MIPS ftp problem!

MIPS ftp problem!

[Nicu Popovici]

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Hello,

I have a problem with the mips machine. I have an Atlas board and when I
do ftp on the mips machine from a intel one and I try to transfer files
( it works very very slow 0,0234 bytes/s). The same is happening when I
try to make ftp from the mips machine on a intel box ( all running Linux
).

Thanks,
Nicu

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Re: MIPS ftp problem!

[Jun Sun]

Nicu Popovici wrote:
> 
> Hello,
> 
> I have a problem with the mips machine. I have an Atlas board and when I
> do ftp on the mips machine from a intel one and I try to transfer files
> ( it works very very slow 0,0234 bytes/s). The same is happening when I
> try to make ftp from the mips machine on a intel box ( all running Linux
> ).
> 
> Thanks,
> Nicu

Nicu,

I had the similar problems for several times.  Most of the times it
turned out to be interrupt problems.  Basically the ether interrupt is
not interrupting the CPU.  Sometimes CPU detects the ether interrupt
later through some other interrupts.  For one time it was a hardware
setup problem (bus frequency is set too high). 

I also had one problem with /etc/nssswitch.conf, which cuases all
network apps pause for a long time during startup.

Hope this helps.

Jun

Re: MIPS ftp problem!

[Brady Brown]

Nicu Popovici wrote:

> Hello,
>
> I have a problem with the mips machine. I have an Atlas board and when I
> do ftp on the mips machine from a intel one and I try to transfer files
> ( it works very very slow 0,0234 bytes/s). The same is happening when I
> try to make ftp from the mips machine on a intel box ( all running Linux
> ).
>
> Thanks,
> Nicu

Is this using the Atlas on-board NIC? We found some pretty bad performance
with the on-board NIC and went to the very cheap RTL8139 PCI card from
OvisLink (used the 8139too.o driver). Performance there is pretty good.
--
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Brady Brown (bbrown@ti.com)       Work:(801)619-6103
Texas Instruments: Broadband Access Group
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Re: MIPS ftp problem!

[Kevin D. Kissell]

> > I have a problem with the mips machine. I have an Atlas board and when I
> > do ftp on the mips machine from a intel one and I try to transfer files
> > ( it works very very slow 0,0234 bytes/s). The same is happening when I
> > try to make ftp from the mips machine on a intel box ( all running Linux
> > ).
> >
> > Thanks,
> > Nicu
>
> Is this using the Atlas on-board NIC? We found some pretty bad performance
> with the on-board NIC and went to the very cheap RTL8139 PCI card from
> OvisLink (used the 8139too.o driver). Performance there is pretty good.

There seems to be a problem with the on-board NIC on the Philips
multi-I/O part misbehaving under load.   It seems to be OK
for TFTP downloading and telnet sessions, but loses packets/interrupts
under FTP or NFS.  So I heartily second Brady's recommendation
of using an add-in PCI NIC. At MIPS, we use AMD PCnet cards,
for which there is a MIPS cache-and-endianness-clean driver in the
kernel sources on the MIPS FTP site (and I think built into the kernel
binary there as well).

            Regards,

            Kevin K.

Re: MIPS ftp problem!

[Kevin D. Kissell]

> > I have a problem with the mips machine. I have an Atlas board and when I
> > do ftp on the mips machine from a intel one and I try to transfer files
> > ( it works very very slow 0,0234 bytes/s). The same is happening when I
> > try to make ftp from the mips machine on a intel box ( all running Linux
> > ).
> >
> > Thanks,
> > Nicu
>
> Is this using the Atlas on-board NIC? We found some pretty bad performance
> with the on-board NIC and went to the very cheap RTL8139 PCI card from
> OvisLink (used the 8139too.o driver). Performance there is pretty good.

There seems to be a problem with the on-board NIC on the Philips
multi-I/O part misbehaving under load.   It seems to be OK
for TFTP downloading and telnet sessions, but loses packets/interrupts
under FTP or NFS.  So I heartily second Brady's recommendation
of using an add-in PCI NIC. At MIPS, we use AMD PCnet cards,
for which there is a MIPS cache-and-endianness-clean driver in the
kernel sources on the MIPS FTP site (and I think built into the kernel
binary there as well).

            Regards,

            Kevin K.