== sanity test 398b: DIO and buffer IO race ============== 03:42:05 (1787470925) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 5.0024 s, 10.1 MB/s mix direct rw 4096 by fio with 4 jobs... mix buffer rw 4096 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=143924: Sun Aug 23 03:44:42 2026 read: IOPS=10, BW=43.3KiB/s (44.3kB/s)(5992KiB/138372msec) clat (usec): min=36, max=297956, avg=45103.78, stdev=32836.23 lat (usec): min=37, max=297958, avg=45107.10, stdev=32838.28 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 70], 10.00th=[ 1598], 20.00th=[ 22152], | 30.00th=[ 27919], 40.00th=[ 33162], 50.00th=[ 39584], 60.00th=[ 45876], | 70.00th=[ 54789], 80.00th=[ 66847], 90.00th=[ 82314], 95.00th=[101188], | 99.00th=[158335], 99.50th=[196084], 99.90th=[291505], 99.95th=[299893], | 99.99th=[299893] bw ( KiB/s): min= 7, max= 103, per=25.46%, avg=43.03, stdev=17.74, samples=271 iops : min= 1, max= 25, avg=10.11, stdev= 4.46, samples=271 write: IOPS=11, BW=45.5KiB/s (46.6kB/s)(6296KiB/138372msec); 0 zone resets clat (usec): min=1212, max=430001, avg=44850.48, stdev=46045.84 lat (usec): min=1213, max=430002, avg=44868.10, stdev=46037.01 clat percentiles (usec): | 1.00th=[ 1369], 5.00th=[ 1680], 10.00th=[ 2868], 20.00th=[ 6325], | 30.00th=[ 11207], 40.00th=[ 21365], 50.00th=[ 32375], 60.00th=[ 44303], | 70.00th=[ 58459], 80.00th=[ 76022], 90.00th=[107480], 95.00th=[129500], | 99.00th=[177210], 99.50th=[238027], 99.90th=[417334], 99.95th=[429917], | 99.99th=[429917] bw ( KiB/s): min= 7, max= 101, per=25.46%, avg=45.06, stdev=19.27, samples=272 iops : min= 1, max= 25, avg=10.62, stdev= 4.85, samples=272 lat (usec) : 50=0.29%, 100=3.91%, 250=0.42%, 500=0.10%, 750=0.03% lat (usec) : 1000=0.10% lat (msec) : 2=3.52%, 4=3.48%, 10=7.58%, 20=8.04%, 50=37.24% lat (msec) : 100=26.56%, 250=8.43%, 500=0.29% cpu : usr=0.08%, sys=5.32%, ctx=6964, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=143925: Sun Aug 23 03:44:42 2026 read: IOPS=10, BW=41.9KiB/s (42.9kB/s)(5940KiB/141642msec) clat (usec): min=36, max=519474, avg=46585.74, stdev=35939.58 lat (usec): min=36, max=519476, avg=46591.92, stdev=35939.75 clat percentiles (usec): | 1.00th=[ 56], 5.00th=[ 72], 10.00th=[ 330], 20.00th=[ 22152], | 30.00th=[ 28967], 40.00th=[ 34341], 50.00th=[ 40633], 60.00th=[ 47973], | 70.00th=[ 57410], 80.00th=[ 68682], 90.00th=[ 86508], 95.00th=[101188], | 99.00th=[170918], 99.50th=[181404], 99.90th=[312476], 99.95th=[517997], | 99.99th=[517997] bw ( KiB/s): min= 7, max= 86, per=24.91%, avg=42.11, stdev=16.79, samples=273 iops : min= 1, max= 21, avg= 9.88, stdev= 4.24, samples=273 write: IOPS=11, BW=44.8KiB/s (45.9kB/s)(6348KiB/141642msec); 0 zone resets clat (usec): min=1167, max=301827, avg=45517.26, stdev=45455.44 lat (usec): min=1167, max=301829, avg=45520.44, stdev=45454.32 clat percentiles (usec): | 1.00th=[ 1369], 5.00th=[ 1827], 10.00th=[ 3097], 20.00th=[ 5932], | 30.00th=[ 10683], 40.00th=[ 21890], 50.00th=[ 34341], 60.00th=[ 45876], | 70.00th=[ 60031], 80.00th=[ 78119], 90.00th=[107480], 95.00th=[130548], | 99.00th=[202376], 99.50th=[238027], 99.90th=[291505], 99.95th=[299893], | 99.99th=[299893] bw ( KiB/s): min= 7, max= 103, per=24.85%, avg=43.99, stdev=19.41, samples=279 iops : min= 1, max= 25, avg=10.35, stdev= 4.87, samples=279 lat (usec) : 50=0.29%, 100=3.84%, 250=0.62%, 500=0.16%, 750=0.13% lat (usec) : 1000=0.07% lat (msec) : 2=2.99%, 4=3.97%, 10=8.11%, 20=8.01%, 50=34.21% lat (msec) : 100=28.97%, 250=8.27%, 500=0.33%, 750=0.03% cpu : usr=0.08%, sys=5.38%, ctx=7067, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=143926: Sun Aug 23 03:44:42 2026 read: IOPS=10, BW=42.6KiB/s (43.6kB/s)(6028KiB/141631msec) clat (usec): min=38, max=417212, avg=45754.06, stdev=35628.53 lat (usec): min=38, max=417212, avg=45766.52, stdev=35622.78 clat percentiles (usec): | 1.00th=[ 56], 5.00th=[ 71], 10.00th=[ 269], 20.00th=[ 22152], | 30.00th=[ 28181], 40.00th=[ 33424], 50.00th=[ 39060], 60.00th=[ 44827], | 70.00th=[ 54789], 80.00th=[ 66847], 90.00th=[ 87557], 95.00th=[106431], | 99.00th=[166724], 99.50th=[221250], 99.90th=[304088], 99.95th=[417334], | 99.99th=[417334] bw ( KiB/s): min= 7, max= 102, per=25.10%, avg=42.41, stdev=19.18, samples=276 iops : min= 1, max= 25, avg= 9.95, stdev= 4.82, samples=276 write: IOPS=11, BW=44.2KiB/s (45.3kB/s)(6260KiB/141631msec); 0 zone resets clat (usec): min=1234, max=507408, avg=46262.35, stdev=45443.63 lat (usec): min=1236, max=507410, avg=46277.23, stdev=45438.73 clat percentiles (usec): | 1.00th=[ 1385], 5.00th=[ 1745], 10.00th=[ 3032], 20.00th=[ 6194], | 30.00th=[ 11338], 40.00th=[ 24773], 50.00th=[ 34866], 60.00th=[ 46924], | 70.00th=[ 60031], 80.00th=[ 79168], 90.00th=[107480], 95.00th=[135267], | 99.00th=[183501], 99.50th=[217056], 99.90th=[278922], 99.95th=[505414], | 99.99th=[505414] bw ( KiB/s): min= 7, max= 103, per=24.56%, avg=43.47, stdev=19.08, samples=279 iops : min= 1, max= 25, avg=10.22, stdev= 4.82, samples=279 lat (usec) : 50=0.29%, 100=3.81%, 250=0.75%, 500=0.29%, 750=0.03% lat (msec) : 2=3.16%, 4=4.00%, 10=7.16%, 20=7.85%, 50=36.82% lat (msec) : 100=26.79%, 250=8.85%, 500=0.16%, 750=0.03% cpu : usr=0.08%, sys=5.28%, ctx=6994, 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=143927: Sun Aug 23 03:44:42 2026 read: IOPS=10, BW=43.1KiB/s (44.1kB/s)(6052KiB/140419msec) clat (usec): min=31, max=342356, avg=44821.22, stdev=33480.98 lat (usec): min=32, max=342357, avg=44823.53, stdev=33481.41 clat percentiles (usec): | 1.00th=[ 47], 5.00th=[ 67], 10.00th=[ 112], 20.00th=[ 21103], | 30.00th=[ 26870], 40.00th=[ 32900], 50.00th=[ 39584], 60.00th=[ 47449], | 70.00th=[ 56886], 80.00th=[ 67634], 90.00th=[ 85459], 95.00th=[ 98042], | 99.00th=[141558], 99.50th=[162530], 