 0 zone resets clat (msec): min=34, max=1253, avg=124.16, stdev=72.10 lat (msec): min=34, max=1253, avg=124.16, stdev=72.09 clat percentiles (msec): | 1.00th=[ 42], 5.00th=[ 53], 10.00th=[ 61], 20.00th=[ 72], | 30.00th=[ 82], 40.00th=[ 92], 50.00th=[ 105], 60.00th=[ 120], | 70.00th=[ 138], 80.00th=[ 171], 90.00th=[ 215], 95.00th=[ 257], | 99.00th=[ 351], 99.50th=[ 363], 99.90th=[ 502], 99.95th=[ 1250], | 99.99th=[ 1250] bw ( KiB/s): min= 7, max= 64, per=27.72%, avg=25.22, stdev=12.84, samples=480 iops : min= 1, max= 16, avg= 5.72, stdev= 3.29, samples=480 lat (msec) : 10=5.50%, 20=15.69%, 50=20.38%, 100=28.65%, 250=26.60% lat (msec) : 500=3.16%, 2000=0.03% cpu : usr=0.04%, sys=1.21%, ctx=5394, 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= 5 (file:backend.c:481, func=full resid, error=Input/output error): pid=145608: Tue Sep 8 00:44:53 2026 read: IOPS=4, BW=19.7KiB/s (20.2kB/s)(3480KiB/176442msec) clat (msec): min=6, max=422, avg=45.80, stdev=45.79 lat (msec): min=6, max=422, avg=45.81, stdev=45.78 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 16], | 30.00th=[ 20], 40.00th=[ 24], 50.00th=[ 30], 60.00th=[ 39], | 70.00th=[ 51], 80.00th=[ 69], 90.00th=[ 100], 95.00th=[ 136], | 99.00th=[ 232], 99.50th=[ 266], 99.90th=[ 422], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 7, max= 95, per=25.92%, avg=22.29, stdev=15.06, samples=300 iops : min= 1, max= 23, avg= 4.96, stdev= 3.80, samples=300 write: IOPS=5, BW=20.2KiB/s (20.7kB/s)(3560KiB/176442msec); 0 zone resets clat (msec): min=33, max=1099, avg=153.03, stdev=74.52 lat (msec): min=33, max=1099, avg=153.03, stdev=74.52 clat percentiles (msec): | 1.00th=[ 52], 5.00th=[ 68], 10.00th=[ 79], 20.00th=[ 93], | 30.00th=[ 107], 40.00th=[ 123], 50.00th=[ 140], 60.00th=[ 157], | 70.00th=[ 178], 80.00th=[ 209], 90.00th=[ 251], 95.00th=[ 288], | 99.00th=[ 342], 99.50th=[ 376], 99.90th=[ 1099], 99.95th=[ 1099], | 99.99th=[ 1099] bw ( KiB/s): min= 7, max= 54, per=21.79%, avg=19.83, stdev= 9.73, samples=343 iops : min= 1, max= 13, avg= 4.34, stdev= 2.50, samples=343 lat (msec) : 10=2.27%, 20=13.74%, 50=18.68%, 100=22.66%, 250=37.08% lat (msec) : 500=5.45%, 2000=0.06% cpu : usr=0.03%, sys=1.03%, ctx=2768, majf=0, minf=20 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=871,890,0,0 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=86.9KiB/s (88.0kB/s), 19.7KiB/s-24.5KiB/s (20.2kB/s-25.1kB/s), io=20.9MiB (21.0MB), run=176442-246758msec WRITE: bw=91.0KiB/s (93.2kB/s), 20.2KiB/s-25.7KiB/s (20.7kB/s-26.3kB/s), io=21.9MiB (23.0MB), run=176442-246758msec 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=145670: Tue Sep 8 00:45:33 2026 read: IOPS=12, BW=202KiB/s (207kB/s)(5920KiB/29355msec) clat (usec): min=33, max=249275, avg=40803.02, stdev=35039.79 lat (usec): min=34, max=249276, avg=40805.23, stdev=35039.00 clat percentiles (usec): | 1.00th=[ 43], 5.00th=[ 57], 10.00th=[ 64], 20.00th=[ 113], | 30.00th=[ 20841], 40.00th=[ 31065], 50.00th=[ 38011], 60.00th=[ 43254], | 70.00th=[ 53740], 80.00th=[ 66847], 90.00th=[ 81265], 95.00th=[109577], | 99.00th=[162530], 99.50th=[166724], 99.90th=[248513], 99.95th=[248513], | 99.99th=[248513] bw ( KiB/s): min= 63, max= 364, per=24.75%, avg=195.98, stdev=71.83, samples=57 iops : min= 3, max= 22, avg=11.47, stdev= 4.54, samples=57 write: IOPS=13, BW=217KiB/s (222kB/s)(6368KiB/29355msec); 0 zone resets clat (usec): min=1342, max=206330, avg=35746.70, stdev=37488.78 lat (usec): min=1344, max=206332, avg=35753.78, stdev=37497.36 clat percentiles (usec): | 1.00th=[ 1434], 5.00th=[ 1827], 10.00th=[ 2769], 20.00th=[ 4686], | 30.00th=[ 7701], 40.00th=[ 12387], 50.00th=[ 20841], 60.00th=[ 33162], | 70.00th=[ 47449], 80.00th=[ 64226], 90.00th=[ 94897], 95.00th=[112722], | 99.00th=[152044], 99.50th=[170918], 99.90th=[206570], 99.95th=[206570], | 99.99th=[206570] bw ( KiB/s): min= 31, max= 414, per=25.69%, avg=214.00, stdev=90.75, samples=57 iops : min= 1, max= 25, avg=12.63, stdev= 5.69, samples=57 lat (usec) : 50=1.69%, 100=7.81%, 250=0.91%, 500=0.52%, 750=0.13% lat (msec) : 2=3.39%, 4=6.25%, 10=9.90%, 20=8.72%, 50=29.43% lat (msec) : 100=23.83%, 250=7.42% cpu : usr=0.07%, sys=5.75%, ctx=1457, 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=145671: Tue Sep 8 00:45:33 2026 read: IOPS=11, BW=191KiB/s (195kB/s)(5744KiB/30092msec) clat (usec): min=40, max=199257, avg=44853.87, stdev=34408.07 lat (usec): min=40, max=199257, avg=44855.42, stdev=34407.71 clat percentiles (usec): | 1.00th=[ 42], 5.00th=[ 58], 10.00th=[ 65], 20.00th=[ 18744], | 30.00th=[ 28443], 40.00th=[ 35914], 50.00th=[ 42730], 60.00th=[ 49021], | 70.00th=[ 55837], 80.00th=[ 66323], 90.00th=[ 82314], 95.00th=[113771], | 99.00th=[183501], 99.50th=[198181], 99.90th=[200279], 99.95th=[200279], | 99.99th=[200279] bw ( KiB/s): min= 25, max= 383, per=24.26%, avg=192.14, stdev=79.99, samples=59 iops : min= 1, max= 23, avg=11.24, stdev= 5.00, samples=59 write: IOPS=13, BW=217KiB/s (223kB/s)(6544KiB/30092msec); 0 zone resets clat (usec): min=1368, max=324357, avg=34101.81, stdev=40888.59 lat (usec): min=1371, max=324359, avg=34106.17, stdev=40887.93 clat percentiles (usec): | 1.00th=[ 1500], 5.00th=[ 1729], 10.00th=[ 2606], 20.00th=[ 5407], | 30.00th=[ 8356], 40.00th=[ 12256], 50.00th=[ 18482], 60.00th=[ 27657], | 70.00th=[ 41157], 80.00th=[ 55313], 90.00th=[ 85459], 95.00th=[115868], | 99.00th=[168821], 99.50th=[229639], 99.90th=[325059], 99.95th=[325059], | 99.99th=[325059] bw ( KiB/s): min= 31, max= 542, per=26.13%, avg=217.66, stdev=92.85, samples=59 iops : min= 1, max= 33, avg=12.85, stdev= 5.82, samples=59 lat (usec) : 50=0.78%, 100=6.51%, 250=0.78%, 500=0.26% lat (msec) : 2=3.78%, 4=4.04%, 10=11.85%, 20=9.24%, 50=32.81% lat (msec) : 100=22.79%, 250=7.03%, 500=0.13% cpu : usr=0.10%, sys=5.90%, ctx=1440, 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=145672: Tue Sep 8 00:45:33 2026 read: IOPS=12, BW=207KiB/s (212kB/s)(6256KiB/30229msec) clat (usec): min=35, max=178873, avg=39524.92, stdev=32298.22 lat (usec): min=35, max=178874, avg=39526.61, stdev=32298.42 clat percentiles (usec): | 1.00th=[ 42], 5.00th=[ 56], 10.00th=[ 64], 20.00th=[ 103], | 30.00th=[ 21627], 40.00th=[ 30016], 50.00th=[ 36963], 60.00th=[ 46400], | 70.00th=[ 53216], 80.00th=[ 63177], 90.00th=[ 82314], 95.00th=[ 93848], | 99.00th=[152044], 99.50th=[173016], 99.90th=[179307], 99.95th=[179307], | 99.99th=[179307] bw ( KiB/s): min= 31, max= 542, per=26.70%, avg=211.45, stdev=90.47, samples=58 iops : min= 1, max= 33, avg=12.47, stdev= 5.69, samples=58 write: IOPS=12, BW=200KiB/s (204kB/s)(6032KiB/30229msec); 0 zone resets clat (usec): min=1335, max=301453, avg=39051.42, stdev=42924.60 lat (usec): min=1338, max=301455, avg=39055.24, stdev=42926.36 clat percentiles (usec): | 1.00th=[ 1483], 5.00th=[ 2008], 10.00th=[ 4146], 20.00th=[ 6587], | 30.00th=[ 11076], 40.00th=[ 17957], 50.00th=[ 25822], 60.00th=[ 35914], | 70.00th=[ 46400], 80.00th=[ 64750], 90.00th=[ 86508], 95.00th=[112722], | 99.00th=[233833], 99.50th=[287310], 99.90th=[299893], 99.95th=[299893], | 99.99th=[299893] bw ( KiB/s): min= 31, max= 348, per=23.70%, avg=197.41, stdev=74.93, samples=59 iops : min= 1, max= 21, avg=11.58, stdev= 4.73, samples=59 lat (usec) : 50=1.43%, 100=8.46%, 250=1.43%, 500=0.26%, 750=0.13% lat (msec) : 2=2.73%, 4=2.47%, 10=9.51%, 20=9.24%, 50=32.94% lat (msec) : 100=25.65%, 250=5.34%, 500=0.39% cpu : usr=0.06%, sys=5.42%, ctx=1445, 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=145673: Tue Sep 8 00:45:33 2026 read: IOPS=13, BW=209KiB/s (214kB/s)(6032KiB/28922msec) clat (usec): min=36, max=311040, avg=41701.77, stdev=39740.18 lat (usec): min=37, max=311041, avg=41702.96, stdev=39740.18 clat percentiles (usec): | 1.00th=[ 46], 5.00th=[ 60], 10.00th=[ 64], 20.00th=[ 90], | 30.00th=[ 21890], 40.00th=[ 30802], 50.00th=[ 36963], 60.00th=[ 45876], | 70.00th=[ 53216], 80.00th=[ 64226], 90.00th=[ 84411], 95.00th=[106431], | 99.00th=[183501], 99.50th=[291505], 99.90th=[312476], 99.95th=[312476], | 99.99th=[312476] bw ( KiB/s): min= 31, max= 407, per=26.18%, avg=207.37, stdev=72.56, samples=56 iops : min= 1, max= 25, avg=12.21, stdev= 4.59, samples=56 write: IOPS=13, BW=216KiB/s (221kB/s)(6256KiB/28922msec); 0 zone resets clat (usec): min=1356, max=152220, avg=33646.04, stdev=34738.42 lat (usec): min=1357, max=152222, avg=33650.73, stdev=34736.59 clat percentiles (usec): | 1.00th=[ 1434], 5.00th=[ 1778], 10.00th=[ 2802], 20.00th=[ 5407], | 30.00th=[ 7963], 40.00th=[ 11863], 50.00th=[ 20055], 60.00th=[ 30540], | 70.00th=[ 43779], 80.00th=[ 60031], 90.00th=[ 84411], 95.00th=[110625], | 99.00th=[137364], 99.50th=[152044], 99.90th=[152044], 