From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-out.m-online.net (mail-out.m-online.net [212.18.0.9]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id D58762C00E2 for ; Sun, 27 Oct 2013 21:36:19 +1100 (EST) To: Scott Wood From: Wolfgang Denk Subject: Re: [PATCH] [RFC] Emulate "lwsync" to run standard user land on e500 cores MIME-Version: 1.0 Content-type: text/plain; charset=UTF-8 In-reply-to: <1382697373.3926.36.camel@aoeu.buserror.net> References: <1382081880-6666-1-git-send-email-wd@denx.de> <39CCEB38-1D9B-4918-B8F4-148D4E90FE21@kernel.crashing.org> <1382523314.3926.21.camel@aoeu.buserror.net> <1382607919.9395.56.camel@pasglop> <6BFC8EB0-1A75-41C3-985A-E3ED14846710@kernel.crashing.org> <1382697373.3926.36.camel@aoeu.buserror.net> Date: Sun, 27 Oct 2013 11:29:19 +0100 Message-Id: <20131027102919.794493811DD@gemini.denx.de> Cc: linuxppc-dev@lists.ozlabs.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Dear Scott, In message <1382697373.3926.36.camel@aoeu.buserror.net> you wrote: > > Has anyone measured how much this slows things down with a typical > userspace? In the applications I found to trigger this issue the number of traps is so small that I can't even reliably measure any difference. Best regards, Wolfgang Denk -- DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@denx.de When it is incorrect, it is, at least *authoritatively* incorrect. - Hitchiker's Guide To The Galaxy