nodejs / mentorship

Node.js Mentorship Program Initiative

MIT License

585 stars 58 forks source link

[Mentorship Diary] Princiya and Stephen #85

Closed Bamieh closed 4 years ago

Bamieh commented 6 years ago

[Mentorship Diary] Princiya and Stephen

(Mentorship Round 1) Stephen will be mentoring Princiya on diagnostics.

Qard commented 6 years ago

Kickoff meeting (5 August 2018)

Youtube meeting recording: https://youtu.be/FmAcQiqKp1A

Scope Introduction

Stephen will be mentoring about diagnostics, with focus on time-travel debugging and tooling around the CPU profiler.

The Diagnostics Working Group leads various initiatives to improve the facilities for
understanding what goes on within a Node.js application. They maintain several tools
and parts of Node.js core code to support those needs.

Goals & Expectations

Learn about CPU Profiler output and identify useful ways to visualize the output data
Learn about Time-Travel Debugging and how to get involved in moving that forward

Availability

Meeting times will be coordinated through Slack. Stephen is available mostly any time except Tuesday and Wednesday mornings. The meetings will (probably) be on Zoom.

Privacy & CoC

We are both comfortable recording sessions and will record sessions and link to them on github.

Qard commented 6 years ago

Meeting 2 (August 8, 2018)

Forgot to record the meeting, sadly. I'll remember next time. 😓

Discussed node --inspect and using Chrome Dev Tools
Introduced the v8-profiler module
Introduced async_hooks

Princiya will experiment with v8-profiler and async_hooks and consider novel ways to connect the two to capture multiple profiles and connect them together.

Qard commented 6 years ago

Meeting 3 (August 23, 2018)

Discussed:

How sampling profilers work
How garbage collectors track memory
How async_hooks correlates callbacks of async tasks to the point at which it was called, and the benefits

Princiya has decided to write a blog post about things that might not be as clear to someone outside of the diagnostics bubble. It should be a big help for introducing people to the subject of diagnostics. 🎉

Qard commented 6 years ago

Meeting 4 (September 12, 2018)

Discussed:

Currently active development (trace_events, async_hooks destroy/resource ideas)
Differences with Firefox dev tools
Needs of Diagnostics WG in terms of documentation, outreach, etc.

I will continue to work with Princiya to make the Diag WG more approachable and to encourage more community involvement.

princiya commented 6 years ago

Here is my first blog post: https://princiya777.wordpress.com/2018/09/09/node-js-diagnostics/

Bamieh commented 6 years ago

@princiya oh wow amazing read, I love the drawings!

Do you mind if we share it on twitter?

princiya commented 6 years ago

@Bamieh please do. thanks.

saulonunesdev commented 4 years ago

@Qard Confirmed that this mentoring has ended and the diary was drafted to markdown under mentorship-diaries folder