== sanity test 123aa: verify statahead work ============== 17:00:09 (1771970409)
striped dir -i1 -c2 -H crush /mnt/lustre/d123aa.sanity
total: 100 open/close in 0.23 seconds: 431.07 ops/second
llite.lustre-ffff9aaa88de3800.statahead_max=0
101

real	0m0.253s
user	0m0.001s
sys	0m0.062s
ls -l 100 files without statahead: 0 sec
llite.lustre-ffff9aaa88de3800.statahead_max=32
32
101

real	0m0.176s
user	0m0.004s
sys	0m0.051s
ls -l 100 files with statahead: 0 sec
statahead total: 26
statahead wrong: 0
agl total: 26
total: 900 open/close in 1.75 seconds: 513.15 ops/second
llite.lustre-ffff9aaa88de3800.statahead_max=0
1001

real	0m2.825s
user	0m0.017s
sys	0m0.594s
ls -l 1000 files without statahead: 3 sec
llite.lustre-ffff9aaa88de3800.statahead_max=32
32
1001

real	0m0.790s
user	0m0.011s
sys	0m0.656s
ls -l 1000 files with statahead: 1 sec
statahead total: 27
statahead wrong: 0
agl total: 27
 - open/close 5017 (time 1771970430.30 total 10.00 last 501.63)
total: 9000 open/close in 17.72 seconds: 507.91 ops/second
llite.lustre-ffff9aaa88de3800.statahead_max=0
10001

real	0m24.269s
user	0m0.169s
sys	0m5.001s
ls -l 10000 files without statahead: 24 sec
llite.lustre-ffff9aaa88de3800.statahead_max=32
32
10001

real	0m6.836s
user	0m0.137s
sys	0m5.350s
ls -l 10000 files with statahead: 7 sec
statahead total: 28
statahead wrong: 0
agl total: 28
ls -l done
rm -r /mnt/lustre/d123aa.sanity/: 20 seconds
rm done
statahead total: 28
statahead wrong: 0
agl total: 28