== sanity test 398b: DIO and buffer IO race ============== 08:45:57 (1787834757) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 5.23641 s, 9.6 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=144671: Thu Aug 27 08:48:11 2026 read: IOPS=13, BW=52.1KiB/s (53.3kB/s)(5992KiB/115113msec) clat (usec): min=33, max=478270, avg=37949.77, stdev=31894.99 lat (usec): min=33, max=478270, avg=37951.34, stdev=31895.07 clat percentiles (usec): | 1.00th=[ 50], 5.00th=[ 61], 10.00th=[ 7046], 20.00th=[ 17171], | 30.00th=[ 21890], 40.00th=[ 26608], 50.00th=[ 31851], 60.00th=[ 38011], | 70.00th=[ 45351], 80.00th=[ 56361], 90.00th=[ 70779], 95.00th=[ 90702], | 99.00th=[133694], 99.50th=[170918], 99.90th=[408945], 99.95th=[480248], | 99.99th=[480248] bw ( KiB/s): min= 7, max= 117, per=25.11%, avg=51.72, stdev=21.46, samples=226 iops : min= 1, max= 29, avg=12.26, stdev= 5.38, samples=226 write: IOPS=13, BW=54.7KiB/s (56.0kB/s)(6296KiB/115113msec); 0 zone resets clat (usec): min=888, max=953688, avg=36707.88, stdev=44395.89 lat (usec): min=889, max=953690, avg=36709.42, stdev=44395.78 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1172], 10.00th=[ 1418], 20.00th=[ 3556], | 30.00th=[ 7111], 40.00th=[ 16712], 50.00th=[ 26870], 60.00th=[ 36963], | 70.00th=[ 48497], 80.00th=[ 62653], 90.00th=[ 86508], 95.00th=[106431], | 99.00th=[158335], 99.50th=[187696], 99.90th=[417334], 99.95th=[952108], | 99.99th=[952108] bw ( KiB/s): min= 15, max= 142, per=25.26%, avg=54.55, stdev=21.34, samples=225 iops : min= 3, max= 35, avg=12.96, stdev= 5.35, samples=225 lat (usec) : 50=0.59%, 100=3.52%, 250=0.33%, 500=0.07%, 750=0.07% lat (usec) : 1000=0.20% lat (msec) : 2=7.06%, 4=3.91%, 10=7.32%, 20=11.82%, 50=38.05% lat (msec) : 100=22.53%, 250=4.33%, 500=0.20%, 1000=0.03% cpu : usr=0.07%, sys=5.14%, ctx=6325, 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=144672: Thu Aug 27 08:48:11 2026 read: IOPS=12, BW=51.2KiB/s (52.4kB/s)(5940KiB/116091msec) clat (usec): min=29, max=866348, avg=37357.39, stdev=36652.18 lat (usec): min=29, max=866350, avg=37362.91, stdev=36650.74 clat percentiles (usec): | 1.00th=[ 51], 5.00th=[ 60], 10.00th=[ 1106], 20.00th=[ 17171], | 30.00th=[ 21890], 40.00th=[ 27132], 50.00th=[ 32113], 60.00th=[ 38011], | 70.00th=[ 44827], 80.00th=[ 53740], 90.00th=[ 68682], 95.00th=[ 85459], | 99.00th=[122160], 99.50th=[154141], 99.90th=[459277], 99.95th=[868221], | 99.99th=[868221] bw ( KiB/s): min= 7, max= 135, per=25.18%, avg=51.87, stdev=21.11, samples=223 iops : min= 1, max= 33, avg=12.28, stdev= 5.29, samples=223 write: IOPS=13, BW=54.7KiB/s (55.0kB/s)(6348KiB/116091msec); 0 zone resets clat (usec): min=816, max=320963, avg=37870.68, stdev=40206.03 lat (usec): min=817, max=320964, avg=37874.03, stdev=40204.36 clat percentiles (usec): | 1.00th=[ 1020], 5.00th=[ 1172], 10.00th=[ 1418], 20.00th=[ 3359], | 30.00th=[ 6915], 40.00th=[ 16909], 50.00th=[ 27132], 60.00th=[ 38011], | 70.00th=[ 49021], 80.00th=[ 64750], 90.00th=[ 91751], 95.00th=[115868], | 99.00th=[170918], 99.50th=[206570], 99.90th=[278922], 99.95th=[320865], | 99.99th=[320865] bw ( KiB/s): min= 7, max= 143, per=25.18%, avg=54.39, stdev=23.40, samples=227 iops : min= 1, max= 35, avg=12.92, stdev= 5.85, samples=227 lat (usec) : 50=0.39%, 100=4.10%, 250=0.16%, 500=0.07%, 750=0.07% lat (usec) : 1000=0.39% lat (msec) : 2=6.80%, 4=4.79%, 10=6.67%, 20=10.71%, 50=39.32% lat (msec) : 100=21.39%, 250=4.88%, 500=0.23%, 1000=0.03% cpu : usr=0.07%, sys=4.90%, ctx=6343, 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=144673: Thu Aug 27 08:48:11 2026 read: IOPS=13, BW=53.2KiB/s (54.5kB/s)(6028KiB/113224msec) clat (usec): min=27, max=811892, avg=37563.87, stdev=38072.16 lat (usec): min=27, max=811893, avg=37565.05, stdev=38072.15 clat percentiles (usec): | 1.00th=[ 48], 5.00th=[ 58], 10.00th=[ 99], 20.00th=[ 16188], | 30.00th=[ 20841], 40.00th=[ 25560], 50.00th=[ 30802], 60.00th=[ 37487], | 70.00th=[ 44303], 80.00th=[ 54789], 90.00th=[ 72877], 95.00th=[ 89654], | 99.00th=[135267], 99.50th=[185598], 99.90th=[467665], 99.95th=[809501], | 99.99th=[809501] bw ( KiB/s): min= 7, max= 125, per=25.62%, avg=52.77, stdev=23.49, samples=222 iops : min= 1, max= 31, avg=12.52, stdev= 5.90, samples=222 write: IOPS=13, BW=55.3KiB/s (56.6kB/s)(6260KiB/113224msec); 0 zone resets clat (usec): min=713, max=374275, avg=35883.34, stdev=37485.88 lat (usec): min=714, max=374276, avg=35884.86, stdev=37485.85 clat percentiles (usec): | 1.00th=[ 1037], 5.00th=[ 1156], 10.00th=[ 1352], 20.00th=[ 3228], | 30.00th=[ 6587], 40.00th=[ 15401], 50.00th=[ 27132], 60.00th=[ 36439], | 70.00th=[ 48497], 80.00th=[ 62653], 90.00th=[ 85459], 95.00th=[107480], | 99.00th=[168821], 99.50th=[185598], 99.90th=[206570], 99.95th=[375391], | 99.99th=[375391] bw ( KiB/s): min= 7, max= 125, per=25.68%, avg=55.47, stdev=22.10, samples=219 iops : min= 1, max= 31, avg=13.20, stdev= 5.56, samples=219 lat (usec) : 50=0.78%, 100=4.17%, 250=0.26%, 500=0.07%, 750=0.07% lat (usec) : 1000=0.13% lat (msec) : 2=7.39%, 4=4.23%, 10=6.93%, 20=11.95%, 50=37.47% lat (msec) : 100=21.39%, 250=5.01%, 500=0.13%, 1000=0.03% cpu : usr=0.08%, sys=4.89%, ctx=6189, 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=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=144674: Thu Aug 27 08:48:11 2026 read: IOPS=13, BW=52.4KiB/s (53.7kB/s)(6052KiB/115464msec) clat (usec): min=32, max=254935, avg=36658.76, stdev=28775.33 lat (usec): min=33, max=254936, avg=36660.23, stdev=28775.17 clat percentiles (usec): | 1.00th=[ 46], 5.00th=[ 57], 10.00th=[ 95], 20.00th=[ 16712], | 30.00th=[ 21103], 40.00th=[ 25560], 50.00th=[ 30802], 60.00th=[ 36439], | 70.00th=[ 44303], 