Re: [Haskell-cafe] Parallel Profiling

Hi Amos, Thanks very much - I am taking a look. Dominic Steinitz dominic@steinitz.org http://idontgetoutmuch.wordpress.com On 30 Mar 2015, at 22:05, Amos Robinson wrote:

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 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@steinitz.org http://idontgetoutmuch.wordpress.com

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