RE: Profiling question
On 12 September 2005 22:59, J. Garrett Morris wrote: > (apologies for the previous attempt at this message) > > I'm attempting to profile a project spread over four or five modules, > each compiled using cabal with the --enable-library-profiling and > --enable-executable-profiling switches. The resulting profiles > include all function calls for several of the modules, but one of the > others is mysteriously never mentioned, despite definitely having been > called. Is there some reason module (compiled with profiling) would > be excluded from the final report? Not that I can think of, unless for some reason that module didn't get compiled with -auto-all? Cheers, Simon ___ Glasgow-haskell-users mailing list Glasgow-haskell-users@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-users
RE: profiling question
> I think this question was asked by someone else as part of another > thread back in January, but I couldn't find an answer on the list > archive. What do the zeros for "entries" mean in a time profiling > report? If I want to know why "getAppropriatePreds" takes up so much > time (14.7%) in my code, does the zero mean an overflowed > count or that > the cost centre has never been entered? I'm using 5.04.2 on Linux, and > my program is compiled with -O -prof -auto-all. > > compose InfrequentCheck 113712280580 2.12.5 > 2.12.5 > alignInfrequentCheck 1127 0 3.7 > 6.2 8.3 > 6.7 > align2 InfrequentCheck 1139 8577943 0.40.0 > 0.40.0 > lookupModeArgs InfrequentCheck 113686747940 4.20.4 > 4.20.4 > getAppropriatePreds InfrequentCheck 11260 14.76.6 > 14.76.6 I think the best answer to give here is that the entries count is not at all reliable. Please feel free to file a bug, we'll get around to it next time I have the profiling system paged in ;-) Cheers, SImon ___ Glasgow-haskell-users mailing list [EMAIL PROTECTED] http://www.haskell.org/mailman/listinfo/glasgow-haskell-users
Re: Profiling question
Ah, I'd definatly like to request it for GHC. as well as a version in the IO monad, I have wanted both on various occasions. John On Mon, Jan 06, 2003 at 12:55:35PM +, Malcolm Wallace wrote: > Kirsten Chevalier <[EMAIL PROTECTED]> writes: > > > I'd like to be able to determine the percentage of allocated objects of > > a particular type at specific points in a program's execution. I know > > that I can use heap profiling to create a graph of memory usage broken > > down by type, but is there any way to record this information at > > particular points in the program (i.e., between two statements in a > > do-expression)? > > If you were using nhc98, then you could use the following: > > import NonStdProfile > > f ... = do ... >profile "point A" actionA >profile "point B" actionB > > The non-standard operation > profile :: String -> a -> a > places a labelled marker line on the profile graph at the time instant > when the value is demanded. > > I don't know whether ghc has anything similar? > > Regards, > Malcolm > ___ > Glasgow-haskell-users mailing list > [EMAIL PROTECTED] > http://www.haskell.org/mailman/listinfo/glasgow-haskell-users > -- --- John Meacham - California Institute of Technology, Alum. - [EMAIL PROTECTED] --- ___ Glasgow-haskell-users mailing list [EMAIL PROTECTED] http://www.haskell.org/mailman/listinfo/glasgow-haskell-users
RE: Profiling question
> If you were using nhc98, then you could use the following: > > import NonStdProfile > > f ... = do ... >profile "point A" actionA >profile "point B" actionB > > The non-standard operation > profile :: String -> a -> a > places a labelled marker line on the profile graph at the time instant > when the value is demanded. > > I don't know whether ghc has anything similar? No, but that strikes me as rather a good idea. I'll have a go at implementing it. Cheers, Simon ___ Glasgow-haskell-users mailing list [EMAIL PROTECTED] http://www.haskell.org/mailman/listinfo/glasgow-haskell-users
Re: Profiling question
Kirsten Chevalier <[EMAIL PROTECTED]> writes: > I'd like to be able to determine the percentage of allocated objects of > a particular type at specific points in a program's execution. I know > that I can use heap profiling to create a graph of memory usage broken > down by type, but is there any way to record this information at > particular points in the program (i.e., between two statements in a > do-expression)? If you were using nhc98, then you could use the following: import NonStdProfile f ... = do ... profile "point A" actionA profile "point B" actionB The non-standard operation profile :: String -> a -> a places a labelled marker line on the profile graph at the time instant when the value is demanded. I don't know whether ghc has anything similar? Regards, Malcolm ___ Glasgow-haskell-users mailing list [EMAIL PROTECTED] http://www.haskell.org/mailman/listinfo/glasgow-haskell-users
RE: Profiling question
Not currently. It's not clear what a "point" in execution *is*! The top-level IO monad thread might provide such a point, but even then it might not be clear how much of a lazy data structure had been evaluated by that "point". I could see sense in having an I/O operation markProfile :: String -> IO () which would put a labelled vertical line on the profile to say when that "point" was. Simon | -Original Message- | From: Kirsten Chevalier [mailto:[EMAIL PROTECTED]] | Sent: 03 January 2003 19:30 | To: [EMAIL PROTECTED] | Subject: Profiling question | | Hi, | I'd like to be able to determine the percentage of allocated objects of a | particular type at specific points in a program's execution. I know that I | can use heap profiling to create a graph of memory usage broken down by type, | but is there any way to record this information at particular points in the | program (i.e., between two statements in a do-expression)? | | Thanks, | Kirsten | | -- | Kirsten Chevalier * [EMAIL PROTECTED] * Often in error, never in doubt | ___ | Glasgow-haskell-users mailing list | [EMAIL PROTECTED] | http://www.haskell.org/mailman/listinfo/glasgow-haskell-users ___ Glasgow-haskell-users mailing list [EMAIL PROTECTED] http://www.haskell.org/mailman/listinfo/glasgow-haskell-users
