== sanity test 123aa: verify statahead work ============== 16:46:12 (1776199572)
striped dir -i1 -c2 -H crush /mnt/lustre/d123aa.sanity
total: 100 open/close in 1.13 seconds: 88.87 ops/second
llite.lustre-ffff9f3504404000.statahead_max=0
101

real	0m0.902s
user	0m0.004s
sys	0m0.111s
ls -l 100 files without statahead: 1 sec
llite.lustre-ffff9f3504404000.statahead_max=32
32
101

real	0m0.313s
user	0m0.001s
sys	0m0.056s
ls -l 100 files with statahead: 0 sec
statahead total: 26
statahead wrong: 0
agl total: 26
total: 900 open/close in 9.84 seconds: 91.44 ops/second
llite.lustre-ffff9f3504404000.statahead_max=0
1001

real	0m9.131s
user	0m0.027s
sys	0m0.987s
ls -l 1000 files without statahead: 9 sec
llite.lustre-ffff9f3504404000.statahead_max=32
32
1001

real	0m1.529s
user	0m0.016s
sys	0m0.329s
ls -l 1000 files with statahead: 2 sec
statahead total: 27
statahead wrong: 0
agl total: 27
ls -l done
rm -r /mnt/lustre/d123aa.sanity/: 7 seconds
rm done
statahead total: 27
statahead wrong: 0
agl total: 27