JDK-4693297 : Performance regression in sun.misc.Unsafe 64-bit restructuring
  • Type: Bug
  • Component: hotspot
  • Sub-Component: runtime
  • Affected Version: 1.4.1
  • Priority: P3
  • Status: Closed
  • Resolution: Fixed
  • OS: generic
  • CPU: generic
  • Submitted: 2002-05-29
  • Updated: 2012-10-08
  • Resolved: 2002-05-30
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Other
1.4.1 betaFixed
Related Reports
Relates :  
JDK-4616656 - Need a more portable way to unsafely access fields in JDk 1.4
Relates :  
JDK-4690509 - Sybase Java Application startup time is SLOW in JDK 1.4 compared to JDK 1.3.1_02
Relates :  
JDK-4679390 - sun.misc.Unsafe needs to bind to new JVM native methods
Description
The fixes for 4679390 and 4616656 included a respecification of
Unsafe.staticFieldBase(Class) in terms of Unsafe.staticFieldBase(Field). This
accidentally introduced a performance regression in the reflection
implementation (sun.reflect.UnsafeFieldAccessorImpl), which uses the first
variant but which could just as easily use the second.
Comments
CONVERTED DATA BugTraq+ Release Management Values COMMIT TO FIX: hopper-beta FIXED IN: hopper-beta INTEGRATED IN: hopper-beta
14-06-2004
EVALUATION This is a one-line fix and has been approved for 1.4.1. ###@###.### 2002-05-29
29-05-2002