99.95th=[152044], | 99.99th=[152044] bw ( KiB/s): min= 63, max= 473, per=25.85%, avg=215.32, stdev=102.92, samples=56 iops : min= 3, max= 29, avg=12.71, stdev= 6.49, samples=56 lat (usec) : 50=0.65%, 100=9.24%, 250=1.69%, 500=0.26% lat (msec) : 2=3.91%, 4=4.56%, 10=9.24%, 20=9.77%, 50=31.64% lat (msec) : 100=22.53%, 250=6.25%, 500=0.26% cpu : usr=0.06%, sys=5.68%, ctx=1403, 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=792KiB/s (811kB/s), 191KiB/s-209KiB/s (195kB/s-214kB/s), io=23.4MiB (24.5MB), run=28922-30229msec WRITE: bw=834KiB/s (854kB/s), 200KiB/s-217KiB/s (204kB/s-223kB/s), io=24.6MiB (25.8MB), run=28922-30229msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145664: Tue Sep 8 00:46:11 2026 read: IOPS=5, BW=86.1KiB/s (88.1kB/s)(5920KiB/68792msec) clat (msec): min=6, max=309, avg=37.87, stdev=43.10 lat (msec): min=6, max=309, avg=37.87, stdev=43.10 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 19], 50.00th=[ 23], 60.00th=[ 26], | 70.00th=[ 34], 80.00th=[ 49], 90.00th=[ 87], 95.00th=[ 140], | 99.00th=[ 228], 99.50th=[ 271], 99.90th=[ 309], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 30, max= 320, per=27.51%, avg=94.92, stdev=60.96, samples=123 iops : min= 1, max= 20, avg= 5.19, stdev= 3.95, samples=123 write: IOPS=5, BW=92.6KiB/s (94.8kB/s)(6368KiB/68792msec); 0 zone resets clat (msec): min=36, max=471, avg=137.48, stdev=74.60 lat (msec): min=36, max=471, avg=137.49, stdev=74.60 clat percentiles (msec): | 1.00th=[ 45], 5.00th=[ 62], 10.00th=[ 70], 20.00th=[ 82], | 30.00th=[ 93], 40.00th=[ 104], 50.00th=[ 118], 60.00th=[ 130], | 70.00th=[ 148], 80.00th=[ 178], 90.00th=[ 247], 95.00th=[ 317], | 99.00th=[ 388], 99.50th=[ 388], 99.90th=[ 472], 99.95th=[ 472], | 99.99th=[ 472] bw ( KiB/s): min= 26, max= 192, per=25.78%, avg=93.60, stdev=45.67, samples=134 iops : min= 1, max= 12, avg= 5.09, stdev= 2.95, samples=134 lat (msec) : 10=2.73%, 20=18.10%, 50=19.01%, 100=24.22%, 250=30.60% lat (msec) : 500=5.34% cpu : usr=0.04%, sys=1.24%, ctx=1319, 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=145665: Tue Sep 8 00:46:11 2026 read: IOPS=5, BW=82.0KiB/s (84.0kB/s)(5744KiB/69238msec) clat (msec): min=6, max=334, avg=36.41, stdev=38.94 lat (msec): min=6, max=334, avg=36.41, stdev=38.94 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 23], 60.00th=[ 27], | 70.00th=[ 34], 80.00th=[ 50], 90.00th=[ 82], 95.00th=[ 114], | 99.00th=[ 188], 99.50th=[ 271], 99.90th=[ 334], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 27, max= 352, per=27.46%, avg=94.73, stdev=66.21, samples=118 iops : min= 1, max= 22, avg= 5.17, stdev= 4.24, samples=118 write: IOPS=5, BW=94.5KiB/s (96.8kB/s)(6544KiB/69238msec); 0 zone resets clat (msec): min=34, max=473, avg=137.03, stdev=72.03 lat (msec): min=34, max=473, avg=137.04, stdev=72.04 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 58], 10.00th=[ 66], 20.00th=[ 79], | 30.00th=[ 92], 40.00th=[ 104], 50.00th=[ 117], 60.00th=[ 136], | 70.00th=[ 159], 80.00th=[ 186], 90.00th=[ 241], 95.00th=[ 279], | 99.00th=[ 384], 99.50th=[ 393], 99.90th=[ 472], 99.95th=[ 472], | 99.99th=[ 472] bw ( KiB/s): min= 30, max= 223, per=25.96%, avg=94.24, stdev=47.98, samples=135 iops : min= 1, max= 13, avg= 5.13, stdev= 3.09, samples=135 lat (msec) : 10=2.47%, 20=17.19%, 50=18.88%, 100=24.48%, 250=32.29% lat (msec) : 500=4.69% cpu : usr=0.03%, sys=1.26%, ctx=1353, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145666: Tue Sep 8 00:46:11 2026 read: IOPS=5, BW=93.4KiB/s (95.6kB/s)(6256KiB/67012msec) clat (msec): min=6, max=348, avg=35.89, stdev=39.22 lat (msec): min=6, max=348, avg=35.90, stdev=39.24 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 20], 50.00th=[ 23], 60.00th=[ 26], | 70.00th=[ 32], 80.00th=[ 46], 90.00th=[ 82], 95.00th=[ 103], | 99.00th=[ 230], 99.50th=[ 317], 99.90th=[ 351], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 30, max= 349, per=30.12%, avg=103.91, stdev=77.29, samples=119 iops : min= 1, max= 21, avg= 5.75, stdev= 4.87, samples=119 write: IOPS=5, BW=90.0KiB/s (92.2kB/s)(6032KiB/67012msec); 0 zone resets clat (msec): min=36, max=495, avg=140.16, stdev=79.95 lat (msec): min=36, max=495, avg=140.18, stdev=79.98 clat percentiles (msec): | 1.00th=[ 45], 5.00th=[ 61], 10.00th=[ 68], 20.00th=[ 81], | 30.00th=[ 91], 40.00th=[ 102], 50.00th=[ 115], 