== sanity test 398b: DIO and buffer IO race ============== 11:49:41 (1787586581) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 5.23698 s, 9.6 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=179675: Mon Aug 24 11:52:18 2026 read: IOPS=10, BW=43.2KiB/s (44.2kB/s)(5992KiB/138759msec) clat (usec): min=47, max=835040, avg=50247.62, stdev=36860.69 lat (usec): min=47, max=835041, avg=50255.33, stdev=36864.10 clat percentiles (usec): | 1.00th=[ 58], 5.00th=[ 8356], 10.00th=[ 19530], 20.00th=[ 26084], | 30.00th=[ 31589], 40.00th=[ 37487], 50.00th=[ 43779], 60.00th=[ 51119], | 70.00th=[ 59507], 80.00th=[ 70779], 90.00th=[ 89654], 95.00th=[107480], | 99.00th=[145753], 99.50th=[162530], 99.90th=[258999], 99.95th=[834667], | 99.99th=[834667] bw ( KiB/s): min= 7, max= 95, per=24.85%, avg=42.74, stdev=16.56, samples=273 iops : min= 1, max= 23, avg= 9.99, stdev= 4.16, samples=273 write: IOPS=11, BW=45.4KiB/s (46.5kB/s)(6296KiB/138759msec); 0 zone resets clat (usec): min=1003, max=264958, avg=39995.57, stdev=40575.96 lat (usec): min=1006, max=264960, avg=40004.71, stdev=40572.30 clat percentiles (usec): | 1.00th=[ 1172], 5.00th=[ 1385], 10.00th=[ 1942], 20.00th=[ 4686], | 30.00th=[ 8979], 40.00th=[ 19530], 50.00th=[ 29230], 60.00th=[ 39584], | 70.00th=[ 51643], 80.00th=[ 69731], 90.00th=[ 99091], 95.00th=[123208], | 99.00th=[168821], 99.50th=[217056], 99.90th=[242222], 99.95th=[265290], | 99.99th=[265290] bw ( KiB/s): min= 7, max= 125, per=24.80%, avg=44.89, stdev=20.41, samples=273 iops : min= 1, max= 31, avg=10.54, stdev= 5.14, samples=273 lat (usec) : 50=0.03%, 100=1.89%, 250=0.23%, 500=0.03%, 750=0.03% lat (msec) : 2=5.40%, 4=3.94%, 10=7.16%, 20=7.16%, 50=37.99% lat (msec) : 100=27.96%, 250=8.07%, 500=0.07%, 1000=0.03% cpu : usr=0.08%, sys=4.60%, ctx=6570, 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=179676: Mon Aug 24 11:52:18 2026 read: IOPS=10, BW=43.0KiB/s (44.1kB/s)(5940KiB/138080msec) clat (usec): min=37, max=904507, avg=51050.04, stdev=39848.78 lat (usec): min=37, max=904509, avg=51052.01, stdev=39848.70 clat percentiles (usec): | 1.00th=[ 61], 5.00th=[ 10159], 10.00th=[ 18744], 20.00th=[ 25035], | 30.00th=[ 31327], 40.00th=[ 36963], 50.00th=[ 43254], 60.00th=[ 52167], | 70.00th=[ 60556], 80.00th=[ 71828], 90.00th=[ 91751], 95.00th=[110625], | 99.00th=[175113], 99.50th=[191890], 99.90th=[265290], 99.95th=[901776], | 99.99th=[901776] bw ( KiB/s): min= 15, max= 95, per=24.78%, avg=42.61, stdev=15.81, samples=270 iops : min= 3, max= 23, avg= 9.96, stdev= 3.97, samples=270 write: IOPS=11, BW=45.0KiB/s (47.1kB/s)(6348KiB/138080msec); 0 zone resets clat (usec): min=977, max=246636, avg=38894.68, stdev=39698.21 lat (usec): min=978, max=246639, avg=38912.86, stdev=39691.59 clat percentiles (usec): | 1.00th=[ 1139], 5.00th=[ 1385], 10.00th=[ 2040], 20.00th=[ 4686], | 30.00th=[ 8029], 40.00th=[ 17695], 50.00th=[ 26608], 60.00th=[ 37487], | 70.00th=[ 50070], 80.00th=[ 69731], 90.00th=[ 94897], 95.00th=[121111], | 99.00th=[164627], 99.50th=[185598], 99.90th=[244319], 99.95th=[246416], | 99.99th=[246416] bw ( KiB/s): min= 7, max= 111, per=25.02%, avg=45.28, stdev=21.05, samples=271 iops : min= 1, max= 27, avg=10.64, stdev= 5.29, samples=271 lat (usec) : 50=0.10%, 100=1.89%, 250=0.29%, 500=0.03%, 1000=0.07% lat (msec) : 2=5.08%, 4=3.65%, 10=8.17%, 20=8.33%, 50=36.46% lat (msec) : 100=27.70%, 250=8.17%, 500=0.03%, 1000=0.03% cpu : usr=0.09%, sys=4.54%, ctx=6710, 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=179677: Mon Aug 24 11:52:18 2026 read: IOPS=10, BW=43.4KiB/s (44.4kB/s)(6028KiB/138877msec) clat (usec): min=26, max=309281, avg=50967.22, stdev=32892.58 lat (usec): min=26, max=309283, avg=50976.51, stdev=32893.96 clat percentiles (usec): | 1.00th=[ 58], 5.00th=[ 8455], 10.00th=[ 19006], 20.00th=[ 26608], | 30.00th=[ 32637], 40.00th=[ 38536], 50.00th=[ 44827], 60.00th=[ 52691], | 70.00th=[ 60556], 80.00th=[ 72877], 90.00th=[ 90702], 95.00th=[109577], | 99.00th=[160433], 99.50th=[206570], 99.90th=[254804], 99.95th=[308282], | 99.99th=[308282] bw ( KiB/s): min= 7, max= 87, per=24.96%, avg=42.93, stdev=16.47, samples=273 iops : min= 1, max= 21, avg=10.04, stdev= 4.15, samples=273 write: IOPS=11, BW=45.1KiB/s (46.2kB/s)(6260KiB/138877msec); 0 zone resets clat (usec): min=970, max=822105, avg=39361.41, stdev=43716.58 lat (usec): min=971, max=822108, avg=39366.88, stdev=43723.28 clat percentiles (usec): | 1.00th=[ 1156], 5.00th=[ 1467], 10.00th=[ 2089], 20.00th=[ 4359], | 30.00th=[ 7701], 40.00th=[ 16909], 50.00th=[ 29492], 60.00th=[ 39584], | 70.00th=[ 51119], 80.00th=[ 69731], 90.00th=[ 93848], 95.00th=[115868], | 99.00th=[166724], 99.50th=[196084], 99.90th=[242222], 99.95th=[826278], | 99.99th=[826278] bw ( KiB/s): min= 7, max= 103, per=24.89%, avg=45.06, stdev=19.80, samples=270 iops : min= 1, max= 25, avg=10.58, stdev= 4.97, samples=270 lat (usec) : 50=0.16%, 100=1.89%, 250=0.29%, 500=0.03%, 1000=0.03% lat (msec) : 2=4.85%, 4=4.79%, 10=7.85%, 20=7.10%, 50=36.30% lat (msec) : 100=28.91%, 250=7.71%, 500=0.07%, 1000=0.03% cpu : usr=0.08%, sys=4.63%, ctx=6699, 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=179678: Mon Aug 24 11:52:18 2026 read: IOPS=10, BW=43.6KiB/s (44.7kB/s)(6052KiB/138693msec) clat (usec): min=32, max=325990, avg=51352.20, stdev=33629.83 lat (usec): min=33, max=325991, avg=51355.64, stdev=33629.63 clat percentiles (usec): | 1.00th=[ 58], 5.00th=[ 6390], 10.00th=[ 19268], 20.00th=[ 26084], | 30.00th=[ 31851], 40.00th=[ 38536], 50.00th=[ 44827], 60.00th=[ 52167], | 70.00th=[ 61604], 80.00th=[ 72877], 90.00th=[ 92799], 95.00th=[109577], | 99.00th=[170918], 99.50th=[193987], 99.90th=[295699], 99.95th=[325059], | 