It could be anything: A slow and un-optimized MySQL server A theme not suited for big databases A faulty plugin combination … You can make sure that it’s not a plugin or theme issue by disabling all plugins and using a built in theme (I like Twenty Twelve). What else you can do to find … Read more
I assume that you want to activate a plugin only when it is necessary. There is a better option to do this. You can activate the whole plugin upon a certain action. I have provided a example code that will help you achieve what you are looking for and if you have any more queries … Read more
You are using esc_attr(), which isn’t available if you use define( ‘SHORTINIT’, true ); , see source. So you either have to load the formatting.php manually or have to ditch the define( ‘SHORTINIT’, true ); – actually like the example in the thread you are referring to shows. As said in the comment, I checked … Read more
The difference is going to be pretty minimal, I’d expect. There is overhead to using the functions, which you could save by storing your output in a variable. (WordPress does a pretty good job at caching the queries though.) And the variable is going to be more convenient as it is probably fewer characters than … Read more
Meta retrieval go through Cache API, so retrieving same data for same post during same page load won’t cause database re–querying (and in case of Object Cache even between different page loads). So that concern aside I would recommend (as usual) to: Architect in a way that makes sense, not in a way that might … Read more
Well, WordPress.com it’s the largest deployment of WordPress Multisite and they’re basically using the same setup (multiple tables for each site), so you could say that it’s a good strategy. This kind of setup would let you to, for instance, keep your VIP users on a dedicated box, or add multiple DB servers as the … Read more
If it’s native behavior (and not something like third party extensions screwing it up) then update checks should basically fire if there is no data or the time for next check have passed. My educated guess would be it’s one of the two: your install not being able to store transients correctly (thus data always … Read more
Why do you want to test it on localhost if this doesnt reflect your real server envirement? You can do these kind of test (but not on localhost) with a website called https://www.blitz.io/ It shows you exactly the response times for your server, how many users it can handle till producing errors, etc. But you … Read more
I’ve actually made a plugin called Social Metrics Tracker which does exactly what you are trying to achieve. Please also feel free to read the source code on GitHub. To answer your questions: You are right that running an hourly cron task to update all of the posts would cause a problem with even just … Read more
At the top of your wp-config.php you add define(‘WP_MAX_MEMORY_LIMIT’, ‘256M’); this will work only in back-end and do not increase memory in front-end. If this doesn’t work in your site, you can also add this define(‘WP_MEMORY_LIMIT’, ‘256M’);