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 04A93C433EF for ; Thu, 10 Feb 2022 11:04:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240522AbiBJLEe (ORCPT ); Thu, 10 Feb 2022 06:04:34 -0500 Received: from mxb-00190b01.gslb.pphosted.com ([23.128.96.19]:39758 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240506AbiBJLEc (ORCPT ); Thu, 10 Feb 2022 06:04:32 -0500 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 84B77100B for ; Thu, 10 Feb 2022 03:04:33 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1644491072; 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=912gx4l8B914qXTe9ZjzFhB65u3s+B2paBTlsF2z1ag=; b=PVoQUHDVPug+U+m9s0XrwBsqSDLvSe3xXSH7R7NTNs61r936T79OocwcFXuybkhFCwT+Kj KJpsDz2jzBkwceDIv8ADX0UT2PfaXUhnhVXzH3fDum6N6SjI0Sz7VRDy3+AMp/ZpGpfS1P 7+9XCH0kOPfEZWMJ81fZ56UOjPxgcQo= Received: from mail-wr1-f71.google.com (mail-wr1-f71.google.com [209.85.221.71]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-658-SJc_f_JOPV2D4ByfYMOccA-1; Thu, 10 Feb 2022 06:04:31 -0500 X-MC-Unique: SJc_f_JOPV2D4ByfYMOccA-1 Received: by mail-wr1-f71.google.com with SMTP id h24-20020adfaa98000000b001e33eb81e71so2348904wrc.9 for ; Thu, 10 Feb 2022 03:04:31 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:message-id:subject:from:to:cc:date:in-reply-to :references:user-agent:mime-version:content-transfer-encoding; bh=912gx4l8B914qXTe9ZjzFhB65u3s+B2paBTlsF2z1ag=; b=FE8O/7SS01JW3HH3yVHwj0aWVdnItAlEKSE5k9tmcPtPHmjl/wSf5BUNVrPJu4KoyR MrIqSEPLt2OHrKTy2bvhWGVLeyx2TcG0vRLiZpRDyPZXrAqcdRaOjKKVrD7D3z0o/BHb /t0j/uMEyVuye48zWf8hQvPTpCzQzdFnPvslotyMgh9m+a6pRtN1DHk/Rj+o3n2L7t37 8vS42vCyzVENo3kPdq5ywM2ee2riTyLO5q/0F9MKz+6sWfpBcf8u5fcoYeN7bJstK6dP +ExQy/RCASk8tERaiV9fLs7s03F3f2rO0qnfvlRiz3/JUYTRqQeCAKtwT5At+42PuKyW JiRA== X-Gm-Message-State: AOAM532l2/9E8nQn5bkirVCWyLbrPu8kdWmvPE5f7RmiRF3d3ljIPgpr 4acFsfiLx20pNCFxNnjB+1jXcJGBxdKQXLzBgdPm05w1oBpxInfgAeqTLOGZaRTQPNkjLjA6CG+ 5Gi0YToCKCCkUiQkG7HtztlJm X-Received: by 2002:a5d:6090:: with SMTP id w16mr5795775wrt.250.1644491070277; Thu, 10 Feb 2022 03:04:30 -0800 (PST) X-Google-Smtp-Source: ABdhPJxJBi0FaA2kpZ+9gAipQwSIBhfk2Tp8z4y5Nuyr3Qb6xYWh/85bR+5Pqm58wNckCW5VmxgUvw== X-Received: by 2002:a5d:6090:: with SMTP id w16mr5795750wrt.250.1644491070061; Thu, 10 Feb 2022 03:04:30 -0800 (PST) Received: from ?IPv6:2a0c:5a80:1204:1500:37e7:8150:d9df:36f? ([2a0c:5a80:1204:1500:37e7:8150:d9df:36f]) by smtp.gmail.com with ESMTPSA id g9sm19432968wri.95.2022.02.10.03.04.29 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 10 Feb 2022 03:04:29 -0800 (PST) Message-ID: <41e393e3eb7d2909130906954309acfe980238db.camel@redhat.com> Subject: Re: [PATCH 0/2] mm/page_alloc: Remote per-cpu lists drain support From: Nicolas Saenz Julienne To: Xiongfeng Wang , akpm@linux-foundation.org, mtosatti Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org, frederic@kernel.org, tglx@linutronix.de, mtosatti@redhat.com, mgorman@suse.de, linux-rt-users@vger.kernel.org, vbabka@suse.cz, cl@linux.com, paulmck@kernel.org, willy@infradead.org Date: Thu, 10 Feb 2022 12:04:28 +0100 In-Reply-To: <8cf34eed-be5a-1aae-0523-c2de9e087cb6@huawei.com> References: <20220208100750.1189808-1-nsaenzju@redhat.com> <8cf34eed-be5a-1aae-0523-c2de9e087cb6@huawei.com> Content-Type: text/plain; charset="UTF-8" User-Agent: Evolution 3.42.3 (3.42.3-1.fc35) MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 2022-02-10 at 18:59 +0800, Xiongfeng Wang wrote: > Hi Nicolas, > > I found there are several 'lru_add_drain_per_cpu()' worker thread on the > NOHZ_FULL CPUs. I am just wondering do you have plan to add support for remote > per-cpu LRU pagevec drain ? Yes, this is something we've been meaning to fix too. But haven't started looking into it yet (maybe Marcelo can contradict me here). Regards, Nicolas