== sanity test 398c: run fio to test AIO ================= 23:51:40 (1788839500) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.511636 s, 82.0 MB/s osc.lustre-OST0000-osc-ffff9c8118d93800.rpc_stats=clear writing 40M to OST0 by fio with 4 jobs... rand-write: (g=0): rw=randwrite, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=libaio, iodepth=16 ... fio-3.19 Starting 4 processes rand-write: (groupid=0, jobs=1): err= 0: pid=180729: Mon Sep 7 23:52:14 2026 write: IOPS=107, BW=432KiB/s (442kB/s)(10.0MiB/23707msec); 0 zone resets slat (usec): min=29, max=17758, avg=181.98, stdev=639.66 clat (msec): min=81, max=255, avg=147.12, stdev=29.65 lat (msec): min=81, max=255, avg=147.31, stdev=29.65 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 102], 10.00th=[ 109], 20.00th=[ 121], | 30.00th=[ 131], 40.00th=[ 138], 50.00th=[ 146], 60.00th=[ 155], | 70.00th=[ 161], 80.00th=[ 171], 90.00th=[ 184], 95.00th=[ 205], | 99.00th=[ 224], 99.50th=[ 226], 99.90th=[ 255], 99.95th=[ 255], | 99.99th=[ 255] bw ( KiB/s): min= 318, max= 638, per=24.94%, avg=430.72, stdev=67.05, samples=47 iops : min= 79, max= 159, avg=107.28, stdev=16.73, samples=47 lat (msec) : 100=4.57%, 250=95.27%, 500=0.16% cpu : usr=0.18%, sys=1.03%, ctx=2536, majf=0, minf=9 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 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=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,2560,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-write: (groupid=0, jobs=1): err= 0: pid=180730: Mon Sep 7 23:52:14 2026 write: IOPS=107, BW=432KiB/s (442kB/s)(10.0MiB/23705msec); 0 zone resets slat (usec): min=27, max=22103, avg=220.60, stdev=737.01 clat (msec): min=16, max=256, avg=147.24, stdev=30.09 lat (msec): min=16, max=256, avg=147.46, stdev=30.08 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 105], 10.00th=[ 111], 20.00th=[ 123], | 30.00th=[ 131], 40.00th=[ 138], 50.00th=[ 146], 60.00th=[ 155], | 70.00th=[ 161], 80.00th=[ 171], 90.00th=[ 184], 95.00th=[ 201], | 99.00th=[ 234], 99.50th=[ 239], 99.90th=[ 245], 99.95th=[ 257], | 99.99th=[ 257] bw ( KiB/s): min= 319, max= 622, per=24.93%, avg=430.62, stdev=63.41, samples=47 iops : min= 79, max= 155, avg=107.26, stdev=15.81, samples=47 lat (msec) : 20=0.04%, 50=0.12%, 100=3.63%, 250=96.13%, 500=0.08% cpu : usr=0.24%, sys=1.12%, ctx=2843, majf=0, minf=10 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 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=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,2560,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-write: (groupid=0, jobs=1): err= 0: pid=180731: Mon Sep 7 23:52:14 2026 write: IOPS=108, BW=435KiB/s (446kB/s)(10.0MiB/23523msec); 0 zone resets slat (usec): min=28, max=20821, avg=201.32, stdev=721.03 clat (msec): min=39, max=251, avg=146.64, stdev=31.37 lat (msec): min=39, max=251, avg=146.84, stdev=31.39 clat percentiles (msec): | 1.00th=[ 69], 5.00th=[ 99], 10.00th=[ 110], 20.00th=[ 122], | 30.00th=[ 132], 40.00th=[ 138], 50.00th=[ 144], 60.00th=[ 153], | 70.00th=[ 161], 80.00th=[ 169], 90.00th=[ 190], 95.00th=[ 205], | 99.00th=[ 228], 99.50th=[ 230], 99.90th=[ 251], 99.95th=[ 251], | 99.99th=[ 251] bw ( KiB/s): min= 272, max= 689, per=25.11%, avg=433.72, stdev=75.62, samples=46 iops : min= 68, max= 172, avg=108.02, stdev=18.89, samples=46 lat (msec) : 50=0.04%, 100=5.90%, 