== sanity test 398b: DIO and buffer IO race ============== 16:52:27 (1768254747) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 3.58199 s, 14.1 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=147044: Mon Jan 12 16:53:48 2026 read: IOPS=21, BW=84.5KiB/s (86.6kB/s)(5992KiB/70871msec) clat (usec): min=96, max=488115, avg=23593.77, stdev=21597.63 lat (usec): min=96, max=488118, avg=23595.00, stdev=21597.63 clat percentiles (usec): | 1.00th=[ 129], 5.00th=[ 194], 10.00th=[ 6390], 20.00th=[ 11600], | 30.00th=[ 14222], 40.00th=[ 17171], 50.00th=[ 20317], 60.00th=[ 23725], | 70.00th=[ 28181], 80.00th=[ 33817], 90.00th=[ 44303], 95.00th=[ 52691], | 99.00th=[ 76022], 99.50th=[ 98042], 99.90th=[278922], 99.95th=[488637], | 99.99th=[488637] bw ( KiB/s): min= 23, max= 183, per=25.02%, avg=84.57, stdev=26.76, samples=139 iops : min= 5, max= 45, avg=20.60, stdev= 6.71, samples=139 write: IOPS=22, BW=88.8KiB/s (90.0kB/s)(6296KiB/70871msec); 0 zone resets clat (usec): min=663, max=382248, avg=22405.15, stdev=23986.10 lat (usec): min=663, max=382249, avg=22409.43, stdev=23985.22 clat percentiles (usec): | 1.00th=[ 914], 5.00th=[ 1139], 10.00th=[ 1467], 20.00th=[ 2671], | 30.00th=[ 5080], 40.00th=[ 10945], 50.00th=[ 17433], 60.00th=[ 22676], | 70.00th=[ 28967], 80.00th=[ 37487], 90.00th=[ 50594], 95.00th=[ 64226], | 99.00th=[ 99091], 99.50th=[123208], 99.90th=[177210], 99.95th=[383779], | 99.99th=[383779] bw ( KiB/s): min= 31, max= 172, per=25.38%, avg=89.60, stdev=26.37, samples=138 iops : min= 7, max= 43, avg=21.87, stdev= 6.60, samples=138 lat (usec) : 100=0.07%, 250=2.96%, 500=1.07%, 750=0.39%, 1000=0.98% lat (msec) : 2=7.00%, 4=5.57%, 10=9.08%, 20=24.87%, 50=39.49% lat (msec) : 100=7.85%, 250=0.59%, 500=0.10% cpu : usr=0.11%, sys=8.98%, ctx=6699, 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=147045: Mon Jan 12 16:53:48 2026 read: IOPS=20, BW=83.6KiB/s (85.6kB/s)(5940KiB/71037msec) clat (usec): min=64, max=896272, avg=23839.25, stdev=27643.59 lat (usec): min=64, max=896275, avg=23841.68, stdev=27643.26 clat percentiles (usec): | 1.00th=[ 126], 5.00th=[ 215], 10.00th=[ 6915], 20.00th=[ 11731], | 30.00th=[ 14222], 40.00th=[ 16909], 50.00th=[ 19792], 60.00th=[ 23725], | 70.00th=[ 28443], 80.00th=[ 34341], 90.00th=[ 43254], 95.00th=[ 51643], | 99.00th=[ 78119], 99.50th=[ 91751], 99.90th=[108528], 99.95th=[893387], | 99.99th=[893387] bw ( KiB/s): min= 7, max= 152, per=24.92%, avg=84.23, stdev=29.18, samples=138 iops : min= 1, max= 38, avg=20.51, stdev= 7.31, samples=138 write: IOPS=22, BW=89.4KiB/s (91.5kB/s)(6348KiB/71037msec); 0 zone resets clat (usec): min=688, max=188321, avg=22291.10, stdev=23164.09 lat (usec): min=690, max=188323, avg=22294.40, stdev=23166.23 clat percentiles (usec): | 1.00th=[ 865], 5.00th=[ 1139], 10.00th=[ 1500], 20.00th=[ 2737], | 30.00th=[ 5538], 40.00th=[ 10683], 50.00th=[ 16319], 60.00th=[ 21627], | 70.00th=[ 28443], 80.00th=[ 36963], 90.00th=[ 52167], 95.00th=[ 64750], | 99.00th=[100140], 99.50th=[128451], 99.90th=[166724], 99.95th=[187696], | 99.99th=[187696] bw ( KiB/s): min= 31, max= 183, per=25.40%, avg=89.66, stdev=28.12, samples=138 iops : min= 7, max= 45, avg=21.87, stdev= 7.04, samples=138 lat (usec) : 100=0.10%, 250=2.64%, 500=0.85%, 750=0.36%, 1000=0.68% lat (msec) : 2=7.10%, 4=5.89%, 10=9.90%, 20=26.69%, 50=37.21% lat (msec) : 100=7.98%, 250=0.59%, 1000=0.03% cpu : usr=0.13%, sys=9.12%, ctx=6828, 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=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=147046: Mon Jan 12 16:53:48 2026 read: IOPS=21, BW=85.5KiB/s (87.6kB/s)(6028KiB/70479msec) clat (usec): min=77, max=167037, avg=23343.50, stdev=16098.80 lat (usec): min=77, max=167039, avg=23347.35, stdev=16097.40 clat percentiles (usec): | 1.00th=[ 133], 5.00th=[ 204], 10.00th=[ 7046], 20.00th=[ 11731], | 30.00th=[ 14877], 40.00th=[ 17695], 50.00th=[ 20841], 60.00th=[ 24511], | 70.00th=[ 28181], 80.00th=[ 33817], 90.00th=[ 42206], 95.00th=[ 50594], | 99.00th=[ 72877], 99.50th=[ 80217], 99.90th=[164627], 99.95th=[166724], | 99.99th=[166724] bw ( KiB/s): min= 39, max= 144, per=25.52%, avg=86.26, stdev=23.04, samples=137 iops : min= 9, max= 36, avg=21.02, stdev= 5.80, samples=137 write: IOPS=22, BW=88.8KiB/s (90.0kB/s)(6260KiB/70479msec); 0 zone resets clat (usec): min=597, max=1013.9k, avg=22419.18, stdev=33689.31 lat (usec): min=598, max=1013.9k, avg=22421.98, stdev=33689.12 clat percentiles (usec): | 1.00th=[ 930], 5.00th=[ 1188], 10.00th=[ 1565], | 20.00th=[ 2737], 30.00th=[ 5080], 40.00th=[ 10421], | 50.00th=[ 16188], 60.00th=[ 22676], 70.00th=[ 28443], | 80.00th=[ 36963], 90.00th=[ 49546], 95.00th=[ 61604], | 99.00th=[ 99091], 99.50th=[ 117965], 99.90th=[ 287310], | 99.95th=[1010828], 99.99th=[1010828] bw ( KiB/s): min= 32, max= 180, per=25.28%, avg=89.26, stdev=28.56, samples=137 iops : min= 8, max= 45, avg=21.77, stdev= 7.11, samples=137 lat (usec) : 100=0.07%, 250=2.86%, 500=0.91%, 750=0.26%, 1000=0.85% lat (msec) : 2=6.67%, 4=6.09%, 10=9.67%, 20=24.38%, 50=40.69% lat (msec) : 100=6.97%, 250=0.52%, 500=0.03%, 2000=0.03% cpu : usr=0.09%, sys=9.10%, ctx=6769, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=147047: Mon Jan 12 16:53:48 2026 read: IOPS=21, BW=85.4KiB/s (87.5kB/s)(6052KiB/70826msec) clat (usec): min=63, max=155139, avg=23000.66, stdev=15497.42 lat (usec): min=64, max=155139, avg=23001.86, stdev=15497.21 clat percentiles (usec): | 1.00th=[ 120], 5.00th=[ 188], 10.00th=[ 6652], 20.00th=[ 11731], | 30.00th=[ 14353], 40.00th=[ 17171], 50.00th=[ 20317], 60.00th=[ 23987], | 70.00th=[ 28443], 80.00th=[ 33424], 90.00th=[ 41681], 95.00th=[ 51119], | 99.00th=[ 72877], 99.50th=[ 84411], 