== sanity test 398b: DIO and buffer IO race ============== 03:03:57 (1787036637) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 6.7118 s, 7.5 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=144612: Tue Aug 18 03:06:40 2026 read: IOPS=10, BW=41.8KiB/s (42.8kB/s)(5992KiB/143407msec) clat (usec): min=31, max=733980, avg=46162.85, stdev=38599.59 lat (usec): min=32, max=733981, avg=46168.53, stdev=38598.48 clat percentiles (usec): | 1.00th=[ 43], 5.00th=[ 61], 10.00th=[ 355], 20.00th=[ 20841], | 30.00th=[ 27395], 40.00th=[ 33424], 50.00th=[ 40109], 60.00th=[ 47449], | 70.00th=[ 55837], 80.00th=[ 68682], 90.00th=[ 85459], 95.00th=[104334], | 99.00th=[164627], 99.50th=[193987], 99.90th=[299893], 99.95th=[734004], | 99.99th=[734004] bw ( KiB/s): min= 5, max= 111, per=24.92%, avg=41.61, stdev=19.75, samples=279 iops : min= 1, max= 27, avg= 9.75, stdev= 4.95, samples=279 write: IOPS=10, BW=43.9KiB/s (44.0kB/s)(6296KiB/143407msec); 0 zone resets clat (usec): min=942, max=372468, avg=46858.29, stdev=47742.48 lat (usec): min=943, max=372470, avg=46861.64, stdev=47743.35 clat percentiles (usec): | 1.00th=[ 1287], 5.00th=[ 1434], 10.00th=[ 2024], 20.00th=[ 5014], | 30.00th=[ 10683], 40.00th=[ 22414], 50.00th=[ 34341], 60.00th=[ 47973], | 70.00th=[ 61604], 80.00th=[ 80217], 90.00th=[109577], 95.00th=[135267], | 99.00th=[229639], 99.50th=[265290], 99.90th=[291505], 99.95th=[371196], | 99.99th=[371196] bw ( KiB/s): min= 7, max= 155, per=24.83%, avg=43.45, stdev=20.65, samples=281 iops : min= 1, max= 38, avg=10.22, stdev= 5.19, samples=281 lat (usec) : 50=0.68%, 100=3.81%, 250=0.33%, 500=0.10%, 750=0.03% lat (usec) : 1000=0.03% lat (msec) : 2=4.98%, 4=3.81%, 10=6.51%, 20=8.59%, 50=33.69% lat (msec) : 100=28.13%, 250=8.89%, 500=0.39%, 750=0.03% cpu : usr=0.08%, sys=5.00%, ctx=6519, 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=144613: Tue Aug 18 03:06:40 2026 read: IOPS=10, BW=41.6KiB/s (42.6kB/s)(5940KiB/142691msec) clat (usec): min=40, max=382838, avg=46882.98, stdev=37887.67 lat (usec): min=40, max=382839, avg=46889.98, stdev=37885.47 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 63], 10.00th=[ 347], 20.00th=[ 20841], | 30.00th=[ 27132], 40.00th=[ 32375], 50.00th=[ 38536], 60.00th=[ 45876], | 70.00th=[ 55837], 80.00th=[ 69731], 90.00th=[ 90702], 95.00th=[110625], | 99.00th=[185598], 99.50th=[217056], 99.90th=[325059], 99.95th=[383779], | 99.99th=[383779] bw ( KiB/s): min= 5, max= 111, per=24.70%, avg=41.25, stdev=19.83, samples=280 iops : min= 1, max= 27, avg= 9.66, stdev= 4.98, samples=280 write: IOPS=11, BW=44.5KiB/s (45.6kB/s)(6348KiB/142691msec); 0 zone resets clat (usec): min=1083, max=686262, avg=45777.85, stdev=49958.85 lat (usec): min=1085, max=686264, avg=45781.42, stdev=49959.95 clat percentiles (usec): | 1.00th=[ 1270], 5.00th=[ 1434], 10.00th=[ 2114], 20.00th=[ 5735], | 30.00th=[ 11600], 40.00th=[ 22152], 50.00th=[ 33424], 60.00th=[ 45351], | 70.00th=[ 58983], 80.00th=[ 76022], 90.00th=[106431], 95.00th=[132645], | 99.00th=[196084], 99.50th=[238027], 99.90th=[583009], 99.95th=[683672], | 99.99th=[683672] bw ( KiB/s): min= 7, max= 127, per=25.33%, avg=44.33, stdev=20.68, samples=279 iops : min= 1, max= 31, avg=10.43, stdev= 5.20, samples=279 lat (usec) : 50=0.23%, 100=4.43%, 250=0.07%, 500=0.16%, 1000=0.07% lat (msec) : 2=5.14%, 4=2.96%, 10=6.67%, 20=8.98%, 50=35.32% lat (msec) : 100=26.92%, 250=8.72%, 500=0.26%, 750=0.07% cpu : usr=0.08%, sys=4.77%, ctx=6416, 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=144614: Tue Aug 18 03:06:40 2026 read: IOPS=10, BW=42.7KiB/s (43.8kB/s)(6028KiB/141037msec) clat (usec): min=33, max=429725, avg=45091.35, stdev=35680.22 lat (usec): min=33, max=429726, avg=45098.37, stdev=35678.02 clat percentiles (usec): | 1.00th=[ 50], 5.00th=[ 61], 10.00th=[ 129], 20.00th=[ 21103], | 30.00th=[ 26084], 40.00th=[ 31851], 50.00th=[ 38536], 60.00th=[ 46400], | 70.00th=[ 55313], 80.00th=[ 66847], 90.00th=[ 85459], 95.00th=[103285], | 99.00th=[166724], 99.50th=[217056], 99.90th=[283116], 99.95th=[429917], | 99.99th=[429917] bw ( KiB/s): min= 7, max= 103, per=25.57%, avg=42.70, stdev=20.05, samples=274 iops : min= 1, max= 25, avg=10.03, stdev= 5.04, samples=274 write: IOPS=11, BW=44.4KiB/s (45.5kB/s)(6260KiB/141037msec); 0 zone resets clat (usec): min=1074, max=648886, avg=46337.74, stdev=49321.73 lat (usec): min=1075, max=648890, avg=46351.50, stdev=49335.00 clat percentiles (usec): | 1.00th=[ 1270], 5.00th=[ 1401], 10.00th=[ 1745], 20.00th=[ 4883], | 30.00th=[ 10159], 40.00th=[ 21365], 50.00th=[ 34866], 60.00th=[ 46400], | 70.00th=[ 61080], 80.00th=[ 77071], 90.00th=[106431], 95.00th=[139461], | 99.00th=[210764], 99.50th=[240124], 99.90th=[325059], 99.95th=[650118], | 99.99th=[650118] bw ( KiB/s): min= 7, max= 126, per=25.28%, avg=44.24, stdev=20.08, samples=275 iops : min= 1, max= 31, avg=10.41, stdev= 5.04, samples=275 lat (usec) : 50=0.49%, 100=4.30%, 250=0.23%, 750=0.03%, 1000=0.03% lat (msec) : 2=5.70%, 4=3.48%, 10=6.35%, 20=8.33%, 50=34.24% lat (msec) : 100=28.22%, 250=8.27%, 500=0.29%, 750=0.03% cpu : usr=0.07%, sys=5.09%, ctx=6472, 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=144615: Tue Aug 18 03:06:40 2026 read: IOPS=10, BW=42.8KiB/s (43.9kB/s)(6052KiB/141286msec) clat (usec): min=22, max=586022, avg=46072.30, stdev=37255.91 lat (usec): min=22, max=586023, avg=46074.28, stdev=37255.70 clat percentiles (usec): | 1.00th=[ 51], 5.00th=[ 63], 10.00th=[ 4555], 20.00th=[ 21365], | 30.00th=[ 27395], 40.00th=[ 33817], 50.00th=[ 40109], 60.00th=[ 46924], | 70.00th=[ 55313], 80.00th=[ 66323], 90.00th=[ 87557], 