== sanity test 398b: DIO and buffer IO race ============== 21:11:08 (1767319868) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 6.4116 s, 7.9 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=150853: Thu Jan 1 21:13:32 2026 read: IOPS=12, BW=48.2KiB/s (49.4kB/s)(5992KiB/124249msec) clat (usec): min=80, max=927092, avg=40769.52, stdev=38477.16 lat (usec): min=81, max=927094, avg=40770.89, stdev=38477.13 clat percentiles (usec): | 1.00th=[ 128], 5.00th=[ 167], 10.00th=[ 281], 20.00th=[ 17957], | 30.00th=[ 23462], 40.00th=[ 28967], 50.00th=[ 34341], 60.00th=[ 41681], | 70.00th=[ 50594], 80.00th=[ 61604], 90.00th=[ 79168], 95.00th=[ 96994], | 99.00th=[139461], 99.50th=[164627], 99.90th=[358613], 99.95th=[926942], | 99.99th=[926942] bw ( KiB/s): min= 7, max= 127, per=24.89%, avg=48.03, stdev=21.23, samples=242 iops : min= 1, max= 31, avg=11.39, stdev= 5.34, samples=242 write: IOPS=12, BW=50.7KiB/s (51.9kB/s)(6296KiB/124249msec); 0 zone resets clat (usec): min=744, max=450653, avg=39861.42, stdev=40803.72 lat (usec): min=745, max=450655, avg=39863.87, stdev=40802.96 clat percentiles (usec): | 1.00th=[ 1037], 5.00th=[ 1139], 10.00th=[ 1303], 20.00th=[ 3752], | 30.00th=[ 8160], 40.00th=[ 20055], 50.00th=[ 30540], 60.00th=[ 41157], | 70.00th=[ 51643], 80.00th=[ 69731], 90.00th=[ 93848], 95.00th=[114820], | 99.00th=[170918], 99.50th=[198181], 99.90th=[287310], 99.95th=[450888], | 99.99th=[450888] bw ( KiB/s): min= 7, max= 118, per=25.11%, avg=50.72, stdev=22.32, samples=241 iops : min= 1, max= 29, avg=12.07, stdev= 5.61, samples=241 lat (usec) : 100=0.03%, 250=4.69%, 500=0.62%, 750=0.29%, 1000=0.29% lat (msec) : 2=7.19%, 4=3.52%, 10=7.13%, 20=8.20%, 50=37.01% lat (msec) : 100=24.74%, 250=6.15%, 500=0.10%, 1000=0.03% cpu : usr=0.09%, sys=5.03%, ctx=6304, 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=150854: Thu Jan 1 21:13:32 2026 read: IOPS=12, BW=48.5KiB/s (49.7kB/s)(5940KiB/122408msec) clat (usec): min=102, max=538868, avg=40143.13, stdev=33091.95 lat (usec): min=102, max=538868, avg=40144.53, stdev=33091.92 clat percentiles (usec): | 1.00th=[ 135], 5.00th=[ 163], 10.00th=[ 351], 20.00th=[ 17695], | 30.00th=[ 22938], 40.00th=[ 28181], 50.00th=[ 33424], 60.00th=[ 39584], | 70.00th=[ 49546], 80.00th=[ 61080], 90.00th=[ 81265], 95.00th=[ 95945], | 99.00th=[154141], 99.50th=[164627], 99.90th=[244319], 99.95th=[541066], | 99.99th=[541066] bw ( KiB/s): min= 5, max= 104, per=25.21%, avg=48.66, stdev=20.22, samples=238 iops : min= 1, max= 26, avg=11.55, stdev= 5.08, samples=238 write: IOPS=12, BW=51.9KiB/s (53.1kB/s)(6348KiB/122408msec); 0 zone resets clat (usec): min=686, max=911456, avg=39292.34, stdev=44040.10 lat (usec): min=688, max=911456, avg=39296.58, stdev=44039.29 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1172], 10.00th=[ 1467], 20.00th=[ 3720], | 30.00th=[ 8291], 40.00th=[ 17695], 50.00th=[ 30016], 60.00th=[ 40633], | 70.00th=[ 53216], 80.00th=[ 67634], 90.00th=[ 90702], 95.00th=[114820], | 99.00th=[158335], 99.50th=[168821], 99.90th=[283116], 99.95th=[910164], | 99.99th=[910164] bw ( KiB/s): min= 7, max= 135, per=25.67%, avg=51.86, stdev=22.71, samples=239 iops : min= 1, max= 33, avg=12.36, stdev= 5.70, samples=239 lat (usec) : 250=4.62%, 500=0.55%, 750=0.13%, 1000=0.26% lat (msec) : 2=6.38%, 4=4.62%, 10=6.90%, 20=9.73%, 50=35.77% lat (msec) : 100=24.93%, 250=5.99%, 500=0.03%, 750=0.03%, 1000=0.03% cpu : usr=0.08%, sys=4.74%, ctx=6123, 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=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=150855: Thu Jan 1 21:13:32 2026 read: IOPS=12, BW=48.6KiB/s (49.8kB/s)(6028KiB/123945msec) clat (usec): min=60, max=915528, avg=40121.08, stdev=38618.08 lat (usec): min=60, max=915530, avg=40122.78, stdev=38618.57 clat percentiles (usec): | 1.00th=[ 118], 5.00th=[ 159], 10.00th=[ 190], 20.00th=[ 17695], | 30.00th=[ 23462], 40.00th=[ 28967], 50.00th=[ 34341], 60.00th=[ 39584], | 70.00th=[ 47449], 80.00th=[ 58983], 90.00th=[ 78119], 95.00th=[ 98042], | 99.00th=[139461], 99.50th=[181404], 99.90th=[337642], 99.95th=[918553], | 99.99th=[918553] bw ( KiB/s): min= 5, max= 106, per=25.17%, avg=48.57, stdev=21.73, samples=242 iops : min= 1, max= 26, avg=11.53, stdev= 5.45, samples=242 write: IOPS=12, BW=50.5KiB/s (51.7kB/s)(6260KiB/123945msec); 0 zone resets clat (usec): min=745, max=503175, avg=40244.39, stdev=43124.25 lat (usec): min=746, max=503176, avg=40259.28, stdev=43125.68 clat percentiles (usec): | 1.00th=[ 1037], 5.00th=[ 1156], 10.00th=[ 1270], 20.00th=[ 3392], | 30.00th=[ 7373], 40.00th=[ 17433], 50.00th=[ 29230], 60.00th=[ 40109], | 70.00th=[ 53740], 80.00th=[ 70779], 90.00th=[ 94897], 95.00th=[119014], | 99.00th=[177210], 99.50th=[223347], 99.90th=[316670], 99.95th=[501220], | 99.99th=[501220] bw ( KiB/s): min= 7, max= 127, per=24.85%, avg=50.20, stdev=22.03, samples=243 iops : min= 1, max= 31, avg=11.94, stdev= 5.52, samples=243 lat (usec) : 100=0.07%, 250=5.24%, 500=0.52%, 750=0.39%, 1000=0.33% lat (msec) : 2=7.91%, 4=3.81%, 10=6.12%, 20=8.79%, 50=36.13% lat (msec) : 100=23.83%, 250=6.67%, 500=0.13%, 750=0.03%, 1000=0.03% cpu : usr=0.08%, sys=4.94%, ctx=6250, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=150856: Thu Jan 1 21:13:32 2026 read: IOPS=12, BW=48.8KiB/s (49.0kB/s)(6052KiB/123994msec) clat (usec): min=98, max=941729, avg=39794.72, stdev=38486.50 lat (usec): min=99, max=941730, avg=39796.00, stdev=38486.49 clat percentiles (usec): | 1.00th=[ 117], 5.00th=[ 157], 10.00th=[ 208], 20.00th=[ 15664], | 30.00th=[ 21627], 40.00th=[ 27395], 50.00th=[ 33817], 60.00th=[ 40633], | 70.00th=[ 50070], 80.00th=[ 61604], 