[Discuss-gnuradio] Estimate CPU usage

[haroldmk]

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".

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



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