From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from ozlabs.org (bilbo.ozlabs.org [203.11.71.1]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 40zxgD73J9zF0Rs for ; Tue, 5 Jun 2018 00:11:04 +1000 (AEST) In-Reply-To: <484bcfaccc1ec3d91b74aeaaa26a0ae66fe0955a.1527160868.git.christophe.leroy@c-s.fr> To: Christophe Leroy , Benjamin Herrenschmidt , Paul Mackerras , segher@kernel.crashing.org From: Michael Ellerman Cc: linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org Subject: Re: powerpc/32: Optimise __csum_partial() Message-Id: <40zxgC5wYpz9s0x@ozlabs.org> Date: Tue, 5 Jun 2018 00:11:03 +1000 (AEST) List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Thu, 2018-05-24 at 11:22:27 UTC, Christophe Leroy wrote: > Improve __csum_partial by interleaving loads and adds. > > On a 8xx, it brings neither improvement nor degradation. > On a 83xx, it brings a 25% improvement. > > Signed-off-by: Christophe Leroy > Reviewed-by: Segher Boessenkool Applied to powerpc next, thanks. https://git.kernel.org/powerpc/c/373e098e1e788d7b89ec0f31765a6c cheers