== sanity test 398b: DIO and buffer IO race ============== 19:01:55 (1786834915) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 4.86085 s, 10.4 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=144934: Sat Aug 15 19:03:55 2026 read: IOPS=14, BW=57.5KiB/s (58.9kB/s)(5992KiB/104249msec) clat (usec): min=34, max=237953, avg=33888.84, stdev=24272.69 lat (usec): min=34, max=237954, avg=33902.95, stdev=24276.16 clat percentiles (usec): | 1.00th=[ 56], 5.00th=[ 69], 10.00th=[ 7635], 20.00th=[ 17171], | 30.00th=[ 20841], 40.00th=[ 25560], 50.00th=[ 29492], 60.00th=[ 34341], | 70.00th=[ 40109], 80.00th=[ 50070], 90.00th=[ 63177], 95.00th=[ 76022], | 99.00th=[112722], 99.50th=[141558], 99.90th=[202376], 99.95th=[238027], | 99.99th=[238027] bw ( KiB/s): min= 7, max= 126, per=25.27%, avg=57.61, stdev=22.19, samples=203 iops : min= 1, max= 31, avg=13.76, stdev= 5.56, samples=203 write: IOPS=15, BW=60.4KiB/s (61.8kB/s)(6296KiB/104249msec); 0 zone resets clat (usec): min=1191, max=549478, avg=33746.50, stdev=36813.64 lat (usec): min=1191, max=549480, avg=33751.48, stdev=36811.53 clat percentiles (usec): | 1.00th=[ 1369], 5.00th=[ 1663], 10.00th=[ 2573], 20.00th=[ 4817], | 30.00th=[ 8717], 40.00th=[ 17433], 50.00th=[ 25035], 60.00th=[ 32900], | 70.00th=[ 42730], 80.00th=[ 56361], 90.00th=[ 73925], 95.00th=[ 94897], | 99.00th=[141558], 99.50th=[181404], 99.90th=[375391], 99.95th=[549454], | 99.99th=[549454] bw ( KiB/s): min= 7, max= 136, per=25.10%, avg=59.99, stdev=23.18, samples=205 iops : min= 1, max= 34, avg=14.36, stdev= 5.85, samples=205 lat (usec) : 50=0.26%, 100=3.61%, 250=0.46%, 500=0.33%, 750=0.03% lat (usec) : 1000=0.10% lat (msec) : 2=3.45%, 4=5.50%, 10=7.91%, 20=14.00%, 50=42.02% lat (msec) : 100=19.21%, 250=2.99%, 500=0.10%, 750=0.03% cpu : usr=0.11%, sys=6.92%, ctx=7152, 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=144936: Sat Aug 15 19:03:55 2026 read: IOPS=14, BW=56.8KiB/s (58.2kB/s)(5940KiB/104589msec) clat (usec): min=31, max=524817, avg=34749.37, stdev=30764.23 lat (usec): min=32, max=524820, avg=34752.69, stdev=30763.54 clat percentiles (usec): | 1.00th=[ 56], 5.00th=[ 76], 10.00th=[ 10683], 20.00th=[ 17171], | 30.00th=[ 20841], 40.00th=[ 24249], 50.00th=[ 28181], 60.00th=[ 33817], | 70.00th=[ 40633], 80.00th=[ 49021], 90.00th=[ 63701], 95.00th=[ 77071], | 99.00th=[121111], 99.50th=[185598], 99.90th=[350225], 99.95th=[526386], | 99.99th=[526386] bw ( KiB/s): min= 7, max= 134, per=24.89%, avg=56.75, stdev=20.95, samples=205 iops : min= 1, max= 33, avg=13.55, stdev= 5.28, samples=205 write: IOPS=15, BW=60.7KiB/s (62.2kB/s)(6348KiB/104589msec); 0 zone resets clat (usec): min=1209, max=351740, avg=33115.60, stdev=33835.75 lat (usec): min=1209, max=351741, avg=33120.28, stdev=33833.99 clat percentiles (usec): | 1.00th=[ 1319], 5.00th=[ 1713], 10.00th=[ 2474], 20.00th=[ 4686], | 30.00th=[ 7767], 40.00th=[ 15401], 50.00th=[ 25297], 60.00th=[ 32637], | 70.00th=[ 42730], 80.00th=[ 55837], 90.00th=[ 76022], 95.00th=[100140], | 99.00th=[147850], 99.50th=[170918], 99.90th=[278922], 99.95th=[350225], | 99.99th=[350225] bw ( KiB/s): min= 7, max= 148, per=25.30%, avg=60.46, stdev=24.03, samples=205 iops : min= 1, max= 37, avg=14.48, stdev= 6.05, samples=205 lat (usec) : 50=0.20%, 100=3.09%, 250=0.72%, 500=0.07% lat (msec) : 2=3.68%, 4=5.57%, 10=8.89%, 20=13.54%, 50=42.55% lat (msec) : 100=17.97%, 250=3.52%, 500=0.20%, 750=0.03% cpu : usr=0.10%, sys=6.97%, ctx=7246, 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=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=144937: Sat Aug 15 19:03:55 2026 read: IOPS=14, BW=57.9KiB/s (59.3kB/s)(6028KiB/104054msec) clat (usec): min=28, max=597985, avg=34000.10, stdev=29692.79 lat (usec): min=28, max=597986, avg=34006.32, stdev=29693.47 clat percentiles (usec): | 1.00th=[ 55], 5.00th=[ 67], 10.00th=[ 791], 20.00th=[ 17171], | 30.00th=[ 21103], 40.00th=[ 24511], 50.00th=[ 28443], 60.00th=[ 34341], | 70.00th=[ 41157], 80.00th=[ 50070], 90.00th=[ 61604], 95.00th=[ 71828], | 99.00th=[120062], 99.50th=[158335], 99.90th=[383779], 99.95th=[599786], | 99.99th=[599786] bw ( KiB/s): min= 7, max= 112, per=25.32%, avg=57.73, stdev=22.13, samples=205 iops : min= 1, max= 28, avg=13.79, stdev= 5.58, samples=205 write: IOPS=15, BW=60.2KiB/s (61.6kB/s)(6260KiB/104054msec); 0 zone resets clat (usec): min=1134, max=259498, avg=33502.83, stdev=33021.58 lat (usec): min=1135, max=259622, avg=33506.37, stdev=33026.21 clat percentiles (usec): | 1.00th=[ 1385], 5.00th=[ 1827], 10.00th=[ 2671], 20.00th=[ 4228], | 30.00th=[ 8029], 40.00th=[ 16057], 50.00th=[ 25035], 60.00th=[ 33817], | 70.00th=[ 44827], 80.00th=[ 57410], 90.00th=[ 77071], 95.00th=[ 95945], | 99.00th=[145753], 99.50th=[166724], 99.90th=[210764], 99.95th=[258999], | 99.99th=[258999] bw ( KiB/s): min= 7, max= 120, per=24.94%, avg=59.60, stdev=22.99, samples=206 iops : min= 1, max= 30, avg=14.26, stdev= 5.76, samples=206 lat (usec) : 50=0.33%, 100=3.78%, 250=0.65%, 500=0.03%, 750=0.10% lat (usec) : 1000=0.03% lat (msec) : 2=3.16%, 4=6.45%, 10=7.42%, 20=13.44%, 50=41.54% lat (msec) : 100=20.05%, 250=2.93%, 500=0.07%, 750=0.03% cpu : usr=0.08%, sys=7.10%, ctx=7152, 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=144939: Sat Aug 15 19:03:55 2026 read: IOPS=14, BW=57.6KiB/s (58.0kB/s)(6052KiB/105115msec) clat (usec): min=44, max=608248, avg=34146.71, stdev=26917.69 lat (usec): min=45, max=608249, avg=34152.34, stdev=26917.96 clat percentiles (usec): | 1.00th=[ 57], 5.00th=[ 76], 10.00th=[ 11469], 20.00th=[ 17957], | 30.00th=[ 21627], 40.00th=[ 25035], 50.00th=[ 29230], 60.00th=[ 34866], | 70.00th=[ 42206], 80.00th=[ 49021], 90.00th=[ 