== sanity test 398c: run fio to test AIO ================= 21:38:13 (1789522693) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.4155 s, 101 MB/s osc.lustre-OST0000-osc-ffff8dba25e2d800.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=145549: Tue Sep 15 21:40:57 2026 write: IOPS=16, BW=66.5KiB/s (68.0kB/s)(10.0MiB/154097msec); 0 zone resets slat (usec): min=27, max=21283, avg=284.76, stdev=1154.42 clat (msec): min=87, max=1912, avg=962.43, stdev=282.25 lat (msec): min=88, max=1912, avg=962.72, stdev=282.27 clat percentiles (msec): | 1.00th=[ 305], 5.00th=[ 584], 10.00th=[ 684], 20.00th=[ 751], | 30.00th=[ 810], 40.00th=[ 860], 50.00th=[ 927], 60.00th=[ 1003], | 70.00th=[ 1083], 80.00th=[ 1183], 90.00th=[ 1334], 95.00th=[ 1452], | 99.00th=[ 1787], 99.50th=[ 1821], 99.90th=[ 1905], 99.95th=[ 1905], | 99.99th=[ 1905] bw ( KiB/s): min= 7, max= 208, per=24.84%, avg=65.82, stdev=32.06, samples=306 iops : min= 1, max= 52, avg=16.02, stdev= 8.04, samples=306 lat (msec) : 100=0.04%, 250=0.55%, 500=3.55%, 750=15.27%, 1000=40.82% lat (msec) : 2000=39.77% cpu : usr=0.06%, sys=0.26%, ctx=2358, 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=145550: Tue Sep 15 21:40:57 2026 write: IOPS=16, BW=66.5KiB/s (68.0kB/s)(10.0MiB/154096msec); 0 zone resets slat (usec): min=27, max=23536, avg=258.28, stdev=956.05 clat (msec): min=58, max=1976, avg=962.02, stdev=269.83 lat (msec): min=58, max=1976, avg=962.29, stdev=269.83 clat percentiles (msec): | 1.00th=[ 292], 5.00th=[ 592], 10.00th=[ 684], 20.00th=[ 751], | 30.00th=[ 818], 40.00th=[ 869], 50.00th=[ 927], 60.00th=[ 1003], | 70.00th=[ 1083], 80.00th=[ 1183], 90.00th=[ 1334], 95.00th=[ 1418], | 99.00th=[ 1720], 99.50th=[ 1821], 99.90th=[ 1871], 99.95th=[ 1972], | 99.99th=[ 1972] bw ( KiB/s): min= 7, max= 255, per=24.92%, avg=66.04, stdev=30.34, samples=305 iops : min= 1, max= 63, avg=16.07, stdev= 7.60, samples=305 lat (msec) : 100=0.04%, 250=0.62%, 500=2.97%, 750=15.90%, 1000=40.12% lat (msec) : 2000=40.35% cpu : usr=0.06%, sys=0.24%, ctx=2223, 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=145551: Tue Sep 15 21:40:57 2026 write: IOPS=16, BW=66.5KiB/s (68.0kB/s)(10.0MiB/154099msec); 0 zone resets slat (usec): min=28, max=18789, avg=231.99, stdev=863.51 clat (msec): min=223, max=2021, avg=962.14, stdev=273.47 lat (msec): min=223, max=2021, avg=962.37, stdev=273.49 clat percentiles (msec): | 1.00th=[ 288], 5.00th=[ 592], 10.00th=[ 684], 20.00th=[ 751], | 30.00th=[ 818], 40.00th=[ 869], 50.00th=[ 927], 60.00th=[ 995], | 70.00th=[ 1083], 80.00th=[ 1183], 90.00th=[ 1334], 95.00th=[ 1435], | 99.00th=[ 1754], 99.50th=[ 1854], 99.90th=[ 1955], 99.95th=[ 2022], | 99.99th=[ 2022] bw ( KiB/s): min= 7, max= 255, per=25.09%, avg=66.49, stdev=31.00, samples=303 iops : min= 1, max= 63, avg=16.18, stdev= 7.76, samples=303 lat (msec) : 250=0.62%, 500=3.05%, 750=16.21%, 1000=40.62%, 2000=39.41% lat (msec) : >=2000=0.08% cpu : usr=0.06%, sys=0.21%, ctx=1790, 