== sanity test 123ab: verify statahead work by using statx ========================================================== 15:59:37 (1776196777)
total: 100 open/close in 1.80 seconds: 55.68 ops/second
llite.lustre-ffff961c84ec0000.statahead_max=0
100

real	0m1.537s
user	0m0.006s
sys	0m0.119s
statx -l 100 files without statahead: 2 sec
llite.lustre-ffff961c84ec0000.statahead_max=32
32
100

real	0m0.575s
user	0m0.006s
sys	0m0.056s
statx -l 100 files with statahead: 1 sec
statahead total: 27
statahead wrong: 0
agl total: 27
 - open/close 620 (time 1776196799.37 total 10.00 last 61.98)
total: 900 open/close in 14.88 seconds: 60.47 ops/second
llite.lustre-ffff961c84ec0000.statahead_max=0
1000

real	0m16.823s
user	0m0.091s
sys	0m1.275s
statx -l 1000 files without statahead: 17 sec
llite.lustre-ffff961c84ec0000.statahead_max=32
32
1000

real	0m3.236s
user	0m0.045s
sys	0m0.424s
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/: 10 seconds
rm done
statahead total: 28
statahead wrong: 0
agl total: 28