== sanity test 398c: run fio to test AIO ================= 09:37:42 (1786714662) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.451068 s, 93.0 MB/s osc.lustre-OST0000-osc-ffff9b3dc5642800.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=145280: Fri Aug 14 09:40:43 2026 write: IOPS=14, BW=59.7KiB/s (61.1kB/s)(10.0MiB/171556msec); 0 zone resets slat (usec): min=37, max=17515, avg=354.53, stdev=1015.03 clat (msec): min=370, max=2173, avg=1071.36, stdev=262.87 lat (msec): min=371, max=2173, avg=1071.72, stdev=262.87 clat percentiles (msec): | 1.00th=[ 472], 5.00th=[ 709], 10.00th=[ 768], 20.00th=[ 860], | 30.00th=[ 927], 40.00th=[ 986], 50.00th=[ 1045], 60.00th=[ 1116], | 70.00th=[ 1167], 80.00th=[ 1250], 90.00th=[ 1385], 95.00th=[ 1536], | 99.00th=[ 1905], 99.50th=[ 2089], 99.90th=[ 2165], 99.95th=[ 2165], | 99.99th=[ 2165] bw ( KiB/s): min= 7, max= 128, per=25.45%, avg=60.57, stdev=27.90, samples=332 iops : min= 1, max= 32, avg=14.64, stdev= 7.00, samples=332 lat (msec) : 500=1.29%, 750=7.23%, 1000=34.57%, 2000=56.09%, >=2000=0.82% cpu : usr=0.05%, sys=0.31%, ctx=1973, 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=145281: Fri Aug 14 09:40:43 2026 write: IOPS=14, BW=59.8KiB/s (61.3kB/s)(10.0MiB/171154msec); 0 zone resets slat (usec): min=41, max=14046, avg=379.23, stdev=966.85 clat (msec): min=135, max=2272, avg=1068.82, stdev=271.89 lat (msec): min=135, max=2273, avg=1069.20, stdev=271.90 clat percentiles (msec): | 1.00th=[ 472], 5.00th=[ 693], 10.00th=[ 776], 20.00th=[ 860], | 30.00th=[ 911], 40.00th=[ 978], 50.00th=[ 1053], 60.00th=[ 1099], | 70.00th=[ 1167], 80.00th=[ 1267], 90.00th=[ 1385], 95.00th=[ 1569], | 99.00th=[ 1905], 99.50th=[ 2056], 99.90th=[ 2165], 99.95th=[ 2165], | 99.99th=[ 2265] bw ( KiB/s): min= 7, max= 143, per=25.84%, avg=61.49, stdev=31.88, samples=327 iops : min= 1, max= 35, avg=14.86, stdev= 8.00, samples=327 lat (msec) : 250=0.70%, 500=0.62%, 750=6.37%, 1000=35.08%, 2000=56.64% lat (msec) : >=2000=0.59% cpu : usr=0.05%, sys=0.30%, ctx=1960, 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=145282: Fri Aug 14 09:40:43 2026 write: IOPS=14, BW=59.8KiB/s (61.2kB/s)(10.0MiB/171288msec); 0 zone resets slat (usec): min=39, max=13983, avg=388.21, stdev=993.32 clat (msec): min=318, max=2192, avg=1069.75, stdev=269.33 lat (msec): min=319, max=2192, avg=1070.14, stdev=269.33 clat percentiles (msec): | 1.00th=[ 451], 5.00th=[ 701], 10.00th=[ 768], 20.00th=[ 860], | 30.00th=[ 919], 40.00th=[ 986], 50.00th=[ 1053], 60.00th=[ 1099], | 70.00th=[ 1167], 80.00th=[ 1250], 90.00th=[ 1401], 95.00th=[ 1569], | 99.00th=[ 1905], 99.50th=[ 1972], 99.90th=[ 2123], 99.95th=[ 2165], | 99.99th=[ 2198] bw ( KiB/s): min= 7, max= 128, per=26.00%, avg=61.87, stdev=30.31, samples=325 iops : min= 1, max= 32, avg=14.96, stdev= 7.58, samples=325 lat (msec) : 500=1.25%, 750=7.07%, 1000=34.18%, 2000=57.19%, >=2000=0.31% cpu : usr=0.05%, sys=0.32%, ctx=1946, 