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=145552: Tue Sep 15 21:40:57 2026 write: IOPS=16, BW=66.5KiB/s (68.0kB/s)(10.0MiB/154093msec); 0 zone resets slat (usec): min=27, max=19834, avg=199.57, stdev=695.47 clat (msec): min=189, max=1958, avg=961.75, stdev=276.07 lat (msec): min=189, max=1958, avg=961.95, stdev=276.07 clat percentiles (msec): | 1.00th=[ 268], 5.00th=[ 575], 10.00th=[ 684], 20.00th=[ 751], | 30.00th=[ 810], 40.00th=[ 860], 50.00th=[ 936], 60.00th=[ 1003], | 70.00th=[ 1083], 80.00th=[ 1183], 90.00th=[ 1334], 95.00th=[ 1435], | 99.00th=[ 1687], 99.50th=[ 1821], 99.90th=[ 1921], 99.95th=[ 1921], | 99.99th=[ 1955] bw ( KiB/s): min= 7, max= 255, per=24.86%, avg=65.88, stdev=30.31, samples=306 iops : min= 1, max= 63, avg=16.03, stdev= 7.60, samples=306 lat (msec) : 250=0.62%, 500=3.24%, 750=15.70%, 1000=40.20%, 2000=40.23% cpu : usr=0.05%, sys=0.22%, ctx=1953, 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=266KiB/s (272kB/s), 66.5KiB/s-66.5KiB/s (68.0kB/s-68.0kB/s), io=40.0MiB (41.9MB), run=154093-154099msec 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=145585: Tue Sep 15 21:42:50 2026 read: IOPS=11, BW=47.0KiB/s (49.1kB/s)(5048KiB/105251msec) slat (usec): min=2614, max=58967, avg=13485.17, stdev=7366.85 clat (msec): min=10, max=804, avg=405.90, stdev=102.83 lat (msec): min=29, max=815, avg=419.39, stdev=103.86 clat percentiles (msec): | 1.00th=[ 207], 5.00th=[ 262], 10.00th=[ 292], 20.00th=[ 326], | 30.00th=[ 347], 40.00th=[ 372], 50.00th=[ 397], 60.00th=[ 426], | 70.00th=[ 447], 80.00th=[ 485], 90.00th=[ 542], 95.00th=[ 584], | 99.00th=[ 709], 99.50th=[ 760], 99.90th=[ 793], 99.95th=[ 802], | 99.99th=[ 802] bw ( KiB/s): min= 6, max= 136, per=25.02%, avg=47.53, stdev=22.31, samples=208 iops : min= 1, max= 34, avg=11.41, stdev= 5.58, samples=208 write: IOPS=12, BW=49.3KiB/s (50.5kB/s)(5192KiB/105251msec); 0 zone resets slat (usec): min=29, max=14231, avg=259.04, stdev=803.34 clat (msec): min=364, max=1762, avg=886.39, stdev=218.45 lat (msec): min=364, max=1762, avg=886.65, stdev=218.45 clat percentiles (msec): | 1.00th=[ 456], 5.00th=[ 584], 10.00th=[ 642], 20.00th=[ 718], | 30.00th=[ 751], 40.00th=[ 802], 50.00th=[ 844], 60.00th=[ 902], | 70.00th=[ 978], 80.00th=[ 1062], 90.00th=[ 1183], 95.00th=[ 1284], | 99.00th=[ 1519], 99.50th=[ 1586], 99.90th=[ 1720], 99.95th=[ 1770], | 99.99th=[ 1770] bw ( KiB/s): min= 7, max= 104, per=24.77%, avg=49.05, stdev=19.99, samples=208 iops : min= 1, max= 26, avg=11.79, stdev= 5.04, samples=208 lat (msec) : 20=0.04%, 50=0.08%, 100=0.16%, 250=1.68%, 500=40.59% lat (msec) : 750=20.62%, 1000=23.32%, 2000=13.52% cpu : usr=0.10%, sys=0.60%, ctx=4816, 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=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=145586: Tue Sep 15 21:42:50 2026 read: IOPS=11, BW=47.3KiB/s (48.4kB/s)(4976KiB/105298msec) slat (usec): min=2984, max=53888, avg=13459.42, stdev=7403.74 clat (msec): min=9, max=838, avg=410.60, stdev=104.80 