99.99th=[325059] bw ( KiB/s): min= 7, max= 95, per=24.98%, avg=42.97, stdev=17.20, samples=273 iops : min= 1, max= 23, avg=10.05, stdev= 4.35, samples=273 write: IOPS=11, BW=44.0KiB/s (46.0kB/s)(6236KiB/138693msec); 0 zone resets clat (usec): min=1014, max=906412, avg=38798.85, stdev=44642.60 lat (usec): min=1015, max=906414, avg=38804.41, stdev=44645.03 clat percentiles (usec): | 1.00th=[ 1139], 5.00th=[ 1352], 10.00th=[ 1795], 20.00th=[ 4178], | 30.00th=[ 7701], 40.00th=[ 15926], 50.00th=[ 27657], 60.00th=[ 38536], | 70.00th=[ 51119], 80.00th=[ 67634], 90.00th=[ 93848], 95.00th=[115868], | 99.00th=[158335], 99.50th=[181404], 99.90th=[291505], 99.95th=[910164], | 99.99th=[910164] bw ( KiB/s): min= 7, max= 111, per=24.72%, avg=44.74, stdev=19.81, samples=270 iops : min= 1, max= 27, avg=10.50, stdev= 4.99, samples=270 lat (usec) : 50=0.16%, 100=1.69%, 250=0.29%, 500=0.10%, 750=0.10% lat (msec) : 2=5.73%, 4=4.23%, 10=7.58%, 20=7.39%, 50=35.87% lat (msec) : 100=29.04%, 250=7.68%, 500=0.10%, 1000=0.03% cpu : usr=0.07%, sys=4.43%, ctx=6520, 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=173KiB/s (177kB/s), 43.0KiB/s-43.6KiB/s (44.1kB/s-44.7kB/s), io=23.4MiB (24.6MB), run=138080-138877msec WRITE: bw=181KiB/s (185kB/s), 44.0KiB/s-45.0KiB/s (46.0kB/s-47.1kB/s), io=24.6MiB (25.7MB), run=138080-138877msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179681: Mon Aug 24 11:53:11 2026 read: IOPS=7, BW=31.6KiB/s (32.4kB/s)(5992KiB/189599msec) clat (msec): min=6, max=989, avg=51.69, stdev=49.92 lat (msec): min=6, max=989, avg=51.69, stdev=49.92 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 14], 10.00th=[ 16], 20.00th=[ 21], | 30.00th=[ 26], 40.00th=[ 31], 50.00th=[ 36], 60.00th=[ 44], | 70.00th=[ 56], 80.00th=[ 74], 90.00th=[ 109], 95.00th=[ 146], | 99.00th=[ 218], 99.50th=[ 257], 99.90th=[ 330], 99.95th=[ 995], | 99.99th=[ 995] bw ( KiB/s): min= 7, max= 110, per=25.62%, avg=32.02, stdev=20.52, samples=362 iops : min= 1, max= 27, avg= 7.33, stdev= 5.19, samples=362 write: IOPS=8, BW=33.2KiB/s (34.0kB/s)(6296KiB/189599msec); 0 zone resets clat (msec): min=13, max=364, avg=71.15, stdev=46.20 lat (msec): min=13, max=364, avg=71.16, stdev=46.19 clat percentiles (msec): | 1.00th=[ 19], 5.00th=[ 26], 10.00th=[ 30], 20.00th=[ 36], | 30.00th=[ 42], 40.00th=[ 49], 50.00th=[ 56], 60.00th=[ 67], | 70.00th=[ 83], 80.00th=[ 102], 90.00th=[ 133], 95.00th=[ 163], | 99.00th=[ 234], 99.50th=[ 284], 99.90th=[ 338], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 7, max= 103, per=25.17%, avg=32.98, stdev=19.06, samples=369 iops : min= 1, max= 25, avg= 7.56, stdev= 4.79, samples=369 lat (msec) : 10=0.62%, 20=9.54%, 50=43.62%, 100=29.95%, 250=15.63% lat (msec) : 500=0.62%, 1000=0.03% cpu : usr=0.05%, sys=1.56%, ctx=4620, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179682: Mon Aug 24 11:53:11 2026 read: IOPS=7, BW=31.1KiB/s (31.9kB/s)(5940KiB/190722msec) clat (msec): min=6, max=891, avg=50.84, stdev=48.67 lat (msec): min=6, max=892, avg=50.84, stdev=48.67 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 15], 10.00th=[ 17], 20.00th=[ 21], | 30.00th=[ 26], 40.00th=[ 31], 50.00th=[ 36], 60.00th=[ 42], | 70.00th=[ 52], 80.00th=[ 72], 90.00th=[ 110], 95.00th=[ 140], | 99.00th=[ 215], 99.50th=[ 259], 99.90th=[ 326], 99.95th=[ 894], | 99.99th=[ 894] bw ( KiB/s): min= 7, max= 118, per=25.23%, avg=31.54, stdev=20.78, samples=365 iops : min= 1, max= 29, avg= 7.20, stdev= 5.23, samples=365 write: IOPS=8, BW=33.3KiB/s (34.1kB/s)(6348KiB/190722msec); 0 zone resets clat (msec): min=13, max=359, avg=72.48, stdev=47.36 lat (msec): min=13, max=359, avg=72.48, stdev=47.36 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 25], 10.00th=[ 29], 20.00th=[ 36], | 30.00th=[ 43], 40.00th=[ 51], 50.00th=[ 58], 60.00th=[ 68], | 70.00th=[ 84], 80.00th=[ 105], 90.00th=[ 136], 95.00th=[ 167], | 99.00th=[ 251], 99.50th=[ 284], 99.90th=[ 326], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 7, max= 96, per=25.05%, avg=32.82, stdev=18.53, samples=375 iops : min= 1, max= 24, avg= 7.52, stdev= 4.66, samples=375 lat (msec) : 10=0.49%, 20=9.31%, 50=44.01%, 100=29.04%, 250=16.34% lat (msec) : 500=0.78%, 1000=0.03% cpu : usr=0.06%, sys=1.58%, ctx=4651, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179683: Mon Aug 24 11:53:11 2026 read: IOPS=7, BW=31.9KiB/s (32.6kB/s)(6028KiB/189216msec) clat (msec): min=6, max=272, avg=50.29, stdev=40.54 lat (msec): min=6, max=272, avg=50.29, stdev=40.54 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 14], 10.00th=[ 17], 20.00th=[ 22], | 30.00th=[ 26], 40.00th=[ 31], 50.00th=[ 36], 60.00th=[ 44], | 70.00th=[ 56], 80.00th=[ 74], 90.00th=[ 108], 95.00th=[ 134], | 99.00th=[ 205], 99.50th=[ 220], 99.90th=[ 257], 99.95th=[ 271], | 99.99th=[ 271] bw ( KiB/s): min= 7, max= 119, per=25.64%, avg=32.05, stdev=20.08, samples=365 iops : min= 1, max= 29, avg= 7.32, stdev= 5.04, samples=365 write: IOPS=8, BW=33.1KiB/s (33.9kB/s)(6260KiB/189216msec); 0 zone resets clat (msec): min=11, max=826, avg=72.31, stdev=51.13 lat (msec): min=11, max=826, avg=72.32, stdev=51.13 clat percentiles (msec): | 1.00th=[ 19], 5.00th=[ 25], 10.00th=[ 29], 20.00th=[ 35], | 30.00th=[ 42], 40.00th=[ 49], 50.00th=[ 58], 60.00th=[ 69], | 70.00th=[ 86], 80.00th=[ 103], 90.00th=[ 134], 95.00th=[ 165], | 99.00th=[ 251], 99.50th=[ 300], 99.90th=[ 342], 99.95th=[ 827], | 99.99th=[ 827] bw ( KiB/s): min= 7, max= 111, per=25.18%, avg=32.98, stdev=19.23, samples=368 iops : min= 1, max= 27, avg= 7.57, stdev= 4.85, samples=368 lat (msec) : 10=0.85%, 20=8.76%, 50=44.47%, 100=29.49%, 250=15.85% lat (msec) : 500=0.55%, 1000=0.03% cpu : usr=0.05%, sys=1.57%, ctx=4676, 