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=145283: Fri Aug 14 09:40:43 2026 write: IOPS=14, BW=59.7KiB/s (61.1kB/s)(10.0MiB/171552msec); 0 zone resets slat (usec): min=37, max=23012, avg=347.83, stdev=957.95 clat (msec): min=176, max=2193, avg=1071.54, stdev=258.71 lat (msec): min=177, max=2194, avg=1071.89, stdev=258.70 clat percentiles (msec): | 1.00th=[ 542], 5.00th=[ 701], 10.00th=[ 776], 20.00th=[ 860], | 30.00th=[ 936], 40.00th=[ 995], 50.00th=[ 1053], 60.00th=[ 1116], | 70.00th=[ 1167], 80.00th=[ 1250], 90.00th=[ 1385], 95.00th=[ 1502], | 99.00th=[ 1955], 99.50th=[ 2039], 99.90th=[ 2123], 99.95th=[ 2165], | 99.99th=[ 2198] bw ( KiB/s): min= 7, max= 128, per=25.06%, avg=59.65, stdev=27.79, samples=337 iops : min= 1, max= 32, avg=14.41, stdev= 6.95, samples=337 lat (msec) : 250=0.04%, 500=0.90%, 750=7.03%, 1000=33.12%, 2000=58.24% lat (msec) : >=2000=0.66% cpu : usr=0.06%, sys=0.32%, ctx=2004, 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=239KiB/s (244kB/s), 59.7KiB/s-59.8KiB/s (61.1kB/s-61.3kB/s), io=40.0MiB (41.9MB), run=171154-171556msec 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=145319: Fri Aug 14 09:42:47 2026 read: IOPS=11, BW=44.4KiB/s (45.5kB/s)(5048KiB/113633msec) slat (usec): min=3484, max=84163, avg=16419.96, stdev=9085.78 clat (msec): min=15, max=927, avg=436.58, stdev=111.37 lat (msec): min=33, max=941, avg=453.01, stdev=112.47 clat percentiles (msec): | 1.00th=[ 190], 5.00th=[ 279], 10.00th=[ 313], 20.00th=[ 351], | 30.00th=[ 380], 40.00th=[ 401], 50.00th=[ 430], 60.00th=[ 451], | 70.00th=[ 481], 80.00th=[ 518], 90.00th=[ 584], 95.00th=[ 634], | 99.00th=[ 760], 99.50th=[ 793], 99.90th=[ 927], 99.95th=[ 927], | 99.99th=[ 927] bw ( KiB/s): min= 7, max= 127, per=24.92%, avg=43.85, stdev=22.02, samples=225 iops : min= 1, max= 31, avg=10.43, stdev= 5.50, samples=225 write: IOPS=11, BW=45.7KiB/s (46.8kB/s)(5192KiB/113633msec); 0 zone resets slat (usec): min=57, max=23599, avg=504.41, stdev=1388.89 clat (msec): min=233, max=2149, avg=956.54, stdev=261.73 lat (msec): min=234, max=2149, avg=957.05, stdev=261.71 clat percentiles (msec): | 1.00th=[ 418], 5.00th=[ 584], 10.00th=[ 659], 20.00th=[ 735], | 30.00th=[ 810], 40.00th=[ 869], 50.00th=[ 936], 60.00th=[ 995], | 70.00th=[ 1070], 80.00th=[ 1150], 90.00th=[ 1284], 95.00th=[ 1418], | 99.00th=[ 1737], 99.50th=[ 1821], 99.90th=[ 2072], 99.95th=[ 2165], | 99.99th=[ 2165] bw ( KiB/s): min= 7, max= 118, per=24.66%, avg=45.12, stdev=20.39, samples=225 iops : min= 1, max= 29, avg=10.74, stdev= 5.12, samples=225 lat (msec) : 20=0.04%, 50=0.12%, 100=0.16%, 250=0.82%, 500=36.91% lat (msec) : 750=22.07%, 1000=19.77%, 2000=20.04%, >=2000=0.08% cpu : usr=0.09%, sys=0.73%, ctx=4965, 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=145320: Fri Aug 14 09:42:47 2026 read: IOPS=10, BW=43.8KiB/s (44.9kB/s)(4976KiB/113552msec) slat (usec): min=2907, max=82552, avg=16318.85, stdev=9121.06 