60.00th=[ 133], | 70.00th=[ 157], 80.00th=[ 190], 90.00th=[ 253], 95.00th=[ 300], | 99.00th=[ 477], 99.50th=[ 493], 99.90th=[ 498], 99.95th=[ 498], | 99.99th=[ 498] bw ( KiB/s): min= 30, max= 192, per=25.35%, avg=92.02, stdev=43.52, samples=128 iops : min= 1, max= 12, avg= 4.99, stdev= 2.81, samples=128 lat (msec) : 10=1.82%, 20=19.53%, 50=20.70%, 100=25.39%, 250=27.34% lat (msec) : 500=5.21% cpu : usr=0.03%, sys=1.16%, ctx=1351, 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=145667: Tue Sep 8 00:46:11 2026 read: IOPS=5, BW=87.5KiB/s (89.6kB/s)(6032KiB/68950msec) clat (msec): min=6, max=339, avg=39.12, stdev=46.12 lat (msec): min=6, max=339, avg=39.12, stdev=46.12 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 24], 60.00th=[ 28], | 70.00th=[ 33], 80.00th=[ 48], 90.00th=[ 89], 95.00th=[ 133], | 99.00th=[ 255], 99.50th=[ 321], 99.90th=[ 338], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 30, max= 349, per=29.20%, avg=100.74, stdev=67.70, samples=117 iops : min= 1, max= 21, avg= 5.56, stdev= 4.30, samples=117 write: IOPS=5, BW=90.7KiB/s (92.9kB/s)(6256KiB/68950msec); 0 zone resets clat (msec): min=43, max=479, avg=138.28, stdev=71.33 lat (msec): min=43, max=479, avg=138.28, stdev=71.33 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 62], 10.00th=[ 71], 20.00th=[ 86], | 30.00th=[ 96], 40.00th=[ 108], 50.00th=[ 117], 60.00th=[ 131], | 70.00th=[ 150], 80.00th=[ 190], 90.00th=[ 236], 95.00th=[ 284], | 99.00th=[ 393], 99.50th=[ 447], 99.90th=[ 481], 99.95th=[ 481], | 99.99th=[ 481] bw ( KiB/s): min= 30, max= 192, per=25.63%, avg=93.05, stdev=44.52, samples=132 iops : min= 1, max= 12, avg= 5.05, stdev= 2.90, samples=132 lat (msec) : 10=2.08%, 20=17.06%, 50=21.09%, 100=22.66%, 250=32.03% lat (msec) : 500=5.08% cpu : usr=0.03%, sys=1.27%, ctx=1362, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=346KiB/s (354kB/s), 82.0KiB/s-93.4KiB/s (84.0kB/s-95.6kB/s), io=23.4MiB (24.5MB), run=67012-69238msec WRITE: bw=364KiB/s (373kB/s), 90.0KiB/s-94.5KiB/s (92.2kB/s-96.8kB/s), io=24.6MiB (25.8MB), run=67012-69238msec 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=145690: Tue Sep 8 00:46:25 2026 read: IOPS=2, BW=2539KiB/s (2600kB/s)(7168KiB/2823msec) clat (msec): min=52, max=543, avg=187.78, stdev=183.43 lat (msec): min=52, max=543, avg=187.79, stdev=183.43 clat percentiles (msec): | 1.00th=[ 53], 5.00th=[ 53], 10.00th=[ 53], 20.00th=[ 73], | 30.00th=[ 74], 40.00th=[ 74], 50.00th=[ 84], 60.00th=[ 161], | 70.00th=[ 161], 80.00th=[ 326], 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= 1961, max= 5793, per=69.11%, avg=3267.33, stdev=2187.72, samples=3 iops : min= 1, max= 5, avg= 2.67, stdev= 2.08, samples=3 write: IOPS=1, BW=1814KiB/s (1857kB/s)(5120KiB/2823msec); 0 zone resets clat (msec): min=161, max=404, avg=280.47, stdev=91.63 lat (msec): min=162, max=404, avg=280.58, stdev=91.63 clat percentiles (msec): | 1.00th=[ 163], 5.00th=[ 163], 10.00th=[ 163], 20.00th=[ 163], | 30.00th=[ 228], 40.00th=[ 228], 50.00th=[ 296], 60.00th=[ 296], | 70.00th=[ 313], 80.00th=[ 313], 90.00th=[ 405], 95.00th=[ 405], | 99.00th=[ 405], 99.50th=[ 405], 99.90th=[ 405], 99.95th=[ 405], | 99.99th=[ 405] bw ( KiB/s): min= 1448, max= 4096, per=35.15%, avg=2326.75, stdev=1198.83, samples=4 iops : min= 1, max= 4, avg= 1.75, stdev= 1.50, samples=4 lat (msec) : 100=33.33%, 250=25.00%, 500=33.33%, 750=8.33% cpu : usr=0.11%, sys=6.06%, ctx=70, 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=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=145691: Tue Sep 8 00:46:25 2026 read: IOPS=0, BW=473KiB/s (484kB/s)(2048KiB/4331msec) clat (msec): min=86, max=271, avg=178.83, stdev=131.21 lat (msec): min=86, max=271, avg=178.84, stdev=131.21 clat percentiles (msec): | 1.00th=[ 87], 5.00th=[ 87], 10.00th=[ 87], 20.00th=[ 87], | 30.00th=[ 87], 40.00th=[ 87], 50.00th=[ 87], 60.00th=[ 271], | 70.00th=[ 271], 80.00th=[ 271], 90.00th=[ 271], 95.00th=[ 271], | 99.00th=[ 271], 99.50th=[ 271], 99.90th=[ 271], 99.95th=[ 271], | 99.99th=[ 271] bw ( KiB/s): min= 1438, max= 1802, per=34.26%, avg=1620.00, stdev=257.39, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2364KiB/s (2421kB/s)(10.0MiB/4331msec); 0 zone resets clat (msec): min=135, max=1060, avg=378.23, stdev=295.23 lat (msec): min=135, max=1060, avg=378.46, stdev=295.24 clat