== sanity test 398c: run fio to test AIO ================= 21:21:28 (1786411288) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.665999 s, 63.0 MB/s osc.lustre-OST0000-osc-ffff915f08421800.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=144698: Mon Aug 10 21:24:56 2026 write: IOPS=13, BW=52.3KiB/s (53.6kB/s)(10.0MiB/195664msec); 0 zone resets slat (usec): min=35, max=13625, avg=264.53, stdev=740.16 clat (msec): min=74, max=3014, avg=1222.12, stdev=415.23 lat (msec): min=78, max=3014, avg=1222.38, stdev=415.21 clat percentiles (msec): | 1.00th=[ 447], 5.00th=[ 676], 10.00th=[ 751], 20.00th=[ 919], | 30.00th=[ 995], 40.00th=[ 1083], 50.00th=[ 1167], 60.00th=[ 1250], | 70.00th=[ 1351], 80.00th=[ 1485], 90.00th=[ 1770], 95.00th=[ 2056], | 99.00th=[ 2500], 99.50th=[ 2702], 99.90th=[ 2869], 99.95th=[ 3004], | 99.99th=[ 3004] bw ( KiB/s): min= 7, max= 136, per=25.62%, avg=53.54, stdev=27.91, samples=375 iops : min= 1, max= 34, avg=12.89, stdev= 6.99, samples=375 lat (msec) : 100=0.04%, 250=0.59%, 500=1.02%, 750=7.97%, 1000=20.66% lat (msec) : 2000=64.26%, >=2000=5.47% cpu : usr=0.04%, sys=0.24%, ctx=2193, 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=144699: Mon Aug 10 21:24:56 2026 write: IOPS=13, BW=52.3KiB/s (53.6kB/s)(10.0MiB/195736msec); 0 zone resets slat (usec): min=35, max=18366, avg=268.16, stdev=903.01 clat (msec): min=269, max=3068, avg=1222.26, stdev=411.40 lat (msec): min=269, max=3068, avg=1222.53, stdev=411.43 clat percentiles (msec): | 1.00th=[ 468], 5.00th=[ 667], 10.00th=[ 743], 20.00th=[ 919], | 30.00th=[ 1011], 40.00th=[ 1099], 50.00th=[ 1167], 60.00th=[ 1250], | 70.00th=[ 1351], 80.00th=[ 1502], 90.00th=[ 1703], 95.00th=[ 1989], | 99.00th=[ 2534], 99.50th=[ 2802], 99.90th=[ 2937], 99.95th=[ 3004], | 99.99th=[ 3071] bw ( KiB/s): min= 7, max= 136, per=27.16%, avg=56.77, stdev=29.40, samples=354 iops : min= 1, max= 34, avg=13.70, stdev= 7.42, samples=354 lat (msec) : 500=1.29%, 750=8.95%, 1000=19.30%, 2000=65.51%, >=2000=4.96% cpu : usr=0.03%, sys=0.24%, ctx=1917, 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=144700: Mon Aug 10 21:24:56 2026 write: IOPS=13, BW=52.3KiB/s (53.6kB/s)(10.0MiB/195738msec); 0 zone resets slat (usec): min=36, max=25899, avg=323.59, stdev=1187.34 clat (msec): min=304, max=2997, avg=1222.08, stdev=407.42 lat (msec): min=305, max=2997, avg=1222.41, stdev=407.43 clat percentiles (msec): | 1.00th=[ 456], 5.00th=[ 676], 10.00th=[ 760], 20.00th=[ 902], | 30.00th=[ 995], 40.00th=[ 1083], 50.00th=[ 1167], 60.00th=[ 1250], | 70.00th=[ 1368], 80.00th=[ 1502], 90.00th=[ 1720], 95.00th=[ 2022], | 99.00th=[ 2567], 99.50th=[ 2735], 99.90th=[ 3004], 99.95th=[ 3004], | 99.99th=[ 3004] bw ( KiB/s): min= 7, max= 136, per=25.43%, avg=53.16, stdev=27.18, samples=378 iops : min= 1, max= 34, avg=12.79, stdev= 6.85, samples=378 lat (msec) : 500=1.29%, 750=8.24%, 1000=21.29%, 2000=63.98%, >=2000=5.20% cpu : usr=0.04%, sys=0.24%, ctx=2053, 