== sanity test 398b: DIO and buffer IO race ============== 08:06:10 (1789301170) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 6.03345 s, 8.3 MB/s mix direct rw 4096 by fio with 4 jobs... mix buffer rw 4096 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=144908: Sun Sep 13 08:08:24 2026 read: IOPS=13, BW=53.5KiB/s (54.7kB/s)(5992KiB/112102msec) clat (usec): min=33, max=367702, avg=35570.10, stdev=27550.71 lat (usec): min=33, max=367704, avg=35578.54, stdev=27548.02 clat percentiles (usec): | 1.00th=[ 44], 5.00th=[ 62], 10.00th=[ 81], 20.00th=[ 15926], | 30.00th=[ 20579], 40.00th=[ 25297], 50.00th=[ 30016], 60.00th=[ 36439], | 70.00th=[ 44827], 80.00th=[ 54789], 90.00th=[ 70779], 95.00th=[ 84411], | 99.00th=[114820], 99.50th=[133694], 99.90th=[179307], 99.95th=[367002], | 99.99th=[367002] bw ( KiB/s): min= 15, max= 141, per=25.30%, avg=53.39, stdev=20.91, samples=219 iops : min= 3, max= 35, avg=12.69, stdev= 5.27, samples=219 write: IOPS=14, BW=56.2KiB/s (57.5kB/s)(6296KiB/112102msec); 0 zone resets clat (usec): min=762, max=293496, avg=37270.57, stdev=36999.02 lat (usec): min=764, max=293498, avg=37276.69, stdev=37001.99 clat percentiles (usec): | 1.00th=[ 1074], 5.00th=[ 1205], 10.00th=[ 1401], 20.00th=[ 3785], | 30.00th=[ 8717], 40.00th=[ 19268], 50.00th=[ 27132], 60.00th=[ 38536], | 70.00th=[ 50070], 80.00th=[ 64750], 90.00th=[ 88605], 95.00th=[108528], | 99.00th=[160433], 99.50th=[183501], 99.90th=[244319], 99.95th=[291505], | 99.99th=[291505] bw ( KiB/s): min= 6, max= 125, per=25.17%, avg=55.62, stdev=20.80, samples=221 iops : min= 1, max= 31, avg=13.24, stdev= 5.25, samples=221 lat (usec) : 50=0.72%, 100=4.52%, 250=0.55%, 500=0.20%, 750=0.07% lat (usec) : 1000=0.20% lat (msec) : 2=6.80%, 4=3.65%, 10=6.02%, 20=12.14%, 50=38.35% lat (msec) : 100=21.94%, 250=4.79%, 500=0.07% cpu : usr=0.07%, sys=5.40%, ctx=6417, majf=0, minf=20 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=144909: Sun Sep 13 08:08:24 2026 read: IOPS=13, BW=52.7KiB/s (53.9kB/s)(5940KiB/112789msec) clat (usec): min=34, max=629489, avg=36679.35, stdev=33659.57 lat (usec): min=34, max=629490, avg=36681.49, stdev=33659.33 clat percentiles (usec): | 1.00th=[ 54], 5.00th=[ 65], 10.00th=[ 102], 20.00th=[ 16909], | 30.00th=[ 21103], 40.00th=[ 25822], 50.00th=[ 30016], 60.00th=[ 36439], | 70.00th=[ 44303], 80.00th=[ 54789], 90.00th=[ 70779], 95.00th=[ 86508], | 99.00th=[122160], 99.50th=[152044], 99.90th=[442500], 99.95th=[633340], | 99.99th=[633340] bw ( KiB/s): min= 6, max= 119, per=24.96%, avg=52.67, stdev=22.24, samples=220 iops : min= 1, max= 29, avg=12.52, stdev= 5.61, samples=220 write: IOPS=14, BW=56.3KiB/s (57.6kB/s)(6348KiB/112789msec); 0 zone resets clat (usec): min=806, max=325173, avg=36659.69, stdev=38272.31 lat (usec): min=807, max=325175, avg=36665.21, stdev=38269.31 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1205], 10.00th=[ 1369], 20.00th=[ 3326], | 30.00th=[ 7177], 40.00th=[ 15926], 50.00th=[ 25822], 60.00th=[ 36439], | 70.00th=[ 48497], 80.00th=[ 65799], 90.00th=[ 88605], 95.00th=[112722], | 99.00th=[154141], 99.50th=[183501], 99.90th=[291505], 99.95th=[325059], | 99.99th=[325059] bw ( KiB/s): min= 15, max= 126, per=25.31%, avg=55.95, stdev=22.49, samples=221 iops : min= 3, max= 31, avg=13.33, stdev= 5.68, samples=221 lat (usec) : 50=0.39%, 100=4.36%, 250=0.46%, 500=0.07%, 750=0.10% lat (usec) : 1000=0.23% lat (msec) : 2=7.19%, 4=4.10%, 10=7.00%, 20=12.17%, 50=37.24% lat (msec) : 100=21.71%, 250=4.79%, 500=0.16%, 750=0.03% cpu : usr=0.08%, sys=5.43%, ctx=6414, majf=0, minf=18 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144910: Sun Sep 13 08:08:24 2026 read: IOPS=13, BW=53.7KiB/s (55.0kB/s)(6028KiB/112210msec) clat (usec): min=27, max=287522, avg=34470.84, stdev=26699.10 lat (usec): min=27, max=287523, avg=34475.40, stdev=26709.67 clat percentiles (usec): | 1.00th=[ 42], 5.00th=[ 61], 10.00th=[ 69], 20.00th=[ 14877], | 30.00th=[ 20841], 40.00th=[ 24773], 50.00th=[ 29754], 60.00th=[ 35914], | 70.00th=[ 43254], 80.00th=[ 53740], 90.00th=[ 67634], 95.00th=[ 80217], | 99.00th=[119014], 99.50th=[135267], 99.90th=[227541], 99.95th=[287310], | 99.99th=[287310] bw ( KiB/s): min= 7, max= 135, per=25.45%, avg=53.71, stdev=22.96, samples=219 iops : min= 1, max= 33, avg=12.77, stdev= 5.79, samples=219 write: IOPS=13, BW=55.8KiB/s (57.1kB/s)(6260KiB/112210msec); 0 zone resets clat (usec): min=845, max=685129, avg=38424.86, stdev=41984.28 lat (usec): min=847, max=685133, avg=38426.87, stdev=41984.28 clat percentiles (usec): | 1.00th=[ 1090], 5.00th=[ 1221], 10.00th=[ 1582], 20.00th=[ 4228], | 30.00th=[ 8848], 40.00th=[ 18482], 50.00th=[ 28181], 60.00th=[ 39060], | 70.00th=[ 50594], 80.00th=[ 64226], 90.00th=[ 89654], 95.00th=[109577], | 99.00th=[162530], 99.50th=[175113], 99.90th=[476054], 99.95th=[683672], | 99.99th=[683672] bw ( KiB/s): min= 7, max= 142, per=25.14%, avg=55.55, stdev=22.18, samples=220 iops : min= 1, max= 35, avg=13.23, stdev= 5.59, samples=220 lat (usec) : 50=0.72%, 100=5.89%, 250=0.39%, 500=0.03%, 750=0.07% lat (usec) : 1000=0.10% lat (msec) : 2=6.12%, 4=3.52%, 10=6.97%, 20=11.07%, 50=38.02% lat (msec) : 100=22.56%, 250=4.43%, 500=0.10%, 750=0.03% cpu : usr=0.07%, sys=5.29%, ctx=6374, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144911: Sun Sep 13 08:08:24 2026 read: IOPS=13, BW=53.2KiB/s (54.5kB/s)(6052KiB/113679msec) clat (usec): min=34, max=282590, avg=36006.55, stdev=27809.69 lat (usec): min=34, max=282591, avg=36015.17, stdev=27814.01 clat percentiles (usec): | 1.00th=[ 45], 5.00th=[ 63], 10.00th=[ 85], 20.00th=[ 15664], | 30.00th=[ 21103], 40.00th=[ 25297], 50.00th=[ 30540], 60.00th=[ 36963], | 70.00th=[ 