== sanity test 123aa: verify statahead work ============== 18:37:38 (1736984258)
total: 100 open/close in 0.89 seconds: 112.48 ops/second
llite.lustre-ffff880085369800.statahead_max=0
101

real	0m0.804s
user	0m0.003s
sys	0m0.156s
ls -l 100 files without statahead: 1 sec
llite.lustre-ffff880085369800.statahead_max=32
32
101

real	0m0.239s
user	0m0.007s
sys	0m0.048s
ls -l 100 files with statahead: 0 sec
statahead total: 26
statahead wrong: 0
agl total: 26
total: 900 open/close in 6.52 seconds: 138.08 ops/second
llite.lustre-ffff880085369800.statahead_max=0
1001

real	0m5.879s
user	0m0.225s
sys	0m0.969s
ls -l 1000 files without statahead: 6 sec
llite.lustre-ffff880085369800.statahead_max=32
32
1001

real	0m0.934s
user	0m0.023s
sys	0m0.300s
ls -l 1000 files with statahead: 1 sec
statahead total: 27
statahead wrong: 0
agl total: 27
ls -l done
rm -r /mnt/lustre/d123aa.sanity/: 5 seconds
rm done
statahead total: 27
statahead wrong: 0
agl total: 27