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=-1.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,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 700ACC43603 for ; Mon, 9 Dec 2019 15:55:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3965F2077B for ; Mon, 9 Dec 2019 15:55:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1575906917; bh=s4orNUHN0J0s3pQE1X+WGrJPoZrPr0vnnT4uBvizWKg=; h=To:Subject:Date:From:Cc:In-Reply-To:References:List-ID:From; b=tUDmbusBypf7V4SeCxCP0dLKzz8pCZo9ZEYB/dmL6E4h1ZbK1FeJstr4IyzPnQZ0s 6+s+PZbQwH3lip0QBdhoiwMFu+zG4iWpnDy3jH6pv9Bij6Kb3iVre4xj132LpVCD63 cFZ8aNi4IArZAwwU1Z1DHXUHOJRXQ1136xrAvZnc= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726584AbfLIPzQ (ORCPT ); Mon, 9 Dec 2019 10:55:16 -0500 Received: from inca-roads.misterjones.org ([213.251.177.50]:44313 "EHLO inca-roads.misterjones.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726080AbfLIPzP (ORCPT ); Mon, 9 Dec 2019 10:55:15 -0500 Received: from www-data by cheepnis.misterjones.org with local (Exim 4.80) (envelope-from ) id 1ieLNI-0002w7-5L; Mon, 09 Dec 2019 16:55:04 +0100 To: Qais Yousef Subject: Re: [PATCH RFC 1/1] genirq: Make threaded handler use irq affinity for managed interrupt X-PHP-Originating-Script: 0:main.inc MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Date: Mon, 09 Dec 2019 15:55:03 +0000 From: Marc Zyngier Cc: Hannes Reinecke , John Garry , Ming Lei , , , , , , , , , , In-Reply-To: <20191209154932.dyysdktbosi3vlbx@e107158-lin.cambridge.arm.com> References: <1575642904-58295-1-git-send-email-john.garry@huawei.com> <1575642904-58295-2-git-send-email-john.garry@huawei.com> <20191207080335.GA6077@ming.t460p> <78a10958-fdc9-0576-0c39-6079b9749d39@huawei.com> <305198e5-f76f-ded4-946b-9cfade18f08c@suse.de> <20191209154932.dyysdktbosi3vlbx@e107158-lin.cambridge.arm.com> Message-ID: <3e974fa60d0b5371e93fce86b23f686d@www.loen.fr> X-Sender: maz@kernel.org User-Agent: Roundcube Webmail/0.7.2 X-SA-Exim-Connect-IP: X-SA-Exim-Rcpt-To: qais.yousef@arm.com, hare@suse.de, john.garry@huawei.com, ming.lei@redhat.com, tglx@linutronix.de, chenxiang66@hisilicon.com, bigeasy@linutronix.de, linux-kernel@vger.kernel.org, hare@suse.com, hch@lst.de, axboe@kernel.dk, bvanassche@acm.org, peterz@infradead.org, mingo@redhat.com X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on cheepnis.misterjones.org); SAEximRunCond expanded to false Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2019-12-09 15:49, Qais Yousef wrote: > On 12/09/19 15:17, Marc Zyngier wrote: >> On 2019-12-09 15:09, Hannes Reinecke wrote: >> >> [slight digression] >> >> > My idea here is slightly different: can't we leverage SMT? >> > Most modern CPUs do SMT (I guess even ARM does it nowadays) >> > (Yes, I know about spectre and things. We're talking performance >> here >> > :-) >> >> I only know two of those: Cavium TX2 and ARM Neoverse-E1. > > There's the Cortex-A65 too. Which is the exact same core as E1 (but don't tell anyone... ;-). M. -- Jazz is not dead. It just smells funny...