On 30/11/2015 04:24, Fam Zheng wrote:
> > +for (i = 0; i < out_num; i++) {
> > +elem->out_addr[i] = addr[i];
> > +elem->out_sg[i] = iov[i];
> > +}
>
> Isn't memcpy more efficient here? Otherwise looks good.
Probably not, out_num/in_num is usually very small, in fact one o
On Tue, 11/24 19:00, Paolo Bonzini wrote:
> Build the addresses and s/g lists on the stack, and then copy them
> to a VirtQueueElement that is just as big as required to contain this
> particular s/g list. The cost of the copy is minimal compared to that
> of a large malloc.
>
> When virtqueue_ma
