== sanity test 398b: DIO and buffer IO race ============== 03:40:23 (1787470823) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 4.8999 s, 10.3 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=144770: Sun Aug 23 03:42:52 2026 read: IOPS=11, BW=45.6KiB/s (46.7kB/s)(5992KiB/131412msec) clat (usec): min=31, max=206525, avg=41523.78, stdev=29903.10 lat (usec): min=32, max=206527, avg=41528.73, stdev=29900.61 clat percentiles (usec): | 1.00th=[ 47], 5.00th=[ 57], 10.00th=[ 102], 20.00th=[ 20055], | 30.00th=[ 25560], 40.00th=[ 30540], 50.00th=[ 35914], 60.00th=[ 42730], | 70.00th=[ 51643], 80.00th=[ 62653], 90.00th=[ 78119], 95.00th=[ 94897], | 99.00th=[145753], 99.50th=[160433], 99.90th=[196084], 99.95th=[206570], | 99.99th=[206570] bw ( KiB/s): min= 7, max= 111, per=25.10%, avg=45.43, stdev=19.10, samples=257 iops : min= 1, max= 27, avg=10.72, stdev= 4.80, samples=257 write: IOPS=11, BW=47.9KiB/s (49.1kB/s)(6296KiB/131412msec); 0 zone resets clat (usec): min=835, max=345379, avg=43866.51, stdev=44293.42 lat (usec): min=836, max=345381, avg=43868.35, stdev=44293.38 clat percentiles (usec): | 1.00th=[ 1156], 5.00th=[ 1303], 10.00th=[ 1532], 20.00th=[ 4113], | 30.00th=[ 8848], 40.00th=[ 20579], 50.00th=[ 32900], 60.00th=[ 45351], | 70.00th=[ 58459], 80.00th=[ 76022], 90.00th=[104334], 95.00th=[126354], | 99.00th=[183501], 99.50th=[208667], 99.90th=[312476], 99.95th=[346031], | 99.99th=[346031] bw ( KiB/s): min= 7, max= 117, per=25.02%, avg=47.53, stdev=21.62, samples=258 iops : min= 1, max= 29, avg=11.24, stdev= 5.44, samples=258 lat (usec) : 50=0.85%, 100=4.00%, 250=0.20%, 500=0.10%, 750=0.03% lat (usec) : 1000=0.16% lat (msec) : 2=6.54%, 4=3.58%, 10=6.35%, 20=8.14%, 50=36.07% lat (msec) : 100=26.24%, 250=7.62%, 500=0.13% cpu : usr=0.07%, sys=4.78%, ctx=6396, 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=144771: Sun Aug 23 03:42:52 2026 read: IOPS=11, BW=45.2KiB/s (46.2kB/s)(5940KiB/131513msec) clat (usec): min=27, max=240292, avg=40787.77, stdev=30460.69 lat (usec): min=27, max=240293, avg=40793.00, stdev=30460.57 clat percentiles (usec): | 1.00th=[ 42], 5.00th=[ 57], 10.00th=[ 73], 20.00th=[ 18220], | 30.00th=[ 24511], 40.00th=[ 29492], 50.00th=[ 35390], 60.00th=[ 41681], | 70.00th=[ 50070], 80.00th=[ 62129], 90.00th=[ 80217], 95.00th=[ 96994], | 99.00th=[133694], 99.50th=[156238], 99.90th=[238027], 99.95th=[240124], | 99.99th=[240124] bw ( KiB/s): min= 5, max= 102, per=24.74%, avg=44.77, stdev=19.96, samples=258 iops : min= 1, max= 25, avg=10.56, stdev= 5.02, samples=258 write: IOPS=12, BW=48.3KiB/s (49.4kB/s)(6348KiB/131513msec); 0 zone resets clat (usec): min=823, max=642750, avg=44583.15, stdev=46793.42 lat (usec): min=824, max=642751, avg=44586.67, stdev=46793.13 clat percentiles (usec): | 1.00th=[ 1205], 5.00th=[ 1319], 10.00th=[ 1614], 20.00th=[ 4080], | 30.00th=[ 8455], 40.00th=[ 20579], 50.00th=[ 34866], 60.00th=[ 47449], | 70.00th=[ 60556], 80.00th=[ 76022], 90.00th=[105382], 95.00th=[127402], | 99.00th=[181404], 99.50th=[238027], 99.90th=[346031], 99.95th=[641729], | 99.99th=[641729] bw ( KiB/s): min= 7, max= 126, per=25.21%, avg=47.90, stdev=20.10, samples=257 iops : min= 1, max= 31, avg=11.34, stdev= 5.10, samples=257 lat (usec) : 50=0.94%, 100=4.39%, 250=0.52%, 500=0.07%, 1000=0.07% lat (msec) : 2=6.05%, 4=4.30%, 10=6.51%, 20=8.27%, 50=34.57% lat (msec) : 100=26.14%, 250=7.98%, 500=0.16%, 750=0.03% cpu : usr=0.07%, sys=4.78%, ctx=6454, 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=144772: Sun Aug 23 03:42:52 2026 read: IOPS=11, BW=45.6KiB/s (46.7kB/s)(6028KiB/132238msec) clat (usec): min=34, max=251351, avg=41892.58, stdev=30969.09 lat (usec): min=34, max=251352, avg=41895.55, stdev=30969.54 clat percentiles (usec): | 1.00th=[ 47], 5.00th=[ 56], 10.00th=[ 79], 20.00th=[ 19268], | 30.00th=[ 25297], 40.00th=[ 30540], 50.00th=[ 36963], 60.00th=[ 43254], | 70.00th=[ 52167], 80.00th=[ 62653], 90.00th=[ 80217], 95.00th=[ 96994], | 99.00th=[139461], 99.50th=[183501], 99.90th=[238027], 99.95th=[250610], | 99.99th=[250610] bw ( KiB/s): min= 7, max= 126, per=24.87%, avg=45.02, stdev=19.98, samples=260 iops : min= 1, max= 31, avg=10.61, stdev= 5.05, samples=260 write: IOPS=11, BW=47.3KiB/s (48.5kB/s)(6260KiB/132238msec); 0 zone resets clat (usec): min=884, max=360863, avg=44047.84, stdev=45180.75 lat (usec): min=885, max=360865, avg=44050.08, stdev=45180.95 clat percentiles (usec): | 1.00th=[ 1172], 5.00th=[ 1336], 10.00th=[ 1614], 20.00th=[ 4080], | 30.00th=[ 8717], 40.00th=[ 19792], 50.00th=[ 33424], 60.00th=[ 45351], | 70.00th=[ 59507], 80.00th=[ 74974], 90.00th=[101188], 95.00th=[130548], | 99.00th=[189793], 99.50th=[208667], 99.90th=[346031], 99.95th=[362808], | 99.99th=[362808] bw ( KiB/s): min= 7, max= 111, per=24.63%, avg=46.79, stdev=20.20, samples=259 iops : min= 1, max= 27, avg=11.07, stdev= 5.08, samples=259 lat (usec) : 50=0.94%, 100=4.26%, 250=0.23%, 500=0.03%, 750=0.07% lat (usec) : 1000=0.03% lat (msec) : 2=6.12%, 4=3.94%, 10=6.45%, 20=8.69%, 50=34.80% lat (msec) : 100=26.95%, 250=7.29%, 500=0.20% cpu : usr=0.07%, sys=4.80%, ctx=6407, 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=144773: Sun Aug 23 03:42:52 2026 read: IOPS=11, BW=47.7KiB/s (48.9kB/s)(6052KiB/126822msec) clat (usec): min=27, max=252388, avg=40055.24, stdev=29200.83 lat (usec): min=27, max=252972, avg=40057.13, stdev=29203.64 clat percentiles (usec): | 1.00th=[ 44], 5.00th=[ 56], 10.00th=[ 109], 20.00th=[ 19268], | 30.00th=[ 24511], 40.00th=[ 29230], 50.00th=[ 34341], 60.00th=[ 40633], | 70.00th=[ 49546], 80.00th=[ 61080], 90.00th=[ 79168], 95.00th=[ 