Thoughts, information and reflections about technology

Opening multiple WordPress admin window for sites on a shared host results in high CPU usage.

I have a few sites that I am trying to grow on a shared host. I noticed that when I open admin windows for about five of the sites, the CPU maxes out.

 

I sometimes find the need to have WordPress admin windows open for several sites on the same host. For example, If I want to check the plugins that are installed to make sure I have all the plugins I want on all the sites. Another example would be to look at the settings for a particular plugin on one site and apply those to other sites.

There is a definite correlation between the number of open WordPress admin windows and CPU Usage. As soon as I open a couple of admin panels, the CPU usage as shown in my cPanel goes to 100 percent.  There could be a number of factors influencing this:

  • The configuration of your hosting, especially CPU and Ram provided by your hosting company.
  • The plugins that are active on the WordPress sites.
CPU Usage before opening admin panels for five WordPress sites on the same host.

CPU Usage before opening admin panels for five WordPress sites on the same host.

 

CPU usage after opening WordPress admin panels for five sites

CPU usage after opening WordPress admin panels for five sites

 

Summary:

  • As soon as traffic increases, I will outgrow my current hosting plan
  • I don’t want to add any more sites to this shared hosting (I was not planning to)
  • I have to look at caching. I’m not sure if that will reduce CPU load or not.
  • I need to make a note to close the admin windows when I’m done with them.

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