[Webkit-unassigned] [Bug 53281] clean up CG allocations made while determining image size

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=53281


Ian Henderson <ianh at apple.com> changed:

           What    |Removed                     |Added
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  Attachment #80406|                            |review?, commit-queue?
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--- Comment #2 from Ian Henderson <ianh at apple.com>  2011-01-27 20:01:35 PST ---
Created an attachment (id=80406)
 --> (https://bugs.webkit.org/attachment.cgi?id=80406&action=review)
proposed patch

Proposed patch attached.  With the patch, loading the attached 1000-images uses about 10 megabytes less memory.

1000-images in ToT r76862 (5 runs, vmmap -resident):
1-old.vmmap:Writable regions: Total=2.1G written=51.4M(2%) resident=75.5M(3%) swapped_out=0K(0%) unallocated=2.1G(97%)
2-old.vmmap:Writable regions: Total=2.2G written=52.1M(2%) resident=76.2M(3%) swapped_out=0K(0%) unallocated=2.1G(97%)
3-old.vmmap:Writable regions: Total=2.2G written=50.5M(2%) resident=74.6M(3%) swapped_out=0K(0%) unallocated=2.1G(97%)
4-old.vmmap:Writable regions: Total=2.1G written=49.7M(2%) resident=73.8M(3%) swapped_out=0K(0%) unallocated=2.1G(97%)
5-old.vmmap:Writable regions: Total=2.1G written=52.2M(2%) resident=76.3M(3%) swapped_out=0K(0%) unallocated=2.1G(97%)

1000-images with 53281-1.patch applied (5 runs, vmmap -resident):
1-new.vmmap:Writable regions: Total=2.1G written=40.8M(2%) resident=64.9M(3%) swapped_out=0K(0%) unallocated=2.1G(97%)
2-new.vmmap:Writable regions: Total=2.1G written=39.4M(2%) resident=63.5M(3%) swapped_out=0K(0%) unallocated=2.1G(97%)
3-new.vmmap:Writable regions: Total=2.1G written=39.2M(2%) resident=63.3M(3%) swapped_out=0K(0%) unallocated=2.1G(97%)
4-new.vmmap:Writable regions: Total=2.1G written=40.1M(2%) resident=64.3M(3%) swapped_out=0K(0%) unallocated=2.1G(97%)
5-new.vmmap:Writable regions: Total=2.1G written=41.7M(2%) resident=65.8M(3%) swapped_out=0K(0%) unallocated=2.1G(97%)

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