Re: [Discuss-gnuradio] Performance monitoring within Gnuradio

[Vipin Sharma]

Thanks for the tip!

I will try htop first and then rebuild if necessary. 

On Mon, Oct 30, 2017 at 5:29 AM Michael Dickens <address@hidden> wrote:

Hi Vipin - To get performance counters, you have to rebuild GNU Radio
and enable them specifically via the cmake command addition
"-DENABLE_PERFORMANCE_COUNTERS=ON". Make sure to review the output of
the cmake command to verify that they have been enabled, then once
you're satisfied do the usual build and install. You'll have to figure
out how to make use of PCs; I think TomR did a presentation on them,
once upon a time, that would be useful.

An alternative is to use "htop" and turn on thread names since GR
internally names all threads based on the block running in the thread.
"htop" won't give you the high level of detail of PCs, but it also
doesn't require you to install Thrift nor rebuild GR; it can be used
with your current GR install & will give you an idea of which blocks are
using the most CPU cycles.

Hope this helps! - MLD

On Sun, Oct 29, 2017, at 10:21 AM, Vipin Sharma wrote:
> I am trying to monitor performance for my custom blocks using GnuRadio's perf monitoring tools. After researching a bit, I found out that I need to install Apache Thrift.
>
> Do I need to re-build GnuRadio to leverage Thrift?
>
> If yes, what options should I give to build script so that it recognizes and builds with Thrift?
>
> I really just want to measure how much time the work function of my custom block is taking. This way of measuring performance sounds very invasive. May be I should just add code to the work function to measure CPU cycles?
>
> What is the simplest way to do this?