92799], | 99.00th=[130548], 99.50th=[143655], 99.90th=[202376], 99.95th=[252707], | 99.99th=[252707] bw ( KiB/s): min= 5, max= 111, per=26.33%, avg=47.66, stdev=19.07, samples=248 iops : min= 1, max= 27, avg=11.28, stdev= 4.80, samples=248 write: IOPS=12, BW=49.2KiB/s (50.4kB/s)(6236KiB/126822msec); 0 zone resets clat (usec): min=993, max=546271, avg=42394.99, stdev=44337.13 lat (usec): min=994, max=546273, avg=42398.47, stdev=44336.54 clat percentiles (usec): | 1.00th=[ 1172], 5.00th=[ 1303], 10.00th=[ 1483], 20.00th=[ 4228], | 30.00th=[ 9372], 40.00th=[ 20317], 50.00th=[ 31327], 60.00th=[ 42730], | 70.00th=[ 56886], 80.00th=[ 72877], 90.00th=[ 98042], 95.00th=[126354], | 99.00th=[175113], 99.50th=[208667], 99.90th=[341836], 99.95th=[549454], | 99.99th=[549454] bw ( KiB/s): min= 7, max= 134, per=25.62%, avg=48.68, stdev=20.42, samples=250 iops : min= 1, max= 33, avg=11.53, stdev= 5.15, samples=250 lat (usec) : 50=1.01%, 100=3.84%, 250=0.39%, 500=0.10%, 1000=0.03% lat (msec) : 2=6.64%, 4=3.39%, 10=6.38%, 20=8.56%, 50=37.43% lat (msec) : 100=25.52%, 250=6.51%, 500=0.16%, 750=0.03% cpu : usr=0.08%, sys=4.77%, ctx=6384, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=182KiB/s (186kB/s), 45.2KiB/s-47.7KiB/s (46.2kB/s-48.9kB/s), io=23.4MiB (24.6MB), run=126822-132238msec WRITE: bw=190KiB/s (195kB/s), 47.3KiB/s-49.2KiB/s (48.5kB/s-50.4kB/s), io=24.6MiB (25.7MB), run=126822-132238msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144765: Sun Aug 23 03:45:21 2026 read: IOPS=5, BW=21.4KiB/s (21.9kB/s)(5992KiB/280388msec) clat (msec): min=6, max=922, avg=35.84, stdev=43.40 lat (msec): min=6, max=922, avg=35.84, stdev=43.40 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 19], 50.00th=[ 23], 60.00th=[ 27], | 70.00th=[ 34], 80.00th=[ 45], 90.00th=[ 80], 95.00th=[ 111], | 99.00th=[ 186], 99.50th=[ 264], 99.90th=[ 355], 99.95th=[ 919], | 99.99th=[ 919] bw ( KiB/s): min= 7, max= 87, per=29.01%, avg=24.66, stdev=16.66, samples=470 iops : min= 1, max= 21, avg= 5.57, stdev= 4.21, samples=470 write: IOPS=5, BW=22.5KiB/s (22.0kB/s)(6296KiB/280388msec); 0 zone resets clat (msec): min=35, max=707, avg=143.73, stdev=70.92 lat (msec): min=35, max=707, avg=143.73, stdev=70.92 clat percentiles (msec): | 1.00th=[ 49], 5.00th=[ 65], 10.00th=[ 74], 20.00th=[ 88], | 30.00th=[ 100], 40.00th=[ 111], 50.00th=[ 125], 60.00th=[ 142], | 70.00th=[ 163], 80.00th=[ 194], 90.00th=[ 241], 95.00th=[ 284], | 99.00th=[ 380], 99.50th=[ 405], 99.90th=[ 514], 99.95th=[ 709], | 99.99th=[ 709] bw ( KiB/s): min= 7, max= 55, per=24.95%, avg=22.20, stdev=10.58, samples=546 iops : min= 1, max= 13, avg= 4.96, stdev= 2.73, samples=546 lat (msec) : 10=3.19%, 20=18.29%, 50=19.08%, 100=21.00%, 250=33.79% lat (msec) : 500=4.56%, 750=0.07%, 1000=0.03% cpu : usr=0.04%, sys=1.16%, ctx=5041, 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=144766: Sun Aug 23 03:45:21 2026 read: IOPS=5, BW=21.1KiB/s (21.6kB/s)(5940KiB/282090msec) clat (msec): min=5, max=864, avg=35.37, stdev=43.68 lat (msec): min=5, max=864, avg=35.37, stdev=43.68 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 19], 50.00th=[ 22], 60.00th=[ 27], | 70.00th=[ 34], 80.00th=[ 49], 90.00th=[ 73], 95.00th=[ 99], | 99.00th=[ 169], 99.50th=[ 284], 99.90th=[ 409], 99.95th=[ 869], | 99.99th=[ 869] bw ( KiB/s): min= 7, max= 88, per=29.19%, avg=24.81, stdev=17.47, samples=464 iops : min= 1, max= 22, avg= 5.62, stdev= 4.42, samples=464 write: IOPS=5, BW=22.5KiB/s (23.0kB/s)(6348KiB/282090msec); 0 zone resets clat (msec): min=37, max=560, avg=144.36, stdev=71.83 lat (msec): min=37, max=560, avg=144.37, stdev=71.82 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 64], 10.00th=[ 73], 20.00th=[ 88], | 30.00th=[ 100], 40.00th=[ 112], 50.00th=[ 127], 60.00th=[ 144], | 70.00th=[ 165], 80.00th=[ 190], 90.00th=[ 241], 95.00th=[ 296], | 99.00th=[ 384], 99.50th=[ 405], 99.90th=[ 523], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 7, max= 56, per=25.02%, avg=22.27, stdev=10.74, samples=550 iops : min= 1, max= 14, avg= 4.97, stdev= 2.77, samples=550 lat (msec) : 10=3.35%, 20=18.65%, 50=17.51%, 100=22.07%, 250=33.66% lat (msec) : 500=4.65%, 750=0.07%, 1000=0.03% cpu : usr=0.04%, sys=1.17%, ctx=5230, 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=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=144767: Sun Aug 23 03:45:21 2026 read: IOPS=5, BW=21.3KiB/s (21.9kB/s)(6028KiB/282430msec) clat (msec): min=5, max=410, avg=37.33, stdev=42.25 lat (msec): min=5, max=410, avg=37.33, stdev=42.25 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 23], 60.00th=[ 28], | 70.00th=[ 36], 80.00th=[ 50], 90.00th=[ 83], 95.00th=[ 117], | 99.00th=[ 211], 99.50th=[ 296], 99.90th=[ 405], 99.95th=[ 409], | 99.99th=[ 409] bw ( KiB/s): min= 7, max= 111, per=28.39%, avg=24.13, stdev=17.28, samples=483 iops : min= 1, max= 27, avg= 5.45, stdev= 4.38, samples=483 write: IOPS=5, BW=22.2KiB/s (22.7kB/s)(6260KiB/282430msec); 0 zone resets clat (msec): min=31, max=980, avg=144.21, stdev=74.83 lat (msec): min=31, max=980, avg=144.21, stdev=74.83 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 64], 10.00th=[ 73], 20.00th=[ 87], | 30.00th=[ 100], 40.00th=[ 111], 50.00th=[ 125], 60.00th=[ 142], | 70.00th=[ 163], 80.00th=[ 192], 90.00th=[ 247], 95.00th=[ 288], | 99.00th=[ 384], 99.50th=[ 418], 99.90th=[ 684], 99.95th=[ 978], | 99.99th=[ 978] bw ( KiB/s): min= 7, max= 56, per=24.99%, avg=22.24, stdev=10.58, samples=542 iops : min= 1, max= 14, avg= 4.97, stdev= 2.74, samples=542 lat (msec) : 10=3.39%, 20=17.48%, 50=19.04%, 100=21.42%, 250=33.66% lat (msec) : 500=4.95%, 750=0.03%, 