apc

Hello all,

I am running (and developing) a site that runs on multiple (app) nodes behind a load balancer, and a separate database and storage server. Each node runs Apache (MPM worker) with FCGI, APC turned on. Drupal 7 based, with the APC module enabled, with most cache tables deferred to APC.

Hey folks,

I'm new to this group and wanted to say hi by sharing our case study with you:
http://drupal.org/node/1774428

Any input is welcome. Let me know what you think.

I'm trying to speed up my website and need some suggestions about what things go together and which typically give you the most performance increase. I need to lower CPU usage and caching seems like the way to go. We really need to decrease CPU because our host (a pretty well respected and expensive VPS) is being overloaded with only 2-3 simultaneous users. I've run Yslow and the developers are working on making the recommended changes there.

I am wondering what tuning and configuration do you do to make your environment faster?

Here is my experience:

1. Got more memory utilization from installing PAE on 32 bit Linux.
2. Installed APC, tuned MySQL and got about 50-100% performance boost. See my blog post for more details: http://vmirgorod.name/blog/boosted-lamp-drupal-devs
3. Realized that new NetBeans 7.1.2 is working much faster then Komodo IDE, Zend Studio or Eclipse. People says that 7.2 RC are even more faster. Checkout here http://www.netbeans.com/downloads/index.html

Hi all.

I use a CentOS server to deploy a Drupal site. I use ~50 drupal projects (> 100 modules) for this site. When I enable APC, the Web server often auto-restart.

My server's information:
+ CentOS
+ Apache 2.2.3
+ PHP 5.3.8
+ APC 3.1.9

• If I disable APC, the error doesn't occur. The site work correctly.
• In my local PC, I use ubuntu with Apache 2.2.14, PHP 5.3.2, APC 3.1.9 => The site work correctly without this error.

=> Could you help me?

I would like to know your thoughts on Drupal and its performance, and especially how to improve it.

We currently use a system based on Drupal 6.22 Project Mercury (Pressflow, Varnish, APC ...) specially designed for heavy traffic. And we have installed more 50 modules like (Views, CCK, Panel, VBO, Rules, Workflow, UberCart, Solr…)

But our production server is a virtual environment with 4 CPUs and 8 GB of Ram, which is really huge for a single site. During our peak traffic, we have over 1,800 visits and more than 50 connected users for one day.

Using the APC module for D7 - I've done a very quick performance test, just to give an idea of what you might expect when serving cached pages (anonymous users) - I hope this is useful to someone: