RE: Beginners profiling question
So I have tried profiling the first time...
using ghc-4.08.1 with options -prof -auto-all runtime option -px ghcprof and daVinci work like a charm
what I see is
main uses 99.90 % time and space sat for practical purposes is the only function called from main and uses ca. 12 % time and space
what am I doing wrong... Prelude not compiled for profiling?
I'm not sure what you're expecting to see - the profile looks reasonable to me. Why do you think it's wrong? Ah, perhaps you're worried that the percentages don't add up to 100%: that's because they're "inherited", i.e. sat's costs form part of the total costs of main, because main called sat. The daVinci browser has a button to turn off inherited stats, as I recall. BTW, we're working on a new profile viewer. Here is a screenshot showing your profile: http://research.microsoft.com/~simonmar/pview.jpg the user interface is little rough at the moment, but you can see the general idea. Cheers, Simon
On 11-Dec-00 Simon Marlow wrote:
So I have tried profiling the first time...
using ghc-4.08.1 with options -prof -auto-all runtime option -px ghcprof and daVinci work like a charm
what I see is
main uses 99.90 % time and space sat for practical purposes is the only function called from main and uses ca. 12 % time and space
what am I doing wrong... Prelude not compiled for profiling?
I'm not sure what you're expecting to see - the profile looks reasonable to me. Why do you think it's wrong?
Ah, perhaps you're worried that the percentages don't add up to 100%: that's because they're "inherited", i.e. sat's costs form part of the total costs of main, because main called sat. The daVinci browser has a button to turn off inherited stats, as I recall.
Your picture shows that sat uses 12% of the time, and main uses 99% which is fine because it inherites all time usage. But main really only calls sat, like so: main = do ~[rnastr] <- getArgs print (sat (str2inp rnastr (0::Int))) str2inp is just a small data conversion routines for sat. So where does all the time go?
BTW, we're working on a new profile viewer. Here is a screenshot showing your profile:
http://research.microsoft.com/~simonmar/pview.jpg
the user interface is little rough at the moment, but you can see the general idea.
This looks nice!
Cheers, Simon
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I will set up a complete example as Simon Peyton-Jones suggested. Thanks again Dirk --- +---------------------------------------------------------------------+ | Dirk Evers Office: M3-120 | | Technische Fakultaet / AG PI Tel: +49 521 106-2905 | | Universitaet Bielefeld FAX: +49 521 106-6411 | | D-33594 Bielefeld e-mail: dirk@TechFak.Uni-Bielefeld.DE | | Germany URL: http://www.TechFak.Uni-Bielefeld.DE/~dirk/ | |---------------------------------------------------------------------| | Die Succulenten / a cappella singing / http://www.succulenten.de | +---------------------------------------------------------------------+
participants (2)
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Dirk Evers -
Simon Marlow