90.00th=[ 78119], 95.00th=[ 94897], | 99.00th=[133694], 99.50th=[156238], 99.90th=[299893], 99.95th=[943719], | 99.99th=[943719] bw ( KiB/s): min= 5, max= 133, per=25.21%, avg=48.65, stdev=21.80, samples=242 iops : min= 1, max= 33, avg=11.55, stdev= 5.50, samples=242 write: IOPS=12, BW=50.3KiB/s (51.5kB/s)(6236KiB/123994msec); 0 zone resets clat (usec): min=760, max=289075, avg=40623.25, stdev=42102.01 lat (usec): min=761, max=289075, avg=40624.84, stdev=42102.03 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1188], 10.00th=[ 1516], 20.00th=[ 3720], | 30.00th=[ 7898], 40.00th=[ 18220], 50.00th=[ 30016], 60.00th=[ 40109], | 70.00th=[ 52167], 80.00th=[ 69731], 90.00th=[ 98042], 95.00th=[126354], | 99.00th=[179307], 99.50th=[198181], 99.90th=[274727], 99.95th=[287310], | 99.99th=[287310] bw ( KiB/s): min= 7, max= 118, per=24.67%, avg=49.84, stdev=19.98, samples=243 iops : min= 1, max= 29, avg=11.85, stdev= 5.03, samples=243 lat (usec) : 100=0.03%, 250=5.31%, 500=0.88%, 750=0.07%, 1000=0.39% lat (msec) : 2=7.26%, 4=4.04%, 10=6.32%, 20=9.80%, 50=34.90% lat (msec) : 100=24.35%, 250=6.54%, 500=0.10%, 1000=0.03% cpu : usr=0.08%, sys=4.89%, ctx=6245, 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=193KiB/s (198kB/s), 48.2KiB/s-48.8KiB/s (49.4kB/s-49.0kB/s), io=23.4MiB (24.6MB), run=122408-124249msec WRITE: bw=202KiB/s (207kB/s), 50.3KiB/s-51.9KiB/s (51.5kB/s-53.1kB/s), io=24.6MiB (25.7MB), run=122408-124249msec rand-rw: (groupid=0, jobs=1): err= 0: pid=150857: Thu Jan 1 21:15:52 2026 read: IOPS=5, BW=22.9KiB/s (23.4kB/s)(5992KiB/262172msec) clat (msec): min=5, max=969, avg=38.36, stdev=40.01 lat (msec): min=5, max=969, avg=38.36, stdev=40.01 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 23], 50.00th=[ 28], 60.00th=[ 34], | 70.00th=[ 44], 80.00th=[ 57], 90.00th=[ 80], 95.00th=[ 101], | 99.00th=[ 150], 99.50th=[ 184], 99.90th=[ 363], 99.95th=[ 969], | 99.99th=[ 969] bw ( KiB/s): min= 7, max= 95, per=28.00%, avg=25.48, stdev=16.96, samples=455 iops : min= 1, max= 23, avg= 5.75, stdev= 4.27, samples=455 write: IOPS=6, BW=24.0KiB/s (24.6kB/s)(6296KiB/262172msec); 0 zone resets clat (msec): min=36, max=597, avg=129.83, stdev=64.41 lat (msec): min=36, max=597, avg=129.83, stdev=64.41 clat percentiles (msec): | 1.00th=[ 49], 5.00th=[ 61], 10.00th=[ 68], 20.00th=[ 81], | 30.00th=[ 91], 40.00th=[ 101], 50.00th=[ 113], 60.00th=[ 128], | 70.00th=[ 146], 80.00th=[ 169], 90.00th=[ 218], 95.00th=[ 259], | 99.00th=[ 326], 99.50th=[ 388], 99.90th=[ 567], 99.95th=[ 600], | 99.99th=[ 600] bw ( KiB/s): min= 7, max= 56, per=24.88%, avg=23.63, stdev=10.59, samples=513 iops : min= 1, max= 14, avg= 5.27, stdev= 2.71, samples=513 lat (msec) : 10=3.48%, 20=13.54%, 50=20.44%, 100=29.23%, 250=30.08% lat (msec) : 500=3.09%, 750=0.10%, 1000=0.03% cpu : usr=0.04%, sys=1.26%, ctx=5616, 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=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=150858: Thu Jan 1 21:15:52 2026 read: IOPS=5, BW=22.5KiB/s (23.1kB/s)(5940KiB/263757msec) clat (msec): min=5, max=929, avg=38.44, stdev=42.60 lat (msec): min=5, max=929, avg=38.44, stdev=42.60 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 18], 40.00th=[ 23], 50.00th=[ 28], 60.00th=[ 34], | 70.00th=[ 42], 80.00th=[ 56], 90.00th=[ 80], 95.00th=[ 102], | 99.00th=[ 184], 99.50th=[ 230], 99.90th=[ 426], 99.95th=[ 927], | 99.99th=[ 927] bw ( KiB/s): min= 7, max= 96, per=27.55%, avg=25.07, stdev=16.90, samples=457 iops : min= 1, max= 24, avg= 5.65, stdev= 4.25, samples=457 write: IOPS=6, BW=24.1KiB/s (24.6kB/s)(6348KiB/263757msec); 0 zone resets clat (msec): min=34, max=568, avg=129.93, stdev=63.21 lat (msec): min=34, max=568, avg=129.94, stdev=63.21 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 61], 10.00th=[ 69], 20.00th=[ 83], | 30.00th=[ 92], 40.00th=[ 103], 50.00th=[ 113], 60.00th=[ 129], | 70.00th=[ 146], 80.00th=[ 165], 90.00th=[ 215], 95.00th=[ 253], | 99.00th=[ 338], 99.50th=[ 380], 99.90th=[ 567], 99.95th=[ 567], | 99.99th=[ 567] bw ( KiB/s): min= 7, max= 55, per=24.96%, avg=23.71, stdev=10.55, samples=515 iops : min= 1, max= 13, avg= 5.30, stdev= 2.70, samples=515 lat (msec) : 10=3.84%, 20=13.15%, 50=21.29%, 100=27.44%, 250=31.28% lat (msec) : 500=2.83%, 750=0.13%, 1000=0.03% cpu : usr=0.04%, sys=1.21%, ctx=5479, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=150859: Thu Jan 1 21:15:52 2026 read: IOPS=5, BW=22.9KiB/s (23.4kB/s)(6028KiB/263635msec) clat (msec): min=5, max=311, avg=38.78, stdev=35.04 lat (msec): min=5, max=311, avg=38.78, stdev=35.04 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 18], 40.00th=[ 22], 50.00th=[ 28], 60.00th=[ 35], | 70.00th=[ 45], 80.00th=[ 58], 90.00th=[ 83], 95.00th=[ 104], | 99.00th=[ 171], 99.50th=[ 222], 99.90th=[ 292], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 7, max= 79, per=27.01%, avg=24.58, stdev=16.43, samples=473 iops : min= 1, max= 19, avg= 5.52, stdev= 4.16, samples=473 write: IOPS=5, BW=23.7KiB/s (24.3kB/s)(6260KiB/263635msec); 0 zone resets clat (msec): min=36, max=1137, avg=130.86, stdev=68.15 lat (msec): min=36, max=1137, avg=130.87, stdev=68.15 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 59], 10.00th=[ 69], 20.00th=[ 81], | 30.00th=[ 92], 40.00th=[ 104], 50.00th=[ 115], 60.00th=[ 127], | 70.00th=[ 146], 80.00th=[ 171], 90.00th=[ 215], 95.00th=[ 264], | 99.00th=[ 338], 99.50th=[ 380], 99.90th=[ 531], 99.95th=[ 1133], | 99.99th=[ 1133] bw ( KiB/s): min= 7, max= 56, per=24.63%, avg=23.40, stdev=10.87, samples=515 iops : min= 1, max= 14, avg= 5.22, stdev= 2.77, samples=515 lat (msec) : 10=3.91%, 20=14.65%, 50=18.72%, 