== sanity test 123aa: verify statahead work ============== 18:40:43 (1736984443)
striped dir -i1 -c2 -H all_char /mnt/lustre/d123aa.sanity
total: 100 open/close in 0.89 seconds: 112.40 ops/second
llite.lustre-ffff8800b67a5000.statahead_max=0
101

real	0m0.859s
user	0m0.000s
sys	0m0.167s
ls -l 100 files without statahead: 1 sec
llite.lustre-ffff8800b67a5000.statahead_max=32
32
101

real	0m0.200s
user	0m0.010s
sys	0m0.044s
ls -l 100 files with statahead: 0 sec
statahead total: 27
statahead wrong: 0
agl total: 27
total: 900 open/close in 6.79 seconds: 132.61 ops/second
llite.lustre-ffff8800b67a5000.statahead_max=0
1001

real	0m6.660s
user	0m0.368s
sys	0m1.011s
ls -l 1000 files without statahead: 6 sec
llite.lustre-ffff8800b67a5000.statahead_max=32
32
1001

real	0m0.998s
user	0m0.031s
sys	0m0.311s
ls -l 1000 files with statahead: 1 sec
statahead total: 28
statahead wrong: 0
agl total: 28
ls -l done
rm -r /mnt/lustre/d123aa.sanity/: 4 seconds
rm done
statahead total: 28
statahead wrong: 0
agl total: 28