RFR: 8333994: NMT: call stacks should show source information

[Zhengyu Gu]

On Fri, 14 Jun 2024 20:59:50 GMT, Gerard Ziemski <gziemski at openjdk.org> wrote:

> There is a following comment in this code that says:
> 
> > ```
> >   // Note: we deliberately omit printing source information here. NativeCallStack::print_on()
> >   // can be called thousands of times as part of NMT detail reporting, and source printing
> >   // can slow down reporting by a factor of 5 or more depending on platform (see JDK-8296931).
> > ```
> 
> but we are in fact looking up and printing more detail here. Is that comment no longer relevant, or is the slow down that goes with this change insignificant?

I have the same question. Did dwarf decoder performance improve? If so, could you point me the PR? Thanks!

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PR Comment: https://git.openjdk.org/jdk/pull/19655#issuecomment-2168770022