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Re: [eclipse-dev] Fw: [Bug 215464] Regression in org.eclipse.core perf test: StartupTest. testApplicationStartup (aka 'Core Headless Startup')

This can happen even on normal tests (eg. not commented). This is developer
responsibility to verify that he did not change the test context.
In other words, even when you see a (strong) green results, you still have
to know why it happened and be able to explain it...


Cordialement/Regards,

Frédéric




                                                                       
             Thomas Watson                                             
             <tjwatson@xxxxxx.                                         
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             01/17/2008 06:46                                      Subject
             PM                        Re: [eclipse-dev] Fw: [Bug 215464]
                                       Regression in   org.eclipse.core
                                       perf test: StartupTest.         
             Please respond to         testApplicationStartup      (aka
                 "General              'Core Headless Startup')        
                development                                            
              mailing list of                                          
                the Eclipse                                            
                 project."                                             
             <eclipse-dev@ecli                                         
                 pse.org>                                              
                                                                       
                                                                       




I also think it is a little odd. Something can change in the system that
artificially improves performance also. In this case, imagine if we
dramatically reduced the number of source bundles from one release to the
next. All of a sudden our start up performance numbers would have improved
but nothing would have been done to actually make the system faster. A
product with the same amount of bundles from one release to the next would
see no improvement in performance.

Tom



(Embedded image moved to file: pic04108.gif)Inactive hide details for Mike
Wilson ---01/17/2008 11:31:40 AM---Am I the only person who thinks this is
odd?Mike Wilson ---01/17/2008 11:31:40 AM---Am I the only person who thinks
this is odd?
                                                                       
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Am I the only person who thinks this is odd?

To me, the grey coloring means "there is something wrong with the test (or
the system has changed in a way that invalidates it), so the result isn't
interesting" -- I don't actually care whether it's slower or faster. For
example, ongoing fixes elsewhere could cause the test to run faster, making
the test *look* like it's working again, even though it's still not

McQ.




            Frederic Fusier
            <frederic_fusier@
            fr.ibm.com>                                                To
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            17/01/2008 12:04                                      Subject
            PM                        [eclipse-dev] Fw: [Bug 215464]
                                      Regression in org.eclipse.core perf
                                      test: StartupTest.
            Please respond to         testApplicationStartup (aka 'Core
                "General              Headless Startup')
               development
             mailing list of
               the Eclipse
                project."
            <eclipse-dev@ecli
                pse.org>







Note that when a degradation comment is set on a test, the fingerprint bar
becomes gray only if the test result is negative.

Cordialement/Regards,

Frédéric


----- Forwarded by Frederic Fusier/France/IBM on 01/17/2008 05:43 PM -----

            bugzilla-daemon@e
            clipse.org
                                                                       To
            01/17/2008 04:25          Frederic Fusier/France/IBM@IBMFR
            PM                                                         cc

                                                                  Subject
                                      [Bug 215464] Regression in
                                      org.eclipse.core perf test:
                                      StartupTest. testApplicationStartup
                                      (aka 'Core Headless Startup')










https://bugs.eclipse.org/bugs/show_bug.cgi?id=215464
Product/Component: Equinox / Framework




--- Comment #4 from Thomas Watson <tjwatson@xxxxxxxxxx>  2008-01-17
10:25:56 -0400 ---
I released a degradation comment for the core headless startup test
(StartupTest.java) which points to this bug to explain the degradation.


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