SSD Performance for PHP?

Posted by Andrew Fashion on Server Fault See other posts from Server Fault or by Andrew Fashion
Published on 2011-07-17T03:33:34Z Indexed on 2013/11/10 15:59 UTC
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My programmer just built an application with PHP using Doctrine ORM (will be a high traffic social networking website), and it's very heavy in PHP/Apache and CPU. The queries are wonderfully fast, and MySQL is barely using any CPU, it's just Apache.

I was curious to if an SSD would help speed up PHP/Apache, because I know the bottleneck is in PHP reading multiple files, class files, and loading up a bunch of data.

So common sense makes me think if PHP is reading multiple PHP files, an SSD would only help as far as read/write?

I was thinking of doing a high performance SSD for the PHP application, but for user image uploads, I would just continue using a 15k SAS. Is there any performance issues regarding using an SSD in this kind of situation? And would it prove to help speed up PHP/Apache, and help the CPU problem out?

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