Re: Request for Testing: TCP RACK

Hello Gary,

Nice that you found this.

tcp_tack manual doesn't mention that we need extra config in kernel
but it loads module and it is shown in sysctl
net.inet.tcp.functions_available without errors.

I will add missing config to GENERIC and see how it goes.

Cheers,


Gary Jennejohn <garyj@gmx.de> escreveu (sábado, 16/03/2024 à(s) 09:40):
>
> On Sat, 16 Mar 2024 09:41:13 +0100
> tuexen@freebsd.org wrote:
>
> > > On 16. Mar 2024, at 08:57, Nuno Teixeira <eduardo@freebsd.org> wrote:
> > >
> > > Hello all,
> > >
> > > On a laptop i7/16MB ram, desktop use and port testing (poudriere) I've
> > > noticed that all operations on OS was increased by 3 to 5 times
> > > longer.
> > > examples:
> > > - firefox took way long time to open
> > > - poudriere testport tooked up to 3 times longer to finished
> >
> > make.conf:
> > KERNCONF=GENERIC-NODEBUG
> > src.conf:
> > WITH_MALLOC_PRODUCTION=yes
> >
> > tested on main-n268800-6a6ec90681cf
> >
>
> > How did you enable the RACK stack? Does the poudriere involve
> > network interaction?
> >
>
> Interesting.  RACK works for me:
>
> net.inet.tcp.functions_available:
> Stack                           D Alias                            PCB count
> freebsd                           freebsd                          0
> rack                            * rack                             23
>
> I don't see any lags when starting/using FireFox or any other browser.
>
> Mail delivery (in/out) is also not affected.
>
> But GENERIC, which is loaded by GENERIC-NODEBUG, doesn't support RACK.
>
> These entries are missing in GENERIC:
>
> makeoptions     WITH_EXTRA_TCP_STACKS=1
> options         TCPHPTS
> options         TCP_RACK
>
> --
> Gary Jennejohn



-- 
Nuno Teixeira
FreeBSD Committer (ports)