== sanity test 398b: DIO and buffer IO race ============== 07:16:06 (1788779766) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 4.4325 s, 11.4 MB/s mix direct rw 4096 by fio with 4 jobs... mix buffer rw 4096 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=145425: Mon Sep 7 07:18:03 2026 read: IOPS=14, BW=58.9KiB/s (60.3kB/s)(5992KiB/101724msec) clat (usec): min=32, max=811239, avg=33541.70, stdev=32056.68 lat (usec): min=32, max=811241, avg=33543.38, stdev=32056.58 clat percentiles (usec): | 1.00th=[ 47], 5.00th=[ 61], 10.00th=[ 1004], 20.00th=[ 15926], | 30.00th=[ 20055], 40.00th=[ 23725], 50.00th=[ 28181], 60.00th=[ 33817], | 70.00th=[ 40109], 80.00th=[ 49021], 90.00th=[ 62653], 95.00th=[ 77071], | 99.00th=[117965], 99.50th=[130548], 99.90th=[329253], 99.95th=[809501], | 99.99th=[809501] bw ( KiB/s): min= 15, max= 126, per=24.79%, avg=58.50, stdev=22.48, samples=200 iops : min= 3, max= 31, avg=13.98, stdev= 5.65, samples=200 write: IOPS=15, BW=61.9KiB/s (63.4kB/s)(6296KiB/101724msec); 0 zone resets clat (usec): min=862, max=276017, avg=32483.52, stdev=33265.18 lat (usec): min=862, max=276019, avg=32485.56, stdev=33265.10 clat percentiles (usec): | 1.00th=[ 1074], 5.00th=[ 1254], 10.00th=[ 1795], 20.00th=[ 3326], | 30.00th=[ 6783], 40.00th=[ 15008], 50.00th=[ 23987], 60.00th=[ 33817], | 70.00th=[ 43779], 80.00th=[ 55837], 90.00th=[ 76022], 95.00th=[ 92799], | 99.00th=[149947], 99.50th=[183501], 99.90th=[242222], 99.95th=[274727], | 99.99th=[274727] bw ( KiB/s): min= 7, max= 144, per=24.92%, avg=61.56, stdev=21.95, samples=200 iops : min= 1, max= 36, avg=14.75, stdev= 5.55, samples=200 lat (usec) : 50=0.78%, 100=3.12%, 250=0.68%, 500=0.10%, 750=0.07% lat (usec) : 1000=0.16% lat (msec) : 2=6.09%, 4=5.50%, 10=7.00%, 20=14.52%, 50=40.20% lat (msec) : 100=19.08%, 250=2.60%, 500=0.07%, 1000=0.03% cpu : usr=0.08%, sys=6.33%, ctx=6830, 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=145426: Mon Sep 7 07:18:03 2026 read: IOPS=15, BW=60.2KiB/s (61.6kB/s)(5940KiB/98752msec) clat (usec): min=29, max=352726, avg=31680.93, stdev=23253.25 lat (usec): min=29, max=352726, avg=31685.12, stdev=23252.43 clat percentiles (usec): | 1.00th=[ 49], 5.00th=[ 61], 10.00th=[ 253], 20.00th=[ 15270], | 30.00th=[ 19530], 40.00th=[ 22938], 50.00th=[ 27132], 60.00th=[ 32637], | 70.00th=[ 39060], 80.00th=[ 47973], 90.00th=[ 60556], 95.00th=[ 71828], | 99.00th=[ 98042], 99.50th=[106431], 99.90th=[160433], 99.95th=[354419], | 99.99th=[354419] bw ( KiB/s): min= 6, max= 119, per=25.30%, avg=59.71, stdev=21.08, samples=195 iops : min= 1, max= 29, avg=14.28, stdev= 5.29, samples=195 write: IOPS=16, BW=64.3KiB/s (65.8kB/s)(6348KiB/98752msec); 0 zone resets clat (usec): min=904, max=810481, avg=32370.34, stdev=38066.32 lat (usec): min=905, max=810482, avg=32374.11, stdev=38064.64 clat percentiles (usec): | 1.00th=[ 1074], 5.00th=[ 1352], 10.00th=[ 1926], 20.00th=[ 3884], | 30.00th=[ 7504], 40.00th=[ 15139], 50.00th=[ 23987], 60.00th=[ 31851], | 70.00th=[ 40109], 80.00th=[ 53740], 90.00th=[ 72877], 95.00th=[ 96994], | 99.00th=[145753], 99.50th=[173016], 99.90th=[244319], 99.95th=[809501], | 99.99th=[809501] bw ( KiB/s): min= 7, max= 135, per=25.89%, avg=63.96, stdev=24.38, samples=194 iops : min= 1, max= 33, avg=15.36, stdev= 6.16, samples=194 lat (usec) : 50=0.55%, 100=3.61%, 250=0.62%, 500=0.26%, 750=0.03% lat (usec) : 1000=0.13% lat (msec) : 2=5.34%, 4=5.40%, 10=7.68%, 20=15.46%, 50=40.56% lat (msec) : 100=17.61%, 250=2.67%, 500=0.03%, 1000=0.03% cpu : usr=0.09%, sys=6.47%, ctx=6680, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145427: Mon Sep 7 07:18:03 2026 read: IOPS=14, BW=59.8KiB/s (61.2kB/s)(6028KiB/100808msec) clat (usec): min=28, max=247439, avg=31558.19, stdev=23771.04 lat (usec): min=28, max=247441, avg=31560.00, stdev=23771.03 clat percentiles (usec): | 1.00th=[ 46], 5.00th=[ 60], 10.00th=[ 111], 20.00th=[ 14877], | 30.00th=[ 19268], 40.00th=[ 22938], 50.00th=[ 27395], 60.00th=[ 32637], | 70.00th=[ 37487], 80.00th=[ 47449], 90.00th=[ 60031], 95.00th=[ 73925], | 99.00th=[113771], 99.50th=[133694], 99.90th=[175113], 99.95th=[246416], | 99.99th=[246416] bw ( KiB/s): min= 7, max= 127, per=25.55%, avg=60.30, stdev=22.95, samples=196 iops : min= 1, max= 31, avg=14.43, stdev= 5.78, samples=196 write: IOPS=15, BW=62.1KiB/s (63.6kB/s)(6260KiB/100808msec); 0 zone resets clat (usec): min=945, max=927253, avg=33799.47, stdev=40236.35 lat (usec): min=946, max=927255, avg=33806.69, stdev=40235.87 clat percentiles (usec): | 1.00th=[ 1090], 5.00th=[ 1352], 10.00th=[ 1909], 20.00th=[ 3621], | 30.00th=[ 7701], 40.00th=[ 16450], 50.00th=[ 24773], 60.00th=[ 34866], | 70.00th=[ 44303], 80.00th=[ 57410], 90.00th=[ 74974], 95.00th=[ 95945], | 99.00th=[145753], 99.50th=[175113], 99.90th=[312476], 99.95th=[926942], | 99.99th=[926942] bw ( KiB/s): min= 7, max= 151, per=25.22%, avg=62.29, stdev=23.32, samples=197 iops : min= 1, max= 37, avg=14.93, stdev= 5.85, samples=197 lat (usec) : 50=0.68%, 100=3.94%, 250=0.65%, 500=0.10%, 750=0.07% lat (usec) : 1000=0.20% lat (msec) : 2=5.37%, 4=5.63%, 10=6.32%, 20=15.10%, 50=40.89% lat (msec) : 100=18.03%, 250=2.93%, 500=0.07%, 1000=0.03% cpu : usr=0.09%, sys=6.42%, ctx=6726, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145428: Mon Sep 7 07:18:03 2026 read: IOPS=15, BW=60.0KiB/s (61.5kB/s)(6052KiB/100812msec) clat (usec): min=28, max=344047, avg=31979.29, stdev=24521.54 lat (usec): min=28, max=344048, avg=31983.22, stdev=24522.05 clat percentiles (usec): | 1.00th=[ 47], 5.00th=[ 59], 10.00th=[ 99], 20.00th=[ 15008], | 30.00th=[ 19530], 40.00th=[ 23462], 50.00th=[ 27657], 60.00th=[ 33424], | 70.00th=[ 