== sanity test 398c: run fio to test AIO ================= 07:59:45 (1789127985) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.240492 s, 174 MB/s osc.lustre-OST0000-osc-ffff8d886b797000.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=146572: Fri Sep 11 08:02:55 2026 write: IOPS=14, BW=57.2KiB/s (58.6kB/s)(10.0MiB/179057msec); 0 zone resets slat (usec): min=29, max=27721, avg=279.32, stdev=1176.65 clat (msec): min=139, max=1988, avg=1117.89, stdev=269.00 lat (msec): min=139, max=1989, avg=1118.17, stdev=269.02 clat percentiles (msec): | 1.00th=[ 388], 5.00th=[ 667], 10.00th=[ 810], 20.00th=[ 927], | 30.00th=[ 995], 40.00th=[ 1062], 50.00th=[ 1116], 60.00th=[ 1167], | 70.00th=[ 1250], 80.00th=[ 1334], 90.00th=[ 1452], 95.00th=[ 1569], | 99.00th=[ 1720], 99.50th=[ 1770], 99.90th=[ 1938], 99.95th=[ 1938], | 99.99th=[ 1989] bw ( KiB/s): min= 7, max= 168, per=24.98%, avg=56.95, stdev=30.39, samples=353 iops : min= 1, max= 42, avg=13.75, stdev= 7.61, samples=353 lat (msec) : 250=0.43%, 500=2.23%, 750=4.73%, 1000=22.97%, 2000=69.65% cpu : usr=0.04%, sys=0.25%, ctx=1880, 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=146573: Fri Sep 11 08:02:55 2026 write: IOPS=14, BW=57.3KiB/s (58.6kB/s)(10.0MiB/178843msec); 0 zone resets slat (usec): min=29, max=32610, avg=292.24, stdev=1247.38 clat (msec): min=242, max=1930, avg=1117.11, stdev=277.64 lat (msec): min=242, max=1930, avg=1117.41, stdev=277.67 clat percentiles (msec): | 1.00th=[ 405], 5.00th=[ 642], 10.00th=[ 793], 20.00th=[ 919], | 30.00th=[ 986], 40.00th=[ 1053], 50.00th=[ 1116], 60.00th=[ 1167], | 70.00th=[ 1250], 80.00th=[ 1351], 90.00th=[ 1485], 95.00th=[ 1569], | 99.00th=[ 1720], 99.50th=[ 1787], 99.90th=[ 1854], 99.95th=[ 1938], | 99.99th=[ 1938] bw ( KiB/s): min= 7, max= 128, per=26.02%, avg=59.33, stdev=29.20, samples=339 iops : min= 1, max= 32, avg=14.35, stdev= 7.36, samples=339 lat (msec) : 250=0.59%, 500=2.23%, 750=5.70%, 1000=22.66%, 2000=68.83% cpu : usr=0.04%, sys=0.24%, ctx=1861, 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=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=146574: Fri Sep 11 08:02:55 2026 write: IOPS=14, BW=57.3KiB/s (58.6kB/s)(10.0MiB/178838msec); 0 zone resets slat (usec): min=29, max=23372, avg=251.12, stdev=950.65 clat (msec): min=366, max=1844, avg=1116.54, stdev=265.91 lat (msec): min=366, max=1844, avg=1116.79, stdev=265.92 clat percentiles (msec): | 1.00th=[ 435], 5.00th=[ 651], 10.00th=[ 810], 20.00th=[ 919], | 30.00th=[ 995], 40.00th=[ 1053], 50.00th=[ 1116], 60.00th=[ 1167], | 70.00th=[ 1234], 80.00th=[ 1334], 90.00th=[ 1469], 95.00th=[ 1569], | 99.00th=[ 1720], 99.50th=[ 1770], 99.90th=[ 1804], 99.95th=[ 1804], | 99.99th=[ 1838] bw ( KiB/s): min= 7, max= 256, per=25.34%, avg=57.78, stdev=26.85, samples=348 iops : min= 1, max= 64, avg=13.96, stdev= 6.76, samples=348 lat (msec) : 500=2.50%, 750=4.92%, 1000=23.16%, 2000=69.41% cpu : usr=0.04%, sys=0.23%, ctx=1825, 