100=28.39%, 250=31.02% lat (msec) : 500=3.26%, 750=0.03%, 2000=0.03% cpu : usr=0.04%, sys=1.23%, ctx=5427, 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=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=150860: Thu Jan 1 21:15:52 2026 read: IOPS=5, BW=23.2KiB/s (23.7kB/s)(6052KiB/261189msec) clat (msec): min=5, max=285, avg=37.36, stdev=32.35 lat (msec): min=5, max=285, avg=37.37, stdev=32.35 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 18], 40.00th=[ 23], 50.00th=[ 28], 60.00th=[ 34], | 70.00th=[ 43], 80.00th=[ 54], 90.00th=[ 78], 95.00th=[ 104], | 99.00th=[ 155], 99.50th=[ 188], 99.90th=[ 284], 99.95th=[ 284], | 99.99th=[ 284] bw ( KiB/s): min= 7, max= 119, per=28.50%, avg=25.94, stdev=17.18, samples=451 iops : min= 1, max= 29, avg= 5.86, stdev= 4.35, samples=451 write: IOPS=5, BW=23.9KiB/s (24.4kB/s)(6236KiB/261189msec); 0 zone resets clat (msec): min=35, max=1153, avg=131.06, stdev=67.74 lat (msec): min=35, max=1153, avg=131.07, stdev=67.74 clat percentiles (msec): | 1.00th=[ 46], 5.00th=[ 62], 10.00th=[ 68], 20.00th=[ 82], | 30.00th=[ 92], 40.00th=[ 103], 50.00th=[ 116], 60.00th=[ 131], | 70.00th=[ 146], 80.00th=[ 174], 90.00th=[ 215], 95.00th=[ 249], | 99.00th=[ 347], 99.50th=[ 401], 99.90th=[ 600], 99.95th=[ 1150], | 99.99th=[ 1150] bw ( KiB/s): min= 7, max= 55, per=24.78%, avg=23.54, stdev=10.23, samples=510 iops : min= 1, max= 13, avg= 5.25, stdev= 2.62, samples=510 lat (msec) : 10=4.04%, 20=13.93%, 50=20.80%, 100=26.60%, 250=32.06% lat (msec) : 500=2.51%, 750=0.03%, 2000=0.03% cpu : usr=0.04%, sys=1.25%, ctx=5431, 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=91.0KiB/s (93.2kB/s), 22.5KiB/s-23.2KiB/s (23.1kB/s-23.7kB/s), io=23.4MiB (24.6MB), run=261189-263757msec WRITE: bw=95.3KiB/s (97.6kB/s), 23.7KiB/s-24.1KiB/s (24.3kB/s-24.6kB/s), io=24.6MiB (25.7MB), run=261189-263757msec 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=150914: Thu Jan 1 21:16:26 2026 read: IOPS=15, BW=242KiB/s (248kB/s)(5920KiB/24460msec) clat (usec): min=105, max=177492, avg=30643.52, stdev=25970.73 lat (usec): min=105, max=177493, avg=30645.08, stdev=25970.41 clat percentiles (usec): | 1.00th=[ 113], 5.00th=[ 145], 10.00th=[ 159], 20.00th=[ 302], | 30.00th=[ 17695], 40.00th=[ 23462], 50.00th=[ 28705], 60.00th=[ 33817], | 70.00th=[ 39060], 80.00th=[ 49021], 90.00th=[ 61604], 95.00th=[ 72877], | 99.00th=[101188], 99.50th=[162530], 99.90th=[177210], 99.95th=[177210], | 99.99th=[177210] bw ( KiB/s): min= 63, max= 443, per=24.09%, avg=235.81, stdev=86.59, samples=47 iops : min= 3, max= 27, avg=13.96, stdev= 5.42, samples=47 write: IOPS=16, BW=260KiB/s (267kB/s)(6368KiB/24460msec); 0 zone resets clat (usec): min=1393, max=429118, avg=32260.82, stdev=37632.44 lat (usec): min=1394, max=429121, avg=32262.76, stdev=37632.49 clat percentiles (usec): | 1.00th=[ 1450], 5.00th=[ 1713], 10.00th=[ 2180], 20.00th=[ 4555], | 30.00th=[ 7308], 40.00th=[ 12518], 50.00th=[ 21627], 60.00th=[ 32375], | 70.00th=[ 41681], 80.00th=[ 52691], 90.00th=[ 76022], 95.00th=[ 94897], | 99.00th=[147850], 99.50th=[200279], 99.90th=[429917], 99.95th=[429917], | 99.99th=[429917] bw ( KiB/s): min= 21, max= 474, per=25.19%, avg=259.49, stdev=117.43, samples=47 iops : min= 1, max= 29, avg=15.47, stdev= 7.39, samples=47 lat (usec) : 250=9.38%, 500=0.91%, 750=0.13%, 1000=0.26% lat (msec) : 2=5.34%, 4=4.95%, 10=9.64%, 20=11.07%, 50=37.24% lat (msec) : 100=18.36%, 250=2.60%, 500=0.13% cpu : usr=0.07%, sys=6.18%, ctx=1399, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=150917: Thu Jan 1 21:16:26 2026 read: IOPS=15, BW=242KiB/s (248kB/s)(5744KiB/23697msec) clat (usec): min=104, max=170332, avg=32842.22, stdev=26607.42 lat (usec): min=104, max=170333, avg=32843.27, stdev=26607.45 clat percentiles (usec): | 1.00th=[ 110], 5.00th=[ 151], 10.00th=[ 174], 20.00th=[ 2540], | 30.00th=[ 19530], 40.00th=[ 24773], 50.00th=[ 28967], 60.00th=[ 34866], | 70.00th=[ 41681], 80.00th=[ 52167], 90.00th=[ 69731], 95.00th=[ 86508], | 99.00th=[108528], 99.50th=[111674], 99.90th=[170918], 99.95th=[170918], | 99.99th=[170918] bw ( KiB/s): min= 31, max= 447, per=24.51%, avg=240.00, stdev=97.50, samples=46 iops : min= 1, max= 27, avg=14.17, stdev= 6.15, samples=46 write: IOPS=17, BW=276KiB/s (283kB/s)(6544KiB/23697msec); 0 zone resets clat (usec): min=1311, max=159380, avg=28305.16, stdev=31211.42 lat (usec): min=1312, max=159381, avg=28308.63, stdev=31210.53 clat percentiles (usec): | 1.00th=[ 1434], 5.00th=[ 1631], 10.00th=[ 1827], 20.00th=[ 3654], | 30.00th=[ 6456], 40.00th=[ 9896], 50.00th=[ 15795], 60.00th=[ 23200], | 70.00th=[ 35914], 80.00th=[ 49021], 90.00th=[ 70779], 95.00th=[ 93848], | 99.00th=[137364], 99.50th=[147850], 99.90th=[158335], 99.95th=[158335], | 99.99th=[158335] bw ( KiB/s): min= 31, max= 510, per=26.14%, avg=269.20, stdev=97.32, samples=46 iops : min= 1, max= 31, avg=16.00, stdev= 6.11, samples=46 lat (usec) : 250=6.90%, 500=1.04%, 750=0.52%, 1000=0.52% lat (msec) : 2=6.25%, 4=5.47%, 10=10.55%, 20=12.89%, 50=35.03% lat (msec) : 100=17.32%, 250=3.52% cpu : usr=0.10%, sys=6.20%, ctx=1428, 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=150920: Thu Jan 1 21:16:26 2026 read: IOPS=17, BW=272KiB/s (279kB/s)(6256KiB/22997msec) clat (usec): min=100, max=185205, avg=30930.07, stdev=26168.99 lat (usec): min=101, max=185207, avg=30944.88, stdev=26157.06 clat percentiles (usec): | 1.00th=[ 108], 5.00th=[ 141], 10.00th=[ 167], 20.00th=[ 420], | 30.00th=[ 17171], 40.00th=[ 22676], 50.00th=[ 27919], 60.00th=[ 34866], | 70.00th=[ 41157], 80.00th=[ 51119], 90.00th=[ 63177], 95.00th=[ 73925], | 99.00th=[119014], 99.50th=[141558], 