61080], 95.00th=[ 72877], | 99.00th=[106431], 99.50th=[130548], 99.90th=[177210], 99.95th=[608175], | 99.99th=[608175] bw ( KiB/s): min= 7, max= 125, per=25.16%, avg=57.35, stdev=21.41, samples=206 iops : min= 1, max= 31, avg=13.70, stdev= 5.39, samples=206 write: IOPS=14, BW=59.3KiB/s (60.7kB/s)(6236KiB/105115msec); 0 zone resets clat (usec): min=1242, max=315158, avg=34044.12, stdev=33355.90 lat (usec): min=1243, max=315161, avg=34049.24, stdev=33353.91 clat percentiles (usec): | 1.00th=[ 1385], 5.00th=[ 1778], 10.00th=[ 2638], 20.00th=[ 4948], | 30.00th=[ 8979], 40.00th=[ 16909], 50.00th=[ 25822], 60.00th=[ 34866], | 70.00th=[ 44827], 80.00th=[ 57934], 90.00th=[ 78119], 95.00th=[ 96994], | 99.00th=[149947], 99.50th=[166724], 99.90th=[200279], 99.95th=[316670], | 99.99th=[316670] bw ( KiB/s): min= 15, max= 134, per=24.48%, avg=58.51, stdev=21.73, samples=208 iops : min= 3, max= 33, avg=13.99, stdev= 5.47, samples=208 lat (usec) : 50=0.13%, 100=3.09%, 250=0.72%, 500=0.07%, 750=0.07% lat (msec) : 2=3.29%, 4=5.24%, 10=8.14%, 20=13.15%, 50=43.82% lat (msec) : 100=19.40%, 250=2.83%, 500=0.03%, 750=0.03% cpu : usr=0.10%, sys=7.15%, ctx=7255, 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=228KiB/s (234kB/s), 56.8KiB/s-57.9KiB/s (58.2kB/s-59.3kB/s), io=23.4MiB (24.6MB), run=104054-105115msec WRITE: bw=239KiB/s (245kB/s), 59.3KiB/s-60.7KiB/s (60.7kB/s-62.2kB/s), io=24.6MiB (25.7MB), run=104054-105115msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144940: Sat Aug 15 19:05:41 2026 read: IOPS=7, BW=28.4KiB/s (29.1kB/s)(5992KiB/210985msec) clat (msec): min=6, max=705, avg=29.46, stdev=33.21 lat (msec): min=6, max=705, avg=29.47, stdev=33.22 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 12], | 30.00th=[ 14], 40.00th=[ 16], 50.00th=[ 19], 60.00th=[ 22], | 70.00th=[ 29], 80.00th=[ 40], 90.00th=[ 66], 95.00th=[ 91], | 99.00th=[ 142], 99.50th=[ 176], 99.90th=[ 245], 99.95th=[ 709], | 99.99th=[ 709] bw ( KiB/s): min= 7, max= 118, per=26.85%, avg=30.34, stdev=19.62, samples=383 iops : min= 1, max= 29, avg= 6.98, stdev= 4.96, samples=383 write: IOPS=7, BW=29.8KiB/s (30.6kB/s)(6296KiB/210985msec); 0 zone resets clat (msec): min=33, max=421, avg=105.78, stdev=47.16 lat (msec): min=33, max=421, avg=105.78, stdev=47.16 clat percentiles (msec): | 1.00th=[ 43], 5.00th=[ 52], 10.00th=[ 59], 20.00th=[ 68], | 30.00th=[ 78], 40.00th=[ 86], 50.00th=[ 94], 60.00th=[ 106], | 70.00th=[ 121], 80.00th=[ 142], 90.00th=[ 169], 95.00th=[ 194], | 99.00th=[ 251], 99.50th=[ 309], 99.90th=[ 393], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 7, max= 56, per=24.68%, avg=29.37, stdev=12.67, samples=415 iops : min= 1, max= 14, avg= 6.73, stdev= 3.22, samples=415 lat (msec) : 10=4.92%, 20=22.17%, 50=16.28%, 100=32.13%, 250=23.96% lat (msec) : 500=0.52%, 750=0.03% cpu : usr=0.05%, sys=1.81%, ctx=5382, 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=144941: Sat Aug 15 19:05:41 2026 read: IOPS=7, BW=28.2KiB/s (28.9kB/s)(5940KiB/210479msec) clat (msec): min=5, max=588, avg=27.80, stdev=29.44 lat (msec): min=5, max=588, avg=27.81, stdev=29.44 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 12], | 30.00th=[ 14], 40.00th=[ 16], 50.00th=[ 19], 60.00th=[ 22], | 70.00th=[ 27], 80.00th=[ 37], 90.00th=[ 58], 95.00th=[ 80], | 99.00th=[ 127], 99.50th=[ 171], 99.90th=[ 249], 99.95th=[ 592], | 99.99th=[ 592] bw ( KiB/s): min= 7, max= 112, per=26.59%, avg=30.04, stdev=19.75, samples=384 iops : min= 1, max= 28, avg= 6.91, stdev= 4.97, samples=384 write: IOPS=7, BW=30.2KiB/s (30.9kB/s)(6348KiB/210479msec); 0 zone resets clat (msec): min=35, max=421, avg=106.44, stdev=48.23 lat (msec): min=35, max=421, avg=106.44, stdev=48.23 clat percentiles (msec): | 1.00th=[ 43], 5.00th=[ 54], 10.00th=[ 60], 20.00th=[ 68], | 30.00th=[ 78], 40.00th=[ 85], 50.00th=[ 95], 60.00th=[ 106], | 70.00th=[ 121], 80.00th=[ 140], 90.00th=[ 169], 95.00th=[ 199], | 99.00th=[ 253], 99.50th=[ 317], 99.90th=[ 393], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 7, max= 56, per=24.99%, avg=29.73, stdev=12.26, samples=414 iops : min= 1, max= 14, avg= 6.83, stdev= 3.14, samples=414 lat (msec) : 10=4.98%, 20=21.32%, 50=17.81%, 100=31.67%, 250=23.63% lat (msec) : 500=0.55%, 750=0.03% cpu : usr=0.06%, sys=1.81%, ctx=5271, 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=144942: Sat Aug 15 19:05:41 2026 read: IOPS=7, BW=28.6KiB/s (29.3kB/s)(6028KiB/210559msec) clat (msec): min=5, max=365, avg=29.54, stdev=29.77 lat (msec): min=5, max=365, avg=29.55, stdev=29.77 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 14], 40.00th=[ 17], 50.00th=[ 19], 60.00th=[ 23], | 70.00th=[ 29], 80.00th=[ 41], 90.00th=[ 64], 95.00th=[ 87], | 99.00th=[ 142], 99.50th=[ 163], 99.90th=[ 338], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 7, max= 119, per=26.49%, avg=29.94, stdev=19.60, samples=392 iops : min= 1, max= 29, avg= 6.88, stdev= 4.94, samples=392 write: IOPS=7, BW=29.7KiB/s (30.4kB/s)(6260KiB/210559msec); 0 zone resets clat (msec): min=33, max=589, avg=105.89, stdev=48.94 lat (msec): min=33, max=589, avg=105.90, stdev=48.94 clat percentiles (msec): | 1.00th=[ 44], 5.00th=[ 53], 10.00th=[ 59], 20.00th=[ 69], | 30.00th=[ 77], 40.00th=[ 85], 50.00th=[ 94], 60.00th=[ 105], | 70.00th=[ 120], 80.00th=[ 138], 90.00th=[ 167], 95.00th=[ 203], | 99.00th=[ 262], 99.50th=[ 305], 99.90th=[ 405], 99.95th=[ 592], | 99.99th=[ 592] bw ( KiB/s): min= 7, max= 64, per=24.83%, avg=29.55, stdev=12.50, samples=412 iops : min= 1, max= 16, avg= 6.78, stdev= 3.18, samples=412 lat (msec) : 10=4.07%, 20=22.14%, 50=17.06%, 100=33.17%, 250=22.79% lat (msec) : 500=0.75%, 750=0.03% cpu : usr=0.06%, sys=1.82%, ctx=5326, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144943: Sat Aug 15 19:05:41 2026 read: IOPS=7, BW=28.9KiB/s (29.6kB/s)(6052KiB/209492msec) clat (msec): min=5, max=367, avg=28.62, stdev=29.22 lat (msec): min=5, max=367, avg=28.62, stdev=29.22 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 12], | 30.00th=[ 14], 40.00th=[ 17], 50.00th=[ 19], 60.00th=[ 22], | 70.00th=[ 28], 80.00th=[ 39], 90.00th=[ 62], 95.00th=[ 84], | 99.00th=[ 131], 99.50th=[ 161], 99.90th=[ 338], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 7, max= 119, per=26.72%, avg=30.19, stdev=19.69, samples=389 iops : min= 1, max= 29, avg= 6.95, stdev= 4.98, samples=389 write: IOPS=7, BW=29.8KiB/s (30.5kB/s)(6236KiB/209492msec); 0 zone resets clat (msec): min=33, max=556, avg=106.39, stdev=48.47 lat (msec): min=33, max=556, avg=106.39, stdev=48.47 clat percentiles (msec): | 1.00th=[ 44], 5.00th=[ 53], 10.00th=[ 61], 20.00th=[ 69], | 30.00th=[ 77], 40.00th=[ 85], 50.00th=[ 94], 60.00th=[ 106], | 70.00th=[ 120], 80.00th=[ 140], 90.00th=[ 169], 95.00th=[ 197], | 99.00th=[ 268], 99.50th=[ 309], 99.90th=[ 401], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 7, max= 56, per=24.57%, avg=29.24, stdev=12.34, samples=413 iops : min= 1, max= 14, avg= 6.70, stdev= 3.14, samples=413 lat (msec) : 10=5.60%, 20=21.68%, 50=16.67%, 100=32.10%, 250=23.14% lat (msec) : 500=0.78%, 750=0.03% cpu : usr=0.06%, sys=1.80%, ctx=5379, 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=114KiB/s (117kB/s), 28.2KiB/s-28.9KiB/s (28.9kB/s-29.6kB/s), io=23.4MiB (24.6MB), run=209492-210985msec WRITE: bw=119KiB/s (122kB/s), 29.7KiB/s-30.2KiB/s (30.4kB/s-30.9kB/s), io=24.6MiB (25.7MB), run=209492-210985msec 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=144989: Sat Aug 15 19:06:13 2026 read: IOPS=15, BW=247KiB/s (253kB/s)(5920KiB/24006msec) clat (usec): min=34, max=173568, avg=33398.98, stdev=27439.08 lat (usec): min=35, max=173569, avg=33400.29, stdev=27439.09 clat percentiles (usec): | 1.00th=[ 38], 5.00th=[ 56], 10.00th=[ 67], 20.00th=[ 99], | 30.00th=[ 21627], 40.00th=[ 26870], 50.00th=[ 31851], 60.00th=[ 35914], | 70.00th=[ 42730], 80.00th=[ 53216], 90.00th=[ 68682], 95.00th=[ 82314], | 99.00th=[126354], 99.50th=[141558], 99.90th=[173016], 99.95th=[173016], | 99.99th=[173016] bw ( KiB/s): min= 95, max= 510, per=25.18%, avg=242.28, stdev=85.73, samples=47 iops : min= 5, max= 31, avg=14.45, stdev= 5.33, samples=47 write: IOPS=16, BW=265KiB/s (272kB/s)(6368KiB/24006msec); 0 zone resets clat (usec): min=1607, max=292578, avg=28885.71, stdev=32927.61 lat (usec): min=1609, max=292582, avg=28888.94, stdev=32927.75 clat percentiles (usec): | 1.00th=[ 1762], 5.00th=[ 2376], 10.00th=[ 3163], 20.00th=[ 5080], | 30.00th=[ 7767], 40.00th=[ 10683], 50.00th=[ 17433], 60.00th=[ 25560], | 70.00th=[ 35914], 80.00th=[ 47449], 90.00th=[ 67634], 95.00th=[ 93848], | 99.00th=[149947], 99.50th=[196084], 99.90th=[291505], 99.95th=[291505], | 99.99th=[291505] bw ( KiB/s): min= 96, max= 480, per=26.04%, avg=263.83, stdev=85.85, samples=47 iops : min= 6, max= 30, avg=15.81, stdev= 5.40, samples=47 lat (usec) : 50=1.95%, 100=7.81%, 250=1.56%, 500=0.26%, 1000=0.13% lat (msec) : 2=1.04%, 4=6.12%, 10=12.89%, 20=9.77%, 50=37.50% lat (msec) : 100=18.36%, 250=2.47%, 500=0.13% cpu : usr=0.11%, sys=8.08%, ctx=1617, 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=144990: Sat Aug 15 19:06:13 2026 read: IOPS=14, BW=231KiB/s (236kB/s)(5744KiB/24874msec) clat (usec): min=43, max=331444, avg=34843.43, stdev=31991.46 lat (usec): min=44, max=331446, avg=34844.76, stdev=31991.49 clat percentiles (usec): | 1.00th=[ 54], 5.00th=[ 63], 10.00th=[ 72], 20.00th=[ 281], | 30.00th=[ 20579], 40.00th=[ 26870], 50.00th=[ 32637], 60.00th=[ 36963], | 70.00th=[ 43779], 80.00th=[ 51643], 90.00th=[ 67634], 95.00th=[ 89654], | 99.00th=[133694], 99.50th=[170918], 99.90th=[333448], 99.95th=[333448], | 99.99th=[333448] bw ( KiB/s): min= 57, max= 505, per=23.75%, avg=228.51, stdev=91.60, samples=49 iops : min= 3, max= 31, avg=13.57, stdev= 5.73, samples=49 write: IOPS=16, BW=263KiB/s (269kB/s)(6544KiB/24874msec); 0 zone resets clat (usec): min=1673, max=199863, avg=29703.74, stdev=29329.06 lat (usec): min=1674, max=199866, avg=29725.38, stdev=29316.48 clat percentiles (usec): | 1.00th=[ 1958], 5.00th=[ 2737], 10.00th=[ 3228], 20.00th=[ 5407], | 30.00th=[ 8455], 40.00th=[ 12387], 50.00th=[ 20317], 60.00th=[ 27919], | 70.00th=[ 40109], 80.00th=[ 53216], 90.00th=[ 70779], 95.00th=[ 85459], | 99.00th=[117965], 99.50th=[137364], 99.90th=[200279], 99.95th=[200279], | 99.99th=[200279] bw ( KiB/s): min= 64, max= 479, per=25.73%, avg=260.61, stdev=95.06, samples=49 iops : min= 4, max= 29, avg=15.57, stdev= 5.95, samples=49 lat (usec) : 50=0.39%, 100=7.16%, 250=1.69%, 500=0.26%, 750=0.13% lat (msec) : 2=0.91%, 4=6.90%, 10=11.59%, 20=10.42%, 50=38.67% lat (msec) : 100=18.75%, 250=2.99%, 500=0.13% cpu : usr=0.07%, sys=8.00%, ctx=1606, 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=144991: Sat Aug 15 19:06:13 2026 read: IOPS=15, BW=255KiB/s (262kB/s)(6256KiB/24486msec) clat (usec): min=34, max=184795, avg=32140.37, stdev=26197.61 lat (usec): min=34, max=184795, avg=32141.61, stdev=26197.60 clat percentiles (usec): | 1.00th=[ 43], 5.00th=[ 62], 10.00th=[ 71], 20.00th=[ 115], | 30.00th=[ 19268], 40.00th=[ 26870], 50.00th=[ 30016], 60.00th=[ 35390], | 70.00th=[ 41157], 80.00th=[ 51119], 90.00th=[ 65799], 95.00th=[ 78119], | 99.00th=[ 95945], 99.50th=[152044], 99.90th=[185598], 99.95th=[185598], | 99.99th=[185598] bw ( KiB/s): min= 95, max= 507, per=26.69%, avg=256.79, stdev=90.71, samples=48 iops : min= 5, max= 31, avg=15.35, stdev= 