Re: [Sbcl-devel] slow REPLACE on octet sequences

[Nathan F. <fr...@cs...>]

On Fri, Mar 18, 2005 at 03:47:23PM -0500, Zach Beane wrote:
> REPLACE is very slow even when the sequences are both declared as
> (unsigned-byte 8) vectors. Apparently, it's slow on everything except
> strings. It would be nice if REPLACE was really fast on (unsigned-byte
> 8) vectors.

Performance of this scenario should be much improved under SBCL
0.8.21.5; quick benchmarks showed that the new optimized REPLACE is
nearly an order of magnitude faster than the standard REPLACE on
(unsigned-byte 8) vectors.  (Of course, you need to declare your
array types for this optimization to kick in.)
-- 
Nathan | From Man's effeminate slackness it begins.  --Paradise Lost