SYSTEM Cited by 1 source
Tracery (Meta)¶
Tracery is Meta's internal trace-visualisation tool — the timeline-oriented sibling of Scuba. Used when correlated but different streams of profile data are best viewed on a single timeline. Introduced publicly at a Meta Atscale event: facebook.com/atscaleevents/videos/996197807391867.
This wiki page is a stub — the 2025-01-21 Strobelight post is the first reference to Tracery on the wiki.
Role on this wiki¶
- Timeline visualisation surface for Strobelight's Crochet profiler, which combines "service request spans, CPU-cycles stacks, and off-CPU data to give users a detailed snapshot of their service."
- Engineered for responsive interaction — "powered by a client-side columnar database (written in JavaScript!), which makes it very fast when it comes to zooming and filtering."
- Users can build custom visualisations + curated workspaces to share — the notebook/dashboard sibling of Scuba's ad-hoc query model.
Seen in¶
- sources/2025-03-07-meta-strobelight-a-profiling-service-built-on-open-source-technology — named as Strobelight's secondary viz surface alongside Scuba.
Related¶
- systems/strobelight — primary upstream.
- systems/scuba-meta — the analytic-query sibling viz surface.
- companies/meta