== sanity test 398b: DIO and buffer IO race ============== 19:01:39 (1786834899) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 4.89702 s, 10.3 MB/s mix direct rw 4096 by fio with 4 jobs... mix buffer rw 4096 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=144676: Sat Aug 15 19:03:36 2026 read: IOPS=14, BW=59.5KiB/s (60.9kB/s)(5992KiB/100690msec) clat (usec): min=23, max=260911, avg=33075.46, stdev=25303.21 lat (usec): min=23, max=260913, avg=33079.14, stdev=25302.94 clat percentiles (usec): | 1.00th=[ 49], 5.00th=[ 59], 10.00th=[ 9241], 20.00th=[ 15926], | 30.00th=[ 19792], 40.00th=[ 23462], 50.00th=[ 28181], 60.00th=[ 33424], | 70.00th=[ 39584], 80.00th=[ 48497], 90.00th=[ 61080], 95.00th=[ 74974], | 99.00th=[124257], 99.50th=[139461], 99.90th=[252707], 99.95th=[261096], | 99.99th=[261096] bw ( KiB/s): min= 15, max= 143, per=25.20%, avg=59.48, stdev=23.44, samples=198 iops : min= 3, max= 35, avg=14.25, stdev= 5.86, samples=198 write: IOPS=15, BW=62.5KiB/s (64.0kB/s)(6296KiB/100690msec); 0 zone resets clat (usec): min=993, max=624279, avg=32241.00, stdev=36155.50 lat (usec): min=994, max=624281, avg=32245.38, stdev=36157.04 clat percentiles (usec): | 1.00th=[ 1237], 5.00th=[ 1369], 10.00th=[ 1696], 20.00th=[ 3982], | 30.00th=[ 7635], 40.00th=[ 15664], 50.00th=[ 23725], 60.00th=[ 32375], | 70.00th=[ 42730], 80.00th=[ 54264], 90.00th=[ 74974], 95.00th=[ 94897], | 99.00th=[135267], 99.50th=[152044], 99.90th=[434111], 99.95th=[624952], | 99.99th=[624952] bw ( KiB/s): min= 7, max= 135, per=25.28%, avg=62.44, stdev=24.67, samples=198 iops : min= 1, max= 33, avg=14.99, stdev= 6.20, samples=198 lat (usec) : 50=0.62%, 100=3.35%, 250=0.33%, 500=0.03%, 750=0.03% lat (usec) : 1000=0.16% lat (msec) : 2=6.12%, 4=4.20%, 10=7.42%, 20=15.33%, 50=41.80% lat (msec) : 100=17.64%, 250=2.80%, 500=0.13%, 750=0.03% cpu : usr=0.08%, sys=6.48%, ctx=6534, 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=144677: Sat Aug 15 19:03:36 2026 read: IOPS=14, BW=58.6KiB/s (59.0kB/s)(5940KiB/101426msec) clat (usec): min=36, max=324543, avg=33091.93, stdev=25216.81 lat (usec): min=36, max=324544, avg=33094.41, stdev=25216.37 clat percentiles (usec): | 1.00th=[ 47], 5.00th=[ 59], 10.00th=[ 155], 20.00th=[ 15533], | 30.00th=[ 20055], 40.00th=[ 24511], 50.00th=[ 28967], 60.00th=[ 33817], | 70.00th=[ 40109], 80.00th=[ 49021], 90.00th=[ 62129], 95.00th=[ 74974], | 99.00th=[113771], 99.50th=[133694], 99.90th=[248513], 99.95th=[325059], | 99.99th=[325059] bw ( KiB/s): min= 5, max= 127, per=24.57%, avg=57.99, stdev=24.05, samples=200 iops : min= 1, max= 31, avg=13.88, stdev= 6.01, samples=200 write: IOPS=15, BW=62.6KiB/s (64.1kB/s)(6348KiB/101426msec); 0 zone resets clat (usec): min=870, max=628376, avg=32699.62, stdev=35618.83 lat (usec): min=871, max=628378, avg=32704.43, stdev=35618.86 clat percentiles (usec): | 1.00th=[ 1237], 5.00th=[ 1352], 10.00th=[ 1614], 20.00th=[ 3687], | 30.00th=[ 7832], 40.00th=[ 16450], 50.00th=[ 24511], 60.00th=[ 32637], | 70.00th=[ 42730], 80.00th=[ 56361], 90.00th=[ 71828], 95.00th=[ 91751], | 99.00th=[145753], 99.50th=[177210], 99.90th=[248513], 99.95th=[624952], | 99.99th=[624952] bw ( KiB/s): min= 15, max= 136, per=25.18%, avg=62.19, stdev=23.52, samples=199 iops : min= 3, max= 34, avg=14.94, stdev= 5.90, samples=199 lat (usec) : 50=0.72%, 100=3.84%, 250=0.49%, 500=0.03%, 750=0.03% lat (usec) : 1000=0.07% lat (msec) : 2=6.54%, 4=4.43%, 10=7.03%, 20=13.96%, 50=41.57% lat (msec) : 100=18.42%, 250=2.80%, 500=0.03%, 750=0.03% cpu : usr=0.08%, sys=6.60%, ctx=6613, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144679: Sat Aug 15 19:03:36 2026 read: IOPS=14, BW=59.5KiB/s (60.9kB/s)(6028KiB/101332msec) clat (usec): min=23, max=276626, avg=32586.04, stdev=24289.19 lat (usec): min=23, max=276627, avg=32587.85, stdev=24288.77 clat percentiles (usec): | 1.00th=[ 45], 5.00th=[ 59], 10.00th=[ 182], 20.00th=[ 15795], | 30.00th=[ 19792], 40.00th=[ 23725], 50.00th=[ 28181], 60.00th=[ 32900], | 70.00th=[ 39060], 80.00th=[ 49021], 90.00th=[ 62129], 95.00th=[ 74974], | 99.00th=[109577], 99.50th=[137364], 99.90th=[160433], 99.95th=[274727], | 99.99th=[274727] bw ( KiB/s): min= 15, max= 126, per=25.30%, avg=59.71, stdev=22.55, samples=198 iops : min= 3, max= 31, avg=14.32, stdev= 5.67, samples=198 write: IOPS=15, BW=61.8KiB/s (63.3kB/s)(6260KiB/101332msec); 0 zone resets clat (usec): min=802, max=713645, avg=33120.68, stdev=36357.59 lat (usec): min=804, max=713649, avg=33122.50, stdev=36357.53 clat percentiles (usec): | 1.00th=[ 1221], 5.00th=[ 1352], 10.00th=[ 1893], 20.00th=[ 4490], | 30.00th=[ 8356], 40.00th=[ 16909], 50.00th=[ 25822], 60.00th=[ 34341], | 70.00th=[ 43779], 80.00th=[ 54789], 90.00th=[ 73925], 95.00th=[ 89654], | 99.00th=[131597], 99.50th=[183501], 99.90th=[312476], 99.95th=[717226], | 99.99th=[717226] bw ( KiB/s): min= 15, max= 118, per=24.98%, avg=61.69, stdev=22.29, samples=199 iops : min= 3, max= 29, avg=14.81, stdev= 5.60, samples=199 lat (usec) : 50=0.85%, 100=3.91%, 250=0.33%, 500=0.10%, 750=0.03% lat (usec) : 1000=0.10% lat (msec) : 2=5.24%, 4=3.91%, 10=8.07%, 20=14.13%, 50=42.15% lat (msec) : 100=18.78%, 250=2.28%, 500=0.10%, 750=0.03% cpu : usr=0.08%, sys=6.46%, ctx=6514, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144681: Sat Aug 15 19:03:36 2026 read: IOPS=14, BW=59.9KiB/s (61.4kB/s)(6052KiB/101009msec) clat (usec): min=18, max=292494, avg=31647.97, stdev=23507.99 lat (usec): min=19, max=292496, avg=31649.27, stdev=23508.05 clat percentiles (usec): | 1.00th=[ 41], 5.00th=[ 56], 10.00th=[ 69], 20.00th=[ 14877], | 30.00th=[ 19530], 40.00th=[ 23462], 50.00th=[ 28443], 60.00th=[ 33162], | 70.00th=[ 39060], 80.00th=[ 47449], 90.00th=[ 59507], 95.00th=[ 71828], | 99.00th=[104334], 