80.00th=[ 55313], 90.00th=[ 72877], 95.00th=[ 86508], | 99.00th=[135267], 99.50th=[173016], 99.90th=[242222], 99.95th=[254804], | 99.99th=[254804] bw ( KiB/s): min= 7, max= 119, per=25.51%, avg=52.54, stdev=21.45, samples=225 iops : min= 1, max= 29, avg=12.46, stdev= 5.38, samples=225 write: IOPS=13, BW=54.0KiB/s (55.3kB/s)(6236KiB/115464msec); 0 zone resets clat (usec): min=729, max=815393, avg=38191.33, stdev=44970.38 lat (usec): min=730, max=815395, avg=38193.86, stdev=44970.37 clat percentiles (usec): | 1.00th=[ 1020], 5.00th=[ 1172], 10.00th=[ 1385], 20.00th=[ 3523], | 30.00th=[ 6849], 40.00th=[ 16450], 50.00th=[ 28181], 60.00th=[ 37487], | 70.00th=[ 49021], 80.00th=[ 64750], 90.00th=[ 90702], 95.00th=[113771], | 99.00th=[183501], 99.50th=[227541], 99.90th=[329253], 99.95th=[817890], | 99.99th=[817890] bw ( KiB/s): min= 7, max= 134, per=24.82%, avg=53.61, stdev=21.77, samples=227 iops : min= 1, max= 33, avg=12.74, stdev= 5.47, samples=227 lat (usec) : 50=1.33%, 100=3.68%, 250=0.26%, 500=0.07%, 750=0.03% lat (usec) : 1000=0.36% lat (msec) : 2=7.00%, 4=3.71%, 10=6.58%, 20=12.34%, 50=37.76% lat (msec) : 100=21.68%, 250=5.01%, 500=0.16%, 1000=0.03% cpu : usr=0.06%, sys=5.01%, ctx=6322, majf=0, minf=18 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=207KiB/s (212kB/s), 51.2KiB/s-53.2KiB/s (52.4kB/s-54.5kB/s), io=23.4MiB (24.6MB), run=113224-116091msec WRITE: bw=217KiB/s (222kB/s), 54.0KiB/s-55.3KiB/s (55.3kB/s-56.6kB/s), io=24.6MiB (25.7MB), run=113224-116091msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144667: Thu Aug 27 08:50:10 2026 read: IOPS=6, BW=25.6KiB/s (26.2kB/s)(5992KiB/234469msec) clat (msec): min=4, max=902, avg=30.97, stdev=39.50 lat (msec): min=4, max=902, avg=30.98, stdev=39.50 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 12], | 30.00th=[ 14], 40.00th=[ 17], 50.00th=[ 20], 60.00th=[ 24], | 70.00th=[ 31], 80.00th=[ 42], 90.00th=[ 65], 95.00th=[ 87], | 99.00th=[ 180], 99.50th=[ 213], 99.90th=[ 397], 99.95th=[ 902], | 99.99th=[ 902] bw ( KiB/s): min= 7, max= 96, per=27.49%, avg=27.76, stdev=18.30, samples=418 iops : min= 1, max= 24, avg= 6.33, stdev= 4.62, samples=418 write: IOPS=6, BW=26.9KiB/s (27.5kB/s)(6296KiB/234469msec); 0 zone resets clat (msec): min=29, max=517, avg=119.18, stdev=62.80 lat (msec): min=29, max=517, avg=119.18, stdev=62.80 clat percentiles (msec): | 1.00th=[ 45], 5.00th=[ 55], 10.00th=[ 62], 20.00th=[ 72], | 30.00th=[ 82], 40.00th=[ 91], 50.00th=[ 103], 60.00th=[ 115], | 70.00th=[ 132], 80.00th=[ 157], 90.00th=[ 203], 95.00th=[ 239], | 99.00th=[ 342], 99.50th=[ 414], 99.90th=[ 498], 99.95th=[ 518], | 99.99th=[ 518] bw ( KiB/s): min= 7, max= 63, per=25.15%, avg=26.66, stdev=12.44, samples=456 iops : min= 1, max= 15, avg= 6.05, stdev= 3.20, samples=456 lat (msec) : 10=5.57%, 20=19.40%, 50=17.64%, 100=29.30%, 250=26.04% lat (msec) : 500=1.99%, 750=0.03%, 1000=0.03% cpu : usr=0.04%, sys=1.14%, ctx=5182, 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=144668: Thu Aug 27 08:50:10 2026 read: IOPS=6, BW=25.1KiB/s (25.8kB/s)(5940KiB/236180msec) clat (msec): min=4, max=848, avg=31.40, stdev=38.07 lat (msec): min=4, max=848, avg=31.40, stdev=38.07 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 8], 10.00th=[ 10], 20.00th=[ 12], | 30.00th=[ 14], 40.00th=[ 17], 50.00th=[ 21], 60.00th=[ 25], | 70.00th=[ 31], 80.00th=[ 44], 90.00th=[ 68], 95.00th=[ 93], | 99.00th=[ 153], 99.50th=[ 190], 99.90th=[ 447], 99.95th=[ 852], | 99.99th=[ 852] bw ( KiB/s): min= 7, max= 103, per=27.95%, avg=28.23, stdev=18.81, samples=408 iops : min= 1, max= 25, avg= 6.46, stdev= 4.77, samples=408 write: IOPS=6, BW=26.9KiB/s (27.5kB/s)(6348KiB/236180msec); 0 zone resets clat (msec): min=31, max=530, avg=119.14, stdev=60.87 lat (msec): min=31, max=530, avg=119.14, stdev=60.87 clat percentiles (msec): | 1.00th=[ 42], 5.00th=[ 54], 10.00th=[ 62], 20.00th=[ 72], | 30.00th=[ 82], 40.00th=[ 92], 50.00th=[ 103], 60.00th=[ 118], | 70.00th=[ 136], 80.00th=[ 159], 90.00th=[ 199], 95.00th=[ 239], | 99.00th=[ 326], 99.50th=[ 363], 99.90th=[ 514], 99.95th=[ 531], | 99.99th=[ 531] bw ( KiB/s): min= 7, max= 72, per=25.09%, avg=26.60, stdev=12.47, samples=462 iops : min= 1, max= 18, avg= 6.03, stdev= 3.21, samples=462 lat (msec) : 10=6.38%, 20=17.48%, 50=18.65%, 100=29.04%, 250=26.33% lat (msec) : 500=2.02%, 750=0.07%, 1000=0.03% cpu : usr=0.04%, sys=1.13%, ctx=5117, 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=144669: Thu Aug 27 08:50:10 2026 read: IOPS=6, BW=25.7KiB/s (26.3kB/s)(6028KiB/234420msec) clat (msec): min=4, max=459, avg=30.75, stdev=33.31 lat (msec): min=4, max=459, avg=30.75, stdev=33.31 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 8], 10.00th=[ 10], 20.00th=[ 12], | 30.00th=[ 14], 40.00th=[ 17], 50.00th=[ 20], 60.00th=[ 24], | 70.00th=[ 31], 80.00th=[ 42], 90.00th=[ 68], 95.00th=[ 91], | 99.00th=[ 136], 99.50th=[ 165], 99.90th=[ 447], 99.95th=[ 460], | 99.99th=[ 460] bw ( KiB/s): min= 7, max= 128, per=27.43%, avg=27.71, stdev=18.78, samples=421 iops : min= 1, max= 32, avg= 6.31, stdev= 4.75, samples=421 write: IOPS=6, BW=26.7KiB/s (27.3kB/s)(6260KiB/234420msec); 0 zone resets clat (msec): min=33, max=1024, avg=119.86, stdev=65.20 lat (msec): min=33, max=1024, avg=119.87, stdev=65.20 clat percentiles (msec): | 1.00th=[ 42], 5.00th=[ 55], 10.00th=[ 61], 20.00th=[ 72], | 30.00th=[ 83], 40.00th=[ 92], 50.00th=[ 104], 60.00th=[ 115], | 70.00th=[ 136], 80.00th=[ 159], 90.00th=[ 201], 95.00th=[ 243], | 99.00th=[ 321], 99.50th=[ 372], 99.90th=[ 518], 99.95th=[ 1028], | 99.99th=[ 1028] bw ( KiB/s): min= 7, max= 64, per=24.98%, avg=26.48, stdev=12.73, samples=457 iops : min= 1, max= 16, avg= 