1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
|
use Benchmark;
use Apache::Session::Lock::MySQL;
use vars qw($s $dbh);
$s = {
args => {
LockDataSource => 'dbi:mysql:database=test;host=desk.eng.vivaldi',
LockUsername => 'jwb',
LockPassword => ''
},
data => {
_session_id => ''
}
};
$dbh = DBI->connect('dbi:mysql:database=test;host=desk.eng.vivaldi', 'jwb', '', {RaiseError => 1});
sub loop {
$s->{data}->{_session_id} = int(rand(2**20));
my $l = new Apache::Session::Lock::MySQL;
$l->acquire_read_lock($s);
$l->acquire_write_lock($s);
}
timethis(1000, \&loop, 'Connect 1000 Times');
$s->{args}->{LockHandle} = $dbh;
timethis(10000, \&loop, 'Connect Once, Lock 10000 Times');
`mkfifo sync`;
for ($n = 10; $n <= 100; $n += 10) {
$dbh->disconnect;
my $is_child;
for (my $i = 0; $i < $n - 1; $i++) {
my $pid = fork;
if (!$pid) {
$is_child = 1;
open (SYNC, ">sync") || die $!;
last;
}
}
if (!$is_child) {
print "Sleeping 2 seconds to sync children\n";
sleep 2;
open(GO, "<sync") || die $!;
}
$dbh = DBI->connect('dbi:mysql:database=test;hostname=desk.eng.vivaldi', 'jwb', '', {RaiseError => 1});
$s->{args}->{LockHandle} = $dbh;
timethis(-1, \&loop, "$n Children");
if ($is_child) {
exit();
}
for (my $i = 0; $i < $n - 1; $i++) {
wait();
}
close GO;
}
unlink "sync";
|
