RE: [Haskell-cafe] what is a stack overflow?
On 25 January 2005 16:04, S. Alexander Jacobson wrote:
Ok. I guessed I was producing a big expression of the form
addToFM (addToFM (addToFM (addToFM (addToFM ...)
I tried to solve it by doing
(addToFM $! fm) key val
But still got an error. I then tried the same with the wrapper code, but still got the error.
Is there a way to profile stack usage using GHCi (without compiling) to find the problem?
+RTS -xt -RTS will include the stack in a heap profile. See http://www.haskell.org/ghc/docs/latest/html/users_guide/prof-heap.html It will show you the size of the stack over time, but not the contents of the stack. Cheers, Simon
On Wed, Jan 26, 2005 at 01:04:29PM -0000, Simon Marlow wrote:
On 25 January 2005 16:04, S. Alexander Jacobson wrote:
Is there a way to profile stack usage using GHCi (without compiling) to find the problem?
+RTS -xt -RTS will include the stack in a heap profile. See
http://www.haskell.org/ghc/docs/latest/html/users_guide/prof-heap.html
It will show you the size of the stack over time, but not the contents of the stack.
BTW, has anyone considered making a stackless Haskell implementation? For example, SML compiler SML/NJ allocates "stack" frames on the heap. Best regards, Tomasz
participants (2)
-
Simon Marlow -
Tomasz Zielonka