== sanity test 123ab: verify statahead work by using statx ========================================================== 21:20:46 (1780968046)
total: 100 open/close in 1.48 seconds: 67.55 ops/second
llite.lustre-ffff8ec6472a5800.statahead_max=0
100

real	0m1.443s
user	0m0.010s
sys	0m0.115s
statx -l 100 files without statahead: 1 sec
llite.lustre-ffff8ec6472a5800.statahead_max=32
32
100

real	0m0.374s
user	0m0.008s
sys	0m0.050s
statx -l 100 files with statahead: 1 sec
statahead total: 27
statahead wrong: 0
agl total: 27
 - open/close 741 (time 1780968068.00 total 10.02 last 73.95)
total: 900 open/close in 12.38 seconds: 72.70 ops/second
llite.lustre-ffff8ec6472a5800.statahead_max=0
1000

real	0m12.205s
user	0m0.076s
sys	0m1.048s
statx -l 1000 files without statahead: 12 sec
llite.lustre-ffff8ec6472a5800.statahead_max=32
32
1000

real	0m3.450s
user	0m0.056s
sys	0m0.337s
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