== sanity test 398b: DIO and buffer IO race ============== 02:46:38 (1769759198) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 3.0216 s, 16.7 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=182960: Fri Jan 30 02:47:48 2026 read: IOPS=25, BW=100KiB/s (103kB/s)(5992KiB/59641msec) clat (usec): min=116, max=635994, avg=21594.09, stdev=20571.51 lat (usec): min=117, max=635996, avg=21595.13, stdev=20571.49 clat percentiles (usec): | 1.00th=[ 163], 5.00th=[ 7046], 10.00th=[ 9241], 20.00th=[ 11338], | 30.00th=[ 13435], 40.00th=[ 15795], 50.00th=[ 18482], 60.00th=[ 21365], | 70.00th=[ 25035], 80.00th=[ 29492], 90.00th=[ 36963], 95.00th=[ 43779], | 99.00th=[ 76022], 99.50th=[ 85459], 99.90th=[112722], 99.95th=[633340], | 99.99th=[633340] bw ( KiB/s): min= 6, max= 160, per=25.04%, avg=99.90, stdev=26.46, samples=118 iops : min= 1, max= 40, avg=24.44, stdev= 6.64, samples=118 write: IOPS=26, BW=106KiB/s (108kB/s)(6296KiB/59641msec); 0 zone resets clat (usec): min=692, max=98248, avg=17209.66, stdev=15937.02 lat (usec): min=693, max=98250, avg=17211.13, stdev=15936.81 clat percentiles (usec): | 1.00th=[ 955], 5.00th=[ 1188], 10.00th=[ 1745], 20.00th=[ 2704], | 30.00th=[ 4817], 40.00th=[ 9241], 50.00th=[13698], 60.00th=[17695], | 70.00th=[22152], 80.00th=[28443], 90.00th=[40109], 95.00th=[50070], | 99.00th=[63701], 99.50th=[72877], 99.90th=[96994], 99.95th=[98042], | 99.99th=[98042] bw ( KiB/s): min= 31, max= 198, per=25.34%, avg=105.93, stdev=29.86, samples=117 iops : min= 7, max= 49, avg=25.96, stdev= 7.45, samples=117 lat (usec) : 250=1.01%, 500=0.59%, 750=0.07%, 1000=0.85% lat (msec) : 2=5.99%, 4=7.23%, 10=12.14%, 20=32.78%, 50=35.38% lat (msec) : 100=3.91%, 250=0.03%, 750=0.03% cpu : usr=0.12%, sys=12.23%, ctx=7382, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=182961: Fri Jan 30 02:47:48 2026 read: IOPS=25, BW=101KiB/s (103kB/s)(5940KiB/58962msec) clat (usec): min=93, max=531684, avg=21546.16, stdev=18130.13 lat (usec): min=94, max=531686, avg=21547.12, stdev=18130.15 clat percentiles (usec): | 1.00th=[ 165], 5.00th=[ 7242], 10.00th=[ 9241], 20.00th=[ 11731], | 30.00th=[ 13960], 40.00th=[ 16319], 50.00th=[ 18744], 60.00th=[ 21627], | 70.00th=[ 24773], 80.00th=[ 28967], 90.00th=[ 36439], 95.00th=[ 44827], | 99.00th=[ 64750], 99.50th=[ 68682], 99.90th=[102237], 99.95th=[530580], | 99.99th=[530580] bw ( KiB/s): min= 15, max= 175, per=25.38%, avg=101.28, stdev=26.35, samples=116 iops : min= 3, max= 43, avg=24.79, stdev= 6.66, samples=116 write: IOPS=26, BW=108KiB/s (110kB/s)(6348KiB/58962msec); 0 zone resets clat (usec): min=748, max=138574, avg=16858.19, stdev=16384.05 lat (usec): min=749, max=138575, avg=16860.64, stdev=16387.96 clat percentiles (usec): | 1.00th=[ 922], 5.00th=[ 1254], 10.00th=[ 1680], 20.00th=[ 2606], | 30.00th=[ 4490], 40.00th=[ 9110], 50.00th=[ 12649], 60.00th=[ 16712], | 70.00th=[ 21103], 80.00th=[ 28181], 90.00th=[ 39060], 95.00th=[ 49546], | 99.00th=[ 71828], 99.50th=[ 79168], 99.90th=[133694], 99.95th=[139461], | 99.99th=[139461] bw ( KiB/s): min= 31, max= 255, per=25.85%, avg=108.03, stdev=36.54, samples=116 iops : min= 7, max= 63, avg=26.48, stdev= 9.13, samples=116 lat (usec) : 100=0.03%, 250=0.75%, 500=0.52%, 750=0.13%, 1000=0.81% lat (msec) : 2=6.35%, 4=7.91%, 10=10.90%, 20=34.08%, 50=34.44% lat (msec) : 100=3.91%, 250=0.13%, 750=0.03% cpu : usr=0.10%, sys=12.30%, ctx=7312, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=182962: Fri Jan 30 02:47:48 2026 read: IOPS=25, BW=100KiB/s (103kB/s)(6028KiB/60041msec) clat (usec): min=94, max=142578, avg=21813.98, stdev=13652.23 lat (usec): min=95, max=142578, avg=21815.00, stdev=13652.24 clat percentiles (usec): | 1.00th=[ 190], 5.00th=[ 7111], 10.00th=[ 9110], 20.00th=[ 11600], | 30.00th=[ 13698], 40.00th=[ 16057], 50.00th=[ 18744], 60.00th=[ 22152], | 70.00th=[ 25822], 80.00th=[ 30540], 90.00th=[ 37487], 95.00th=[ 46400], | 99.00th=[ 71828], 99.50th=[ 80217], 99.90th=[ 91751], 99.95th=[141558], | 99.99th=[141558] bw ( KiB/s): min= 31, max= 159, per=25.19%, avg=100.53, stdev=23.30, samples=118 iops : min= 7, max= 39, avg=24.59, stdev= 5.85, samples=118 write: IOPS=26, BW=104KiB/s (107kB/s)(6260KiB/60041msec); 0 zone resets clat (usec): min=740, max=525465, avg=17205.33, stdev=20178.45 lat (usec): min=741, max=525469, avg=17210.10, stdev=20177.94 clat percentiles (usec): | 1.00th=[ 955], 5.00th=[ 1188], 10.00th=[ 1582], 20.00th=[ 2704], | 30.00th=[ 4621], 40.00th=[ 9241], 50.00th=[ 13304], 60.00th=[ 17171], | 70.00th=[ 21890], 80.00th=[ 29230], 90.00th=[ 38536], 95.00th=[ 46924], | 99.00th=[ 62653], 99.50th=[ 72877], 99.90th=[120062], 99.95th=[526386], | 99.99th=[526386] bw ( KiB/s): min= 23, max= 184, per=24.95%, avg=104.29, stdev=34.44, samples=118 iops : min= 5, max= 46, avg=25.54, stdev= 8.64, samples=118 lat (usec) : 100=0.03%, 250=0.75%, 500=0.59%, 750=0.20%, 1000=0.88% lat (msec) : 2=6.51%, 4=6.61%, 10=12.21%, 20=32.16%, 50=36.20% lat (msec) : 100=3.74%, 250=0.10%, 750=0.03% cpu : usr=0.09%, sys=12.05%, ctx=7328, 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=182963: Fri Jan 30 02:47:48 2026 read: IOPS=25, BW=101KiB/s (104kB/s)(6052KiB/59777msec) clat (usec): min=105, max=88088, avg=21153.09, stdev=12435.93 lat (usec): min=105, max=88089, avg=21158.57, stdev=12436.61 clat percentiles (usec): | 1.00th=[ 153], 5.00th=[ 7111], 10.00th=[ 9110], 20.00th=[11731], | 30.00th=[13960], 40.00th=[16057], 50.00th=[18482], 60.00th=[21365], | 70.00th=[24773], 80.00th=[28967], 90.00th=[36439], 95.00th=[44827], | 99.00th=[64226], 99.50th=[72877], 99.90th=[83362], 