JDK-7120500 : sun.awt.image.InputStreamImageSource.doFetch() is considerably slower on Java Web Start 6
  • Type: Bug
  • Component: deploy
  • Sub-Component: webstart
  • Affected Version: 6u29
  • Priority: P3
  • Status: Closed
  • Resolution: Cannot Reproduce
  • OS: windows
  • CPU: x86
  • Submitted: 2011-12-12
  • Updated: 2012-03-16
  • Resolved: 2012-03-16
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JDK 7
7u6Resolved
Related Reports
Relates :  
JDK-7118421 - RFE: JNLPClassLoader to use hashmap instead of ArrayList
Description
sun.awt.image.InputStreamImageSource.doFetch() is considerably slower 
when used with Java Web Start 6 than with Java Web Start 1.4.2.
Comments
EVALUATION The customer finally admitted that their experimental setup suffered from a serious flaw: when they carried out these measurements, the performance was considerably influenced by network latency of a remote connection. The remote connection was between two locations, which were several hundred kilometers away. The experimental results could not be duplicated in the location, where all resources were local. Closing as 'not reproducible'.
16-03-2012
EVALUATION At this point it seem to be duplicate of 7118421. I failed to craft artificial test proving doFetch() is slow and looking to the implementation i see that 7118421 may contribute here. .nps files do not really provide me any insight as they are not very detailed and i do not understand how other numbers were measured. Marking CR as incomplete until we get more data/tests. Ideally on the build that has fix for 7118421.
13-01-2012