On Wed, Jul 17, 2013 at 1:27 PM, Jer Noble <jer.noble@apple.com> wrote: > On Jul 16, 2013, at 1:18 PM, K. Gadd <kg@luminance.org> wrote: > > This claim has been made dozens of times now on the list and I've seen > multiple requests for even a single test case that demonstrates the > performance impact. Is there one? I haven't seen one, nor a comment to the > effect that one exists, or an explanation of why there isn't one. > > > Isn't this self-evident? Any solution which involves additional memcopy > calls during the normal use of the API will have an inherant and known > performance cost at the point of the memcopy. > It's self-evident that there is some cost. It's not as self-evident that this cost is "unacceptable" or "very very important". Some examples would let us compare the costs of various proposals, and then we can have an informed discussion about what's acceptable. Rob -- Jtehsauts tshaei dS,o n" Wohfy Mdaon yhoaus eanuttehrotraiitny eovni le atrhtohu gthot sf oirng iyvoeu rs ihnesa.r"t sS?o Whhei csha iids teoa stiheer :p atroa lsyazye,d 'mYaonu,r "sGients uapr,e tfaokreg iyvoeunr, 'm aotr atnod sgaoy ,h o'mGee.t" uTph eann dt hwea lmka'n? gBoutt uIp waanndt wyeonut thoo mken.o w * *
Received on Wednesday, 17 July 2013 01:44:01 UTC