== sanity test 398b: DIO and buffer IO race ============== 17:02:44 (1775768564) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 5.29116 s, 9.5 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=148904: Thu Apr 9 17:05:07 2026 read: IOPS=12, BW=48.2KiB/s (49.4kB/s)(5992KiB/124325msec) clat (usec): min=23, max=669437, avg=40826.81, stdev=36107.45 lat (usec): min=23, max=669438, avg=40833.44, stdev=36106.13 clat percentiles (usec): | 1.00th=[ 41], 5.00th=[ 55], 10.00th=[ 67], 20.00th=[ 16450], | 30.00th=[ 22414], 40.00th=[ 27919], 50.00th=[ 33817], 60.00th=[ 41157], | 70.00th=[ 51119], 80.00th=[ 62129], 90.00th=[ 82314], 95.00th=[101188], | 99.00th=[149947], 99.50th=[175113], 99.90th=[291505], 99.95th=[666895], | 99.99th=[666895] bw ( KiB/s): min= 7, max= 119, per=25.02%, avg=48.03, stdev=22.44, samples=243 iops : min= 1, max= 29, avg=11.37, stdev= 5.65, samples=243 write: IOPS=12, BW=50.6KiB/s (51.9kB/s)(6296KiB/124325msec); 0 zone resets clat (usec): min=778, max=414688, avg=39913.57, stdev=41967.10 lat (usec): min=779, max=414689, avg=39915.15, stdev=41967.32 clat percentiles (usec): | 1.00th=[ 1123], 5.00th=[ 1254], 10.00th=[ 1500], 20.00th=[ 3884], | 30.00th=[ 8586], 40.00th=[ 17695], 50.00th=[ 29230], 60.00th=[ 40109], | 70.00th=[ 52691], 80.00th=[ 68682], 90.00th=[ 96994], 95.00th=[117965], | 99.00th=[181404], 99.50th=[193987], 99.90th=[333448], 99.95th=[413139], | 99.99th=[413139] bw ( KiB/s): min= 7, max= 159, per=24.99%, avg=50.23, stdev=25.77, samples=244 iops : min= 1, max= 39, avg=11.93, stdev= 6.45, samples=244 lat (usec) : 50=1.20%, 100=4.59%, 250=0.23%, 500=0.07%, 1000=0.23% lat (msec) : 2=6.58%, 4=3.91%, 10=6.38%, 20=10.77%, 50=34.57% lat (msec) : 100=24.22%, 250=7.06%, 500=0.16%, 750=0.03% cpu : usr=0.07%, sys=5.03%, ctx=6390, 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=148905: Thu Apr 9 17:05:07 2026 read: IOPS=12, BW=48.0KiB/s (49.2kB/s)(5940KiB/123696msec) clat (usec): min=28, max=464847, avg=39832.96, stdev=33895.86 lat (usec): min=29, max=464848, avg=39834.43, stdev=33896.03 clat percentiles (usec): | 1.00th=[ 45], 5.00th=[ 58], 10.00th=[ 78], 20.00th=[ 16581], | 30.00th=[ 22152], 40.00th=[ 27657], 50.00th=[ 33162], 60.00th=[ 40633], | 70.00th=[ 49546], 80.00th=[ 58983], 90.00th=[ 79168], 95.00th=[ 99091], | 99.00th=[139461], 99.50th=[179307], 99.90th=[299893], 99.95th=[463471], | 99.99th=[463471] bw ( KiB/s): min= 7, max= 119, per=24.86%, avg=47.72, stdev=23.09, samples=243 iops : min= 1, max= 29, avg=11.31, stdev= 5.81, samples=243 write: IOPS=12, BW=51.3KiB/s (52.6kB/s)(6348KiB/123696msec); 0 zone resets clat (usec): min=855, max=664124, avg=40451.06, stdev=45865.26 lat (usec): min=857, max=664126, avg=40456.69, stdev=45865.81 clat percentiles (usec): | 1.00th=[ 1139], 5.00th=[ 1270], 10.00th=[ 1418], 20.00th=[ 3359], | 30.00th=[ 7439], 40.00th=[ 16909], 50.00th=[ 28967], 60.00th=[ 40109], | 70.00th=[ 52691], 80.00th=[ 68682], 90.00th=[ 94897], 95.00th=[122160], | 99.00th=[191890], 99.50th=[242222], 99.90th=[404751], 99.95th=[666895], | 99.99th=[666895] bw ( KiB/s): min= 7, max= 175, per=25.42%, avg=51.09, stdev=25.79, samples=243 iops : min= 1, max= 43, avg=12.14, stdev= 6.49, samples=243 lat (usec) : 50=0.78%, 100=4.59%, 250=0.49%, 500=0.10%, 750=0.03% lat (usec) : 1000=0.16% lat (msec) : 2=7.03%, 4=4.30%, 10=6.77%, 20=10.16%, 50=34.83% lat (msec) : 100=23.86%, 250=6.61%, 500=0.26%, 750=0.03% cpu : usr=0.07%, sys=5.13%, ctx=6350, 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=148906: Thu Apr 9 17:05:07 2026 read: IOPS=12, BW=48.9KiB/s (50.1kB/s)(6028KiB/123212msec) clat (usec): min=20, max=383448, avg=38357.71, stdev=31814.23 lat (usec): min=21, max=383450, avg=38364.89, stdev=31813.89 clat percentiles (usec): | 1.00th=[ 45], 5.00th=[ 57], 10.00th=[ 75], 20.00th=[ 15795], | 30.00th=[ 22414], 40.00th=[ 27132], 50.00th=[ 32113], 60.00th=[ 39060], | 70.00th=[ 47449], 80.00th=[ 57410], 90.00th=[ 74974], 95.00th=[ 90702], | 99.00th=[131597], 99.50th=[181404], 99.90th=[320865], 99.95th=[383779], | 99.99th=[383779] bw ( KiB/s): min= 7, max= 135, per=25.44%, avg=48.85, stdev=24.60, samples=241 iops : min= 1, max= 33, avg=11.58, stdev= 6.19, samples=241 write: IOPS=12, BW=50.8KiB/s (52.0kB/s)(6260KiB/123212msec); 0 zone resets clat (usec): min=892, max=736691, avg=41591.87, stdev=45556.49 lat (usec): min=894, max=736693, avg=41594.58, stdev=45559.46 clat percentiles (usec): | 1.00th=[ 1139], 5.00th=[ 1270], 10.00th=[ 1483], 20.00th=[ 3589], | 30.00th=[ 8455], 40.00th=[ 18744], 50.00th=[ 30540], 60.00th=[ 42206], | 70.00th=[ 54789], 80.00th=[ 70779], 90.00th=[ 96994], 95.00th=[123208], | 99.00th=[191890], 99.50th=[206570], 99.90th=[283116], 99.95th=[734004], | 99.99th=[734004] bw ( KiB/s): min= 7, max= 151, per=25.12%, avg=50.49, stdev=21.76, samples=242 iops : min= 1, max= 37, avg=12.00, stdev= 5.46, samples=242 lat (usec) : 50=0.88%, 100=4.75%, 250=0.26%, 500=0.13%, 1000=0.16% lat (msec) : 2=6.90%, 4=3.94%, 10=5.99%, 20=10.64%, 50=35.61% lat (msec) : 100=24.41%, 250=6.12%, 500=0.16%, 750=0.03% cpu : usr=0.06%, sys=5.02%, ctx=6418, 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=148907: Thu Apr 9 17:05:07 2026 read: IOPS=12, BW=48.6KiB/s (49.7kB/s)(6052KiB/124621msec) clat (usec): min=22, max=264607, avg=38724.50, stdev=33042.32 lat (usec): min=22, max=264609, avg=38727.71, stdev=33041.24 clat percentiles (usec): | 1.00th=[ 44], 5.00th=[ 56], 10.00th=[ 70], 20.00th=[ 14877], | 30.00th=[ 20579], 40.00th=[ 25297], 50.00th=[ 30540], 60.00th=[ 38011], | 70.00th=[ 47449], 80.00th=[ 58983], 90.00th=[ 83362], 95.00th=[104334], | 99.00th=[147850], 99.50th=[160433], 