95.00th=[105382], | 99.00th=[166724], 99.50th=[208667], 99.90th=[383779], 99.95th=[583009], | 99.99th=[583009] bw ( KiB/s): min= 7, max= 96, per=25.37%, avg=42.36, stdev=19.01, samples=278 iops : min= 1, max= 24, avg= 9.94, stdev= 4.80, samples=278 write: IOPS=11, BW=44.1KiB/s (45.2kB/s)(6236KiB/141286msec); 0 zone resets clat (usec): min=1074, max=399413, avg=45663.96, stdev=46722.16 lat (usec): min=1076, max=399415, avg=45668.07, stdev=46720.36 clat percentiles (usec): | 1.00th=[ 1270], 5.00th=[ 1450], 10.00th=[ 2114], 20.00th=[ 5407], | 30.00th=[ 10552], 40.00th=[ 22676], 50.00th=[ 35390], 60.00th=[ 46924], | 70.00th=[ 60031], 80.00th=[ 76022], 90.00th=[103285], 95.00th=[129500], | 99.00th=[212861], 99.50th=[267387], 99.90th=[320865], 99.95th=[400557], | 99.99th=[400557] bw ( KiB/s): min= 7, max= 87, per=25.12%, avg=43.96, stdev=18.05, samples=276 iops : min= 1, max= 21, avg=10.34, stdev= 4.53, samples=276 lat (usec) : 50=0.49%, 100=4.10%, 250=0.16%, 750=0.03%, 1000=0.03% lat (msec) : 2=4.75%, 4=3.32%, 10=7.13%, 20=8.24%, 50=34.99% lat (msec) : 100=27.90%, 250=8.43%, 500=0.39%, 750=0.03% cpu : usr=0.08%, sys=5.15%, ctx=6446, 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=167KiB/s (171kB/s), 41.6KiB/s-42.8KiB/s (42.6kB/s-43.9kB/s), io=23.4MiB (24.6MB), run=141037-143407msec WRITE: bw=175KiB/s (180kB/s), 43.9KiB/s-44.5KiB/s (44.0kB/s-45.6kB/s), io=24.6MiB (25.7MB), run=141037-143407msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144608: Tue Aug 18 03:09:06 2026 read: IOPS=5, BW=20.8KiB/s (21.3kB/s)(5992KiB/288725msec) clat (msec): min=5, max=721, avg=37.15, stdev=45.24 lat (msec): min=5, max=721, avg=37.15, stdev=45.24 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 24], 60.00th=[ 28], | 70.00th=[ 35], 80.00th=[ 50], 90.00th=[ 79], 95.00th=[ 112], | 99.00th=[ 209], 99.50th=[ 279], 99.90th=[ 693], 99.95th=[ 718], | 99.99th=[ 718] bw ( KiB/s): min= 7, max= 103, per=29.48%, avg=24.18, stdev=16.17, samples=478 iops : min= 1, max= 25, avg= 5.40, stdev= 4.08, samples=478 write: IOPS=5, BW=21.8KiB/s (22.3kB/s)(6296KiB/288725msec); 0 zone resets clat (msec): min=37, max=675, avg=147.81, stdev=78.68 lat (msec): min=37, max=675, avg=147.81, stdev=78.68 clat percentiles (msec): | 1.00th=[ 49], 5.00th=[ 66], 10.00th=[ 74], 20.00th=[ 88], | 30.00th=[ 103], 40.00th=[ 115], 50.00th=[ 127], 60.00th=[ 142], | 70.00th=[ 163], 80.00th=[ 194], 90.00th=[ 253], 95.00th=[ 300], | 99.00th=[ 422], 99.50th=[ 506], 99.90th=[ 667], 99.95th=[ 676], | 99.99th=[ 676] bw ( KiB/s): min= 7, max= 55, per=25.16%, avg=21.64, stdev=10.40, samples=559 iops : min= 1, max= 13, avg= 4.76, stdev= 2.66, samples=559 lat (msec) : 10=3.48%, 20=16.54%, 50=19.86%, 100=20.64%, 250=33.85% lat (msec) : 500=5.31%, 750=0.33% cpu : usr=0.04%, sys=1.22%, ctx=5314, 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=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=144609: Tue Aug 18 03:09:06 2026 read: IOPS=5, BW=20.5KiB/s (21.0kB/s)(5940KiB/289549msec) clat (msec): min=5, max=696, avg=37.64, stdev=45.75 lat (msec): min=5, max=696, avg=37.64, stdev=45.75 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 23], 60.00th=[ 28], | 70.00th=[ 36], 80.00th=[ 50], 90.00th=[ 81], 95.00th=[ 111], | 99.00th=[ 215], 99.50th=[ 251], 99.90th=[ 609], 99.95th=[ 693], | 99.99th=[ 693] bw ( KiB/s): min= 7, max= 103, per=29.10%, avg=23.86, stdev=16.74, samples=479 iops : min= 1, max= 25, avg= 5.33, stdev= 4.22, samples=479 write: IOPS=5, BW=21.9KiB/s (22.4kB/s)(6348KiB/289549msec); 0 zone resets clat (msec): min=38, max=562, avg=146.92, stdev=75.20 lat (msec): min=38, max=562, avg=146.93, stdev=75.20 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 65], 10.00th=[ 73], 20.00th=[ 87], | 30.00th=[ 101], 40.00th=[ 113], 50.00th=[ 128], 60.00th=[ 146], | 70.00th=[ 167], 80.00th=[ 197], 90.00th=[ 251], 95.00th=[ 296], | 99.00th=[ 397], 99.50th=[ 456], 99.90th=[ 535], 99.95th=[ 567], | 99.99th=[ 567] bw ( KiB/s): min= 7, max= 55, per=25.23%, avg=21.70, stdev=10.38, samples=560 iops : min= 1, max= 13, avg= 4.78, stdev= 2.66, samples=560 lat (msec) : 10=3.65%, 20=17.06%, 50=18.88%, 100=21.26%, 250=33.63% lat (msec) : 500=5.40%, 750=0.13% cpu : usr=0.05%, sys=1.22%, ctx=5346, 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=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=144610: Tue Aug 18 03:09:06 2026 read: IOPS=5, BW=21.0KiB/s (21.5kB/s)(6028KiB/286884msec) clat (msec): min=5, max=408, avg=39.10, stdev=43.07 lat (msec): min=5, max=408, avg=39.10, stdev=43.07 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 21], 50.00th=[ 24], 60.00th=[ 30], | 70.00th=[ 38], 80.00th=[ 53], 90.00th=[ 88], 95.00th=[ 123], | 99.00th=[ 203], 99.50th=[ 288], 99.90th=[ 397], 99.95th=[ 409], | 99.99th=[ 409] bw ( KiB/s): min= 7, max= 95, per=28.92%, avg=23.72, stdev=16.46, samples=490 iops : min= 1, max= 23, avg= 5.29, stdev= 4.14, samples=490 write: IOPS=5, BW=21.8KiB/s (22.3kB/s)(6260KiB/286884msec); 0 zone resets clat (msec): min=31, max=702, avg=145.36, stdev=76.80 lat (msec): min=31, max=702, avg=145.36, stdev=76.80 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 62], 10.00th=[ 70], 20.00th=[ 85], | 30.00th=[ 100], 40.00th=[ 113], 50.00th=[ 129], 60.00th=[ 142], | 70.00th=[ 163], 80.00th=[ 197], 90.00th=[ 245], 95.00th=[ 296], | 99.00th=[ 393], 99.50th=[ 481], 99.90th=[ 634], 99.95th=[ 701], | 99.99th=[ 701] bw ( KiB/s): min= 7, max= 56, per=25.17%, avg=21.65, stdev=10.91, samples=555 iops : min= 1, max= 14, avg= 4.76, stdev= 2.80, samples=555 lat (msec) : 10=3.81%, 20=15.56%, 50=20.02%, 100=21.78%, 250=33.69% lat (msec) : 