99.90th=[329253], 99.95th=[341836], | 99.99th=[341836] bw ( KiB/s): min= 7, max= 104, per=25.48%, avg=43.05, stdev=19.15, samples=274 iops : min= 1, max= 26, avg=10.11, stdev= 4.83, samples=274 write: IOPS=11, BW=44.4KiB/s (45.5kB/s)(6236KiB/140419msec); 0 zone resets clat (usec): min=1184, max=700894, avg=46450.34, stdev=51445.91 lat (usec): min=1186, max=700896, avg=46453.33, stdev=51446.43 clat percentiles (usec): | 1.00th=[ 1369], 5.00th=[ 1860], 10.00th=[ 2999], 20.00th=[ 6325], | 30.00th=[ 11469], 40.00th=[ 22152], 50.00th=[ 32637], 60.00th=[ 44303], | 70.00th=[ 59507], 80.00th=[ 78119], 90.00th=[107480], 95.00th=[135267], | 99.00th=[210764], 99.50th=[287310], 99.90th=[434111], 99.95th=[700449], | 99.99th=[700449] bw ( KiB/s): min= 7, max= 87, per=24.95%, avg=44.16, stdev=18.50, samples=275 iops : min= 1, max= 21, avg=10.39, stdev= 4.64, samples=275 lat (usec) : 50=0.59%, 100=4.10%, 250=0.72%, 500=0.13%, 750=0.16% lat (usec) : 1000=0.07% lat (msec) : 2=2.86%, 4=4.20%, 10=7.68%, 20=8.37%, 50=34.60% lat (msec) : 100=28.16%, 250=7.91%, 500=0.42%, 750=0.03% cpu : usr=0.08%, sys=5.32%, ctx=6972, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=170KiB/s (174kB/s), 41.9KiB/s-43.3KiB/s (42.9kB/s-44.3kB/s), io=23.4MiB (24.6MB), run=138372-141642msec WRITE: bw=177KiB/s (182kB/s), 44.2KiB/s-45.5KiB/s (45.3kB/s-46.6kB/s), io=24.6MiB (25.7MB), run=138372-141642msec fio: pid=143919, err=5/file:backend.c:481, func=full resid, error=Input/output error rand-rw: (groupid=0, jobs=1): err= 5 (file:backend.c:481, func=full resid, error=Input/output error): pid=143919: Sun Aug 23 03:46:44 2026 read: IOPS=4, BW=18.2KiB/s (18.7kB/s)(3436KiB/188439msec) clat (msec): min=6, max=743, avg=51.79, stdev=55.07 lat (msec): min=6, max=743, avg=51.80, stdev=55.07 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 27], 50.00th=[ 36], 60.00th=[ 44], | 70.00th=[ 58], 80.00th=[ 79], 90.00th=[ 112], 95.00th=[ 150], | 99.00th=[ 251], 99.50th=[ 317], 99.90th=[ 743], 99.95th=[ 743], | 99.99th=[ 743] bw ( KiB/s): min= 7, max= 103, per=26.14%, avg=21.18, stdev=15.33, samples=311 iops : min= 1, max= 25, avg= 4.63, stdev= 3.89, samples=311 write: IOPS=4, BW=19.4KiB/s (19.8kB/s)(3648KiB/188439msec); 0 zone resets clat (msec): min=40, max=588, avg=157.35, stdev=77.21 lat (msec): min=40, max=588, avg=157.35, stdev=77.21 clat percentiles (msec): | 1.00th=[ 54], 5.00th=[ 68], 10.00th=[ 78], 20.00th=[ 90], | 30.00th=[ 108], 40.00th=[ 125], 50.00th=[ 142], 60.00th=[ 163], | 70.00th=[ 186], 80.00th=[ 215], 90.00th=[ 257], 95.00th=[ 300], | 99.00th=[ 405], 99.50th=[ 472], 99.90th=[ 592], 99.95th=[ 592], | 99.99th=[ 592] bw ( KiB/s): min= 7, max= 55, per=22.43%, avg=19.07, stdev=10.18, samples=364 iops : min= 1, max= 13, avg= 4.10, stdev= 2.61, samples=364 lat (msec) : 10=1.41%, 20=12.53%, 50=17.38%, 100=25.06%, 250=37.13% lat (msec) : 500=6.15%, 750=0.28% cpu : usr=0.04%, sys=1.24%, ctx=2833, majf=0, minf=21 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=860,912,0,0 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=143920: Sun Aug 23 03:46:44 2026 read: IOPS=5, BW=22.5KiB/s (23.1kB/s)(5940KiB/263877msec) clat (msec): min=6, max=780, avg=40.90, stdev=44.99 lat (msec): min=6, max=780, avg=40.91, stdev=44.99 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 20], 40.00th=[ 24], 50.00th=[ 28], 60.00th=[ 34], | 70.00th=[ 41], 80.00th=[ 56], 90.00th=[ 86], 95.00th=[ 115], | 99.00th=[ 190], 99.50th=[ 232], 99.90th=[ 760], 99.95th=[ 785], | 99.99th=[ 785] bw ( KiB/s): min= 7, max= 86, per=31.93%, avg=25.87, stdev=16.72, samples=444 iops : min= 1, max= 21, avg= 5.82, stdev= 4.25, samples=444 write: IOPS=6, BW=24.1KiB/s (24.6kB/s)(6348KiB/263877msec); 0 zone resets clat (msec): min=38, max=544, avg=127.72, stdev=69.03 lat (msec): min=38, max=544, avg=127.72, stdev=69.03 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 58], 10.00th=[ 65], 20.00th=[ 74], | 30.00th=[ 84], 40.00th=[ 93], 50.00th=[ 105], 60.00th=[ 121], | 70.00th=[ 148], 80.00th=[ 178], 90.00th=[ 226], 95.00th=[ 271], | 99.00th=[ 359], 99.50th=[ 397], 99.90th=[ 527], 99.95th=[ 542], | 99.99th=[ 542] bw ( KiB/s): min= 7, max= 56, per=28.05%, avg=23.84, stdev=12.10, samples=513 iops : min= 1, max= 14, avg= 5.30, stdev= 3.09, samples=513 lat (msec) : 10=1.63%, 20=13.05%, 50=23.63%, 100=30.37%, 250=27.73% lat (msec) : 500=3.45%, 750=0.07%, 1000=0.07% cpu : usr=0.05%, sys=1.64%, ctx=5984, 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=143921: Sun Aug 23 03:46:44 2026 read: IOPS=5, BW=22.9KiB/s (23.4kB/s)(6028KiB/263548msec) clat (msec): min=6, max=772, avg=40.67, stdev=41.23 lat (msec): min=6, max=772, avg=40.68, stdev=41.23 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 25], 50.00th=[ 29], 60.00th=[ 35], | 70.00th=[ 43], 80.00th=[ 56], 90.00th=[ 80], 95.00th=[ 110], | 99.00th=[ 188], 99.50th=[ 218], 99.90th=[ 527], 99.95th=[ 776], | 99.99th=[ 776] bw ( KiB/s): min= 7, max= 102, per=31.21%, avg=25.28, stdev=17.09, samples=460 iops : min= 1, max= 25, avg= 5.67, stdev= 4.33, samples=460 write: IOPS=5, BW=23.8KiB/s (24.3kB/s)(6260KiB/263548msec); 0 zone resets clat (msec): min=31, max=865, avg=128.94, stdev=76.84 lat (msec): min=31, max=865, avg=128.95, stdev=76.84 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 57], 10.00th=[ 64], 20.00th=[ 74], | 30.00th=[ 84], 40.00th=[ 93], 50.00th=[ 105], 60.00th=[ 118], | 70.00th=[ 144], 80.00th=[ 176], 90.00th=[ 226], 95.00th=[ 279], | 99.00th=[ 405], 99.50th=[ 439], 99.90th=[ 818], 99.95th=[ 869], | 99.99th=[ 869] bw ( KiB/s): min= 7, max= 55, per=27.80%, avg=23.63, stdev=12.36, samples=510 iops : min= 1, max= 13, avg= 5.25, stdev= 3.15, samples=510 lat (msec) : 10=1.95%, 20=12.34%, 50=24.19%, 100=31.41%, 