From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Paul E. McKenney" Subject: Re: Does anyone use CONFIG_TINY_PREEMPT_RCU? Date: Tue, 13 Nov 2012 16:06:48 -0800 Message-ID: <20121114000648.GN2489@linux.vnet.ibm.com> References: <20121113004906.GA10557@linux.vnet.ibm.com> <201211132122.30259.tim01@vlsi.informatik.tu-darmstadt.de> <20121113212034.GD2489@linux.vnet.ibm.com> <201211140032.37320.tim01@vlsi.informatik.tu-darmstadt.de> Reply-To: paulmck@linux.vnet.ibm.com Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: linux-kernel@vger.kernel.org, linux-rt-users@vger.kernel.org, mingo@elte.hu, laijs@cn.fujitsu.com, dipankar@in.ibm.com, akpm@linux-foundation.org, mathieu.desnoyers@efficios.com, josh@joshtriplett.org, niv@us.ibm.com, tglx@linutronix.de, peterz@infradead.org, rostedt@goodmis.org, Valdis.Kletnieks@vt.edu, dhowells@redhat.com, edumazet@google.com, darren@dvhart.com, fweisbec@gmail.com, sbw@mit.edu, patches@linaro.org To: Tim Sander Return-path: Received: from e32.co.us.ibm.com ([32.97.110.150]:45923 "EHLO e32.co.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756079Ab2KNAW4 (ORCPT ); Tue, 13 Nov 2012 19:22:56 -0500 Received: from /spool/local by e32.co.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Tue, 13 Nov 2012 17:22:56 -0700 Content-Disposition: inline In-Reply-To: <201211140032.37320.tim01@vlsi.informatik.tu-darmstadt.de> Sender: linux-rt-users-owner@vger.kernel.org List-ID: On Wed, Nov 14, 2012 at 12:32:36AM +0100, Tim Sander wrote: > Hi Paul > > Sorry english somehow i tried to shoehorn more than one sentence into one > sentence in the last mail. > > OK, how much memory does your device have? > It's 128Mb of memory. That is a bit on the smaller side. But still quite large compared to the 15K difference between CONFIG_TREE_PREEMPT_RCU and CONFIG_TINY_PREEMPT_RCU. Thanx, Paul