svandomelen

I think I know what is going on inside WordPress that causes the performance hit with too many themes.

It seems that for each page, the site will use:
wp-includes/theme.php.

There is a call to get_theme($theme) which will call get_themes().

Turns out that get_themes() has a global called $wp_themes that I assume the author thought would stick around after the first time through. It doesn’t.

This code does some serious file searching for styles.css and other things to validate the theme and handle duplicates. This is way too much work going on during execution of the blog.

Mercime — you raise a good question. I don’t need that many themes and I plan on reducing the count for my site, but I wanted to use this as a model for supporintg additional sites for more users and give them a robust starting point. I did not think all these themes would impact performance — just take up disk space.

BTW: I started with WPMU to host the sites. However, I decided to go back to standard WordPress for now and duplicate the sites. I suppose at some point, I might want to go back to WPMU.

I also use WP-SUPER-CACHE, but that did not help all that much, relatively speaking. I optimized MySQL with query caching as well.

Turns out that this was not a problem with the theme, but my own fault. Turns out that I had modified page.pgp to include WP-Polls and the inserted PHP code was done incorrectly. Once I identified my mistake and made corrections, everything is working as expected.

I am having a problem as well with the Mandigo 1.36 theme on WordPress 2.6. All of my static pages “About” and “Welcome” are showing blank pages. I can use almost any other there and they work, but not Mandigo.

See for yourself: https://www.heyvan.com/blogs/steve/about

Anyone have any idea how to get this working? I really like the basic overall theme, but this is a show stopper.