39584], 80.00th=[ 47973], 90.00th=[ 61080], 95.00th=[ 73925], | 99.00th=[110625], 99.50th=[130548], 99.90th=[202376], 99.95th=[346031], | 99.99th=[346031] bw ( KiB/s): min= 15, max= 119, per=25.50%, avg=60.19, stdev=22.49, samples=197 iops : min= 3, max= 29, avg=14.40, stdev= 5.66, samples=197 write: IOPS=15, BW=61.9KiB/s (63.3kB/s)(6236KiB/100812msec); 0 zone resets clat (usec): min=959, max=796509, avg=33423.67, stdev=38975.70 lat (usec): min=959, max=796511, avg=33426.23, stdev=38975.32 clat percentiles (usec): | 1.00th=[ 1074], 5.00th=[ 1254], 10.00th=[ 1811], 20.00th=[ 3851], | 30.00th=[ 6915], 40.00th=[ 15139], 50.00th=[ 24249], 60.00th=[ 32637], | 70.00th=[ 44303], 80.00th=[ 57410], 90.00th=[ 78119], 95.00th=[ 94897], | 99.00th=[149947], 99.50th=[183501], 99.90th=[304088], 99.95th=[792724], | 99.99th=[792724] bw ( KiB/s): min= 7, max= 159, per=24.82%, avg=61.32, stdev=24.17, samples=199 iops : min= 1, max= 39, avg=14.69, stdev= 6.06, samples=199 lat (usec) : 50=0.65%, 100=4.30%, 250=0.46%, 500=0.13%, 750=0.16% lat (usec) : 1000=0.10% lat (msec) : 2=5.76%, 4=4.98%, 10=7.39%, 20=14.32%, 50=40.53% lat (msec) : 100=18.39%, 250=2.73%, 500=0.07%, 1000=0.03% cpu : usr=0.09%, sys=6.29%, ctx=6705, majf=0, minf=18 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=236KiB/s (242kB/s), 58.9KiB/s-60.2KiB/s (60.3kB/s-61.6kB/s), io=23.4MiB (24.6MB), run=98752-101724msec WRITE: bw=247KiB/s (253kB/s), 61.9KiB/s-64.3KiB/s (63.3kB/s-65.8kB/s), io=24.6MiB (25.7MB), run=98752-101724msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145420: Mon Sep 7 07:20:20 2026 read: IOPS=6, BW=25.0KiB/s (25.6kB/s)(5992KiB/239290msec) clat (msec): min=5, max=829, avg=29.44, stdev=33.05 lat (msec): min=5, max=829, avg=29.44, stdev=33.05 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 18], 50.00th=[ 21], 60.00th=[ 24], | 70.00th=[ 29], 80.00th=[ 38], 90.00th=[ 61], 95.00th=[ 86], | 99.00th=[ 138], 99.50th=[ 163], 99.90th=[ 213], 99.95th=[ 827], | 99.99th=[ 827] bw ( KiB/s): min= 7, max= 80, per=26.73%, avg=26.73, stdev=16.80, samples=434 iops : min= 1, max= 20, avg= 6.09, stdev= 4.24, samples=434 write: IOPS=6, BW=26.3KiB/s (26.9kB/s)(6296KiB/239290msec); 0 zone resets clat (msec): min=38, max=447, avg=123.76, stdev=49.94 lat (msec): min=38, max=447, avg=123.76, stdev=49.94 clat percentiles (msec): | 1.00th=[ 52], 5.00th=[ 64], 10.00th=[ 72], 20.00th=[ 84], | 30.00th=[ 93], 40.00th=[ 103], 50.00th=[ 115], 60.00th=[ 127], | 70.00th=[ 140], 80.00th=[ 159], 90.00th=[ 186], 95.00th=[ 215], | 99.00th=[ 296], 99.50th=[ 334], 99.90th=[ 443], 99.95th=[ 447], | 99.99th=[ 447] bw ( KiB/s): min= 7, max= 55, per=24.88%, avg=25.87, stdev= 9.51, samples=470 iops : min= 1, max= 13, avg= 5.87, stdev= 2.43, samples=470 lat (msec) : 10=4.46%, 20=18.88%, 50=19.76%, 100=23.34%, 250=32.58% lat (msec) : 500=0.94%, 1000=0.03% cpu : usr=0.04%, sys=1.24%, ctx=5209, 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=145421: Mon Sep 7 07:20:20 2026 read: IOPS=6, BW=24.9KiB/s (25.5kB/s)(5940KiB/238821msec) clat (msec): min=6, max=809, avg=29.52, stdev=32.75 lat (msec): min=6, max=809, avg=29.52, stdev=32.74 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 18], 50.00th=[ 21], 60.00th=[ 24], | 70.00th=[ 29], 80.00th=[ 38], 90.00th=[ 59], 95.00th=[ 81], | 99.00th=[ 150], 99.50th=[ 169], 99.90th=[ 224], 99.95th=[ 810], | 99.99th=[ 810] bw ( KiB/s): min= 7, max= 96, per=27.36%, avg=27.36, stdev=16.59, samples=421 iops : min= 1, max= 24, avg= 6.25, stdev= 4.16, samples=421 write: IOPS=6, BW=26.6KiB/s (27.2kB/s)(6348KiB/238821msec); 0 zone resets clat (msec): min=39, max=419, avg=122.63, stdev=50.17 lat (msec): min=39, max=419, avg=122.63, stdev=50.17 clat percentiles (msec): | 1.00th=[ 52], 5.00th=[ 63], 10.00th=[ 71], 20.00th=[ 83], | 30.00th=[ 92], 40.00th=[ 102], 50.00th=[ 113], 60.00th=[ 126], | 70.00th=[ 138], 80.00th=[ 157], 90.00th=[ 186], 95.00th=[ 218], | 99.00th=[ 305], 99.50th=[ 338], 99.90th=[ 409], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 7, max= 48, per=25.05%, avg=26.05, stdev= 9.94, samples=471 iops : min= 1, max= 12, avg= 5.91, stdev= 2.54, samples=471 lat (msec) : 10=3.58%, 20=19.66%, 50=19.01%, 100=24.54%, 250=32.06% lat (msec) : 500=1.11%, 1000=0.03% cpu : usr=0.04%, sys=1.23%, ctx=5260, 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=145422: Mon Sep 7 07:20:20 2026 read: IOPS=6, BW=25.2KiB/s (25.8kB/s)(6028KiB/239478msec) clat (msec): min=5, max=270, avg=29.49, stdev=26.16 lat (msec): min=5, max=270, avg=29.49, stdev=26.16 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 18], 50.00th=[ 21], 60.00th=[ 25], | 70.00th=[ 30], 80.00th=[ 41], 90.00th=[ 59], 95.00th=[ 81], | 99.00th=[ 134], 99.50th=[ 165], 99.90th=[ 211], 99.95th=[ 271], | 99.99th=[ 271] bw ( KiB/s): min= 7, max= 95, per=26.75%, avg=26.75, stdev=16.96, samples=436 iops : min= 1, max= 23, avg= 6.10, stdev= 4.28, samples=436 write: IOPS=6, BW=26.1KiB/s (26.8kB/s)(6260KiB/239478msec); 0 zone resets clat (msec): min=38, max=914, avg=124.39, stdev=53.75 lat (msec): min=38, max=914, avg=124.40, stdev=53.74 clat percentiles (msec): | 1.00th=[ 51], 5.00th=[ 63], 10.00th=[ 72], 20.00th=[ 85], | 30.00th=[ 94], 40.00th=[ 104], 50.00th=[ 115], 60.00th=[ 127], | 70.00th=[ 140], 80.00th=[ 157], 90.00th=[ 188], 95.00th=[ 215], | 99.00th=[ 292], 99.50th=[ 363], 99.90th=[ 456], 99.95th=[ 911], | 99.99th=[ 911] bw ( KiB/s): min= 7, max= 55, per=24.64%, avg=25.62, stdev= 9.50, samples=472 iops : min= 1, max= 13, avg= 5.81, stdev= 2.43, samples=472 lat (msec) : 10=3.78%, 20=19.89%, 50=18.65%, 100=23.89%, 250=32.75% lat (msec) : 500=1.01%, 1000=0.03% cpu : usr=0.04%, sys=1.24%, ctx=5175, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145423: Mon Sep 7 07:20:20 2026 read: IOPS=6, BW=25.6KiB/s (26.2kB/s)(6052KiB/236490msec) clat (msec): min=5, max=350, avg=29.28, stdev=28.04 lat (msec): min=5, max=350, avg=29.28, stdev=28.04 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 18], 50.00th=[ 20], 60.00th=[ 24], | 70.00th=[ 29], 80.00th=[ 37], 90.00th=[ 61], 95.00th=[ 87], | 99.00th=[ 136], 99.50th=[ 161], 99.90th=[ 275], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 7, max= 118, per=27.50%, avg=27.50, stdev=18.12, samples=427 iops : min= 1, max= 29, avg= 6.27, stdev= 4.56, samples=427 write: IOPS=6, BW=26.4KiB/s (27.0kB/s)(6236KiB/236490msec); 0 zone resets clat (msec): min=39, max=869, avg=123.03, stdev=52.21 lat (msec): min=39, max=869, avg=123.04, stdev=52.21 clat percentiles (msec): | 1.00th=[ 51], 5.00th=[ 63], 10.00th=[ 71], 20.00th=[ 84], | 30.00th=[ 95], 40.00th=[ 105], 50.00th=[ 114], 60.00th=[ 125], | 70.00th=[ 138], 80.00th=[ 155], 90.00th=[ 186], 95.00th=[ 215], | 99.00th=[ 288], 99.50th=[ 330], 99.90th=[ 451], 99.95th=[ 869], | 99.99th=[ 869] bw ( KiB/s): min= 7, max= 48, per=24.89%, avg=25.88, stdev= 9.56, samples=467 iops : min= 1, max= 12, avg= 5.87, stdev= 2.46, samples=467 lat (msec) : 10=4.04%, 20=21.06%, 50=18.00%, 100=22.14%, 250=33.59% lat (msec) : 500=1.14%, 1000=0.03% cpu : usr=0.05%, sys=1.23%, ctx=5168, 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=100KiB/s (103kB/s), 24.9KiB/s-25.6KiB/s (25.5kB/s-26.2kB/s), io=23.4MiB (24.6MB), run=236490-239478msec WRITE: bw=105KiB/s (107kB/s), 26.1KiB/s-26.6KiB/s (26.8kB/s-27.2kB/s), io=24.6MiB (25.7MB), run=236490-239478msec 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=145477: Mon Sep 7 07:20:59 2026 read: IOPS=13, BW=213KiB/s (218kB/s)(5920KiB/27843msec) clat (usec): min=34, max=147058, avg=36323.89, stdev=27767.38 lat (usec): min=34, max=147059, avg=36329.94, stdev=27768.24 clat percentiles (usec): | 1.00th=[ 43], 5.00th=[ 58], 10.00th=[ 66], 20.00th=[ 159], | 30.00th=[ 21627], 40.00th=[ 28181], 50.00th=[ 33817], 60.00th=[ 40633], | 70.00th=[ 48497], 80.00th=[ 59507], 90.00th=[ 71828], 95.00th=[ 85459], | 99.00th=[112722], 99.50th=[126354], 99.90th=[147850], 99.95th=[147850], | 99.99th=[147850] bw ( KiB/s): min= 32, max= 380, per=24.31%, avg=209.07, stdev=81.97, samples=54 iops : min= 2, max= 23, avg=12.28, stdev= 5.16, samples=54 write: IOPS=14, BW=229KiB/s (234kB/s)(6368KiB/27843msec); 0 zone resets clat (usec): min=1371, max=407728, avg=36060.05, stdev=46506.58 lat (usec): min=1372, max=407730, avg=36092.03, stdev=46490.40 clat percentiles (usec): | 1.00th=[ 1532], 5.00th=[ 2089], 10.00th=[ 2835], 20.00th=[ 5080], | 30.00th=[ 6980], 40.00th=[ 12780], 50.00th=[ 21103], 60.00th=[ 30016], | 70.00th=[ 45351], 80.00th=[ 59507], 90.00th=[ 89654], 95.00th=[106431], | 99.00th=[263193], 99.50th=[371196], 99.90th=[408945], 99.95th=[408945], | 99.99th=[408945] bw ( KiB/s): min= 32, max= 480, per=25.21%, avg=228.19, stdev=96.81, samples=54 iops : min= 2, max= 30, avg=13.48, stdev= 6.07, samples=54 lat (usec) : 50=1.04%, 100=8.46%, 250=0.26%, 500=0.26%, 750=0.13% lat (msec) : 2=2.60%, 4=6.12%, 10=10.42%, 20=8.85%, 50=34.11% lat (msec) : 100=23.18%, 250=3.91%, 500=0.65% cpu : usr=0.09%, sys=5.47%, ctx=1560, 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=145478: Mon Sep 7 07:20:59 2026 read: IOPS=13, BW=212KiB/s (217kB/s)(5744KiB/27074msec) clat (usec): min=37, max=272352, avg=39197.56, stdev=29528.84 lat (usec): min=37, max=272353, avg=39204.89, stdev=29531.40 clat percentiles (usec): | 1.00th=[ 41], 5.00th=[ 59], 10.00th=[ 70], 20.00th=[ 17695], | 30.00th=[ 25560], 40.00th=[ 31851], 50.00th=[ 38011], 60.00th=[ 43254], | 70.00th=[ 50070], 80.00th=[ 57934], 90.00th=[ 74974], 95.00th=[ 87557], | 99.00th=[113771], 99.50th=[158335], 99.90th=[270533], 99.95th=[270533], | 99.99th=[270533] bw ( KiB/s): min= 49, max= 440, per=24.74%, avg=212.75, stdev=80.50, samples=53 iops : min= 3, max= 27, avg=12.53, stdev= 5.07, samples=53 write: IOPS=15, BW=242KiB/s (248kB/s)(6544KiB/27074msec); 0 zone resets clat (usec): min=1383, max=228895, avg=31641.98, stdev=34660.07 lat (usec): min=1384, max=229017, avg=31646.20, stdev=34662.00 clat percentiles (usec): | 1.00th=[ 1483], 5.00th=[ 1729], 10.00th=[ 2638], 20.00th=[ 4424], | 30.00th=[ 6783], 40.00th=[ 10028], 50.00th=[ 17433], 60.00th=[ 27657], | 70.00th=[ 41681], 80.00th=[ 58459], 90.00th=[ 81265], 95.00th=[ 94897], | 99.00th=[149947], 99.50th=[154141], 99.90th=[229639], 99.95th=[229639], | 99.99th=[229639] bw ( KiB/s): min= 63, max= 479, per=26.78%, avg=242.38, stdev=87.39, samples=53 iops : min= 3, max= 29, avg=14.38, stdev= 5.45, samples=53 lat (usec) : 50=0.91%, 100=5.99%, 250=0.39%, 500=0.39%, 1000=0.13% lat (msec) : 2=4.17%, 4=5.34%, 10=12.50%, 20=8.59%, 50=35.42% lat (msec) : 100=22.40%, 250=3.65%, 500=0.13% cpu : usr=0.10%, sys=5.41%, ctx=1465, 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=145479: Mon Sep 7 07:20:59 2026 read: IOPS=14, BW=238KiB/s (243kB/s)(6256KiB/26325msec) clat (usec): min=47, max=121592, avg=35095.30, stdev=25373.62 lat (usec): min=49, max=121593, avg=35097.65, stdev=25374.48 clat percentiles (usec): | 1.00th=[ 55], 5.00th=[ 62], 10.00th=[ 71], 20.00th=[ 3752], | 30.00th=[ 23200], 40.00th=[ 28967], 50.00th=[ 33817], 60.00th=[ 39584], | 70.00th=[ 46400], 80.00th=[ 54264], 90.00th=[ 69731], 95.00th=[ 81265], | 99.00th=[109577], 99.50th=[120062], 99.90th=[121111], 99.95th=[121111], | 99.99th=[121111] bw ( KiB/s): min= 62, max= 535, per=27.73%, avg=238.45, stdev=94.79, samples=51 iops : min= 3, max= 33, avg=14.14, stdev= 