1000=0.03% cpu : usr=0.04%, sys=1.18%, ctx=5280, 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=144768: Sun Aug 23 03:45:21 2026 read: IOPS=5, BW=21.7KiB/s (22.3kB/s)(6052KiB/278464msec) clat (msec): min=4, max=390, avg=36.35, stdev=40.54 lat (msec): min=4, max=390, avg=36.36, stdev=40.54 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 20], 50.00th=[ 23], 60.00th=[ 28], | 70.00th=[ 35], 80.00th=[ 50], 90.00th=[ 79], 95.00th=[ 107], | 99.00th=[ 218], 99.50th=[ 296], 99.90th=[ 380], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 7, max= 120, per=28.73%, avg=24.42, stdev=17.40, samples=480 iops : min= 1, max= 30, avg= 5.52, stdev= 4.39, samples=480 write: IOPS=5, BW=22.4KiB/s (22.9kB/s)(6236KiB/278464msec); 0 zone resets clat (msec): min=36, max=1071, avg=143.04, stdev=73.77 lat (msec): min=36, max=1071, avg=143.04, stdev=73.77 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 62], 10.00th=[ 71], 20.00th=[ 86], | 30.00th=[ 99], 40.00th=[ 111], 50.00th=[ 125], 60.00th=[ 144], | 70.00th=[ 165], 80.00th=[ 192], 90.00th=[ 241], 95.00th=[ 284], | 99.00th=[ 363], 99.50th=[ 422], 99.90th=[ 498], 99.95th=[ 1070], | 99.99th=[ 1070] bw ( KiB/s): min= 7, max= 56, per=24.94%, avg=22.20, stdev=10.92, samples=542 iops : min= 1, max= 14, avg= 4.96, stdev= 2.82, samples=542 lat (msec) : 10=3.29%, 20=17.77%, 50=19.47%, 100=21.97%, 250=32.88% lat (msec) : 500=4.59%, 2000=0.03% cpu : usr=0.04%, sys=1.21%, ctx=5182, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=85.0KiB/s (87.1kB/s), 21.1KiB/s-21.7KiB/s (21.6kB/s-22.3kB/s), io=23.4MiB (24.6MB), run=278464-282430msec WRITE: bw=89.0KiB/s (91.1kB/s), 22.2KiB/s-22.5KiB/s (22.7kB/s-23.0kB/s), io=24.6MiB (25.7MB), run=278464-282430msec 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=144832: Sun Aug 23 03:45:56 2026 read: IOPS=14, BW=228KiB/s (233kB/s)(5920KiB/25993msec) clat (usec): min=35, max=237559, avg=35114.00, stdev=29780.80 lat (usec): min=35, max=237559, avg=35115.41, stdev=29780.56 clat percentiles (usec): | 1.00th=[ 40], 5.00th=[ 55], 10.00th=[ 59], 20.00th=[ 92], | 30.00th=[ 21365], 40.00th=[ 27919], 50.00th=[ 32637], 60.00th=[ 37487], | 70.00th=[ 46400], 80.00th=[ 55313], 90.00th=[ 68682], 95.00th=[ 76022], | 99.00th=[156238], 99.50th=[206570], 99.90th=[238027], 99.95th=[238027], | 99.99th=[238027] bw ( KiB/s): min= 94, max= 410, per=24.89%, avg=226.76, stdev=79.27, samples=50 iops : min= 5, max= 25, avg=13.42, stdev= 5.03, samples=50 write: IOPS=15, BW=245KiB/s (251kB/s)(6368KiB/25993msec); 0 zone resets clat (usec): min=1411, max=275408, avg=31409.07, stdev=36886.30 lat (usec): min=1413, max=275409, avg=31411.23, stdev=36886.28 clat percentiles (usec): | 1.00th=[ 1565], 5.00th=[ 1811], 10.00th=[ 2114], 20.00th=[ 4228], | 30.00th=[ 6652], 40.00th=[ 10683], 50.00th=[ 18482], 60.00th=[ 26346], | 70.00th=[ 36439], 80.00th=[ 51643], 90.00th=[ 86508], 95.00th=[104334], | 99.00th=[154141], 99.50th=[206570], 99.90th=[274727], 99.95th=[274727], | 99.99th=[274727] bw ( KiB/s): min= 32, max= 544, per=25.75%, avg=246.96, stdev=109.47, samples=50 iops : min= 2, max= 34, avg=14.70, stdev= 6.87, samples=50 lat (usec) : 50=1.30%, 100=8.46%, 250=0.13%, 750=0.13% lat (msec) : 2=5.21%, 4=5.21%, 10=10.16%, 20=10.55%, 50=35.29% lat (msec) : 100=19.53%, 250=3.91%, 500=0.13% cpu : usr=0.09%, sys=5.55%, ctx=1371, 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=144833: Sun Aug 23 03:45:56 2026 read: IOPS=13, BW=221KiB/s (227kB/s)(5744KiB/25964msec) clat (usec): min=33, max=241737, avg=38756.66, stdev=31520.05 lat (usec): min=33, max=241738, avg=38757.89, stdev=31520.05 clat percentiles (usec): | 1.00th=[ 41], 5.00th=[ 55], 10.00th=[ 62], 20.00th=[ 1037], | 30.00th=[ 23725], 40.00th=[ 30278], 50.00th=[ 36439], 60.00th=[ 43254], | 70.00th=[ 48497], 80.00th=[ 60031], 90.00th=[ 74974], 95.00th=[ 89654], | 99.00th=[139461], 99.50th=[187696], 99.90th=[242222], 99.95th=[242222], | 99.99th=[242222] bw ( KiB/s): min= 63, max= 539, per=24.36%, avg=221.88, stdev=93.05, samples=50 iops : min= 3, max= 33, avg=13.10, stdev= 5.85, samples=50 write: IOPS=15, BW=252KiB/s (258kB/s)(6544KiB/25964msec); 0 zone resets clat (usec): min=1472, max=202749, avg=29104.27, stdev=30785.37 lat (usec): min=1473, max=202751, avg=29106.69, stdev=30785.98 clat percentiles (usec): | 1.00th=[ 1631], 5.00th=[ 1860], 10.00th=[ 2180], 20.00th=[ 4228], | 30.00th=[ 6063], 40.00th=[ 9634], 50.00th=[ 16188], 60.00th=[ 26608], | 70.00th=[ 39060], 80.00th=[ 55837], 90.00th=[ 73925], 95.00th=[ 88605], | 99.00th=[115868], 99.50th=[137364], 99.90th=[202376], 99.95th=[202376], | 99.99th=[202376] bw ( KiB/s): min= 62, max= 443, per=26.28%, avg=252.02, stdev=86.94, samples=50 iops : min= 3, max= 27, avg=15.02, stdev= 5.52, samples=50 lat (usec) : 50=1.30%, 100=7.42%, 250=0.39%, 750=0.13% lat (msec) : 2=4.56%, 4=6.25%, 10=11.20%, 20=8.46%, 50=34.51% lat (msec) : 100=22.66%, 250=3.12% cpu : usr=0.10%, sys=6.12%, ctx=1453, 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=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=144836: Sun Aug 23 03:45:56 2026 read: IOPS=14, BW=238KiB/s (244kB/s)(6256KiB/26267msec) clat (usec): min=33, max=184662, avg=35328.24, stdev=29523.51 lat (usec): min=34, max=184664, avg=35329.56, stdev=29523.65 clat percentiles (usec): | 1.00th=[ 40], 5.00th=[ 53], 10.00th=[ 60], 20.00th=[ 88], | 30.00th=[ 22414], 40.00th=[ 28181], 50.00th=[ 32637], 60.00th=[ 38011], | 70.00th=[ 45876], 80.00th=[ 54264], 90.00th=[ 69731], 95.00th=[ 88605], | 99.00th=[126354], 99.50th=[173016], 99.90th=[185598], 99.95th=[185598], | 99.99th=[185598] bw ( KiB/s): min= 64, max= 502, per=26.34%, avg=240.00, stdev=95.89, samples=51 iops : min= 4, max= 31, avg=14.27, stdev= 6.06, samples=51 write: IOPS=14, BW=230KiB/s (235kB/s)(6032KiB/26267msec); 0 zone resets clat (usec): min=1120, max=230387, avg=31949.99, stdev=35626.31 lat (usec): min=1122, max=230390, avg=31952.60, stdev=35627.03 clat percentiles (usec): | 1.00th=[ 1549], 5.00th=[ 1811], 10.00th=[ 2089], 20.00th=[ 4752], | 30.00th=[ 7111], 40.00th=[ 11863], 50.00th=[ 19792], 60.00th=[ 26608], | 70.00th=[ 38536], 80.00th=[ 58983], 90.00th=[ 78119], 95.00th=[104334], | 99.00th=[154141], 99.50th=[225444], 99.90th=[229639], 99.95th=[229639], | 99.99th=[229639] bw ( KiB/s): min= 31, max= 447, per=23.73%, avg=227.61, stdev=102.27, samples=51 iops : min= 1, max= 27, avg=13.47, stdev= 6.40, samples=51 lat (usec) : 50=2.21%, 100=8.46%, 250=0.65% lat (msec) : 2=4.69%, 4=4.82%, 10=10.16%, 20=8.33%, 50=35.81% lat (msec) : 100=20.57%, 250=4.30% cpu : usr=0.08%, sys=5.84%, ctx=1452, 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=144837: Sun Aug 23 03:45:56 2026 read: IOPS=14, BW=231KiB/s (236kB/s)(6032KiB/26163msec) clat (usec): min=32, max=208090, avg=33457.20, stdev=32364.35 lat (usec): min=32, max=208091, avg=33458.60, stdev=32364.29 clat percentiles (usec): | 1.00th=[ 41], 5.00th=[ 53], 10.00th=[ 60], 20.00th=[ 71], | 30.00th=[ 16712], 40.00th=[ 25822], 50.00th=[ 31065], 60.00th=[ 36439], | 70.00th=[ 44303], 80.00th=[ 52691], 90.00th=[ 66323], 95.00th=[ 81265], | 99.00th=[175113], 99.50th=[204473], 99.90th=[208667], 99.95th=[208667], | 99.99th=[208667] bw ( KiB/s): min= 31, max= 400, per=25.83%, avg=235.32, stdev=85.91, samples=50 iops : min= 1, max= 25, avg=13.96, stdev= 5.46, samples=50 write: IOPS=14, BW=239KiB/s (245kB/s)(6256KiB/26163msec); 0 zone resets clat (usec): min=1458, max=373203, avg=33876.85, stdev=46498.80 lat (usec): min=1459, max=373206, avg=33880.71, stdev=46498.43 clat percentiles (usec): | 1.00th=[ 1549], 5.00th=[ 1860], 10.00th=[ 2474], 20.00th=[ 4686], | 30.00th=[ 6915], 40.00th=[ 9896], 50.00th=[ 16057], 60.00th=[ 25560], | 70.00th=[ 38011], 80.00th=[ 57934], 90.00th=[ 81265], 95.00th=[104334], | 99.00th=[308282], 99.50th=[350225], 99.90th=[371196], 99.95th=[371196], | 99.99th=[371196] bw ( KiB/s): min= 32, max= 504, per=25.16%, avg=241.29, stdev=107.26, samples=51 iops : min= 2, max= 31, avg=14.33, stdev= 6.72, samples=51 lat (usec) : 50=1.56%, 100=11.46%, 250=0.52%, 750=0.13% lat (msec) : 2=3.26%, 4=5.21%, 10=12.76%, 20=8.72%, 50=32.68% lat (msec) : 100=19.27%, 250=3.91%, 500=0.52% cpu : usr=0.08%, sys=5.78%, ctx=1316, 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=912KiB/s (934kB/s), 221KiB/s-238KiB/s (227kB/s-244kB/s), io=23.4MiB (24.5MB), run=25964-26267msec WRITE: bw=959KiB/s (982kB/s), 230KiB/s-252KiB/s (235kB/s-258kB/s), io=24.6MiB (25.8MB), run=25964-26267msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144830: Sun Aug 23 03:46:39 2026 read: IOPS=5, BW=85.6KiB/s (87.6kB/s)(5920KiB/69188msec) clat (msec): min=7, max=335, avg=41.06, stdev=32.62 lat (msec): min=7, max=335, avg=41.06, stdev=32.62 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 13], 10.00th=[ 15], 20.00th=[ 20], | 30.00th=[ 24], 40.00th=[ 28], 50.00th=[ 33], 60.00th=[ 39], | 70.00th=[ 45], 80.00th=[ 53], 90.00th=[ 80], 95.00th=[ 101], | 99.00th=[ 157], 99.50th=[ 224], 99.90th=[ 334], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 31, max= 348, per=26.46%, avg=91.57, stdev=57.50, samples=125 iops : min= 1, max= 21, avg= 4.94, stdev= 3.67, samples=125 write: IOPS=5, BW=92.0KiB/s (94.2kB/s)(6368KiB/69188msec); 0 zone resets clat (msec): min=36, max=442, avg=135.10, stdev=63.52 lat (msec): min=36, max=442, avg=135.11, stdev=63.52 clat percentiles (msec): | 1.00th=[ 44], 5.00th=[ 63], 10.00th=[ 71], 20.00th=[ 86], | 30.00th=[ 101], 40.00th=[ 110], 50.00th=[ 121], 60.00th=[ 133], | 70.00th=[ 150], 80.00th=[ 176], 90.00th=[ 211], 95.00th=[ 262], | 99.00th=[ 388], 99.50th=[ 414], 99.90th=[ 443], 99.95th=[ 443], | 99.99th=[ 443] bw ( KiB/s): min= 21, max= 192, per=25.43%, avg=92.56, stdev=37.58, samples=134 iops : min= 1, max= 12, avg= 4.99, stdev= 2.47, samples=134 lat (msec) : 10=0.52%, 20=9.64%, 50=27.86%, 100=23.44%, 250=35.68% lat (msec) : 500=2.86% cpu : usr=0.04%, sys=1.42%, ctx=1481, 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=144831: Sun Aug 23 03:46:39 2026 read: IOPS=5, BW=83.2KiB/s (85.2kB/s)(5744KiB/69075msec) clat (msec): min=9, max=163, avg=39.58, stdev=24.98 lat (msec): min=9, max=163, avg=39.59, stdev=24.98 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 14], 10.00th=[ 17], 20.00th=[ 22], | 30.00th=[ 26], 40.00th=[ 29], 50.00th=[ 34], 60.00th=[ 39], | 70.00th=[ 44], 80.00th=[ 53], 90.00th=[ 68], 95.00th=[ 96], | 99.00th=[ 146], 99.50th=[ 157], 99.90th=[ 163], 99.95th=[ 163], | 99.99th=[ 163] bw ( KiB/s): min= 22, max= 320, per=27.19%, avg=94.08, stdev=63.87, samples=119 iops : min= 1, max= 20, avg= 5.11, stdev= 4.05, samples=119 write: IOPS=5, BW=94.7KiB/s (97.0kB/s)(6544KiB/69075msec); 0 zone resets clat (msec): min=38, max=440, avg=133.35, stdev=62.86 lat (msec): min=38, max=440, avg=133.36, stdev=62.86 clat percentiles (msec): | 1.00th=[ 51], 5.00th=[ 63], 10.00th=[ 70], 20.00th=[ 81], | 30.00th=[ 95], 40.00th=[ 107], 50.00th=[ 121], 60.00th=[ 133], | 70.00th=[ 153], 80.00th=[ 178], 90.00th=[ 222], 95.00th=[ 259], | 99.00th=[ 317], 99.50th=[ 380], 99.90th=[ 443], 99.95th=[ 443], | 99.99th=[ 443] bw ( KiB/s): min= 29, max= 192, per=26.07%, avg=94.90, stdev=38.13, samples=135 iops : min= 1, max= 12, avg= 5.13, stdev= 2.50, samples=135 