#2375 HIGH Trial-3: Aweful performance on CJK webpage font rendering

[Zarro Boogs per Child]

#2375: Aweful performance on CJK webpage font rendering
--------------------------+-------------------------------------------------
  Reporter:  YChao        |       Owner:  marco           
      Type:  defect       |      Status:  new             
  Priority:  high         |   Milestone:  Trial-3         
 Component:  web browser  |     Version:                  
Resolution:               |    Keywords:  CJK font browser
  Verified:  0            |  
--------------------------+-------------------------------------------------
Changes (by YChao):

  * keywords:  => CJK font browser

Comment:

 Replying to [comment:1 jg]:

 Thank you very much for the reply.

 > Please try "fc-cache -rf" after installing the fonts, and retry the
 pages, and report results.
 Yes, it's confirmed as the same. Actually, I've issued 'fc-cache -fv'
 after installing the fonts for the original report. One can also cross
 check this by installing a CJK font and browse a CJK page with plenty of
 text like mentioned above.

 > As no trials are to Chinese/Japanese speaking parts of the world, this
 cannot be classed as a blocker, for Trial-2 or for Trial-3; but I would
 like to get to the bottom of this sooner rather than later.
 Yes, I can understand. Although it's not so significant, one can still
 notice the slow refresh rate when showing iso8859 encoding pages with
 plenty of text. (ex. doing page up/down when viewing en.wikipedia.org)
 There seems to have some caching, but definitely not enough for CJK. The
 official Firefox tar-ball doesn't have this problem so I don't think this
 is a problem of font-config system. Is it due to Cairo? or any thing I can
 try to check?

-- 
Ticket URL: <http://dev.laptop.org/ticket/2375#comment:2>
One Laptop Per Child <http://laptop.org/>