On Fri, Mar 9, 2018 at 8:38 PM, Waldek Hebisch <hebi...@math.uni.wroc.pl> wrote: >> >> Waldek, your changes to fix this problem (SVN r2373 or git 6404dd01) >> has made SBCL-1.4.5 to use 'make-array' instead of >> 'sbcl_make_sized_vector', is that your intention? > > Yes. We use 'sbcl_make_sized_vector' because it was much faster. > But with new sbcl the claim is that 'make-array' is much > faster than it was. >
For small vector, 'sbcl_make_sized_vector' is faster than 'make-array' in sbcl 1.4.5, it's 20% for vector with 10 elements. It is a bug to have "`(ceiling (* ,n ,n-bits) sb-vm:n-word-bits)" in 'sbcl_make_sized_vector', we should fix it to "`(ceiling (* ,n ,nb) sb-vm:n-word-bits)". Also I think it is better to use ALLOCATE-VECTOR-WITH-WIDETAG than ALLOCATE-VECTOR. -- You received this message because you are subscribed to the Google Groups "FriCAS - computer algebra system" group. To unsubscribe from this group and stop receiving emails from it, send an email to fricas-devel+unsubscr...@googlegroups.com. To post to this group, send email to fricas-devel@googlegroups.com. Visit this group at https://groups.google.com/group/fricas-devel. For more options, visit https://groups.google.com/d/optout.
