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Bazel resource scheduling
1 - bazel-resource-scheduling Specification
Purpose
Reduce resource contention from independent Bazel builds on host-bot through conservative per-invocation scheduling defaults.
Requirements
Requirement: Reduced per-invocation scheduling defaults
The managed user Bazel configuration SHALL set four concurrent jobs and a local CPU scheduling budget of HOST_CPUS*0.25 for builds and tests. These defaults SHALL NOT be described as an aggregate host-wide resource cap.
Scenario: Build or test reads the managed defaults
- WHEN a new Bazel build or test invocation loads the managed user configuration without overriding its resource settings
- THEN it receives
--jobs=4and--local_resources=cpu=HOST_CPUS*0.25
Scenario: Independent workspaces build concurrently
- WHEN separate Bazel servers build in multiple workspaces
- THEN each receives its own scheduling budget, without sharing an aggregate limit