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| author | tschmelcher@chromium.org <tschmelcher@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2011-07-25 22:13:52 +0000 |
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| committer | tschmelcher@chromium.org <tschmelcher@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2011-07-25 22:13:52 +0000 |
| commit | 9cf755682fcff0aa79e64c6f4fcb7ced80547d67 (patch) | |
| tree | 227975248d1e781ac949dcde1a2291c11919d838 /ppapi/cpp | |
| parent | b8fede4e01b906a65ca9eb816e2cab0694810270 (diff) | |
| download | chromium_src-9cf755682fcff0aa79e64c6f4fcb7ced80547d67.zip chromium_src-9cf755682fcff0aa79e64c6f4fcb7ced80547d67.tar.gz chromium_src-9cf755682fcff0aa79e64c6f4fcb7ced80547d67.tar.bz2 | |
Avoid double-buffering windowless plugins and instead use buffer flipping when feasible. This can significantly reduce the CPU usage of pages that host windowless plugins (down by ~15% absolute CPU usage on my old MacBookPro, or about a 40% relative decrease).
Also simplify the OS X code for managing TransportDIBs by creating them in uncached mode and transfering the FileDescriptors using dup+auto-close.
TEST=(OS X 10.5) Google voice and video chat (O3D), YouTube, www.dkmsoftware.com/Yubotu.htm, and trailers.apple.com, incl. with violent resizing, and analyzed perf with Shark; (OS X 10.5, OS X 10.6, Linux, Windows) http://www.communitymx.com/content/source/E5141/wmodeopaque.htm, http://www.communitymx.com/content/source/E5141/wmodetrans.htm, http://www.communitymx.com/content/source/E5141/wmodenone.htm, hand-crafted perf test using Flash with wmode=opaque, analyzed perf with Activity Monitor / top / Process Explorer, verified in the debugger that buffer flips do not cause NPP_SetWindow calls
BUG=none
Review URL: http://codereview.chromium.org/7171024
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@93970 0039d316-1c4b-4281-b951-d872f2087c98
Diffstat (limited to 'ppapi/cpp')
0 files changed, 0 insertions, 0 deletions