== sanity test 123ab: verify statahead work by using statx ========================================================== 21:32:12 (1780968732)
striped dir -i1 -c2 -H crush /mnt/lustre/d123ab.sanity
total: 100 open/close in 1.54 seconds: 64.73 ops/second
llite.lustre-ffff92984a1c5000.statahead_max=0
100

real	0m1.300s
user	0m0.013s
sys	0m0.153s
statx -l 100 files without statahead: 1 sec
llite.lustre-ffff92984a1c5000.statahead_max=32
32
100

real	0m0.573s
user	0m0.004s
sys	0m0.065s
statx -l 100 files with statahead: 1 sec
statahead total: 28
statahead wrong: 0
agl total: 28
 - open/close 848 (time 1780968754.26 total 10.00 last 84.77)
total: 900 open/close in 10.75 seconds: 83.72 ops/second
llite.lustre-ffff92984a1c5000.statahead_max=0
1000

real	0m11.428s
user	0m0.068s
sys	0m1.143s
statx -l 1000 files without statahead: 11 sec
llite.lustre-ffff92984a1c5000.statahead_max=32
32
1000

real	0m1.949s
user	0m0.043s
sys	0m0.371s
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/: 8 seconds
rm done
statahead total: 29
statahead wrong: 0
agl total: 29