From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757533Ab0KRNVW (ORCPT ); Thu, 18 Nov 2010 08:21:22 -0500 Received: from canuck.infradead.org ([134.117.69.58]:56841 "EHLO canuck.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753034Ab0KRNVV convert rfc822-to-8bit (ORCPT ); Thu, 18 Nov 2010 08:21:21 -0500 Subject: Re: [RFC][PATCH 0/2] tracing: Have trace_printk()s in the events/ directory From: Peter Zijlstra To: Frederic Weisbecker Cc: Thomas Gleixner , Steven Rostedt , linux-kernel@vger.kernel.org, Ingo Molnar , Andrew Morton , Darren Hart , Linus Torvalds , "jason.wessel" , "Ted Ts'o" , Mathieu Desnoyers In-Reply-To: <20101118125307.GB5344@nowhere> References: <20101118035803.453609353@goodmis.org> <1290076866.2109.1305.camel@laptop> <20101118125307.GB5344@nowhere> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8BIT Date: Thu, 18 Nov 2010 14:21:26 +0100 Message-ID: <1290086486.2109.1512.camel@laptop> Mime-Version: 1.0 X-Mailer: Evolution 2.30.3 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 2010-11-18 at 13:53 +0100, Frederic Weisbecker wrote: > > > An other solution, which have been talking with Thomas yesterday, would be > to allow having a single fd for several perf_events at once. That would > solve some problems when you have hundreds of events opened (think about > wide tracing, or use of all individual syscalls). I'm working on that, but that doesn't make me like this crap any more.