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=146575: Fri Sep 11 08:02:55 2026 write: IOPS=14, BW=57.2KiB/s (58.6kB/s)(10.0MiB/179044msec); 0 zone resets slat (usec): min=29, max=17367, avg=233.90, stdev=895.62 clat (msec): min=291, max=1850, avg=1117.82, stdev=272.20 lat (msec): min=291, max=1850, avg=1118.05, stdev=272.21 clat percentiles (msec): | 1.00th=[ 376], 5.00th=[ 659], 10.00th=[ 785], 20.00th=[ 919], | 30.00th=[ 1003], 40.00th=[ 1062], 50.00th=[ 1116], 60.00th=[ 1167], | 70.00th=[ 1250], 80.00th=[ 1334], 90.00th=[ 1485], 95.00th=[ 1569], | 99.00th=[ 1737], 99.50th=[ 1770], 99.90th=[ 1838], 99.95th=[ 1854], | 99.99th=[ 1854] bw ( KiB/s): min= 7, max= 256, per=26.50%, avg=60.42, stdev=33.29, samples=333 iops : min= 1, max= 64, avg=14.62, stdev= 8.34, samples=333 lat (msec) : 500=2.70%, 750=5.16%, 1000=22.23%, 2000=69.92% cpu : usr=0.04%, sys=0.21%, ctx=1641, 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=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=229KiB/s (234kB/s), 57.2KiB/s-57.3KiB/s (58.6kB/s-58.6kB/s), io=40.0MiB (41.9MB), run=178838-179057msec 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=146621: Fri Sep 11 08:05:05 2026 read: IOPS=10, BW=41.3KiB/s (42.3kB/s)(5048KiB/122318msec) slat (usec): min=3268, max=52830, avg=15345.67, stdev=7995.58 clat (msec): min=14, max=927, avg=475.06, stdev=117.95 lat (msec): min=26, max=962, avg=490.41, stdev=118.79 clat percentiles (msec): | 1.00th=[ 262], 5.00th=[ 305], 10.00th=[ 338], 20.00th=[ 376], | 30.00th=[ 414], 40.00th=[ 443], 50.00th=[ 464], 60.00th=[ 493], | 70.00th=[ 527], 80.00th=[ 567], 90.00th=[ 625], 95.00th=[ 676], | 99.00th=[ 860], 99.50th=[ 877], 99.90th=[ 911], 99.95th=[ 927], | 99.99th=[ 927] bw ( KiB/s): min= 7, max= 136, per=25.39%, avg=41.38, stdev=21.01, samples=239 iops : min= 1, max= 34, avg= 9.83, stdev= 5.28, samples=239 write: IOPS=10, BW=42.4KiB/s (43.5kB/s)(5192KiB/122318msec); 0 zone resets slat (usec): min=36, max=18552, avg=272.81, stdev=947.53 clat (msec): min=374, max=1840, avg=1027.98, stdev=268.43 lat (msec): min=374, max=1841, avg=1028.26, stdev=268.42 clat percentiles (msec): | 1.00th=[ 514], 5.00th=[ 625], 10.00th=[ 701], 20.00th=[ 785], | 30.00th=[ 869], 40.00th=[ 927], 50.00th=[ 1003], 60.00th=[ 1083], | 70.00th=[ 1150], 80.00th=[ 1250], 90.00th=[ 1401], 95.00th=[ 1519], | 99.00th=[ 1703], 99.50th=[ 1787], 99.90th=[ 1838], 99.95th=[ 1838], | 99.99th=[ 1838] bw ( KiB/s): min= 7, max= 96, per=24.85%, avg=42.24, stdev=19.74, samples=240 iops : min= 1, max= 24, avg=10.05, stdev= 4.98, samples=240 lat (msec) : 20=0.04%, 50=0.04%, 100=0.08%, 250=0.20%, 500=31.17% lat (msec) : 750=24.53%, 1000=18.28%, 2000=25.66% cpu : usr=0.10%, sys=0.55%, ctx=4562, 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=146622: Fri Sep 11 08:05:06 2026 read: IOPS=10, BW=40.6KiB/s (41.6kB/s)(4976KiB/122596msec) slat (usec): min=2893, max=57538, avg=15518.72, stdev=8412.64 