6.02, samples=51 write: IOPS=14, BW=229KiB/s (235kB/s)(6032KiB/26325msec); 0 zone resets clat (usec): min=1429, max=211374, avg=33330.11, stdev=35458.54 lat (usec): min=1431, max=211378, avg=33339.46, stdev=35465.81 clat percentiles (usec): | 1.00th=[ 1549], 5.00th=[ 1844], 10.00th=[ 2900], 20.00th=[ 5604], | 30.00th=[ 8094], 40.00th=[ 11469], 50.00th=[ 18220], 60.00th=[ 31851], | 70.00th=[ 45351], 80.00th=[ 61080], 90.00th=[ 85459], 95.00th=[ 95945], | 99.00th=[173016], 99.50th=[204473], 99.90th=[210764], 99.95th=[210764], | 99.99th=[210764] bw ( KiB/s): min= 31, max= 440, per=25.01%, avg=226.31, stdev=87.44, samples=51 iops : min= 1, max= 27, avg=13.37, stdev= 5.59, samples=51 lat (usec) : 50=0.13%, 100=7.81%, 250=1.69%, 500=0.13%, 750=0.13% lat (usec) : 1000=0.26% lat (msec) : 2=2.60%, 4=4.04%, 10=11.59%, 20=10.29%, 50=36.20% lat (msec) : 100=22.66%, 250=2.47% cpu : usr=0.08%, sys=5.70%, ctx=1490, 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=145480: Mon Sep 7 07:20:59 2026 read: IOPS=13, BW=218KiB/s (223kB/s)(6032KiB/27701msec) clat (usec): min=37, max=214806, avg=36697.31, stdev=28718.47 lat (usec): min=38, max=214808, avg=36699.04, stdev=28718.01 clat percentiles (usec): | 1.00th=[ 45], 5.00th=[ 57], 10.00th=[ 64], 20.00th=[ 482], | 30.00th=[ 21890], 40.00th=[ 29492], 50.00th=[ 36439], 60.00th=[ 41681], | 70.00th=[ 49546], 80.00th=[ 57410], 90.00th=[ 69731], 95.00th=[ 81265], | 99.00th=[112722], 99.50th=[170918], 99.90th=[214959], 99.95th=[214959], | 99.99th=[214959] bw ( KiB/s): min= 32, max= 446, per=25.06%, avg=215.56, stdev=86.75, samples=54 iops : min= 2, max= 27, avg=12.70, stdev= 5.38, samples=54 write: IOPS=14, BW=226KiB/s (231kB/s)(6256KiB/27701msec); 0 zone resets clat (usec): min=1272, max=417947, avg=35387.68, stdev=44738.27 lat (usec): min=1274, max=417949, avg=35395.30, stdev=44746.92 clat percentiles (usec): | 1.00th=[ 1500], 5.00th=[ 1811], 10.00th=[ 2769], 20.00th=[ 4686], | 30.00th=[ 6783], 40.00th=[ 10552], 50.00th=[ 19530], 60.00th=[ 30016], | 70.00th=[ 44303], 80.00th=[ 55837], 90.00th=[ 87557], 95.00th=[114820], | 99.00th=[210764], 99.50th=[246416], 99.90th=[417334], 99.95th=[417334], | 99.99th=[417334] bw ( KiB/s): min= 31, max= 448, per=24.88%, avg=225.13, stdev=91.33, samples=54 iops : min= 1, max= 28, avg=13.30, stdev= 5.74, samples=54 lat (usec) : 50=1.30%, 100=7.42%, 250=1.04%, 500=0.13%, 750=0.52% lat (msec) : 2=3.65%, 4=5.08%, 10=11.46%, 20=7.81%, 50=34.51% lat (msec) : 100=22.27%, 250=4.69%, 500=0.13% cpu : usr=0.09%, sys=5.57%, ctx=1528, 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=860KiB/s (881kB/s), 212KiB/s-238KiB/s (217kB/s-243kB/s), io=23.4MiB (24.5MB), run=26325-27843msec WRITE: bw=905KiB/s (927kB/s), 226KiB/s-242KiB/s (231kB/s-248kB/s), io=24.6MiB (25.8MB), run=26325-27843msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145472: Mon Sep 7 07:21:37 2026 read: IOPS=5, BW=91.1KiB/s (93.3kB/s)(5920KiB/64971msec) clat (msec): min=5, max=362, avg=37.47, stdev=34.04 lat (msec): min=5, max=362, avg=37.47, stdev=34.04 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 20], 40.00th=[ 24], 50.00th=[ 30], 60.00th=[ 34], | 70.00th=[ 41], 80.00th=[ 51], 90.00th=[ 68], 95.00th=[ 86], | 99.00th=[ 171], 99.50th=[ 226], 99.90th=[ 363], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 30, max= 319, per=27.74%, avg=100.43, stdev=61.41, samples=115 iops : min= 1, max= 19, avg= 5.48, stdev= 3.87, samples=115 write: IOPS=6, BW=98.0KiB/s (100kB/s)(6368KiB/64971msec); 0 zone resets clat (msec): min=41, max=415, avg=128.00, stdev=59.93 lat (msec): min=41, max=415, avg=128.01, stdev=59.93 clat percentiles (msec): | 1.00th=[ 51], 5.00th=[ 62], 10.00th=[ 70], 20.00th=[ 79], | 30.00th=[ 92], 40.00th=[ 102], 50.00th=[ 115], 60.00th=[ 127], | 70.00th=[ 142], 80.00th=[ 165], 90.00th=[ 209], 95.00th=[ 234], | 99.00th=[ 363], 99.50th=[ 409], 99.90th=[ 418], 99.95th=[ 418], | 99.99th=[ 418] bw ( KiB/s): min= 30, max= 190, per=26.23%, avg=99.94, stdev=40.74, samples=125 iops : min= 1, max= 11, avg= 5.46, stdev= 2.60, samples=125 lat (msec) : 10=2.08%, 20=13.02%, 50=23.57%, 100=27.21%, 250=31.77% lat (msec) : 500=2.34% cpu : usr=0.03%, sys=1.22%, ctx=1360, 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=145473: Mon Sep 7 07:21:37 2026 read: IOPS=5, BW=86.9KiB/s (88.0kB/s)(5744KiB/66112msec) clat (msec): min=5, max=358, avg=37.99, stdev=34.97 lat (msec): min=5, max=358, avg=37.99, stdev=34.97 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 25], 50.00th=[ 28], 60.00th=[ 33], | 70.00th=[ 39], 80.00th=[ 52], 90.00th=[ 75], 95.00th=[ 104], | 99.00th=[ 167], 99.50th=[ 239], 99.90th=[ 359], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 27, max= 288, per=27.77%, avg=100.54, stdev=62.33, samples=113 iops : min= 1, max= 18, avg= 5.51, stdev= 4.00, samples=113 write: IOPS=6, BW=98.0KiB/s (101kB/s)(6544KiB/66112msec); 0 zone resets clat (msec): min=42, max=457, avg=127.91, stdev=62.20 lat (msec): min=42, max=457, avg=127.91, stdev=62.20 clat percentiles (msec): | 1.00th=[ 52], 5.00th=[ 62], 10.00th=[ 70], 20.00th=[ 80], | 30.00th=[ 91], 40.00th=[ 101], 50.00th=[ 112], 60.00th=[ 126], | 70.00th=[ 144], 80.00th=[ 167], 90.00th=[ 207], 95.00th=[ 234], | 99.00th=[ 368], 99.50th=[ 401], 99.90th=[ 460], 99.95th=[ 460], | 99.99th=[ 460] bw ( KiB/s): min= 30, max= 256, per=26.25%, avg=100.02, stdev=44.47, samples=129 iops : min= 1, max= 16, avg= 5.47, stdev= 2.82, samples=129 lat (msec) : 10=1.69%, 20=12.37%, 50=23.31%, 100=27.47%, 250=32.81% lat (msec) : 500=2.34% cpu : usr=0.04%, sys=1.25%, ctx=1384, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145474: Mon Sep 7 07:21:37 2026 