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Netflix / flamescope

FlameScope is a visualization tool for exploring different time ranges as Flame Graphs.
Apache License 2.0
3.02k stars 168 forks source link

support node.stack in nflxprofile format #107

Open igorwwwwwwwwwwwwwwwwwwww opened 4 years ago

igorwwwwwwwwwwwwwwwwwwww commented 4 years ago

This patch adds support for node.stack in nflxprofile.

The nflxprofile format supports attaching a list of stack frames to a node. As far as I can tell, this is currently ignored by flamescope, which expects one node per stack frame.

This patch will use the node.stack if present, and otherwise fall back to the node-level value.

A sample profile is attached (needs to be gunzipped to work).

test.nflxprofile.gz

igorwwwwwwwwwwwwwwwwwwww commented 4 years ago

I wasn't quite sure what the intended ordering of frames in node.stack is. These may potentially need to be reversed.