Slow transfer rates with FTP and Fish on Intrepid and Hardy

[Nigel Henry]

Problem resolved, I think!, as below.

On Monday 15 February 2010 22:26, Nigel Henry wrote:
> On Monday 15 February 2010 18:57, Hakan Koseoglu wrote:
> > Hi Nigel,
> >
> > On Mon, Feb 15, 2010 at 4:56 PM, Nigel Henry
> >
> > <cave.dnb2m97pp at aliceadsl.fr> wrote:
> > > I'm getting very slow transfer rates 10 - 50KB/s when transfering data
> > > using Gftp on my local network. This is specifically with Kubuntu and
> > > Ubuntu Intrepid, and Kubuntu Hardy.
> >
> > Test the actual network performance using a tool like iperf. Sample run
> > below:
>
> Hi. I ran the tests as below. For some reason iperf is not working as on
> your example. I also tried it on Dapper, and Debian Etch (on the same
> machine), where Gftp gets the directory listing as soon as I click enter,
> and transfers are quick, but iperf shows the same as below which was from
> Intrepid.
>
> So the situation is that Gftp on Dapper, and Debian Etch transfer files at
> high speed, but Gutsy, Hardy, and Intrepid transfer really slowly, like the
> connection is somehow throttled.
>
> Nigel.

I ran cat /proc/interrupts, and there's a bunch of stuff on irq 10, where eth0 
is. See below.  I rebooted, and appended the kernel line with irqpoll. The 
same stuff is shown on irq 10, but now Gftp gets the directory list in an 
instant, and ftp transfers are up to speed.


Last login: Mon Feb 15 21:41:46 2010 from 192.168.0.230
djmons at djmons-desktop:~$ cat /proc/interrupts
           CPU0
  0:         72   IO-APIC-edge      timer
  1:        360   IO-APIC-edge      i8042
  2:          0    XT-PIC-XT        cascade
  4:          3   IO-APIC-edge
  5:      30660   IO-APIC-fasteoi   ohci_hcd:usb2, sata_nv, CMI8738, eth0
  7:          1   IO-APIC-edge      parport0
  8:          2   IO-APIC-edge      rtc0
 10:     900004   IO-APIC-fasteoi   ohci1394, HDA Intel
 11:          2   IO-APIC-fasteoi   ehci_hcd:usb1, sata_nv, EMU10K1
 12:      26098   IO-APIC-edge      i8042
 14:      45485   IO-APIC-edge      pata_amd
 15:          0   IO-APIC-edge      pata_amd
NMI:          0   Non-maskable interrupts
LOC:    1191533   Local timer interrupts
RES:          0   Rescheduling interrupts
CAL:          0   function call interrupts
TLB:          0   TLB shootdowns
SPU:          0   Spurious interrupts
ERR:          1
MIS:          0
djmons at djmons-desktop:~$

Thanks for the tools you suggested. I'll have to find out why iperf is not 
working properly.

Nigel.