99.90th=[250610], 99.95th=[265290], | 99.99th=[265290] bw ( KiB/s): min= 7, max= 143, per=25.12%, avg=48.24, stdev=23.21, samples=242 iops : min= 1, max= 35, avg=11.43, stdev= 5.82, samples=242 write: IOPS=12, BW=50.0KiB/s (51.2kB/s)(6236KiB/124621msec); 0 zone resets clat (usec): min=779, max=664159, avg=42139.63, stdev=47281.97 lat (usec): min=779, max=664160, avg=42142.91, stdev=47282.62 clat percentiles (usec): | 1.00th=[ 1139], 5.00th=[ 1287], 10.00th=[ 1631], 20.00th=[ 4146], | 30.00th=[ 8029], 40.00th=[ 17433], 50.00th=[ 28967], 60.00th=[ 41157], | 70.00th=[ 53216], 80.00th=[ 72877], 90.00th=[103285], 95.00th=[130548], | 99.00th=[198181], 99.50th=[225444], 99.90th=[383779], 99.95th=[666895], | 99.99th=[666895] bw ( KiB/s): min= 7, max= 141, per=24.51%, avg=49.26, stdev=23.78, samples=245 iops : min= 1, max= 35, avg=11.69, stdev= 5.98, samples=245 lat (usec) : 50=1.07%, 100=5.01%, 250=0.33%, 500=0.13%, 750=0.03% lat (usec) : 1000=0.20% lat (msec) : 2=5.66%, 4=4.13%, 10=7.19%, 20=11.95%, 50=34.64% lat (msec) : 100=21.55%, 250=7.88%, 500=0.20%, 750=0.03% cpu : usr=0.08%, sys=5.00%, ctx=6364, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=193KiB/s (197kB/s), 48.0KiB/s-48.9KiB/s (49.2kB/s-50.1kB/s), io=23.4MiB (24.6MB), run=123212-124621msec WRITE: bw=202KiB/s (207kB/s), 50.0KiB/s-51.3KiB/s (51.2kB/s-52.6kB/s), io=24.6MiB (25.7MB), run=123212-124621msec rand-rw: (groupid=0, jobs=1): err= 0: pid=148900: Thu Apr 9 17:07:42 2026 read: IOPS=5, BW=21.4KiB/s (21.0kB/s)(5992KiB/279479msec) clat (msec): min=4, max=706, avg=37.23, stdev=36.79 lat (msec): min=4, max=706, avg=37.23, stdev=36.80 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 10], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 20], 40.00th=[ 24], 50.00th=[ 28], 60.00th=[ 33], | 70.00th=[ 41], 80.00th=[ 51], 90.00th=[ 69], 95.00th=[ 93], | 99.00th=[ 161], 99.50th=[ 209], 99.90th=[ 380], 99.95th=[ 709], | 99.99th=[ 709] bw ( KiB/s): min= 7, max= 94, per=28.79%, avg=24.47, stdev=16.32, samples=472 iops : min= 1, max= 23, avg= 5.49, stdev= 4.13, samples=472 write: IOPS=5, BW=22.5KiB/s (23.1kB/s)(6296KiB/279479msec); 0 zone resets clat (msec): min=39, max=758, avg=141.93, stdev=69.77 lat (msec): min=39, max=758, avg=141.93, stdev=69.77 clat percentiles (msec): | 1.00th=[ 54], 5.00th=[ 67], 10.00th=[ 78], 20.00th=[ 90], | 30.00th=[ 103], 40.00th=[ 113], 50.00th=[ 125], 60.00th=[ 138], | 70.00th=[ 157], 80.00th=[ 186], 90.00th=[ 230], 95.00th=[ 271], | 99.00th=[ 397], 99.50th=[ 451], 99.90th=[ 676], 99.95th=[ 760], | 99.99th=[ 760] bw ( KiB/s): min= 7, max= 55, per=24.93%, avg=22.18, stdev= 9.17, samples=545 iops : min= 1, max= 13, avg= 4.91, stdev= 2.33, samples=545 lat (msec) : 10=2.57%, 20=12.79%, 50=23.76%, 100=21.88%, 250=35.19% lat (msec) : 500=3.65%, 750=0.13%, 1000=0.03% cpu : usr=0.04%, sys=1.28%, ctx=5419, 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=148901: Thu Apr 9 17:07:42 2026 read: IOPS=5, BW=21.2KiB/s (21.7kB/s)(5940KiB/279975msec) clat (msec): min=5, max=645, avg=38.68, stdev=37.38 lat (msec): min=5, max=645, avg=38.68, stdev=37.38 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 25], 50.00th=[ 29], 60.00th=[ 34], | 70.00th=[ 42], 80.00th=[ 52], 90.00th=[ 77], 95.00th=[ 101], | 99.00th=[ 165], 99.50th=[ 209], 99.90th=[ 384], 99.95th=[ 642], | 99.99th=[ 642] bw ( KiB/s): min= 7, max= 96, per=28.35%, avg=24.09, stdev=15.81, samples=475 iops : min= 1, max= 24, avg= 5.39, stdev= 3.99, samples=475 write: IOPS=5, BW=22.7KiB/s (23.2kB/s)(6348KiB/279975msec); 0 zone resets clat (msec): min=40, max=525, avg=140.04, stdev=64.69 lat (msec): min=40, max=525, avg=140.04, stdev=64.69 clat percentiles (msec): | 1.00th=[ 51], 5.00th=[ 65], 10.00th=[ 73], 20.00th=[ 89], | 30.00th=[ 102], 40.00th=[ 113], 50.00th=[ 125], 60.00th=[ 140], | 70.00th=[ 159], 80.00th=[ 184], 90.00th=[ 228], 95.00th=[ 271], | 99.00th=[ 359], 99.50th=[ 393], 99.90th=[ 485], 99.95th=[ 527], | 99.99th=[ 527] bw ( KiB/s): min= 7, max= 55, per=24.90%, avg=22.16, stdev= 9.44, samples=549 iops : min= 1, max= 13, avg= 4.90, stdev= 2.41, samples=549 lat (msec) : 10=2.54%, 20=11.65%, 50=24.06%, 100=22.72%, 250=35.42% lat (msec) : 500=3.55%, 750=0.07% cpu : usr=0.04%, sys=1.31%, ctx=5506, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=148902: Thu Apr 9 17:07:42 2026 read: IOPS=5, BW=21.6KiB/s (22.1kB/s)(6028KiB/279329msec) clat (msec): min=4, max=336, avg=38.71, stdev=33.55 lat (msec): min=4, max=336, avg=38.71, stdev=33.55 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 16], | 30.00th=[ 21], 40.00th=[ 24], 50.00th=[ 30], 60.00th=[ 35], | 70.00th=[ 43], 80.00th=[ 55], 90.00th=[ 77], 95.00th=[ 107], | 99.00th=[ 159], 99.50th=[ 203], 99.90th=[ 321], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 7, max= 119, per=27.93%, avg=23.74, stdev=16.18, samples=489 iops : min= 1, max= 29, avg= 5.31, stdev= 4.09, samples=489 write: IOPS=5, BW=22.4KiB/s (22.9kB/s)(6260KiB/279329msec); 0 zone resets clat (msec): min=46, max=755, avg=141.02, stdev=67.09 lat (msec): min=46, max=755, avg=141.02, stdev=67.09 clat percentiles (msec): | 1.00th=[ 53], 5.00th=[ 68], 10.00th=[ 78], 20.00th=[ 91], | 30.00th=[ 104], 40.00th=[ 113], 50.00th=[ 126], 60.00th=[ 142], | 70.00th=[ 159], 80.00th=[ 182], 90.00th=[ 222], 95.00th=[ 259], | 99.00th=[ 380], 99.50th=[ 422], 99.90th=[ 709], 99.95th=[ 760], | 99.99th=[ 760] bw ( KiB/s): min= 7, max= 47, per=24.71%, avg=21.99, stdev= 9.34, samples=547 iops : min= 1, max= 11, avg= 4.86, stdev= 2.40, samples=547 lat (msec) : 10=2.86%, 20=11.88%, 50=23.54%, 100=22.10%, 250=36.56% lat (msec) : 500=2.93%, 750=0.10%, 