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=144701: Mon Aug 10 21:24:56 2026 write: IOPS=13, BW=52.3KiB/s (53.6kB/s)(10.0MiB/195801msec); 0 zone resets slat (usec): min=36, max=30697, avg=324.65, stdev=1169.48 clat (msec): min=195, max=3068, avg=1222.58, stdev=409.20 lat (msec): min=195, max=3068, avg=1222.91, stdev=409.18 clat percentiles (msec): | 1.00th=[ 426], 5.00th=[ 659], 10.00th=[ 776], 20.00th=[ 919], | 30.00th=[ 1003], 40.00th=[ 1083], 50.00th=[ 1150], 60.00th=[ 1250], | 70.00th=[ 1351], 80.00th=[ 1502], 90.00th=[ 1737], 95.00th=[ 2022], | 99.00th=[ 2433], 99.50th=[ 2802], 99.90th=[ 3071], 99.95th=[ 3071], | 99.99th=[ 3071] bw ( KiB/s): min= 7, max= 152, per=25.68%, avg=53.67, stdev=30.90, samples=374 iops : min= 1, max= 38, avg=12.92, stdev= 7.76, samples=374 lat (msec) : 250=0.62%, 500=0.86%, 750=7.73%, 1000=20.35%, 2000=65.12% lat (msec) : >=2000=5.31% cpu : usr=0.04%, sys=0.27%, ctx=2241, 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=209KiB/s (214kB/s), 52.3KiB/s-52.3KiB/s (53.6kB/s-53.6kB/s), io=40.0MiB (41.9MB), run=195664-195801msec 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=144739: Mon Aug 10 21:27:05 2026 read: IOPS=10, BW=42.1KiB/s (43.1kB/s)(5048KiB/119857msec) slat (usec): min=2907, max=63545, avg=15291.17, stdev=8633.27 clat (msec): min=32, max=992, avg=464.14, stdev=146.51 lat (msec): min=39, max=1032, avg=479.44, stdev=148.16 clat percentiles (msec): | 1.00th=[ 167], 5.00th=[ 247], 10.00th=[ 292], 20.00th=[ 347], | 30.00th=[ 388], 40.00th=[ 422], 50.00th=[ 451], 60.00th=[ 481], | 70.00th=[ 527], 80.00th=[ 575], 90.00th=[ 651], 95.00th=[ 718], | 99.00th=[ 894], 99.50th=[ 969], 99.90th=[ 978], 99.95th=[ 995], | 99.99th=[ 995] bw ( KiB/s): min= 7, max= 109, per=25.16%, avg=42.02, stdev=22.12, samples=235 iops : min= 1, max= 27, avg=10.01, stdev= 5.55, samples=235 write: IOPS=10, BW=43.3KiB/s (44.4kB/s)(5192KiB/119857msec); 0 zone resets slat (usec): min=46, max=20622, avg=424.59, stdev=1223.91 clat (msec): min=240, max=2250, avg=1007.57, stdev=322.41 lat (msec): min=241, max=2250, avg=1008.00, stdev=322.37 clat percentiles (msec): | 1.00th=[ 418], 5.00th=[ 550], 10.00th=[ 617], 20.00th=[ 735], | 30.00th=[ 818], 40.00th=[ 902], 50.00th=[ 969], 60.00th=[ 1062], | 70.00th=[ 1150], 80.00th=[ 1250], 90.00th=[ 1452], 95.00th=[ 1620], | 99.00th=[ 2005], 99.50th=[ 2106], 99.90th=[ 2232], 99.95th=[ 2265], | 99.99th=[ 2265] bw ( KiB/s): min= 7, max= 104, per=24.95%, avg=43.41, stdev=20.36, samples=234 iops : min= 1, max= 26, avg=10.35, stdev= 5.13, samples=234 lat (msec) : 50=0.08%, 100=0.20%, 250=2.62%, 500=30.59%, 750=24.88% lat (msec) : 1000=18.36%, 2000=22.73%, >=2000=0.55% cpu : usr=0.11%, sys=0.77%, ctx=4766, 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=144740: Mon Aug 10 21:27:05 2026 read: IOPS=10, BW=41.5KiB/s (42.5kB/s)(4976KiB/119859msec) slat (usec): min=3237, max=72961, avg=15679.69, stdev=8980.78 clat (msec): min=12, max=975, avg=465.65, stdev=143.03 lat (msec): min=22, max=990, avg=481.34, stdev=144.45 clat percentiles (msec): | 1.00th=[ 161], 5.00th=[ 251], 10.00th=[ 292], 20.00th=[ 347], | 30.00th=[ 393], 40.00th=[ 426], 50.00th=[ 451], 60.00th=[ 493], | 70.00th=[ 531], 80.00th=[ 575], 90.00th=[ 659], 95.00th=[ 718], | 99.00th=[ 827], 99.50th=[ 885], 99.90th=[ 969], 99.95th=[ 978], | 99.99th=[ 978] bw ( KiB/s): min= 7, max= 120, per=24.70%, avg=41.24, stdev=21.46, samples=236 iops : min= 1, max= 30, avg= 9.81, stdev= 5.40, samples=236 write: IOPS=10, BW=43.9KiB/s (44.0kB/s)(5264KiB/119859msec); 0 zone resets slat (usec): min=52, max=15376, avg=401.64, stdev=1118.79 clat (msec): min=351, max=2225, avg=998.93, stdev=335.53 lat (msec): min=351, max=2226, avg=999.33, stdev=335.50 clat percentiles (msec): | 1.00th=[ 397], 5.00th=[ 498], 10.00th=[ 592], 20.00th=[ 718], | 30.00th=[ 802], 40.00th=[ 894], 50.00th=[ 969], 60.00th=[ 1053], | 70.00th=[ 1150], 80.00th=[ 1250], 90.00th=[ 1435], 95.00th=[ 1620], | 99.00th=[ 1989], 99.50th=[ 2039], 99.90th=[ 2140], 99.95th=[ 2232], | 99.99th=[ 2232] bw ( KiB/s): min= 7, max= 127, per=25.08%, avg=43.64, stdev=21.38, samples=236 iops : min= 1, max= 31, avg=10.42, stdev= 5.37, samples=236 lat (msec) : 20=0.08%, 50=0.12%, 100=0.20%, 250=2.03%, 500=30.74% lat (msec) : 750=26.05%, 1000=17.15%, 2000=23.24%, >=2000=0.39% cpu : usr=0.11%, sys=0.73%, ctx=4812, 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=144741: Mon Aug 10 21:27:05 2026 read: IOPS=10, BW=41.6KiB/s (42.6kB/s)(4984KiB/119733msec) slat (usec): min=83, max=74520, avg=15892.36, stdev=8950.01 clat (msec): min=13, max=1217, avg=471.24, stdev=147.25 lat (msec): min=13, max=1228, avg=487.14, stdev=149.66 clat percentiles (msec): | 1.00th=[ 165], 5.00th=[ 257], 10.00th=[ 300], 20.00th=[ 351], | 30.00th=[ 393], 40.00th=[ 430], 50.00th=[ 464], 60.00th=[ 493], | 70.00th=[ 535], 80.00th=[ 584], 90.00th=[ 667], 95.00th=[ 743], | 99.00th=[ 877], 99.50th=[ 944], 99.90th=[ 969], 99.95th=[ 1217], | 99.99th=[ 1217] bw ( KiB/s): min= 7, max= 135, per=24.82%, avg=41.45, stdev=20.44, samples=236 iops : min= 1, max= 33, avg= 9.87, stdev= 5.09, samples=236 write: IOPS=10, BW=43.9KiB/s (44.0kB/s)(5256KiB/119733msec); 0 zone resets slat (usec): min=55, max=55777, avg=435.26, stdev=1872.68 clat (msec): min=183, max=2286, avg=994.56, stdev=330.00 lat (msec): min=183, max=2286, avg=995.00, stdev=330.05 clat percentiles (msec): | 1.00th=[ 409], 5.00th=[ 510], 10.00th=[ 592], 20.00th=[ 718], | 30.00th=[ 802], 40.00th=[ 885], 50.00th=[ 961], 60.00th=[ 1062], | 70.00th=[ 1150], 80.00th=[ 1250], 90.00th=[ 1418], 95.00th=[ 1620], | 99.00th=[ 2005], 99.50th=[ 2056], 99.90th=[ 2265], 99.95th=[ 2299], | 99.99th=[ 2299] bw ( KiB/s): min= 7, max= 111, per=24.94%, avg=43.39, stdev=22.43, samples=236 iops : min= 1, max= 27, avg=10.35, stdev= 5.66, samples=236 lat (msec) : 20=0.04%, 50=0.16%, 100=0.12%, 250=1.91%, 