== sanity test 123aa: verify statahead work ============== 08:19:17 (1764940757)
total: 100 open/close in 0.64 seconds: 155.59 ops/second
llite.lustre-ffff89b7885f2800.statahead_max=0
101

real	0m0.832s
user	0m0.008s
sys	0m0.116s
ls -l 100 files without statahead: 0 sec
llite.lustre-ffff89b7885f2800.statahead_max=32
32
101

real	0m0.177s
user	0m0.005s
sys	0m0.056s
ls -l 100 files with statahead: 0 sec
statahead total: 25
statahead wrong: 0
agl total: 25
total: 900 open/close in 6.01 seconds: 149.71 ops/second
llite.lustre-ffff89b7885f2800.statahead_max=0
1001

real	0m7.028s
user	0m0.039s
sys	0m1.061s
ls -l 1000 files without statahead: 7 sec
llite.lustre-ffff89b7885f2800.statahead_max=32
32
1001

real	0m0.850s
user	0m0.016s
sys	0m0.448s
ls -l 1000 files with statahead: 1 sec
statahead total: 26
statahead wrong: 0
agl total: 26
ls -l done
rm -r /mnt/lustre/d123aa.sanity/: 4 seconds
rm done
statahead total: 26
statahead wrong: 0
agl total: 26