Using fork (even via Parallel::ForkManager) on Windows, where fork is emulated, doesn't make much sense.

I use this for stress testing my local servers. By default it will run 20 clients, each will make 1000 (serial) connections and exchange 1000 conversations. Adapting it to your needs should be straight forward.

#! perl -slw
use strict;
use threads;
use IO::Socket;

our $W //= 20;

my @t = map{
    async {
        for( 1 .. rand 1000 ) {
            my $s = new IO::Socket::INET(
                'localhost:12345'
            ) or die "Failed to connect to server: $!";
            for( 1 .. rand 1000 ) {
                print $s "Message $_";
                scalar <$s>;
            }
            close $s;
        }
    };
} 1 .. $W;

$_->join for @t;
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