1000=0.03% cpu : usr=0.04%, sys=1.29%, ctx=5346, 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=148903: Thu Apr 9 17:07:42 2026 read: IOPS=5, BW=21.6KiB/s (22.2kB/s)(6052KiB/279738msec) clat (msec): min=5, max=342, avg=37.44, stdev=30.76 lat (msec): min=5, max=342, avg=37.44, stdev=30.76 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 20], 40.00th=[ 24], 50.00th=[ 29], 60.00th=[ 35], | 70.00th=[ 42], 80.00th=[ 52], 90.00th=[ 73], 95.00th=[ 97], | 99.00th=[ 163], 99.50th=[ 186], 99.90th=[ 251], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 7, max= 110, per=28.52%, avg=24.24, stdev=15.68, samples=482 iops : min= 1, max= 27, avg= 5.44, stdev= 3.94, samples=482 write: IOPS=5, BW=22.3KiB/s (22.8kB/s)(6236KiB/279738msec); 0 zone resets clat (msec): min=29, max=681, avg=142.87, stdev=68.74 lat (msec): min=29, max=681, avg=142.88, stdev=68.74 clat percentiles (msec): | 1.00th=[ 53], 5.00th=[ 68], 10.00th=[ 78], 20.00th=[ 91], | 30.00th=[ 104], 40.00th=[ 115], 50.00th=[ 128], 60.00th=[ 144], | 70.00th=[ 161], 80.00th=[ 184], 90.00th=[ 226], 95.00th=[ 271], | 99.00th=[ 384], 99.50th=[ 451], 99.90th=[ 667], 99.95th=[ 684], | 99.99th=[ 684] bw ( KiB/s): min= 7, max= 55, per=24.36%, avg=21.68, stdev= 9.37, samples=552 iops : min= 1, max= 13, avg= 4.78, stdev= 2.39, samples=552 lat (msec) : 10=2.18%, 20=12.79%, 50=24.25%, 100=21.84%, 250=35.42% lat (msec) : 500=3.39%, 750=0.13% cpu : usr=0.04%, sys=1.26%, ctx=5405, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=85.8KiB/s (87.8kB/s), 21.2KiB/s-21.6KiB/s (21.7kB/s-22.2kB/s), io=23.4MiB (24.6MB), run=279329-279975msec WRITE: bw=89.8KiB/s (91.9kB/s), 22.3KiB/s-22.7KiB/s (22.8kB/s-23.2kB/s), io=24.6MiB (25.7MB), run=279329-279975msec 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=148962: Thu Apr 9 17:08:28 2026 read: IOPS=11, BW=182KiB/s (186kB/s)(5920KiB/32561msec) clat (usec): min=37, max=415620, avg=44026.68, stdev=45527.39 lat (usec): min=38, max=415632, avg=44028.03, stdev=45527.65 clat percentiles (usec): | 1.00th=[ 40], 5.00th=[ 56], 10.00th=[ 65], 20.00th=[ 101], | 30.00th=[ 23725], 40.00th=[ 30278], 50.00th=[ 38011], 60.00th=[ 45351], | 70.00th=[ 55313], 80.00th=[ 67634], 90.00th=[ 84411], 95.00th=[ 98042], | 99.00th=[244319], 99.50th=[312476], 99.90th=[417334], 99.95th=[417334], | 99.99th=[417334] bw ( KiB/s): min= 32, max= 416, per=25.88%, avg=180.89, stdev=80.59, samples=64 iops : min= 2, max= 26, avg=10.59, stdev= 5.09, samples=64 write: IOPS=12, BW=196KiB/s (200kB/s)(6368KiB/32561msec); 0 zone resets clat (usec): min=1536, max=252352, avg=40417.97, stdev=43011.78 lat (usec): min=1537, max=252355, avg=40426.10, stdev=43009.35 clat percentiles (usec): | 1.00th=[ 1614], 5.00th=[ 1926], 10.00th=[ 2999], 20.00th=[ 5473], | 30.00th=[ 9896], 40.00th=[ 15795], 50.00th=[ 24249], 60.00th=[ 35390], | 70.00th=[ 50594], 80.00th=[ 71828], 90.00th=[102237], 95.00th=[125305], | 99.00th=[187696], 99.50th=[221250], 99.90th=[252707], 99.95th=[252707], | 99.99th=[252707] bw ( KiB/s): min= 31, max= 352, per=27.02%, avg=198.62, stdev=81.81, samples=63 iops : min= 1, max= 22, avg=11.71, stdev= 5.22, samples=63 lat (usec) : 50=1.56%, 100=7.94%, 250=0.78%, 750=0.13% lat (msec) : 2=3.39%, 4=4.69%, 10=8.33%, 20=8.85%, 50=31.77% lat (msec) : 100=24.61%, 250=7.42%, 500=0.52% cpu : usr=0.06%, sys=4.65%, ctx=1417, 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=148963: Thu Apr 9 17:08:28 2026 read: IOPS=10, BW=169KiB/s (173kB/s)(5744KiB/33983msec) clat (usec): min=34, max=367363, avg=50707.35, stdev=43655.65 lat (usec): min=35, max=367364, avg=50708.77, stdev=43655.75 clat percentiles (usec): | 1.00th=[ 45], 5.00th=[ 60], 10.00th=[ 67], 20.00th=[ 19268], | 30.00th=[ 30016], 40.00th=[ 38011], 50.00th=[ 45876], 60.00th=[ 53740], | 70.00th=[ 62653], 80.00th=[ 73925], 90.00th=[ 99091], 95.00th=[123208], | 99.00th=[212861], 99.50th=[267387], 99.90th=[367002], 99.95th=[367002], | 99.99th=[367002] bw ( KiB/s): min= 31, max= 319, per=24.57%, avg=171.71, stdev=69.79, samples=66 iops : min= 1, max= 19, avg=10.00, stdev= 4.44, samples=66 write: IOPS=12, BW=193KiB/s (197kB/s)(6544KiB/33983msec); 0 zone resets clat (usec): min=1429, max=322556, avg=38256.83, stdev=44697.61 lat (usec): min=1430, max=322558, avg=38260.41, stdev=44696.64 clat percentiles (usec): | 1.00th=[ 1647], 5.00th=[ 1876], 10.00th=[ 2868], 20.00th=[ 6390], | 30.00th=[ 9241], 40.00th=[ 14091], 50.00th=[ 21365], 60.00th=[ 31851], | 70.00th=[ 45351], 80.00th=[ 68682], 90.00th=[ 91751], 95.00th=[116917], | 99.00th=[202376], 99.50th=[256902], 99.90th=[320865], 99.95th=[320865], | 99.99th=[320865] bw ( KiB/s): min= 31, max= 474, per=26.06%, avg=191.52, stdev=93.58, samples=67 iops : min= 1, max= 29, avg=11.27, stdev= 5.90, samples=67 lat (usec) : 50=0.65%, 100=6.90%, 250=0.52%, 500=0.13%, 750=0.26% lat (msec) : 2=4.43%, 4=3.39%, 10=9.11%, 20=9.24%, 50=29.69% lat (msec) : 100=26.69%, 250=8.33%, 500=0.65% cpu : usr=0.09%, sys=4.87%, ctx=1483, 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=148964: Thu Apr 9 17:08:28 2026 read: IOPS=11, BW=183KiB/s (187kB/s)(6256KiB/34244msec) clat (usec): min=34, max=409741, avg=48213.88, stdev=45214.18 lat (usec): min=34, max=409742, avg=48216.00, stdev=45214.15 clat percentiles (usec): | 1.00th=[ 42], 5.00th=[ 57], 10.00th=[ 62], 20.00th=[ 145], | 30.00th=[ 26870], 40.00th=[ 34341], 50.00th=[ 42730], 60.00th=[ 49546], | 70.00th=[ 60556], 80.00th=[ 74974], 90.00th=[ 96994], 95.00th=[121111], | 99.00th=[248513], 99.50th=[261096], 99.90th=[408945], 99.95th=[408945], | 99.99th=[408945] bw ( KiB/s): min= 62, max= 415, per=25.94%, avg=181.31, stdev=77.97, samples=67 