[PATCH] doc: Document the relax_domain_level kernel boot argument

From: Paul Jackson
Date: Mon Jun 30 2008 - 00:57:23 EST


From: Paul Jackson <pj@xxxxxxx>

Document the kernel boot parameter: relax_domain_level=.

Signed-off-by: Paul Jackson <pj@xxxxxxx>

---
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@xxxxxxx> 1.650.933.1373
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