250=93.87%, 500=0.20% cpu : usr=0.19%, sys=1.08%, ctx=2575, majf=0, minf=11 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 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=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,2560,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-write: (groupid=0, jobs=1): err= 0: pid=180732: Mon Sep 7 23:52:14 2026 write: IOPS=108, BW=432KiB/s (442kB/s)(10.0MiB/23703msec); 0 zone resets slat (usec): min=28, max=16918, avg=208.29, stdev=581.45 clat (msec): min=22, max=254, avg=146.89, stdev=29.60 lat (msec): min=22, max=254, avg=147.10, stdev=29.59 clat percentiles (msec): | 1.00th=[ 79], 5.00th=[ 104], 10.00th=[ 111], 20.00th=[ 124], | 30.00th=[ 131], 40.00th=[ 138], 50.00th=[ 146], 60.00th=[ 153], | 70.00th=[ 161], 80.00th=[ 171], 90.00th=[ 184], 95.00th=[ 201], | 99.00th=[ 224], 99.50th=[ 241], 99.90th=[ 253], 99.95th=[ 253], | 99.99th=[ 255] bw ( KiB/s): min= 328, max= 574, per=24.94%, avg=430.70, stdev=60.75, samples=47 iops : min= 82, max= 143, avg=107.26, stdev=15.16, samples=47 lat (msec) : 50=0.12%, 100=3.83%, 250=95.78%, 500=0.27% cpu : usr=0.22%, sys=1.18%, ctx=3045, majf=0, minf=11 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 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=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,2560,0,0 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): WRITE: bw=1728KiB/s (1769kB/s), 432KiB/s-435KiB/s (442kB/s-446kB/s), io=40.0MiB (41.9MB), run=23523-23707msec mix rw 40M to OST0 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=libaio, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=180745: Mon Sep 7 23:52:56 2026 read: IOPS=35, BW=141KiB/s (144kB/s)(5048KiB/35819msec) slat (usec): min=2907, max=80421, avg=15455.32, stdev=9456.60 clat (msec): min=72, max=509, avg=210.67, stdev=60.84 lat (msec): min=78, max=551, avg=226.13, stdev=63.29 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 127], 10.00th=[ 142], 20.00th=[ 163], | 30.00th=[ 176], 40.00th=[ 190], 50.00th=[ 203], 60.00th=[ 218], | 70.00th=[ 234], 80.00th=[ 259], 90.00th=[ 288], 95.00th=[ 326], | 99.00th=[ 388], 99.50th=[ 430], 99.90th=[ 502], 99.95th=[ 510], | 99.99th=[ 510] bw ( KiB/s): min= 71, max= 223, per=24.94%, avg=139.69, stdev=37.42, samples=71 iops : min= 17, max= 55, avg=34.39, stdev= 9.38, samples=71 write: IOPS=36, BW=145KiB/s (148kB/s)(5192KiB/35819msec); 0 zone resets slat (usec): min=33, max=14953, avg=243.14, stdev=833.65 clat (msec): min=74, max=481, avg=219.20, stdev=63.48 lat (msec): min=74, max=481, avg=219.44, stdev=63.45 clat percentiles (msec): | 1.00th=[ 107], 5.00th=[ 131], 10.00th=[ 148], 20.00th=[ 167], | 30.00th=[ 182], 40.00th=[ 194], 50.00th=[ 211], 60.00th=[ 228], | 70.00th=[ 247], 80.00th=[ 266], 90.00th=[ 305], 95.00th=[ 342], | 99.00th=[ 393], 99.50th=[ 460], 99.90th=[ 481], 99.95th=[ 481], | 99.99th=[ 481] bw ( KiB/s): min= 63, max= 247, per=24.70%, avg=144.03, stdev=37.57, samples=71 iops : min= 15, max= 61, avg=35.52, stdev= 9.45, samples=71 lat (msec) : 100=0.98%, 250=73.67%, 500=25.27%, 750=0.08% cpu : usr=0.21%, sys=1.47%, ctx=4018, majf=0, minf=11 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 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=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1262,1298,0,0 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=180746: Mon Sep 7 23:52:56 2026 read: IOPS=34, BW=139KiB/s (142kB/s)(4976KiB/35769msec) slat (usec): min=3156, max=68233, avg=15814.27, stdev=9415.90 clat (msec): min=68, max=524, avg=213.36, stdev=65.16 lat (msec): min=76, max=546, avg=229.18, stdev=67.91 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 124], 10.00th=[ 140], 20.00th=[ 161], | 30.00th=[ 176], 40.00th=[ 190], 50.00th=[ 205], 60.00th=[ 222], | 70.00th=[ 239], 80.00th=[ 264], 90.00th=[ 300], 95.00th=[ 334], | 99.00th=[ 401], 99.50th=[ 468], 99.90th=[ 510], 99.95th=[ 527], | 99.99th=[ 527] bw ( KiB/s): min= 71, max= 224, per=24.69%, avg=138.27, stdev=35.95, samples=70 iops : min= 17, max= 56, avg=34.04, stdev= 9.06, samples=70 write: IOPS=36, BW=147KiB/s (151kB/s)(5264KiB/35769msec); 0 zone resets slat (usec): min=31, max=8293, avg=203.85, stdev=545.28 clat (msec): min=59, max=502, avg=216.01, stdev=61.16 lat (msec): min=59, max=502, avg=216.21, stdev=61.14 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 131], 10.00th=[ 146], 20.00th=[ 167], | 30.00th=[ 180], 40.00th=[ 194], 50.00th=[ 207], 60.00th=[ 224], | 70.00th=[ 243], 80.00th=[ 264], 90.00th=[ 296], 95.00th=[ 330], | 99.00th=[ 384], 99.50th=[ 418], 99.90th=[ 489], 99.95th=[ 502], | 99.99th=[ 502] bw ( KiB/s): min= 63, max= 253, per=25.22%, avg=147.06, stdev=43.76, samples=70 iops : min= 15, max= 63, avg=36.26, stdev=10.97, samples=70 lat (msec) : 100=1.48%, 250=73.52%, 500=24.80%, 750=0.20% cpu : usr=0.22%, sys=1.48%, ctx=4018, majf=0, minf=13 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 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=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1244,1316,0,0 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=180747: Mon Sep 7 23:52:56 2026 read: IOPS=34, BW=139KiB/s (142kB/s)(4984KiB/35818msec) slat (usec): min=3109, max=64979, avg=15476.11, stdev=9320.39 clat (msec): min=21, max=510, avg=211.26, stdev=64.71 lat (msec): min=45, max=550, avg=226.74, stdev=67.83 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 123], 10.00th=[ 140], 20.00th=[ 163], | 30.00th=[ 176], 40.00th=[ 188], 50.00th=[ 201], 60.00th=[ 218], | 70.00th=[ 236], 80.00th=[ 262], 90.00th=[ 300], 95.00th=[ 330], | 99.00th=[ 414], 99.50th=[ 472], 99.90th=[ 498], 99.95th=[ 510], | 99.99th=[ 510] bw ( KiB/s): min= 63, max= 263, per=24.73%, avg=138.49, stdev=41.41, samples=71 iops : min= 15, max= 65, avg=34.11, stdev=10.39, samples=71 write: IOPS=36, BW=147KiB/s (150kB/s)(5256KiB/35818msec); 0 zone resets slat (usec): min=32, max=14011, avg=212.82, stdev=717.24 clat (msec): min=84, max=465, avg=218.87, stdev=62.09 lat (msec): min=84, max=465, avg=219.08, stdev=62.06 clat percentiles (msec): | 1.00th=[ 105], 5.00th=[ 132], 10.00th=[ 144], 20.00th=[ 169], | 30.00th=[ 184], 40.00th=[ 197], 50.00th=[ 209], 60.00th=[ 226], | 70.00th=[ 243], 80.00th=[ 271], 90.00th=[ 305], 95.00th=[ 338], | 99.00th=[ 393], 99.50th=[ 401], 99.90th=[ 418], 99.95th=[ 468], | 99.99th=[ 468] bw ( KiB/s): min= 47, max= 287, per=24.91%, avg=145.24, stdev=40.49, samples=71 iops : min= 11, max= 71, avg=35.80, stdev=10.17, samples=71 lat (msec) : 50=0.04%, 100=1.13%, 250=73.48%, 500=25.31%, 750=0.04% cpu : usr=0.25%, sys=1.61%, ctx=4336, majf=0, minf=13 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 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=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1246,1314,0,0 