== sanity test 123ab: verify statahead work by using statx ========================================================== 10:18:07 (1761315487)
striped dir -i1 -c2 -H crush /mnt/lustre/d123ab.sanity
total: 100 open/close in 1.49 seconds: 67.25 ops/second
llite.lustre-ffff8c664913d000.statahead_max=0
100

real	0m1.239s
user	0m0.008s
sys	0m0.138s
statx -l 100 files without statahead: 1 sec
llite.lustre-ffff8c664913d000.statahead_max=32
32
100

real	0m0.346s
user	0m0.004s
sys	0m0.063s
statx -l 100 files with statahead: 0 sec
statahead total: 28
statahead wrong: 0
agl total: 28
total: 900 open/close in 9.06 seconds: 99.39 ops/second
llite.lustre-ffff8c664913d000.statahead_max=0
1000

real	0m10.436s
user	0m0.084s
sys	0m1.170s
statx -l 1000 files without statahead: 11 sec
llite.lustre-ffff8c664913d000.statahead_max=32
32
1000

real	0m1.426s
user	0m0.037s
sys	0m0.347s
statx -l 1000 files with statahead: 1 sec
statahead total: 29
statahead wrong: 0
agl total: 29
statx -l done
rm -r /mnt/lustre/d123ab.sanity/: 7 seconds
rm done
statahead total: 29
statahead wrong: 0
agl total: 29