[Fontconfig] fontconfig: Branch 'master' - 2 commits

[Behdad Esfahbod]

On 15-03-03 03:56 PM, Raimund Steger wrote:
> On 02/27/15 07:57, Akira TAGOH wrote:
>> [...]
>> diff --git a/fc-blanks/fc-blanks.py b/fc-blanks/fc-blanks.py
>> [...]
>> +fp =
>> urllib2.urlopen('http://unicode.org/cldr/utility/list-unicodeset.jsp?a=[%3AGC%3DZs%3A][%3ADI%3A]&abb=on&ucd=on&esc=on&g')
>>
> 
> 4191 codepoints?
> 
> Before it was more like 60...

Most of the new ones are blocks of unassigned codepoints.

> 'fc-cache -f' now spends 100x more time in FcBlanksIsMember, which makes for
> several seconds difference on some of my boxes. In the profiler:

Yeah, because currently it's stored as a list of codepoints, which is very
inefficient.  Worse, FcBlanksIsMember does a linear search...

I'm personally in support of killing configurable blanks completely.  This is
very close to that.  Let me improve the storage and implement bsearch...

> ---8<---------------------------------------------
> 
> sun3:fontconfig)collect fc-cache -f
> Creating experiment database test.2.er ...
> sun3:fontconfig)er_print -calltree test.2.er
> Functions Call Tree. Metric: Attributed User CPU Time
> 
> Attr.      Name
> User CPU
>   sec.
> 19.604     +-<Total>
> [...]
>  0.030           |  |  |      |  |  |  |  |  |    |  +-FcBlanksIsMember
> [...]
>  0.040           |  |    |  |  |  |  |  |    |  +-FcBlanksIsMember
> 
> ---8<---------------------------------------------
> 
> as opposed to:
> 
> ---8<---------------------------------------------
> 
> sun3:fontconfig)collect fc-cache -f
> Creating experiment database test.1.er ...
> sun3:fontconfig)er_print -calltree test.1.er
> Functions Call Tree. Metric: Attributed User CPU Time
> 
> Attr.      Name
> User CPU
>   sec.
> 26.939     +-<Total>
> [...]
>  3.683           |  |  |  |    |  |  |  |  |  |    |  +-FcBlanksIsMember
> [...]
>  4.073           |  |    |  |  |  |  |  |    |  +-FcBlanksIsMember
> 
> ---8<---------------------------------------------
> 
> 
> 
> 
> 

-- 
behdad
http://behdad.org/