lat (msec) : 10=0.78%, 20=6.64%, 50=29.43%, 100=26.69%, 250=33.20% lat (msec) : 500=3.26% cpu : usr=0.03%, sys=1.50%, ctx=1504, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144834: Sun Aug 23 03:46:39 2026 read: IOPS=5, BW=93.0KiB/s (95.3kB/s)(6256KiB/67237msec) clat (msec): min=7, max=353, avg=41.03, stdev=33.72 lat (msec): min=7, max=353, avg=41.03, stdev=33.72 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 13], 10.00th=[ 16], 20.00th=[ 20], | 30.00th=[ 25], 40.00th=[ 29], 50.00th=[ 34], 60.00th=[ 38], | 70.00th=[ 45], 80.00th=[ 54], 90.00th=[ 71], 95.00th=[ 96], | 99.00th=[ 186], 99.50th=[ 239], 99.90th=[ 355], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 21, max= 318, per=29.40%, avg=101.72, stdev=67.83, samples=121 iops : min= 1, max= 19, avg= 5.56, stdev= 4.29, samples=121 write: IOPS=5, BW=89.7KiB/s (91.9kB/s)(6032KiB/67237msec); 0 zone resets clat (msec): min=40, max=402, avg=135.63, stdev=61.37 lat (msec): min=40, max=402, avg=135.64, stdev=61.37 clat percentiles (msec): | 1.00th=[ 52], 5.00th=[ 62], 10.00th=[ 73], 20.00th=[ 86], | 30.00th=[ 100], 40.00th=[ 110], 50.00th=[ 120], 60.00th=[ 136], | 70.00th=[ 157], 80.00th=[ 182], 90.00th=[ 213], 95.00th=[ 255], | 99.00th=[ 351], 99.50th=[ 388], 99.90th=[ 401], 99.95th=[ 401], | 99.99th=[ 401] bw ( KiB/s): min= 31, max= 221, per=24.74%, avg=90.07, stdev=38.30, samples=130 iops : min= 1, max= 13, avg= 4.83, stdev= 2.48, samples=130 lat (msec) : 10=1.30%, 20=9.11%, 50=29.17%, 100=24.22%, 250=33.59% lat (msec) : 500=2.60% cpu : usr=0.05%, sys=1.49%, ctx=1525, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144835: Sun Aug 23 03:46:39 2026 read: IOPS=5, BW=87.3KiB/s (89.4kB/s)(6032KiB/69065msec) clat (msec): min=6, max=337, avg=43.20, stdev=39.38 lat (msec): min=6, max=337, avg=43.21, stdev=39.38 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 13], 10.00th=[ 16], 20.00th=[ 19], | 30.00th=[ 24], 40.00th=[ 28], 50.00th=[ 33], 60.00th=[ 39], | 70.00th=[ 45], 80.00th=[ 56], 90.00th=[ 79], 95.00th=[ 128], | 99.00th=[ 192], 99.50th=[ 321], 99.90th=[ 338], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 29, max= 287, per=28.38%, avg=98.18, stdev=63.41, samples=120 iops : min= 1, max= 17, avg= 5.35, stdev= 4.02, samples=120 write: IOPS=5, BW=90.6KiB/s (92.8kB/s)(6256KiB/69065msec); 0 zone resets clat (msec): min=50, max=444, avg=134.49, stdev=60.30 lat (msec): min=50, max=444, avg=134.50, stdev=60.29 clat percentiles (msec): | 1.00th=[ 56], 5.00th=[ 67], 10.00th=[ 75], 20.00th=[ 87], | 30.00th=[ 96], 40.00th=[ 107], 50.00th=[ 120], 60.00th=[ 134], | 70.00th=[ 153], 80.00th=[ 180], 90.00th=[ 215], 95.00th=[ 257], | 99.00th=[ 363], 99.50th=[ 393], 99.90th=[ 447], 99.95th=[ 447], | 99.99th=[ 447] bw ( KiB/s): min= 30, max= 192, per=25.13%, avg=91.49, stdev=38.84, samples=134 iops : min= 1, max= 12, avg= 4.93, stdev= 2.52, samples=134 lat (msec) : 10=1.17%, 20=9.90%, 50=25.65%, 100=26.82%, 250=33.46% lat (msec) : 500=2.99% cpu : usr=0.04%, sys=1.44%, ctx=1499, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=346KiB/s (354kB/s), 83.2KiB/s-93.0KiB/s (85.2kB/s-95.3kB/s), io=23.4MiB (24.5MB), run=67237-69188msec WRITE: bw=364KiB/s (373kB/s), 89.7KiB/s-94.7KiB/s (91.9kB/s-97.0kB/s), io=24.6MiB (25.8MB), run=67237-69188msec 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=144854: Sun Aug 23 03:46:54 2026 read: IOPS=2, BW=2340KiB/s (2396kB/s)(7168KiB/3063msec) clat (usec): min=471, max=386560, avg=245387.18, stdev=134539.53 lat (usec): min=472, max=386562, avg=245388.76, stdev=134539.49 clat percentiles (usec): | 1.00th=[ 474], 5.00th=[ 474], 10.00th=[ 474], 20.00th=[164627], | 30.00th=[221250], 40.00th=[221250], 50.00th=[246416], 60.00th=[337642], | 70.00th=[337642], 80.00th=[358613], 90.00th=[387974], 95.00th=[387974], | 99.00th=[387974], 99.50th=[387974], 99.90th=[387974], 99.95th=[387974], | 99.99th=[387974] bw ( KiB/s): min= 1969, max= 2884, per=46.26%, avg=2191.80, stdev=388.10, samples=5 iops : min= 1, max= 2, avg= 1.40, stdev= 0.55, samples=5 write: IOPS=1, BW=1672KiB/s (1712kB/s)(5120KiB/3063msec); 0 zone resets clat (msec): min=135, max=422, avg=243.23, stdev=129.85 lat (msec): min=135, max=422, avg=243.31, stdev=129.86 clat percentiles (msec): | 1.00th=[ 136], 5.00th=[ 136], 10.00th=[ 136], 20.00th=[ 136], | 30.00th=[ 146], 40.00th=[ 146], 50.00th=[ 174], 60.00th=[ 174], | 70.00th=[ 342], 80.00th=[ 342], 90.00th=[ 422], 95.00th=[ 422], | 99.00th=[ 422], 99.50th=[ 422], 99.90th=[ 422], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 2031, max= 3938, per=40.29%, avg=2672.33, stdev=1096.13, samples=3 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=3 lat (usec) : 500=8.33% lat (msec) : 250=50.00%, 500=41.67% cpu : usr=0.00%, sys=13.00%, ctx=179, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144855: Sun Aug 23 03:46:54 2026 read: IOPS=0, BW=474KiB/s (485kB/s)(2048KiB/4322msec) clat (msec): min=182, max=771, avg=477.23, stdev=416.62 lat (msec): min=182, max=771, avg=477.23, stdev=416.62 clat percentiles (msec): | 1.00th=[ 184], 5.00th=[ 184], 10.00th=[ 184], 20.00th=[ 184], | 30.00th=[ 184], 40.00th=[ 184], 50.00th=[ 184], 60.00th=[ 776], | 70.00th=[ 776], 80.00th=[ 776], 90.00th=[ 776], 95.00th=[ 776], | 99.00th=[ 776], 99.50th=[ 776], 99.90th=[ 776], 99.95th=[ 776], | 99.99th=[ 776] bw ( KiB/s): min= 1537, max= 2031, per=37.65%, avg=1784.00, stdev=349.31, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2369KiB/s (2426kB/s)(10.0MiB/4322msec); 0 zone resets clat (msec): min=132, max=606, avg=319.32, stdev=194.51 lat (msec): min=132, max=607, avg=319.46, stdev=194.58 