Re: [Discuss-gnuradio] CPU load

[Dan Halperin]

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On Apr 19, 2008, at 2:24 PM, Eric Blossom wrote:
> On Fri, Apr 18, 2008 at 10:25:07AM -0400, Brian Padalino wrote:
> > On Fri, Apr 18, 2008 at 10:21 AM, Wireless Monster
> > <address@hidden> wrote:
> > > Thank Martin,
> > > However I was thinking in a way to measure the load of each  
> > > gnuradio block.
> > > Any clue?
> > > Rgds,
> >
> > I know Eric likes to use oprofile:
> >
> >    http://oprofile.sourceforge.net/about/
> >
> > You will definitely get a real sense as to what's eating up your
> > cycles, but it may be a bit too granular for most people.  I have
> > never used it, personally.
> >
> > Brian
>
> It breaks it down per function, plenty fine for most uses.

You can also do per line.

UNfortunately, the call-graph method is broken on 64-bit linux (AFAI  
can tell from really poor documentation and mailing lists), so if two  
blocks use the same subroutines (atan2f, fft methods, etc) you can't  
distinguish CPU usage by block.

- -Dan
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