== sanity test 123ab: verify statahead work by using statx ========================================================== 06:15:10 (1781259310)
total: 100 open/close in 1.41 seconds: 70.71 ops/second
llite.lustre-ffff9b8a11542800.statahead_max=0
100

real	0m1.312s
user	0m0.008s
sys	0m0.127s
statx -l 100 files without statahead: 1 sec
llite.lustre-ffff9b8a11542800.statahead_max=32
32
100

real	0m0.344s
user	0m0.003s
sys	0m0.055s
statx -l 100 files with statahead: 0 sec
statahead total: 27
statahead wrong: 0
agl total: 27
 - open/close 770 (time 1781259330.63 total 10.02 last 76.87)
total: 900 open/close in 11.73 seconds: 76.71 ops/second
llite.lustre-ffff9b8a11542800.statahead_max=0
1000

real	0m11.691s
user	0m0.092s
sys	0m1.065s
statx -l 1000 files without statahead: 11 sec
llite.lustre-ffff9b8a11542800.statahead_max=32
32
1000

real	0m2.649s
user	0m0.041s
sys	0m0.357s
statx -l 1000 files with statahead: 2 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