read: IOPS=6, BW=99.3KiB/s (102kB/s)(6256KiB/63025msec) clat (msec): min=6, max=251, avg=37.14, stdev=35.92 lat (msec): min=6, max=251, avg=37.14, stdev=35.92 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 26], 60.00th=[ 31], | 70.00th=[ 38], 80.00th=[ 48], 90.00th=[ 74], 95.00th=[ 109], | 99.00th=[ 205], 99.50th=[ 247], 99.90th=[ 251], 99.95th=[ 251], | 99.99th=[ 251] bw ( KiB/s): min= 27, max= 320, per=29.89%, avg=108.22, stdev=77.10, samples=114 iops : min= 1, max= 20, avg= 5.96, stdev= 4.87, samples=114 write: IOPS=5, BW=95.7KiB/s (98.0kB/s)(6032KiB/63025msec); 0 zone resets clat (msec): min=51, max=396, avg=128.28, stdev=59.73 lat (msec): min=51, max=396, avg=128.28, stdev=59.73 clat percentiles (msec): | 1.00th=[ 55], 5.00th=[ 63], 10.00th=[ 71], 20.00th=[ 85], | 30.00th=[ 92], 40.00th=[ 102], 50.00th=[ 110], 60.00th=[ 124], | 70.00th=[ 142], 80.00th=[ 169], 90.00th=[ 209], 95.00th=[ 247], | 99.00th=[ 363], 99.50th=[ 384], 99.90th=[ 397], 99.95th=[ 397], | 99.99th=[ 397] bw ( KiB/s): min= 31, max= 191, per=25.14%, avg=95.79, stdev=42.50, samples=123 iops : min= 1, max= 11, avg= 5.20, stdev= 2.70, samples=123 lat (msec) : 10=1.56%, 20=17.84%, 50=21.74%, 100=25.00%, 250=31.38% lat (msec) : 500=2.47% cpu : usr=0.05%, sys=1.26%, ctx=1402, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145475: Mon Sep 7 07:21:37 2026 read: IOPS=5, BW=92.2KiB/s (94.5kB/s)(6032KiB/65391msec) clat (msec): min=7, max=291, avg=36.50, stdev=31.13 lat (msec): min=7, max=291, avg=36.50, stdev=31.13 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 20], 40.00th=[ 24], 50.00th=[ 28], 60.00th=[ 34], | 70.00th=[ 41], 80.00th=[ 51], 90.00th=[ 71], 95.00th=[ 84], | 99.00th=[ 184], 99.50th=[ 222], 99.90th=[ 292], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 30, max= 319, per=27.72%, avg=100.36, stdev=65.98, samples=117 iops : min= 1, max= 19, avg= 5.48, stdev= 4.18, samples=117 write: IOPS=5, BW=95.7KiB/s (97.0kB/s)(6256KiB/65391msec); 0 zone resets clat (msec): min=49, max=410, avg=131.86, stdev=61.55 lat (msec): min=49, max=410, avg=131.87, stdev=61.55 clat percentiles (msec): | 1.00th=[ 51], 5.00th=[ 65], 10.00th=[ 73], 20.00th=[ 85], | 30.00th=[ 94], 40.00th=[ 106], 50.00th=[ 116], 60.00th=[ 128], | 70.00th=[ 148], 80.00th=[ 174], 90.00th=[ 213], 95.00th=[ 239], | 99.00th=[ 388], 99.50th=[ 405], 99.90th=[ 409], 99.95th=[ 409], | 99.99th=[ 409] bw ( KiB/s): min= 31, max= 192, per=24.87%, avg=94.75, stdev=40.35, samples=129 iops : min= 1, max= 12, avg= 5.12, stdev= 2.58, samples=129 lat (msec) : 10=1.43%, 20=13.93%, 50=23.96%, 100=25.52%, 250=32.94% lat (msec) : 500=2.21% cpu : usr=0.02%, sys=1.19%, ctx=1351, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=362KiB/s (371kB/s), 86.9KiB/s-99.3KiB/s (88.0kB/s-102kB/s), io=23.4MiB (24.5MB), run=63025-66112msec WRITE: bw=381KiB/s (390kB/s), 95.7KiB/s-98.0KiB/s (97.0kB/s-101kB/s), io=24.6MiB (25.8MB), run=63025-66112msec 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=145510: Mon Sep 7 07:21:51 2026 read: IOPS=2, BW=2199KiB/s (2252kB/s)(7168KiB/3259msec) clat (msec): min=89, max=359, avg=184.91, stdev=105.26 lat (msec): min=89, max=360, avg=184.91, stdev=105.26 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 90], 10.00th=[ 90], 20.00th=[ 104], | 30.00th=[ 117], 40.00th=[ 117], 50.00th=[ 120], 60.00th=[ 222], | 70.00th=[ 222], 80.00th=[ 284], 90.00th=[ 359], 95.00th=[ 359], | 99.00th=[ 359], 99.50th=[ 359], 99.90th=[ 359], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 1910, max= 6107, per=95.86%, avg=3855.33, stdev=2115.20, samples=3 iops : min= 1, max= 5, avg= 3.00, stdev= 2.00, samples=3 write: IOPS=1, BW=1571KiB/s (1609kB/s)(5120KiB/3259msec); 0 zone resets clat (msec): min=319, max=473, avg=390.42, stdev=63.20 lat (msec): min=320, max=474, avg=390.53, stdev=63.21 clat percentiles (msec): | 1.00th=[ 321], 5.00th=[ 321], 10.00th=[ 321], 20.00th=[ 321], | 30.00th=[ 338], 40.00th=[ 338], 50.00th=[ 393], 60.00th=[ 393], | 70.00th=[ 430], 80.00th=[ 430], 90.00th=[ 472], 95.00th=[ 472], | 99.00th=[ 472], 99.50th=[ 472], 99.90th=[ 472], 99.95th=[ 472], | 99.99th=[ 472] bw ( KiB/s): min= 1771, max= 2043, per=33.82%, avg=1904.20, stdev=130.49, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 100=8.33%, 250=33.33%, 500=58.33% cpu : usr=0.00%, sys=7.31%, ctx=95, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=145511: Mon Sep 7 07:21:51 2026 read: IOPS=0, BW=402KiB/s (412kB/s)(2048KiB/5091msec) clat (msec): min=106, max=156, avg=131.67, stdev=35.06 lat (msec): min=106, max=156, avg=131.67, stdev=35.06 clat percentiles (msec): | 1.00th=[ 107], 5.00th=[ 107], 10.00th=[ 107], 20.00th=[ 107], | 30.00th=[ 107], 40.00th=[ 107], 50.00th=[ 107], 60.00th=[ 157], | 70.00th=[ 157], 80.00th=[ 157], 90.00th=[ 157], 95.00th=[ 157], | 99.00th=[ 157], 99.50th=[ 157], 99.90th=[ 157], 99.95th=[ 157], | 99.99th=[ 157] bw ( KiB/s): min= 1910, max= 1996, per=48.56%, avg=1953.00, stdev=60.81, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=2011KiB/s (2060kB/s)(10.0MiB/5091msec); 0 zone resets clat (msec): min=174, max=891, avg=473.48, stdev=232.85 lat (msec): min=175, max=891, avg=473.80, stdev=232.69 clat percentiles (msec): | 1.00th=[ 176], 5.00th=[ 176], 10.00th=[ 176], 20.00th=[ 296], | 30.00th=[ 305], 40.00th=[ 338], 50.00th=[ 368], 60.00th=[ 368], | 70.00th=[ 575], 80.00th=[ 701], 90.00th=[ 718], 95.00th=[ 894], | 99.00th=[ 894], 99.50th=[ 894], 99.90th=[ 894], 99.95th=[ 894], | 99.99th=[ 894] bw ( KiB/s): min= 1771, max= 2031, per=34.47%, avg=1940.88, stdev=110.47, samples=8 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=8 lat (msec) : 250=25.00%, 500=41.67%, 