99.50th=[117965], 99.90th=[204473], 99.95th=[291505], | 99.99th=[291505] bw ( KiB/s): min= 7, max= 127, per=25.56%, avg=60.32, stdev=22.24, samples=196 iops : min= 1, max= 31, avg=14.46, stdev= 5.56, samples=196 write: IOPS=15, BW=61.7KiB/s (63.2kB/s)(6236KiB/101009msec); 0 zone resets clat (usec): min=968, max=677908, avg=33806.91, stdev=38953.51 lat (usec): min=969, max=677910, avg=33808.71, stdev=38953.48 clat percentiles (usec): | 1.00th=[ 1205], 5.00th=[ 1352], 10.00th=[ 1680], 20.00th=[ 3884], | 30.00th=[ 7439], 40.00th=[ 16712], 50.00th=[ 25035], 60.00th=[ 32900], | 70.00th=[ 43779], 80.00th=[ 56361], 90.00th=[ 74974], 95.00th=[100140], | 99.00th=[147850], 99.50th=[193987], 99.90th=[434111], 99.95th=[675283], | 99.99th=[675283] bw ( KiB/s): min= 7, max= 127, per=24.91%, avg=61.52, stdev=22.93, samples=198 iops : min= 1, max= 31, avg=14.76, stdev= 5.76, samples=198 lat (usec) : 20=0.03%, 50=1.11%, 100=4.43%, 250=0.10%, 500=0.16% lat (usec) : 750=0.03%, 1000=0.03% lat (msec) : 2=6.35%, 4=4.04%, 10=7.75%, 20=13.61%, 50=41.21% lat (msec) : 100=18.10%, 250=2.90%, 500=0.13%, 750=0.03% cpu : usr=0.08%, sys=6.27%, ctx=6517, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=237KiB/s (242kB/s), 58.6KiB/s-59.9KiB/s (59.0kB/s-61.4kB/s), io=23.4MiB (24.6MB), run=100690-101426msec WRITE: bw=248KiB/s (254kB/s), 61.7KiB/s-62.6KiB/s (63.2kB/s-64.1kB/s), io=24.6MiB (25.7MB), run=100690-101426msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144675: Sat Aug 15 19:05:29 2026 read: IOPS=6, BW=27.9KiB/s (28.6kB/s)(5992KiB/214724msec) clat (msec): min=4, max=851, avg=28.34, stdev=34.66 lat (msec): min=4, max=851, avg=28.34, stdev=34.66 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 8], 10.00th=[ 9], 20.00th=[ 12], | 30.00th=[ 14], 40.00th=[ 16], 50.00th=[ 18], 60.00th=[ 22], | 70.00th=[ 29], 80.00th=[ 37], 90.00th=[ 59], 95.00th=[ 81], | 99.00th=[ 140], 99.50th=[ 178], 99.90th=[ 300], 99.95th=[ 852], | 99.99th=[ 852] bw ( KiB/s): min= 7, max= 95, per=26.67%, avg=29.61, stdev=20.00, samples=393 iops : min= 1, max= 23, avg= 6.82, stdev= 5.03, samples=393 write: IOPS=7, BW=29.3KiB/s (30.0kB/s)(6296KiB/214724msec); 0 zone resets clat (msec): min=29, max=611, avg=109.23, stdev=49.03 lat (msec): min=29, max=611, avg=109.23, stdev=49.03 clat percentiles (msec): | 1.00th=[ 41], 5.00th=[ 51], 10.00th=[ 58], 20.00th=[ 70], | 30.00th=[ 80], 40.00th=[ 89], 50.00th=[ 100], 60.00th=[ 112], | 70.00th=[ 127], 80.00th=[ 144], 90.00th=[ 176], 95.00th=[ 199], | 99.00th=[ 255], 99.50th=[ 279], 99.90th=[ 523], 99.95th=[ 609], | 99.99th=[ 609] bw ( KiB/s): min= 7, max= 71, per=24.66%, avg=28.86, stdev=12.43, samples=423 iops : min= 1, max= 17, avg= 6.62, stdev= 3.20, samples=423 lat (msec) : 10=6.77%, 20=19.92%, 50=17.61%, 100=29.04%, 250=25.94% lat (msec) : 500=0.62%, 750=0.07%, 1000=0.03% cpu : usr=0.05%, sys=1.56%, ctx=5230, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=144678: Sat Aug 15 19:05:29 2026 read: IOPS=6, BW=27.7KiB/s (28.3kB/s)(5940KiB/214596msec) clat (msec): min=5, max=663, avg=28.77, stdev=31.86 lat (msec): min=5, max=663, avg=28.78, stdev=31.86 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 8], 10.00th=[ 10], 20.00th=[ 12], | 30.00th=[ 14], 40.00th=[ 16], 50.00th=[ 19], 60.00th=[ 23], | 70.00th=[ 29], 80.00th=[ 39], 90.00th=[ 62], 95.00th=[ 85], | 99.00th=[ 138], 99.50th=[ 180], 99.90th=[ 218], 99.95th=[ 667], | 99.99th=[ 667] bw ( KiB/s): min= 7, max= 96, per=26.45%, avg=29.36, stdev=19.03, samples=393 iops : min= 1, max= 24, avg= 6.75, stdev= 4.81, samples=393 write: IOPS=7, BW=29.6KiB/s (30.3kB/s)(6348KiB/214596msec); 0 zone resets clat (msec): min=25, max=501, avg=108.07, stdev=49.61 lat (msec): min=25, max=501, avg=108.07, stdev=49.61 clat percentiles (msec): | 1.00th=[ 42], 5.00th=[ 50], 10.00th=[ 59], 20.00th=[ 69], | 30.00th=[ 78], 40.00th=[ 87], 50.00th=[ 96], 60.00th=[ 109], | 70.00th=[ 124], 80.00th=[ 142], 90.00th=[ 171], 95.00th=[ 201], | 99.00th=[ 264], 99.50th=[ 305], 99.90th=[ 489], 99.95th=[ 502], | 99.99th=[ 502] bw ( KiB/s): min= 7, max= 71, per=24.91%, avg=29.14, stdev=12.51, samples=423 iops : min= 1, max= 17, avg= 6.70, stdev= 3.22, samples=423 lat (msec) : 10=6.05%, 20=20.67%, 50=17.51%, 100=29.72%, 250=25.36% lat (msec) : 500=0.62%, 750=0.07% cpu : usr=0.04%, sys=1.58%, ctx=5233, 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=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=144680: Sat Aug 15 19:05:29 2026 read: IOPS=7, BW=28.2KiB/s (28.9kB/s)(6028KiB/213660msec) clat (msec): min=4, max=242, avg=28.84, stdev=27.74 lat (msec): min=4, max=242, avg=28.84, stdev=27.74 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 8], 10.00th=[ 10], 20.00th=[ 12], | 30.00th=[ 14], 40.00th=[ 17], 50.00th=[ 20], 60.00th=[ 23], | 70.00th=[ 29], 80.00th=[ 40], 90.00th=[ 63], 95.00th=[ 82], | 99.00th=[ 140], 99.50th=[ 203], 99.90th=[ 232], 99.95th=[ 243], | 99.99th=[ 243] bw ( KiB/s): min= 7, max= 95, per=26.11%, avg=28.98, stdev=18.93, samples=404 iops : min= 1, max= 23, avg= 6.66, stdev= 4.80, samples=404 write: IOPS=7, BW=29.3KiB/s (30.0kB/s)(6260KiB/213660msec); 0 zone resets clat (msec): min=27, max=706, avg=108.54, stdev=50.44 lat (msec): min=27, max=706, avg=108.54, stdev=50.43 clat percentiles (msec): | 1.00th=[ 40], 5.00th=[ 51], 10.00th=[ 59], 20.00th=[ 69], | 30.00th=[ 79], 40.00th=[ 87], 50.00th=[ 99], 60.00th=[ 110], | 70.00th=[ 126], 80.00th=[ 144], 90.00th=[ 169], 95.00th=[ 199], | 99.00th=[ 262], 99.50th=[ 288], 99.90th=[ 485], 99.95th=[ 709], | 99.99th=[ 709] bw ( KiB/s): min= 7, max= 64, per=24.74%, avg=28.94, stdev=12.61, samples=420 iops : min= 1, max= 16, avg= 6.64, stdev= 3.24, samples=420 lat (msec) : 10=6.32%, 20=18.88%, 50=18.98%, 100=29.95%, 250=25.23% lat (msec) : 500=0.62%, 750=0.03% cpu : usr=0.04%, sys=1.57%, ctx=5187, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144682: Sat Aug 15 19:05:29 2026 read: IOPS=7, BW=28.5KiB/s (29.2kB/s)(6052KiB/212133msec) clat (msec): min=5, max=298, avg=27.34, stdev=26.01 lat (msec): min=5, max=298, avg=27.35, stdev=26.01 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 12], | 30.00th=[ 14], 40.00th=[ 17], 50.00th=[ 19], 60.00th=[ 23], | 70.00th=[ 28], 80.00th=[ 37], 90.00th=[ 58], 95.00th=[ 75], | 99.00th=[ 126], 99.50th=[ 171], 99.90th=[ 247], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 7, max= 103, per=27.43%, avg=30.45, stdev=19.55, samples=387 iops : min= 1, max= 25, avg= 7.03, stdev= 4.96, samples=387 write: IOPS=7, BW=29.4KiB/s (30.1kB/s)(6236KiB/212133msec); 0 zone resets clat (msec): min=33, max=699, avg=109.31, stdev=52.65 lat (msec): min=33, max=699, avg=109.31, stdev=52.65 clat percentiles (msec): | 1.00th=[ 41], 5.00th=[ 51], 10.00th=[ 59], 20.00th=[ 70], | 30.00th=[ 79], 40.00th=[ 88], 50.00th=[ 99], 60.00th=[ 109], | 70.00th=[ 124], 80.00th=[ 142], 90.00th=[ 176], 95.00th=[ 199], | 99.00th=[ 275], 99.50th=[ 338], 99.90th=[ 617], 99.95th=[ 701], | 99.99th=[ 701] bw ( KiB/s): min= 7, max= 64, per=24.70%, avg=28.89, stdev=12.21, samples=419 iops : min= 1, max= 16, avg= 6.63, stdev= 3.13, samples=419 lat (msec) : 10=5.99%, 20=20.67%, 50=18.62%, 100=29.17%, 250=24.80% lat (msec) : 500=0.65%, 750=0.10% cpu : usr=0.05%, sys=1.60%, ctx=5190, 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=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=112KiB/s (115kB/s), 27.7KiB/s-28.5KiB/s (28.3kB/s-29.2kB/s), io=23.4MiB (24.6MB), run=212133-214724msec WRITE: bw=117KiB/s (120kB/s), 29.3KiB/s-29.6KiB/s (30.0kB/s-30.3kB/s), io=24.6MiB (25.7MB), run=212133-214724msec 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=144737: Sat Aug 15 19:06:00 2026 read: IOPS=17, BW=281KiB/s (288kB/s)(5920KiB/21052msec) clat (usec): min=32, max=191039, avg=28191.98, stdev=23720.46 lat (usec): min=32, max=191040, avg=28193.18, stdev=23720.52 clat percentiles (usec): | 1.00th=[ 39], 5.00th=[ 50], 10.00th=[ 61], 20.00th=[ 82], | 30.00th=[ 16188], 40.00th=[ 21890], 50.00th=[ 27132], 60.00th=[ 31327], | 70.00th=[ 39060], 80.00th=[ 46924], 90.00th=[ 57410], 95.00th=[ 63701], | 99.00th=[102237], 99.50th=[112722], 99.90th=[191890], 99.95th=[191890], | 99.99th=[191890] bw ( KiB/s): min= 156, max= 605, per=25.73%, avg=281.24, stdev=91.85, samples=41 iops : min= 9, max= 37, avg=16.85, stdev= 5.73, samples=41 write: IOPS=18, BW=302KiB/s (310kB/s)(6368KiB/21052msec); 0 zone resets clat (usec): min=1432, max=153427, avg=26565.21, stdev=25809.41 lat (usec): min=1434, max=153429, avg=26567.36, stdev=25809.41 clat percentiles (usec): | 1.00th=[ 1680], 5.00th=[ 2008], 10.00th=[ 2802], 20.00th=[ 4948], | 30.00th=[ 7570], 40.00th=[ 11076], 50.00th=[ 18482], 60.00th=[ 26346], | 70.00th=[ 36439], 80.00th=[ 47449], 90.00th=[ 61080], 95.00th=[ 77071], | 99.00th=[120062], 99.50th=[152044], 99.90th=[154141], 99.95th=[154141], | 99.99th=[154141] bw ( KiB/s): min= 127, max= 544, per=26.34%, avg=302.90, stdev=100.27, samples=41 iops : min= 7, max= 34, avg=18.22, stdev= 6.39, samples=41 lat (usec) : 50=2.34%, 100=7.94%, 250=0.78%, 500=0.13%, 750=0.26% lat (usec) : 1000=0.26% lat (msec) : 2=2.60%, 4=5.34%, 10=12.50%, 20=12.76%, 50=38.41% lat (msec) : 100=15.49%, 250=1.17% cpu : usr=0.10%, sys=7.52%, ctx=1394, 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=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=144739: Sat Aug 15 19:06:00 2026 read: IOPS=16, BW=264KiB/s (270kB/s)(5744KiB/21778msec) clat (usec): min=39, max=306030, avg=30913.51, stdev=28013.44 lat (usec): min=39, max=306031, avg=30953.88, stdev=28006.24 clat percentiles (usec): | 1.00th=[ 41], 5.00th=[ 55], 10.00th=[ 62], 20.00th=[ 83], | 30.00th=[ 18220], 40.00th=[ 24249], 50.00th=[ 28705], 60.00th=[ 34341], | 70.00th=[ 40109], 80.00th=[ 47973], 90.00th=[ 61604], 95.00th=[ 72877], | 99.00th=[101188], 99.50th=[126354], 99.90th=[304088], 99.95th=[304088], | 99.99th=[304088] bw ( KiB/s): min= 22, max= 443, per=24.26%, avg=265.17, stdev=90.53, samples=42 iops : min= 1, max= 27, avg=15.83, stdev= 5.68, samples=42 write: IOPS=18, BW=300KiB/s (308kB/s)(6544KiB/21778msec); 0 zone resets clat (usec): min=1480, max=183161, avg=25514.29, stdev=27381.06 lat (usec): min=1481, max=183163, avg=25516.58, stdev=27381.07 clat percentiles (usec): | 1.00th=[ 1647], 5.00th=[ 1827], 10.00th=[ 2311], 20.00th=[ 4080], | 30.00th=[ 6390], 40.00th=[ 9110], 50.00th=[ 14746], 60.00th=[ 23462], | 70.00th=[ 34341], 80.00th=[ 44303], 90.00th=[ 63177], 95.00th=[ 73925], | 99.00th=[111674], 99.50th=[123208], 99.90th=[183501], 99.95th=[183501], | 99.99th=[183501] bw ( KiB/s): min= 67, max= 475, per=26.24%, avg=301.74, stdev=93.91, samples=42 iops : min= 4, max= 29, avg=18.14, stdev= 5.87, samples=42 lat (usec) : 50=1.30%, 100=8.46%, 250=0.91%, 1000=0.13% lat (msec) : 2=4.56%, 4=5.86%, 10=12.50%, 20=11.98%, 50=36.98% lat (msec) : 100=15.49%, 250=1.69%, 500=0.13% cpu : usr=0.11%, sys=7.79%, ctx=1485, 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=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=144741: Sat Aug 15 19:06:00 2026 read: IOPS=17, BW=286KiB/s (292kB/s)(6256KiB/21911msec) clat (usec): min=38, max=140990, avg=29519.10, stdev=23783.08 lat (usec): min=38, max=140990, avg=29520.52, stdev=23783.26 clat percentiles (usec): | 1.00th=[ 42], 5.00th=[ 53], 10.00th=[ 61], 20.00th=[ 89], | 30.00th=[ 17171], 40.00th=[ 23200], 50.00th=[ 27657], 60.00th=[ 33817], | 70.00th=[ 40109], 80.00th=[ 49021], 90.00th=[ 58459], 95.00th=[ 70779], | 99.00th=[ 94897], 99.50th=[132645], 99.90th=[141558], 99.95th=[141558], | 