iops : min= 3, max= 25, avg=10.60, stdev= 4.91, samples=67 write: IOPS=11, BW=176KiB/s (180kB/s)(6032KiB/34244msec); 0 zone resets clat (usec): min=1345, max=386565, avg=40348.22, stdev=46944.83 lat (usec): min=1347, max=386567, avg=40350.53, stdev=46944.80 clat percentiles (usec): | 1.00th=[ 1516], 5.00th=[ 1778], 10.00th=[ 2212], 20.00th=[ 5145], | 30.00th=[ 8455], 40.00th=[ 13829], 50.00th=[ 23725], 60.00th=[ 35390], | 70.00th=[ 48497], 80.00th=[ 69731], 90.00th=[107480], 95.00th=[125305], | 99.00th=[196084], 99.50th=[256902], 99.90th=[387974], 99.95th=[387974], | 99.99th=[387974] bw ( KiB/s): min= 31, max= 382, per=24.21%, avg=177.94, stdev=75.76, samples=65 iops : min= 1, max= 23, avg=10.40, stdev= 4.75, samples=65 lat (usec) : 50=1.04%, 100=8.85%, 250=0.65%, 1000=0.13% lat (msec) : 2=4.30%, 4=3.78%, 10=8.72%, 20=7.55%, 50=30.47% lat (msec) : 100=24.22%, 250=9.64%, 500=0.65% cpu : usr=0.10%, sys=4.84%, ctx=1508, 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=148965: Thu Apr 9 17:08:28 2026 read: IOPS=11, BW=186KiB/s (190kB/s)(6032KiB/32454msec) clat (usec): min=34, max=204650, avg=47256.27, stdev=38735.58 lat (usec): min=34, max=204651, avg=47257.64, stdev=38735.66 clat percentiles (usec): | 1.00th=[ 41], 5.00th=[ 57], 10.00th=[ 66], 20.00th=[ 1221], | 30.00th=[ 27132], 40.00th=[ 36439], 50.00th=[ 43779], 60.00th=[ 52167], | 70.00th=[ 60556], 80.00th=[ 74974], 90.00th=[ 96994], 95.00th=[116917], | 99.00th=[185598], 99.50th=[198181], 99.90th=[204473], 99.95th=[204473], | 99.99th=[204473] bw ( KiB/s): min= 31, max= 352, per=26.38%, avg=184.41, stdev=79.02, samples=63 iops : min= 1, max= 22, avg=10.83, stdev= 5.05, samples=63 write: IOPS=12, BW=193KiB/s (197kB/s)(6256KiB/32454msec); 0 zone resets clat (usec): min=1381, max=272848, avg=36886.35, stdev=41661.46 lat (usec): min=1384, max=272851, avg=36888.71, stdev=41661.51 clat percentiles (usec): | 1.00th=[ 1532], 5.00th=[ 1860], 10.00th=[ 2704], 20.00th=[ 5014], | 30.00th=[ 8586], 40.00th=[ 13304], 50.00th=[ 20055], 60.00th=[ 32637], | 70.00th=[ 45876], 80.00th=[ 63177], 90.00th=[ 90702], 95.00th=[119014], | 99.00th=[173016], 99.50th=[217056], 99.90th=[274727], 99.95th=[274727], | 99.99th=[274727] bw ( KiB/s): min= 31, max= 404, per=26.12%, avg=191.97, stdev=74.57, samples=63 iops : min= 1, max= 25, avg=11.30, stdev= 4.76, samples=63 lat (usec) : 50=1.17%, 100=7.94%, 250=0.26%, 500=0.13%, 750=0.13% lat (msec) : 2=4.43%, 4=4.69%, 10=10.03%, 20=9.38%, 50=27.60% lat (msec) : 100=25.65%, 250=8.46%, 500=0.13% cpu : usr=0.08%, sys=4.98%, ctx=1413, 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=699KiB/s (716kB/s), 169KiB/s-186KiB/s (173kB/s-190kB/s), io=23.4MiB (24.5MB), run=32454-34244msec WRITE: bw=736KiB/s (754kB/s), 176KiB/s-196KiB/s (180kB/s-200kB/s), io=24.6MiB (25.8MB), run=32454-34244msec rand-rw: (groupid=0, jobs=1): err= 0: pid=148967: Thu Apr 9 17:09:15 2026 read: IOPS=4, BW=73.9KiB/s (75.7kB/s)(5920KiB/80125msec) clat (msec): min=7, max=336, avg=45.39, stdev=47.52 lat (msec): min=7, max=336, avg=45.39, stdev=47.52 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 22], 40.00th=[ 25], 50.00th=[ 31], 60.00th=[ 37], | 70.00th=[ 45], 80.00th=[ 57], 90.00th=[ 91], 95.00th=[ 150], | 99.00th=[ 271], 99.50th=[ 317], 99.90th=[ 338], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 29, max= 224, per=28.07%, avg=83.65, stdev=52.72, samples=139 iops : min= 1, max= 14, avg= 4.45, stdev= 3.37, samples=139 write: IOPS=4, BW=79.5KiB/s (81.4kB/s)(6368KiB/80125msec); 0 zone resets clat (msec): min=52, max=506, avg=158.93, stdev=72.98 lat (msec): min=52, max=506, avg=158.94, stdev=72.98 clat percentiles (msec): | 1.00th=[ 58], 5.00th=[ 77], 10.00th=[ 87], 20.00th=[ 105], | 30.00th=[ 116], 40.00th=[ 126], 50.00th=[ 140], 60.00th=[ 155], | 70.00th=[ 176], 80.00th=[ 207], 90.00th=[ 257], 95.00th=[ 321], | 99.00th=[ 393], 99.50th=[ 443], 99.90th=[ 506], 99.95th=[ 506], | 99.99th=[ 506] bw ( KiB/s): min= 21, max= 160, per=26.29%, avg=82.28, stdev=33.88, samples=152 iops : min= 1, max= 10, avg= 4.37, stdev= 2.22, samples=152 lat (msec) : 10=0.91%, 20=11.85%, 50=23.57%, 100=16.41%, 250=41.15% lat (msec) : 500=5.99%, 750=0.13% cpu : usr=0.04%, sys=1.15%, ctx=1314, 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=148968: Thu Apr 9 17:09:15 2026 read: IOPS=4, BW=71.5KiB/s (73.2kB/s)(5744KiB/80354msec) clat (msec): min=7, max=345, avg=44.30, stdev=42.45 lat (msec): min=7, max=345, avg=44.30, stdev=42.45 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 12], 10.00th=[ 15], 20.00th=[ 19], | 30.00th=[ 22], 40.00th=[ 26], 50.00th=[ 30], 60.00th=[ 34], | 70.00th=[ 44], 80.00th=[ 59], 90.00th=[ 102], 95.00th=[ 138], | 99.00th=[ 186], 99.50th=[ 284], 99.90th=[ 347], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 22, max= 341, per=28.64%, avg=85.34, stdev=58.89, samples=131 iops : min= 1, max= 21, avg= 4.57, stdev= 3.73, samples=131 write: IOPS=5, BW=81.4KiB/s (83.4kB/s)(6544KiB/80354msec); 0 zone resets clat (msec): min=37, max=539, avg=157.44, stdev=75.73 lat (msec): min=37, max=539, avg=157.44, stdev=75.73 clat percentiles (msec): | 1.00th=[ 52], 5.00th=[ 70], 10.00th=[ 82], 20.00th=[ 100], | 30.00th=[ 114], 40.00th=[ 126], 50.00th=[ 140], 60.00th=[ 157], | 70.00th=[ 176], 80.00th=[ 201], 90.00th=[ 271], 95.00th=[ 317], | 99.00th=[ 409], 99.50th=[ 447], 99.90th=[ 542], 99.95th=[ 542], | 99.99th=[ 542] bw ( KiB/s): min= 30, max= 160, per=26.90%, avg=84.19, stdev=36.20, samples=151 iops : min= 1, max= 10, avg= 4.49, stdev= 2.34, samples=151 lat (msec) : 10=0.78%, 20=10.94%, 50=24.09%, 100=17.06%, 250=40.89% lat (msec) : 500=6.12%, 750=0.13% cpu : usr=0.05%, sys=1.14%, ctx=1307, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=148969: Thu Apr 9 17:09:15 2026 read: IOPS=5, BW=80.7KiB/s (82.6kB/s)(6256KiB/77542msec) clat (msec): min=6, max=501, avg=42.53, stdev=51.30 lat (msec): min=6, max=501, avg=42.54, stdev=51.30 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 15], 20.00th=[ 18], | 30.00th=[ 21], 40.00th=[ 25], 50.00th=[ 28], 60.00th=[ 33], | 70.00th=[ 42], 80.00th=[ 57], 90.00th=[ 80], 95.00th=[ 110], | 99.00th=[ 351], 99.50th=[ 481], 99.90th=[ 502], 99.95th=[ 502], | 99.99th=[ 502] bw ( KiB/s): min= 29, max= 277, per=31.73%, avg=94.56, stdev=59.15, samples=130 iops : min= 1, max= 17, avg= 5.14, stdev= 3.76, samples=130 write: IOPS=4, BW=77.8KiB/s (79.7kB/s)(6032KiB/77542msec); 0 zone resets clat (msec): min=50, max=676, avg=161.37, stdev=82.66 lat (msec): min=50, max=676, avg=161.39, stdev=82.66 clat percentiles (msec): | 1.00th=[ 56], 5.00th=[ 73], 10.00th=[ 87], 20.00th=[ 102], | 30.00th=[ 116], 40.00th=[ 126], 50.00th=[ 142], 60.00th=[ 157], | 70.00th=[ 178], 80.00th=[ 201], 90.00th=[ 264], 95.00th=[ 321], | 99.00th=[ 506], 99.50th=[ 527], 99.90th=[ 676], 99.95th=[ 676], | 99.99th=[ 676] bw ( KiB/s): min= 29, max= 159, per=25.26%, avg=79.06, stdev=33.25, samples=148 iops : min= 1, max= 9, avg= 4.16, stdev= 2.19, samples=148 lat (msec) : 10=0.91%, 20=13.41%, 50=24.22%, 100=18.62%, 250=35.81% lat (msec) : 500=6.25%, 750=0.78% cpu : usr=0.05%, sys=1.19%, ctx=1297, 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=148970: Thu Apr 9 17:09:15 2026 read: IOPS=4, BW=75.7KiB/s (77.5kB/s)(6032KiB/79713msec) clat (msec): min=5, max=488, avg=44.23, stdev=51.85 lat (msec): min=5, max=488, avg=44.23, stdev=51.85 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 13], 10.00th=[ 15], 20.00th=[ 19], | 30.00th=[ 22], 40.00th=[ 25], 50.00th=[ 30], 60.00th=[ 35], | 70.00th=[ 42], 80.00th=[ 54], 90.00th=[ 88], 95.00th=[ 126], | 99.00th=[ 309], 99.50th=[ 481], 99.90th=[ 489], 99.95th=[ 489], | 99.99th=[ 489] bw ( KiB/s): min= 30, max= 314, per=29.45%, avg=87.76, stdev=59.97, samples=134 iops : min= 1, max= 19, avg= 4.72, stdev= 3.79, samples=134 write: IOPS=4, BW=78.5KiB/s (80.4kB/s)(6256KiB/79713msec); 0 zone resets clat (msec): min=50, max=548, avg=161.11, stdev=72.60 lat (msec): min=50, max=548, avg=161.12, stdev=72.60 clat percentiles (msec): | 1.00th=[ 68], 5.00th=[ 80], 10.00th=[ 90], 20.00th=[ 106], | 30.00th=[ 118], 40.00th=[ 133], 50.00th=[ 142], 60.00th=[ 155], | 70.00th=[ 178], 80.00th=[ 207], 90.00th=[ 268], 95.00th=[ 309], | 99.00th=[ 405], 99.50th=[ 523], 99.90th=[ 550], 99.95th=[ 550], | 99.99th=[ 550] bw ( KiB/s): min= 30, max= 160, per=26.15%, avg=81.86, stdev=31.57, samples=150 iops : min= 1, max= 10, avg= 4.34, stdev= 2.09, samples=150 lat (msec) : 10=0.78%, 20=11.20%, 50=26.43%, 100=14.45%, 250=40.49% lat (msec) : 500=6.38%, 750=0.26% cpu : usr=0.03%, sys=1.11%, ctx=1236, 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=298KiB/s (305kB/s), 71.5KiB/s-80.7KiB/s (73.2kB/s-82.6kB/s), io=23.4MiB (24.5MB), run=77542-80354msec WRITE: bw=314KiB/s (321kB/s), 77.8KiB/s-81.4KiB/s (79.7kB/s-83.4kB/s), io=24.6MiB (25.8MB), run=77542-80354msec 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=148988: Thu Apr 9 17:09:37 2026 read: IOPS=0, BW=965KiB/s (988kB/s)(7168KiB/7429msec) clat (usec): min=531, max=391531, avg=210040.17, stdev=156054.27 lat (usec): min=532, max=391532, avg=210041.65, stdev=156054.38 clat percentiles (usec): | 1.00th=[ 529], 5.00th=[ 529], 10.00th=[ 529], 20.00th=[ 570], | 30.00th=[193987], 40.00th=[193987], 50.00th=[248513], 60.00th=[304088], | 70.00th=[304088], 80.00th=[333448], 90.00th=[392168], 95.00th=[392168], | 99.00th=[392168], 99.50th=[392168], 99.90th=[392168], 99.95th=[392168], | 99.99th=[392168] bw ( KiB/s): min= 1592, max= 4079, per=97.81%, avg=2335.60, stdev=990.91, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 write: IOPS=0, BW=689KiB/s (706kB/s)(5120KiB/7429msec); 0 zone resets clat (msec): min=161, max=4678, avg=1159.59, stdev=1969.01 lat (msec): min=161, max=4679, avg=1159.73, stdev=1968.97 clat percentiles (msec): | 1.00th=[ 163], 5.00th=[ 163], 10.00th=[ 163], 20.00th=[ 163], | 30.00th=[ 253], 40.00th=[ 253], 50.00th=[ 342], 60.00th=[ 342], | 70.00th=[ 363], 80.00th=[ 363], 90.00th=[ 4665], 95.00th=[ 4665], | 99.00th=[ 4665], 99.50th=[ 4665], 99.90th=[ 4665], 99.95th=[ 4665], | 99.99th=[ 4665] bw ( KiB/s): min= 1988, max= 4079, per=80.59%, avg=2694.00, stdev=1199.52, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (usec) : 750=16.67% lat (msec) : 250=25.00%, 500=50.00%, >=2000=8.33% cpu : usr=0.00%, sys=4.59%, ctx=134, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=148989: Thu Apr 9 17:09:37 2026 read: IOPS=0, BW=239KiB/s (245kB/s)(2048KiB/8575msec) clat (msec): min=219, max=4052, avg=2136.20, stdev=2710.33 lat (msec): min=219, max=4052, avg=2136.20, stdev=2710.33 clat percentiles (msec): | 1.00th=[ 220], 5.00th=[ 220], 10.00th=[ 220], 20.00th=[ 220], | 30.00th=[ 220], 40.00th=[ 220], 50.00th=[ 220], 60.00th=[ 4044], | 70.00th=[ 4044], 80.00th=[ 4044], 90.00th=[ 4044], 95.00th=[ 4044], | 99.00th=[ 4044], 99.50th=[ 4044], 99.90th=[ 4044], 99.95th=[ 4044], | 99.99th=[ 4044] bw ( KiB/s): min= 1560, max= 2039, per=75.36%, avg=1799.50, stdev=338.70, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1194KiB/s (1223kB/s)(10.0MiB/8575msec); 0 zone resets clat (msec): min=120, max=1032, avg=424.90, stdev=271.10 lat (msec): min=120, max=1034, avg=425.18, stdev=271.44 clat percentiles (msec): | 1.00th=[ 122], 5.00th=[ 122], 10.00th=[ 122], 20.00th=[ 148], | 30.00th=[ 