99.90th=[108528], 99.95th=[154141], | 99.99th=[154141] bw ( KiB/s): min= 31, max= 166, per=25.56%, avg=86.39, stdev=25.33, samples=138 iops : min= 7, max= 41, avg=21.06, stdev= 6.39, samples=138 write: IOPS=22, BW=88.0KiB/s (90.2kB/s)(6236KiB/70826msec); 0 zone resets clat (usec): min=664, max=890403, avg=22967.09, stdev=31630.64 lat (usec): min=665, max=890404, avg=22968.86, stdev=31630.81 clat percentiles (usec): | 1.00th=[ 963], 5.00th=[ 1139], 10.00th=[ 1418], 20.00th=[ 2704], | 30.00th=[ 5276], 40.00th=[ 10028], 50.00th=[ 16909], 60.00th=[ 22414], | 70.00th=[ 30540], 80.00th=[ 38011], 90.00th=[ 52691], 95.00th=[ 65799], | 99.00th=[ 99091], 99.50th=[110625], 99.90th=[223347], 99.95th=[893387], | 99.99th=[893387] bw ( KiB/s): min= 13, max= 161, per=24.82%, avg=87.63, stdev=28.38, samples=140 iops : min= 3, max= 40, avg=21.37, stdev= 7.13, samples=140 lat (usec) : 100=0.26%, 250=2.60%, 500=0.88%, 750=0.29%, 1000=0.85% lat (msec) : 2=7.03%, 4=6.09%, 10=9.51%, 20=25.52%, 50=38.83% lat (msec) : 100=7.62%, 250=0.49%, 1000=0.03% cpu : usr=0.09%, sys=9.11%, ctx=6696, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=338KiB/s (346kB/s), 83.6KiB/s-85.5KiB/s (85.6kB/s-87.6kB/s), io=23.4MiB (24.6MB), run=70479-71037msec WRITE: bw=354KiB/s (362kB/s), 88.0KiB/s-89.4KiB/s (90.2kB/s-91.5kB/s), io=24.6MiB (25.7MB), run=70479-71037msec rand-rw: (groupid=0, jobs=1): err= 0: pid=147039: Mon Jan 12 16:56:26 2026 read: IOPS=6, BW=26.2KiB/s (26.8kB/s)(5992KiB/228642msec) clat (msec): min=4, max=637, avg=30.39, stdev=32.40 lat (msec): min=4, max=637, avg=30.39, stdev=32.40 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 8], 10.00th=[ 10], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 19], 50.00th=[ 23], 60.00th=[ 29], | 70.00th=[ 35], 80.00th=[ 43], 90.00th=[ 56], 95.00th=[ 73], | 99.00th=[ 130], 99.50th=[ 163], 99.90th=[ 531], 99.95th=[ 634], | 99.99th=[ 634] bw ( KiB/s): min= 6, max= 119, per=28.48%, avg=29.61, stdev=18.07, samples=392 iops : min= 1, max= 29, avg= 6.81, stdev= 4.55, samples=392 write: IOPS=6, BW=27.5KiB/s (28.2kB/s)(6296KiB/228642msec); 0 zone resets clat (msec): min=21, max=1521, avg=116.16, stdev=75.63 lat (msec): min=21, max=1521, avg=116.17, stdev=75.63 clat percentiles (msec): | 1.00th=[ 39], 5.00th=[ 50], 10.00th=[ 58], 20.00th=[ 70], | 30.00th=[ 81], 40.00th=[ 90], 50.00th=[ 101], 60.00th=[ 112], | 70.00th=[ 124], 80.00th=[ 144], 90.00th=[ 186], 95.00th=[ 259], | 99.00th=[ 401], 99.50th=[ 460], 99.90th=[ 584], 99.95th=[ 1519], | 99.99th=[ 1519] bw ( KiB/s): min= 7, max= 72, per=25.13%, avg=27.39, stdev=12.30, samples=444 iops : min= 1, max= 18, avg= 6.25, stdev= 3.11, samples=444 lat (msec) : 10=5.63%, 20=16.11%, 50=23.05%, 100=28.48%, 250=23.83% lat (msec) : 500=2.64%, 750=0.23%, 2000=0.03% cpu : usr=0.05%, sys=1.54%, ctx=5539, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=147040: Mon Jan 12 16:56:26 2026 read: IOPS=6, BW=26.1KiB/s (26.7kB/s)(5940KiB/227591msec) clat (msec): min=4, max=913, avg=29.98, stdev=32.88 lat (msec): min=4, max=913, avg=29.98, stdev=32.88 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 19], 50.00th=[ 23], 60.00th=[ 28], | 70.00th=[ 34], 80.00th=[ 43], 90.00th=[ 57], 95.00th=[ 71], | 99.00th=[ 117], 99.50th=[ 146], 99.90th=[ 292], 99.95th=[ 911], | 99.99th=[ 911] bw ( KiB/s): min= 6, max= 103, per=27.81%, avg=28.93, stdev=18.41, samples=398 iops : min= 1, max= 25, avg= 6.63, stdev= 4.61, samples=398 write: IOPS=6, BW=27.9KiB/s (28.6kB/s)(6348KiB/227591msec); 0 zone resets clat (msec): min=25, max=1491, avg=115.18, stdev=77.38 lat (msec): min=25, max=1491, avg=115.18, stdev=77.38 clat percentiles (msec): | 1.00th=[ 39], 5.00th=[ 50], 10.00th=[ 58], 20.00th=[ 69], | 30.00th=[ 79], 40.00th=[ 88], 50.00th=[ 100], 60.00th=[ 110], | 70.00th=[ 124], 80.00th=[ 142], 90.00th=[ 188], 95.00th=[ 249], | 99.00th=[ 376], 99.50th=[ 443], 99.90th=[ 1116], 99.95th=[ 1485], | 99.99th=[ 1485] bw ( KiB/s): min= 6, max= 93, per=25.49%, avg=27.79, stdev=11.93, samples=442 iops : min= 1, max= 23, avg= 6.35, stdev= 3.03, samples=442 lat (msec) : 10=5.73%, 20=16.08%, 50=22.36%, 100=29.75%, 250=23.47% lat (msec) : 500=2.41%, 750=0.10%, 1000=0.03%, 2000=0.07% cpu : usr=0.04%, sys=1.52%, ctx=5667, 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=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=147041: Mon Jan 12 16:56:26 2026 read: IOPS=6, BW=26.4KiB/s (27.0kB/s)(6028KiB/228298msec) clat (msec): min=4, max=379, avg=31.09, stdev=24.53 lat (msec): min=4, max=379, avg=31.09, stdev=24.53 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 13], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 25], 60.00th=[ 31], | 70.00th=[ 37], 80.00th=[ 46], 90.00th=[ 59], 95.00th=[ 77], | 99.00th=[ 113], 99.50th=[ 142], 99.90th=[ 190], 99.95th=[ 380], | 99.99th=[ 380] bw ( KiB/s): min= 5, max= 136, per=28.01%, avg=29.13, stdev=19.29, samples=402 iops : min= 1, max= 34, avg= 6.69, stdev= 4.85, samples=402 write: IOPS=6, BW=27.4KiB/s (28.1kB/s)(6260KiB/228298msec); 0 zone resets clat (msec): min=22, max=1448, avg=115.76, stdev=79.91 lat (msec): min=22, max=1448, avg=115.76, stdev=79.91 clat percentiles (msec): | 1.00th=[ 37], 5.00th=[ 50], 10.00th=[ 56], 20.00th=[ 69], | 30.00th=[ 79], 40.00th=[ 89], 50.00th=[ 99], 60.00th=[ 110], | 70.00th=[ 123], 80.00th=[ 144], 90.00th=[ 182], 95.00th=[ 257], | 99.00th=[ 409], 99.50th=[ 456], 99.90th=[ 1011], 99.95th=[ 1452], | 99.99th=[ 1452] bw ( KiB/s): min= 6, max= 71, per=24.94%, avg=27.19, stdev=12.39, samples=446 iops : min= 1, max= 17, avg= 6.20, stdev= 3.15, samples=446 lat (msec) : 10=5.05%, 20=15.10%, 50=23.83%, 100=30.66%, 250=22.69% lat (msec) : 500=2.47%, 750=0.10%, 1000=0.03%, 