500=30.20% lat (msec) : 750=26.33%, 1000=18.09%, 2000=22.66%, >=2000=0.51% cpu : usr=0.11%, sys=0.72%, ctx=4866, 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=144742: Mon Aug 10 21:27:05 2026 read: IOPS=10, BW=42.2KiB/s (43.2kB/s)(5060KiB/119856msec) slat (usec): min=2320, max=74970, avg=15597.41, stdev=9045.22 clat (msec): min=10, max=983, avg=467.41, stdev=146.02 lat (msec): min=19, max=1002, avg=483.01, stdev=147.56 clat percentiles (msec): | 1.00th=[ 161], 5.00th=[ 243], 10.00th=[ 292], 20.00th=[ 347], | 30.00th=[ 393], 40.00th=[ 426], 50.00th=[ 460], 60.00th=[ 493], | 70.00th=[ 535], 80.00th=[ 592], 90.00th=[ 659], 95.00th=[ 709], | 99.00th=[ 869], 99.50th=[ 919], 99.90th=[ 978], 99.95th=[ 986], | 99.99th=[ 986] bw ( KiB/s): min= 7, max= 120, per=25.37%, avg=42.38, stdev=20.72, samples=234 iops : min= 1, max= 30, avg=10.10, stdev= 5.20, samples=234 write: IOPS=10, BW=43.2KiB/s (44.3kB/s)(5180KiB/119856msec); 0 zone resets slat (usec): min=52, max=44788, avg=463.40, stdev=1776.00 clat (msec): min=365, max=2321, avg=1005.68, stdev=324.99 lat (msec): min=365, max=2321, avg=1006.15, stdev=324.96 clat percentiles (msec): | 1.00th=[ 430], 5.00th=[ 542], 10.00th=[ 617], 20.00th=[ 718], | 30.00th=[ 810], 40.00th=[ 894], 50.00th=[ 961], 60.00th=[ 1062], | 70.00th=[ 1150], 80.00th=[ 1250], 90.00th=[ 1435], 95.00th=[ 1620], | 99.00th=[ 1921], 99.50th=[ 2005], 99.90th=[ 2140], 99.95th=[ 2333], | 99.99th=[ 2333] bw ( KiB/s): min= 7, max= 111, per=24.73%, avg=43.04, stdev=20.41, samples=235 iops : min= 1, max= 27, avg=10.26, stdev= 5.12, samples=235 lat (msec) : 20=0.04%, 50=0.12%, 100=0.16%, 250=2.58%, 500=29.84% lat (msec) : 750=26.48%, 1000=17.15%, 2000=23.40%, >=2000=0.23% cpu : usr=0.11%, sys=0.74%, ctx=4650, 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=167KiB/s (171kB/s), 41.5KiB/s-42.2KiB/s (42.5kB/s-43.2kB/s), io=19.6MiB (20.5MB), run=119733-119859msec WRITE: bw=174KiB/s (178kB/s), 43.2KiB/s-43.9KiB/s (44.3kB/s-44.0kB/s), io=20.4MiB (21.4MB), run=119733-119859msec 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=144764: Mon Aug 10 21:27:16 2026 read: IOPS=1, BW=61.6MiB/s (64.6MB/s)(40.0MiB/649msec) slat (nsec): min=36692k, max=36692k, avg=36692006.00, stdev= 0.00 clat (nsec): min=589936k, max=589936k, avg=589935811.00, stdev= 0.00 lat (nsec): min=626633k, max=626633k, avg=626632824.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 592], 5.00th=[ 592], 10.00th=[ 592], 20.00th=[ 592], | 30.00th=[ 592], 40.00th=[ 592], 50.00th=[ 592], 60.00th=[ 592], | 70.00th=[ 592], 80.00th=[ 592], 90.00th=[ 592], 95.00th=[ 592], | 99.00th=[ 592], 99.50th=[ 592], 99.90th=[ 592], 99.95th=[ 592], | 99.99th=[ 592] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=2.01%, 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=61.6MiB/s (64.6MB/s), 61.6MiB/s-61.6MiB/s (64.6MB/s-64.6MB/s), io=40.0MiB (41.9MB), run=649-649msec 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