99.90th=[185598], 99.95th=[185598], | 99.99th=[185598] bw ( KiB/s): min= 125, max= 478, per=28.03%, avg=274.44, stdev=85.13, samples=45 iops : min= 7, max= 29, avg=16.33, stdev= 5.34, samples=45 write: IOPS=16, BW=262KiB/s (269kB/s)(6032KiB/22997msec); 0 zone resets clat (usec): min=1303, max=221530, avg=28706.01, stdev=30820.91 lat (usec): min=1304, max=221532, avg=28708.25, stdev=30820.79 clat percentiles (usec): | 1.00th=[ 1418], 5.00th=[ 1647], 10.00th=[ 1893], 20.00th=[ 3621], | 30.00th=[ 6259], 40.00th=[ 10945], 50.00th=[ 20055], 60.00th=[ 27657], | 70.00th=[ 36963], 80.00th=[ 50594], 90.00th=[ 69731], 95.00th=[ 84411], | 99.00th=[127402], 99.50th=[219153], 99.90th=[221250], 99.95th=[221250], | 99.99th=[221250] bw ( KiB/s): min= 63, max= 441, per=25.24%, avg=260.00, stdev=97.54, samples=45 iops : min= 3, max= 27, avg=15.44, stdev= 6.18, samples=45 lat (usec) : 250=9.11%, 500=1.30%, 750=0.26%, 1000=0.26% lat (msec) : 2=5.86%, 4=5.60%, 10=8.59%, 20=11.33%, 50=36.85% lat (msec) : 100=19.01%, 250=1.82% cpu : usr=0.13%, sys=6.61%, ctx=1494, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=150921: Thu Jan 1 21:16:26 2026 read: IOPS=16, BW=264KiB/s (270kB/s)(6032KiB/22837msec) clat (usec): min=89, max=272132, avg=30648.10, stdev=29645.31 lat (usec): min=90, max=272134, avg=30650.51, stdev=29646.01 clat percentiles (usec): | 1.00th=[ 115], 5.00th=[ 141], 10.00th=[ 153], 20.00th=[ 227], | 30.00th=[ 15664], 40.00th=[ 22938], 50.00th=[ 26870], 60.00th=[ 31589], | 70.00th=[ 39060], 80.00th=[ 50594], 90.00th=[ 63701], 95.00th=[ 79168], | 99.00th=[110625], 99.50th=[206570], 99.90th=[270533], 99.95th=[270533], | 99.99th=[270533] bw ( KiB/s): min= 95, max= 502, per=27.09%, avg=265.25, stdev=97.41, samples=44 iops : min= 5, max= 31, avg=15.82, stdev= 6.19, samples=44 write: IOPS=17, BW=274KiB/s (281kB/s)(6256KiB/22837msec); 0 zone resets clat (usec): min=1214, max=237005, avg=28183.42, stdev=30699.06 lat (usec): min=1216, max=237009, avg=28185.46, stdev=30699.03 clat percentiles (usec): | 1.00th=[ 1450], 5.00th=[ 1614], 10.00th=[ 1893], 20.00th=[ 3720], | 30.00th=[ 6718], 40.00th=[ 10290], 50.00th=[ 16909], 60.00th=[ 25822], | 70.00th=[ 37487], 80.00th=[ 49021], 90.00th=[ 67634], 95.00th=[ 85459], | 99.00th=[131597], 99.50th=[173016], 99.90th=[238027], 99.95th=[238027], | 99.99th=[238027] bw ( KiB/s): min= 95, max= 566, per=26.82%, avg=276.27, stdev=103.92, samples=44 iops : min= 5, max= 35, avg=16.50, stdev= 6.59, samples=44 lat (usec) : 100=0.13%, 250=9.90%, 500=1.43%, 750=0.78%, 1000=0.26% lat (msec) : 2=6.25%, 4=4.82%, 10=10.16%, 20=11.07%, 50=35.16% lat (msec) : 100=17.45%, 250=2.47%, 500=0.13% cpu : usr=0.11%, sys=6.17%, ctx=1375, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=979KiB/s (1003kB/s), 242KiB/s-272KiB/s (248kB/s-279kB/s), io=23.4MiB (24.5MB), run=22837-24460msec WRITE: bw=1030KiB/s (1055kB/s), 260KiB/s-276KiB/s (267kB/s-283kB/s), io=24.6MiB (25.8MB), run=22837-24460msec rand-rw: (groupid=0, jobs=1): err= 0: pid=150915: Thu Jan 1 21:17:05 2026 read: IOPS=5, BW=94.9KiB/s (97.2kB/s)(5920KiB/62359msec) clat (msec): min=5, max=222, avg=32.83, stdev=30.97 lat (msec): min=5, max=222, avg=32.83, stdev=30.97 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 19], 50.00th=[ 22], 60.00th=[ 27], | 70.00th=[ 33], 80.00th=[ 46], 90.00th=[ 69], 95.00th=[ 97], | 99.00th=[ 146], 99.50th=[ 207], 99.90th=[ 222], 99.95th=[ 222], | 99.99th=[ 222] bw ( KiB/s): min= 31, max= 316, per=26.56%, avg=99.32, stdev=60.51, samples=117 iops : min= 1, max= 19, avg= 5.41, stdev= 3.82, samples=117 write: IOPS=6, BW=102KiB/s (105kB/s)(6368KiB/62359msec); 0 zone resets clat (msec): min=44, max=294, avg=125.84, stdev=46.62 lat (msec): min=44, max=294, avg=125.85, stdev=46.62 clat percentiles (msec): | 1.00th=[ 55], 5.00th=[ 66], 10.00th=[ 75], 20.00th=[ 87], | 30.00th=[ 97], 40.00th=[ 108], 50.00th=[ 117], 60.00th=[ 129], | 70.00th=[ 144], 80.00th=[ 159], 90.00th=[ 182], 95.00th=[ 234], | 99.00th=[ 268], 99.50th=[ 292], 99.90th=[ 296], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 30, max= 192, per=25.95%, avg=102.26, stdev=37.00, samples=122 iops : min= 1, max= 12, avg= 5.59, stdev= 2.40, samples=122 lat (msec) : 10=3.91%, 20=17.97%, 50=18.36%, 100=22.53%, 250=35.94% lat (msec) : 500=1.30% cpu : usr=0.04%, sys=1.26%, ctx=1319, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=150916: Thu Jan 1 21:17:05 2026 read: IOPS=5, BW=89.8KiB/s (91.0kB/s)(5744KiB/63937msec) clat (msec): min=6, max=164, avg=33.89, stdev=28.99 lat (msec): min=6, max=164, avg=33.89, stdev=28.99 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 15], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 23], 60.00th=[ 29], | 70.00th=[ 38], 80.00th=[ 51], 90.00th=[ 71], 95.00th=[ 100], | 99.00th=[ 148], 99.50th=[ 163], 99.90th=[ 165], 99.95th=[ 165], | 99.99th=[ 165] bw ( KiB/s): min= 30, max= 255, per=26.55%, avg=99.29, stdev=59.62, samples=113 iops : min= 1, max= 15, avg= 5.41, stdev= 3.75, samples=113 write: IOPS=6, BW=102KiB/s (105kB/s)(6544KiB/63937msec); 0 zone resets clat (msec): min=34, max=392, avg=125.81, stdev=49.37 lat (msec): min=34, max=392, avg=125.81, stdev=49.37 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 63], 10.00th=[ 70], 20.00th=[ 84], | 30.00th=[ 99], 40.00th=[ 108], 50.00th=[ 118], 60.00th=[ 130], | 70.00th=[ 144], 80.00th=[ 163], 90.00th=[ 186], 95.00th=[ 224], | 99.00th=[ 271], 99.50th=[ 288], 99.90th=[ 393], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 31, max= 224, per=25.69%, avg=101.24, stdev=39.40, samples=126 iops : min= 1, max= 14, avg= 5.53, stdev= 2.59, samples=126 lat (msec) : 10=4.04%, 20=16.15%, 50=17.97%, 100=24.35%, 250=36.07% lat (msec) : 500=1.43% cpu : usr=0.05%, sys=1.42%, ctx=1354, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=150918: Thu Jan 1 21:17:05 2026 read: IOPS=6, BW=101KiB/s (104kB/s)(6256KiB/61832msec) clat (msec): min=6, max=239, avg=31.09, stdev=28.16 lat (msec): min=6, max=239, avg=31.09, stdev=28.16 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 19], 50.00th=[ 23], 60.00th=[ 27], | 70.00th=[ 31], 80.00th=[ 43], 90.00th=[ 63], 95.00th=[ 80], | 99.00th=[ 176], 99.50th=[ 188], 99.90th=[ 241], 99.95th=[ 241], | 99.99th=[ 241] bw ( KiB/s): min= 30, max= 382, per=28.98%, avg=108.39, stdev=72.27, samples=114 iops : min= 1, max= 23, avg= 5.97, stdev= 4.62, samples=114 write: IOPS=6, BW=97.6KiB/s (99.9kB/s)(6032KiB/61832msec); 0 zone resets clat (msec): min=34, max=331, avg=131.13, stdev=49.99 lat (msec): min=34, max=331, avg=131.14, stdev=49.99 clat percentiles (msec): | 1.00th=[ 56], 5.00th=[ 68], 10.00th=[ 77], 20.00th=[ 91], | 30.00th=[ 103], 40.00th=[ 110], 50.00th=[ 121], 60.00th=[ 136], | 70.00th=[ 148], 80.00th=[ 167], 90.00th=[ 194], 95.00th=[ 236], | 99.00th=[ 305], 99.50th=[ 317], 99.90th=[ 334], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 31, max= 190, per=24.62%, avg=96.98, stdev=34.05, samples=122 iops : min= 1, max= 11, avg= 5.25, stdev= 2.20, samples=122 lat (msec) : 10=3.78%, 20=18.88%, 50=20.44%, 100=19.92%, 250=35.68% lat (msec) : 500=1.30% cpu : usr=0.05%, sys=1.42%, ctx=1357, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=150919: Thu Jan 1 21:17:05 2026 read: IOPS=5, BW=95.9KiB/s (98.2kB/s)(6032KiB/62907msec) clat (msec): min=7, max=177, avg=31.17, stdev=25.76 lat (msec): min=7, max=177, avg=31.18, stdev=25.76 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 14], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 24], 60.00th=[ 27], | 70.00th=[ 32], 80.00th=[ 41], 90.00th=[ 62], 95.00th=[ 86], | 99.00th=[ 153], 99.50th=[ 163], 99.90th=[ 178], 99.95th=[ 178], | 99.99th=[ 178] bw ( KiB/s): min= 31, max= 347, per=27.70%, avg=103.60, stdev=67.18, samples=113 iops : min= 1, max= 21, avg= 5.68, stdev= 4.24, samples=113 write: IOPS=6, BW=99.4KiB/s (102kB/s)(6256KiB/62907msec); 0 zone resets clat (msec): min=39, max=459, avg=130.19, stdev=54.75 lat (msec): min=39, max=459, avg=130.19, stdev=54.75 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 63], 10.00th=[ 71], 20.00th=[ 85], | 30.00th=[ 97], 40.00th=[ 110], 50.00th=[ 120], 60.00th=[ 132], | 70.00th=[ 148], 80.00th=[ 174], 90.00th=[ 205], 95.00th=[ 230], | 99.00th=[ 305], 99.50th=[ 326], 99.90th=[ 460], 99.95th=[ 460], | 99.99th=[ 460] bw ( KiB/s): min= 30, max= 191, per=25.01%, avg=98.55, stdev=38.51, samples=124 iops : min= 1, max= 11, avg= 5.35, stdev= 2.48, samples=124 lat (msec) : 10=2.60%, 20=16.41%, 50=23.83%, 100=21.74%, 250=34.11% lat (msec) : 500=1.30% cpu : usr=0.04%, sys=1.28%, ctx=1319, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=375KiB/s (384kB/s), 89.8KiB/s-101KiB/s (91.0kB/s-104kB/s), io=23.4MiB (24.5MB), run=61832-63937msec WRITE: bw=394KiB/s (404kB/s), 97.6KiB/s-102KiB/s (99.9kB/s-105kB/s), io=24.6MiB (25.8MB), run=61832-63937msec 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=150937: Thu Jan 1 21:17:23 2026 read: IOPS=1, BW=1428KiB/s (1462kB/s)(7168KiB/5020msec) clat (usec): min=663, max=2319.4k, avg=500536.73, stdev=824850.46 lat (usec): min=664, max=2319.5k, avg=500538.02, stdev=824850.32 clat percentiles (usec): | 1.00th=[ 668], 5.00th=[ 668], 10.00th=[ 668], | 20.00th=[ 873], 30.00th=[ 141558], 40.00th=[ 141558], | 50.00th=[ 212861], 60.00th=[ 261096], 70.00th=[ 261096], | 80.00th=[ 566232], 90.00th=[2332034], 95.00th=[2332034], | 99.00th=[2332034], 99.50th=[2332034], 99.90th=[2332034], | 99.95th=[2332034], 99.99th=[2332034] bw ( KiB/s): min= 1458, max= 4039, per=70.36%, avg=2307.00, stdev=997.66, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 write: IOPS=0, BW=1020KiB/s (1044kB/s)(5120KiB/5020msec); 0 zone resets clat (msec): min=151, max=471, avg=274.28, stdev=151.11 lat (msec): min=151, max=471, avg=274.37, stdev=151.11 clat percentiles (msec): | 1.00th=[ 153], 5.00th=[ 153], 10.00th=[ 153], 20.00th=[ 153], | 30.00th=[ 167], 40.00th=[ 167], 50.00th=[ 178], 60.00th=[ 178], | 70.00th=[ 405], 80.00th=[ 405], 90.00th=[ 472], 95.00th=[ 472], | 99.00th=[ 472], 99.50th=[ 472], 99.90th=[ 472], 99.95th=[ 472], | 99.99th=[ 472] bw ( KiB/s): min= 3984, max= 4039, per=87.38%, avg=4011.50, stdev=38.89, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 lat (usec) : 750=8.33%, 1000=8.33% lat (msec) : 250=41.67%, 500=25.00%, 750=8.33%, >=2000=8.33% cpu : usr=0.00%, sys=7.23%, ctx=475, 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=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=150938: Thu Jan 1 21:17:23 2026 read: IOPS=0, BW=328KiB/s (336kB/s)(2048KiB/6245msec) clat (usec): min=1149, max=230142, avg=115645.83, stdev=161922.86 lat (usec): min=1151, max=230144, avg=115648.09, stdev=161922.69 clat percentiles (usec): | 1.00th=[ 1156], 5.00th=[ 1156], 10.00th=[ 1156], 20.00th=[ 1156], | 30.00th=[ 1156], 40.00th=[ 1156], 50.00th=[ 1156], 60.00th=[229639], | 70.00th=[229639], 80.00th=[229639], 90.00th=[229639], 95.00th=[229639], | 99.00th=[229639], 99.50th=[229639], 99.90th=[229639], 99.95th=[229639], | 99.99th=[229639] bw ( KiB/s): min= 1402, max= 1992, per=51.75%, avg=1697.00, stdev=417.19, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1640KiB/s (1679kB/s)(10.0MiB/6245msec); 0 zone resets clat (msec): min=63, max=2635, avg=595.28, stdev=754.65 lat (msec): min=64, max=2635, avg=595.37, stdev=754.63 clat percentiles (msec): | 1.00th=[ 64], 5.00th=[ 64], 10.00th=[ 64], 20.00th=[ 205], | 30.00th=[ 228], 40.00th=[ 245], 50.00th=[ 268], 60.00th=[ 271], | 70.00th=[ 592], 80.00th=[ 625], 90.00th=[ 827], 95.00th=[ 2635], | 99.00th=[ 2635], 99.50th=[ 2635], 99.90th=[ 2635], 99.95th=[ 2635], | 99.99th=[ 2635] bw ( KiB/s): min= 1992, max= 6095, per=70.50%, avg=3236.80, stdev=1828.75, samples=5 iops : min= 1, max= 5, avg= 2.20, stdev= 1.79, samples=5 lat (msec) : 2=8.33%, 100=8.33%, 250=33.33%, 500=16.67%, 750=16.67% lat (msec) : 1000=8.33%, >=2000=8.33% cpu : usr=0.02%, sys=7.03%, ctx=105, 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=150939: Thu Jan 1 21:17:23 2026 read: IOPS=1, BW=1125KiB/s (1152kB/s)(6144KiB/5459msec) clat (usec): min=554, max=317552, avg=109758.87, stdev=138306.57 lat (usec): min=555, max=317553, avg=109759.92, stdev=138306.42 clat percentiles (usec): | 1.00th=[ 553], 5.00th=[ 553], 10.00th=[ 553], 20.00th=[ 570], | 30.00th=[ 570], 40.00th=[ 594], 50.00th=[ 594], 60.00th=[100140], | 70.00th=[238027], 80.00th=[238027], 90.00th=[316670], 95.00th=[316670], | 99.00th=[316670], 99.50th=[316670], 99.90th=[316670], 99.95th=[316670], | 99.99th=[316670] bw ( KiB/s): min= 1992, max= 8078, per=100.00%, avg=5035.00, stdev=4303.45, samples=2 iops : min= 1, max= 7, avg= 4.00, stdev= 4.24, samples=2 write: IOPS=1, BW=1125KiB/s (1152kB/s)(6144KiB/5459msec); 0 zone resets clat (msec): min=246, max=2486, avg=778.10, stdev=864.69 lat (msec): min=247, max=2486, avg=778.15, stdev=864.71 clat percentiles (msec): | 1.00th=[ 247], 5.00th=[ 247], 10.00th=[ 247], 20.00th=[ 253], | 30.00th=[ 253], 40.00th=[ 338], 50.00th=[ 338], 60.00th=[ 527], | 70.00th=[ 818], 80.00th=[ 818], 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= 1440, max= 2031, per=41.37%, avg=1899.40, stdev=257.20, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (usec) : 750=25.00% lat (msec) : 250=25.00%, 500=25.00%, 750=8.33%, 1000=8.33%, >=2000=8.33% cpu : usr=0.04%, sys=5.15%, ctx=124, 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=150940: Thu Jan 1 21:17:23 2026 read: IOPS=0, BW=961KiB/s (984kB/s)(5120KiB/5329msec) clat (usec): min=530, max=246373, avg=132502.61, stdev=121258.42 lat (usec): min=530, max=246374, avg=132503.52, stdev=121258.51 clat percentiles (usec): | 1.00th=[ 529], 5.00th=[ 529], 10.00th=[ 529], 20.00th=[ 529], | 30.00th=[ 3261], 40.00th=[ 3261], 50.00th=[185598], 60.00th=[185598], | 70.00th=[227541], 80.00th=[227541], 90.00th=[246416], 95.00th=[246416], | 99.00th=[246416], 99.50th=[246416], 99.90th=[246416], 99.95th=[246416], | 99.99th=[246416] bw ( KiB/s): min= 8078, max= 8078, per=100.00%, avg=8078.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=1, BW=1345KiB/s (1377kB/s)(7168KiB/5329msec); 0 zone resets clat (msec): min=158, max=2523, avg=653.13, stdev=837.44 lat (msec): min=158, max=2523, avg=653.27, stdev=837.40 clat percentiles (msec): | 1.00th=[ 159], 5.00th=[ 159], 10.00th=[ 159], 20.00th=[ 247], | 30.00th=[ 257], 40.00th=[ 257], 50.00th=[ 338], 60.00th=[ 460], | 70.00th=[ 460], 80.00th=[ 592], 90.00th=[ 2534], 95.00th=[ 2534], | 99.00th=[ 2534], 99.50th=[ 2534], 99.90th=[ 2534], 99.95th=[ 2534], | 99.99th=[ 2534] bw ( KiB/s): min= 1667, max= 4031, per=59.80%, avg=2745.60, stdev=1171.04, samples=5 iops : min= 1, max= 3, avg= 1.80, stdev= 1.10, samples=5 lat (usec) : 750=8.33% lat (msec) : 4=8.33%, 250=41.67%, 500=25.00%, 750=8.33%, >=2000=8.33% cpu : usr=0.00%, sys=7.47%, ctx=148, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=3279KiB/s (3358kB/s), 328KiB/s-1428KiB/s (336kB/s-1462kB/s), io=20.0MiB (20.0MB), run=5020-6245msec WRITE: bw=4591KiB/s (4701kB/s), 1020KiB/s-1640KiB/s (1044kB/s-1679kB/s), io=28.0MiB (29.4MB), run=5020-6245msec rand-rw: (groupid=0, jobs=1): err= 0: pid=150942: Thu Jan 1 21:17:23 2026 read: IOPS=1, BW=1108KiB/s (1135kB/s)(7168KiB/6468msec) clat (msec): min=55, max=2566, avg=727.99, stdev=939.04 lat (msec): min=55, max=2566, avg=727.99, stdev=939.04 clat percentiles (msec): | 1.00th=[ 56], 5.00th=[ 56], 10.00th=[ 56], 20.00th=[ 70], | 30.00th=[ 84], 40.00th=[ 84], 50.00th=[ 199], 60.00th=[ 835], | 70.00th=[ 835], 80.00th=[ 1284], 90.00th=[ 2567], 95.00th=[ 2567], | 99.00th=[ 2567], 99.50th=[ 2567], 99.90th=[ 2567], 99.95th=[ 2567], | 99.99th=[ 2567] bw ( KiB/s): min= 1980, max= 4087, per=80.17%, avg=2538.25, stdev=1032.93, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=0, BW=792KiB/s (811kB/s)(5120KiB/6468msec); 0 zone resets clat (msec): min=76, max=509, avg=272.91, stdev=156.53 lat (msec): min=76, max=509, avg=272.96, stdev=156.55 clat percentiles (msec): | 1.00th=[ 77], 5.00th=[ 77], 10.00th=[ 77], 20.00th=[ 77], | 30.00th=[ 228], 40.00th=[ 228], 50.00th=[ 251], 60.00th=[ 251], | 70.00th=[ 300], 80.00th=[ 300], 90.00th=[ 510], 95.00th=[ 510], | 99.00th=[ 510], 99.50th=[ 510], 99.90th=[ 510], 99.95th=[ 510], | 99.99th=[ 510] bw ( KiB/s): min= 2048, max= 4023, per=68.49%, avg=3035.50, stdev=1396.54, samples=2 iops : min= 2, max= 3, avg= 2.50, stdev= 0.71, samples=2 lat (msec) : 100=33.33%, 250=16.67%, 500=16.67%, 750=8.33%, 1000=8.33% lat (msec) : 2000=8.33%, >=2000=8.33% cpu : usr=0.03%, sys=1.50%, ctx=39, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=150943: Thu Jan 1 21:17:23 2026 read: IOPS=0, BW=320KiB/s (327kB/s)(2048KiB/6408msec) clat (msec): min=144, max=215, avg=179.54, stdev=50.20 lat (msec): min=144, max=215, avg=179.54, stdev=50.20 clat percentiles (msec): | 1.00th=[ 144], 5.00th=[ 144], 10.00th=[ 144], 20.00th=[ 144], | 30.00th=[ 144], 40.00th=[ 144], 50.00th=[ 144], 60.00th=[ 215], | 70.00th=[ 215], 