From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wm0-f70.google.com (mail-wm0-f70.google.com [74.125.82.70]) by kanga.kvack.org (Postfix) with ESMTP id 76F926B0253 for ; Mon, 2 May 2016 11:01:13 -0400 (EDT) Received: by mail-wm0-f70.google.com with SMTP id s63so79814351wme.2 for ; Mon, 02 May 2016 08:01:13 -0700 (PDT) Received: from mail-wm0-x22f.google.com (mail-wm0-x22f.google.com. [2a00:1450:400c:c09::22f]) by mx.google.com with ESMTPS id mb4si34535527wjb.202.2016.05.02.08.01.12 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 02 May 2016 08:01:12 -0700 (PDT) Received: by mail-wm0-x22f.google.com with SMTP id v200so23026391wmv.1 for ; Mon, 02 May 2016 08:01:12 -0700 (PDT) Date: Mon, 2 May 2016 18:01:10 +0300 From: "Kirill A. Shutemov" Subject: Re: mm: pages are not freed from lru_add_pvecs after process termination Message-ID: <20160502150109.GB24419@node.shutemov.name> References: <5720F2A8.6070406@intel.com> <572766A7.9090406@suse.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <572766A7.9090406@suse.cz> Sender: owner-linux-mm@kvack.org List-ID: To: Vlastimil Babka Cc: Dave Hansen , "Odzioba, Lukasz" , "linux-kernel@vger.kernel.org" , "linux-mm@kvack.org" , "Shutemov, Kirill" , "Anaczkowski, Lukasz" On Mon, May 02, 2016 at 04:39:35PM +0200, Vlastimil Babka wrote: > On 04/27/2016 07:11 PM, Dave Hansen wrote: > >6. Perhaps don't use the LRU pagevecs for large pages. It limits the > > severity of the problem. > > I think that makes sense. Being large already amortizes the cost per base > page much more than pagevecs do (512 vs ~22 pages?). We try to do this already, don't we? Any spefic case where we have THPs on pagevecs? -- Kirill A. Shutemov -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org