From: "James Hunter" <jhunter@aptx.com>
To: "Andrew Lunn" <andrew@lunn.ch>
Cc: <ecos-discuss@ecos.sourceware.org>
Subject: RE: [ECOS] Sockets getting full..
Date: Thu, 28 Jun 2007 15:12:00 -0000 [thread overview]
Message-ID: <8C4E0C2409735E4FBC22D754A238F94D5CD9D1@APTSBS.apt.local> (raw)
> -----Original Message-----
> From: Andrew Lunn [mailto:andrew@lunn.ch]
> Sent: 27 June 2007 23:45
> To: James Hunter
> Cc: ecos-discuss@ecos.sourceware.org
> Subject: Re: [ECOS] Sockets getting full..
>
> On Wed, Jun 27, 2007 at 11:25:32AM +0100, James Hunter wrote:
> > Hi,
> >
> > We are using a PowerQuicc III (MPC8541@677Mhz - so plenty of grunt)
> > which is tasked with sending and receiving data over a UDP
> connection.
> > The test application is only receiving data from another
> external UDP
> > transmitter.
> >
> > What we are seeing is almost immediately the socket is
> filling up with
> > data as if your application is not reading the data back
> quickly enough.
> >
> >
> > This test application spins on a Select() waiting to get
> packets, its
> > executing around ~10k times per second so fast enough to catch any
> > packets - we do sleep at the end of this loop.
> >
> > The sending unit sends around 700 packets per second, however we
> > receive only around 120 (going on the results returned by
> Select function).
> > However the packets received are in order (using a sequence
> number) so
> > nothing is dropped, they just appear to fall out of Select really
> > really slow (we are aiming for a lot more than 700 packets
> per second
> > from the
> > HW)
>
> I think we need to see the code in order to understand this....
>
> Andrew
>
Hi,
We resolved the issue, appears to be some legacy i2c code that was
causing us problems.
Thanks,
James.
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next reply other threads:[~2007-06-28 8:38 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-06-28 15:12 James Hunter [this message]
-- strict thread matches above, loose matches on Subject: below --
2007-06-27 20:07 James Hunter
2007-06-28 8:38 ` Andrew Lunn
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