lat (msec): min=21, max=853, avg=424.06, stdev=106.14 clat percentiles (msec): | 1.00th=[ 186], 5.00th=[ 259], 10.00th=[ 292], 20.00th=[ 330], | 30.00th=[ 359], 40.00th=[ 380], 50.00th=[ 405], 60.00th=[ 426], | 70.00th=[ 456], 80.00th=[ 489], 90.00th=[ 542], 95.00th=[ 592], | 99.00th=[ 709], 99.50th=[ 735], 99.90th=[ 802], 99.95th=[ 844], | 99.99th=[ 844] bw ( KiB/s): min= 7, max= 103, per=24.78%, avg=47.08, stdev=21.14, samples=207 iops : min= 1, max= 25, avg=11.29, stdev= 5.27, samples=207 write: IOPS=12, BW=49.0KiB/s (51.2kB/s)(5264KiB/105298msec); 0 zone resets slat (usec): min=33, max=13243, avg=248.36, stdev=758.66 clat (msec): min=355, max=1717, avg=876.83, stdev=224.03 lat (msec): min=355, max=1717, avg=877.08, stdev=224.03 clat percentiles (msec): | 1.00th=[ 439], 5.00th=[ 567], 10.00th=[ 625], 20.00th=[ 701], | 30.00th=[ 743], 40.00th=[ 802], 50.00th=[ 844], 60.00th=[ 894], | 70.00th=[ 969], 80.00th=[ 1053], 90.00th=[ 1167], 95.00th=[ 1267], | 99.00th=[ 1569], 99.50th=[ 1636], 99.90th=[ 1703], 99.95th=[ 1720], | 99.99th=[ 1720] bw ( KiB/s): min= 7, max= 103, per=24.98%, avg=49.45, stdev=18.70, samples=209 iops : min= 1, max= 25, avg=11.89, stdev= 4.72, samples=209 lat (msec) : 10=0.04%, 20=0.08%, 50=0.04%, 100=0.12%, 250=1.68% lat (msec) : 500=39.92%, 750=22.70%, 1000=22.19%, 2000=13.24% cpu : usr=0.10%, sys=0.61%, ctx=4834, 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=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=145587: Tue Sep 15 21:42:50 2026 read: IOPS=11, BW=47.3KiB/s (48.5kB/s)(4984KiB/105306msec) slat (usec): min=2777, max=49971, avg=13451.57, stdev=7127.69 clat (msec): min=27, max=803, avg=405.44, stdev=105.26 lat (msec): min=34, max=815, avg=418.90, stdev=106.64 clat percentiles (msec): | 1.00th=[ 133], 5.00th=[ 266], 10.00th=[ 288], 20.00th=[ 321], | 30.00th=[ 351], 40.00th=[ 372], 50.00th=[ 397], 60.00th=[ 418], | 70.00th=[ 447], 80.00th=[ 485], 90.00th=[ 542], 95.00th=[ 592], | 99.00th=[ 718], 99.50th=[ 726], 99.90th=[ 751], 99.95th=[ 802], | 99.99th=[ 802] bw ( KiB/s): min= 7, max= 120, per=24.80%, avg=47.12, stdev=23.54, samples=208 iops : min= 1, max= 30, avg=11.31, stdev= 5.89, samples=208 write: IOPS=12, BW=49.9KiB/s (51.1kB/s)(5256KiB/105306msec); 0 zone resets slat (usec): min=31, max=14366, avg=271.28, stdev=839.93 clat (msec): min=334, max=1729, avg=881.75, stdev=219.73 lat (msec): min=334, max=1729, avg=882.02, stdev=219.72 clat percentiles (msec): | 1.00th=[ 443], 5.00th=[ 575], 10.00th=[ 642], 20.00th=[ 709], | 30.00th=[ 751], 40.00th=[ 802], 50.00th=[ 852], 60.00th=[ 911], | 70.00th=[ 969], 80.00th=[ 1062], 90.00th=[ 1167], 95.00th=[ 1267], | 99.00th=[ 1502], 99.50th=[ 1636], 99.90th=[ 1687], 99.95th=[ 1737], | 99.99th=[ 1737] bw ( KiB/s): min= 7, max= 103, per=24.85%, avg=49.20, stdev=20.19, samples=209 iops : min= 1, max= 25, avg=11.83, stdev= 5.07, samples=209 lat (msec) : 50=0.12%, 100=0.23%, 250=1.45%, 500=39.69%, 750=22.27% lat (msec) : 1000=22.54%, 