+1
- Garrett
Randy Fishel wrote:
> 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
>
>
