Question

Getting high wait time of server

Posted December 18, 2013 6k views
Hi, I am getting a high wait time mostly >1 sec, on few wordpress sites, I am using 2GB plan here, using centos 6.4(64bit) with zpanel getting around 1600 visits daily Also I checked cpu usage , it's around 1% here's the test - http://tools.pingdom.com/fpt/#!/ezv5Q4/backgroundku.com please help how can I reduce it? Do I need to further upgrade? Thnaks
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2 answers
pablo December 18, 2013
This particular reason is why WordPress.com (the inventors of WordPress) dropped Apache in favor of Nginx. You can get better performance on a 512MB droplet running Nginx (w/caching) that what you're getting now.

Short of migrating to Nginx, add:

1.) Memcache;
2.) APC;
3.) the W3 Total Cache plugin; and
4.) and other caching, such as Varnish, for example.

If you're interested in Nginx (but I don't think ZPanel supports Nginx), check out How To Install Wordpress, Nginx, PHP, and Varnish on Ubuntu 12.04.
How To Install WordPress, Nginx, PHP, and Varnish on Ubuntu 12.04
by Etel Sverdlov
Varnish is an HTTP accelerator and a useful tool for speeding up a server, especially during a times when there is high traffic to a site. It works by redirecting visitors to static pages whenever possible and only drawing on the server itself if there is a need for an active process. This tutorial covers installing wordpress on a LEMP stack (with nginx instead of apache), and then installing varnish.
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pablo December 18, 2013
Also, by using a 64-bit OS on a server w/less than 3GB of RAM, any performance benefits that you might gain from the 64-bit operating system are offset by having less memory available for buffers and caching. That's b/c processes can require significantly more memory on the 64-bit architecture.
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