Re: [Discuss-gnuradio] Estimate CPU usage

[Philip Balister]

On 11/06/2015 03:54 PM, haroldmk wrote:
> Hello all, 
> 
> I am working with GNU Radio on a Zedboard (which is a Xilinx Zynq-7000 based
> device). The linux dist. used is the one from this page:
> http://gnuradio.org/data/sdk/zedboard_armv7a-sf-vfp-neon/
> 
> I have described some functions on the FPGA of the Zynq and I am able to
> send and receive data from a gnuradio .py , and everthing seems to be
> working ok. 
> 
> I would like to measure how the use of the FPGA impacts the CPU performance,
> I am thinking on measuring the % of CPU usage of a GNU Radio block that
> performs all the calculations only in the ARM processor and the same
> function but co-processing some data in the FPGA.
> 
> The problems that I have in doing that measure is that the Linux dist. used
> has no graphical interface and only one command line, so, I am not able to
> run the .py file on one termianl and other programm on other terminal like
> TOP for CPU usage measurement.
> 
> I tried with a bash script but when I execute the .py file it "blocks"
> everthing. I have to manually press enter or stop the process, depending on
> run option I chose initially in the flow graph options, "Generate Options:
> No GUI" and "Run Options: Prompt to exit" or "Run to completion".

Use ssh to login via the network.

perf and friends can be really handy for understanding what the
processor is doing.

https://www.youtube.com/watch?v=kWnx6eOGVYo

Philip

> 
> Any ideas on how to handle this?.
> Thanks in advance.
> 
> 
> 
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