Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756443AbYF3E4v (ORCPT ); Mon, 30 Jun 2008 00:56:51 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751568AbYF3E4m (ORCPT ); Mon, 30 Jun 2008 00:56:42 -0400 Received: from netops-testserver-3-out.sgi.com ([192.48.171.28]:52261 "EHLO relay.sgi.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751299AbYF3E4l (ORCPT ); Mon, 30 Jun 2008 00:56:41 -0400 From: Paul Jackson To: "Andrew Morton" Cc: Lee.Schermerhorn@hp.com, Hidetoshi Seto , linux-kernel@vger.kernel.org, Michael Kerrisk , Li Zefan , rientjes@google.com, Paul Jackson Date: Sun, 29 Jun 2008 21:56:40 -0700 Message-Id: <20080630045640.20308.22031.sendpatchset@polaris-admin.engr.sgi.com> Subject: [PATCH] doc: Document the relax_domain_level kernel boot argument Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1938 Lines: 46 From: Paul Jackson Document the kernel boot parameter: relax_domain_level=. Signed-off-by: Paul Jackson --- Documentation/cpusets.txt | 3 +++ Documentation/kernel-parameters.txt | 4 ++++ 2 files changed, 7 insertions(+) --- 2.6.26-rc5-mm3.orig/Documentation/cpusets.txt 2008-06-27 06:55:34.000000000 -0700 +++ 2.6.26-rc5-mm3/Documentation/cpusets.txt 2008-06-29 21:49:53.984674621 -0700 @@ -546,6 +546,9 @@ otherwise initial value -1 that indicate ( 4 : search nodes in a chunk of node [on NUMA system] ) ( 5~ : search system wide [on NUMA system]) +The system default is 0 (no search). The system default can be +changed using the relax_domain_level= boot parameter. + This file is per-cpuset and affect the sched domain where the cpuset belongs to. Therefore if the flag 'sched_load_balance' of a cpuset is disabled, then 'sched_relax_domain_level' have no effect since --- 2.6.26-rc5-mm3.orig/Documentation/kernel-parameters.txt 2008-06-27 06:28:26.000000000 -0700 +++ 2.6.26-rc5-mm3/Documentation/kernel-parameters.txt 2008-06-29 21:51:10.477997208 -0700 @@ -1732,6 +1732,10 @@ and is between 256 and 4096 characters. Format: [,[,...]] See arch/*/kernel/reboot.c or arch/*/kernel/process.c + relax_domain_level= + [KNL, SMP] Set schedulers default relax_domain_level. + See Documentation/cpusets.txt. + reserve= [KNL,BUGS] Force the kernel to ignore some iomem area reservetop= [X86-32] -- I won't rest till it's the best ... Programmer, Linux Scalability Paul Jackson 1.650.933.1373 -- 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/