== sanity test 398c: run fio to test AIO ================= 21:04:19 (1786755859) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.62844 s, 66.7 MB/s osc.lustre-OST0000-osc-ffff932ea0207800.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=145957: Fri Aug 14 21:06:51 2026 write: IOPS=18, BW=72.6KiB/s (74.3kB/s)(10.0MiB/141078msec); 0 zone resets slat (usec): min=50, max=14773, avg=222.45, stdev=663.83 clat (msec): min=88, max=1769, avg=880.71, stdev=234.89 lat (msec): min=88, max=1769, avg=880.94, stdev=234.89 clat percentiles (msec): | 1.00th=[ 296], 5.00th=[ 558], 10.00th=[ 634], 20.00th=[ 718], | 30.00th=[ 768], 40.00th=[ 810], 50.00th=[ 860], 60.00th=[ 902], | 70.00th=[ 961], 80.00th=[ 1045], 90.00th=[ 1183], 95.00th=[ 1334], | 99.00th=[ 1536], 99.50th=[ 1653], 99.90th=[ 1770], 99.95th=[ 1770], | 99.99th=[ 1770] bw ( KiB/s): min= 7, max= 264, per=25.79%, avg=74.80, stdev=33.25, samples=270 iops : min= 1, max= 66, avg=18.32, stdev= 8.31, samples=270 lat (msec) : 100=0.04%, 250=0.62%, 500=2.77%, 750=23.16%, 1000=49.41% lat (msec) : 2000=23.98% cpu : usr=0.04%, sys=0.26%, ctx=1860, 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=145958: Fri Aug 14 21:06:51 2026 write: IOPS=18, BW=72.6KiB/s (74.3kB/s)(10.0MiB/141079msec); 0 zone resets slat (usec): min=45, max=13560, avg=254.58, stdev=733.00 clat (msec): min=134, max=1814, avg=881.20, stdev=234.81 lat (msec): min=135, max=1814, avg=881.46, stdev=234.82 clat percentiles (msec): | 1.00th=[ 313], 5.00th=[ 575], 10.00th=[ 642], 20.00th=[ 701], | 30.00th=[ 760], 40.00th=[ 810], 50.00th=[ 852], 60.00th=[ 902], | 70.00th=[ 961], 80.00th=[ 1045], 90.00th=[ 1183], 95.00th=[ 1301], | 99.00th=[ 1603], 99.50th=[ 1636], 99.90th=[ 1821], 99.95th=[ 1821], | 99.99th=[ 1821] bw ( KiB/s): min= 7, max= 198, per=25.41%, avg=73.69, stdev=34.98, samples=274 iops : min= 1, max= 49, avg=18.05, stdev= 8.75, samples=274 lat (msec) : 250=0.47%, 500=3.01%, 750=23.98%, 1000=47.89%, 2000=24.65% cpu : usr=0.04%, sys=0.27%, ctx=2033, 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=145959: Fri Aug 14 21:06:51 2026 write: IOPS=18, BW=72.6KiB/s (74.4kB/s)(10.0MiB/141020msec); 0 zone resets slat (usec): min=49, max=14601, avg=246.48, stdev=667.86 clat (msec): min=188, max=1786, avg=880.14, stdev=233.43 lat (msec): min=188, max=1786, avg=880.39, stdev=233.42 clat percentiles (msec): | 1.00th=[ 309], 5.00th=[ 558], 10.00th=[ 642], 20.00th=[ 709], | 30.00th=[ 760], 40.00th=[ 810], 50.00th=[ 860], 60.00th=[ 902], | 70.00th=[ 969], 80.00th=[ 1045], 90.00th=[ 1167], 95.00th=[ 1301], | 99.00th=[ 1586], 99.50th=[ 1653], 99.90th=[ 1787], 99.95th=[ 1787], | 99.99th=[ 1787] bw ( KiB/s): min= 7, max= 256, per=25.33%, avg=73.45, stdev=28.90, samples=275 iops : min= 1, max= 64, avg=17.99, stdev= 7.27, samples=275 lat (msec) : 250=0.62%, 500=2.73%, 750=25.00%, 1000=45.90%, 2000=25.74% cpu : usr=0.04%, sys=0.28%, ctx=2024, 