[MESOS-2700] Determine CFS behavior with biased cpu.shares subtrees

• Type: Task
• Status: Resolved
• Priority: Major
• Resolution: Won't Fix
• Affects Version/s: 0.22.0
• Component/s: containerization
• Labels: twitter
• Epic Link: Oversubscription
• Story Points: 13
• Assignee: Unassigned
• Reporter: Ian Downes
• Created: 06/May/15 17:20
• Updated: 26/Apr/17 16:54
• Resolved: 18/May/15 17:03

Description

See this ticket for context.

• Understand the relationship between cpu.shares and CFS quota.
• Determine range of possible bias splits
• Determine how to achieve bias, e.g., should 20:1 be 20480:1024 or ~1024:50
• Rigorous testing of behavior with varying loads, particularly the combination of latency sensitive loads for high biased tasks (non-revokable), and cpu intensive loads for the low biased tasks (revokable).
• Discover any performance edge cases?

Issue Links

• is required by: MESOS-2652 Update Mesos containerizer to understand revocable cpu resources