500=4.92%, 750=0.23% cpu : usr=0.04%, sys=1.29%, ctx=5359, 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=144611: Tue Aug 18 03:09:06 2026 read: IOPS=5, BW=21.2KiB/s (21.7kB/s)(6052KiB/285800msec) clat (msec): min=4, max=428, avg=37.07, stdev=41.10 lat (msec): min=4, max=428, avg=37.08, stdev=41.10 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 24], 60.00th=[ 29], | 70.00th=[ 35], 80.00th=[ 49], 90.00th=[ 81], 95.00th=[ 111], | 99.00th=[ 213], 99.50th=[ 253], 99.90th=[ 363], 99.95th=[ 430], | 99.99th=[ 430] bw ( KiB/s): min= 7, max= 95, per=29.53%, avg=24.22, stdev=16.57, samples=482 iops : min= 1, max= 23, avg= 5.42, stdev= 4.20, samples=482 write: IOPS=5, BW=21.8KiB/s (22.3kB/s)(6236KiB/285800msec); 0 zone resets clat (msec): min=37, max=709, avg=147.07, stdev=75.20 lat (msec): min=37, max=709, avg=147.08, stdev=75.21 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 65], 10.00th=[ 75], 20.00th=[ 90], | 30.00th=[ 102], 40.00th=[ 113], 50.00th=[ 128], 60.00th=[ 144], | 70.00th=[ 167], 80.00th=[ 197], 90.00th=[ 245], 95.00th=[ 292], | 99.00th=[ 393], 99.50th=[ 477], 99.90th=[ 558], 99.95th=[ 709], | 99.99th=[ 709] bw ( KiB/s): min= 7, max= 63, per=25.37%, avg=21.82, stdev=10.59, samples=549 iops : min= 1, max= 15, avg= 4.81, stdev= 2.70, samples=549 lat (msec) : 10=4.33%, 20=15.89%, 50=20.51%, 100=20.08%, 250=34.31% lat (msec) : 500=4.72%, 750=0.16% cpu : usr=0.04%, sys=1.29%, ctx=5319, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=82.9KiB/s (84.9kB/s), 20.5KiB/s-21.2KiB/s (21.0kB/s-21.7kB/s), io=23.4MiB (24.6MB), run=285800-289549msec WRITE: bw=86.8KiB/s (88.9kB/s), 21.8KiB/s-21.9KiB/s (22.3kB/s-22.4kB/s), io=24.6MiB (25.7MB), run=285800-289549msec 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=144676: Tue Aug 18 03:09:46 2026 read: IOPS=12, BW=205KiB/s (210kB/s)(5920KiB/28856msec) clat (usec): min=38, max=234716, avg=38060.02, stdev=31229.46 lat (usec): min=38, max=234718, avg=38061.33, stdev=31229.49 clat percentiles (usec): | 1.00th=[ 43], 5.00th=[ 58], 10.00th=[ 66], 20.00th=[ 124], | 30.00th=[ 22152], 40.00th=[ 30016], 50.00th=[ 36439], 60.00th=[ 42730], | 70.00th=[ 51643], 80.00th=[ 62129], 90.00th=[ 73925], 95.00th=[ 91751], | 99.00th=[128451], 99.50th=[200279], 99.90th=[233833], 99.95th=[233833], | 99.99th=[233833] bw ( KiB/s): min= 94, max= 412, per=26.15%, avg=209.45, stdev=63.04, samples=55 iops : min= 5, max= 25, avg=12.31, stdev= 3.93, samples=55 write: IOPS=13, BW=221KiB/s (226kB/s)(6368KiB/28856msec); 0 zone resets clat (usec): min=1621, max=262530, avg=36594.97, stdev=36258.58 lat (usec): min=1622, max=262533, avg=36603.35, stdev=36257.16 clat percentiles (usec): | 1.00th=[ 1713], 5.00th=[ 2180], 10.00th=[ 2933], 20.00th=[ 6521], | 30.00th=[ 11076], 40.00th=[ 18744], 50.00th=[ 25560], 60.00th=[ 34341], | 70.00th=[ 47973], 80.00th=[ 62129], 90.00th=[ 78119], 95.00th=[109577], | 99.00th=[162530], 99.50th=[185598], 99.90th=[263193], 99.95th=[263193], | 99.99th=[263193] bw ( KiB/s): min= 31, max= 414, per=26.39%, avg=222.18, stdev=82.18, samples=56 iops : min= 1, max= 25, avg=13.11, stdev= 5.14, samples=56 lat (usec) : 50=0.91%, 100=8.07%, 250=1.04%, 500=0.65% lat (msec) : 2=1.82%, 4=5.08%, 10=8.46%, 20=9.24%, 50=34.64% lat (msec) : 100=25.39%, 250=4.56%, 500=0.13% cpu : usr=0.08%, sys=6.39%, ctx=1600, 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=144677: Tue Aug 18 03:09:46 2026 read: IOPS=12, BW=192KiB/s (197kB/s)(5744KiB/29896msec) clat (usec): min=41, max=194219, avg=38874.27, stdev=31227.44 lat (usec): min=41, max=194221, avg=38875.67, stdev=31227.69 clat percentiles (usec): | 1.00th=[ 44], 5.00th=[ 61], 10.00th=[ 70], 20.00th=[ 285], | 30.00th=[ 23200], 40.00th=[ 30278], 50.00th=[ 34341], 60.00th=[ 41681], | 70.00th=[ 51119], 80.00th=[ 62653], 90.00th=[ 78119], 95.00th=[ 98042], | 99.00th=[137364], 99.50th=[143655], 99.90th=[193987], 99.95th=[193987], | 99.99th=[193987] bw ( KiB/s): min= 21, max= 445, per=24.43%, avg=195.68, stdev=91.49, samples=57 iops : min= 1, max= 27, avg=11.44, stdev= 5.74, samples=57 write: IOPS=13, BW=219KiB/s (224kB/s)(6544KiB/29896msec); 0 zone resets clat (usec): min=1403, max=317523, avg=38341.43, stdev=44604.80 lat (usec): min=1406, max=317526, avg=38346.25, stdev=44605.26 clat percentiles (usec): | 1.00th=[ 1713], 5.00th=[ 2089], 10.00th=[ 3523], 20.00th=[ 6325], | 30.00th=[ 9372], 40.00th=[ 15139], 50.00th=[ 24249], 60.00th=[ 32900], | 70.00th=[ 43779], 80.00th=[ 61604], 90.00th=[ 95945], 95.00th=[122160], | 99.00th=[219153], 99.50th=[244319], 99.90th=[316670], 99.95th=[316670], | 99.99th=[316670] bw ( KiB/s): min= 63, max= 542, per=25.98%, avg=218.78, stdev=96.42, samples=58 iops : min= 3, max= 33, avg=12.90, stdev= 6.10, samples=58 lat (usec) : 50=1.04%, 100=7.68%, 250=0.52%, 500=0.26%, 750=0.13% lat (msec) : 2=2.60%, 4=3.91%, 10=11.07%, 20=8.07%, 50=36.20% lat (msec) : 100=21.61%, 250=6.64%, 500=0.26% cpu : usr=0.05%, sys=5.89%, ctx=1513, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144678: Tue Aug 18 03:09:46 2026 read: IOPS=14, BW=232KiB/s (237kB/s)(6256KiB/26984msec) clat (usec): min=37, max=193663, avg=36983.98, stdev=30204.17 lat (usec): min=38, max=193663, avg=36985.34, stdev=30204.09 clat percentiles (usec): | 1.00th=[ 44], 5.00th=[ 61], 10.00th=[ 75], 20.00th=[ 7373], | 30.00th=[ 21890], 40.00th=[ 29230], 50.00th=[ 34341], 60.00th=[ 39060], | 70.00th=[ 46400], 80.00th=[ 58459], 90.00th=[ 72877], 95.00th=[ 93848], | 99.00th=[131597], 99.50th=[166724], 99.90th=[193987], 99.95th=[193987], | 99.99th=[193987] bw ( KiB/s): min= 21, max= 415, per=29.61%, avg=237.17, stdev=80.71, samples=52 