Uploaded image for project: 'JDK'
  1. JDK
  2. JDK-6356456

REGRESSION: GZIPInputStream is slower on 1.4.2_10 than on 1.4.2_09

    XMLWordPrintable

Details

    Description

      Testcase (details can be found in the comments section):

      $ source ~/.java142_09
      $ java -fullversion
      java full version "1.4.2_09-b05"
      $ time java -classpath .:sharedlib/jload.jar DumpTest EXPDUMP > /dev/null
      Reading EXPDUMP
      End of EXPDUMP reached
      finished
      31.0u 1.0s 0:41 77% 0+0k 0+0io 0pf+0w

      $ source ~/.java142_10
      $ time java -classpath .:sharedlib/jload.jar DumpTest EXPDUMP > /dev/null
      Reading EXPDUMP
      End of EXPDUMP reached
      finished
      136.0u 1.0s 2:21 96% 0+0k 0+0io 0pf+0w

      $ source ~/.java15
      $ java -fullversion
      java full version "1.5.0_05-b05"
      $ time java -classpath .:sharedlib/jload.jar DumpTest EXPDUMP > /dev/null
      Reading EXPDUMP
      End of EXPDUMP reached
      finished
      28.0u 1.0s 1:52 25% 0+0k 0+0io 0pf+0w

      => In this example, 1.4.2_10 is ~4.4 times slower than 1.4.2_09 while executing SAPs testcase called DumpTest.

      Attachments

        Issue Links

          duplicates

          Bug - A problem which impairs or prevents the functions of the product. JDK-6348045 REGRESSION: serious performance degradation as GZIPInputStream is slower

          • P2 - Crashes, loss of data, severe memory leak.
          • Resolved
          relates to

          Bug - A problem which impairs or prevents the functions of the product. JDK-6206933 GZipOutputStream/InputStream goes critical(calls JNI_Get*Critical) and causes slowness

          • P2 - Crashes, loss of data, severe memory leak.
          • Resolved

          Bug - A problem which impairs or prevents the functions of the product. JDK-6364346 GZIPOutputStream is slower on 1.4.2_11-b02 than on 1.4.2_09

          • P3 - Major loss of function.
          • Resolved

          Bug - A problem which impairs or prevents the functions of the product. JDK-6438254 Very slow performance from GZIPInputStream in JDK 1.5.0_07-b03

          • P3 - Major loss of function.
          • Closed

          Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-2132422 REGRESSION: serious performance degradation as GZIPInputStream is slower

          • P2 - Crashes, loss of data, severe memory leak.
          • Closed

          Activity

            People

              pgsunw Praveen G (Inactive)
              jloefflm Johann Löfflmann (Inactive)
              Votes:
              0 Vote for this issue
              Watchers:
              1 Start watching this issue

              Dates

                Created:
                Updated:
                Resolved:
                Imported:
                Indexed: