Re: funny TCP?

Andi Kleen (ak@muc.de)
29 May 1998 20:00:17 +0200


Meelis Roos <mroos@tartu.cyber.ee> writes:

> VT> I found, that ftp transfer from Win95 to Linux got very slow.
> VT> About 1Mbyte will go OK, but then speed goes down.
>
> Confirmed. When getting OR putting file in ascii mode between such computers,
> the window is sometimes decreased until it reaches 0 and then increases to 1 or 2
> times MTU.
>
> BUT: when transfering the same file (all zeros) in BINARY mode, the window
> never got below 26xxx bytes and performance was fine.

Different write/read patterns from ftp? Try strace on sender and receiver.

-Andi

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