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=145960: Fri Aug 14 21:06:51 2026 write: IOPS=18, BW=72.6KiB/s (74.3kB/s)(10.0MiB/141120msec); 0 zone resets slat (usec): min=46, max=14520, avg=249.89, stdev=754.83 clat (msec): min=205, max=1787, avg=880.88, stdev=232.35 lat (msec): min=205, max=1787, avg=881.13, stdev=232.38 clat percentiles (msec): | 1.00th=[ 338], 5.00th=[ 558], 10.00th=[ 634], 20.00th=[ 709], | 30.00th=[ 768], 40.00th=[ 810], 50.00th=[ 852], 60.00th=[ 902], | 70.00th=[ 969], 80.00th=[ 1045], 90.00th=[ 1167], 95.00th=[ 1334], | 99.00th=[ 1552], 99.50th=[ 1603], 99.90th=[ 1720], 99.95th=[ 1720], | 99.99th=[ 1787] bw ( KiB/s): min= 8, max= 206, per=24.79%, avg=71.88, stdev=28.74, samples=281 iops : min= 2, max= 51, avg=17.59, stdev= 7.23, samples=281 lat (msec) : 250=0.62%, 500=3.16%, 750=23.16%, 1000=47.11%, 2000=25.94% cpu : usr=0.05%, sys=0.30%, ctx=2015, 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 Run status group 0 (all jobs): WRITE: bw=290KiB/s (297kB/s), 72.6KiB/s-72.6KiB/s (74.3kB/s-74.4kB/s), io=40.0MiB (41.9MB), run=141020-141120msec 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=145990: Fri Aug 14 21:08:31 2026 read: IOPS=13, BW=54.6KiB/s (55.9kB/s)(5048KiB/92512msec) slat (usec): min=2877, max=46501, avg=12337.12, stdev=6384.68 clat (msec): min=22, max=598, avg=359.57, stdev=77.97 lat (msec): min=28, max=618, avg=371.91, stdev=78.68 clat percentiles (msec): | 1.00th=[ 171], 5.00th=[ 243], 10.00th=[ 268], 20.00th=[ 292], | 30.00th=[ 317], 40.00th=[ 338], 50.00th=[ 355], 60.00th=[ 376], | 70.00th=[ 397], 80.00th=[ 422], 90.00th=[ 464], 95.00th=[ 493], | 99.00th=[ 542], 99.50th=[ 567], 99.90th=[ 575], 99.95th=[ 600], | 99.99th=[ 600] bw ( KiB/s): min= 7, max= 120, per=24.97%, avg=53.95, stdev=22.99, samples=184 iops : min= 1, max= 30, avg=13.03, stdev= 5.77, samples=184 write: IOPS=14, BW=56.1KiB/s (57.5kB/s)(5192KiB/92512msec); 0 zone resets slat (usec): min=55, max=6848, avg=316.46, stdev=555.26 clat (msec): min=72, max=1336, avg=776.63, stdev=173.00 lat (msec): min=73, max=1336, avg=776.95, stdev=172.99 clat percentiles (msec): | 1.00th=[ 397], 5.00th=[ 502], 10.00th=[ 558], 20.00th=[ 625], | 30.00th=[ 684], 40.00th=[ 735], 50.00th=[ 776], 60.00th=[ 818], | 70.00th=[ 860], 80.00th=[ 911], 90.00th=[ 1003], 95.00th=[ 1070], | 99.00th=[ 1183], 99.50th=[ 1284], 99.90th=[ 1334], 99.95th=[ 1334], | 99.99th=[ 1334] bw ( KiB/s): min= 7, max= 96, per=24.58%, avg=55.30, stdev=19.73, samples=184 iops : min= 1, max= 24, avg=13.36, stdev= 4.98, samples=184 lat (msec) : 50=0.08%, 100=0.12%, 250=2.81%, 500=46.72%, 750=21.41% lat (msec) : 1000=23.67%, 2000=5.20% cpu : usr=0.08%, sys=0.66%, ctx=4787, 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=145991: Fri Aug 14 21:08:31 2026 read: IOPS=13, BW=53.8KiB/s (55.1kB/s)(4976KiB/92442msec) slat (usec): min=2806, max=54307, avg=12179.05, stdev=6400.79 clat (msec): min=14, max=652, avg=356.52, stdev=82.55 