Title: CloudLinux Performance Problems / Resource Limiting
Last modified: September 1, 2016

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# CloudLinux Performance Problems / Resource Limiting

 *  [dibert](https://wordpress.org/support/users/dibert/)
 * (@dibert)
 * [9 years, 10 months ago](https://wordpress.org/support/topic/cloudlinux-performance-problems-resource-limiting/)
 * My hosting provider recently moved my site to CloudLinux and I’m my site keeps
   getting limited. It’s a small personal site with less than 50 sessions per day,
   yet cPanel usage says…
 * • Your site has been limited within the past 24 hours
    • Virtual memory resources
   were limited for your site • Physical memory resources were limited for your 
   site • I/O usage resources were limited for your site
 * > Current Usage
   >  Description Usage Limit Fault CPU Usage 14.0% 100% I/O Usage
   > 0.0 KB/s 6144.0 KB/s IOPS 0 6144 Entry Processes 0 40 0 Number of Processes
   > 0 200 0 Physical Memory Usage 39.27M 2.00G 0
 * My hosting provider is really struggling to find the problem, blaming crawlers,
   large photos on my site, traceroute etc… I locked down robots.txt file. They 
   then bumped the IO and CPU limits up and the problem keep happening. As a test
   I moved a copy of the site to a new hosting provider (HostGator) and it is running
   flawlessly there just like it did on the same hosting provider before the move
   to CloudLinux, so I’m convinced it is a CloudLinux problem of some sort. Hopefully
   it is a configuration issue.
 * The site usually works fine, its just WordPress admin that is a problem. There’s
   something that the installed plugins PHP file does that always triggers the problem.
   If I don’t check the installed plugins page, it hangs for about 3 minutes, then
   it times out. After it times out once or sometimes twice, it usually works fine
   for awhile like whatever it was doing finally got what it needed in cache. If
   I try to install or remove a plugin, I’ll likely run into the problem there too.
 * Any ideas or known problems with WordPress on CloudLinux? Could it be a bad disk
   or a service side network connection retrying? How can I point my hosting provider
   in the right direction?

Viewing 1 replies (of 1 total)

 *  Thread Starter [dibert](https://wordpress.org/support/users/dibert/)
 * (@dibert)
 * [9 years, 9 months ago](https://wordpress.org/support/topic/cloudlinux-performance-problems-resource-limiting/#post-7472484)
 * I solved most of the mystery above. It was not really a CloudLinux performance
   problem, it was a ISP networking issue and a contributing factor was WordPress
   did not make it easy to see what the problem was.
 * One of the WordPress plugins was trying to check for updates and the ISP was 
   blocking the IP address of the plugin site. WordPress hung and then timed out.
   A second try clicking on “installed plugins” produced the same result. Each timeout
   took about 3 minutes each, then after two timeouts the “installed plugins” plugin
   page worked fine.
 * The IP address should not have been blocked, however, WordPress didn’t give any
   error or warning either, which made it very hard to troubleshoot. I’m running
   WordPress 4.5.2. This is a good candidate for an enhancement for WordPress.

Viewing 1 replies (of 1 total)

The topic ‘CloudLinux Performance Problems / Resource Limiting’ is closed to new
replies.

## Tags

 * [cloudlinux](https://wordpress.org/support/topic-tag/cloudlinux/)
 * [performance](https://wordpress.org/support/topic-tag/performance/)

 * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
 * 1 reply
 * 1 participant
 * Last reply from: [dibert](https://wordpress.org/support/users/dibert/)
 * Last activity: [9 years, 9 months ago](https://wordpress.org/support/topic/cloudlinux-performance-problems-resource-limiting/#post-7472484)
 * Status: not resolved

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