Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753160AbbDSAxb (ORCPT ); Sat, 18 Apr 2015 20:53:31 -0400 Received: from mail-qc0-f174.google.com ([209.85.216.174]:34797 "EHLO mail-qc0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751197AbbDSAx2 (ORCPT ); Sat, 18 Apr 2015 20:53:28 -0400 From: Len Brown To: x86@kernel.org, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 0/1] speeding up cpu_up() Date: Sat, 18 Apr 2015 20:53:14 -0400 Message-Id: <1429404795-23260-1-git-send-email-lenb@kernel.org> X-Mailer: git-send-email 2.4.0.rc1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 668 Lines: 19 The following patch... [PATCH 1/1] x86: replace cpu_up hard-coded mdelay with variable enables reducing cpu_up() time by 10ms on modern systems. This means that for every processor in the system, boot-time and resume-time can be reduced by 10ms per-processor. Once this patch is accepted, I'll send a subsequent patch to update the default delay, as appropriate. thanks, Len Brown, Intel Open Source Technology Center -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/