44827], 80.00th=[ 54789], 90.00th=[ 71828], 95.00th=[ 85459], | 99.00th=[124257], 99.50th=[141558], 99.90th=[231736], 99.95th=[283116], | 99.99th=[283116] bw ( KiB/s): min= 8, max= 134, per=25.13%, avg=53.03, stdev=20.65, samples=222 iops : min= 2, max= 33, avg=12.60, stdev= 5.22, samples=222 write: IOPS=13, BW=54.9KiB/s (56.2kB/s)(6236KiB/113679msec); 0 zone resets clat (usec): min=836, max=732872, avg=37852.31, stdev=41685.67 lat (usec): min=837, max=732874, avg=37856.19, stdev=41684.33 clat percentiles (usec): | 1.00th=[ 1074], 5.00th=[ 1188], 10.00th=[ 1369], 20.00th=[ 3359], | 30.00th=[ 7111], 40.00th=[ 17171], 50.00th=[ 28705], 60.00th=[ 38536], | 70.00th=[ 51119], 80.00th=[ 65274], 90.00th=[ 89654], 95.00th=[111674], | 99.00th=[158335], 99.50th=[183501], 99.90th=[278922], 99.95th=[734004], | 99.99th=[734004] bw ( KiB/s): min= 7, max= 104, per=24.75%, avg=54.69, stdev=20.26, samples=222 iops : min= 1, max= 26, avg=13.00, stdev= 5.10, samples=222 lat (usec) : 50=0.59%, 100=4.72%, 250=0.62%, 500=0.13%, 1000=0.20% lat (msec) : 2=6.87%, 4=4.43%, 10=6.64%, 20=11.36%, 50=36.65% lat (msec) : 100=22.98%, 250=4.69%, 500=0.10%, 750=0.03% cpu : usr=0.07%, sys=5.16%, ctx=6236, 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=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=211KiB/s (216kB/s), 52.7KiB/s-53.7KiB/s (53.9kB/s-55.0kB/s), io=23.4MiB (24.6MB), run=112102-113679msec WRITE: bw=221KiB/s (226kB/s), 54.9KiB/s-56.3KiB/s (56.2kB/s-57.6kB/s), io=24.6MiB (25.7MB), run=112102-113679msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144903: Sun Sep 13 08:10:36 2026 read: IOPS=6, BW=24.4KiB/s (24.0kB/s)(5992KiB/245472msec) clat (msec): min=4, max=494, avg=31.60, stdev=33.11 lat (msec): min=4, max=494, avg=31.60, stdev=33.11 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 18], 50.00th=[ 22], 60.00th=[ 25], | 70.00th=[ 32], 80.00th=[ 43], 90.00th=[ 65], 95.00th=[ 93], | 99.00th=[ 159], 99.50th=[ 218], 99.90th=[ 380], 99.95th=[ 493], | 99.99th=[ 493] bw ( KiB/s): min= 7, max= 96, per=27.38%, avg=26.56, stdev=17.38, samples=437 iops : min= 1, max= 24, avg= 6.02, stdev= 4.37, samples=437 write: IOPS=6, BW=25.6KiB/s (26.3kB/s)(6296KiB/245472msec); 0 zone resets clat (msec): min=28, max=563, avg=125.66, stdev=53.04 lat (msec): min=28, max=563, avg=125.66, stdev=53.04 clat percentiles (msec): | 1.00th=[ 43], 5.00th=[ 58], 10.00th=[ 69], 20.00th=[ 83], | 30.00th=[ 94], 40.00th=[ 106], 50.00th=[ 117], 60.00th=[ 130], | 70.00th=[ 144], 80.00th=[ 163], 90.00th=[ 190], 95.00th=[ 220], | 99.00th=[ 288], 99.50th=[ 317], 99.90th=[ 550], 99.95th=[ 567], | 99.99th=[ 567] bw ( KiB/s): min= 7, max= 63, per=24.91%, avg=25.16, stdev=10.39, samples=483 iops : min= 1, max= 15, avg= 5.66, stdev= 2.66, samples=483 lat (msec) : 10=4.72%, 20=18.33%, 50=19.34%, 100=22.53%, 250=33.56% lat (msec) : 500=1.46%, 750=0.07% cpu : usr=0.04%, sys=1.15%, ctx=5132, 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=144904: Sun Sep 13 08:10:36 2026 read: IOPS=6, BW=24.1KiB/s (24.7kB/s)(5940KiB/246602msec) clat (msec): min=5, max=704, avg=31.68, stdev=35.83 lat (msec): min=5, max=704, avg=31.68, stdev=35.83 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 13], | 30.00th=[ 15], 40.00th=[ 18], 50.00th=[ 21], 60.00th=[ 25], | 70.00th=[ 31], 80.00th=[ 41], 90.00th=[ 66], 95.00th=[ 93], | 99.00th=[ 174], 99.50th=[ 220], 99.90th=[ 271], 99.95th=[ 701], | 99.99th=[ 701] bw ( KiB/s): min= 7, max= 102, per=27.59%, avg=26.76, stdev=17.77, samples=429 iops : min= 1, max= 25, avg= 6.05, stdev= 4.49, samples=429 write: IOPS=6, BW=25.7KiB/s (26.4kB/s)(6348KiB/246602msec); 0 zone resets clat (msec): min=32, max=519, avg=125.54, stdev=55.39 lat (msec): min=32, max=519, avg=125.54, stdev=55.39 clat percentiles (msec): | 1.00th=[ 46], 5.00th=[ 59], 10.00th=[ 68], 20.00th=[ 81], | 30.00th=[ 92], 40.00th=[ 104], 50.00th=[ 114], 60.00th=[ 128], | 70.00th=[ 144], 80.00th=[ 163], 90.00th=[ 201], 95.00th=[ 228], | 99.00th=[ 309], 99.50th=[ 326], 99.90th=[ 460], 99.95th=[ 518], | 99.99th=[ 518] bw ( KiB/s): min= 7, max= 63, per=25.01%, avg=25.26, stdev=10.46, samples=484 iops : min= 1, max= 15, avg= 5.69, stdev= 2.66, samples=484 lat (msec) : 10=5.40%, 20=17.68%, 50=18.72%, 100=23.80%, 250=32.55% lat (msec) : 500=1.79%, 750=0.07% cpu : usr=0.05%, sys=1.20%, ctx=5050, 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=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=144905: Sun Sep 13 08:10:36 2026 read: IOPS=6, BW=24.5KiB/s (25.1kB/s)(6028KiB/246110msec) clat (msec): min=5, max=372, avg=31.94, stdev=29.44 lat (msec): min=5, max=372, avg=31.94, stdev=29.44 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 19], 50.00th=[ 22], 60.00th=[ 26], | 70.00th=[ 33], 80.00th=[ 46], 90.00th=[ 68], 95.00th=[ 91], | 99.00th=[ 142], 99.50th=[ 163], 99.90th=[ 249], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 7, max= 96, per=27.12%, avg=26.31, stdev=17.12, samples=442 iops : min= 1, max= 24, avg= 5.95, stdev= 4.31, samples=442 write: IOPS=6, BW=25.4KiB/s (26.0kB/s)(6260KiB/246110msec); 0 zone resets clat (msec): min=41, max=776, avg=126.29, stdev=54.62 lat (msec): min=41, max=776, avg=126.30, stdev=54.62 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 61], 10.00th=[ 70], 20.00th=[ 82], | 30.00th=[ 94], 40.00th=[ 105], 50.00th=[ 117], 60.00th=[ 130], | 70.00th=[ 144], 80.00th=[ 165], 90.00th=[ 194], 95.00th=[ 224], | 99.00th=[ 309], 99.50th=[ 321], 99.90th=[ 460], 99.95th=[ 776], | 99.99th=[ 776] bw ( KiB/s): min= 7, max= 55, per=24.61%, avg=24.86, stdev=10.35, samples=485 iops : min= 1, max= 13, avg= 5.59, stdev= 2.64, samples=485 lat (msec) : 10=4.23%, 20=17.97%, 50=18.91%, 