99.95th=[88605], | 99.99th=[88605] bw ( KiB/s): min= 31, max= 166, per=25.42%, avg=101.44, stdev=25.86, samples=117 iops : min= 7, max= 41, avg=24.83, stdev= 6.48, samples=117 write: IOPS=26, BW=104KiB/s (107kB/s)(6236KiB/59777msec); 0 zone resets clat (usec): min=660, max=551742, avg=17680.20, stdev=20969.64 lat (usec): min=661, max=551744, avg=17682.29, stdev=20969.08 clat percentiles (usec): | 1.00th=[ 922], 5.00th=[ 1237], 10.00th=[ 1713], 20.00th=[ 2868], | 30.00th=[ 4817], 40.00th=[ 9765], 50.00th=[ 13960], 60.00th=[ 17695], | 70.00th=[ 22676], 80.00th=[ 28967], 90.00th=[ 39060], 95.00th=[ 49546], | 99.00th=[ 71828], 99.50th=[ 80217], 99.90th=[128451], 99.95th=[549454], | 99.99th=[549454] bw ( KiB/s): min= 39, max= 192, per=25.08%, avg=104.83, stdev=30.37, samples=117 iops : min= 9, max= 48, avg=25.68, stdev= 7.68, samples=117 lat (usec) : 250=0.88%, 500=0.55%, 750=0.13%, 1000=0.68% lat (msec) : 2=5.86%, 4=7.10%, 10=11.88%, 20=33.07%, 50=35.87% lat (msec) : 100=3.87%, 250=0.07%, 750=0.03% cpu : usr=0.11%, sys=12.24%, ctx=7443, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=400KiB/s (410kB/s), 100KiB/s-101KiB/s (103kB/s-104kB/s), io=23.4MiB (24.6MB), run=58962-60041msec WRITE: bw=419KiB/s (429kB/s), 104KiB/s-108KiB/s (107kB/s-110kB/s), io=24.6MiB (25.7MB), run=58962-60041msec rand-rw: (groupid=0, jobs=1): err= 0: pid=182955: Fri Jan 30 02:48:06 2026 read: IOPS=19, BW=77.4KiB/s (79.3kB/s)(5992KiB/77381msec) clat (msec): min=3, max=657, avg=20.55, stdev=23.70 lat (msec): min=3, max=657, avg=20.55, stdev=23.70 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 6], 10.00th=[ 7], 20.00th=[ 9], | 30.00th=[ 10], 40.00th=[ 13], 50.00th=[ 15], 60.00th=[ 17], | 70.00th=[ 22], 80.00th=[ 28], 90.00th=[ 45], 95.00th=[ 57], | 99.00th=[ 82], 99.50th=[ 95], 99.90th=[ 144], 99.95th=[ 659], | 99.99th=[ 659] bw ( KiB/s): min= 15, max= 215, per=24.93%, avg=77.30, stdev=44.49, samples=152 iops : min= 3, max= 53, avg=18.88, stdev=11.17, samples=152 write: IOPS=20, BW=81.4KiB/s (83.3kB/s)(6296KiB/77381msec); 0 zone resets clat (msec): min=5, max=151, avg=29.45, stdev=19.49 lat (msec): min=5, max=151, avg=29.45, stdev=19.49 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 23], 60.00th=[ 28], | 70.00th=[ 35], 80.00th=[ 43], 90.00th=[ 55], 95.00th=[ 66], | 99.00th=[ 96], 99.50th=[ 114], 99.90th=[ 146], 99.95th=[ 153], | 99.99th=[ 153] bw ( KiB/s): min= 15, max= 223, per=25.03%, avg=81.10, stdev=43.61, samples=152 iops : min= 3, max= 55, avg=19.82, stdev=10.96, samples=152 lat (msec) : 4=0.23%, 10=16.80%, 20=37.89%, 50=34.44%, 100=9.99% lat (msec) : 250=0.62%, 750=0.03% cpu : usr=0.08%, sys=4.79%, ctx=5005, 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=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=182956: Fri Jan 30 02:48:06 2026 read: IOPS=19, BW=76.7KiB/s (78.5kB/s)(5940KiB/77446msec) clat (msec): min=3, max=533, avg=20.54, stdev=21.88 lat (msec): min=3, max=533, avg=20.54, stdev=21.88 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 6], 10.00th=[ 7], 20.00th=[ 9], | 30.00th=[ 10], 40.00th=[ 12], 50.00th=[ 14], 60.00th=[ 17], | 70.00th=[ 22], 80.00th=[ 29], 90.00th=[ 44], 95.00th=[ 61], | 99.00th=[ 86], 99.50th=[ 94], 99.90th=[ 159], 99.95th=[ 535], | 99.99th=[ 535] bw ( KiB/s): min= 8, max= 248, per=24.83%, avg=76.97, stdev=46.25, samples=153 iops : min= 2, max= 62, avg=18.79, stdev=11.61, samples=153 write: IOPS=20, BW=81.0KiB/s (83.9kB/s)(6348KiB/77446msec); 0 zone resets clat (msec): min=6, max=152, avg=29.42, stdev=19.52 lat (msec): min=6, max=152, avg=29.42, stdev=19.53 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 23], 60.00th=[ 28], | 70.00th=[ 35], 80.00th=[ 43], 90.00th=[ 54], 95.00th=[ 66], | 99.00th=[ 104], 99.50th=[ 118], 99.90th=[ 138], 99.95th=[ 153], | 99.99th=[ 153] bw ( KiB/s): min= 23, max= 206, per=25.38%, avg=82.24, stdev=43.65, samples=153 iops : min= 5, max= 51, avg=20.11, stdev=10.97, samples=153 lat (msec) : 4=0.13%, 10=17.25%, 20=36.39%, 50=35.68%, 100=9.86% lat (msec) : 250=0.65%, 750=0.03% cpu : usr=0.08%, sys=4.63%, ctx=4951, 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=182957: Fri Jan 30 02:48:06 2026 read: IOPS=19, BW=78.4KiB/s (80.2kB/s)(6028KiB/76934msec) clat (msec): min=3, max=159, avg=20.47, stdev=17.60 lat (msec): min=3, max=159, avg=20.47, stdev=17.60 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 6], 10.00th=[ 7], 20.00th=[ 9], | 30.00th=[ 11], 40.00th=[ 12], 50.00th=[ 15], 60.00th=[ 18], | 70.00th=[ 22], 80.00th=[ 30], 90.00th=[ 45], 95.00th=[ 59], | 99.00th=[ 86], 99.50th=[ 96], 99.90th=[ 144], 99.95th=[ 159], | 99.99th=[ 159] bw ( KiB/s): min= 16, max= 239, per=25.33%, avg=78.52, stdev=45.69, samples=151 iops : min= 4, max= 59, avg=19.18, stdev=11.45, samples=151 write: IOPS=20, BW=81.4KiB/s (83.3kB/s)(6260KiB/76934msec); 0 zone resets clat (msec): min=6, max=536, avg=29.29, stdev=22.98 lat (msec): min=6, max=536, avg=29.29, stdev=22.98 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 23], 60.00th=[ 28], | 70.00th=[ 34], 80.00th=[ 43], 90.00th=[ 55], 95.00th=[ 66], | 99.00th=[ 96], 99.50th=[ 109], 99.90th=[ 153], 99.95th=[ 535], | 99.99th=[ 535] bw ( KiB/s): min= 23, max= 207, per=25.13%, avg=81.43, stdev=44.57, samples=151 iops : min= 5, max= 51, avg=19.91, stdev=11.21, samples=151 lat (msec) : 4=0.26%, 10=16.80%, 20=38.41%, 50=34.38%, 100=9.57% lat (msec) : 250=0.55%, 750=0.03% cpu : usr=0.08%, sys=4.63%, ctx=4921, 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=182958: Fri Jan 30 02:48:06 2026 read: IOPS=19, BW=78.5KiB/s (80.4kB/s)(6052KiB/77057msec) clat (msec): min=3, max=117, avg=20.16, stdev=16.76 lat (msec): min=3, max=117, avg=20.16, stdev=16.76 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 6], 10.00th=[ 7], 20.00th=[ 9], | 30.00th=[ 10], 40.00th=[ 12], 50.00th=[ 15], 60.00th=[ 17], | 70.00th=[ 22], 80.00th=[ 30], 90.00th=[ 45], 95.00th=[ 58], | 99.00th=[ 80], 99.50th=[ 87], 99.90th=[ 94], 99.95th=[ 117], | 99.99th=[ 117] bw ( KiB/s): min= 7, max= 247, per=25.42%, avg=78.79, stdev=45.84, samples=152 iops : min= 1, max= 61, avg=19.24, stdev=11.51, samples=152 write: IOPS=20, BW=80.9KiB/s (82.9kB/s)(6236KiB/77057msec); 0 zone resets clat (msec): min=7, max=543, avg=29.70, stdev=23.56 lat (msec): min=7, max=543, avg=29.70, stdev=23.56 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 23], 60.00th=[ 28], | 70.00th=[ 34], 80.00th=[ 43], 90.00th=[ 57], 95.00th=[ 68], | 99.00th=[ 100], 99.50th=[ 122], 99.90th=[ 148], 99.95th=[ 542], | 99.99th=[ 542] bw ( KiB/s): min= 16, max= 192, per=25.03%, avg=81.09, stdev=42.05, samples=152 iops : min= 4, max= 48, avg=19.82, stdev=10.57, samples=152 lat (msec) : 4=0.10%, 10=16.99%, 20=38.44%, 50=33.40%, 100=10.55% lat (msec) : 250=0.49%, 750=0.03% cpu : usr=0.08%, sys=4.75%, ctx=4867, 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=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=310KiB/s (317kB/s), 76.7KiB/s-78.5KiB/s (78.5kB/s-80.4kB/s), io=23.4MiB (24.6MB), run=76934-77446msec WRITE: bw=325KiB/s (332kB/s), 80.9KiB/s-81.0KiB/s (82.9kB/s-83.9kB/s), io=24.6MiB (25.7MB), run=76934-77446msec 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=183001: Fri Jan 30 02:48:30 2026 read: IOPS=19, BW=320KiB/s (328kB/s)(5920KiB/18504msec) clat (usec): min=109, max=120408, avg=25141.75, stdev=16198.67 lat (usec): min=110, max=120408, avg=25144.82, stdev=16199.77 clat percentiles (usec): | 1.00th=[ 151], 5.00th=[ 253], 10.00th=[ 9372], 20.00th=[ 13435], | 30.00th=[ 16909], 40.00th=[ 19530], 50.00th=[ 23200], 60.00th=[ 26608], | 70.00th=[ 30278], 80.00th=[ 35390], 90.00th=[ 43254], 95.00th=[ 50594], | 99.00th=[ 90702], 99.50th=[ 93848], 99.90th=[120062], 99.95th=[120062], | 99.99th=[120062] bw ( KiB/s): min= 128, max= 542, per=24.42%, avg=313.83, stdev=94.42, samples=36 iops : min= 8, max= 33, avg=18.97, stdev= 5.85, samples=36 write: IOPS=21, BW=344KiB/s (352kB/s)(6368KiB/18504msec); 0 zone resets clat (usec): min=1229, max=105917, avg=23066.24, stdev=20347.73 lat (usec): min=1230, max=105919, avg=23068.07, stdev=20347.72 clat percentiles (usec): | 1.00th=[ 1598], 5.00th=[ 2073], 10.00th=[ 3195], 20.00th=[ 4883], | 30.00th=[ 7832], 40.00th=[ 12780], 50.00th=[ 17433], 60.00th=[ 22152], | 70.00th=[ 29754], 80.00th=[ 40109], 90.00th=[ 50070], 95.00th=[ 61604], | 99.00th=[ 96994], 99.50th=[ 99091], 99.90th=[106431], 99.95th=[106431], | 99.99th=[106431] bw ( KiB/s): min= 127, max= 542, per=25.31%, avg=342.25, stdev=100.69, samples=36 iops : min= 7, max= 33, avg=20.75, stdev= 6.24, samples=36 lat (usec) : 250=2.34%, 500=1.17%, 750=0.52% lat (msec) : 2=2.73%, 4=5.08%, 10=11.20%, 20=25.00%, 50=44.40% lat (msec) : 100=7.29%, 250=0.26% cpu : usr=0.11%, sys=11.90%, ctx=1997, 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=183002: Fri Jan 30 02:48:30 2026 read: IOPS=19, BW=318KiB/s (325kB/s)(5744KiB/18089msec) clat (usec): min=132, max=115101, avg=26679.88, stdev=15840.76 lat (usec): min=132, max=115103, avg=26683.30, stdev=15838.92 clat percentiles (usec): | 1.00th=[ 163], 5.00th=[ 7504], 10.00th=[ 12125], 20.00th=[ 15401], | 30.00th=[ 17695], 40.00th=[ 20841], 50.00th=[ 24511], 60.00th=[ 27395], | 70.00th=[ 31065], 80.00th=[ 35914], 90.00th=[ 44303], 95.00th=[ 55313], | 99.00th=[ 90702], 99.50th=[102237], 99.90th=[114820], 99.95th=[114820], | 99.99th=[114820] bw ( KiB/s): min= 191, max= 539, per=24.83%, avg=319.03, stdev=86.50, samples=35 iops : min= 11, max= 33, avg=19.31, stdev= 5.39, samples=35 write: IOPS=22, BW=362KiB/s (370kB/s)(6544KiB/18089msec); 0 zone resets clat (usec): min=1033, max=121869, avg=20733.11, stdev=17871.23 lat (usec): min=1034, max=121872, avg=20735.17, stdev=17871.23 clat percentiles (usec): | 1.00th=[ 1303], 5.00th=[ 1876], 10.00th=[ 2638], 20.00th=[ 4817], | 30.00th=[ 7570], 40.00th=[ 12649], 50.00th=[ 16581], 60.00th=[ 20317], | 70.00th=[ 25822], 80.00th=[ 34866], 90.00th=[ 46400], 95.00th=[ 54789], | 99.00th=[ 71828], 99.50th=[ 80217], 99.90th=[122160], 99.95th=[122160], | 99.99th=[122160] bw ( KiB/s): min= 160, max= 766, per=26.70%, avg=361.00, stdev=113.47, samples=35 iops : min= 10, max= 47, avg=21.94, stdev= 7.00, samples=35 lat (usec) : 250=1.04%, 500=1.04% lat (msec) : 2=3.12%, 4=5.60%, 10=10.42%, 20=27.47%, 50=44.66% lat (msec) : 100=6.25%, 250=0.39% cpu : usr=0.13%, sys=12.46%, ctx=1997, 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=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=183003: Fri Jan 30 02:48:30 2026 read: IOPS=20, BW=336KiB/s (344kB/s)(6256KiB/18637msec) clat (usec): min=124, max=113988, avg=25847.50, stdev=16778.80 lat (usec): min=127, max=113989, avg=25849.04, stdev=16778.33 clat percentiles (usec): | 1.00th=[ 143], 5.00th=[ 347], 10.00th=[ 10290], 20.00th=[ 14091], | 30.00th=[ 17171], 40.00th=[ 20055], 50.00th=[ 22938], 60.00th=[ 26608], | 70.00th=[ 30540], 80.00th=[ 35914], 90.00th=[ 45351], 95.00th=[ 57410], | 99.00th=[ 94897], 99.50th=[106431], 99.90th=[113771], 99.95th=[113771], | 99.99th=[113771] bw ( KiB/s): min= 192, max= 509, per=26.17%, avg=336.27, stdev=80.44, samples=37 iops : min= 12, max= 31, avg=20.41, stdev= 4.95, samples=37 write: IOPS=20, BW=324KiB/s (331kB/s)(6032KiB/18637msec); 