Sorry, but this message has been bounced (often happens when I
submit cases via sac). So forwarding it instead. Should you choose
to reply, use the email addresses below (except use my
'randy.fishel at sun.com' address).
Cheers!
---- Randy
---------- Forwarded message ----------
Date: Tue, 10 Feb 2009 20:04:56 -0800 (PST)
From: Randy Fishel <[email protected]>
To: PSARC-ext at Sun.Com
Cc: Rafael.Vanoni at Sun.Com, tesla-dev at opensolaris.org
Subject: PowerTOP --cpu option [PSARC/2009/086 Self Review]
I am sponsoring the following self-review for Rafael Vanoni. It adds
an option to PowerTOP allowing behavior to be focused on a specific
cpu. As other options, the stability is "Uncommitted", and a release
binding of "Patch/Micro".
Template Version: @(#)sac_nextcase %I% %G% SMI
This information is Copyright 2009 Sun Microsystems
1. Introduction
1.1. Project/Component Working Name:
PowerTOP --cpu option
1.2. Name of Document Author/Supplier:
Author: Rafael Vanoni
1.3 Date of This Document:
10 February, 2009
4. Technical Description
Currently, PowerTOP observes power management related events on a
system wide basis. With the growing number of cores and processors in
today's system, it is sometimes desirable to observe the system in a
finer grained manner. This project introduces a new command line option
that allows the user to specify which core/processor he wishes to observe
with PowerTOP.
The new option will focus all of PowerTOP's subwindows into the
specified processor. Therefore, presenting the processor's behavior in
terms of idle state and frequency level transitions, as well as reporting
only events that affect power management on that CPU. This new option
can be specified through the --cpu or -c option, and must be followed
by a CPU id. It can be used while specifying a time interval (-t), with
dump mode (-d), but not with verbose mode (-v).
Proposed man page addition:
OPTIONS
-c [processor id]
Specifies which CPU the tool should observe.
EXAMPLES
Example 4 Analyzing activity on a specific processor
This command will run PowerTOP and only display data for CPU 3.
% powertop -c 3
6. Resources and Schedule
6.4. Steering Committee requested information
6.4.1. Consolidation C-team Name:
ON
6.5. ARC review type: Automatic
6.6. ARC Exposure: open
