From mboxrd@z Thu Jan 1 00:00:00 1970 From: Neil Horman Subject: Re: [PATCH 2/3] net: skb ftracer - Add config option to enable new ftracer (v3) Date: Thu, 13 Aug 2009 11:20:45 -0400 Message-ID: <20090813152045.GB16682@hmsreliant.think-freely.org> References: <20090807202130.GA26677@hmsreliant.think-freely.org> <20090813145917.GA16521@hmsreliant.think-freely.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: davem@davemloft.net, rostedt@goodmis.org To: netdev@vger.kernel.org Return-path: Received: from charlotte.tuxdriver.com ([70.61.120.58]:50562 "EHLO smtp.tuxdriver.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750845AbZHMPUq (ORCPT ); Thu, 13 Aug 2009 11:20:46 -0400 Content-Disposition: inline In-Reply-To: <20090813145917.GA16521@hmsreliant.think-freely.org> Sender: netdev-owner@vger.kernel.org List-ID: skb allocation / consumption corelator - Add config option This patch adds a Kconfig option to enable the addtition of the skb source tracer. Signed-off-by: Neil Horman Kconfig | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/kernel/trace/Kconfig b/kernel/trace/Kconfig index 019f380..dcb263d 100644 --- a/kernel/trace/Kconfig +++ b/kernel/trace/Kconfig @@ -234,6 +234,16 @@ config BOOT_TRACER You must pass in initcall_debug and ftrace=initcall to the kernel command line to enable this on bootup. +config SKB_SOURCES_TRACER + bool "Trace skb source information + select GENERIC_TRACER + help + This tracer helps developers/sysadmins correlate skb allocation and + consumption. The idea being that some processes will primarily consume data + that was allocated on certain numa nodes. By being able to visualize which + nodes the data was allocated on, a sysadmin or developer can optimize the + scheduling of those processes to cut back on cross node chatter. + config TRACE_BRANCH_PROFILING bool select GENERIC_TRACER