0 zone resets clat (usec): min=1138, max=96894, avg=22537.73, stdev=18308.23 lat (usec): min=1140, max=96897, avg=22540.90, stdev=18308.41 clat percentiles (usec): | 1.00th=[ 1565], 5.00th=[ 2024], 10.00th=[ 3097], 20.00th=[ 4948], | 30.00th=[ 9110], 40.00th=[13566], 50.00th=[18482], 60.00th=[24249], | 70.00th=[29754], 80.00th=[36439], 90.00th=[47449], 95.00th=[57410], | 99.00th=[77071], 99.50th=[87557], 99.90th=[96994], 99.95th=[96994], | 99.99th=[96994] bw ( KiB/s): min= 128, max= 640, per=23.92%, avg=323.38, stdev=104.24, samples=37 iops : min= 8, max= 40, avg=19.59, stdev= 6.58, samples=37 lat (usec) : 250=2.21%, 500=1.04%, 750=0.39% lat (msec) : 2=2.34%, 4=5.21%, 10=9.24%, 20=26.04%, 50=45.83% lat (msec) : 100=7.42%, 250=0.26% cpu : usr=0.09%, sys=11.74%, ctx=2072, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=183004: Fri Jan 30 02:48:30 2026 read: IOPS=21, BW=338KiB/s (346kB/s)(6032KiB/17831msec) clat (usec): min=90, max=110578, avg=25072.67, stdev=16137.42 lat (usec): min=91, max=110579, avg=25074.98, stdev=16136.68 clat percentiles (usec): | 1.00th=[ 137], 5.00th=[ 243], 10.00th=[ 7635], 20.00th=[ 13304], | 30.00th=[ 16712], 40.00th=[ 19530], 50.00th=[ 22414], 60.00th=[ 26608], | 70.00th=[ 30802], 80.00th=[ 35390], 90.00th=[ 43779], 95.00th=[ 52167], | 99.00th=[ 84411], 99.50th=[ 96994], 99.90th=[110625], 99.95th=[110625], | 99.99th=[110625] bw ( KiB/s): min= 127, max= 510, per=26.26%, avg=337.46, stdev=81.80, samples=35 iops : min= 7, max= 31, avg=20.46, stdev= 5.11, samples=35 write: IOPS=21, BW=351KiB/s (359kB/s)(6256KiB/17831msec); 0 zone resets clat (usec): min=1263, max=121456, avg=21367.21, stdev=19361.96 lat (usec): min=1265, max=121458, avg=21368.97, stdev=19361.96 clat percentiles (usec): | 1.00th=[ 1401], 5.00th=[ 2114], 10.00th=[ 2737], 20.00th=[ 4817], | 30.00th=[ 7767], 40.00th=[ 12125], 50.00th=[ 16450], 60.00th=[ 20841], | 70.00th=[ 26084], 80.00th=[ 34866], 90.00th=[ 46924], 95.00th=[ 58459], | 99.00th=[ 95945], 99.50th=[112722], 99.90th=[121111], 99.95th=[121111], | 99.99th=[121111] bw ( KiB/s): min= 191, max= 540, per=26.03%, avg=351.97, stdev=83.41, samples=35 iops : min= 11, max= 33, avg=21.37, stdev= 5.38, samples=35 lat (usec) : 100=0.13%, 250=2.47%, 500=1.69% lat (msec) : 2=2.47%, 4=5.08%, 10=11.46%, 20=26.69%, 50=42.97% lat (msec) : 100=6.51%, 250=0.52% cpu : usr=0.09%, sys=12.28%, ctx=2058, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=1285KiB/s (1316kB/s), 318KiB/s-338KiB/s (325kB/s-346kB/s), io=23.4MiB (24.5MB), run=17831-18637msec WRITE: bw=1352KiB/s (1385kB/s), 324KiB/s-362KiB/s (331kB/s-370kB/s), io=24.6MiB (25.8MB), run=17831-18637msec rand-rw: (groupid=0, jobs=1): err= 0: pid=182996: Fri Jan 30 02:48:34 2026 read: IOPS=15, BW=253KiB/s (260kB/s)(5920KiB/23358msec) clat (msec): min=4, max=145, avg=24.30, stdev=20.61 lat (msec): min=4, max=145, avg=24.30, stdev=20.61 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 8], 10.00th=[ 9], 20.00th=[ 11], | 30.00th=[ 13], 40.00th=[ 15], 50.00th=[ 17], 60.00th=[ 21], | 70.00th=[ 26], 80.00th=[ 34], 90.00th=[ 53], 95.00th=[ 66], | 99.00th=[ 116], 99.50th=[ 136], 99.90th=[ 146], 99.95th=[ 146], | 99.99th=[ 146] bw ( KiB/s): min= 63, max= 701, per=24.64%, avg=251.13, stdev=142.37, samples=46 iops : min= 3, max= 43, avg=15.07, stdev= 8.92, samples=46 write: IOPS=17, BW=273KiB/s (279kB/s)(6368KiB/23358msec); 0 zone resets clat (msec): min=7, max=138, avg=35.87, stdev=23.29 lat (msec): min=7, max=138, avg=35.87, stdev=23.29 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 24], 50.00th=[ 30], 60.00th=[ 35], | 70.00th=[ 42], 80.00th=[ 52], 90.00th=[ 70], 95.00th=[ 82], | 99.00th=[ 125], 99.50th=[ 136], 99.90th=[ 138], 99.95th=[ 138], | 99.99th=[ 138] bw ( KiB/s): min= 95, max= 672, per=25.31%, avg=271.33, stdev=135.53, samples=46 iops : min= 5, max= 42, avg=16.33, stdev= 8.54, samples=46 lat (msec) : 10=10.16%, 20=33.85%, 50=38.41%, 100=15.76%, 250=1.82% cpu : usr=0.06%, sys=4.14%, ctx=1221, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=182997: Fri Jan 30 02:48:34 2026 read: IOPS=15, BW=244KiB/s (250kB/s)(5744KiB/23505msec) clat (msec): min=4, max=116, avg=24.66, stdev=20.16 lat (msec): min=4, max=116, avg=24.66, stdev=20.16 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 8], 10.00th=[ 9], 20.00th=[ 11], | 30.00th=[ 13], 40.00th=[ 16], 50.00th=[ 18], 60.00th=[ 21], | 70.00th=[ 27], 80.00th=[ 34], 90.00th=[ 56], 95.00th=[ 71], | 99.00th=[ 105], 99.50th=[ 116], 99.90th=[ 117], 99.95th=[ 117], | 99.99th=[ 117] bw ( KiB/s): min= 93, max= 606, per=23.69%, avg=241.37, stdev=130.23, samples=46 iops : min= 5, max= 37, avg=14.46, stdev= 8.13, samples=46 write: IOPS=17, BW=278KiB/s (285kB/s)(6544KiB/23505msec); 0 zone resets clat (msec): min=7, max=139, avg=35.59, stdev=23.28 lat (msec): min=7, max=139, avg=35.59, stdev=23.28 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 13], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 21], 40.00th=[ 23], 50.00th=[ 28], 60.00th=[ 34], | 70.00th=[ 43], 80.00th=[ 53], 90.00th=[ 71], 95.00th=[ 83], | 99.00th=[ 111], 99.50th=[ 118], 99.90th=[ 140], 99.95th=[ 140], | 99.99th=[ 140] bw ( KiB/s): min= 95, max= 736, per=25.48%, avg=273.11, stdev=143.60, samples=46 iops : min= 5, max= 46, avg=16.46, stdev= 9.09, samples=46 lat (msec) : 10=8.46%, 20=34.51%, 50=40.10%, 100=15.49%, 250=1.43% cpu : usr=0.12%, sys=4.14%, ctx=1248, 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=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=182998: Fri Jan 30 02:48:34 2026 read: IOPS=16, BW=268KiB/s (275kB/s)(6256KiB/23314msec) clat (msec): min=5, max=147, avg=24.97, stdev=20.57 lat (msec): min=5, max=147, avg=24.97, stdev=20.57 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 8], 10.00th=[ 9], 20.00th=[ 11], | 30.00th=[ 14], 40.00th=[ 16], 50.00th=[ 18], 60.00th=[ 21], | 70.00th=[ 26], 80.00th=[ 37], 90.00th=[ 55], 95.00th=[ 65], | 99.00th=[ 99], 99.50th=[ 144], 99.90th=[ 148], 99.95th=[ 148], | 99.99th=[ 148] bw ( KiB/s): min= 64, max= 768, per=26.35%, avg=268.50, stdev=151.90, samples=46 iops : min= 4, max= 48, avg=16.17, stdev= 9.56, samples=46 write: IOPS=16, BW=259KiB/s (265kB/s)(6032KiB/23314msec); 0 zone resets clat (msec): min=6, max=138, avg=35.83, stdev=22.75 lat (msec): min=6, max=138, avg=35.83, stdev=22.75 clat percentiles (msec): | 1.00th=[ 12], 5.00th=[ 14], 10.00th=[ 16], 20.00th=[ 19], | 30.00th=[ 22], 40.00th=[ 26], 50.00th=[ 28], 60.00th=[ 34], | 70.00th=[ 43], 80.00th=[ 51], 90.00th=[ 65], 95.00th=[ 81], | 99.00th=[ 132], 99.50th=[ 138], 99.90th=[ 140], 99.95th=[ 140], | 99.99th=[ 140] bw ( KiB/s): min= 63, max= 573, per=23.86%, avg=255.83, stdev=122.48, samples=46 iops : min= 3, max= 35, avg=15.37, stdev= 7.65, samples=46 lat (msec) : 10=8.07%, 20=33.85%, 50=41.80%, 100=14.71%, 250=1.56% cpu : usr=0.05%, sys=4.32%, ctx=1238, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=182999: Fri Jan 30 02:48:34 2026 read: IOPS=16, BW=258KiB/s (264kB/s)(6032KiB/23412msec) clat (msec): min=4, max=152, avg=24.58, stdev=21.12 lat (msec): min=4, max=152, avg=24.59, stdev=21.11 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 8], 10.00th=[ 8], 20.00th=[ 10], | 30.00th=[ 13], 40.00th=[ 15], 50.00th=[ 18], 60.00th=[ 22], | 70.00th=[ 27], 80.00th=[ 36], 90.00th=[ 52], 95.00th=[ 73], | 99.00th=[ 110], 99.50th=[ 117], 99.90th=[ 153], 99.95th=[ 153], | 99.99th=[ 153] bw ( KiB/s): min= 95, max= 800, per=25.00%, avg=254.78, stdev=142.44, samples=46 iops : min= 5, max= 50, avg=15.30, stdev= 8.96, samples=46 write: IOPS=16, BW=267KiB/s (274kB/s)(6256KiB/23412msec); 0 zone resets clat (msec): min=7, max=143, avg=35.96, stdev=22.35 lat (msec): min=7, max=143, avg=35.96, stdev=22.35 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 14], 10.00th=[ 16], 20.00th=[ 18], | 30.00th=[ 22], 40.00th=[ 26], 50.00th=[ 29], 60.00th=[ 35], | 70.00th=[ 42], 80.00th=[ 53], 90.00th=[ 70], 95.00th=[ 78], | 99.00th=[ 112], 99.50th=[ 136], 99.90th=[ 144], 99.95th=[ 144], | 99.99th=[ 144] bw ( KiB/s): min= 95, max= 608, per=24.78%, avg=265.63, stdev=128.06, samples=46 iops : min= 5, max= 38, avg=15.98, stdev= 8.03, samples=46 lat (msec) : 10=10.81%, 20=30.60%, 50=41.54%, 100=15.63%, 250=1.43% cpu : usr=0.07%, sys=4.36%, ctx=1272, 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=1019KiB/s (1043kB/s), 244KiB/s-268KiB/s (250kB/s-275kB/s), io=23.4MiB (24.5MB), run=23314-23505msec WRITE: bw=1072KiB/s (1098kB/s), 259KiB/s-278KiB/s (265kB/s-285kB/s), io=24.6MiB (25.8MB), run=23314-23505msec 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=183017: Fri Jan 30 02:48:43 2026 read: IOPS=3, BW=3448KiB/s (3531kB/s)(7168KiB/2079msec) clat (usec): min=1115, max=218184, avg=137806.14, stdev=72096.45 lat (usec): min=1117, max=218185, avg=137807.72, stdev=72096.47 clat percentiles (usec): | 1.00th=[ 1123], 5.00th=[ 1123], 10.00th=[ 1123], 20.00th=[100140], | 30.00th=[119014], 40.00th=[119014], 50.00th=[173016], 60.00th=[175113], | 70.00th=[175113], 80.00th=[179307], 90.00th=[219153], 95.00th=[219153], | 99.00th=[219153], 99.50th=[219153], 99.90th=[219153], 99.95th=[219153], | 99.99th=[219153] bw ( KiB/s): min= 2031, max= 4007, per=54.92%, avg=3187.33, stdev=1030.12, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=2, BW=2463KiB/s (2522kB/s)(5120KiB/2079msec); 0 zone resets clat (msec): min=151, max=327, avg=202.77, stdev=71.73 lat (msec): min=151, max=327, avg=202.86, stdev=71.73 clat percentiles (msec): | 1.00th=[ 153], 5.00th=[ 153], 10.00th=[ 153], 20.00th=[ 153], | 30.00th=[ 161], 40.00th=[ 161], 50.00th=[ 178], 60.00th=[ 178], | 70.00th=[ 199], 80.00th=[ 199], 90.00th=[ 330], 95.00th=[ 330], | 99.00th=[ 330], 99.50th=[ 330], 99.90th=[ 330], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 2003, max= 4063, per=37.32%, avg=3033.00, stdev=1456.64, samples=2 iops : min= 1, max= 3, avg= 2.00, stdev= 1.41, samples=2 lat (msec) : 2=8.33%, 250=83.33%, 500=8.33% cpu : usr=0.10%, sys=42.54%, ctx=542, 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=183018: Fri Jan 30 02:48:43 2026 read: IOPS=0, BW=587KiB/s (601kB/s)(2048KiB/3491msec) clat (usec): min=949, max=165029, avg=82989.23, stdev=116022.04 lat (usec): min=950, max=165031, avg=82991.04, stdev=116023.03 clat percentiles (usec): | 1.00th=[ 947], 5.00th=[ 947], 10.00th=[ 947], 20.00th=[ 947], | 30.00th=[ 947], 40.00th=[ 947], 50.00th=[ 947], 60.00th=[164627], | 70.00th=[164627], 80.00th=[164627], 90.00th=[164627], 95.00th=[164627], | 99.00th=[164627], 99.50th=[164627], 99.90th=[164627], 99.95th=[164627], | 99.99th=[164627] bw ( KiB/s): min= 1780, max= 2031, per=32.83%, avg=1905.50, stdev=177.48, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2933KiB/s (3004kB/s)(10.0MiB/3491msec); 0 zone resets clat (msec): min=97, max=1016, avg=319.75, stdev=293.72 lat (msec): min=97, max=1017, avg=319.83, stdev=293.71 clat percentiles (msec): | 1.00th=[ 99], 5.00th=[ 99], 10.00th=[ 99], 20.00th=[ 115], | 30.00th=[ 167], 40.00th=[ 178], 50.00th=[ 180], 60.00th=[ 182], | 70.00th=[ 271], 80.00th=[ 334], 90.00th=[ 659], 95.00th=[ 1020], | 99.00th=[ 1020], 99.50th=[ 1020], 99.90th=[ 1020], 99.95th=[ 1020], | 99.99th=[ 1020] bw ( KiB/s): min= 