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=-12.7 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 4F9F6C47420 for ; Mon, 28 Sep 2020 22:15:05 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (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 F1D442388B for ; Mon, 28 Sep 2020 22:15:04 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="uVY5pxao"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="C1tVa9SA" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org F1D442388B Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To:Message-Id:Date: Subject:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=E42g014Oy6cpiXhEtuptZOjEJOYJvJGBsgU/Hn2TEvM=; b=uVY5pxaordD9N3meoVWypH7Rd ZVQMy2Sj37nuuzRLXrGGtm7fZ3OXQUF/skXQz6JJb4+Ss5kE+Uxl75NPobyZoc4fIbUJYmskxCTPo a2FBsGjaHAic+A9xBK6JyX3QAffukUO1xCwBTjR7HSJ0Lprm/CANyUClR09RjlT3y9DMAOvF0odQx l9mrrrNX7RoEpTclRudx7UuJJToxxJtPA//qqK92Yqz3xw4FGi/a/DDzHBXErz/rk3zASY3zRs4l+ bQdJoSrkk+jOaHOLqPz6+iD8E5MRni/eIW7HNzLxxOgihAcXyQ4Jk7UMpqnvgLurOmkK0eCEEfgw1 yGTkWyb4A==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kN1On-0001V6-D9; Mon, 28 Sep 2020 22:13:33 +0000 Received: from mail.kernel.org ([198.145.29.99]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1kN1Ok-0001UW-Gt for linux-arm-kernel@lists.infradead.org; Mon, 28 Sep 2020 22:13:31 +0000 Received: from localhost.localdomain (236.31.169.217.in-addr.arpa [217.169.31.236]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 035D8221F0; Mon, 28 Sep 2020 22:13:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1601331209; bh=qdtguGj7ne+ICu2uA97EARbs+7YgMRGmUqPTIeWFLpQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=C1tVa9SAf2kvB497uNwINCTVZX6ja6bSDcTjsV3A5sQFdphcV5rxWwGyRTBdrCMq2 SrKZcFF9dD63kaqvBsxr8kIJXrUDNazcYgg24EBAHHhtmzHN/p/Mt0jD3ZeuoSK+Xd ynbZ7hRU3ZHKRh6PkIfr+btQRu0ibZfUyBJusRRk= From: Will Deacon To: Alexandru Elisei , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: Re: [PATCH v7 0/7] arm_pmu: Use NMI for perf interrupt Date: Mon, 28 Sep 2020 23:13:20 +0100 Message-Id: <160131601790.1815118.3633273002766662278.b4-ty@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200924110706.254996-1-alexandru.elisei@arm.com> References: <20200924110706.254996-1-alexandru.elisei@arm.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200928_181330_648837_7FFA4266 X-CRM114-Status: GOOD ( 14.66 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: mark.rutland@arm.com, sumit.garg@linaro.org, Will Deacon , maz@kernel.org, swboyd@chromium.org, catalin.marinas@arm.com, kernel-team@android.com Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Thu, 24 Sep 2020 12:06:59 +0100, Alexandru Elisei wrote: > The series changes the arm_pmu driver to use NMIs for the perf interrupt > when NMIs are available on the platform (currently, only arm64 + GICv3). To > make it easier to play with the patches, I've pushed a branch at [1]: > > $ git clone -b pmu-nmi-v7 git://linux-arm.org/linux-ae > > The changes from v6 were minor, but I've still run the same tests on an > espressobin v7*. These are the results of running perf record -a -- sleep > 60 (all results show kernel symbols with overhead >= 1%): > > [...] Applied to will (for-next/perf), thanks! [1/7] arm64: perf: Add missing ISB in armv8pmu_enable_counter() https://git.kernel.org/will/c/490d7b7c0845 [2/7] arm64: perf: Avoid PMXEV* indirection https://git.kernel.org/will/c/0fdf1bb75953 [3/7] arm64: perf: Remove PMU locking https://git.kernel.org/will/c/2a0e2a02e4b7 [4/7] arm64: perf: Defer irq_work to IPI_IRQ_WORK https://git.kernel.org/will/c/05ab72813340 [5/7] KVM: arm64: pmu: Make overflow handler NMI safe https://git.kernel.org/will/c/95e92e45a454 [6/7] arm_pmu: Introduce pmu_irq_ops https://git.kernel.org/will/c/f76b130bdb89 [7/7] arm_pmu: arm64: Use NMIs for PMU https://git.kernel.org/will/c/d8f6267f7ce5 Cheers, -- Will https://fixes.arm64.dev https://next.arm64.dev https://will.arm64.dev _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel