[liblouis-liblouisxml] Re: Issue 5 in liblouisxml: Translating short strings takes an extremely long time and gobbles up CPU if braillePages=yes
- From: "John J. Boyer" <john.boyer@xxxxxxxxxxxxxxxxx>
- To: liblouis-liblouisxml@xxxxxxxxxxxxx
- Date: Tue, 1 Nov 2011 22:36:35 -0500
xml2brl and file2brl call translateFile for xml files and
translateTextFile for text files. This doesn't seem like a big issue to
me.
John
On Wed, Nov 02, 2011 at 01:11:22AM +0000, Michael Whapples wrote:
> I have also tried it with xml2brl but for that I do not get a delay. Does the
> xml2brl (or file2brl) actually use the translateString call?
>
> My C isn't really up to much, it might just extend as far as writing a
> replica of the test case in C and see if the problem is still observed.
>
> Michael Whapples
> On 1 Nov 2011, at 21:45, John J. Boyer wrote:
>
> > liblouisutdml reads an initialization file and configuration file when
> > it starts. There is also extra processing for very short files. I
> > haven't noticed unusual delays when using the file2brl program. This
> > applies to liblouisxml as well.
> >
> > John
> >
> > On Tue, Nov 01, 2011 at 05:42:06PM +0000, liblouisxml@xxxxxxxxxxxxxx wrote:
> >>
> >> Comment #1 on issue 5 by mwhapp...@xxxxxxxxx: Translating short strings
> >> takes an extremely long time and gobbles up CPU if braillePages=yes
> >> http://code.google.com/p/liblouisxml/issues/detail?id=5
> >>
> >> I am fairly confident that the issue does not lie within the python
> >> bindings. I did a similar measuring of the time as that approach in the
> >> test script, applying that in the bindings themselves so that only the
> >> actual call to liblouisxml would be measured. The time reported for the C
> >> call in the bindings came out as 0.012 for the long string and 270.782 for
> >>
> >> the short string, the test script reported 0.014 for the long string and
> >> 270.782 for the short string. As the only code between the start time
> >> being
> >> taken and the end time being taken in my modified version of the bindings
> >> was the if statement where the C call is made and handling should an error
> >>
> >> value be returned, to me this says that other parts of the bindings cannot
> >>
> >> be to blame. The only further test which I think would prove it more is to
> >>
> >> write a simple test C programme.
> >>
> >> 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
>
> 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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