From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sebastian Andrzej Siewior Subject: Re: [PATCH RFC] rdtscbench: a nohz_full validation and benchmarking tool Date: Fri, 11 Dec 2015 17:26:07 +0100 Message-ID: <20151211162607.GD6720@linutronix.de> References: <1440189958-6959-1-git-send-email-isaac.griswoldsteiner@ni.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Cc: williams@redhat.com, jkacur@redhat.com, linux-rt-users@vger.kernel.org, joshc@ni.com, Isaac Griswold-Steiner To: Isaac Griswold-Steiner Return-path: Received: from www.linutronix.de ([62.245.132.108]:47096 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751799AbbLKQ0K (ORCPT ); Fri, 11 Dec 2015 11:26:10 -0500 Content-Disposition: inline In-Reply-To: <1440189958-6959-1-git-send-email-isaac.griswoldsteiner@ni.com> Sender: linux-rt-users-owner@vger.kernel.org List-ID: * Isaac Griswold-Steiner | 2015-08-21 15:45:58 [-0500]: >From: Isaac Griswold-Steiner > >rdtscbench is a cyclictest-like tool that spawns a thread per cpu. Each thread >measures the difference in cycle count (using the tsc) during the execution of a >tight loop. > >This is a simple tool intended to be used for the validation of nohz_full CPU >configurations. As the validation of nohz_full CPUs is the objective, the tool >avoids the usage of system calls, timers, or anything that might break nohz_full. > >Signed-off-by: Isaac Griswold-Steiner jkacur, williams: did you guys took a look on it? Sebastian