99.99th=[141558] bw ( KiB/s): min= 128, max= 471, per=26.30%, avg=287.43, stdev=71.82, samples=42 iops : min= 8, max= 29, avg=17.24, stdev= 4.50, samples=42 write: IOPS=17, BW=275KiB/s (282kB/s)(6032KiB/21911msec); 0 zone resets clat (usec): min=1548, max=180921, avg=27130.40, stdev=27275.48 lat (usec): min=1550, max=180922, avg=27132.94, stdev=27277.16 clat percentiles (usec): | 1.00th=[ 1663], 5.00th=[ 1909], 10.00th=[ 2474], 20.00th=[ 4948], | 30.00th=[ 8094], 40.00th=[ 11469], 50.00th=[ 18220], 60.00th=[ 26870], | 70.00th=[ 33817], 80.00th=[ 47449], 90.00th=[ 65799], 95.00th=[ 74974], | 99.00th=[115868], 99.50th=[166724], 99.90th=[181404], 99.95th=[181404], | 99.99th=[181404] bw ( KiB/s): min= 63, max= 443, per=23.79%, avg=273.62, stdev=93.77, samples=42 iops : min= 3, max= 27, avg=16.36, stdev= 5.93, samples=42 lat (usec) : 50=1.95%, 100=8.72%, 250=0.26%, 500=0.26%, 750=0.13% lat (usec) : 1000=0.26% lat (msec) : 2=3.52%, 4=4.69%, 10=10.94%, 20=11.98%, 50=38.93% lat (msec) : 100=17.19%, 250=1.17% cpu : usr=0.11%, sys=7.51%, ctx=1479, 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=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=144742: Sat Aug 15 19:06:00 2026 read: IOPS=17, BW=278KiB/s (285kB/s)(6032KiB/21661msec) clat (usec): min=36, max=159705, avg=29251.58, stdev=25720.10 lat (usec): min=36, max=159707, avg=29257.96, stdev=25720.82 clat percentiles (usec): | 1.00th=[ 42], 5.00th=[ 53], 10.00th=[ 59], 20.00th=[ 76], | 30.00th=[ 15926], 40.00th=[ 22414], 50.00th=[ 26870], 60.00th=[ 32113], | 70.00th=[ 39584], 80.00th=[ 47973], 90.00th=[ 62129], 95.00th=[ 73925], | 99.00th=[113771], 99.50th=[154141], 99.90th=[160433], 99.95th=[160433], | 99.99th=[160433] bw ( KiB/s): min= 22, max= 475, per=25.42%, avg=277.86, stdev=90.05, samples=42 iops : min= 1, max= 29, avg=16.64, stdev= 5.65, samples=42 write: IOPS=18, BW=289KiB/s (296kB/s)(6256KiB/21661msec); 0 zone resets clat (usec): min=1472, max=190116, avg=26703.77, stdev=29982.91 lat (usec): min=1474, max=190120, avg=26707.36, stdev=29981.96 clat percentiles (usec): | 1.00th=[ 1582], 5.00th=[ 1811], 10.00th=[ 2245], 20.00th=[ 3621], | 30.00th=[ 6325], 40.00th=[ 8717], 50.00th=[ 14746], 60.00th=[ 24249], | 70.00th=[ 34341], 80.00th=[ 44303], 90.00th=[ 70779], 95.00th=[ 86508], | 99.00th=[141558], 99.50th=[175113], 99.90th=[189793], 99.95th=[189793], | 99.99th=[189793] bw ( KiB/s): min= 89, max= 510, per=25.16%, avg=289.36, stdev=90.09, samples=42 iops : min= 5, max= 31, avg=17.36, stdev= 5.68, samples=42 lat (usec) : 50=1.82%, 100=10.42%, 250=0.52% lat (msec) : 2=4.95%, 4=6.38%, 10=10.68%, 20=11.59%, 50=36.07% lat (msec) : 100=15.89%, 250=1.69% cpu : usr=0.10%, sys=7.84%, ctx=1378, majf=0, minf=19 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=1093KiB/s (1119kB/s), 264KiB/s-286KiB/s (270kB/s-292kB/s), io=23.4MiB (24.5MB), run=21052-21911msec WRITE: bw=1150KiB/s (1178kB/s), 275KiB/s-302KiB/s (282kB/s-310kB/s), io=24.6MiB (25.8MB), run=21052-21911msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144735: Sat Aug 15 19:06:28 2026 read: IOPS=7, BW=121KiB/s (124kB/s)(5920KiB/49062msec) clat (msec): min=6, max=276, avg=28.63, stdev=28.03 lat (msec): min=6, max=276, avg=28.63, stdev=28.03 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 15], 40.00th=[ 17], 50.00th=[ 20], 60.00th=[ 24], | 70.00th=[ 29], 80.00th=[ 36], 90.00th=[ 57], 95.00th=[ 84], | 99.00th=[ 148], 99.50th=[ 180], 99.90th=[ 275], 99.95th=[ 275], | 99.99th=[ 275] bw ( KiB/s): min= 31, max= 318, per=27.24%, avg=130.19, stdev=72.36, samples=88 iops : min= 1, max= 19, avg= 7.49, stdev= 4.63, samples=88 write: IOPS=8, BW=130KiB/s (133kB/s)(6368KiB/49062msec); 0 zone resets clat (msec): min=28, max=307, avg=96.41, stdev=48.77 lat (msec): min=28, max=307, avg=96.42, stdev=48.77 clat percentiles (msec): | 1.00th=[ 38], 5.00th=[ 46], 10.00th=[ 51], 20.00th=[ 60], | 30.00th=[ 66], 40.00th=[ 73], 50.00th=[ 80], 60.00th=[ 91], | 70.00th=[ 106], 80.00th=[ 129], 90.00th=[ 171], 95.00th=[ 201], | 99.00th=[ 275], 99.50th=[ 300], 99.90th=[ 309], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 31, max= 256, per=25.70%, avg=129.25, stdev=61.03, samples=96 iops : min= 1, max= 16, avg= 7.42, stdev= 3.94, samples=96 lat (msec) : 10=4.43%, 20=19.79%, 50=22.92%, 100=34.51%, 250=17.58% lat (msec) : 500=0.78% cpu : usr=0.06%, sys=1.90%, ctx=1381, 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=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=144736: Sat Aug 15 19:06:28 2026 read: IOPS=7, BW=115KiB/s (118kB/s)(5744KiB/50027msec) clat (msec): min=6, max=174, avg=27.25, stdev=25.70 lat (msec): min=6, max=174, avg=27.25, stdev=25.70 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 12], | 30.00th=[ 13], 40.00th=[ 16], 50.00th=[ 18], 60.00th=[ 22], | 70.00th=[ 28], 80.00th=[ 35], 90.00th=[ 62], 95.00th=[ 78], | 99.00th=[ 148], 99.50th=[ 155], 99.90th=[ 176], 99.95th=[ 176], | 99.99th=[ 176] bw ( KiB/s): min= 22, max= 319, per=26.82%, avg=128.22, stdev=74.66, samples=87 iops : min= 1, max= 19, avg= 7.36, stdev= 4.69, samples=87 write: IOPS=8, BW=131KiB/s (134kB/s)(6544KiB/50027msec); 0 zone resets clat (msec): min=26, max=288, avg=97.96, stdev=49.13 lat (msec): min=26, max=289, avg=97.96, stdev=49.13 clat percentiles (msec): | 1.00th=[ 40], 5.00th=[ 44], 10.00th=[ 51], 20.00th=[ 61], | 30.00th=[ 68], 40.00th=[ 75], 50.00th=[ 83], 60.00th=[ 92], | 70.00th=[ 110], 80.00th=[ 136], 90.00th=[ 174], 95.00th=[ 203], | 99.00th=[ 253], 99.50th=[ 271], 99.90th=[ 288], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 31, max= 256, per=26.00%, avg=130.80, stdev=57.67, samples=97 iops : min= 1, max= 16, avg= 7.53, stdev= 3.75, samples=97 lat (msec) : 10=5.21%, 20=20.70%, 50=20.05%, 100=33.72%, 