5.71, samples=48 write: IOPS=15, BW=246KiB/s (252kB/s)(6032KiB/24486msec); 0 zone resets clat (usec): min=1651, max=308929, avg=31182.13, stdev=32557.32 lat (usec): min=1653, max=308930, avg=31186.77, stdev=32556.79 clat percentiles (usec): | 1.00th=[ 1778], 5.00th=[ 2245], 10.00th=[ 3458], 20.00th=[ 5735], | 30.00th=[ 8717], 40.00th=[ 14353], 50.00th=[ 23725], 60.00th=[ 31327], | 70.00th=[ 39584], 80.00th=[ 51643], 90.00th=[ 69731], 95.00th=[ 92799], | 99.00th=[123208], 99.50th=[217056], 99.90th=[308282], 99.95th=[308282], | 99.99th=[308282] bw ( KiB/s): min= 63, max= 416, per=24.09%, avg=244.04, stdev=83.99, samples=48 iops : min= 3, max= 26, avg=14.56, stdev= 5.37, samples=48 lat (usec) : 50=1.04%, 100=8.46%, 250=1.69%, 500=0.26%, 750=0.26% lat (msec) : 2=1.56%, 4=5.34%, 10=9.77%, 20=10.29%, 50=40.36% lat (msec) : 100=18.88%, 250=1.95%, 500=0.13% cpu : usr=0.09%, sys=8.11%, ctx=1678, 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=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=144993: Sat Aug 15 19:06:13 2026 read: IOPS=15, BW=246KiB/s (252kB/s)(6032KiB/24526msec) clat (usec): min=35, max=169910, avg=31946.48, stdev=26524.55 lat (usec): min=35, max=169911, avg=31950.15, stdev=26524.81 clat percentiles (usec): | 1.00th=[ 51], 5.00th=[ 62], 10.00th=[ 68], 20.00th=[ 105], | 30.00th=[ 18482], 40.00th=[ 25560], 50.00th=[ 31065], 60.00th=[ 37487], | 70.00th=[ 43254], 80.00th=[ 50594], 90.00th=[ 64750], 95.00th=[ 77071], | 99.00th=[115868], 99.50th=[156238], 99.90th=[170918], 99.95th=[170918], | 99.99th=[170918] bw ( KiB/s): min= 95, max= 414, per=24.92%, avg=239.73, stdev=78.26, samples=48 iops : min= 5, max= 25, avg=14.29, stdev= 4.93, samples=48 write: IOPS=15, BW=255KiB/s (261kB/s)(6256KiB/24526msec); 0 zone resets clat (usec): min=1636, max=279026, avg=31701.78, stdev=33804.31 lat (usec): min=1638, max=279028, avg=31706.43, stdev=33804.73 clat percentiles (usec): | 1.00th=[ 1778], 5.00th=[ 2409], 10.00th=[ 3228], 20.00th=[ 5473], | 30.00th=[ 7439], 40.00th=[ 10945], 50.00th=[ 21365], 60.00th=[ 28967], | 70.00th=[ 40633], 80.00th=[ 56886], 90.00th=[ 74974], 95.00th=[ 90702], | 99.00th=[129500], 99.50th=[196084], 99.90th=[278922], 99.95th=[278922], | 99.99th=[278922] bw ( KiB/s): min= 126, max= 510, per=24.83%, avg=251.54, stdev=88.39, samples=48 iops : min= 7, max= 31, avg=15.02, stdev= 5.54, samples=48 lat (usec) : 50=0.39%, 100=9.11%, 250=1.95%, 500=0.65%, 1000=0.13% lat (msec) : 2=1.17%, 4=6.12%, 10=12.50%, 20=7.81%, 50=37.37% lat (msec) : 100=19.92%, 250=2.73%, 500=0.13% cpu : usr=0.07%, sys=7.75%, ctx=1593, 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=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=963KiB/s (986kB/s), 231KiB/s-255KiB/s (236kB/s-262kB/s), io=23.4MiB (24.5MB), run=24006-24874msec WRITE: bw=1013KiB/s (1037kB/s), 246KiB/s-265KiB/s (252kB/s-272kB/s), io=24.6MiB (25.8MB), run=24006-24874msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144994: Sat Aug 15 19:06:43 2026 read: IOPS=6, BW=111KiB/s (113kB/s)(5920KiB/53514msec) clat (msec): min=6, max=202, avg=30.73, stdev=28.94 lat (msec): min=6, max=202, avg=30.73, stdev=28.94 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 18], 50.00th=[ 21], 60.00th=[ 24], | 70.00th=[ 29], 80.00th=[ 39], 90.00th=[ 67], 95.00th=[ 99], | 99.00th=[ 148], 99.50th=[ 203], 99.90th=[ 203], 99.95th=[ 203], | 99.99th=[ 203] bw ( KiB/s): min= 30, max= 383, per=26.69%, avg=117.70, stdev=75.84, samples=99 iops : min= 1, max= 23, avg= 6.62, stdev= 4.76, samples=99 write: IOPS=7, BW=119KiB/s (122kB/s)(6368KiB/53514msec); 0 zone resets clat (msec): min=37, max=365, avg=105.47, stdev=53.54 lat (msec): min=37, max=365, avg=105.47, stdev=53.54 clat percentiles (msec): | 1.00th=[ 45], 5.00th=[ 52], 10.00th=[ 58], 20.00th=[ 66], | 30.00th=[ 73], 40.00th=[ 82], 50.00th=[ 88], 60.00th=[ 96], | 70.00th=[ 112], 80.00th=[ 144], 90.00th=[ 180], 95.00th=[ 224], | 99.00th=[ 271], 99.50th=[ 330], 99.90th=[ 368], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 28, max= 224, per=25.52%, avg=118.43, stdev=53.77, samples=106 iops : min= 1, max= 14, avg= 6.64, stdev= 3.43, samples=106 lat (msec) : 10=2.08%, 20=21.22%, 50=19.53%, 100=35.29%, 250=20.83% lat (msec) : 500=1.04% cpu : usr=0.05%, sys=1.97%, ctx=1355, 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=144995: Sat Aug 15 19:06:43 2026 read: IOPS=6, BW=106KiB/s (108kB/s)(5744KiB/54282msec) clat (msec): min=8, max=271, avg=33.40, stdev=35.94 lat (msec): min=8, max=271, avg=33.40, stdev=35.94 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 18], 50.00th=[ 21], 60.00th=[ 25], | 70.00th=[ 31], 80.00th=[ 39], 90.00th=[ 71], 95.00th=[ 120], | 99.00th=[ 184], 99.50th=[ 234], 99.90th=[ 271], 99.95th=[ 271], | 99.99th=[ 271] bw ( KiB/s): min= 28, max= 413, per=26.22%, avg=115.62, stdev=79.50, samples=97 iops : min= 1, max= 25, avg= 6.46, stdev= 4.95, samples=97 write: IOPS=7, BW=121KiB/s (123kB/s)(6544KiB/54282msec); 0 zone resets clat (msec): min=33, max=394, avg=102.56, stdev=51.75 lat (msec): min=33, max=394, avg=102.57, stdev=51.75 clat percentiles (msec): | 1.00th=[ 42], 5.00th=[ 50], 10.00th=[ 54], 20.00th=[ 63], | 30.00th=[ 72], 40.00th=[ 80], 50.00th=[ 86], 60.00th=[ 99], | 70.00th=[ 111], 80.00th=[ 136], 90.00th=[ 180], 95.00th=[ 218], | 99.00th=[ 259], 99.50th=[ 271], 99.90th=[ 393], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 28, max= 287, per=25.97%, avg=120.52, stdev=57.06, samples=106 iops : min= 1, max= 17, avg= 6.77, stdev= 3.63, samples=106 lat (msec) : 10=2.73%, 20=20.05%, 50=19.66%, 100=34.11%, 250=22.66% lat (msec) : 500=0.78% cpu : usr=0.06%, sys=2.10%, ctx=1508, 