Title: high cpu load index.php wordpress(100%cpu) Last modified: August 22, 2016 --- # high cpu load index.php wordpress(100%cpu) * [ninopro](https://wordpress.org/support/users/ninopro/) * (@ninopro) * [11 years, 4 months ago](https://wordpress.org/support/topic/high-cpu-load-indexphp-wordpress100cpu/) * I moved my site to a virtual private server(VPS) because my sharing web hosting account doesn’t support the growing number of visitors, but when i install it, CPU spikes to 100% and the site doesn’t load. please check these two screenshots [http://i.imgur.com/KUxdrgV.jpg](http://i.imgur.com/KUxdrgV.jpg) [http://i.imgur.com/0vG6sGt.jpg](http://i.imgur.com/0vG6sGt.jpg) * I tried everything; desactivating all plugins, deleting all plugins, checking database, installing a fresh copy of WordPress but still the same problem. * Plugins: All In One SEO Pack Attachment Pages Redirect Autoptimize Contact Form 7 Disqus Comment System HTML Javascript Adder iThemes Security No Image Link Official StatCounter Plugin WordPress Related Posts Responsive Lightbox WP-PageNavi WP-ReportPost Wp Pagenavi Style WP Smush.it WP Super Cache * i updated all plugins and wordpress * VPS centos 6.5 : 5GO RAM, 50GO Disk, CPU 2 vCore(2.0 GHz+) * Apache Version 2.4.10 PHP Version 5.3.29 MySQL Version 5.5.40-cll * number of visitors between 300000 and 500000 * online visitors now between 200 and 300 * Please someone help, i have been struggling for months to find a solution. Viewing 15 replies - 1 through 15 (of 15 total) * [Frank Goossens](https://wordpress.org/support/users/futtta/) * (@futtta) * [11 years, 4 months ago](https://wordpress.org/support/topic/high-cpu-load-indexphp-wordpress100cpu/#post-5631356) * Well, do you have a [PHP opcode cache](https://en.wikipedia.org/wiki/List_of_PHP_accelerator) component installed (APC, typically)? * Thread Starter [ninopro](https://wordpress.org/support/users/ninopro/) * (@ninopro) * [11 years, 4 months ago](https://wordpress.org/support/topic/high-cpu-load-indexphp-wordpress100cpu/#post-5631437) * Thanks for being here Frank. I have installed eAccelerator, the site works but the load is very slow, cpu always 85% [http://i.imgur.com/50W5UIB.jpg](http://i.imgur.com/50W5UIB.jpg) still don’t understand the problem with index.php that causes high cpu usage. * [Frank Goossens](https://wordpress.org/support/users/futtta/) * (@futtta) * [11 years, 4 months ago](https://wordpress.org/support/topic/high-cpu-load-indexphp-wordpress100cpu/#post-5631438) * all wordpress requests go through index.php, so .. * next up; disable all plugins except for wp super cache and check (in wp-content/ cache) if cache-files are being generated. * frank * Thread Starter [ninopro](https://wordpress.org/support/users/ninopro/) * (@ninopro) * [11 years, 4 months ago](https://wordpress.org/support/topic/high-cpu-load-indexphp-wordpress100cpu/#post-5631488) * yes they are. i disabled all plugins except wp super cache at 9:40 PM and its still generating cache-files [http://i.imgur.com/yzrKYUM.jpg](http://i.imgur.com/yzrKYUM.jpg). cpu between 40% and 70% with only wp super cache enabled. [http://i.imgur.com/zfSMkAm.jpg](http://i.imgur.com/zfSMkAm.jpg) * do you think the number of visitors is the problem ? do i have to move to a dedicated sever ? or it’s a bad vps configuration. * [Frank Goossens](https://wordpress.org/support/users/futtta/) * (@futtta) * [11 years, 4 months ago](https://wordpress.org/support/topic/high-cpu-load-indexphp-wordpress100cpu/#post-5631489) * well, from 100% over 85% to 40-70%, you’re definitively going in the right direction there, no? 