== sanity test 398c: run fio to test AIO ================= 03:20:04 (1788592804) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.51284 s, 81.8 MB/s osc.lustre-OST0000-osc-ffff962e0509d000.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=147145: Sat Sep 5 03:22:51 2026 write: IOPS=16, BW=65.4KiB/s (66.0kB/s)(10.0MiB/156514msec); 0 zone resets slat (usec): min=28, max=17390, avg=202.10, stdev=799.73 clat (msec): min=388, max=2061, avg=976.79, stdev=260.31 lat (msec): min=388, max=2061, avg=976.99, stdev=260.31 clat percentiles (msec): | 1.00th=[ 405], 5.00th=[ 600], 10.00th=[ 667], 20.00th=[ 768], | 30.00th=[ 835], 40.00th=[ 902], 50.00th=[ 961], 60.00th=[ 1028], | 70.00th=[ 1099], 80.00th=[ 1167], 90.00th=[ 1301], 95.00th=[ 1435], | 99.00th=[ 1687], 99.50th=[ 1821], 99.90th=[ 1938], 99.95th=[ 2056], | 99.99th=[ 2056] bw ( KiB/s): min= 8, max= 254, per=25.08%, avg=65.47, stdev=27.90, samples=308 iops : min= 2, max= 63, avg=15.91, stdev= 6.95, samples=308 lat (msec) : 500=3.20%, 750=14.84%, 1000=38.12%, 2000=43.75%, >=2000=0.08% cpu : usr=0.04%, sys=0.22%, ctx=1635, 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=147146: Sat Sep 5 03:22:51 2026 write: IOPS=16, BW=65.5KiB/s (67.0kB/s)(10.0MiB/156406msec); 0 zone resets slat (usec): min=29, max=27473, avg=240.59, stdev=1114.90 clat (msec): min=212, max=2074, avg=975.93, stdev=265.39 lat (msec): min=213, max=2074, avg=976.17, stdev=265.39 clat percentiles (msec): | 1.00th=[ 384], 5.00th=[ 567], 10.00th=[ 659], 20.00th=[ 776], | 30.00th=[ 844], 40.00th=[ 902], 50.00th=[ 961], 60.00th=[ 1020], | 70.00th=[ 1083], 80.00th=[ 1183], 90.00th=[ 1301], 95.00th=[ 1435], | 99.00th=[ 1687], 99.50th=[ 1821], 99.90th=[ 2005], 99.95th=[ 2072], | 99.99th=[ 2072] bw ( KiB/s): min= 7, max= 135, per=24.91%, avg=65.02, stdev=27.29, samples=310 iops : min= 1, max= 33, avg=15.79, stdev= 6.81, samples=310 lat (msec) : 250=0.55%, 500=2.85%, 750=13.55%, 1000=39.77%, 2000=43.16% lat (msec) : >=2000=0.12% cpu : usr=0.06%, sys=0.23%, ctx=2077, 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=147147: Sat Sep 5 03:22:51 2026 write: IOPS=16, BW=65.4KiB/s (67.0kB/s)(10.0MiB/156455msec); 0 zone resets slat (usec): min=28, max=20622, avg=229.42, stdev=1008.77 clat (msec): min=359, max=2076, avg=976.40, stdev=261.42 lat (msec): min=359, max=2077, avg=976.63, stdev=261.46 clat percentiles (msec): | 1.00th=[ 368], 5.00th=[ 592], 10.00th=[ 667], 20.00th=[ 776], | 30.00th=[ 835], 40.00th=[ 902], 50.00th=[ 961], 60.00th=[ 1020], | 70.00th=[ 1083], 80.00th=[ 1167], 90.00th=[ 1301], 95.00th=[ 1435], | 99.00th=[ 1687], 99.50th=[ 1821], 99.90th=[ 2039], 99.95th=[ 2039], | 99.99th=[ 2072] bw ( KiB/s): min= 8, max= 254, per=25.50%, avg=66.55, stdev=33.25, samples=303 iops : min= 2, max= 63, avg=16.18, stdev= 8.34, samples=303 