profiler

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This is not something that is on our immediate roadmap yet, but it might be useful for later. It could be useful to hover over a parameter to see its...

canova

500ms of jank when showing the marker chart for this thread

1

Example profile: https://share.firefox.dev/3XdUInk Profile of the jank: https://share.firefox.dev/3XiH81M ┆Issue is synchronized with this [Jira Task](https://mozilla-hub.atlassian.net/browse/FP-775)

fqueze

Option for custom marker ordering

3

The [vernier](https://github.com/jhawthorn/vernier) CRuby profiler uses a [fork](https://github.com/tenderlove/profiler) of the Firefox profiler as it's viewer, and I thought I'd first check if this feature would be generally useful before possibly implementing...

joshuay03

Steps to reproduce: 1. Go to any profile's marker chart, e.g. https://share.firefox.dev/3Y0Xc90 2. Type into the search filter field. Whenever a new filter is applied, the chart contents disappear for...

mstange

Make inverting the call tree fast, by computing inverted call nodes lazily

2

[Deploy preview](https://deploy-preview-4900--perf-html.netlify.app/public/yys1g46mp9bqebf3e53x9j70gsbhj5gwdbd0be8/calltree/?globalTrackOrder=0&profileName=Firefox%20Sp3-BrowserWin-Nov9&thread=0&v=10) Fixes #467, fixes #337, fixes #3313. Some changes that could still be made to this PR: - [x] A commit at the end which removes bisectLowerBound(), bisectUpperBound(), and...

mstange

[Production](https://share.firefox.dev/47G6fAA) | [Deploy preview](https://deploy-preview-5141--perf-html.netlify.app/public/28p7jvd50ycpf740a3y7cqqfp8mqp6671fzwt58/flame-graph/?globalTrackOrder=0wxt&hiddenGlobalTracks=1wxt&hiddenLocalTracksByPid=62037-1w3~64317-0~64319-0~64247-0~62826-0~64259-0~64270-0~62750-01~63028-0~62986-01~63847-0~63181-0~63837-0~63574-0~62570-0~63612-0~62790-0~62722-01~63042-0~63635-0~62955-0~62930-0~62582-01~62576-0~63512-0~62921-0~63148-0~63213-0~62806-0~63352-0~63268-0~62464-0~63092-0~62630-0~62862-0~63450-0~62610-0~63416-01~63207-01~62910-0~62666-0~62458-0~63165-0~62890-0~62672-0~63832-0~62267-0&thread=0&transforms=f-combined-0gjMkzVrzVszW2zC9wzCbzW3zCdzCezWlwzWoAX1zWpzWrx.8x.awx.cx.hx.ix.kzS1DY6DYaDYbyCpwyCsyD0MFfMFgyD0yEbyEdDYcwDYeDYgySbAYm~ff-15326~munfs&v=10) This makes it easier to analyze profiles with JIT frames. This transform gets rid of 0x12345 frames in the call tree - but only those that...

mstange

Null checks to handle Missing unified string optional values

3

Fixes: https://github.com/firefox-devtools/profiler/issues/5109 Adding null check in the if statement so that it enters the if-block only if `value` field is defined and not empty.

itsarijitray

Can't load perf profile.

7

Trying to upload [this profile](http://crisal.io/tmp/daily-perf.txt) taken with perf as per the instructions fails in all browsers. Maybe the profile is too big? But it seems to try to do `JSON.parse`...

emilio

Proposed tweak to marker JSON format: Move type outside of data, into its own column

1

The schema of a marker is currently indicated by a `type` property on the `data` object of a marker. It would be nice if the type was stored outside of...

mstange

See issue #337, especially the comments https://github.com/firefox-devtools/profiler/issues/337#issuecomment-394373554 and https://github.com/firefox-devtools/profiler/issues/337#issuecomment-774216518. Currently the activity graphs in the timeline are computed from the inverted tree: as a result, when we click on "invert...

julienw