Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758338Ab0GHRfj (ORCPT ); Thu, 8 Jul 2010 13:35:39 -0400 Received: from bombadil.infradead.org ([18.85.46.34]:34543 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756333Ab0GHRfi (ORCPT ); Thu, 8 Jul 2010 13:35:38 -0400 Date: Thu, 8 Jul 2010 13:35:15 -0400 From: Christoph Hellwig To: Eric B Munson Cc: Peter Zijlstra , Eric B Munson , akpm@linux-foundation.org, mingo@redhat.com, hugh.dickins@tiscali.co.uk, riel@redhat.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, anton@samba.org Subject: Re: [PATCH] Add trace event for munmap Message-ID: <20100708173515.GA11652@infradead.org> References: <1278597931-26855-1-git-send-email-emunson@mgebm.net> <1278598955.1900.152.camel@laptop> <20100708144407.GA8141@us.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100708144407.GA8141@us.ibm.com> User-Agent: Mutt/1.5.20 (2009-08-17) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 955 Lines: 23 On Thu, Jul 08, 2010 at 03:44:07PM +0100, Eric B Munson wrote: > On Thu, 08 Jul 2010, Peter Zijlstra wrote: > > > On Thu, 2010-07-08 at 15:05 +0100, Eric B Munson wrote: > > > This patch adds a trace event for munmap which will record the starting > > > address of the unmapped area and the length of the umapped area. This > > > event will be used for modeling memory usage. > > > > Does it make sense to couple this with a mmap()/mremap()/brk() > > tracepoint? > > > > We were using the mmap information collected by perf, but I think > those might also be useful so I will send a followup patch to add > them. What kind of infrastructure is perf using for recording mmap()/mremap()/brk() information? -- 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/