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2b9f7ffe1b
Instruments has a complex binary file format. If we're interested in just having a nice flamegraph display of the contents and don't care too much about time ordering or symbol file locations, then we can just grab the information we need from the clipboard rather than deal with the binary file format. This also avoids needing to deal with multiple processes or multiple threads. This PR contains 2 compressed `.trace` files. In each, if you select the top row in the call tree view and hit "Cmd+Shift+C" or go to "Edit -> Deep Copy", then paste into speedscope, you should get the corresponding flamechart. ## Allocations Profile   ## Time Profile   |
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|---|---|---|
| .. | ||
| bg-flamegraph.ts | ||
| chrome.ts | ||
| firefox.ts | ||
| instruments.ts | ||
| stackprof.ts | ||