iops : min= 1, max= 25, avg=14.06, stdev= 5.03, samples=52 write: IOPS=13, BW=224KiB/s (229kB/s)(6032KiB/26984msec); 0 zone resets clat (usec): min=1474, max=330729, avg=33019.90, stdev=41769.29 lat (usec): min=1477, max=330731, avg=33024.59, stdev=41768.00 clat percentiles (usec): | 1.00th=[ 1778], 5.00th=[ 2089], 10.00th=[ 2868], 20.00th=[ 5014], | 30.00th=[ 7635], 40.00th=[ 10159], 50.00th=[ 16581], 60.00th=[ 27657], | 70.00th=[ 38011], 80.00th=[ 53216], 90.00th=[ 83362], 95.00th=[113771], | 99.00th=[196084], 99.50th=[291505], 99.90th=[329253], 99.95th=[329253], | 99.99th=[329253] bw ( KiB/s): min= 63, max= 413, per=26.66%, avg=224.50, stdev=92.43, samples=52 iops : min= 3, max= 25, avg=13.27, stdev= 5.78, samples=52 lat (usec) : 50=1.04%, 100=7.03%, 250=1.04%, 500=0.13%, 750=0.13% lat (usec) : 1000=0.13% lat (msec) : 2=2.86%, 4=5.34%, 10=11.98%, 20=9.51%, 50=36.98% lat (msec) : 100=19.01%, 250=4.56%, 500=0.26% cpu : usr=0.09%, sys=6.46%, ctx=1478, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144679: Tue Aug 18 03:09:46 2026 read: IOPS=13, BW=218KiB/s (224kB/s)(6032KiB/27631msec) clat (usec): min=35, max=220935, avg=37237.40, stdev=31547.01 lat (usec): min=35, max=220937, avg=37245.98, stdev=31547.10 clat percentiles (usec): | 1.00th=[ 47], 5.00th=[ 63], 10.00th=[ 71], 20.00th=[ 128], | 30.00th=[ 23200], 40.00th=[ 28967], 50.00th=[ 34341], 60.00th=[ 40633], | 70.00th=[ 47973], 80.00th=[ 56886], 90.00th=[ 68682], 95.00th=[ 84411], | 99.00th=[173016], 99.50th=[198181], 99.90th=[221250], 99.95th=[221250], | 99.99th=[221250] bw ( KiB/s): min= 62, max= 409, per=27.27%, avg=218.44, stdev=82.35, samples=54 iops : min= 3, max= 25, avg=12.89, stdev= 5.13, samples=54 write: IOPS=14, BW=226KiB/s (232kB/s)(6256KiB/27631msec); 0 zone resets clat (usec): min=1623, max=287053, avg=34017.85, stdev=38163.86 lat (usec): min=1625, max=287056, avg=34027.00, stdev=38160.32 clat percentiles (usec): | 1.00th=[ 1729], 5.00th=[ 2024], 10.00th=[ 3326], 20.00th=[ 5800], | 30.00th=[ 8356], 40.00th=[ 13173], 50.00th=[ 22414], 60.00th=[ 30016], | 70.00th=[ 39060], 80.00th=[ 55313], 90.00th=[ 86508], 95.00th=[108528], | 99.00th=[189793], 99.50th=[204473], 99.90th=[287310], 99.95th=[287310], | 99.99th=[287310] bw ( KiB/s): min= 31, max= 535, per=27.11%, avg=228.24, stdev=88.19, samples=54 iops : min= 1, max= 33, avg=13.50, stdev= 5.57, samples=54 lat (usec) : 50=0.78%, 100=8.20%, 250=1.17%, 500=0.13% lat (msec) : 2=2.47%, 4=4.95%, 10=10.16%, 20=10.29%, 50=36.59% lat (msec) : 100=20.44%, 250=4.69%, 500=0.13% cpu : usr=0.09%, sys=6.56%, ctx=1555, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=801KiB/s (820kB/s), 192KiB/s-232KiB/s (197kB/s-237kB/s), io=23.4MiB (24.5MB), run=26984-29896msec WRITE: bw=843KiB/s (863kB/s), 219KiB/s-226KiB/s (224kB/s-232kB/s), io=24.6MiB (25.8MB), run=26984-29896msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144672: Tue Aug 18 03:10:31 2026 read: IOPS=4, BW=79.5KiB/s (81.4kB/s)(5920KiB/74449msec) clat (msec): min=7, max=264, avg=45.03, stdev=36.27 lat (msec): min=7, max=264, avg=45.03, stdev=36.27 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 12], 10.00th=[ 15], 20.00th=[ 21], | 30.00th=[ 25], 40.00th=[ 30], 50.00th=[ 35], 60.00th=[ 42], | 70.00th=[ 47], 80.00th=[ 61], 90.00th=[ 86], 95.00th=[ 120], | 99.00th=[ 211], 99.50th=[ 220], 99.90th=[ 264], 99.95th=[ 264], | 99.99th=[ 264] bw ( KiB/s): min= 30, max= 255, per=27.47%, avg=87.62, stdev=50.78, samples=131 iops : min= 1, max= 15, avg= 4.69, stdev= 3.20, samples=131 write: IOPS=5, BW=85.5KiB/s (87.6kB/s)(6368KiB/74449msec); 0 zone resets clat (msec): min=34, max=513, avg=144.73, stdev=70.97 lat (msec): min=34, max=513, avg=144.73, stdev=70.97 clat percentiles (msec): | 1.00th=[ 45], 5.00th=[ 62], 10.00th=[ 71], 20.00th=[ 88], | 30.00th=[ 102], 40.00th=[ 113], 50.00th=[ 128], 60.00th=[ 146], | 70.00th=[ 165], 80.00th=[ 194], 90.00th=[ 247], 95.00th=[ 284], | 99.00th=[ 384], 99.50th=[ 468], 99.90th=[ 514], 99.95th=[ 514], | 99.99th=[ 514] bw ( KiB/s): min= 30, max= 223, per=25.54%, avg=85.80, stdev=41.18, samples=145 iops : min= 1, max= 13, avg= 4.57, stdev= 2.63, samples=145 lat (msec) : 10=1.04%, 20=7.42%, 50=27.86%, 100=23.83%, 250=34.90% lat (msec) : 500=4.82%, 750=0.13% cpu : usr=0.05%, sys=1.47%, ctx=1527, 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=144673: Tue Aug 18 03:10:31 2026 read: IOPS=4, BW=76.7KiB/s (78.5kB/s)(5744KiB/74920msec) clat (msec): min=6, max=212, avg=40.41, stdev=30.97 lat (msec): min=6, max=212, avg=40.41, stdev=30.97 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 21], 40.00th=[ 27], 50.00th=[ 32], 60.00th=[ 37], | 70.00th=[ 45], 80.00th=[ 59], 90.00th=[ 75], 95.00th=[ 112], | 99.00th=[ 150], 99.50th=[ 190], 99.90th=[ 213], 99.95th=[ 213], | 99.99th=[ 213] bw ( KiB/s): min= 30, max= 314, per=29.07%, avg=92.74, stdev=55.93, samples=121 iops : min= 1, max= 19, avg= 5.02, stdev= 3.59, samples=121 write: IOPS=5, BW=87.3KiB/s (89.4kB/s)(6544KiB/74920msec); 0 zone resets clat (msec): min=37, max=395, avg=147.35, stdev=70.30 lat (msec): min=37, max=395, avg=147.36, stdev=70.30 clat percentiles (msec): | 1.00th=[ 49], 5.00th=[ 63], 10.00th=[ 72], 20.00th=[ 86], | 30.00th=[ 101], 40.00th=[ 115], 50.00th=[ 133], 60.00th=[ 153], | 70.00th=[ 176], 80.00th=[ 205], 90.00th=[ 245], 95.00th=[ 288], | 99.00th=[ 376], 99.50th=[ 393], 99.90th=[ 397], 99.95th=[ 397], | 99.99th=[ 397] bw ( KiB/s): min= 31, max= 288, per=26.01%, avg=87.39, stdev=42.97, samples=147 iops : min= 1, max= 18, avg= 4.67, stdev= 2.75, samples=147 lat (msec) : 10=1.17%, 20=11.59%, 50=22.40%, 100=25.26%, 250=35.03% lat (msec) : 500=4.56% cpu : usr=0.03%, sys=1.33%, ctx=1356, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144674: Tue Aug 18 03:10:31 2026 read: IOPS=5, BW=84.9KiB/s (86.0kB/s)(6256KiB/73663msec) clat (msec): min=8, max=292, avg=43.91, stdev=38.54 lat (msec): min=8, max=292, avg=43.92, stdev=38.55 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 20], | 30.00th=[ 23], 40.00th=[ 28], 50.00th=[ 32], 60.00th=[ 39], | 70.00th=[ 48], 80.00th=[ 59], 90.00th=[ 85], 95.00th=[ 127], | 99.00th=[ 194], 99.50th=[ 271], 99.90th=[ 292], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 30, max= 416, per=29.76%, avg=94.95, stdev=65.93, samples=130 iops : min= 1, max= 26, avg= 5.15, stdev= 4.17, samples=130 write: IOPS=5, BW=81.9KiB/s (83.9kB/s)(6032KiB/73663msec); 0 zone resets clat (msec): min=42, max=435, avg=149.50, stdev=70.86 lat (msec): min=42, max=435, avg=149.50, stdev=70.86 clat percentiles (msec): | 1.00th=[ 45], 5.00th=[ 62], 10.00th=[ 75], 20.00th=[ 94], | 30.00th=[ 105], 40.00th=[ 118], 50.00th=[ 130], 60.00th=[ 153], | 70.00th=[ 176], 80.00th=[ 205], 90.00th=[ 245], 95.00th=[ 296], | 99.00th=[ 401], 99.50th=[ 418], 99.90th=[ 435], 99.95th=[ 435], | 99.99th=[ 435] bw ( KiB/s): min= 30, max= 191, per=24.66%, avg=82.86, stdev=36.95, samples=142 iops : min= 1, max= 11, avg= 4.38, stdev= 2.35, samples=142 lat (msec) : 10=1.17%, 20=10.29%, 50=26.69%, 100=21.09%, 250=36.07% lat (msec) : 500=4.69% cpu : usr=0.04%, sys=1.46%, ctx=1437, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144675: Tue Aug 18 03:10:31 2026 read: IOPS=5, BW=81.8KiB/s (83.7kB/s)(6032KiB/73763msec) clat (msec): min=6, max=164, avg=43.20, stdev=29.35 lat (msec): min=6, max=164, avg=43.20, stdev=29.35 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 16], 20.00th=[ 22], | 30.00th=[ 27], 40.00th=[ 31], 50.00th=[ 35], 60.00th=[ 41], | 70.00th=[ 47], 80.00th=[ 62], 90.00th=[ 81], 95.00th=[ 113], | 99.00th=[ 144], 99.50th=[ 148], 99.90th=[ 165], 99.95th=[ 165], | 99.99th=[ 165] bw ( KiB/s): min= 30, max= 288, per=28.54%, avg=91.05, stdev=61.32, samples=130 iops : min= 1, max= 18, avg= 4.90, stdev= 3.93, samples=130 write: IOPS=5, BW=84.8KiB/s (86.8kB/s)(6256KiB/73763msec); 0 zone resets clat (msec): min=31, max=410, avg=146.82, stdev=65.12 lat (msec): min=31, max=410, avg=146.85, stdev=65.11 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 64], 10.00th=[ 77], 20.00th=[ 90], | 30.00th=[ 105], 40.00th=[ 120], 50.00th=[ 136], 60.00th=[ 155], | 70.00th=[ 174], 80.00th=[ 192], 90.00th=[ 232], 95.00th=[ 275], | 99.00th=[ 355], 99.50th=[ 372], 99.90th=[ 409], 99.95th=[ 409], | 99.99th=[ 409] bw ( KiB/s): min= 30, max= 191, per=25.15%, avg=84.49, stdev=38.20, samples=146 iops : min= 1, max= 11, avg= 4.49, stdev= 2.44, samples=146 lat (msec) : 10=0.91%, 20=7.42%, 50=27.86%, 100=23.70%, 250=36.33% lat (msec) : 500=3.78% cpu : usr=0.04%, sys=1.44%, ctx=1331, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=320KiB/s (327kB/s), 76.7KiB/s-84.9KiB/s (78.5kB/s-86.0kB/s), io=23.4MiB (24.5MB), run=73663-74920msec WRITE: bw=336KiB/s (344kB/s), 81.9KiB/s-87.3KiB/s (83.9kB/s-89.4kB/s), io=24.6MiB (25.8MB), run=73663-74920msec 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=144706: Tue Aug 18 03:10:47 2026 read: IOPS=1, BW=1533KiB/s (1570kB/s)(7168KiB/4676msec) clat (msec): min=113, max=550, avg=285.79, stdev=153.10 lat (msec): min=113, max=550, avg=285.79, stdev=153.10 clat percentiles (msec): | 1.00th=[ 113], 5.00th=[ 113], 10.00th=[ 113], 20.00th=[ 174], | 30.00th=[ 192], 40.00th=[ 192], 50.00th=[ 241], 60.00th=[ 321], | 70.00th=[ 321], 80.00th=[ 409], 90.00th=[ 550], 95.00th=[ 550], | 99.00th=[ 550], 99.50th=[ 550], 99.90th=[ 550], 99.95th=[ 550], | 99.99th=[ 550] bw ( KiB/s): min= 1570, max= 4055, per=77.07%, avg=2900.75, stdev=1276.68, samples=4 iops : min= 1, max= 3, avg= 2.25, stdev= 0.96, samples=4 write: IOPS=1, BW=1095KiB/s (1121kB/s)(5120KiB/4676msec); 0 zone resets clat (msec): min=115, max=763, avg=489.93, stdev=256.80 lat (msec): min=115, max=763, avg=490.05, stdev=256.79 clat percentiles (msec): | 1.00th=[ 116], 5.00th=[ 116], 10.00th=[ 116], 20.00th=[ 116], | 30.00th=[ 355], 40.00th=[ 355], 50.00th=[ 567], 60.00th=[ 567], | 70.00th=[ 651], 80.00th=[ 651], 90.00th=[ 760], 95.00th=[ 760], | 99.00th=[ 760], 99.50th=[ 760], 99.90th=[ 760], 99.95th=[ 760], | 99.99th=[ 760] bw ( KiB/s): min= 2027, max= 3946, per=50.71%, avg=2672.00, stdev=1103.35, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 250=41.67%, 500=25.00%, 750=25.00%, 1000=8.33% cpu : usr=0.02%, sys=4.06%, ctx=102, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144707: Tue Aug 18 03:10:47 2026 read: IOPS=0, BW=376KiB/s (385kB/s)(2048KiB/5441msec) clat (msec): min=162, max=512, avg=337.29, stdev=247.14 lat (msec): min=162, max=512, avg=337.30, stdev=247.14 clat percentiles (msec): | 1.00th=[ 163], 5.00th=[ 163], 10.00th=[ 163], 20.00th=[ 163], | 30.00th=[ 163], 40.00th=[ 163], 50.00th=[ 163], 60.00th=[ 514], | 70.00th=[ 514], 80.00th=[ 514], 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= 1648, max= 1875, per=46.80%, avg=1761.50, stdev=160.51, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1882KiB/s (1927kB/s)(10.0MiB/5441msec); 0 zone resets clat (msec): min=147, max=886, avg=459.50, stdev=262.18 lat (msec): min=147, max=886, avg=459.84, stdev=262.03 clat percentiles (msec): | 1.00th=[ 148], 5.00th=[ 148], 10.00th=[ 148], 20.00th=[ 171], | 30.00th=[ 253], 40.00th=[ 330], 50.00th=[ 330], 60.00th=[ 439], | 70.00th=[ 542], 80.00th=[ 726], 90.00th=[ 776], 95.00th=[ 885], | 99.00th=[ 885], 99.50th=[ 885], 99.90th=[ 885], 99.95th=[ 885], | 99.99th=[ 885] bw ( KiB/s): min= 1648, max= 4055, per=42.15%, avg=2221.12, stdev=752.35, samples=8 iops : min= 1, max= 3, avg= 1.25, stdev= 0.71, samples=8 lat (msec) : 250=25.00%, 500=33.33%, 750=25.00%, 1000=16.67% cpu : usr=0.00%, sys=3.42%, ctx=72, 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=144708: Tue Aug 18 03:10:47 2026 read: IOPS=1, BW=1406KiB/s (1440kB/s)(6144KiB/4369msec) clat (msec): min=118, max=442, avg=292.88, stdev=132.99 lat (msec): min=118, max=442, avg=292.89, stdev=132.97 clat percentiles (msec): | 1.00th=[ 120], 5.00th=[ 120], 10.00th=[ 120], 20.00th=[ 197], | 30.00th=[ 197], 40.00th=[ 218], 50.00th=[ 218], 60.00th=[ 368], | 70.00th=[ 418], 80.00th=[ 418], 90.00th=[ 443], 95.00th=[ 443], | 99.00th=[ 443], 99.50th=[ 443], 99.90th=[ 443], 99.95th=[ 443], | 99.99th=[ 443] bw ( KiB/s): min= 2048, max= 3930, per=86.15%, avg=3242.67, stdev=1038.52, samples=3 iops : min= 2, max= 3, avg= 2.67, stdev= 0.58, samples=3 write: IOPS=1, BW=1406KiB/s (1440kB/s)(6144KiB/4369msec); 0 zone resets clat (msec): min=193, max=772, avg=400.23, stdev=213.57 lat (msec): min=193, max=772, avg=400.36, stdev=213.57 clat percentiles (msec): | 1.00th=[ 194], 5.00th=[ 194], 10.00th=[ 194], 20.00th=[ 203], | 30.00th=[ 203], 40.00th=[ 342], 50.00th=[ 342], 60.00th=[ 443], | 70.00th=[ 447], 80.00th=[ 447], 90.00th=[ 776], 95.00th=[ 776], | 99.00th=[ 776], 99.50th=[ 776], 99.90th=[ 776], 99.95th=[ 776], | 99.99th=[ 776] bw ( KiB/s): min= 1973, max= 3335, per=43.34%, avg=2283.40, stdev=588.53, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (msec) : 250=41.67%, 500=50.00%, 1000=8.33% cpu : usr=0.02%, sys=3.02%, ctx=61, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144709: Tue Aug 18 03:10:47 2026 read: IOPS=1, BW=1110KiB/s (1136kB/s)(5120KiB/4614msec) clat (msec): min=129, max=1001, avg=426.66, stdev=350.29 lat (msec): min=129, max=1001, avg=426.66, stdev=350.29 clat percentiles (msec): | 1.00th=[ 130], 5.00th=[ 130], 10.00th=[ 130], 20.00th=[ 130], | 30.00th=[ 169], 40.00th=[ 169], 50.00th=[ 368], 60.00th=[ 368], | 70.00th=[ 468], 80.00th=[ 468], 90.00th=[ 1003], 95.00th=[ 1003], | 99.00th=[ 1003], 99.50th=[ 1003], 99.90th=[ 1003], 99.95th=[ 1003], | 99.99th=[ 1003] bw ( KiB/s): min= 1875, max= 2027, per=52.07%, avg=1960.00, stdev=63.00, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 write: IOPS=1, BW=1554KiB/s (1591kB/s)(7168KiB/4614msec); 0 zone resets clat (msec): min=160, max=646, avg=347.88, stdev=173.98 lat (msec): min=160, max=646, avg=348.01, stdev=174.01 clat percentiles (msec): | 1.00th=[ 161], 5.00th=[ 161], 10.00th=[ 161], 20.00th=[ 163], | 30.00th=[ 317], 40.00th=[ 317], 50.00th=[ 326], 60.00th=[ 326], | 70.00th=[ 326], 80.00th=[ 493], 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= 1563, max= 6083, per=55.67%, avg=2933.25, stdev=2112.02, samples=4 iops : min= 1, max= 5, avg= 2.25, stdev= 1.89, samples=4 lat (msec) : 250=33.33%, 500=50.00%, 750=8.33%, 2000=8.33% cpu : usr=0.02%, sys=2.41%, ctx=80, 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=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=3764KiB/s (3854kB/s), 376KiB/s-1533KiB/s (385kB/s-1570kB/s), io=20.0MiB (20.0MB), run=4369-5441msec WRITE: bw=5270KiB/s (5396kB/s), 1095KiB/s-1882KiB/s (1121kB/s-1927kB/s), io=28.0MiB (29.4MB), run=4369-5441msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144711: Tue Aug 18 03:10:47 2026 read: IOPS=1, BW=1988KiB/s (2036kB/s)(7168KiB/3606msec) clat (usec): min=538, max=445244, avg=226521.44, stdev=137363.24 lat (usec): min=540, max=445245, avg=226523.08, stdev=137363.35 clat percentiles (usec): | 1.00th=[ 537], 5.00th=[ 537], 10.00th=[ 537], 20.00th=[189793], | 30.00th=[191890], 40.00th=[191890], 50.00th=[193987], 60.00th=[231736], | 70.00th=[231736], 80.00th=[329253], 90.00th=[446694], 95.00th=[446694], | 99.00th=[446694], 99.50th=[446694], 99.90th=[446694], 99.95th=[446694], | 99.99th=[446694] bw ( KiB/s): min= 2000, max= 3992, per=53.21%, avg=2418.60, stdev=879.71, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 write: IOPS=1, BW=1420KiB/s (1454kB/s)(5120KiB/3606msec); 0 zone resets clat (msec): min=202, max=909, avg=403.36, stdev=290.18 lat (msec): min=202, max=909, avg=403.63, stdev=290.04 clat percentiles (msec): | 1.00th=[ 203], 5.00th=[ 203], 10.00th=[ 203], 20.00th=[ 203], | 30.00th=[ 226], 40.00th=[ 226], 50.00th=[ 317], 60.00th=[ 317], | 70.00th=[ 363], 80.00th=[ 363], 90.00th=[ 911], 95.00th=[ 911], | 99.00th=[ 911], 99.50th=[ 911], 99.90th=[ 911], 99.95th=[ 911], | 99.99th=[ 911] bw ( KiB/s): min= 2023, max= 4079, per=42.67%, avg=2715.00, stdev=1181.30, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (usec) : 750=8.33% lat (msec) : 250=50.00%, 500=33.33%, 1000=8.33% cpu : usr=0.00%, sys=15.20%, ctx=185, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144712: Tue Aug 18 03:10:47 2026 read: IOPS=0, BW=455KiB/s (465kB/s)(2048KiB/4506msec) clat (msec): min=244, max=271, avg=257.86, stdev=19.23 lat (msec): min=244, max=271, avg=257.86, stdev=19.23 clat percentiles (msec): | 1.00th=[ 245], 5.00th=[ 245], 10.00th=[ 245], 20.00th=[ 245], | 30.00th=[ 245], 40.00th=[ 245], 50.00th=[ 245], 60.00th=[ 271], | 70.00th=[ 271], 80.00th=[ 271], 90.00th=[ 271], 95.00th=[ 271], | 99.00th=[ 271], 99.50th=[ 271], 99.90th=[ 271], 99.95th=[ 271], | 99.99th=[ 271] bw ( KiB/s): min= 1361, max= 2043, per=37.45%, avg=1702.00, stdev=482.25, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2273KiB/s (2327kB/s)(10.0MiB/4506msec); 0 zone resets clat (msec): min=135, max=723, avg=398.29, stdev=202.42 