Disable swap in Docker & podman containers #9149
Merged
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This fixes the performance degradation issues seen when Docker is used with limited RAM.
For example, with 1GB allocated to Docker Desktop, minikube suffers a ~28% performance hit without this PR. With this PR, it performs the same as if there was 4GB of memory.
NOTE: The Docker kernel will still swap, and swap will still show up in
free
, as it is not cgroups aware. This merely keeps processes launched within minikube container from swapping.Related PR: #9144
Fixes: #8892 by ensuring that Docker has the same performance characteristics as our ISO -- less RAM does not make it slower.