2000=0.07% cpu : usr=0.04%, sys=1.54%, ctx=5551, 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=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=147042: Mon Jan 12 16:56:26 2026 read: IOPS=6, BW=26.5KiB/s (27.1kB/s)(6052KiB/228724msec) clat (msec): min=3, max=266, avg=30.03, stdev=24.21 lat (msec): min=3, max=266, avg=30.03, stdev=24.21 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 20], 50.00th=[ 24], 60.00th=[ 29], | 70.00th=[ 36], 80.00th=[ 45], 90.00th=[ 57], 95.00th=[ 71], | 99.00th=[ 122], 99.50th=[ 157], 99.90th=[ 243], 99.95th=[ 266], | 99.99th=[ 266] bw ( KiB/s): min= 5, max= 96, per=27.95%, avg=29.07, stdev=18.14, samples=404 iops : min= 1, max= 24, avg= 6.68, stdev= 4.59, samples=404 write: IOPS=6, BW=27.3KiB/s (27.9kB/s)(6236KiB/228724msec); 0 zone resets clat (msec): min=24, max=1537, avg=117.38, stdev=81.35 lat (msec): min=24, max=1537, avg=117.38, stdev=81.35 clat percentiles (msec): | 1.00th=[ 37], 5.00th=[ 52], 10.00th=[ 58], 20.00th=[ 69], | 30.00th=[ 80], 40.00th=[ 89], 50.00th=[ 99], 60.00th=[ 111], | 70.00th=[ 127], 80.00th=[ 146], 90.00th=[ 184], 95.00th=[ 257], | 99.00th=[ 401], 99.50th=[ 485], 99.90th=[ 1011], 99.95th=[ 1536], | 99.99th=[ 1536] bw ( KiB/s): min= 5, max= 70, per=24.86%, avg=27.10, stdev=12.04, samples=446 iops : min= 1, max= 17, avg= 6.18, stdev= 3.05, samples=446 lat (msec) : 4=0.03%, 10=5.70%, 20=15.07%, 50=23.34%, 100=30.27% lat (msec) : 250=22.82%, 500=2.60%, 750=0.07%, 1000=0.03%, 2000=0.07% cpu : usr=0.04%, sys=1.56%, ctx=5626, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=105KiB/s (108kB/s), 26.1KiB/s-26.5KiB/s (26.7kB/s-27.1kB/s), io=23.4MiB (24.6MB), run=227591-228724msec WRITE: bw=110KiB/s (113kB/s), 27.3KiB/s-27.9KiB/s (27.9kB/s-28.6kB/s), io=24.6MiB (25.7MB), run=227591-228724msec 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=147091: Mon Jan 12 16:56:59 2026 read: IOPS=15, BW=250KiB/s (256kB/s)(5920KiB/23643msec) clat (usec): min=95, max=259657, avg=30256.02, stdev=27553.25 lat (usec): min=95, max=259657, avg=30257.15, stdev=27553.22 clat percentiles (usec): | 1.00th=[ 113], 5.00th=[ 149], 10.00th=[ 165], 20.00th=[ 529], | 30.00th=[ 14877], 40.00th=[ 21365], 50.00th=[ 26346], 60.00th=[ 32900], | 70.00th=[ 39060], 80.00th=[ 49546], 90.00th=[ 63701], 95.00th=[ 80217], | 99.00th=[113771], 99.50th=[115868], 99.90th=[258999], 99.95th=[258999], | 99.99th=[258999] bw ( KiB/s): min= 94, max= 568, per=23.92%, avg=242.26, stdev=89.16, samples=46 iops : min= 5, max= 35, avg=14.46, stdev= 5.61, samples=46 write: IOPS=16, BW=269KiB/s (276kB/s)(6368KiB/23643msec); 0 zone resets clat (usec): min=1275, max=364109, avg=30717.34, stdev=35206.07 lat (usec): min=1277, max=364110, avg=30719.42, stdev=35206.06 clat percentiles (usec): | 1.00th=[ 1401], 5.00th=[ 1696], 10.00th=[ 2474], 20.00th=[ 4948], | 30.00th=[ 8717], 40.00th=[ 13566], 50.00th=[ 20841], 60.00th=[ 28967], | 70.00th=[ 37487], 80.00th=[ 50594], 90.00th=[ 70779], 95.00th=[ 90702], | 99.00th=[156238], 99.50th=[254804], 99.90th=[362808], 99.95th=[362808], | 99.99th=[362808] bw ( KiB/s): min= 31, max= 532, per=24.94%, avg=265.65, stdev=117.50, samples=46 iops : min= 1, max= 33, avg=15.93, stdev= 7.43, samples=46 lat (usec) : 100=0.26%, 250=7.94%, 500=1.17%, 750=0.91%, 1000=0.65% lat (msec) : 2=4.17%, 4=5.34%, 10=8.72%, 20=13.80%, 50=37.11% lat (msec) : 100=17.19%, 250=2.34%, 500=0.39% cpu : usr=0.05%, sys=6.91%, ctx=1510, 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=147092: Mon Jan 12 16:56:59 2026 read: IOPS=15, BW=252KiB/s (258kB/s)(5744KiB/22836msec) clat (usec): min=107, max=300545, avg=30859.61, stdev=28105.98 lat (usec): min=108, max=300547, avg=30861.86, stdev=28105.18 clat percentiles (usec): | 1.00th=[ 117], 5.00th=[ 147], 10.00th=[ 169], 20.00th=[ 1958], | 30.00th=[ 17171], 40.00th=[ 22152], 50.00th=[ 28181], 60.00th=[ 33162], | 70.00th=[ 39584], 80.00th=[ 47973], 90.00th=[ 62653], 95.00th=[ 76022], | 99.00th=[102237], 99.50th=[168821], 99.90th=[299893], 99.95th=[299893], | 99.99th=[299893] bw ( KiB/s): min= 30, max= 479, per=24.89%, avg=252.18, stdev=108.94, samples=45 iops : min= 1, max= 29, avg=15.07, stdev= 6.86, samples=45 write: IOPS=17, BW=287KiB/s (293kB/s)(6544KiB/22836msec); 0 zone resets clat (usec): min=1355, max=328524, avg=28001.15, stdev=31754.76 lat (usec): min=1357, max=329846, avg=28011.44, stdev=31783.07 clat percentiles (usec): | 1.00th=[ 1418], 5.00th=[ 1663], 10.00th=[ 2114], 20.00th=[ 3687], | 30.00th=[ 5800], 40.00th=[ 8717], 50.00th=[ 15795], 60.00th=[ 25822], | 70.00th=[ 38011], 80.00th=[ 50594], 90.00th=[ 70779], 95.00th=[ 83362], | 99.00th=[111674], 99.50th=[132645], 99.90th=[329253], 99.95th=[329253], | 99.99th=[329253] bw ( KiB/s): min= 93, max= 569, per=26.89%, avg=286.33, stdev=121.16, samples=45 iops : min= 5, max= 35, avg=17.22, stdev= 7.55, samples=45 lat (usec) : 250=6.12%, 500=1.82%, 750=0.52%, 1000=0.13% lat (msec) : 2=5.60%, 4=7.16%, 10=12.24%, 20=11.59%, 50=34.64% lat (msec) : 100=18.23%, 250=1.69%, 500=0.26% cpu : usr=0.09%, sys=7.23%, ctx=1522, 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=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=147093: Mon Jan 12 16:56:59 2026 read: IOPS=16, BW=268KiB/s (274kB/s)(6256KiB/23367msec) clat (usec): min=92, max=273687, avg=32327.52, stdev=29470.59 lat (usec): min=93, max=273688, avg=32328.68, stdev=29470.64 clat percentiles (usec): | 1.00th=[ 110], 5.00th=[ 141], 10.00th=[ 159], 20.00th=[ 478], | 30.00th=[ 17957], 40.00th=[ 23200], 50.00th=[ 28443], 60.00th=[ 35390], | 70.00th=[ 43254], 80.00th=[ 53216], 90.00th=[ 63177], 95.00th=[ 69731], | 99.00th=[152044], 99.50th=[173016], 99.90th=[274727], 99.95th=[274727], | 