Varun Vasudev created YARN-2531:
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Summary: CGroups - Admins should be allowed to enforce strict cpu
limits
Key: YARN-2531
URL: https://issues.apache.org/jira/browse/YARN-2531
Project: Hadoop YARN
Issue Type: Improvement
Reporter: Varun Vasudev
Assignee: Varun Vasudev
>From YARN-2440 -
{quote}
The other dimension to this is determinism w.r.t performance. Limiting to
allocated cores overall (as well as per container later) helps orgs run
workloads and reason about them deterministically. One of the examples is
benchmarking apps, but deterministic execution is a desired option beyond
benchmarks too.
{quote}
It would be nice to have an option to let admins to enforce strict cpu limits
for apps for things like benchmarking, etc. By default this flag should be off
so that containers can use available cpu but admin can turn the flag on to
determine worst case performance, etc.
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