== sanity test 123ab: verify statahead work by using statx ========================================================== 08:19:47 (1764940787)
total: 100 open/close in 0.79 seconds: 126.70 ops/second
llite.lustre-ffff89b7885f2800.statahead_max=0
100

real	0m0.758s
user	0m0.011s
sys	0m0.117s
statx -l 100 files without statahead: 0 sec
llite.lustre-ffff89b7885f2800.statahead_max=32
32
100

real	0m0.167s
user	0m0.006s
sys	0m0.050s
statx -l 100 files with statahead: 0 sec
statahead total: 27
statahead wrong: 0
agl total: 27
total: 900 open/close in 6.12 seconds: 147.09 ops/second
llite.lustre-ffff89b7885f2800.statahead_max=0
1000

real	0m7.326s
user	0m0.082s
sys	0m1.071s
statx -l 1000 files without statahead: 8 sec
llite.lustre-ffff89b7885f2800.statahead_max=32
32
1000

real	0m0.959s
user	0m0.028s
sys	0m0.390s
statx -l 1000 files with statahead: 1 sec
statahead total: 28
statahead wrong: 0
agl total: 28
statx -l done
rm -r /mnt/lustre/d123ab.sanity/: 3 seconds
rm done
statahead total: 28
statahead wrong: 0
agl total: 28