== sanity test 123aa: verify statahead work ============== 00:39:07 (1773203947)
seq.cli-lustre-OST0000-super.width=0x1ffffff
seq.cli-lustre-OST0001-super.width=0x1ffffff
kvm
mdc.lustre-MDT0000-mdc-ffff9ffe463ce000.batch_stats=0
mdc.lustre-MDT0001-mdc-ffff9ffe463ce000.batch_stats=0
striped dir -i1 -c2 -H crush2 /mnt/lustre/d123aa.sanity
total: 100 open/close in 2.59 seconds: 38.67 ops/second
llite.lustre-ffff9ffe463ce000.statahead_max=0
101

real	0m2.291s
user	0m0.007s
sys	0m0.336s
ls -l 100 files without statahead: 2 sec
llite.lustre-ffff9ffe463ce000.statahead_max=128
128
101

real	0m1.080s
user	0m0.006s
sys	0m0.168s
ls -l 100 files with statahead: 1 sec
statahead total: 131
statahead wrong: 2
agl total: 127
list_total: 24
fname_total: 91
hit_total: 789
miss_total: 1487
 - open/close 486 (time 1773203977.93 total 10.00 last 48.58)
total: 900 open/close in 17.57 seconds: 51.21 ops/second
llite.lustre-ffff9ffe463ce000.statahead_max=0
1001

real	0m22.688s
user	0m0.037s
sys	0m3.059s
ls -l 1000 files without statahead: 23 sec
llite.lustre-ffff9ffe463ce000.statahead_max=128
128
1001

real	0m6.494s
user	0m0.028s
sys	0m1.512s
ls -l 1000 files with statahead: 7 sec
statahead total: 132
statahead wrong: 2
agl total: 128
list_total: 25
fname_total: 91
hit_total: 1788
miss_total: 1488
ls -l done
rm -r /mnt/lustre/d123aa.sanity: 18 seconds
llite.lustre-ffff9ffe463ce000.statahead_stats=
statahead total: 132
statahead wrong: 2
agl total: 128
list_total: 25
fname_total: 91
hit_total: 1788
miss_total: 1488
mdc.lustre-MDT0000-mdc-ffff9ffe463ce000.batch_stats=
snapshot_time:            1773204046.470001683 secs.nsecs
start_time:               1773203952.637049998 secs.nsecs
elapsed_time:             93.832951685 secs.nsecs
subreqs per batch   batches   % cum %
1:		         4  19  19
2:		         0   0  19
4:		         3  14  33
8:		         0   0  33
16:		         1   4  38
32:		        11  52  90
64:		         2   9 100
mdc.lustre-MDT0001-mdc-ffff9ffe463ce000.batch_stats=
snapshot_time:            1773204046.470071382 secs.nsecs
start_time:               1773203952.637203557 secs.nsecs
elapsed_time:             93.832867825 secs.nsecs
subreqs per batch   batches   % cum %
1:		         1   4   4
2:		         0   0   4
4:		         0   0   4
8:		         3  13  18
16:		         2   9  27
32:		         2   9  36
64:		        14  63 100
seq.cli-lustre-OST0000-super.width=65536
seq.cli-lustre-OST0001-super.width=65536