Will RewriteRules In .htaccess Affect Site's Speed?

Question

I am planing to add at most 10 .htaccess rewrite url codes in home directory will it affect execution ( loading time of site ) of my website ?

my current .htaccess file is

Options +FollowSymLinks
RewriteEngine On
RewriteRule ^([0-9]+)/([0-9]+)/([^.]+).html index.php?perma=$3
RewriteRule ^movies/([^.]+).html gallery.php?movie=$1
RewriteRule ^album/([^.]+).html gallery.php?album=$1
RewriteRule ^img/([^.]+)/([^.]+).html gallery.php?img=$2
RewriteRule ^movies.html gallery.php

Answer 1

Yes it will affect the load time. The more rules/exceptions you have, the longer it takes to render. But: we are talking about micro/milliseconds that won't be even noticed by the human eye.

Answer 2

You might need to see performance impact of order of rewrite rules when using apache mod_rewrite and, like @diolemo commented, for 20 rewrite rules it's not noticeable.