100=24.51%, 250=33.11% lat (msec) : 500=1.24%, 1000=0.03% cpu : usr=0.04%, sys=1.15%, ctx=4954, 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=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=144906: Sun Sep 13 08:10:36 2026 read: IOPS=6, BW=24.8KiB/s (25.4kB/s)(6052KiB/244375msec) clat (msec): min=4, max=261, avg=31.95, stdev=29.86 lat (msec): min=4, max=261, avg=31.95, stdev=29.86 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 19], 50.00th=[ 22], 60.00th=[ 26], | 70.00th=[ 32], 80.00th=[ 45], 90.00th=[ 67], 95.00th=[ 92], | 99.00th=[ 150], 99.50th=[ 169], 99.90th=[ 249], 99.95th=[ 262], | 99.99th=[ 262] bw ( KiB/s): min= 7, max= 103, per=27.76%, avg=26.93, stdev=17.73, samples=435 iops : min= 1, max= 25, avg= 6.10, stdev= 4.46, samples=435 write: IOPS=6, BW=25.5KiB/s (26.1kB/s)(6236KiB/244375msec); 0 zone resets clat (msec): min=33, max=809, avg=125.52, stdev=57.22 lat (msec): min=33, max=809, avg=125.53, stdev=57.22 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 59], 10.00th=[ 68], 20.00th=[ 82], | 30.00th=[ 92], 40.00th=[ 104], 50.00th=[ 115], 60.00th=[ 127], | 70.00th=[ 140], 80.00th=[ 163], 90.00th=[ 194], 95.00th=[ 232], | 99.00th=[ 305], 99.50th=[ 334], 99.90th=[ 567], 99.95th=[ 810], | 99.99th=[ 810] bw ( KiB/s): min= 7, max= 71, per=24.77%, avg=25.02, stdev=10.47, samples=481 iops : min= 1, max= 17, avg= 5.63, stdev= 2.66, samples=481 lat (msec) : 10=4.62%, 20=18.55%, 50=18.23%, 100=24.51%, 250=32.49% lat (msec) : 500=1.50%, 750=0.07%, 1000=0.03% cpu : usr=0.05%, sys=1.16%, ctx=5092, 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=97.4KiB/s (99.7kB/s), 24.1KiB/s-24.8KiB/s (24.7kB/s-25.4kB/s), io=23.4MiB (24.6MB), run=244375-246602msec WRITE: bw=102KiB/s (104kB/s), 25.4KiB/s-25.7KiB/s (26.0kB/s-26.4kB/s), io=24.6MiB (25.7MB), run=244375-246602msec 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=144960: Sun Sep 13 08:11:13 2026 read: IOPS=14, BW=225KiB/s (231kB/s)(5920KiB/26282msec) clat (usec): min=39, max=204696, avg=36560.98, stdev=31834.61 lat (usec): min=39, max=204698, avg=36568.02, stdev=31843.89 clat percentiles (usec): | 1.00th=[ 43], 5.00th=[ 62], 10.00th=[ 70], 20.00th=[ 110], | 30.00th=[ 20317], 40.00th=[ 28967], 50.00th=[ 34341], 60.00th=[ 41157], | 70.00th=[ 49021], 80.00th=[ 58459], 90.00th=[ 73925], 95.00th=[ 94897], | 99.00th=[131597], 99.50th=[196084], 99.90th=[204473], 99.95th=[204473], | 99.99th=[204473] bw ( KiB/s): min= 93, max= 480, per=25.57%, avg=223.49, stdev=96.85, samples=51 iops : min= 5, max= 30, avg=13.29, stdev= 6.16, samples=51 write: IOPS=15, BW=242KiB/s (248kB/s)(6368KiB/26282msec); 0 zone resets clat (usec): min=1421, max=297244, avg=31589.15, stdev=36022.08 lat (usec): min=1425, max=297249, avg=31595.54, stdev=36019.54 clat percentiles (usec): | 1.00th=[ 1500], 5.00th=[ 1844], 10.00th=[ 2311], 20.00th=[ 4424], | 30.00th=[ 6783], 40.00th=[ 10159], 50.00th=[ 17433], 60.00th=[ 27919], | 70.00th=[ 40109], 80.00th=[ 56886], 90.00th=[ 82314], 95.00th=[106431], | 99.00th=[156238], 99.50th=[164627], 99.90th=[295699], 99.95th=[295699], | 99.99th=[295699] bw ( KiB/s): min= 64, max= 506, per=26.37%, avg=242.57, stdev=87.28, samples=51 iops : min= 4, max= 31, avg=14.49, stdev= 5.44, samples=51 lat (usec) : 50=1.04%, 100=8.20%, 250=1.82%, 500=0.52%, 750=0.26% lat (usec) : 1000=0.26% lat (msec) : 2=4.56%, 4=5.34%, 10=10.94%, 20=8.20%, 50=32.94% lat (msec) : 100=21.22%, 250=4.56%, 500=0.13% cpu : usr=0.08%, sys=5.67%, ctx=1353, 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=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=144961: Sun Sep 13 08:11:13 2026 read: IOPS=13, BW=221KiB/s (226kB/s)(5744KiB/26015msec) clat (usec): min=36, max=372636, avg=35450.43, stdev=34029.90 lat (usec): min=37, max=372638, avg=35452.17, stdev=34029.78 clat percentiles (usec): | 1.00th=[ 43], 5.00th=[ 56], 10.00th=[ 67], 20.00th=[ 82], | 30.00th=[ 21365], 40.00th=[ 26346], 50.00th=[ 32113], 60.00th=[ 38536], | 70.00th=[ 46400], 80.00th=[ 57410], 90.00th=[ 71828], 95.00th=[ 82314], | 99.00th=[128451], 99.50th=[185598], 99.90th=[371196], 99.95th=[371196], | 99.99th=[371196] bw ( KiB/s): min= 31, max= 416, per=25.12%, avg=219.57, stdev=85.01, samples=51 iops : min= 1, max= 26, avg=13.06, stdev= 5.43, samples=51 write: IOPS=15, BW=252KiB/s (258kB/s)(6544KiB/26015msec); 0 zone resets clat (usec): min=1370, max=250580, avg=32032.92, stdev=35873.92 lat (usec): min=1371, max=250582, avg=32039.29, stdev=35872.26 clat percentiles (usec): | 1.00th=[ 1483], 5.00th=[ 1762], 10.00th=[ 2868], 20.00th=[ 4948], | 30.00th=[ 7570], 40.00th=[ 11469], 50.00th=[ 18220], 60.00th=[ 27657], | 70.00th=[ 39584], 80.00th=[ 56361], 90.00th=[ 79168], 95.00th=[105382], | 99.00th=[147850], 99.50th=[189793], 99.90th=[250610], 99.95th=[250610], | 99.99th=[250610] bw ( KiB/s): min= 63, max= 477, per=27.18%, avg=250.02, stdev=94.55, samples=51 iops : min= 3, max= 29, avg=14.98, stdev= 5.98, samples=51 lat (usec) : 50=1.43%, 100=8.98%, 250=0.52%, 500=0.26% lat (msec) : 2=3.65%, 4=4.95%, 10=11.59%, 20=9.77%, 50=34.38% lat (msec) : 100=19.66%, 250=4.56%, 500=0.26% cpu : usr=0.10%, sys=5.52%, ctx=1376, 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=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=144962: Sun Sep 13 08:11:13 2026 read: IOPS=14, BW=228KiB/s (234kB/s)(6256KiB/27388msec) clat (usec): min=33, max=175289, avg=35795.44, stdev=30500.60 lat (usec): min=34, max=175289, avg=35796.81, stdev=30500.58 clat percentiles (usec): | 1.00th=[ 40], 5.00th=[ 57], 10.00th=[ 64], 20.00th=[ 90], | 30.00th=[ 19268], 40.00th=[ 25560], 50.00th=[ 31589], 60.00th=[ 42206], | 70.00th=[ 49546], 80.00th=[ 60031], 90.00th=[ 