clat (msec): min=34, max=946, avg=472.87, stdev=117.48 lat (msec): min=43, max=977, avg=488.40, stdev=118.74 clat percentiles (msec): | 1.00th=[ 245], 5.00th=[ 309], 10.00th=[ 338], 20.00th=[ 380], | 30.00th=[ 414], 40.00th=[ 439], 50.00th=[ 464], 60.00th=[ 493], | 70.00th=[ 523], 80.00th=[ 558], 90.00th=[ 617], 95.00th=[ 676], | 99.00th=[ 844], 99.50th=[ 885], 99.90th=[ 944], 99.95th=[ 944], | 99.99th=[ 944] bw ( KiB/s): min= 7, max= 111, per=24.73%, avg=40.31, stdev=19.52, samples=241 iops : min= 1, max= 27, avg= 9.56, stdev= 4.94, samples=241 write: IOPS=10, BW=42.9KiB/s (43.0kB/s)(5264KiB/122596msec); 0 zone resets slat (usec): min=32, max=21534, avg=272.36, stdev=975.75 clat (msec): min=379, max=1848, avg=1026.24, stdev=269.90 lat (msec): min=379, max=1848, avg=1026.52, stdev=269.95 clat percentiles (msec): | 1.00th=[ 502], 5.00th=[ 634], 10.00th=[ 701], 20.00th=[ 785], | 30.00th=[ 869], 40.00th=[ 936], 50.00th=[ 1011], 60.00th=[ 1083], | 70.00th=[ 1150], 80.00th=[ 1267], 90.00th=[ 1401], 95.00th=[ 1519], | 99.00th=[ 1687], 99.50th=[ 1737], 99.90th=[ 1787], 99.95th=[ 1854], | 99.99th=[ 1854] bw ( KiB/s): min= 7, max= 111, per=25.06%, avg=42.61, stdev=18.76, samples=242 iops : min= 1, max= 27, avg=10.14, stdev= 4.72, samples=242 lat (msec) : 50=0.08%, 100=0.16%, 250=0.31%, 500=30.27%, 750=24.88% lat (msec) : 1000=18.20%, 2000=26.09% cpu : usr=0.10%, sys=0.56%, ctx=4679, 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=146623: Fri Sep 11 08:05:06 2026 read: IOPS=10, BW=40.6KiB/s (41.6kB/s)(4984KiB/122653msec) slat (usec): min=2633, max=68636, avg=15513.60, stdev=8273.26 clat (msec): min=16, max=946, avg=477.91, stdev=120.45 lat (msec): min=24, max=975, avg=493.43, stdev=121.26 clat percentiles (msec): | 1.00th=[ 197], 5.00th=[ 309], 10.00th=[ 338], 20.00th=[ 380], | 30.00th=[ 418], 40.00th=[ 443], 50.00th=[ 468], 60.00th=[ 493], | 70.00th=[ 527], 80.00th=[ 567], 90.00th=[ 625], 95.00th=[ 684], | 99.00th=[ 802], 99.50th=[ 877], 99.90th=[ 927], 99.95th=[ 944], | 99.99th=[ 944] bw ( KiB/s): min= 7, max= 119, per=25.02%, avg=40.78, stdev=20.44, samples=240 iops : min= 1, max= 29, avg= 9.69, stdev= 5.15, samples=240 write: IOPS=10, BW=42.9KiB/s (43.9kB/s)(5256KiB/122653msec); 0 zone resets slat (usec): min=33, max=24351, avg=281.32, stdev=1141.33 clat (msec): min=139, max=1861, avg=1022.62, stdev=278.74 lat (msec): min=139, max=1861, avg=1022.90, stdev=278.73 clat percentiles (msec): | 1.00th=[ 393], 5.00th=[ 609], 10.00th=[ 693], 20.00th=[ 785], | 30.00th=[ 869], 40.00th=[ 936], 50.00th=[ 995], 60.00th=[ 1083], | 70.00th=[ 1150], 80.00th=[ 1267], 90.00th=[ 1401], 95.00th=[ 1502], | 99.00th=[ 1653], 99.50th=[ 1703], 99.90th=[ 1854], 99.95th=[ 1854], | 99.99th=[ 1854] bw ( KiB/s): min= 7, max= 95, per=24.89%, avg=42.31, stdev=18.05, samples=242 iops : min= 1, max= 23, avg=10.07, stdev= 4.54, samples=242 lat (msec) : 20=0.04%, 50=0.04%, 100=0.16%, 250=0.82%, 