Performance and Speed Optimizations of WordPress [pdf]

Post by ne01 » Tue, May 26, 2015, 7:13 PM UTC

lamosty wrote: post #6

ne01 wrote: post #5

WordPress is slow by design! I have managed to create a blogging engine (in PHP) that it only takes 2ms to create the page dynamically (without caching) from the database + ~20ms for Nginx to serve it. One might argue that my engine does not have as much features... and you are right. Incase you are interested: SunSed.com

WordPress is rather big, having more than 200K function calls on a typical request to a blog post. However, when using the default Twenty Fifteen theme, the performance is not that bad, as you can see from http://ldr.io/1cbbomp (VPS server with 3CPUs and 4GB of RAM). I've just checked your blogging engine and it looks very minimalistic. I like it.

Post by ne01 » Tue, May 26, 2015, 7:15 PM UTC

Ono-Sendai wrote: post #20

merb wrote: post #19

Earlier quoted context omitted.

templates are mostly not the problem, even on python, when you use jinja templates getting generated really fast. However the problem mostly comes through the database. A single page view could hit like 10 queries.

Yeah. Avoid the database, just read from RAM :)

Post by lamosty » Wed, May 27, 2015, 3:13 PM UTC

jacques_chester wrote: post #24

lamosty wrote: post #18

Earlier quoted context omitted.

> Maybe it's improved, but: four times bitten, twice shy. I see, happens all the time. > On disk caching delegates this to the OS, which is pretty good at it. Yeah, it's just a matter of preference and convenience. > It seems as though very few plugin authors know what O-notation means (so many nested loops), what EXPLAIN QUERY is or that tinkering and and firing up a copy on your laptop isn't really testing. This is…

Well in the old days, the operating system was there to help you. If plugins were standalone processes, they could be resource-constrained. But they all have to run in-process because of the LAMP architecture. Hence -- cooperative multitasking. I've been complaining about it for years. Eg: http://clubtroppo.com.au/2008/07/10/shared-hosting-is-doomed...