🙂 * the number of visitors is not negligible, a dedicated server (or cloud hosting) might be interesting, depending on answers to some of below questions; * are the visitors logged to wordpress, or anonymous? * how many posts&pages do you have? * are visitors bound to visit lots of different posts/pages, or are there some pages that stand out? * what is wp super cache’s cache timeout? * frank * Thread Starter [ninopro](https://wordpress.org/support/users/ninopro/) * (@ninopro) * [11 years, 4 months ago](https://wordpress.org/support/topic/high-cpu-load-indexphp-wordpress100cpu/#post-5631490) * anonymous visitors 2600 posts and 5 pages visitors stats [http://i.imgur.com/uS11uC9.jpg](http://i.imgur.com/uS11uC9.jpg) right now on site google analytics [http://i.imgur.com/M6cWWTz.jpg](http://i.imgur.com/M6cWWTz.jpg) * yes visitors are seeing different posts and pages * cash timeout : [http://i.imgur.com/OgsZxYy.jpg](http://i.imgur.com/OgsZxYy.jpg) * [Frank Goossens](https://wordpress.org/support/users/futtta/) * (@futtta) * [11 years, 4 months ago](https://wordpress.org/support/topic/high-cpu-load-indexphp-wordpress100cpu/#post-5631491) * with those numbers (pageviews/day and per minute) a dedicated server should indeed be on your wishlist. alternatively you could sign up with cloudflare or fastly, who’ll be able to absorb that traffic way better. * on you current set-up, I would advise to up the cache timeout significantly ( mine is at 86400 seconds = 24h), which should lower the CPU-load some more. * hope this helps, frank * Thread Starter [ninopro](https://wordpress.org/support/users/ninopro/) * (@ninopro) * [11 years, 4 months ago](https://wordpress.org/support/topic/high-cpu-load-indexphp-wordpress100cpu/#post-5631492) * Thank you so much for being here, god bless you. * [Dignified Labs](https://wordpress.org/support/users/dignifiedbimpe/) * (@dignifiedbimpe) * [11 years ago](https://wordpress.org/support/topic/high-cpu-load-indexphp-wordpress100cpu/#post-5631633) * [@ninopro](https://wordpress.org/support/users/ninopro/) I have a very similar setup and problem to yours. * Did you ever find a solution to your problem? If you did, do you mind sharing. * I’m also on a VPS server with 4GB ram. I’m already using Cloudflare but my problem still persists. * [Frank Goossens](https://wordpress.org/support/users/futtta/) * (@futtta) * [11 years ago](https://wordpress.org/support/topic/high-cpu-load-indexphp-wordpress100cpu/#post-5631634) * Afternoon dignifiedbimpe; There’s no one solution for “high CPU-load”, go through the questions/ remarks posted earlier (opcode caching, page caching plugin, disabling other plugins, …) and see which of those applies to your specific context. Feel free to post your own answers/ findings here and I’ll be happy to provide you with some guidance. * Kind regards, frank * Thread Starter [ninopro](https://wordpress.org/support/users/ninopro/) * (@ninopro) * [10 years, 12 months ago](https://wordpress.org/support/topic/high-cpu-load-indexphp-wordpress100cpu/#post-5631635) * [@dignifiedbimpe](https://wordpress.org/support/users/dignifiedbimpe/) First we thought that the high load was caused by a plugin but it appeared that our website traffic was growing so fast so we moved to a dedicated server. Everything was ok but after a few days the same thing happened so we hosted the website on 3 servers; 1 database server and 2 webservers. * 1 vps server for the database. 2 dedicated servers for the files, plugins and images… * Now we have more than 200 000 daily visitors and everything is working fine. * I didn’t do that by myself, my webhosting did it for me and it’s not very complicated. * [Dignified Labs](https://wordpress.org/support/users/dignifiedbimpe/) * (@dignifiedbimpe) * [10 years, 12 months ago](https://wordpress.org/support/topic/high-cpu-load-indexphp-wordpress100cpu/#post-5631636) * Thank you both for your feedback. I have just tried all the procedures suggested by Frank Gossens. * I have installed APC on my VPS server, but my high CPU load problem still persists. * Annoyingly it also appears my server gets high CPU load whenever i publish a new post on my wordpress site. * I have also tried deactivating and reactivating all plugins. The screenshots below are my findings so