Review Request: reserve size
Floris Ruijter
flo.ruijt at hotmail.com
Fri Mar 4 16:56:10 UTC 2011
> On March 3, 2011, 8:17 p.m., Milian Wolff wrote:
> > I wonder whether this is not possibly wasting memory if the contents have been less than reserved. I'd make sure by calling squeeze just before returning the result, see also: http://doc.qt.nokia.com/latest/qvector.html#squeeze
> >
> > Then please send me the patch as created by "git format-patch" then I'll apply it.
> >
> > btw: you should apply for a dev account, good work!
> >
> >
I've pushed it myself with the squeeze call.
- Floris
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This is an automatically generated e-mail. To reply, visit:
http://git.reviewboard.kde.org/r/100737/#review1756
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On Feb. 24, 2011, 10:58 p.m., Floris Ruijter wrote:
>
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> http://git.reviewboard.kde.org/r/100737/
> -----------------------------------------------------------
>
> (Updated Feb. 24, 2011, 10:58 p.m.)
>
>
> Review request for KDevelop.
>
>
> Summary
> -------
>
> by calling reserve upfront some time is saved.
>
>
> Diffs
> -----
>
> languages/cpp/parser/rpp/chartools.cpp 91612bd
>
> Diff: http://git.reviewboard.kde.org/r/100737/diff
>
>
> Testing
> -------
>
> i did several tests with duchainify on the cpp subtree to find the fastest denominator (it's 10)
>
> no prealloc
> real 4m47.104s
> user 1m31.478s
> sys 0m16.549s
>
> prealloc 1/8
> real 4m35.194s
> user 1m30.786s
> sys 0m16.341s
>
> prealloc 1/9
> real 4m34.568s
> user 1m30.870s
> sys 0m15.917s
>
> prealloc 1/10
> real 4m32.682s
> user 1m29.150s
> sys 0m15.941s
>
> prealloc 1/11
> real 4m35.614s
> user 1m28.390s
> sys 0m15.949s
>
> prealloc 1/12
> real 4m39.231s
> user 1m27.613s
> sys 0m16.209s
>
>
> Thanks,
>
> Floris
>
>
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