74974], 95.00th=[ 87557], | 99.00th=[135267], 99.50th=[147850], 99.90th=[175113], 99.95th=[175113], | 99.99th=[175113] bw ( KiB/s): min= 31, max= 436, per=26.13%, avg=228.37, stdev=78.65, samples=54 iops : min= 1, max= 27, avg=13.61, stdev= 5.02, samples=54 write: IOPS=13, BW=220KiB/s (226kB/s)(6032KiB/27388msec); 0 zone resets clat (usec): min=1420, max=326558, avg=35352.22, stdev=39753.48 lat (usec): min=1423, max=326561, avg=35354.96, stdev=39753.80 clat percentiles (usec): | 1.00th=[ 1565], 5.00th=[ 1827], 10.00th=[ 2802], 20.00th=[ 5014], | 30.00th=[ 8455], 40.00th=[ 12387], 50.00th=[ 22152], 60.00th=[ 34341], | 70.00th=[ 43779], 80.00th=[ 61080], 90.00th=[ 87557], 95.00th=[101188], | 99.00th=[175113], 99.50th=[270533], 99.90th=[325059], 99.95th=[325059], | 99.99th=[325059] bw ( KiB/s): min= 63, max= 474, per=23.90%, avg=219.87, stdev=96.63, samples=54 iops : min= 3, max= 29, avg=13.06, stdev= 6.14, samples=54 lat (usec) : 50=1.69%, 100=9.77%, 250=1.04%, 500=0.13%, 750=0.26% lat (usec) : 1000=0.13% lat (msec) : 2=3.91%, 4=3.91%, 10=10.03%, 20=9.11%, 50=31.51% lat (msec) : 100=24.48%, 250=3.78%, 500=0.26% cpu : usr=0.11%, sys=5.62%, ctx=1373, 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=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=144963: Sun Sep 13 08:11:13 2026 read: IOPS=14, BW=236KiB/s (242kB/s)(6032KiB/25557msec) clat (usec): min=34, max=193629, avg=35393.63, stdev=29559.70 lat (usec): min=35, max=193631, avg=35394.95, stdev=29559.72 clat percentiles (usec): | 1.00th=[ 40], 5.00th=[ 56], 10.00th=[ 64], 20.00th=[ 82], | 30.00th=[ 18220], 40.00th=[ 27395], 50.00th=[ 34866], 60.00th=[ 41157], | 70.00th=[ 48497], 80.00th=[ 56886], 90.00th=[ 72877], 95.00th=[ 86508], | 99.00th=[114820], 99.50th=[168821], 99.90th=[193987], 99.95th=[193987], | 99.99th=[193987] bw ( KiB/s): min= 63, max= 442, per=26.82%, avg=234.44, stdev=87.29, samples=50 iops : min= 3, max= 27, avg=13.98, stdev= 5.52, samples=50 write: IOPS=15, BW=245KiB/s (251kB/s)(6256KiB/25557msec); 0 zone resets clat (usec): min=1236, max=222049, avg=30796.00, stdev=35811.65 lat (usec): min=1237, max=222052, avg=30811.18, stdev=35802.99 clat percentiles (usec): | 1.00th=[ 1516], 5.00th=[ 1827], 10.00th=[ 2507], 20.00th=[ 4883], | 30.00th=[ 6652], 40.00th=[ 9634], 50.00th=[ 16057], 60.00th=[ 25560], | 70.00th=[ 36439], 80.00th=[ 54789], 90.00th=[ 76022], 95.00th=[ 96994], | 99.00th=[181404], 99.50th=[193987], 99.90th=[221250], 99.95th=[221250], | 99.99th=[221250] bw ( KiB/s): min= 63, max= 446, per=26.65%, avg=245.14, stdev=88.26, samples=50 iops : min= 3, max= 27, avg=14.66, stdev= 5.56, samples=50 lat (usec) : 50=1.82%, 100=8.72%, 250=0.91%, 500=0.26% lat (msec) : 2=4.43%, 4=4.95%, 10=12.24%, 20=10.03%, 50=31.38% lat (msec) : 100=21.88%, 250=3.39% cpu : usr=0.10%, sys=5.87%, ctx=1342, 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=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=875KiB/s (896kB/s), 221KiB/s-236KiB/s (226kB/s-242kB/s), io=23.4MiB (24.5MB), run=25557-27388msec WRITE: bw=920KiB/s (942kB/s), 220KiB/s-252KiB/s (226kB/s-258kB/s), io=24.6MiB (25.8MB), run=25557-27388msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144964: Sun Sep 13 08:11:52 2026 read: IOPS=5, BW=89.2KiB/s (91.4kB/s)(5920KiB/66358msec) clat (msec): min=6, max=350, avg=38.08, stdev=42.36 lat (msec): min=6, max=350, avg=38.09, stdev=42.36 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 23], 60.00th=[ 28], | 70.00th=[ 34], 80.00th=[ 47], 90.00th=[ 84], 95.00th=[ 127], | 99.00th=[ 230], 99.50th=[ 279], 99.90th=[ 351], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 30, max= 351, per=27.31%, avg=98.31, stdev=67.21, samples=118 iops : min= 1, max= 21, avg= 5.35, stdev= 4.24, samples=118 write: IOPS=5, BW=95.0KiB/s (98.3kB/s)(6368KiB/66358msec); 0 zone resets clat (msec): min=37, max=451, avg=131.16, stdev=61.55 lat (msec): min=37, max=451, avg=131.17, stdev=61.55 clat percentiles (msec): | 1.00th=[ 52], 5.00th=[ 61], 10.00th=[ 72], 20.00th=[ 83], | 30.00th=[ 94], 40.00th=[ 106], 50.00th=[ 116], 60.00th=[ 130], | 70.00th=[ 144], 80.00th=[ 174], 90.00th=[ 209], 95.00th=[ 266], | 99.00th=[ 330], 99.50th=[ 414], 99.90th=[ 451], 99.95th=[ 451], | 99.99th=[ 451] bw ( KiB/s): min= 27, max= 223, per=25.44%, avg=96.42, stdev=42.50, samples=130 iops : min= 1, max= 13, avg= 5.23, stdev= 2.70, samples=130 lat (msec) : 10=3.26%, 20=17.19%, 50=18.75%, 100=23.18%, 250=34.38% lat (msec) : 500=3.26% cpu : usr=0.04%, sys=1.24%, ctx=1236, 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=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=144965: Sun Sep 13 08:11:52 2026 read: IOPS=5, BW=86.6KiB/s (88.7kB/s)(5744KiB/66314msec) clat (msec): min=7, max=295, avg=36.00, stdev=37.66 lat (msec): min=7, max=295, avg=36.00, stdev=37.66 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 17], 40.00th=[ 21], 50.00th=[ 24], 60.00th=[ 28], | 70.00th=[ 36], 80.00th=[ 48], 90.00th=[ 70], 95.00th=[ 108], | 99.00th=[ 218], 99.50th=[ 247], 99.90th=[ 296], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 26, max= 320, per=27.86%, avg=100.28, stdev=64.55, samples=113 iops : min= 1, max= 20, avg= 5.48, stdev= 4.09, samples=113 write: IOPS=6, BW=98.7KiB/s (101kB/s)(6544KiB/66314msec); 0 zone resets clat (msec): min=34, max=401, avg=130.42, stdev=63.01 lat (msec): min=34, max=401, avg=130.43, stdev=63.02 clat percentiles (msec): | 1.00th=[ 45], 5.00th=[ 61], 10.00th=[ 70], 20.00th=[ 84], | 30.00th=[ 94], 40.00th=[ 104], 50.00th=[ 113], 60.00th=[ 125], | 70.00th=[ 142], 80.00th=[ 167], 90.00th=[ 226], 95.00th=[ 271], | 99.00th=[ 330], 99.50th=[ 363], 99.90th=[ 401], 99.95th=[ 401], | 99.99th=[ 