99.99th=[274727] bw ( KiB/s): min= 64, max= 447, per=26.42%, avg=267.65, stdev=89.17, samples=46 iops : min= 4, max= 27, avg=16.07, stdev= 5.55, samples=46 write: IOPS=16, BW=258KiB/s (264kB/s)(6032KiB/23367msec); 0 zone resets clat (usec): min=1086, max=219510, avg=27978.80, stdev=31106.52 lat (usec): min=1088, max=219512, avg=27988.54, stdev=31101.29 clat percentiles (usec): | 1.00th=[ 1369], 5.00th=[ 1713], 10.00th=[ 2442], 20.00th=[ 4424], | 30.00th=[ 7570], 40.00th=[ 10421], 50.00th=[ 17171], 60.00th=[ 25560], | 70.00th=[ 33817], 80.00th=[ 47449], 90.00th=[ 68682], 95.00th=[ 87557], | 99.00th=[132645], 99.50th=[193987], 99.90th=[219153], 99.95th=[219153], | 99.99th=[219153] bw ( KiB/s): min= 63, max= 447, per=23.77%, avg=253.20, stdev=102.36, samples=46 iops : min= 3, max= 27, avg=15.15, stdev= 6.49, samples=46 lat (usec) : 100=0.26%, 250=8.72%, 500=1.56%, 750=0.39%, 1000=0.13% lat (msec) : 2=4.43%, 4=4.95%, 10=10.16%, 20=13.28%, 50=35.16% lat (msec) : 100=18.10%, 250=2.73%, 500=0.13% cpu : usr=0.09%, sys=6.77%, ctx=1488, 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=147095: Mon Jan 12 16:56:59 2026 read: IOPS=16, BW=259KiB/s (265kB/s)(6032KiB/23323msec) clat (usec): min=109, max=262995, avg=34194.12, stdev=34356.64 lat (usec): min=110, max=262996, avg=34195.76, stdev=34356.11 clat percentiles (usec): | 1.00th=[ 118], 5.00th=[ 147], 10.00th=[ 157], 20.00th=[ 281], | 30.00th=[ 17171], 40.00th=[ 23987], 50.00th=[ 29230], 60.00th=[ 36439], | 70.00th=[ 44303], 80.00th=[ 53216], 90.00th=[ 67634], 95.00th=[ 82314], | 99.00th=[181404], 99.50th=[256902], 99.90th=[263193], 99.95th=[263193], | 99.99th=[263193] bw ( KiB/s): min= 95, max= 509, per=25.32%, avg=256.50, stdev=99.87, samples=46 iops : min= 5, max= 31, avg=15.37, stdev= 6.29, samples=46 write: IOPS=16, BW=268KiB/s (275kB/s)(6256KiB/23323msec); 0 zone resets clat (usec): min=971, max=201214, avg=26488.04, stdev=28424.66 lat (usec): min=973, max=201216, avg=26507.23, stdev=28430.45 clat percentiles (usec): | 1.00th=[ 1418], 5.00th=[ 1745], 10.00th=[ 2212], 20.00th=[ 4359], | 30.00th=[ 6259], 40.00th=[ 9241], 50.00th=[ 15926], 60.00th=[ 23725], | 70.00th=[ 33162], 80.00th=[ 47449], 90.00th=[ 68682], 95.00th=[ 78119], | 99.00th=[108528], 99.50th=[181404], 99.90th=[200279], 99.95th=[200279], | 99.99th=[200279] bw ( KiB/s): min= 63, max= 447, per=25.26%, avg=269.04, stdev=93.65, samples=46 iops : min= 3, max= 27, avg=16.15, stdev= 5.89, samples=46 lat (usec) : 250=9.51%, 500=1.04%, 750=0.13%, 1000=0.13% lat (msec) : 2=4.95%, 4=5.34%, 10=11.98%, 20=12.50%, 50=32.94% lat (msec) : 100=18.49%, 250=2.73%, 500=0.26% cpu : usr=0.07%, sys=7.00%, ctx=1469, 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=1013KiB/s (1037kB/s), 250KiB/s-268KiB/s (256kB/s-274kB/s), io=23.4MiB (24.5MB), run=22836-23643msec WRITE: bw=1066KiB/s (1091kB/s), 258KiB/s-287KiB/s (264kB/s-293kB/s), io=24.6MiB (25.8MB), run=22836-23643msec rand-rw: (groupid=0, jobs=1): err= 0: pid=147096: Mon Jan 12 16:57:34 2026 read: IOPS=6, BW=101KiB/s (103kB/s)(5920KiB/58688msec) clat (msec): min=4, max=187, avg=29.80, stdev=26.04 lat (msec): min=4, max=187, avg=29.80, stdev=26.04 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 12], | 30.00th=[ 14], 40.00th=[ 17], 50.00th=[ 21], 60.00th=[ 25], | 70.00th=[ 33], 80.00th=[ 44], 90.00th=[ 64], 95.00th=[ 83], | 99.00th=[ 133], 99.50th=[ 153], 99.90th=[ 188], 99.95th=[ 188], | 99.99th=[ 188] bw ( KiB/s): min= 31, max= 413, per=26.29%, avg=106.72, stdev=69.57, samples=109 iops : min= 1, max= 25, avg= 5.93, stdev= 4.45, samples=109 write: IOPS=6, BW=109KiB/s (111kB/s)(6368KiB/58688msec); 0 zone resets clat (msec): min=40, max=456, avg=119.43, stdev=56.85 lat (msec): min=40, max=456, avg=119.44, stdev=56.85 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 56], 10.00th=[ 66], 20.00th=[ 74], | 30.00th=[ 84], 40.00th=[ 96], 50.00th=[ 107], 60.00th=[ 118], | 70.00th=[ 131], 80.00th=[ 155], 90.00th=[ 194], 95.00th=[ 228], | 99.00th=[ 317], 99.50th=[ 347], 99.90th=[ 456], 99.95th=[ 456], | 99.99th=[ 456] bw ( KiB/s): min= 26, max= 224, per=25.32%, avg=108.12, stdev=47.01, samples=116 iops : min= 1, max= 14, avg= 6.00, stdev= 3.01, samples=116 lat (msec) : 10=5.47%, 20=18.23%, 50=18.36%, 100=27.86%, 250=28.13% lat (msec) : 500=1.95% cpu : usr=0.05%, sys=1.40%, ctx=1436, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=147097: Mon Jan 12 16:57:34 2026 read: IOPS=6, BW=97.5KiB/s (99.9kB/s)(5744KiB/58897msec) clat (msec): min=5, max=234, avg=30.95, stdev=30.90 lat (msec): min=5, max=234, avg=30.95, stdev=30.90 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 12], | 30.00th=[ 14], 40.00th=[ 17], 50.00th=[ 21], 60.00th=[ 26], | 70.00th=[ 32], 80.00th=[ 42], 90.00th=[ 67], 95.00th=[ 88], | 99.00th=[ 167], 99.50th=[ 194], 99.90th=[ 234], 99.95th=[ 234], | 99.99th=[ 234] bw ( KiB/s): min= 27, max= 383, per=27.62%, avg=112.15, stdev=72.80, samples=100 iops : min= 1, max= 23, avg= 6.26, stdev= 4.53, samples=100 write: IOPS=6, BW=111KiB/s (114kB/s)(6544KiB/58897msec); 0 zone resets clat (msec): min=32, max=407, avg=116.17, stdev=58.82 lat (msec): min=32, max=407, avg=116.18, stdev=58.82 clat percentiles (msec): | 1.00th=[ 44], 5.00th=[ 53], 10.00th=[ 63], 20.00th=[ 72], | 30.00th=[ 83], 40.00th=[ 91], 50.00th=[ 100], 60.00th=[ 111], | 70.00th=[ 128], 80.00th=[ 153], 90.00th=[ 190], 95.00th=[ 234], | 99.00th=[ 317], 99.50th=[ 380], 99.90th=[ 409], 99.95th=[ 409], | 99.99th=[ 409] bw ( KiB/s): min= 27, max= 224, per=26.22%, avg=111.95, stdev=48.02, samples=114 iops : min= 1, max= 14, avg= 6.25, stdev= 3.08, samples=114 lat (msec) : 10=5.60%, 20=17.84%, 50=17.97%, 100=30.73%, 250=25.78% lat (msec) : 500=2.08% cpu : usr=0.06%, sys=1.51%, ctx=1482, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=147098: Mon Jan 12 16:57:34 2026 read: IOPS=6, BW=111KiB/s (114kB/s)(6256KiB/56410msec) clat (msec): min=5, max=143, avg=28.14, stdev=23.20 lat (msec): min=5, max=143, avg=28.14, stdev=23.20 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 12], | 30.00th=[ 15], 40.00th=[ 17], 50.00th=[ 21], 60.00th=[ 24], | 70.00th=[ 32], 80.00th=[ 40], 90.00th=[ 61], 95.00th=[ 80], | 99.00th=[ 132], 99.50th=[ 144], 99.90th=[ 144], 99.95th=[ 144], | 99.99th=[ 144] bw ( KiB/s): min= 31, max= 320, per=29.86%, avg=121.23, stdev=73.94, samples=102 iops : min= 1, max= 20, avg= 6.82, stdev= 4.66, samples=102 write: IOPS=6, BW=107KiB/s (109kB/s)(6032KiB/56410msec); 0 zone resets clat (msec): min=37, max=454, avg=119.99, stdev=56.48 lat (msec): min=37, max=454, avg=119.99, stdev=56.48 clat percentiles (msec): | 1.00th=[ 45], 5.00th=[ 54], 10.00th=[ 66], 20.00th=[ 77], | 30.00th=[ 85], 40.00th=[ 94], 50.00th=[ 107], 60.00th=[ 118], | 70.00th=[ 134], 80.00th=[ 157], 90.00th=[ 203], 95.00th=[ 239], | 99.00th=[ 288], 99.50th=[ 313], 99.90th=[ 456], 99.95th=[ 456], | 99.99th=[ 456] bw ( KiB/s): min= 31, max= 224, per=24.83%, avg=106.03, stdev=45.33, samples=111 iops : min= 1, max= 14, avg= 5.87, stdev= 2.90, samples=111 lat (msec) : 10=6.25%, 20=18.49%, 50=20.57%, 100=26.17%, 250=26.82% lat (msec) : 500=1.69% cpu : usr=0.04%, sys=1.46%, ctx=1415, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=147099: Mon Jan 12 16:57:34 2026 read: IOPS=6, BW=104KiB/s (107kB/s)(6032KiB/57751msec) clat (msec): min=5, max=234, avg=28.91, stdev=27.26 lat (msec): min=5, max=234, avg=28.91, stdev=27.26 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=[ 23], | 70.00th=[ 29], 80.00th=[ 40], 90.00th=[ 63], 95.00th=[ 89], | 99.00th=[ 127], 99.50th=[ 155], 99.90th=[ 234], 99.95th=[ 234], | 99.99th=[ 234] bw ( KiB/s): min= 30, max= 288, per=28.68%, avg=116.46, stdev=66.33, samples=101 iops : min= 1, max= 18, avg= 6.53, stdev= 4.16, samples=101 write: IOPS=6, BW=108KiB/s (111kB/s)(6256KiB/57751msec); 0 zone resets clat (msec): min=37, max=344, avg=118.92, stdev=51.58 lat (msec): min=37, max=344, avg=118.93, stdev=51.58 clat percentiles (msec): | 1.00th=[ 43], 5.00th=[ 56], 10.00th=[ 68], 20.00th=[ 79], | 30.00th=[ 87], 40.00th=[ 96], 50.00th=[ 108], 60.00th=[ 121], | 70.00th=[ 138], 80.00th=[ 150], 90.00th=[ 184], 95.00th=[ 220], | 99.00th=[ 305], 99.50th=[ 334], 99.90th=[ 347], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 27, max= 221, per=25.24%, avg=107.76, stdev=42.28, samples=114 iops : min= 1, max= 13, avg= 5.97, stdev= 2.72, samples=114 lat (msec) : 10=6.38%, 20=19.14%, 50=17.84%, 100=26.30%, 250=28.78% lat (msec) : 500=1.56% cpu : usr=0.03%, sys=1.45%, ctx=1342, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=407KiB/s (416kB/s), 97.5KiB/s-111KiB/s (99.9kB/s-114kB/s), io=23.4MiB (24.5MB), run=56410-58897msec WRITE: bw=428KiB/s (438kB/s), 107KiB/s-111KiB/s (109kB/s-114kB/s), io=24.6MiB (25.8MB), run=56410-58897msec 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=147119: Mon Jan 12 16:57:51 2026 read: IOPS=1, BW=1057KiB/s (1082kB/s)(7168KiB/6783msec) clat (usec): min=609, max=3085.4k, avg=846768.53, stdev=1313255.83 lat (usec): min=611, max=3085.4k, avg=846769.76, stdev=1313256.03 clat percentiles (usec): | 1.00th=[ 611], 5.00th=[ 611], 10.00th=[ 611], | 20.00th=[ 627], 30.00th=[ 129500], 40.00th=[ 129500], | 50.00th=[ 130548], 60.00th=[ 177210], 70.00th=[ 177210], | 80.00th=[2399142], 90.00th=[3070231], 95.00th=[3070231], | 99.00th=[3070231], 99.50th=[3070231], 99.90th=[3070231], | 99.95th=[3070231], 99.99th=[3070231] bw ( KiB/s): min= 2011, max= 4087, per=100.00%, avg=3040.25, stdev=1167.58, samples=4 iops : min= 1, max= 3, avg= 2.25, stdev= 0.96, samples=4 write: IOPS=0, BW=755KiB/s (773kB/s)(5120KiB/6783msec); 0 zone resets clat (msec): min=140, max=193, avg=162.44, stdev=19.41 lat (msec): min=140, max=193, avg=162.51, stdev=19.38 clat percentiles (msec): | 1.00th=[ 142], 5.00th=[ 142], 10.00th=[ 142], 20.00th=[ 142], | 30.00th=[ 157], 40.00th=[ 157], 50.00th=[ 159], 60.00th=[ 159], | 70.00th=[ 163], 80.00th=[ 163], 90.00th=[ 194], 95.00th=[ 194], | 99.00th=[ 194], 99.50th=[ 194], 99.90th=[ 194], 99.95th=[ 194], | 99.99th=[ 194] bw ( KiB/s): min= 2043, max= 6144, per=100.00%, avg=4093.50, stdev=2899.84, samples=2 iops : min= 1, max= 6, avg= 3.50, stdev= 3.54, samples=2 lat (usec) : 750=16.67% lat (msec) : 250=66.67%, >=2000=16.67% cpu : usr=0.00%, sys=7.34%, ctx=944, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=147120: Mon Jan 12 16:57:51 2026 read: IOPS=0, BW=272KiB/s (279kB/s)(2048KiB/7528msec) clat (msec): min=220, max=371, avg=296.36, stdev=106.95 lat (msec): min=220, max=371, avg=296.36, stdev=106.95 clat percentiles (msec): | 1.00th=[ 222], 5.00th=[ 222], 10.00th=[ 222], 20.00th=[ 222], | 30.00th=[ 222], 40.00th=[ 222], 50.00th=[ 222], 60.00th=[ 372], | 70.00th=[ 372], 80.00th=[ 372], 90.00th=[ 372], 95.00th=[ 372], | 99.00th=[ 372], 99.50th=[ 372], 99.90th=[ 372], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 1387, max= 2011, per=62.46%, avg=1699.00, stdev=441.23, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1360KiB/s (1393kB/s)(10.0MiB/7528msec); 0 zone resets clat (msec): min=87, max=2568, avg=668.79, stdev=943.90 lat (msec): min=87, max=2568, avg=668.89, stdev=943.90 clat percentiles (msec): | 1.00th=[ 88], 5.00th=[ 88], 10.00th=[ 88], 20.00th=[ 136], | 30.00th=[ 148], 40.00th=[ 174], 50.00th=[ 180], 60.00th=[ 251], | 70.00th=[ 409], 80.00th=[ 418], 90.00th=[ 2333], 95.00th=[ 2567], | 99.00th=[ 2567], 99.50th=[ 2567], 