== sanity test 123ab: verify statahead work by using statx ========================================================== 17:50:33 (1776203433)
striped dir -i1 -c2 -H crush /mnt/lustre/d123ab.sanity
total: 100 open/close in 1.90 seconds: 52.67 ops/second
llite.lustre-ffff993648ec0000.statahead_max=0
100

real	0m1.553s
user	0m0.012s
sys	0m0.119s
statx -l 100 files without statahead: 1 sec
llite.lustre-ffff993648ec0000.statahead_max=32
32
100

real	0m0.366s
user	0m0.006s
sys	0m0.046s
statx -l 100 files with statahead: 0 sec
statahead total: 28
statahead wrong: 0
agl total: 28
 - open/close 643 (time 1776203454.28 total 10.01 last 64.24)
total: 900 open/close in 13.81 seconds: 65.17 ops/second
llite.lustre-ffff993648ec0000.statahead_max=0
1000

real	0m14.235s
user	0m0.087s
sys	0m1.035s
statx -l 1000 files without statahead: 14 sec
llite.lustre-ffff993648ec0000.statahead_max=32
32
1000

real	0m2.625s
user	0m0.044s
sys	0m0.397s
statx -l 1000 files with statahead: 2 sec
statahead total: 29
statahead wrong: 0
agl total: 29
statx -l done
rm -r /mnt/lustre/d123ab.sanity/: 11 seconds
rm done
statahead total: 29
statahead wrong: 0
agl total: 29