George V. Reilly

Flame Graphs and Flame Charts

Flame Graph

I was in­ves­ti­gat­ing the per­for­mance of a web app today, and I spent some time looking at the Flame Chart vi­su­al­iza­tion in Chrome’s profiling tools, which helped identify some problems.

Flame Charts are like Brendan Gregg’s Flame Graphs, except that the charts are sorted by time, while the graphs are sorted al­pha­bet­i­cal­ly.

Quoting from Gregg’s recent ACM Queue article:

A flame graph has the following char­ac­ter­is­tics:

Flame graphs are a clever, in­for­ma­tion-dense way to present computer per­for­mance. I suspect Edward Tufte would approve.

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