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Date:      Mon, 01 Jul 2002 22:58:07 +0200
From:      Poul-Henning Kamp <phk@critter.freebsd.dk>
To:        Doug Barton <DougB@FreeBSD.ORG>
Cc:        freebsd-hackers@FreeBSD.ORG, net@FreeBSD.ORG
Subject:   Re: ftp and mail much slower into fbsd 4.4 vs and old BSDi 
Message-ID:  <55379.1025557087@critter.freebsd.dk>
In-Reply-To: Your message of "Mon, 01 Jul 2002 13:50:07 PDT." <20020701134833.E24940-100000@zoot.corp.yahoo.com> 

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In message <20020701134833.E24940-100000@zoot.corp.yahoo.com>, Doug Barton writ
es:
>On Mon, 1 Jul 2002, Terry Lambert wrote:
>
>> Mike Silbersack wrote:
>> > On Mon, 1 Jul 2002, Doug Barton wrote:
>> > > The problem is that Terry has described the theory, whereas many of us
>> > > who have observed the situation in the real world have noticed that even
>> > > on a homogenous network (all with newreno enabled) performance is still
>> > > worse than with newreno disabled.
>>
>> I guess you missed the part where I said that FreeBSD had bugs, and
>> Matt Dillon posted patches?
>
>Nope. I think you missed the part where I said I was talking about
>reality, not theory. :)  The reality is, it's broken now, and in my
>experience, turning it off makes the system "work better."

Yes, I can attest to this an I belive it is actually the case on both
-current and -releng4 that disabling newreno improves TCP performance.

I belive running an X11 application or scp(1) over a wavelan is a very
good test-bed for this issue.

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk@FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.

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