Orbit builds such as https://ci.eclipse.org/orbit/job/orbit-simrel-maven-osgi/ have badly degraded performance

Summary

The builds used to take about 5 minutes and now can take as much as 1.5 hours:

Priority

• Urgent
• High
• Medium
• Low

Severity

• Blocker
• Major
• Normal
• Low

Impact

I know patience is a virtue, but it's kind of extreme here.