clat percentiles (msec): | 1.00th=[ 132], 5.00th=[ 132], 10.00th=[ 132], 20.00th=[ 148], | 30.00th=[ 165], 40.00th=[ 186], 50.00th=[ 213], 60.00th=[ 228], | 70.00th=[ 368], 80.00th=[ 575], 90.00th=[ 575], 95.00th=[ 609], | 99.00th=[ 609], 99.50th=[ 609], 99.90th=[ 609], 99.95th=[ 609], | 99.99th=[ 609] bw ( KiB/s): min= 1969, max= 6107, per=54.94%, avg=3644.40, stdev=2237.27, samples=5 iops : min= 1, max= 5, avg= 2.80, stdev= 2.05, samples=5 lat (msec) : 250=58.33%, 500=8.33%, 750=25.00%, 1000=8.33% cpu : usr=0.00%, sys=12.01%, ctx=144, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144856: Sun Aug 23 03:46:54 2026 read: IOPS=1, BW=1466KiB/s (1501kB/s)(6144KiB/4192msec) clat (usec): min=545, max=262119, avg=97071.05, stdev=112052.62 lat (usec): min=547, max=262120, avg=97072.38, stdev=112052.42 clat percentiles (usec): | 1.00th=[ 545], 5.00th=[ 545], 10.00th=[ 545], 20.00th=[ 562], | 30.00th=[ 562], 40.00th=[ 1254], 50.00th=[ 1254], 60.00th=[154141], | 70.00th=[164627], 80.00th=[164627], 90.00th=[261096], 95.00th=[261096], | 99.00th=[261096], 99.50th=[261096], 99.90th=[261096], 99.95th=[261096], | 99.99th=[261096] bw ( KiB/s): min= 3938, max= 6047, per=100.00%, avg=4992.50, stdev=1491.29, samples=2 iops : min= 3, max= 5, avg= 4.00, stdev= 1.41, samples=2 write: IOPS=1, BW=1466KiB/s (1501kB/s)(6144KiB/4192msec); 0 zone resets clat (msec): min=130, max=1112, avg=532.89, stdev=443.77 lat (msec): min=131, max=1112, avg=533.06, stdev=443.65 clat percentiles (msec): | 1.00th=[ 131], 5.00th=[ 131], 10.00th=[ 131], 20.00th=[ 169], | 30.00th=[ 169], 40.00th=[ 199], 50.00th=[ 199], 60.00th=[ 558], | 70.00th=[ 1028], 80.00th=[ 1028], 90.00th=[ 1116], 95.00th=[ 1116], | 99.00th=[ 1116], 99.50th=[ 1116], 99.90th=[ 1116], 99.95th=[ 1116], | 99.99th=[ 1116] bw ( KiB/s): min= 1556, max= 2039, per=28.96%, avg=1921.20, stdev=205.87, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (usec) : 750=16.67% lat (msec) : 2=8.33%, 250=41.67%, 500=8.33%, 750=8.33%, 2000=16.67% cpu : usr=0.00%, sys=9.02%, ctx=190, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144858: Sun Aug 23 03:46:54 2026 read: IOPS=1, BW=1608KiB/s (1646kB/s)(5120KiB/3185msec) clat (usec): min=886, max=293110, avg=182277.89, stdev=141714.72 lat (usec): min=887, max=293111, avg=182279.09, stdev=141714.75 clat percentiles (usec): | 1.00th=[ 889], 5.00th=[ 889], 10.00th=[ 889], 20.00th=[ 889], | 30.00th=[ 56361], 40.00th=[ 56361], 50.00th=[278922], 60.00th=[278922], | 70.00th=[278922], 80.00th=[278922], 90.00th=[291505], 95.00th=[291505], | 99.00th=[291505], 99.50th=[291505], 99.90th=[291505], 99.95th=[291505], | 99.99th=[291505] bw ( KiB/s): min= 2035, max= 5965, per=84.42%, avg=4000.00, stdev=2778.93, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=2, BW=2251KiB/s (2305kB/s)(7168KiB/3185msec); 0 zone resets clat (msec): min=200, max=526, avg=308.90, stdev=147.43 lat (msec): min=200, max=526, avg=309.00, stdev=147.41 clat percentiles (msec): | 1.00th=[ 201], 5.00th=[ 201], 10.00th=[ 201], 20.00th=[ 203], | 30.00th=[ 224], 40.00th=[ 224], 50.00th=[ 234], 60.00th=[ 259], | 70.00th=[ 259], 80.00th=[ 518], 90.00th=[ 527], 95.00th=[ 527], | 99.00th=[ 527], 99.50th=[ 527], 99.90th=[ 527], 99.95th=[ 527], | 99.99th=[ 527] bw ( KiB/s): min= 2011, max= 4079, per=42.85%, avg=2842.20, stdev=1125.41, samples=5 iops : min= 1, max= 3, avg= 1.80, stdev= 1.10, samples=5 lat (usec) : 1000=8.33% lat (msec) : 100=8.33%, 250=33.33%, 500=33.33%, 750=16.67% cpu : usr=0.00%, sys=14.92%, ctx=159, 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=4739KiB/s (4852kB/s), 474KiB/s-2340KiB/s (485kB/s-2396kB/s), io=20.0MiB (20.0MB), run=3063-4322msec WRITE: bw=6634KiB/s (6793kB/s), 1466KiB/s-2369KiB/s (1501kB/s-2426kB/s), io=28.0MiB (29.4MB), run=3063-4322msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144857: Sun Aug 23 03:46:55 2026 read: IOPS=1, BW=1607KiB/s (1645kB/s)(7168KiB/4461msec) clat (msec): min=68, max=960, avg=323.50, stdev=318.34 lat (msec): min=68, max=960, avg=323.51, stdev=318.35 clat percentiles (msec): | 1.00th=[ 69], 5.00th=[ 69], 10.00th=[ 69], 20.00th=[ 82], | 30.00th=[ 163], 40.00th=[ 163], 50.00th=[ 171], 60.00th=[ 330], | 70.00th=[ 330], 80.00th=[ 493], 90.00th=[ 961], 95.00th=[ 961], | 99.00th=[ 961], 99.50th=[ 961], 99.90th=[ 961], 99.95th=[ 961], | 99.99th=[ 961] bw ( KiB/s): min= 1492, max= 3992, per=54.91%, avg=2310.60, stdev=967.72, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 write: IOPS=1, BW=1148KiB/s (1175kB/s)(5120KiB/4461msec); 0 zone resets clat (msec): min=146, max=673, avg=379.18, stdev=232.08 lat (msec): min=146, max=673, avg=379.26, stdev=232.08 clat percentiles (msec): | 1.00th=[ 146], 5.00th=[ 146], 10.00th=[ 146], 20.00th=[ 146], | 30.00th=[ 155], 40.00th=[ 155], 50.00th=[ 384], 60.00th=[ 384], | 70.00th=[ 535], 80.00th=[ 535], 90.00th=[ 676], 95.00th=[ 676], | 99.00th=[ 676], 99.50th=[ 676], 99.90th=[ 676], 99.95th=[ 676], | 99.99th=[ 676] bw ( KiB/s): min= 2003, max= 4087, per=45.97%, avg=2708.33, stdev=1194.07, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 100=16.67%, 250=33.33%, 500=25.00%, 750=16.67%, 1000=8.33% cpu : usr=0.02%, sys=2.69%, ctx=74, 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=144859: Sun Aug 23 03:46:55 2026 read: IOPS=0, BW=421KiB/s (431kB/s)(2048KiB/4866msec) clat (msec): min=109, max=244, avg=177.00, stdev=95.19 lat (msec): min=109, max=244, avg=177.00, stdev=95.19 clat percentiles (msec): | 1.00th=[ 110], 5.00th=[ 110], 10.00th=[ 110], 20.00th=[ 110], | 30.00th=[ 110], 40.00th=[ 110], 50.00th=[ 110], 60.00th=[ 245], | 70.00th=[ 