== sanity test 398c: run fio to test AIO ================= 14:00:42 (1789063242) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.793052 s, 52.9 MB/s osc.lustre-OST0000-osc-ffff941651be7000.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=146860: Thu Sep 10 14:03:56 2026 write: IOPS=14, BW=56.1KiB/s (57.5kB/s)(10.0MiB/182390msec); 0 zone resets slat (usec): min=50, max=19240, avg=338.73, stdev=1109.02 clat (msec): min=160, max=2242, avg=1139.15, stdev=318.31 lat (msec): min=161, max=2242, avg=1139.49, stdev=318.30 clat percentiles (msec): | 1.00th=[ 502], 5.00th=[ 684], 10.00th=[ 760], 20.00th=[ 860], | 30.00th=[ 944], 40.00th=[ 1028], 50.00th=[ 1099], 60.00th=[ 1200], | 70.00th=[ 1301], 80.00th=[ 1435], 90.00th=[ 1569], 95.00th=[ 1687], | 99.00th=[ 1905], 99.50th=[ 2039], 99.90th=[ 2232], 99.95th=[ 2232], | 99.99th=[ 2232] bw ( KiB/s): min= 7, max= 128, per=26.31%, avg=58.94, stdev=31.56, samples=341 iops : min= 1, max= 32, avg=14.22, stdev= 7.89, samples=341 lat (msec) : 250=0.62%, 750=9.06%, 1000=26.88%, 2000=62.85%, >=2000=0.59% cpu : usr=0.04%, sys=0.27%, ctx=1814, 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=146861: Thu Sep 10 14:03:56 2026 write: IOPS=14, BW=56.1KiB/s (57.5kB/s)(10.0MiB/182389msec); 0 zone resets slat (usec): min=50, max=20706, avg=395.68, stdev=1159.35 clat (msec): min=154, max=2239, avg=1138.46, stdev=314.74 lat (msec): min=155, max=2240, avg=1138.86, stdev=314.73 clat percentiles (msec): | 1.00th=[ 535], 5.00th=[ 676], 10.00th=[ 768], 20.00th=[ 869], | 30.00th=[ 944], 40.00th=[ 1020], 50.00th=[ 1099], 60.00th=[ 1200], | 70.00th=[ 1318], 80.00th=[ 1435], 90.00th=[ 1552], 95.00th=[ 1670], | 99.00th=[ 1888], 99.50th=[ 1955], 99.90th=[ 2232], 99.95th=[ 2232], | 99.99th=[ 2232] bw ( KiB/s): min= 7, max= 135, per=25.71%, avg=57.58, stdev=29.92, samples=349 iops : min= 1, max= 33, avg=13.88, stdev= 7.52, samples=349 lat (msec) : 250=0.74%, 500=0.04%, 750=7.70%, 1000=28.98%, 2000=62.11% lat (msec) : >=2000=0.43% cpu : usr=0.05%, sys=0.29%, ctx=2256, 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=146862: Thu Sep 10 14:03:56 2026 write: IOPS=14, BW=56.3KiB/s (57.6kB/s)(10.0MiB/182037msec); 0 zone resets slat (usec): min=49, max=23812, avg=342.59, stdev=1218.11 clat (msec): min=188, max=2288, avg=1136.46, stdev=319.95 lat (msec): min=189, max=2288, avg=1136.80, stdev=319.97 clat percentiles (msec): | 1.00th=[ 493], 5.00th=[ 659], 10.00th=[ 760], 20.00th=[ 869], | 30.00th=[ 936], 40.00th=[ 1020], 50.00th=[ 1116], 60.00th=[ 1200], | 70.00th=[ 1318], 80.00th=[ 1418], 90.00th=[ 1552], 95.00th=[ 1670], | 99.00th=[ 1955], 99.50th=[ 2198], 99.90th=[ 2232], 99.95th=[ 2232], | 99.99th=[ 2299] bw ( KiB/s): min= 7, max= 128, per=25.25%, avg=56.57, stdev=29.21, samples=355 iops : min= 1, max= 32, avg=13.63, stdev= 7.32, samples=355 lat (msec) : 250=0.62%, 500=0.90%, 750=7.97%, 1000=28.01%, 2000=61.76% lat (msec) : >=2000=0.74% cpu : usr=0.04%, sys=0.28%, ctx=2132, 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=146863: Thu Sep 10 14:03:56 2026 write: IOPS=14, BW=56.1KiB/s (57.5kB/s)(10.0MiB/182385msec); 0 zone resets slat (usec): min=50, max=21297, avg=365.28, stdev=1122.26 clat (msec): min=138, max=2243, avg=1138.53, stdev=311.19 lat (msec): min=139, max=2243, avg=1138.90, stdev=311.19 clat percentiles (msec): | 1.00th=[ 439], 5.00th=[ 693], 10.00th=[ 768], 20.00th=[ 869], | 30.00th=[ 953], 40.00th=[ 1020], 50.00th=[ 1099], 60.00th=[ 1200], | 70.00th=[ 1318], 80.00th=[ 1418], 90.00th=[ 1552], 95.00th=[ 1670], | 99.00th=[ 1921], 99.50th=[ 1972], 99.90th=[ 2165], 99.95th=[ 2232], | 99.99th=[ 2232] bw ( KiB/s): min= 7, max= 207, per=25.27%, avg=56.61, stdev=32.56, samples=355 iops : min= 1, max= 51, avg=13.63, stdev= 8.14, samples=355 lat (msec) : 250=0.08%, 500=1.48%, 750=7.30%, 1000=27.46%, 2000=63.36% lat (msec) : >=2000=0.31% cpu : usr=0.04%, sys=0.29%, ctx=2481, 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=225KiB/s (230kB/s), 56.1KiB/s-56.3KiB/s (57.5kB/s-57.6kB/s), io=40.0MiB (41.9MB), run=182037-182390msec 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=146911: Thu Sep 10 14:06:04 2026 read: IOPS=10, BW=42.7KiB/s (43.8kB/s)(5048KiB/118093msec) slat (usec): min=3603, max=73271, avg=16107.72, stdev=8313.38 clat (msec): min=24, max=889, avg=458.39, stdev=115.02 lat (msec): min=32, max=916, avg=474.51, stdev=116.02 clat percentiles (msec): | 1.00th=[ 213], 5.00th=[ 296], 10.00th=[ 330], 20.00th=[ 372], | 30.00th=[ 397], 40.00th=[ 422], 50.00th=[ 451], 60.00th=[ 472], | 70.00th=[ 502], 80.00th=[ 542], 90.00th=[ 600], 95.00th=[ 651], | 99.00th=[ 793], 99.50th=[ 835], 99.90th=[ 885], 99.95th=[ 894], | 99.99th=[ 894] bw ( KiB/s): min= 7, max= 119, per=25.12%, avg=42.45, stdev=20.26, samples=232 iops : min= 1, max= 29, avg=10.06, stdev= 5.12, samples=232 write: IOPS=10, BW=43.0KiB/s (45.0kB/s)(5192KiB/118093msec); 0 zone resets slat (usec): min=59, max=14330, avg=514.90, stdev=1195.28 clat (msec): min=237, max=1914, avg=990.68, stdev=235.37 lat (msec): min=237, max=1914, avg=991.20, stdev=235.32 clat percentiles (msec): | 1.00th=[ 439], 5.00th=[ 575], 10.00th=[ 684], 20.00th=[ 802], | 30.00th=[ 877], 40.00th=[ 936], 50.00th=[ 995], 60.00th=[ 1062], | 70.00th=[ 1116], 80.00th=[ 1183], 90.00th=[ 1267], 95.00th=[ 1334], | 99.00th=[ 1620], 99.50th=[ 1754], 99.90th=[ 1888], 99.95th=[ 1921], | 99.99th=[ 1921] bw ( KiB/s): min= 7, max= 104, per=24.91%, avg=43.84, stdev=19.35, samples=231 iops : min= 1, max= 26, avg=10.41, stdev= 4.83, samples=231 lat (msec) : 50=0.08%, 100=0.23%, 250=0.47%, 500=34.80%, 750=20.23% lat (msec) : 1000=19.18%, 2000=25.00% cpu : usr=0.11%, sys=0.74%, ctx=4635, 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=146912: Thu Sep 10 14:06:04 2026 read: IOPS=10, BW=42.3KiB/s (43.3kB/s)(4976KiB/117690msec) slat (usec): min=68, max=63045, avg=15590.03, stdev=8286.09 