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
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
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
