== sanity test 123ab: verify statahead work by using statx ========================================================== 09:19:29 (1774531169)
striped dir -i1 -c2 -H crush /mnt/lustre/d123ab.sanity
total: 100 open/close in 0.35 seconds: 286.96 ops/second
llite.lustre-ffff94fc8ad8d000.statahead_max=0
100

real	0m0.428s
user	0m0.012s
sys	0m0.085s
statx -l 100 files without statahead: 1 sec
llite.lustre-ffff94fc8ad8d000.statahead_max=32
32
100

real	0m0.281s
user	0m0.009s
sys	0m0.068s
statx -l 100 files with statahead: 1 sec
statahead total: 28
statahead wrong: 0
agl total: 28
total: 900 open/close in 3.12 seconds: 288.67 ops/second
llite.lustre-ffff94fc8ad8d000.statahead_max=0
1000

real	0m4.140s
user	0m0.078s
sys	0m0.751s
statx -l 1000 files without statahead: 4 sec
llite.lustre-ffff94fc8ad8d000.statahead_max=32
32
1000

real	0m0.753s
user	0m0.029s
sys	0m0.397s
statx -l 1000 files with statahead: 1 sec
statahead total: 29
statahead wrong: 0
agl total: 29
 - open/close 2559 (time 1774531194.51 total 10.00 last 255.83)
 - open/close 4796 (time 1774531204.51 total 20.00 last 223.65)
 - open/close 7682 (time 1774531214.51 total 30.01 last 288.58)
total: 9000 open/close in 33.54 seconds: 268.31 ops/second
llite.lustre-ffff94fc8ad8d000.statahead_max=0
10000

real	0m34.686s
user	0m0.631s
sys	0m7.390s
statx -l 10000 files without statahead: 35 sec
llite.lustre-ffff94fc8ad8d000.statahead_max=32
32
10000

real	0m6.871s
user	0m0.289s
sys	0m5.359s
statx -l 10000 files with statahead: 7 sec
statahead total: 30
statahead wrong: 0
agl total: 30
statx -l done
rm -r /mnt/lustre/d123ab.sanity/: 21 seconds
rm done
statahead total: 30
statahead wrong: 0
agl total: 30