Bug 436062

Summary:	BIOS Parameters Section of the HOWTO needs completion
Product:	Red Hat Enterprise MRG	Reporter:	Lana Brindley <lbrindle>
Component:	Realtime_Tuning_Guide	Assignee:	Luis Claudio R. Goncalves <lgoncalv>
Status:	CLOSED WONTFIX	QA Contact:	Jeff Needle <jneedle>
Severity:	low	Docs Contact:
Priority:	low
Version:	beta	CC:	acme, bhu, csnook, dshaks, gozen, jburke, mhideo, pzijlstr, srostedt, ttracy
Target Milestone:	1.1	Keywords:	Documentation
Target Release:	---
Hardware:	All
OS:	Linux
URL:	http://rt.et.redhat.com/page/RHEL-RT_BiosParametersHowto
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2008-10-30 06:07:19 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Lana Brindley 2008-03-05 04:08:57 UTC

Description of problem:

BIOS parameters need completion. Leaving out of the Tuning Guide for now.

Assigned to Clark for re-assigning as you see fit :)

LKB

Comment 1 Clark Williams 2008-03-11 19:44:56 UTC

Hmmm, BIOS parameters are a wildly differing collection of stuff.  I'm going to
assign this one to Luis, but CC Steven, Peter and Arnaldo, since I'm sure they
have opionions on this.

Comment 2 Lana Brindley 2008-03-27 02:42:47 UTC

This is a friendly reminder :) LKB

Comment 3 Clark Williams 2008-07-02 17:00:41 UTC

I think there are really only two things we can address here:

1. NUMA issues
2. SMI's

In both cases, we will have to write in generalities, since different BIOS
vendors use different terms, have different interfaces, etc. to address these
issues. 

The NUMA issue is when you're running on a NUMA machine (e.g. HP DL585) and your
application is not NUMA-aware, you want to set the system to be "memory
interleaved" rather than leaving it NUMA.  We may want to get some additional
information from lwoodman on how to describe this.

The SMI issue is not something that's easily handled. I suspect we'll have to
say something like "Go into your BIOS setup screen and see if System Mangement
Interrupts or SMIs are mentioned. If they are, turn them off for more
deterministic behavior". Not even positive that *any* vendor offers that option
though.

Comment 4 Lana Brindley 2008-10-30 06:07:19 UTC

This has not been included in the current document due to lack of information. If it is still required please open a new bug with source information.

LKB