Results 1 to 2 of 2
-
06-12-2006, 10:32 PM #1Junior Guru Wannabe
- Join Date
- Jun 2006
- Posts
- 34
Explain performance benefits of 64 bit dual core
I'm looking at either CentOS or FreeBSD for an OS on a dedicated server and would like to know what the benefit would be to go from a single core CPU like a P4 2.8GHz to a dual core P42.8GHz. Also what benefit am I going to see from 64 bit processing.
-
06-13-2006, 01:24 AM #2Web Hosting Master
- Join Date
- Apr 2004
- Location
- San Jose
- Posts
- 902
With the Intel architecture, you can't expect double the performance for the dual core, but you should see at least 70% boost. The memory architecture isn't as good in the current Intel dual core CPU as the Opteron has.
As to 64 bit, if your application does a lot moving of data or long long math, you should see a measurable boost in performance. If you have lots code, you will likely see a small performance decrease, due to the instruction fetches taking more space in the caches.
We saw this at MIPS 13 years ago when running IRIX 32 bit vs. 64 bit.Specializing in MySQL and website tuning for high traffic sites. cmwsci.com/