6.00, stdev= 3.27, samples=457 lat (msec) : 10=6.41%, 20=19.01%, 50=17.06%, 100=28.74%, 250=26.37% lat (msec) : 500=2.34%, 750=0.03%, 2000=0.03% cpu : usr=0.05%, sys=1.15%, ctx=5182, 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=144670: Thu Aug 27 08:50:10 2026 read: IOPS=6, BW=25.9KiB/s (26.5kB/s)(6052KiB/233830msec) clat (msec): min=4, max=392, avg=30.75, stdev=31.85 lat (msec): min=4, max=392, avg=30.75, stdev=31.85 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 8], 10.00th=[ 10], 20.00th=[ 12], | 30.00th=[ 14], 40.00th=[ 17], 50.00th=[ 20], 60.00th=[ 24], | 70.00th=[ 31], 80.00th=[ 43], 90.00th=[ 68], 95.00th=[ 93], | 99.00th=[ 148], 99.50th=[ 203], 99.90th=[ 359], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 7, max= 112, per=27.62%, avg=27.89, stdev=19.11, samples=421 iops : min= 1, max= 28, avg= 6.36, stdev= 4.84, samples=421 write: IOPS=6, BW=26.7KiB/s (27.3kB/s)(6236KiB/233830msec); 0 zone resets clat (msec): min=31, max=1024, avg=119.83, stdev=64.21 lat (msec): min=31, max=1024, avg=119.83, stdev=64.21 clat percentiles (msec): | 1.00th=[ 43], 5.00th=[ 53], 10.00th=[ 62], 20.00th=[ 72], | 30.00th=[ 82], 40.00th=[ 93], 50.00th=[ 105], 60.00th=[ 117], | 70.00th=[ 136], 80.00th=[ 161], 90.00th=[ 201], 95.00th=[ 230], | 99.00th=[ 338], 99.50th=[ 384], 99.90th=[ 527], 99.95th=[ 1028], | 99.99th=[ 1028] bw ( KiB/s): min= 7, max= 63, per=24.91%, avg=26.40, stdev=12.33, samples=457 iops : min= 1, max= 15, avg= 5.98, stdev= 3.17, samples=457 lat (msec) : 10=6.02%, 20=19.21%, 50=17.87%, 100=28.03%, 250=27.02% lat (msec) : 500=1.79%, 750=0.03%, 2000=0.03% cpu : usr=0.04%, sys=1.15%, ctx=5192, 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=102KiB/s (104kB/s), 25.1KiB/s-25.9KiB/s (25.8kB/s-26.5kB/s), io=23.4MiB (24.6MB), run=233830-236180msec WRITE: bw=106KiB/s (109kB/s), 26.7KiB/s-26.9KiB/s (27.3kB/s-27.5kB/s), io=24.6MiB (25.7MB), run=233830-236180msec 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=144722: Thu Aug 27 08:50:44 2026 read: IOPS=16, BW=269KiB/s (276kB/s)(5920KiB/21987msec) clat (usec): min=34, max=144257, avg=32088.48, stdev=26894.51 lat (usec): min=34, max=144259, avg=32089.81, stdev=26894.55 clat percentiles (usec): | 1.00th=[ 40], 5.00th=[ 55], 10.00th=[ 62], 20.00th=[ 80], | 30.00th=[ 18744], 40.00th=[ 24249], 50.00th=[ 29754], 60.00th=[ 35914], | 70.00th=[ 45351], 80.00th=[ 51119], 90.00th=[ 64226], 95.00th=[ 80217], | 99.00th=[135267], 99.50th=[141558], 99.90th=[143655], 99.95th=[143655], | 99.99th=[143655] bw ( KiB/s): min= 157, max= 414, per=28.10%, avg=264.16, stdev=72.57, samples=43 iops : min= 9, max= 25, avg=15.77, stdev= 4.56, samples=43 write: IOPS=18, BW=290KiB/s (297kB/s)(6368KiB/21987msec); 0 zone resets clat (usec): min=1262, max=161088, avg=25128.13, stdev=26587.81 lat (usec): min=1264, max=161088, avg=25130.58, stdev=26587.68 clat percentiles (usec): | 1.00th=[ 1352], 5.00th=[ 1680], 10.00th=[ 2024], 20.00th=[ 3392], | 30.00th=[ 5669], 40.00th=[ 8455], 50.00th=[ 14484], 60.00th=[ 23987], | 70.00th=[ 33424], 80.00th=[ 45876], 90.00th=[ 62129], 95.00th=[ 77071], | 99.00th=[115868], 99.50th=[139461], 99.90th=[160433], 99.95th=[160433], | 99.99th=[160433] bw ( KiB/s): min= 94, max= 479, per=29.11%, avg=287.86, stdev=85.01, samples=43 iops : min= 5, max= 29, avg=17.26, stdev= 5.37, samples=43 lat (usec) : 50=2.08%, 100=8.20%, 250=1.04%, 500=0.26%, 1000=0.13% lat (msec) : 2=4.95%, 4=6.77%, 10=10.94%, 20=9.77%, 50=36.20% lat (msec) : 100=17.97%, 250=1.69% cpu : usr=0.10%, sys=6.87%, ctx=1403, 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=144724: Thu Aug 27 08:50:44 2026 read: IOPS=14, BW=226KiB/s (231kB/s)(5744KiB/25466msec) clat (usec): min=33, max=217910, avg=36598.71, stdev=33044.82 lat (usec): min=33, max=217911, avg=36602.87, stdev=33044.48 clat percentiles (usec): | 1.00th=[ 41], 5.00th=[ 56], 10.00th=[ 67], 20.00th=[ 281], | 30.00th=[ 19792], 40.00th=[ 28181], 50.00th=[ 33162], 60.00th=[ 39584], | 70.00th=[ 46924], 80.00th=[ 55313], 90.00th=[ 67634], 95.00th=[ 83362], | 99.00th=[177210], 99.50th=[200279], 99.90th=[217056], 99.95th=[217056], | 99.99th=[217056] bw ( KiB/s): min= 31, max= 495, per=24.53%, avg=230.58, stdev=94.10, samples=48 iops : min= 1, max= 30, avg=13.71, stdev= 5.90, samples=48 write: IOPS=16, BW=257KiB/s (263kB/s)(6544KiB/25466msec); 0 zone resets clat (usec): min=1385, max=216656, avg=29709.62, stdev=34177.79 lat (usec): min=1388, max=216658, avg=29712.00, stdev=34177.78 clat percentiles (usec): | 1.00th=[ 1483], 5.00th=[ 1795], 10.00th=[ 2147], 20.00th=[ 3687], | 30.00th=[ 5604], 40.00th=[ 8979], 50.00th=[ 14484], 60.00th=[ 26870], | 70.00th=[ 35914], 80.00th=[ 55837], 90.00th=[ 74974], 95.00th=[ 94897], | 99.00th=[147850], 99.50th=[168821], 99.90th=[217056], 99.95th=[217056], | 99.99th=[217056] bw ( KiB/s): min= 95, max= 446, per=25.82%, avg=255.41, stdev=92.01, samples=49 iops : min= 5, max= 27, avg=15.24, stdev= 5.80, samples=49 lat (usec) : 50=1.30%, 100=6.64%, 250=1.30%, 500=0.39%, 750=0.13% lat (usec) : 1000=0.13% lat (msec) : 2=4.30%, 4=7.16%, 10=11.59%, 20=10.94%, 50=31.64% lat (msec) : 100=20.31%, 250=4.17% cpu : usr=0.07%, sys=6.07%, ctx=1505, 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=144725: Thu Aug 27 08:50:44 2026 read: IOPS=15, BW=256KiB/s (262kB/s)(6256KiB/24456msec) clat (usec): min=38, max=206419, avg=33625.56, stdev=29704.63 lat (usec): min=38, max=206420, avg=33626.74, stdev=29704.63 clat percentiles (usec): | 1.00th=[ 41], 5.00th=[ 55], 10.00th=[ 62], 20.00th=[ 79], | 30.00th=[ 16909], 40.00th=[ 24773], 50.00th=[ 30802], 60.00th=[ 36439], | 70.00th=[ 44827], 80.00th=[ 55313], 90.00th=[ 68682], 95.00th=[ 