On Thu, Nov 29, 2012 at 2:02 PM, Johan Tibell wrote:
> On Thu, Nov 29, 2012 at 2:01 PM, Daniel Fischer
> wrote:
>> On Donnerstag, 29. November 2012, 13:40:42, Johan Tibell wrote:
>>> word2Double :: Word -> Double
>>> word2Double (W# w) = D# (int2Double# (word2Int# w))
>>>
>>> On my (64-bit) machi
On Donnerstag, 29. November 2012, 13:40:42, Johan Tibell wrote:
>
> word2Double :: Word -> Double
> word2Double (W# w) = D# (int2Double# (word2Int# w))
>
> On my (64-bit) machine the Haskell and C versions are on par.
On my box, the Haskell is even faster then, but, as said, the result is
incor
On Thu, Nov 29, 2012 at 2:01 PM, Daniel Fischer
wrote:
> On Donnerstag, 29. November 2012, 13:40:42, Johan Tibell wrote:
>> word2Double :: Word -> Double
>> word2Double (W# w) = D# (int2Double# (word2Int# w))
>>
>> On my (64-bit) machine the Haskell and C versions are on par.
>
> Yes, but the resu
On Donnerstag, 29. November 2012, 13:40:42, Johan Tibell wrote:
> word2Double :: Word -> Double
> word2Double (W# w) = D# (int2Double# (word2Int# w))
>
> On my (64-bit) machine the Haskell and C versions are on par.
Yes, but the result is very different.
_
On Thu, Nov 29, 2012 at 1:40 PM, Johan Tibell wrote:
> This version works around the Word->Double conversion bug and shows
> good performance:
I'd also like to point out that I've removed lots of bang patterns
that weren't needed. This program runs fine without any bang patterns
(but I've kept th
On Thu, Nov 29, 2012 at 1:32 PM, Daniel Fischer
wrote:
> We have an unpleasant regression in comparison to 7.2.* and the 7.4.* were
> slower than 7.6.1 is, but it's all okay here (not that it wouldn't be nice to
> have it faster still).
>
> Are you on a 32-bit system?
This version works around th
On Donnerstag, 29. November 2012, 21:00:36, Fixie Fixie wrote:
> The program seems to take around 6 seconds on my linux-box, while the c
> version goes for 0.06 sekcond.
>
> That is really some regression bug :-)
>
> Anyone with a more recent version thatn 7.4.1?
I don't even have a problem with
That's really an argument for upgrading to 7.4.2 :-)
Another reason for doing things with haskell is this mailing list.
Thanks!
Felix
Fra: Johan Tibell
Til: Fixie Fixie
Kopi: Haskell cafe
Sendt: Torsdag, 29. november 2012 22.06
Emne: Re: [Haskell-cafe] To
The program seems to take around 6 seconds on my linux-box, while the c version
goes for 0.06 sekcond.
That is really some regression bug :-)
Anyone with a more recent version thatn 7.4.1?
Felix
Fra: Johan Tibell
Til: Fixie Fixie
Kopi: Haskell cafe
Sendt
