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by janice1999 546 days ago
I was surprised to hear the Hotspot isn't fast. I had assumed it would be since it's written in C++.
1 comments
mandarax8 546 days ago
I've never had hotspot not be fast enough. Even on 20Gb traces, everything is instant.

Only thing that ever takes some time is the initial load of the perf file and filtering (bit still really fast).

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laladrik 544 days ago
Unfortunately, I can't find the original perf file I get the flamegraph https://laladrik.xyz/img/pic.svg out of. However, I can create with a similar bunch of data and provide it soon.
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laladrik 543 days ago
Ok, now I remember what was the deal with Hotspot. It makes it possible to work with a flamegraph of mine. However, it takes almost half a minute to load my perf.data. However! I totally recommend Hotspot over my hack in case when you need to have a comprehensive view of the data. In particular, I love to see the off-CPU load, which my FlameGraphViewer doesn't show.
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