250=26.24% lat (msec) : 500=3.71%, 750=0.07%, 1000=0.10% cpu : usr=0.06%, sys=1.56%, ctx=5854, 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=143922: Sun Aug 23 03:46:44 2026 read: IOPS=5, BW=22.9KiB/s (23.5kB/s)(6052KiB/264174msec) clat (msec): min=6, max=755, avg=40.76, stdev=42.05 lat (msec): min=6, max=755, avg=40.76, stdev=42.05 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 25], 50.00th=[ 29], 60.00th=[ 34], | 70.00th=[ 42], 80.00th=[ 52], 90.00th=[ 85], 95.00th=[ 112], | 99.00th=[ 192], 99.50th=[ 236], 99.90th=[ 393], 99.95th=[ 760], | 99.99th=[ 760] bw ( KiB/s): min= 7, max= 103, per=31.56%, avg=25.56, stdev=17.38, samples=457 iops : min= 1, max= 25, avg= 5.74, stdev= 4.39, samples=457 write: IOPS=5, BW=23.6KiB/s (24.2kB/s)(6236KiB/264174msec); 0 zone resets clat (msec): min=33, max=886, avg=129.59, stdev=74.93 lat (msec): min=33, max=886, avg=129.60, stdev=74.94 clat percentiles (msec): | 1.00th=[ 49], 5.00th=[ 57], 10.00th=[ 65], 20.00th=[ 75], | 30.00th=[ 85], 40.00th=[ 95], 50.00th=[ 107], 60.00th=[ 123], | 70.00th=[ 148], 80.00th=[ 174], 90.00th=[ 226], 95.00th=[ 266], | 99.00th=[ 380], 99.50th=[ 439], 99.90th=[ 810], 99.95th=[ 885], | 99.99th=[ 885] bw ( KiB/s): min= 7, max= 55, per=27.67%, avg=23.52, stdev=11.71, samples=510 iops : min= 1, max= 13, avg= 5.22, stdev= 2.99, samples=510 lat (msec) : 10=1.73%, 20=13.12%, 50=24.61%, 100=28.91%, 250=28.16% lat (msec) : 500=3.35%, 750=0.03%, 1000=0.10% cpu : usr=0.05%, sys=1.62%, ctx=6127, 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=81.2KiB/s (83.2kB/s), 18.2KiB/s-22.9KiB/s (18.7kB/s-23.5kB/s), io=20.0MiB (21.0MB), run=188439-264174msec WRITE: bw=85.1KiB/s (87.2kB/s), 19.4KiB/s-24.1KiB/s (19.8kB/s-24.6kB/s), io=21.0MiB (23.0MB), run=188439-264174msec 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=143990: Sun Aug 23 03:47:28 2026 read: IOPS=12, BW=201KiB/s (206kB/s)(5920KiB/29483msec) clat (usec): min=35, max=155628, avg=41747.38, stdev=30193.08 lat (usec): min=35, max=155629, avg=41750.60, stdev=30197.28 clat percentiles (usec): | 1.00th=[ 43], 5.00th=[ 67], 10.00th=[ 77], 20.00th=[ 18744], | 30.00th=[ 27395], 40.00th=[ 33817], 50.00th=[ 39584], 60.00th=[ 46400], | 70.00th=[ 52691], 80.00th=[ 63177], 90.00th=[ 77071], 95.00th=[ 91751], | 99.00th=[141558], 99.50th=[152044], 99.90th=[156238], 99.95th=[156238], | 99.99th=[156238] bw ( KiB/s): min= 64, max= 446, per=27.97%, avg=200.79, stdev=77.80, samples=58 iops : min= 4, max= 27, avg=11.78, stdev= 4.87, samples=58 write: IOPS=13, BW=216KiB/s (221kB/s)(6368KiB/29483msec); 0 zone resets clat (usec): min=1842, max=167627, avg=34694.65, stdev=33513.37 lat (usec): min=1847, max=167631, avg=34705.37, stdev=33517.41 clat percentiles (msec): | 1.00th=[ 3], 5.00th=[ 3], 10.00th=[ 4], 20.00th=[ 8], | 30.00th=[ 10], 40.00th=[ 15], 50.00th=[ 23], 60.00th=[ 34], | 70.00th=[ 44], 80.00th=[ 62], 90.00th=[ 85], 95.00th=[ 101], | 99.00th=[ 148], 99.50th=[ 165], 99.90th=[ 167], 99.95th=[ 167], | 99.99th=[ 167] bw ( KiB/s): min= 29, max= 453, per=28.57%, avg=216.02, stdev=99.79, samples=58 iops : min= 1, max= 28, avg=12.74, stdev= 6.30, samples=58 lat (usec) : 50=0.91%, 100=5.99%, 250=0.78%, 750=0.52%, 1000=0.13% lat (msec) : 2=0.52%, 4=5.21%, 10=10.81%, 20=9.11%, 50=36.33% lat (msec) : 100=25.52%, 250=4.17% cpu : usr=0.10%, sys=6.71%, ctx=1749, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=143991: Sun Aug 23 03:47:28 2026 read: IOPS=10, BW=172KiB/s (177kB/s)(5744KiB/33316msec) clat (usec): min=40, max=203419, avg=43814.27, stdev=33301.27 lat (usec): min=40, max=203421, avg=43840.21, stdev=33318.40 clat percentiles (usec): | 1.00th=[ 51], 5.00th=[ 72], 10.00th=[ 92], 20.00th=[ 20317], | 30.00th=[ 28443], 40.00th=[ 34341], 50.00th=[ 39584], 60.00th=[ 45876], | 70.00th=[ 54264], 80.00th=[ 65274], 90.00th=[ 84411], 95.00th=[104334], | 99.00th=[154141], 99.50th=[200279], 99.90th=[202376], 99.95th=[202376], | 99.99th=[202376] bw ( KiB/s): min= 30, max= 381, per=24.61%, avg=176.68, stdev=75.46, samples=63 iops : min= 1, max= 23, avg=10.29, stdev= 4.78, samples=63 write: IOPS=12, BW=196KiB/s (201kB/s)(6544KiB/33316msec); 0 zone resets clat (usec): min=1812, max=366415, avg=42203.56, stdev=48689.59 lat (usec): min=1814, max=366418, avg=42214.59, stdev=48689.34 clat percentiles (usec): | 1.00th=[ 1991], 5.00th=[ 2606], 10.00th=[ 3982], 20.00th=[ 6587], | 30.00th=[ 10421], 40.00th=[ 16581], 50.00th=[ 27395], 60.00th=[ 38011], | 70.00th=[ 51643], 80.00th=[ 68682], 90.00th=[ 90702], 95.00th=[133694], | 99.00th=[221250], 99.50th=[263193], 99.90th=[367002], 99.95th=[367002], | 99.99th=[367002] bw ( KiB/s): min= 30, max= 423, per=25.61%, avg=193.65, stdev=102.75, samples=65 iops : min= 1, max= 26, avg=11.34, stdev= 6.49, samples=65 lat (usec) : 50=0.39%, 100=4.82%, 250=1.43%, 500=0.52%, 1000=0.26% lat (msec) : 2=0.78%, 4=5.08%, 10=10.03%, 20=9.11%, 50=34.90% lat (msec) : 100=25.39%, 250=6.90%, 500=0.39% cpu : usr=0.06%, sys=5.90%, ctx=1681, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=143992: Sun Aug 23 03:47:28 2026 read: IOPS=13, BW=208KiB/s (213kB/s)(6256KiB/30037msec) clat (usec): min=39, max=168279, avg=40771.32, stdev=30280.38 lat (usec): min=39, max=168280, avg=40773.11, stdev=30280.46 clat percentiles (usec): | 1.00th=[ 44], 5.00th=[ 70], 10.00th=[ 84], 20.00th=[ 9241], | 30.00th=[ 26346], 40.00th=[ 32637], 50.00th=[ 38536], 60.00th=[ 45351], | 70.00th=[ 53216], 80.00th=[ 63701], 90.00th=[ 79168], 95.00th=[ 91751], | 99.00th=[141558], 99.50th=[162530], 99.90th=[168821], 99.95th=[168821], | 99.99th=[168821] bw ( KiB/s): min= 92, max= 415, per=29.51%, avg=211.90, stdev=79.80, samples=58 iops : min= 5, max= 25, avg=12.47, stdev= 5.00, samples=58 write: IOPS=12, BW=201KiB/s (206kB/s)(6032KiB/30037msec); 0 zone resets clat (usec): min=1931, max=200800, avg=36360.56, stdev=35496.25 lat (usec): min=1933, max=200804, avg=36366.18, stdev=35495.81 clat percentiles (msec): | 1.00th=[ 3], 5.00th=[ 4], 10.00th=[ 5], 20.00th=[ 8], | 30.00th=[ 11], 40.00th=[ 15], 50.00th=[ 27], 60.00th=[ 35], | 70.00th=[ 45], 80.00th=[ 61], 90.00th=[ 87], 95.00th=[ 112], | 99.00th=[ 161], 99.50th=[ 182], 99.90th=[ 201], 99.95th=[ 201], | 99.99th=[ 201] bw ( KiB/s): min= 31, max= 442, per=26.19%, avg=197.98, stdev=82.34, samples=59 iops : min= 1, max= 27, avg=11.61, stdev= 5.16, samples=59 lat (usec) : 50=1.04%, 100=6.38%, 250=1.43%, 500=0.26%, 1000=0.39% lat (msec) : 2=0.26%, 4=3.78%, 10=11.46%, 20=8.33%, 50=36.07% lat (msec) : 100=26.17%, 250=4.43% cpu : usr=0.10%, sys=6.82%, ctx=1733, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=143993: Sun Aug 23 03:47:28 2026 read: IOPS=12, BW=194KiB/s (199kB/s)(6032KiB/31084msec) clat (usec): min=43, max=228228, avg=43331.02, stdev=31584.84 lat (usec): min=44, max=228229, avg=43334.63, stdev=31582.54 clat percentiles (usec): | 1.00th=[ 61], 5.00th=[ 74], 10.00th=[ 84], 20.00th=[ 21890], | 30.00th=[ 28967], 40.00th=[ 36963], 50.00th=[ 41681], 60.00th=[ 47449], | 70.00th=[ 54789], 80.00th=[ 63701], 90.00th=[ 81265], 95.00th=[ 95945], | 99.00th=[141558], 99.50th=[208667], 99.90th=[227541], 99.95th=[227541], | 99.99th=[227541] bw ( KiB/s): min= 61, max= 318, per=27.23%, avg=195.53, stdev=58.46, samples=60 iops : min= 3, max= 19, avg=11.45, stdev= 3.61, samples=60 write: IOPS=12, BW=201KiB/s (206kB/s)(6256KiB/31084msec); 0 zone resets clat (usec): min=1795, max=217641, avg=37420.85, stdev=37622.59 lat (usec): min=1797, max=217645, avg=37423.90, stdev=37622.58 clat percentiles (usec): | 1.00th=[ 1942], 5.00th=[ 2966], 10.00th=[ 4621], 20.00th=[ 6980], | 30.00th=[ 10290], 40.00th=[ 14615], 50.00th=[ 21890], 60.00th=[ 36439], | 70.00th=[ 50070], 80.00th=[ 65274], 90.00th=[ 87557], 95.00th=[108528], | 99.00th=[168821], 99.50th=[206570], 99.90th=[217056], 99.95th=[217056], | 99.99th=[217056] bw ( KiB/s): min= 32, max= 382, per=26.59%, avg=201.03, stdev=88.44, samples=61 iops : min= 2, max= 23, avg=11.80, stdev= 5.55, samples=61 lat (usec) : 50=0.39%, 100=6.12%, 250=1.69%, 1000=0.26% lat (msec) : 2=0.65%, 4=3.39%, 10=10.81%, 20=10.42%, 50=33.59% lat (msec) : 100=27.34%, 250=5.34% cpu : usr=0.06%, sys=6.23%, ctx=1714, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=719KiB/s (736kB/s), 172KiB/s-208KiB/s (177kB/s-213kB/s), io=23.4MiB (24.5MB), run=29483-33316msec WRITE: bw=756KiB/s (775kB/s), 196KiB/s-216KiB/s (201kB/s-221kB/s), io=24.6MiB (25.8MB), run=29483-33316msec rand-rw: (groupid=0, jobs=1): err= 0: pid=143986: Sun Aug 23 03:48:03 2026 read: IOPS=5, BW=87.1KiB/s (89.2kB/s)(5920KiB/67972msec) clat (msec): min=8, max=285, avg=41.25, stdev=37.85 lat (msec): min=8, max=285, avg=41.25, stdev=37.85 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 12], 10.00th=[ 15], 20.00th=[ 17], | 30.00th=[ 20], 40.00th=[ 23], 50.00th=[ 27], 60.00th=[ 32], | 70.00th=[ 42], 80.00th=[ 61], 90.00th=[ 90], 95.00th=[ 127], | 99.00th=[ 180], 99.50th=[ 228], 99.90th=[ 288], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 30, max= 318, per=27.43%, avg=96.02, stdev=57.06, samples=121 iops : min= 1, max= 19, avg= 5.23, stdev= 3.56, samples=121 write: IOPS=5, BW=93.7KiB/s (95.9kB/s)(6368KiB/67972msec); 0 zone resets clat (msec): min=46, max=403, avg=131.79, stdev=58.34 lat (msec): min=46, max=403, avg=131.80, stdev=58.35 clat percentiles (msec): | 1.00th=[ 53], 5.00th=[ 65], 10.00th=[ 71], 20.00th=[ 86], | 30.00th=[ 96], 40.00th=[ 108], 50.00th=[ 121], 60.00th=[ 131], | 70.00th=[ 148], 80.00th=[ 167], 90.00th=[ 209], 95.00th=[ 247], | 99.00th=[ 338], 99.50th=[ 376], 99.90th=[ 405], 99.95th=[ 405], | 99.99th=[ 405] bw ( KiB/s): min= 29, max= 192, per=25.90%, avg=95.31, stdev=41.99, samples=131 iops : min= 1, max= 12, avg= 5.18, stdev= 2.70, samples=131 lat (msec) : 10=0.91%, 20=14.58%, 50=21.22%, 100=25.26%, 250=35.42% lat (msec) : 500=2.60% cpu : usr=0.05%, sys=1.67%, ctx=1367, 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=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=143987: Sun Aug 23 03:48:03 2026 read: IOPS=5, BW=84.0KiB/s (86.1kB/s)(5744KiB/68351msec) clat (msec): min=7, max=225, avg=38.53, stdev=35.33 lat (msec): min=7, max=225, avg=38.54, stdev=35.33 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 17], | 30.00th=[ 20], 40.00th=[ 23], 50.00th=[ 25], 60.00th=[ 29], | 70.00th=[ 37], 80.00th=[ 54], 90.00th=[ 87], 95.00th=[ 125], | 99.00th=[ 184], 99.50th=[ 224], 99.90th=[ 226], 99.95th=[ 226], | 99.99th=[ 226] bw ( KiB/s): min= 29, max= 349, per=28.11%, avg=98.38, stdev=69.80, samples=114 iops : min= 1, max= 21, avg= 5.35, stdev= 4.40, samples=114 write: IOPS=5, BW=95.7KiB/s (98.0kB/s)(6544KiB/68351msec); 0 zone resets clat (msec): min=43, max=406, avg=132.42, stdev=61.08 lat (msec): min=43, max=406, avg=132.44, stdev=61.10 clat percentiles (msec): | 1.00th=[ 52], 5.00th=[ 64], 10.00th=[ 73], 20.00th=[ 84], | 30.00th=[ 94], 40.00th=[ 108], 50.00th=[ 115], 60.00th=[ 130], | 70.00th=[ 148], 80.00th=[ 171], 90.00th=[ 222], 95.00th=[ 266], | 99.00th=[ 330], 99.50th=[ 363], 99.90th=[ 405], 99.95th=[ 405], | 99.99th=[ 405] bw ( KiB/s): min= 29, max= 192, per=26.14%, avg=96.21, stdev=40.36, samples=133 iops : min= 1, max= 12, avg= 5.23, stdev= 2.64, samples=133 lat (msec) : 10=0.91%, 20=14.19%, 50=22.14%, 100=24.48%, 250=35.29% lat (msec) : 500=2.99% cpu : usr=0.05%, sys=1.69%, ctx=1406, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=143988: Sun Aug 23 03:48:03 2026 read: IOPS=5, BW=94.3KiB/s (96.6kB/s)(6256KiB/66343msec) clat (msec): min=7, max=297, avg=41.37, stdev=41.87 lat (msec): min=7, max=297, avg=41.37, stdev=41.87 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 17], | 30.00th=[ 19], 40.00th=[ 22], 50.00th=[ 25], 60.00th=[ 29], | 70.00th=[ 37], 80.00th=[ 59], 90.00th=[ 95], 95.00th=[ 127], | 99.00th=[ 205], 99.50th=[ 268], 99.90th=[ 300], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 30, max= 319, per=29.20%, avg=102.20, stdev=67.90, samples=121 iops : min= 1, max= 19, avg= 5.60, stdev= 4.28, samples=121 write: IOPS=5, BW=90.9KiB/s (93.1kB/s)(6032KiB/66343msec); 0 zone resets clat (msec): min=40, max=371, avg=132.87, stdev=56.73 lat (msec): min=40, max=371, avg=132.87, stdev=56.73 clat percentiles (msec): | 1.00th=[ 56], 5.00th=[ 66], 10.00th=[ 77], 20.00th=[ 87], | 30.00th=[ 96], 40.00th=[ 108], 50.00th=[ 117], 60.00th=[ 134], | 70.00th=[ 150], 80.00th=[ 171], 90.00th=[ 215], 95.00th=[ 253], | 99.00th=[ 309], 99.50th=[ 355], 99.90th=[ 372], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 30, max= 190, per=25.36%, avg=93.32, stdev=39.53, samples=127 iops : min= 1, max= 11, avg= 5.04, stdev= 2.53, samples=127 lat (msec) : 10=0.78%, 20=17.06%, 50=21.35%, 100=23.57%, 250=34.51% lat (msec) : 500=2.73% cpu : usr=0.04%, sys=1.71%, ctx=1403, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=143989: Sun Aug 23 03:48:03 2026 read: IOPS=5, BW=88.9KiB/s (91.0kB/s)(6032KiB/67867msec) clat (msec): min=8, max=311, avg=41.21, stdev=41.17 lat (msec): min=8, max=311, avg=41.21, stdev=41.17 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 12], 10.00th=[ 15], 20.00th=[ 18], | 30.00th=[ 21], 40.00th=[ 24], 50.00th=[ 27], 60.00th=[ 33], | 70.00th=[ 41], 80.00th=[ 51], 90.00th=[ 88], 95.00th=[ 140], | 99.00th=[ 226], 99.50th=[ 288], 99.90th=[ 313], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 31, max= 287, per=27.84%, avg=97.45, stdev=59.38, samples=121 iops : min= 1, max= 17, avg= 5.32, stdev= 3.77, samples=121 write: IOPS=5, BW=92.2KiB/s (94.4kB/s)(6256KiB/67867msec); 0 zone resets clat (msec): min=39, max=390, avg=133.43, stdev=57.45 lat (msec): min=39, max=390, avg=133.43, stdev=57.45 clat percentiles (msec): | 1.00th=[ 53], 5.00th=[ 65], 10.00th=[ 73], 20.00th=[ 89], | 30.00th=[ 99], 40.00th=[ 107], 50.00th=[ 118], 60.00th=[ 130], | 70.00th=[ 153], 80.00th=[ 180], 90.00th=[ 213], 95.00th=[ 247], | 99.00th=[ 321], 99.50th=[ 355], 99.90th=[ 393], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 30, max= 190, per=24.92%, avg=91.72, stdev=41.61, samples=134 iops : min= 1, max= 11, avg= 4.95, stdev= 2.67, samples=134 lat (msec) : 10=0.65%, 20=13.67%, 50=24.74%, 100=23.57%, 250=34.64% lat (msec) : 500=2.73% cpu : usr=0.06%, sys=1.61%, ctx=1342, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=350KiB/s (359kB/s), 84.0KiB/s-94.3KiB/s (86.1kB/s-96.6kB/s), io=23.4MiB (24.5MB), run=66343-68351msec WRITE: bw=369KiB/s (378kB/s), 90.9KiB/s-95.7KiB/s (93.1kB/s-98.0kB/s), io=24.6MiB (25.8MB), run=66343-68351msec 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=144010: Sun Aug 23 03:48:18 2026 read: IOPS=1, BW=1164KiB/s (1192kB/s)(7168KiB/6156msec) clat (msec): min=133, max=564, avg=303.35, stdev=150.35 lat (msec): min=133, max=564, avg=303.35, stdev=150.35 clat percentiles (msec): | 1.00th=[ 134], 5.00th=[ 134], 10.00th=[ 134], 20.00th=[ 211], | 30.00th=[ 224], 40.00th=[ 224], 50.00th=[ 268], 60.00th=[ 275], | 70.00th=[ 275], 80.00th=[ 451], 90.00th=[ 567], 95.00th=[ 567], | 99.00th=[ 567], 99.50th=[ 567], 99.90th=[ 567], 99.95th=[ 567], | 99.99th=[ 567] bw ( KiB/s): min= 1497, max= 4096, per=91.05%, avg=2902.75, stdev=1347.42, samples=4 iops : min= 1, max= 4, avg= 2.25, stdev= 1.50, samples=4 write: IOPS=0, BW=832KiB/s (852kB/s)(5120KiB/6156msec); 0 zone resets clat (msec): min=446, max=1314, avg=775.34, stdev=363.98 lat (msec): min=446, max=1315, avg=775.68, stdev=364.20 clat percentiles (msec): | 1.00th=[ 447], 5.00th=[ 447], 10.00th=[ 447], 20.00th=[ 447], | 30.00th=[ 481], 40.00th=[ 481], 50.00th=[ 676], 60.00th=[ 676], | 70.00th=[ 961], 80.00th=[ 961], 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= 1976, max= 2043, per=45.20%, avg=2017.25, stdev=32.31, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 lat (msec) : 250=25.00%, 500=41.67%, 750=16.67%, 1000=8.33%, 2000=8.33% cpu : usr=0.02%, sys=2.97%, ctx=98, 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=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=144011: Sun Aug 23 03:48:18 2026 read: IOPS=0, BW=319KiB/s (327kB/s)(2048KiB/6423msec) clat (msec): min=117, max=156, avg=137.11, stdev=27.28 lat (msec): min=117, max=156, avg=137.11, stdev=27.28 clat percentiles (msec): | 1.00th=[ 118], 5.00th=[ 118], 10.00th=[ 118], 20.00th=[ 118], | 30.00th=[ 118], 40.00th=[ 118], 50.00th=[ 118], 60.00th=[ 157], | 70.00th=[ 157], 80.00th=[ 157], 90.00th=[ 157], 95.00th=[ 157], | 99.00th=[ 157], 99.50th=[ 157], 99.90th=[ 157], 99.95th=[ 157], | 99.99th=[ 157] bw ( KiB/s): min= 1471, max= 2011, per=54.61%, avg=1741.00, stdev=381.84, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1594KiB/s (1633kB/s)(10.0MiB/6423msec); 0 zone resets clat (msec): min=331, max=860, avg=608.09, stdev=166.29 lat (msec): min=331, max=860, avg=608.27, stdev=166.30 clat percentiles (msec): | 1.00th=[ 334], 5.00th=[ 334], 10.00th=[ 334], 20.00th=[ 426], | 30.00th=[ 439], 40.00th=[ 575], 50.00th=[ 634], 60.00th=[ 667], | 70.00th=[ 684], 80.00th=[ 684], 90.00th=[ 785], 95.00th=[ 860], | 99.00th=[ 860], 99.50th=[ 860], 99.90th=[ 860], 99.95th=[ 860], | 99.99th=[ 860] bw ( KiB/s): min= 1943, max= 2048, per=44.99%, avg=2007.78, stdev=34.42, samples=9 iops : min= 1, max= 2, avg= 1.11, stdev= 0.33, samples=9 lat (msec) : 250=16.67%, 500=25.00%, 750=41.67%, 1000=16.67% cpu : usr=0.00%, sys=2.63%, ctx=80, 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=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=144012: Sun Aug 23 03:48:18 2026 read: IOPS=0, BW=962KiB/s (985kB/s)(6144KiB/6390msec) clat (msec): min=136, max=1125, avg=365.35, stdev=377.85 lat (msec): min=136, max=1125, avg=365.35, stdev=377.85 clat percentiles (msec): | 1.00th=[ 136], 5.00th=[ 136], 10.00th=[ 136], 20.00th=[ 153], | 30.00th=[ 153], 40.00th=[ 211], 50.00th=[ 211], 60.00th=[ 264], | 70.00th=[ 309], 80.00th=[ 309], 90.00th=[ 1133], 95.00th=[ 1133], | 99.00th=[ 1133], 99.50th=[ 1133], 99.90th=[ 1133], 99.95th=[ 1133], | 99.99th=[ 1133] bw ( KiB/s): min= 1943, max= 4087, per=79.05%, avg=2520.00, stdev=1045.48, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=0, BW=962KiB/s (985kB/s)(6144KiB/6390msec); 0 zone resets clat (msec): min=279, max=1570, avg=681.92, stdev=474.37 lat (msec): min=280, max=1571, avg=682.07, stdev=474.32 clat percentiles (msec): | 1.00th=[ 279], 5.00th=[ 279], 10.00th=[ 279], 20.00th=[ 376], | 30.00th=[ 376], 40.00th=[ 405], 50.00th=[ 405], 60.00th=[ 726], | 70.00th=[ 735], 80.00th=[ 735], 90.00th=[ 1569], 95.00th=[ 1569], | 99.00th=[ 1569], 99.50th=[ 1569], 99.90th=[ 1569], 99.95th=[ 1569], | 99.99th=[ 1569] bw ( KiB/s): min= 1454, max= 2048, per=43.07%, avg=1922.33, stdev=232.89, samples=6 iops : min= 1, max= 2, avg= 1.17, stdev= 0.41, samples=6 lat (msec) : 250=25.00%, 500=41.67%, 750=16.67%, 2000=16.67% cpu : usr=0.00%, sys=3.05%, ctx=85, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144013: Sun Aug 23 03:48:18 2026 read: IOPS=0, BW=908KiB/s (929kB/s)(5120KiB/5641msec) clat (msec): min=116, max=670, avg=341.03, stdev=242.32 lat (msec): min=116, max=670, avg=341.03, stdev=242.32 clat percentiles (msec): | 1.00th=[ 117], 5.00th=[ 117], 10.00th=[ 117], 20.00th=[ 117], | 30.00th=[ 157], 40.00th=[ 157], 50.00th=[ 243], 60.00th=[ 243], | 70.00th=[ 518], 80.00th=[ 518], 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= 4023, max= 4087, per=100.00%, avg=4055.00, stdev=45.25, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1271KiB/s (1301kB/s)(7168KiB/5641msec); 0 zone resets clat (msec): min=252, max=1206, avg=556.63, stdev=320.83 lat (msec): min=252, max=1206, avg=556.74, stdev=320.82 clat percentiles (msec): | 1.00th=[ 253], 5.00th=[ 253], 10.00th=[ 253], 20.00th=[ 338], | 30.00th=[ 376], 40.00th=[ 376], 50.00th=[ 460], 60.00th=[ 600], | 70.00th=[ 600], 80.00th=[ 659], 90.00th=[ 1200], 95.00th=[ 1200], | 99.00th=[ 1200], 99.50th=[ 1200], 99.90th=[ 1200], 99.95th=[ 1200], | 99.99th=[ 1200] bw ( KiB/s): min= 1438, max= 2048, per=42.78%, avg=1909.17, stdev=234.25, samples=6 iops : min= 1, max= 2, avg= 1.17, stdev= 0.41, samples=6 lat (msec) : 250=25.00%, 500=33.33%, 750=33.33%, 2000=8.33% cpu : usr=0.00%, sys=3.74%, ctx=120, 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=3189KiB/s (3265kB/s), 319KiB/s-1164KiB/s (327kB/s-1192kB/s), io=20.0MiB (20.0MB), run=5641-6423msec WRITE: bw=4464KiB/s (4571kB/s), 832KiB/s-1594KiB/s (852kB/s-1633kB/s), io=28.0MiB (29.4MB), run=5641-6423msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144015: Sun Aug 23 03:48:18 2026 read: IOPS=2, BW=2112KiB/s (2163kB/s)(7168KiB/3394msec) clat (msec): min=7, max=350, avg=187.73, stdev=104.53 lat (msec): min=7, max=350, avg=187.73, stdev=104.53 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 8], 10.00th=[ 8], 20.00th=[ 153], | 30.00th=[ 171], 40.00th=[ 171], 50.00th=[ 186], 60.00th=[ 188], | 70.00th=[ 188], 80.00th=[ 259], 90.00th=[ 351], 95.00th=[ 351], | 99.00th=[ 351], 99.50th=[ 351], 99.90th=[ 351], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 2011, max= 4087, per=96.67%, avg=2985.25, stdev=1127.63, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 write: IOPS=1, BW=1509KiB/s (1545kB/s)(5120KiB/3394msec); 0 zone resets clat (msec): min=224, max=792, avg=402.53, stdev=224.02 lat (msec): min=224, max=792, avg=402.85, stdev=223.92 clat percentiles (msec): | 1.00th=[ 224], 5.00th=[ 224], 10.00th=[ 224], 20.00th=[ 224], | 30.00th=[ 305], 40.00th=[ 305], 50.00th=[ 321], 60.00th=[ 321], | 70.00th=[ 372], 80.00th=[ 372], 90.00th=[ 793], 95.00th=[ 793], | 99.00th=[ 793], 99.50th=[ 793], 99.90th=[ 793], 99.95th=[ 793], | 99.99th=[ 793] bw ( KiB/s): min= 1845, max= 3670, per=55.18%, avg=2385.25, stdev=860.16, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (msec) : 10=8.33%, 250=41.67%, 500=41.67%, 1000=8.33% cpu : usr=0.00%, sys=17.27%, ctx=207, 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=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=144016: Sun Aug 23 03:48:18 2026 read: IOPS=0, BW=309KiB/s (316kB/s)(2048KiB/6632msec) clat (usec): min=1854, max=260346, avg=131100.43, stdev=182780.95 lat (usec): min=1856, max=260347, avg=131101.76, stdev=182780.59 clat percentiles (usec): | 1.00th=[ 1860], 5.00th=[ 1860], 10.00th=[ 1860], 20.00th=[ 1860], | 30.00th=[ 1860], 40.00th=[ 1860], 50.00th=[ 1860], 60.00th=[261096], | 70.00th=[261096], 80.00th=[261096], 90.00th=[261096], 95.00th=[261096], | 99.00th=[261096], 99.50th=[261096], 99.90th=[261096], 99.95th=[261096], | 99.99th=[261096] bw ( KiB/s): min= 1976, max= 2011, per=64.56%, avg=1993.50, stdev=24.75, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1544KiB/s (1581kB/s)(10.0MiB/6632msec); 0 zone resets clat (msec): min=254, max=1162, avg=599.80, stdev=312.57 lat (msec): min=255, max=1164, avg=600.10, stdev=312.82 clat percentiles (msec): | 1.00th=[ 255], 5.00th=[ 255], 10.00th=[ 255], 20.00th=[ 292], | 30.00th=[ 305], 40.00th=[ 472], 50.00th=[ 498], 60.00th=[ 575], | 70.00th=[ 634], 80.00th=[ 743], 90.00th=[ 1062], 95.00th=[ 1167], | 99.00th=[ 1167], 99.50th=[ 1167], 99.90th=[ 1167], 99.95th=[ 1167], | 