On Nov 10, 2012, at 12:30 PM, Neil Toronto wrote: > On 11/10/2012 08:22 AM, John Clements wrote: >> (: comb1 (Float -> Float)) >> (define (comb1 in) >> (define delayed1 (flvector-ref v1 c1)) >> (define midnode1 (fl+ delayed1 (fl* g11 m1))) >> (define out1 (fl+ (fl* g21 midnode1) in)) >> (flvector-set! v1 c1 out1) >> (define next-c1 (add1 c1)) >> (set! c1 (cond [(<= d1 next-c1) 0] >> [else next-c1])) >> (set! m1 midnode1) >> out1) >> >> I can't see anything in this that would cause allocation. > > I'll bet `set!' does it. Also, if `comb1' doesn't get inlined at its > application sites, I think `in' and `out1' will get boxed.
I thought that might be the problem, and changed my set!'s into flvector-set!s, but didn't observe any change. John
smime.p7s
Description: S/MIME cryptographic signature
____________________ Racket Users list: http://lists.racket-lang.org/users
