Oe possible optimization is to not use the #, message  because it  
create a copy of the String.
So you can try:

aFile := CrLfFileStream fileNamed: aFilename.
aLargeCollection do: [ :int |
  aFile nextPutAll: int printString; nextPut: Character cr.
].
aFile close.


On Jan 26, 2008, at 12:37 PM, André Wendt wrote:

> Hi,
>
> I'm looking for a fast way to write a large Collection of ints (over 6
> million elements) to a file. My attempt was:
>
> aFile := CrLfFileStream fileNamed: aFilename.
> aLargeCollection do: [ :int |
>  aFile nextPutAll: int printString, String cr.
> ].
> aFile close.
>
> Unfortunately, this takes more than fifteen minutes. I suspect this is
> due to my implementation.
>
> Is there any smart way I can do this faster?
>
> Thanks,
> André
>

	Mth