500=29.45% lat (msec) : 750=25.20%, 1000=18.79%, 2000=25.51% cpu : usr=0.09%, sys=0.54%, ctx=4011, 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=146624: Fri Sep 11 08:05:06 2026 read: IOPS=10, BW=41.5KiB/s (42.5kB/s)(5060KiB/121932msec) slat (usec): min=55, max=77682, avg=15395.42, stdev=8382.64 clat (msec): min=14, max=1093, avg=475.13, stdev=126.29 lat (msec): min=29, max=1099, avg=490.53, stdev=127.62 clat percentiles (msec): | 1.00th=[ 120], 5.00th=[ 305], 10.00th=[ 342], 20.00th=[ 376], | 30.00th=[ 409], 40.00th=[ 439], 50.00th=[ 464], 60.00th=[ 493], | 70.00th=[ 527], 80.00th=[ 567], 90.00th=[ 625], 95.00th=[ 693], | 99.00th=[ 877], 99.50th=[ 936], 99.90th=[ 961], 99.95th=[ 1099], | 99.99th=[ 1099] bw ( KiB/s): min= 7, max= 104, per=25.80%, avg=42.06, stdev=18.89, samples=236 iops : min= 1, max= 26, avg=10.01, stdev= 4.76, samples=236 write: IOPS=10, BW=42.5KiB/s (43.5kB/s)(5180KiB/121932msec); 0 zone resets slat (usec): min=27, max=13479, avg=249.68, stdev=683.31 clat (msec): min=172, max=1939, avg=1025.98, stdev=278.32 lat (msec): min=172, max=1939, avg=1026.24, stdev=278.30 clat percentiles (msec): | 1.00th=[ 485], 5.00th=[ 617], 10.00th=[ 693], 20.00th=[ 785], | 30.00th=[ 869], 40.00th=[ 936], 50.00th=[ 1011], 60.00th=[ 1083], | 70.00th=[ 1150], 80.00th=[ 1250], 90.00th=[ 1418], 95.00th=[ 1536], | 99.00th=[ 1720], 99.50th=[ 1838], 99.90th=[ 1921], 99.95th=[ 1938], | 99.99th=[ 1938] bw ( KiB/s): min= 7, max= 95, per=25.09%, avg=42.65, stdev=18.91, samples=237 iops : min= 1, max= 23, avg=10.16, stdev= 4.76, samples=237 lat (msec) : 20=0.08%, 50=0.08%, 100=0.27%, 250=0.47%, 500=30.47% lat (msec) : 750=24.84%, 1000=17.77%, 2000=26.02% cpu : usr=0.09%, sys=0.54%, ctx=4397, 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=164KiB/s (168kB/s), 40.6KiB/s-41.5KiB/s (41.6kB/s-42.5kB/s), io=19.6MiB (20.5MB), run=121932-122653msec WRITE: bw=170KiB/s (174kB/s), 42.4KiB/s-42.9KiB/s (43.5kB/s-43.0kB/s), io=20.4MiB (21.4MB), run=121932-122653msec 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=146646: Fri Sep 11 08:05:16 2026 read: IOPS=2, BW=83.9MiB/s (87.9MB/s)(40.0MiB/477msec) slat (nsec): min=38035k, max=38035k, avg=38035169.00, stdev= 0.00 clat (nsec): min=418894k, max=418894k, avg=418893662.00, stdev= 0.00 lat (nsec): min=456934k, max=456934k, avg=456933727.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 418], 5.00th=[ 418], 10.00th=[ 418], 20.00th=[ 418], | 30.00th=[ 418], 40.00th=[ 418], 50.00th=[ 418], 60.00th=[ 418], | 70.00th=[ 418], 80.00th=[ 418], 90.00th=[ 418], 95.00th=[ 418], | 99.00th=[ 418], 99.50th=[ 418], 99.90th=[ 418], 99.95th=[ 418], | 99.99th=[ 418] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.94%, ctx=5, majf=0, minf=9 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=83.9MiB/s (87.9MB/s), 83.9MiB/s-83.9MiB/s (87.9MB/s-87.9MB/s), io=40.0MiB (41.9MB), run=477-477msec 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