Re: [Plplot-general] plbuf wr_data: Plot buffer grow failed

[Andrew R. <and...@us...>]

Glad it works! We probably should add a similar option for some of the other drivers, or in the core library.

Andrew

On Tue, Aug 14, 2012 at 02:07:29PM +0000, Owens, Thomas wrote:
> Thank you Andrew!
> 
> plsdev("xwin");
> plsetopt("drvopt","nobuffered=1");
> 
> Works great!
> 
> Tom
> 
> -----Original Message-----
> From: ANDREW ROSS [mailto:an...@vi...] On Behalf Of Andrew Ross
> Sent: Monday, August 13, 2012 6:38 PM
> To: Owens, Thomas
> Cc: plp...@li...
> Subject: Re: [Plplot-general] plbuf wr_data: Plot buffer grow failed
> 
> 
> Which driver are you using?
> 
> xwin for example has an option "-drvopt unbuffered" which will disable buffering. There is no universal user level way of doing this and most other drivers don't have a similar option.
> 
> The variable plbuf_write in the PLStream structure controls whether writing to the buffer is allowed. You may be able to set this to 0 in the driver you are using to see if this fixes the problem.
> 
> Regards
> 
> Andrew
> 
> On Mon, Aug 13, 2012 at 04:54:47PM +0000, Owens, Thomas wrote:
> > I have written a plplot application that reads in streamed data and 
> > continuously updates 9 plots within a single window. However, after 
> > about 30 minutes or so, the plot buffer grows so large that the application closes/crashes with PLPLOT ERROR, IMMEDIATE EXIT plbuf wr_data: Plot buffer grow failed.
> > 
> > If I run plplot with debug enabled, I get the console messages:
> > Growing buffer to 1408 KB
> > Growing buffer to 40704 KB
> > Growing buffer to 41216 KB etc...
> > 
> > Valgrind shows the memory issue occurs with the calls to plenv.
> > 
> > Besides closing and reopening the entire window, is it possible to use plplot without allowing the buffer to continuously grow?
> > 
> > The same issue is described 3 years ago at 
> > http://www.mail-archive.com/plp...@li.../msg00
> > 659.html
> > without an end solution.
> > 
> > Thank you for any assistance.
> 
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