== sanity test 123aa: verify statahead work ============== 18:06:05 (1717020365)
total: 100 open/close in 0.78 seconds: 128.36 ops/second
llite.lustre-ffff88008520b000.statahead_max=0
101

real	0m0.922s
user	0m0.000s
sys	0m0.179s
ls -l 100 files without statahead: 1 sec
llite.lustre-ffff88008520b000.statahead_max=32
32
101

real	0m0.207s
user	0m0.010s
sys	0m0.036s
ls -l 100 files with statahead: 1 sec
statahead total: 26
statahead wrong: 0
agl total: 26
total: 900 open/close in 7.78 seconds: 115.71 ops/second
llite.lustre-ffff88008520b000.statahead_max=0
1001

real	0m7.826s
user	0m0.219s
sys	0m1.302s
ls -l 1000 files without statahead: 8 sec
llite.lustre-ffff88008520b000.statahead_max=32
32
1001

real	0m1.224s
user	0m0.022s
sys	0m0.333s
ls -l 1000 files with statahead: 1 sec
statahead total: 27
statahead wrong: 0
agl total: 27
ls -l done
rm -r /mnt/lustre/d123aa.sanity/: 4 seconds
rm done
statahead total: 27
statahead wrong: 0
agl total: 27