JDK-6691737 : D3D: inconsistent vsync rate with v-synced BufferStrategy
  • Type: Bug
  • Component: client-libs
  • Sub-Component: 2d
  • Affected Version: 6u10
  • Priority: P3
  • Status: Closed
  • Resolution: Fixed
  • OS: windows_xp
  • CPU: x86
  • Submitted: 2008-04-21
  • Updated: 2010-10-14
  • Resolved: 2008-05-13
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6u10 b24Fixed
Related Reports
Relates :  
In some cases the V-synced buffer strategy doesn't perform as well as
expected - the animation doesn't look smooth all the time.

SUGGESTED FIX http://sa.sfbay.sun.com/projects/java2d_data/6u10/6691737.0

EVALUATION It looks like this depends on whether some application in the system uses high resolution timer or not. We should use D3DPRESENT_INTERVAL_ONE presentation interval instead of D3DPRESENT_INTERVAL_DEFAULT for v-synced swap chains to get more precise v-sync tracking (at the expense of slightly higher cpu usage (2-3%).