trunk/t/02-dbd-ram.t

#!/usr/bin/perl -w

require 5.004;
use strict;

use blib;

require DBI;
require Benchmark;


my($i);
sub TimeMe ($$$$) {
    my($startMsg, $endMsg, $code, $count) = @_;
    printf("\n%s\n", $startMsg);
    my($t1) = Benchmark->new();
    $@ = '';
    eval {
        for ($i = 0;  $i < $count;  $i++) {
            &$code;
        }
    };
    if ($@) {
        print "Test failed, message: $@\n";
    } else {
        my($td) = Benchmark::timediff(Benchmark->new(), $t1);
        my($dur) = $td->cpu_a;
        printf($endMsg, $count, $dur, $count / $dur);
        print "\n";
    }
}


TimeMe("Testing empty loop speed ...",
       "%d iterations in %.1f cpu+sys seconds (%d per sec)",
       sub {
       },
    100000);


my($dbh);
TimeMe("Testing connect/disconnect speed ...",
       "%d connections in %.1f cpu+sys seconds (%d per sec)",
       sub {
           $dbh = DBI->connect("DBI:RAM:", undef, undef,
                               { 'RaiseError' => 1 });
           $dbh->disconnect();
       },
    2000);

$dbh = DBI->connect("DBI:RAM:", undef, undef,
                    { 'RaiseError' => 1 });
TimeMe("Testing CREATE/DROP TABLE speed ...",
       "%d files in %.1f cpu+sys seconds (%d per sec)",
       sub {
           $dbh->do("CREATE TABLE bench (id INTEGER, name CHAR(40),"
                    . " firstname CHAR(40), address CHAR(40),"
                    . " zip CHAR(10), city CHAR(40), email CHAR(40))");
           $dbh->do("DROP TABLE bench");
       },
    500);

$dbh->do("CREATE TABLE bench (id INTEGER, name CHAR(40),"
    . " firstname CHAR(40), address CHAR(40),"
    . " zip CHAR(10), city CHAR(40), email CHAR(40))");
my(@vals) = (0 .. 499);
my($num);
TimeMe("Testing INSERT speed ...",
       "%d rows in %.1f cpu+sys seconds (%d per sec)",
       sub {
           ($num) = splice(@vals, int(rand(@vals)), 1);
           $dbh->do("INSERT INTO bench VALUES (?, 'Wiedmann', 'Jochen',"
                    . " 'Am Eisteich 9', '72555', 'Metzingen',"
                    . " 'joe\@ispsoft.de')", undef, $num);
       },
    500);

my($sth);
TimeMe("Testing SELECT speed ...",
       "%d single rows in %.1f cpu+sys seconds (%.1f per sec)",
       sub {
           $num = int(rand(500));
           $sth = $dbh->prepare("SELECT * FROM bench WHERE id = $num");
           $sth->execute();
           $sth->fetch() or die "Expected result for id = $num";
       },
    100);


TimeMe("Testing SELECT speed (multiple rows) ...",
       "%d times 100 rows in %.1f cpu+sys seconds (%.1f per sec)",
       sub {
           $num = int(rand(400));
           $sth = $dbh->prepare("SELECT * FROM bench WHERE id >= $num"
                                . " AND id < " . ($num+100));
           $sth->execute();
           ($sth->rows() == 100)
               or die "Expected 100 rows for id = $num, got " . $sth->rows();
           while ($sth->fetch()) {
           }
       },
    100);

1	#!/usr/bin/perl -w
2
3	require 5.004;
4	use strict;
5
6	use blib;
7
8	require DBI;
9	require Benchmark;
10
11
12	my($i);
13	sub TimeMe ($$$$) {
14	my($startMsg, $endMsg, $code, $count) = @_;
15	printf("\n%s\n", $startMsg);
16	my($t1) = Benchmark->new();
17	$@ = '';
18	eval {
19	for ($i = 0; $i < $count; $i++) {
20	&$code;
21	}
22	};
23	if ($@) {
24	print "Test failed, message: $@\n";
25	} else {
26	my($td) = Benchmark::timediff(Benchmark->new(), $t1);
27	my($dur) = $td->cpu_a;
28	printf($endMsg, $count, $dur, $count / $dur);
29	print "\n";
30	}
31	}
32
33
34	TimeMe("Testing empty loop speed ...",
35	"%d iterations in %.1f cpu+sys seconds (%d per sec)",
36	sub {
37	},
38	100000);
39
40
41	my($dbh);
42	TimeMe("Testing connect/disconnect speed ...",
43	"%d connections in %.1f cpu+sys seconds (%d per sec)",
44	sub {
45	$dbh = DBI->connect("DBI:RAM:", undef, undef,
46	{ 'RaiseError' => 1 });
47	$dbh->disconnect();
48	},
49	2000);
50
51	$dbh = DBI->connect("DBI:RAM:", undef, undef,
52	{ 'RaiseError' => 1 });
53	TimeMe("Testing CREATE/DROP TABLE speed ...",
54	"%d files in %.1f cpu+sys seconds (%d per sec)",
55	sub {
56	$dbh->do("CREATE TABLE bench (id INTEGER, name CHAR(40),"
57	. " firstname CHAR(40), address CHAR(40),"
58	. " zip CHAR(10), city CHAR(40), email CHAR(40))");
59	$dbh->do("DROP TABLE bench");
60	},
61	500);
62
63	$dbh->do("CREATE TABLE bench (id INTEGER, name CHAR(40),"
64	. " firstname CHAR(40), address CHAR(40),"
65	. " zip CHAR(10), city CHAR(40), email CHAR(40))");
66	my(@vals) = (0 .. 499);
67	my($num);
68	TimeMe("Testing INSERT speed ...",
69	"%d rows in %.1f cpu+sys seconds (%d per sec)",
70	sub {
71	($num) = splice(@vals, int(rand(@vals)), 1);
72	$dbh->do("INSERT INTO bench VALUES (?, 'Wiedmann', 'Jochen',"
73	. " 'Am Eisteich 9', '72555', 'Metzingen',"
74	. " 'joe\@ispsoft.de')", undef, $num);
75	},
76	500);
77
78	my($sth);
79	TimeMe("Testing SELECT speed ...",
80	"%d single rows in %.1f cpu+sys seconds (%.1f per sec)",
81	sub {
82	$num = int(rand(500));
83	$sth = $dbh->prepare("SELECT * FROM bench WHERE id = $num");
84	$sth->execute();
85	$sth->fetch() or die "Expected result for id = $num";
86	},
87	100);
88
89
90	TimeMe("Testing SELECT speed (multiple rows) ...",
91	"%d times 100 rows in %.1f cpu+sys seconds (%.1f per sec)",
92	sub {
93	$num = int(rand(400));
94	$sth = $dbh->prepare("SELECT * FROM bench WHERE id >= $num"
95	. " AND id < " . ($num+100));
96	$sth->execute();
97	($sth->rows() == 100)
98	or die "Expected 100 rows for id = $num, got " . $sth->rows();
99	while ($sth->fetch()) {
100	}
101	},
102	100);
103