165], 40.00th=[ 368], 50.00th=[ 405], 60.00th=[ 451], | 70.00th=[ 456], 80.00th=[ 468], 90.00th=[ 642], 95.00th=[ 1036], | 99.00th=[ 1036], 99.50th=[ 1036], 99.90th=[ 1036], 99.95th=[ 1036], | 99.99th=[ 1036] bw ( KiB/s): min= 1988, max= 4096, per=77.61%, avg=2594.43, stdev=980.57, samples=7 iops : min= 1, max= 4, avg= 1.71, stdev= 1.25, samples=7 lat (msec) : 250=33.33%, 500=41.67%, 750=8.33%, 2000=8.33%, >=2000=8.33% cpu : usr=0.01%, sys=5.75%, ctx=161, 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=148990: Thu Apr 9 17:09:37 2026 read: IOPS=1, BW=1625KiB/s (1664kB/s)(6144KiB/3781msec) clat (usec): min=873, max=342129, avg=141644.50, stdev=130001.48 lat (usec): min=874, max=342129, avg=141645.80, stdev=130001.32 clat percentiles (usec): | 1.00th=[ 873], 5.00th=[ 873], 10.00th=[ 873], 20.00th=[ 1713], | 30.00th=[ 1713], 40.00th=[135267], 50.00th=[135267], 60.00th=[160433], | 70.00th=[208667], 80.00th=[208667], 90.00th=[341836], 95.00th=[341836], | 99.00th=[341836], 99.50th=[341836], 99.90th=[341836], 99.95th=[341836], | 99.99th=[341836] bw ( KiB/s): min= 2015, max= 4055, per=100.00%, avg=3372.33, stdev=1175.49, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=1, BW=1625KiB/s (1664kB/s)(6144KiB/3781msec); 0 zone resets clat (msec): min=152, max=1219, avg=461.16, stdev=408.19 lat (msec): min=152, max=1219, avg=461.34, stdev=408.15 clat percentiles (msec): | 1.00th=[ 153], 5.00th=[ 153], 10.00th=[ 153], 20.00th=[ 174], | 30.00th=[ 174], 40.00th=[ 222], 50.00th=[ 222], 60.00th=[ 401], | 70.00th=[ 600], 80.00th=[ 600], 90.00th=[ 1217], 95.00th=[ 1217], | 99.00th=[ 1217], 99.50th=[ 1217], 99.90th=[ 1217], 99.95th=[ 1217], | 99.99th=[ 1217] bw ( KiB/s): min= 1988, max= 2039, per=60.38%, avg=2018.40, stdev=19.07, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (usec) : 1000=8.33% lat (msec) : 2=8.33%, 250=50.00%, 500=16.67%, 750=8.33%, 2000=8.33% cpu : usr=0.00%, sys=9.15%, ctx=295, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=148991: Thu Apr 9 17:09:37 2026 read: IOPS=0, BW=754KiB/s (772kB/s)(5120KiB/6791msec) clat (usec): min=350, max=4535.4k, avg=908150.13, stdev=2027709.68 lat (usec): min=351, max=4535.4k, avg=908151.44, stdev=2027709.95 clat percentiles (usec): | 1.00th=[ 351], 5.00th=[ 351], 10.00th=[ 351], | 20.00th=[ 351], 30.00th=[ 424], 40.00th=[ 424], | 50.00th=[ 519], 60.00th=[ 519], 70.00th=[ 4015], | 80.00th=[ 4015], 90.00th=[4529849], 95.00th=[4529849], | 99.00th=[4529849], 99.50th=[4529849], 99.90th=[4529849], | 99.95th=[4529849], 99.99th=[4529849] bw ( KiB/s): min= 8159, max= 8159, per=100.00%, avg=8159.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=1, BW=1056KiB/s (1081kB/s)(7168KiB/6791msec); 0 zone resets clat (msec): min=75, max=659, avg=310.44, stdev=201.37 lat (msec): min=75, max=659, avg=310.55, stdev=201.41 clat percentiles (msec): | 1.00th=[ 75], 5.00th=[ 75], 10.00th=[ 75], 20.00th=[ 146], | 30.00th=[ 222], 40.00th=[ 222], 50.00th=[ 239], 60.00th=[ 372], | 70.00th=[ 372], 80.00th=[ 460], 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= 1828, max= 4079, per=88.72%, avg=2965.75, stdev=1228.29, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 lat (usec) : 500=16.67%, 750=8.33% lat (msec) : 10=8.33%, 100=8.33%, 250=25.00%, 500=16.67%, 750=8.33% lat (msec) : >=2000=8.33% cpu : usr=0.03%, sys=5.66%, ctx=471, 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=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=2388KiB/s (2446kB/s), 239KiB/s-1625KiB/s (245kB/s-1664kB/s), io=20.0MiB (20.0MB), run=3781-8575msec WRITE: bw=3344KiB/s (3424kB/s), 689KiB/s-1625KiB/s (706kB/s-1664kB/s), io=28.0MiB (29.4MB), run=3781-8575msec rand-rw: (groupid=0, jobs=1): err= 0: pid=148993: Thu Apr 9 17:09:38 2026 read: IOPS=0, BW=879KiB/s (900kB/s)(7168KiB/8153msec) clat (msec): min=128, max=800, avg=306.22, stdev=233.32 lat (msec): min=128, max=800, avg=306.22, stdev=233.32 clat percentiles (msec): | 1.00th=[ 129], 5.00th=[ 129], 10.00th=[ 129], 20.00th=[ 169], | 30.00th=[ 174], 40.00th=[ 174], 50.00th=[ 243], 60.00th=[ 245], | 70.00th=[ 245], 80.00th=[ 388], 90.00th=[ 802], 95.00th=[ 802], | 99.00th=[ 802], 99.50th=[ 802], 99.90th=[ 802], 99.95th=[ 802], | 99.99th=[ 802] bw ( KiB/s): min= 1595, max= 4096, per=100.00%, avg=2362.60, stdev=988.04, samples=5 iops : min= 1, max= 4, avg= 1.80, stdev= 1.30, samples=5 write: IOPS=0, BW=628KiB/s (643kB/s)(5120KiB/8153msec); 0 zone resets clat (msec): min=244, max=4494, avg=1201.45, stdev=1844.72 lat (msec): min=244, max=4494, avg=1201.55, stdev=1844.72 clat percentiles (msec): | 1.00th=[ 245], 5.00th=[ 245], 10.00th=[ 245], 20.00th=[ 245], | 30.00th=[ 317], 40.00th=[ 317], 50.00th=[ 388], 60.00th=[ 388], | 70.00th=[ 567], 80.00th=[ 567], 90.00th=[ 4463], 95.00th=[ 4463], | 99.00th=[ 4463], 99.50th=[ 4463], 99.90th=[ 4463], 99.95th=[ 4463], | 99.99th=[ 4463] bw ( KiB/s): min= 2035, max= 2048, per=70.16%, avg=2042.50, stdev= 6.56, samples=4 iops : min= 1, max= 2, avg= 1.50, stdev= 0.58, samples=4 lat (msec) : 250=50.00%, 500=25.00%, 750=8.33%, 1000=8.33%, >=2000=8.33% cpu : usr=0.00%, sys=1.41%, ctx=65, 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=148994: Thu Apr 9 17:09:38 2026 read: IOPS=0, BW=208KiB/s (213kB/s)(2048KiB/9848msec) clat (msec): min=116, max=243, avg=180.41, stdev=89.72 lat (msec): min=116, max=243, avg=180.41, stdev=89.72 clat percentiles (msec): | 1.00th=[ 117], 5.00th=[ 117], 10.00th=[ 117], 20.00th=[ 117], | 30.00th=[ 117], 40.00th=[ 117], 50.00th=[ 117], 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= 1625, max= 2043, per=88.22%, avg=1834.00, stdev=295.57, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1040KiB/s (1065kB/s)(10.0MiB/9848msec); 0 zone resets clat (msec): min=211, max=5834, avg=948.26, stdev=1739.24 lat (msec): min=211, max=5834, avg=948.34, stdev=1739.24 clat percentiles (msec): | 1.00th=[ 211], 5.00th=[ 211], 10.00th=[ 211], 20.00th=[ 224], | 30.00th=[ 251], 40.00th=[ 275], 50.00th=[ 305], 60.00th=[ 326], | 70.00th=[ 330], 80.00th=[ 600], 90.00th=[ 1133], 95.00th=[ 5805], | 99.00th=[ 5805], 99.50th=[ 5805], 99.90th=[ 5805], 99.95th=[ 5805], | 99.99th=[ 5805] bw ( KiB/s): min= 2031, max= 4055, per=88.79%, avg=2584.57, stdev=929.29, samples=7 iops : min= 1, max= 3, avg= 1.86, stdev= 0.90, samples=7 lat (msec) : 250=33.33%, 500=41.67%, 750=8.33%, 2000=8.33%, >=2000=8.33% cpu : usr=0.00%, sys=1.30%, ctx=60, 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=148995: Thu Apr 9 17:09:38 2026 read: IOPS=0, BW=672KiB/s (688kB/s)(6144KiB/9141msec) clat (msec): min=104, max=361, avg=218.19, stdev=94.11 lat (msec): min=104, max=361, avg=218.19, stdev=94.11 clat percentiles (msec): | 1.00th=[ 105], 5.00th=[ 105], 10.00th=[ 105], 20.00th=[ 157], | 30.00th=[ 157], 40.00th=[ 163], 50.00th=[ 163], 60.00th=[ 255], | 70.00th=[ 271], 80.00th=[ 271], 90.00th=[ 363], 95.00th=[ 363], | 99.00th=[ 363], 99.50th=[ 363], 99.90th=[ 363], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 2043, max= 4096, per=100.00%, avg=3400.67, stdev=1175.89, samples=3 iops : min= 1, max= 4, avg= 2.67, stdev= 1.53, samples=3 write: IOPS=0, BW=672KiB/s (688kB/s)(6144KiB/9141msec); 0 zone resets clat (msec): min=234, max=4977, avg=1296.40, stdev=1842.72 lat (msec): min=235, max=4978, avg=1296.77, stdev=1843.32 clat percentiles (msec): | 1.00th=[ 236], 5.00th=[ 236], 10.00th=[ 236], 20.00th=[ 359], | 30.00th=[ 359], 40.00th=[ 422], 50.00th=[ 422], 60.00th=[ 485], | 70.00th=[ 1301], 80.00th=[ 1301], 90.00th=[ 5000], 95.00th=[ 5000], | 99.00th=[ 5000], 99.50th=[ 5000], 99.90th=[ 5000], 99.95th=[ 5000], | 99.99th=[ 5000] bw ( KiB/s): min= 2039, max= 2048, per=70.20%, avg=2043.40, stdev= 4.51, samples=5 iops : min= 1, max= 2, avg= 1.40, stdev= 0.55, samples=5 lat (msec) : 250=33.33%, 500=50.00%, 2000=8.33%, >=2000=8.33% cpu : usr=0.02%, sys=1.86%, ctx=80, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=148996: Thu Apr 9 17:09:38 2026 read: IOPS=0, BW=546KiB/s (559kB/s)(5120KiB/9372msec) clat (msec): min=124, max=553, avg=312.79, stdev=205.82 lat (msec): min=124, max=553, avg=312.79, stdev=205.82 clat percentiles (msec): | 1.00th=[ 125], 5.00th=[ 125], 10.00th=[ 125], 20.00th=[ 125], | 30.00th=[ 153], 40.00th=[ 153], 50.00th=[ 218], 60.00th=[ 218], | 70.00th=[ 514], 80.00th=[ 514], 90.00th=[ 558], 95.00th=[ 558], | 99.00th=[ 558], 99.50th=[ 558], 99.90th=[ 558], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 2031, max= 2048, per=98.14%, avg=2040.25, stdev= 7.18, samples=4 iops : min= 1, max= 2, avg= 1.25, stdev= 0.50, samples=4 write: IOPS=0, BW=765KiB/s (783kB/s)(7168KiB/9372msec); 0 zone resets clat (msec): min=182, max=4003, avg=1114.48, stdev=1339.08 lat (msec): min=182, max=4003, avg=1114.84, stdev=1339.11 clat percentiles (msec): | 1.00th=[ 182], 5.00th=[ 182], 10.00th=[ 182], 20.00th=[ 247], | 30.00th=[ 460], 40.00th=[ 460], 50.00th=[ 535], 60.00th=[ 1099], | 70.00th=[ 1099], 80.00th=[ 1267], 90.00th=[ 4010], 95.00th=[ 4010], | 99.00th=[ 4010], 99.50th=[ 4010], 99.90th=[ 4010], 99.95th=[ 4010], | 99.99th=[ 4010] bw ( KiB/s): min= 2039, max= 5742, per=95.67%, avg=2785.00, stdev=1653.02, samples=5 iops : min= 1, max= 5, avg= 2.40, stdev= 1.52, samples=5 lat (msec) : 250=41.67%, 500=8.33%, 750=25.00%, 2000=16.67%, >=2000=8.33% cpu : usr=0.00%, sys=1.82%, ctx=63, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=2080KiB/s (2130kB/s), 208KiB/s-879KiB/s (213kB/s-900kB/s), io=20.0MiB (20.0MB), run=8153-9848msec WRITE: bw=2911KiB/s (2981kB/s), 628KiB/s-1040KiB/s (643kB/s-1065kB/s), io=28.0MiB (29.4MB), run=8153-9848msec 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=149005: Thu Apr 9 17:09:58 2026 read: IOPS=0, BW=3304KiB/s (3383kB/s)(12.0MiB/3719msec) clat (msec): min=1001, max=1469, avg=1220.93, stdev=235.23 lat (msec): min=1001, max=1469, avg=1220.93, stdev=235.23 clat percentiles (msec): | 1.00th=[ 1003], 5.00th=[ 1003], 10.00th=[ 1003], 20.00th=[ 1003], | 30.00th=[ 1003], 40.00th=[ 1200], 50.00th=[ 1200], 60.00th=[ 1200], | 70.00th=[ 1469], 80.00th=[ 1469], 90.00th=[ 1469], 95.00th=[ 1469], | 99.00th=[ 1469], 99.50th=[ 1469], 99.90th=[ 1469], 99.95th=[ 1469], | 99.99th=[ 1469] bw ( KiB/s): min= 7876, max= 8159, per=100.00%, avg=8017.50, stdev=200.11, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 2000=100.00% cpu : usr=0.03%, sys=10.79%, ctx=266, 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=149006: Thu Apr 9 17:09:58 2026 read: IOPS=0, BW=941KiB/s (963kB/s)(4096KiB/4355msec) clat (nsec): min=931919k, max=931919k, avg=931918756.00, stdev= 0.00 lat (nsec): min=931921k, max=931921k, avg=931921479.00, stdev= 0.00 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=[ 936], | 70.00th=[ 936], 80.00th=[ 936], 90.00th=[ 936], 95.00th=[ 936], | 99.00th=[ 936], 99.50th=[ 936], 99.90th=[ 936], 99.95th=[ 936], | 99.99th=[ 936] 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=1881KiB/s (1926kB/s)(8192KiB/4355msec); 0 zone resets clat (msec): min=1091, max=2193, avg=1642.70, stdev=778.96 lat (msec): min=1095, max=2201, avg=1648.49, stdev=781.96 clat percentiles (msec): | 1.00th=[ 1099], 5.00th=[ 1099], 10.00th=[ 1099], 20.00th=[ 1099], | 30.00th=[ 1099], 40.00th=[ 1099], 50.00th=[ 1099], 60.00th=[ 2198], | 70.00th=[ 2198], 80.00th=[ 2198], 90.00th=[ 2198], 95.00th=[ 2198], | 99.00th=[ 2198], 99.50th=[ 2198], 99.90th=[ 2198], 99.95th=[ 2198], | 99.99th=[ 2198] bw ( KiB/s): min= 8078, max= 8078, per=100.00%, avg=8078.