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=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=179684: Mon Aug 24 11:53:11 2026 read: IOPS=7, BW=31.8KiB/s (32.6kB/s)(6052KiB/190357msec) clat (msec): min=6, max=289, avg=51.21, stdev=42.54 lat (msec): min=6, max=289, avg=51.21, stdev=42.54 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 14], 10.00th=[ 16], 20.00th=[ 21], | 30.00th=[ 26], 40.00th=[ 31], 50.00th=[ 36], 60.00th=[ 44], | 70.00th=[ 56], 80.00th=[ 77], 90.00th=[ 110], 95.00th=[ 142], | 99.00th=[ 205], 99.50th=[ 236], 99.90th=[ 288], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 7, max= 119, per=25.76%, avg=32.21, stdev=20.23, samples=364 iops : min= 1, max= 29, avg= 7.37, stdev= 5.08, samples=364 write: IOPS=8, BW=32.8KiB/s (33.5kB/s)(6236KiB/190357msec); 0 zone resets clat (msec): min=15, max=808, avg=72.23, stdev=49.40 lat (msec): min=15, max=808, avg=72.24, stdev=49.40 clat percentiles (msec): | 1.00th=[ 20], 5.00th=[ 26], 10.00th=[ 30], 20.00th=[ 36], | 30.00th=[ 43], 40.00th=[ 51], 50.00th=[ 58], 60.00th=[ 69], | 70.00th=[ 85], 80.00th=[ 102], 90.00th=[ 131], 95.00th=[ 163], | 99.00th=[ 243], 99.50th=[ 292], 99.90th=[ 342], 99.95th=[ 810], | 99.99th=[ 810] bw ( KiB/s): min= 7, max= 96, per=24.83%, avg=32.53, stdev=18.22, samples=371 iops : min= 1, max= 24, avg= 7.45, stdev= 4.59, samples=371 lat (msec) : 10=0.75%, 20=9.05%, 50=43.39%, 100=29.75%, 250=16.44% lat (msec) : 500=0.59%, 1000=0.03% cpu : usr=0.05%, sys=1.61%, ctx=4705, 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=126KiB/s (129kB/s), 31.1KiB/s-31.9KiB/s (31.9kB/s-32.6kB/s), io=23.4MiB (24.6MB), run=189216-190722msec WRITE: bw=132KiB/s (135kB/s), 32.8KiB/s-33.3KiB/s (33.5kB/s-34.1kB/s), io=24.6MiB (25.7MB), run=189216-190722msec 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=179729: Mon Aug 24 11:54:02 2026 read: IOPS=9, BW=154KiB/s (158kB/s)(5920KiB/38459msec) clat (usec): min=40, max=251737, avg=56988.78, stdev=39481.48 lat (usec): min=41, max=251739, avg=56990.69, stdev=39481.65 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 77], 10.00th=[ 13566], 20.00th=[ 29754], | 30.00th=[ 36439], 40.00th=[ 45351], 50.00th=[ 51119], 60.00th=[ 57934], | 70.00th=[ 69731], 80.00th=[ 79168], 90.00th=[101188], 95.00th=[126354], | 99.00th=[225444], 99.50th=[248513], 99.90th=[252707], 99.95th=[252707], | 99.99th=[252707] bw ( KiB/s): min= 31, max= 352, per=26.12%, avg=154.86, stdev=65.29, samples=74 iops : min= 1, max= 22, avg= 8.86, stdev= 4.15, samples=74 write: IOPS=10, BW=166KiB/s (170kB/s)(6368KiB/38459msec); 0 zone resets clat (usec): min=1509, max=219262, avg=43447.42, stdev=44268.94 lat (usec): min=1511, max=219266, avg=43454.83, stdev=44271.47 clat percentiles (usec): | 1.00th=[ 1729], 5.00th=[ 2008], 10.00th=[ 2868], 20.00th=[ 7046], | 30.00th=[ 11207], 40.00th=[ 20841], 50.00th=[ 26870], 60.00th=[ 41157], | 70.00th=[ 54264], 80.00th=[ 77071], 90.00th=[103285], 95.00th=[131597], | 99.00th=[202376], 99.50th=[219153], 99.90th=[219153], 99.95th=[219153], | 99.99th=[219153] bw ( KiB/s): min= 31, max= 448, per=26.51%, avg=165.41, stdev=85.22, samples=75 iops : min= 1, max= 28, avg= 9.53, stdev= 5.39, samples=75 lat (usec) : 50=0.26%, 100=3.52%, 250=0.52%, 500=0.13%, 750=0.13% lat (msec) : 2=2.47%, 4=4.43%, 10=7.29%, 20=7.03%, 50=32.16% lat (msec) : 100=30.86%, 250=11.07%, 500=0.13% cpu : usr=0.08%, sys=4.72%, ctx=1692, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179730: Mon Aug 24 11:54:02 2026 read: IOPS=8, BW=142KiB/s (146kB/s)(5744KiB/40363msec) clat (usec): min=54, max=289942, avg=60699.75, stdev=37201.72 lat (usec): min=55, max=289943, avg=60703.13, stdev=37203.32 clat percentiles (usec): | 1.00th=[ 68], 5.00th=[ 5538], 10.00th=[ 24773], 20.00th=[ 33162], | 30.00th=[ 40633], 40.00th=[ 47449], 50.00th=[ 55837], 60.00th=[ 64226], | 70.00th=[ 71828], 80.00th=[ 82314], 90.00th=[102237], 95.00th=[126354], | 99.00th=[187696], 99.50th=[261096], 99.90th=[291505], 99.95th=[291505], | 99.99th=[291505] bw ( KiB/s): min= 31, max= 318, per=24.20%, avg=143.49, stdev=61.49, samples=78 iops : min= 1, max= 19, avg= 8.15, stdev= 3.86, samples=78 write: IOPS=10, BW=162KiB/s (166kB/s)(6544KiB/40363msec); 0 zone resets clat (usec): min=1545, max=262031, avg=45064.60, stdev=45245.49 lat (usec): min=1547, max=262034, avg=45072.01, stdev=45242.34 clat percentiles (usec): | 1.00th=[ 1811], 5.00th=[ 2540], 10.00th=[ 4080], 20.00th=[ 7177], | 30.00th=[ 12256], 40.00th=[ 20055], 50.00th=[ 31589], 60.00th=[ 43779], | 70.00th=[ 58459], 80.00th=[ 78119], 90.00th=[107480], 95.00th=[131597], | 99.00th=[193987], 99.50th=[208667], 99.90th=[261096], 99.95th=[261096], | 99.99th=[261096] bw ( KiB/s): min= 31, max= 352, per=25.87%, avg=161.44, stdev=74.15, samples=79 iops : min= 1, max= 22, avg= 9.29, stdev= 4.70, samples=79 lat (usec) : 100=1.95%, 250=0.13% lat (msec) : 2=1.95%, 4=3.26%, 10=9.51%, 20=7.68%, 50=29.95% lat (msec) : 100=33.20%, 250=11.85%, 500=0.52% cpu : usr=0.08%, sys=4.57%, ctx=1722, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179731: Mon Aug 24 11:54:02 2026 read: IOPS=9, BW=157KiB/s (161kB/s)(6256KiB/39766msec) clat (usec): min=54, max=274724, avg=59250.84, stdev=40709.95 lat (usec): min=55, max=274726, avg=59252.75, stdev=40709.83 clat percentiles (usec): | 1.00th=[ 65], 5.00th=[ 91], 10.00th=[ 21103], 20.00th=[ 29230], | 30.00th=[ 37487], 40.00th=[ 45351], 50.00th=[ 51643], 60.00th=[ 60031], | 70.00th=[ 70779], 80.00th=[ 84411], 90.00th=[108528], 95.00th=[129500], | 99.00th=[227541], 99.50th=[256902], 99.90th=[274727], 99.95th=[274727], | 99.99th=[274727] bw ( KiB/s): min= 31, max= 383, per=26.53%, avg=157.32, stdev=61.80, samples=78 iops : min= 1, max= 