Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932160AbbHMVOW (ORCPT ); Thu, 13 Aug 2015 17:14:22 -0400 Received: from mail-pa0-f49.google.com ([209.85.220.49]:33847 "EHLO mail-pa0-f49.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752222AbbHMVOU (ORCPT ); Thu, 13 Aug 2015 17:14:20 -0400 Date: Thu, 13 Aug 2015 14:14:18 -0700 From: =?iso-8859-1?Q?J=F6rn?= Engel To: Naoya Horiguchi Cc: David Rientjes , Andrew Morton , Mike Kravetz , "linux-mm@kvack.org" , "linux-kernel@vger.kernel.org" , Naoya Horiguchi Subject: Re: [PATCH v4 2/2] mm: hugetlb: proc: add HugetlbPages field to /proc/PID/status Message-ID: <20150813211418.GE8588@Sligo.logfs.org> References: <20150812000336.GB32192@hori1.linux.bs1.fc.nec.co.jp> <1439365520-12605-1-git-send-email-n-horiguchi@ah.jp.nec.com> <1439365520-12605-2-git-send-email-n-horiguchi@ah.jp.nec.com> <20150813004533.GA24716@hori1.linux.bs1.fc.nec.co.jp> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20150813004533.GA24716@hori1.linux.bs1.fc.nec.co.jp> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1386 Lines: 37 On Thu, Aug 13, 2015 at 12:45:33AM +0000, Naoya Horiguchi wrote: > From: Naoya Horiguchi > Subject: [PATCH] mm: hugetlb: proc: add HugetlbPages field to /proc/PID/status > > Currently there's no easy way to get per-process usage of hugetlb pages, which > is inconvenient because userspace applications which use hugetlb typically want > to control their processes on the basis of how much memory (including hugetlb) > they use. So this patch simply provides easy access to the info via > /proc/PID/status. > > With this patch, for example, /proc/PID/status shows a line like this: > > HugetlbPages: 20480 kB (10*2048kB) > > If your system supports and enables multiple hugepage sizes, the line looks > like this: > > HugetlbPages: 1069056 kB (1*1048576kB 10*2048kB) > > , so you can easily know how many hugepages in which pagesize are used by a > process. > > Signed-off-by: Naoya Horiguchi Acked-by: Joern Engel J?rn -- Computer system analysis is like child-rearing; you can do grievous damage, but you cannot ensure success." -- Tom DeMarco -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/