== sanity test 398b: DIO and buffer IO race ============== 05:45:59 (1787823959) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 4.80288 s, 10.5 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=145335: Thu Aug 27 05:48:01 2026 read: IOPS=14, BW=56.3KiB/s (57.7kB/s)(5992KiB/106408msec) clat (usec): min=32, max=765674, avg=35103.68, stdev=32032.52 lat (usec): min=35, max=765676, avg=35104.80, stdev=32032.54 clat percentiles (usec): | 1.00th=[ 49], 5.00th=[ 59], 10.00th=[ 239], 20.00th=[ 16188], | 30.00th=[ 20841], 40.00th=[ 24773], 50.00th=[ 29230], 60.00th=[ 34866], | 70.00th=[ 43254], 80.00th=[ 52691], 90.00th=[ 66323], 95.00th=[ 79168], | 99.00th=[110625], 99.50th=[139461], 99.90th=[261096], 99.95th=[767558], | 99.99th=[767558] bw ( KiB/s): min= 7, max= 135, per=25.07%, avg=56.41, stdev=22.73, samples=208 iops : min= 1, max= 33, avg=13.47, stdev= 5.70, samples=208 write: IOPS=14, BW=59.2KiB/s (60.6kB/s)(6296KiB/106408msec); 0 zone resets clat (usec): min=959, max=361891, avg=33901.78, stdev=34231.50 lat (usec): min=960, max=361893, avg=33906.57, stdev=34232.09 clat percentiles (usec): | 1.00th=[ 1090], 5.00th=[ 1221], 10.00th=[ 1516], 20.00th=[ 3458], | 30.00th=[ 7046], 40.00th=[ 16057], 50.00th=[ 26346], 60.00th=[ 35390], | 70.00th=[ 45876], 80.00th=[ 58983], 90.00th=[ 79168], 95.00th=[ 96994], | 99.00th=[149947], 99.50th=[158335], 99.90th=[238027], 99.95th=[362808], | 99.99th=[362808] bw ( KiB/s): min= 7, max= 183, per=25.10%, avg=59.24, stdev=24.56, samples=208 iops : min= 1, max= 45, avg=14.18, stdev= 6.19, samples=208 lat (usec) : 50=0.68%, 100=3.74%, 250=0.46%, 500=0.07%, 750=0.07% lat (usec) : 1000=0.20% lat (msec) : 2=6.32%, 4=4.95%, 10=7.13%, 20=12.50%, 50=39.32% lat (msec) : 100=21.45%, 250=3.03%, 500=0.07%, 1000=0.03% cpu : usr=0.08%, sys=5.68%, ctx=6631, 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=145336: Thu Aug 27 05:48:01 2026 read: IOPS=14, BW=56.7KiB/s (58.1kB/s)(5940KiB/104769msec) clat (usec): min=34, max=352091, avg=32882.03, stdev=25066.56 lat (usec): min=34, max=352092, avg=32885.33, stdev=25066.33 clat percentiles (usec): | 1.00th=[ 49], 5.00th=[ 58], 10.00th=[ 133], 20.00th=[ 15664], | 30.00th=[ 19792], 40.00th=[ 23987], 50.00th=[ 28181], 60.00th=[ 33817], | 70.00th=[ 40109], 80.00th=[ 49546], 90.00th=[ 62129], 95.00th=[ 73925], | 99.00th=[113771], 99.50th=[123208], 99.90th=[240124], 99.95th=[350225], | 99.99th=[350225] bw ( KiB/s): min= 5, max= 127, per=25.13%, avg=56.55, stdev=22.48, samples=206 iops : min= 1, max= 31, avg=13.51, stdev= 5.63, samples=206 write: IOPS=15, BW=60.6KiB/s (62.0kB/s)(6348KiB/104769msec); 0 zone resets clat (usec): min=947, max=778843, avg=35000.52, stdev=40671.28 lat (usec): min=949, max=778844, avg=35003.03, stdev=40671.28 clat percentiles (usec): | 1.00th=[ 1106], 5.00th=[ 1270], 10.00th=[ 1795], 20.00th=[ 3589], | 30.00th=[ 7046], 40.00th=[ 14615], 50.00th=[ 25035], 60.00th=[ 34866], | 70.00th=[ 45351], 80.00th=[ 60556], 90.00th=[ 82314], 95.00th=[103285], | 99.00th=[158335], 99.50th=[208667], 99.90th=[274727], 99.95th=[775947], | 99.99th=[775947] bw ( KiB/s): min= 15, max= 144, per=25.64%, avg=60.51, stdev=24.78, samples=206 iops : min= 3, max= 36, avg=14.50, stdev= 6.26, samples=206 lat (usec) : 50=0.65%, 100=3.91%, 250=0.59%, 500=0.10%, 1000=0.10% lat (msec) : 2=6.05%, 4=5.34%, 10=7.49%, 20=13.80%, 50=38.48% lat (msec) : 100=19.63%, 250=3.78%, 500=0.07%, 1000=0.03% cpu : usr=0.09%, sys=5.68%, ctx=6553, 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=145337: Thu Aug 27 05:48:01 2026 read: IOPS=14, BW=57.1KiB/s (58.5kB/s)(6028KiB/105602msec) clat (usec): min=28, max=292350, avg=32387.25, stdev=25338.89 lat (usec): min=28, max=292351, avg=32388.58, stdev=25338.77 clat percentiles (usec): | 1.00th=[ 45], 5.00th=[ 58], 10.00th=[ 88], 20.00th=[ 14877], | 30.00th=[ 19530], 40.00th=[ 23725], 50.00th=[ 27919], 60.00th=[ 32637], | 70.00th=[ 39060], 80.00th=[ 49021], 90.00th=[ 62653], 95.00th=[ 76022], | 99.00th=[109577], 99.50th=[124257], 99.90th=[244319], 99.95th=[291505], | 99.99th=[291505] bw ( KiB/s): min= 15, max= 134, per=25.47%, avg=57.30, stdev=24.48, samples=205 iops : min= 3, max= 33, avg=13.69, stdev= 6.17, samples=205 write: IOPS=14, BW=59.3KiB/s (60.7kB/s)(6260KiB/105602msec); 0 zone resets clat (usec): min=954, max=964263, avg=35997.33, stdev=42887.26 lat (usec): min=956, max=964265, avg=36000.77, stdev=42889.18 clat percentiles (usec): | 1.00th=[ 1090], 5.00th=[ 1221], 10.00th=[ 1565], 20.00th=[ 3654], | 30.00th=[ 6980], 40.00th=[ 16581], 50.00th=[ 26608], 60.00th=[ 37487], | 70.00th=[ 47449], 80.00th=[ 63177], 90.00th=[ 82314], 95.00th=[102237], | 99.00th=[156238], 99.50th=[162530], 99.90th=[346031], 99.95th=[960496], | 99.99th=[960496] bw ( KiB/s): min= 15, max= 119, per=25.00%, avg=59.00, stdev=20.18, samples=206 iops : min= 3, max= 29, avg=14.13, stdev= 5.09, samples=206 lat (usec) : 50=0.94%, 100=4.23%, 250=0.62%, 500=0.03%, 750=0.07% lat (usec) : 1000=0.13% lat (msec) : 2=6.32%, 4=4.59%, 10=7.10%, 20=13.38%, 50=39.10% lat (msec) : 100=19.92%, 250=3.45%, 500=0.10%, 1000=0.03% cpu : usr=0.07%, sys=5.78%, ctx=6574, 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=145338: Thu Aug 27 05:48:01 2026 read: IOPS=14, BW=56.8KiB/s (58.2kB/s)(6052KiB/106470msec) clat (usec): min=34, max=728696, avg=33794.88, stdev=31658.42 lat (usec): min=34, max=728697, avg=33796.17, stdev=31658.28 clat percentiles (usec): | 1.00th=[ 49], 5.00th=[ 56], 10.00th=[ 79], 20.00th=[ 15008], | 30.00th=[ 19792], 40.00th=[ 24773], 50.00th=[ 29230], 60.00th=[ 34866], | 70.00th=[ 40633], 80.00th=[ 49546], 90.00th=[ 64226], 95.00th=[ 77071], | 