23, avg= 9.03, stdev= 3.89, samples=78 write: IOPS=9, BW=152KiB/s (155kB/s)(6032KiB/39766msec); 0 zone resets clat (usec): min=1663, max=213269, avg=43520.98, stdev=42367.25 lat (usec): min=1663, max=213272, avg=43525.08, stdev=42368.24 clat percentiles (usec): | 1.00th=[ 1876], 5.00th=[ 2737], 10.00th=[ 4228], 20.00th=[ 8586], | 30.00th=[ 13042], 40.00th=[ 19792], 50.00th=[ 28967], 60.00th=[ 41681], | 70.00th=[ 55837], 80.00th=[ 72877], 90.00th=[107480], 95.00th=[135267], | 99.00th=[185598], 99.50th=[202376], 99.90th=[212861], 99.95th=[212861], | 99.99th=[212861] bw ( KiB/s): min= 31, max= 349, per=23.79%, avg=148.47, stdev=69.00, samples=78 iops : min= 1, max= 21, avg= 8.47, stdev= 4.37, samples=78 lat (usec) : 100=2.73%, 250=0.78% lat (msec) : 2=1.30%, 4=3.65%, 10=6.64%, 20=9.64%, 50=32.29% lat (msec) : 100=31.25%, 250=11.46%, 500=0.26% cpu : usr=0.07%, sys=4.17%, ctx=1650, 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=179732: Mon Aug 24 11:54:02 2026 read: IOPS=9, BW=156KiB/s (160kB/s)(6032KiB/38566msec) clat (usec): min=49, max=229950, avg=56228.61, stdev=34511.95 lat (usec): min=50, max=229952, avg=56247.48, stdev=34511.01 clat percentiles (usec): | 1.00th=[ 58], 5.00th=[ 82], 10.00th=[ 18482], 20.00th=[ 31589], | 30.00th=[ 38536], 40.00th=[ 45351], 50.00th=[ 52167], 60.00th=[ 60556], | 70.00th=[ 68682], 80.00th=[ 82314], 90.00th=[ 98042], 95.00th=[112722], | 99.00th=[164627], 99.50th=[191890], 99.90th=[229639], 99.95th=[229639], | 99.99th=[229639] bw ( KiB/s): min= 31, max= 318, per=26.29%, avg=155.88, stdev=58.81, samples=76 iops : min= 1, max= 19, avg= 8.92, stdev= 3.69, samples=76 write: IOPS=10, BW=162KiB/s (166kB/s)(6256KiB/38566msec); 0 zone resets clat (usec): min=1505, max=270086, avg=43644.82, stdev=42135.68 lat (usec): min=1507, max=270089, avg=43650.01, stdev=42134.16 clat percentiles (usec): | 1.00th=[ 1876], 5.00th=[ 3163], 10.00th=[ 4293], 20.00th=[ 7832], | 30.00th=[ 13435], 40.00th=[ 20841], 50.00th=[ 29754], 60.00th=[ 43254], | 70.00th=[ 55837], 80.00th=[ 74974], 90.00th=[101188], 95.00th=[133694], | 99.00th=[177210], 99.50th=[187696], 99.90th=[270533], 99.95th=[270533], | 99.99th=[270533] bw ( KiB/s): min= 31, max= 317, per=25.96%, avg=161.99, stdev=77.13, samples=76 iops : min= 1, max= 19, avg= 9.32, stdev= 4.86, samples=76 lat (usec) : 50=0.13%, 100=2.99%, 250=1.04% lat (msec) : 2=1.17%, 4=2.60%, 10=8.85%, 20=8.72%, 50=30.99% lat (msec) : 100=33.85%, 250=9.51%, 500=0.13% cpu : usr=0.05%, sys=4.68%, ctx=1724, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=593KiB/s (608kB/s), 142KiB/s-157KiB/s (146kB/s-161kB/s), io=23.4MiB (24.5MB), run=38459-40363msec WRITE: bw=624KiB/s (639kB/s), 152KiB/s-166KiB/s (155kB/s-170kB/s), io=24.6MiB (25.8MB), run=38459-40363msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179734: Mon Aug 24 11:54:18 2026 read: IOPS=6, BW=109KiB/s (112kB/s)(5920KiB/54190msec) clat (msec): min=8, max=264, avg=55.95, stdev=43.31 lat (msec): min=8, max=264, avg=55.95, stdev=43.31 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 16], 10.00th=[ 20], 20.00th=[ 26], | 30.00th=[ 31], 40.00th=[ 36], 50.00th=[ 44], 60.00th=[ 51], | 70.00th=[ 61], 80.00th=[ 74], 90.00th=[ 110], 95.00th=[ 150], | 99.00th=[ 224], 99.50th=[ 253], 99.90th=[ 266], 99.95th=[ 266], | 99.99th=[ 266] bw ( KiB/s): min= 31, max= 287, per=26.59%, avg=114.60, stdev=58.85, samples=100 iops : min= 1, max= 17, avg= 6.33, stdev= 3.68, samples=100 write: IOPS=7, BW=118KiB/s (120kB/s)(6368KiB/54190msec); 0 zone resets clat (msec): min=21, max=338, avg=83.43, stdev=52.99 lat (msec): min=21, max=338, avg=83.44, stdev=52.99 clat percentiles (msec): | 1.00th=[ 27], 5.00th=[ 32], 10.00th=[ 38], 20.00th=[ 44], | 30.00th=[ 50], 40.00th=[ 57], 50.00th=[ 65], 60.00th=[ 73], | 70.00th=[ 94], 80.00th=[ 122], 90.00th=[ 159], 95.00th=[ 197], | 99.00th=[ 253], 99.50th=[ 321], 99.90th=[ 338], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 30, max= 255, per=26.04%, avg=117.96, stdev=57.48, samples=105 iops : min= 1, max= 15, avg= 6.53, stdev= 3.62, samples=105 lat (msec) : 10=0.39%, 20=5.08%, 50=39.06%, 100=35.16%, 250=19.53% lat (msec) : 500=0.78% cpu : usr=0.06%, sys=1.61%, ctx=1172, 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=179735: Mon Aug 24 11:54:18 2026 read: IOPS=6, BW=104KiB/s (106kB/s)(5744KiB/55339msec) clat (msec): min=9, max=272, avg=59.96, stdev=47.69 lat (msec): min=9, max=272, avg=59.96, stdev=47.68 clat percentiles (msec): | 1.00th=[ 12], 5.00th=[ 18], 10.00th=[ 21], 20.00th=[ 26], | 30.00th=[ 31], 40.00th=[ 37], 50.00th=[ 45], 60.00th=[ 55], | 70.00th=[ 68], 80.00th=[ 82], 90.00th=[ 130], 95.00th=[ 171], | 99.00th=[ 249], 99.50th=[ 268], 99.90th=[ 271], 99.95th=[ 271], | 99.99th=[ 271] bw ( KiB/s): min= 27, max= 383, per=25.71%, avg=110.80, stdev=68.79, samples=102 iops : min= 1, max= 23, avg= 6.08, stdev= 4.31, samples=102 write: IOPS=7, BW=118KiB/s (121kB/s)(6544KiB/55339msec); 0 zone resets clat (msec): min=21, max=327, avg=82.04, stdev=52.92 lat (msec): min=21, max=327, avg=82.05, stdev=52.92 clat percentiles (msec): | 1.00th=[ 24], 5.00th=[ 29], 10.00th=[ 35], 20.00th=[ 41], | 30.00th=[ 49], 40.00th=[ 57], 50.00th=[ 65], 60.00th=[ 78], | 70.00th=[ 94], 80.00th=[ 122], 90.00th=[ 153], 95.00th=[ 205], | 99.00th=[ 251], 99.50th=[ 279], 99.90th=[ 326], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 31, max= 287, per=26.48%, avg=119.97, stdev=63.07, samples=107 iops : min= 1, max= 17, avg= 6.65, stdev= 3.96, samples=107 lat (msec) : 10=0.39%, 20=3.91%, 50=38.80%, 100=36.33%, 250=19.53% lat (msec) : 500=1.04% cpu : usr=0.04%, sys=1.41%, ctx=1130, 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=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=179736: