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Date:      Sat, 16 Mar 2024 10:59:29 +0000
From:      Nuno Teixeira <eduardo@freebsd.org>
To:        garyj@gmx.de
Cc:        tuexen@freebsd.org, current@freebsd.org, net@freebsd.org
Subject:   Re: Request for Testing: TCP RACK
Message-ID:  <CAFDf7U%2BBgyw2e1hJySt-4GTX3=qn6LX7B2Ebzcmvr%2BD6MJqfpg@mail.gmail.com>
In-Reply-To: <20240316115128.33d11f7b@ernst.home>
References:  <42C327BD-6CE4-43AA-A1AE-3BEC08D623DB@freebsd.org> <CAFDf7U%2BU3QpgsG-hY0u3tC_X9WKSRzuAM7Nfhzu-%2BqPBbs1nng@mail.gmail.com> <486915F0-456B-4B09-A8BC-93BBA79C4CA1@freebsd.org> <20240313080624.6c73908c@ernst.home> <508E3B47-8E1B-469F-97B1-2171A3098888@freebsd.org> <86a5n1i0xg.fsf@ltc.des.dev> <AE656D0C-FA5B-4194-8B57-4140CD57ABF1@freebsd.org> <CAFDf7UJRitdHz5QebNH9A4mNo0pKCBRfZCfmFgjNVSdCr_JXrw@mail.gmail.com> <78D1FF09-71A3-4486-B934-D8332F54B237@freebsd.org> <20240316104053.20bef8c2@ernst.home> <CAFDf7UKT=FYsaXRacwsnjDkYUjT4_1QnHynWAc67yxQS8XA0Yw@mail.gmail.com> <20240316115128.33d11f7b@ernst.home>

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> > Resuming I only need to add:
> >
> > options         TCPHPTS
> >
> > Is this correct?
> >
>
> Yeah, that will probably fix it.  According to a comment in
> /usr/src/sys/netinet/tcp_hpts.c it adds a high precision timer
> system for tcp, used by RACK and BBR.

As tuexen said, on main, loader.conf: tcp_rack_load="YES" will load
tcphpts.ko as I am seing in my rpi4 right now.
I'm testing it and check its performance.

I will test again on my amd64 laptop and run more tests too.


-- 
Nuno Teixeira
FreeBSD Committer (ports)



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