99.99th=[ 1167] bw ( KiB/s): min= 1835, max= 4071, per=51.78%, avg=2238.38, stdev=743.01, samples=8 iops : min= 1, max= 3, avg= 1.25, stdev= 0.71, samples=8 lat (msec) : 2=8.33%, 500=50.00%, 750=25.00%, 2000=16.67% cpu : usr=0.02%, sys=10.09%, ctx=202, 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=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=144017: Sun Aug 23 03:48:18 2026 read: IOPS=1, BW=1285KiB/s (1316kB/s)(6144KiB/4781msec) clat (usec): min=1406, max=387779, avg=174575.54, stdev=162832.49 lat (usec): min=1407, max=387781, avg=174577.19, stdev=162832.74 clat percentiles (usec): | 1.00th=[ 1401], 5.00th=[ 1401], 10.00th=[ 1401], 20.00th=[ 1582], | 30.00th=[ 1582], 40.00th=[135267], 50.00th=[135267], 60.00th=[187696], | 70.00th=[333448], 80.00th=[333448], 90.00th=[387974], 95.00th=[387974], | 99.00th=[387974], 99.50th=[387974], 99.90th=[387974], 99.95th=[387974], | 99.99th=[387974] bw ( KiB/s): min= 1976, max= 4031, per=81.52%, avg=2517.25, stdev=1009.52, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1285KiB/s (1316kB/s)(6144KiB/4781msec); 0 zone resets clat (msec): min=156, max=1210, avg=542.86, stdev=435.96 lat (msec): min=157, max=1212, avg=543.53, stdev=436.46 clat percentiles (msec): | 1.00th=[ 157], 5.00th=[ 157], 10.00th=[ 157], 20.00th=[ 174], | 30.00th=[ 174], 40.00th=[ 201], 50.00th=[ 201], 60.00th=[ 709], | 70.00th=[ 818], 80.00th=[ 818], 90.00th=[ 1217], 95.00th=[ 1217], | 99.00th=[ 1217], 99.50th=[ 1217], 99.90th=[ 1217], 99.95th=[ 1217], | 99.99th=[ 1217] bw ( KiB/s): min= 1976, max= 2043, per=46.68%, avg=2017.83, stdev=24.14, samples=6 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=6 lat (msec) : 2=16.67%, 250=41.67%, 500=16.67%, 750=8.33%, 1000=8.33% lat (msec) : 2000=8.33% cpu : usr=0.02%, sys=10.27%, ctx=226, 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=144018: Sun Aug 23 03:48:18 2026 read: IOPS=1, BW=1209KiB/s (1238kB/s)(5120KiB/4235msec) clat (usec): min=692, max=592339, avg=166213.64, stdev=255799.81 lat (usec): min=693, max=592341, avg=166215.16, stdev=255800.19 clat percentiles (usec): | 1.00th=[ 693], 5.00th=[ 693], 10.00th=[ 693], 20.00th=[ 693], | 30.00th=[ 1106], 40.00th=[ 1106], 50.00th=[ 16188], 60.00th=[ 16188], | 70.00th=[221250], 80.00th=[221250], 90.00th=[591397], 95.00th=[591397], | 99.00th=[591397], 99.50th=[591397], 99.90th=[591397], 99.95th=[591397], | 99.99th=[591397] bw ( KiB/s): min= 1835, max= 6047, per=100.00%, avg=3941.00, stdev=2978.33, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=1, BW=1693KiB/s (1733kB/s)(7168KiB/4235msec); 0 zone resets clat (msec): min=245, max=661, avg=418.34, stdev=149.53 lat (msec): min=245, max=661, avg=432.93, stdev=144.41 clat percentiles (msec): | 1.00th=[ 247], 5.00th=[ 247], 10.00th=[ 247], 20.00th=[ 268], | 30.00th=[ 330], 40.00th=[ 330], 50.00th=[ 422], 60.00th=[ 477], | 70.00th=[ 477], 80.00th=[ 527], 90.00th=[ 659], 95.00th=[ 659], | 99.00th=[ 659], 99.50th=[ 659], 99.90th=[ 659], 99.95th=[ 659], | 99.99th=[ 659] bw ( KiB/s): min= 1835, max= 4087, per=63.96%, avg=2765.00, stdev=1190.70, samples=5 iops : min= 1, max= 3, avg= 1.80, stdev= 1.10, samples=5 lat (usec) : 750=8.33% lat (msec) : 2=8.33%, 20=8.33%, 250=16.67%, 500=33.33%, 750=25.00% cpu : usr=0.00%, sys=12.56%, ctx=216, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=3088KiB/s (3162kB/s), 309KiB/s-2112KiB/s (316kB/s-2163kB/s), io=20.0MiB (20.0MB), run=3394-6632msec WRITE: bw=4323KiB/s (4427kB/s), 1285KiB/s-1693KiB/s (1316kB/s-1733kB/s), io=28.0MiB (29.4MB), run=3394-6632msec 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=144025: Sun Aug 23 03:48:37 2026 read: IOPS=0, BW=1721KiB/s (1763kB/s)(12.0MiB/7139msec) clat (msec): min=821, max=5004, avg=2367.39, stdev=2294.94 lat (msec): min=821, max=5004, avg=2367.39, stdev=2294.94 clat percentiles (msec): | 1.00th=[ 818], 5.00th=[ 818], 10.00th=[ 818], 20.00th=[ 818], | 30.00th=[ 818], 40.00th=[ 1284], 50.00th=[ 1284], 60.00th=[ 1284], | 70.00th=[ 5000], 80.00th=[ 5000], 90.00th=[ 5000], 95.00th=[ 5000], | 99.00th=[ 5000], 99.50th=[ 5000], 99.90th=[ 5000], 99.95th=[ 5000], | 99.99th=[ 5000] bw ( KiB/s): min= 7787, max= 8175, per=100.00%, avg=7981.00, stdev=274.36, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=6.12%, ctx=580, 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=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=144026: Sun Aug 23 03:48:37 2026 read: IOPS=0, BW=541KiB/s (554kB/s)(4096KiB/7568msec) clat (nsec): min=4983.0M, max=4983.0M, avg=4983959853.00, stdev= 0.00 lat (nsec): min=4983.0M, max=4983.0M, avg=4983962108.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 5000], 5.00th=[ 5000], 10.00th=[ 5000], 20.00th=[ 5000], | 30.00th=[ 5000], 40.00th=[ 5000], 50.00th=[ 5000], 60.00th=[ 5000], | 70.00th=[ 5000], 80.00th=[ 5000], 90.00th=[ 5000], 95.00th=[ 5000], | 99.00th=[ 5000], 99.50th=[ 5000], 99.90th=[ 5000], 99.95th=[ 5000], | 99.99th=[ 5000] bw ( KiB/s): min= 8175, max= 8175, per=100.00%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=1082KiB/s (1108kB/s)(8192KiB/7568msec); 0 zone resets clat (msec): min=651, max=1819, avg=1235.33, stdev=825.95 lat (msec): min=651, max=1826, avg=1239.24, stdev=830.84 clat percentiles (msec): | 1.00th=[ 651], 5.00th=[ 651], 10.00th=[ 651], 20.00th=[ 651], | 30.00th=[ 651], 40.00th=[ 651], 50.00th=[ 651], 60.00th=[ 1821], | 70.00th=[ 1821], 80.00th=[ 1821], 90.00th=[ 1821], 95.00th=[ 1821], | 99.00th=[ 1821], 99.50th=[ 1821], 99.90th=[ 1821], 99.95th=[ 1821], | 99.99th=[ 1821] bw ( KiB/s): min= 8175, max= 8175, per=100.00%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.08%, sys=3.00%, ctx=451, 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=144027: Sun Aug 23 03:48:37 2026 