From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mailout03.sul.t-online.com (mailout03.sul.t-online.com [194.25.134.81]) by ozlabs.org (Postfix) with ESMTP id 064F62BC0F for ; Fri, 22 Oct 2004 08:34:32 +1000 (EST) To: Zajac Adam-AAZ004 From: Wolfgang Denk Mime-version: 1.0 Content-type: text/plain; charset=ISO-8859-1 In-reply-to: Your message of "Thu, 21 Oct 2004 16:55:13 CDT." Date: Fri, 22 Oct 2004 00:34:04 +0200 Sender: wd@denx.de Message-Id: <20041021223409.7BD1EC146A@atlas.denx.de> Cc: linuxppc-embedded@ozlabs.org Subject: Re: Help on tuning the Linux kernel for soft real-time requiremen ts List-Id: Linux on Embedded PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , In message you wrote: > > Gerald, you may be right about this. Although I still don't know which of > the threads in our system cause the serial resource contention, I Check the console driver first. > BTW, are you guys aware of any tool that could help me debug the threads > that would concurrently try to access shared resources? > Do you think LTT would be helpful for this particular problem (serial driver LTT is certaily useful; but be aware that it may generate a of data in short time, which then needs a lot of work to really understand what's going on ;-) > contention that leads to missing soft real-time deadlines)? I'm not exaclty sure I really understand what you are asking for. Isn't sometimes missing the deadlines what the "soft" is standing for? ;-) Best regards, Wolfgang Denk -- Software Engineering: Embedded and Realtime Systems, Embedded Linux Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@denx.de There's another way to survive. Mutual trust -- and help. -- Kirk, "Day of the Dove", stardate unknown