High Performance

Events happening in the community are now at Drupal community events on www.drupal.org.

This group is dedicated to solutions and approaches for high traffic, high performing Drupal sites. As such, it will deal with a lot of information around the rest of a typical Drupal "stack" -- the operating system, web server, database, and PHP tweaks that combine to support the Drupal application.

This is not a support channel or a place to post bug reports.

If you think you have found a bug, use the issue queue for the appropriate project.

If you need support, see http://drupal.org/support for options.

mihha's picture

Memory usage on php v5.2 vs v5.3

Motivated by migrating to new Debian v6 and Apache/PHP/MySQL combo, I have discovered interesting results about difference in performance between old v5 and v6 platform.

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theatereleven's picture

Need someone to shed light on tuning a Mercury install

Performance Group: please don't kill me for this post. I've been learning a lot about Drupal as of late. I'm an ex-Windows server admin, so jumping into LAMP and Drupal has been a little overwhelming.

I've got Mercury running on a Linode with 1GB of RAM right now. Need advice on where to go to read up on what to do next. My site is done and I know that Apache, MySQL, Varnish, Pressflow....all of that stuff needs tuning. My site will be 100% authenticated users.

Not afraid to read the docs, just need help in locating the magic place the good ones are kept.

THANKS.

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mitchelljj's picture

I am having a huge difference in performance in a page refresh from a single client for the same version of Drupal (6.20) between a fresh install of Drupal and the same version but with a lot of extra modules downloaded and enabled.

I am having a huge difference in performance in a page refresh from a single client for the same version of Drupal (6.20) between a fresh install of Drupal and the same version but with a lot of extra modules downloaded and enabled.

The cpu we are using is an intel Xeon quad core (though we are only using 2 cores in our VM). It is an E5345 processor with 8MB of L2 cache, a clock speed of 2.33GHz and FSB speed of 1333MHz.

For a fresh install of Drupal: we see a load on a single core of about 9-10% for about 1 – 1.5 seconds from both IE and Firefox clients

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Anonymous's picture

Node.js code sprint

Start: 
2011-04-24 (All day) Australia/Sydney
Organizers: 
Event type: 
User group meeting

Node.js code sprint! You know you want one! Below is a (by no means) complete list of things we want to hack on:

  • Improving the settings pages
  • Improving documentation
  • Making sockets writeable from client connections as well as from Drupal
  • Adding Node.js integration to existing Drupal modules
  • Working on Node.js server extension code
  • Your idea here!

The tentative date for the sprint is Sunday, April 24th.

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mrwhizkid's picture

Pressflow for logged in users + anonymous?

Hi everyone,

I decided to try Pressflow out today. It seems to work pretty well when I when I replaced Drupal core with it but so far I haven't gotten Varnish to work with it. I did install Varnish but I've had some trouble with getting it to work on my server. Here are a few questions I'm hoping someone could help me with:

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KingMoore's picture

Experience with LiquidWeb's Storm on Demand "cloud" hosting?

Hello!

I'm thinking of moving a somewhat high traffic site off of a Verio VPS to LiquidWeb's Storm on Demand cloud hosting:

https://www.stormondemand.com/cloud-server/

I love the ability of our Verio VPS to scale up and down, but during high volume times the VPS isn't really enough.

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christefano's picture

High Performance Drupal meetup in Mar Vista on April 28, 2011

Start: 
2011-04-28 17:00 - 20:00 America/Los_Angeles
Organizers: 
Event type: 
User group meeting

Caffeinated Drupal at Drupal Cafe Interested in Pressflow, Varnish, Pantheon and memcache? Want to jump from shared or "grid" hosting to VPS or dedicated hosting but aren't sure what to do? Do you just want to get more out of what you currently have and take your Drupal site to the next level?

Meet with friends, have coffee and talk about Drupal performance on the Westside at the Venice Grind between 5-8pm on Thursday, April 28, 2011. Afterward, we might go for dinner somewhere nearby or a stiff drink across the street at the Good Hurt. You're invited!

To get last-minute updates, sign up by clicking the Signup button below or stay tuned to the comments on this page (or both!).

When: 5pm to 8pm on Thursday, April 28, 2011
Where: Venice Grind at 12224 Venice Blvd, Los Angeles, CA 90066
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ajayg's picture

Can a pull based CDN be used inplace of shared file system for multiple webnodes?

If you have multiple webnodes , you need some kind of shared filesystem to sync uploaded files, static files etc.

Instead, what if you use a pull based CDN system. So all your files can be served from cdn1.yourdomain.com and all webnodes point to CDN.
the benefits are
1) You don't need to worry about managing a shared file system
2) You also get a free frontend to server static files.

This looks like a much tempting option than shared file system. Do you agree? Or there are gotchas I am not thinking through?

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rokape's picture

Memcached with nginx-varnish?

I setup site d7 with varnish frontend-nginx-php-fpm backend+APC.now install memcache and memcache module.but seem not work with d7.enter admin/reports/memcache i see Page not found.
How about this?
Thanks!

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repoman's picture

Multi-VM Performance Tuning

Our production environment takes roughly 7 secs to fully render, of which it doesn't start rending until 3.4 secs. So rather than attempting all the great information listed here we built an identical Staging environment with the same exact setup as production. I will include our AB stats along with all the configuration information in hope that some of you might be able to point me in the right direction.

Any help would be greatly appreciated.

Server Layout (All RH 5.6 servers) & All running on Fibre SAN

DIRTY DMZ

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