write: IOPS=0, BW=1622KiB/s (1661kB/s)(12.0MiB/7574msec); 0 zone resets clat (msec): min=794, max=4872, avg=2489.14, stdev=2124.78 lat (msec): min=794, max=4873, avg=2489.65, stdev=2124.77 clat percentiles (msec): | 1.00th=[ 793], 5.00th=[ 793], 10.00th=[ 793], 20.00th=[ 793], | 30.00th=[ 793], 40.00th=[ 1804], 50.00th=[ 1804], 60.00th=[ 1804], | 70.00th=[ 4866], 80.00th=[ 4866], 90.00th=[ 4866], 95.00th=[ 4866], | 99.00th=[ 4866], 99.50th=[ 4866], 99.90th=[ 4866], 99.95th=[ 4866], | 99.99th=[ 4866] bw ( KiB/s): min= 8175, max= 8192, per=100.00%, avg=8183.50, stdev=12.02, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 1000=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=2.84%, ctx=106, 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 rand-rw: (groupid=0, jobs=1): err= 0: pid=144028: Sun Aug 23 03:48:37 2026 write: IOPS=0, BW=1874KiB/s (1919kB/s)(12.0MiB/6556msec); 0 zone resets clat (msec): min=492, max=4019, avg=2143.51, stdev=1774.07 lat (msec): min=492, max=4019, avg=2143.96, stdev=1773.98 clat percentiles (msec): | 1.00th=[ 493], 5.00th=[ 493], 10.00th=[ 493], 20.00th=[ 493], | 30.00th=[ 493], 40.00th=[ 1921], 50.00th=[ 1921], 60.00th=[ 1921], | 70.00th=[ 4010], 80.00th=[ 4010], 90.00th=[ 4010], 95.00th=[ 4010], | 99.00th=[ 4010], 99.50th=[ 4010], 99.90th=[ 4010], 99.95th=[ 4010], | 99.99th=[ 4010] bw ( KiB/s): min= 6501, max= 8000, per=100.00%, avg=7250.50, stdev=1059.95, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.09%, sys=2.09%, 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=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=2165KiB/s (2217kB/s), 541KiB/s-1721KiB/s (554kB/s-1763kB/s), io=16.0MiB (16.8MB), run=7139-7568msec WRITE: bw=4326KiB/s (4430kB/s), 1082KiB/s-1874KiB/s (1108kB/s-1919kB/s), io=32.0MiB (33.6MB), run=6556-7574msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144030: Sun Aug 23 03:48:38 2026 read: IOPS=0, BW=1664KiB/s (1704kB/s)(12.0MiB/7383msec) clat (msec): min=988, max=4691, avg=2460.46, stdev=1964.69 lat (msec): min=988, max=4691, avg=2460.46, stdev=1964.69 clat percentiles (msec): | 1.00th=[ 986], 5.00th=[ 986], 10.00th=[ 986], 20.00th=[ 986], | 30.00th=[ 986], 40.00th=[ 1703], 50.00th=[ 1703], 60.00th=[ 1703], | 70.00th=[ 4665], 80.00th=[ 4665], 90.00th=[ 4665], 95.00th=[ 4665], | 99.00th=[ 4665], 99.50th=[ 4665], 99.90th=[ 4665], 99.95th=[ 4665], | 99.99th=[ 4665] bw ( KiB/s): min= 8000, max= 8094, per=100.00%, avg=8047.00, stdev=66.47, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.01%, sys=1.61%, ctx=59, 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=144031: Sun Aug 23 03:48:38 2026 read: IOPS=0, BW=522KiB/s (534kB/s)(4096KiB/7853msec) clat (nsec): min=5012.2M, max=5012.2M, avg=5012232425.00, stdev= 0.00 lat (nsec): min=5012.2M, max=5012.2M, avg=5012234967.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 5000], 5.00th=[ 5000], 10.00th=[ 5000], 20.00th=[ 5000], | 30.00th=[ 5000], 40.00th=[ 5000], 50.00th=[ 5000], 60.00th=[ 5000], | 70.00th=[ 5000], 80.00th=[ 5000], 90.00th=[ 5000], 95.00th=[ 5000], | 99.00th=[ 5000], 99.50th=[ 5000], 99.90th=[ 5000], 99.95th=[ 5000], | 99.99th=[ 5000] bw ( KiB/s): min= 8094, max= 8094, per=100.00%, avg=8094.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=1043KiB/s (1068kB/s)(8192KiB/7853msec); 0 zone resets clat (msec): min=555, max=2261, avg=1408.66, stdev=1206.60 lat (msec): min=558, max=2262, avg=1410.61, stdev=1204.56 clat percentiles (msec): | 1.00th=[ 558], 5.00th=[ 558], 10.00th=[ 558], 20.00th=[ 558], | 30.00th=[ 558], 40.00th=[ 558], 50.00th=[ 558], 60.00th=[ 2265], | 70.00th=[ 2265], 80.00th=[ 2265], 90.00th=[ 2265], 95.00th=[ 2265], | 99.00th=[ 2265], 99.50th=[ 2265], 99.90th=[ 2265], 99.95th=[ 2265], | 99.99th=[ 2265] bw ( KiB/s): min= 8126, max= 8126, per=100.00%, avg=8126.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=33.33%, >=2000=66.67% cpu : usr=0.00%, sys=1.40%, ctx=76, 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=144032: Sun Aug 23 03:48:38 2026 write: IOPS=0, BW=1557KiB/s (1594kB/s)(12.0MiB/7893msec); 0 zone resets clat (msec): min=552, max=5462, avg=2611.66, stdev=2548.93 lat (msec): min=554, max=5462, avg=2612.71, stdev=2548.33 clat percentiles (msec): | 1.00th=[ 550], 5.00th=[ 550], 10.00th=[ 550], 20.00th=[ 550], | 30.00th=[ 550], 40.00th=[ 1821], 50.00th=[ 1821], 60.00th=[ 1821], | 70.00th=[ 5470], 80.00th=[ 5470], 90.00th=[ 5470], 95.00th=[ 5470], | 99.00th=[ 5470], 99.50th=[ 5470], 99.90th=[ 5470], 99.95th=[ 5470], | 99.99th=[ 5470] bw ( KiB/s): min= 8143, max= 8192, per=100.00%, avg=8167.50, stdev=34.65, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 750=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.01%, sys=1.43%, ctx=44, 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=144033: Sun Aug 23 03:48:38 2026 write: IOPS=0, BW=2008KiB/s (2056kB/s)(12.0MiB/6121msec); 0 zone resets clat (msec): min=311, max=4310, avg=2038.58, stdev=2054.18 lat (msec): min=312, max=4310, avg=2039.03, stdev=2054.31 clat percentiles (msec): | 1.00th=[ 313], 5.00th=[ 313], 10.00th=[ 313], 20.00th=[ 313], | 30.00th=[ 313], 40.00th=[ 1502], 50.00th=[ 1502], 60.00th=[ 1502], | 70.00th=[ 4329], 80.00th=[ 4329], 90.00th=[ 4329], 95.00th=[ 4329], | 99.00th=[ 4329], 99.50th=[ 4329], 99.90th=[ 4329], 99.95th=[ 4329], | 99.99th=[ 4329] bw ( KiB/s): min= 5979, max= 8143, per=100.00%, avg=7061.00, stdev=1530.18, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=1.80%, ctx=43, 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=2086KiB/s (2136kB/s), 522KiB/s-1664KiB/s (534kB/s-1704kB/s), io=16.0MiB (16.8MB), run=7383-7853msec WRITE: bw=4152KiB/s (4251kB/s), 1043KiB/s-2008KiB/s (1068kB/s-2056kB/s), io=32.0MiB (33.6MB), run=6121-7893msec