== sanity test 123ab: verify statahead work by using statx ========================================================== 11:20:54 (1761319254)
striped dir -i1 -c2 -H crush /mnt/lustre/d123ab.sanity
total: 100 open/close in 1.09 seconds: 92.09 ops/second
llite.lustre-ffff8f54d0e2d000.statahead_max=0
100

real	0m0.932s
user	0m0.012s
sys	0m0.115s
statx -l 100 files without statahead: 1 sec
llite.lustre-ffff8f54d0e2d000.statahead_max=32
32
100

real	0m0.263s
user	0m0.005s
sys	0m0.057s
statx -l 100 files with statahead: 0 sec
statahead total: 28
statahead wrong: 0
agl total: 28
total: 900 open/close in 7.47 seconds: 120.52 ops/second
llite.lustre-ffff8f54d0e2d000.statahead_max=0
1000

real	0m7.346s
user	0m0.066s
sys	0m1.024s
statx -l 1000 files without statahead: 7 sec
llite.lustre-ffff8f54d0e2d000.statahead_max=32
32
1000

real	0m0.993s
user	0m0.021s
sys	0m0.376s
statx -l 1000 files with statahead: 1 sec
statahead total: 29
statahead wrong: 0
agl total: 29
statx -l done
rm -r /mnt/lustre/d123ab.sanity/: 6 seconds
rm done
statahead total: 29
statahead wrong: 0
agl total: 29