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=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 AAC2EC07E95 for ; Tue, 20 Jul 2021 10:28:40 +0000 (UTC) Received: from lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (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 DBA35610D2 for ; Tue, 20 Jul 2021 10:28:39 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org DBA35610D2 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linutronix.de Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4GTZgV2tHXz3bg0 for ; Tue, 20 Jul 2021 20:28:38 +1000 (AEST) Authentication-Results: lists.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; secure) header.d=linutronix.de header.i=@linutronix.de header.a=rsa-sha256 header.s=2020 header.b=rrc4HUbr; dkim=fail reason="signature verification failed" header.d=linutronix.de header.i=@linutronix.de header.a=ed25519-sha256 header.s=2020e header.b=jR9gOGNe; dkim-atps=neutral Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=linutronix.de (client-ip=193.142.43.55; helo=galois.linutronix.de; envelope-from=tglx@linutronix.de; receiver=) Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; secure) header.d=linutronix.de header.i=@linutronix.de header.a=rsa-sha256 header.s=2020 header.b=rrc4HUbr; dkim=pass header.d=linutronix.de header.i=@linutronix.de header.a=ed25519-sha256 header.s=2020e header.b=jR9gOGNe; dkim-atps=neutral Received: from galois.linutronix.de (Galois.linutronix.de [193.142.43.55]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4GTZg10W5Hz309r for ; Tue, 20 Jul 2021 20:28:13 +1000 (AEST) From: Thomas Gleixner DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1626776885; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=bDwlcccV3/vrCei0Ik2QF0oAbhCHCeGSps/lbR/oXjs=; b=rrc4HUbrItu4keiCBFDV6/iZsLiL8usY9FbDHeI4D0I1/zy+CkNxG1g/5XN9JnUxDBX1XH D8nz4ERDGHLbOEIT6E/f4yGW2VHnGFKo1WLQJIxyye2fbdZwZ8qSxtslrqM9QYKkj2ffZs seq8Kab8uW4nWTm68L+sBOS0XdBrAuCI4uidnM8U84SNow92p0TxRnF1HSbzt3SvPAQDpr T2RSz05IuSv9YmY1RGtRFynXZoGZkvntuXukmueiIJlwSFCEcq4MXiMIgfckew/n+lUT62 U33GBTeu0r4pJrD81lbua3jk0eve0oivLfdISVdOx5NP2n2Rhv/7CcYMsHYC6A== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1626776885; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=bDwlcccV3/vrCei0Ik2QF0oAbhCHCeGSps/lbR/oXjs=; b=jR9gOGNeHOnpLDQqTwtWhDmu3e6WgD3WgKRfTXr62rFosvzmq87Ej2fos213iV2PD7DabD 8U9PI7FVSnWR/iBg== To: =?utf-8?Q?C=C3=A9dric?= Le Goater , linuxppc-dev@lists.ozlabs.org Subject: Re: [PATCH] powerpc: use IRQF_NO_DEBUG for IPIs In-Reply-To: <20210719130614.195886-1-clg@kaod.org> References: <20210719130614.195886-1-clg@kaod.org> Date: Tue, 20 Jul 2021 12:28:05 +0200 Message-ID: <87czrde0ui.ffs@nanos.tec.linutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: =?utf-8?Q?C=C3=A9dric?= Le Goater Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" On Mon, Jul 19 2021 at 15:06, C=C3=A9dric Le Goater wrote: > There is no need to use the lockup detector ("noirqdebug") for IPIs. > The ipistorm benchmark measures a ~10% improvement on high systems > when this flag is set. > > Cc: Thomas Gleixner > Signed-off-by: C=C3=A9dric Le Goater Reviewed-by: Thomas Gleixner