From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Mon, 10 Sep 2001 14:34:38 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Mon, 10 Sep 2001 14:34:28 -0400 Received: from gateway-1237.mvista.com ([12.44.186.158]:18426 "EHLO hermes.mvista.com") by vger.kernel.org with ESMTP id ; Mon, 10 Sep 2001 14:34:24 -0400 Message-ID: <3B9D07AD.E3310270@mvista.com> Date: Mon, 10 Sep 2001 11:34:21 -0700 From: george anzinger Organization: Monta Vista Software X-Mailer: Mozilla 4.77 [en] (X11; U; Linux 2.2.12-20b i686) X-Accept-Language: en MIME-Version: 1.0 To: Timur Tabi CC: linux-kernel@vger.kernel.org Subject: Re: Which CPU do timers run on? In-Reply-To: <3B9BD508.1050200@interactivesi.com> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Timur Tabi wrote: > > When I create a timer (init_timer(), etc) on an SMP system, will the timer > always run on one CPU, or can it run on any CPU? If I disabled interrupts on > only one CPU, will that disable the timer completely? > I believe that timers, like other interrupts, are handled by the CPU pool. Interrupts can be pinned to a particular cpu, but I don't think the timer interrupt is. George