[Ecls-list] Slow bignums

Juan Jose Garcia-Ripoll juanjose.garciaripoll at googlemail.com
Thu Jan 28 07:12:53 UTC 2010

On Thu, Jan 28, 2010 at 1:09 AM, Waldek Hebisch <hebisch at math.uni.wroc.pl>wrote:

> If ECL's consing numbers have anything common with reality, then
> ECL is consing too much.  AFAIK sbcl bignum routines takes a lot
> of effort to allocate temporaries on stack, so only final results
> of arithmetic operations are allocated on the heap.

I think you are attributing too much cleverness to SBCL. A simple
disassembly of the code shows that SBCL is all the time calling GENERIC-*
and GENERIC-+ that allocate data in the ordinary heap.


Instituto de Física Fundamental, CSIC
c/ Serrano, 113b, Madrid 28006 (Spain)
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