401] bw ( KiB/s): min= 31, max= 224, per=26.33%, avg=99.81, stdev=43.39, samples=129 iops : min= 1, max= 14, avg= 5.45, stdev= 2.77, samples=129 lat (msec) : 10=2.47%, 20=16.28%, 50=20.05%, 100=25.00%, 250=32.42% lat (msec) : 500=3.78% cpu : usr=0.04%, sys=1.21%, ctx=1297, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=144966: Sun Sep 13 08:11:52 2026 read: IOPS=6, BW=97.6KiB/s (99.0kB/s)(6256KiB/64080msec) clat (msec): min=7, max=355, avg=34.22, stdev=34.27 lat (msec): min=7, max=355, avg=34.23, stdev=34.26 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 23], 60.00th=[ 28], | 70.00th=[ 35], 80.00th=[ 47], 90.00th=[ 72], 95.00th=[ 100], | 99.00th=[ 155], 99.50th=[ 292], 99.90th=[ 355], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 31, max= 317, per=29.55%, avg=106.37, stdev=69.92, samples=116 iops : min= 1, max= 19, avg= 5.86, stdev= 4.39, samples=116 write: IOPS=5, BW=94.1KiB/s (96.4kB/s)(6032KiB/64080msec); 0 zone resets clat (msec): min=50, max=427, avg=134.36, stdev=63.84 lat (msec): min=50, max=427, avg=134.36, stdev=63.84 clat percentiles (msec): | 1.00th=[ 53], 5.00th=[ 63], 10.00th=[ 70], 20.00th=[ 84], | 30.00th=[ 97], 40.00th=[ 108], 50.00th=[ 121], 60.00th=[ 136], | 70.00th=[ 148], 80.00th=[ 171], 90.00th=[ 218], 95.00th=[ 271], | 99.00th=[ 355], 99.50th=[ 388], 99.90th=[ 426], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 31, max= 223, per=24.77%, avg=93.89, stdev=40.87, samples=125 iops : min= 1, max= 13, avg= 5.08, stdev= 2.61, samples=125 lat (msec) : 10=3.12%, 20=18.75%, 50=19.79%, 100=23.44%, 250=31.64% lat (msec) : 500=3.26% cpu : usr=0.05%, sys=1.24%, ctx=1304, 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=144967: Sun Sep 13 08:11:52 2026 read: IOPS=5, BW=92.9KiB/s (95.1kB/s)(6032KiB/64957msec) clat (msec): min=6, max=294, avg=37.82, stdev=37.40 lat (msec): min=6, max=294, avg=37.82, stdev=37.40 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 25], 60.00th=[ 30], | 70.00th=[ 38], 80.00th=[ 54], 90.00th=[ 84], 95.00th=[ 113], | 99.00th=[ 190], 99.50th=[ 245], 99.90th=[ 296], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 31, max= 319, per=28.23%, avg=101.62, stdev=66.34, samples=116 iops : min= 1, max= 19, avg= 5.56, stdev= 4.21, samples=116 write: IOPS=6, BW=96.3KiB/s (98.6kB/s)(6256KiB/64957msec); 0 zone resets clat (msec): min=36, max=434, avg=129.51, stdev=62.40 lat (msec): min=36, max=434, avg=129.51, stdev=62.40 clat percentiles (msec): | 1.00th=[ 49], 5.00th=[ 62], 10.00th=[ 69], 20.00th=[ 82], | 30.00th=[ 91], 40.00th=[ 105], 50.00th=[ 117], 60.00th=[ 127], | 70.00th=[ 144], 80.00th=[ 169], 90.00th=[ 209], 95.00th=[ 245], | 99.00th=[ 363], 99.50th=[ 405], 99.90th=[ 435], 99.95th=[ 435], | 99.99th=[ 435] bw ( KiB/s): min= 31, max= 223, per=25.50%, avg=96.63, stdev=43.05, samples=127 iops : min= 1, max= 13, avg= 5.25, stdev= 2.76, samples=127 lat (msec) : 10=2.86%, 20=16.02%, 50=20.31%, 100=25.39%, 250=32.94% lat (msec) : 500=2.47% cpu : usr=0.04%, sys=1.22%, ctx=1260, 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=361KiB/s (370kB/s), 86.6KiB/s-97.6KiB/s (88.7kB/s-99.0kB/s), io=23.4MiB (24.5MB), run=64080-66358msec WRITE: bw=380KiB/s (389kB/s), 94.1KiB/s-98.7KiB/s (96.4kB/s-101kB/s), io=24.6MiB (25.8MB), run=64080-66358msec 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=144992: Sun Sep 13 08:12:07 2026 read: IOPS=1, BW=1897KiB/s (1943kB/s)(7168KiB/3778msec) clat (usec): min=693, max=668485, avg=274213.78, stdev=260091.85 lat (usec): min=695, max=668488, avg=274215.56, stdev=260092.28 clat percentiles (usec): | 1.00th=[ 693], 5.00th=[ 693], 10.00th=[ 693], 20.00th=[ 3589], | 30.00th=[164627], 40.00th=[164627], 50.00th=[168821], 60.00th=[375391], | 70.00th=[375391], 80.00th=[541066], 90.00th=[666895], 95.00th=[666895], | 99.00th=[666895], 99.50th=[666895], 99.90th=[666895], 99.95th=[666895], | 99.99th=[666895] bw ( KiB/s): min= 1996, max= 3984, per=72.43%, avg=2997.75, stdev=1129.77, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 write: IOPS=1, BW=1355KiB/s (1388kB/s)(5120KiB/3778msec); 0 zone resets clat (msec): min=193, max=413, avg=311.16, stdev=83.80 lat (msec): min=193, max=413, avg=311.28, stdev=83.78 clat percentiles (msec): | 1.00th=[ 194], 5.00th=[ 194], 10.00th=[ 194], 20.00th=[ 194], | 30.00th=[ 292], 40.00th=[ 292], 50.00th=[ 292], 60.00th=[ 292], | 70.00th=[ 368], 80.00th=[ 368], 90.00th=[ 414], 95.00th=[ 414], | 99.00th=[ 414], 99.50th=[ 414], 99.90th=[ 414], 99.95th=[ 414], | 99.99th=[ 414] bw ( KiB/s): min= 1980, max= 4007, per=45.92%, avg=2661.00, stdev=1165.70, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (usec) : 750=8.33% lat (msec) : 4=8.33%, 250=25.00%, 500=41.67%, 750=16.67% cpu : usr=0.05%, sys=11.31%, ctx=186, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144993: Sun Sep 13 08:12:07 2026 read: IOPS=0, BW=414KiB/s (424kB/s)(2048KiB/4947msec) clat (msec): min=294, max=416, avg=355.24, stdev=86.34 lat (msec): min=294, max=416, avg=355.24, stdev=86.34 clat percentiles (msec): | 1.00th=[ 296], 5.00th=[ 296], 10.00th=[ 296], 20.00th=[ 296], | 30.00th=[ 296], 40.00th=[ 296], 50.00th=[ 296], 60.00th=[ 418], | 70.00th=[ 418], 80.00th=[ 418], 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= 1984, max= 2003, per=48.16%, avg=1993.50, stdev=13.44, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2070KiB/s (2120kB/s)(10.0MiB/4947msec); 0 zone resets clat (msec): min=152, max=814, avg=388.49, stdev=233.34 lat (msec): min=152, max=814, avg=388.63, stdev=233.30 clat percentiles (msec): | 1.00th=[ 153], 5.00th=[ 153], 10.00th=[ 153], 20.00th=[ 174], | 30.00th=[ 226], 40.00th=[ 288], 50.00th=[ 296], 60.00th=[ 334], | 