On 05/01/18 at 05:11P, Warner Losh wrote: > On Tue, May 1, 2018 at 5:00 PM, Jonathan Looney <jonloo...@gmail.com> wrote: > > > On Mon, Apr 30, 2018 at 3:16 AM, hiren panchasara < > > hi...@strugglingcoder.info> wrote: > > > > > > In my understanding, default stack currently cannot use this mechanism. > > When do > > > you think that'll be possible? > > > > > > I think I can speak to Randall's plans for this.
Thank you! > > > > Randall chose not to include in this commit the hooks for the default > > stack to use the high-precision timers. I believe his immediate priorities > > are upstreaming RACK and BBR. After that, if there is demand, he may > > upstream the (relatively untested) code that allows the default stack to > > use the high-precision timers (protected by a non-default kernel option) so > > others can choose to experiment with it. I believe it'd be useful to be able to pace packets with the traditional stack. > > > > (By the way, we're hoping to change the terminology away from describing > > the traditional FreeBSD stack as the "default" stack. In theory, someone > > can make any stack be their local default. We'll need to figure out what to > > actually call it at some point. My suggestion was the "FreeBSD" stack, > > although that is lacking in some imagination. In any case, we should have > > that discussion at some point in the future. > > > > Only slightly less poor would be "traditional" stack :) See, I've already started using this name. :-) Cheers, Hiren
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