How's the integration of DWARF support coming along?

[Ömer Sinan Ağacan]

Is this stack trace support different than what we have currently?
(e.g. the one implemented with GHC.Stack and cost centers)

---
Ömer Sinan Ağacan
http://osa1.net


2014-08-13 18:02 GMT+03:00 Johan Tibell <johan.tibell at gmail.com>:
> Hi,
>
> How's the integration of DWARF support coming along? It's probably one of
> the most important improvements to the runtime in quite some time since
> unlocks *two* important features, namely
>
>  * trustworthy profiling (using e.g. Linux perf events and other
> low-overhead, code preserving, sampling profilers), and
>  * stack traces.
>
> The former is really important to move our core libraries performance up a
> notch. Right now -prof is too invasive for it to be useful when evaluating
> the hotspots in these libraries (which are already often heavily tuned).
>
> The latter one is really important for real life Haskell on the server,
> where you can sometimes can get some crash that only happens once a day
> under very specific conditions. Knowing where the crash happens is then
> *very* useful.
>
> -- Johan
>
>
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