Summary: Ref T8617. Provide general documentation with tools for debugging hangs and slow pages. Update DarkConsole docs and discuss how to use Services and XHProf. Explain what Multimeter is for and how to use it. Update XHProf docs and provide some usage hints.
Test Plan: Read documentation.
Reviewers: joshuaspence, btrahan
Reviewed By: joshuaspence, btrahan
Subscribers: joshuaspence, epriestley
Maniphest Tasks: T8617
Differential Revision: https://secure.phabricator.com/D13359
Summary:
Ref T6930. This application collects and displays performance samples -- roughly, things Phabricator spent some kind of resource on. It will collect samples on different types of resources and events:
- Wall time (queries, service calls, pages)
- Bytes In / Bytes Out (requests)
- Implicit requests to CSS/JS (static resources)
I've started with the simplest case (static resources), since this can be used in an immediate, straghtforward way to improve packaging (look at which individual files have the most requests recently).
There's no aggregation yet and a lot of the data isn't collected properly. Future diffs will add more dimension data (controllers, users), more event and resource types (queries, service calls, wall time), and more display options (aggregation, sorting).
Test Plan: {F389344}
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T6930
Differential Revision: https://secure.phabricator.com/D12623