lat (msec): min=135, max=723, avg=398.42, stdev=202.43 clat percentiles (msec): | 1.00th=[ 136], 5.00th=[ 136], 10.00th=[ 136], 20.00th=[ 178], | 30.00th=[ 249], 40.00th=[ 288], 50.00th=[ 317], 60.00th=[ 426], | 70.00th=[ 481], 80.00th=[ 493], 90.00th=[ 693], 95.00th=[ 726], | 99.00th=[ 726], 99.50th=[ 726], 99.90th=[ 726], 99.95th=[ 726], | 99.99th=[ 726] bw ( KiB/s): min= 1980, max= 4079, per=40.89%, avg=2602.14, stdev=1009.10, samples=7 iops : min= 1, max= 3, avg= 1.57, stdev= 0.98, samples=7 lat (msec) : 250=33.33%, 500=50.00%, 750=16.67% cpu : usr=0.04%, sys=14.43%, ctx=181, 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=144713: Tue Aug 18 03:10:47 2026 read: IOPS=1, BW=1660KiB/s (1700kB/s)(6144KiB/3701msec) clat (usec): min=763, max=864630, avg=219650.25, stdev=335088.34 lat (usec): min=764, max=864631, avg=219651.76, stdev=335088.06 clat percentiles (usec): | 1.00th=[ 766], 5.00th=[ 766], 10.00th=[ 766], 20.00th=[ 1123], | 30.00th=[ 1123], 40.00th=[ 2671], 50.00th=[ 2671], 60.00th=[187696], | 70.00th=[261096], 80.00th=[261096], 90.00th=[868221], 95.00th=[868221], | 99.00th=[868221], 99.50th=[868221], 99.90th=[868221], 99.95th=[868221], | 99.99th=[868221] bw ( KiB/s): min= 2039, max= 4000, per=73.34%, avg=3333.33, stdev=1121.10, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=1, BW=1660KiB/s (1700kB/s)(6144KiB/3701msec); 0 zone resets clat (msec): min=210, max=682, avg=396.54, stdev=188.25 lat (msec): min=210, max=682, avg=396.66, stdev=188.27 clat percentiles (msec): | 1.00th=[ 211], 5.00th=[ 211], 10.00th=[ 211], 20.00th=[ 224], | 30.00th=[ 224], 40.00th=[ 279], 50.00th=[ 279], 60.00th=[ 481], | 70.00th=[ 502], 80.00th=[ 502], 90.00th=[ 684], 95.00th=[ 684], | 99.00th=[ 684], 99.50th=[ 684], 99.90th=[ 684], 99.95th=[ 684], | 99.99th=[ 684] bw ( KiB/s): min= 1980, max= 2904, per=35.06%, avg=2230.75, stdev=449.50, samples=4 iops : min= 1, max= 2, avg= 1.25, stdev= 0.50, samples=4 lat (usec) : 1000=8.33% lat (msec) : 2=8.33%, 4=8.33%, 250=25.00%, 500=25.00%, 750=16.67% lat (msec) : 1000=8.33% cpu : usr=0.00%, sys=10.70%, ctx=149, 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=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=144714: Tue Aug 18 03:10:47 2026 read: IOPS=1, BW=1242KiB/s (1272kB/s)(5120KiB/4122msec) clat (usec): min=473, max=527249, avg=131828.53, stdev=226835.05 lat (usec): min=475, max=527251, avg=131830.50, stdev=226834.84 clat percentiles (usec): | 1.00th=[ 474], 5.00th=[ 474], 10.00th=[ 474], 20.00th=[ 474], | 30.00th=[ 2835], 40.00th=[ 2835], 50.00th=[ 7570], 60.00th=[ 7570], | 70.00th=[121111], 80.00th=[121111], 90.00th=[526386], 95.00th=[526386], | 99.00th=[526386], 99.50th=[526386], 99.90th=[526386], 99.95th=[526386], | 99.99th=[526386] bw ( KiB/s): min= 2043, max= 5941, per=87.83%, avg=3992.00, stdev=2756.30, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=1, BW=1739KiB/s (1781kB/s)(7168KiB/4122msec); 0 zone resets clat (msec): min=211, max=691, avg=492.94, stdev=189.94 lat (msec): min=211, max=691, avg=493.04, stdev=189.94 clat percentiles (msec): | 1.00th=[ 211], 5.00th=[ 211], 10.00th=[ 211], 20.00th=[ 268], | 30.00th=[ 443], 40.00th=[ 443], 50.00th=[ 584], 60.00th=[ 617], | 70.00th=[ 617], 80.00th=[ 642], 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= 1361, max= 2043, per=29.69%, avg=1889.20, stdev=295.94, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (usec) : 500=8.33% lat (msec) : 4=8.33%, 10=8.33%, 250=16.67%, 500=16.67%, 750=41.67% cpu : usr=0.00%, sys=9.17%, ctx=104, 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=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=4545KiB/s (4654kB/s), 455KiB/s-1988KiB/s (465kB/s-2036kB/s), io=20.0MiB (20.0MB), run=3606-4506msec WRITE: bw=6363KiB/s (6516kB/s), 1420KiB/s-2273KiB/s (1454kB/s-2327kB/s), io=28.0MiB (29.4MB), run=3606-4506msec 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=144726: Tue Aug 18 03:11:02 2026 read: IOPS=1, BW=5578KiB/s (5712kB/s)(12.0MiB/2203msec) clat (msec): min=440, max=1096, avg=677.20, stdev=364.48 lat (msec): min=440, max=1096, avg=677.21, stdev=364.48 clat percentiles (msec): | 1.00th=[ 443], 5.00th=[ 443], 10.00th=[ 443], 20.00th=[ 443], | 30.00th=[ 443], 40.00th=[ 493], 50.00th=[ 493], 60.00th=[ 493], | 70.00th=[ 1099], 80.00th=[ 1099], 90.00th=[ 1099], 95.00th=[ 1099], | 99.00th=[ 1099], 99.50th=[ 1099], 99.90th=[ 1099], 99.95th=[ 1099], | 99.99th=[ 1099] bw ( KiB/s): min= 5970, max= 5970, per=100.00%, avg=5970.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=66.67%, 2000=33.33% cpu : usr=0.00%, sys=13.03%, ctx=341, 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=144727: Tue Aug 18 03:11:02 2026 read: IOPS=0, BW=1464KiB/s (1500kB/s)(4096KiB/2797msec) clat (nsec): min=616738k, max=616738k, avg=616738341.00, stdev= 0.00 lat (nsec): min=616741k, max=616741k, avg=616741384.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 617], 5.00th=[ 617], 10.00th=[ 617], 20.00th=[ 617], | 30.00th=[ 617], 40.00th=[ 617], 50.00th=[ 617], 60.00th=[ 617], | 70.00th=[ 617], 80.00th=[ 617], 90.00th=[ 617], 95.00th=[ 617], | 99.00th=[ 617], 99.50th=[ 617], 99.90th=[ 617], 99.95th=[ 617], | 99.99th=[ 617] bw ( KiB/s): min= 8159, max= 8159, per=100.00%, avg=8159.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2929KiB/s (2999kB/s)(8192KiB/2797msec); 0 zone resets clat (msec): min=703, max=1358, avg=1030.79, stdev=463.24 lat (msec): min=705, max=1358, avg=1032.26, stdev=461.69 clat percentiles (msec): | 1.00th=[ 701], 5.00th=[ 701], 10.00th=[ 701], 20.00th=[ 701], | 30.00th=[ 701], 40.00th=[ 701], 50.00th=[ 701], 60.00th=[ 1351], | 70.00th=[ 1351], 80.00th=[ 1351], 90.00th=[ 1351], 95.00th=[ 1351], | 99.00th=[ 1351], 99.50th=[ 1351], 99.90th=[ 1351], 99.95th=[ 1351], | 99.99th=[ 1351] bw ( KiB/s): min= 8159, max= 8159, per=85.81%, avg=8159.