lat (msec) : 500=3.32%, 750=12.77%, 1000=40.66%, 2000=43.09%, >=2000=0.16% cpu : usr=0.05%, sys=0.20%, ctx=1624, 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=147148: Sat Sep 5 03:22:51 2026 write: IOPS=16, BW=65.5KiB/s (67.1kB/s)(10.0MiB/156365msec); 0 zone resets slat (usec): min=28, max=18453, avg=247.29, stdev=1049.46 clat (msec): min=161, max=2067, avg=976.63, stdev=268.19 lat (msec): min=161, max=2067, avg=976.88, stdev=268.15 clat percentiles (msec): | 1.00th=[ 405], 5.00th=[ 567], 10.00th=[ 659], 20.00th=[ 768], | 30.00th=[ 835], 40.00th=[ 902], 50.00th=[ 961], 60.00th=[ 1028], | 70.00th=[ 1099], 80.00th=[ 1183], 90.00th=[ 1301], 95.00th=[ 1452], | 99.00th=[ 1687], 99.50th=[ 1838], 99.90th=[ 2039], 99.95th=[ 2039], | 99.99th=[ 2072] bw ( KiB/s): min= 7, max= 183, per=25.08%, avg=65.45, stdev=26.73, samples=308 iops : min= 1, max= 45, avg=15.90, stdev= 6.69, samples=308 lat (msec) : 250=0.35%, 500=2.81%, 750=14.80%, 1000=38.52%, 2000=43.32% lat (msec) : >=2000=0.20% cpu : usr=0.04%, sys=0.22%, ctx=1823, 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=262KiB/s (268kB/s), 65.4KiB/s-65.5KiB/s (66.0kB/s-67.1kB/s), io=40.0MiB (41.9MB), run=156365-156514msec 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=147180: Sat Sep 5 03:24:50 2026 read: IOPS=11, BW=46.2KiB/s (47.3kB/s)(5048KiB/109299msec) slat (usec): min=2976, max=82972, avg=14278.16, stdev=8210.26 clat (msec): min=20, max=1159, avg=434.19, stdev=126.35 lat (msec): min=34, max=1168, avg=448.48, stdev=127.42 clat percentiles (msec): | 1.00th=[ 188], 5.00th=[ 266], 10.00th=[ 300], 20.00th=[ 338], | 30.00th=[ 363], 40.00th=[ 393], 50.00th=[ 422], 60.00th=[ 451], | 70.00th=[ 481], 80.00th=[ 523], 90.00th=[ 592], 95.00th=[ 642], | 99.00th=[ 802], 99.50th=[ 894], 99.90th=[ 1133], 99.95th=[ 1167], | 99.99th=[ 1167] bw ( KiB/s): min= 7, max= 112, per=25.41%, avg=46.24, stdev=21.12, samples=214 iops : min= 1, max= 28, avg=11.05, stdev= 5.33, samples=214 write: IOPS=11, BW=47.5KiB/s (48.6kB/s)(5192KiB/109299msec); 0 zone resets slat (usec): min=30, max=19609, avg=298.56, stdev=1037.31 clat (msec): min=270, max=1724, avg=908.01, stdev=251.85 lat (msec): min=270, max=1725, avg=908.32, stdev=251.86 clat percentiles (msec): | 1.00th=[ 426], 5.00th=[ 518], 10.00th=[ 592], 20.00th=[ 676], | 30.00th=[ 760], 40.00th=[ 827], 50.00th=[ 894], 60.00th=[ 961], | 70.00th=[ 1045], 80.00th=[ 1133], 90.00th=[ 1250], 95.00th=[ 1351], | 99.00th=[ 1502], 99.50th=[ 1552], 99.90th=[ 1720], 99.95th=[ 1720], | 99.99th=[ 1720] bw ( KiB/s): min= 7, max= 119, per=24.87%, avg=47.26, stdev=21.60, samples=215 iops : min= 1, max= 29, avg=11.30, stdev= 5.40, samples=215 lat (msec) : 50=0.20%, 100=0.27%, 250=1.29%, 500=37.38%, 750=24.41% lat (msec) : 1000=18.87%, 2000=17.58% cpu : usr=0.10%, sys=0.59%, ctx=4679, 