250=19.66% lat (msec) : 500=0.65% cpu : usr=0.04%, sys=1.94%, ctx=1470, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144738: Sat Aug 15 19:06:28 2026 read: IOPS=8, BW=129KiB/s (132kB/s)(6256KiB/48492msec) clat (msec): min=4, max=268, avg=26.73, stdev=26.14 lat (msec): min=4, max=268, avg=26.74, stdev=26.14 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 8], 10.00th=[ 9], 20.00th=[ 12], | 30.00th=[ 14], 40.00th=[ 16], 50.00th=[ 19], 60.00th=[ 22], | 70.00th=[ 28], 80.00th=[ 34], 90.00th=[ 59], 95.00th=[ 77], | 99.00th=[ 125], 99.50th=[ 159], 99.90th=[ 271], 99.95th=[ 271], | 99.99th=[ 271] bw ( KiB/s): min= 30, max= 415, per=27.77%, avg=132.72, stdev=93.23, samples=93 iops : min= 1, max= 25, avg= 7.65, stdev= 5.94, samples=93 write: IOPS=7, BW=124KiB/s (127kB/s)(6032KiB/48492msec); 0 zone resets clat (msec): min=30, max=408, avg=100.43, stdev=54.74 lat (msec): min=30, max=408, avg=100.44, stdev=54.74 clat percentiles (msec): | 1.00th=[ 38], 5.00th=[ 45], 10.00th=[ 52], 20.00th=[ 61], | 30.00th=[ 67], 40.00th=[ 73], 50.00th=[ 83], 60.00th=[ 93], | 70.00th=[ 109], 80.00th=[ 136], 90.00th=[ 184], 95.00th=[ 211], | 99.00th=[ 284], 99.50th=[ 321], 99.90th=[ 409], 99.95th=[ 409], | 99.99th=[ 409] bw ( KiB/s): min= 31, max= 224, per=24.55%, avg=123.49, stdev=56.93, samples=95 iops : min= 1, max= 14, avg= 7.05, stdev= 3.70, samples=95 lat (msec) : 10=7.16%, 20=21.61%, 50=20.31%, 100=32.03%, 250=17.71% lat (msec) : 500=1.17% cpu : usr=0.06%, sys=1.89%, ctx=1476, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144740: Sat Aug 15 19:06:28 2026 read: IOPS=7, BW=122KiB/s (125kB/s)(6032KiB/49346msec) clat (msec): min=6, max=205, avg=28.71, stdev=29.15 lat (msec): min=6, max=205, avg=28.72, stdev=29.15 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 12], | 30.00th=[ 14], 40.00th=[ 16], 50.00th=[ 18], 60.00th=[ 23], | 70.00th=[ 27], 80.00th=[ 38], 90.00th=[ 62], 95.00th=[ 86], | 99.00th=[ 159], 99.50th=[ 165], 99.90th=[ 205], 99.95th=[ 205], | 99.99th=[ 205] bw ( KiB/s): min= 31, max= 412, per=26.88%, avg=128.48, stdev=80.18, samples=92 iops : min= 1, max= 25, avg= 7.37, stdev= 5.06, samples=92 write: IOPS=7, BW=127KiB/s (130kB/s)(6256KiB/49346msec); 0 zone resets clat (msec): min=33, max=348, avg=98.13, stdev=50.52 lat (msec): min=33, max=349, avg=98.13, stdev=50.52 clat percentiles (msec): | 1.00th=[ 37], 5.00th=[ 45], 10.00th=[ 50], 20.00th=[ 58], | 30.00th=[ 64], 40.00th=[ 75], 50.00th=[ 84], 60.00th=[ 95], | 70.00th=[ 111], 80.00th=[ 138], 90.00th=[ 174], 95.00th=[ 201], | 99.00th=[ 255], 99.50th=[ 305], 99.90th=[ 351], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 31, max= 224, per=25.74%, avg=129.47, stdev=57.47, samples=95 iops : min= 1, max= 14, avg= 7.43, stdev= 3.73, samples=95 lat (msec) : 10=7.03%, 20=20.05%, 50=20.18%, 100=32.81%, 250=19.40% lat (msec) : 500=0.52% cpu : usr=0.06%, sys=1.88%, ctx=1435, 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=479KiB/s (490kB/s), 115KiB/s-129KiB/s (118kB/s-132kB/s), io=23.4MiB (24.5MB), run=48492-50027msec WRITE: bw=504KiB/s (516kB/s), 124KiB/s-131KiB/s (127kB/s-134kB/s), io=24.6MiB (25.8MB), run=48492-50027msec 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=144755: Sat Aug 15 19:06:37 2026 read: IOPS=2, BW=2459KiB/s (2518kB/s)(7168KiB/2915msec) clat (usec): min=498, max=437682, avg=164226.85, stdev=152181.48 lat (usec): min=500, max=437683, avg=164228.15, stdev=152181.43 clat percentiles (usec): | 1.00th=[ 498], 5.00th=[ 498], 10.00th=[ 498], 20.00th=[ 553], | 30.00th=[127402], 40.00th=[127402], 50.00th=[135267], 60.00th=[196084], | 70.00th=[196084], 80.00th=[250610], 90.00th=[438305], 95.00th=[438305], | 99.00th=[438305], 99.50th=[438305], 99.90th=[438305], 99.95th=[438305], | 99.99th=[438305] bw ( KiB/s): min= 4071, max= 5907, per=89.46%, avg=4989.00, stdev=1298.25, samples=2 iops : min= 3, max= 5, avg= 4.00, stdev= 1.41, samples=2 write: IOPS=1, BW=1756KiB/s (1799kB/s)(5120KiB/2915msec); 0 zone resets clat (msec): min=205, max=594, avg=346.82, stdev=150.58 lat (msec): min=205, max=594, avg=347.15, stdev=150.63 clat percentiles (msec): | 1.00th=[ 207], 5.00th=[ 207], 10.00th=[ 207], 20.00th=[ 207], | 30.00th=[ 255], 40.00th=[ 255], 50.00th=[ 317], 60.00th=[ 317], | 70.00th=[ 363], 80.00th=[ 363], 90.00th=[ 592], 95.00th=[ 592], | 99.00th=[ 592], 99.50th=[ 592], 99.90th=[ 592], 99.95th=[ 592], | 99.99th=[ 592] bw ( KiB/s): min= 2035, max= 3961, per=38.40%, avg=2998.00, stdev=1361.89, samples=2 iops : min= 1, max= 3, avg= 2.00, stdev= 1.41, samples=2 lat (usec) : 500=8.33%, 750=8.33% lat (msec) : 250=33.33%, 500=41.67%, 750=8.33% cpu : usr=0.07%, sys=16.78%, ctx=215, 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=144756: Sat Aug 15 19:06:37 2026 read: IOPS=0, BW=558KiB/s (571kB/s)(2048KiB/3672msec) clat (usec): min=504, max=104316, avg=52410.49, stdev=73405.83 lat (usec): min=505, max=104318, avg=52412.16, stdev=73406.78 clat percentiles (usec): | 1.00th=[ 506], 5.00th=[ 506], 10.00th=[ 506], 20.00th=[ 506], | 30.00th=[ 506], 40.00th=[ 506], 50.00th=[ 506], 60.00th=[104334], | 70.00th=[104334], 80.00th=[104334], 90.00th=[104334], 95.00th=[104334], | 99.00th=[104334], 99.50th=[104334], 99.90th=[104334], 99.95th=[104334], | 99.99th=[104334] bw ( KiB/s): min= 1378, max= 1957, per=29.90%, avg=1667.50, stdev=409.41, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2789KiB/s (2856kB/s)(10.0MiB/3672msec); 0 zone resets clat (msec): min=88, max=773, avg=352.91, stdev=218.52 lat (msec): min=88, max=773, avg=352.98, stdev=218.52 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 89], 10.00th=[ 89], 20.00th=[ 176], | 30.00th=[ 186], 40.00th=[ 262], 50.00th=[ 262], 60.00th=[ 284], | 70.00th=[ 418], 80.00th=[ 435], 90.00th=[ 