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=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=144996: Sat Aug 15 19:06:43 2026 read: IOPS=7, BW=120KiB/s (123kB/s)(6256KiB/52006msec) clat (msec): min=7, max=231, avg=30.57, stdev=28.62 lat (msec): min=7, max=231, avg=30.57, stdev=28.62 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 18], 50.00th=[ 21], 60.00th=[ 25], | 70.00th=[ 31], 80.00th=[ 39], 90.00th=[ 63], 95.00th=[ 87], | 99.00th=[ 161], 99.50th=[ 199], 99.90th=[ 232], 99.95th=[ 232], | 99.99th=[ 232] bw ( KiB/s): min= 31, max= 412, per=28.98%, avg=127.78, stdev=83.98, samples=97 iops : min= 1, max= 25, avg= 7.24, stdev= 5.34, samples=97 write: IOPS=7, BW=116KiB/s (119kB/s)(6032KiB/52006msec); 0 zone resets clat (msec): min=37, max=391, avg=105.57, stdev=55.89 lat (msec): min=37, max=391, avg=105.58, stdev=55.89 clat percentiles (msec): | 1.00th=[ 43], 5.00th=[ 53], 10.00th=[ 58], 20.00th=[ 66], | 30.00th=[ 71], 40.00th=[ 81], 50.00th=[ 89], 60.00th=[ 100], | 70.00th=[ 112], 80.00th=[ 133], 90.00th=[ 192], 95.00th=[ 239], | 99.00th=[ 292], 99.50th=[ 334], 99.90th=[ 393], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 30, max= 224, per=24.93%, avg=115.67, stdev=53.73, samples=103 iops : min= 1, max= 14, avg= 6.48, stdev= 3.43, samples=103 lat (msec) : 10=2.34%, 20=22.66%, 50=20.31%, 100=33.98%, 250=18.88% lat (msec) : 500=1.82% cpu : usr=0.06%, sys=2.10%, ctx=1505, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144997: Sat Aug 15 19:06:43 2026 read: IOPS=7, BW=113KiB/s (116kB/s)(6032KiB/53276msec) clat (msec): min=7, max=249, avg=31.72, stdev=31.69 lat (msec): min=7, max=249, avg=31.73, stdev=31.68 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 18], 50.00th=[ 20], 60.00th=[ 25], | 70.00th=[ 31], 80.00th=[ 41], 90.00th=[ 67], 95.00th=[ 100], | 99.00th=[ 188], 99.50th=[ 197], 99.90th=[ 251], 99.95th=[ 251], | 99.99th=[ 251] bw ( KiB/s): min= 31, max= 383, per=26.94%, avg=118.80, stdev=84.33, samples=99 iops : min= 1, max= 23, avg= 6.68, stdev= 5.29, samples=99 write: IOPS=7, BW=117KiB/s (120kB/s)(6256KiB/53276msec); 0 zone resets clat (msec): min=38, max=397, avg=104.95, stdev=55.41 lat (msec): min=38, max=397, avg=104.95, stdev=55.41 clat percentiles (msec): | 1.00th=[ 45], 5.00th=[ 54], 10.00th=[ 59], 20.00th=[ 66], | 30.00th=[ 72], 40.00th=[ 81], 50.00th=[ 88], 60.00th=[ 99], | 70.00th=[ 110], 80.00th=[ 131], 90.00th=[ 178], 95.00th=[ 234], | 99.00th=[ 330], 99.50th=[ 351], 99.90th=[ 397], 99.95th=[ 397], | 99.99th=[ 397] bw ( KiB/s): min= 28, max= 255, per=25.41%, avg=117.91, stdev=54.60, samples=104 iops : min= 1, max= 15, avg= 6.62, stdev= 3.49, samples=104 lat (msec) : 10=2.21%, 20=23.05%, 50=17.19%, 100=35.81%, 250=20.31% lat (msec) : 500=1.43% cpu : usr=0.04%, sys=2.18%, ctx=1462, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=441KiB/s (452kB/s), 106KiB/s-120KiB/s (108kB/s-123kB/s), io=23.4MiB (24.5MB), run=52006-54282msec WRITE: bw=464KiB/s (475kB/s), 116KiB/s-121KiB/s (119kB/s-123kB/s), io=24.6MiB (25.8MB), run=52006-54282msec 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=145020: Sat Aug 15 19:06:55 2026 read: IOPS=2, BW=2126KiB/s (2177kB/s)(7168KiB/3371msec) clat (usec): min=518, max=426685, avg=163328.81, stdev=145433.90 lat (usec): min=519, max=426687, avg=163330.34, stdev=145434.12 clat percentiles (usec): | 1.00th=[ 519], 5.00th=[ 519], 10.00th=[ 519], 20.00th=[ 1045], | 30.00th=[149947], 40.00th=[149947], 50.00th=[158335], 60.00th=[175113], | 70.00th=[175113], 80.00th=[229639], 90.00th=[425722], 95.00th=[425722], | 99.00th=[425722], 99.50th=[425722], 99.90th=[425722], 99.95th=[425722], | 99.99th=[425722] bw ( KiB/s): min= 2035, max= 4087, per=55.70%, avg=2726.00, stdev=964.29, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 0.82, samples=4 write: IOPS=1, BW=1519KiB/s (1555kB/s)(5120KiB/3371msec); 0 zone resets clat (msec): min=251, max=554, avg=398.21, stdev=140.10 lat (msec): min=251, max=554, avg=398.42, stdev=139.95 clat percentiles (msec): | 1.00th=[ 251], 5.00th=[ 251], 10.00th=[ 251], 20.00th=[ 251], | 30.00th=[ 292], 40.00th=[ 292], 50.00th=[ 359], 60.00th=[ 359], | 70.00th=[ 535], 80.00th=[ 535], 90.00th=[ 558], 95.00th=[ 558], | 99.00th=[ 558], 99.50th=[ 558], 99.90th=[ 558], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 1928, max= 2048, per=29.37%, avg=2012.50, stdev=56.60, samples=4 iops : min= 1, max= 2, avg= 1.25, stdev= 0.50, samples=4 lat (usec) : 750=8.33% lat (msec) : 2=8.33%, 250=33.33%, 500=33.33%, 750=16.67% cpu : usr=0.00%, sys=18.28%, ctx=236, 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=145021: Sat Aug 15 19:06:55 2026 read: IOPS=0, BW=489KiB/s (501kB/s)(2048KiB/4184msec) clat (msec): min=137, max=474, avg=305.92, stdev=237.96 lat (msec): min=137, max=474, avg=305.93, stdev=237.95 clat percentiles (msec): | 1.00th=[ 138], 5.00th=[ 138], 10.00th=[ 138], 20.00th=[ 138], | 30.00th=[ 138], 40.00th=[ 138], 50.00th=[ 138], 60.00th=[ 477], | 70.00th=[ 477], 80.00th=[ 477], 90.00th=[ 477], 95.00th=[ 477], | 99.00th=[ 477], 99.50th=[ 477], 99.90th=[ 477], 99.95th=[ 477], | 99.99th=[ 477] bw ( KiB/s): min= 1903, max= 2048, per=40.37%, avg=1975.50, stdev=102.53, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 write: IOPS=2, BW=2447KiB/s (2506kB/s)(10.0MiB/4184msec); 0 zone resets clat (msec): min=133, max=828, avg=350.18, stdev=242.42 lat (msec): min=133, max=828, avg=350.38, stdev=242.52 clat percentiles (msec): | 1.00th=[ 134], 5.00th=[ 134], 10.00th=[ 134], 20.00th=[ 144], | 30.00th=[ 178], 40.00th=[ 180], 50.00th=[ 211], 60.00th=[ 218], | 70.00th=[ 481], 80.00th=[ 535], 90.00th=[ 600], 95.00th=[ 827], | 99.00th=[ 827], 99.50th=[ 