[liblouis-liblouisxml] Re: Delay and CPU gobbling with translateString(), short files, and braillePages=yes

  • From: "John J. Boyer" <john.boyer@xxxxxxxxxxxxxxxxx>
  • To: liblouis-liblouisxml@xxxxxxxxxxxxx
  • Date: Tue, 1 Nov 2011 08:30:42 -0500

Joannie,

If someone fixes the bindings for liblouisxml the fix can be part of a 
new release with a new version number. Also, if someone comes forward 
and makes Python bindings for liblouisutdml they will be included in the 
next release. I have enough on my plate with C and Java.

John

On Tue, Nov 01, 2011 at 04:49:14AM -0400, Joanmarie Diggs wrote:
> Hi John.
> 
> Thank you for your reply. Just how deprecated is deprecated? <smiles> In
> other words, if someone provides a fix for this bug will that fix find
> its way into a new release of liblouisxml as part of the stable
> maintenance state this module is now in?
> 
> Related to your suggestion about new bindings for liblouisutdml, any
> plans for doing so through gobject-introspection?
> 
> Take care.
> --joanie
> 
> On Sun, 2011-10-30 at 18:26 -0500, John J. Boyer wrote:
> > I think this is a problem with the Python bindings. I'm not a Python 
> > progrrammer, but they looked dubious to me. Please give the people who 
> > use Python a chance to respond. It would probably be best to create 
> > wholly new bindings for liblouisutdml. liblouisxml is deprecated. 
> > Developmennt is now on liblouisutdml. There are already Java bindings.
> > 
> > John
> > 
> > On Sun, Oct 30, 2011 at 06:20:32PM -0400, Joanmarie Diggs wrote:
> > > Hi again.
> > > 
> > > With respect to this issue I reported below, I created a simple test
> > > script which demonstrates the problem. It can be found in a new issue
> > > I filed for this problem:
> > > http://code.google.com/p/liblouisxml/issues/detail?id=5
> > > 
> > > Thanks again. Take care.
> > > --joanie
> > > 
> > > On Sun, Oct 30, 2011 at 12:11, Joanmarie Diggs
> > > <joanmarie.diggs@xxxxxxxxx> wrote:
> > > > Hi all.
> > > >
> > > > If I use translateString() from liblouisxml's python bindings to
> > > > translate the contents of a very short file, and I also have
> > > > braillePages set to 'yes', the amount of time it takes for that file
> > > > to be translated is quite large. And CPU shoots up to nearly 100% for
> > > > the duration of the translation. Setting braillePages to 'no' makes
> > > > the issue go away, and I've not seen this issue occur with files with
> > > > a more "normal" amount of text.
> > > >
> > > > As for what is the definition of "very short file" and "long time", a
> > > > quick bit of data:
> > > >
> > > >  character count of original: 93
> > > >  translation time: 0.003 seconds
> > > >
> > > >  character count of original: 75
> > > >  translation time: 98.253 seconds
> > > >
> > > > The second test case was a copy of the first test case with some words
> > > > removed. Both test cases were simple documents written in Gedit. And
> > > > both test cases were translated using the same configuration.
> > > >
> > > > While not technically an endless loop (after all, the process
> > > > eventually does return), this issue sounds similar to "Fixed endless
> > > > loop when braillePages=yes" listed in the release notes for 2.4.0. So
> > > > at least in theory have that fix.
> > > >
> > > > Any ideas as to what's going on?
> > > >
> > > > Lastly, I am aware that all the cool kids are now using liblouisutdml.
> > > > And one day I hope to be a cool kid. <smiles> At the moment, however,
> > > > I have some existing software which depends upon liblouisxml and is
> > > > suffering from this bug. Thus any help you could provide would be most
> > > > appreciated.
> > > >
> > > > Thanks in advance!
> > > > --joanie
> > > >
> > > For a description of the software, to download it and links to
> > > project pages go to http://www.abilitiessoft.com
> > 
> 
> 
> For a description of the software, to download it and links to
> project pages go to http://www.abilitiessoft.com

-- 
John J. Boyer; President, Chief Software Developer
Abilitiessoft, Inc.
http://www.abilitiessoft.com
Madison, Wisconsin USA
Developing software for people with disabilities

For a description of the software, to download it and links to
project pages go to http://www.abilitiessoft.com

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