Rate compiled regular compiled 27322/s -- -11% regular 30675/s 12% --

use strict; use Benchmark qw(cmpthese); use XML::LibXML 1.68; my $xml = XML::LibXML->new->parse_string(<<EOXML <foo> <bar>1</bar> <bar>2</bar> </foo> EOXML my $xpath = '/foo/bar'; my $compiled_xpath = XML::LibXML::XPathExpression->new($xpath); cmpthese(100_000, { compiled => sub { $xml->findnodes($xpath); }, regular => sub { $xml->findnodes($compiled_xpath); } });

# With Immutable Classes timethis 10000: 32 wallclock secs (30.82 usr + 0.26 sys = 31.08 CPU) @ 321.75/s (n=10000) # Without Immutable Classes daisuke@beefcake-7 trunk$ perl benchmark.pl timethis 10000: 75 wallclock secs (73.32 usr + 0.51 sys = 73.83 CPU) @ 135.45/s (n=10000)

use strict; use Benchmark qw(timethis); use Bread::Board; timethis(10_000, sub { my $c = container 'MyApp' => as { service 'log_file_name' => "logfile.log"; service 'logger' => ( class => 'FileLogger', lifecycle => 'Singleton', dependencies => [ depends_on('log_file_name'), ] ); container 'Database' => as { service 'dsn' => "dbi:sqlite:dbname=my-app.db"; service 'username' => "user234"; service 'password' => "****"; service 'dbh' => ( block => sub { my $s = shift; DBI->connect( $s->param('dsn'), $s->param('username'), $s->param('password'), ) || die "Could not connect"; }, dependencies => wire_names(qw[dsn username password]) ); }; service 'application' => ( class => 'MyApplication', dependencies => { logger => depends_on('logger'), dbh => depends_on('Database/dbh'), } ); }; });