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Type: Bug
Resolution: Not an Issue
Priority: P2
Fix Version/s: None
Affects Version/s: 5.0u10
Component/s: core-libs
Labels:
- regression

Subcomponent:
java.util.jar
CPU:

generic
OS:

generic

5u6 is faster than 5u10 if we compare the performance of the GZIPInputStream.

$ java -DLOOPS=1000 -showversion CpuPerformanceInflateBytes
java version "1.5.0_06"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_06-b05)
Java HotSpot(TM) Server VM (build 1.5.0_06-b05, mixed mode)

time: 17982

$ java -DLOOPS=1000 -showversion CpuPerformanceInflateBytes
java version "1.5.0_10"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_10-b03)
Java HotSpot(TM) Server VM (build 1.5.0_10-b03, mixed mode)

time: 19582

The microbenchmark is attached to this report.

relates to

JDK-6364346 GZIPOutputStream is slower on 1.4.2_11-b02 than on 1.4.2_09

Resolved

JDK-6206933 GZipOutputStream/InputStream goes critical(calls JNI_Get*Critical) and causes slowness

Resolved

JDK-6507548 REGRESSION: slower performance of GZIPInputStream for 5u10 (multi threaded testcase)

Closed

Assignee:: Dave Bristor (Inactive)

Reporter:: Johann Löfflmann (Inactive)

Votes:: 0 Vote for this issue

Watchers:: 0 Start watching this issue

Created:: 2006-12-21 06:16

Updated:: 2010-07-29 15:16

Resolved:: 2006-12-21 12:24

Imported:: 16/Sep/12 10:35 AM

Indexed:: 18/Jul/12 5:40 AM

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