From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mark Hapke Subject: interrupt latency Date: Sat, 20 Jul 2002 01:55:20 +0200 Sender: linux-smp-owner@vger.kernel.org Message-ID: <200207200155.20632.mah@tzi.de> Mime-Version: 1.0 Content-Transfer-Encoding: 8BIT Return-path: List-Id: Content-Type: text/plain; charset="us-ascii" To: linux-smp@vger.kernel.org Hello, I need the information about the time consumed when an interrupt occurs. Especially interesting is the time it takes from where the interrupt is generated (the device) until such time as the interrupt is reported to the cpu. Second, I need to know the elapsed time from that point until the isr is entered. On linuxdevices.com there is an article "Linux Scheduler Latency" by Clark Williams in which a comment by Ingo Molnar is quoted saying that the elapsed time takes 10 microseconds. Is that correct? Is there maybe any other source of information, someone could point me to? BTW, i refer to the intel platform. Thanks, Mark