RE: GHC hang

2005-06-07 Thread Simon Peyton-Jones
There is definitely a performance bug somewhere in GHC, and we're
collecting cases that show it up.  It'd be ideal if you, or someone
else, could snip out a standalone module or two that demonstrates the
problem, rather than all of WASH.  If not, we'll try to tackle it
directly.

Simon

| -Original Message-
| From: [EMAIL PROTECTED]
[mailto:glasgow-haskell-users-
| [EMAIL PROTECTED] On Behalf Of John Goerzen
| Sent: 06 June 2005 21:21
| To: glasgow-haskell-users@haskell.org
| Subject: Re: GHC hang
| 
| On 2005-06-06, Simon Peyton-Jones [EMAIL PROTECTED] wrote:
|  Lots of people seem to have had problems compiling Wash with GHC
6.4.
| 
| Another person told me, perhaps in private, that it just takes GHC 15
| minutes to compile the specific file in question on amd64.  It turns
out
| that there is not a hang bug with this.
| 
| There were various other bugs with Wash, and I think I have got it to
at
| least a buildable state.  See my announcement on that topic in this
list
| for more.
| 
| -- John
| 
| ___
| Glasgow-haskell-users mailing list
| Glasgow-haskell-users@haskell.org
| http://www.haskell.org/mailman/listinfo/glasgow-haskell-users
___
Glasgow-haskell-users mailing list
Glasgow-haskell-users@haskell.org
http://www.haskell.org/mailman/listinfo/glasgow-haskell-users


RE: GHC hang

2005-06-07 Thread Duncan Coutts
On Tue, 2005-06-07 at 10:52 +0100, Simon Peyton-Jones wrote:
 There is definitely a performance bug somewhere in GHC, and we're
 collecting cases that show it up.  It'd be ideal if you, or someone
 else, could snip out a standalone module or two that demonstrates the
 problem, rather than all of WASH.  If not, we'll try to tackle it
 directly.

I've got a happy grammar that takes ghc many minutes and hundreds of Mb
to typecheck if I leave off the types for all the productions.

If I add types for all the productions it's pretty quick and uses very
little memory.

But I think this is a known issue (it's mentioned in the happy manual)
and not the one you were interested in. Am I right?

I was just suprised that it is such a dramatic effect!

Duncan

___
Glasgow-haskell-users mailing list
Glasgow-haskell-users@haskell.org
http://www.haskell.org/mailman/listinfo/glasgow-haskell-users


Re: GHC hang

2005-06-06 Thread Robert van Herk

John Goerzen wrote:


On 2005-06-06, Simon Peyton-Jones [EMAIL PROTECTED] wrote:
 


Lots of people seem to have had problems compiling Wash with GHC 6.4.
   



Another person told me, perhaps in private, that it just takes GHC 15
minutes to compile the specific file in question on amd64.  It turns out
that there is not a hang bug with this.

There were various other bugs with Wash, and I think I have got it to at
least a buildable state.  See my announcement on that topic in this list
for more.
 


Yep I told you that. However, I sent a cc to the wrong mailing list :-).

But indeed it takes a long lng time, but it compiles.

Robert
___
Glasgow-haskell-users mailing list
Glasgow-haskell-users@haskell.org
http://www.haskell.org/mailman/listinfo/glasgow-haskell-users