80.00th=[ 215], 90.00th=[ 215], 95.00th=[ 215], | 99.00th=[ 215], 99.50th=[ 215], 99.90th=[ 215], 99.95th=[ 215], | 99.99th=[ 215] bw ( KiB/s): min= 1885, max= 2011, per=61.53%, avg=1948.00, stdev=89.10, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1598KiB/s (1636kB/s)(10.0MiB/6408msec); 0 zone resets clat (msec): min=139, max=2628, avg=585.98, stdev=729.88 lat (msec): min=139, max=2628, avg=596.76, stdev=726.47 clat percentiles (msec): | 1.00th=[ 140], 5.00th=[ 140], 10.00th=[ 140], 20.00th=[ 241], | 30.00th=[ 309], 40.00th=[ 326], 50.00th=[ 330], 60.00th=[ 388], | 70.00th=[ 388], 80.00th=[ 481], 90.00th=[ 634], 95.00th=[ 2635], | 99.00th=[ 2635], 99.50th=[ 2635], 99.90th=[ 2635], 99.95th=[ 2635], | 99.99th=[ 2635] bw ( KiB/s): min= 2011, max= 4055, per=52.35%, avg=2320.29, stdev=765.08, samples=7 iops : min= 1, max= 3, avg= 1.43, stdev= 0.79, samples=7 lat (msec) : 250=33.33%, 500=50.00%, 750=8.33%, >=2000=8.33% cpu : usr=0.00%, sys=2.98%, ctx=125, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=150944: Thu Jan 1 21:17:23 2026 read: IOPS=0, BW=1004KiB/s (1028kB/s)(6144KiB/6121msec) clat (msec): min=136, max=355, avg=204.11, stdev=88.06 lat (msec): min=136, max=355, avg=204.11, stdev=88.06 clat percentiles (msec): | 1.00th=[ 138], 5.00th=[ 138], 10.00th=[ 138], 20.00th=[ 142], | 30.00th=[ 142], 40.00th=[ 159], 50.00th=[ 159], 60.00th=[ 167], | 70.00th=[ 268], 80.00th=[ 268], 90.00th=[ 355], 95.00th=[ 355], | 99.00th=[ 355], 99.50th=[ 355], 99.90th=[ 355], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 2043, max= 4096, per=100.00%, avg=3408.67, stdev=1182.71, samples=3 iops : min= 1, max= 4, avg= 2.67, stdev= 1.53, samples=3 write: IOPS=0, BW=1004KiB/s (1028kB/s)(6144KiB/6121msec); 0 zone resets clat (msec): min=153, max=2963, avg=815.77, stdev=1065.12 lat (msec): min=153, max=2963, avg=815.84, stdev=1065.10 clat percentiles (msec): | 1.00th=[ 155], 5.00th=[ 155], 10.00th=[ 155], 20.00th=[ 241], | 30.00th=[ 241], 40.00th=[ 409], 50.00th=[ 409], 60.00th=[ 550], | 70.00th=[ 575], 80.00th=[ 575], 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= 1490, max= 2048, per=43.34%, avg=1920.80, stdev=242.46, samples=5 iops : min= 1, max= 2, avg= 1.20, stdev= 0.45, samples=5 lat (msec) : 250=50.00%, 500=25.00%, 750=16.67%, >=2000=8.33% cpu : usr=0.00%, sys=1.85%, ctx=49, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=150945: Thu Jan 1 21:17:23 2026 read: IOPS=0, BW=827KiB/s (846kB/s)(5120KiB/6194msec) clat (msec): min=72, max=368, avg=205.97, stdev=122.16 lat (msec): min=72, max=368, avg=205.98, stdev=122.16 clat percentiles (msec): | 1.00th=[ 73], 5.00th=[ 73], 10.00th=[ 73], 20.00th=[ 73], | 30.00th=[ 110], 40.00th=[ 110], 50.00th=[ 194], 60.00th=[ 194], | 70.00th=[ 288], 80.00th=[ 288], 90.00th=[ 368], 95.00th=[ 368], | 99.00th=[ 368], 99.50th=[ 368], 99.90th=[ 368], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 1980, max= 4087, per=85.44%, avg=2705.00, stdev=1197.33, samples=3 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=3 write: IOPS=1, BW=1157KiB/s (1185kB/s)(7168KiB/6194msec); 0 zone resets clat (msec): min=152, max=2912, avg=725.97, stdev=981.11 lat (msec): min=152, max=2912, avg=726.05, stdev=981.12 clat percentiles (msec): | 1.00th=[ 153], 5.00th=[ 153], 10.00th=[ 153], 20.00th=[ 215], | 30.00th=[ 296], 40.00th=[ 296], 50.00th=[ 338], 60.00th=[ 464], | 70.00th=[ 464], 80.00th=[ 701], 90.00th=[ 2903], 95.00th=[ 2903], | 99.00th=[ 2903], 99.50th=[ 2903], 99.90th=[ 2903], 99.95th=[ 2903], | 99.99th=[ 2903] bw ( KiB/s): min= 1729, max= 6035, per=62.36%, avg=2763.60, stdev=1833.20, samples=5 iops : min= 1, max= 5, avg= 1.80, stdev= 1.79, samples=5 lat (msec) : 100=8.33%, 250=33.33%, 500=41.67%, 750=8.33%, >=2000=8.33% cpu : usr=0.00%, sys=2.34%, ctx=83, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=3166KiB/s (3242kB/s), 320KiB/s-1108KiB/s (327kB/s-1135kB/s), io=20.0MiB (20.0MB), run=6121-6468msec WRITE: bw=4433KiB/s (4539kB/s), 792KiB/s-1598KiB/s (811kB/s-1636kB/s), io=28.0MiB (29.4MB), run=6121-6468msec 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=150953: Thu Jan 1 21:17:38 2026 read: IOPS=1, BW=4347KiB/s (4451kB/s)(12.0MiB/2827msec) clat (msec): min=686, max=1051, avg=907.61, stdev=194.40 lat (msec): min=686, max=1051, avg=907.61, stdev=194.40 clat percentiles (msec): | 1.00th=[ 684], 5.00th=[ 684], 10.00th=[ 684], 20.00th=[ 684], | 30.00th=[ 684], 40.00th=[ 986], 50.00th=[ 986], 60.00th=[ 986], | 70.00th=[ 1053], 80.00th=[ 1053], 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= 8094, max= 8126, per=100.00%, avg=8110.00, stdev=22.63, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=3.36%, ctx=51, 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=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=150955: Thu Jan 1 21:17:38 2026 read: IOPS=0, BW=1387KiB/s (1420kB/s)(4096KiB/2953msec) clat (nsec): min=933502k, max=933502k, avg=933502394.00, stdev= 0.00 lat (nsec): min=933505k, max=933505k, avg=933504576.00, 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= 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 write: IOPS=0, BW=2774KiB/s (2841kB/s)(8192KiB/2953msec); 0 zone resets clat (msec): min=939, max=944, avg=942.40, stdev= 3.46 lat (msec): min=940, max=945, avg=942.73, stdev= 3.54 clat percentiles (msec): | 1.00th=[ 944], 5.00th=[ 944], 10.00th=[ 944], 20.00th=[ 944], | 30.00th=[ 944], 40.00th=[ 944], 50.00th=[ 944], 60.00th=[ 944], | 70.00th=[ 944], 80.00th=[ 944], 90.00th=[ 944], 95.00th=[ 944], | 99.00th=[ 944], 99.50th=[ 944], 99.90th=[ 944], 99.95th=[ 944], | 99.99th=[ 944] bw ( KiB/s): min= 8078, max= 8078, per=72.80%, avg=8078.