245], 80.00th=[ 245], 90.00th=[ 245], 95.00th=[ 245], | 99.00th=[ 245], 99.50th=[ 245], 99.90th=[ 245], 99.95th=[ 245], | 99.99th=[ 245] bw ( KiB/s): min= 1454, max= 1996, per=40.99%, avg=1725.00, stdev=383.25, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2104KiB/s (2155kB/s)(10.0MiB/4866msec); 0 zone resets clat (msec): min=123, max=818, avg=419.38, stdev=246.00 lat (msec): min=123, max=818, avg=419.50, stdev=246.00 clat percentiles (msec): | 1.00th=[ 125], 5.00th=[ 125], 10.00th=[ 125], 20.00th=[ 136], | 30.00th=[ 207], 40.00th=[ 300], 50.00th=[ 393], 60.00th=[ 409], | 70.00th=[ 409], 80.00th=[ 676], 90.00th=[ 726], 95.00th=[ 818], | 99.00th=[ 818], 99.50th=[ 818], 99.90th=[ 818], 99.95th=[ 818], | 99.99th=[ 818] bw ( KiB/s): min= 1996, max= 6095, per=61.22%, avg=3607.00, stdev=1696.14, samples=5 iops : min= 1, max= 5, avg= 2.60, stdev= 1.67, samples=5 lat (msec) : 250=41.67%, 500=33.33%, 750=16.67%, 1000=8.33% cpu : usr=0.02%, sys=4.40%, ctx=107, 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=144860: Sun Aug 23 03:46:55 2026 read: IOPS=1, BW=1573KiB/s (1611kB/s)(6144KiB/3905msec) clat (msec): min=78, max=368, avg=166.77, stdev=104.08 lat (msec): min=78, max=368, avg=166.77, stdev=104.08 clat percentiles (msec): | 1.00th=[ 79], 5.00th=[ 79], 10.00th=[ 79], 20.00th=[ 117], | 30.00th=[ 117], 40.00th=[ 118], 50.00th=[ 118], 60.00th=[ 142], | 70.00th=[ 178], 80.00th=[ 178], 90.00th=[ 368], 95.00th=[ 368], | 99.00th=[ 368], 99.50th=[ 368], 99.90th=[ 368], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 1996, max= 3886, per=58.79%, avg=2474.00, stdev=941.35, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1573KiB/s (1611kB/s)(6144KiB/3905msec); 0 zone resets clat (msec): min=211, max=784, avg=473.54, stdev=198.13 lat (msec): min=212, max=785, avg=473.64, stdev=198.13 clat percentiles (msec): | 1.00th=[ 213], 5.00th=[ 213], 10.00th=[ 213], 20.00th=[ 342], | 30.00th=[ 342], 40.00th=[ 414], 50.00th=[ 414], 60.00th=[ 527], | 70.00th=[ 558], 80.00th=[ 558], 90.00th=[ 785], 95.00th=[ 785], | 99.00th=[ 785], 99.50th=[ 785], 99.90th=[ 785], 99.95th=[ 785], | 99.99th=[ 785] bw ( KiB/s): min= 1943, max= 2801, per=37.13%, avg=2187.75, stdev=409.87, samples=4 iops : min= 1, max= 2, avg= 1.25, stdev= 0.50, samples=4 lat (msec) : 100=8.33%, 250=41.67%, 500=25.00%, 750=16.67%, 1000=8.33% cpu : usr=0.00%, sys=3.94%, ctx=83, 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=144861: Sun Aug 23 03:46:55 2026 read: IOPS=1, BW=1118KiB/s (1145kB/s)(5120KiB/4579msec) clat (msec): min=65, max=621, avg=296.54, stdev=247.57 lat (msec): min=65, max=621, avg=296.54, stdev=247.57 clat percentiles (msec): | 1.00th=[ 66], 5.00th=[ 66], 10.00th=[ 66], 20.00th=[ 66], | 30.00th=[ 72], 40.00th=[ 72], 50.00th=[ 247], 60.00th=[ 247], | 70.00th=[ 477], 80.00th=[ 477], 90.00th=[ 625], 95.00th=[ 625], | 99.00th=[ 625], 99.50th=[ 625], 99.90th=[ 625], 99.95th=[ 625], | 99.99th=[ 625] bw ( KiB/s): min= 1996, max= 4071, per=64.24%, avg=2703.33, stdev=1184.67, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=1, BW=1565KiB/s (1603kB/s)(7168KiB/4579msec); 0 zone resets clat (msec): min=172, max=844, avg=435.45, stdev=249.61 lat (msec): min=172, max=844, avg=435.88, stdev=249.66 clat percentiles (msec): | 1.00th=[ 174], 5.00th=[ 174], 10.00th=[ 174], 20.00th=[ 178], | 30.00th=[ 326], 40.00th=[ 326], 50.00th=[ 372], 60.00th=[ 502], | 70.00th=[ 502], 80.00th=[ 659], 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= 1943, max= 2043, per=34.00%, avg=2003.00, stdev=36.77, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 100=16.67%, 250=25.00%, 500=33.33%, 750=16.67%, 1000=8.33% cpu : usr=0.00%, sys=3.06%, ctx=87, 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=4209KiB/s (4310kB/s), 421KiB/s-1607KiB/s (431kB/s-1645kB/s), io=20.0MiB (20.0MB), run=3905-4866msec WRITE: bw=5892KiB/s (6034kB/s), 1148KiB/s-2104KiB/s (1175kB/s-2155kB/s), io=28.0MiB (29.4MB), run=3905-4866msec 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=144869: Sun Aug 23 03:47:08 2026 read: IOPS=0, BW=3827KiB/s (3919kB/s)(12.0MiB/3211msec) clat (msec): min=431, max=1412, avg=943.95, stdev=492.30 lat (msec): min=431, max=1412, avg=943.95, stdev=492.30 clat percentiles (msec): | 1.00th=[ 430], 5.00th=[ 430], 10.00th=[ 430], 20.00th=[ 430], | 30.00th=[ 430], 40.00th=[ 986], 50.00th=[ 986], 60.00th=[ 986], | 70.00th=[ 1418], 80.00th=[ 1418], 90.00th=[ 1418], 95.00th=[ 1418], | 99.00th=[ 1418], 99.50th=[ 1418], 99.90th=[ 1418], 99.95th=[ 1418], | 99.99th=[ 1418] bw ( KiB/s): min= 8062, max= 8062, per=100.00%, avg=8062.00, 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=0.03%, sys=2.99%, ctx=61, 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=144870: Sun Aug 23 03:47:08 2026 read: IOPS=0, BW=1585KiB/s (1623kB/s)(4096KiB/2584msec) clat (nsec): min=347450k, max=347450k, avg=347449638.00, stdev= 0.00 lat (nsec): min=347453k, max=347453k, avg=347452728.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 347], 5.00th=[ 347], 10.00th=[ 347], 20.00th=[ 347], | 30.00th=[ 347], 40.00th=[ 347], 50.00th=[ 347], 60.00th=[ 347], | 70.00th=[ 347], 80.00th=[ 347], 90.00th=[ 347], 95.00th=[ 347], | 99.00th=[ 347], 99.50th=[ 347], 99.90th=[ 347], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 5988, max= 5988, per=100.00%, avg=5988.