== sanity test 123aa: verify statahead work ============== 21:30:59 (1780968659)
striped dir -i1 -c2 -H crush /mnt/lustre/d123aa.sanity
total: 100 open/close in 1.37 seconds: 73.05 ops/second
llite.lustre-ffff92984a1c5000.statahead_max=0
101

real	0m1.621s
user	0m0.007s
sys	0m0.147s
ls -l 100 files without statahead: 2 sec
llite.lustre-ffff92984a1c5000.statahead_max=32
32
101

real	0m0.461s
user	0m0.005s
sys	0m0.057s
ls -l 100 files with statahead: 1 sec
statahead total: 26
statahead wrong: 0
agl total: 26
 - open/close 697 (time 1780968682.46 total 10.01 last 69.63)
total: 900 open/close in 13.62 seconds: 66.06 ops/second
llite.lustre-ffff92984a1c5000.statahead_max=0
1001

real	0m16.187s
user	0m0.040s
sys	0m1.351s
ls -l 1000 files without statahead: 17 sec
llite.lustre-ffff92984a1c5000.statahead_max=32
32
1001

real	0m2.536s
user	0m0.020s
sys	0m0.392s
ls -l 1000 files with statahead: 3 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