On Tue, Apr 20, 2004 at 01:59:33PM +0100, Simon Marlow wrote:
> On 20 April 2004 12:48, Bernard James POPE wrote:
>
> > Results:
> >
> >method runtime (s)
> >---
> >pure0.7
> >ffi 3.2
> >fastMut 15
> >ioref
On Tue, Apr 20, 2004 at 02:56:36PM +0200, Ketil Malde wrote:
> Bernard James POPE <[EMAIL PROTECTED]> writes:
>
> > Note each program was compiled with ghc 6.2 with -O2 on debian linux.
> :
> > main = print $ loop 1 0
>
> Isn't this going to be optimized away to a constant w
Hi Andre,
> There's another way which you missed: using implicit parameters. I
> remember reading a paper a while ago called Global Variables in Haskell
> (sorry, don't remember the author -- Jones, perhaps?) which did similar
> benchmarking to yours, and carrying around the global variable wi
On 20/04/2004, at 9:48 PM, Bernard James POPE wrote:
To test out the various possible ways of implementing a global counter
I wrote some test cases (shown below). I hope the test cases are
useful, and provide some indication of the relative performance.
However, if you spot something bogus please
On 20 April 2004 12:48, Bernard James POPE wrote:
> Results:
>
>method runtime (s)
>---
>pure0.7
>ffi 3.2
>fastMut 15
>ioref 23
I very strongly suspect that it is the unsafePerformIO that hurts
per
Bernard James POPE <[EMAIL PROTECTED]> writes:
> Note each program was compiled with ghc 6.2 with -O2 on debian linux.
:
> main = print $ loop 1 0
Isn't this going to be optimized away to a constant with -O2?
-kzm
--
If I haven't seen further, it is by standing in the foot
On Thu, Apr 15, 2004 at 10:43:22AM -0700, Carl Witty wrote:
> > > However, if you have any suggestions about how to make a FAST
> > > global counter
> > > I would be very glad to hear it. From profiling it seems like
> > > this code
> > > is a little expensive (also it is called quite frequently)
On 16 April 2004 10:39, Stefan Reich wrote:
> I'm using GHC 6.2.1 on Windows 2000.
>
> Problem 1: -hr crashes in some circumstances.
>
> Take this program (Test.hs):
>
> module Main where
> import IO
> main = do
> readFile "large.csv"
> putStrLn "OK"
>
> where large.csv is an 800
On 17 April 2004 10:15, Sven Panne wrote:
> Stefan Reich wrote:
>> Problem 1: -hr crashes in some circumstances. [...]
>
> No idea about this one...
>
>> Problem 2: hp2ps doesn't work at all. [...]
>
> That's a little bit harsh. :-) First of all it's not hp2ps, but GHC's
> RTS which has a bugle
On 20 April 2004 01:40, Donald Bruce Stewart <> wrote:
> It is sometimes very slightly annoying that misspelling a pragma will
> mean that it is silently ignored. Oh well. I've typed:
>
> {-# OPITONS -fglasgow-exts #-}
> or
> {- # OPTIONS -fglasgow-exts #-}
>
> many times. I usua
You can ask to dump the syntax tree of the program after type checking.
This includes the type abstractions and applications inserted by the
type checker. -ddump-tc
But that's all. I'm not sure what the "search tree" is, but GHC
certainly doesn't maintain one, nor does it print out one, I'm afr
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