use strict; use warnings; use Benchmark; use Template; open my $fh, '<', 'index1.tmpl' or die $!; my $template = do { local $/; <$fh> }; close $fh; my $t1 = Template->new(INCLUDE_PATH => '.', PRE_PROCESS => 'main.tmpl') or die $!; sub program { $t1->process(\$template, undef, '/dev/null') or die $!; } sub cache { $t1->process('index1.tmpl', undef, '/dev/null') or die $!; } Benchmark::cmpthese(-1, {   program => \&program,   cache => \&cache, });