Received: by 2002:ac0:a5b6:0:0:0:0:0 with SMTP id m51-v6csp3656094imm; Mon, 4 Jun 2018 07:15:53 -0700 (PDT) X-Google-Smtp-Source: ADUXVKKNgM6zIz9MW36RGoojSWGCqh0LLM9zX9bVnKtciQW6/ziHARpD1vi9gst2ATZaZjAB6QoC X-Received: by 2002:a62:9fd1:: with SMTP id v78-v6mr16139385pfk.233.1528121753248; Mon, 04 Jun 2018 07:15:53 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1528121753; cv=none; d=google.com; s=arc-20160816; b=ptYvQTXM2449+ipEsjDnr+fDxvzvCDu3y0IuFD3iQy4lOmMR0z2GhMAOjMUfC91+0w Um0knkOuIvcC9VJ+2gTx2oXQQElWp4CKQ5ABJH/UbSy9NNq4llfROUA63wGt1/SbRb+c Z616PmxOtmm/jdPNY4qfN3VQplffoaoyafUKQHikqSatF+f2FbD0hNL8TE+VxwxqDflS NiqO33F0eyE7Wi/OVXyH1Lt+gcR/I5bB76YxV+EDD+t6Qp2iKT7/nYMYLubSn5VMc2RA vaStCtbGCTxWue9ZMlcKxidLvBVVIngIquvrejOzoNamfC5ffR2NnGutuQMGx0pmPC1V kteA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:date:message-id:subject:cc:from:to :in-reply-to:arc-authentication-results; bh=5thnMNp6n18kyIg4jhTLQ7gW7iYzoH32birfNdsRJFw=; b=rWNq5Yoc+1JuRx+QQ9w+dF8C5P9gB34AAhZkq/xSNLuKq32lTp7YQKOOHJ7lF9+OmW nBbl6AzUYU5hH5j1WJ8Gg5JYUZxfI/3SpkjyIxCgwNiyOB18MDsGWM6Tw1t0AgCzAy/P Ax6k7VDL8RheKKXwtmBEzEpZWyFxEOq68Zl4ff5SKBLPtVOiDyv2Qt9lLOQQKAi/1Ffj X/KY+7YzSGoYCu9vxtQYxzkayCA4E+hPfTXBfgkFEtALqpqEh5a4O7tlhVpO/FLyqGy/ enqJysbRhUfebEVzJzhDDpfjcQ/2W/OoGPO8ygNFC1ymtSOeZuZoLGfZXVvmZACP1IjC WO8A== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id w12-v6si27597923plq.595.2018.06.04.07.15.38; Mon, 04 Jun 2018 07:15:53 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753742AbeFDOLI (ORCPT + 99 others); Mon, 4 Jun 2018 10:11:08 -0400 Received: from ozlabs.org ([203.11.71.1]:49121 "EHLO ozlabs.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753718AbeFDOLG (ORCPT ); Mon, 4 Jun 2018 10:11:06 -0400 Received: by ozlabs.org (Postfix, from userid 1034) id 40zxgC5wYpz9s0x; Tue, 5 Jun 2018 00:11:03 +1000 (AEST) X-powerpc-patch-notification: thanks X-powerpc-patch-commit: 373e098e1e788d7b89ec0f31765a6c08e2ea0f7c 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) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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