Performance Optimization

This document lists features and improvements that can be optimized in the Pipeline project.

Feature Enhancements

Context Timeout Control

Issue: Pipeline defines timeout but doesn't use context.WithTimeout to actually control timeout.

Recommendation:

• Use context.WithTimeout in Pipeline.Run() to wrap the incoming context
• Support timeout control at Stage/Job/Step levels
• Gracefully cancel executing tasks when timeout occurs

Error Retry Mechanism

Issue: Currently any step failure immediately stops the entire Pipeline, no retry mechanism.

Recommendation:

• Add retry configuration at Step level (retry count, retry interval)
• Support exponential backoff retry strategy
• Distinguish between retryable and non-retryable errors

Conditional Execution

Issue: All steps execute, cannot skip steps based on conditions.

Recommendation:

• Support if conditional expressions
• Support when conditions (based on environment variables, file existence, etc.)
• Support allow_failure option (failure doesn't interrupt Pipeline)

Performance Optimization

Parallel Execution Optimization

Recommendation:

• Optimize resource management during parallel execution
• Support dynamic concurrency adjustment
• Optimize Goroutine pool management

Caching Mechanism

Issue: No caching mechanism, each execution requires rebuilding/downloading.

Recommendation:

• Support file/directory caching
• Support Docker image caching
• Support dependency caching

Resource Limits

Recommendation:

• Support CPU and memory limits
• Support concurrency limits
• Support resource quota management

Best Practices

1. Reasonable Use of Parallel Execution

For independent tasks, use parallel execution:

stages:
  - name: build
    run_mode: parallel
    jobs:
      - name: build-frontend
        steps: [...]
      - name: build-backend
        steps: [...]

2. Optimize Docker Image Usage

• Use smaller base images
• Reuse Docker image layers
• Use multi-stage builds

3. Set Reasonable Timeout

Set reasonable timeout based on actual needs:

timeout: 3600  # 1 hour

4. Use Caching

For repeatedly used dependencies, use caching:

cache:
  paths:
    - node_modules/

5. Optimize Working Directory

• Use fast storage as working directory
• Clean up unnecessary files promptly
• Avoid creating many files on critical paths