== sanity test 123aa: verify statahead work ============== 18:15:55 (1776204955)
total: 100 open/close in 1.82 seconds: 54.82 ops/second
llite.lustre-ffff9f0447c2d800.statahead_max=0
101

real	0m2.036s
user	0m0.006s
sys	0m0.164s
ls -l 100 files without statahead: 2 sec
llite.lustre-ffff9f0447c2d800.statahead_max=32
32
101

real	0m0.452s
user	0m0.006s
sys	0m0.065s
ls -l 100 files with statahead: 0 sec
statahead total: 25
statahead wrong: 0
agl total: 25
 - open/close 714 (time 1776204977.27 total 10.01 last 71.33)
total: 900 open/close in 12.87 seconds: 69.92 ops/second
llite.lustre-ffff9f0447c2d800.statahead_max=0
1001

real	0m15.377s
user	0m0.031s
sys	0m1.186s
ls -l 1000 files without statahead: 16 sec
llite.lustre-ffff9f0447c2d800.statahead_max=32
32
1001

real	0m4.005s
user	0m0.025s
sys	0m0.470s
ls -l 1000 files with statahead: 4 sec
statahead total: 26
statahead wrong: 0
agl total: 26
ls -l done
rm -r /mnt/lustre/d123aa.sanity/: 11 seconds
rm done
statahead total: 26
statahead wrong: 0
agl total: 26