percentiles (msec): | 1.00th=[ 136], 5.00th=[ 136], 10.00th=[ 136], 20.00th=[ 169], | 30.00th=[ 184], 40.00th=[ 194], 50.00th=[ 262], 60.00th=[ 288], | 70.00th=[ 338], 80.00th=[ 430], 90.00th=[ 726], 95.00th=[ 1062], | 99.00th=[ 1062], 99.50th=[ 1062], 99.90th=[ 1062], 99.95th=[ 1062], | 99.99th=[ 1062] bw ( KiB/s): min= 2048, max= 3923, per=47.02%, avg=3113.00, stdev=834.38, samples=4 iops : min= 2, max= 3, avg= 2.50, stdev= 0.58, samples=4 lat (msec) : 100=8.33%, 250=33.33%, 500=41.67%, 750=8.33%, 2000=8.33% cpu : usr=0.07%, sys=7.39%, ctx=118, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145692: Tue Sep 8 00:46:25 2026 read: IOPS=1, BW=1428KiB/s (1462kB/s)(6144KiB/4304msec) clat (msec): min=86, max=650, avg=269.27, stdev=206.30 lat (msec): min=86, max=650, avg=269.27, stdev=206.30 clat percentiles (msec): | 1.00th=[ 87], 5.00th=[ 87], 10.00th=[ 87], 20.00th=[ 112], | 30.00th=[ 112], 40.00th=[ 207], 50.00th=[ 207], 60.00th=[ 232], | 70.00th=[ 330], 80.00th=[ 330], 90.00th=[ 651], 95.00th=[ 651], | 99.00th=[ 651], 99.50th=[ 651], 99.90th=[ 651], 99.95th=[ 651], | 99.99th=[ 651] bw ( KiB/s): min= 1442, max= 3605, per=47.29%, avg=2235.75, stdev=943.54, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1428KiB/s (1462kB/s)(6144KiB/4304msec); 0 zone resets clat (msec): min=104, max=1157, avg=423.30, stdev=441.19 lat (msec): min=104, max=1157, avg=423.42, stdev=441.18 clat percentiles (msec): | 1.00th=[ 105], 5.00th=[ 105], 10.00th=[ 105], 20.00th=[ 125], | 30.00th=[ 125], 40.00th=[ 138], 50.00th=[ 138], 60.00th=[ 239], | 70.00th=[ 776], 80.00th=[ 776], 90.00th=[ 1150], 95.00th=[ 1150], | 99.00th=[ 1150], 99.50th=[ 1150], 99.90th=[ 1150], 99.95th=[ 1150], | 99.99th=[ 1150] bw ( KiB/s): min= 1802, max= 4326, per=41.17%, avg=2725.33, stdev=1391.66, samples=3 iops : min= 1, max= 4, avg= 2.33, stdev= 1.53, samples=3 lat (msec) : 100=8.33%, 250=58.33%, 500=8.33%, 750=8.33%, 1000=8.33% lat (msec) : 2000=8.33% cpu : usr=0.02%, sys=4.32%, ctx=80, 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=145693: Tue Sep 8 00:46:25 2026 read: IOPS=1, BW=1598KiB/s (1636kB/s)(5120KiB/3205msec) clat (msec): min=87, max=483, avg=254.68, stdev=148.66 lat (msec): min=87, max=483, avg=254.68, stdev=148.65 clat percentiles (msec): | 1.00th=[ 88], 5.00th=[ 88], 10.00th=[ 88], 20.00th=[ 88], | 30.00th=[ 194], 40.00th=[ 194], 50.00th=[ 207], 60.00th=[ 207], | 70.00th=[ 300], 80.00th=[ 300], 90.00th=[ 485], 95.00th=[ 485], | 99.00th=[ 485], 99.50th=[ 485], 99.90th=[ 485], 99.95th=[ 485], | 99.99th=[ 485] bw ( KiB/s): min= 1961, max= 4096, per=57.14%, avg=2701.67, stdev=1208.31, samples=3 iops : min= 1, max= 4, avg= 2.33, stdev= 1.53, samples=3 write: IOPS=2, BW=2237KiB/s (2290kB/s)(7168KiB/3205msec); 0 zone resets clat (msec): min=182, max=468, avg=269.74, stdev=102.36 lat (msec): min=182, max=468, avg=269.85, stdev=102.37 clat percentiles (msec): | 1.00th=[ 182], 5.00th=[ 182], 10.00th=[ 182], 20.00th=[ 184], | 30.00th=[ 211], 40.00th=[ 211], 50.00th=[ 241], 60.00th=[ 271], | 70.00th=[ 271], 80.00th=[ 334], 90.00th=[ 468], 95.00th=[ 468], | 99.00th=[ 468], 99.50th=[ 468], 99.90th=[ 468], 99.95th=[ 468], | 99.99th=[ 468] bw ( KiB/s): min= 1961, max= 4326, per=49.81%, avg=3297.33, stdev=1212.15, samples=3 iops : min= 1, max= 4, avg= 2.67, stdev= 1.53, samples=3 lat (msec) : 100=8.33%, 250=50.00%, 500=41.67% cpu : usr=0.06%, sys=6.30%, ctx=71, 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=4729KiB/s (4842kB/s), 473KiB/s-2539KiB/s (484kB/s-2600kB/s), io=20.0MiB (20.0MB), run=2823-4331msec WRITE: bw=6620KiB/s (6779kB/s), 1428KiB/s-2364KiB/s (1462kB/s-2421kB/s), io=28.0MiB (29.4MB), run=2823-4331msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145695: Tue Sep 8 00:46:26 2026 read: IOPS=2, BW=2928KiB/s (2998kB/s)(7168KiB/2448msec) clat (usec): min=585, max=333922, avg=183572.75, stdev=104081.69 lat (usec): min=587, max=333925, avg=183574.45, stdev=104082.07 clat percentiles (usec): | 1.00th=[ 586], 5.00th=[ 586], 10.00th=[ 586], 20.00th=[143655], | 30.00th=[156238], 40.00th=[156238], 50.00th=[173016], 60.00th=[225444], | 70.00th=[225444], 80.00th=[252707], 90.00th=[333448], 95.00th=[333448], | 99.00th=[333448], 99.50th=[333448], 99.90th=[333448], 99.95th=[333448], | 99.99th=[333448] bw ( KiB/s): min= 2035, max= 