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SubjectRe: Kernel 2.6.15.1 + NFS is 4 times slower than FTP!?
FromAlan Cox <>
DateTue, 17 Jan 2006 18:11:23 +0000
On Maw, 2006-01-17 at 18:48 +0100, Tomasz Kłoczko wrote:
> > I wonder how much faster NFS over TCP would be, or if NFS in the kernel is
> > the problem itself?
>
> On Linux NFS over TCP is slower than over UDP ~10%.

For the specific case you measured. Its never quite that simple because
behaviour over different networks and error patterns varies a lot and
TCP can be a big win on loaded networks or under error conditions,
especially packet loss, where fragmentation losses kill throughput on
UDP.


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