Re: [Chicken-users] Speeding up bit-vector operation (using iset)

[felix winkelmann]

On Thu, Mar 18, 2010 at 10:35 AM, Alex Shinn <address@hidden> wrote:
>
> I've modified iset so that it will generate tight loops on
> the bit-vector arithmetic operations, and it runs the
> original example in just over a second on my machine.  You
> might be able to make this faster by using u32/u64 vectors
> (storing only fixnum-sized values), but you'd get the
> biggest gain from rewriting the operations directly in C and
> vectorizing them.

Well done. The (safe) u8vector primitives are really slow in the moment,
but it's no big deal to speed them up, which I will do in due time.


cheers,
felix