70.00th=[ 347], 80.00th=[ 481], 90.00th=[ 776], 95.00th=[ 818], | 99.00th=[ 818], 99.50th=[ 818], 99.90th=[ 818], 99.95th=[ 818], | 99.99th=[ 818] bw ( KiB/s): min= 1980, max= 4031, per=46.26%, avg=2680.67, stdev=1028.15, samples=6 iops : min= 1, max= 3, avg= 1.67, stdev= 1.03, samples=6 lat (msec) : 250=25.00%, 500=58.33%, 1000=16.67% cpu : usr=0.04%, sys=11.91%, ctx=184, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144994: Sun Sep 13 08:12:07 2026 read: IOPS=1, BW=1952KiB/s (1999kB/s)(6144KiB/3147msec) clat (usec): min=1197, max=314549, avg=104484.80, stdev=146214.60 lat (usec): min=1273, max=314551, avg=104586.89, stdev=146129.90 clat percentiles (usec): | 1.00th=[ 1205], 5.00th=[ 1205], 10.00th=[ 1205], 20.00th=[ 1270], | 30.00th=[ 1270], 40.00th=[ 1631], 50.00th=[ 1631], 60.00th=[ 40109], | 70.00th=[267387], 80.00th=[267387], 90.00th=[312476], 95.00th=[312476], | 99.00th=[312476], 99.50th=[312476], 99.90th=[312476], 99.95th=[312476], | 99.99th=[312476] bw ( KiB/s): min= 1980, max= 2043, per=48.60%, avg=2011.50, stdev=44.55, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1952KiB/s (1999kB/s)(6144KiB/3147msec); 0 zone resets clat (msec): min=133, max=1024, avg=375.29, stdev=337.71 lat (msec): min=134, max=1024, avg=375.49, stdev=337.76 clat percentiles (msec): | 1.00th=[ 134], 5.00th=[ 134], 10.00th=[ 134], 20.00th=[ 171], | 30.00th=[ 171], 40.00th=[ 184], 50.00th=[ 184], 60.00th=[ 296], | 70.00th=[ 447], 80.00th=[ 447], 90.00th=[ 1028], 95.00th=[ 1028], | 99.00th=[ 1028], 99.50th=[ 1028], 99.90th=[ 1028], 99.95th=[ 1028], | 99.99th=[ 1028] bw ( KiB/s): min= 1514, max= 3968, per=47.30%, avg=2741.00, stdev=1735.24, samples=2 iops : min= 1, max= 3, avg= 2.00, stdev= 1.41, samples=2 lat (msec) : 2=25.00%, 50=8.33%, 250=25.00%, 500=33.33%, 2000=8.33% cpu : usr=0.00%, sys=13.16%, ctx=133, 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=144995: Sun Sep 13 08:12:07 2026 read: IOPS=1, BW=1824KiB/s (1868kB/s)(5120KiB/2807msec) clat (usec): min=696, max=317785, avg=164911.67, stdev=151535.85 lat (usec): min=698, max=317787, avg=164913.68, stdev=151535.66 clat percentiles (usec): | 1.00th=[ 693], 5.00th=[ 693], 10.00th=[ 693], 20.00th=[ 693], | 30.00th=[ 2835], 40.00th=[ 2835], 50.00th=[242222], 60.00th=[242222], | 70.00th=[261096], 80.00th=[261096], 90.00th=[316670], 95.00th=[316670], | 99.00th=[316670], 99.50th=[316670], 99.90th=[316670], 99.95th=[316670], | 99.99th=[316670] bw ( KiB/s): min= 1984, max= 6131, per=98.03%, avg=4057.50, stdev=2932.37, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=2, BW=2554KiB/s (2615kB/s)(7168KiB/2807msec); 0 zone resets clat (msec): min=110, max=436, avg=275.66, stdev=128.59 lat (msec): min=111, max=436, avg=275.79, stdev=128.54 clat percentiles (msec): | 1.00th=[ 111], 5.00th=[ 111], 10.00th=[ 111], 20.00th=[ 167], | 30.00th=[ 203], 40.00th=[ 203], 50.00th=[ 232], 60.00th=[ 372], | 70.00th=[ 372], 80.00th=[ 409], 90.00th=[ 439], 95.00th=[ 439], | 99.00th=[ 439], 99.50th=[ 439], 99.90th=[ 439], 99.95th=[ 439], | 99.99th=[ 439] bw ( KiB/s): min= 1980, max= 4883, per=55.35%, avg=3207.75, stdev=1462.19, samples=4 iops : min= 1, max= 4, avg= 2.25, stdev= 1.50, samples=4 lat (usec) : 750=8.33% lat (msec) : 4=8.33%, 250=41.67%, 500=41.67% cpu : usr=0.07%, sys=21.06%, ctx=147, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=4140KiB/s (4239kB/s), 414KiB/s-1952KiB/s (424kB/s-1999kB/s), io=20.0MiB (20.0MB), run=2807-4947msec WRITE: bw=5796KiB/s (5935kB/s), 1355KiB/s-2554KiB/s (1388kB/s-2615kB/s), io=28.0MiB (29.4MB), run=2807-4947msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144988: Sun Sep 13 08:12:07 2026 read: IOPS=1, BW=1909KiB/s (1955kB/s)(7168KiB/3754msec) clat (msec): min=71, max=869, avg=285.88, stdev=306.85 lat (msec): min=71, max=869, avg=285.88, stdev=306.85 clat percentiles (msec): | 1.00th=[ 72], 5.00th=[ 72], 10.00th=[ 72], 20.00th=[ 87], | 30.00th=[ 96], 40.00th=[ 96], 50.00th=[ 113], 60.00th=[ 220], | 70.00th=[ 220], 80.00th=[ 550], 90.00th=[ 869], 95.00th=[ 869], | 99.00th=[ 869], 99.50th=[ 869], 99.90th=[ 869], 99.95th=[ 869], | 99.99th=[ 869] bw ( KiB/s): min= 1980, max= 3160, per=62.12%, avg=2227.00, stdev=521.78, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 write: IOPS=1, BW=1364KiB/s (1397kB/s)(5120KiB/3754msec); 0 zone resets clat (msec): min=265, max=452, avg=341.78, stdev=76.41 lat (msec): min=265, max=452, avg=342.73, stdev=75.71 clat percentiles (msec): | 1.00th=[ 266], 5.00th=[ 266], 10.00th=[ 266], 20.00th=[ 266], | 30.00th=[ 288], 40.00th=[ 288], 50.00th=[ 321], 60.00th=[ 321], | 70.00th=[ 384], 80.00th=[ 384], 90.00th=[ 451], 95.00th=[ 451], | 99.00th=[ 451], 99.50th=[ 451], 99.90th=[ 451], 99.95th=[ 451], | 99.99th=[ 451] bw ( KiB/s): min= 1992, max= 4039, per=50.19%, avg=2519.25, stdev=1013.40, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (msec) : 100=25.00%, 250=16.67%, 500=41.67%, 750=8.33%, 1000=8.33% cpu : usr=0.11%, sys=4.48%, ctx=98, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144989: Sun Sep 13 08:12:07 2026 read: IOPS=0, BW=415KiB/s (425kB/s)(2048KiB/4939msec) clat (msec): min=106, max=181, avg=143.72, stdev=53.14 lat (msec): min=106, max=181, avg=143.72, stdev=53.14 clat percentiles (msec): | 1.00th=[ 107], 5.00th=[ 107], 10.00th=[ 107], 20.00th=[ 107], | 30.00th=[ 107], 40.00th=[ 107], 50.00th=[ 107], 60.00th=[ 182], | 70.00th=[ 182], 80.00th=[ 182], 90.00th=[ 182], 95.00th=[ 182], | 99.00th=[ 182], 99.50th=[ 182], 99.90th=[ 182], 99.95th=[ 182], | 99.99th=[ 182] bw ( KiB/s): min= 1359, max= 2003, per=46.89%, avg=1681.00, stdev=455.38, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2073KiB/s (2123kB/s)(10.0MiB/4939msec); 