99.00th=[119014], 99.50th=[154141], 99.90th=[304088], 99.95th=[725615], | 99.99th=[725615] bw ( KiB/s): min= 5, max= 120, per=25.22%, avg=56.75, stdev=20.97, samples=208 iops : min= 1, max= 30, avg=13.56, stdev= 5.30, samples=208 write: IOPS=14, BW=58.6KiB/s (59.0kB/s)(6236KiB/106470msec); 0 zone resets clat (usec): min=993, max=500940, avg=35236.43, stdev=36569.10 lat (usec): min=994, max=500941, avg=35244.74, stdev=36564.20 clat percentiles (usec): | 1.00th=[ 1074], 5.00th=[ 1237], 10.00th=[ 1614], 20.00th=[ 3589], | 30.00th=[ 7504], 40.00th=[ 17957], 50.00th=[ 27657], 60.00th=[ 36963], | 70.00th=[ 46400], 80.00th=[ 60031], 90.00th=[ 82314], 95.00th=[101188], | 99.00th=[137364], 99.50th=[158335], 99.90th=[329253], 99.95th=[501220], | 99.99th=[501220] bw ( KiB/s): min= 7, max= 150, per=24.66%, avg=58.20, stdev=20.55, samples=209 iops : min= 1, max= 37, avg=13.92, stdev= 5.13, samples=209 lat (usec) : 50=0.98%, 100=4.39%, 250=0.46%, 500=0.07%, 750=0.03% lat (usec) : 1000=0.13% lat (msec) : 2=6.41%, 4=4.82%, 10=6.71%, 20=12.37%, 50=39.84% lat (msec) : 100=20.25%, 250=3.39%, 500=0.10%, 750=0.07% cpu : usr=0.08%, sys=5.67%, ctx=6668, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=226KiB/s (231kB/s), 56.3KiB/s-57.1KiB/s (57.7kB/s-58.5kB/s), io=23.4MiB (24.6MB), run=104769-106470msec WRITE: bw=236KiB/s (242kB/s), 58.6KiB/s-60.6KiB/s (59.0kB/s-62.0kB/s), io=24.6MiB (25.7MB), run=104769-106470msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145339: Thu Aug 27 05:50:10 2026 read: IOPS=6, BW=25.7KiB/s (26.4kB/s)(5992KiB/232746msec) clat (msec): min=5, max=820, avg=31.33, stdev=33.34 lat (msec): min=5, max=820, avg=31.33, stdev=33.33 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 19], 50.00th=[ 23], 60.00th=[ 27], | 70.00th=[ 33], 80.00th=[ 43], 90.00th=[ 65], 95.00th=[ 84], | 99.00th=[ 130], 99.50th=[ 153], 99.90th=[ 284], 99.95th=[ 818], | 99.99th=[ 818] bw ( KiB/s): min= 7, max= 96, per=27.01%, avg=27.55, stdev=17.42, samples=422 iops : min= 1, max= 24, avg= 6.26, stdev= 4.38, samples=422 write: IOPS=6, BW=27.1KiB/s (27.7kB/s)(6296KiB/232746msec); 0 zone resets clat (msec): min=35, max=344, avg=117.86, stdev=47.82 lat (msec): min=35, max=344, avg=117.86, stdev=47.82 clat percentiles (msec): | 1.00th=[ 46], 5.00th=[ 58], 10.00th=[ 66], 20.00th=[ 78], | 30.00th=[ 87], 40.00th=[ 99], 50.00th=[ 109], 60.00th=[ 122], | 70.00th=[ 136], 80.00th=[ 155], 90.00th=[ 182], 95.00th=[ 209], | 99.00th=[ 284], 99.50th=[ 296], 99.90th=[ 326], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 7, max= 55, per=25.07%, avg=26.58, stdev=10.48, samples=459 iops : min= 1, max= 13, avg= 6.02, stdev= 2.69, samples=459 lat (msec) : 10=4.69%, 20=16.44%, 50=20.90%, 100=27.18%, 250=29.88% lat (msec) : 500=0.88%, 1000=0.03% cpu : usr=0.05%, sys=1.25%, ctx=5343, 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=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=145340: Thu Aug 27 05:50:10 2026 read: IOPS=6, BW=25.3KiB/s (25.9kB/s)(5940KiB/235223msec) clat (msec): min=5, max=686, avg=31.37, stdev=34.00 lat (msec): min=5, max=686, avg=31.38, stdev=34.00 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 19], 50.00th=[ 23], 60.00th=[ 27], | 70.00th=[ 33], 80.00th=[ 42], 90.00th=[ 62], 95.00th=[ 86], | 99.00th=[ 128], 99.50th=[ 209], 99.90th=[ 422], 99.95th=[ 684], | 99.99th=[ 684] bw ( KiB/s): min= 7, max= 110, per=27.38%, avg=27.93, stdev=16.98, samples=413 iops : min= 1, max= 27, avg= 6.36, stdev= 4.29, samples=413 write: IOPS=6, BW=26.0KiB/s (27.6kB/s)(6348KiB/235223msec); 0 zone resets clat (msec): min=38, max=545, avg=118.62, stdev=52.35 lat (msec): min=38, max=545, avg=118.62, stdev=52.35 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 59], 10.00th=[ 66], 20.00th=[ 79], | 30.00th=[ 87], 40.00th=[ 96], 50.00th=[ 108], 60.00th=[ 121], | 70.00th=[ 136], 80.00th=[ 155], 90.00th=[ 186], 95.00th=[ 215], | 99.00th=[ 292], 99.50th=[ 334], 99.90th=[ 506], 99.95th=[ 550], | 99.99th=[ 550] bw ( KiB/s): min= 7, max= 64, per=25.01%, avg=26.51, stdev=10.84, samples=464 iops : min= 1, max= 16, avg= 6.00, stdev= 2.79, samples=464 lat (msec) : 10=4.07%, 20=16.67%, 50=21.74%, 100=27.44%, 250=28.71% lat (msec) : 500=1.27%, 750=0.10% cpu : usr=0.04%, sys=1.22%, ctx=5098, 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=145341: Thu Aug 27 05:50:10 2026 read: IOPS=6, BW=25.7KiB/s (26.3kB/s)(6028KiB/234298msec) clat (msec): min=4, max=240, avg=31.69, stdev=26.47 lat (msec): min=4, max=240, avg=31.69, stdev=26.47 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 21], 50.00th=[ 24], 60.00th=[ 29], | 70.00th=[ 34], 80.00th=[ 44], 90.00th=[ 62], 95.00th=[ 87], | 99.00th=[ 131], 99.50th=[ 155], 99.90th=[ 236], 99.95th=[ 241], | 99.99th=[ 241] bw ( KiB/s): min= 7, max= 103, per=26.28%, avg=26.81, stdev=17.02, samples=436 iops : min= 1, max= 25, avg= 6.08, stdev= 4.30, samples=436 write: IOPS=6, BW=26.7KiB/s (27.4kB/s)(6260KiB/234298msec); 0 zone resets clat (msec): min=39, max=934, avg=118.99, stdev=55.02 lat (msec): min=39, max=934, avg=119.00, stdev=55.02 clat percentiles (msec): | 1.00th=[ 46], 5.00th=[ 59], 10.00th=[ 66], 20.00th=[ 78], | 30.00th=[ 87], 40.00th=[ 97], 50.00th=[ 109], 60.00th=[ 122], | 70.00th=[ 136], 80.00th=[ 153], 90.00th=[ 184], 95.00th=[ 213], | 99.00th=[ 284], 99.50th=[ 321], 99.90th=[ 542], 99.95th=[ 936], | 99.99th=[ 936] bw ( KiB/s): min= 7, max= 56, per=24.85%, avg=26.34, stdev=10.51, samples=460 iops : min= 1, max= 14, avg= 5.96, stdev= 2.69, samples=460 lat (msec) : 10=3.91%, 20=15.27%, 50=23.21%, 100=27.25%, 250=29.33% lat (msec) : 500=0.98%, 750=0.03%, 1000=0.03% cpu : usr=0.04%, sys=1.22%, ctx=5113, 