== sanity test 398c: run fio to test AIO ================= 16:41:17 (1788468077) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.457759 s, 91.6 MB/s osc.lustre-OST0000-osc-ffff8e56987d1800.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=146514: Thu Sep 3 16:44:32 2026 write: IOPS=13, BW=55.1KiB/s (56.4kB/s)(10.0MiB/185904msec); 0 zone resets slat (usec): min=27, max=15031, avg=146.81, stdev=569.01 clat (msec): min=121, max=2528, avg=1161.35, stdev=392.53 lat (msec): min=121, max=2528, avg=1161.49, stdev=392.54 clat percentiles (msec): | 1.00th=[ 218], 5.00th=[ 575], 10.00th=[ 693], 20.00th=[ 827], | 30.00th=[ 927], 40.00th=[ 1020], 50.00th=[ 1133], 60.00th=[ 1250], | 70.00th=[ 1351], 80.00th=[ 1502], 90.00th=[ 1653], 95.00th=[ 1821], | 99.00th=[ 2165], 99.50th=[ 2232], 99.90th=[ 2500], 99.95th=[ 2500], | 99.99th=[ 2534] bw ( KiB/s): min= 7, max= 231, per=25.58%, avg=56.01, stdev=28.37, samples=359 iops : min= 1, max= 57, avg=13.54, stdev= 7.10, samples=359 lat (msec) : 250=1.25%, 500=1.80%, 750=10.04%, 1000=25.08%, 2000=59.57% lat (msec) : >=2000=2.27% cpu : usr=0.04%, sys=0.15%, ctx=1532, 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=146515: Thu Sep 3 16:44:32 2026 write: IOPS=13, BW=54.0KiB/s (56.3kB/s)(10.0MiB/186183msec); 0 zone resets slat (usec): min=22, max=15701, avg=167.59, stdev=649.44 clat (msec): min=188, max=2436, avg=1162.61, stdev=388.40 lat (msec): min=188, max=2436, avg=1162.78, stdev=388.39 clat percentiles (msec): | 1.00th=[ 326], 5.00th=[ 575], 10.00th=[ 701], 20.00th=[ 827], | 30.00th=[ 927], 40.00th=[ 1020], 50.00th=[ 1133], 60.00th=[ 1250], | 70.00th=[ 1351], 80.00th=[ 1485], 90.00th=[ 1687], 95.00th=[ 1871], | 99.00th=[ 2123], 99.50th=[ 2265], 99.90th=[ 2366], 99.95th=[ 2366], | 99.99th=[ 2433] bw ( KiB/s): min= 7, max= 254, per=26.33%, avg=57.67, stdev=31.83, samples=349 iops : min= 1, max= 63, avg=13.96, stdev= 7.99, samples=349 lat (msec) : 250=0.62%, 500=2.30%, 750=9.73%, 1000=24.02%, 2000=61.37% lat (msec) : >=2000=1.95% cpu : usr=0.03%, sys=0.16%, ctx=1658, 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=146516: Thu Sep 3 16:44:32 2026 write: IOPS=13, BW=55.0KiB/s (56.3kB/s)(10.0MiB/186114msec); 0 zone resets slat (usec): min=28, max=15309, avg=176.65, stdev=735.71 clat (msec): min=82, max=2528, avg=1162.31, stdev=389.04 lat (msec): min=82, max=2528, avg=1162.48, stdev=389.00 clat percentiles (msec): | 1.00th=[ 309], 5.00th=[ 567], 10.00th=[ 701], 20.00th=[ 835], | 30.00th=[ 936], 40.00th=[ 1020], 50.00th=[ 1133], 60.00th=[ 1250], | 70.00th=[ 1334], 80.00th=[ 1502], 90.00th=[ 1687], 95.00th=[ 1854], | 99.00th=[ 2056], 99.50th=[ 2165], 99.90th=[ 2500], 99.95th=[ 2500], | 99.99th=[ 2534] bw ( KiB/s): min= 7, max= 191, per=25.44%, avg=55.71, stdev=28.67, samples=361 iops : min= 1, max= 47, avg=13.47, stdev= 7.20, samples=361 lat (msec) : 100=0.08%, 250=0.62%, 500=2.27%, 750=10.20%, 1000=24.53% lat (msec) : 2000=60.31%, >=2000=1.99% cpu : usr=0.04%, sys=0.15%, ctx=1660, 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=146517: Thu Sep 3 16:44:32 2026 write: IOPS=13, BW=55.0KiB/s (56.3kB/s)(10.0MiB/186178msec); 0 zone resets slat (usec): min=28, max=24127, avg=190.19, stdev=918.45 clat (msec): min=145, max=2515, avg=1162.84, stdev=388.91 lat (msec): min=145, max=2515, avg=1163.03, stdev=388.90 clat percentiles (msec): | 1.00th=[ 330], 5.00th=[ 567], 10.00th=[ 709], 20.00th=[ 835], | 30.00th=[ 919], 40.00th=[ 1011], 50.00th=[ 1133], 60.00th=[ 1250], | 70.00th=[ 1368], 80.00th=[ 1502], 90.00th=[ 1687], 95.00th=[ 1838], | 99.00th=[ 2089], 99.50th=[ 2232], 99.90th=[ 2467], 99.95th=[ 2500], | 99.99th=[ 2500] bw ( KiB/s): min= 7, max= 191, per=25.46%, avg=55.75, stdev=30.89, samples=360 iops : min= 1, max= 47, avg=13.48, stdev= 7.74, samples=360 lat (msec) : 250=0.78%, 500=2.15%, 750=9.57%, 1000=25.62%, 2000=59.61% lat (msec) : >=2000=2.27% cpu : usr=0.04%, sys=0.19%, ctx=2103, 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=220KiB/s (225kB/s), 54.0KiB/s-55.1KiB/s (56.3kB/s-56.4kB/s), io=40.0MiB (41.9MB), run=185904-186183msec 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=146555: Thu Sep 3 16:46:25 2026 read: IOPS=12, BW=48.8KiB/s (49.0kB/s)(5048KiB/103446msec) slat (usec): min=33, max=59452, avg=12829.70, stdev=7401.23 clat (msec): min=43, max=1478, avg=393.69, stdev=123.74 lat (msec): min=47, max=1509, avg=406.53, stdev=124.88 clat percentiles (msec): | 1.00th=[ 72], 5.00th=[ 243], 10.00th=[ 275], 20.00th=[ 309], | 30.00th=[ 342], 40.00th=[ 363], 50.00th=[ 384], 60.00th=[ 405], | 70.00th=[ 430], 80.00th=[ 464], 90.00th=[ 523], 95.00th=[ 592], | 99.00th=[ 701], 99.50th=[ 877], 99.90th=[ 1435], 99.95th=[ 1485], | 99.99th=[ 1485] bw ( KiB/s): min= 7, max= 119, per=25.46%, avg=48.63, stdev=22.52, samples=204 iops : min= 1, max= 29, avg=11.73, stdev= 5.68, samples=204 write: IOPS=12, BW=50.2KiB/s (51.4kB/s)(5192KiB/103446msec); 0 zone resets slat (usec): min=32, max=12761, avg=196.53, stdev=684.05 clat (msec): min=170, max=2088, avg=878.36, stdev=232.61 lat (msec): min=170, max=2088, avg=878.56, stdev=232.57 clat percentiles (msec): | 1.00th=[ 300], 5.00th=[ 523], 10.00th=[ 592], 20.00th=[ 693], | 30.00th=[ 768], 40.00th=[ 827], 50.00th=[ 877], 60.00th=[ 919], | 70.00th=[ 986], 80.00th=[ 1045], 90.00th=[ 1150], 95.00th=[ 1267], | 99.00th=[ 1485], 99.50th=[ 1586], 99.90th=[ 2056], 99.95th=[ 2089], | 99.99th=[ 2089] bw ( KiB/s): min= 7, max= 110, per=25.06%, avg=49.86, stdev=20.28, samples=204 iops : min= 1, max= 27, avg=12.04, stdev= 5.08, samples=204 lat (msec) : 50=0.20%, 100=0.47%, 250=2.77%, 500=40.98%, 750=18.67% lat (msec) : 1000=22.93%, 2000=13.91%, >=2000=0.08% cpu : usr=0.09%, sys=0.53%, ctx=4690, 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=146556: Thu Sep 3 16:46:25 2026 read: IOPS=11, BW=47.4KiB/s (48.6kB/s)(4976KiB/104951msec) slat (usec): min=2594, max=46640, avg=13098.89, stdev=7091.51 