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Re: [Discuss-gnuradio] Contribute to the in-band project: profile the co
Re: [Discuss-gnuradio] Contribute to the in-band project: profile the code
Fri, 12 Oct 2007 10:05:57 -0400
Thunderbird 22.214.171.124 (X11/20070824)
Dominik Auras wrote:
I have tried to profile your code.
Thank you! :D
What are your machine specs?
First thing I noted: The PMT library from your svn branch had to be
installed with sudo make install. Now I installed the whole branch.
Yes, I forgot to mention this, thank you! I will add it to the wiki.
When I run test_usrp_inband_rx, it takes very long time and produces
fusb: (rd status -2) No such file or directory
Interesting... I thought we had solved this with a commit before my
e-mail of a USB patch Eric gave me. I tested it with at least 50 runs
on my machine and never saw it again after the patch. Can you try doing
a hard reset on the board (unplug/replug) and try running this again?
These appear after "Closing the USRP". There is cpu usage only after
this message, and only one core is used (is that right?). It takes more
than 8 minutes, not 40s as in your example in the wiki. Since it
appeared to hang, I have interrupted the execution.
Yes this is too long. To make a long story short there seems to be a
problem clearing the buffers in the FX2 which the USRP hangs on "Closing
the USRP" because it's waiting for the buffers to clear... we think!
Do a hard reset and try again, does it produce this error every time?