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Re: [RESEND] tuning linux for high network performance?

To: "David S. Miller" <davem@xxxxxxxxxxxxx>, bert hubert <ahu@xxxxxxx>
Subject: Re: [RESEND] tuning linux for high network performance?
From: Roy Sigurd Karlsbakk <roy@xxxxxxxxxxxxx>
Date: Wed, 23 Oct 2002 15:42:48 +0200
Cc: netdev@xxxxxxxxxxx, Kernel mailing list <linux-kernel@xxxxxxxxxxxxxxx>
In-reply-to: <1035379308.5950.3.camel@xxxxxxxxxxxxx>
Organization: ProntoTV AS
References: <200210231218.18733.roy@xxxxxxxxxxxxx> <20021023130101.GA646@xxxxxxxxxxxxxxx> <1035379308.5950.3.camel@xxxxxxxxxxxxx>
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> The e1000 can very well do hardware checksumming on transmit.
> The missing piece of the puzzle is that his application is not
> using sendfile(), without which no transmit checksum offload
> can take place.

As far as I've understood, sendfile() won't do much good with large files. Is 
this right?

We're talking of 3-6GB files here ...

Roy Sigurd Karlsbakk, Datavaktmester
ProntoTV AS -
Tel: +47 9801 3356

Computers are like air conditioners.
They stop working when you open Windows.

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