From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756133Ab0LOB6v (ORCPT ); Tue, 14 Dec 2010 20:58:51 -0500 Received: from relay3.sgi.com ([192.48.152.1]:51621 "EHLO relay.sgi.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1755493Ab0LOB6u (ORCPT ); Tue, 14 Dec 2010 20:58:50 -0500 Message-Id: <20101215015840.390204279@gulag1.americas.sgi.com> User-Agent: quilt/0.47-15.10 Date: Tue, 14 Dec 2010 19:58:40 -0600 From: Robin@sgi.com, "Holt , linux-kernel@vger.kernel.org, Thomas Gleixner , Ingo Molnar Subject: [RFC 0/2] Speed large x86_64 system boot by calling calibrate_delay() in parallel. Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On a 4096 cpu machine, we spend a little more than five minutes of the boot within calibrate_delay(). By doing this work in parallel, we reduce the time to one minute.