c:\test>s-udp.pl -MAXBUF=500 Total: 347176 throughput: 9777/sec [max: 9987] #### use strict; use threads; use threads::shared; use Thread::Queue; use Time::HiRes qw[ time usleep ]; use IO::Socket; use List::Util qw[ max ]; $|++; our $PORT ||= 9999; our $FILE ||= 'theLog'; our $LEN ||= 6; our $MAXBUF ||= 1000; my $Q = new Thread::Queue; open my $log, '+> :raw', $FILE or die "$FILE: $!"; my $start = time; my $n :shared = 0; my %log; my $total = 0; async { my $max = 0; my $thru = 0; while( my $in = $Q->dequeue ) { ++$log{ $_ } for split chr(0), $in; sysseek $log, 0, 0; my $logRec = join "\n", map{ $_ . ':' . $log{ $_ } } sort keys %log; syswrite( $log, $logRec ); $max = max( $max, $thru = int( $n / ( time() - $start ) ) ); printf "\r\t Total: %8d throughput: %5d/sec [max:%5d]", $total, $thru, $max; $total += $n; $n = 0; $start = time(); sleep 1; } }; my $srv = IO::Socket::INET->new( LocalPort => $PORT, Proto => 'udp', ) or die "Socket: $@ : [$^E]"; my $buffer = ''; my $msg; while( $srv->recv( $msg, $LEN ) ) { next unless length $msg; $n++; if( length( $buffer .= chr(0) . $msg ) > $MAXBUF ) { $Q->enqueue( $buffer ); $buffer = ''; } } #### #! perl -slw use strict; use IO::Socket; our $N ||= 1000; our $PORT ||= 9999; our $DELAY ||= 0.0001; my $sock = IO::Socket::INET->new( Proto => 'udp', PeerPort => $PORT, PeerAddr => 'localhost' ) or die "$@ [$^E]"; my $sent = 0; for ( 1 .. $N ) { ++$sent; $sock->send( int rand( 32767 ) ); select undef,undef, undef, $DELAY; } print "Sent: $sent";