== sanity test 123ab: verify statahead work by using statx ========================================================== 17:02:41 (1776200561)
total: 100 open/close in 1.42 seconds: 70.18 ops/second
llite.lustre-ffff8d07cb14e800.statahead_max=0
100

real	0m1.088s
user	0m0.003s
sys	0m0.121s
statx -l 100 files without statahead: 1 sec
llite.lustre-ffff8d07cb14e800.statahead_max=32
32
100

real	0m0.371s
user	0m0.007s
sys	0m0.038s
statx -l 100 files with statahead: 1 sec
statahead total: 27
statahead wrong: 0
agl total: 27
 - open/close 787 (time 1776200581.36 total 10.01 last 78.64)
total: 900 open/close in 11.75 seconds: 76.59 ops/second
llite.lustre-ffff8d07cb14e800.statahead_max=0
1000

real	0m11.324s
user	0m0.069s
sys	0m0.997s
statx -l 1000 files without statahead: 11 sec
llite.lustre-ffff8d07cb14e800.statahead_max=32
32
1000

real	0m3.730s
user	0m0.046s
sys	0m0.365s
statx -l 1000 files with statahead: 3 sec
statahead total: 28
statahead wrong: 0
agl total: 28
statx -l done
rm -r /mnt/lustre/d123ab.sanity/: 9 seconds
rm done
statahead total: 28
statahead wrong: 0
agl total: 28