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Re: [Discuss-gnuradio] oprofile inband code results
From: |
Eric Blossom |
Subject: |
Re: [Discuss-gnuradio] oprofile inband code results |
Date: |
Tue, 9 Oct 2007 11:22:32 -0700 |
User-agent: |
Mutt/1.5.9i |
On Tue, Oct 09, 2007 at 01:33:12PM -0400, George Nychis wrote:
>
>
> George Nychis wrote:
> >I've been digging around the oprofile docs and google for this, but
> >haven't turned up with anything yet as many of the docs show libc
> >symbols in oprofile... but any ideas why my results are not achieving
> >per symbol analysis of libc? Instead, it just says "(no symbols)"
> >
>
> Finally found it:
> sudo apt-get install libc-dbg
>
> So in that case:
> http://www.andrew.cmu.edu/user/gnychis/inband_tx_10
>
> And I've stopped reverse sorting :P heh
Glad to see it ;)
> So libm's bulk comes from sincosf, which I'm not worrying about, but
> that solves the where question for that lib.
>
> When it comes to libc, its free and mallocs that are killing us. If you
> look down libc to even the smaller percentages, its free/malloc related
> (malloc_consolidate, _int_malloc, _int_free ... etc).
>
> This happens in two major areas that I can think of: once in the
> application which stores the samples (our sine wave) and passes them
> down. Another is in the usrp_server which allocates new memory for the
> USB packets for which the samples are then treated transparently and
> copied in to. Then of course, this memory gets free.
>
> Thoughts/comments? :)
The malloc/free's could be coming from the C++ allocations for the pmt
objects. Thanks for investigating!
Eric
- Re: [Discuss-gnuradio] oprofile inband code results, (continued)
- Re: [Discuss-gnuradio] oprofile inband code results, Johnathan Corgan, 2007/10/06
- Re: [Discuss-gnuradio] oprofile inband code results, George Nychis, 2007/10/06
- Re: [Discuss-gnuradio] oprofile inband code results, George Nychis, 2007/10/06
- Re: [Discuss-gnuradio] oprofile inband code results, George Nychis, 2007/10/06
- AW: [Discuss-gnuradio] oprofile inband code results, Dominik Auras, 2007/10/07
- Re: [Discuss-gnuradio] oprofile inband code results, Eric Blossom, 2007/10/07
- Re: [Discuss-gnuradio] oprofile inband code results, George Nychis, 2007/10/07
- Re: [Discuss-gnuradio] oprofile inband code results, Eric Blossom, 2007/10/07
- Re: [Discuss-gnuradio] oprofile inband code results, George Nychis, 2007/10/08
- Re: [Discuss-gnuradio] oprofile inband code results, George Nychis, 2007/10/09
- Re: [Discuss-gnuradio] oprofile inband code results,
Eric Blossom <=
- Re: [Discuss-gnuradio] oprofile inband code results, George Nychis, 2007/10/09
- Re: [Discuss-gnuradio] oprofile inband code results, George Nychis, 2007/10/09
- Re: [Discuss-gnuradio] oprofile inband code results, Brian Padalino, 2007/10/09
- Re: [Discuss-gnuradio] oprofile inband code results, Brian Padalino, 2007/10/09
- Re: [Discuss-gnuradio] oprofile inband code results, Eric Blossom, 2007/10/09
- Re: [Discuss-gnuradio] oprofile inband code results, George Nychis, 2007/10/09
- Re: [Discuss-gnuradio] oprofile inband code results, Eric Blossom, 2007/10/09
- Re: [Discuss-gnuradio] oprofile inband code results, George Nychis, 2007/10/10
- Re: [Discuss-gnuradio] oprofile inband code results, Eric Blossom, 2007/10/10
Re: [Discuss-gnuradio] oprofile inband code results, Eric Blossom, 2007/10/07