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 1000=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.05%, sys=1.77%, ctx=130, 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=149007: Thu Apr 9 17:09:58 2026 write: IOPS=0, BW=2384KiB/s (2441kB/s)(12.0MiB/5154msec); 0 zone resets clat (msec): min=1368, max=1911, avg=1666.50, stdev=275.06 lat (msec): min=1369, max=1912, avg=1667.42, stdev=275.34 clat percentiles (msec): | 1.00th=[ 1368], 5.00th=[ 1368], 10.00th=[ 1368], 20.00th=[ 1368], | 30.00th=[ 1368], 40.00th=[ 1720], 50.00th=[ 1720], 60.00th=[ 1720], | 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= 7861, max= 8094, per=100.00%, avg=7977.50, stdev=164.76, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 2000=100.00% cpu : usr=0.00%, sys=1.47%, ctx=53, majf=0, minf=7 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=149008: Thu Apr 9 17:09:58 2026 write: IOPS=0, BW=3735KiB/s (3825kB/s)(12.0MiB/3290msec); 0 zone resets clat (msec): min=611, max=2000, avg=1075.50, stdev=801.17 lat (msec): min=612, max=2001, avg=1076.15, stdev=801.02 clat percentiles (msec): | 1.00th=[ 609], 5.00th=[ 609], 10.00th=[ 609], 20.00th=[ 609], | 30.00th=[ 609], 40.00th=[ 617], 50.00th=[ 617], 60.00th=[ 617], | 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= 7772, max= 8159, per=100.00%, avg=7965.50, stdev=273.65, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=66.67%, >=2000=33.33% cpu : usr=0.06%, sys=3.31%, ctx=49, 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=3762KiB/s (3852kB/s), 941KiB/s-3304KiB/s (963kB/s-3383kB/s), io=16.0MiB (16.8MB), run=3719-4355msec WRITE: bw=6358KiB/s (6510kB/s), 1881KiB/s-3735KiB/s (1926kB/s-3825kB/s), io=32.0MiB (33.6MB), run=3290-5154msec rand-rw: (groupid=0, jobs=1): err= 0: pid=149009: Thu Apr 9 17:09:58 2026 read: IOPS=0, BW=2283KiB/s (2338kB/s)(12.0MiB/5382msec) clat (msec): min=1080, max=2127, avg=1729.72, stdev=566.70 lat (msec): min=1080, max=2127, avg=1729.72, stdev=566.70 clat percentiles (msec): | 1.00th=[ 1083], 5.00th=[ 1083], 10.00th=[ 1083], 20.00th=[ 1083], | 30.00th=[ 1083], 40.00th=[ 1989], 50.00th=[ 1989], 60.00th=[ 1989], | 70.00th=[ 2123], 80.00th=[ 2123], 90.00th=[ 2123], 95.00th=[ 2123], | 99.00th=[ 2123], 99.50th=[ 2123], 99.90th=[ 2123], 99.95th=[ 2123], | 99.99th=[ 2123] bw ( KiB/s): min= 8047, max= 8126, per=100.00%, avg=8086.50, stdev=55.86, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 2000=66.67%, >=2000=33.33% cpu : usr=0.00%, sys=2.03%, ctx=47, 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=149010: Thu Apr 9 17:09:58 2026 read: IOPS=0, BW=794KiB/s (813kB/s)(4096KiB/5157msec) clat (nsec): min=1915.1M, max=1915.1M, avg=1915105346.00, stdev= 0.00 lat (nsec): min=1915.1M, max=1915.1M, avg=1915107740.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1921], 5.00th=[ 1921], 10.00th=[ 1921], 20.00th=[ 1921], | 30.00th=[ 1921], 40.00th=[ 1921], 50.00th=[ 1921], 60.00th=[ 1921], | 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= 8015, max= 8015, per=100.00%, avg=8015.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=1589KiB/s (1627kB/s)(8192KiB/5157msec); 0 zone resets clat (msec): min=587, max=2493, avg=1540.86, stdev=1347.67 lat (msec): min=588, max=2494, avg=1541.27, stdev=1347.84 clat percentiles (msec): | 1.00th=[ 592], 5.00th=[ 592], 10.00th=[ 592], 20.00th=[ 592], | 30.00th=[ 592], 40.00th=[ 592], 50.00th=[ 592], 60.00th=[ 2500], | 70.00th=[ 2500], 80.00th=[ 2500], 90.00th=[ 2500], 95.00th=[ 2500], | 99.00th=[ 2500], 99.50th=[ 2500], 99.90th=[ 2500], 99.95th=[ 2500], | 99.99th=[ 2500] bw ( KiB/s): min= 8047, max= 8047, per=100.00%, avg=8047.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=1.92%, ctx=45, 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=149011: Thu Apr 9 17:09:58 2026 write: IOPS=0, BW=3076KiB/s (3150kB/s)(12.0MiB/3995msec); 0 zone resets clat (msec): min=1188, max=1487, avg=1306.12, stdev=159.39 lat (msec): min=1189, max=1487, avg=1306.63, stdev=159.28 clat percentiles (msec): | 1.00th=[ 1183], 5.00th=[ 1183], 10.00th=[ 1183], 20.00th=[ 1183], | 30.00th=[ 1183], 40.00th=[ 1250], 50.00th=[ 1250], 60.00th=[ 1250], | 70.00th=[ 1485], 80.00th=[ 1485], 90.00th=[ 1485], 95.00th=[ 1485], | 99.00th=[ 1485], 99.50th=[ 1485], 99.90th=[ 1485], 99.95th=[ 1485], | 99.99th=[ 1485] bw ( KiB/s): min= 8078, max= 8126, per=100.00%, avg=8102.00, stdev=33.94, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 2000=100.00% cpu : usr=0.00%, sys=3.51%, ctx=64, 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=149012: Thu Apr 9 17:09:58 2026 write: IOPS=0, BW=3271KiB/s (3349kB/s)(12.0MiB/3757msec); 0 zone resets clat (msec): min=501, max=2070, avg=1192.85, stdev=801.23 lat (msec): min=503, max=2071, avg=1193.77, stdev=800.65 clat percentiles (msec): | 1.00th=[ 502], 5.00th=[ 502], 10.00th=[ 502], 20.00th=[ 502], | 30.00th=[ 502], 40.00th=[ 1003], 50.00th=[ 1003], 60.00th=[ 1003], | 70.00th=[ 2072], 80.00th=[ 2072], 90.00th=[ 2072], 95.00th=[ 2072], | 99.00th=[ 2072], 99.50th=[ 2072], 99.90th=[ 2072], 99.95th=[ 2072], | 99.99th=[ 2072] bw ( KiB/s): min= 7699, max= 8078, per=100.00%, avg=7888.50, stdev=267.99, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=1.46%, ctx=26, 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=3044KiB/s (3117kB/s), 794KiB/s-2283KiB/s (813kB/s-2338kB/s), io=16.0MiB (16.8MB), run=5157-5382msec WRITE: bw=6354KiB/s (6507kB/s), 1589KiB/s-3271KiB/s (1627kB/s-3349kB/s), io=32.0MiB (33.6MB), run=3757-5157msec