750=25.00%, 1000=8.33% cpu : usr=0.02%, sys=5.13%, ctx=92, 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=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=145512: Mon Sep 7 07:21:51 2026 read: IOPS=1, BW=1356KiB/s (1389kB/s)(6144KiB/4530msec) clat (msec): min=108, max=534, avg=292.96, stdev=156.24 lat (msec): min=108, max=534, avg=292.96, stdev=156.24 clat percentiles (msec): | 1.00th=[ 109], 5.00th=[ 109], 10.00th=[ 109], 20.00th=[ 157], | 30.00th=[ 157], 40.00th=[ 243], 50.00th=[ 243], 60.00th=[ 347], | 70.00th=[ 368], 80.00th=[ 368], 90.00th=[ 535], 95.00th=[ 535], | 99.00th=[ 535], 99.50th=[ 535], 99.90th=[ 535], 99.95th=[ 535], | 99.99th=[ 535] bw ( KiB/s): min= 2003, max= 3849, per=61.58%, avg=2476.75, stdev=915.06, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 write: IOPS=1, BW=1356KiB/s (1389kB/s)(6144KiB/4530msec); 0 zone resets clat (msec): min=249, max=710, avg=453.75, stdev=155.96 lat (msec): min=251, max=710, avg=454.19, stdev=155.43 clat percentiles (msec): | 1.00th=[ 249], 5.00th=[ 249], 10.00th=[ 249], 20.00th=[ 397], | 30.00th=[ 397], 40.00th=[ 401], 50.00th=[ 401], 60.00th=[ 426], | 70.00th=[ 542], 80.00th=[ 542], 90.00th=[ 709], 95.00th=[ 709], | 99.00th=[ 709], 99.50th=[ 709], 99.90th=[ 709], 99.95th=[ 709], | 99.99th=[ 709] bw ( KiB/s): min= 1381, max= 2048, per=32.51%, avg=1830.83, stdev=243.87, samples=6 iops : min= 1, max= 2, avg= 1.17, stdev= 0.41, samples=6 lat (msec) : 250=33.33%, 500=41.67%, 750=25.00% cpu : usr=0.00%, sys=4.92%, ctx=87, 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=145513: Mon Sep 7 07:21:51 2026 read: IOPS=1, BW=1208KiB/s (1237kB/s)(5120KiB/4237msec) clat (msec): min=144, max=1058, avg=465.36, stdev=367.97 lat (msec): min=144, max=1058, avg=465.36, stdev=367.97 clat percentiles (msec): | 1.00th=[ 146], 5.00th=[ 146], 10.00th=[ 146], 20.00th=[ 146], | 30.00th=[ 262], 40.00th=[ 262], 50.00th=[ 284], 60.00th=[ 284], | 70.00th=[ 575], 80.00th=[ 575], 90.00th=[ 1062], 95.00th=[ 1062], | 99.00th=[ 1062], 99.50th=[ 1062], 99.90th=[ 1062], 99.95th=[ 1062], | 99.99th=[ 1062] bw ( KiB/s): min= 1924, max= 4015, per=65.35%, avg=2628.33, stdev=1200.94, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=1, BW=1692KiB/s (1732kB/s)(7168KiB/4237msec); 0 zone resets clat (msec): min=133, max=361, avg=267.17, stdev=85.70 lat (msec): min=133, max=361, avg=267.90, stdev=85.82 clat percentiles (msec): | 1.00th=[ 134], 5.00th=[ 134], 10.00th=[ 134], 20.00th=[ 201], | 30.00th=[ 220], 40.00th=[ 220], 50.00th=[ 279], 60.00th=[ 334], | 70.00th=[ 334], 80.00th=[ 347], 90.00th=[ 363], 95.00th=[ 363], | 99.00th=[ 363], 99.50th=[ 363], 99.90th=[ 363], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 2763, max= 4096, per=61.46%, avg=3461.00, stdev=668.73, samples=3 iops : min= 2, max= 4, avg= 3.00, stdev= 1.00, samples=3 lat (msec) : 250=33.33%, 500=50.00%, 750=8.33%, 2000=8.33% cpu : usr=0.00%, sys=4.08%, ctx=61, 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=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=4023KiB/s (4119kB/s), 402KiB/s-2199KiB/s (412kB/s-2252kB/s), io=20.0MiB (20.0MB), run=3259-5091msec WRITE: bw=5632KiB/s (5767kB/s), 1356KiB/s-2011KiB/s (1389kB/s-2060kB/s), io=28.0MiB (29.4MB), run=3259-5091msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145515: Mon Sep 7 07:21:51 2026 read: IOPS=2, BW=2458KiB/s (2517kB/s)(7168KiB/2916msec) clat (msec): min=29, max=377, avg=210.48, stdev=117.09 lat (msec): min=29, max=377, avg=210.48, stdev=117.09 clat percentiles (msec): | 1.00th=[ 30], 5.00th=[ 30], 10.00th=[ 30], 20.00th=[ 136], | 30.00th=[ 176], 40.00th=[ 176], 50.00th=[ 182], 60.00th=[ 257], | 70.00th=[ 257], 80.00th=[ 321], 90.00th=[ 376], 95.00th=[ 376], | 99.00th=[ 376], 99.50th=[ 376], 99.90th=[ 376], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 1793, max= 4231, per=61.02%, avg=2478.00, stdev=1173.62, samples=4 iops : min= 1, max= 4, avg= 1.75, stdev= 1.50, samples=4 write: IOPS=1, BW=1756KiB/s (1798kB/s)(5120KiB/2916msec); 0 zone resets clat (msec): min=183, max=359, avg=266.26, stdev=64.17 lat (msec): min=183, max=360, avg=266.36, stdev=64.19 clat percentiles (msec): | 1.00th=[ 184], 5.00th=[ 184], 10.00th=[ 184], 20.00th=[ 184], | 30.00th=[ 241], 40.00th=[ 241], 50.00th=[ 266], 60.00th=[ 266], | 70.00th=[ 284], 80.00th=[ 284], 90.00th=[ 359], 95.00th=[ 359], | 99.00th=[ 359], 99.50th=[ 359], 99.90th=[ 359], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 1793, max= 4047, per=46.22%, avg=2627.67, stdev=1235.52, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 50=8.33%, 250=41.67%, 500=50.00% cpu : usr=0.00%, sys=21.78%, ctx=264, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145516: Mon Sep 7 07:21:51 2026 read: IOPS=0, BW=406KiB/s (416kB/s)(2048KiB/5043msec) clat (msec): min=255, max=349, avg=302.81, stdev=66.44 lat (msec): min=255, max=349, avg=302.82, stdev=66.44 clat percentiles (msec): | 1.00th=[ 255], 5.00th=[ 255], 10.00th=[ 255], 20.00th=[ 255], | 30.00th=[ 255], 40.00th=[ 255], 50.00th=[ 255], 60.00th=[ 351], | 70.00th=[ 351], 80.00th=[ 351], 90.00th=[ 351], 95.00th=[ 351], | 99.00th=[ 351], 99.50th=[ 351], 99.90th=[ 351], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 1892, max= 2003, per=47.96%, avg=1947.50, stdev=78.49, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=2031KiB/s (2079kB/s)(10.0MiB/5043msec); 0 zone resets clat (msec): min=162, max=807, avg=430.88, stdev=239.21 lat (msec): min=162, max=807, avg=431.57, stdev=238.64 clat percentiles (msec): | 1.00th=[ 163], 5.00th=[ 163], 10.00th=[ 163], 20.00th=[ 188], | 30.00th=[ 213], 40.00th=[ 234], 50.00th=[ 305], 60.00th=[ 518], | 70.00th=[ 