Re: X15 alpha release: as fast as TUX but in user space (fwd)

From: Ingo Oeser (ingo.oeser@informatik.tu-chemnitz.de)
Date: Sun Apr 29 2001 - 08:32:29 EST

On Sun, Apr 29, 2001 at 04:27:48AM -0700, David S. Miller wrote:
> The idea is that the one thing one tends to optimize for new cpus
> is the memcpy/memset implementation. What better way to shield
> libc from having to be updated for new cpus but to put it into
> the kernel in this magic page?

Hehe, you have read this MXT patch on linux-mm, too? ;-)

There we have 10x faster memmove/memcpy/bzero for 1K blocks
granularity (== alignment is 1K and size is multiple of 1K), that
is done by the memory controller.

This can only be done in the kernel, because it is critical we
access here.

Good idea.

Regards

Ingo Oeser 

-- 
10.+11.03.2001 - 3. Chemnitzer LinuxTag <http://www.tu-chemnitz.de/linux/tag>
         <<<<<<<<<<<<     been there and had much fun   >>>>>>>>>>>>
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This archive was generated by hypermail 2b29 : Mon Apr 30 2001 - 21:00:22 EST