== sanity test 123aa: verify statahead work ============== 14:35:01 (1776191701)
total: 100 open/close in 1.42 seconds: 70.51 ops/second
llite.lustre-ffff9df702dca000.statahead_max=0
101

real	0m1.277s
user	0m0.004s
sys	0m0.110s
ls -l 100 files without statahead: 2 sec
llite.lustre-ffff9df702dca000.statahead_max=32
32
101

real	0m0.314s
user	0m0.003s
sys	0m0.053s
ls -l 100 files with statahead: 1 sec
statahead total: 25
statahead wrong: 0
agl total: 25
 - open/close 782 (time 1776191721.46 total 10.02 last 78.07)
total: 900 open/close in 11.54 seconds: 77.96 ops/second
llite.lustre-ffff9df702dca000.statahead_max=0
1001

real	0m10.142s
user	0m0.027s
sys	0m1.011s
ls -l 1000 files without statahead: 10 sec
llite.lustre-ffff9df702dca000.statahead_max=32
32
1001

real	0m1.984s
user	0m0.012s
sys	0m0.395s
ls -l 1000 files with statahead: 2 sec
statahead total: 26
statahead wrong: 0
agl total: 26
ls -l done
rm -r /mnt/lustre/d123aa.sanity/: 6 seconds
rm done
statahead total: 26
statahead wrong: 0
agl total: 26