== sanity test 398c: run fio to test AIO ================= 13:52:50 (1788544370) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.345076 s, 122 MB/s osc.lustre-OST0000-osc-ffff8d48381bd000.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=146471: Fri Sep 4 13:55:29 2026 write: IOPS=16, BW=67.6KiB/s (69.2kB/s)(10.0MiB/151474msec); 0 zone resets slat (usec): min=23, max=21959, avg=248.43, stdev=814.00 clat (msec): min=220, max=2020, avg=945.34, stdev=255.21 lat (msec): min=221, max=2020, avg=945.59, stdev=255.18 clat percentiles (msec): | 1.00th=[ 372], 5.00th=[ 567], 10.00th=[ 667], 20.00th=[ 751], | 30.00th=[ 818], 40.00th=[ 869], 50.00th=[ 927], 60.00th=[ 986], | 70.00th=[ 1053], 80.00th=[ 1150], 90.00th=[ 1267], 95.00th=[ 1385], | 99.00th=[ 1653], 99.50th=[ 1821], 99.90th=[ 2005], 99.95th=[ 2022], | 99.99th=[ 2022] bw ( KiB/s): min= 7, max= 239, per=25.12%, avg=67.81, stdev=29.03, samples=297 iops : min= 1, max= 59, avg=16.46, stdev= 7.30, samples=297 lat (msec) : 250=0.62%, 500=3.55%, 750=15.59%, 1000=42.70%, 2000=37.42% lat (msec) : >=2000=0.12% cpu : usr=0.05%, sys=0.24%, ctx=1732, 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=146472: Fri Sep 4 13:55:29 2026 write: IOPS=16, BW=67.7KiB/s (69.4kB/s)(10.0MiB/151188msec); 0 zone resets slat (usec): min=24, max=12420, avg=281.43, stdev=885.22 clat (msec): min=78, max=2019, avg=944.37, stdev=257.79 lat (msec): min=78, max=2019, avg=944.65, stdev=257.79 clat percentiles (msec): | 1.00th=[ 266], 5.00th=[ 558], 10.00th=[ 659], 20.00th=[ 751], | 30.00th=[ 818], 40.00th=[ 869], 50.00th=[ 927], 60.00th=[ 978], | 70.00th=[ 1053], 80.00th=[ 1133], 90.00th=[ 1267], 95.00th=[ 1401], | 99.00th=[ 1636], 99.50th=[ 1804], 99.90th=[ 1989], 99.95th=[ 2022], | 99.99th=[ 2022] bw ( KiB/s): min= 7, max= 207, per=25.34%, avg=68.40, stdev=28.23, samples=294 iops : min= 1, max= 51, avg=16.61, stdev= 7.09, samples=294 lat (msec) : 100=0.04%, 500=3.83%, 750=15.90%, 1000=43.36%, 2000=36.80% lat (msec) : >=2000=0.08% cpu : usr=0.05%, sys=0.28%, ctx=1939, 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=146473: Fri Sep 4 13:55:29 2026 write: IOPS=16, BW=67.6KiB/s (69.3kB/s)(10.0MiB/151411msec); 0 zone resets slat (usec): min=22, max=18652, avg=261.94, stdev=853.17 clat (msec): min=223, max=1999, avg=945.07, stdev=254.67 lat (msec): min=223, max=1999, avg=945.33, stdev=254.67 clat percentiles (msec): | 1.00th=[ 363], 5.00th=[ 558], 10.00th=[ 667], 20.00th=[ 751], | 30.00th=[ 810], 40.00th=[ 860], 50.00th=[ 927], 60.00th=[ 995], | 70.00th=[ 1062], 80.00th=[ 1133], 90.00th=[ 1267], 95.00th=[ 1385], | 99.00th=[ 1620], 99.50th=[ 1687], 99.90th=[ 1989], 99.95th=[ 1989], | 99.99th=[ 2005] bw ( KiB/s): min= 7, max= 252, per=25.11%, avg=67.80, stdev=31.75, samples=297 iops : min= 1, max= 63, avg=16.46, stdev= 7.97, samples=297 lat (msec) : 250=0.66%, 500=3.71%, 750=15.23%, 1000=41.91%, 2000=38.48% cpu : usr=0.05%, sys=0.26%, ctx=1711, 