microsoft / microsoft/tolerant-php-parser

Establish statistically significant and consistent performance tests

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performance test-infrastructure
Dominant language
PHP
Stars
894
Forks
85
Avg merge
2d 13h
Merged PRs (30d)
3

Description

Currently, there is a lot of variance with performance tests - we need to set up an environment where:

  • we can understand the impact of our work on multiple machine configurations
  • we can minimize variance between test runs and have higher confidence that a potential performance optimization is actually adding value rather than unnecessarily complicating the codebase
  • the tests should run continuously so we can detect issues as soon as possible

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

No files, tests, or CI entry points are named. Start by locating the existing performance tests and continuous-integration configuration, then determine how machine configurations, run variance, statistical confidence, and continuous detection should be measured; done means repeatable results that reliably identify meaningful regressions or improvements.

Written by the indexing model from the issue text.

Assessment

Tech stack
php
Domain
performance, testing
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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