Caching is the key to success – the more content you cache, the more visitors on the same hardware you can serve. Many WordPress owners run wp-cache plugin to cache blog pages in files, rather than generating content on the fly – querying MySQL database. If you have a low usage that is fine, but if you have a medium load blog or getting Dugg/Slashdot effect – only tuning, optimization and proper caching will keep your blog up and running.
wp-cache will need to regenerate cache file every time a blog post receives a comment – performance is lost if the post receives heavy commenting. You can hack wp-cache plugin to expire cache for particular page only when cache expire time expires, not with every new comment.
Open the WP plugin directory – wp-cache plugin file: wp-cache-phase2.php
and comment out line:
add_action(‘comment_post’, ‘wp_cache_get_postid_from_comment’, 0);
// add_action(‘comment_post’, ‘wp_cache_get_postid_from_comment’, 0);
And you are set.
Filed under: Guides by Linux Admin