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=146474: Fri Sep 4 13:55:29 2026 write: IOPS=16, BW=67.8KiB/s (69.5kB/s)(10.0MiB/150974msec); 0 zone resets slat (usec): min=22, max=18793, avg=275.90, stdev=861.82 clat (msec): min=136, max=2005, avg=942.42, stdev=257.15 lat (msec): min=136, max=2005, avg=942.70, stdev=257.13 clat percentiles (msec): | 1.00th=[ 334], 5.00th=[ 567], 10.00th=[ 676], 20.00th=[ 760], | 30.00th=[ 810], 40.00th=[ 869], 50.00th=[ 919], 60.00th=[ 978], | 70.00th=[ 1045], 80.00th=[ 1133], 90.00th=[ 1267], 95.00th=[ 1401], | 99.00th=[ 1653], 99.50th=[ 1905], 99.90th=[ 2005], 99.95th=[ 2005], | 99.99th=[ 2005] bw ( KiB/s): min= 8, max= 192, per=24.94%, avg=67.34, stdev=27.15, samples=299 iops : min= 2, max= 48, avg=16.34, stdev= 6.82, samples=299 lat (msec) : 250=0.51%, 500=3.55%, 750=14.80%, 1000=45.43%, 2000=35.59% lat (msec) : >=2000=0.12% cpu : usr=0.06%, sys=0.28%, ctx=1911, 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=270KiB/s (277kB/s), 67.6KiB/s-67.8KiB/s (69.2kB/s-69.5kB/s), io=40.0MiB (41.9MB), run=150974-151474msec 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=146505: Fri Sep 4 13:57:17 2026 read: IOPS=12, BW=49.3KiB/s (50.5kB/s)(5048KiB/102440msec) slat (msec): min=3, max=450, avg=14.03, stdev=17.98 clat (msec): min=10, max=1019, avg=402.54, stdev=106.34 lat (msec): min=27, max=1032, avg=416.57, stdev=108.17 clat percentiles (msec): | 1.00th=[ 178], 5.00th=[ 264], 10.00th=[ 284], 20.00th=[ 317], | 30.00th=[ 347], 40.00th=[ 372], 50.00th=[ 393], 60.00th=[ 418], | 70.00th=[ 443], 80.00th=[ 481], 90.00th=[ 542], 95.00th=[ 592], | 99.00th=[ 709], 99.50th=[ 751], 99.90th=[ 936], 99.95th=[ 1020], | 99.99th=[ 1020] bw ( KiB/s): min= 7, max= 120, per=25.16%, avg=49.07, stdev=21.50, samples=202 iops : min= 1, max= 30, avg=11.81, stdev= 5.41, samples=202 write: IOPS=12, BW=50.7KiB/s (51.9kB/s)(5192KiB/102440msec); 0 zone resets slat (usec): min=29, max=14690, avg=282.64, stdev=898.20 clat (msec): min=228, max=1883, avg=854.22, stdev=214.75 lat (msec): min=228, max=1883, avg=854.50, stdev=214.86 clat percentiles (msec): | 1.00th=[ 418], 5.00th=[ 527], 10.00th=[ 592], 20.00th=[ 676], | 30.00th=[ 735], 40.00th=[ 793], 50.00th=[ 835], 60.00th=[ 885], | 70.00th=[ 961], 80.00th=[ 1020], 90.00th=[ 1116], 95.00th=[ 1234], | 99.00th=[ 1418], 99.50th=[ 1502], 99.90th=[ 1871], 99.95th=[ 1888], | 99.99th=[ 1888] bw ( KiB/s): min= 6, max= 112, per=24.66%, avg=50.07, stdev=21.09, samples=203 iops : min= 1, max= 28, avg=12.06, stdev= 5.32, samples=203 lat (msec) : 20=0.04%, 50=0.04%, 100=0.31%, 250=1.29%, 500=41.52% lat (msec) : 750=22.23%, 1000=22.85%, 2000=11.72% cpu : usr=0.11%, sys=0.64%, ctx=4320, 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=146506: Fri Sep 4 13:57:17 2026 read: IOPS=12, BW=48.6KiB/s (49.8kB/s)(4976KiB/102306msec) slat (usec): min=36, max=54876, avg=13230.54, stdev=6900.74 clat (msec): min=9, max=822, avg=403.32, stdev=104.48 lat (msec): min=17, max=851, avg=416.55, stdev=105.92 clat percentiles (msec): | 1.00th=[ 140], 5.00th=[ 259], 10.00th=[ 288], 20.00th=[ 321], | 30.00th=[ 351], 40.00th=[ 372], 50.00th=[ 397], 60.00th=[ 418], | 70.00th=[ 447], 80.00th=[ 477], 90.00th=[ 535], 95.00th=[ 584], | 99.00th=[ 709], 99.50th=[ 751], 99.90th=[ 818], 99.95th=[ 827], | 99.99th=[ 827] bw ( KiB/s): min= 7, max= 136, per=24.93%, avg=48.61, stdev=22.12, samples=201 iops : min= 1, max= 34, avg=11.70, stdev= 5.58, samples=201 write: IOPS=12, BW=51.5KiB/s (52.7kB/s)(5264KiB/102306msec); 0 zone resets slat (usec): min=31, max=21239, avg=298.21, stdev=976.03 clat (msec): min=212, max=1585, avg=848.67, stdev=214.66 lat (msec): min=212, max=1586, avg=848.97, stdev=214.74 clat percentiles (msec): | 1.00th=[ 380], 5.00th=[ 514], 10.00th=[ 575], 20.00th=[ 676], | 30.00th=[ 735], 40.00th=[ 793], 50.00th=[ 835], 60.00th=[ 894], | 70.00th=[ 953], 80.00th=[ 1020], 90.00th=[ 1133], 95.00th=[ 1250], | 99.00th=[ 1385], 99.50th=[ 1401], 99.90th=[ 1469], 99.95th=[ 1586], | 99.99th=[ 1586] bw ( KiB/s): min= 7, max= 104, per=25.02%, avg=50.80, stdev=20.51, samples=203 iops : min= 1, max= 26, avg=12.24, stdev= 5.19, samples=203 lat (msec) : 10=0.04%, 20=0.04%, 50=0.08%, 100=0.20%, 250=1.76% lat (msec) : 500=41.13%, 750=21.48%, 1000=23.59%, 2000=11.68% cpu : usr=0.11%, sys=0.62%, ctx=4499, 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=146507: Fri Sep 4 13:57:17 2026 read: IOPS=12, BW=48.6KiB/s (49.8kB/s)(4984KiB/102581msec) slat (msec): min=2, max=395, avg=13.69, stdev=13.02 clat (msec): min=8, max=856, avg=406.94, stdev=106.18 lat (msec): min=16, max=866, avg=420.64, stdev=107.27 clat percentiles (msec): | 1.00th=[ 163], 5.00th=[ 259], 10.00th=[ 288], 20.00th=[ 326], | 30.00th=[ 355], 40.00th=[ 380], 50.00th=[ 401], 60.00th=[ 422], | 70.00th=[ 451], 80.00th=[ 477], 90.00th=[ 527], 95.00th=[ 592], | 99.00th=[ 726], 99.50th=[ 768], 99.90th=[ 852], 99.95th=[ 860], | 99.99th=[ 860] bw ( KiB/s): min= 6, max= 136, per=24.95%, avg=48.65, stdev=21.61, samples=202 iops : min= 1, max= 34, avg=11.70, stdev= 5.45, samples=202 write: IOPS=12, BW=51.2KiB/s (52.5kB/s)(5256KiB/102581msec); 0 zone resets slat (usec): min=32, max=15619, avg=278.00, stdev=834.07 clat (msec): min=114, max=1500, avg=847.49, stdev=219.66 lat (msec): min=114, max=1500, avg=847.78, stdev=219.62 clat percentiles (msec): | 1.00th=[ 275], 5.00th=[ 502], 10.00th=[ 575], 20.00th=[ 676], | 30.00th=[ 735], 40.00th=[ 793], 50.00th=[ 844], 60.00th=[ 894], | 70.00th=[ 961], 80.00th=[ 1028], 90.00th=[ 1133], 95.00th=[ 1234], | 99.00th=[ 1368], 99.50th=[ 1418], 99.90th=[ 1452], 99.95th=[ 1502], | 99.99th=[ 1502] bw ( KiB/s): min= 8, max= 120, per=24.78%, avg=50.30, stdev=20.50, samples=204 iops : min= 2, max= 30, avg=12.11, stdev= 5.16, samples=204 lat (msec) : 10=0.04%, 20=0.04%, 50=0.12%, 100=0.20%, 250=1.95% lat (msec) : 500=41.13%, 750=21.52%, 1000=23.05%, 2000=11.95% cpu : usr=0.10%, sys=0.65%, ctx=4034, 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=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=146508: Fri Sep 4 13:57:17 2026 read: IOPS=12, BW=49.4KiB/s (50.6kB/s)(5060KiB/102372msec) slat (usec): min=3150, max=57882, avg=13284.03, stdev=6933.11 clat (msec): min=16, max=839, avg=406.29, stdev=101.19 lat (msec): min=26, max=852, avg=419.59, stdev=102.56 clat percentiles (msec): | 1.00th=[ 184], 5.00th=[ 271], 10.00th=[ 292], 20.00th=[ 326], | 30.00th=[ 351], 40.00th=[ 376], 50.00th=[ 397], 60.00th=[ 422], | 70.00th=[ 451], 80.00th=[ 481], 90.00th=[ 542], 95.00th=[ 584], | 99.00th=[ 684], 99.50th=[ 718], 99.90th=[ 760], 99.95th=[ 844], | 99.99th=[ 844] bw ( KiB/s): min= 8, max= 104, per=25.52%, avg=49.76, stdev=20.99, samples=200 iops : min= 2, max= 26, avg=11.98, stdev= 5.29, samples=200 write: IOPS=12, BW=50.6KiB/s (51.8kB/s)(5180KiB/102372msec); 0 zone resets slat (usec): min=33, max=15965, avg=384.24, stdev=1205.53 clat (msec): min=322, max=1462, avg=851.61, stdev=209.14 lat (msec): min=322, max=1462, avg=852.00, stdev=209.20 clat percentiles (msec): | 1.00th=[ 401], 5.00th=[ 527], 10.00th=[ 592], 20.00th=[ 667], | 30.00th=[ 735], 40.00th=[ 785], 50.00th=[ 844], 60.00th=[ 902], | 70.00th=[ 961], 80.00th=[ 1020], 90.00th=[ 1133], 95.00th=[ 1234], | 99.00th=[ 1351], 99.50th=[ 1401], 99.90th=[ 1435], 99.95th=[ 1469], | 99.99th=[ 1469] bw ( KiB/s): min= 8, max= 103, per=24.86%, avg=50.46, stdev=20.07, samples=201 iops : min= 2, max= 25, avg=12.15, stdev= 5.04, samples=201 lat (msec) : 20=0.04%, 50=0.08%, 100=0.20%, 250=1.21%, 500=41.68% lat (msec) : 750=23.59%, 1000=21.05%, 2000=12.15% cpu : usr=0.10%, sys=0.64%, ctx=4813, 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=196KiB/s (200kB/s), 48.6KiB/s-49.4KiB/s (49.8kB/s-50.6kB/s), io=19.6MiB (20.5MB), run=102306-102581msec WRITE: bw=204KiB/s (209kB/s), 50.6KiB/s-51.5KiB/s (51.8kB/s-52.7kB/s), io=20.4MiB (21.4MB), run=102306-102581msec 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=146527: Fri Sep 4 13:57:26 2026 read: IOPS=1, BW=70.1MiB/s (73.5MB/s)(40.0MiB/571msec) slat (nsec): min=40277k, max=40277k, avg=40277046.00, stdev= 0.00 clat (nsec): min=498975k, max=498975k, avg=498974747.00, stdev= 0.00 lat (nsec): min=539257k, max=539257k, avg=539256904.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 498], 5.00th=[ 498], 10.00th=[ 498], 20.00th=[ 498], | 30.00th=[ 498], 40.00th=[ 498], 50.00th=[ 498], 60.00th=[ 498], | 70.00th=[ 498], 80.00th=[ 498], 90.00th=[ 498], 95.00th=[ 498], | 99.00th=[ 498], 99.50th=[ 498], 99.90th=[ 498], 99.95th=[ 498], | 99.99th=[ 498] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.28%, 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=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=70.1MiB/s (73.5MB/s), 70.1MiB/s-70.1MiB/s (73.5MB/s-73.5MB/s), io=40.0MiB (41.9MB), run=571-571msec 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