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=147181: Sat Sep 5 03:24:50 2026 read: IOPS=11, BW=45.4KiB/s (46.5kB/s)(4976KiB/109631msec) slat (msec): min=2, max=466, avg=14.57, stdev=15.12 clat (msec): min=11, max=807, avg=425.36, stdev=114.22 lat (msec): min=17, max=816, avg=439.93, stdev=114.89 clat percentiles (msec): | 1.00th=[ 218], 5.00th=[ 275], 10.00th=[ 300], 20.00th=[ 334], | 30.00th=[ 359], 40.00th=[ 384], 50.00th=[ 414], 60.00th=[ 439], | 70.00th=[ 477], 80.00th=[ 510], 90.00th=[ 584], 95.00th=[ 634], | 99.00th=[ 743], 99.50th=[ 768], 99.90th=[ 793], 99.95th=[ 810], | 99.99th=[ 810] bw ( KiB/s): min= 7, max= 119, per=24.68%, avg=44.93, stdev=22.03, samples=217 iops : min= 1, max= 29, avg=10.72, stdev= 5.52, samples=217 write: IOPS=12, BW=48.0KiB/s (49.2kB/s)(5264KiB/109631msec); 0 zone resets slat (usec): min=32, max=19219, avg=301.99, stdev=977.99 clat (msec): min=343, max=1771, avg=913.95, stdev=254.31 lat (msec): min=344, max=1771, avg=914.25, stdev=254.33 clat percentiles (msec): | 1.00th=[ 430], 5.00th=[ 550], 10.00th=[ 600], 20.00th=[ 684], | 30.00th=[ 751], 40.00th=[ 818], 50.00th=[ 885], 60.00th=[ 961], | 70.00th=[ 1053], 80.00th=[ 1150], 90.00th=[ 1267], 95.00th=[ 1368], | 99.00th=[ 1519], 99.50th=[ 1586], 99.90th=[ 1670], 99.95th=[ 1770], | 99.99th=[ 1770] bw ( KiB/s): min= 7, max= 119, per=24.99%, avg=47.47, stdev=22.05, samples=217 iops : min= 1, max= 29, avg=11.35, stdev= 5.55, samples=217 lat (msec) : 20=0.08%, 50=0.12%, 100=0.20%, 250=0.86%, 500=37.46% lat (msec) : 750=24.61%, 1000=18.83%, 2000=17.85% cpu : usr=0.12%, sys=0.61%, ctx=4810, 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=147182: Sat Sep 5 03:24:50 2026 read: IOPS=11, BW=45.4KiB/s (46.5kB/s)(4984KiB/109672msec) slat (usec): min=3237, max=68878, avg=14283.45, stdev=7877.07 clat (msec): min=19, max=815, avg=427.79, stdev=113.15 lat (msec): min=27, max=824, avg=442.08, stdev=114.75 clat percentiles (msec): | 1.00th=[ 124], 5.00th=[ 275], 10.00th=[ 300], 20.00th=[ 334], | 30.00th=[ 363], 40.00th=[ 393], 50.00th=[ 418], 60.00th=[ 447], | 70.00th=[ 477], 80.00th=[ 518], 90.00th=[ 584], 95.00th=[ 634], | 99.00th=[ 709], 99.50th=[ 743], 99.90th=[ 785], 99.95th=[ 818], | 99.99th=[ 818] bw ( KiB/s): min= 7, max= 119, per=24.93%, avg=45.37, stdev=22.59, samples=216 iops : min= 1, max= 29, avg=10.83, stdev= 5.69, samples=216 write: IOPS=11, BW=47.9KiB/s (49.1kB/s)(5256KiB/109672msec); 0 zone resets slat (usec): min=31, max=14977, avg=268.22, stdev=777.37 clat (msec): min=52, max=1691, avg=913.39, stdev=255.75 lat (msec): min=52, max=1691, avg=913.66, stdev=255.72 clat percentiles (msec): | 1.00th=[ 435], 5.00th=[ 542], 10.00th=[ 592], 20.00th=[ 684], | 30.00th=[ 760], 40.00th=[ 835], 50.00th=[ 885], 60.00th=[ 961], | 70.00th=[ 1045], 80.00th=[ 1133], 