From nobody Sat Mar 16 13:24:02 2024
X-Original-To: current@mlmmj.nyi.freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1])
	by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4TxhfP1BlPz5Dq1q;
	Sat, 16 Mar 2024 13:24:13 +0000 (UTC)
	(envelope-from tuexen@freebsd.org)
Received: from drew.franken.de (drew.ipv6.franken.de [IPv6:2001:638:a02:a001:20e:cff:fe4a:feaa])
	(using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))
	(Client CN "*.franken.de", Issuer "Sectigo RSA Domain Validation Secure Server CA" (verified OK))
	by mx1.freebsd.org (Postfix) with ESMTPS id 4TxhfN5X5pz3ynC;
	Sat, 16 Mar 2024 13:24:12 +0000 (UTC)
	(envelope-from tuexen@freebsd.org)
Authentication-Results: mx1.freebsd.org;
	none
Received: from smtpclient.apple (ip4d15f54e.dynamic.kabel-deutschland.de [77.21.245.78])
	(Authenticated sender: micmac)
	by mail-n.franken.de (Postfix) with ESMTPSA id 754D8721E2806;
	Sat, 16 Mar 2024 14:24:03 +0100 (CET)
Content-Type: text/plain;
	charset=us-ascii
List-Id: Discussions about the use of FreeBSD-current <freebsd-current.freebsd.org>
List-Archive: https://lists.freebsd.org/archives/freebsd-current
List-Help: <mailto:freebsd-current+help@freebsd.org>
List-Post: <mailto:freebsd-current@freebsd.org>
List-Subscribe: <mailto:freebsd-current+subscribe@freebsd.org>
List-Unsubscribe: <mailto:freebsd-current+unsubscribe@freebsd.org>
Sender: owner-freebsd-current@freebsd.org
Mime-Version: 1.0 (Mac OS X Mail 16.0 \(3774.500.171.1.1\))
Subject: Re: Request for Testing: TCP RACK
From: tuexen@freebsd.org
In-Reply-To: <CAFDf7U+Bgyw2e1hJySt-4GTX3=qn6LX7B2Ebzcmvr+D6MJqfpg@mail.gmail.com>
Date: Sat, 16 Mar 2024 14:24:02 +0100
Cc: garyj@gmx.de,
 current@freebsd.org,
 net@freebsd.org
Content-Transfer-Encoding: 7bit
Message-Id: <7367F29A-D52B-4828-B79A-AA2667E81E7D@freebsd.org>
References: <42C327BD-6CE4-43AA-A1AE-3BEC08D623DB@freebsd.org>
 <CAFDf7U+U3QpgsG-hY0u3tC_X9WKSRzuAM7Nfhzu-+qPBbs1nng@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>
 <CAFDf7U+Bgyw2e1hJySt-4GTX3=qn6LX7B2Ebzcmvr+D6MJqfpg@mail.gmail.com>
To: Nuno Teixeira <eduardo@freebsd.org>
X-Mailer: Apple Mail (2.3774.500.171.1.1)
X-Spam-Status: No, score=-2.9 required=5.0 tests=ALL_TRUSTED,BAYES_00,
	T_SCC_BODY_TEXT_LINE autolearn=disabled version=3.4.1
X-Spam-Checker-Version: SpamAssassin 3.4.1 (2015-04-28) on mail-n.franken.de
X-Spamd-Bar: ----
X-Rspamd-Pre-Result: action=no action;
	module=replies;
	Message is reply to one we originated
X-Spamd-Result: default: False [-4.00 / 15.00];
	REPLY(-4.00)[];
	ASN(0.00)[asn:680, ipnet:2001:638::/32, country:DE]
X-Rspamd-Queue-Id: 4TxhfN5X5pz3ynC

> On 16. Mar 2024, at 11:59, Nuno Teixeira <eduardo@freebsd.org> wrote:
> 
>>> 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.
If you load tcp_rack via kldload, tcphtps get loaded automatically.
If you load if via /boot/loader.conf, you need to have
tcphpts_load="YES"
in addition to
tcp_rack_load="YES"

Best regards
Michael
> 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)