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Date:      Thu, 26 Oct 2000 08:11:29 +0200
From:      Poul-Henning Kamp <phk@critter.freebsd.dk>
To:        John Hay <jhay@icomtek.csir.co.za>
Cc:        jwd@FreeBSD.ORG (John W. De Boskey), freebsd-current@FreeBSD.ORG
Subject:   Re: ftp vs. nfs install times 
Message-ID:  <35311.972540689@critter>
In-Reply-To: Your message of "Sat, 26 Oct 2000 08:00:44 %2B0200." <200010260600.e9Q60jZ52484@zibbi.icomtek.csir.co.za> 

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In message <200010260600.e9Q60jZ52484@zibbi.icomtek.csir.co.za>, John Hay write
s:
>> 
>>    I've tested last nights make release built
>> install via both ftp and nfs and am seeing
>> some rather strange results timeing wise:
>> 
>>    A full install (ie: select ALL) w/ ports.
>> 
>>    NFS:  about 18 minutes. (ave. about 1000KB/sec)
>> 
>>    FTP:  about 70 minutes. (ave. about 45KB/sec)
>> 
>
>Maybe just as a datapoint. My -current snap building machine is running
>a kernel of Oct 24 and I noticed this morning that it is taking a very
>long time to scp the snap to internat.

Try disabling newreno in both ends:

	sysctl -w net.inet.tcp.newreno=0

On my laptop with Wavelan cards this increases TCP throughput by a
factor of 5.


--
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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