90.00th=[ 1267], 95.00th=[ 1385], | 99.00th=[ 1552], 99.50th=[ 1620], 99.90th=[ 1653], 99.95th=[ 1687], | 99.99th=[ 1687] bw ( KiB/s): min= 7, max= 111, per=24.87%, avg=47.25, stdev=20.36, samples=217 iops : min= 1, max= 27, avg=11.30, stdev= 5.11, samples=217 lat (msec) : 20=0.04%, 50=0.12%, 100=0.20%, 250=1.17%, 500=36.76% lat (msec) : 750=24.77%, 1000=19.10%, 2000=17.85% cpu : usr=0.10%, sys=0.60%, ctx=4445, 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=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=147183: Sat Sep 5 03:24:50 2026 read: IOPS=11, BW=46.2KiB/s (47.3kB/s)(5060KiB/109432msec) slat (usec): min=54, max=68304, avg=14202.15, stdev=8001.79 clat (msec): min=20, max=1156, avg=433.78, stdev=120.24 lat (msec): min=26, max=1165, avg=447.99, stdev=121.45 clat percentiles (msec): | 1.00th=[ 201], 5.00th=[ 279], 10.00th=[ 309], 20.00th=[ 338], | 30.00th=[ 363], 40.00th=[ 393], 50.00th=[ 422], 60.00th=[ 447], | 70.00th=[ 481], 80.00th=[ 523], 90.00th=[ 592], 95.00th=[ 642], | 99.00th=[ 785], 99.50th=[ 827], 99.90th=[ 1083], 99.95th=[ 1150], | 99.99th=[ 1150] bw ( KiB/s): min= 7, max= 103, per=25.76%, avg=46.88, stdev=19.91, samples=212 iops : min= 1, max= 25, avg=11.21, stdev= 5.02, samples=212 write: IOPS=11, BW=47.3KiB/s (48.5kB/s)(5180KiB/109432msec); 0 zone resets slat (usec): min=35, max=11400, avg=285.42, stdev=847.45 clat (msec): min=167, max=1676, avg=913.19, stdev=261.45 lat (msec): min=167, max=1676, avg=913.48, stdev=261.42 clat percentiles (msec): | 1.00th=[ 376], 5.00th=[ 527], 10.00th=[ 592], 20.00th=[ 676], | 30.00th=[ 768], 40.00th=[ 827], 50.00th=[ 894], 60.00th=[ 969], | 70.00th=[ 1036], 80.00th=[ 1133], 90.00th=[ 1267], 95.00th=[ 1385], | 99.00th=[ 1519], 99.50th=[ 1603], 99.90th=[ 1670], 99.95th=[ 1670], | 99.99th=[ 1670] bw ( KiB/s): min= 7, max= 102, per=24.88%, avg=47.27, stdev=20.63, samples=214 iops : min= 1, max= 25, avg=11.31, stdev= 5.18, samples=214 lat (msec) : 50=0.20%, 100=0.12%, 250=1.17%, 500=37.70%, 750=23.83% lat (msec) : 1000=19.06%, 2000=17.93% cpu : usr=0.09%, sys=0.59%, ctx=4360, 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=183KiB/s (187kB/s), 45.4KiB/s-46.2KiB/s (46.5kB/s-47.3kB/s), io=19.6MiB (20.5MB), run=109299-109672msec WRITE: bw=190KiB/s (195kB/s), 47.3KiB/s-48.0KiB/s (48.5kB/s-49.2kB/s), io=20.4MiB (21.4MB), run=109299-109672msec 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=147203: Sat Sep 5 03:25:00 2026 read: IOPS=2, BW=86.2MiB/s (90.4MB/s)(40.0MiB/464msec) slat (nsec): min=20607k, max=20607k, avg=20606538.00, stdev= 0.00 clat (nsec): min=429591k, max=429591k, avg=429591294.00, stdev= 0.00 lat (nsec): min=450201k, max=450201k, avg=450201214.00, 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=2.38%, ctx=19, 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