
Extremely Slow WordPress Performance
Started by Flix, Nov 04 2012 08:19 PM
performance slow wordpress php mysql
3 replies to this topic
#1
Posted 04 November 2012 - 08:19 PM
I'm currently developing a site and I'm noticing extremely slow performance on WordPress, under any scenario. Here's the info:
http://youtu.be/Y384pTeUc8s
Any suggestions? Like I said, I tried completely "fresh" WordPress installations but I get the exact same behavior.
- Shared account running on Jasmine
- WordPress 3.4.2, PHP 5.3, MySQL 5.5.27
- Default theme; no plugins
- A "clean" database with just a few posts for testing
- Zero external usage (no visitors yet)
- Loading the home (or any other) page: 10 to 15 seconds
- Loading any admin (WP backend) page: 10 to 15 seconds
- Loading an item list (e.g. posts page): very slow, posts loading one-by-one*
http://youtu.be/Y384pTeUc8s
Any suggestions? Like I said, I tried completely "fresh" WordPress installations but I get the exact same behavior.
#2
Posted 04 November 2012 - 08:36 PM
I was able to reproduce the issue - I disabled all plugins and the issue disappeared entirely and everything worked as fast as expected. I then re-activated all of the previously enabled plugins, and the speed continued to remain. I suspect a bug or issue in one of your plug-ins - if it were a server issue, it wouldn't have changed when I disabled your plugins.
█ Michael Denney - MDDHosting LLC - Providing Hosting since 2007
█ Scalable shared hosting plans in the cloud! Check them out!
█ Highly Available Cloud Shared, Reseller, and VPS
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█ Scalable shared hosting plans in the cloud! Check them out!
█ Highly Available Cloud Shared, Reseller, and VPS
█ http://www.mddhosting.com/
#3
Posted 05 November 2012 - 12:06 AM
Upon further investigation, I was able to reproduce this issue in a vanilla WordPress blog that I created for testing purposes. I created 22 posts that were 120 paragraphs totaling 10,712 words and 72.1 KB each.
We performed some additional optimization on our MySQL Configuration based upon the current usage. I believe part of the problem was some cache figures that were actually set too high. The system was spending more time searching those caches than it would take to serve the request directly and then when there was a cache miss it still had to serve the request direct.
Along the way we've also adjusted the Query Cache settings a bit, upping the overall cache and upping the query size that can be cached. It's possible that further optimization will be required, as we need to allow at least 24 hours but preferrably a week or two in-between to see how things are performing statistically to identify what changes need to be made.
If you have any questions at all, let us know.
We performed some additional optimization on our MySQL Configuration based upon the current usage. I believe part of the problem was some cache figures that were actually set too high. The system was spending more time searching those caches than it would take to serve the request directly and then when there was a cache miss it still had to serve the request direct.
Along the way we've also adjusted the Query Cache settings a bit, upping the overall cache and upping the query size that can be cached. It's possible that further optimization will be required, as we need to allow at least 24 hours but preferrably a week or two in-between to see how things are performing statistically to identify what changes need to be made.
If you have any questions at all, let us know.
█ Michael Denney - MDDHosting LLC - Providing Hosting since 2007
█ Scalable shared hosting plans in the cloud! Check them out!
█ Highly Available Cloud Shared, Reseller, and VPS
█ http://www.mddhosting.com/
█ Scalable shared hosting plans in the cloud! Check them out!
█ Highly Available Cloud Shared, Reseller, and VPS
█ http://www.mddhosting.com/
#4
Posted 05 November 2012 - 12:25 AM
Problem fixed in record time! Amazing support; thank you!!!
Happy customer!
Happy customer!



Also tagged with one or more of these keywords: performance, slow, wordpress, php, mysql
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