clat (msec): min=22, max=893, avg=456.79, stdev=114.66 lat (msec): min=36, max=910, avg=472.39, stdev=115.94 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 300], 10.00th=[ 330], 20.00th=[ 372], | 30.00th=[ 401], 40.00th=[ 426], 50.00th=[ 451], 60.00th=[ 472], | 70.00th=[ 502], 80.00th=[ 542], 90.00th=[ 600], 95.00th=[ 651], | 99.00th=[ 802], 99.50th=[ 844], 99.90th=[ 885], 99.95th=[ 894], | 99.99th=[ 894] bw ( KiB/s): min= 7, max= 104, per=24.59%, avg=41.56, stdev=19.57, samples=234 iops : min= 1, max= 26, avg= 9.84, stdev= 4.93, samples=234 write: IOPS=11, BW=44.7KiB/s (45.8kB/s)(5264KiB/117690msec); 0 zone resets slat (usec): min=53, max=21393, avg=490.57, stdev=1211.72 clat (msec): min=181, max=1878, avg=982.87, stdev=234.24 lat (msec): min=181, max=1880, avg=983.37, stdev=234.19 clat percentiles (msec): | 1.00th=[ 384], 5.00th=[ 575], 10.00th=[ 684], 20.00th=[ 802], | 30.00th=[ 869], 40.00th=[ 936], 50.00th=[ 986], 60.00th=[ 1045], | 70.00th=[ 1116], 80.00th=[ 1167], 90.00th=[ 1267], 95.00th=[ 1351], | 99.00th=[ 1569], 99.50th=[ 1636], 99.90th=[ 1804], 99.95th=[ 1871], | 99.99th=[ 1871] bw ( KiB/s): min= 7, max= 102, per=25.05%, avg=44.09, stdev=20.21, samples=233 iops : min= 1, max= 25, avg=10.47, stdev= 5.06, samples=233 lat (msec) : 50=0.23%, 100=0.27%, 250=0.43%, 500=34.26%, 750=20.27% lat (msec) : 1000=20.12%, 2000=24.41% cpu : usr=0.09%, sys=0.74%, ctx=4893, 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=146913: Thu Sep 10 14:06:04 2026 read: IOPS=10, BW=42.3KiB/s (43.3kB/s)(4984KiB/117927msec) slat (usec): min=3038, max=76229, avg=16236.23, stdev=8541.99 clat (msec): min=13, max=950, avg=454.86, stdev=115.98 lat (msec): min=24, max=977, avg=471.11, stdev=116.89 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 296], 10.00th=[ 330], 20.00th=[ 368], | 30.00th=[ 401], 40.00th=[ 422], 50.00th=[ 447], 60.00th=[ 472], | 70.00th=[ 506], 80.00th=[ 542], 90.00th=[ 600], 95.00th=[ 642], | 99.00th=[ 776], 99.50th=[ 793], 99.90th=[ 852], 99.95th=[ 953], | 99.99th=[ 953] bw ( KiB/s): min= 7, max= 120, per=25.02%, avg=42.29, stdev=19.21, samples=231 iops : min= 1, max= 30, avg=10.01, stdev= 4.84, samples=231 write: IOPS=11, BW=44.6KiB/s (45.6kB/s)(5256KiB/117927msec); 0 zone resets slat (usec): min=60, max=13475, avg=493.89, stdev=1152.63 clat (msec): min=409, max=1884, avg=985.30, stdev=226.06 lat (msec): min=409, max=1885, avg=985.80, stdev=225.99 clat percentiles (msec): | 1.00th=[ 493], 5.00th=[ 584], 10.00th=[ 693], 20.00th=[ 802], | 30.00th=[ 869], 40.00th=[ 936], 50.00th=[ 995], 60.00th=[ 1045], | 70.00th=[ 1116], 80.00th=[ 1183], 90.00th=[ 1267], 95.00th=[ 1334], | 99.00th=[ 1536], 99.50th=[ 1670], 99.90th=[ 1770], 99.95th=[ 1888], | 99.99th=[ 1888] bw ( KiB/s): min= 7, max= 103, per=24.97%, avg=43.94, stdev=18.97, samples=233 iops : min= 1, max= 25, avg=10.43, stdev= 4.75, samples=233 lat (msec) : 20=0.08%, 50=0.12%, 100=0.39%, 250=0.51%, 