Re: [PATCH 06/14] Pramfs: Include files

From: David Woodhouse
Date: Mon Jun 22 2009 - 18:21:00 EST

On Mon, 2009-06-22 at 23:41 +0200, JÃrn Engel wrote:
> Four loops doing the same increment with different data types: long,
> u64, we32 (wrong-endian) and we64. Compile with _no_ optimizations.

That's a bit of a poor test then. Especially on architectures with a
load-and-swap instruction where it really shouldn't be any slower at

(Although since GCC doesn't have an __attribute__((littleendian)) I'm
not entirely sure how to entice it into _using_ said instruction for the
purpose of the test... I think the kernel does manage somehow though, if
you get the sources _just_ right.)

David Woodhouse Open Source Technology Centre
David.Woodhouse@xxxxxxxxx Intel Corporation

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