99.90th=[ 2567], 99.95th=[ 2567], | 99.99th=[ 2567] bw ( KiB/s): min= 2007, max= 6119, per=95.77%, avg=3647.00, stdev=2218.51, samples=5 iops : min= 1, max= 5, avg= 2.60, stdev= 2.19, samples=5 lat (msec) : 100=8.33%, 250=41.67%, 500=33.33%, >=2000=16.67% cpu : usr=0.00%, sys=7.08%, ctx=209, 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=147121: Mon Jan 12 16:57:51 2026 read: IOPS=0, BW=945KiB/s (967kB/s)(6144KiB/6503msec) clat (usec): min=443, max=183807, avg=58173.57, stdev=88750.95 lat (usec): min=444, max=183807, avg=58174.58, stdev=88750.97 clat percentiles (usec): | 1.00th=[ 445], 5.00th=[ 445], 10.00th=[ 445], 20.00th=[ 750], | 30.00th=[ 750], 40.00th=[ 1237], 50.00th=[ 1237], 60.00th=[ 1876], | 70.00th=[160433], 80.00th=[160433], 90.00th=[183501], 95.00th=[183501], | 99.00th=[183501], 99.50th=[183501], 99.90th=[183501], 99.95th=[183501], | 99.99th=[183501] bw ( KiB/s): min= 8031, max= 8031, per=100.00%, avg=8031.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=0, BW=945KiB/s (967kB/s)(6144KiB/6503msec); 0 zone resets clat (msec): min=134, max=2713, avg=984.79, stdev=1226.84 lat (msec): min=134, max=2713, avg=984.87, stdev=1226.84 clat percentiles (msec): | 1.00th=[ 136], 5.00th=[ 136], 10.00th=[ 136], 20.00th=[ 155], | 30.00th=[ 155], 40.00th=[ 201], 50.00th=[ 201], 60.00th=[ 296], | 70.00th=[ 2400], 80.00th=[ 2400], 90.00th=[ 2702], 95.00th=[ 2702], | 99.00th=[ 2702], 99.50th=[ 2702], 99.90th=[ 2702], 99.95th=[ 2702], | 99.99th=[ 2702] bw ( KiB/s): min= 2043, max= 4015, per=77.42%, avg=2948.00, stdev=995.93, samples=3 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=3 lat (usec) : 500=8.33%, 1000=8.33% lat (msec) : 2=16.67%, 250=41.67%, 500=8.33%, >=2000=16.67% cpu : usr=0.00%, sys=5.38%, ctx=124, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=147122: Mon Jan 12 16:57:51 2026 read: IOPS=0, BW=806KiB/s (825kB/s)(5120KiB/6354msec) clat (msec): min=3, max=266, avg=135.45, stdev=96.74 lat (msec): min=3, max=266, avg=135.45, stdev=96.74 clat percentiles (msec): | 1.00th=[ 4], 5.00th=[ 4], 10.00th=[ 4], 20.00th=[ 4], | 30.00th=[ 96], 40.00th=[ 96], 50.00th=[ 140], 60.00th=[ 140], | 70.00th=[ 174], 80.00th=[ 174], 90.00th=[ 266], 95.00th=[ 266], | 99.00th=[ 266], 99.50th=[ 266], 99.90th=[ 266], 99.95th=[ 266], | 99.99th=[ 266] bw ( KiB/s): min= 8031, max= 8031, per=100.00%, avg=8031.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=1, BW=1128KiB/s (1155kB/s)(7168KiB/6354msec); 0 zone resets clat (msec): min=98, max=2731, avg=806.29, stdev=1126.47 lat (msec): min=98, max=2731, avg=806.38, stdev=1126.43 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 100], 10.00th=[ 100], 20.00th=[ 118], | 30.00th=[ 171], 40.00th=[ 171], 50.00th=[ 184], 60.00th=[ 203], | 70.00th=[ 203], 80.00th=[ 2140], 90.00th=[ 2735], 95.00th=[ 2735], | 99.00th=[ 2735], 99.50th=[ 2735], 99.90th=[ 2735], 99.95th=[ 2735], | 99.99th=[ 2735] bw ( KiB/s): min= 1380, max= 6131, per=100.00%, avg=4543.33, stdev=2739.53, samples=3 iops : min= 1, max= 5, avg= 3.67, stdev= 2.31, samples=3 lat (msec) : 4=8.33%, 100=16.67%, 250=50.00%, 500=8.33%, >=2000=16.67% cpu : usr=0.00%, sys=5.89%, ctx=129, 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=2721KiB/s (2786kB/s), 272KiB/s-1057KiB/s (279kB/s-1082kB/s), io=20.0MiB (20.0MB), run=6354-7528msec WRITE: bw=3809KiB/s (3900kB/s), 755KiB/s-1360KiB/s (773kB/s-1393kB/s), io=28.0MiB (29.4MB), run=6354-7528msec rand-rw: (groupid=0, jobs=1): err= 0: pid=147124: Mon Jan 12 16:57:52 2026 read: IOPS=0, BW=836KiB/s (856kB/s)(7168KiB/8574msec) clat (msec): min=77, max=3007, avg=1069.15, stdev=1217.82 lat (msec): min=77, max=3007, avg=1069.15, stdev=1217.82 clat percentiles (msec): | 1.00th=[ 79], 5.00th=[ 79], 10.00th=[ 79], 20.00th=[ 90], | 30.00th=[ 209], 40.00th=[ 209], 50.00th=[ 376], 60.00th=[ 1267], | 70.00th=[ 1267], 80.00th=[ 2467], 90.00th=[ 3004], 95.00th=[ 3004], | 99.00th=[ 3004], 99.50th=[ 3004], 99.90th=[ 3004], 99.95th=[ 3004], | 99.99th=[ 3004] bw ( KiB/s): min= 2023, max= 2048, per=85.34%, avg=2037.80, stdev=10.52, samples=5 iops : min= 1, max= 2, avg= 1.40, stdev= 0.55, samples=5 write: IOPS=0, BW=597KiB/s (611kB/s)(5120KiB/8574msec); 0 zone resets clat (msec): min=115, max=267, avg=200.95, stdev=64.84 lat (msec): min=115, max=267, avg=201.02, stdev=64.86 clat percentiles (msec): | 1.00th=[ 116], 5.00th=[ 116], 10.00th=[ 116], 20.00th=[ 116], | 30.00th=[ 163], 40.00th=[ 163], 50.00th=[ 199], 60.00th=[ 199], | 70.00th=[ 262], 80.00th=[ 262], 90.00th=[ 268], 95.00th=[ 268], | 99.00th=[ 268], 99.50th=[ 268], 99.90th=[ 268], 99.95th=[ 268], | 99.99th=[ 268] bw ( KiB/s): min= 2023, max= 6107, per=100.00%, avg=4065.00, stdev=2887.82, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 lat (msec) : 100=16.67%, 250=33.33%, 500=25.00%, 2000=8.33%, >=2000=16.67% cpu : usr=0.00%, sys=1.34%, 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=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=147125: Mon Jan 12 16:57:52 2026 read: IOPS=0, BW=260KiB/s (266kB/s)(2048KiB/7874msec) clat (msec): min=49, max=469, avg=259.87, stdev=296.86 lat (msec): min=49, max=469, avg=259.88, stdev=296.86 clat percentiles (msec): | 1.00th=[ 51], 5.00th=[ 51], 10.00th=[ 51], 20.00th=[ 51], | 30.00th=[ 51], 40.00th=[ 51], 50.00th=[ 51], 60.00th=[ 472], | 70.00th=[ 472], 80.00th=[ 472], 90.00th=[ 472], 95.00th=[ 472], | 99.00th=[ 472], 99.50th=[ 472], 99.90th=[ 472], 99.95th=[ 472], | 99.99th=[ 472] bw ( KiB/s): min= 2027, max= 2039, per=85.13%, avg=2033.00, stdev= 8.49, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1300KiB/s (1332kB/s)(10.0MiB/7874msec); 0 zone resets clat (msec): min=83, max=2801, avg=716.23, stdev=1012.83 