500=33.09% lat (msec) : 750=21.48%, 1000=19.49%, 2000=24.84% cpu : usr=0.10%, sys=0.74%, ctx=4957, 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=146914: Thu Sep 10 14:06:04 2026 read: IOPS=10, BW=43.1KiB/s (44.1kB/s)(5060KiB/117414msec) slat (usec): min=3252, max=60627, avg=16253.15, stdev=8523.77 clat (msec): min=37, max=974, avg=455.92, stdev=109.89 lat (msec): min=47, max=995, avg=472.18, stdev=110.88 clat percentiles (msec): | 1.00th=[ 249], 5.00th=[ 300], 10.00th=[ 330], 20.00th=[ 372], | 30.00th=[ 397], 40.00th=[ 426], 50.00th=[ 451], 60.00th=[ 477], | 70.00th=[ 502], 80.00th=[ 535], 90.00th=[ 592], 95.00th=[ 634], | 99.00th=[ 810], 99.50th=[ 835], 99.90th=[ 902], 99.95th=[ 978], | 99.99th=[ 978] bw ( KiB/s): min= 7, max= 104, per=25.41%, avg=42.95, stdev=20.16, samples=231 iops : min= 1, max= 26, avg=10.18, stdev= 5.07, samples=231 write: IOPS=11, BW=44.1KiB/s (45.2kB/s)(5180KiB/117414msec); 0 zone resets slat (usec): min=60, max=17190, avg=482.39, stdev=1297.02 clat (msec): min=371, max=1952, avg=986.24, stdev=234.62 lat (msec): min=371, max=1952, avg=986.73, stdev=234.63 clat percentiles (msec): | 1.00th=[ 493], 5.00th=[ 584], 10.00th=[ 684], 20.00th=[ 785], | 30.00th=[ 869], 40.00th=[ 927], 50.00th=[ 986], 60.00th=[ 1036], | 70.00th=[ 1116], 80.00th=[ 1183], 90.00th=[ 1267], 95.00th=[ 1334], | 99.00th=[ 1670], 99.50th=[ 1871], 99.90th=[ 1905], 99.95th=[ 1955], | 99.99th=[ 1955] bw ( KiB/s): min= 8, max= 111, per=24.82%, avg=43.68, stdev=18.39, samples=231 iops : min= 2, max= 27, avg=10.36, stdev= 4.57, samples=231 lat (msec) : 50=0.08%, 100=0.16%, 250=0.31%, 500=34.80%, 750=21.29% lat (msec) : 1000=18.95%, 2000=24.41% cpu : usr=0.09%, sys=0.75%, ctx=4658, 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=170KiB/s (174kB/s), 42.3KiB/s-43.1KiB/s (43.3kB/s-44.1kB/s), io=19.6MiB (20.5MB), run=117414-118093msec WRITE: bw=177KiB/s (181kB/s), 43.0KiB/s-44.7KiB/s (45.0kB/s-45.8kB/s), io=20.4MiB (21.4MB), run=117414-118093msec 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=146936: Thu Sep 10 14:06:13 2026 read: IOPS=1, BW=55.8MiB/s (58.5MB/s)(40.0MiB/717msec) slat (nsec): min=82742k, max=82742k, avg=82741814.00, stdev= 0.00 clat (nsec): min=604805k, max=604805k, avg=604805157.00, stdev= 0.00 lat (nsec): min=687551k, max=687551k, avg=687551309.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 609], 5.00th=[ 609], 10.00th=[ 609], 20.00th=[ 609], | 30.00th=[ 609], 40.00th=[ 609], 50.00th=[ 609], 60.00th=[ 609], | 70.00th=[ 609], 80.00th=[ 609], 90.00th=[ 609], 95.00th=[ 609], | 99.00th=[ 609], 99.50th=[ 609], 99.90th=[ 609], 99.95th=[ 609], | 99.99th=[ 609] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=1.82%, ctx=8, majf=0, minf=7 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=55.8MiB/s (58.5MB/s), 55.8MiB/s-55.8MiB/s (58.5MB/s-58.5MB/s), io=40.0MiB (41.9MB), run=717-717msec 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