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=-0.3 required=3.0 tests=DKIM_ADSP_CUSTOM_MED, DKIM_INVALID,DKIM_SIGNED,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no 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 EA476C2D0DB for ; Thu, 30 Jan 2020 16:08:15 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id B3A1820707 for ; Thu, 30 Jan 2020 16:08:15 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="eLJ4gsdq" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B3A1820707 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:34695 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ixCMY-0007oO-V4 for qemu-devel@archiver.kernel.org; Thu, 30 Jan 2020 11:08:14 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:40302) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ixCLs-0007Jm-No for qemu-devel@nongnu.org; Thu, 30 Jan 2020 11:07:33 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ixCLr-0004Dd-PL for qemu-devel@nongnu.org; Thu, 30 Jan 2020 11:07:32 -0500 Received: from mail-ot1-x341.google.com ([2607:f8b0:4864:20::341]:37815) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1ixCLp-0004A3-Io; Thu, 30 Jan 2020 11:07:29 -0500 Received: by mail-ot1-x341.google.com with SMTP id d3so3623895otp.4; Thu, 30 Jan 2020 08:07:29 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=xBN7PIzyeHnGPL5tma5LigU0G0NWwhRpQFRrF43m3/0=; b=eLJ4gsdqAVPun4HA9Y7RmPX82TbUGPl+0Ftp41Fv1tOeuGI7Y7k0EJJiCYx+XvA1jX sGDscMfX9LnHmoxGDr02zbWgbNrfhhYHTXZPG3W4vk1i8nvRN8KH69lAkJW3Yj+y4raO 2HbzjtqakVI44PDwxSQFRl7XeZGQJaKCWZSlBaQd3TLdQWNOFqqtCpgRqtlJKd/cV9QR kz4FODTok0Hxqqi9n7FTUOK/nb1LK8k65WCb95Z0Xrlm04nU0GTgodYlE1meug3jM9lo TPr7zYCXTxwQ4nGUZm1GPaHCtZhxThY4s3Sn3iiqQgzR3/vWlVSjO9rfgYymZRnzfMiE c0XQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=xBN7PIzyeHnGPL5tma5LigU0G0NWwhRpQFRrF43m3/0=; b=LlHum0Ee5JxE+IBEmjmPTHz6/UOm9oKnWZvT8g0ohRD/4HFb5NEkJGssEuCZmimP/b e3xu2mzswfb/LHnrfOaUF7Eu2uLVDNYQC1yqZl4qff8EKFFLDJE40ZjJB5JqElAxmrA5 HpRkeK9DbiqNZz3YZ178WIE5a81LpJVR+GzjSry+nzwLEWdFlsfpFDxd+kPDu0V8hVD8 CfT6aVvjgnSHMfiblhhwgi9puJFQ5AgHbpsXIhenSSiURyGD3SKO15yerQnLO6QdPMl0 hDL+nI5RRF0fn/g8n3N0QE27bisLA6HQIugeo/P1RAy8PFs6VBr9tpGeE89Q5DVmvkYm ThjA== X-Gm-Message-State: APjAAAXcdIB2/G9wmXHnha/yZKiMLXHHFYQIM9tcPvSD0zZB83nZTjuh hYtfkmT/YVC0/zpI+arOW6anGC2pfIXD8BtHvNM= X-Google-Smtp-Source: APXvYqxbNycrarCup0BW8PnAoYPyvt0Arzy2d5e7LV2YrgMZLCrukeiWAvYssBaxejmRChQ/kWbASPkzxa1ehlU6NI0= X-Received: by 2002:a9d:6505:: with SMTP id i5mr3868404otl.121.1580400448691; Thu, 30 Jan 2020 08:07:28 -0800 (PST) MIME-Version: 1.0 References: <20200129235040.24022-1-richard.henderson@linaro.org> In-Reply-To: From: Aleksandar Markovic Date: Thu, 30 Jan 2020 17:07:17 +0100 Message-ID: Subject: Re: [PATCH 0/4] target/ppc: Use probe_access To: Howard Spoelstra Content-Type: text/plain; charset="UTF-8" X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2607:f8b0:4864:20::341 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: qemu-ppc , Richard Henderson , qemu-devel qemu-devel , David Gibson Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On Thu, Jan 30, 2020 at 4:09 PM Howard Spoelstra wrote: > > As this patch set solved the performance issue and even led to the highest scores I ever saw on the benchmark tool I used, let me add a: > This makes my question to Richard more important: Are other targets exposed to performance degradation, and why? > Tested-by: Howard Spoelstra > > On Thu, Jan 30, 2020 at 12:50 AM Richard Henderson wrote: >> >> The first two address the performance regression noticed >> by Howard Spoelstra. The last two are just something I >> noticed at the same time. >> >> >> r~ >> >> >> Richard Henderson (4): >> target/ppc: Use probe_access for LSW, STSW >> target/ppc: Use probe_access for LMW, STMW >> target/ppc: Remove redundant mask in DCBZ >> target/ppc: Use probe_write for DCBZ >> >> target/ppc/mem_helper.c | 197 +++++++++++++++++++++++++++++++++------- >> 1 file changed, 162 insertions(+), 35 deletions(-) >> >> -- >> 2.20.1 >>