#1207 HIGH Opportu: Image scaling has become a performance issue

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#1207: Image scaling has become a performance issue
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  Reporter:  jg               |       Owner:  jg                
      Type:  task             |      Status:  new               
  Priority:  high             |   Milestone:  Opportunity       
 Component:  x window system  |     Version:                    
Resolution:                   |    Keywords:  power, performance
  Verified:  0                |  
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Comment (by tomeu):

 Replying to [comment:2 bernie]:
 > My friend aleph did some performance analysis of our rendering
 > stack with me, and  may want to give this bug a shot.

 Great!

 > Is there a simple test case he could use?  If not, could you
 > get us in contact with a xulrunner developer who knows where
 > to find the relevant code?

 I'm not a xulrunner developer, but if I had to discover how big of a
 problem is image scaling in Browse and which code paths are involved, I
 would install the debug package for xulrunner in the xo, and then profile
 with sysprof.

 My guess is that you'll find some ops in the cairo copy bundled inside
 xulrunner. A quick glance to lxr.mozilla.org should show you how these
 funcs are called and making a simpler test case should be easy from there.

 I think I'll be able to give it a shot after Trial3 code freeze.

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Ticket URL: <https://dev.laptop.org/ticket/1207#comment:4>
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