[liblouis-liblouisxml] Re: Performance Question
- From: "John J. Boyer" <john.boyer@xxxxxxxxxxxxxxxxx>
- To: liblouis-liblouisxml@xxxxxxxxxxxxx
- Date: Fri, 25 Oct 2013 21:04:41 -0500
As I said in my previous message, Ken's result is peculiar. I think he
may be referring to processing each word individually and calling the
library for each one.
John
On Fri, Oct 25, 2013 at 07:12:34PM -0600, Susan Jolly wrote:
> Thanks for all the helpful replies. Ken thanks for the timing results. I
> agree with you that it doesn't make sense if it takes liblouis 15 minutes
> rather than a few seconds to translate a file with around 100,000 words.
> However, it's hard to guess what the problem is without using a
> sophisticated profiler.
>
> >From what I've read and also in my own experience the biggest leverage for
> performance comes from using optimal algorithms. Interpreters, compilers,
> operating systems and hardware are getting faster all the time and, of
> course, computer memory continues to get larger and cheaper. For this
> reason, I think a discussion of algorithms is essential when planning for
> the future.
>
> A very simple example where a choice of algorithms is possible occurs in
> braille translators that look up words in a provided list of translations
> and, if the word isn't found, translate it using a translation table. If
> using a list is faster that would suggest that a modification that adds
> each newly translated word to the list would be faster than retranslating
> it each time is encountered.
>
> Susan
>
>
> 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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