== sanity test 123aa: verify statahead work ============== 15:12:25 (1776193945)
striped dir -i1 -c2 -H all_char /mnt/lustre/d123aa.sanity
total: 100 open/close in 1.56 seconds: 63.97 ops/second
llite.lustre-ffff93a6c69ae000.statahead_max=0
101

real	0m1.392s
user	0m0.004s
sys	0m0.121s
ls -l 100 files without statahead: 2 sec
llite.lustre-ffff93a6c69ae000.statahead_max=32
32
101

real	0m0.351s
user	0m0.005s
sys	0m0.053s
ls -l 100 files with statahead: 1 sec
statahead total: 26
statahead wrong: 0
agl total: 26
 - open/close 702 (time 1776193965.95 total 10.01 last 70.12)
total: 900 open/close in 13.26 seconds: 67.87 ops/second
llite.lustre-ffff93a6c69ae000.statahead_max=0
1001

real	0m13.162s
user	0m0.017s
sys	0m1.111s
ls -l 1000 files without statahead: 13 sec
llite.lustre-ffff93a6c69ae000.statahead_max=32
32
1001

real	0m2.242s
user	0m0.018s
sys	0m0.415s
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/: 9 seconds
rm done
statahead total: 27
statahead wrong: 0
agl total: 27