550], 80.00th=[ 617], 90.00th=[ 718], 95.00th=[ 810], | 99.00th=[ 810], 99.50th=[ 810], 99.90th=[ 810], 99.95th=[ 810], | 99.99th=[ 810] bw ( KiB/s): min= 1906, max= 4087, per=46.27%, avg=2630.67, stdev=983.67, samples=6 iops : min= 1, max= 3, avg= 1.67, stdev= 1.03, samples=6 lat (msec) : 250=33.33%, 500=25.00%, 750=33.33%, 1000=8.33% cpu : usr=0.02%, sys=13.69%, ctx=208, 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=145517: Mon Sep 7 07:21:51 2026 read: IOPS=1, BW=1333KiB/s (1365kB/s)(6144KiB/4608msec) clat (msec): min=3, max=453, avg=213.75, stdev=148.60 lat (msec): min=3, max=453, avg=213.75, stdev=148.60 clat percentiles (msec): | 1.00th=[ 4], 5.00th=[ 4], 10.00th=[ 4], 20.00th=[ 146], | 30.00th=[ 146], 40.00th=[ 197], 50.00th=[ 197], 60.00th=[ 207], | 70.00th=[ 275], 80.00th=[ 275], 90.00th=[ 456], 95.00th=[ 456], | 99.00th=[ 456], 99.50th=[ 456], 99.90th=[ 456], 99.95th=[ 456], | 99.99th=[ 456] bw ( KiB/s): min= 3813, max= 4087, per=97.27%, avg=3950.00, stdev=193.75, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1333KiB/s (1365kB/s)(6144KiB/4608msec); 0 zone resets clat (msec): min=185, max=1023, avg=547.47, stdev=361.56 lat (msec): min=185, max=1023, avg=547.69, stdev=361.42 clat percentiles (msec): | 1.00th=[ 186], 5.00th=[ 186], 10.00th=[ 186], 20.00th=[ 236], | 30.00th=[ 236], 40.00th=[ 309], 50.00th=[ 309], 60.00th=[ 609], | 70.00th=[ 919], 80.00th=[ 919], 90.00th=[ 1020], 95.00th=[ 1020], | 99.00th=[ 1020], 99.50th=[ 1020], 99.90th=[ 1020], 99.95th=[ 1020], | 99.99th=[ 1020] bw ( KiB/s): min= 1845, max= 2043, per=34.79%, avg=1977.75, stdev=93.35, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 lat (msec) : 4=8.33%, 250=41.67%, 500=25.00%, 750=8.33%, 1000=8.33% lat (msec) : 2000=8.33% cpu : usr=0.00%, sys=13.33%, ctx=199, 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=145518: Mon Sep 7 07:21:51 2026 read: IOPS=1, BW=1498KiB/s (1533kB/s)(5120KiB/3419msec) clat (usec): min=712, max=685556, avg=230004.13, stdev=281821.10 lat (usec): min=713, max=685557, avg=230005.34, stdev=281820.68 clat percentiles (usec): | 1.00th=[ 709], 5.00th=[ 709], 10.00th=[ 709], 20.00th=[ 709], | 30.00th=[ 4359], 40.00th=[ 4359], 50.00th=[170918], 60.00th=[170918], | 70.00th=[287310], 80.00th=[287310], 90.00th=[683672], 95.00th=[683672], | 99.00th=[683672], 99.50th=[683672], 99.90th=[683672], 99.95th=[683672], | 99.99th=[683672] bw ( KiB/s): min= 1845, max= 6071, per=97.46%, avg=3958.00, stdev=2988.23, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=2, BW=2097KiB/s (2147kB/s)(7168KiB/3419msec); 0 zone resets clat (msec): min=197, max=442, avg=300.51, stdev=85.25 lat (msec): min=197, max=445, avg=301.06, stdev=86.03 clat percentiles (msec): | 1.00th=[ 199], 5.00th=[ 199], 10.00th=[ 199], 20.00th=[ 247], | 30.00th=[ 255], 40.00th=[ 255], 50.00th=[ 284], 60.00th=[ 292], | 70.00th=[ 292], 80.00th=[ 388], 90.00th=[ 443], 95.00th=[ 443], | 99.00th=[ 443], 99.50th=[ 443], 99.90th=[ 443], 99.95th=[ 443], | 99.99th=[ 443] bw ( KiB/s): min= 1368, max= 4087, per=45.48%, avg=2585.80, stdev=1181.15, samples=5 iops : min= 1, max= 3, avg= 1.80, stdev= 1.10, samples=5 lat (usec) : 750=8.33% lat (msec) : 10=8.33%, 250=25.00%, 500=50.00%, 750=8.33% cpu : usr=0.00%, sys=16.68%, ctx=212, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=4061KiB/s (4159kB/s), 406KiB/s-2458KiB/s (416kB/s-2517kB/s), io=20.0MiB (20.0MB), run=2916-5043msec WRITE: bw=5686KiB/s (5822kB/s), 1333KiB/s-2097KiB/s (1365kB/s-2147kB/s), io=28.0MiB (29.4MB), run=2916-5043msec 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=145525: Mon Sep 7 07:22:04 2026 read: IOPS=1, BW=4808KiB/s (4923kB/s)(12.0MiB/2556msec) clat (msec): min=719, max=886, avg=799.58, stdev=83.51 lat (msec): min=719, max=886, avg=799.58, stdev=83.51 clat percentiles (msec): | 1.00th=[ 718], 5.00th=[ 718], 10.00th=[ 718], 20.00th=[ 718], | 30.00th=[ 718], 40.00th=[ 793], 50.00th=[ 793], 60.00th=[ 793], | 70.00th=[ 885], 80.00th=[ 885], 90.00th=[ 885], 95.00th=[ 885], | 99.00th=[ 885], 99.50th=[ 885], 99.90th=[ 885], 99.95th=[ 885], | 99.99th=[ 885] bw ( KiB/s): min= 8175, max= 8192, per=100.00%, avg=8183.50, stdev=12.02, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 750=33.33%, 1000=66.67% cpu : usr=0.00%, sys=18.83%, ctx=457, 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=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=145527: Mon Sep 7 07:22:04 2026 read: IOPS=0, BW=1359KiB/s (1392kB/s)(4096KiB/3013msec) clat (nsec): min=725418k, max=725418k, avg=725418353.00, stdev= 0.00 lat (nsec): min=725421k, max=725421k, avg=725420600.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 726], 5.00th=[ 726], 10.00th=[ 726], 20.00th=[ 726], | 30.00th=[ 726], 40.00th=[ 726], 50.00th=[ 726], 60.00th=[ 726], | 70.00th=[ 726], 80.00th=[ 726], 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= 8175, max= 8175, per=100.00%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2719KiB/s (2784kB/s)(8192KiB/3013msec); 0 zone resets clat (msec): min=870, max=1263, avg=1066.71, stdev=277.68 lat (msec): min=872, max=1263, avg=1068.02, stdev=276.67 clat percentiles (msec): | 1.00th=[ 869], 5.00th=[ 869], 10.00th=[ 869], 20.00th=[ 869], | 30.00th=[ 869], 40.00th=[ 869], 50.00th=[ 869], 60.00th=[ 1267], | 70.00th=[ 1267], 80.00th=[ 1267], 90.00th=[ 1267], 95.00th=[ 1267], | 99.00th=[ 1267], 99.50th=[ 1267], 99.90th=[ 1267], 99.95th=[ 1267], | 99.99th=[ 1267] bw ( KiB/s): min= 8192, max= 8192, per=92.61%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 750=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=3.69%, 