82314], | 99.00th=[111674], 99.50th=[177210], 99.90th=[206570], 99.95th=[206570], | 99.99th=[206570] bw ( KiB/s): min= 63, max= 512, per=27.59%, avg=259.36, stdev=97.58, samples=47 iops : min= 3, max= 32, avg=15.53, stdev= 6.17, samples=47 write: IOPS=15, BW=247KiB/s (253kB/s)(6032KiB/24456msec); 0 zone resets clat (usec): min=1111, max=202341, avg=29499.60, stdev=33088.48 lat (usec): min=1113, max=202343, avg=29503.10, stdev=33088.37 clat percentiles (usec): | 1.00th=[ 1434], 5.00th=[ 1713], 10.00th=[ 2278], 20.00th=[ 4293], | 30.00th=[ 6915], 40.00th=[ 10290], 50.00th=[ 16909], 60.00th=[ 26870], | 70.00th=[ 37487], 80.00th=[ 50594], 90.00th=[ 73925], 95.00th=[ 90702], | 99.00th=[158335], 99.50th=[196084], 99.90th=[202376], 99.95th=[202376], | 99.99th=[202376] bw ( KiB/s): min= 63, max= 467, per=24.85%, avg=245.81, stdev=98.50, samples=47 iops : min= 3, max= 29, avg=14.68, stdev= 6.17, samples=47 lat (usec) : 50=1.56%, 100=10.03%, 250=1.04%, 500=0.13% lat (msec) : 2=4.17%, 4=5.47%, 10=10.42%, 20=9.90%, 50=34.51% lat (msec) : 100=19.66%, 250=3.12% cpu : usr=0.06%, sys=6.16%, ctx=1440, 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=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=144726: Thu Aug 27 08:50:44 2026 read: IOPS=15, BW=249KiB/s (255kB/s)(6032KiB/24265msec) clat (usec): min=37, max=140866, avg=30661.42, stdev=26126.90 lat (usec): min=37, max=140868, avg=30662.66, stdev=26126.88 clat percentiles (usec): | 1.00th=[ 43], 5.00th=[ 53], 10.00th=[ 62], 20.00th=[ 78], | 30.00th=[ 13698], 40.00th=[ 23200], 50.00th=[ 29754], 60.00th=[ 35390], | 70.00th=[ 41681], 80.00th=[ 53216], 90.00th=[ 63701], 95.00th=[ 77071], | 99.00th=[105382], 99.50th=[121111], 99.90th=[141558], 99.95th=[141558], | 99.99th=[141558] bw ( KiB/s): min= 31, max= 472, per=26.93%, avg=253.13, stdev=101.48, samples=47 iops : min= 1, max= 29, avg=15.06, stdev= 6.37, samples=47 write: IOPS=16, BW=258KiB/s (264kB/s)(6256KiB/24265msec); 0 zone resets clat (usec): min=917, max=323653, avg=31646.59, stdev=39665.79 lat (usec): min=918, max=323666, avg=31653.85, stdev=39663.02 clat percentiles (usec): | 1.00th=[ 1434], 5.00th=[ 1811], 10.00th=[ 2442], 20.00th=[ 4817], | 30.00th=[ 6980], 40.00th=[ 10159], 50.00th=[ 17695], 60.00th=[ 26084], | 70.00th=[ 37487], 80.00th=[ 51643], 90.00th=[ 79168], 95.00th=[ 98042], | 99.00th=[177210], 99.50th=[299893], 99.90th=[325059], 99.95th=[325059], | 99.99th=[325059] bw ( KiB/s): min= 62, max= 475, per=26.05%, avg=257.60, stdev=105.14, samples=48 iops : min= 3, max= 29, avg=15.33, stdev= 6.61, samples=48 lat (usec) : 50=1.69%, 100=8.98%, 250=1.56%, 500=0.65%, 750=0.13% lat (usec) : 1000=0.13% lat (msec) : 2=4.43%, 4=4.69%, 10=11.46%, 20=10.55%, 50=33.46% lat (msec) : 100=19.40%, 250=2.60%, 500=0.26% cpu : usr=0.08%, sys=5.92%, ctx=1347, 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=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=941KiB/s (963kB/s), 226KiB/s-269KiB/s (231kB/s-276kB/s), io=23.4MiB (24.5MB), run=21987-25466msec WRITE: bw=990KiB/s (1013kB/s), 247KiB/s-290KiB/s (253kB/s-297kB/s), io=24.6MiB (25.8MB), run=21987-25466msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144719: Thu Aug 27 08:51:24 2026 read: IOPS=5, BW=91.9KiB/s (94.1kB/s)(5920KiB/64428msec) clat (msec): min=6, max=222, avg=36.38, stdev=30.41 lat (msec): min=6, max=222, avg=36.38, stdev=30.41 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 19], 40.00th=[ 23], 50.00th=[ 26], 60.00th=[ 31], | 70.00th=[ 39], 80.00th=[ 50], 90.00th=[ 79], 95.00th=[ 103], | 99.00th=[ 148], 99.50th=[ 194], 99.90th=[ 222], 99.95th=[ 222], | 99.99th=[ 222] bw ( KiB/s): min= 31, max= 349, per=27.34%, avg=99.78, stdev=59.56, samples=116 iops : min= 1, max= 21, avg= 5.49, stdev= 3.77, samples=116 write: IOPS=6, BW=98.8KiB/s (101kB/s)(6368KiB/64428msec); 0 zone resets clat (msec): min=38, max=447, avg=127.58, stdev=52.16 lat (msec): min=38, max=447, avg=127.58, stdev=52.16 clat percentiles (msec): | 1.00th=[ 53], 5.00th=[ 65], 10.00th=[ 78], 20.00th=[ 87], | 30.00th=[ 97], 40.00th=[ 109], 50.00th=[ 117], 60.00th=[ 129], | 70.00th=[ 142], 80.00th=[ 161], 90.00th=[ 190], 95.00th=[ 239], | 99.00th=[ 300], 99.50th=[ 380], 99.90th=[ 447], 99.95th=[ 447], | 99.99th=[ 447] bw ( KiB/s): min= 31, max= 160, per=25.84%, avg=99.21, stdev=35.07, samples=126 iops : min= 1, max= 10, avg= 5.45, stdev= 2.27, samples=126 lat (msec) : 10=2.08%, 20=14.45%, 50=22.14%, 100=23.44%, 250=36.20% lat (msec) : 500=1.69% cpu : usr=0.02%, sys=1.31%, ctx=1268, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144720: Thu Aug 27 08:51:24 2026 read: IOPS=5, BW=87.7KiB/s (89.8kB/s)(5744KiB/65478msec) clat (msec): min=6, max=201, avg=34.14, stdev=30.52 lat (msec): min=6, max=201, avg=34.14, stdev=30.52 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 18], 40.00th=[ 22], 50.00th=[ 25], 60.00th=[ 28], | 70.00th=[ 31], 80.00th=[ 44], 90.00th=[ 75], 95.00th=[ 104], | 99.00th=[ 163], 99.50th=[ 186], 99.90th=[ 201], 99.95th=[ 201], | 99.99th=[ 201] bw ( KiB/s): min= 31, max= 287, per=27.24%, avg=99.43, stdev=61.74, samples=113 iops : min= 1, max= 17, avg= 5.47, stdev= 3.93, samples=113 write: IOPS=6, BW=99.9KiB/s (102kB/s)(6544KiB/65478msec); 0 zone resets clat (msec): min=32, max=450, avg=129.37, stdev=51.67 lat (msec): min=32, max=450, avg=129.37, stdev=51.67 clat percentiles (msec): | 1.00th=[ 57], 5.00th=[ 68], 10.00th=[ 75], 20.00th=[ 88], | 30.00th=[ 97], 40.00th=[ 110], 50.00th=[ 122], 60.00th=[ 132], | 70.00th=[ 144], 80.00th=[ 165], 90.00th=[ 197], 95.00th=[ 224], | 99.00th=[ 292], 99.50th=[ 334], 99.90th=[ 451], 99.95th=[ 451], | 99.99th=[ 451] bw ( KiB/s): min= 31, max= 