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=180748: Mon Sep 7 23:52:56 2026 read: IOPS=35, BW=141KiB/s (145kB/s)(5060KiB/35761msec) slat (usec): min=38, max=72103, avg=15627.40, stdev=9009.32 clat (msec): min=9, max=473, avg=210.44, stdev=61.09 lat (msec): min=9, max=522, avg=226.07, stdev=63.83 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 123], 10.00th=[ 142], 20.00th=[ 161], | 30.00th=[ 176], 40.00th=[ 188], 50.00th=[ 203], 60.00th=[ 218], | 70.00th=[ 236], 80.00th=[ 262], 90.00th=[ 292], 95.00th=[ 321], | 99.00th=[ 380], 99.50th=[ 405], 99.90th=[ 472], 99.95th=[ 472], | 99.99th=[ 472] bw ( KiB/s): min= 71, max= 231, per=25.17%, avg=140.93, stdev=38.42, samples=70 iops : min= 17, max= 57, avg=34.71, stdev= 9.65, samples=70 write: IOPS=36, BW=145KiB/s (148kB/s)(5180KiB/35761msec); 0 zone resets slat (usec): min=32, max=12756, avg=237.72, stdev=806.63 clat (msec): min=43, max=479, avg=220.43, stdev=64.98 lat (msec): min=43, max=479, avg=220.67, stdev=64.94 clat percentiles (msec): | 1.00th=[ 105], 5.00th=[ 129], 10.00th=[ 146], 20.00th=[ 167], | 30.00th=[ 182], 40.00th=[ 199], 50.00th=[ 211], 60.00th=[ 228], | 70.00th=[ 247], 80.00th=[ 271], 90.00th=[ 313], 95.00th=[ 342], | 99.00th=[ 405], 99.50th=[ 414], 99.90th=[ 456], 99.95th=[ 481], | 99.99th=[ 481] bw ( KiB/s): min= 70, max= 221, per=24.67%, avg=143.80, stdev=37.06, samples=70 iops : min= 17, max= 55, avg=35.44, stdev= 9.33, samples=70 lat (msec) : 10=0.04%, 20=0.04%, 50=0.04%, 100=0.90%, 250=71.95% lat (msec) : 500=27.03% cpu : usr=0.21%, sys=1.62%, ctx=4062, majf=0, minf=14 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 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=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1265,1295,0,0 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=560KiB/s (574kB/s), 139KiB/s-141KiB/s (142kB/s-145kB/s), io=19.6MiB (20.5MB), run=35761-35819msec WRITE: bw=583KiB/s (597kB/s), 145KiB/s-147KiB/s (148kB/s-151kB/s), io=20.4MiB (21.4MB), run=35761-35819msec AIO with large block size 40M rand-rw: (g=0): rw=randrw, bs=(R) 40.0MiB-40.0MiB, (W) 40.0MiB-40.0MiB, (T) 40.0MiB-40.0MiB, ioengine=libaio, iodepth=16 fio-3.19 Starting 1 process rand-rw: (groupid=0, jobs=1): err= 0: pid=180757: Mon Sep 7 23:53:04 2026 read: IOPS=2, BW=92.8MiB/s (97.3MB/s)(40.0MiB/431msec) slat (nsec): min=40097k, max=40097k, avg=40097102.00, stdev= 0.00 clat (nsec): min=368924k, max=368924k, avg=368923515.00, stdev= 0.00 lat (nsec): min=409027k, max=409027k, avg=409027265.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 368], 5.00th=[ 368], 10.00th=[ 368], 20.00th=[ 368], | 30.00th=[ 368], 40.00th=[ 368], 50.00th=[ 368], 60.00th=[ 368], | 70.00th=[ 368], 80.00th=[ 368], 90.00th=[ 368], 95.00th=[ 368], | 99.00th=[ 368], 99.50th=[ 368], 99.90th=[ 368], 99.95th=[ 368], | 99.99th=[ 368] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=3.49%, ctx=5, 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=1,0,0,0 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=92.8MiB/s (97.3MB/s), 92.8MiB/s-92.8MiB/s (97.3MB/s-97.3MB/s), io=40.0MiB (41.9MB), run=431-431msec debug=trace inode super iotrace malloc cache info ioctl neterror net warning buffs other dentry nettrace page dlmtrace error emerg ha rpctrace vfstrace reada mmap config console quota sec lfsck hsm snapshot layout