== sanity test 398c: run fio to test AIO ================= 01:04:41 (1788671081) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.525015 s, 79.9 MB/s osc.lustre-OST0000-osc-ffff8917c7fce800.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=146472: Sun Sep 6 01:07:58 2026 write: IOPS=13, BW=54.8KiB/s (56.1kB/s)(10.0MiB/186936msec); 0 zone resets slat (usec): min=28, max=27125, avg=329.07, stdev=1174.45 clat (msec): min=75, max=2404, avg=1167.35, stdev=364.49 lat (msec): min=75, max=2404, avg=1167.68, stdev=364.48 clat percentiles (msec): | 1.00th=[ 275], 5.00th=[ 584], 10.00th=[ 751], 20.00th=[ 885], | 30.00th=[ 978], 40.00th=[ 1053], 50.00th=[ 1133], 60.00th=[ 1234], | 70.00th=[ 1351], 80.00th=[ 1452], 90.00th=[ 1620], 95.00th=[ 1821], | 99.00th=[ 2106], 99.50th=[ 2198], 99.90th=[ 2400], 99.95th=[ 2400], | 99.99th=[ 2400] bw ( KiB/s): min= 7, max= 199, per=24.98%, avg=54.70, stdev=27.67, samples=367 iops : min= 1, max= 49, avg=13.13, stdev= 6.94, samples=367 lat (msec) : 100=0.04%, 250=0.47%, 500=2.89%, 750=6.84%, 1000=23.67% lat (msec) : 2000=64.26%, >=2000=1.84% cpu : usr=0.05%, sys=0.22%, ctx=1986, 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=146473: Sun Sep 6 01:07:58 2026 write: IOPS=13, BW=54.8KiB/s (56.1kB/s)(10.0MiB/186985msec); 0 zone resets slat (usec): min=23, max=17590, avg=292.91, stdev=966.81 clat (msec): min=267, max=2464, avg=1167.50, stdev=359.36 lat (msec): min=267, max=2464, avg=1167.79, stdev=359.38 clat percentiles (msec): | 1.00th=[ 326], 5.00th=[ 609], 10.00th=[ 751], 20.00th=[ 877], | 30.00th=[ 978], 40.00th=[ 1053], 50.00th=[ 1133], 60.00th=[ 1234], | 70.00th=[ 1334], 80.00th=[ 1452], 90.00th=[ 1653], 95.00th=[ 1821], | 99.00th=[ 2056], 99.50th=[ 2232], 99.90th=[ 2400], 99.95th=[ 2400], | 99.99th=[ 2467] bw ( KiB/s): min= 7, max= 199, per=24.77%, avg=54.25, stdev=27.71, samples=370 iops : min= 1, max= 49, avg=13.02, stdev= 6.94, samples=370 lat (msec) : 500=3.28%, 750=6.76%, 1000=23.79%, 2000=64.69%, >=2000=1.48% cpu : usr=0.05%, sys=0.22%, ctx=1860, 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=146474: Sun Sep 6 01:07:58 2026 write: IOPS=13, BW=54.9KiB/s (56.3kB/s)(10.0MiB/186373msec); 0 zone resets slat (usec): min=29, max=21986, avg=301.81, stdev=1047.07 clat (msec): min=167, max=2462, avg=1164.07, stdev=366.64 lat (msec): min=168, max=2462, avg=1164.37, stdev=366.66 clat percentiles (msec): | 1.00th=[ 245], 5.00th=[ 592], 10.00th=[ 751], 20.00th=[ 885], | 30.00th=[ 978], 40.00th=[ 1053], 50.00th=[ 1150], 60.00th=[ 1234], | 70.00th=[ 1334], 80.00th=[ 1452], 90.00th=[ 1636], 95.00th=[ 1821], | 99.00th=[ 2106], 99.50th=[ 2165], 99.90th=[ 2366], 99.95th=[ 2400], | 99.99th=[ 2467] bw ( KiB/s): min= 7, max= 253, per=25.25%, avg=55.30, stdev=32.71, samples=363 iops : min= 1, max= 63, avg=13.29, stdev= 8.21, samples=363 lat (msec) : 250=1.29%, 500=2.50%, 750=6.17%, 1000=23.48%, 2000=64.69% lat (msec) : >=2000=1.88% cpu : usr=0.05%, sys=0.22%, ctx=1625, 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=146475: Sun Sep 6 01:07:58 2026 write: IOPS=13, BW=54.8KiB/s (56.1kB/s)(10.0MiB/186985msec); 0 zone resets slat (usec): min=28, max=14578, avg=285.67, stdev=975.97 clat (msec): min=254, max=2233, avg=1167.43, stdev=360.42 lat (msec): min=255, max=2233, avg=1167.72, stdev=360.41 clat percentiles (msec): | 1.00th=[ 317], 5.00th=[ 609], 10.00th=[ 743], 20.00th=[ 885], | 30.00th=[ 978], 40.00th=[ 1053], 50.00th=[ 1133], 60.00th=[ 1234], | 70.00th=[ 1334], 80.00th=[ 1469], 90.00th=[ 1636], 95.00th=[ 1821], | 99.00th=[ 2056], 99.50th=[ 2140], 99.90th=[ 2198], 99.95th=[ 2232], | 99.99th=[ 2232] bw ( KiB/s): min= 7, max= 191, per=25.61%, avg=56.08, stdev=30.54, samples=358 iops : min= 1, max= 47, avg=13.48, stdev= 7.64, samples=358 lat (msec) : 500=3.40%, 750=7.23%, 1000=23.36%, 2000=64.30%, >=2000=1.72% cpu : usr=0.05%, sys=0.22%, ctx=1796, 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=219KiB/s (224kB/s), 54.8KiB/s-54.9KiB/s (56.1kB/s-56.3kB/s), io=40.0MiB (41.9MB), run=186373-186985msec 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=146511: Sun Sep 6 01:10:07 2026 read: IOPS=10, BW=42.8KiB/s (43.8kB/s)(5048KiB/117895msec) slat (usec): min=3571, max=74376, avg=16648.66, stdev=9178.63 clat (msec): min=27, max=995, avg=466.62, stdev=121.82 lat (msec): min=37, max=1033, avg=483.27, stdev=122.94 clat percentiles (msec): | 1.00th=[ 218], 5.00th=[ 300], 10.00th=[ 330], 20.00th=[ 372], | 30.00th=[ 401], 40.00th=[ 422], 50.00th=[ 447], 60.00th=[ 485], | 70.00th=[ 518], 80.00th=[ 558], 90.00th=[ 625], 95.00th=[ 693], | 99.00th=[ 818], 99.50th=[ 894], 99.90th=[ 944], 99.95th=[ 995], | 99.99th=[ 995] bw ( KiB/s): min= 7, max= 127, per=24.91%, avg=42.35, stdev=20.78, samples=232 iops : min= 1, max= 31, avg=10.03, stdev= 5.22, samples=232 write: IOPS=11, BW=44.0KiB/s (45.1kB/s)(5192KiB/117895msec); 0 zone resets slat (usec): min=37, max=22429, avg=425.26, stdev=1302.93 clat (msec): min=215, max=1745, avg=980.01, stdev=244.08 lat (msec): min=216, max=1745, avg=980.44, stdev=244.04 clat percentiles (msec): | 1.00th=[ 456], 5.00th=[ 584], 10.00th=[ 667], 20.00th=[ 768], | 30.00th=[ 860], 40.00th=[ 927], 50.00th=[ 978], 60.00th=[ 1028], | 70.00th=[ 1083], 80.00th=[ 1167], 90.00th=[ 1301], 95.00th=[ 1401], | 99.00th=[ 1653], 99.50th=[ 1703], 99.90th=[ 1737], 99.95th=[ 1754], | 99.99th=[ 1754] bw ( KiB/s): min= 7, max= 119, per=24.62%, avg=43.58, stdev=19.16, samples=233 iops : min= 1, max= 29, avg=10.33, stdev= 4.81, samples=233 lat (msec) : 50=0.12%, 100=0.08%, 250=0.66%, 500=32.46%, 750=23.87% lat (msec) : 1000=19.65%, 2000=23.16% cpu : usr=0.10%, sys=0.69%, ctx=4387, 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=146512: Sun Sep 6 01:10:07 2026 read: IOPS=10, BW=42.4KiB/s (43.4kB/s)(4976KiB/117304msec) slat (usec): min=34, max=62000, avg=16033.62, stdev=8591.87 clat (msec): min=24, max=1057, avg=461.66, stdev=130.05 lat (msec): min=40, max=1078, avg=477.71, stdev=131.51 clat percentiles (msec): | 1.00th=[ 109], 5.00th=[ 284], 10.00th=[ 326], 20.00th=[ 359], | 30.00th=[ 388], 40.00th=[ 418], 50.00th=[ 451], 60.00th=[ 485], | 70.00th=[ 518], 80.00th=[ 558], 90.00th=[ 617], 95.00th=[ 693], | 99.00th=[ 852], 99.50th=[ 927], 99.90th=[ 1045], 99.95th=[ 1062], | 99.99th=[ 1062] bw ( KiB/s): min= 7, max= 120, per=24.93%, avg=42.38, stdev=20.06, samples=230 iops : min= 1, max= 30, avg=10.03, stdev= 5.05, samples=230 write: IOPS=11, BW=44.9KiB/s (45.0kB/s)(5264KiB/117304msec); 0 zone resets slat (usec): min=35, max=18796, avg=355.64, stdev=1070.29 clat (msec): min=199, max=2116, avg=973.22, stdev=254.32 lat (msec): min=210, max=2116, avg=973.58, stdev=254.28 clat percentiles (msec): | 1.00th=[ 292], 5.00th=[ 584], 10.00th=[ 651], 20.00th=[ 776], | 30.00th=[ 844], 40.00th=[ 919], 50.00th=[ 978], 60.00th=[ 1028], | 70.00th=[ 1083], 80.00th=[ 1167], 90.00th=[ 1284], 95.00th=[ 1385], | 99.00th=[ 1670], 99.50th=[ 1737], 99.90th=[ 2123], 99.95th=[ 2123], | 99.99th=[ 2123] bw ( KiB/s): min= 7, max= 107, per=25.05%, avg=44.34, stdev=21.15, samples=231 iops : min= 1, max= 26, avg=10.53, stdev= 5.33, samples=231 lat (msec) : 50=0.12%, 100=0.35%, 250=0.98%, 500=31.41%, 750=23.28% lat (msec) : 1000=20.47%, 2000=23.28%, >=2000=0.12% cpu : usr=0.11%, sys=0.66%, ctx=4309, 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=146513: Sun Sep 6 01:10:07 2026 read: IOPS=10, BW=42.3KiB/s (43.3kB/s)(4984KiB/117844msec) slat (usec): min=3645, max=63602, avg=16343.05, stdev=8804.04 clat (msec): min=15, max=997, avg=459.06, stdev=124.71 lat (msec): min=27, max=1035, avg=475.41, stdev=126.34 clat percentiles (msec): | 1.00th=[ 124], 5.00th=[ 284], 10.00th=[ 321], 20.00th=[ 363], | 30.00th=[ 397], 40.00th=[ 418], 50.00th=[ 447], 60.00th=[ 481], | 70.00th=[ 510], 80.00th=[ 550], 90.00th=[ 617], 95.00th=[ 684], | 99.00th=[ 827], 99.50th=[ 869], 99.90th=[ 995], 99.95th=[ 995], | 99.99th=[ 995] bw ( KiB/s): min= 7, max= 111, per=24.73%, avg=42.04, stdev=20.30, samples=232 iops : min= 1, max= 27, avg= 9.95, stdev= 5.08, samples=232 write: IOPS=11, BW=44.6KiB/s (45.7kB/s)(5256KiB/117844msec); 0 zone resets slat (usec): min=33, max=21282, avg=400.71, stdev=1147.86 clat (msec): min=252, max=1880, avg=980.91, stdev=243.74 lat (msec): min=252, max=1880, avg=981.31, stdev=243.76 clat percentiles (msec): | 1.00th=[ 430], 5.00th=[ 617], 10.00th=[ 667], 20.00th=[ 776], | 30.00th=[ 852], 40.00th=[ 919], 50.00th=[ 986], 60.00th=[ 1036], | 70.00th=[ 1083], 80.00th=[ 1167], 90.00th=[ 1284], 95.00th=[ 1401], | 99.00th=[ 1670], 99.50th=[ 1720], 99.90th=[ 1787], 99.95th=[ 1888], | 99.99th=[ 1888] bw ( KiB/s): min= 7, max= 110, per=24.93%, avg=44.13, stdev=17.97, samples=232 iops : min= 1, max= 27, avg=10.47, stdev= 4.54, samples=232 lat (msec) : 20=0.04%, 50=0.08%, 100=0.23%, 250=0.78%, 500=32.70% lat (msec) : 750=22.85%, 1000=18.95%, 2000=24.38% cpu : usr=0.12%, sys=0.67%, ctx=4571, 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=146514: Sun Sep 6 01:10:07 2026 read: IOPS=10, BW=43.1KiB/s (44.2kB/s)(5060KiB/117311msec) slat (usec): min=3139, max=53664, avg=16199.29, stdev=8551.63 clat (msec): min=9, max=1287, avg=454.10, stdev=128.96 lat (msec): min=25, max=1305, avg=470.31, stdev=129.92 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 284], 10.00th=[ 317], 20.00th=[ 359], | 30.00th=[ 388], 40.00th=[ 414], 50.00th=[ 439], 60.00th=[ 472], | 70.00th=[ 510], 80.00th=[ 550], 90.00th=[ 609], 95.00th=[ 676], | 99.00th=[ 802], 99.50th=[ 844], 99.90th=[ 1200], 99.95th=[ 1284], | 99.99th=[ 1284] bw ( KiB/s): min= 7, max= 111, per=25.59%, avg=43.50, stdev=19.55, samples=228 iops : min= 1, max= 27, avg=10.32, stdev= 4.90, samples=228 write: IOPS=11, BW=44.2KiB/s (45.2kB/s)(5180KiB/117311msec); 0 zone resets slat (usec): min=31, max=34155, avg=398.43, stdev=1411.37 clat (msec): min=114, max=2301, avg=985.59, stdev=260.22 lat (msec): min=115, max=2301, avg=985.99, stdev=260.25 clat percentiles (msec): | 1.00th=[ 439], 5.00th=[ 592], 10.00th=[ 667], 20.00th=[ 776], | 30.00th=[ 852], 40.00th=[ 911], 50.00th=[ 978], 60.00th=[ 1036], | 70.00th=[ 1099], 80.00th=[ 1183], 90.00th=[ 1301], 95.00th=[ 1418], | 99.00th=[ 1720], 99.50th=[ 1938], 99.90th=[ 2198], 99.95th=[ 2299], | 99.99th=[ 2299] bw ( KiB/s): min= 7, max= 102, per=24.88%, avg=44.04, stdev=18.57, samples=229 iops : min= 1, max= 25, avg=10.45, stdev= 4.64, samples=229 lat (msec) : 10=0.04%, 20=0.04%, 50=0.12%, 100=0.27%, 250=0.98% lat (msec) : 500=33.09%, 750=22.54%, 1000=19.77%, 2000=22.97%, >=2000=0.20% cpu : usr=0.11%, sys=0.67%, ctx=4264, 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=170KiB/s (174kB/s), 42.3KiB/s-43.1KiB/s (43.3kB/s-44.2kB/s), io=19.6MiB (20.5MB), run=117304-117895msec WRITE: bw=177KiB/s (181kB/s), 44.0KiB/s-44.9KiB/s (45.1kB/s-45.0kB/s), io=20.4MiB (21.4MB), run=117304-117895msec 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=146536: Sun Sep 6 01:10:17 2026 read: IOPS=1, BW=62.8MiB/s (65.8MB/s)(40.0MiB/637msec) slat (nsec): min=37360k, max=37360k, avg=37360038.00, stdev= 0.00 clat (nsec): min=566586k, max=566586k, avg=566586011.00, stdev= 0.00 lat (nsec): min=603951k, max=603951k, avg=603950596.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 567], 5.00th=[ 567], 10.00th=[ 567], 20.00th=[ 567], | 30.00th=[ 567], 40.00th=[ 567], 50.00th=[ 567], 60.00th=[ 567], | 70.00th=[ 567], 80.00th=[ 567], 90.00th=[ 567], 95.00th=[ 567], | 99.00th=[ 567], 99.50th=[ 567], 99.90th=[ 567], 99.95th=[ 567], | 99.99th=[ 567] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=1.73%, 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=62.8MiB/s (65.8MB/s), 62.8MiB/s-62.8MiB/s (65.8MB/s-65.8MB/s), io=40.0MiB (41.9MB), run=637-637msec 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