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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 10753C433FE for ; Tue, 11 Oct 2022 19:12:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229671AbiJKTMP (ORCPT ); Tue, 11 Oct 2022 15:12:15 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55458 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229557AbiJKTMM (ORCPT ); Tue, 11 Oct 2022 15:12:12 -0400 Received: from sin.source.kernel.org (sin.source.kernel.org [IPv6:2604:1380:40e1:4800::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5833C38478 for ; Tue, 11 Oct 2022 12:12:11 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by sin.source.kernel.org (Postfix) with ESMTPS id B2C7CCE17F8 for ; Tue, 11 Oct 2022 19:12:07 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 886E1C433C1; Tue, 11 Oct 2022 19:12:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1665515525; bh=Z274Y55fxl3ROLH7kNnUBLHGgVMegcngw5GKYKX5RFA=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=LTzJKMTBkVOb0LyiFYAXUmupa/oDlihFElTSf/sEko+55LLXjrpw6jeqifcPcwdgH c60tbV68fcWGFqtcQTV1UW4x+ncz2+zY12coVvclNoYLT3jG0ouCi7aMr7d9LPE9ar wNF3jEwq5Fe5mqEJNQOgEBxR/0woO5vyEbE3imUK44gqoQIryURrq70v5ZqGeK3GXw PW9w/HtQHrq9k7c6vlb8dFDQFdD9dD1Sq97KdG8mgOw3DGL73rgc8YQ30N5coeeIUL k4ypNyK4oY72wQzvnq0PNBNpMd4MRi05iyUyxc+jcLwMdxlhe/VYy/ojI8pZJtwfqO kzqyF0D4nsjdA== Date: Tue, 11 Oct 2022 21:12:03 +0200 From: Frederic Weisbecker To: Xiongfeng Wang Cc: "Paul E . McKenney" , LKML , Peter Zijlstra , Phil Auld , Alex Belits , Nicolas Saenz Julienne , Marco Elver , Neeraj Upadhyay , Thomas Gleixner , Nicolas Saenz Julienne , Max Filippov , Yu Liao , Boqun Feng , Marcelo Tosatti , kernel test robot , Paul Gortmaker , Uladzislau Rezki , Joel Fernandes Subject: Re: [PATCH 00/20] rcu/context-tracking: Merge RCU eqs-dynticks counter to context tracking v5 Message-ID: <20221011191203.GA1051279@lothringen> References: <20220628131619.2109651-1-frederic@kernel.org> <43a38198-d80f-2135-646c-db7e7990a401@huawei.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <43a38198-d80f-2135-646c-db7e7990a401@huawei.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Oct 11, 2022 at 07:37:48PM +0800, Xiongfeng Wang wrote: > Hi, Frederic > > Thanks for push RCU dynticks counters to upstream. It is very useful. After it > is done, do we have plan to revive the sys-idle feature and use it to shutdown > the tick on the last housekeeping when the whole system is idle. I'm very glad > to help test it if you have some demo patches on your personal repo. There is no plan yet but some other people seem to be interested. Would you like to try to revive it yourself? Otherwise I may do it someday but I have quite some work to complete first (ie: making CPU isolation tunable through cpusets). Thanks.