JDK-6887978 : compilation very slow for classes with many fields
- Type: Bug
- Component: tools
- Sub-Component: javac
- Affected Version: 7
- Priority: P4
- Status: Closed
- Resolution: Duplicate
- OS: generic
- CPU: generic
- Submitted: 2009-10-03
- Updated: 2010-10-28
- Resolved: 2010-10-28
The Version table provides details related to the release that this issue/RFE will be addressed.
Unresolved : Release in which this issue/RFE will be addressed.
Resolved: Release in which this issue/RFE has been resolved.
Fixed : Release in which this issue/RFE has been fixed. The release containing this fix may be available for download as an Early Access Release or a General Availability Release.
To download the current JDK release, click here.
Unresolved : Release in which this issue/RFE will be addressed.
Resolved: Release in which this issue/RFE has been resolved.
Fixed : Release in which this issue/RFE has been fixed. The release containing this fix may be available for download as an Early Access Release or a General Availability Release.
To download the current JDK release, click here.
| JDK 7 |
|---|
7Resolved  |
Related Reports
|
Duplicate :
|
|
|
Relates :
|
|
|
Relates :
|
|
|
Relates :
|
Description
test/gc/test/gc/6845368/bigobj.java in the hotspot repo includes a class with close to 64K fields. javac takes several minutes to compile this file on slower machines. Sample output from collect/er_print:
Functions sorted by metric: Exclusive User CPU Time
Excl. User CPU Incl. User CPU Name
sec. % sec. %
166.506 100.00 166.506 100.00 <Total>
94.656 56.85 95.837 57.56 com.sun.tools.javac.code.Scope.lookup(com.sun.tools.javac.util.Name)
57.200 34.35 57.200 34.35 com.sun.tools.javac.code.Scope$Entry.next()
5.794 3.48 5.794 3.48 <JVM-System>
1.181 0.71 1.181 0.71 com.sun.tools.javac.code.Scope$Entry.access$000(com.sun.tools.javac.code.Scope$Entry)
0.220 0.13 0.220 0.13 <Unknown>
0.200 0.12 112.809 67.75 com.sun.tools.javac.comp.Check.checkConflicts(com.sun.tools.javac.util.JCDiagnostic$DiagnosticPosition, com.sun.tools.javac.code.Symbol, com.sun.tools.javac.code.Symbol$TypeSymbol)
0.180 0.11 0.440 0.26 com.sun.tools.javac.parser.Scanner.scanIdent()
0.170 0.10 0.170 0.10 com.sun.tools.javac.util.List.nonEmpty()
0.160 0.10 41.099 24.68 com.sun.tools.javac.comp.MemberEnter.visitVarDef(com.sun.tools.javac.tree.JCTree$JCVariableDecl)
Comments
|