print is just plain expensive. Here's a really quickly hacked together benchmark: $ perl -we'open my $zap, ">", "/dev/null"; use Benchmark "cmpthese"; cmpthese -10, { every => sub { for (1..100) { print $zap $_ } }, tens => sub { my $x; for (1..100) { $x .= $_; print $zap substr($x,0,1000,"") unless $x % 10 } } }'

In reply to Re^3: perl performance vs egrep by ysth
in thread perl performance vs egrep by dba

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