[Haskell-cafe] Parallel Profiling

[Amos Robinson]

Hi Dominic,

A few years ago we wrote a program for analysing DPH runs, dph-event-seer.
It provides a few general analyses like percent of time with N threads
running, time between wake-ups etc. You might find it interesting, but I
haven't actually looked at ghc-events-analyse, so I don't know what it
provides.

I'm sorry, but to compile it without DPH you'd have to modify it to remove
DphOps*.

https://github.com/ghc/packages-dph/blob/master/dph-event-seer/src/Main.hs

Amos

On Tue, 31 Mar 2015 at 04:38 Dominic Steinitz <dominic at steinitz.org> wrote:

> Does anyone know of any tools for analysing parallel program performance?
>
> I am trying to use threadscope but it keeps crashing with my 100M log file
> and ghc-events-analyze is not going to help as I have many hundreds of
> threads all carrying out the same computation. I think I’d like a library
> that would allow me to construct my own analyses rather than display them
> via GTK. There is ghc-events but that seems to be just for parsing the logs
> and I couldn’t find anything that used it in the way I would like to (apart
> from threadscope and ghc-events-analyze of course).
>
> Thanks
>
> Dominic Steinitz
> dominic at steinitz.org
> http://idontgetoutmuch.wordpress.com
>
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