Mon Aug 24 11:54:18 2026 read: IOPS=7, BW=113KiB/s (115kB/s)(6256KiB/55514msec) clat (msec): min=8, max=273, avg=59.32, stdev=47.95 lat (msec): min=8, max=273, avg=59.32, stdev=47.95 clat percentiles (msec): | 1.00th=[ 12], 5.00th=[ 18], 10.00th=[ 21], 20.00th=[ 26], | 30.00th=[ 31], 40.00th=[ 35], 50.00th=[ 42], 60.00th=[ 51], | 70.00th=[ 62], 80.00th=[ 84], 90.00th=[ 136], 95.00th=[ 167], | 99.00th=[ 226], 99.50th=[ 259], 99.90th=[ 275], 99.95th=[ 275], | 99.99th=[ 275] bw ( KiB/s): min= 31, max= 351, per=26.89%, avg=115.92, stdev=78.01, samples=106 iops : min= 1, max= 21, avg= 6.41, stdev= 4.92, samples=106 write: IOPS=6, BW=109KiB/s (111kB/s)(6032KiB/55514msec); 0 zone resets clat (msec): min=18, max=322, avg=85.44, stdev=56.75 lat (msec): min=18, max=322, avg=85.45, stdev=56.75 clat percentiles (msec): | 1.00th=[ 22], 5.00th=[ 30], 10.00th=[ 34], 20.00th=[ 43], | 30.00th=[ 51], 40.00th=[ 57], 50.00th=[ 66], 60.00th=[ 81], | 70.00th=[ 95], 80.00th=[ 122], 90.00th=[ 169], 95.00th=[ 213], | 99.00th=[ 284], 99.50th=[ 321], 99.90th=[ 321], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 30, max= 253, per=24.32%, avg=110.17, stdev=55.00, samples=106 iops : min= 1, max= 15, avg= 6.04, stdev= 3.45, samples=106 lat (msec) : 10=0.26%, 20=4.43%, 50=40.10%, 100=33.59%, 250=20.31% lat (msec) : 500=1.30% cpu : usr=0.04%, sys=1.38%, ctx=1243, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179737: Mon Aug 24 11:54:18 2026 read: IOPS=6, BW=109KiB/s (112kB/s)(6032KiB/55310msec) clat (msec): min=10, max=267, avg=62.09, stdev=46.17 lat (msec): min=10, max=267, avg=62.09, stdev=46.17 clat percentiles (msec): | 1.00th=[ 15], 5.00th=[ 19], 10.00th=[ 22], 20.00th=[ 28], | 30.00th=[ 33], 40.00th=[ 39], 50.00th=[ 47], 60.00th=[ 56], | 70.00th=[ 70], 80.00th=[ 86], 90.00th=[ 130], 95.00th=[ 161], | 99.00th=[ 239], 99.50th=[ 266], 99.90th=[ 268], 99.95th=[ 268], | 99.99th=[ 268] bw ( KiB/s): min= 31, max= 318, per=26.49%, avg=114.16, stdev=62.21, samples=103 iops : min= 1, max= 19, avg= 6.28, stdev= 3.91, samples=103 write: IOPS=7, BW=113KiB/s (116kB/s)(6256KiB/55310msec); 0 zone resets clat (msec): min=21, max=312, avg=81.28, stdev=52.28 lat (msec): min=21, max=312, avg=81.29, stdev=52.28 clat percentiles (msec): | 1.00th=[ 24], 5.00th=[ 30], 10.00th=[ 35], 20.00th=[ 43], | 30.00th=[ 50], 40.00th=[ 55], 50.00th=[ 65], 60.00th=[ 72], | 70.00th=[ 88], 80.00th=[ 115], 90.00th=[ 157], 95.00th=[ 194], | 99.00th=[ 251], 99.50th=[ 279], 99.90th=[ 313], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 31, max= 319, per=25.39%, avg=115.04, stdev=61.93, samples=107 iops : min= 1, max= 19, avg= 6.35, stdev= 3.89, samples=107 lat (msec) : 20=3.12%, 50=38.93%, 100=37.24%, 250=19.79%, 500=0.91% cpu : usr=0.06%, sys=1.49%, ctx=1190, 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=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=431KiB/s (442kB/s), 104KiB/s-113KiB/s (106kB/s-115kB/s), io=23.4MiB (24.5MB), run=54190-55514msec WRITE: bw=454KiB/s (465kB/s), 109KiB/s-118KiB/s (111kB/s-121kB/s), io=24.6MiB (25.8MB), run=54190-55514msec 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=179752: Mon Aug 24 11:54:34 2026 read: IOPS=1, BW=1665KiB/s (1705kB/s)(7168KiB/4306msec) clat (usec): min=1783, max=542141, avg=291674.33, stdev=184217.85 lat (usec): min=1784, max=542142, avg=291675.56, stdev=184217.80 clat percentiles (usec): | 1.00th=[ 1778], 5.00th=[ 1778], 10.00th=[ 1778], 20.00th=[219153], | 30.00th=[248513], 40.00th=[248513], 50.00th=[248513], 60.00th=[270533], | 70.00th=[270533], 80.00th=[509608], 90.00th=[541066], 95.00th=[541066], | 99.00th=[541066], 99.50th=[541066], 99.90th=[541066], 99.95th=[541066], | 99.99th=[541066] bw ( KiB/s): min= 1374, max= 4063, per=57.05%, avg=2298.60, stdev=1025.46, samples=5 iops : min= 1, max= 3, avg= 1.60, stdev= 0.89, samples=5 write: IOPS=1, BW=1189KiB/s (1218kB/s)(5120KiB/4306msec); 0 zone resets clat (msec): min=251, max=568, avg=391.68, stdev=127.33 lat (msec): min=251, max=568, avg=392.02, stdev=127.30 clat percentiles (msec): | 1.00th=[ 251], 5.00th=[ 251], 10.00th=[ 251], 20.00th=[ 251], | 30.00th=[ 305], 40.00th=[ 305], 50.00th=[ 372], 60.00th=[ 372], | 70.00th=[ 464], 80.00th=[ 464], 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= 1903, max= 3690, per=45.15%, avg=2547.00, stdev=992.52, samples=3 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=3 lat (msec) : 2=8.33%, 250=25.00%, 500=41.67%, 750=25.00% cpu : usr=0.05%, sys=13.19%, ctx=149, 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=179753: Mon Aug 24 11:54:34 2026 read: IOPS=0, BW=403KiB/s (413kB/s)(2048KiB/5082msec) clat (usec): min=1696, max=207471, avg=104584.21, stdev=145504.60 lat (usec): min=1698, max=207632, avg=104665.25, stdev=145617.48 clat percentiles (usec): | 1.00th=[ 1696], 5.00th=[ 1696], 10.00th=[ 1696], 20.00th=[ 1696], | 30.00th=[ 1696], 40.00th=[ 1696], 50.00th=[ 1696], 60.00th=[206570], | 70.00th=[206570], 80.00th=[206570], 90.00th=[206570], 95.00th=[206570], | 99.00th=[206570], 99.50th=[206570], 99.90th=[206570], 99.95th=[206570], | 99.99th=[206570] bw ( KiB/s): min= 1363, max= 1903, per=40.53%, avg=1633.00, stdev=381.84, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=2015KiB/s (2063kB/s)(10.0MiB/5082msec); 0 zone resets clat (msec): min=187, max=802, avg=451.19, stdev=232.44 lat (msec): min=187, max=802, avg=451.49, stdev=232.24 clat percentiles (msec): | 1.00th=[ 188], 5.00th=[ 188], 10.00th=[ 188], 20.00th=[ 213], | 30.00th=[ 259], 40.00th=[ 268], 50.00th=[ 342], 60.00th=[ 477], | 70.00th=[ 518], 80.00th=[ 701], 90.00th=[ 751], 95.00th=[ 802], | 99.00th=[ 