2000=13.71% cpu : usr=0.10%, sys=0.60%, ctx=4820, 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=145588: Tue Sep 15 21:42:50 2026 read: IOPS=12, BW=48.4KiB/s (49.5kB/s)(5060KiB/104570msec) slat (usec): min=40, max=50856, avg=13373.19, stdev=7341.82 clat (msec): min=15, max=791, avg=405.40, stdev=105.55 lat (msec): min=19, max=815, avg=418.78, stdev=107.01 clat percentiles (msec): | 1.00th=[ 79], 5.00th=[ 259], 10.00th=[ 292], 20.00th=[ 326], | 30.00th=[ 355], 40.00th=[ 376], 50.00th=[ 397], 60.00th=[ 418], | 70.00th=[ 456], 80.00th=[ 481], 90.00th=[ 542], 95.00th=[ 584], | 99.00th=[ 709], 99.50th=[ 743], 99.90th=[ 785], 99.95th=[ 793], | 99.99th=[ 793] bw ( KiB/s): min= 7, max= 102, per=25.24%, avg=47.95, stdev=20.60, samples=207 iops : min= 1, max= 25, avg=11.52, stdev= 5.15, samples=207 write: IOPS=12, BW=49.5KiB/s (50.7kB/s)(5180KiB/104570msec); 0 zone resets slat (usec): min=30, max=10588, avg=254.48, stdev=737.97 clat (msec): min=134, max=1763, avg=881.83, stdev=227.03 lat (msec): min=137, max=1763, avg=882.09, stdev=227.02 clat percentiles (msec): | 1.00th=[ 393], 5.00th=[ 575], 10.00th=[ 642], 20.00th=[ 709], | 30.00th=[ 751], 40.00th=[ 802], 50.00th=[ 844], 60.00th=[ 894], | 70.00th=[ 978], 80.00th=[ 1062], 90.00th=[ 1183], 95.00th=[ 1284], | 99.00th=[ 1552], 99.50th=[ 1653], 99.90th=[ 1754], 99.95th=[ 1770], | 99.99th=[ 1770] bw ( KiB/s): min= 7, max= 96, per=24.87%, avg=49.24, stdev=18.17, samples=206 iops : min= 1, max= 24, avg=11.84, stdev= 4.58, samples=206 lat (msec) : 20=0.04%, 50=0.35%, 100=0.20%, 250=1.56%, 500=40.47% lat (msec) : 750=21.29%, 1000=22.42%, 2000=13.67% cpu : usr=0.11%, sys=0.58%, ctx=4725, 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=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=191KiB/s (195kB/s), 47.3KiB/s-48.4KiB/s (48.4kB/s-49.5kB/s), io=19.6MiB (20.5MB), run=104570-105306msec WRITE: bw=198KiB/s (203kB/s), 49.3KiB/s-49.0KiB/s (50.5kB/s-51.2kB/s), io=20.4MiB (21.4MB), run=104570-105306msec 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=145607: Tue Sep 15 21:43:00 2026 read: IOPS=2, BW=90.9MiB/s (95.3MB/s)(40.0MiB/440msec) slat (nsec): min=36983k, max=36983k, avg=36982818.00, stdev= 0.00 clat (nsec): min=382663k, max=382663k, avg=382662936.00, stdev= 0.00 lat (nsec): min=419649k, max=419649k, avg=419649227.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 384], 5.00th=[ 384], 10.00th=[ 384], 20.00th=[ 384], | 30.00th=[ 384], 40.00th=[ 384], 50.00th=[ 384], 60.00th=[ 384], | 70.00th=[ 384], 80.00th=[ 384], 90.00th=[ 384], 95.00th=[ 384], | 99.00th=[ 384], 99.50th=[ 384], 99.90th=[ 384], 99.95th=[ 384], | 99.99th=[ 384] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.51%, ctx=8, 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=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=90.9MiB/s (95.3MB/s), 90.9MiB/s-90.9MiB/s (95.3MB/s-95.3MB/s), io=40.0MiB (41.9MB), run=440-440msec 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