[fpc-pascal] Why is cthreads unit not included by default

[Jonas Maebe]

On 27 Aug 2009, at 19:08, Mattias Gaertner wrote:

> On Thu, 27 Aug 2009 18:57:58 +0200
> Jonas Maebe <jonas.maebe at elis.ugent.be> wrote:
>
>> Oh, now I see that the procedure was put below :) That it's quicker
>> with cmem is reasonably logical: FPC's heap manager is not very good
>> at reallocating memory.
>
> What reallocating memory do you mean?
>
>  s1:=IntToStr(Paramcount+12345);
>  s2:=IntToStr(Paramcount+23456);
>  for i:=1 to 500000000 do begin
>    s:=s1;
>    s:=s2;
>  end;
>
> I only change reference counters, don't I?

You're right.

>> I didn't see any timings for the command line app in your post
>> though.
>
> That was in the very first post of this thread:

Maybe on another mailing list? Not here anyway.

> Under my Linux machine the above program takes about 7.5 seconds.
> Uncomment the cthreads unit: 7.5 seconds
>
> Under OS X the above program takes on my mac book about 15 seconds.
> Uncomment the cthreads unit: 21 seconds

On my MacBook it's 12 seconds with or without cthreads (12.1 with  
2.5.1, 12.8 with 2.2.4).


Jonas