[Okular-devel] Review Request 109119: Txt backend: Drop detectEncoding method and just feed more data to KEncodingProber

[Azat Khuzhin]

> On Feb. 27, 2013, 10:43 p.m., Albert Astals Cid wrote:
> > Code looks, ok, but now the big question, is this really an improvement? I guess the only improvement would be speed-wise and not encoding-detection-wise. Have you opened really big files and noticed it is faster? Otherwise maybe there is no really need to change the existing code if it works as well?
> 
> Azat Khuzhin wrote:
>     Yes it is only speed-wise improvement, as I already told.
>     > Description:
>     > Don't to extra job, when encoding is detected just return encoding.
>     
>     For big files there is improvement, but this files is quite big (~900 000  lines long), if we oriented on books
>     Just two times faster for such number of lines.
>     
>     Maybe there is no need in this patch, but for me it more appropriate way.
> 
> Albert Astals Cid wrote:
>     Ok, i'm going to commit it. I have created a file with 1.7 million lines and the old code takes 270ms in running detectEncoding over that file and the new one takes 0ms, but still there is something out there taking a muuuuuuuuuuuuch longer time so it's optimizing the wrong part of the code imo.

Yes, it's true, it opens huge documents, too long.
I'v already profile this using some tools, but can't find how can I make it faster, when I would have more time, i will try once more.

Maybe threaded render will do this faster.


- Azat


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On Feb. 25, 2013, 8:15 p.m., Azat Khuzhin wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> http://git.reviewboard.kde.org/r/109119/
> -----------------------------------------------------------
> 
> (Updated Feb. 25, 2013, 8:15 p.m.)
> 
> 
> Review request for Okular.
> 
> 
> Description
> -------
> 
> Don't to extra job, when encoding is detected just return encoding.
> 
> 
> Diffs
> -----
> 
>   generators/txt/document.h 08babea 
>   generators/txt/document.cpp badb647 
> 
> Diff: http://git.reviewboard.kde.org/r/109119/diff/
> 
> 
> Testing
> -------
> 
> 
> Thanks,
> 
> Azat Khuzhin
> 
>

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