== sanity test 123ab: verify statahead work by using statx ========================================================== 18:33:02 (1776205982)
striped dir -i1 -c2 -H crush /mnt/lustre/d123ab.sanity
total: 100 open/close in 2.05 seconds: 48.89 ops/second
llite.lustre-ffff926a07911000.statahead_max=0
100

real	0m1.478s
user	0m0.008s
sys	0m0.125s
statx -l 100 files without statahead: 2 sec
llite.lustre-ffff926a07911000.statahead_max=32
32
100

real	0m0.470s
user	0m0.004s
sys	0m0.057s
statx -l 100 files with statahead: 0 sec
statahead total: 28
statahead wrong: 0
agl total: 28
 - open/close 625 (time 1776206004.68 total 10.01 last 62.45)
total: 900 open/close in 14.14 seconds: 63.63 ops/second
llite.lustre-ffff926a07911000.statahead_max=0
1000

real	0m16.547s
user	0m0.099s
sys	0m1.294s
statx -l 1000 files without statahead: 16 sec
llite.lustre-ffff926a07911000.statahead_max=32
32
1000

real	0m3.229s
user	0m0.044s
sys	0m0.378s
statx -l 1000 files with statahead: 3 sec
statahead total: 29
statahead wrong: 0
agl total: 29
statx -l done
rm -r /mnt/lustre/d123ab.sanity/: 11 seconds
rm done
statahead total: 29
statahead wrong: 0
agl total: 29