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Bug 325746

Summary:	[ds] expensive manifest localization on startup
Product:	[Eclipse Project] Equinox	Reporter:	Thomas Watson <tjwatson>
Component:	Compendium	Assignee:	equinox.compendium-inbox <equinox.compendium-inbox>
Status:	RESOLVED FIXED	QA Contact:
Severity:	normal
Priority:	P3	CC:	browe, caniszczyk, jcagle, john.arthorne, melickm, s.boshev, tjwatson
Version:	3.5	Keywords:	performance
Target Milestone:	3.4.2+
Hardware:	PC
OS:	Windows XP
Whiteboard:
Bug Depends on:	272087
Bug Blocks:

Description Thomas Watson

2010-09-20 08:44:12 EDT

+++ This bug was initially created as a clone of Bug #272087 +++

N20090412

Profiling startup of a simple headless application, there is a significant hit in the ds activator due to computation of localized manifest data. It looks like we can make an optimization similar to bug 271621 to avoid this computatation (use getHeaders("") instead of getHeaders(). The two invocations of getHeaders() in ds activation cost 8% of the total startup time.

See Activator.start line 157 and SCRManager.startedBundle line 477.

----------------------------

Opening this bug to release to 3.4.2+ stream.  See patch on bug272087

Comment 1 Thomas Watson

2010-09-20 08:48:06 EDT

I released the patch for 3.4.2+.  Thanks Stoyan.

Comment 2 Billy Rowe

2010-09-20 09:18:57 EDT

Thank you for the quick turnaround!