Re: [Powertop] Process-level power estimation

Re: [Powertop] Process-level power estimation

[Miguel Ferreira]

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I forgot to mention that I'm using PowerTop 2.3

And I'm sorry for the HTML message! These dam signatures...

> Hi,
> 
> I'm currently doing research into power profiling tools and PowerTop is one of the tools I would like to test.
> 
> Because the research I'm doing is on server hardware I had to use an external power meter with PowerTop.
> I've decided to use a Watts Up? Pro meter because I already had one, so I changed the code (in src/measurement/extech.cpp) that reads from the Extech to read from the Watts Up? Pro. 
> As a result PowerTop now reports on energy drain and that seems correct.
> 
> I read in other threads that PowerTop needs to accumulate measurements before it can provide process-level power estimates.
> I also read that it should collect (roughly) over 100 measurements.
> So I ran PowerTop in calibration mode and then left it running for over 30 minutes (with an update interval of 1 second).
> Still I don't get the first column ("Power est.") shown in the About page of the website.
> 
> I'm wondering how can I check if PowerTop is collecting measurements at all?
> Or do I just need to let it run for longer?

Miguel
_________________________
Miguel Ferreira | Researcher
+31 20 314 09 50 | m.ferreira(a)sig.eu 
Software Improvement Group | www.sig.eu

[Powertop] Process-level power estimation

[Miguel Ferreira]

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Hi,

I'm currently doing research into power profiling tools and PowerTop is one of the tools I would like to test.

Because the research I'm doing is on server hardware I had to use an external power meter with PowerTop.
I've decided to use a Watts Up? Pro meter because I already had one, so I changed the code (in src/measurement/extech.cpp) that reads from the Extech to read from the Watts Up? Pro. 
As a result PowerTop now reports on energy drain and that seems correct.

I read in other threads that PowerTop needs to accumulate measurements before it can provide process-level power estimates.
I also read that it should collect (roughly) over 100 measurements.
So I ran PowerTop in calibration mode and then left it running for over 30 minutes (with an update interval of 1 second).
Still I don't get the first column ("Power est.") shown in the About page of the website.

I'm wondering how can I check if PowerTop is collecting measurements at all?
Or do I just need to let it run for longer?

Cheers,
Miguel
_________________________
Miguel Ferreira | Researcher
+31 20 314 09 50 | m.ferreira(a)sig.eu 
Software Improvement Group | www.sig.eu


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