From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id EDF67C2BBCA for ; Wed, 16 Dec 2020 14:12:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id AE3E4233CF for ; Wed, 16 Dec 2020 14:12:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726471AbgLPOMO (ORCPT ); Wed, 16 Dec 2020 09:12:14 -0500 Received: from www.zeus03.de ([194.117.254.33]:58176 "EHLO mail.zeus03.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726461AbgLPOMO (ORCPT ); Wed, 16 Dec 2020 09:12:14 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=simple; d=sang-engineering.com; h= date:from:to:cc:subject:message-id:references:mime-version :content-type:in-reply-to; s=k1; bh=G7dpwjFR/zXbY0GDg/WRDwyaGprP 5ZP0uCi2LqjpQTQ=; b=M0VepTeTOl7FM0TGE7Rebmv9SFflcE9QrhHUun4C2Bcy AjNrv8236rgw+RcZT3tcqsnBGPmC6KbBNUw+aqj1p+N85pPLlBTsn4jpBdZ5LLdb Mcdsi/a1o4EPXAwrRkkosuMpFEmoeVS29M9xzoI+BiircjHu4+ZJfpkUuk28KW0= Received: (qmail 3132002 invoked from network); 16 Dec 2020 15:11:31 +0100 Received: by mail.zeus03.de with ESMTPSA (TLS_AES_256_GCM_SHA384 encrypted, authenticated); 16 Dec 2020 15:11:31 +0100 X-UD-Smtp-Session: l3s3148p1@Uoa2c5W25NdUhsJO Date: Wed, 16 Dec 2020 15:11:31 +0100 From: Wolfram Sang To: Yoshihiro Shimoda Cc: ulf.hansson@linaro.org, linux-mmc@vger.kernel.org, linux-renesas-soc@vger.kernel.org Subject: Re: [PATCH v2 2/2] mmc: renesas_internal_dmac: add pre_req and post_req support Message-ID: <20201216141131.GA4563@ninjato> References: <1608114572-1892-1-git-send-email-yoshihiro.shimoda.uh@renesas.com> <1608114572-1892-3-git-send-email-yoshihiro.shimoda.uh@renesas.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="AqsLC8rIMeq19msA" Content-Disposition: inline In-Reply-To: <1608114572-1892-3-git-send-email-yoshihiro.shimoda.uh@renesas.com> Precedence: bulk List-ID: X-Mailing-List: linux-mmc@vger.kernel.org --AqsLC8rIMeq19msA Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed, Dec 16, 2020 at 07:29:32PM +0900, Yoshihiro Shimoda wrote: > Add pre_req and post_req support to improve performance. >=20 > Inspired by a patch in the BSP by Masaharu Hayakawa. >=20 > Signed-off-by: Yoshihiro Shimoda So, I tested this on H3 ES2.0 and M3-N with interesting results. H3 ES2.0 has a significant speedup: with: 254MB/s, without 207MB/s M3-N speedup is smaller but general throughput is much better: with: 262MB/s, without 250MB/s Same kernel, both systems idle otherwise. I don't think it has to do with the number of CPU cores, but more that the SDHI revision is a tad newer maybe? Patch looks good, too: Reviewed-by: Wolfram Sang Tested-by: Wolfram Sang --AqsLC8rIMeq19msA Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEOZGx6rniZ1Gk92RdFA3kzBSgKbYFAl/aFY8ACgkQFA3kzBSg KbZrIA/+PdG+e8E/M2RrWO5MNcXmvoNFN8IE8sRLCbQaZ/CG3Mlr/rCbkKjmlwgL QCi8OKZl4TNvs0zRM3V8D+wl2ILqQ7/bNvVE0oVEetKFrdauMzs4woJy5caRkv9G Wm3q77qQVTnjBfoWCjc8B65fOdoSVHUcxZ8ClRVq65NhpX81sfH4P+C35rkQxjHI 5I7t5oAYt2RL4TQJ8sTIyOwV6yp2uGOIbYjwRUaU1+ZwSy+DajVvIN87uAfFq5jj MGGNxbNwMU0vGUvQHTetWoF/QKxj7B1Uo5d+LbQ9QMKl0t9XFflTVrr5Yzr6rbda gvPpjlCSVauYV8NILzv9JmNzVDEZE22MfNh5AInOWq8lW1CJnTsqg4sd4/pU98Mh AiPjRpmCIEmQhvFneTpDdSsKHXMtMgLYsW8ndsyM1B1/jr9aNTCM7ZCTy/FAR0TH AY4vYyupOZ9H8koutwhV2uyTSgcIoVQ/JkMjdhDKE7Wod6nash1xWugvjozIX7vB 9pocV76ih6GfyQFStw5g59TK4SGs62VX82R4j5xsNd5l38YFEnCaOowo4Wl79gah EOeDL6YzMrGDwl2InVswSWslekgK2p42ACRq8fwrGTgfxnJLlqljgdipyoTcqTH9 Kezz1Lmv1E/Z9tc1BGaBY750Tn+OuMjxn0AdSwKoEgb6Hlo21ro= =xlZp -----END PGP SIGNATURE----- --AqsLC8rIMeq19msA--