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Let me lay it all out:

  • Lamp environment
  • Mysql is already optimized. I've got memcached setup
  • I've got APC setup
  • Traffic on these web servers is going to come in hard and fast, its not going to be spread out, think more 10,000 visitors within 30 minutes, which isn't too crazy, but these websites do a whole lot of queries. They're run on ExpressionEngine and are just very processor intensive applications in general.
  • Built in EC2 environment. 1 DB server, 1 Web server. Images and static files are 90% served through cloudfront, so they should be a minimal part of the equation. Both instances are large instances(7.5 GB memory, 4 EC2 Compute units)
  • I'm not a server administrator so while I was able to get all of that setup, I'm kind of stuck on what to do to optimize right now. I'm not real impressed with the page load speed right now

So, knowing how the traffic will flow in and what I've got setup, how do I optimize Apache, memcached, and APC appropriately. And, any other tips? :) Thanks

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Do as EightBitTony suggests below. There is no magic bullet for performance: You need to load-test your environment, see how it performs, and open up your individual bottlenecks. Where one environment may be slowed down by a poorly tuned database another may need a PHP accelerator (or a switch to fully-compiled code) to improve performance - it all depends on your environment. –  voretaq7 Jul 26 '11 at 15:52

1 Answer 1

up vote 2 down vote accepted

Baseline, monitor & measure performance, locate bottleneck, understand cause, make tweak, measure performance.

It's generic, because the problem is generic - unless you know why the page loads are slow you can't solve it - and you don't know until you measure.

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I will do that when the time comes, but, I need to set settings initially. Knowing the facts that I have stated, what are good basic settings to start off with? –  Macgyver Jul 26 '11 at 16:31
    
Also agree with EightBitTony but what exactly do you mean by "Mysql is already optimized"? –  HTTP500 Jul 26 '11 at 18:17
    
Macgyver - use the default settings it installed with - then, baseline and measure from there. –  EightBitTony Jul 26 '11 at 22:35

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