clat (msec): min=11, max=931, avg=439.78, stdev=112.24 lat (msec): min=29, max=940, avg=456.10, stdev=113.55 clat percentiles (msec): | 1.00th=[ 178], 5.00th=[ 275], 10.00th=[ 313], 20.00th=[ 355], | 30.00th=[ 380], 40.00th=[ 409], 50.00th=[ 435], 60.00th=[ 456], | 70.00th=[ 485], 80.00th=[ 523], 90.00th=[ 584], 95.00th=[ 634], | 99.00th=[ 760], 99.50th=[ 818], 99.90th=[ 927], 99.95th=[ 936], | 99.99th=[ 936] bw ( KiB/s): min= 7, max= 119, per=25.01%, avg=44.01, stdev=20.42, samples=221 iops : min= 1, max= 29, avg=10.46, stdev= 5.13, samples=221 write: IOPS=11, BW=46.4KiB/s (47.5kB/s)(5264KiB/113552msec); 0 zone resets slat (usec): min=56, max=11718, avg=445.79, stdev=1044.60 clat (msec): min=293, max=2156, avg=945.88, stdev=257.19 lat (msec): min=293, max=2156, avg=946.33, stdev=257.18 clat percentiles (msec): | 1.00th=[ 401], 5.00th=[ 558], 10.00th=[ 642], 20.00th=[ 735], | 30.00th=[ 810], 40.00th=[ 877], 50.00th=[ 936], 60.00th=[ 986], | 70.00th=[ 1053], 80.00th=[ 1133], 90.00th=[ 1250], 95.00th=[ 1385], | 99.00th=[ 1720], 99.50th=[ 1821], 99.90th=[ 2072], 99.95th=[ 2165], | 99.99th=[ 2165] bw ( KiB/s): min= 7, max= 119, per=25.10%, avg=45.93, stdev=20.05, samples=224 iops : min= 1, max= 29, avg=10.95, stdev= 5.04, samples=224 lat (msec) : 20=0.04%, 50=0.12%, 100=0.23%, 250=0.86%, 500=36.25% lat (msec) : 750=21.84%, 1000=21.45%, 2000=19.10%, >=2000=0.12% cpu : usr=0.10%, sys=0.78%, ctx=4478, 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=145321: Fri Aug 14 09:42:47 2026 read: IOPS=10, BW=43.9KiB/s (44.9kB/s)(4984KiB/113552msec) slat (usec): min=61, max=67856, avg=15673.89, stdev=8641.38 clat (msec): min=15, max=1053, avg=441.11, stdev=116.81 lat (msec): min=22, max=1068, avg=456.79, stdev=118.29 clat percentiles (msec): | 1.00th=[ 140], 5.00th=[ 284], 10.00th=[ 317], 20.00th=[ 355], | 30.00th=[ 384], 40.00th=[ 405], 50.00th=[ 430], 60.00th=[ 456], | 70.00th=[ 481], 80.00th=[ 523], 90.00th=[ 584], 95.00th=[ 651], | 99.00th=[ 793], 99.50th=[ 877], 99.90th=[ 936], 99.95th=[ 1053], | 99.99th=[ 1053] bw ( KiB/s): min= 7, max= 135, per=24.90%, avg=43.83, stdev=20.00, samples=223 iops : min= 1, max= 33, avg=10.42, stdev= 5.01, samples=223 write: IOPS=11, BW=46.3KiB/s (47.4kB/s)(5256KiB/113552msec); 0 zone resets slat (usec): min=37, max=20156, avg=476.76, stdev=1205.09 clat (msec): min=168, max=2227, avg=948.06, stdev=255.14 lat (msec): min=170, max=2228, avg=948.54, stdev=255.11 clat percentiles (msec): | 1.00th=[ 426], 5.00th=[ 558], 10.00th=[ 651], 20.00th=[ 743], | 30.00th=[ 810], 40.00th=[ 877], 50.00th=[ 927], 60.00th=[ 995], | 70.00th=[ 1062], 80.00th=[ 1150], 90.00th=[ 1250], 95.00th=[ 1368], | 99.00th=[ 1653], 99.50th=[ 1871], 99.90th=[ 2140], 99.95th=[ 2232], | 99.99th=[ 2232] bw ( KiB/s): min= 7, max= 128, per=24.95%, avg=45.66, stdev=20.23, samples=224 iops : min= 1, max= 32, avg=10.88, stdev= 5.10, samples=224 lat (msec) : 