651], 95.00th=[ 776], | 99.00th=[ 776], 99.50th=[ 776], 99.90th=[ 776], 99.95th=[ 776], | 99.99th=[ 776] bw ( KiB/s): min= 3915, max= 4079, per=51.61%, avg=4030.00, stdev=77.04, samples=4 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=4 lat (usec) : 750=8.33% lat (msec) : 100=8.33%, 250=25.00%, 500=41.67%, 750=8.33%, 1000=8.33% cpu : usr=0.03%, sys=15.28%, ctx=137, 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=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=144757: Sat Aug 15 19:06:37 2026 read: IOPS=2, BW=2263KiB/s (2317kB/s)(6144KiB/2715msec) clat (usec): min=553, max=259696, avg=69178.56, stdev=111136.32 lat (usec): min=554, max=259697, avg=69179.40, stdev=111136.02 clat percentiles (usec): | 1.00th=[ 553], 5.00th=[ 553], 10.00th=[ 553], 20.00th=[ 611], | 30.00th=[ 611], 40.00th=[ 717], 50.00th=[ 717], 60.00th=[ 1762], | 70.00th=[152044], 80.00th=[152044], 90.00th=[258999], 95.00th=[258999], | 99.00th=[258999], 99.50th=[258999], 99.90th=[258999], 99.95th=[258999], | 99.99th=[258999] bw ( KiB/s): min= 1980, max= 4079, per=60.55%, avg=3376.67, stdev=1209.56, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=2, BW=2263KiB/s (2317kB/s)(6144KiB/2715msec); 0 zone resets clat (msec): min=140, max=910, avg=372.45, stdev=275.84 lat (msec): min=140, max=910, avg=372.53, stdev=275.86 clat percentiles (msec): | 1.00th=[ 142], 5.00th=[ 142], 10.00th=[ 142], 20.00th=[ 226], | 30.00th=[ 226], 40.00th=[ 253], 50.00th=[ 253], 60.00th=[ 334], | 70.00th=[ 372], 80.00th=[ 372], 90.00th=[ 911], 95.00th=[ 911], | 99.00th=[ 911], 99.50th=[ 911], 99.90th=[ 911], 99.95th=[ 911], | 99.99th=[ 911] bw ( KiB/s): min= 1980, max= 2039, per=25.93%, avg=2024.80, stdev=25.10, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (usec) : 750=25.00% lat (msec) : 2=8.33%, 250=25.00%, 500=33.33%, 1000=8.33% cpu : usr=0.00%, sys=14.48%, ctx=164, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144758: Sat Aug 15 19:06:37 2026 read: IOPS=1, BW=1777KiB/s (1819kB/s)(5120KiB/2882msec) clat (usec): min=443, max=373136, avg=138433.80, stdev=189907.15 lat (usec): min=444, max=373137, avg=138435.14, stdev=189907.50 clat percentiles (usec): | 1.00th=[ 445], 5.00th=[ 445], 10.00th=[ 445], 20.00th=[ 445], | 30.00th=[ 465], 40.00th=[ 465], 50.00th=[ 562], 60.00th=[ 562], | 70.00th=[316670], 80.00th=[316670], 90.00th=[371196], 95.00th=[371196], | 99.00th=[371196], 99.50th=[371196], 99.90th=[371196], 99.95th=[371196], | 99.99th=[371196] bw ( KiB/s): min= 2031, max= 6131, per=73.18%, avg=4081.00, stdev=2899.14, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=2, BW=2487KiB/s (2547kB/s)(7168KiB/2882msec); 0 zone resets clat (msec): min=141, max=554, avg=304.88, stdev=141.19 lat (msec): min=141, max=554, avg=304.96, stdev=141.16 clat percentiles (msec): | 1.00th=[ 142], 5.00th=[ 142], 10.00th=[ 142], 20.00th=[ 207], | 30.00th=[ 234], 40.00th=[ 234], 50.00th=[ 249], 60.00th=[ 334], | 70.00th=[ 334], 80.00th=[ 414], 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= 1398, max= 6119, per=48.80%, avg=3810.67, stdev=2362.23, samples=3 iops : min= 1, max= 5, avg= 3.00, stdev= 2.00, samples=3 lat (usec) : 500=16.67%, 750=8.33% lat (msec) : 250=33.33%, 500=33.33%, 750=8.33% cpu : usr=0.00%, sys=18.60%, ctx=158, 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=5577KiB/s (5711kB/s), 558KiB/s-2459KiB/s (571kB/s-2518kB/s), io=20.0MiB (20.0MB), run=2715-3672msec WRITE: bw=7808KiB/s (7996kB/s), 1756KiB/s-2789KiB/s (1799kB/s-2856kB/s), io=28.0MiB (29.4MB), run=2715-3672msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144760: Sat Aug 15 19:06:38 2026 read: IOPS=1, BW=2038KiB/s (2087kB/s)(7168KiB/3517msec) clat (msec): min=71, max=651, avg=319.28, stdev=238.95 lat (msec): min=71, max=651, avg=319.28, stdev=238.95 clat percentiles (msec): | 1.00th=[ 71], 5.00th=[ 71], 10.00th=[ 71], 20.00th=[ 102], | 30.00th=[ 205], 40.00th=[ 205], 50.00th=[ 222], 60.00th=[ 351], | 70.00th=[ 351], 80.00th=[ 634], 90.00th=[ 651], 95.00th=[ 651], | 99.00th=[ 651], 99.50th=[ 651], 99.90th=[ 651], 99.95th=[ 651], | 99.99th=[ 651] bw ( KiB/s): min= 1481, max= 2048, per=35.24%, avg=1932.83, stdev=221.94, samples=6 iops : min= 1, max= 2, avg= 1.17, stdev= 0.41, samples=6 write: IOPS=1, BW=1456KiB/s (1491kB/s)(5120KiB/3517msec); 0 zone resets clat (msec): min=154, max=420, avg=246.71, stdev=106.34 lat (msec): min=154, max=421, avg=246.81, stdev=106.34 clat percentiles (msec): | 1.00th=[ 155], 5.00th=[ 155], 10.00th=[ 155], 20.00th=[ 155], | 30.00th=[ 184], 40.00th=[ 184], 50.00th=[ 205], 60.00th=[ 205], | 70.00th=[ 271], 80.00th=[ 271], 90.00th=[ 422], 95.00th=[ 422], | 99.00th=[ 422], 99.50th=[ 422], 99.90th=[ 422], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 2007, max= 4071, per=35.28%, avg=2708.67, stdev=1179.99, samples=3 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=3 lat (msec) : 100=8.33%, 250=50.00%, 500=25.00%, 750=16.67% cpu : usr=0.00%, sys=5.55%, ctx=78, 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=144761: Sat Aug 15 19:06:38 2026 read: IOPS=0, BW=570KiB/s (584kB/s)(2048KiB/3593msec) clat (usec): min=76683, max=93228, avg=84956.27, stdev=11699.10 lat (usec): min=76686, max=93229, avg=84958.24, stdev=11697.84 clat percentiles (usec): | 1.00th=[77071], 5.00th=[77071], 10.00th=[77071], 20.00th=[77071], | 30.00th=[77071], 40.00th=[77071], 50.00th=[77071], 60.00th=[92799], | 70.00th=[92799], 80.00th=[92799], 90.00th=[92799], 95.00th=[92799], | 99.00th=[92799], 99.50th=[92799], 99.90th=[92799], 99.95th=[92799], | 99.99th=[92799] bw ( KiB/s): min= 1464, max= 2048, per=32.02%, avg=1756.00, stdev=412.95, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 write: IOPS=2, BW=2850KiB/s (2918kB/s)(10.0MiB/3593msec); 0 zone resets clat (msec): min=86, max=1236, avg=336.04, stdev=331.59 lat (msec): min=86, max=1236, avg=337.15, stdev=331.18 clat percentiles (msec): | 1.00th=[ 87], 5.00th=[ 87], 10.00th=[ 87], 20.00th=[ 121], | 30.00th=[ 184], 40.00th=[ 215], 50.00th=[ 218], 60.00th=[ 251], | 70.00th=[ 305], 80.00th=[ 321], 90.00th=[ 430], 95.00th=[ 1234], | 99.00th=[ 1234], 99.50th=[ 1234], 99.90th=[ 1234], 99.95th=[ 1234], | 99.99th=[ 1234] bw ( KiB/s): min= 2007, max= 6107, per=52.91%, avg=4062.25, stdev=1673.99, samples=4 iops : min= 1, max= 5, avg= 3.25, stdev= 1.71, samples=4 lat (msec) : 100=25.00%, 250=33.33%, 500=33.33%, 2000=8.33% cpu : usr=0.03%, sys=5.85%, ctx=85, 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=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=144762: Sat Aug 15 19:06:38 2026 read: IOPS=1, BW=1718KiB/s (1759kB/s)(6144KiB/3576msec) clat (msec): min=63, max=195, avg=138.16, stdev=49.77 lat (msec): min=63, max=195, avg=138.17, stdev=49.77 clat percentiles (msec): | 1.00th=[ 64], 5.00th=[ 64], 10.00th=[ 64], 20.00th=[ 120], | 30.00th=[ 120], 40.00th=[ 125], 50.00th=[ 125], 60.00th=[ 136], | 70.00th=[ 192], 80.00th=[ 192], 90.00th=[ 197], 95.00th=[ 197], | 99.00th=[ 197], 99.50th=[ 197], 99.90th=[ 197], 99.95th=[ 197], | 99.99th=[ 197] bw ( KiB/s): min= 2007, max= 6107, per=61.77%, avg=3387.33, stdev=2355.39, samples=3 iops : min= 1, max= 5, avg= 2.67, stdev= 2.08, samples=3 write: IOPS=1, BW=1718KiB/s (1759kB/s)(6144KiB/3576msec); 0 zone resets clat (msec): min=119, max=722, avg=433.96, stdev=228.79 lat (msec): min=119, max=722, avg=434.13, stdev=228.85 clat percentiles (msec): | 1.00th=[ 120], 5.00th=[ 120], 10.00th=[ 120], 20.00th=[ 218], | 30.00th=[ 218], 40.00th=[ 447], 50.00th=[ 447], 60.00th=[ 493], | 70.00th=[ 609], 80.00th=[ 609], 90.00th=[ 726], 95.00th=[ 726], | 99.00th=[ 726], 99.50th=[ 726], 99.90th=[ 726], 99.95th=[ 726], | 99.99th=[ 726] bw ( KiB/s): min= 1380, max= 2048, per=24.69%, avg=1895.40, stdev=288.67, samples=5 iops : min= 1, max= 2, avg= 1.20, stdev= 0.45, samples=5 lat (msec) : 100=8.33%, 250=58.33%, 500=16.67%, 750=16.67% cpu : usr=0.06%, sys=5.43%, 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=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=144763: Sat Aug 15 19:06:38 2026 read: IOPS=1, BW=1371KiB/s (1404kB/s)(5120KiB/3734msec) clat (msec): min=42, max=451, avg=159.33, stdev=165.62 lat (msec): min=42, max=451, avg=159.33, stdev=165.62 clat percentiles (msec): | 1.00th=[ 43], 5.00th=[ 43], 10.00th=[ 43], 20.00th=[ 43], | 30.00th=[ 80], 40.00th=[ 80], 50.00th=[ 106], 60.00th=[ 106], | 70.00th=[ 118], 80.00th=[ 118], 90.00th=[ 451], 95.00th=[ 451], | 99.00th=[ 451], 99.50th=[ 451], 99.90th=[ 451], 99.95th=[ 451], | 99.99th=[ 451] bw ( KiB/s): min= 2048, max= 6107, per=74.35%, avg=4077.50, stdev=2870.15, samples=2 iops : min= 2, max= 5, avg= 3.50, stdev= 2.12, samples=2 write: IOPS=1, BW=1920KiB/s (1966kB/s)(7168KiB/3734msec); 0 zone resets clat (msec): min=101, max=1054, avg=391.13, stdev=320.16 lat (msec): min=101, max=1054, avg=391.21, stdev=320.15 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 102], 10.00th=[ 102], 20.00th=[ 169], | 30.00th=[ 190], 40.00th=[ 190], 50.00th=[ 401], 60.00th=[ 405], | 70.00th=[ 405], 80.00th=[ 418], 90.00th=[ 1053], 95.00th=[ 1053], | 99.00th=[ 1053], 99.50th=[ 1053], 99.90th=[ 1053], 99.95th=[ 1053], | 99.99th=[ 1053] bw ( KiB/s): min= 1434, max= 2048, per=24.45%, avg=1877.00, stdev=295.83, samples=4 iops : min= 1, max= 2, avg= 1.25, stdev= 0.50, samples=4 lat (msec) : 50=8.33%, 100=8.33%, 250=41.67%, 500=33.33%, 2000=8.33% cpu : usr=0.00%, sys=5.12%, ctx=89, 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=5485KiB/s (5616kB/s), 570KiB/s-2038KiB/s (584kB/s-2087kB/s), io=20.0MiB (20.0MB), run=3517-3734msec WRITE: bw=7679KiB/s (7863kB/s), 1456KiB/s-2850KiB/s (1491kB/s-2918kB/s), io=28.0MiB (29.4MB), run=3517-3734msec 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=144774: Sat Aug 15 19:06:50 2026 read: IOPS=0, BW=3139KiB/s (3214kB/s)(12.0MiB/3915msec) clat (msec): min=622, max=2660, avg=1303.57, stdev=1174.75 lat (msec): min=622, max=2660, avg=1303.58, stdev=1174.74 clat percentiles (msec): | 1.00th=[ 625], 5.00th=[ 625], 10.00th=[ 625], 20.00th=[ 625], | 30.00th=[ 625], 40.00th=[ 625], 50.00th=[ 625], 60.00th=[ 625], | 70.00th=[ 2668], 80.00th=[ 2668], 90.00th=[ 2668], 95.00th=[ 2668], | 99.00th=[ 2668], 99.50th=[ 2668], 99.90th=[ 2668], 99.95th=[ 2668], | 99.99th=[ 2668] bw ( KiB/s): min= 5910, max= 8175, per=100.00%, avg=7042.50, stdev=1601.60, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=66.67%, >=2000=33.33% cpu : usr=0.00%, sys=9.89%, ctx=635, 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=144775: Sat Aug 15 19:06:50 2026 read: IOPS=0, BW=942KiB/s (965kB/s)(4096KiB/4347msec) clat (nsec): min=555483k, max=555483k, avg=555482581.00, stdev= 0.00 lat (nsec): min=555484k, max=555484k, avg=555484038.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 558], 5.00th=[ 558], 10.00th=[ 558], 20.00th=[ 558], | 30.00th=[ 558], 40.00th=[ 558], 50.00th=[ 558], 60.00th=[ 558], | 70.00th=[ 558], 80.00th=[ 558], 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= 6606, max= 6606, per=100.00%, avg=6606.