My response is embedded as comments in my revised version of your sample program:
#!/usr/bin/perl
use warnings;
use HTTP::Request::Common qw(GET POST);
use POE qw(Component::Client::HTTP);
use Time::HiRes qw(time);
# TODO - If @url_list gets very large, see the first example at
# http://poe.perl.org/?POE_Cookbook/Web_Client for known pitfalls and
# solutions.
my @url_list;
for (1 .. 10) {
my $a = rand(900);
my $b = rand(900);
my $t = int(rand(100000));
my $url = "http://127.0.0.1:80/search/$t/?a=$a&b=$b";
push @url_list, $url;
}
# TODO - POE::Component::Client::HTTP uses default keep-alive socket
# concurrency and timeouts that are friendly to web sites but may not
# be appropriate for benchmarking. To change that, see the
# ConnectionManager at:
# http://search.cpan.org/~rcaputo/POE-Component-Client-HTTP-0.947/lib/
+POE/Component/Client/HTTP.pm#spawn
POE::Component::Client::HTTP->spawn(Alias => 'ua');
sub got_response {
my $now = time();
my ($SESSION, $heap, $request_packet, $response_packet) =
@_[SESSION, HEAP, ARG0, ARG1];
my $http_request = $request_packet->[0];
my $http_response = $response_packet->[0];
# Find the time since the "tag" was defined.
# This may not be appropriate for benchmarking since a lot of
# interpreter-level work has been done to get here. HTTP headers
# have been parsed by HTTP::Response, for example. This overhead
# can't be separated from the web server's performance at this high
# level.
print "$http_request:\n", ($now - $request_packet->[1]), " sec\n";
}
sub _start {
my $kernel = $_[KERNEL];
foreach my $url (@url_list) {
$kernel->post(
"ua" => "request",
"got_response",
GET($url),
time(), # Called a "tag" in PoCo::Client::HTTP's docs.
);
}
}
POE::Session->create(package_states => [main => ["_start", "got_respon
+se"]]);
POE::Kernel->run();