827], 99.90th=[ 827], 99.95th=[ 827], | 99.99th=[ 827] bw ( KiB/s): min= 1903, max= 6144, per=44.11%, avg=3022.50, stdev=1745.68, samples=6 iops : min= 1, max= 6, avg= 2.17, stdev= 2.04, samples=6 lat (msec) : 250=58.33%, 500=16.67%, 750=16.67%, 1000=8.33% cpu : usr=0.00%, sys=16.35%, ctx=153, 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=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=145022: Sat Aug 15 19:06:55 2026 read: IOPS=1, BW=1963KiB/s (2010kB/s)(6144KiB/3130msec) clat (usec): min=498, max=303525, avg=122476.91, stdev=129709.32 lat (usec): min=500, max=303526, avg=122477.96, stdev=129709.18 clat percentiles (usec): | 1.00th=[ 498], 5.00th=[ 498], 10.00th=[ 498], 20.00th=[ 1598], | 30.00th=[ 1598], 40.00th=[ 36963], 50.00th=[ 36963], 60.00th=[154141], | 70.00th=[238027], 80.00th=[238027], 90.00th=[304088], 95.00th=[304088], | 99.00th=[304088], 99.50th=[304088], 99.90th=[304088], 99.95th=[304088], | 99.99th=[304088] bw ( KiB/s): min= 2023, max= 5829, per=67.43%, avg=3300.00, stdev=2190.21, samples=3 iops : min= 1, max= 5, avg= 2.67, stdev= 2.08, samples=3 write: IOPS=1, BW=1963KiB/s (2010kB/s)(6144KiB/3130msec); 0 zone resets clat (msec): min=135, max=647, avg=361.72, stdev=180.19 lat (msec): min=135, max=647, avg=361.80, stdev=180.20 clat percentiles (msec): | 1.00th=[ 136], 5.00th=[ 136], 10.00th=[ 136], 20.00th=[ 266], | 30.00th=[ 266], 40.00th=[ 271], 50.00th=[ 271], 60.00th=[ 388], | 70.00th=[ 464], 80.00th=[ 464], 90.00th=[ 651], 95.00th=[ 651], | 99.00th=[ 651], 99.50th=[ 651], 99.90th=[ 651], 99.95th=[ 651], | 99.99th=[ 651] bw ( KiB/s): min= 2023, max= 3886, per=35.14%, avg=2407.80, stdev=826.39, samples=5 iops : min= 1, max= 3, avg= 1.60, stdev= 0.89, samples=5 lat (usec) : 500=8.33% lat (msec) : 2=8.33%, 50=8.33%, 250=25.00%, 500=41.67%, 750=8.33% cpu : usr=0.03%, sys=18.86%, ctx=215, 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=145023: Sat Aug 15 19:06:55 2026 read: IOPS=1, BW=1273KiB/s (1304kB/s)(5120KiB/4022msec) clat (usec): min=538, max=264959, avg=151341.14, stdev=97720.52 lat (usec): min=539, max=264960, avg=151342.31, stdev=97720.52 clat percentiles (usec): | 1.00th=[ 537], 5.00th=[ 537], 10.00th=[ 537], 20.00th=[ 537], | 30.00th=[127402], 40.00th=[127402], 50.00th=[177210], 60.00th=[177210], | 70.00th=[187696], 80.00th=[187696], 90.00th=[265290], 95.00th=[265290], | 99.00th=[265290], 99.50th=[265290], 99.90th=[265290], 99.95th=[265290], | 99.99th=[265290] bw ( KiB/s): min= 4087, max= 4096, per=83.60%, avg=4091.50, stdev= 6.36, samples=2 iops : min= 3, max= 4, avg= 3.50, stdev= 0.71, samples=2 write: IOPS=1, BW=1782KiB/s (1825kB/s)(7168KiB/4022msec); 0 zone resets clat (msec): min=149, max=668, avg=432.25, stdev=206.51 lat (msec): min=150, max=668, avg=432.34, stdev=206.50 clat percentiles (msec): | 1.00th=[ 150], 5.00th=[ 150], 10.00th=[ 150], 20.00th=[ 234], | 30.00th=[ 288], 40.00th=[ 288], 50.00th=[ 485], 60.00th=[ 592], | 70.00th=[ 592], 80.00th=[ 617], 90.00th=[ 667], 95.00th=[ 667], | 99.00th=[ 667], 99.50th=[ 667], 99.90th=[ 667], 99.95th=[ 667], | 99.99th=[ 667] bw ( KiB/s): min= 2023, max= 2048, per=29.76%, avg=2039.20, stdev= 9.60, samples=5 iops : min= 1, max= 2, avg= 1.20, stdev= 0.45, samples=5 lat (usec) : 750=8.33% lat (msec) : 250=41.67%, 500=25.00%, 750=25.00% cpu : usr=0.00%, sys=16.59%, ctx=179, 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=4895KiB/s (5012kB/s), 489KiB/s-2126KiB/s (501kB/s-2177kB/s), io=20.0MiB (20.0MB), run=3130-4184msec WRITE: bw=6853KiB/s (7017kB/s), 1519KiB/s-2447KiB/s (1555kB/s-2506kB/s), io=28.0MiB (29.4MB), run=3130-4184msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145015: Sat Aug 15 19:06:55 2026 read: IOPS=2, BW=2119KiB/s (2170kB/s)(7168KiB/3382msec) clat (msec): min=74, max=382, avg=220.00, stdev=113.65 lat (msec): min=74, max=382, avg=220.00, stdev=113.65 clat percentiles (msec): | 1.00th=[ 75], 5.00th=[ 75], 10.00th=[ 75], 20.00th=[ 117], | 30.00th=[ 176], 40.00th=[ 176], 50.00th=[ 178], 60.00th=[ 292], | 70.00th=[ 292], 80.00th=[ 326], 90.00th=[ 384], 95.00th=[ 384], | 99.00th=[ 384], 99.50th=[ 384], 99.90th=[ 384], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 1818, max= 4007, per=50.73%, avg=2341.80, stdev=934.34, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 write: IOPS=1, BW=1514KiB/s (1550kB/s)(5120KiB/3382msec); 0 zone resets clat (msec): min=167, max=513, avg=335.27, stdev=125.34 lat (msec): min=167, max=513, avg=335.39, stdev=125.37 clat percentiles (msec): | 1.00th=[ 167], 5.00th=[ 167], 10.00th=[ 167], 20.00th=[ 167], | 30.00th=[ 288], 40.00th=[ 288], 50.00th=[ 342], 60.00th=[ 342], | 70.00th=[ 368], 80.00th=[ 368], 90.00th=[ 514], 95.00th=[ 514], | 99.00th=[ 514], 99.50th=[ 514], 99.90th=[ 514], 99.95th=[ 514], | 99.99th=[ 514] bw ( KiB/s): min= 1906, max= 2035, per=30.48%, avg=1969.75, stdev=59.54, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 lat (msec) : 100=8.33%, 250=33.33%, 500=50.00%, 750=8.33% cpu : usr=0.00%, sys=5.94%, ctx=80, 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=145016: Sat Aug 15 19:06:55 2026 read: IOPS=0, BW=488KiB/s (500kB/s)(2048KiB/4198msec) clat (msec): min=84, max=531, avg=308.12, stdev=316.12 lat (msec): min=84, max=531, avg=308.13, stdev=316.12 clat percentiles (msec): | 1.00th=[ 85], 5.00th=[ 85], 10.00th=[ 85], 20.00th=[ 85], | 30.00th=[ 85], 40.00th=[ 85], 50.00th=[ 85], 60.00th=[ 531], | 70.00th=[ 531], 80.00th=[ 531], 90.00th=[ 531], 95.00th=[ 531], | 99.00th=[ 531], 99.50th=[ 531], 99.90th=[ 531], 99.95th=[ 531], | 99.99th=[ 531] bw ( KiB/s): min= 1831, max= 1935, per=40.79%, avg=1883.00, stdev=73.54, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2439KiB/s (2498kB/s)(10.0MiB/4198msec); 0 zone resets clat (msec): min=128, max=543, avg=354.85, stdev=151.06 lat (msec): min=129, max=543, avg=354.98, stdev=151.09 clat percentiles (msec): | 1.00th=[ 129], 5.00th=[ 129], 10.00th=[ 129], 20.00th=[ 165], | 30.00th=[ 194], 40.00th=[ 326], 50.00th=[ 368], 60.00th=[ 380], | 70.00th=[ 418], 80.00th=[ 510], 90.00th=[ 518], 95.00th=[ 542], | 99.00th=[ 542], 99.50th=[ 542], 99.90th=[ 542], 99.95th=[ 542], | 99.99th=[ 542] bw ( KiB/s): min= 1831, max= 6131, per=39.78%, avg=2571.00, stdev=1571.92, samples=7 iops : min= 1, max= 5, avg= 1.71, stdev= 1.50, samples=7 lat (msec) : 100=8.33%, 250=25.00%, 500=33.33%, 750=33.33% cpu : usr=0.00%, sys=5.60%, ctx=85, 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=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=145017: Sat Aug 15 19:06:55 2026 read: IOPS=1, BW=1385KiB/s (1418kB/s)(6144KiB/4436msec) clat (msec): min=37, max=881, avg=380.45, stdev=293.56 lat (msec): min=37, max=881, avg=380.45, stdev=293.56 clat percentiles (msec): | 1.00th=[ 38], 5.00th=[ 38], 10.00th=[ 38], 20.00th=[ 197], | 30.00th=[ 197], 40.00th=[ 309], 50.00th=[ 309], 60.00th=[ 338], | 70.00th=[ 523], 80.00th=[ 523], 90.00th=[ 885], 95.00th=[ 885], | 99.00th=[ 885], 99.50th=[ 885], 99.90th=[ 885], 99.95th=[ 885], | 99.99th=[ 885] bw ( KiB/s): min= 1906, max= 2048, per=42.92%, avg=1981.00, stdev=71.05, samples=4 iops : min= 1, max= 2, avg= 1.25, stdev= 0.50, samples=4 write: IOPS=1, BW=1385KiB/s (1418kB/s)(6144KiB/4436msec); 0 zone resets clat (msec): min=153, max=489, avg=336.92, stdev=133.37 lat (msec): min=153, max=489, avg=337.02, stdev=133.39 clat percentiles (msec): | 1.00th=[ 155], 5.00th=[ 155], 10.00th=[ 155], 20.00th=[ 205], | 30.00th=[ 205], 40.00th=[ 330], 50.00th=[ 330], 60.00th=[ 422], | 70.00th=[ 422], 80.00th=[ 422], 90.00th=[ 489], 95.00th=[ 489], | 99.00th=[ 489], 99.50th=[ 489], 99.90th=[ 489], 99.95th=[ 489], | 99.99th=[ 489] bw ( KiB/s): min= 1831, max= 2048, per=30.51%, avg=1972.00, stdev=90.87, samples=5 iops : min= 1, max= 2, avg= 1.20, stdev= 0.45, samples=5 lat (msec) : 50=8.33%, 250=25.00%, 500=50.00%, 750=8.33%, 1000=8.33% cpu : usr=0.00%, sys=4.08%, ctx=69, 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=145018: Sat Aug 15 19:06:55 2026 read: IOPS=1, BW=1397KiB/s (1430kB/s)(5120KiB/3666msec) clat (msec): min=129, max=233, avg=188.83, stdev=45.19 lat (msec): min=129, max=233, avg=188.83, stdev=45.19 clat percentiles (msec): | 1.00th=[ 130], 5.00th=[ 130], 10.00th=[ 130], 20.00th=[ 130], | 30.00th=[ 157], 40.00th=[ 157], 50.00th=[ 199], 60.00th=[ 199], | 70.00th=[ 226], 80.00th=[ 226], 90.00th=[ 234], 95.00th=[ 234], | 99.00th=[ 234], 99.50th=[ 234], 99.90th=[ 234], 99.95th=[ 234], | 99.99th=[ 234] bw ( KiB/s): min= 1906, max= 6107, per=86.80%, avg=4006.50, stdev=2970.56, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=1, BW=1955KiB/s (2002kB/s)(7168KiB/3666msec); 0 zone resets clat (msec): min=197, max=691, avg=361.34, stdev=165.63 lat (msec): min=197, max=691, avg=361.87, stdev=165.61 clat percentiles (msec): | 1.00th=[ 199], 5.00th=[ 199], 10.00th=[ 199], 20.00th=[ 228], | 30.00th=[ 288], 40.00th=[ 288], 50.00th=[ 317], 60.00th=[ 393], | 70.00th=[ 393], 80.00th=[ 418], 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= 1865, max= 4087, per=42.95%, avg=2776.00, stdev=1197.03, samples=5 iops : min= 1, max= 3, avg= 1.80, stdev= 1.10, samples=5 lat (msec) : 250=58.33%, 500=33.33%, 750=8.33% cpu : usr=0.03%, sys=7.59%, ctx=119, 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=4617KiB/s (4728kB/s), 488KiB/s-2119KiB/s (500kB/s-2170kB/s), io=20.0MiB (20.0MB), run=3382-4436msec WRITE: bw=6463KiB/s (6619kB/s), 1385KiB/s-2439KiB/s (1418kB/s-2498kB/s), io=28.0MiB (29.4MB), run=3382-4436msec 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=145030: Sat Aug 15 19:07:08 2026 read: IOPS=2, BW=10.1MiB/s (10.6MB/s)(12.0MiB/1190msec) clat (msec): min=206, max=595, avg=338.65, stdev=222.78 lat (msec): min=206, max=595, avg=338.65, stdev=222.78 clat percentiles (msec): | 1.00th=[ 207], 5.00th=[ 207], 10.00th=[ 207], 20.00th=[ 207], | 30.00th=[ 207], 40.00th=[ 213], 50.00th=[ 213], 60.00th=[ 213], | 70.00th=[ 600], 80.00th=[ 600], 90.00th=[ 600], 95.00th=[ 600], | 99.00th=[ 600], 99.50th=[ 600], 99.90th=[ 600], 99.95th=[ 600], | 99.99th=[ 600] bw ( KiB/s): min=12263, max=12263, per=100.00%, avg=12263.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 250=66.67%, 750=33.33% cpu : usr=0.00%, sys=11.61%, ctx=53, 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=145031: Sat Aug 15 19:07:08 2026 read: IOPS=0, BW=1084KiB/s (1110kB/s)(4096KiB/3778msec) clat (nsec): min=1439.0M, max=1439.0M, avg=1439024773.00, stdev= 0.00 lat (nsec): min=1439.0M, max=1439.0M, avg=1439031265.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1435], 5.00th=[ 1435], 10.00th=[ 1435], 20.00th=[ 1435], | 30.00th=[ 1435], 40.00th=[ 1435], 50.00th=[ 1435], 60.00th=[ 1435], | 70.00th=[ 1435], 80.00th=[ 1435], 90.00th=[ 1435], 95.00th=[ 1435], | 99.00th=[ 1435], 99.50th=[ 1435], 99.90th=[ 1435], 99.95th=[ 1435], | 99.99th=[ 1435] bw ( KiB/s): min= 7953, max= 7953, per=100.00%, avg=7953.