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=145342: Thu Aug 27 05:50:10 2026 read: IOPS=6, BW=25.9KiB/s (26.5kB/s)(6052KiB/233802msec) clat (msec): min=5, max=434, avg=32.68, stdev=33.11 lat (msec): min=5, max=434, avg=32.68, stdev=33.11 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 20], 50.00th=[ 23], 60.00th=[ 27], | 70.00th=[ 34], 80.00th=[ 45], 90.00th=[ 68], 95.00th=[ 86], | 99.00th=[ 157], 99.50th=[ 230], 99.90th=[ 359], 99.95th=[ 435], | 99.99th=[ 435] bw ( KiB/s): min= 7, max= 88, per=27.70%, avg=28.25, stdev=17.81, samples=415 iops : min= 1, max= 22, avg= 6.43, stdev= 4.50, samples=415 write: IOPS=6, BW=26.7KiB/s (27.3kB/s)(6236KiB/233802msec); 0 zone resets clat (msec): min=37, max=764, avg=117.98, stdev=51.87 lat (msec): min=37, max=764, avg=117.99, stdev=51.87 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 58], 10.00th=[ 66], 20.00th=[ 77], | 30.00th=[ 88], 40.00th=[ 97], 50.00th=[ 108], 60.00th=[ 122], | 70.00th=[ 136], 80.00th=[ 155], 90.00th=[ 184], 95.00th=[ 213], | 99.00th=[ 275], 99.50th=[ 296], 99.90th=[ 405], 99.95th=[ 768], | 99.99th=[ 768] bw ( KiB/s): min= 7, max= 64, per=24.63%, avg=26.11, stdev=10.62, samples=461 iops : min= 1, max= 16, avg= 5.89, stdev= 2.72, samples=461 lat (msec) : 10=4.33%, 20=16.86%, 50=20.96%, 100=27.25%, 250=29.56% lat (msec) : 500=1.01%, 1000=0.03% cpu : usr=0.04%, sys=1.23%, ctx=5269, 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=102KiB/s (105kB/s), 25.3KiB/s-25.9KiB/s (25.9kB/s-26.5kB/s), io=23.4MiB (24.6MB), run=232746-235223msec WRITE: bw=107KiB/s (109kB/s), 26.7KiB/s-27.1KiB/s (27.3kB/s-27.7kB/s), io=24.6MiB (25.7MB), run=232746-235223msec 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=145399: Thu Aug 27 05:50:40 2026 read: IOPS=17, BW=287KiB/s (294kB/s)(5920KiB/20593msec) clat (usec): min=33, max=217024, avg=29603.55, stdev=24032.73 lat (usec): min=33, max=217024, avg=29604.78, stdev=24032.76 clat percentiles (usec): | 1.00th=[ 41], 5.00th=[ 57], 10.00th=[ 68], 20.00th=[ 12780], | 30.00th=[ 18744], 40.00th=[ 22676], 50.00th=[ 27132], 60.00th=[ 32113], | 70.00th=[ 36439], 80.00th=[ 43779], 90.00th=[ 57934], 95.00th=[ 65799], | 99.00th=[120062], 99.50th=[145753], 99.90th=[217056], 99.95th=[217056], | 99.99th=[217056] bw ( KiB/s): min= 93, max= 477, per=26.09%, avg=284.43, stdev=82.63, samples=40 iops : min= 5, max= 29, avg=17.05, stdev= 5.18, samples=40 write: IOPS=19, BW=309KiB/s (317kB/s)(6368KiB/20593msec); 0 zone resets clat (usec): min=1438, max=144287, avg=24027.86, stdev=24850.98 lat (usec): min=1439, max=144288, avg=24030.73, stdev=24850.50 clat percentiles (usec): | 1.00th=[ 1516], 5.00th=[ 1893], 10.00th=[ 2671], 20.00th=[ 3949], | 30.00th=[ 5407], 40.00th=[ 8586], 50.00th=[ 14222], 60.00th=[ 22152], | 70.00th=[ 30278], 80.00th=[ 44303], 90.00th=[ 58459], 95.00th=[ 74974], | 99.00th=[105382], 99.50th=[110625], 99.90th=[143655], 99.95th=[143655], | 99.99th=[143655] bw ( KiB/s): min= 93, max= 640, per=26.97%, avg=309.33, stdev=114.14, samples=40 iops : min= 5, max= 40, avg=18.60, stdev= 7.22, samples=40 lat (usec) : 50=1.17%, 100=5.99%, 250=1.30%, 750=0.13%, 1000=0.26% lat (msec) : 2=2.86%, 4=7.81%, 10=12.50%, 20=13.15%, 50=38.93% lat (msec) : 100=14.58%, 250=1.30% cpu : usr=0.08%, sys=7.94%, ctx=1556, 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=145400: Thu Aug 27 05:50:40 2026 read: IOPS=16, BW=262KiB/s (268kB/s)(5744KiB/21965msec) clat (usec): min=38, max=140099, avg=29868.95, stdev=21950.33 lat (usec): min=38, max=140101, avg=29870.33, stdev=21950.26 clat percentiles (usec): | 1.00th=[ 44], 5.00th=[ 59], 10.00th=[ 68], 20.00th=[ 12518], | 30.00th=[ 19268], 40.00th=[ 25035], 50.00th=[ 29230], 60.00th=[ 33817], | 70.00th=[ 39584], 80.00th=[ 43779], 90.00th=[ 54789], 95.00th=[ 71828], | 99.00th=[101188], 99.50th=[117965], 99.90th=[139461], 99.95th=[139461], | 99.99th=[139461] bw ( KiB/s): min= 29, max= 510, per=23.85%, avg=259.95, stdev=100.02, samples=43 iops : min= 1, max= 31, avg=15.49, stdev= 6.29, samples=43 write: IOPS=18, BW=298KiB/s (305kB/s)(6544KiB/21965msec); 0 zone resets clat (usec): min=1386, max=172257, avg=27009.73, stdev=26832.35 lat (usec): min=1387, max=172260, avg=27014.57, stdev=26830.36 clat percentiles (usec): | 1.00th=[ 1549], 5.00th=[ 1893], 10.00th=[ 2966], 20.00th=[ 5080], | 30.00th=[ 7898], 40.00th=[ 11863], 50.00th=[ 17695], 60.00th=[ 25822], | 70.00th=[ 33817], 80.00th=[ 49021], 90.00th=[ 62129], 95.00th=[ 77071], | 99.00th=[113771], 99.50th=[145753], 99.90th=[173016], 99.95th=[173016], | 99.99th=[173016] bw ( KiB/s): min= 87, max= 509, per=25.80%, avg=295.91, stdev=78.97, samples=43 iops : min= 5, max= 31, avg=17.77, stdev= 4.92, samples=43 lat (usec) : 50=0.78%, 100=5.99%, 250=0.78%, 500=0.13%, 750=0.26% lat (usec) : 1000=0.13% lat (msec) : 2=3.26%, 4=5.08%, 10=12.11%, 20=13.80%, 50=41.28% lat (msec) : 100=14.84%, 250=1.56% cpu : usr=0.10%, sys=7.44%, ctx=1588, 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=145401: Thu Aug 27 05:50:40 2026 read: IOPS=17, BW=286KiB/s (293kB/s)(6256KiB/21842msec) clat (usec): min=36, max=137964, avg=29997.21, stdev=24052.79 lat (usec): min=36, max=137964, avg=29998.80, stdev=24053.85 clat percentiles (usec): | 1.00th=[ 38], 5.00th=[ 56], 10.00th=[ 64], 20.00th=[ 457], | 30.00th=[ 17171], 40.00th=[ 22938], 50.00th=[ 27657], 60.00th=[ 32900], | 70.00th=[ 39060], 80.00th=[ 47973], 90.00th=[ 58983], 95.00th=[ 73925], | 99.00th=[107480], 99.50th=[127402], 99.90th=[137364], 99.95th=[137364], | 99.99th=[137364] bw ( KiB/s): min= 117, max= 605, per=26.33%, avg=287.05, stdev=103.93, samples=43 iops : min= 7, max= 