note andreychek You're in luck! There are all sorts of methods to benchmark code. I found that there are some excellent <a href="http://perl.apache.org/guide/performance.html">explanations on benchmarking</a> in the mod_perl guide.<br><br> While the mod_perl guide does talk about mod_perl, much of the information there is relevant to all Perl uses. The first example of benchmarking they give uses the [cpan://Benchmark.pm|Benchmark] module, which you already tried. However, they give other examples using modules like [cpan://Time::HiRes] and [cpan://GTop]. Here is an example of the code you would use with Time::HiRes (copied from the mod_perl guide): <code> use Time::HiRes qw(gettimeofday tv_interval); my $start_time = [ gettimeofday ]; sub_that_takes_a_teeny_bit_of_time(); my $end_time = [ gettimeofday ]; my $elapsed = tv_interval($start_time,$end_time); print "The sub took $elapsed seconds." </code> But the good, juicy information doesn't stop there. They get into code profiling, memory usage, and other goodies -- including the speed differences between method calls vs function calls, along with offering various advice on good coding habits to reduce memory usage.<br><br> Feel free to skip any sections that are mod_perl/web specific, if that isn't what you intend to do. Again though, much of what they offer there goes for any code, not just mod_perl and web applications.<br> -Eric 87256 87256