RE: [PATCH] 2.6 workaround for Athlon/Opteron prefetch errata
From: Martin Schlemmer (azarah_at_gentoo.org)
Date: 09/12/03
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- In reply to: richard.brunner_at_amd.com: "RE: [PATCH] 2.6 workaround for Athlon/Opteron prefetch errata"
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To: richard.brunner@amd.com Date: Fri, 12 Sep 2003 16:14:08 +0200
On Thu, 2003-09-11 at 06:55, richard.brunner@amd.com wrote:
> Jun,
>
> I have to agree with what Andi says. It is in a slow path,
> and we want to guard against user programs that could hit it.
> Making it conditional doesn't buy a lot and would cause lots of
> re-validation of the patch that we would like
> to avoid so we can get this in to the 2.6 kernel ASAP.
> Don't worry! I am pretty certain the patch won't impact the
> performance of the 2.6 kernel on processors from other vendors ;-)
>
Would be nice if somebody with more knowledge about all the
benchmarks and a few non AMD processor machines could test
to see if its really that non critical (*hint* *hint*). Yes,
I am not a kernel dev, but I do know that one or two slowdowns
in an already slow path is not that critical - problem now is
just that 5 or 6 might be an issue =)
Thanks,
-- Martin Schlemmer - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
- Previous message: Maciej W. Rozycki: "Re: [PATCH] NCR53c406a.c warning"
- In reply to: richard.brunner_at_amd.com: "RE: [PATCH] 2.6 workaround for Athlon/Opteron prefetch errata"
- Next in thread: Linus Torvalds: "Re: [PATCH] 2.6 workaround for Athlon/Opteron prefetch errata"
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