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 40662C61DA4 for ; Fri, 3 Feb 2023 19:25:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233070AbjBCTZw (ORCPT ); Fri, 3 Feb 2023 14:25:52 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59840 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232916AbjBCTZr (ORCPT ); Fri, 3 Feb 2023 14:25:47 -0500 X-Greylist: delayed 1519 seconds by postgrey-1.37 at lindbergh.monkeyblade.net; Fri, 03 Feb 2023 11:25:26 PST Received: from out-77.mta1.migadu.com (out-77.mta1.migadu.com [95.215.58.77]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 998709AFEB for ; Fri, 3 Feb 2023 11:25:25 -0800 (PST) Date: Fri, 3 Feb 2023 11:25:16 -0800 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1675452324; 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: in-reply-to:in-reply-to:references:references; bh=xemEPS75g6CyaGYVTuNx4T5APXnPBUE9kBl1lVKlrTM=; b=ah/EreyLTKURus8ZQYbvdkwIeyZn+6VcKKQqlNdRE+EKzIxTpJdYzfdCWnCx8dIjocnERr FabQHAoVFjL7/nCF4j6JwNDZ3IxOsSqSwgKBVNOg8H1r2A4U/yDR8aWkgHFDw5EsvHH5ad z01tV+bx4YqgPBnEsnYYSL0KSmKrlEo= X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. From: Roman Gushchin To: Michal Hocko Cc: Marcelo Tosatti , Leonardo =?iso-8859-1?Q?Br=E1s?= , Johannes Weiner , Shakeel Butt , Muchun Song , Andrew Morton , cgroups@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, Frederic Weisbecker Subject: Re: [PATCH v2 0/5] Introduce memcg_stock_pcp remote draining Message-ID: References: <9e61ab53e1419a144f774b95230b789244895424.camel@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Migadu-Flow: FLOW_OUT Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Feb 03, 2023 at 04:21:09PM +0100, Michal Hocko wrote: > OK, so this is a speculative patch. cpu_is_isolated doesn't exist yet. I > have talked to Frederic off-list and he is working on an implementation. > I will be offline next whole week (will be back Feb 13th) so I am > sending this early but this patch cannot be merged without his one of > course. > > I have tried to summarize the reasoning behind both approach should we > ever need to revisit this approach. For now I strongly believe a simpler > solution should be preferred. > > Roman, I have added your ack as you indicated but if you disagree with > the reasoning please let me know. Great, thank you for preparing it up! Really nice summary. My ack definitely applies. If you want, feel free to add a "Suggested-by: Roman Gushchin " tag to blame me later :) Thank you!