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Re: Sockets getting full..
- From: Andrew Lunn <andrew at lunn dot ch>
- To: James Hunter <jhunter at aptx dot com>
- Cc: ecos-discuss at ecos dot sourceware dot org
- Date: Thu, 28 Jun 2007 00:45:22 +0200
- Subject: Re: [ECOS] Sockets getting full..
- References: <8C4E0C2409735E4FBC22D754A238F94D5CD9CB@APTSBS.apt.local>
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
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