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    SubjectRe: Kernel 2.6.15.1 + NFS is 4 times slower than FTP!?
    Alan, is it normal for FTP to be 2x as fast as NFS?
    With 100mbps, I never seemed to have any issues, but with GIGABIT I
    definitely see all sorts of weird issues.


    On Tue, 17 Jan 2006, Alan Cox wrote:

    > 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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