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=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=145528: Mon Sep 7 07:22:04 2026 write: IOPS=0, BW=3317KiB/s (3397kB/s)(12.0MiB/3704msec); 0 zone resets clat (msec): min=332, max=1693, avg=1156.68, stdev=724.34 lat (msec): min=333, max=1693, avg=1157.80, stdev=724.63 clat percentiles (msec): | 1.00th=[ 334], 5.00th=[ 334], 10.00th=[ 334], 20.00th=[ 334], | 30.00th=[ 334], 40.00th=[ 1452], 50.00th=[ 1452], 60.00th=[ 1452], | 70.00th=[ 1687], 80.00th=[ 1687], 90.00th=[ 1687], 95.00th=[ 1687], | 99.00th=[ 1687], 99.50th=[ 1687], 99.90th=[ 1687], 99.95th=[ 1687], | 99.99th=[ 1687] bw ( KiB/s): min= 8094, max= 8192, per=92.05%, avg=8143.00, stdev=69.30, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.03%, sys=3.27%, ctx=58, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145530: Mon Sep 7 07:22:04 2026 write: IOPS=1, BW=4708KiB/s (4821kB/s)(12.0MiB/2610msec); 0 zone resets clat (msec): min=282, max=1230, avg=800.19, stdev=480.14 lat (msec): min=284, max=1230, avg=801.02, stdev=479.36 clat percentiles (msec): | 1.00th=[ 284], 5.00th=[ 284], 10.00th=[ 284], 20.00th=[ 284], | 30.00th=[ 284], 40.00th=[ 885], 50.00th=[ 885], 60.00th=[ 885], | 70.00th=[ 1234], 80.00th=[ 1234], 90.00th=[ 1234], 95.00th=[ 1234], | 99.00th=[ 1234], 99.50th=[ 1234], 99.90th=[ 1234], 99.95th=[ 1234], | 99.99th=[ 1234] bw ( KiB/s): min= 8175, max= 8175, per=92.41%, 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%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=8.09%, ctx=85, 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=5438KiB/s (5568kB/s), 1359KiB/s-4808KiB/s (1392kB/s-4923kB/s), io=16.0MiB (16.8MB), run=2556-3013msec WRITE: bw=8847KiB/s (9059kB/s), 2719KiB/s-4708KiB/s (2784kB/s-4821kB/s), io=32.0MiB (33.6MB), run=2610-3704msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145526: Mon Sep 7 07:22:04 2026 read: IOPS=2, BW=8286KiB/s (8485kB/s)(12.0MiB/1483msec) clat (msec): min=188, max=874, avg=432.97, stdev=382.88 lat (msec): min=188, max=874, avg=432.97, stdev=382.88 clat percentiles (msec): | 1.00th=[ 190], 5.00th=[ 190], 10.00th=[ 190], 20.00th=[ 190], | 30.00th=[ 190], 40.00th=[ 236], 50.00th=[ 236], 60.00th=[ 236], | 70.00th=[ 877], 80.00th=[ 877], 90.00th=[ 877], 95.00th=[ 877], | 99.00th=[ 877], 99.50th=[ 877], 99.90th=[ 877], 99.95th=[ 877], | 99.99th=[ 877] bw ( KiB/s): min=12681, max=12681, per=100.00%, avg=12681.00, stdev= 0.00, samples=1 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=1 lat (msec) : 250=66.67%, 1000=33.33% cpu : usr=0.00%, sys=10.86%, ctx=88, 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=145529: Mon Sep 7 07:22:04 2026 read: IOPS=0, BW=1124KiB/s (1151kB/s)(4096KiB/3643msec) clat (nsec): min=844999k, max=844999k, avg=844998918.00, stdev= 0.00 lat (nsec): min=845001k, max=845001k, avg=845001217.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 844], 5.00th=[ 844], 10.00th=[ 844], 20.00th=[ 844], | 30.00th=[ 844], 40.00th=[ 844], 50.00th=[ 844], 60.00th=[ 844], | 70.00th=[ 844], 80.00th=[ 844], 90.00th=[ 844], 95.00th=[ 844], | 99.00th=[ 844], 99.50th=[ 844], 99.90th=[ 844], 99.95th=[ 844], | 99.99th=[ 844] bw ( KiB/s): min= 8175, max= 8175, per=100.00%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2249KiB/s (2303kB/s)(8192KiB/3643msec); 0 zone resets clat (msec): min=800, max=1853, avg=1326.79, stdev=744.33 lat (msec): min=800, max=1853, avg=1327.07, stdev=744.37 clat percentiles (msec): | 1.00th=[ 802], 5.00th=[ 802], 10.00th=[ 802], 20.00th=[ 802], | 30.00th=[ 802], 40.00th=[ 802], 50.00th=[ 802], 60.00th=[ 1854], | 70.00th=[ 1854], 80.00th=[ 1854], 90.00th=[ 1854], 95.00th=[ 1854], | 99.00th=[ 1854], 99.50th=[ 1854], 99.90th=[ 1854], 99.95th=[ 1854], | 99.99th=[ 1854] bw ( KiB/s): min= 8031, max= 8031, per=89.29%, avg=8031.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 1000=66.67%, 2000=33.33% cpu : usr=0.00%, sys=4.37%, ctx=66, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145531: Mon Sep 7 07:22:04 2026 write: IOPS=1, BW=4110KiB/s (4208kB/s)(12.0MiB/2990msec); 0 zone resets clat (msec): min=394, max=1390, avg=971.42, stdev=516.65 lat (msec): min=394, max=1391, avg=972.33, stdev=517.00 clat percentiles (msec): | 1.00th=[ 393], 5.00th=[ 393], 10.00th=[ 393], 20.00th=[ 393], | 30.00th=[ 393], 40.00th=[ 1133], 50.00th=[ 1133], 60.00th=[ 1133], | 70.00th=[ 1385], 80.00th=[ 1385], 90.00th=[ 1385], 95.00th=[ 1385], | 99.00th=[ 1385], 99.50th=[ 1385], 99.90th=[ 1385], 99.95th=[ 1385], | 99.99th=[ 1385] bw ( KiB/s): min= 8110, max= 8110, per=90.17%, avg=8110.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.00%, sys=4.72%, ctx=47, 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=145532: Mon Sep 7 07:22:04 2026 write: IOPS=1, BW=5624KiB/s (5759kB/s)(12.0MiB/2185msec); 0 zone resets clat (msec): min=266, max=1266, avg=703.07, stdev=512.04 lat (msec): min=266, max=1268, avg=704.01, stdev=512.85 clat percentiles (msec): | 1.00th=[ 266], 5.00th=[ 266], 10.00th=[ 266], 20.00th=[ 266], | 30.00th=[ 266], 40.00th=[ 575], 50.00th=[ 575], 60.00th=[ 575], | 70.00th=[ 1267], 80.00th=[ 1267], 90.00th=[ 1267], 95.00th=[ 1267], | 99.00th=[ 1267], 99.50th=[ 1267], 99.90th=[ 1267], 99.95th=[ 1267], | 99.99th=[ 1267] bw ( KiB/s): min= 7831, max= 8175, per=88.98%, avg=8003.00, stdev=243.24, 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=6.04%, 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=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=4497KiB/s (4605kB/s), 1124KiB/s-8286KiB/s (1151kB/s-8485kB/s), io=16.0MiB (16.8MB), run=1483-3643msec WRITE: bw=8995KiB/s (9211kB/s), 2249KiB/s-5624KiB/s (2303kB/s-5759kB/s), io=32.0MiB (33.6MB), run=2185-3643msec