1780, max= 4096, per=34.32%, avg=2789.00, stdev=1157.47, samples=5 iops : min= 1, max= 4, avg= 2.00, stdev= 1.41, samples=5 lat (usec) : 1000=8.33% lat (msec) : 100=8.33%, 250=50.00%, 500=16.67%, 750=8.33%, 2000=8.33% cpu : usr=0.03%, sys=30.49%, ctx=186, 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=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=183019: Fri Jan 30 02:48:43 2026 read: IOPS=1, BW=1741KiB/s (1783kB/s)(6144KiB/3528msec) clat (msec): min=112, max=254, avg=191.11, stdev=57.92 lat (msec): min=112, max=254, avg=191.11, stdev=57.92 clat percentiles (msec): | 1.00th=[ 112], 5.00th=[ 112], 10.00th=[ 112], 20.00th=[ 146], | 30.00th=[ 146], 40.00th=[ 171], 50.00th=[ 171], 60.00th=[ 218], | 70.00th=[ 249], 80.00th=[ 249], 90.00th=[ 255], 95.00th=[ 255], | 99.00th=[ 255], 99.50th=[ 255], 99.90th=[ 255], 99.95th=[ 255], | 99.99th=[ 255] bw ( KiB/s): min= 2031, max= 4063, per=46.76%, avg=2714.00, stdev=1168.30, samples=3 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=3 write: IOPS=1, BW=1741KiB/s (1783kB/s)(6144KiB/3528msec); 0 zone resets clat (msec): min=195, max=664, avg=384.71, stdev=207.70 lat (msec): min=195, max=664, avg=384.79, stdev=207.72 clat percentiles (msec): | 1.00th=[ 197], 5.00th=[ 197], 10.00th=[ 197], 20.00th=[ 199], | 30.00th=[ 199], 40.00th=[ 249], 50.00th=[ 249], 60.00th=[ 397], | 70.00th=[ 609], 80.00th=[ 609], 90.00th=[ 667], 95.00th=[ 667], | 99.00th=[ 667], 99.50th=[ 667], 99.90th=[ 667], 99.95th=[ 667], | 99.99th=[ 667] bw ( KiB/s): min= 1768, max= 2048, per=24.32%, avg=1976.20, stdev=117.50, samples=5 iops : min= 1, max= 2, avg= 1.20, stdev= 0.45, samples=5 lat (msec) : 250=66.67%, 500=16.67%, 750=16.67% cpu : usr=0.03%, sys=31.13%, ctx=626, 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=183020: Fri Jan 30 02:48:43 2026 read: IOPS=1, BW=1934KiB/s (1981kB/s)(5120KiB/2647msec) clat (usec): min=1243, max=253888, avg=173393.90, stdev=103825.84 lat (usec): min=1244, max=253889, avg=173395.02, stdev=103825.79 clat percentiles (usec): | 1.00th=[ 1237], 5.00th=[ 1237], 10.00th=[ 1237], 20.00th=[ 1237], | 30.00th=[152044], 40.00th=[152044], 50.00th=[225444], 60.00th=[225444], | 70.00th=[235930], 80.00th=[235930], 90.00th=[254804], 95.00th=[254804], | 99.00th=[254804], 99.50th=[254804], 99.90th=[254804], 99.95th=[254804], | 99.99th=[254804] bw ( KiB/s): min= 2031, max= 6095, per=70.00%, avg=4063.00, stdev=2873.68, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=2, BW=2708KiB/s (2773kB/s)(7168KiB/2647msec); 0 zone resets clat (msec): min=132, max=421, avg=247.94, stdev=111.00 lat (msec): min=132, max=421, avg=248.02, stdev=110.99 clat percentiles (msec): | 1.00th=[ 133], 5.00th=[ 133], 10.00th=[ 133], 20.00th=[ 182], | 30.00th=[ 190], 40.00th=[ 190], 50.00th=[ 199], 60.00th=[ 224], | 70.00th=[ 224], 80.00th=[ 388], 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= 1738, max= 6095, per=42.67%, avg=3467.75, stdev=2020.69, samples=4 iops : min= 1, max= 5, avg= 2.50, stdev= 1.91, samples=4 lat (msec) : 2=8.33%, 250=66.67%, 500=25.00% cpu : usr=0.00%, sys=34.16%, ctx=582, 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=5805KiB/s (5944kB/s), 587KiB/s-3448KiB/s (601kB/s-3531kB/s), io=20.0MiB (20.0MB), run=2079-3528msec WRITE: bw=8127KiB/s (8322kB/s), 1741KiB/s-2933KiB/s (1783kB/s-3004kB/s), io=28.0MiB (29.4MB), run=2079-3528msec rand-rw: (groupid=0, jobs=1): err= 0: pid=183012: Fri Jan 30 02:48:43 2026 read: IOPS=2, BW=2232KiB/s (2285kB/s)(7168KiB/3212msec) clat (msec): min=68, max=555, avg=236.12, stdev=170.95 lat (msec): min=68, max=555, avg=236.12, stdev=170.95 clat percentiles (msec): | 1.00th=[ 69], 5.00th=[ 69], 10.00th=[ 69], 20.00th=[ 92], | 30.00th=[ 146], 40.00th=[ 146], 50.00th=[ 211], 60.00th=[ 218], | 70.00th=[ 218], 80.00th=[ 363], 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= 1805, max= 4096, per=49.47%, avg=2923.50, stdev=1166.79, samples=4 iops : min= 1, max= 4, avg= 2.25, stdev= 1.50, samples=4 write: IOPS=1, BW=1594KiB/s (1632kB/s)(5120KiB/3212msec); 0 zone resets clat (msec): min=142, max=501, avg=274.59, stdev=149.85 lat (msec): min=142, max=501, avg=274.67, stdev=149.86 clat percentiles (msec): | 1.00th=[ 142], 5.00th=[ 142], 10.00th=[ 142], 20.00th=[ 142], | 30.00th=[ 165], 40.00th=[ 165], 50.00th=[ 215], 60.00th=[ 215], | 70.00th=[ 351], 80.00th=[ 351], 90.00th=[ 502], 95.00th=[ 502], | 99.00th=[ 502], 99.50th=[ 502], 99.90th=[ 502], 99.95th=[ 502], | 99.99th=[ 502] bw ( KiB/s): min= 1875, max= 4096, per=30.31%, avg=2508.25, stdev=1061.10, samples=4 iops : min= 1, max= 4, avg= 1.75, stdev= 1.50, samples=4 lat (msec) : 100=16.67%, 250=50.00%, 500=16.67%, 750=16.67% cpu : usr=0.03%, sys=11.77%, ctx=156, 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=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=183013: Fri Jan 30 02:48:43 2026 read: IOPS=0, BW=591KiB/s (605kB/s)(2048KiB/3465msec) clat (usec): min=59406, max=77518, avg=68462.68, stdev=12806.72 lat (usec): min=59409, max=77518, avg=68464.21, stdev=12805.38 clat percentiles (usec): | 1.00th=[59507], 5.00th=[59507], 10.00th=[59507], 20.00th=[59507], | 30.00th=[59507], 40.00th=[59507], 50.00th=[59507], 60.00th=[77071], | 70.00th=[77071], 80.00th=[77071], 90.00th=[77071], 95.00th=[77071], | 99.00th=[77071], 99.50th=[77071], 99.90th=[77071], 99.95th=[77071], | 99.99th=[77071] bw ( KiB/s): min= 1771, max= 1875, per=30.85%, avg=1823.00, stdev=73.54, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2955KiB/s (3026kB/s)(10.0MiB/3465msec); 0 zone resets clat (msec): min=81, max=579, avg=331.00, stdev=181.96 