== sanity test 123ab: verify statahead work by using statx ========================================================== 13:35:30 (1781285730)
striped dir -i1 -c2 -H all_char /mnt/lustre/d123ab.sanity
total: 100 open/close in 1.51 seconds: 66.38 ops/second
llite.lustre-ffff949699755000.statahead_max=0
100

real	0m1.736s
user	0m0.005s
sys	0m0.139s
statx -l 100 files without statahead: 2 sec
llite.lustre-ffff949699755000.statahead_max=32
32
100

real	0m0.440s
user	0m0.009s
sys	0m0.053s
statx -l 100 files with statahead: 1 sec
statahead total: 28
statahead wrong: 0
agl total: 28
 - open/close 646 (time 1781285753.83 total 10.00 last 64.57)
total: 900 open/close in 14.01 seconds: 64.26 ops/second
llite.lustre-ffff949699755000.statahead_max=0
1000

real	0m14.804s
user	0m0.095s
sys	0m1.318s
statx -l 1000 files without statahead: 15 sec
llite.lustre-ffff949699755000.statahead_max=32
32
1000

real	0m2.897s
user	0m0.048s
sys	0m0.365s
statx -l 1000 files with statahead: 3 sec
statahead total: 29
statahead wrong: 0
agl total: 29
statx -l done
rm -r /mnt/lustre/d123ab.sanity/: 12 seconds
rm done
statahead total: 29
statahead wrong: 0
agl total: 29