lat (msec): min=84, max=2801, avg=716.41, stdev=1012.88 clat percentiles (msec): | 1.00th=[ 85], 5.00th=[ 85], 10.00th=[ 85], 20.00th=[ 140], | 30.00th=[ 148], 40.00th=[ 161], 50.00th=[ 239], 60.00th=[ 334], | 70.00th=[ 401], 80.00th=[ 422], 90.00th=[ 2433], 95.00th=[ 2802], | 99.00th=[ 2802], 99.50th=[ 2802], 99.90th=[ 2802], 99.95th=[ 2802], | 99.99th=[ 2802] bw ( KiB/s): min= 2031, max= 8110, per=100.00%, avg=3649.40, stdev=2637.54, samples=5 iops : min= 1, max= 7, avg= 2.80, stdev= 2.49, samples=5 lat (msec) : 50=8.33%, 100=8.33%, 250=33.33%, 500=33.33%, >=2000=16.67% cpu : usr=0.00%, sys=2.10%, ctx=71, 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=147126: Mon Jan 12 16:57:52 2026 read: IOPS=0, BW=806KiB/s (825kB/s)(6144KiB/7622msec) clat (msec): min=68, max=349, avg=164.82, stdev=100.68 lat (msec): min=68, max=349, avg=164.82, stdev=100.68 clat percentiles (msec): | 1.00th=[ 68], 5.00th=[ 68], 10.00th=[ 68], 20.00th=[ 100], | 30.00th=[ 100], 40.00th=[ 114], 50.00th=[ 114], 60.00th=[ 180], | 70.00th=[ 180], 80.00th=[ 180], 90.00th=[ 351], 95.00th=[ 351], | 99.00th=[ 351], 99.50th=[ 351], 99.90th=[ 351], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 2048, max= 4071, per=100.00%, avg=3380.67, stdev=1154.37, samples=3 iops : min= 2, max= 3, avg= 2.67, stdev= 0.58, samples=3 write: IOPS=0, BW=806KiB/s (825kB/s)(6144KiB/7622msec); 0 zone resets clat (msec): min=119, max=2724, avg=1071.35, stdev=1279.80 lat (msec): min=119, max=2724, avg=1071.45, stdev=1279.79 clat percentiles (msec): | 1.00th=[ 120], 5.00th=[ 120], 10.00th=[ 120], 20.00th=[ 144], | 30.00th=[ 144], 40.00th=[ 351], 50.00th=[ 351], 60.00th=[ 376], | 70.00th=[ 2702], 80.00th=[ 2702], 90.00th=[ 2735], 95.00th=[ 2735], | 99.00th=[ 2735], 99.50th=[ 2735], 99.90th=[ 2735], 99.95th=[ 2735], | 99.99th=[ 2735] bw ( KiB/s): min= 2023, max= 4079, per=91.37%, avg=3055.25, stdev=1177.55, samples=4 iops : min= 1, max= 3, avg= 2.25, stdev= 0.96, samples=4 lat (msec) : 100=16.67%, 250=41.67%, 500=25.00%, >=2000=16.67% cpu : usr=0.00%, sys=1.99%, ctx=104, 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=147127: Mon Jan 12 16:57:52 2026 read: IOPS=0, BW=675KiB/s (691kB/s)(5120KiB/7582msec) clat (msec): min=70, max=125, avg=87.30, stdev=21.85 lat (msec): min=71, max=125, avg=87.36, stdev=21.79 clat percentiles (msec): | 1.00th=[ 71], 5.00th=[ 71], 10.00th=[ 71], 20.00th=[ 71], | 30.00th=[ 80], 40.00th=[ 80], 50.00th=[ 80], 60.00th=[ 80], | 70.00th=[ 82], 80.00th=[ 82], 90.00th=[ 126], 95.00th=[ 126], | 99.00th=[ 126], 99.50th=[ 126], 99.90th=[ 126], 99.95th=[ 126], | 99.99th=[ 126] bw ( KiB/s): min= 2035, max= 6035, per=100.00%, avg=4035.00, stdev=2828.43, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=0, BW=945KiB/s (968kB/s)(7168KiB/7582msec); 0 zone resets clat (msec): min=182, max=2605, avg=983.19, stdev=1106.85 lat (msec): min=182, max=2605, avg=983.39, stdev=1106.78 clat percentiles (msec): | 1.00th=[ 182], 5.00th=[ 182], 10.00th=[ 182], 20.00th=[ 271], | 30.00th=[ 300], 40.00th=[ 300], 50.00th=[ 409], 60.00th=[ 527], | 70.00th=[ 527], 80.00th=[ 2601], 90.00th=[ 2601], 95.00th=[ 2601], | 99.00th=[ 2601], 99.50th=[ 2601], 99.90th=[ 2601], 99.95th=[ 2601], | 99.99th=[ 2601] bw ( KiB/s): min= 2035, max= 4063, per=91.09%, avg=3046.00, stdev=1165.11, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 lat (msec) : 100=33.33%, 250=16.67%, 500=25.00%, 750=8.33%, >=2000=16.67% cpu : usr=0.00%, sys=2.03%, ctx=71, 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=2389KiB/s (2446kB/s), 260KiB/s-836KiB/s (266kB/s-856kB/s), io=20.0MiB (20.0MB), run=7582-8574msec WRITE: bw=3344KiB/s (3424kB/s), 597KiB/s-1300KiB/s (611kB/s-1332kB/s), io=28.0MiB (29.4MB), run=7582-8574msec 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=147133: Mon Jan 12 16:58:04 2026 read: IOPS=1, BW=5603KiB/s (5738kB/s)(12.0MiB/2193msec) clat (msec): min=655, max=786, avg=719.03, stdev=65.61 lat (msec): min=655, max=786, avg=719.03, stdev=65.61 clat percentiles (msec): | 1.00th=[ 659], 5.00th=[ 659], 10.00th=[ 659], 20.00th=[ 659], | 30.00th=[ 659], 40.00th=[ 718], 50.00th=[ 718], 60.00th=[ 718], | 70.00th=[ 785], 80.00th=[ 785], 90.00th=[ 785], 95.00th=[ 785], | 99.00th=[ 785], 99.50th=[ 785], 99.90th=[ 785], 99.95th=[ 785], | 99.99th=[ 785] bw ( KiB/s): min= 5535, max= 8192, per=100.00%, avg=6863.50, stdev=1878.78, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 750=66.67%, 1000=33.33% cpu : usr=0.00%, sys=13.23%, ctx=335, majf=0, minf=7 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=147134: Mon Jan 12 16:58:04 2026 read: IOPS=0, BW=1334KiB/s (1366kB/s)(4096KiB/3071msec) clat (nsec): min=581593k, max=581593k, avg=581592973.00, stdev= 0.00 lat (nsec): min=581596k, max=581596k, avg=581595883.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 584], 5.00th=[ 584], 10.00th=[ 584], 20.00th=[ 584], | 30.00th=[ 584], 40.00th=[ 584], 50.00th=[ 584], 60.00th=[ 584], | 70.00th=[ 584], 80.00th=[ 584], 90.00th=[ 584], 95.00th=[ 584], | 99.00th=[ 584], 99.50th=[ 584], 99.90th=[ 584], 99.95th=[ 584], | 99.99th=[ 584] bw ( KiB/s): min= 5634, max= 5634, per=100.00%, avg=5634.