995058 - [Meta] TaskTracer and Nephthys

Status: RESOLVED WONTFIX

(Core :: Gecko Profiler, defect, P5)

Description

[Shelly Lin [:shelly]]

This the tracking bug of TaskTracer and Isis.

What is TaskTracer?

TaskTracer provides a way to trace the correlation between different tasks, across threads and processes. Unlike sampling based profilers, TaskTracer can tell you where a task is dispatched from, what it's original source was, how long it spent in the event queue, and how long it spent on execution.

Source Events are usually some kinds of I/O events we're interested in, such as touch events, timer events, network events, etc. When a source event is created, TaskTracer records the entire chain of Tasks and nsRunnables as they are dispatched to different threads and processes. It records latency, execution time, etc. for each Task and nsRunnable that chains back to the original source event.

What is Isis?

Isis is a super cool front-end tool of parsing and presenting data from TaskTracecr.

Comment 1

[Shelly Lin [:shelly]]

Attachment: Wiki of TaskTracer

The Wiki page of TaskTracer and Isis
https://wiki.mozilla.org/TaskTracer

Comment 2

[Shelly Lin [:shelly]]

Attachment: Github repo of TaskTracer

The latest github repo of TaskTracer.
https://github.com/shellylin/gecko-dev/tree/tt-v4

Comment 3

[Shelly Lin [:shelly]]

Attachment: Github repo of TaskTracer base on 1.3T

The github repo of TaskTracer base on 1.3T.
https://github.com/shellylin/gecko-dev/tree/tt-1.3t

Comment 4

[Shelly Lin [:shelly]]

Attachment: Github repo of data converter

The github repo of data converter.
https://github.com/ginayeh/task-tracer-converter

Comment 5

[Shelly Lin [:shelly]]

Attachment: Landing page of Isis

Landing page of Isis.
http://alivedise.github.io/isis/

Comment 6

[Gerald Squelart (he/him) (not at Mozilla since 2022-09-15)]

Task Tracer was removed in bug 1715257.