A brief update with some numbers for hardware load-balanced mongrels

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By bloid
via joyeur.com
Published: Feb 05 2007 / 23:24

Back in August, I posted about a good-sized evaluation I was going to start doing about the horizontal scaling of different proxy engines and load-balancers across lots of mongrels. The final report is still being written up in a whitepaper format.

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Lowell Heddings replied ago:

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So with hardware load balancers, you can reach 4000 requests / second.

Anybody know how much a single PHP/apache configuration can handle?

ancestor replied ago:

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I've never used rails, and I don't even know what a mongrel is :) (and really don't care about it), but I've done some setups with single machines to handle over 2000 concurrent requests/min without compromising other apps such as email and stuff running on the same server. And I'm not talking about small pages - I'm talking about a full CMS running on top of mysql (on the same machine) full of crappy code and unoptimized queries.
As an exercise, I've made once a test setup with a modified version of joomla on a p4 2.0/512Mb and I was able to scale it out to 5000 cons/min without setting the machine on fire. As I said, I'm not really into rails, but if they're using some fancy modern servers and load balancers, and eventually testing it with a separate database server (or better, without an actual db) I wouldn't be surprised.