802], 99.50th=[ 802], 99.90th=[ 802], 99.95th=[ 802], | 99.99th=[ 802] bw ( KiB/s): min= 1903, max= 6000, per=63.75%, avg=3596.00, stdev=1692.24, samples=5 iops : min= 1, max= 5, avg= 2.80, stdev= 1.79, samples=5 lat (msec) : 2=8.33%, 250=25.00%, 500=33.33%, 750=25.00%, 1000=8.33% cpu : usr=0.00%, sys=9.64%, ctx=120, 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=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=179755: Mon Aug 24 11:54:34 2026 read: IOPS=1, BW=1343KiB/s (1375kB/s)(6144KiB/4574msec) clat (usec): min=474, max=483566, avg=175105.12, stdev=207960.36 lat (usec): min=475, max=483567, avg=175106.19, stdev=207960.30 clat percentiles (usec): | 1.00th=[ 474], 5.00th=[ 474], 10.00th=[ 474], 20.00th=[ 523], | 30.00th=[ 523], 40.00th=[ 7242], 50.00th=[ 7242], 60.00th=[208667], | 70.00th=[350225], 80.00th=[350225], 90.00th=[484443], 95.00th=[484443], | 99.00th=[484443], 99.50th=[484443], 99.90th=[484443], 99.95th=[484443], | 99.99th=[484443] bw ( KiB/s): min= 2031, max= 3992, per=81.86%, avg=3298.00, stdev=1098.92, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=1, BW=1343KiB/s (1375kB/s)(6144KiB/4574msec); 0 zone resets clat (msec): min=189, max=1243, avg=573.51, stdev=460.02 lat (msec): min=196, max=1243, avg=574.79, stdev=458.80 clat percentiles (msec): | 1.00th=[ 190], 5.00th=[ 190], 10.00th=[ 190], 20.00th=[ 234], | 30.00th=[ 234], 40.00th=[ 334], 50.00th=[ 334], 60.00th=[ 372], | 70.00th=[ 1070], 80.00th=[ 1070], 90.00th=[ 1250], 95.00th=[ 1250], | 99.00th=[ 1250], 99.50th=[ 1250], 99.90th=[ 1250], 99.95th=[ 1250], | 99.99th=[ 1250] bw ( KiB/s): min= 1973, max= 2031, per=35.63%, avg=2010.00, stdev=25.14, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (usec) : 500=8.33%, 750=8.33% lat (msec) : 10=8.33%, 250=25.00%, 500=33.33%, 2000=16.67% cpu : usr=0.00%, sys=8.48%, ctx=164, 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=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=179756: Mon Aug 24 11:54:34 2026 read: IOPS=1, BW=1237KiB/s (1267kB/s)(5120KiB/4139msec) clat (usec): min=397, max=416015, avg=160128.70, stdev=216969.10 lat (usec): min=398, max=416016, avg=160129.62, stdev=216969.19 clat percentiles (usec): | 1.00th=[ 400], 5.00th=[ 400], 10.00th=[ 400], 20.00th=[ 400], | 30.00th=[ 1614], 40.00th=[ 1614], 50.00th=[ 3916], 60.00th=[ 3916], | 70.00th=[379585], 80.00th=[379585], 90.00th=[417334], 95.00th=[417334], | 99.00th=[417334], 99.50th=[417334], 99.90th=[417334], 99.95th=[417334], | 99.99th=[417334] bw ( KiB/s): min= 7613, max= 7613, per=100.00%, avg=7613.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=1, BW=1732KiB/s (1773kB/s)(7168KiB/4139msec); 0 zone resets clat (msec): min=251, max=729, avg=441.07, stdev=190.94 lat (msec): min=251, max=736, avg=442.22, stdev=192.71 clat percentiles (msec): | 1.00th=[ 251], 5.00th=[ 251], 10.00th=[ 251], 20.00th=[ 255], | 30.00th=[ 255], 40.00th=[ 255], 50.00th=[ 498], 60.00th=[ 514], | 70.00th=[ 514], 80.00th=[ 592], 90.00th=[ 726], 95.00th=[ 726], | 99.00th=[ 726], 99.50th=[ 726], 99.90th=[ 726], 99.95th=[ 726], | 99.99th=[ 726] bw ( KiB/s): min= 1356, max= 2048, per=32.81%, avg=1850.60, stdev=287.73, samples=5 iops : min= 1, max= 2, avg= 1.20, stdev= 0.45, samples=5 lat (usec) : 500=8.33% lat (msec) : 2=8.33%, 4=8.33%, 500=50.00%, 750=25.00% cpu : usr=0.00%, sys=12.47%, ctx=240, 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=4030KiB/s (4127kB/s), 403KiB/s-1665KiB/s (413kB/s-1705kB/s), io=20.0MiB (20.0MB), run=4139-5082msec WRITE: bw=5642KiB/s (5777kB/s), 1189KiB/s-2015KiB/s (1218kB/s-2063kB/s), io=28.0MiB (29.4MB), run=4139-5082msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179754: Mon Aug 24 11:54:35 2026 read: IOPS=1, BW=1307KiB/s (1339kB/s)(7168KiB/5483msec) clat (msec): min=119, max=638, avg=290.78, stdev=240.22 lat (msec): min=119, max=639, avg=290.98, stdev=240.55 clat percentiles (msec): | 1.00th=[ 120], 5.00th=[ 120], 10.00th=[ 120], 20.00th=[ 121], | 30.00th=[ 125], 40.00th=[ 125], 50.00th=[ 142], 60.00th=[ 259], | 70.00th=[ 259], 80.00th=[ 634], 90.00th=[ 642], 95.00th=[ 642], | 99.00th=[ 642], 99.50th=[ 642], 99.90th=[ 642], 99.95th=[ 642], | 99.99th=[ 642] bw ( KiB/s): min= 1861, max= 4524, per=73.09%, avg=2605.75, stdev=1281.00, samples=4 iops : min= 1, max= 4, avg= 1.75, stdev= 1.50, samples=4 write: IOPS=0, BW=934KiB/s (956kB/s)(5120KiB/5483msec); 0 zone resets clat (msec): min=461, max=989, avg=674.50, stdev=254.11 lat (msec): min=461, max=989, avg=674.65, stdev=254.10 clat percentiles (msec): | 1.00th=[ 460], 5.00th=[ 460], 10.00th=[ 460], 20.00th=[ 460], | 30.00th=[ 485], 40.00th=[ 485], 50.00th=[ 531], 60.00th=[ 531], | 70.00th=[ 911], 80.00th=[ 911], 90.00th=[ 986], 95.00th=[ 986], | 99.00th=[ 986], 99.50th=[ 986], 99.90th=[ 986], 99.95th=[ 986], | 99.99th=[ 986] bw ( KiB/s): min= 1988, max= 4023, per=53.76%, avg=2683.33, stdev=1160.47, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 250=33.33%, 500=25.00%, 750=25.00%, 1000=16.67% cpu : usr=0.04%, sys=4.21%, ctx=109, 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=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=179757: Mon Aug 24 11:54:35 2026 read: IOPS=0, BW=363KiB/s (372kB/s)(2048KiB/5641msec) clat (msec): min=246, max=694, avg=470.63, stdev=316.91 lat (msec): min=246, max=694, avg=470.63, stdev=316.91 clat percentiles (msec): | 1.00th=[ 247], 5.00th=[ 247], 10.00th=[ 247], 20.00th=[ 247], | 30.00th=[ 247], 40.00th=[ 247], 50.00th=[ 247], 60.00th=[ 693], | 70.00th=[ 693], 80.00th=[ 693], 90.00th=[ 693], 95.00th=[ 693], | 99.00th=[ 693], 99.50th=[ 693], 99.90th=[ 693], 99.95th=[ 693], | 99.99th=[ 693] bw ( KiB/s): min= 2039, max= 2043, per=57.25%, avg=2041.00, stdev= 2.83, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1815KiB/s (1859kB/s)(10.0MiB/5641msec); 0 zone resets clat (msec): min=147, max=786, avg=440.58, stdev=214.67 lat (msec): min=147, max=786, avg=440.82, stdev=214.48 clat percentiles (msec): | 1.00th=[ 148], 5.00th=[ 148], 10.00th=[ 148], 20.00th=[ 209], | 30.00th=[ 230], 40.00th=[ 376], 50.00th=[ 405], 60.00th=[ 422], | 70.00th=[ 550], 80.00th=[ 567], 90.00th=[ 718], 95.00th=[ 785], | 99.00th=[ 785], 99.50th=[ 785], 99.90th=[ 785], 99.95th=[ 785], | 99.99th=[ 785] bw ( KiB/s): min= 1954, max= 4047, per=46.94%, avg=2343.00, stdev=835.32, samples=6 iops : min= 1, max= 3, avg= 1.33, stdev= 0.82, samples=6 lat (msec) : 250=33.33%, 500=25.00%, 750=33.33%, 1000=8.33% cpu : usr=0.02%, sys=4.18%, ctx=119, 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=179758: Mon Aug 24 11:54:35 2026 read: IOPS=1, BW=1130KiB/s (1158kB/s)(6144KiB/5435msec) clat (msec): min=69, max=512, avg=250.88, stdev=153.02 lat (msec): min=69, max=512, avg=250.89, stdev=153.02 clat percentiles (msec): | 1.00th=[ 70], 5.00th=[ 70], 10.00th=[ 70], 20.00th=[ 153], | 30.00th=[ 153], 40.00th=[ 224], 50.00th=[ 224], 60.00th=[ 228], | 70.00th=[ 321], 80.00th=[ 321], 90.00th=[ 514], 95.00th=[ 514], | 99.00th=[ 514], 99.50th=[ 514], 99.90th=[ 514], 99.95th=[ 514], | 99.99th=[ 514] bw ( KiB/s): min= 1861, max= 4031, per=69.12%, avg=2464.25, stdev=1046.33, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1130KiB/s (1158kB/s)(6144KiB/5435msec); 0 zone resets clat (msec): min=116, max=1434, avg=593.45, stdev=524.43 lat (msec): min=116, max=1434, avg=593.53, stdev=524.42 clat percentiles (msec): | 1.00th=[ 116], 5.00th=[ 116], 10.00th=[ 116], 20.00th=[ 142], | 30.00th=[ 142], 40.00th=[ 230], 50.00th=[ 230], 60.00th=[ 785], | 70.00th=[ 852], 80.00th=[ 852], 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= 2011, max= 4047, per=60.75%, avg=3032.00, stdev=1162.86, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 lat (msec) : 100=8.33%, 250=50.00%, 500=8.33%, 750=8.33%, 1000=16.67% lat (msec) : 2000=8.33% cpu : usr=0.00%, sys=3.51%, ctx=104, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179759: Mon Aug 24 11:54:35 2026 read: IOPS=0, BW=891KiB/s (913kB/s)(5120KiB/5744msec) clat (msec): min=76, max=811, avg=342.42, stdev=291.13 lat (msec): min=76, max=811, avg=342.42, stdev=291.13 clat percentiles (msec): | 1.00th=[ 77], 5.00th=[ 77], 10.00th=[ 77], 20.00th=[ 77], | 30.00th=[ 194], 40.00th=[ 194], 50.00th=[ 205], 60.00th=[ 205], | 70.00th=[ 426], 80.00th=[ 426], 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= 2011, max= 4031, per=75.60%, avg=2695.00, stdev=1157.12, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=1, BW=1248KiB/s (1278kB/s)(7168KiB/5744msec); 0 zone resets clat (msec): min=120, max=1177, avg=520.56, stdev=402.75 lat (msec): min=120, max=1180, avg=521.37, stdev=402.99 clat percentiles (msec): | 1.00th=[ 121], 5.00th=[ 121], 10.00th=[ 121], 20.00th=[ 153], | 30.00th=[ 165], 40.00th=[ 165], 50.00th=[ 514], 60.00th=[ 693], | 70.00th=[ 693], 80.00th=[ 818], 90.00th=[ 1183], 95.00th=[ 1183], | 99.00th=[ 1183], 99.50th=[ 1183], 99.90th=[ 1183], 99.95th=[ 1183], | 99.99th=[ 1183] bw ( KiB/s): min= 1954, max= 2039, per=40.09%, avg=2001.00, stdev=37.89, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 lat (msec) : 100=8.33%, 250=41.67%, 500=8.33%, 750=16.67%, 1000=16.67% lat (msec) : 2000=8.33% cpu : usr=0.00%, sys=3.67%, ctx=109, 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=3565KiB/s (3651kB/s), 363KiB/s-1307KiB/s (372kB/s-1339kB/s), io=20.0MiB (20.0MB), run=5435-5744msec WRITE: bw=4992KiB/s (5111kB/s), 934KiB/s-1815KiB/s (956kB/s-1859kB/s), io=28.0MiB (29.4MB), run=5435-5744msec 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=179767: Mon Aug 24 11:54:51 2026 read: IOPS=0, BW=3756KiB/s (3846kB/s)(12.0MiB/3272msec) clat (msec): min=951, max=1135, avg=1020.85, stdev=100.24 lat (msec): min=951, max=1135, avg=1020.85, stdev=100.24 clat percentiles (msec): | 1.00th=[ 953], 5.00th=[ 953], 10.00th=[ 953], 20.00th=[ 953], | 30.00th=[ 953], 40.00th=[ 978], 50.00th=[ 978], 60.00th=[ 978], | 70.00th=[ 1133], 80.00th=[ 1133], 90.00th=[ 1133], 95.00th=[ 1133], | 99.00th=[ 1133], 99.50th=[ 1133], 99.90th=[ 1133], 99.95th=[ 1133], | 99.99th=[ 1133] bw ( KiB/s): min= 8094, max= 8126, per=100.00%, avg=8110.00, stdev=22.63, 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=8.87%, ctx=241, 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=179768: Mon Aug 24 11:54:51 2026 read: IOPS=0, BW=1041KiB/s (1066kB/s)(4096KiB/3936msec) clat (nsec): min=1130.4M, max=1130.4M, avg=1130423881.00, stdev= 0.00 lat (nsec): min=1130.4M, max=1130.4M, avg=1130426598.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1133], 5.00th=[ 1133], 10.00th=[ 1133], 20.00th=[ 1133], | 30.00th=[ 1133], 40.00th=[ 1133], 50.00th=[ 1133], 60.00th=[ 1133], | 70.00th=[ 1133], 80.00th=[ 1133], 90.00th=[ 1133], 95.00th=[ 1133], | 99.00th=[ 1133], 99.50th=[ 1133], 99.90th=[ 1133], 99.95th=[ 1133], | 99.99th=[ 1133] bw ( KiB/s): min= 8126, max= 8126, per=100.00%, avg=8126.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2081KiB/s (2131kB/s)(8192KiB/3936msec); 0 zone resets clat (msec): min=787, max=1874, avg=1330.83, stdev=768.36 lat (msec): min=787, max=1876, avg=1332.13, stdev=769.52 clat percentiles (msec): | 1.00th=[ 785], 5.00th=[ 785], 10.00th=[ 785], 20.00th=[ 785], | 30.00th=[ 785], 40.00th=[ 785], 50.00th=[ 785], 60.00th=[ 1871], | 70.00th=[ 1871], 80.00th=[ 1871], 90.00th=[ 1871], 95.00th=[ 1871], | 99.00th=[ 1871], 99.50th=[ 1871], 99.90th=[ 1871], 99.95th=[ 1871], | 99.99th=[ 1871] bw ( KiB/s): min= 8110, max= 8110, per=97.42%, avg=8110.