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2668KiB/s (2732kB/s)(8192KiB/3071msec); 0 zone resets clat (msec): min=884, max=1506, avg=1195.53, stdev=439.87 lat (msec): min=884, max=1506, avg=1195.88, stdev=439.82 clat percentiles (msec): | 1.00th=[ 885], 5.00th=[ 885], 10.00th=[ 885], 20.00th=[ 885], | 30.00th=[ 885], 40.00th=[ 885], 50.00th=[ 885], 60.00th=[ 1502], | 70.00th=[ 1502], 80.00th=[ 1502], 90.00th=[ 1502], 95.00th=[ 1502], | 99.00th=[ 1502], 99.50th=[ 1502], 99.90th=[ 1502], 99.95th=[ 1502], | 99.99th=[ 1502] bw ( KiB/s): min= 8192, max= 8192, per=76.78%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 750=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=2.77%, ctx=83, 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=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=147135: Mon Jan 12 16:58:04 2026 write: IOPS=1, BW=4425KiB/s (4531kB/s)(12.0MiB/2777msec); 0 zone resets clat (msec): min=727, max=1255, avg=908.60, stdev=300.46 lat (msec): min=727, max=1255, avg=910.51, stdev=299.21 clat percentiles (msec): | 1.00th=[ 726], 5.00th=[ 726], 10.00th=[ 726], 20.00th=[ 726], | 30.00th=[ 726], 40.00th=[ 743], 50.00th=[ 743], 60.00th=[ 743], | 70.00th=[ 1250], 80.00th=[ 1250], 90.00th=[ 1250], 95.00th=[ 1250], | 99.00th=[ 1250], 99.50th=[ 1250], 99.90th=[ 1250], 99.95th=[ 1250], | 99.99th=[ 1250] bw ( KiB/s): min= 8175, max= 8175, per=76.62%, avg=8175.00, stdev= 0.00, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=66.67%, 2000=33.33% cpu : usr=0.00%, sys=5.01%, ctx=123, majf=0, minf=7 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=147136: Mon Jan 12 16:58:04 2026 write: IOPS=1, BW=6178KiB/s (6326kB/s)(12.0MiB/1989msec); 0 zone resets clat (msec): min=483, max=766, avg=642.21, stdev=144.80 lat (msec): min=483, max=766, avg=642.75, stdev=144.89 clat percentiles (msec): | 1.00th=[ 485], 5.00th=[ 485], 10.00th=[ 485], 20.00th=[ 485], | 30.00th=[ 485], 40.00th=[ 676], 50.00th=[ 676], 60.00th=[ 676], | 70.00th=[ 768], 80.00th=[ 768], 90.00th=[ 768], 95.00th=[ 768], | 99.00th=[ 768], 99.50th=[ 768], 99.90th=[ 768], 99.95th=[ 768], | 99.99th=[ 768] bw ( KiB/s): min= 8175, max= 8192, per=76.70%, avg=8183.50, stdev=12.02, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 500=33.33%, 750=33.33%, 1000=33.33% cpu : usr=0.00%, sys=5.53%, ctx=50, 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=5335KiB/s (5463kB/s), 1334KiB/s-5603KiB/s (1366kB/s-5738kB/s), io=16.0MiB (16.8MB), run=2193-3071msec WRITE: bw=10.4MiB/s (10.9MB/s), 2668KiB/s-6178KiB/s (2732kB/s-6326kB/s), io=32.0MiB (33.6MB), run=1989-3071msec rand-rw: (groupid=0, jobs=1): err= 0: pid=147138: Mon Jan 12 16:58:04 2026 read: IOPS=0, BW=3890KiB/s (3983kB/s)(12.0MiB/3159msec) clat (msec): min=191, max=1548, avg=997.71, stdev=714.04 lat (msec): min=191, max=1548, avg=997.71, stdev=714.04 clat percentiles (msec): | 1.00th=[ 192], 5.00th=[ 192], 10.00th=[ 192], 20.00th=[ 192], | 30.00th=[ 192], 40.00th=[ 1250], 50.00th=[ 1250], 60.00th=[ 1250], | 70.00th=[ 1552], 80.00th=[ 1552], 90.00th=[ 1552], 95.00th=[ 1552], | 99.00th=[ 1552], 99.50th=[ 1552], 99.90th=[ 1552], 99.95th=[ 1552], | 99.99th=[ 1552] bw ( KiB/s): min= 7984, max= 8094, per=100.00%, avg=8039.00, stdev=77.78, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 250=33.33%, 2000=66.67% cpu : usr=0.00%, sys=2.34%, ctx=38, 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=147139: Mon Jan 12 16:58:04 2026 read: IOPS=0, BW=1218KiB/s (1247kB/s)(4096KiB/3363msec) clat (nsec): min=1164.2M, max=1164.2M, avg=1164200632.00, stdev= 0.00 lat (nsec): min=1164.2M, max=1164.2M, avg=1164202847.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1167], 5.00th=[ 1167], 10.00th=[ 1167], 20.00th=[ 1167], | 30.00th=[ 1167], 40.00th=[ 1167], 50.00th=[ 1167], 60.00th=[ 1167], | 70.00th=[ 1167], 80.00th=[ 1167], 90.00th=[ 1167], 95.00th=[ 1167], | 99.00th=[ 1167], 99.50th=[ 1167], 99.90th=[ 1167], 99.95th=[ 1167], | 99.99th=[ 1167] bw ( KiB/s): min= 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=2436KiB/s (2494kB/s)(8192KiB/3363msec); 0 zone resets clat (msec): min=1038, max=1059, avg=1048.81, stdev=14.89 lat (msec): min=1038, max=1059, avg=1049.40, stdev=14.79 clat percentiles (msec): | 1.00th=[ 1036], 5.00th=[ 1036], 10.00th=[ 1036], 20.00th=[ 1036], | 30.00th=[ 1036], 40.00th=[ 1036], 50.00th=[ 1036], 60.00th=[ 1062], | 70.00th=[ 1062], 80.00th=[ 1062], 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= 8159, max= 8159, per=83.74%, avg=8159.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 2000=100.00% cpu : usr=0.00%, sys=3.15%, ctx=65, 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=147140: Mon Jan 12 16:58:04 2026 write: IOPS=1, BW=4205KiB/s (4306kB/s)(12.0MiB/2922msec); 0 zone resets clat (msec): min=258, max=1574, avg=941.32, stdev=659.72 lat (msec): min=258, max=1575, avg=941.69, stdev=659.86 clat percentiles (msec): | 1.00th=[ 259], 5.00th=[ 259], 10.00th=[ 259], 20.00th=[ 259], | 30.00th=[ 259], 40.00th=[ 995], 50.00th=[ 995], 60.00th=[ 995], | 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= 8110, max= 8159, per=83.49%, avg=8134.50, stdev=34.65, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=3.22%, ctx=35, 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=147141: Mon Jan 12 16:58:04 2026 write: IOPS=1, BW=4556KiB/s (4666kB/s)(12.0MiB/2697msec); 0 zone resets clat (msec): min=388, max=1229, avg=879.70, stdev=437.67 lat (msec): min=389, max=1230, avg=880.51, stdev=437.99 clat percentiles (msec): | 1.00th=[ 388], 5.00th=[ 388], 10.00th=[ 388], 20.00th=[ 388], | 30.00th=[ 388], 40.00th=[ 1020], 50.00th=[ 1020], 60.00th=[ 1020], | 70.00th=[ 1234], 80.00th=[ 1234], 90.00th=[ 1234], 95.00th=[ 1234], | 99.00th=[ 1234], 99.50th=[ 1234], 99.90th=[ 1234], 99.95th=[ 1234], | 99.99th=[ 1234] bw ( KiB/s): min= 8110, max= 8159, per=83.49%, avg=8134.50, stdev=34.65, 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=0.07%, sys=2.97%, ctx=40, 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=4872KiB/s (4989kB/s), 1218KiB/s-3890KiB/s (1247kB/s-3983kB/s), io=16.0MiB (16.8MB), run=3159-3363msec WRITE: bw=9744KiB/s (9978kB/s), 2436KiB/s-4556KiB/s (2494kB/s-4666kB/s), io=32.0MiB (33.6MB), run=2697-3363msec