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Bug ID: JDK-6348045 REGRESSION: serious performance degradation as GZIPInputStream is slower
JDK-6348045 : REGRESSION: serious performance degradation as GZIPInputStream is slower

Details
Type:
Bug
Submit Date:
2005-11-09
Status:
Resolved
Updated Date:
2014-02-26
Project Name:
JDK
Resolved Date:
2005-11-10
Component:
core-libs
OS:
generic,windows_xp
Sub-Component:
java.util.jar
CPU:
x86,generic
Priority:
P2
Resolution:
Fixed
Affected Versions:
1.4.2_10,5.0u6
Fixed Versions:
5.0u6 (b05)

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Sub Tasks

Description
A CAP member reports a performance problem with Java 5.0u6:

just run a small test program(PerformanceTest.java) and here 
are the results after we
 have executed it on a P4 3,2 GHZ HAT machine:

jdk1.4.2:
Time needed for copy the archive :65250 ms

jdk1.5.0_01:
Time needed for copy the archive :63594 ms

jre1.5.0_05: 
Time needed for copy the archive :31453 ms

jre1.5.0_06 build 03 / build 04: 
Time needed for copy the archive :179359 ms

                                    

Comments
EVALUATION

We have (in emergency mode) backed out the fix for
2129005: GZipOutputStream/InputStream goes critical(calls JNI_Get*Critical) and causes slowness
which will need rethinking and refixing in 1.4.2, 5.0u7, and mustang
                                     
2005-11-10
EVALUATION

Fix for 6206933 has been removed.
                                     
2005-11-10



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