0 zone resets clat (msec): min=150, max=1014, avg=460.55, stdev=322.54 lat (msec): min=150, max=1014, avg=460.69, stdev=322.54 clat percentiles (msec): | 1.00th=[ 150], 5.00th=[ 150], 10.00th=[ 150], 20.00th=[ 205], | 30.00th=[ 218], 40.00th=[ 232], 50.00th=[ 275], 60.00th=[ 351], | 70.00th=[ 584], 80.00th=[ 592], 90.00th=[ 986], 95.00th=[ 1011], | 99.00th=[ 1011], 99.50th=[ 1011], 99.90th=[ 1011], 99.95th=[ 1011], | 99.99th=[ 1011] bw ( KiB/s): min= 1359, max= 4087, per=58.33%, avg=2927.33, stdev=1279.48, samples=6 iops : min= 1, max= 3, avg= 2.00, stdev= 1.10, samples=6 lat (msec) : 250=50.00%, 500=16.67%, 750=16.67%, 1000=8.33%, 2000=8.33% cpu : usr=0.06%, sys=2.63%, ctx=55, 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=144990: Sun Sep 13 08:12:07 2026 read: IOPS=1, BW=1076KiB/s (1101kB/s)(6144KiB/5712msec) clat (msec): min=92, max=695, avg=266.73, stdev=218.42 lat (msec): min=92, max=695, avg=266.76, stdev=218.41 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 93], 10.00th=[ 93], 20.00th=[ 157], | 30.00th=[ 157], 40.00th=[ 178], 50.00th=[ 178], 60.00th=[ 199], | 70.00th=[ 279], 80.00th=[ 279], 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= 1992, max= 4079, per=70.50%, avg=2527.25, stdev=1034.66, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1076KiB/s (1101kB/s)(6144KiB/5712msec); 0 zone resets clat (msec): min=294, max=1064, avg=623.35, stdev=305.39 lat (msec): min=294, max=1064, avg=623.50, stdev=305.40 clat percentiles (msec): | 1.00th=[ 296], 5.00th=[ 296], 10.00th=[ 296], 20.00th=[ 376], | 30.00th=[ 376], 40.00th=[ 468], 50.00th=[ 468], 60.00th=[ 634], | 70.00th=[ 902], 80.00th=[ 902], 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= 1992, max= 4087, per=50.57%, avg=2538.25, stdev=1032.72, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (msec) : 100=8.33%, 250=25.00%, 500=33.33%, 750=16.67%, 1000=8.33% lat (msec) : 2000=8.33% cpu : usr=0.07%, sys=3.29%, ctx=103, 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=144991: Sun Sep 13 08:12:07 2026 read: IOPS=1, BW=1118KiB/s (1145kB/s)(5120KiB/4580msec) clat (msec): min=150, max=741, avg=308.84, stdev=252.68 lat (msec): min=150, max=741, avg=308.84, stdev=252.68 clat percentiles (msec): | 1.00th=[ 150], 5.00th=[ 150], 10.00th=[ 150], 20.00th=[ 150], | 30.00th=[ 161], 40.00th=[ 161], 50.00th=[ 167], 60.00th=[ 167], | 70.00th=[ 326], 80.00th=[ 326], 90.00th=[ 743], 95.00th=[ 743], | 99.00th=[ 743], 99.50th=[ 743], 99.90th=[ 743], 99.95th=[ 743], | 99.99th=[ 743] bw ( KiB/s): min= 3984, max= 4039, per=100.00%, avg=4011.50, stdev=38.89, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1565KiB/s (1603kB/s)(7168KiB/4580msec); 0 zone resets clat (msec): min=200, max=719, avg=405.27, stdev=185.56 lat (msec): min=200, max=719, avg=405.40, stdev=185.59 clat percentiles (msec): | 1.00th=[ 201], 5.00th=[ 201], 10.00th=[ 201], 20.00th=[ 249], | 30.00th=[ 309], 40.00th=[ 309], 50.00th=[ 347], 60.00th=[ 451], | 70.00th=[ 451], 80.00th=[ 567], 90.00th=[ 718], 95.00th=[ 718], | 99.00th=[ 718], 99.50th=[ 718], 99.90th=[ 718], 99.95th=[ 718], | 99.99th=[ 718] bw ( KiB/s): min= 1426, max= 4063, per=45.81%, avg=2299.20, stdev=1017.39, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (msec) : 250=41.67%, 500=33.33%, 750=25.00% cpu : usr=0.00%, sys=3.54%, ctx=114, 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=3585KiB/s (3671kB/s), 415KiB/s-1909KiB/s (425kB/s-1955kB/s), io=20.0MiB (20.0MB), run=3754-5712msec WRITE: bw=5020KiB/s (5140kB/s), 1076KiB/s-2073KiB/s (1101kB/s-2123kB/s), io=28.0MiB (29.4MB), run=3754-5712msec 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=145004: Sun Sep 13 08:12:24 2026 read: IOPS=0, BW=2266KiB/s (2320kB/s)(12.0MiB/5423msec) clat (msec): min=797, max=3676, avg=1779.01, stdev=1643.26 lat (msec): min=797, max=3676, avg=1779.01, stdev=1643.26 clat percentiles (msec): | 1.00th=[ 802], 5.00th=[ 802], 10.00th=[ 802], 20.00th=[ 802], | 30.00th=[ 802], 40.00th=[ 860], 50.00th=[ 860], 60.00th=[ 860], | 70.00th=[ 3675], 80.00th=[ 3675], 90.00th=[ 3675], 95.00th=[ 3675], | 99.00th=[ 3675], 99.50th=[ 3675], 99.90th=[ 3675], 99.95th=[ 3675], | 99.99th=[ 3675] bw ( KiB/s): min= 7968, max= 8192, per=100.00%, avg=8080.00, stdev=158.39, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 1000=66.67%, >=2000=33.33% cpu : usr=0.00%, sys=7.86%, ctx=271, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145005: Sun Sep 13 08:12:24 2026 read: IOPS=0, BW=725KiB/s (743kB/s)(4096KiB/5646msec) clat (nsec): min=3785.2M, max=3785.2M, avg=3785167437.00, stdev= 0.00 lat (nsec): min=3785.2M, max=3785.2M, avg=3785170554.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 3775], 5.00th=[ 3775], 10.00th=[ 3775], 20.00th=[ 3775], | 30.00th=[ 3775], 40.00th=[ 3775], 50.00th=[ 3775], 60.00th=[ 3775], | 70.00th=[ 3775], 80.00th=[ 3775], 90.00th=[ 3775], 95.00th=[ 3775], | 99.00th=[ 3775], 99.50th=[ 3775], 99.90th=[ 3775], 99.95th=[ 3775], | 99.99th=[ 3775] bw ( KiB/s): min= 8094, max= 8094, per=100.00%, avg=8094.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=1451KiB/s (1486kB/s)(8192KiB/5646msec); 0 zone resets clat (msec): min=539, max=1147, avg=843.47, stdev=430.19 lat (msec): min=539, max=1147, avg=843.91, stdev=429.97 clat percentiles (msec): | 1.00th=[ 542], 5.00th=[ 542], 10.00th=[ 542], 20.00th=[ 542], | 30.00th=[ 542], 40.00th=[ 542], 50.00th=[ 542], 60.00th=[ 1150], | 70.00th=[ 1150], 80.00th=[ 1150], 90.00th=[ 1150], 95.00th=[ 1150], | 99.00th=[ 1150], 99.50th=[ 1150], 99.90th=[ 1150], 99.95th=[ 1150], | 99.99th=[ 1150] bw ( KiB/s): min= 7968, max= 7968, per=100.00%, avg=7968.