Messages in this thread Patch in this message |  | | | From | Paul Jackson <> | | Date | Sun, 29 Jun 2008 21:56:40 -0700 | | Subject | [PATCH] doc: Document the relax_domain_level kernel boot argument |
| |
From: Paul Jackson <pj@sgi.com>
Document the kernel boot parameter: relax_domain_level=.
Signed-off-by: Paul Jackson <pj@sgi.com>
--- 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: <reboot_mode>[,<reboot_mode2>[,...]] 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 <pj@sgi.com> 1.650.933.1373
|  |