37, avg=17.21, stdev= 6.51, samples=43 write: IOPS=17, BW=276KiB/s (283kB/s)(6032KiB/21842msec); 0 zone resets clat (usec): min=1566, max=117138, avg=26073.69, stdev=24711.97 lat (usec): min=1568, max=117139, avg=26075.77, stdev=24711.84 clat percentiles (usec): | 1.00th=[ 1713], 5.00th=[ 2245], 10.00th=[ 3228], 20.00th=[ 5145], | 30.00th=[ 7701], 40.00th=[ 11731], 50.00th=[ 18220], 60.00th=[ 24249], | 70.00th=[ 33817], 80.00th=[ 43779], 90.00th=[ 63177], 95.00th=[ 78119], | 99.00th=[107480], 99.50th=[112722], 99.90th=[116917], 99.95th=[116917], | 99.99th=[116917] bw ( KiB/s): min= 64, max= 448, per=23.81%, avg=273.09, stdev=92.64, samples=43 iops : min= 4, max= 28, avg=16.33, stdev= 5.76, samples=43 lat (usec) : 50=1.69%, 100=7.55%, 250=0.78%, 500=0.26% lat (msec) : 2=1.95%, 4=5.99%, 10=11.07%, 20=14.19%, 50=39.32% lat (msec) : 100=15.76%, 250=1.43% cpu : usr=0.08%, sys=7.31%, ctx=1644, 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=145402: Thu Aug 27 05:50:40 2026 read: IOPS=17, BW=280KiB/s (287kB/s)(6032KiB/21527msec) clat (usec): min=30, max=104037, avg=29442.61, stdev=21608.70 lat (usec): min=30, max=104039, avg=29444.45, stdev=21608.90 clat percentiles (usec): | 1.00th=[ 38], 5.00th=[ 55], 10.00th=[ 61], 20.00th=[ 515], | 30.00th=[ 19268], 40.00th=[ 23725], 50.00th=[ 28181], 60.00th=[ 33817], | 70.00th=[ 39584], 80.00th=[ 47449], 90.00th=[ 56361], 95.00th=[ 66847], | 99.00th=[ 89654], 99.50th=[100140], 99.90th=[104334], 99.95th=[104334], | 99.99th=[104334] bw ( KiB/s): min= 95, max= 604, per=26.21%, avg=285.66, stdev=100.94, samples=41 iops : min= 5, max= 37, avg=17.12, stdev= 6.39, samples=41 write: IOPS=18, BW=291KiB/s (298kB/s)(6256KiB/21527msec); 0 zone resets clat (usec): min=1400, max=192804, avg=25907.92, stdev=30090.22 lat (usec): min=1402, max=192808, avg=25910.06, stdev=30090.27 clat percentiles (usec): | 1.00th=[ 1516], 5.00th=[ 1958], 10.00th=[ 2638], 20.00th=[ 4228], | 30.00th=[ 5735], 40.00th=[ 8455], 50.00th=[ 13829], 60.00th=[ 20841], | 70.00th=[ 32900], 80.00th=[ 45876], 90.00th=[ 67634], 95.00th=[ 84411], | 99.00th=[158335], 99.50th=[185598], 99.90th=[191890], 99.95th=[191890], | 99.99th=[191890] bw ( KiB/s): min= 62, max= 541, per=25.24%, avg=289.55, stdev=123.06, samples=42 iops : min= 3, max= 33, avg=17.36, stdev= 7.70, samples=42 lat (usec) : 50=1.04%, 100=7.94%, 250=0.78%, 750=0.26% lat (msec) : 2=2.60%, 4=7.03%, 10=13.80%, 20=11.98%, 50=38.41% lat (msec) : 100=14.84%, 250=1.30% cpu : usr=0.09%, sys=7.07%, ctx=1491, 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=1090KiB/s (1117kB/s), 262KiB/s-287KiB/s (268kB/s-294kB/s), io=23.4MiB (24.5MB), run=20593-21965msec WRITE: bw=1147KiB/s (1175kB/s), 276KiB/s-309KiB/s (283kB/s-317kB/s), io=24.6MiB (25.8MB), run=20593-21965msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145394: Thu Aug 27 05:51:15 2026 read: IOPS=6, BW=103KiB/s (105kB/s)(5920KiB/57462msec) clat (msec): min=6, max=287, avg=30.64, stdev=30.93 lat (msec): min=6, max=287, avg=30.64, stdev=30.93 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 19], 50.00th=[ 21], 60.00th=[ 25], | 70.00th=[ 31], 80.00th=[ 41], 90.00th=[ 53], 95.00th=[ 90], | 99.00th=[ 163], 99.50th=[ 241], 99.90th=[ 288], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 31, max= 446, per=26.84%, avg=111.66, stdev=67.23, samples=105 iops : min= 1, max= 27, avg= 6.19, stdev= 4.23, samples=105 write: IOPS=6, BW=111KiB/s (113kB/s)(6368KiB/57462msec); 0 zone resets clat (msec): min=34, max=330, avg=115.57, stdev=46.19 lat (msec): min=34, max=330, avg=115.58, stdev=46.19 clat percentiles (msec): | 1.00th=[ 49], 5.00th=[ 60], 10.00th=[ 68], 20.00th=[ 79], | 30.00th=[ 86], 40.00th=[ 95], 50.00th=[ 107], 60.00th=[ 118], | 70.00th=[ 136], 80.00th=[ 146], 90.00th=[ 169], 95.00th=[ 207], | 99.00th=[ 275], 99.50th=[ 309], 99.90th=[ 330], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 30, max= 192, per=25.18%, avg=110.27, stdev=39.92, samples=114 iops : min= 1, max= 12, avg= 6.11, stdev= 2.57, samples=114 lat (msec) : 10=3.52%, 20=18.62%, 50=20.70%, 100=26.95%, 250=28.78% lat (msec) : 500=1.43% cpu : usr=0.06%, sys=1.35%, ctx=1176, 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=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=145395: Thu Aug 27 05:51:15 2026 read: IOPS=6, BW=100KiB/s (103kB/s)(5744KiB/57366msec) clat (msec): min=6, max=176, avg=30.96, stdev=26.80 lat (msec): min=6, max=176, avg=30.96, stdev=26.80 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 22], 60.00th=[ 25], | 70.00th=[ 31], 80.00th=[ 41], 90.00th=[ 68], 95.00th=[ 105], | 99.00th=[ 129], 99.50th=[ 144], 99.90th=[ 178], 99.95th=[ 178], | 99.99th=[ 178] bw ( KiB/s): min= 30, max= 480, per=25.97%, avg=108.04, stdev=72.97, samples=104 iops : min= 1, max= 30, avg= 5.97, stdev= 4.64, samples=104 write: IOPS=7, BW=114KiB/s (117kB/s)(6544KiB/57366msec); 0 zone resets clat (msec): min=40, max=324, avg=112.60, stdev=43.70 lat (msec): min=40, max=324, avg=112.61, stdev=43.71 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 57], 10.00th=[ 66], 20.00th=[ 77], | 30.00th=[ 86], 40.00th=[ 97], 50.00th=[ 108], 60.00th=[ 116], | 70.00th=[ 127], 80.00th=[ 140], 90.00th=[ 169], 95.00th=[ 194], | 99.00th=[ 259], 99.50th=[ 288], 99.90th=[ 326], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 31, max= 192, per=25.85%, avg=113.23, stdev=41.29, samples=113 iops : min= 1, max= 12, avg= 6.29, stdev= 2.66, samples=113 lat (msec) : 10=2.99%, 20=17.71%, 50=20.31%, 100=26.30%, 250=32.03% lat (msec) : 500=0.65% cpu : usr=0.05%, sys=1.46%, ctx=1343, 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=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=145397: Thu Aug 27 05:51:15 2026 read: IOPS=7, BW=112KiB/s (115kB/s)(6256KiB/55761msec) clat (msec): min=7, max=245, avg=28.70, stdev=25.87 lat (msec): min=7, max=245, avg=28.70, stdev=25.87 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 17], 40.00th=[ 19], 50.00th=[ 22], 60.00th=[ 24], | 70.00th=[ 28], 80.00th=[ 36], 90.00th=[ 52], 95.00th=[ 71], | 99.00th=[ 163], 99.50th=[ 167], 99.90th=[ 245], 99.95th=[ 245], | 99.99th=[ 245] bw ( KiB/s): min= 30, max= 382, per=27.83%, avg=115.77, stdev=74.47, samples=107 iops : min= 1, max= 23, avg= 6.45, stdev= 4.71, samples=107 write: IOPS=6, BW=108KiB/s (111kB/s)(6032KiB/55761msec); 0 zone resets clat (msec): min=40, max=305, avg=117.98, stdev=44.89 lat (msec): min=40, max=305, avg=117.98, stdev=44.89 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 62], 10.00th=[ 71], 20.00th=[ 82], | 30.00th=[ 93], 40.00th=[ 101], 50.00th=[ 109], 60.00th=[ 121], | 70.00th=[ 129], 80.00th=[ 146], 90.00th=[ 180], 95.00th=[ 211], | 99.00th=[ 266], 99.50th=[ 305], 99.90th=[ 305], 99.95th=[ 305], | 99.99th=[ 305] bw ( KiB/s): min= 31, max= 192, per=24.55%, avg=107.53, stdev=37.63, samples=110 iops : min= 1, max= 12, avg= 5.94, stdev= 2.44, samples=110 lat (msec) : 10=2.86%, 20=20.18%, 50=22.66%, 100=23.44%, 250=30.08% lat (msec) : 500=0.78% cpu : usr=0.05%, sys=1.51%, ctx=1267, 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=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=145398: Thu Aug 27 05:51:15 2026 read: IOPS=6, BW=106KiB/s (109kB/s)(6032KiB/56712msec) clat (msec): min=6, max=280, avg=30.37, stdev=28.53 lat (msec): min=6, max=280, avg=30.37, stdev=28.54 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 18], 50.00th=[ 22], 60.00th=[ 25], | 70.00th=[ 30], 80.00th=[ 40], 90.00th=[ 61], 95.00th=[ 84], | 99.00th=[ 148], 99.50th=[ 167], 99.90th=[ 279], 99.95th=[ 279], | 99.99th=[ 279] bw ( KiB/s): min= 31, max= 287, per=26.90%, avg=111.90, stdev=65.89, samples=105 iops : min= 1, max= 17, avg= 6.21, stdev= 4.23, samples=105 write: IOPS=6, BW=110KiB/s (113kB/s)(6256KiB/56712msec); 0 zone resets clat (msec): min=39, max=313, avg=115.13, stdev=43.59 lat (msec): min=39, max=313, avg=115.13, stdev=43.59 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 58], 10.00th=[ 66], 20.00th=[ 80], | 30.00th=[ 89], 40.00th=[ 100], 50.00th=[ 110], 60.00th=[ 120], | 70.00th=[ 130], 80.00th=[ 146], 90.00th=[ 171], 95.00th=[ 190], | 99.00th=[ 268], 99.50th=[ 305], 99.90th=[ 313], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 31, max= 191, per=25.04%, avg=109.70, stdev=37.45, samples=112 iops : min= 1, max= 11, avg= 6.06, stdev= 2.39, samples=112 lat (msec) : 10=3.26%, 20=19.79%, 50=19.40%, 100=25.52%, 250=31.25% lat (msec) : 500=0.78% cpu : usr=0.05%, sys=1.46%, ctx=1267, 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=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=417KiB/s (427kB/s), 100KiB/s-112KiB/s (103kB/s-115kB/s), io=23.4MiB (24.5MB), run=55761-57462msec WRITE: bw=439KiB/s (449kB/s), 108KiB/s-114KiB/s (111kB/s-117kB/s), io=24.6MiB (25.8MB), run=55761-57462msec 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=145422: Thu Aug 27 05:51:32 2026 read: IOPS=2, BW=2061KiB/s (2110kB/s)(7168KiB/3478msec) clat (usec): min=476, max=253913, avg=138786.42, stdev=99889.75 lat (usec): min=478, max=253916, avg=138787.86, stdev=99890.11 clat percentiles (usec): | 1.00th=[ 478], 5.00th=[ 478], 10.00th=[ 478], 20.00th=[ 5276], | 30.00th=[145753], 40.00th=[145753], 50.00th=[162530], 60.00th=[177210], | 70.00th=[177210], 80.00th=[225444], 90.00th=[254804], 95.00th=[254804], | 99.00th=[254804], 99.50th=[254804], 99.90th=[254804], 99.95th=[254804], | 99.99th=[254804] bw ( KiB/s): min= 1841, max= 4071, per=63.02%, avg=2958.75, stdev=1202.14, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 write: IOPS=1, BW=1472KiB/s (1507kB/s)(5120KiB/3478msec); 0 zone resets clat (msec): min=282, max=746, avg=448.95, stdev=217.62 lat (msec): min=282, max=746, avg=449.03, stdev=217.63 clat percentiles (msec): | 1.00th=[ 284], 5.00th=[ 284], 10.00th=[ 284], 20.00th=[ 284], | 30.00th=[ 296], 40.00th=[ 296], 50.00th=[ 305], 60.00th=[ 305], | 70.00th=[ 617], 80.00th=[ 617], 90.00th=[ 743], 95.00th=[ 743], | 99.00th=[ 743], 99.50th=[ 743], 99.90th=[ 743], 99.95th=[ 743], | 99.99th=[ 743] bw ( KiB/s): min= 1961, max= 2003, per=30.30%, avg=1991.75, stdev=20.55, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 lat (usec) : 500=8.33% lat (msec) : 10=8.33%, 250=33.33%, 500=33.33%, 750=16.67% cpu : usr=0.00%, sys=16.08%, ctx=250, 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=145425: Thu Aug 27 05:51:32 2026 read: IOPS=0, BW=470KiB/s (481kB/s)(2048KiB/4362msec) clat (msec): min=236, max=503, avg=370.22, stdev=188.99 lat (msec): min=236, max=503, avg=370.22, stdev=188.99 clat percentiles (msec): | 1.00th=[ 236], 5.00th=[ 236], 10.00th=[ 236], 20.00th=[ 236], | 30.00th=[ 236], 40.00th=[ 236], 50.00th=[ 236], 60.00th=[ 506], | 70.00th=[ 506], 80.00th=[ 506], 90.00th=[ 506], 95.00th=[ 506], | 99.00th=[ 506], 99.50th=[ 506], 99.90th=[ 506], 99.95th=[ 506], | 99.99th=[ 506] bw ( KiB/s): min= 1848, max= 2000, per=40.98%, avg=1924.00, stdev=107.48, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2348KiB/s (2404kB/s)(10.0MiB/4362msec); 0 zone resets clat (msec): min=61, max=730, avg=339.23, stdev=228.69 lat (msec): min=61, max=730, avg=339.36, stdev=228.73 clat percentiles (msec): | 1.00th=[ 62], 5.00th=[ 62], 10.00th=[ 62], 20.00th=[ 81], | 30.00th=[ 155], 40.00th=[ 207], 50.00th=[ 224], 60.00th=[ 380], | 70.00th=[ 443], 80.00th=[ 535], 90.00th=[ 575], 95.00th=[ 