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=4.92%, ctx=560, 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=145007: Sun Sep 13 08:12:24 2026 write: IOPS=0, BW=2049KiB/s (2098kB/s)(12.0MiB/5997msec); 0 zone resets clat (msec): min=280, max=4322, avg=1916.83, stdev=2128.21 lat (msec): min=280, max=4323, avg=1918.22, stdev=2128.12 clat percentiles (msec): | 1.00th=[ 279], 5.00th=[ 279], 10.00th=[ 279], 20.00th=[ 279], | 30.00th=[ 279], 40.00th=[ 1150], 50.00th=[ 1150], 60.00th=[ 1150], | 70.00th=[ 4329], 80.00th=[ 4329], 90.00th=[ 4329], 95.00th=[ 4329], | 99.00th=[ 4329], 99.50th=[ 4329], 99.90th=[ 4329], 99.95th=[ 4329], | 99.99th=[ 4329] bw ( KiB/s): min= 7816, max= 7968, per=100.00%, avg=7892.00, stdev=107.48, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=1.83%, ctx=43, 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 rand-rw: (groupid=0, jobs=1): err= 0: pid=145008: Sun Sep 13 08:12:24 2026 write: IOPS=0, BW=2091KiB/s (2141kB/s)(12.0MiB/5876msec); 0 zone resets clat (msec): min=1204, max=3277, avg=1899.94, stdev=1192.59 lat (msec): min=1205, max=3277, avg=1900.40, stdev=1192.57 clat percentiles (msec): | 1.00th=[ 1200], 5.00th=[ 1200], 10.00th=[ 1200], 20.00th=[ 1200], | 30.00th=[ 1200], 40.00th=[ 1217], 50.00th=[ 1217], 60.00th=[ 1217], | 70.00th=[ 3272], 80.00th=[ 3272], 90.00th=[ 3272], 95.00th=[ 3272], | 99.00th=[ 3272], 99.50th=[ 3272], 99.90th=[ 3272], 99.95th=[ 3272], | 99.99th=[ 3272] bw ( KiB/s): min= 7968, max= 8110, per=100.00%, avg=8039.00, stdev=100.41, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 2000=66.67%, >=2000=33.33% cpu : usr=0.00%, sys=2.76%, ctx=70, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=2902KiB/s (2972kB/s), 725KiB/s-2266KiB/s (743kB/s-2320kB/s), io=16.0MiB (16.8MB), run=5423-5646msec WRITE: bw=5464KiB/s (5595kB/s), 1451KiB/s-2091KiB/s (1486kB/s-2141kB/s), io=32.0MiB (33.6MB), run=5646-5997msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145002: Sun Sep 13 08:12:25 2026 read: IOPS=0, BW=2219KiB/s (2273kB/s)(12.0MiB/5537msec) clat (msec): min=307, max=4078, avg=1753.50, stdev=2033.65 lat (msec): min=307, max=4078, avg=1753.50, stdev=2033.66 clat percentiles (msec): | 1.00th=[ 309], 5.00th=[ 309], 10.00th=[ 309], 20.00th=[ 309], | 30.00th=[ 309], 40.00th=[ 877], 50.00th=[ 877], 60.00th=[ 877], | 70.00th=[ 4077], 80.00th=[ 4077], 90.00th=[ 4077], 95.00th=[ 4077], | 99.00th=[ 4077], 99.50th=[ 4077], 99.90th=[ 4077], 99.95th=[ 4077], | 99.99th=[ 4077] bw ( KiB/s): min= 8078, max= 8078, per=100.00%, avg=8078.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 1000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=2.15%, ctx=58, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145003: Sun Sep 13 08:12:25 2026 read: IOPS=0, BW=664KiB/s (680kB/s)(4096KiB/6169msec) clat (nsec): min=3888.7M, max=3888.7M, avg=3888729871.00, stdev= 0.00 lat (nsec): min=3888.7M, max=3888.7M, avg=3888732377.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 3876], 5.00th=[ 3876], 10.00th=[ 3876], 20.00th=[ 3876], | 30.00th=[ 3876], 40.00th=[ 3876], 50.00th=[ 3876], 60.00th=[ 3876], | 70.00th=[ 3876], 80.00th=[ 3876], 90.00th=[ 3876], 95.00th=[ 3876], | 99.00th=[ 3876], 99.50th=[ 3876], 99.90th=[ 3876], 99.95th=[ 3876], | 99.99th=[ 3876] bw ( KiB/s): min= 8078, max= 8078, per=100.00%, avg=8078.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=1328KiB/s (1360kB/s)(8192KiB/6169msec); 0 zone resets clat (msec): min=725, max=1308, avg=1017.08, stdev=412.02 lat (msec): min=726, max=1309, avg=1017.86, stdev=412.27 clat percentiles (msec): | 1.00th=[ 726], 5.00th=[ 726], 10.00th=[ 726], 20.00th=[ 726], | 30.00th=[ 726], 40.00th=[ 726], 50.00th=[ 726], 60.00th=[ 1301], | 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= 8143, max= 8143, per=100.00%, avg=8143.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.03%, sys=1.51%, ctx=55, 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=145006: Sun Sep 13 08:12:25 2026 write: IOPS=0, BW=1831KiB/s (1875kB/s)(12.0MiB/6711msec); 0 zone resets clat (msec): min=262, max=5106, avg=2196.56, stdev=2565.08 lat (msec): min=263, max=5107, avg=2197.59, stdev=2565.39 clat percentiles (msec): | 1.00th=[ 262], 5.00th=[ 262], 10.00th=[ 262], 20.00th=[ 262], | 30.00th=[ 262], 40.00th=[ 1217], 50.00th=[ 1217], 60.00th=[ 1217], | 70.00th=[ 5134], 80.00th=[ 5134], 90.00th=[ 5134], 95.00th=[ 5134], | 99.00th=[ 5134], 99.50th=[ 5134], 99.90th=[ 5134], 99.95th=[ 5134], | 99.99th=[ 5134] bw ( KiB/s): min= 8015, max= 8192, per=100.00%, avg=8103.50, stdev=125.16, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 500=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=2.00%, ctx=57, 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 rand-rw: (groupid=0, jobs=1): err= 0: pid=145009: Sun Sep 13 08:12:25 2026 write: IOPS=0, BW=2182KiB/s (2234kB/s)(12.0MiB/5632msec); 0 zone resets clat (msec): min=386, max=3258, avg=1861.00, stdev=1437.45 lat (msec): min=387, max=3260, avg=1861.69, stdev=1438.02 clat percentiles (msec): | 1.00th=[ 388], 5.00th=[ 388], 10.00th=[ 388], 20.00th=[ 388], | 30.00th=[ 388], 40.00th=[ 1938], 50.00th=[ 1938], 60.00th=[ 1938], | 70.00th=[ 3272], 80.00th=[ 3272], 90.00th=[ 3272], 95.00th=[ 3272], | 99.00th=[ 3272], 99.50th=[ 3272], 99.90th=[ 3272], 99.95th=[ 3272], | 99.99th=[ 3272] bw ( KiB/s): min= 7543, max= 8094, per=100.00%, avg=7818.50, stdev=389.62, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=1.86%, ctx=50, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=2656KiB/s (2720kB/s), 664KiB/s-2219KiB/s (680kB/s-2273kB/s), io=16.0MiB (16.8MB), run=5537-6169msec WRITE: bw=4883KiB/s (5000kB/s), 1328KiB/s-2182KiB/s (1360kB/s-2234kB/s), io=32.0MiB (33.6MB), run=5632-6711msec