From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S935238AbXFGSwq (ORCPT ); Thu, 7 Jun 2007 14:52:46 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1761796AbXFGSwj (ORCPT ); Thu, 7 Jun 2007 14:52:39 -0400 Received: from ms-smtp-04.nyroc.rr.com ([24.24.2.58]:41071 "EHLO ms-smtp-04.nyroc.rr.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756794AbXFGSwi (ORCPT ); Thu, 7 Jun 2007 14:52:38 -0400 Subject: Re: [PATCH RT] convert RCU Preempt tasklet into softirq. From: Steven Rostedt To: paulmck@linux.vnet.ibm.com Cc: john stultz , Ingo Molnar , Thomas Gleixner , Oleg Nesterov , LKML , Dipankar Sarma , RT In-Reply-To: <1181240819.10408.14.camel@localhost.localdomain> References: <1181180051.18444.31.camel@localhost.localdomain> <20070607041411.GB1783@linux.vnet.ibm.com> <1181226138.18444.54.camel@localhost.localdomain> <20070607161754.GA11941@linux.vnet.ibm.com> <1181240819.10408.14.camel@localhost.localdomain> Content-Type: text/plain Date: Thu, 07 Jun 2007 14:51:47 -0400 Message-Id: <1181242307.10408.17.camel@localhost.localdomain> Mime-Version: 1.0 X-Mailer: Evolution 2.6.3 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 2007-06-07 at 14:26 -0400, Steven Rostedt wrote: > Following Dipankar's lead, I converted the tasklet in rcupreempt.c into > a softirq. > > I've compiled and booted with this patch, but ran no other tests. There might still be an issue here. With the patch I'm getting a really slow response time on networking. But that be because of other patches I have applied. I'll remove those other patches and see if this is still an issue. /me booting with noapic to avoid the IO APIC issues. -- Steve