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Re: [PATCH] PPC64 Use hardware sqrt.
- From: Steve Munroe <sjmunroe at us dot ibm dot com>
- To: Kumar Gala <kumar dot gala at freescale dot com>
- Cc: dgm69 at us dot ibm dot com, janis187 at us dot ibm dot com, libc-alpha at sources dot redhat dot com
- Date: Fri, 30 Apr 2004 11:00:24 -0500
- Subject: Re: [PATCH] PPC64 Use hardware sqrt.
Kumar Gala wrote on 04/29/2004 05:55:21 PM:
> I do not think its fair to say that all future PPC64 processors will
> implement the fsqrt instruction.
>
> - kumar
>
All server (i/pSeries) and 970 models do and will. The silicon required
for this is so small as to be lost in the noise of a modern chip design.
So I will take 3-5X performance gain.
Steven J. Munroe
Linux on Power Toolchain Architect
IBM Corporation, Linux Technology Center