9-11 September 2019
Europe/Lisbon timezone

Task latency-nice

9 Sep 2019, 18:15
15m
Esmerelda-room-I&II (Corinthia Hotel Lisbon)

Esmerelda-room-I&II

Corinthia Hotel Lisbon

126

Speaker

Subhra Mazumdar

Description

Currently there is no user control on how much time scheduler should spend searching for CPUs when scheduling a task. It is hardcoded logic based on some heuristics that doesn't work well in many cases. e.g. very short running tasks. Provide a new latency-nice property user can set for a task (similar to nice value) that controls the search time and also potentially the preemption logic. Also discuss best interfaces to have this (potentially Cgroups).

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