[wp-trac] [WordPress Trac] #17641: Tweaks and optimizations for Twenty Eleven images

[WordPress Trac]

#17641: Tweaks and optimizations for Twenty Eleven images
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 Reporter:  demetris                |       Owner:  nacin
     Type:  enhancement             |      Status:  reviewing
 Priority:  normal                  |   Milestone:  3.2
Component:  Bundled Theme           |     Version:  3.2
 Severity:  normal                  |  Resolution:
 Keywords:  has-patch dev-feedback  |
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Comment (by demetris):

 Thanks, everyone, for taking the time to view the images and comment.

 A good thing to note is that, even with the moderate q75, we save 1.36MB
 for the WordPress package and, even more important, 173KB on average for
 every cache miss in sites using Twenty Eleven.

 Another interesting thing is that, again with the moderate q75, we already
 have a better compression ratio that in Twenty Ten.

 In Twenty Ten the header images were on average 48,161 bytes, and their
 bitmaps were 558,414 bytes each. So, we were at 8.62% of the bitmap size.

 In Twenty Eleven the q75 images are on average 62,610 bytes, and their
 bitmaps are 864,054 bytes each. (The 2011 header images are both wider and
 taller.) This means we are at 7,25% of the bitmap size.

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Ticket URL: <http://core.trac.wordpress.org/ticket/17641#comment:8>
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