Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932491Ab2EUW5x (ORCPT ); Mon, 21 May 2012 18:57:53 -0400 Received: from mga14.intel.com ([143.182.124.37]:50068 "EHLO mga14.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756593Ab2EUW5w (ORCPT ); Mon, 21 May 2012 18:57:52 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.71,315,1320652800"; d="scan'208";a="145955250" From: Andi Kleen To: Joe Korty Cc: stasn77@gmail.com, linux-kernel@vger.kernel.org Subject: Re: [PATCH] port jRCU from 3.3 to 3.4 References: <20120521184528.GA4145@tsunami.ccur.com> Date: Mon, 21 May 2012 15:57:44 -0700 In-Reply-To: <20120521184528.GA4145@tsunami.ccur.com> (Joe Korty's message of "Mon, 21 May 2012 14:45:28 -0400") Message-ID: User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/23.3 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 649 Lines: 16 Joe Korty writes: > + * > + * jRCU assumes that the frames are large enough that architecture barrier > + * operations performed in one frame have fully completed by the start of > + * the next. This period is presumed to be in the tens of microseconds, so > + * it may not be wise to run jRCU at a frame rate under 100 usecs. This sounds like a very dangerous assumption. -Andi -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/