3757, per=61.37%, avg=3138.67, stdev=958.11, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=2, BW=2092KiB/s (2142kB/s)(5120KiB/2448msec); 0 zone resets clat (msec): min=154, max=406, avg=231.30, stdev=100.59 lat (msec): min=154, max=406, avg=231.40, stdev=100.55 clat percentiles (msec): | 1.00th=[ 155], 5.00th=[ 155], 10.00th=[ 155], 20.00th=[ 155], | 30.00th=[ 178], 40.00th=[ 178], 50.00th=[ 207], 60.00th=[ 207], | 70.00th=[ 213], 80.00th=[ 213], 90.00th=[ 405], 95.00th=[ 405], | 99.00th=[ 405], 99.50th=[ 405], 99.90th=[ 405], 99.95th=[ 405], | 99.99th=[ 405] bw ( KiB/s): min= 2035, max= 6119, per=56.94%, avg=4077.00, stdev=2887.82, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 lat (usec) : 750=8.33% lat (msec) : 250=66.67%, 500=25.00% cpu : usr=0.00%, sys=29.42%, ctx=234, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145696: Tue Sep 8 00:46:26 2026 read: IOPS=0, BW=511KiB/s (524kB/s)(2048KiB/4004msec) clat (usec): min=1736, max=140854, avg=71295.67, stdev=98371.57 lat (usec): min=1737, max=140856, avg=71297.19, stdev=98371.58 clat percentiles (usec): | 1.00th=[ 1729], 5.00th=[ 1729], 10.00th=[ 1729], 20.00th=[ 1729], | 30.00th=[ 1729], 40.00th=[ 1729], 50.00th=[ 1729], 60.00th=[141558], | 70.00th=[141558], 80.00th=[141558], 90.00th=[141558], 95.00th=[141558], | 99.00th=[141558], 99.50th=[141558], 99.90th=[141558], 99.95th=[141558], | 99.99th=[141558] bw ( KiB/s): min= 1802, max= 2035, per=37.51%, avg=1918.50, stdev=164.76, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2557KiB/s (2619kB/s)(10.0MiB/4004msec); 0 zone resets clat (msec): min=120, max=823, avg=385.90, stdev=272.79 lat (msec): min=120, max=823, avg=385.99, stdev=272.77 clat percentiles (msec): | 1.00th=[ 122], 5.00th=[ 122], 10.00th=[ 122], 20.00th=[ 123], | 30.00th=[ 155], 40.00th=[ 184], 50.00th=[ 222], 60.00th=[ 300], | 70.00th=[ 558], 80.00th=[ 676], 90.00th=[ 693], 95.00th=[ 827], | 99.00th=[ 827], 99.50th=[ 827], 99.90th=[ 827], 99.95th=[ 827], | 99.99th=[ 827] bw ( KiB/s): min= 2035, max= 3757, per=32.47%, avg=2324.67, stdev=701.70, samples=6 iops : min= 1, max= 3, avg= 1.33, stdev= 0.82, samples=6 lat (msec) : 2=8.33%, 250=50.00%, 500=8.33%, 750=25.00%, 1000=8.33% cpu : usr=0.00%, sys=17.81%, ctx=111, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145697: Tue Sep 8 00:46:26 2026 read: IOPS=1, BW=1689KiB/s (1730kB/s)(6144KiB/3637msec) clat (usec): min=1181, max=345621, avg=137513.56, stdev=133176.14 lat (usec): min=1182, max=345622, avg=137515.00, stdev=133176.04 clat percentiles (usec): | 1.00th=[ 1188], 5.00th=[ 1188], 10.00th=[ 1188], 20.00th=[ 22938], | 30.00th=[ 22938], 40.00th=[ 93848], 50.00th=[ 93848], 60.00th=[117965], | 70.00th=[244319], 80.00th=[244319], 90.00th=[346031], 95.00th=[346031], | 99.00th=[346031], 99.50th=[346031], 99.90th=[346031], 99.95th=[346031], | 99.99th=[346031] bw ( KiB/s): min= 2035, max= 4079, per=64.34%, avg=3290.33, stdev=1099.01, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=1, BW=1689KiB/s (1730kB/s)(6144KiB/3637msec); 0 zone resets clat (msec): min=199, max=1043, avg=468.32, stdev=331.18 lat (msec): min=199, max=1043, avg=468.45, stdev=331.13 clat percentiles (msec): | 1.00th=[ 201], 5.00th=[ 201], 10.00th=[ 201], 20.00th=[ 271], | 30.00th=[ 271], 40.00th=[ 296], 50.00th=[ 296], 60.00th=[ 305], | 70.00th=[ 693], 80.00th=[ 693], 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= 1878, max= 3357, per=32.50%, avg=2327.25, stdev=690.58, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (msec) : 2=8.33%, 50=8.33%, 100=8.33%, 250=25.00%, 500=33.33% lat (msec) : 750=8.33%, 2000=8.33% cpu : usr=0.06%, sys=16.42%, ctx=184, 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=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=145698: Tue Sep 8 00:46:26 2026 read: IOPS=1, BW=1663KiB/s (1703kB/s)(5120KiB/3079msec) clat (usec): min=752, max=271591, avg=139850.39, stdev=131662.13 lat (usec): min=754, max=271593, avg=139851.85, stdev=131661.85 clat percentiles (usec): | 1.00th=[ 750], 5.00th=[ 750], 10.00th=[ 750], 20.00th=[ 750], | 30.00th=[ 799], 40.00th=[ 799], 50.00th=[177210], 60.00th=[177210], | 70.00th=[248513], 80.00th=[248513], 90.00th=[270533], 95.00th=[270533], | 99.00th=[270533], 99.50th=[270533], 99.90th=[270533], 99.95th=[270533], | 99.99th=[270533] bw ( KiB/s): min= 8143, max= 8143, per=100.00%, avg=8143.