Speed of protocol fish

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 <modenbachalc.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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On Wed, May 10, 2006 at 04:18:03PM +0200, Werner Modenbach
wrote:
> 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.

    not exactly. fish uses a perl program on the `server´ to
answer the
kioslave's requests:

http://websvn.kde.or
g/branches/KDE/3.5/kdebase/kioslave/fish/fish.pl?rev=438982&
amp;view=log

> When using scp in a shell transfers are significantly
faster!!!

    yes, I noticed this too.
    
    take also in account that the code is rather
unmaintained; last commit was:
Modified Fri Nov 19 17:40:19 2004 UTC (17 months, 3 weeks
ago) by waba. maybe it
doesn't need maintenance, but given the performance problem
it has, I guess it's
just old code. useful, but slow.

-- 
(Not so) Random fortune:
12:56 < yogurt2ungue> La curva de conocimiento en S.L.
es mas empinada eso hace
    que el costo suba y no es $$
12:58 < perlhead> yogurt2ungue: no es cierto que la
curva sea más empinada
12:58 < perlhead> yogurt2ungue: es que el techo está
más arriba
12:59 < perrito666> perlhead: creo que el tema es que
no tenemos techo
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