From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-10.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 83C0FC433DF for ; Tue, 23 Jun 2020 00:31:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5A55820720 for ; Tue, 23 Jun 2020 00:31:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1592872306; bh=2MReE7tg93XK7F6VlsZb0HBX0126pFFv2a8PRqW+SfI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=SXpLPaAfweUaidowXm+cVyY57uS54pbh9rvYvehC5aL6Kydm6a2hkDGruXZCq//9v q4/4BkbtOE8BW4kbz2ZOVdK4ZhrP9a7PCrKYWWhag+dPqv2TiYeT/ZwDK+ydHFKXGt 7LbwznVplDtGCB7s8ft/AtnwgVa87Dj/vkHUeuXA= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731896AbgFWAb0 (ORCPT ); Mon, 22 Jun 2020 20:31:26 -0400 Received: from mail.kernel.org ([198.145.29.99]:55174 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731693AbgFWAaT (ORCPT ); Mon, 22 Jun 2020 20:30:19 -0400 Received: from paulmck-ThinkPad-P72.home (50-39-105-78.bvtn.or.frontiernet.net [50.39.105.78]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 7546D20C56; Tue, 23 Jun 2020 00:30:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1592872219; bh=2MReE7tg93XK7F6VlsZb0HBX0126pFFv2a8PRqW+SfI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=gQWwDhXfgF5kKnk2R86QhLsyW8Hg/qgizlzB99udRv59rxm7u/xfFQeHDYKKRP52I YH+rDQwGTgEc4O/Kj7HfQGMC9E3aCn+qClVaZJMMyvx7VCf4rzBI9ahcHcO+5LbQbQ vxG1YnuyC7szbTqTHl+m4aGKq4NP9BsOGFdofM0g= From: paulmck@kernel.org To: rcu@vger.kernel.org Cc: linux-kernel@vger.kernel.org, kernel-team@fb.com, mingo@kernel.org, jiangshanlai@gmail.com, dipankar@in.ibm.com, akpm@linux-foundation.org, mathieu.desnoyers@efficios.com, josh@joshtriplett.org, tglx@linutronix.de, peterz@infradead.org, rostedt@goodmis.org, dhowells@redhat.com, edumazet@google.com, fweisbec@gmail.com, oleg@redhat.com, joel@joelfernandes.org, "Paul E. McKenney" Subject: [PATCH tip/core/rcu 21/30] refperf: Adjust refperf.loop default value Date: Mon, 22 Jun 2020 17:30:04 -0700 Message-Id: <20200623003013.26252-21-paulmck@kernel.org> X-Mailer: git-send-email 2.9.5 In-Reply-To: <20200623002941.GA26089@paulmck-ThinkPad-P72> References: <20200623002941.GA26089@paulmck-ThinkPad-P72> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: "Paul E. McKenney" With the various measurement optimizations, 10,000 loops normally suffices. This commit therefore reduces the refperf.loops default value from 10,000,000 to 10,000. Signed-off-by: Paul E. McKenney --- kernel/rcu/refperf.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/rcu/refperf.c b/kernel/rcu/refperf.c index 57a750b..063eeb0 100644 --- a/kernel/rcu/refperf.c +++ b/kernel/rcu/refperf.c @@ -61,7 +61,7 @@ torture_param(int, verbose, 0, "Enable verbose debugging printk()s"); torture_param(int, holdoff, IS_BUILTIN(CONFIG_RCU_REF_PERF_TEST) ? 10 : 0, "Holdoff time before test start (s)"); // Number of loops per experiment, all readers execute operations concurrently. -torture_param(long, loops, 10000000, "Number of loops per experiment."); +torture_param(long, loops, 10000, "Number of loops per experiment."); // Number of readers, with -1 defaulting to about 75% of the CPUs. torture_param(int, nreaders, -1, "Number of readers, -1 for 75% of CPUs."); // Number of runs. -- 2.9.5