160, per=26.23%, avg=100.72, stdev=33.78, samples=127 iops : min= 1, max= 10, avg= 5.55, stdev= 2.17, samples=127 lat (msec) : 10=1.04%, 20=15.76%, 50=22.01%, 100=22.66%, 250=36.98% lat (msec) : 500=1.56% cpu : usr=0.04%, sys=1.13%, ctx=1134, 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=144721: Thu Aug 27 08:51:24 2026 read: IOPS=6, BW=101KiB/s (103kB/s)(6256KiB/62038msec) clat (msec): min=7, max=217, avg=33.85, stdev=28.95 lat (msec): min=7, max=217, avg=33.85, stdev=28.95 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 20], 40.00th=[ 23], 50.00th=[ 26], 60.00th=[ 30], | 70.00th=[ 36], 80.00th=[ 45], 90.00th=[ 63], 95.00th=[ 91], | 99.00th=[ 186], 99.50th=[ 194], 99.90th=[ 218], 99.95th=[ 218], | 99.99th=[ 218] bw ( KiB/s): min= 30, max= 316, per=29.77%, avg=108.66, stdev=69.00, samples=114 iops : min= 1, max= 19, avg= 6.04, stdev= 4.44, samples=114 write: IOPS=6, BW=97.2KiB/s (99.6kB/s)(6032KiB/62038msec); 0 zone resets clat (msec): min=32, max=344, avg=128.75, stdev=52.92 lat (msec): min=32, max=344, avg=128.75, stdev=52.92 clat percentiles (msec): | 1.00th=[ 52], 5.00th=[ 67], 10.00th=[ 74], 20.00th=[ 86], | 30.00th=[ 96], 40.00th=[ 108], 50.00th=[ 118], 60.00th=[ 131], | 70.00th=[ 146], 80.00th=[ 165], 90.00th=[ 203], 95.00th=[ 226], | 99.00th=[ 317], 99.50th=[ 334], 99.90th=[ 347], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 31, max= 191, per=25.18%, avg=96.70, stdev=35.64, samples=123 iops : min= 1, max= 11, avg= 5.30, stdev= 2.30, samples=123 lat (msec) : 10=2.73%, 20=14.97%, 50=25.39%, 100=22.27%, 250=32.94% lat (msec) : 500=1.69% cpu : usr=0.02%, sys=1.32%, ctx=1308, 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=144723: Thu Aug 27 08:51:24 2026 read: IOPS=5, BW=93.3KiB/s (95.6kB/s)(6032KiB/64637msec) clat (msec): min=6, max=218, avg=33.97, stdev=29.34 lat (msec): min=6, max=218, avg=33.97, stdev=29.34 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 25], 60.00th=[ 30], | 70.00th=[ 35], 80.00th=[ 44], 90.00th=[ 65], 95.00th=[ 89], | 99.00th=[ 174], 99.50th=[ 197], 99.90th=[ 220], 99.95th=[ 220], | 99.99th=[ 220] bw ( KiB/s): min= 31, max= 288, per=27.65%, avg=100.92, stdev=62.56, samples=117 iops : min= 1, max= 18, avg= 5.58, stdev= 3.97, samples=117 write: IOPS=6, BW=96.8KiB/s (99.1kB/s)(6256KiB/64637msec); 0 zone resets clat (msec): min=51, max=327, avg=132.37, stdev=52.42 lat (msec): min=51, max=327, avg=132.38, stdev=52.42 clat percentiles (msec): | 1.00th=[ 54], 5.00th=[ 69], 10.00th=[ 77], 20.00th=[ 91], | 30.00th=[ 101], 40.00th=[ 112], 50.00th=[ 123], 60.00th=[ 136], | 70.00th=[ 148], 80.00th=[ 169], 90.00th=[ 192], 95.00th=[ 249], | 99.00th=[ 296], 99.50th=[ 317], 99.90th=[ 330], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 31, max= 192, per=25.24%, avg=96.94, stdev=35.00, samples=127 iops : min= 1, max= 12, avg= 5.31, stdev= 2.22, samples=127 lat (msec) : 10=2.21%, 20=16.02%, 50=22.79%, 100=21.88%, 250=34.64% lat (msec) : 500=2.47% cpu : usr=0.04%, sys=1.21%, ctx=1162, 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=366KiB/s (375kB/s), 87.7KiB/s-101KiB/s (89.8kB/s-103kB/s), io=23.4MiB (24.5MB), run=62038-65478msec WRITE: bw=385KiB/s (394kB/s), 96.8KiB/s-99.9KiB/s (99.1kB/s-102kB/s), io=24.6MiB (25.8MB), run=62038-65478msec 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=144745: Thu Aug 27 08:51:40 2026 read: IOPS=2, BW=2359KiB/s (2416kB/s)(7168KiB/3038msec) clat (usec): min=1751, max=413013, avg=178673.47, stdev=131544.38 lat (usec): min=1752, max=413015, avg=178674.94, stdev=131544.50 clat percentiles (usec): | 1.00th=[ 1745], 5.00th=[ 1745], 10.00th=[ 1745], 20.00th=[131597], | 30.00th=[132645], 40.00th=[132645], 50.00th=[139461], 60.00th=[147850], | 70.00th=[147850], 80.00th=[283116], 90.00th=[413139], 95.00th=[413139], | 99.00th=[413139], 99.50th=[413139], 99.90th=[413139], 99.95th=[413139], | 99.99th=[413139] bw ( KiB/s): min= 4071, max= 4815, per=100.00%, avg=4443.00, stdev=526.09, samples=2 iops : min= 3, max= 4, avg= 3.50, stdev= 0.71, samples=2 write: IOPS=1, BW=1685KiB/s (1726kB/s)(5120KiB/3038msec); 0 zone resets clat (msec): min=220, max=553, avg=345.31, stdev=137.64 lat (msec): min=220, max=553, avg=345.52, stdev=137.65 clat percentiles (msec): | 1.00th=[ 222], 5.00th=[ 222], 10.00th=[ 222], 20.00th=[ 222], | 30.00th=[ 224], 40.00th=[ 224], 50.00th=[ 338], 60.00th=[ 338], | 70.00th=[ 393], 80.00th=[ 393], 90.00th=[ 550], 95.00th=[ 550], | 99.00th=[ 550], 99.50th=[ 550], 99.90th=[ 550], 99.95th=[ 550], | 99.99th=[ 550] bw ( KiB/s): min= 2007, max= 4087, per=44.91%, avg=2711.00, stdev=1191.76, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 2=8.33%, 250=50.00%, 500=33.33%, 750=8.33% cpu : usr=0.16%, sys=12.78%, ctx=255, 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=144746: Thu Aug 27 08:51:40 2026 read: IOPS=0, BW=431KiB/s (442kB/s)(2048KiB/4750msec) clat (usec): min=522, max=2464.9k, avg=1232736.75, stdev=1742613.63 lat (usec): min=523, max=2464.0k, avg=1232738.40, stdev=1742614.48 clat percentiles (usec): | 1.00th=[ 523], 5.00th=[ 523], 10.00th=[ 523], | 20.00th=[ 523], 30.00th=[ 523], 40.00th=[ 523], | 50.00th=[ 523], 60.00th=[2466251], 70.00th=[2466251], | 80.00th=[2466251], 90.00th=[2466251], 95.00th=[2466251], | 99.00th=[2466251], 99.50th=[2466251], 99.90th=[2466251], | 99.95th=[2466251], 99.99th=[2466251] bw ( KiB/s): min= 1973, max= 2031, per=46.44%, avg=2002.00, stdev=41.01, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2156KiB/s (2208kB/s)(10.0MiB/4750msec); 0 zone resets clat (msec): min=79, max=427, avg=205.62, stdev=124.23 lat (msec): min=80, max=428, avg=205.88, stdev=124.19 clat percentiles (msec): | 1.00th=[ 80], 5.00th=[ 