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=2, BW=2328KiB/s (2384kB/s)(7168KiB/3079msec); 0 zone resets clat (msec): min=93, max=777, avg=339.29, stdev=240.28 lat (msec): min=93, max=777, avg=339.39, stdev=240.29 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 93], 10.00th=[ 93], 20.00th=[ 117], | 30.00th=[ 213], 40.00th=[ 213], 50.00th=[ 292], 60.00th=[ 393], | 70.00th=[ 393], 80.00th=[ 493], 90.00th=[ 776], 95.00th=[ 776], | 99.00th=[ 776], 99.50th=[ 776], 99.90th=[ 776], 99.95th=[ 776], | 99.99th=[ 776] bw ( KiB/s): min= 1831, max= 4079, per=34.85%, avg=2495.00, stdev=1060.37, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (usec) : 1000=16.67% lat (msec) : 100=8.33%, 250=33.33%, 500=33.33%, 1000=8.33% cpu : usr=0.03%, sys=20.44%, ctx=133, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=5115KiB/s (5238kB/s), 511KiB/s-2928KiB/s (524kB/s-2998kB/s), io=20.0MiB (20.0MB), run=2448-4004msec WRITE: bw=7161KiB/s (7333kB/s), 1689KiB/s-2557KiB/s (1730kB/s-2619kB/s), io=28.0MiB (29.4MB), run=2448-4004msec 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=145704: Tue Sep 8 00:46:40 2026 read: IOPS=1, BW=5227KiB/s (5352kB/s)(12.0MiB/2351msec) clat (msec): min=623, max=859, avg=711.69, stdev=128.65 lat (msec): min=623, max=859, avg=711.69, stdev=128.65 clat percentiles (msec): | 1.00th=[ 625], 5.00th=[ 625], 10.00th=[ 625], 20.00th=[ 625], | 30.00th=[ 625], 40.00th=[ 651], 50.00th=[ 651], 60.00th=[ 651], | 70.00th=[ 860], 80.00th=[ 860], 90.00th=[ 860], 95.00th=[ 860], | 99.00th=[ 860], 99.50th=[ 860], 99.90th=[ 860], 99.95th=[ 860], | 99.99th=[ 860] bw ( KiB/s): min= 7907, max= 8175, per=100.00%, avg=8041.00, stdev=189.50, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=66.67%, 1000=33.33% cpu : usr=0.00%, sys=20.21%, ctx=386, 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=145705: Tue Sep 8 00:46:40 2026 read: IOPS=0, BW=1772KiB/s (1815kB/s)(4096KiB/2311msec) clat (nsec): min=653214k, max=653214k, avg=653213875.00, stdev= 0.00 lat (nsec): min=653215k, max=653215k, avg=653214845.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 651], 5.00th=[ 651], 10.00th=[ 651], 20.00th=[ 651], | 30.00th=[ 651], 40.00th=[ 651], 50.00th=[ 651], 60.00th=[ 651], | 70.00th=[ 651], 80.00th=[ 651], 90.00th=[ 651], 95.00th=[ 651], | 99.00th=[ 651], 99.50th=[ 651], 99.90th=[ 651], 99.95th=[ 651], | 99.99th=[ 651] bw ( KiB/s): min= 7907, max= 7907, per=100.00%, avg=7907.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3545KiB/s (3630kB/s)(8192KiB/2311msec); 0 zone resets clat (msec): min=386, max=1040, avg=713.69, stdev=462.64 lat (msec): min=387, max=1042, avg=715.23, stdev=463.13 clat percentiles (msec): | 1.00th=[ 388], 5.00th=[ 388], 10.00th=[ 388], 20.00th=[ 388], | 30.00th=[ 388], 40.00th=[ 388], 50.00th=[ 388], 60.00th=[ 1045], | 70.00th=[ 1045], 80.00th=[ 1045], 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= 8175, max= 8175, per=75.87%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.00%, sys=8.57%, ctx=139, 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=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=145706: Tue Sep 8 00:46:40 2026 write: IOPS=0, BW=4041KiB/s (4138kB/s)(12.0MiB/3041msec); 0 zone resets clat (msec): min=729, max=1161, avg=944.46, stdev=215.74 lat (msec): min=730, max=1161, avg=944.86, stdev=215.76 clat percentiles (msec): | 1.00th=[ 726], 5.00th=[ 726], 10.00th=[ 726], 20.00th=[ 726], | 30.00th=[ 726], 40.00th=[ 944], 50.00th=[ 944], 60.00th=[ 944], | 70.00th=[ 1167], 80.00th=[ 1167], 90.00th=[ 1167], 95.00th=[ 1167], | 99.00th=[ 1167], 99.50th=[ 1167], 99.90th=[ 1167], 99.95th=[ 1167], | 99.99th=[ 1167] bw ( KiB/s): min= 7907, max= 8047, per=74.03%, avg=7977.00, stdev=98.99, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=9.34%, ctx=71, 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=145707: Tue Sep 8 00:46:40 2026 write: IOPS=1, BW=8095KiB/s (8289kB/s)(12.0MiB/1518msec); 0 zone resets clat (msec): min=353, max=587, avg=447.36, stdev=123.92 lat (msec): min=354, max=588, avg=447.78, stdev=123.99 clat percentiles (msec): | 1.00th=[ 355], 5.00th=[ 355], 10.00th=[ 355], 20.00th=[ 355], | 30.00th=[ 355], 40.00th=[ 401], 50.00th=[ 401], 60.00th=[ 401], | 70.00th=[ 592], 80.00th=[ 592], 90.00th=[ 592], 95.00th=[ 592], | 99.00th=[ 592], 99.50th=[ 