[Fontconfig] Streamlining fontconfig scanning

Jerry Casiano jerrycasiano at gmail.com
Tue Aug 8 22:44:03 UTC 2017


Nice!

I assume FcCharset is here to stay even if it might not be as accurate as
it was before, correct?

I'm guessing FcBlanks just wasn't something anybody used anyway.

On Aug 7, 2017 1:31 PM, "Behdad Esfahbod" <behdad at behdad.org> wrote:

> Hi everyone,
>
> I have a proposed patchset speeding up fontconfig scanning by 10x, simply
> by not loading glyphs at all, and trusting fonts having correct cmap:
>
>   https://bugs.freedesktop.org/show_bug.cgi?id=64766#c56
>
> If no one has comments, I like to merge this and get it out for testing in
> the wild.
>
> After this, I think we should fix the relocatable feature to not touch
> mmaped cache files.  Here's my proposed approach:
>
>   https://bugs.freedesktop.org/show_bug.cgi?id=101889#c17
>
> After that, we should clean up the cache race patches and remove the
> locking.  We should accept that cache updates will always remain racy,
> simply because we don't have or want to use the kinds of synchronization
> primitives that guarantee no race.  With scanning 10x faster this shouldn't
> be a problem in practice.  I like to get back to each process trying to
> update the cache and possibly discarding its result if another process
> already did...
>
> Cheers,
>
> --
> behdad
> http://behdad.org/
>
> _______________________________________________
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> Fontconfig at lists.freedesktop.org
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>
>
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