80], 10.00th=[ 80], 20.00th=[ 81], | 30.00th=[ 110], 40.00th=[ 138], 50.00th=[ 144], 60.00th=[ 148], | 70.00th=[ 259], 80.00th=[ 330], 90.00th=[ 342], 95.00th=[ 426], | 99.00th=[ 426], 99.50th=[ 426], 99.90th=[ 426], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 3946, max= 6131, per=75.00%, avg=4527.00, stdev=1070.54, samples=4 iops : min= 3, max= 5, avg= 3.50, stdev= 1.00, samples=4 lat (usec) : 750=8.33% lat (msec) : 100=16.67%, 250=33.33%, 500=33.33%, >=2000=8.33% cpu : usr=0.06%, sys=12.49%, ctx=217, 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=144747: Thu Aug 27 08:51:40 2026 read: IOPS=1, BW=1500KiB/s (1536kB/s)(6144KiB/4095msec) clat (msec): min=4, max=355, avg=234.36, stdev=128.52 lat (msec): min=4, max=355, avg=234.36, stdev=128.52 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 5], 10.00th=[ 5], 20.00th=[ 199], | 30.00th=[ 199], 40.00th=[ 218], 50.00th=[ 218], 60.00th=[ 317], | 70.00th=[ 317], 80.00th=[ 317], 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= 2035, max= 3946, per=58.36%, avg=2515.75, stdev=953.51, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1500KiB/s (1536kB/s)(6144KiB/4095msec); 0 zone resets clat (msec): min=140, max=1057, avg=411.52, stdev=359.45 lat (msec): min=140, max=1057, avg=411.62, stdev=359.48 clat percentiles (msec): | 1.00th=[ 142], 5.00th=[ 142], 10.00th=[ 142], 20.00th=[ 182], | 30.00th=[ 182], 40.00th=[ 220], 50.00th=[ 220], 60.00th=[ 255], | 70.00th=[ 617], 80.00th=[ 617], 90.00th=[ 1062], 95.00th=[ 1062], | 99.00th=[ 1062], 99.50th=[ 1062], 99.90th=[ 1062], 99.95th=[ 1062], | 99.99th=[ 1062] bw ( KiB/s): min= 1973, max= 3282, per=38.64%, avg=2332.25, stdev=633.89, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (msec) : 10=8.33%, 250=41.67%, 500=33.33%, 750=8.33%, 2000=8.33% cpu : usr=0.05%, sys=9.18%, ctx=285, 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=144748: Thu Aug 27 08:51:40 2026 read: IOPS=1, BW=1388KiB/s (1421kB/s)(5120KiB/3689msec) clat (usec): min=382, max=420661, avg=291811.47, stdev=169472.93 lat (usec): min=383, max=420662, avg=291812.45, stdev=169473.11 clat percentiles (usec): | 1.00th=[ 383], 5.00th=[ 383], 10.00th=[ 383], 20.00th=[ 383], | 30.00th=[304088], 40.00th=[304088], 50.00th=[337642], 60.00th=[337642], | 70.00th=[396362], 80.00th=[396362], 90.00th=[421528], 95.00th=[421528], | 99.00th=[421528], 99.50th=[421528], 99.90th=[421528], 99.95th=[421528], | 99.99th=[421528] bw ( KiB/s): min= 2043, max= 5919, per=92.35%, avg=3981.00, stdev=2740.75, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=1, BW=1943KiB/s (1990kB/s)(7168KiB/3689msec); 0 zone resets clat (msec): min=76, max=657, avg=299.28, stdev=227.26 lat (msec): min=76, max=657, avg=299.43, stdev=227.29 clat percentiles (msec): | 1.00th=[ 77], 5.00th=[ 77], 10.00th=[ 77], 20.00th=[ 126], | 30.00th=[ 153], 40.00th=[ 153], 50.00th=[ 213], 60.00th=[ 305], | 70.00th=[ 305], 80.00th=[ 567], 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= 1643, max= 3968, per=37.73%, avg=2277.50, stdev=841.66, samples=6 iops : min= 1, max= 3, avg= 1.33, stdev= 0.82, samples=6 lat (usec) : 500=8.33% lat (msec) : 100=8.33%, 250=25.00%, 500=41.67%, 750=16.67% cpu : usr=0.11%, sys=11.39%, ctx=247, 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=4312KiB/s (4415kB/s), 431KiB/s-2359KiB/s (442kB/s-2416kB/s), io=20.0MiB (20.0MB), run=3038-4750msec WRITE: bw=6036KiB/s (6181kB/s), 1500KiB/s-2156KiB/s (1536kB/s-2208kB/s), io=28.0MiB (29.4MB), run=3038-4750msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144750: Thu Aug 27 08:51:41 2026 read: IOPS=2, BW=2173KiB/s (2226kB/s)(7168KiB/3298msec) clat (msec): min=92, max=362, avg=167.96, stdev=90.63 lat (msec): min=92, max=362, avg=167.96, stdev=90.63 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 92], 10.00th=[ 92], 20.00th=[ 96], | 30.00th=[ 150], 40.00th=[ 150], 50.00th=[ 157], 60.00th=[ 159], | 70.00th=[ 159], 80.00th=[ 161], 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= 1681, max= 4063, per=64.48%, avg=2948.00, stdev=1260.32, samples=4 iops : min= 1, max= 3, avg= 2.25, stdev= 0.96, samples=4 write: IOPS=1, BW=1552KiB/s (1590kB/s)(5120KiB/3298msec); 0 zone resets clat (msec): min=186, max=610, avg=380.84, stdev=158.92 lat (msec): min=186, max=610, avg=380.96, stdev=158.89 clat percentiles (msec): | 1.00th=[ 186], 5.00th=[ 186], 10.00th=[ 186], 20.00th=[ 186], | 30.00th=[ 309], 40.00th=[ 309], 50.00th=[ 355], 60.00th=[ 355], | 70.00th=[ 447], 80.00th=[ 447], 90.00th=[ 609], 95.00th=[ 609], | 99.00th=[ 609], 99.50th=[ 609], 99.90th=[ 609], 99.95th=[ 609], | 99.99th=[ 609] bw ( KiB/s): min= 1910, max= 2048, per=31.01%, avg=1984.75, stdev=65.66, samples=4 iops : min= 1, max= 2, avg= 1.25, stdev= 0.50, samples=4 lat (msec) : 100=16.67%, 250=41.67%, 500=33.33%, 750=8.33% cpu : usr=0.00%, sys=4.40%, ctx=64, 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=144751: Thu Aug 27 08:51:41 2026 read: IOPS=0, BW=457KiB/s (468kB/s)(2048KiB/4479msec) clat (msec): min=119, max=1571, avg=845.51, stdev=1026.94 lat (msec): min=119, max=1571, avg=845.51, stdev=1026.94 clat percentiles (msec): | 1.00th=[ 120], 5.00th=[ 120], 10.00th=[ 120], 20.00th=[ 120], | 30.00th=[ 120], 40.00th=[ 120], 50.00th=[ 120], 60.00th=[ 1569], | 70.00th=[ 1569], 80.00th=[ 1569], 90.00th=[ 1569], 95.00th=[ 1569], | 99.00th=[ 1569], 99.50th=[ 1569], 99.90th=[ 1569], 99.95th=[ 1569], | 99.99th=[ 1569] bw ( KiB/s): min= 1910, max= 2019, per=42.97%, avg=1964.50, stdev=77.07, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2286KiB/s (2341kB/s)(10.0MiB/4479msec); 0 zone resets clat (msec): min=128, max=559, avg=260.50, stdev=141.29 lat (msec): min=128, max=559, avg=260.62, stdev=141.31 clat percentiles (msec): | 1.00th=[ 129], 5.00th=[ 129], 10.00th=[ 129], 20.00th=[ 130], | 30.00th=[ 142], 40.00th=[ 169], 50.00th=[ 215], 60.00th=[ 253], | 70.00th=[ 266], 80.00th=[ 317], 90.00th=[ 430], 95.00th=[ 558], | 99.00th=[ 558], 99.50th=[ 558], 99.90th=[ 558], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 1950, max= 6144, per=63.38%, avg=4057.25, stdev=1712.39, samples=4 iops : min= 1, max= 6, avg= 3.50, stdev= 2.08, samples=4 lat (msec) : 250=50.00%, 500=33.33%, 750=8.33%, 2000=8.33% cpu : usr=0.04%, sys=5.25%, ctx=112, 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=144752: Thu Aug 27 08:51:41 2026 read: IOPS=1, BW=1653KiB/s (1693kB/s)(6144KiB/3716msec) clat (msec): min=81, max=306, avg=157.96, stdev=82.97 lat (msec): min=81, max=306, avg=157.96, stdev=82.97 clat percentiles (msec): | 1.00th=[ 83], 5.00th=[ 83], 10.00th=[ 83], 20.00th=[ 89], | 30.00th=[ 89], 40.00th=[ 127], 50.00th=[ 127], 60.00th=[ 161], | 70.00th=[ 186], 80.00th=[ 186], 90.00th=[ 309], 95.00th=[ 309], | 99.00th=[ 309], 99.50th=[ 309], 99.90th=[ 309], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 2048, max= 4063, per=72.99%, avg=3337.00, stdev=1119.28, samples=3 iops : min= 2, max= 3, avg= 2.67, stdev= 0.58, samples=3 write: IOPS=1, BW=1653KiB/s (1693kB/s)(6144KiB/3716msec); 0 zone resets clat (msec): min=284, max=541, avg=406.89, stdev=84.50 lat (msec): min=285, max=541, avg=407.09, stdev=84.34 clat percentiles (msec): | 1.00th=[ 284], 5.00th=[ 284], 10.00th=[ 284], 20.00th=[ 363], | 30.00th=[ 363], 40.00th=[ 405], 50.00th=[ 405], 60.00th=[ 422], | 70.00th=[ 426], 80.00th=[ 426], 90.00th=[ 542], 95.00th=[ 542], | 99.00th=[ 542], 99.50th=[ 542], 99.90th=[ 542], 99.95th=[ 542], | 99.99th=[ 542] bw ( KiB/s): min= 1910, max= 4000, per=39.01%, avg=2497.25, stdev=1003.72, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 lat (msec) : 100=16.67%, 250=25.00%, 500=50.00%, 750=8.33% cpu : usr=0.03%, sys=4.44%, ctx=61, 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=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=144753: Thu Aug 27 08:51:41 2026 read: IOPS=1, BW=1345KiB/s (1378kB/s)(5120KiB/3806msec) clat (msec): min=83, max=204, avg=121.71, stdev=49.53 lat (msec): min=83, max=204, avg=121.71, stdev=49.53 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 84], 10.00th=[ 84], 20.00th=[ 84], | 30.00th=[ 90], 40.00th=[ 90], 50.00th=[ 103], 60.00th=[ 103], | 70.00th=[ 130], 80.00th=[ 130], 90.00th=[ 205], 95.00th=[ 205], | 99.00th=[ 205], 99.50th=[ 205], 99.90th=[ 205], 99.95th=[ 205], | 99.99th=[ 205] bw ( KiB/s): min= 3900, max= 4096, per=87.45%, avg=3998.00, stdev=138.59, samples=2 iops : min= 3, max= 4, avg= 3.50, stdev= 0.71, samples=2 write: IOPS=1, BW=1883KiB/s (1929kB/s)(7168KiB/3806msec); 0 zone resets clat (msec): min=129, max=699, avg=420.72, stdev=220.68 lat (msec): min=130, max=699, avg=422.46, stdev=221.93 clat percentiles (msec): | 1.00th=[ 130], 5.00th=[ 130], 10.00th=[ 130], 20.00th=[ 228], | 30.00th=[ 317], 40.00th=[ 317], 50.00th=[ 351], 60.00th=[ 558], | 70.00th=[ 558], 80.00th=[ 659], 90.00th=[ 701], 95.00th=[ 701], | 99.00th=[ 701], 99.50th=[ 701], 99.90th=[ 701], 99.95th=[ 701], | 99.99th=[ 701] bw ( KiB/s): min= 1910, max= 4039, per=46.47%, avg=2974.75, stdev=1206.59, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 lat (msec) : 100=16.67%, 250=41.67%, 500=16.67%, 750=25.00% cpu : usr=0.00%, sys=4.05%, ctx=56, 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=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=4572KiB/s (4682kB/s), 457KiB/s-2173KiB/s (468kB/s-2226kB/s), io=20.0MiB (20.0MB), run=3298-4479msec WRITE: bw=6401KiB/s (6555kB/s), 1552KiB/s-2286KiB/s (1590kB/s-2341kB/s), io=28.0MiB (29.4MB), run=3298-4479msec 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=144760: Thu Aug 27 08:51:54 2026 read: IOPS=1, BW=5442KiB/s (5573kB/s)(12.0MiB/2258msec) clat (msec): min=613, max=966, avg=743.74, stdev=193.80 lat (msec): min=613, max=966, avg=743.74, stdev=193.80 clat percentiles (msec): | 1.00th=[ 617], 5.00th=[ 617], 10.00th=[ 617], 20.00th=[ 617], | 30.00th=[ 617], 40.00th=[ 651], 50.00th=[ 651], 60.00th=[ 651], | 70.00th=[ 969], 80.00th=[ 969], 90.00th=[ 969], 95.00th=[ 969], | 99.00th=[ 969], 99.50th=[ 969], 99.90th=[ 969], 99.95th=[ 969], | 99.99th=[ 969] bw ( KiB/s): min= 8143, max= 8175, per=100.00%, avg=8159.00, stdev=22.63, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=66.67%, 1000=33.33% cpu : usr=0.00%, sys=15.82%, ctx=405, 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=144761: Thu Aug 27 08:51:54 2026 read: IOPS=0, BW=1458KiB/s (1493kB/s)(4096KiB/2809msec) clat (nsec): min=529009k, max=529009k, avg=529009301.00, stdev= 0.00 lat (nsec): min=529011k, max=529011k, avg=529011351.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 531], 5.00th=[ 531], 10.00th=[ 531], 20.00th=[ 531], | 30.00th=[ 531], 40.00th=[ 531], 50.00th=[ 531], 60.00th=[ 531], | 70.00th=[ 531], 80.00th=[ 531], 90.00th=[ 531], 95.00th=[ 531], | 99.00th=[ 531], 99.50th=[ 531], 99.90th=[ 531], 99.95th=[ 531], | 99.99th=[ 531] bw ( KiB/s): min= 8175, max= 8175, per=100.00%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2916KiB/s (2986kB/s)(8192KiB/2809msec); 0 zone resets clat (msec): min=734, max=1472, avg=1103.54, stdev=522.40 lat (msec): min=738, max=1477, avg=1107.58, stdev=522.49 clat percentiles (msec): | 1.00th=[ 735], 5.00th=[ 735], 10.00th=[ 735], 20.00th=[ 735], | 30.00th=[ 735], 40.00th=[ 735], 50.00th=[ 735], 60.00th=[ 1469], | 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= 8143, max= 8143, per=69.81%, avg=8143.