20=0.04%, 50=0.04%, 100=0.31%, 250=0.74%, 500=36.09% lat (msec) : 750=21.41%, 1000=21.13%, 2000=20.08%, >=2000=0.16% cpu : usr=0.10%, sys=0.74%, ctx=4519, 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=145322: Fri Aug 14 09:42:47 2026 read: IOPS=11, BW=44.6KiB/s (45.7kB/s)(5060KiB/113342msec) slat (usec): min=3104, max=61865, avg=15759.10, stdev=8193.24 clat (msec): min=13, max=1090, avg=442.14, stdev=118.97 lat (msec): min=45, max=1119, avg=457.91, stdev=119.86 clat percentiles (msec): | 1.00th=[ 224], 5.00th=[ 284], 10.00th=[ 317], 20.00th=[ 351], | 30.00th=[ 376], 40.00th=[ 401], 50.00th=[ 430], 60.00th=[ 456], | 70.00th=[ 485], 80.00th=[ 527], 90.00th=[ 592], 95.00th=[ 651], | 99.00th=[ 818], 99.50th=[ 860], 99.90th=[ 1083], 99.95th=[ 1099], | 99.99th=[ 1099] bw ( KiB/s): min= 7, max= 112, per=25.45%, avg=44.79, stdev=21.20, samples=221 iops : min= 1, max= 28, avg=10.66, stdev= 5.35, samples=221 write: IOPS=11, BW=45.7KiB/s (46.8kB/s)(5180KiB/113342msec); 0 zone resets slat (usec): min=46, max=21433, avg=500.48, stdev=1396.92 clat (msec): min=292, max=2085, avg=948.64, stdev=254.30 lat (msec): min=292, max=2085, avg=949.14, stdev=254.28 clat percentiles (msec): | 1.00th=[ 422], 5.00th=[ 567], 10.00th=[ 642], 20.00th=[ 743], | 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=[ 2039], 99.95th=[ 2089], | 99.99th=[ 2089] bw ( KiB/s): min= 7, max= 126, per=24.80%, avg=45.39, stdev=19.83, samples=223 iops : min= 1, max= 31, avg=10.82, stdev= 4.97, samples=223 lat (msec) : 20=0.08%, 50=0.08%, 100=0.12%, 250=0.74%, 500=36.72% lat (msec) : 750=21.56%, 1000=21.25%, 2000=19.34%, >=2000=0.12% cpu : usr=0.11%, sys=0.74%, ctx=4600, 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=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=177KiB/s (181kB/s), 43.8KiB/s-44.6KiB/s (44.9kB/s-45.7kB/s), io=19.6MiB (20.5MB), run=113342-113633msec WRITE: bw=184KiB/s (188kB/s), 45.7KiB/s-46.4KiB/s (46.8kB/s-47.5kB/s), io=20.4MiB (21.4MB), run=113342-113633msec 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=145344: Fri Aug 14 09:42:58 2026 read: IOPS=2, BW=80.0MiB/s (83.9MB/s)(40.0MiB/500msec) slat (nsec): min=39679k, max=39679k, avg=39679089.00, stdev= 0.00 clat (nsec): min=438905k, max=438905k, avg=438904757.00, stdev= 0.00 lat (nsec): min=478600k, max=478600k, avg=478600409.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 439], 5.00th=[ 439], 10.00th=[ 439], 20.00th=[ 439], | 30.00th=[ 439], 40.00th=[ 439], 50.00th=[ 439], 60.00th=[ 439], | 70.00th=[ 439], 80.00th=[ 439], 90.00th=[ 439], 95.00th=[ 439], | 99.00th=[ 439], 99.50th=[ 439], 99.90th=[ 439], 99.95th=[ 439], | 99.99th=[ 439] lat (msec) : 500=100.00% cpu : usr=0.40%, sys=2.40%, ctx=6, 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=80.0MiB/s (83.9MB/s), 80.0MiB/s-80.0MiB/s (83.9MB/s-83.9MB/s), io=40.0MiB (41.9MB), run=500-500msec 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