From mboxrd@z Thu Jan 1 00:00:00 1970 From: Diwaker Gupta Subject: /proc/interrupts on unprivileged domains Date: Wed, 15 Dec 2004 15:12:29 -0800 Message-ID: <1b0b455704121515123da3c940@mail.gmail.com> Reply-To: Diwaker Gupta Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Return-path: Sender: xen-devel-admin@lists.sourceforge.net Errors-To: xen-devel-admin@lists.sourceforge.net List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , List-Archive: To: xen-devel@lists.sourceforge.net List-Id: xen-devel@lists.xenproject.org Hi everyone, I'm trying to understand the values in /proc/interrupts of unprivileged domains. Specifically, I'm interested in the value of the timer interrupt. AFAIK, this value reflects the number of times this domain received the timer interrupt from Xen? Equivalently, the number of times the timer_interrupt() function (and thus the do_timer_interrupt) function of the guest OS (linux, in this case) were called? Please correct me if I'm wrong. If that is indeed the case, then my real curiosity is this -- what parameters affect this number? Again, AFAIK Xen gives a timer interrupt periodically to a currently running domain, and also when a domain gets scheduled. But how does this indirectly depend on other parameters -- like the cpu frequency, the system time, the tsc timestamp value and so on. TIA Diwaker PS: I'm afraid I might not have been very articular in this email, but I'm happy to give clarifications :) -- Diwaker Gupta http://resolute.ucsd.edu/diwaker ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://productguide.itmanagersjournal.com/