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=66.67%, 2000=33.33% cpu : usr=0.00%, sys=3.13%, ctx=121, 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=144762: Thu Aug 27 08:51:54 2026 write: IOPS=1, BW=5001KiB/s (5121kB/s)(12.0MiB/2457msec); 0 zone resets clat (msec): min=640, max=967, avg=805.00, stdev=163.65 lat (msec): min=640, max=972, avg=806.86, stdev=165.97 clat percentiles (msec): | 1.00th=[ 642], 5.00th=[ 642], 10.00th=[ 642], 20.00th=[ 642], | 30.00th=[ 642], 40.00th=[ 810], 50.00th=[ 810], 60.00th=[ 810], | 70.00th=[ 969], 80.00th=[ 969], 90.00th=[ 969], 95.00th=[ 969], | 99.00th=[ 969], 99.50th=[ 969], 99.90th=[ 969], 99.95th=[ 969], | 99.99th=[ 969] bw ( KiB/s): min= 8047, max= 8175, per=69.53%, avg=8111.00, stdev=90.51, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 1000=66.67% cpu : usr=0.00%, sys=8.06%, ctx=71, 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=144763: Thu Aug 27 08:51:54 2026 write: IOPS=1, BW=5824KiB/s (5963kB/s)(12.0MiB/2110msec); 0 zone resets clat (msec): min=469, max=1104, avg=683.49, stdev=364.88 lat (msec): min=470, max=1105, avg=683.81, stdev=364.81 clat percentiles (msec): | 1.00th=[ 468], 5.00th=[ 468], 10.00th=[ 468], 20.00th=[ 468], | 30.00th=[ 468], 40.00th=[ 477], 50.00th=[ 477], 60.00th=[ 477], | 70.00th=[ 1099], 80.00th=[ 1099], 90.00th=[ 1099], 95.00th=[ 1099], | 99.00th=[ 1099], 99.50th=[ 1099], 99.90th=[ 1099], 99.95th=[ 1099], | 99.99th=[ 1099] bw ( KiB/s): min= 7160, max= 8175, per=65.73%, avg=7667.50, stdev=717.71, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=66.67%, 2000=33.33% cpu : usr=0.00%, sys=4.50%, ctx=37, 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=5833KiB/s (5973kB/s), 1458KiB/s-5442KiB/s (1493kB/s-5573kB/s), io=16.0MiB (16.8MB), run=2258-2809msec WRITE: bw=11.4MiB/s (11.9MB/s), 2916KiB/s-5824KiB/s (2986kB/s-5963kB/s), io=32.0MiB (33.6MB), run=2110-2809msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144765: Thu Aug 27 08:51:54 2026 read: IOPS=1, BW=4613KiB/s (4723kB/s)(12.0MiB/2664msec) clat (msec): min=280, max=1296, avg=881.00, stdev=532.71 lat (msec): min=280, max=1296, avg=881.00, stdev=532.71 clat percentiles (msec): | 1.00th=[ 279], 5.00th=[ 279], 10.00th=[ 279], 20.00th=[ 279], | 30.00th=[ 279], 40.00th=[ 1070], 50.00th=[ 1070], 60.00th=[ 1070], | 70.00th=[ 1301], 80.00th=[ 1301], 90.00th=[ 1301], 95.00th=[ 1301], | 99.00th=[ 1301], 99.50th=[ 1301], 99.90th=[ 1301], 99.95th=[ 1301], | 99.99th=[ 1301] bw ( KiB/s): min= 8078, max= 8126, per=100.00%, avg=8102.00, stdev=33.94, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.00%, sys=3.00%, ctx=60, 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=144766: Thu Aug 27 08:51:54 2026 read: IOPS=0, BW=1332KiB/s (1364kB/s)(4096KiB/3075msec) clat (nsec): min=1183.8M, max=1183.8M, avg=1183754671.00, stdev= 0.00 lat (nsec): min=1183.8M, max=1183.8M, avg=1183757305.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1183], 5.00th=[ 1183], 10.00th=[ 1183], 20.00th=[ 1183], | 30.00th=[ 1183], 40.00th=[ 1183], 50.00th=[ 1183], 60.00th=[ 1183], | 70.00th=[ 1183], 80.00th=[ 1183], 90.00th=[ 1183], 95.00th=[ 1183], | 99.00th=[ 1183], 99.50th=[ 1183], 99.90th=[ 1183], 99.95th=[ 1183], | 99.99th=[ 1183] bw ( KiB/s): min= 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=2664KiB/s (2728kB/s)(8192KiB/3075msec); 0 zone resets clat (msec): min=667, max=1181, avg=924.50, stdev=363.47 lat (msec): min=668, max=1181, avg=925.17, stdev=363.13 clat percentiles (msec): | 1.00th=[ 667], 5.00th=[ 667], 10.00th=[ 667], 20.00th=[ 667], | 30.00th=[ 667], 40.00th=[ 667], 50.00th=[ 667], 60.00th=[ 1183], | 70.00th=[ 1183], 80.00th=[ 1183], 90.00th=[ 1183], 95.00th=[ 1183], | 99.00th=[ 1183], 99.50th=[ 1183], 99.90th=[ 1183], 99.95th=[ 1183], | 99.99th=[ 1183] bw ( KiB/s): min= 8175, max= 8175, per=77.09%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=33.33%, 2000=66.67% cpu : usr=0.00%, sys=3.68%, ctx=50, 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=144767: Thu Aug 27 08:51:54 2026 write: IOPS=0, BW=3977KiB/s (4072kB/s)(12.0MiB/3090msec); 0 zone resets clat (msec): min=333, max=1523, avg=1016.81, stdev=614.16 lat (msec): min=334, max=1524, avg=1017.35, stdev=614.14 clat percentiles (msec): | 1.00th=[ 334], 5.00th=[ 334], 10.00th=[ 334], 20.00th=[ 334], | 30.00th=[ 334], 40.00th=[ 1200], 50.00th=[ 1200], 60.00th=[ 1200], | 70.00th=[ 1519], 80.00th=[ 1519], 90.00th=[ 1519], 95.00th=[ 1519], | 99.00th=[ 1519], 99.50th=[ 1519], 99.90th=[ 1519], 99.95th=[ 1519], | 99.99th=[ 1519] bw ( KiB/s): min= 8062, max= 8143, per=76.41%, avg=8102.50, stdev=57.28, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.00%, sys=3.59%, ctx=42, 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=144768: Thu Aug 27 08:51:54 2026 write: IOPS=1, BW=4955KiB/s (5074kB/s)(12.0MiB/2480msec); 0 zone resets clat (msec): min=363, max=1362, avg=817.38, stdev=505.51 lat (msec): min=364, max=1362, avg=817.92, stdev=505.42 clat percentiles (msec): | 1.00th=[ 363], 5.00th=[ 363], 10.00th=[ 363], 20.00th=[ 363], | 30.00th=[ 363], 40.00th=[ 726], 50.00th=[ 726], 60.00th=[ 726], | 70.00th=[ 1368], 80.00th=[ 1368], 90.00th=[ 1368], 95.00th=[ 1368], | 99.00th=[ 1368], 99.50th=[ 1368], 99.90th=[ 1368], 99.95th=[ 1368], | 99.99th=[ 1368] bw ( KiB/s): min= 8047, max= 8192, per=76.57%, avg=8119.50, stdev=102.53, 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=3.91%, ctx=48, 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=5328KiB/s (5456kB/s), 1332KiB/s-4613KiB/s (1364kB/s-4723kB/s), io=16.0MiB (16.8MB), run=2664-3075msec WRITE: bw=10.4MiB/s (10.9MB/s), 2664KiB/s-4955KiB/s (2728kB/s-5074kB/s), io=32.0MiB (33.6MB), run=2480-3090msec