lat (msec): min=21, max=660, avg=368.70, stdev=83.18 clat percentiles (msec): | 1.00th=[ 153], 5.00th=[ 239], 10.00th=[ 266], 20.00th=[ 292], | 30.00th=[ 313], 40.00th=[ 334], 50.00th=[ 351], 60.00th=[ 372], | 70.00th=[ 393], 80.00th=[ 426], 90.00th=[ 464], 95.00th=[ 498], | 99.00th=[ 567], 99.50th=[ 575], 99.90th=[ 651], 99.95th=[ 651], | 99.99th=[ 651] bw ( KiB/s): min= 15, max= 128, per=24.78%, avg=53.53, stdev=23.02, samples=183 iops : min= 3, max= 32, avg=12.92, stdev= 5.82, samples=183 write: IOPS=14, BW=56.9KiB/s (58.3kB/s)(5264KiB/92442msec); 0 zone resets slat (usec): min=59, max=16638, avg=304.09, stdev=772.51 clat (msec): min=236, max=1344, avg=773.52, stdev=171.54 lat (msec): min=237, max=1345, avg=773.83, stdev=171.55 clat percentiles (msec): | 1.00th=[ 368], 5.00th=[ 498], 10.00th=[ 558], 20.00th=[ 634], | 30.00th=[ 684], 40.00th=[ 735], 50.00th=[ 776], 60.00th=[ 810], | 70.00th=[ 860], 80.00th=[ 911], 90.00th=[ 986], 95.00th=[ 1062], | 99.00th=[ 1183], 99.50th=[ 1267], 99.90th=[ 1334], 99.95th=[ 1351], | 99.99th=[ 1351] bw ( KiB/s): min= 8, max= 104, per=24.92%, avg=56.06, stdev=19.22, samples=184 iops : min= 2, max= 26, avg=13.55, stdev= 4.80, samples=184 lat (msec) : 20=0.04%, 50=0.08%, 100=0.23%, 250=3.12%, 500=45.43% lat (msec) : 750=22.66%, 1000=23.95%, 2000=4.49% cpu : usr=0.10%, sys=0.66%, ctx=4811, 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=145992: Fri Aug 14 21:08:31 2026 read: IOPS=13, BW=53.0KiB/s (55.3kB/s)(4984KiB/92307msec) slat (usec): min=74, max=53062, avg=11986.22, stdev=6245.23 clat (msec): min=11, max=777, avg=355.93, stdev=83.32 lat (msec): min=11, max=791, avg=367.92, stdev=84.40 clat percentiles (msec): | 1.00th=[ 70], 5.00th=[ 241], 10.00th=[ 271], 20.00th=[ 292], | 30.00th=[ 313], 40.00th=[ 334], 50.00th=[ 351], 60.00th=[ 372], | 70.00th=[ 397], 80.00th=[ 418], 90.00th=[ 464], 95.00th=[ 498], | 99.00th=[ 567], 99.50th=[ 575], 99.90th=[ 659], 99.95th=[ 776], | 99.99th=[ 776] bw ( KiB/s): min= 7, max= 127, per=24.88%, avg=53.74, stdev=22.85, samples=183 iops : min= 1, max= 31, avg=12.97, stdev= 5.75, samples=183 write: IOPS=14, BW=56.9KiB/s (58.3kB/s)(5256KiB/92307msec); 0 zone resets slat (usec): min=55, max=13895, avg=314.72, stdev=795.48 clat (msec): min=81, max=1339, avg=774.00, stdev=177.86 lat (msec): min=81, max=1339, avg=774.32, stdev=177.86 clat percentiles (msec): | 1.00th=[ 359], 5.00th=[ 498], 10.00th=[ 558], 20.00th=[ 625], | 30.00th=[ 684], 40.00th=[ 735], 50.00th=[ 776], 60.00th=[ 818], | 70.00th=[ 852], 80.00th=[ 911], 90.00th=[ 1003], 95.00th=[ 1083], | 99.00th=[ 1200], 99.50th=[ 1267], 99.90th=[ 1334], 99.95th=[ 1334], | 99.99th=[ 1334] bw ( KiB/s): min= 15, max= 99, per=24.94%, avg=56.13, stdev=19.09, samples=183 iops : min= 3, max= 24, avg=13.57, stdev= 4.82, samples=183 lat (msec) : 20=0.16%, 50=0.20%, 100=0.20%, 250=3.01%, 500=45.59% lat (msec) : 750=21.91%, 1000=23.79%, 