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 1000=100.00% cpu : usr=0.00%, sys=3.66%, ctx=48, 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=150957: Thu Jan 1 21:17:38 2026 write: IOPS=1, BW=7918KiB/s (8108kB/s)(12.0MiB/1552msec); 0 zone resets clat (msec): min=439, max=570, avg=503.69, stdev=65.30 lat (msec): min=440, max=572, avg=505.55, stdev=66.29 clat percentiles (msec): | 1.00th=[ 439], 5.00th=[ 439], 10.00th=[ 439], 20.00th=[ 439], | 30.00th=[ 439], 40.00th=[ 502], 50.00th=[ 502], 60.00th=[ 502], | 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= 6872, max= 8126, per=67.58%, avg=7499.00, stdev=886.71, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 750=66.67% cpu : usr=0.13%, sys=7.74%, ctx=51, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=150958: Thu Jan 1 21:17:38 2026 write: IOPS=1, BW=5144KiB/s (5267kB/s)(12.0MiB/2389msec); 0 zone resets clat (msec): min=501, max=1206, avg=770.06, stdev=380.85 lat (msec): min=502, max=1206, avg=771.62, stdev=379.96 clat percentiles (msec): | 1.00th=[ 502], 5.00th=[ 502], 10.00th=[ 502], 20.00th=[ 502], | 30.00th=[ 502], 40.00th=[ 600], 50.00th=[ 600], 60.00th=[ 600], | 70.00th=[ 1200], 80.00th=[ 1200], 90.00th=[ 1200], 95.00th=[ 1200], | 99.00th=[ 1200], 99.50th=[ 1200], 99.90th=[ 1200], 99.95th=[ 1200], | 99.99th=[ 1200] bw ( KiB/s): min= 8094, max= 8126, per=73.09%, avg=8110.00, stdev=22.63, 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=0.13%, sys=5.07%, ctx=50, 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=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=5548KiB/s (5681kB/s), 1387KiB/s-4347KiB/s (1420kB/s-4451kB/s), io=16.0MiB (16.8MB), run=2827-2953msec WRITE: bw=10.8MiB/s (11.4MB/s), 2774KiB/s-7918KiB/s (2841kB/s-8108kB/s), io=32.0MiB (33.6MB), run=1552-2953msec rand-rw: (groupid=0, jobs=1): err= 0: pid=150954: Thu Jan 1 21:17:39 2026 read: IOPS=1, BW=4531KiB/s (4640kB/s)(12.0MiB/2712msec) clat (msec): min=756, max=949, avg=866.62, stdev=99.10 lat (msec): min=756, max=949, avg=866.62, stdev=99.10 clat percentiles (msec): | 1.00th=[ 760], 5.00th=[ 760], 10.00th=[ 760], 20.00th=[ 760], | 30.00th=[ 760], 40.00th=[ 894], 50.00th=[ 894], 60.00th=[ 894], | 70.00th=[ 953], 80.00th=[ 953], 90.00th=[ 953], 95.00th=[ 953], | 99.00th=[ 953], 99.50th=[ 953], 99.90th=[ 953], 99.95th=[ 953], | 99.99th=[ 953] bw ( KiB/s): min= 8062, max= 8159, per=100.00%, avg=8110.50, stdev=68.59, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=100.00% cpu : usr=0.04%, sys=9.85%, ctx=297, 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=150956: Thu Jan 1 21:17:39 2026 read: IOPS=0, BW=1656KiB/s (1695kB/s)(4096KiB/2474msec) clat (nsec): min=897011k, max=897011k, avg=897011145.00, stdev= 0.00 lat (nsec): min=897015k, max=897015k, avg=897014685.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 894], 5.00th=[ 894], 10.00th=[ 894], 20.00th=[ 894], | 30.00th=[ 894], 40.00th=[ 894], 50.00th=[ 894], 60.00th=[ 894], | 70.00th=[ 894], 80.00th=[ 894], 90.00th=[ 894], 95.00th=[ 894], | 99.00th=[ 894], 99.50th=[ 894], 99.90th=[ 894], 99.95th=[ 894], | 99.99th=[ 894] bw ( KiB/s): min= 8062, max= 8062, per=100.00%, avg=8062.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3311KiB/s (3391kB/s)(8192KiB/2474msec); 0 zone resets clat (msec): min=556, max=939, avg=748.32, stdev=270.93 lat (msec): min=556, max=941, avg=749.11, stdev=271.70 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=[ 944], | 70.00th=[ 944], 80.00th=[ 944], 90.00th=[ 944], 95.00th=[ 944], | 99.00th=[ 944], 99.50th=[ 944], 99.90th=[ 944], 99.95th=[ 944], | 99.99th=[ 944] bw ( KiB/s): min= 8143, max= 8143, per=88.60%, avg=8143.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=33.33%, 1000=66.67% cpu : usr=0.00%, sys=7.04%, ctx=99, 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=150959: Thu Jan 1 21:17:39 2026 write: IOPS=0, BW=3447KiB/s (3530kB/s)(12.0MiB/3565msec); 0 zone resets clat (msec): min=243, max=2611, avg=1093.39, stdev=1318.10 lat (msec): min=244, max=2612, avg=1093.75, stdev=1318.08 clat percentiles (msec): | 1.00th=[ 245], 5.00th=[ 245], 10.00th=[ 245], 20.00th=[ 245], | 30.00th=[ 245], 40.00th=[ 426], 50.00th=[ 426], 60.00th=[ 426], | 70.00th=[ 2601], 80.00th=[ 2601], 90.00th=[ 2601], 95.00th=[ 2601], | 99.00th=[ 2601], 99.50th=[ 2601], 99.90th=[ 2601], 99.95th=[ 2601], | 99.99th=[ 2601] bw ( KiB/s): min=16318, max=16318, per=100.00%, avg=16318.00, stdev= 0.00, samples=1 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 500=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=3.51%, ctx=68, 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=150960: Thu Jan 1 21:17:39 2026 write: IOPS=1, BW=4849KiB/s (4966kB/s)(12.0MiB/2534msec); 0 zone resets clat (msec): min=341, max=1316, avg=741.60, stdev=510.36 lat (msec): min=341, max=1317, avg=742.31, stdev=511.09 clat percentiles (msec): | 1.00th=[ 342], 5.00th=[ 342], 10.00th=[ 342], 20.00th=[ 342], | 30.00th=[ 342], 40.00th=[ 567], 50.00th=[ 567], 60.00th=[ 567], | 70.00th=[ 1318], 80.00th=[ 1318], 90.00th=[ 1318], 95.00th=[ 1318], | 99.00th=[ 1318], 99.50th=[ 1318], 99.90th=[ 1318], 99.95th=[ 1318], | 99.99th=[ 1318] bw ( KiB/s): min=16125, max=16125, per=100.00%, avg=16125.00, stdev= 0.00, samples=1 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.08%, sys=4.26%, ctx=55, 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=6041KiB/s (6186kB/s), 1656KiB/s-4531KiB/s (1695kB/s-4640kB/s), io=16.0MiB (16.8MB), run=2474-2712msec WRITE: bw=9192KiB/s (9412kB/s), 3311KiB/s-4849KiB/s (3391kB/s-4966kB/s), io=32.0MiB (33.6MB), run=2474-3565msec