592], 99.90th=[ 592], 99.95th=[ 592], | 99.99th=[ 592] bw ( KiB/s): min= 5876, max= 7907, per=63.96%, avg=6891.50, stdev=1436.13, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=66.67%, 750=33.33% cpu : usr=0.07%, sys=10.42%, ctx=80, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=6969KiB/s (7136kB/s), 1772KiB/s-5227KiB/s (1815kB/s-5352kB/s), io=16.0MiB (16.8MB), run=2311-2351msec WRITE: bw=10.5MiB/s (11.0MB/s), 3545KiB/s-8095KiB/s (3630kB/s-8289kB/s), io=32.0MiB (33.6MB), run=1518-3041msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145709: Tue Sep 8 00:46:41 2026 read: IOPS=1, BW=4781KiB/s (4896kB/s)(12.0MiB/2570msec) clat (msec): min=787, max=957, avg=856.45, stdev=89.42 lat (msec): min=787, max=957, avg=856.45, stdev=89.42 clat percentiles (msec): | 1.00th=[ 785], 5.00th=[ 785], 10.00th=[ 785], 20.00th=[ 785], | 30.00th=[ 785], 40.00th=[ 827], 50.00th=[ 827], 60.00th=[ 827], | 70.00th=[ 961], 80.00th=[ 961], 90.00th=[ 961], 95.00th=[ 961], | 99.00th=[ 961], 99.50th=[ 961], 99.90th=[ 961], 99.95th=[ 961], | 99.99th=[ 961] 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=100.00% cpu : usr=0.00%, sys=5.25%, ctx=53, majf=0, minf=7 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145710: Tue Sep 8 00:46:41 2026 read: IOPS=0, BW=1733KiB/s (1774kB/s)(4096KiB/2364msec) clat (nsec): min=583492k, max=583492k, avg=583492087.00, stdev= 0.00 lat (nsec): min=583494k, max=583494k, avg=583493951.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 584], 5.00th=[ 584], 10.00th=[ 584], 20.00th=[ 584], | 30.00th=[ 584], 40.00th=[ 584], 50.00th=[ 584], 60.00th=[ 584], | 70.00th=[ 584], 80.00th=[ 584], 90.00th=[ 584], 95.00th=[ 584], | 99.00th=[ 584], 99.50th=[ 584], 99.90th=[ 584], 99.95th=[ 584], | 99.99th=[ 584] bw ( KiB/s): min= 5720, max= 5720, per=89.73%, avg=5720.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3465KiB/s (3548kB/s)(8192KiB/2364msec); 0 zone resets clat (msec): min=460, max=1317, avg=888.88, stdev=606.45 lat (msec): min=460, max=1318, avg=889.46, stdev=606.17 clat percentiles (msec): | 1.00th=[ 460], 5.00th=[ 460], 10.00th=[ 460], 20.00th=[ 460], | 30.00th=[ 460], 40.00th=[ 460], 50.00th=[ 460], 60.00th=[ 1318], | 70.00th=[ 1318], 80.00th=[ 1318], 90.00th=[ 1318], 95.00th=[ 1318], | 99.00th=[ 1318], 99.50th=[ 1318], 99.90th=[ 1318], 99.95th=[ 1318], | 99.99th=[ 1318] bw ( KiB/s): min= 8175, max= 8175, per=61.95%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.00%, sys=7.28%, ctx=44, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145711: Tue Sep 8 00:46:41 2026 write: IOPS=1, BW=4949KiB/s (5068kB/s)(12.0MiB/2483msec); 0 zone resets clat (msec): min=532, max=1005, avg=817.73, stdev=251.04 lat (msec): min=533, max=1005, avg=818.18, stdev=251.04 clat percentiles (msec): | 1.00th=[ 531], 5.00th=[ 531], 10.00th=[ 531], 20.00th=[ 531], | 30.00th=[ 531], 40.00th=[ 919], 50.00th=[ 919], 60.00th=[ 919], | 70.00th=[ 1003], 80.00th=[ 1003], 90.00th=[ 1003], 95.00th=[ 1003], | 99.00th=[ 1003], 99.50th=[ 1003], 99.90th=[ 1003], 99.95th=[ 1003], | 99.99th=[ 1003] bw ( KiB/s): min= 7086, max= 8192, per=57.89%, avg=7639.00, stdev=782.06, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 750=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.04%, sys=5.28%, ctx=42, majf=0, minf=7 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145712: Tue Sep 8 00:46:41 2026 write: IOPS=2, BW=8354KiB/s (8554kB/s)(12.0MiB/1471msec); 0 zone resets clat (msec): min=266, max=896, avg=485.24, stdev=356.78 lat (msec): min=266, max=897, avg=489.94, stdev=353.36 clat percentiles (msec): | 1.00th=[ 268], 5.00th=[ 268], 10.00th=[ 268], 20.00th=[ 268], | 30.00th=[ 268], 40.00th=[ 292], 50.00th=[ 292], 60.00th=[ 292], | 70.00th=[ 894], 80.00th=[ 894], 90.00th=[ 894], 95.00th=[ 894], | 99.00th=[ 894], 99.50th=[ 894], 99.90th=[ 894], 99.95th=[ 894], | 99.99th=[ 894] bw ( KiB/s): min= 5535, max= 8159, per=51.89%, avg=6847.00, stdev=1855.45, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=66.67%, 1000=33.33% cpu : usr=0.00%, sys=8.84%, ctx=34, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=6375KiB/s (6528kB/s), 1733KiB/s-4781KiB/s (1774kB/s-4896kB/s), io=16.0MiB (16.8MB), run=2364-2570msec WRITE: bw=12.9MiB/s (13.5MB/s), 3465KiB/s-8354KiB/s (3548kB/s-8554kB/s), io=32.0MiB (33.6MB), run=1471-2483msec