== sanity test 123ab: verify statahead work by using statx ========================================================== 06:23:49 (1781259829)
striped dir -i1 -c2 -H fnv_1a_64 /mnt/lustre/d123ab.sanity
total: 100 open/close in 1.42 seconds: 70.43 ops/second
llite.lustre-ffff8be990ecf800.statahead_max=0
100

real	0m1.264s
user	0m0.009s
sys	0m0.119s
statx -l 100 files without statahead: 1 sec
llite.lustre-ffff8be990ecf800.statahead_max=32
32
100

real	0m0.490s
user	0m0.004s
sys	0m0.036s
statx -l 100 files with statahead: 1 sec
statahead total: 28
statahead wrong: 0
agl total: 28
 - open/close 681 (time 1781259853.02 total 10.01 last 68.06)
total: 900 open/close in 14.31 seconds: 62.88 ops/second
llite.lustre-ffff8be990ecf800.statahead_max=0
1000

real	0m18.035s
user	0m0.078s
sys	0m1.067s
statx -l 1000 files without statahead: 18 sec
llite.lustre-ffff8be990ecf800.statahead_max=32
32
1000

real	0m4.968s
user	0m0.045s
sys	0m0.430s
statx -l 1000 files with statahead: 5 sec
statahead total: 29
statahead wrong: 0
agl total: 29
statx -l done
rm -r /mnt/lustre/d123ab.sanity/: 9 seconds
rm done
statahead total: 29
statahead wrong: 0
agl total: 29