lat (msec): min=81, max=579, avg=331.10, stdev=181.98 clat percentiles (msec): | 1.00th=[ 82], 5.00th=[ 82], 10.00th=[ 82], 20.00th=[ 109], | 30.00th=[ 161], 40.00th=[ 220], 50.00th=[ 296], 60.00th=[ 418], | 70.00th=[ 435], 80.00th=[ 481], 90.00th=[ 535], 95.00th=[ 584], | 99.00th=[ 584], 99.50th=[ 584], 99.90th=[ 584], 99.95th=[ 584], | 99.99th=[ 584] bw ( KiB/s): min= 1771, max= 4096, per=32.02%, avg=2649.33, stdev=1121.58, samples=6 iops : min= 1, max= 4, avg= 2.00, stdev= 1.26, samples=6 lat (msec) : 100=25.00%, 250=25.00%, 500=33.33%, 750=16.67% cpu : usr=0.00%, sys=12.62%, ctx=149, 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=183014: Fri Jan 30 02:48:43 2026 read: IOPS=1, BW=1827KiB/s (1871kB/s)(6144KiB/3363msec) clat (msec): min=58, max=361, avg=197.50, stdev=114.82 lat (msec): min=58, max=361, avg=197.50, stdev=114.82 clat percentiles (msec): | 1.00th=[ 59], 5.00th=[ 59], 10.00th=[ 59], 20.00th=[ 81], | 30.00th=[ 81], 40.00th=[ 199], 50.00th=[ 199], 60.00th=[ 215], | 70.00th=[ 271], 80.00th=[ 271], 90.00th=[ 363], 95.00th=[ 363], | 99.00th=[ 363], 99.50th=[ 363], 99.90th=[ 363], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 1875, max= 4087, per=42.42%, avg=2507.25, stdev=1055.88, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 write: IOPS=1, BW=1827KiB/s (1871kB/s)(6144KiB/3363msec); 0 zone resets clat (msec): min=86, max=659, avg=350.01, stdev=197.85 lat (msec): min=87, max=659, avg=350.14, stdev=197.86 clat percentiles (msec): | 1.00th=[ 87], 5.00th=[ 87], 10.00th=[ 87], 20.00th=[ 247], | 30.00th=[ 247], 40.00th=[ 259], 50.00th=[ 259], 60.00th=[ 409], | 70.00th=[ 443], 80.00th=[ 443], 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= 1796, max= 2048, per=24.06%, avg=1990.80, stdev=109.56, samples=5 iops : min= 1, max= 2, avg= 1.40, stdev= 0.55, samples=5 lat (msec) : 100=25.00%, 250=25.00%, 500=41.67%, 750=8.33% cpu : usr=0.00%, sys=11.69%, ctx=137, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=183015: Fri Jan 30 02:48:43 2026 read: IOPS=2, BW=2143KiB/s (2195kB/s)(5120KiB/2389msec) clat (msec): min=68, max=369, avg=166.74, stdev=130.02 lat (msec): min=68, max=369, avg=166.74, stdev=130.02 clat percentiles (msec): | 1.00th=[ 69], 5.00th=[ 69], 10.00th=[ 69], 20.00th=[ 69], | 30.00th=[ 71], 40.00th=[ 71], 50.00th=[ 101], 60.00th=[ 101], | 70.00th=[ 226], 80.00th=[ 226], 90.00th=[ 372], 95.00th=[ 372], | 99.00th=[ 372], 99.50th=[ 372], 99.90th=[ 372], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 1875, max= 6059, per=67.12%, avg=3967.00, stdev=2958.53, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=2, BW=3000KiB/s (3072kB/s)(7168KiB/2389msec); 0 zone resets clat (msec): min=65, max=416, avg=213.35, stdev=142.04 lat (msec): min=65, max=417, avg=213.43, stdev=142.07 clat percentiles (msec): | 1.00th=[ 66], 5.00th=[ 66], 10.00th=[ 66], 20.00th=[ 70], | 30.00th=[ 95], 40.00th=[ 95], 50.00th=[ 209], 60.00th=[ 300], | 70.00th=[ 300], 80.00th=[ 338], 90.00th=[ 418], 95.00th=[ 418], | 99.00th=[ 418], 99.50th=[ 418], 99.90th=[ 418], 99.95th=[ 418], | 99.99th=[ 418] bw ( KiB/s): min= 1875, max= 4096, per=38.58%, avg=3192.00, stdev=1166.68, samples=3 iops : min= 1, max= 4, avg= 2.67, stdev= 1.53, samples=3 lat (msec) : 100=41.67%, 250=25.00%, 500=33.33% cpu : usr=0.00%, sys=12.60%, ctx=127, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=5911KiB/s (6052kB/s), 591KiB/s-2232KiB/s (605kB/s-2285kB/s), io=20.0MiB (20.0MB), run=2389-3465msec WRITE: bw=8275KiB/s (8473kB/s), 1594KiB/s-3000KiB/s (1632kB/s-3072kB/s), io=28.0MiB (29.4MB), run=2389-3465msec 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=183027: Fri Jan 30 02:48:51 2026 read: IOPS=1, BW=5430KiB/s (5560kB/s)(12.0MiB/2263msec) clat (msec): min=356, max=1171, avg=719.33, stdev=414.79 lat (msec): min=356, max=1171, avg=719.33, stdev=414.79 clat percentiles (msec): | 1.00th=[ 359], 5.00th=[ 359], 10.00th=[ 359], 20.00th=[ 359], | 30.00th=[ 359], 40.00th=[ 634], 50.00th=[ 634], 60.00th=[ 634], | 70.00th=[ 1167], 80.00th=[ 1167], 90.00th=[ 1167], 95.00th=[ 1167], | 99.00th=[ 1167], 99.50th=[ 1167], 99.90th=[ 1167], 99.95th=[ 1167], | 99.99th=[ 1167] bw ( KiB/s): min= 7846, max= 8175, per=100.00%, avg=8010.50, stdev=232.64, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.00%, sys=9.28%, ctx=92, 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=183028: Fri Jan 30 02:48:51 2026 read: IOPS=0, BW=2829KiB/s (2897kB/s)(4096KiB/1448msec) clat (nsec): min=292974k, max=292974k, avg=292973634.00, stdev= 0.00 lat (nsec): min=292976k, max=292976k, avg=292975803.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 292], 5.00th=[ 292], 10.00th=[ 292], 20.00th=[ 292], | 30.00th=[ 292], 40.00th=[ 292], 50.00th=[ 292], 60.00th=[ 292], | 70.00th=[ 292], 80.00th=[ 292], 90.00th=[ 292], 95.00th=[ 292], | 99.00th=[ 292], 99.50th=[ 292], 99.90th=[ 292], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 6781, max= 6781, per=93.67%, avg=6781.