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3170KiB/s (3246kB/s)(8192KiB/2584msec); 0 zone resets clat (msec): min=894, max=1260, avg=1077.49, stdev=259.36 lat (msec): min=894, max=1261, avg=1077.95, stdev=259.33 clat percentiles (msec): | 1.00th=[ 894], 5.00th=[ 894], 10.00th=[ 894], 20.00th=[ 894], | 30.00th=[ 894], 40.00th=[ 894], 50.00th=[ 894], 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= 7968, max= 7968, per=81.63%, avg=7968.00, 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=5.03%, ctx=59, 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=144871: Sun Aug 23 03:47:08 2026 write: IOPS=0, BW=3660KiB/s (3748kB/s)(12.0MiB/3357msec); 0 zone resets clat (msec): min=425, max=1908, avg=1091.71, stdev=753.17 lat (msec): min=425, max=1909, avg=1092.08, stdev=753.15 clat percentiles (msec): | 1.00th=[ 426], 5.00th=[ 426], 10.00th=[ 426], 20.00th=[ 426], | 30.00th=[ 426], 40.00th=[ 944], 50.00th=[ 944], 60.00th=[ 944], | 70.00th=[ 1905], 80.00th=[ 1905], 90.00th=[ 1905], 95.00th=[ 1905], | 99.00th=[ 1905], 99.50th=[ 1905], 99.90th=[ 1905], 99.95th=[ 1905], | 99.99th=[ 1905] bw ( KiB/s): min= 6014, max= 8062, per=72.10%, avg=7038.00, stdev=1448.15, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=4.68%, ctx=94, 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=144872: Sun Aug 23 03:47:08 2026 write: IOPS=1, BW=4963KiB/s (5082kB/s)(12.0MiB/2476msec); 0 zone resets clat (msec): min=379, max=1444, avg=793.35, stdev=570.66 lat (msec): min=383, max=1444, avg=794.92, stdev=569.41 clat percentiles (msec): | 1.00th=[ 380], 5.00th=[ 380], 10.00th=[ 380], 20.00th=[ 380], | 30.00th=[ 380], 40.00th=[ 558], 50.00th=[ 558], 60.00th=[ 558], | 70.00th=[ 1452], 80.00th=[ 1452], 90.00th=[ 1452], 95.00th=[ 1452], | 99.00th=[ 1452], 99.50th=[ 1452], 99.90th=[ 1452], 99.95th=[ 1452], | 99.99th=[ 1452] bw ( KiB/s): min= 5760, max= 7968, per=70.32%, avg=6864.00, stdev=1561.29, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.00%, sys=4.04%, ctx=66, 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=5102KiB/s (5225kB/s), 1585KiB/s-3827KiB/s (1623kB/s-3919kB/s), io=16.0MiB (16.8MB), run=2584-3211msec WRITE: bw=9761KiB/s (9995kB/s), 3170KiB/s-4963KiB/s (3246kB/s-5082kB/s), io=32.0MiB (33.6MB), run=2476-3357msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144873: Sun Aug 23 03:47:09 2026 read: IOPS=1, BW=4385KiB/s (4491kB/s)(12.0MiB/2802msec) clat (msec): min=823, max=854, avg=842.78, stdev=17.13 lat (msec): min=823, max=854, avg=842.78, stdev=17.13 clat percentiles (msec): | 1.00th=[ 827], 5.00th=[ 827], 10.00th=[ 827], 20.00th=[ 827], | 30.00th=[ 827], 40.00th=[ 852], 50.00th=[ 852], 60.00th=[ 852], | 70.00th=[ 852], 80.00th=[ 852], 90.00th=[ 852], 95.00th=[ 852], | 99.00th=[ 852], 99.50th=[ 852], 99.90th=[ 852], 99.95th=[ 852], | 99.99th=[ 852] bw ( KiB/s): min= 8126, max= 8175, per=100.00%, avg=8150.50, stdev=34.65, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=100.00% cpu : usr=0.00%, sys=9.46%, ctx=181, 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=144874: Sun Aug 23 03:47:09 2026 read: IOPS=0, BW=1014KiB/s (1038kB/s)(4096KiB/4039msec) clat (nsec): min=882563k, max=882563k, avg=882562572.00, stdev= 0.00 lat (nsec): min=882566k, max=882566k, avg=882566495.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 885], 5.00th=[ 885], 10.00th=[ 885], 20.00th=[ 885], | 30.00th=[ 885], 40.00th=[ 885], 50.00th=[ 885], 60.00th=[ 885], | 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= 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=2028KiB/s (2077kB/s)(8192KiB/4039msec); 0 zone resets clat (msec): min=935, max=1995, avg=1465.42, stdev=749.09 lat (msec): min=941, max=1995, avg=1468.27, stdev=745.32 clat percentiles (msec): | 1.00th=[ 936], 5.00th=[ 936], 10.00th=[ 936], 20.00th=[ 936], | 30.00th=[ 936], 40.00th=[ 936], 50.00th=[ 936], 60.00th=[ 1989], | 70.00th=[ 1989], 80.00th=[ 1989], 90.00th=[ 1989], 95.00th=[ 1989], | 99.00th=[ 1989], 99.50th=[ 1989], 99.90th=[ 1989], 99.95th=[ 1989], | 99.99th=[ 1989] 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 lat (msec) : 1000=66.67%, 2000=33.33% cpu : usr=0.00%, sys=4.88%, ctx=183, 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=144875: Sun Aug 23 03:47:09 2026 write: IOPS=0, BW=3021KiB/s (3093kB/s)(12.0MiB/4068msec); 0 zone resets clat (msec): min=330, max=1916, avg=1317.79, stdev=861.61 lat (msec): min=330, max=1917, avg=1319.98, stdev=862.88 clat percentiles (msec): | 1.00th=[ 330], 5.00th=[ 330], 10.00th=[ 330], 20.00th=[ 330], | 30.00th=[ 330], 40.00th=[ 1703], 50.00th=[ 1703], 60.00th=[ 1703], | 70.00th=[ 1921], 80.00th=[ 1921], 90.00th=[ 1921], 95.00th=[ 1921], | 99.00th=[ 1921], 99.50th=[ 1921], 99.90th=[ 1921], 99.95th=[ 1921], | 99.99th=[ 1921] 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 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.00%, sys=3.34%, ctx=98, 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=144876: Sun Aug 23 03:47:09 2026 write: IOPS=0, BW=3282KiB/s (3361kB/s)(12.0MiB/3744msec); 0 zone resets clat (msec): min=473, max=1734, avg=1123.80, stdev=631.41 lat (msec): min=474, max=1735, avg=1124.23, stdev=631.25 clat percentiles (msec): | 1.00th=[ 472], 5.00th=[ 472], 10.00th=[ 472], 20.00th=[ 472], | 30.00th=[ 472], 40.00th=[ 1167], 50.00th=[ 1167], 60.00th=[ 1167], | 70.00th=[ 1737], 80.00th=[ 1737], 90.00th=[ 1737], 95.00th=[ 1737], | 99.00th=[ 1737], 99.50th=[ 1737], 99.90th=[ 1737], 99.95th=[ 1737], | 99.99th=[ 1737] 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 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.00%, sys=3.26%, ctx=56, 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=4056KiB/s (4154kB/s), 1014KiB/s-4385KiB/s (1038kB/s-4491kB/s), io=16.0MiB (16.8MB), run=2802-4039msec WRITE: bw=8055KiB/s (8248kB/s), 2028KiB/s-3282KiB/s (2077kB/s-3361kB/s), io=32.0MiB (33.6MB), run=3744-4068msec