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[equinox-dev] How to measure and improve Eclipse 4.4 Statup Performance ?

Dear Equinox Committers,

 

As we’ve been upgrading our eclipse-based product to Luna, I wanted to validate that our startup performance is still good:

 

·         get an *exact* measurement for the wallclosck time Eclipse takes from double clicking eclipse.exe to seeing the UI,

·         get activation traces, such that I can debug reasons for bundle activations that are unexpected,

·         get some per-bundle timing information to understand which bundles contribute most to startup time.

 

In the past, all that was possible using –debug org.eclipse.osgi tracing options, plus Core Tools runtime spy. But it looks like ALL of the infrastructure is now broken in Luna:

 

1.       BundleStats are no longer collected for usage in Runtime Spy – looks like this feature was just removed:
https://bugs.eclipse.org/bugs/show_bug.cgi?id=412502
As a result, the Runtime Spy looks pretty much useless – there’s no data in the “Runtime Spy” perspective at all even though monitoring is enabled.

2.       The org.eclipse.osgi/trace/activation=true tracing option doesn’t print activation stack traces to “runtime.traces” any more (is this just a bug / oversight or am I doing something wrong?)

3.       The Application Started: <timestamp> output which we get with –debug –consoleLog does not seem to be accurate any more. Measuring wallclock time, Eclipse is on average 5 seconds slower than indicated by the timestamp.

 

Reading the docs, I found a reference to the newly introduced debug/bundleTime tracing option, but I’m unsure how to interpret the data; it also seems to be very inexact and thus useless to me (getting nanosecond resolution would be good

when available).

 

Is there any new infrastructure available to get me the data I need ?

How do others measure and improve startup performance ?

Shall I just file defects for the regressions observed ?

 

Thanks,

Martin

--

Martin Oberhuber, SMTS / Product Owner – Development Tools, Wind River

direct +43.662.457915.85  fax +43.662.457915.6