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firefox-devtools / profiler

Firefox Profiler — Web app for Firefox performance analysis
https://profiler.firefox.com
Mozilla Public License 2.0
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500ms of jank when showing the marker chart for this thread #5120

Open fqueze opened 2 months ago

fqueze commented 2 months ago

Example profile: https://share.firefox.dev/3XdUInk Profile of the jank: https://share.firefox.dev/3XiH81M

┆Issue is synchronized with this Jira Task

julienw commented 1 month ago

A few sources of the jank have been removed in #5121, especially switching to the marker chart the second time is now near instant. But it's still slow to switch to it for the first time, so I'd like to keep this issue around for now.