From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from sc8-sf-mx1-b.sourceforge.net ([10.3.1.91] helo=mail.sourceforge.net) by sc8-sf-list1.sourceforge.net with esmtp (Exim 4.30) id 1EyfId-0004OV-Qd for user-mode-linux-devel@lists.sourceforge.net; Mon, 16 Jan 2006 17:06:15 -0800 Received: from smtp003.mail.ukl.yahoo.com ([217.12.11.34]) by mail.sourceforge.net with smtp (Exim 4.44) id 1EyfIb-0007Vm-St for user-mode-linux-devel@lists.sourceforge.net; Mon, 16 Jan 2006 17:06:15 -0800 From: Blaisorblade Subject: Re: [uml-devel] [PATCH 9/11] UML - Implement soft interrupts References: <200601152139.k0FLdp1G027747@ccure.user-mode-linux.org> In-Reply-To: <200601152139.k0FLdp1G027747@ccure.user-mode-linux.org> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200601170124.32076.blaisorblade@yahoo.it> Sender: user-mode-linux-devel-admin@lists.sourceforge.net Errors-To: user-mode-linux-devel-admin@lists.sourceforge.net List-Unsubscribe: , List-Id: The user-mode Linux development list List-Post: List-Help: List-Subscribe: , List-Archive: Date: Tue, 17 Jan 2006 01:24:31 +0100 To: user-mode-linux-devel@lists.sourceforge.net Cc: Jeff Dike , akpm@osdl.org, linux-kernel@vger.kernel.org On Sunday 15 January 2006 22:39, Jeff Dike wrote: > This patch implements soft interrupts. Interrupt enabling and > disabling no longer map to sigprocmask. Rather, a flag is set > indicating whether interrupts may be handled. If a signal comes in > and interrupts are marked as OK, then it is handled normally. If > interrupts are marked as off, then the signal handler simply returns > after noting that a signal needs handling. When interrupts are enabled > later on, this pending signals flag is checked, and the IRQ handlers > are called at that point. ~25 %? Good! Which is delay vs. host? A curiosity - did you look at the similar code in Ingo Molnar's VCPU patch? I never found the time to split it out and compare differencies. I just remember it using assembler inserts for (maybe atomic) bitmask manipulations. -- Inform me of my mistakes, so I can keep imitating Homer Simpson's "Doh!". Paolo Giarrusso, aka Blaisorblade (Skype ID "PaoloGiarrusso", ICQ 215621894) http://www.user-mode-linux.org/~blaisorblade ___________________________________ Yahoo! Mail: gratis 1GB per i messaggi e allegati da 10MB http://mail.yahoo.it ------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Do you grep through log files for problems? Stop! Download the new AJAX search engine that makes searching your log files as easy as surfing the web. DOWNLOAD SPLUNK! http://ads.osdn.com/?ad_id=7637&alloc_id=16865&op=click _______________________________________________ User-mode-linux-devel mailing list User-mode-linux-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-devel