JDK-4272634 : compiler flags hurt the performance of some of the graphics rendering loops
  • Type: Bug
  • Component: client-libs
  • Sub-Component: 2d
  • Affected Version: 1.3.0
  • Priority: P3
  • Status: Resolved
  • Resolution: Fixed
  • OS: windows_nt
  • CPU: x86
  • Submitted: 1999-09-16
  • Updated: 1999-10-05
  • Resolved: 1999-10-05
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Other
1.3.0 kestrelFixed
Related Reports
Relates :  
JDK-4185726 - JDK 1.2 drawImage very slow compared to JDK 1.1.7.
Description
The "-Os" compiler flag that was recently added to the win32 builds is
affecting the performance of the inner loops of some of the graphics
rendering code.  The following files are demonstrating noticeable 
performance degradation with the flag:

	src/share/native/sun/java2d/loops/GIFAcceleratorLoops.c
Comments
CONVERTED DATA BugTraq+ Release Management Values COMMIT TO FIX: kestrel FIXED IN: kestrel INTEGRATED IN: kestrel
14-06-2004
SUGGESTED FIX Remove the "-Os" flag for just the affected files.
11-06-2004
EVALUATION Adding the following line to BlitMacros.h causes all files with blit loops to be optimized for time instead of space: #pragma optimize("t", on) jim.graham@Eng 1999-09-21
21-09-1999