[Haskell-cafe] ThreadScope: Request for features for the performance tuning of parallel and concurrent Haskell programs

Don Stewart dons at galois.com
Thu Mar 12 14:00:28 EDT 2009

> Don Stewart wrote:
> > marlowsd:
> >> Ben Lippmeier wrote:
> >>
> >>> On 12/03/2009, at 12:24 AM, Satnam Singh wrote:
> >>>> Before making the release I thought it would be an idea to ask people 
> >>>> what other features people would find useful or performance tuning. 
> >>>> So if you have any suggestions please do let us know!
> >>>>
> >>> Is it available in a branch somewhere to try out?
> >> There are three parts to it:
> >>
> >>  - some patches to GHC to generate the log files.  The patches are
> >>    not yet in, but I hope to get them in in the next couple of weeks.
> > 
> > Just as a meta-point, it makes a *lot* of sense for the runtime to
> > support proper logging -- it's practically a microkernel after all, so
> > logging makes as much sense for GHC's rts as it does for regular
> > kernels.
> > 
> > Now we just need a /proc for the rts, so I can peek at GC stats live.
> Seeing this thread and discussion direction I cannot resist to
> temptation to ask: is anybody going to write rts DTrace[1] provider?

I think this is clear next step in the investigations.

-- Don

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