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=1885KiB/s (1930kB/s)(8192KiB/4347msec); 0 zone resets clat (msec): min=616, max=3172, avg=1894.66, stdev=1807.37 lat (msec): min=617, max=3173, avg=1895.10, stdev=1807.35 clat percentiles (msec): | 1.00th=[ 617], 5.00th=[ 617], 10.00th=[ 617], 20.00th=[ 617], | 30.00th=[ 617], 40.00th=[ 617], 50.00th=[ 617], 60.00th=[ 3171], | 70.00th=[ 3171], 80.00th=[ 3171], 90.00th=[ 3171], 95.00th=[ 3171], | 99.00th=[ 3171], 99.50th=[ 3171], 99.90th=[ 3171], 99.95th=[ 3171], | 99.99th=[ 3171] bw ( KiB/s): min= 8192, max= 8192, per=100.00%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 750=66.67%, >=2000=33.33% cpu : usr=0.00%, sys=3.75%, ctx=191, 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=144776: Sat Aug 15 19:06:50 2026 write: IOPS=0, BW=2776KiB/s (2842kB/s)(12.0MiB/4427msec); 0 zone resets clat (msec): min=319, max=2979, avg=1473.80, stdev=1364.67 lat (msec): min=321, max=2982, avg=1475.30, stdev=1365.44 clat percentiles (msec): | 1.00th=[ 321], 5.00th=[ 321], 10.00th=[ 321], 20.00th=[ 321], | 30.00th=[ 321], 40.00th=[ 1116], 50.00th=[ 1116], 60.00th=[ 1116], | 70.00th=[ 2970], 80.00th=[ 2970], 90.00th=[ 2970], 95.00th=[ 2970], | 99.00th=[ 2970], 99.50th=[ 2970], 99.90th=[ 2970], 99.95th=[ 2970], | 99.99th=[ 2970] bw ( KiB/s): min= 7984, max= 8094, per=100.00%, avg=8039.00, stdev=77.78, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=2.91%, ctx=58, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144777: Sat Aug 15 19:06:50 2026 write: IOPS=0, BW=3526KiB/s (3611kB/s)(12.0MiB/3485msec); 0 zone resets clat (msec): min=354, max=2639, avg=1161.10, stdev=1282.52 lat (msec): min=354, max=2640, avg=1161.43, stdev=1282.53 clat percentiles (msec): | 1.00th=[ 355], 5.00th=[ 355], 10.00th=[ 355], 20.00th=[ 355], | 30.00th=[ 355], 40.00th=[ 489], 50.00th=[ 489], 60.00th=[ 489], | 70.00th=[ 2635], 80.00th=[ 2635], 90.00th=[ 2635], 95.00th=[ 2635], | 99.00th=[ 2635], 99.50th=[ 2635], 99.90th=[ 2635], 99.95th=[ 2635], | 99.99th=[ 2635] bw ( KiB/s): min= 6585, max= 8175, per=99.72%, avg=7380.00, stdev=1124.30, 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=0.00%, sys=4.76%, ctx=50, 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=3769KiB/s (3859kB/s), 942KiB/s-3139KiB/s (965kB/s-3214kB/s), io=16.0MiB (16.8MB), run=3915-4347msec WRITE: bw=7402KiB/s (7579kB/s), 1885KiB/s-3526KiB/s (1930kB/s-3611kB/s), io=32.0MiB (33.6MB), run=3485-4427msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144769: Sat Aug 15 19:06:50 2026 read: IOPS=2, BW=9548KiB/s (9777kB/s)(12.0MiB/1287msec) clat (msec): min=142, max=658, avg=414.01, stdev=258.79 lat (msec): min=142, max=658, avg=414.01, stdev=258.79 clat percentiles (msec): | 1.00th=[ 144], 5.00th=[ 144], 10.00th=[ 144], 20.00th=[ 144], | 30.00th=[ 144], 40.00th=[ 443], 50.00th=[ 443], 60.00th=[ 443], | 70.00th=[ 659], 80.00th=[ 659], 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= 7420, max= 8047, per=100.00%, avg=7733.50, stdev=443.36, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 250=33.33%, 500=33.33%, 750=33.33% cpu : usr=0.00%, sys=10.19%, ctx=53, 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=144770: Sat Aug 15 19:06:50 2026 read: IOPS=0, BW=869KiB/s (890kB/s)(4096KiB/4713msec) clat (nsec): min=568617k, max=568617k, avg=568616524.00, stdev= 0.00 lat (nsec): min=568617k, max=568617k, avg=568617276.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 567], 5.00th=[ 567], 10.00th=[ 567], 20.00th=[ 567], | 30.00th=[ 567], 40.00th=[ 567], 50.00th=[ 567], 60.00th=[ 567], | 70.00th=[ 567], 80.00th=[ 567], 90.00th=[ 567], 95.00th=[ 567], | 99.00th=[ 567], 99.50th=[ 567], 99.90th=[ 567], 99.95th=[ 567], | 99.99th=[ 567] bw ( KiB/s): min= 5461, max= 5461, per=100.00%, avg=5461.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=1738KiB/s (1780kB/s)(8192KiB/4713msec); 0 zone resets clat (msec): min=498, max=3643, avg=2071.25, stdev=2223.68 lat (msec): min=499, max=3643, avg=2071.64, stdev=2223.59 clat percentiles (msec): | 1.00th=[ 498], 5.00th=[ 498], 10.00th=[ 498], 20.00th=[ 498], | 30.00th=[ 498], 40.00th=[ 498], 50.00th=[ 498], 60.00th=[ 3641], | 70.00th=[ 3641], 80.00th=[ 3641], 90.00th=[ 3641], 95.00th=[ 3641], | 99.00th=[ 3641], 99.50th=[ 3641], 99.90th=[ 3641], 99.95th=[ 3641], | 99.99th=[ 3641] bw ( KiB/s): min= 8126, max= 8126, per=100.00%, avg=8126.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 750=33.33%, >=2000=33.33% cpu : usr=0.02%, sys=3.42%, ctx=51, 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=144771: Sat Aug 15 19:06:50 2026 write: IOPS=0, BW=2577KiB/s (2638kB/s)(12.0MiB/4769msec); 0 zone resets clat (msec): min=728, max=2968, avg=1588.59, stdev=1207.41 lat (msec): min=730, max=2969, avg=1589.38, stdev=1206.96 clat percentiles (msec): | 1.00th=[ 726], 5.00th=[ 726], 10.00th=[ 726], 20.00th=[ 726], | 30.00th=[ 726], 40.00th=[ 1070], 50.00th=[ 1070], 60.00th=[ 1070], | 70.00th=[ 2970], 80.00th=[ 2970], 90.00th=[ 2970], 95.00th=[ 2970], | 99.00th=[ 2970], 99.50th=[ 2970], 99.90th=[ 2970], 99.95th=[ 2970], | 99.99th=[ 2970] bw ( KiB/s): min= 8126, max= 8143, per=100.00%, avg=8134.50, stdev=12.02, 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=3.19%, ctx=42, 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=144772: Sat Aug 15 19:06:50 2026 write: IOPS=1, BW=7974KiB/s (8165kB/s)(12.0MiB/1541msec); 0 zone resets clat (msec): min=222, max=716, avg=512.69, stdev=258.32 lat (msec): min=222, max=717, avg=513.18, stdev=258.32 clat percentiles (msec): | 1.00th=[ 222], 5.00th=[ 222], 10.00th=[ 222], 20.00th=[ 222], | 30.00th=[ 222], 40.00th=[ 600], 50.00th=[ 600], 60.00th=[ 600], | 70.00th=[ 718], 80.00th=[ 718], 90.00th=[ 718], 95.00th=[ 718], | 99.00th=[ 718], 99.50th=[ 718], 99.90th=[ 718], 99.95th=[ 718], | 99.99th=[ 718] bw ( KiB/s): min= 5454, max= 8126, per=98.82%, avg=6790.00, stdev=1889.39, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 250=33.33%, 750=66.67% cpu : usr=0.00%, sys=6.62%, ctx=37, 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=3476KiB/s (3560kB/s), 869KiB/s-9548KiB/s (890kB/s-9777kB/s), io=16.0MiB (16.8MB), run=1287-4713msec WRITE: bw=6871KiB/s (7036kB/s), 1738KiB/s-7974KiB/s (1780kB/s-8165kB/s), io=32.0MiB (33.6MB), run=1541-4769msec