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KEP-2570keps/sig-node/2570-memory-qos

Memory QoS

implementablebetasig-nodelatest v1.38
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This KEP introduces Memory Quality of Service (QoS) support for Kubernetes using cgroups v2 memory controller features. It maps pod memory requests to memory.min (guaranteed memory protection from reclaim) and calculates memory.high (throttling threshold) based on a configurable throttling factor. This enables better memory isolation and protection for conta… Full summary

This KEP introduces Memory Quality of Service (QoS) support for Kubernetes using cgroups v2 memory controller features. It maps pod memory requests to memory.min (guaranteed memory protection from reclaim) and calculates memory.high (throttling threshold) based on a configurable throttling factor. This enables better memory isolation and protection for containerized workloads.

Facts

Authors
@sohankunkerkar@qiwang19@xiaoxubeii
Approvers
@derekwaynecarr
Reviewers
@mrunalp@derekwaynecarr@pacoxu@ajaysundark@ndixita@giuseppe@bobbypage
PRR approvers
@kannon92beta@johnbelamaricalpha
Tracking issue
#2570(opens GitHub in a new tab) openreopenedmilestone v1.38sig/nodestage/betatracked/yeslead-opted-in
Milestones
alpha v1.27beta v1.37
Participating SIGs
none
Feature gates
NodeMemoryReservationPolicy, MemoryQoS
Created / last updated
2021-03-14 / 2026-09-04
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