Re: Are we losing users to Gentoo?
On Wed, Nov 20, 2002 at 04:15:42PM +0100, Dagfinn Ilmari Mannsåker wrote:
> Andrew Suffield <asuffield@debian.org> writes:
>
> > On Wed, Nov 20, 2002 at 02:31:06PM +0100, Russell Coker wrote:
> >> If you transfer gigabyte files via SCP then an optimised ssh binary
> >> would be a handy thing to have.
> >
> > If you transfer gigabyte files via scp, you're screwed. scp has some
> > serious performance issues; use rsync-over-ssh.
>
> What kind of performance issues? I just SCPed a 4.2GB file (the woody
> ISO's concatenated) over 100BaseT-FD and it sustained around 6.5MB/s and
> 100% CPU load on the sending side (a 566MHz Celeron). The receiving
> side, a 800MHz P-III mobile hovered around 60% CPU load.
You just demonstrated that it was CPU bottlenecked, and thus not fully
utilizing the available network capacity.
--
- mdz
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