far. * After de-activating all plugins, this was the reading on my server… [http://idey.me/wp-content/uploads/2015/05/Post-plugin-disable.png](http://idey.me/wp-content/uploads/2015/05/Post-plugin-disable.png) * I went a step further and also switched to the default wordpress theme… [http://idey.me/wp-content/uploads/2015/05/Post-plugin-disable-twenty-fifteen-theme.png](http://idey.me/wp-content/uploads/2015/05/Post-plugin-disable-twenty-fifteen-theme.png) * I then re-activated all my plugins… [http://idey.me/wp-content/uploads/2015/05/Post-plugin-renable-twenty-fifteen-theme.png](http://idey.me/wp-content/uploads/2015/05/Post-plugin-renable-twenty-fifteen-theme.png) * As you can see from the screenshots that there is also a random CPU drain by the root user and I don’t know why. I am mostly in my WordPress frontend, hardly ever go into root. * @ninpro, i have also considered your suggestion but it sounds quite expensive to have multiple servers. I currently find my VPS account with bluehost expensive as it is already. * Plus, i don’t even have up to 2000 users coming on the site daily. * Bluehost claims they can’t help with VPS installations as they are not configured by them. I constantly get hit with the “hire a developer to optimise your site” response. * Thanks you advance for your responses guys. * [Dignified Labs](https://wordpress.org/support/users/dignifiedbimpe/) * (@dignifiedbimpe) * [10 years, 12 months ago](https://wordpress.org/support/topic/high-cpu-load-indexphp-wordpress100cpu/#post-5631637) * My website appears to be very fine on the front-end, but on the back-end all is not well. * You can test the frontend yourself on pingdom or gtmetrix. * [http://idey.me](http://idey.me) * [Frank Goossens](https://wordpress.org/support/users/futtta/) * (@futtta) * [10 years, 12 months ago](https://wordpress.org/support/topic/high-cpu-load-indexphp-wordpress100cpu/#post-5631638) * hmm … the whostmgr processes apparently are monitoring processes, which you can’t do a thing about. but CPU usage does not seem that high on those screenshots ( when ignoring whostmgr)? still, performance of a VPS is hard to troubleshoot as the hoster did not configure the guest-OS, but the customer did not configure the host-OS. going to a dedicated server could indeed be expensive, but you could upgrade your VPS-plan, I guess? * specifically for wordpress; make sure you have APC active and install a page caching plugin (hyper cache or wp super cache). posting new posts (or comments) will however always cause a brief higher CPU-load, as this involves PHP (WP) and your database. * frank * [Dignified Labs](https://wordpress.org/support/users/dignifiedbimpe/) * (@dignifiedbimpe) * [10 years, 11 months ago](https://wordpress.org/support/topic/high-cpu-load-indexphp-wordpress100cpu/#post-5631639) * Just to update you all, I eventually made up my mind and moved my site to a new host. * My site is now performing much better and faster on a the VPS server (4gb RAM, 2CPU & 200gb SSD Disk drive + Memcache + Cloudflare Pro). * Occasionally I still the “index.php” process using as much as 49% CPU, but this does not seem to affect the server half as much as it did on the previous server. * Thanks for all your help. Viewing 15 replies - 1 through 15 (of 15 total) The topic ‘high cpu load index.php wordpress(100%cpu)’ is closed to new replies. ## Tags * [cpu](https://wordpress.org/support/topic-tag/cpu/) * [high load](https://wordpress.org/support/topic-tag/high-load/) * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/) * 15 replies * 3 participants * Last reply from: [Dignified Labs](https://wordpress.org/support/users/dignifiedbimpe/) * Last activity: [10 years, 11 months ago](https://wordpress.org/support/topic/high-cpu-load-indexphp-wordpress100cpu/#post-5631639) * Status: not resolved ## Topics ### Topics with no replies ### Non-support topics ### Resolved topics ### Unresolved topics ### All topics