2026-05-26 · Compliance Engineering

Custom CTS Pipeline Optimizations

Engineering note from 0cmlabs.

Scope

This placeholder captures the backbone of a custom CTS optimization strategy.

• Build shards by subsystem ownership rather than raw test count.
• Detect flaky signatures before rerun budgets are consumed.
• Preserve reproducibility across lab and CI hardware classes.

Optimization Priorities

1. Stable device provisioning with immutable test images.
2. Incremental test selection driven by changed Android modules.
3. Automated failure bucketing for deterministic triage.

Example Snippet

cts-tradefed run cts \
  --module CtsMediaTestCases \
  --retry-strategy ITERATIONS \
  --max-testcase-run-count 2

Current Status

Pipeline model validated; a deeper architecture writeup is scheduled next.