Pros and Cons of amd64 (versus i386).

Vivek Khera vivek at
Thu Apr 6 14:51:15 UTC 2006

On Apr 6, 2006, at 10:38 AM, Pete French wrote:

> I was thinking of moving this to amd64, but was kind of put off by  
> results
> from a test system I setup using an Athlon 64 3700+ to talk to this
> machine. The opteron box is currently running 6.1-PRE/i386, and the  
> 3700 is

Let me comment that my 64-bit commentary about I/O is based on  
experience with Opterons, which have excellent I/O bandwidth.  The  
Intel EM64T boxes do ok, too, but I have no experience with other 64- 
bit CPUs.  The opterons are just a notch above anything else that  
I've used.

That said, I run 64-bit FreeBSD on all servers capable of it, just to  
have consistent system images (all my new boxes going forward are 64  
bit, so I can eventually phase out the 32-bit system images).   
Management of multiple systems changes the decision making process  

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