735], | 99.00th=[ 735], 99.50th=[ 735], 99.90th=[ 735], 99.95th=[ 735], | 99.99th=[ 735] bw ( KiB/s): min= 2003, max= 6011, per=55.42%, avg=3643.00, stdev=1678.54, samples=5 iops : min= 1, max= 5, avg= 2.60, stdev= 1.67, samples=5 lat (msec) : 100=16.67%, 250=33.33%, 500=16.67%, 750=33.33% cpu : usr=0.00%, sys=12.63%, ctx=191, 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=145427: Thu Aug 27 05:51:32 2026 read: IOPS=1, BW=1815KiB/s (1858kB/s)(6144KiB/3386msec) clat (msec): min=74, max=272, avg=209.09, stdev=74.18 lat (msec): min=74, max=272, avg=209.09, stdev=74.18 clat percentiles (msec): | 1.00th=[ 75], 5.00th=[ 75], 10.00th=[ 75], 20.00th=[ 178], | 30.00th=[ 178], 40.00th=[ 222], 50.00th=[ 222], 60.00th=[ 249], | 70.00th=[ 262], 80.00th=[ 262], 90.00th=[ 271], 95.00th=[ 271], | 99.00th=[ 271], 99.50th=[ 271], 99.90th=[ 271], 99.95th=[ 271], | 99.99th=[ 271] bw ( KiB/s): min= 2000, max= 3923, per=52.87%, avg=2482.25, stdev=960.50, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1815KiB/s (1858kB/s)(6144KiB/3386msec); 0 zone resets clat (msec): min=104, max=656, avg=344.67, stdev=203.00 lat (msec): min=104, max=656, avg=344.75, stdev=203.02 clat percentiles (msec): | 1.00th=[ 105], 5.00th=[ 105], 10.00th=[ 105], 20.00th=[ 228], | 30.00th=[ 228], 40.00th=[ 253], 50.00th=[ 253], 60.00th=[ 317], | 70.00th=[ 514], 80.00th=[ 514], 90.00th=[ 659], 95.00th=[ 659], | 99.00th=[ 659], 99.50th=[ 659], 99.90th=[ 659], 99.95th=[ 659], | 99.99th=[ 659] bw ( KiB/s): min= 2000, max= 3723, per=37.13%, avg=2440.25, stdev=855.31, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (msec) : 100=8.33%, 250=41.67%, 500=33.33%, 750=16.67% cpu : usr=0.00%, sys=16.01%, ctx=178, 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=145429: Thu Aug 27 05:51:32 2026 read: IOPS=1, BW=1179KiB/s (1207kB/s)(5120KiB/4342msec) clat (usec): min=1158, max=290194, avg=110683.54, stdev=120372.36 lat (usec): min=1160, max=290195, avg=110684.81, stdev=120372.13 clat percentiles (usec): | 1.00th=[ 1156], 5.00th=[ 1156], 10.00th=[ 1156], 20.00th=[ 1156], | 30.00th=[ 1237], 40.00th=[ 1237], 50.00th=[108528], 60.00th=[108528], | 70.00th=[152044], 80.00th=[152044], 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= 4000, max= 4079, per=86.04%, avg=4039.50, stdev=55.86, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1651KiB/s (1690kB/s)(7168KiB/4342msec); 0 zone resets clat (msec): min=170, max=1177, avg=505.43, stdev=375.17 lat (msec): min=170, max=1177, avg=505.52, stdev=375.16 clat percentiles (msec): | 1.00th=[ 171], 5.00th=[ 171], 10.00th=[ 171], 20.00th=[ 232], | 30.00th=[ 236], 40.00th=[ 236], 50.00th=[ 321], 60.00th=[ 600], | 70.00th=[ 600], 80.00th=[ 802], 90.00th=[ 1183], 95.00th=[ 1183], | 99.00th=[ 1183], 99.50th=[ 1183], 99.90th=[ 1183], 99.95th=[ 1183], | 99.99th=[ 1183] bw ( KiB/s): min= 1961, max= 4087, per=45.85%, avg=3013.75, stdev=1193.65, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 lat (msec) : 2=16.67%, 250=41.67%, 500=16.67%, 750=8.33%, 1000=8.33% lat (msec) : 2000=8.33% cpu : usr=0.00%, sys=13.31%, ctx=178, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=4695KiB/s (4808kB/s), 470KiB/s-2061KiB/s (481kB/s-2110kB/s), io=20.0MiB (20.0MB), run=3386-4362msec WRITE: bw=6573KiB/s (6731kB/s), 1472KiB/s-2348KiB/s (1507kB/s-2404kB/s), io=28.0MiB (29.4MB), run=3386-4362msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145423: Thu Aug 27 05:51:33 2026 read: IOPS=1, BW=1737KiB/s (1779kB/s)(7168KiB/4126msec) clat (msec): min=84, max=281, avg=146.90, stdev=65.27 lat (msec): min=84, max=281, avg=146.90, stdev=65.27 clat percentiles (msec): | 1.00th=[ 85], 5.00th=[ 85], 10.00th=[ 85], 20.00th=[ 106], | 30.00th=[ 112], 40.00th=[ 112], 50.00th=[ 131], 60.00th=[ 157], | 70.00th=[ 157], 80.00th=[ 159], 90.00th=[ 284], 95.00th=[ 284], | 99.00th=[ 284], 99.50th=[ 284], 99.90th=[ 284], 99.95th=[ 284], | 99.99th=[ 284] bw ( KiB/s): min= 1935, max= 5278, per=89.13%, avg=3722.00, stdev=1683.43, samples=3 iops : min= 1, max= 5, avg= 3.00, stdev= 2.00, samples=3 write: IOPS=1, BW=1241KiB/s (1271kB/s)(5120KiB/4126msec); 0 zone resets clat (msec): min=245, max=896, avg=614.13, stdev=237.46 lat (msec): min=245, max=896, avg=614.26, stdev=237.49 clat percentiles (msec): | 1.00th=[ 245], 5.00th=[ 245], 10.00th=[ 245], 20.00th=[ 245], | 30.00th=[ 600], 40.00th=[ 600], 50.00th=[ 617], 60.00th=[ 617], | 70.00th=[ 709], 80.00th=[ 709], 90.00th=[ 894], 95.00th=[ 894], | 99.00th=[ 894], 99.50th=[ 894], 99.90th=[ 894], 99.95th=[ 894], | 99.99th=[ 894] bw ( KiB/s): min= 1935, max= 2039, per=34.28%, avg=2004.00, stdev=48.15, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 lat (msec) : 100=8.33%, 250=50.00%, 500=8.33%, 750=25.00%, 1000=8.33% cpu : usr=0.00%, sys=3.68%, ctx=103, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145424: Thu Aug 27 05:51:33 2026 read: IOPS=0, BW=418KiB/s (428kB/s)(2048KiB/4904msec) clat (msec): min=213, max=577, avg=395.13, stdev=257.50 lat (msec): min=213, max=577, avg=395.13, stdev=257.50 clat percentiles (msec): | 1.00th=[ 213], 5.00th=[ 213], 10.00th=[ 213], 20.00th=[ 213], | 30.00th=[ 213], 40.00th=[ 213], 50.00th=[ 213], 60.00th=[ 575], | 70.00th=[ 575], 80.00th=[ 575], 90.00th=[ 575], 95.00th=[ 575], | 99.00th=[ 575], 99.50th=[ 575], 99.90th=[ 575], 99.95th=[ 575], | 99.99th=[ 575] bw ( KiB/s): min= 1935, max= 2039, per=47.58%, avg=1987.00, stdev=73.54, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2088KiB/s (2138kB/s)(10.0MiB/4904msec); 0 zone resets clat (msec): min=84, max=724, avg=396.50, stdev=210.53 lat (msec): min=84, max=724, avg=396.58, stdev=210.52 clat percentiles (msec): | 1.00th=[ 85], 5.00th=[ 85], 10.00th=[ 85], 20.00th=[ 123], | 30.00th=[ 199], 40.00th=[ 330], 50.00th=[ 443], 60.00th=[ 464], | 70.00th=[ 485], 80.00th=[ 493], 90.00th=[ 625], 95.00th=[ 726], | 99.00th=[ 726], 99.50th=[ 726], 99.90th=[ 726], 99.95th=[ 726], | 99.99th=[ 726] bw ( KiB/s): min= 1896, max= 4079, per=38.90%, avg=2274.29, stdev=797.14, samples=7 iops : min= 1, max= 3, avg= 1.29, stdev= 0.76, samples=7 lat (msec) : 100=8.33%, 250=25.00%, 500=41.67%, 750=25.00% cpu : usr=0.00%, sys=4.87%, ctx=80, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145426: Thu Aug 27 05:51:33 2026 read: IOPS=1, BW=1415KiB/s (1449kB/s)(6144KiB/4341msec) clat (msec): min=132, max=478, avg=276.57, stdev=121.10 lat (msec): min=132, max=478, avg=276.57, stdev=121.10 clat percentiles (msec): | 1.00th=[ 133], 5.00th=[ 133], 10.00th=[ 133], 20.00th=[ 213], | 30.00th=[ 213], 40.00th=[ 234], 50.00th=[ 234], 60.00th=[ 255], | 70.00th=[ 351], 80.00th=[ 351], 90.00th=[ 481], 95.00th=[ 481], | 99.00th=[ 481], 99.50th=[ 481], 99.90th=[ 481], 99.95th=[ 481], | 99.99th=[ 481] bw ( KiB/s): min= 1896, max= 4015, per=59.49%, avg=2484.50, stdev=1021.99, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1415KiB/s (1449kB/s)(6144KiB/4341msec); 0 zone resets clat (msec): min=179, max=583, avg=402.80, stdev=130.83 lat (msec): min=179, max=583, avg=403.04, stdev=130.96 clat percentiles (msec): | 1.00th=[ 180], 5.00th=[ 180], 10.00th=[ 180], 20.00th=[ 372], | 30.00th=[ 372], 40.00th=[ 422], 50.00th=[ 422], 60.00th=[ 426], | 70.00th=[ 439], 80.00th=[ 439], 90.00th=[ 584], 95.00th=[ 584], | 99.00th=[ 584], 99.50th=[ 584], 99.90th=[ 584], 99.95th=[ 584], | 99.99th=[ 584] bw ( KiB/s): min= 1896, max= 4079, per=40.64%, avg=2375.60, stdev=952.96, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (msec) : 250=33.33%, 500=58.33%, 750=8.33% cpu : usr=0.00%, sys=4.77%, ctx=90, 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=145428: Thu Aug 27 05:51:33 2026 read: IOPS=1, BW=1106KiB/s (1133kB/s)(5120KiB/4629msec) clat (msec): min=43, max=941, avg=356.76, stdev=352.81 lat (msec): min=43, max=941, avg=356.76, stdev=352.81 clat percentiles (msec): | 1.00th=[ 44], 5.00th=[ 44], 10.00th=[ 44], 20.00th=[ 44], | 30.00th=[ 127], 40.00th=[ 127], 50.00th=[ 292], 60.00th=[ 292], | 70.00th=[ 380], 80.00th=[ 380], 90.00th=[ 944], 95.00th=[ 944], | 99.00th=[ 944], 99.50th=[ 944], 99.90th=[ 944], 99.95th=[ 944], | 99.99th=[ 944] bw ( KiB/s): min= 1896, max= 3984, per=63.18%, avg=2638.33, stdev=1167.45, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=1, BW=1548KiB/s (1586kB/s)(7168KiB/4629msec); 0 zone resets clat (msec): min=77, max=825, avg=386.39, stdev=285.86 lat (msec): min=78, max=825, avg=386.57, stdev=285.79 clat percentiles (msec): | 1.00th=[ 79], 5.00th=[ 79], 10.00th=[ 79], 20.00th=[ 171], | 30.00th=[ 253], 40.00th=[ 253], 50.00th=[ 257], 60.00th=[ 388], | 70.00th=[ 388], 80.00th=[ 735], 90.00th=[ 827], 95.00th=[ 827], | 99.00th=[ 827], 99.50th=[ 827], 99.90th=[ 827], 99.95th=[ 827], | 99.99th=[ 827] bw ( KiB/s): min= 1896, max= 3953, per=44.98%, avg=2629.33, stdev=1148.56, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 50=8.33%, 100=8.33%, 250=16.67%, 500=41.67%, 750=8.33% lat (msec) : 1000=16.67% cpu : usr=0.04%, sys=5.21%, ctx=114, 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=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=4176KiB/s (4276kB/s), 418KiB/s-1737KiB/s (428kB/s-1779kB/s), io=20.0MiB (20.0MB), run=4126-4904msec WRITE: bw=5847KiB/s (5987kB/s), 1241KiB/s-2088KiB/s (1271kB/s-2138kB/s), io=28.0MiB (29.4MB), run=4126-4904msec 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=145435: Thu Aug 27 05:51:45 2026 read: IOPS=0, BW=3862KiB/s (3954kB/s)(12.0MiB/3182msec) clat (msec): min=819, max=1172, avg=1035.20, stdev=189.33 lat (msec): min=819, max=1172, avg=1035.20, stdev=189.33 clat percentiles (msec): | 1.00th=[ 818], 5.00th=[ 818], 10.00th=[ 818], 20.00th=[ 818], | 30.00th=[ 818], 40.00th=[ 1116], 50.00th=[ 1116], 60.00th=[ 1116], | 70.00th=[ 1167], 80.00th=[ 1167], 90.00th=[ 1167], 95.00th=[ 1167], | 99.00th=[ 1167], 99.50th=[ 1167], 99.90th=[ 1167], 99.95th=[ 1167], | 99.99th=[ 1167] bw ( KiB/s): min= 8110, max= 8159, per=100.00%, avg=8134.50, stdev=34.65, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=33.33%, 2000=66.67% cpu : usr=0.00%, sys=10.28%, ctx=199, 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=145436: Thu Aug 27 05:51:45 2026 read: IOPS=0, BW=1295KiB/s (1326kB/s)(4096KiB/3162msec) clat (nsec): min=989500k, max=989500k, avg=989499899.00, stdev= 0.00 lat (nsec): min=989502k, max=989502k, avg=989501870.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 986], 5.00th=[ 986], 10.00th=[ 986], 20.00th=[ 986], | 30.00th=[ 986], 40.00th=[ 986], 50.00th=[ 986], 60.00th=[ 986], | 70.00th=[ 986], 80.00th=[ 986], 90.00th=[ 986], 95.00th=[ 986], | 99.00th=[ 986], 99.50th=[ 986], 99.90th=[ 986], 99.95th=[ 986], | 99.99th=[ 986] bw ( KiB/s): min= 8159, max= 8159, per=100.00%, avg=8159.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2591KiB/s (2653kB/s)(8192KiB/3162msec); 0 zone resets clat (msec): min=416, max=1503, avg=959.94, stdev=768.22 lat (msec): min=417, max=1503, avg=960.29, stdev=768.21 clat percentiles (msec): | 1.00th=[ 418], 5.00th=[ 418], 10.00th=[ 418], 20.00th=[ 418], | 30.00th=[ 418], 40.00th=[ 418], 50.00th=[ 418], 60.00th=[ 1502], | 70.00th=[ 1502], 80.00th=[ 1502], 90.00th=[ 1502], 95.00th=[ 1502], | 99.00th=[ 1502], 99.50th=[ 1502], 99.90th=[ 1502], 99.95th=[ 1502], | 99.99th=[ 1502] bw ( KiB/s): min= 8143, max= 8143, per=84.69%, avg=8143.00, 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=4.33%, ctx=82, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145437: Thu Aug 27 05:51:45 2026 write: IOPS=0, BW=3606KiB/s (3692kB/s)(12.0MiB/3408msec); 0 zone resets clat (msec): min=676, max=1366, avg=1061.43, stdev=351.75 lat (msec): min=676, max=1366, avg=1061.84, stdev=351.80 clat percentiles (msec): | 1.00th=[ 676], 5.00th=[ 676], 10.00th=[ 676], 20.00th=[ 676], | 30.00th=[ 676], 40.00th=[ 1150], 50.00th=[ 1150], 60.00th=[ 1150], | 70.00th=[ 1368], 80.00th=[ 1368], 90.00th=[ 1368], 95.00th=[ 1368], | 99.00th=[ 1368], 99.50th=[ 1368], 99.90th=[ 1368], 99.95th=[ 1368], | 99.99th=[ 1368] bw ( KiB/s): min= 8047, max= 8143, per=84.19%, avg=8095.00, stdev=67.88, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 2000=66.67% cpu : usr=0.00%, sys=6.19%, ctx=88, 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=145438: Thu Aug 27 05:51:45 2026 write: IOPS=1, BW=4449KiB/s (4556kB/s)(12.0MiB/2762msec); 0 zone resets clat (msec): min=289, max=2003, avg=905.17, stdev=953.76 lat (msec): min=289, max=2004, avg=905.65, stdev=953.74 clat percentiles (msec): | 1.00th=[ 288], 5.00th=[ 288], 10.00th=[ 288], 20.00th=[ 288], | 30.00th=[ 288], 40.00th=[ 422], 50.00th=[ 422], 60.00th=[ 422], | 70.00th=[ 2005], 80.00th=[ 2005], 90.00th=[ 2005], 95.00th=[ 2005], | 99.00th=[ 2005], 99.50th=[ 2005], 99.90th=[ 2005], 99.95th=[ 2005], | 99.99th=[ 2005] bw ( KiB/s): min= 6660, max= 8159, per=77.06%, avg=7409.50, stdev=1059.95, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=66.67%, >=2000=33.33% cpu : usr=0.07%, sys=3.66%, ctx=38, 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=5149KiB/s (5273kB/s), 1295KiB/s-3862KiB/s (1326kB/s-3954kB/s), io=16.0MiB (16.8MB), run=3162-3182msec WRITE: bw=9615KiB/s (9846kB/s), 2591KiB/s-4449KiB/s (2653kB/s-4556kB/s), io=32.0MiB (33.6MB), run=2762-3408msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145440: Thu Aug 27 05:51:46 2026 read: IOPS=0, BW=3693KiB/s (3782kB/s)(12.0MiB/3327msec) clat (msec): min=176, max=1623, avg=1064.83, stdev=777.80 lat (msec): min=176, max=1623, avg=1064.83, stdev=777.80 clat percentiles (msec): | 1.00th=[ 178], 5.00th=[ 178], 10.00th=[ 178], 20.00th=[ 178], | 30.00th=[ 178], 40.00th=[ 1401], 50.00th=[ 1401], 60.00th=[ 1401], | 70.00th=[ 1620], 80.00th=[ 1620], 90.00th=[ 1620], 95.00th=[ 1620], | 99.00th=[ 1620], 99.50th=[ 1620], 99.90th=[ 1620], 99.95th=[ 1620], | 99.99th=[ 1620] bw ( KiB/s): min= 8031, max= 8031, per=100.00%, avg=8031.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 2000=66.67% cpu : usr=0.00%, sys=2.89%, ctx=58, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=145441: Thu Aug 27 05:51:46 2026 read: IOPS=0, BW=1236KiB/s (1266kB/s)(4096KiB/3314msec) clat (nsec): min=1590.1M, max=1590.1M, avg=1590148710.00, stdev= 0.00 lat (nsec): min=1590.2M, max=1590.2M, avg=1590151595.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1586], 5.00th=[ 1586], 10.00th=[ 1586], 20.00th=[ 1586], | 30.00th=[ 1586], 40.00th=[ 1586], 50.00th=[ 1586], 60.00th=[ 1586], | 70.00th=[ 1586], 80.00th=[ 1586], 90.00th=[ 1586], 95.00th=[ 1586], | 99.00th=[ 1586], 99.50th=[ 1586], 99.90th=[ 1586], 99.95th=[ 1586], | 99.99th=[ 1586] 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 write: IOPS=0, BW=2472KiB/s (2531kB/s)(8192KiB/3314msec); 0 zone resets clat (msec): min=500, max=900, avg=700.28, stdev=282.62 lat (msec): min=500, max=900, avg=700.70, stdev=282.65 clat percentiles (msec): | 1.00th=[ 502], 5.00th=[ 502], 10.00th=[ 502], 20.00th=[ 502], | 30.00th=[ 502], 40.00th=[ 502], 50.00th=[ 502], 60.00th=[ 902], | 70.00th=[ 902], 80.00th=[ 902], 90.00th=[ 902], 95.00th=[ 902], | 99.00th=[ 902], 99.50th=[ 902], 99.90th=[ 902], 99.95th=[ 902], | 99.99th=[ 902] bw ( KiB/s): min= 7907, max= 7907, per=88.45%, avg=7907.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=2.96%, ctx=48, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145442: Thu Aug 27 05:51:46 2026 write: IOPS=0, BW=3353KiB/s (3433kB/s)(12.0MiB/3665msec); 0 zone resets clat (msec): min=170, max=2408, avg=1082.52, stdev=1175.12 lat (msec): min=170, max=2409, avg=1082.95, stdev=1175.15 clat percentiles (msec): | 1.00th=[ 171], 5.00th=[ 171], 10.00th=[ 171], 20.00th=[ 171], | 30.00th=[ 171], 40.00th=[ 667], 50.00th=[ 667], 60.00th=[ 667], | 70.00th=[ 2400], 80.00th=[ 2400], 90.00th=[ 2400], 95.00th=[ 2400], | 99.00th=[ 2400], 99.50th=[ 2400], 99.90th=[ 2400], 99.95th=[ 2400], | 99.99th=[ 2400] bw ( KiB/s): min= 8094, max= 8094, per=90.54%, avg=8094.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 750=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=2.51%, ctx=38, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145443: Thu Aug 27 05:51:46 2026 write: IOPS=0, BW=3959KiB/s (4054kB/s)(12.0MiB/3104msec); 0 zone resets clat (msec): min=468, max=1763, avg=919.94, stdev=731.57 lat (msec): min=468, max=1764, avg=920.38, stdev=731.55 clat percentiles (msec): | 1.00th=[ 468], 5.00th=[ 468], 10.00th=[ 468], 20.00th=[ 468], | 30.00th=[ 468], 40.00th=[ 527], 50.00th=[ 527], 60.00th=[ 527], | 70.00th=[ 1770], 80.00th=[ 1770], 90.00th=[ 1770], 95.00th=[ 1770], | 99.00th=[ 1770], 99.50th=[ 1770], 99.90th=[ 1770], 99.95th=[ 1770], | 99.99th=[ 1770] bw ( KiB/s): min= 8047, max= 8175, per=90.73%, avg=8111.00, stdev=90.51, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.00%, sys=3.22%, ctx=49, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=4925KiB/s (5043kB/s), 1236KiB/s-3693KiB/s (1266kB/s-3782kB/s), io=16.0MiB (16.8MB), run=3314-3327msec WRITE: bw=8941KiB/s (9155kB/s), 2472KiB/s-3959KiB/s (2531kB/s-4054kB/s), io=32.0MiB (33.6MB), run=3104-3665msec