clat (msec): min=27, max=987, avg=402.06, stdev=110.97 lat (msec): min=36, max=998, avg=415.16, stdev=112.17 clat percentiles (msec): | 1.00th=[ 190], 5.00th=[ 245], 10.00th=[ 275], 20.00th=[ 317], | 30.00th=[ 342], 40.00th=[ 368], 50.00th=[ 393], 60.00th=[ 414], | 70.00th=[ 443], 80.00th=[ 485], 90.00th=[ 550], 95.00th=[ 600], | 99.00th=[ 718], 99.50th=[ 810], 99.90th=[ 944], 99.95th=[ 986], | 99.99th=[ 986] bw ( KiB/s): min= 7, max= 120, per=24.82%, avg=47.41, stdev=22.75, samples=206 iops : min= 1, max= 30, avg=11.43, stdev= 5.71, samples=206 write: IOPS=12, BW=50.2KiB/s (51.4kB/s)(5264KiB/104951msec); 0 zone resets slat (usec): min=31, max=20110, avg=209.39, stdev=817.63 clat (msec): min=268, max=1593, avg=881.03, stdev=213.21 lat (msec): min=268, max=1593, avg=881.24, stdev=213.24 clat percentiles (msec): | 1.00th=[ 405], 5.00th=[ 550], 10.00th=[ 617], 20.00th=[ 709], | 30.00th=[ 768], 40.00th=[ 818], 50.00th=[ 877], 60.00th=[ 919], | 70.00th=[ 978], 80.00th=[ 1053], 90.00th=[ 1150], 95.00th=[ 1267], | 99.00th=[ 1435], 99.50th=[ 1502], 99.90th=[ 1586], 99.95th=[ 1586], | 99.99th=[ 1586] bw ( KiB/s): min= 7, max= 110, per=25.23%, avg=50.20, stdev=19.53, samples=206 iops : min= 1, max= 27, avg=12.13, stdev= 4.88, samples=206 lat (msec) : 50=0.16%, 100=0.12%, 250=2.58%, 500=38.52%, 750=20.94% lat (msec) : 1000=23.55%, 2000=14.14% cpu : usr=0.09%, sys=0.55%, ctx=4384, 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=146557: Thu Sep 3 16:46:25 2026 read: IOPS=11, BW=47.5KiB/s (48.6kB/s)(4984KiB/104954msec) slat (usec): min=2558, max=58203, avg=13257.54, stdev=7503.07 clat (msec): min=15, max=848, avg=403.43, stdev=108.72 lat (msec): min=24, max=871, avg=416.70, stdev=109.66 clat percentiles (msec): | 1.00th=[ 182], 5.00th=[ 255], 10.00th=[ 279], 20.00th=[ 321], | 30.00th=[ 347], 40.00th=[ 368], 50.00th=[ 393], 60.00th=[ 418], | 70.00th=[ 443], 80.00th=[ 485], 90.00th=[ 550], 95.00th=[ 600], | 99.00th=[ 718], 99.50th=[ 735], 99.90th=[ 835], 99.95th=[ 852], | 99.99th=[ 852] bw ( KiB/s): min= 7, max= 104, per=24.69%, avg=47.15, stdev=21.96, samples=207 iops : min= 1, max= 26, avg=11.37, stdev= 5.52, samples=207 write: IOPS=12, BW=50.1KiB/s (51.3kB/s)(5256KiB/104954msec); 0 zone resets slat (usec): min=32, max=15379, avg=181.77, stdev=568.45 clat (msec): min=161, max=1595, avg=880.32, stdev=216.51 lat (msec): min=161, max=1595, avg=880.51, stdev=216.50 clat percentiles (msec): | 1.00th=[ 380], 5.00th=[ 531], 10.00th=[ 609], 20.00th=[ 709], | 30.00th=[ 776], 40.00th=[ 827], 50.00th=[ 869], 60.00th=[ 919], | 70.00th=[ 969], 80.00th=[ 1053], 90.00th=[ 1167], 95.00th=[ 1250], | 99.00th=[ 1452], 99.50th=[ 1502], 99.90th=[ 1552], 99.95th=[ 1603], | 99.99th=[ 1603] bw ( KiB/s): min= 7, max= 95, per=24.88%, avg=49.52, stdev=19.12, samples=207 iops : min= 1, max= 23, avg=11.96, stdev= 4.81, samples=207 lat (msec) : 20=0.04%, 50=0.12%, 100=0.12%, 250=2.15%, 500=39.22% lat (msec) : 750=20.12%, 1000=24.92%, 2000=13.32% cpu : usr=0.09%, sys=0.51%, ctx=4915, 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=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=146558: Thu Sep 3 16:46:25 2026 read: IOPS=12, BW=48.5KiB/s (49.6kB/s)(5060KiB/104363msec) slat (usec): min=2676, max=54735, avg=13098.07, stdev=7434.90 clat (msec): min=11, max=1057, avg=400.65, stdev=111.39 lat (msec): min=18, max=1062, avg=413.75, stdev=112.21 clat percentiles (msec): | 1.00th=[ 209], 5.00th=[ 249], 10.00th=[ 279], 20.00th=[ 313], | 30.00th=[ 342], 40.00th=[ 368], 50.00th=[ 388], 60.00th=[ 414], | 70.00th=[ 439], 80.00th=[ 481], 90.00th=[ 542], 95.00th=[ 600], | 99.00th=[ 743], 99.50th=[ 810], 99.90th=[ 1028], 99.95th=[ 1062], | 99.99th=[ 1062] bw ( KiB/s): min= 7, max= 127, per=25.38%, avg=48.48, stdev=21.40, samples=205 iops : min= 1, max= 31, avg=11.70, stdev= 5.41, samples=205 write: IOPS=12, BW=49.6KiB/s (50.8kB/s)(5180KiB/104363msec); 0 zone resets slat (usec): min=31, max=14989, avg=184.35, stdev=613.44 clat (msec): min=270, max=1678, avg=882.81, stdev=211.44 lat (msec): min=270, max=1678, avg=882.99, stdev=211.42 clat percentiles (msec): | 1.00th=[ 443], 5.00th=[ 567], 10.00th=[ 617], 20.00th=[ 701], | 30.00th=[ 776], 40.00th=[ 827], 50.00th=[ 877], 60.00th=[ 919], | 70.00th=[ 978], 80.00th=[ 1053], 90.00th=[ 1150], 95.00th=[ 1250], | 99.00th=[ 1469], 99.50th=[ 1519], 99.90th=[ 1603], 99.95th=[ 1687], | 99.99th=[ 1687] bw ( KiB/s): min= 7, max= 110, per=24.93%, avg=49.60, stdev=20.15, samples=205 iops : min= 1, max= 27, avg=11.99, stdev= 5.04, samples=205 lat (msec) : 20=0.08%, 50=0.04%, 100=0.08%, 250=2.62%, 500=39.88% lat (msec) : 750=19.61%, 1000=24.18%, 2000=13.52% cpu : usr=0.10%, sys=0.55%, ctx=5019, 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 (196kB/s), 47.4KiB/s-48.8KiB/s (48.6kB/s-49.0kB/s), io=19.6MiB (20.5MB), run=103446-104954msec WRITE: bw=199KiB/s (204kB/s), 49.6KiB/s-50.2KiB/s (50.8kB/s-51.4kB/s), io=20.4MiB (21.4MB), run=103446-104954msec 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=146578: Thu Sep 3 16:46:33 2026 read: IOPS=2, BW=86.2MiB/s (90.4MB/s)(40.0MiB/464msec) slat (nsec): min=19726k, max=19726k, avg=19726437.00, stdev= 0.00 clat (nsec): min=431508k, max=431508k, avg=431507824.00, stdev= 0.00 lat (nsec): min=451238k, max=451238k, avg=451238157.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 430], 5.00th=[ 430], 10.00th=[ 430], 20.00th=[ 430], | 30.00th=[ 430], 40.00th=[ 430], 50.00th=[ 430], 60.00th=[ 430], | 70.00th=[ 430], 80.00th=[ 430], 90.00th=[ 430], 95.00th=[ 430], | 99.00th=[ 430], 99.50th=[ 430], 99.90th=[ 430], 99.95th=[ 430], | 99.99th=[ 430] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=1.94%, 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=86.2MiB/s (90.4MB/s), 86.2MiB/s-86.2MiB/s (90.4MB/s-90.4MB/s), io=40.0MiB (41.9MB), run=464-464msec 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