2000=5.16% cpu : usr=0.08%, sys=0.69%, ctx=4698, 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=145993: Fri Aug 14 21:08:31 2026 read: IOPS=13, BW=54.7KiB/s (56.0kB/s)(5060KiB/92447msec) slat (usec): min=2472, max=53649, avg=12335.38, stdev=6749.19 clat (msec): min=33, max=689, avg=359.79, stdev=82.81 lat (msec): min=39, max=708, avg=372.13, stdev=83.75 clat percentiles (msec): | 1.00th=[ 178], 5.00th=[ 236], 10.00th=[ 266], 20.00th=[ 296], | 30.00th=[ 317], 40.00th=[ 334], 50.00th=[ 355], 60.00th=[ 376], | 70.00th=[ 397], 80.00th=[ 426], 90.00th=[ 468], 95.00th=[ 498], | 99.00th=[ 567], 99.50th=[ 575], 99.90th=[ 659], 99.95th=[ 693], | 99.99th=[ 693] bw ( KiB/s): min= 7, max= 111, per=25.21%, avg=54.46, stdev=21.58, samples=183 iops : min= 1, max= 27, avg=13.15, stdev= 5.45, samples=183 write: IOPS=14, BW=56.0KiB/s (57.4kB/s)(5180KiB/92447msec); 0 zone resets slat (usec): min=52, max=12141, avg=290.15, stdev=660.43 clat (msec): min=212, max=1337, avg=776.30, stdev=171.24 lat (msec): min=213, max=1337, avg=776.59, stdev=171.21 clat percentiles (msec): | 1.00th=[ 405], 5.00th=[ 510], 10.00th=[ 567], 20.00th=[ 625], | 30.00th=[ 684], 40.00th=[ 735], 50.00th=[ 776], 60.00th=[ 818], | 70.00th=[ 860], 80.00th=[ 919], 90.00th=[ 1003], 95.00th=[ 1062], | 99.00th=[ 1217], 99.50th=[ 1284], 99.90th=[ 1318], 99.95th=[ 1334], | 99.99th=[ 1334] bw ( KiB/s): min= 8, max= 119, per=24.52%, avg=55.16, stdev=18.53, samples=184 iops : min= 2, max= 29, avg=13.33, stdev= 4.62, samples=184 lat (msec) : 50=0.08%, 100=0.27%, 250=3.09%, 500=45.78%, 750=22.27% lat (msec) : 1000=23.32%, 2000=5.20% cpu : usr=0.09%, sys=0.68%, ctx=4594, majf=0, minf=12 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=217KiB/s (222kB/s), 53.8KiB/s-54.7KiB/s (55.1kB/s-56.0kB/s), io=19.6MiB (20.5MB), run=92307-92512msec WRITE: bw=226KiB/s (231kB/s), 56.0KiB/s-56.9KiB/s (57.4kB/s-58.3kB/s), io=20.4MiB (21.4MB), run=92307-92512msec 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=146010: Fri Aug 14 21:08:42 2026 read: IOPS=1, BW=76.3MiB/s (80.0MB/s)(40.0MiB/524msec) slat (nsec): min=23246k, max=23246k, avg=23245962.00, stdev= 0.00 clat (nsec): min=479085k, max=479085k, avg=479085220.00, stdev= 0.00 lat (nsec): min=502335k, max=502335k, avg=502335265.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 481], 5.00th=[ 481], 10.00th=[ 481], 20.00th=[ 481], | 30.00th=[ 481], 40.00th=[ 481], 50.00th=[ 481], 60.00th=[ 481], | 70.00th=[ 481], 80.00th=[ 481], 90.00th=[ 481], 95.00th=[ 481], | 99.00th=[ 481], 99.50th=[ 481], 99.90th=[ 481], 99.95th=[ 481], | 99.99th=[ 481] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.29%, ctx=21, 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=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=76.3MiB/s (80.0MB/s), 76.3MiB/s-76.3MiB/s (80.0MB/s-80.0MB/s), io=40.0MiB (41.9MB), run=524-524msec 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