Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751312AbcCHSbz (ORCPT ); Tue, 8 Mar 2016 13:31:55 -0500 Received: from mail-wm0-f65.google.com ([74.125.82.65]:33425 "EHLO mail-wm0-f65.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751238AbcCHSbn (ORCPT ); Tue, 8 Mar 2016 13:31:43 -0500 Date: Tue, 8 Mar 2016 19:31:38 +0100 From: Ingo Molnar To: Dmitry Vyukov Cc: Peter Zijlstra , Wang Nan , Ingo Molnar , LKML , He Kuang , Alexei Starovoitov , Arnaldo Carvalho de Melo , Brendan Gregg , Jiri Olsa , Masami Hiramatsu , Namhyung Kim , Zefan Li , pi3orama@163.com Subject: Re: [RESEND PATCH 0/5] perf core: Support overwrite ring buffer Message-ID: <20160308183138.GA15747@gmail.com> References: <20160308164859.GA27516@gmail.com> <20160308172425.GA3017@gmail.com> <20160308173709.GC3017@gmail.com> <20160308174856.GA28862@gmail.com> <20160308175753.GA3015@gmail.com> <20160308180238.GA4220@gmail.com> <20160308182235.GB4220@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20160308182235.GB4220@gmail.com> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 751 Lines: 25 * Ingo Molnar wrote: > so it's eating about 10% of system overhead despite doing nothing (!). > > The workaround for that systemd bug is a brutal: > > [root@fomalhaut ~]# mv /usr/lib/systemd/systemd-journald /usr/lib/systemd/systemd-journald.dontuse > [root@fomalhaut ~]# Except that if I do that, systemd stops working altogether - for example: [root@fomalhaut ~]# systemctl disable audit Failed to execute operation: Connection timed out only reinstating the binary and re-starting journald fixes that. systemd is the most passive-agressive utility I've ever seen. So it's not possible to disable journald. Does anyone know any solution for that, which does not involve reinstalling a whole distro? Thanks, Ingo