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=1, BW=5657KiB/s (5793kB/s)(8192KiB/1448msec); 0 zone resets clat (msec): min=363, max=693, avg=528.49, stdev=232.99 lat (msec): min=364, max=693, avg=528.82, stdev=233.00 clat percentiles (msec): | 1.00th=[ 363], 5.00th=[ 363], 10.00th=[ 363], 20.00th=[ 363], | 30.00th=[ 363], 40.00th=[ 363], 50.00th=[ 363], 60.00th=[ 693], | 70.00th=[ 693], 80.00th=[ 693], 90.00th=[ 693], 95.00th=[ 693], | 99.00th=[ 693], 99.50th=[ 693], 99.90th=[ 693], 99.95th=[ 693], | 99.99th=[ 693] bw ( KiB/s): min= 8192, max= 8192, per=51.55%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 500=66.67%, 750=33.33% cpu : usr=0.00%, sys=13.75%, ctx=69, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=183029: Fri Jan 30 02:48:51 2026 write: IOPS=1, BW=5959KiB/s (6102kB/s)(12.0MiB/2062msec); 0 zone resets clat (msec): min=351, max=941, avg=631.40, stdev=296.13 lat (msec): min=351, max=941, avg=631.75, stdev=296.09 clat percentiles (msec): | 1.00th=[ 351], 5.00th=[ 351], 10.00th=[ 351], 20.00th=[ 351], | 30.00th=[ 351], 40.00th=[ 600], 50.00th=[ 600], 60.00th=[ 600], | 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= 8192, max= 8192, per=51.55%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 750=33.33%, 1000=33.33% cpu : usr=0.15%, sys=13.73%, ctx=85, 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=183030: Fri Jan 30 02:48:51 2026 write: IOPS=1, BW=6169KiB/s (6317kB/s)(12.0MiB/1992msec); 0 zone resets clat (msec): min=193, max=1485, avg=631.30, stdev=740.22 lat (msec): min=193, max=1486, avg=631.67, stdev=740.27 clat percentiles (msec): | 1.00th=[ 194], 5.00th=[ 194], 10.00th=[ 194], 20.00th=[ 194], | 30.00th=[ 194], 40.00th=[ 215], 50.00th=[ 215], 60.00th=[ 215], | 70.00th=[ 1485], 80.00th=[ 1485], 90.00th=[ 1485], 95.00th=[ 1485], | 99.00th=[ 1485], 99.50th=[ 1485], 99.90th=[ 1485], 99.95th=[ 1485], | 99.99th=[ 1485] bw ( KiB/s): min=13585, max=13585, per=85.49%, avg=13585.00, stdev= 0.00, samples=1 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=1 lat (msec) : 250=66.67%, 2000=33.33% cpu : usr=0.00%, sys=9.69%, ctx=63, 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=7240KiB/s (7414kB/s), 2829KiB/s-5430KiB/s (2897kB/s-5560kB/s), io=16.0MiB (16.8MB), run=1448-2263msec WRITE: bw=15.5MiB/s (16.3MB/s), 5657KiB/s-6169KiB/s (5793kB/s-6317kB/s), io=32.0MiB (33.6MB), run=1448-2062msec rand-rw: (groupid=0, jobs=1): err= 0: pid=183031: Fri Jan 30 02:48:51 2026 read: IOPS=1, BW=7341KiB/s (7517kB/s)(12.0MiB/1674msec) clat (msec): min=479, max=600, avg=547.57, stdev=61.94 lat (msec): min=479, max=600, avg=547.58, stdev=61.94 clat percentiles (msec): | 1.00th=[ 481], 5.00th=[ 481], 10.00th=[ 481], 20.00th=[ 481], | 30.00th=[ 481], 40.00th=[ 567], 50.00th=[ 567], 60.00th=[ 567], | 70.00th=[ 600], 80.00th=[ 600], 90.00th=[ 600], 95.00th=[ 600], | 99.00th=[ 600], 99.50th=[ 600], 99.90th=[ 600], 99.95th=[ 600], | 99.99th=[ 600] bw ( KiB/s): min= 6803, max= 8031, per=92.03%, avg=7417.00, stdev=868.33, 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=0.00%, sys=27.50%, ctx=864, 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=183032: Fri Jan 30 02:48:51 2026 read: IOPS=0, BW=2015KiB/s (2063kB/s)(4096KiB/2033msec) clat (nsec): min=442171k, max=442171k, avg=442171209.00, stdev= 0.00 lat (nsec): min=442174k, max=442174k, avg=442173934.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 443], 5.00th=[ 443], 10.00th=[ 443], 20.00th=[ 443], | 30.00th=[ 443], 40.00th=[ 443], 50.00th=[ 443], 60.00th=[ 443], | 70.00th=[ 443], 80.00th=[ 443], 90.00th=[ 443], 95.00th=[ 443], | 99.00th=[ 443], 99.50th=[ 443], 99.90th=[ 443], 99.95th=[ 443], | 99.99th=[ 443] bw ( KiB/s): min= 6860, max= 6860, per=85.12%, avg=6860.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=4030KiB/s (4126kB/s)(8192KiB/2033msec); 0 zone resets clat (msec): min=657, max=795, avg=726.89, stdev=97.47 lat (msec): min=658, max=796, avg=727.25, stdev=97.45 clat percentiles (msec): | 1.00th=[ 659], 5.00th=[ 659], 10.00th=[ 659], 20.00th=[ 659], | 30.00th=[ 659], 40.00th=[ 659], 50.00th=[ 659], 60.00th=[ 793], | 70.00th=[ 793], 80.00th=[ 793], 90.00th=[ 793], 95.00th=[ 793], | 99.00th=[ 793], 99.50th=[ 793], 99.90th=[ 793], 99.95th=[ 793], | 99.99th=[ 793] bw ( KiB/s): min= 8031, max= 8031, per=55.66%, avg=8031.00, 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%, 1000=33.33% cpu : usr=0.00%, sys=12.60%, ctx=106, 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=183033: Fri Jan 30 02:48:51 2026 write: IOPS=1, BW=5411KiB/s (5541kB/s)(12.0MiB/2271msec); 0 zone resets clat (msec): min=118, max=1475, avg=738.32, stdev=686.40 lat (msec): min=118, max=1476, avg=738.63, stdev=686.52 clat percentiles (msec): | 1.00th=[ 118], 5.00th=[ 118], 10.00th=[ 118], 20.00th=[ 118], | 30.00th=[ 118], 40.00th=[ 617], 50.00th=[ 617], 60.00th=[ 617], | 70.00th=[ 1469], 80.00th=[ 1469], 90.00th=[ 1469], 95.00th=[ 1469], | 99.00th=[ 1469], 99.50th=[ 1469], 99.90th=[ 1469], 99.95th=[ 1469], | 99.99th=[ 1469] bw ( KiB/s): min= 8031, max= 8031, per=55.66%, avg=8031.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.00%, sys=6.52%, ctx=48, 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=183034: Fri Jan 30 02:48:51 2026 write: IOPS=1, BW=5783KiB/s (5921kB/s)(12.0MiB/2125msec); 0 zone resets clat (msec): min=269, max=1159, avg=670.07, stdev=451.52 lat (msec): min=269, max=1162, avg=671.50, stdev=453.16 clat percentiles (msec): | 1.00th=[ 271], 5.00th=[ 271], 10.00th=[ 271], 20.00th=[ 271], | 30.00th=[ 271], 40.00th=[ 584], 50.00th=[ 584], 60.00th=[ 584], | 70.00th=[ 1167], 80.00th=[ 1167], 90.00th=[ 1167], 95.00th=[ 1167], | 99.00th=[ 1167], 99.50th=[ 1167], 99.90th=[ 1167], 99.95th=[ 1167], | 99.99th=[ 1167] bw ( KiB/s): min= 6977, max= 8192, per=52.57%, avg=7584.50, stdev=859.13, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 500=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.00%, sys=7.53%, ctx=67, 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=8059KiB/s (8252kB/s), 2015KiB/s-7341KiB/s (2063kB/s-7517kB/s), io=16.0MiB (16.8MB), run=1674-2033msec WRITE: bw=14.1MiB/s (14.8MB/s), 4030KiB/s-5783KiB/s (4126kB/s-5921kB/s), io=32.0MiB (33.6MB), run=2033-2271msec