From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759383Ab3JOP1w (ORCPT ); Tue, 15 Oct 2013 11:27:52 -0400 Received: from mail-ee0-f41.google.com ([74.125.83.41]:53631 "EHLO mail-ee0-f41.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1759329Ab3JOP1v (ORCPT ); Tue, 15 Oct 2013 11:27:51 -0400 Date: Tue, 15 Oct 2013 17:27:47 +0200 From: Ingo Molnar To: Peter Zijlstra Cc: Arnaldo Carvalho de Melo , David Ahern , linux-kernel@vger.kernel.org, Frederic Weisbecker , Jiri Olsa , Namhyung Kim , Mike Galbraith , Stephane Eranian Subject: Re: [PATCH 3/3] perf record: mmap output file Message-ID: <20131015152747.GA15979@gmail.com> References: <1381289214-24885-1-git-send-email-dsahern@gmail.com> <1381289214-24885-4-git-send-email-dsahern@gmail.com> <20131009055957.GA7664@gmail.com> <525D4B5F.4090005@gmail.com> <20131015143245.GB9828@ghostprotocols.net> <20131015143819.GM10651@twins.programming.kicks-ass.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20131015143819.GM10651@twins.programming.kicks-ass.net> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org * Peter Zijlstra wrote: > On Tue, Oct 15, 2013 at 11:32:45AM -0300, Arnaldo Carvalho de Melo wrote: > > > Jiri and PeterZ probaby will have comments here... ;-) :-) > > The only complication with splice is the vmalloc support; other than > that it should be fairly straight fwd. In the initial version we could skip splice support for vmalloc ring-buffer, to keep things simple. Wanna send a patch for people to try? Looks like there's real interest in speeding up perf record as much as possible! Thanks, Ingo