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flamegraph-rs / flamegraph

Easy flamegraphs for Rust projects and everything else, without Perl or pipes <3
Apache License 2.0
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Name mangling in output #283

Closed blp closed 1 year ago

blp commented 1 year ago

When I run cargo flamegraph, I see mangled names in the output. I see that there are mangled names in the sample flamegraph at https://github.com/flamegraph-rs/flamegraph, too. Mangled names are hard to read.

To get them demangled, I had to put the following script as addr2line early in my path:

#! /bin/sh
/usr/bin/addr2line "$@" | rustfilt

I'm surprised that this isn't something that anyone has noticed or filed or fixed before? I do wonder if I'm missing something.

Thanks,

Ben.

djc commented 1 year ago

There seems to be a recent regression in perf going around -- are you on Fedora? Have a look at #280.

blp commented 1 year ago

There seems to be a recent regression in perf going around -- are you on Fedora? Have a look at #280.

Oh, yeah, this duplicates #280. I looked but couldn't find a dup before I filed, sorry about the noise.

I am also on Fedora.