Subject: Re: Followup: MCHK exception in -current with MMU off
To: Tim Kelly <firstname.lastname@example.org>
From: Matt Thomas <email@example.com>
Date: 04/11/2005 12:48:48
Tim Kelly wrote:
> At 2:49 PM -0400 4/11/05, Tim Kelly wrote:
>>Not that GENERIC isn't stable with
>>Altivec, but on a memory access instead of a floating point calculation, I
>>didn't think that this optimization would be that important. I wasn't
>>aware that Altivec will access memory faster than the GPRs.
> That wasn't intended to be flippant, but a literal statement. If Altivec
> does access memory faster than GPRs, I'd like to know this.
It does. And it has less cache side effects. If it wasn't faster, I
would not have added support for using it to do that.
Matt Thomas email: firstname.lastname@example.org
3am Software Foundry www: http://3am-software.com/bio/matt/
Cupertino, CA disclaimer: I avow all knowledge of this message.