Re: LilyPond is excessively slow on Windows Vista

[Trevor Daniels]

Patrick McCarty wrote Friday, November 14, 2008 10:11 PM


> On Fri, Nov 14, 2008 at 8:39 AM, Trevor Daniels <address@hidden> 
> wrote:
> > Patrick McCarty wrote Thursday, November 13, 2008 8:34 PM
> > > Is the large cache file being rebuilt mistakenly (on some Windows
> > > systems)?
> >
> > Yes; that is the problem exactly.  Every other case of slowness on 
> > Windows,
> > both XP and Vista, which has been examined closely has resulted in the
> > same conclusion.  The question is, what causes it to happen?
>
> Not sure, but this fontconfig bug report looks really interesting, and
> could be related:
>
> https://bugs.freedesktop.org/show_bug.cgi?id=18195

This suggests that the cache is believed to be invalid because the cache
timestamp doesn't match the directory create-time.  Thought to be due to
incorrect correction for daylight-saving time.  My cache was created on
21 March 2008, just over a week before the UK moved into daylight
saving time, and works fine.  Perhaps those of you with delays could
check if the creation date is within or without periods of daylight saving.
And if it is within a daylight saving period try deleting the cache so it,
is rebuild from scratch now, as presumably all daylight saving periods
have finished.

The referenced bug also says Changing "FcStat to normal stat" fixed
the problem, but I don't know what this means.

Trevor