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

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

Type: Bug
Component: core-libs
Sub-Component: java.util.jar
Affected Version: 1.4.2_10,5.0u6

Priority: P2
Status: Resolved
Resolution: Fixed
OS: generic,windows_xp
CPU: generic,x86

Submitted: 2005-11-09
Updated: 2014-02-26
Resolved: 2005-11-10

Versions (Unresolved/Resolved/Fixed)

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.

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Other
1.4.2_11Fixed

Related Reports

Duplicate :	JDK-6356456 - REGRESSION: GZIPInputStream is slower on 1.4.2_10 than on 1.4.2_09
Relates :	JDK-6206933 - GZipOutputStream/InputStream goes critical(calls JNI_Get*Critical) and causes slowness
Relates :	JDK-6364346 - GZIPOutputStream is slower on 1.4.2_11-b02 than on 1.4.2_09
Relates :	JDK-6507118 - REGRESSION: Testcase from CR 6348045 runs much slower on Java SE 6 than on J2SE 5
Relates :	JDK-6507548 - REGRESSION: slower performance of GZIPInputStream for 5u10 (multi threaded testcase)
Relates :	JDK-2129005 - GZipOutputStream/InputStream goes critical(calls JNI_Get*Critical) and causes slowness
Relates :	JDK-6399199 - Improve performance of Deflater
Relates :	JDK-6438254 - Very slow performance from GZIPInputStream in JDK 1.5.0_07-b03
Relates :	JDK-5043044 - GZIPOutputStream doesn't scale on 4way Windows systems
Relates :	JDK-6975829 - Perf. of gzip in existing JDKs is too slower than in 1.3.1

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 Fix for 6206933 has been removed.

10-11-2005

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

10-11-2005