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 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 37E6AC32771 for ; Wed, 21 Sep 2022 07:27:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=YslRVRcWQuOljWlbpSMYVpQZCdoFwf0DINtSoCXsYWA=; b=Q3+xCu1aDIOmq7 w2z6exRENXJk0wVGoZNjDSEXef7INVwYid1RL9klz+DALn8iSrFzXYjiJ4adiKGDKrmjpPvqDejkG bs/kIOJoD+/1RIEovLEQkEK/Bkq5FqVO+8nCAiQXeRsdHeJxngpkUzd4ElYElTgseFEnu+6fERUej qX2A73pON+gLdG5zGkeeCagJ9CuBuvS5FzacqK9cxNHYm3DCr31vdUqy1CgUaK2txoRFOlACCtMu3 kHbyM/pmAMxbHCzB2Ab5fn8xmpMNw56EbALLbKBtQjif/o7M8iy6YTJUwVNlvpYHzB2BBOOBaRJji W+gQq6T0dkfI0UhMAHXA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1oau7m-009aLe-Le; Wed, 21 Sep 2022 07:26:27 +0000 Received: from pandora.armlinux.org.uk ([2001:4d48:ad52:32c8:5054:ff:fe00:142]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1oau7f-009aGJ-3i for linux-arm-kernel@lists.infradead.org; Wed, 21 Sep 2022 07:26:22 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=armlinux.org.uk; s=pandora-2019; h=Sender:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=ZM3gGbkZgX13vBDABjAOprtNhmWZaQpsGXIc/JIAFKw=; b=CPSqJnzrTOYx4S643KqJR0U/Ok fC7tpPd7umu6ycFv+65syt9Om/mEISEYHUwZKlphnvz+hFMCh54J0AETJ54luQfQp1P9vPQIMRYM7 280u8LY46y3ykkJwrhFSTObigC3rvN8pyLjlmBn/zmrUfb1uE2Nkv65bajyDxGJgj3SALp1hUMFSk 3Fs/DIsvo/sAwI5WIiodQmOPGbcJu1b9DYuDfjLrt7ld+Qald6KqOO6cqq+YCjyrI5lQLDOvv2utd 0cCp/6KfG2FjC50Am9wr0a4gwUX2CgrYWsZR9qoZMO29X7DxrS0+JdavuvT6g2C0T+F+WAMEhQRg3 uRm2uWxQ==; Received: from shell.armlinux.org.uk ([fd8f:7570:feb6:1:5054:ff:fe00:4ec]:34428) by pandora.armlinux.org.uk with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1oau7Y-0002sG-9V; Wed, 21 Sep 2022 08:26:12 +0100 Received: from linux by shell.armlinux.org.uk with local (Exim 4.94.2) (envelope-from ) id 1oau7X-00085O-3e; Wed, 21 Sep 2022 08:26:11 +0100 Date: Wed, 21 Sep 2022 08:26:11 +0100 From: "Russell King (Oracle)" To: Li Chen Cc: arnd bergmann , linux-arm-kernel Subject: Re: Why GICD_ITARGETSR is not used by Linux Message-ID: References: <183588fd5a7.1074ac6241209386.2442883306267550831@linux.beauty> <45d1a6b4-eb28-4392-84a3-d30a2f8e150a@www.fastmail.com> <1835a49844d.111e968dc1302721.8856919484302602882@linux.beauty> <1835de59d71.11f05fad11576394.1145073103918319714@linux.beauty> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <1835de59d71.11f05fad11576394.1145073103918319714@linux.beauty> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220921_002619_186242_6EB9CF1C X-CRM114-Status: GOOD ( 14.77 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , 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 Wed, Sep 21, 2022 at 04:34:32AM +0200, Li Chen wrote: > Hi Russell, > > ---- On Tue, 20 Sep 2022 12:14:24 +0200 Russell King (Oracle) wrote --- > > On Tue, Sep 20, 2022 at 11:09:38AM +0100, Russell King (Oracle) wrote: > > Oh, I just remembered an additional detail. There was the irqbalance > > daemon that used to work at that time which would do the distribution > > from userspace - and it knew various policies about interrupts that > > were found to be beneficial on x86. Such as not moving busy ethernet > > interrupts amongst the CPUs due to networking paths being "hot" in the > > cache, vs other interrupts where that didn't matter so much. > > Can you help paste the irqbalance daemon project link? I want to learn more > about it, thanks. Searching google for "irqbalance source" gives me as the first link: https://github.com/Irqbalance/irqbalance -- RMK's Patch system: https://www.armlinux.org.uk/developer/patches/ FTTP is here! 40Mbps down 10Mbps up. Decent connectivity at last! _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel