[ILUG] Network question

[John Orford]

Thanks for the input!

I tested a little more and i got the results below.

watermelon is the 2.2ghz box and alow the 0.5ghz one.

ethtool output is also given below - i don't know which part is important so i 
included all - the output is the same on both computers...

i have no idea whats up with the results, altho unscientific (to the extreme) 
both comps had fairly uniform load wrt other programs throughout.

my best guess is that ssh does cause alow's cpuload to be the bottleneck.  
maybe using the fish kioslave complicates matters in someway.  if i get time 
i'll try ftping files over and sftping files on the command line.  I'll 
report back, once i get to the bottom of this...

transfer instantiated on alow:

watermelon -> alow: 1mb/s
  cpu load on alow: max
alow -> watermelon: 1mb/s
  cpu load on alow: max

transfer instantiated on watermelon:

watermelon -> alow: 0.8mb/s
  cpu load on alow: ~ 80%
alow -> watermelon: 2.0mb/s
  cpu load on alow: max

ethtool eth0 output:
 Supported ports: [ TP MII ]
        Supported link modes:   10baseT/Half 10baseT/Full
                                100baseT/Half 100baseT/Full
        Supports auto-negotiation: Yes
        Advertised link modes:  10baseT/Half 10baseT/Full
                                100baseT/Half 100baseT/Full
        Advertised auto-negotiation: Yes
        Speed: 100Mb/s
        Duplex: Full
        Port: MII
        PHYAD: 32
        Transceiver: internal
        Auto-negotiation: on
        Supports Wake-on: pumbg
        Wake-on: d
        Current message level: 0x00000007 (7)
        Link detected: yes



Pada Minggu 13 Februari 2005 18:55, Paul O'Malley menulis:
> John Orford wrote:
> >When transferring files to and from my girlfriend's and my computers I
> > notice that if I start a transfer from my girlfriend's computer I get
> > speeds of up to 3mb/sec whereas if the transfer is started on my comp I
> > generally get much slower speeds...
> >
> >Both computers run Debian Sid, although my computer is a 533mhz celeron
> > and my girlfriend's a 2.3ghz Athlon...
> >
> >Normally I use the fish protocol in Konqueror to do the file transfers.
> >
> >Anybody have any ideas about what could be going on?  If there is a
> > bottleneck somewhere, surely transfers instantiated from both computers
> > should be equally effected...
>
> Most likely it is the load caused by the program that is in use.
> Try ftp for known file size values most command line ftp clients have
> very little resource hunger and as such I imagine that is the real
> issue. (but it is imagination ;))
> Regards,
>
> Paul O'Malley