[OAK-3695] Expose ratio between waste and real data

• Type: Story
• Status: Resolved
• Priority: Major
• Resolution: Won't Fix
• Component/s: segment-tar
• Labels: gc
• Epic Link: Improve live monitoring
• Assignee: Unassigned
• Reporter: Valentin Olteanu
• Created: 30/Nov/15 10:44
• Updated: 10/Oct/16 10:00
• Resolved: 21/Sep/16 15:32

Description

As a user, I want to know the ratio (or precise absolute values) between waste and real data on TarMK, so that I can decide if Revision GC needs to be run. The measurement has to be done on a running repository and without impacting the performance.

This would also help measure the efficiency of Revision GC and see the effect of improvements.

Issue Links

• depends upon: OAK-4293 Refactor / rework compaction gain estimation