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Subject:	Re: [geda-user] gschem sometimes takes a nap
From:	Edward Hennessy <ehennes AT sbcglobal DOT net>
In-Reply-To:	<lubvfc$p5k$1@ger.gmane.org>
Date:	Fri, 5 Sep 2014 19:59:44 -0700
Message-Id:	<68DB3C77-2335-4016-B466-20CA135CD4CC@sbcglobal.net>
References:	<lu83am$t8p$1 AT ger DOT gmane DOT org> <CAGRhJMZt5Z5DdVO=+=b+-6dDoOEAB4V57=MWuStR5imC1+WWQg AT mail DOT gmail DOT com> <7C56210D-D45D-4E93-B755-E373AC009668 AT sbcglobal DOT net> <lubvfc$p5k$1 AT ger DOT gmane DOT org>
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On Sep 5, 2014, at 2:25 AM, Kai-Martin Knaak <knaak AT iqo DOT uni-hannover DOT de> wrote:

> Edward Hennessy wrote:
> 
>> Does anyone have a schematic that can replicate
>> the issue that would be available for me to use?
> 
> See my schematics guinea pig in the attachment. I was able to trigger the 
> freeze by moving chunks of the schematic around.
> 

I believe I've reproduced the issue on my machine with your schematic. I can
sometimes get gschem to freeze a bit when moving objects around. However, when
selecting all objects on the schematic using Ctrl-A, my gschem will freeze for
five seconds.

When this freeze occurs, the function o_redraw_rects() is getting called with
over 6000 rectangles. And, it appears the time is spent repainting the background.

Shutting off the grid or switching to dots makes the problem much less pronounced.

Does this description match what you are seeing?

>> I tried getting gprof to work with gschem this morning. No gmon.out is
>> getting generated. I suspect an issue with the instrumentation code not
>> getting called at exit(). Has anyone got gprof working with gschem
>> before?
> 
> I had not heard  about gprof before. The man page talked about binaries 
> compiled with the -pg option. The configure script of gschem reads the 
> environment variable $CFLAGS. So I set it to 
>   export CFLAGS=-pg
> After I resolved an issue with not included <locale.h>, I got an binary 
> that generates a gmon.out. I will attach the output of gprof from a 
> session with a significant freeze in my next post. 

Unfortunately, I still don't have any luck generating a gmon.out. I've used the
flags and can see the instrumentation in my object code, but it still doesn't
generate gmon.out. Just curious, what version of gcc did you compile with?

Cheers,
Ed

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