== sanity test 123aa: verify statahead work ============== 06:22:41 (1781259761)
striped dir -i1 -c2 -H all_char /mnt/lustre/d123aa.sanity
total: 100 open/close in 1.29 seconds: 77.49 ops/second
llite.lustre-ffff8be990ecf800.statahead_max=0
101

real	0m1.087s
user	0m0.004s
sys	0m0.114s
ls -l 100 files without statahead: 1 sec
llite.lustre-ffff8be990ecf800.statahead_max=32
32
101

real	0m0.367s
user	0m0.003s
sys	0m0.045s
ls -l 100 files with statahead: 0 sec
statahead total: 26
statahead wrong: 0
agl total: 26
 - open/close 773 (time 1781259782.84 total 10.00 last 77.29)
total: 900 open/close in 11.84 seconds: 76.01 ops/second
llite.lustre-ffff8be990ecf800.statahead_max=0
1001

real	0m14.737s
user	0m0.023s
sys	0m1.057s
ls -l 1000 files without statahead: 14 sec
llite.lustre-ffff8be990ecf800.statahead_max=32
32
1001

real	0m3.278s
user	0m0.026s
sys	0m0.370s
ls -l 1000 files with statahead: 3 sec
statahead total: 27
statahead wrong: 0
agl total: 27
ls -l done
rm -r /mnt/lustre/d123aa.sanity/: 8 seconds
rm done
statahead total: 27
statahead wrong: 0
agl total: 27