Hello Equinox and Platform/UI committers, We recently measured startup performance of our IDE based on Eclipse. We measured 4 milestones:
- 20140325 (based on Kepler SR2), - 20141014 (based on Luna SR1), - 20150224 (based on Luna SR2) - 20150224+mars (based on Mars M5a). Attached are the findings in summary: for each milestone, the left-hand column has CPU time in milliseconds, relative % within the milestone, and the delta compared to the previous milestone. The sad news are that startup performance got worse on every iteration - from 8 seconds with Kepler SR2, to almost 10 seconds with Mars M5a. We used JProfiler to measure warmstart performance after a couple of "restarts" into a Workspace that includes a C/C++ project and had an editor open. Then, in JProfiler we filtered-out any JDK and JFace packages and made their numbers aggregate up to the callers; Finally, we accumulated numbers by package prefix to see who's the biggest contributors to startup time. We didn't see any truly significant performance hit, but still the gentle decrease in performance does feel like a "death of a 1000 cuts" issue. Given that M7 is traditionally a "Performance Milestone", I was wondering what the committers thought: Are there any known performance issues that were already planned to be addressed ? Looking at http://download.eclipse.org/eclipse/downloads/drops4/S-4.5M6-201503200800/performance/performance.php I see a 5.8% performance decrease on the "Core UI Startup" fingerprint. Can that be seen as representative for the average user's IDE startup experience ? How would it compare to a Kepler, or Eclipse 3.8.2 baseline ? I would be interested in hearing any thoughts. Thanks! Martin -- Martin Oberhuber, SMTS / Product Owner - Development Tools, Wind River direct +43.662.457915.85 fax +43.662.457915.6
201502.pdf
Description: 201502.pdf
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