== sanity test 123aa: verify statahead work ============== 18:41:16 (1736984476)
total: 100 open/close in 0.75 seconds: 132.63 ops/second
llite.lustre-ffff88012a562000.statahead_max=0
101

real	0m0.693s
user	0m0.003s
sys	0m0.151s
ls -l 100 files without statahead: 0 sec
llite.lustre-ffff88012a562000.statahead_max=32
32
101

real	0m0.240s
user	0m0.003s
sys	0m0.064s
ls -l 100 files with statahead: 0 sec
statahead total: 26
statahead wrong: 0
agl total: 26
total: 900 open/close in 6.23 seconds: 144.54 ops/second
llite.lustre-ffff88012a562000.statahead_max=0
1001

real	0m7.012s
user	0m0.385s
sys	0m1.061s
ls -l 1000 files without statahead: 7 sec
llite.lustre-ffff88012a562000.statahead_max=32
32
1001

real	0m0.885s
user	0m0.032s
sys	0m0.303s
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/: 4 seconds
rm done
statahead total: 27
statahead wrong: 0
agl total: 27