Speed of protocol fish
Werner Modenbach
modenbach at alc.de
Wed May 10 16:18:03 CEST 2006
Hi John,
thanks for your fast answer.
As far as I understand fish is the same than using scp except it isn't on a
command line but implemented as a protocol in KDE.
When using scp in a shell transfers are significantly faster!!!
You can easily verify that by copying a large file i.e. a CD ISO image to a
server using both methods.
To my knowledge there is no option in konqueror or KDE to manipulate chunk
sizes.
- Werner -
Am Mittwoch, 10. Mai 2006 15:57 schrieb John Berthels:
> On 09/05/06, Werner Modenbach <modenbach at alc.de> wrote:
> > I recognised a limitation of speed of about 1MB/sec. which is really
> > unsatisfying. So I cancelled the copy process. When doing drag and drop
> > with more than 10 subdirs of my data separately in parallel I recognised
> > the same limit for each transfer. But the total transfer rate of all
> > copies was about 10MB/sec. . So this should not be a limit of disk
> > access, CPU power or the network.
> > What is the reason for the limitation? Is there anything I can do here?
>
> I don't know the fish protocol, but the usual reason for multiple
> streams going faster than a single stream is latency (e.g. time for
> the other end to ack the data). You can sometimes reduce the effect of
> end-to-end latency on throughput by reading and writing in larger
> 'chunks' - is there an option regarding that?
>
> jb
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