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2168KiB/s (2220kB/s)(8192KiB/3778msec); 0 zone resets clat (msec): min=432, max=1834, avg=1133.53, stdev=991.03 lat (msec): min=433, max=1834, avg=1133.92, stdev=990.98 clat percentiles (msec): | 1.00th=[ 435], 5.00th=[ 435], 10.00th=[ 435], 20.00th=[ 435], | 30.00th=[ 435], 40.00th=[ 435], 50.00th=[ 435], 60.00th=[ 1838], | 70.00th=[ 1838], 80.00th=[ 1838], 90.00th=[ 1838], 95.00th=[ 1838], | 99.00th=[ 1838], 99.50th=[ 1838], 99.90th=[ 1838], 99.95th=[ 1838], | 99.99th=[ 1838] bw ( KiB/s): min= 8175, max= 8175, per=94.26%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.00%, sys=3.07%, ctx=51, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=145032: Sat Aug 15 19:07:08 2026 write: IOPS=0, BW=3380KiB/s (3461kB/s)(12.0MiB/3636msec); 0 zone resets clat (msec): min=505, max=1901, avg=1158.69, stdev=702.06 lat (msec): min=505, max=1901, avg=1159.06, stdev=702.12 clat percentiles (msec): | 1.00th=[ 506], 5.00th=[ 506], 10.00th=[ 506], 20.00th=[ 506], | 30.00th=[ 506], 40.00th=[ 1070], 50.00th=[ 1070], 60.00th=[ 1070], | 70.00th=[ 1905], 80.00th=[ 1905], 90.00th=[ 1905], 95.00th=[ 1905], | 99.00th=[ 1905], 99.50th=[ 1905], 99.90th=[ 1905], 99.95th=[ 1905], | 99.99th=[ 1905] bw ( KiB/s): min= 7953, max= 8143, per=92.79%, avg=8048.00, stdev=134.35, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 2000=66.67% cpu : usr=0.00%, sys=6.90%, ctx=65, 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=145034: Sat Aug 15 19:07:08 2026 write: IOPS=1, BW=4400KiB/s (4505kB/s)(12.0MiB/2793msec); 0 zone resets clat (msec): min=315, max=1450, avg=880.45, stdev=567.54 lat (msec): min=317, max=1450, avg=881.72, stdev=566.50 clat percentiles (msec): | 1.00th=[ 317], 5.00th=[ 317], 10.00th=[ 317], 20.00th=[ 317], | 30.00th=[ 317], 40.00th=[ 877], 50.00th=[ 877], 60.00th=[ 877], | 70.00th=[ 1452], 80.00th=[ 1452], 90.00th=[ 1452], 95.00th=[ 1452], | 99.00th=[ 1452], 99.50th=[ 1452], 99.90th=[ 1452], 99.95th=[ 1452], | 99.99th=[ 1452] bw ( KiB/s): min= 8159, max= 8175, per=94.17%, avg=8167.00, stdev=11.31, 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=6.16%, ctx=67, 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=4337KiB/s (4441kB/s), 1084KiB/s-10.1MiB/s (1110kB/s-10.6MB/s), io=16.0MiB (16.8MB), run=1190-3778msec WRITE: bw=8673KiB/s (8882kB/s), 2168KiB/s-4400KiB/s (2220kB/s-4505kB/s), io=32.0MiB (33.6MB), run=2793-3778msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145033: Sat Aug 15 19:07:08 2026 read: IOPS=1, BW=5194KiB/s (5318kB/s)(12.0MiB/2366msec) clat (msec): min=687, max=829, avg=772.29, stdev=74.82 lat (msec): min=687, max=829, avg=772.30, stdev=74.82 clat percentiles (msec): | 1.00th=[ 684], 5.00th=[ 684], 10.00th=[ 684], 20.00th=[ 684], | 30.00th=[ 684], 40.00th=[ 802], 50.00th=[ 802], 60.00th=[ 802], | 70.00th=[ 827], 80.00th=[ 827], 90.00th=[ 827], 95.00th=[ 827], | 99.00th=[ 827], 99.50th=[ 827], 99.90th=[ 827], 99.95th=[ 827], | 99.99th=[ 827] bw ( KiB/s): min= 8062, max= 8078, per=100.00%, avg=8070.00, stdev=11.31, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 1000=66.67% cpu : usr=0.00%, sys=16.87%, ctx=332, 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=145035: Sat Aug 15 19:07:08 2026 read: IOPS=0, BW=1542KiB/s (1579kB/s)(4096KiB/2657msec) clat (nsec): min=751862k, max=751862k, avg=751861809.00, stdev= 0.00 lat (nsec): min=751864k, max=751864k, avg=751864094.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 751], 5.00th=[ 751], 10.00th=[ 751], 20.00th=[ 751], | 30.00th=[ 751], 40.00th=[ 751], 50.00th=[ 751], 60.00th=[ 751], | 70.00th=[ 751], 80.00th=[ 751], 90.00th=[ 751], 95.00th=[ 751], | 99.00th=[ 751], 99.50th=[ 751], 99.90th=[ 751], 99.95th=[ 751], | 99.99th=[ 751] bw ( KiB/s): min= 8062, max= 8062, per=100.00%, avg=8062.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3083KiB/s (3157kB/s)(8192KiB/2657msec); 0 zone resets clat (msec): min=655, max=1168, avg=911.91, stdev=363.15 lat (msec): min=657, max=1169, avg=913.11, stdev=362.04 clat percentiles (msec): | 1.00th=[ 659], 5.00th=[ 659], 10.00th=[ 659], 20.00th=[ 659], | 30.00th=[ 659], 40.00th=[ 659], 50.00th=[ 659], 60.00th=[ 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= 8126, max= 8126, per=91.58%, avg=8126.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=5.65%, ctx=100, 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=145036: Sat Aug 15 19:07:08 2026 write: IOPS=0, BW=3327KiB/s (3407kB/s)(12.0MiB/3693msec); 0 zone resets clat (msec): min=395, max=1685, avg=1187.19, stdev=693.29 lat (msec): min=395, max=1685, avg=1187.59, stdev=693.33 clat percentiles (msec): | 1.00th=[ 397], 5.00th=[ 397], 10.00th=[ 397], 20.00th=[ 397], | 30.00th=[ 397], 40.00th=[ 1485], 50.00th=[ 1485], 60.00th=[ 1485], | 70.00th=[ 1687], 80.00th=[ 1687], 90.00th=[ 1687], 95.00th=[ 1687], | 99.00th=[ 1687], 99.50th=[ 1687], 99.90th=[ 1687], 99.95th=[ 1687], | 99.99th=[ 1687] bw ( KiB/s): min= 8078, max= 8192, per=91.68%, avg=8135.00, stdev=80.61, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.00%, sys=2.76%, ctx=36, 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=145037: Sat Aug 15 19:07:08 2026 write: IOPS=1, BW=5614KiB/s (5748kB/s)(12.0MiB/2189msec); 0 zone resets clat (msec): min=273, max=1323, avg=695.43, stdev=554.62 lat (msec): min=274, max=1323, avg=696.50, stdev=554.20 clat percentiles (msec): | 1.00th=[ 275], 5.00th=[ 275], 10.00th=[ 275], 20.00th=[ 275], | 30.00th=[ 275], 40.00th=[ 489], 50.00th=[ 489], 60.00th=[ 489], | 70.00th=[ 1318], 80.00th=[ 1318], 90.00th=[ 1318], 95.00th=[ 1318], | 99.00th=[ 1318], 99.50th=[ 1318], 99.90th=[ 1318], 99.95th=[ 1318], | 99.99th=[ 1318] bw ( KiB/s): min= 5752, max= 8062, per=77.84%, avg=6907.00, stdev=1633.42, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=66.67%, 2000=33.33% cpu : usr=0.05%, sys=6.81%, ctx=53, 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=6166KiB/s (6314kB/s), 1542KiB/s-5194KiB/s (1579kB/s-5318kB/s), io=16.0MiB (16.8MB), run=2366-2657msec WRITE: bw=8873KiB/s (9086kB/s), 3083KiB/s-5614KiB/s (3157kB/s-5748kB/s), io=32.0MiB (33.6MB), run=2189-3693msec