The wp_cache_*() functions are non-persistent caches which means that they only last during the current page request. This would be beneficial if you’re requesting the same information multiple times during page load. For example, if you’re showing recent posts in the header, content section, and sidebar ( calling the same code 3 times to retrieve … Read more
Combine JS and CSS for WordPress admin
HTTPS has an overhead on processing power on every request – security considerations or usage pattern left aside. That’s the major downturn (and that it ever was, a question of resources), so you should really ask yourself what do you want to offer to your users. It’s absolutely valid to SSL everything ™ for your … Read more
It seems your code is OK and won’t break anything but for it to work properly across different pages, maybe you should use Transient API functions instead of Object Cache counterparts. Why? Object Cache is not persistent by default (i.e. does not work across different pages). It will persist only if install an persistent cache … Read more
My recommendation would be to set up a wrapper for fetch_feed(). Call the wrapper function through WordPress’ cron and you shouldn’t have an issue. So something like: function schedule_fetch_feeds() { if ( ! wp_next_scheduled( ‘cron_fetch’ ) ) { wp_schedule_event( time(), ‘hourly’, ‘cron_fetch’, ‘http://blog1.url/feed’ ); wp_schedule_event( time(), ‘hourly’, ‘cron_fetch’, ‘http://blog2.url/feed’ ); } } function fetch_feed_on_cron( $url … Read more
I know this is really old question, but today I was dealing with something similar, and I have found a solution – if wp_unique_post_slug() calling is performance bottleneck, and post_name value is not important, then set post_name manualy to some random value. My wp_insert_post post action was taking too long lately (20-30s). It saves custom … Read more
If possible get your PHP updated to the 5.4.x branch. Before you add your caching layer you need to determine whats slowing down MySql and PHP. You need to enable WP_Debug and eliminate any PHP errors. Look for undefined indexes, syntax errors and deprecated functions. That 20 second to first byte is all PHP, MySql … Read more
I answered a similar question on Stack Overflow recently. Don’t forget that the profiler itself adds a big overhead. If your page loads are still really slow with XDebug disabled then I don’t think your problems are limited to translation files and you should look at caching entire pages. You can eliminate MO file loading … Read more
There’s a post here that’s very good about load optimization and performance: Steps to Optimize WordPress in Regard to Server Load? It might be a good idea to also utilize a CDN for a majority of your page requests. If you want performance you’ll have to minimize requests to your database and setup aggressive caching. … Read more
I don’t see a way to make the query faster, but we can cache the result. Unfortunately, there is no hook to circumvent next_post_link() and previous_post_link(), so we have to replace those functions with custom functions. The following sample code uses a post meta field to store the result. There might be side effects – … Read more