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 1000=33.33%, 2000=66.67% cpu : usr=0.00%, sys=4.88%, ctx=150, 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=179769: Mon Aug 24 11:54:51 2026 write: IOPS=1, BW=4367KiB/s (4472kB/s)(12.0MiB/2814msec); 0 zone resets clat (msec): min=659, max=1316, avg=891.85, stdev=368.02 lat (msec): min=660, max=1316, avg=892.43, stdev=368.21 clat percentiles (msec): | 1.00th=[ 659], 5.00th=[ 659], 10.00th=[ 659], 20.00th=[ 659], | 30.00th=[ 659], 40.00th=[ 701], 50.00th=[ 701], 60.00th=[ 701], | 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= 8062, max= 8110, per=97.13%, avg=8086.00, stdev=33.94, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=66.67%, 2000=33.33% cpu : usr=0.00%, sys=3.77%, ctx=43, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179770: Mon Aug 24 11:54:51 2026 write: IOPS=0, BW=3657KiB/s (3745kB/s)(12.0MiB/3360msec); 0 zone resets clat (msec): min=426, max=2105, avg=1084.82, stdev=896.42 lat (msec): min=426, max=2106, avg=1087.58, stdev=895.03 clat percentiles (msec): | 1.00th=[ 426], 5.00th=[ 426], 10.00th=[ 426], 20.00th=[ 426], | 30.00th=[ 426], 40.00th=[ 726], 50.00th=[ 726], 60.00th=[ 726], | 70.00th=[ 2106], 80.00th=[ 2106], 90.00th=[ 2106], 95.00th=[ 2106], | 99.00th=[ 2106], 99.50th=[ 2106], 99.90th=[ 2106], 99.95th=[ 2106], | 99.99th=[ 2106] bw ( KiB/s): min= 7013, max= 8078, per=90.64%, avg=7545.50, stdev=753.07, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 750=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=3.19%, ctx=65, 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=4163KiB/s (4263kB/s), 1041KiB/s-3756KiB/s (1066kB/s-3846kB/s), io=16.0MiB (16.8MB), run=3272-3936msec WRITE: bw=8325KiB/s (8525kB/s), 2081KiB/s-4367KiB/s (2131kB/s-4472kB/s), io=32.0MiB (33.6MB), run=2814-3936msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179771: Mon Aug 24 11:54:52 2026 read: IOPS=0, BW=3153KiB/s (3229kB/s)(12.0MiB/3897msec) clat (msec): min=491, max=1677, avg=1251.53, stdev=659.69 lat (msec): min=491, max=1677, avg=1251.53, stdev=659.69 clat percentiles (msec): | 1.00th=[ 493], 5.00th=[ 493], 10.00th=[ 493], 20.00th=[ 493], | 30.00th=[ 493], 40.00th=[ 1586], 50.00th=[ 1586], 60.00th=[ 1586], | 70.00th=[ 1670], 80.00th=[ 1670], 90.00th=[ 1670], 95.00th=[ 1670], | 99.00th=[ 1670], 99.50th=[ 1670], 99.90th=[ 1670], 99.95th=[ 1670], | 99.99th=[ 1670] bw ( KiB/s): min= 8094, max= 8143, per=100.00%, avg=8118.50, stdev=34.65, 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=2.52%, ctx=63, 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=179772: Mon Aug 24 11:54:52 2026 read: IOPS=0, BW=957KiB/s (980kB/s)(4096KiB/4278msec) clat (nsec): min=2048.9M, max=2048.9M, avg=2048948880.00, stdev= 0.00 lat (nsec): min=2048.0M, max=2048.0M, avg=2048952066.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 2056], 5.00th=[ 2056], 10.00th=[ 2056], 20.00th=[ 2056], | 30.00th=[ 2056], 40.00th=[ 2056], 50.00th=[ 2056], 60.00th=[ 2056], | 70.00th=[ 2056], 80.00th=[ 2056], 90.00th=[ 2056], 95.00th=[ 2056], | 99.00th=[ 2056], 99.50th=[ 2056], 99.90th=[ 2056], 99.95th=[ 2056], | 99.99th=[ 2056] 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 write: IOPS=0, BW=1915KiB/s (1961kB/s)(8192KiB/4278msec); 0 zone resets clat (msec): min=700, max=1294, avg=997.35, stdev=420.10 lat (msec): min=701, max=1294, avg=998.23, stdev=419.15 clat percentiles (msec): | 1.00th=[ 701], 5.00th=[ 701], 10.00th=[ 701], 20.00th=[ 701], | 30.00th=[ 701], 40.00th=[ 701], 50.00th=[ 701], 60.00th=[ 1301], | 70.00th=[ 1301], 80.00th=[ 1301], 90.00th=[ 1301], 95.00th=[ 1301], | 99.00th=[ 1301], 99.50th=[ 1301], 99.90th=[ 1301], 99.95th=[ 1301], | 99.99th=[ 1301] bw ( KiB/s): min= 8094, max= 8094, per=100.00%, avg=8094.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=3.53%, ctx=75, 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=179773: Mon Aug 24 11:54:52 2026 write: IOPS=0, BW=2820KiB/s (2888kB/s)(12.0MiB/4357msec); 0 zone resets clat (msec): min=243, max=3416, avg=1395.09, stdev=1756.61 lat (msec): min=244, max=3417, avg=1395.56, stdev=1756.56 clat percentiles (msec): | 1.00th=[ 245], 5.00th=[ 245], 10.00th=[ 245], 20.00th=[ 245], | 30.00th=[ 245], 40.00th=[ 527], 50.00th=[ 527], 60.00th=[ 527], | 70.00th=[ 3406], 80.00th=[ 3406], 90.00th=[ 3406], 95.00th=[ 3406], | 99.00th=[ 3406], 99.50th=[ 3406], 99.90th=[ 3406], 99.95th=[ 3406], | 99.99th=[ 3406] bw ( KiB/s): min= 8078, max= 8078, per=100.00%, avg=8078.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 750=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=2.30%, ctx=58, 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=179774: Mon Aug 24 11:54:52 2026 write: IOPS=0, BW=3043KiB/s (3116kB/s)(12.0MiB/4038msec); 0 zone resets clat (msec): min=1008, max=1697, avg=1305.12, stdev=354.00 lat (msec): min=1010, max=1697, avg=1306.23, stdev=353.22 clat percentiles (msec): | 1.00th=[ 1011], 5.00th=[ 1011], 10.00th=[ 1011], 20.00th=[ 1011], | 30.00th=[ 1011], 40.00th=[ 1217], 50.00th=[ 1217], 60.00th=[ 1217], | 70.00th=[ 1703], 80.00th=[ 1703], 90.00th=[ 1703], 95.00th=[ 1703], | 99.00th=[ 1703], 99.50th=[ 1703], 99.90th=[ 1703], 99.95th=[ 1703], | 99.99th=[ 1703] bw ( KiB/s): min= 8143, max= 8175, per=100.00%, avg=8159.00, stdev=22.63, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 2000=100.00% cpu : usr=0.00%, sys=2.48%, ctx=50, 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=3830KiB/s (3922kB/s), 957KiB/s-3153KiB/s (980kB/s-3229kB/s), io=16.0MiB (16.8MB), run=3897-4278msec WRITE: bw=7521KiB/s (7701kB/s), 1915KiB/s-3043KiB/s (1961kB/s-3116kB/s), io=32.0MiB (33.6MB), run=4038-4357msec