== sanity test 123aa: verify statahead work ============== 18:24:16 (1781303056)
striped dir -i1 -c2 -H crush /mnt/lustre/d123aa.sanity
total: 100 open/close in 1.32 seconds: 75.55 ops/second
llite.lustre-ffff8b9784a3e800.statahead_max=0
101

real	0m1.261s
user	0m0.004s
sys	0m0.124s
ls -l 100 files without statahead: 2 sec
llite.lustre-ffff8b9784a3e800.statahead_max=32
32
101

real	0m0.513s
user	0m0.003s
sys	0m0.065s
ls -l 100 files with statahead: 0 sec
statahead total: 26
statahead wrong: 0
agl total: 26
 - open/close 708 (time 1781303078.40 total 10.01 last 70.71)
total: 900 open/close in 12.93 seconds: 69.61 ops/second
llite.lustre-ffff8b9784a3e800.statahead_max=0
1001

real	0m16.478s
user	0m0.025s
sys	0m1.173s
ls -l 1000 files without statahead: 16 sec
llite.lustre-ffff8b9784a3e800.statahead_max=32
32
1001

real	0m2.489s
user	0m0.021s
sys	0m0.382s
ls -l 1000 files with statahead: 2 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