On Mon, 12 Mar 2018 15:04:06 -0400 (EDT) David Miller <da...@davemloft.net> wrote:
> From: Stephen Hemminger <step...@networkplumber.org> > Date: Mon, 12 Mar 2018 11:45:52 -0700 > > > Since indirect calls are expensive, and now even more so, perhaps we should > > figure out > > a way to make the default TCP congestion control hooks into direct calls. > > 99% of the users just use the single CC module compiled into the kernel. > > Who is this magic user with only one CC algorithm enabled in their > kernel? I want to know who this dude is? > > I don't think it's going to help much since people will have I think > at least two algorithms compiled into nearly everyone's tree. > > Distributions will enable everything. > > Google is going to have at least two algorithms enabled. > > etc. etc. etc. > > Getting rid of indirect calls is a fine goal, but the precondition you > are mentioning to achieve this doesn't seem practical at all. What I meant is that kernels with N congestion controls, almost all traffic uses the default So that path can be optimized. The example I gave would have all the others doing the same indirect call.