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=66.67%, 2000=33.33% cpu : usr=0.00%, sys=6.47%, ctx=122, 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=144728: Tue Aug 18 03:11:02 2026 write: IOPS=0, BW=3566KiB/s (3651kB/s)(12.0MiB/3446msec); 0 zone resets clat (msec): min=310, max=1615, avg=1092.82, stdev=689.77 lat (msec): min=311, max=1618, avg=1094.34, stdev=690.56 clat percentiles (msec): | 1.00th=[ 313], 5.00th=[ 313], 10.00th=[ 313], 20.00th=[ 313], | 30.00th=[ 313], 40.00th=[ 1351], 50.00th=[ 1351], 60.00th=[ 1351], | 70.00th=[ 1620], 80.00th=[ 1620], 90.00th=[ 1620], 95.00th=[ 1620], | 99.00th=[ 1620], 99.50th=[ 1620], 99.90th=[ 1620], 99.95th=[ 1620], | 99.99th=[ 1620] bw ( KiB/s): min= 8110, max= 8159, per=85.55%, 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=0.00%, sys=4.21%, ctx=62, 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=144729: Tue Aug 18 03:11:02 2026 write: IOPS=1, BW=4660KiB/s (4772kB/s)(12.0MiB/2637msec); 0 zone resets clat (msec): min=421, max=1508, avg=806.47, stdev=608.90 lat (msec): min=421, max=1509, avg=806.95, stdev=608.96 clat percentiles (msec): | 1.00th=[ 422], 5.00th=[ 422], 10.00th=[ 422], 20.00th=[ 422], | 30.00th=[ 422], 40.00th=[ 489], 50.00th=[ 489], 60.00th=[ 489], | 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= 5512, max= 7968, per=70.89%, avg=6740.00, stdev=1736.65, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=66.67%, 2000=33.33% cpu : usr=0.00%, sys=5.58%, ctx=56, 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=5858KiB/s (5998kB/s), 1464KiB/s-5578KiB/s (1500kB/s-5712kB/s), io=16.0MiB (16.8MB), run=2203-2797msec WRITE: bw=9509KiB/s (9737kB/s), 2929KiB/s-4660KiB/s (2999kB/s-4772kB/s), io=32.0MiB (33.6MB), run=2637-3446msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144721: Tue Aug 18 03:11:02 2026 read: IOPS=0, BW=3923KiB/s (4018kB/s)(12.0MiB/3132msec) clat (msec): min=274, max=1601, avg=942.18, stdev=663.73 lat (msec): min=274, max=1601, avg=942.18, stdev=663.73 clat percentiles (msec): | 1.00th=[ 275], 5.00th=[ 275], 10.00th=[ 275], 20.00th=[ 275], | 30.00th=[ 275], 40.00th=[ 953], 50.00th=[ 953], 60.00th=[ 953], | 70.00th=[ 1603], 80.00th=[ 1603], 90.00th=[ 1603], 95.00th=[ 1603], | 99.00th=[ 1603], 99.50th=[ 1603], 99.90th=[ 1603], 99.95th=[ 1603], | 99.99th=[ 1603] bw ( KiB/s): min= 7968, max= 7968, per=100.00%, avg=7968.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=3.42%, ctx=38, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144722: Tue Aug 18 03:11:02 2026 read: IOPS=0, BW=1039KiB/s (1064kB/s)(4096KiB/3941msec) clat (nsec): min=1141.6M, max=1141.6M, avg=1141572267.00, stdev= 0.00 lat (nsec): min=1141.6M, max=1141.6M, avg=1141595903.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1150], 5.00th=[ 1150], 10.00th=[ 1150], 20.00th=[ 1150], | 30.00th=[ 1150], 40.00th=[ 1150], 50.00th=[ 1150], 60.00th=[ 1150], | 70.00th=[ 1150], 80.00th=[ 1150], 90.00th=[ 1150], 95.00th=[ 1150], | 99.00th=[ 1150], 99.50th=[ 1150], 99.90th=[ 1150], 99.95th=[ 1150], | 99.99th=[ 1150] bw ( KiB/s): min= 7968, max= 7968, per=100.00%, avg=7968.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2079KiB/s (2129kB/s)(8192KiB/3941msec); 0 zone resets clat (msec): min=756, max=1692, avg=1224.42, stdev=661.63 lat (msec): min=758, max=1692, avg=1225.87, stdev=660.41 clat percentiles (msec): | 1.00th=[ 760], 5.00th=[ 760], 10.00th=[ 760], 20.00th=[ 760], | 30.00th=[ 760], 40.00th=[ 760], 50.00th=[ 760], 60.00th=[ 1687], | 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= 8143, max= 8143, per=97.94%, avg=8143.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 1000=33.33%, 2000=66.67% cpu : usr=0.00%, sys=4.04%, ctx=50, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144724: Tue Aug 18 03:11:02 2026 write: IOPS=2, BW=8451KiB/s (8654kB/s)(12.0MiB/1454msec); 0 zone resets clat (msec): min=354, max=428, avg=390.22, stdev=37.07 lat (msec): min=354, max=432, avg=391.73, stdev=38.75 clat percentiles (msec): | 1.00th=[ 355], 5.00th=[ 355], 10.00th=[ 355], 20.00th=[ 355], | 30.00th=[ 355], 40.00th=[ 388], 50.00th=[ 388], 60.00th=[ 388], | 70.00th=[ 430], 80.00th=[ 430], 90.00th=[ 430], 95.00th=[ 430], | 99.00th=[ 430], 99.50th=[ 430], 99.90th=[ 430], 99.95th=[ 430], | 99.99th=[ 430] bw ( KiB/s): min= 5744, max= 8159, per=83.61%, avg=6951.50, stdev=1707.66, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=100.00% cpu : usr=0.14%, sys=8.47%, ctx=68, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144725: Tue Aug 18 03:11:02 2026 write: IOPS=1, BW=5515KiB/s (5648kB/s)(12.0MiB/2228msec); 0 zone resets clat (msec): min=419, max=786, avg=654.04, stdev=203.64 lat (msec): min=422, max=787, avg=655.19, stdev=202.52 clat percentiles (msec): | 1.00th=[ 422], 5.00th=[ 422], 10.00th=[ 422], 20.00th=[ 422], | 30.00th=[ 422], 40.00th=[ 760], 50.00th=[ 760], 60.00th=[ 760], | 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= 7968, max= 8159, per=96.99%, avg=8063.50, stdev=135.06, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 1000=66.67% cpu : usr=0.00%, sys=4.49%, ctx=99, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=4157KiB/s (4257kB/s), 1039KiB/s-3923KiB/s (1064kB/s-4018kB/s), io=16.0MiB (16.8MB), run=3132-3941msec WRITE: bw=8315KiB/s (8514kB/s), 2079KiB/s-8451KiB/s (2129kB/s-8654kB/s), io=32.0MiB (33.6MB), run=1454-3941msec