From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752469AbaGJMB1 (ORCPT ); Thu, 10 Jul 2014 08:01:27 -0400 Received: from zene.cmpxchg.org ([85.214.230.12]:52635 "EHLO zene.cmpxchg.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751345AbaGJMB0 (ORCPT ); Thu, 10 Jul 2014 08:01:26 -0400 Date: Thu, 10 Jul 2014 08:01:20 -0400 From: Johannes Weiner To: Mel Gorman Cc: Andrew Morton , Linux Kernel , Linux-MM , Linux-FSDevel Subject: Re: [PATCH 1/6] mm: pagemap: Avoid unnecessary overhead when tracepoints are deactivated Message-ID: <20140710120120.GI29639@cmpxchg.org> References: <1404893588-21371-1-git-send-email-mgorman@suse.de> <1404893588-21371-2-git-send-email-mgorman@suse.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1404893588-21371-2-git-send-email-mgorman@suse.de> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Jul 09, 2014 at 09:13:03AM +0100, Mel Gorman wrote: > The LRU insertion and activate tracepoints take PFN as a parameter forcing > the overhead to the caller. Move the overhead to the tracepoint fast-assign > method to ensure the cost is only incurred when the tracepoint is active. > > Signed-off-by: Mel Gorman Acked-by: Johannes Weiner From mboxrd@z Thu Jan 1 00:00:00 1970 From: Johannes Weiner Subject: Re: [PATCH 1/6] mm: pagemap: Avoid unnecessary overhead when tracepoints are deactivated Date: Thu, 10 Jul 2014 08:01:20 -0400 Message-ID: <20140710120120.GI29639@cmpxchg.org> References: <1404893588-21371-1-git-send-email-mgorman@suse.de> <1404893588-21371-2-git-send-email-mgorman@suse.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: Andrew Morton , Linux Kernel , Linux-MM , Linux-FSDevel To: Mel Gorman Return-path: Content-Disposition: inline In-Reply-To: <1404893588-21371-2-git-send-email-mgorman@suse.de> Sender: owner-linux-mm@kvack.org List-Id: linux-fsdevel.vger.kernel.org On Wed, Jul 09, 2014 at 09:13:03AM +0100, Mel Gorman wrote: > The LRU insertion and activate tracepoints take PFN as a parameter forcing > the overhead to the caller. Move the overhead to the tracepoint fast-assign > method to ensure the cost is only incurred when the tracepoint is active. > > Signed-off-by: Mel Gorman Acked-by: Johannes Weiner -- 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