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Re: sendfile+zerocopy: fairly sexy (nothing to do with ECN)

To: Chris Wedgwood <cw@xxxxxxxx>
Subject: Re: sendfile+zerocopy: fairly sexy (nothing to do with ECN)
From: "David S. Miller" <davem@xxxxxxxxxx>
Date: Tue, 30 Jan 2001 14:17:57 -0800 (PST)
Cc: Andrew Morton <andrewm@xxxxxxxxxx>, lkml <linux-kernel@xxxxxxxxxxxxxxx>, "netdev@xxxxxxxxxxx" <netdev@xxxxxxxxxxx>
In-reply-to: <20010131064911.B7244@xxxxxxxxxxxxxxxxxxx>
References: <3A76B72D.2DD3E640@xxxxxxxxxx> <3A728475.34CF841@xxxxxxxxxx> <3A726087.764CC02E@xxxxxxxxxx> <20010126222003.A11994@xxxxxxxxxxx> <14966.22671.446439.838872@xxxxxxxxxxxxxxx> <14966.47384.971741.939842@xxxxxxxxxxxxxxx> <3A76D6A4.2385185E@xxxxxxxxxx> <20010131064911.B7244@xxxxxxxxxxxxxxxxxxx>
Sender: owner-netdev@xxxxxxxxxxx
Chris Wedgwood writes:
 > What server are you using here? Using NetApp filers I don't see
 > anything like this, probably only 8.5MB/s at most and this number is
 > fairly noisy.

8.5MB/sec sounds like half-duplex 100baseT.  Positive you are running
at full duplex all the way to the netapp, and if so how many switches
sit between you and this netapp?

Later,
David S. Miller
davem@xxxxxxxxxx

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