[realtek] 8139too performance - can you shed some light?
Carlo E. Prelz
Fri, 3 Aug 2001 08:27:41 +0200
Subject: Re: [realtek] 8139too performance - can you shed some light?
Date: Thu, Aug 02, 2001 at 01:31:29PM -0400
Quoting Donald Becker (firstname.lastname@example.org):
> > > > See if you can tell where the pkts are being dropped, and for what
> > > > reason. Take a look at the /proc/net/dev file on all the machines,
> > > > for instance.
> The number of packets dropped by the hardware, presumably because there
> was no room in the Rx ring, shows up in
> The number of packets dropped because there were no skbuffs available is
> counted in
The kernel part seems to behave properly: on a period of one half
minute at full speed, almost 300000 packets were sent, and only 40
were dropped and 1 was missed (data from /proc/net/dev).
But my application sees almost nothing. And I have a separate thread
for reading from the socket, who calls select, grabs the bytes, stores
them in shared memory if needed, and goes back to select.
On a faster machine, all works perfectly.
Thanks for your attention!
* Se la Strada e la sua Virtu' non fossero state messe da parte,
* K * Carlo E. Prelz - email@example.com che bisogno ci sarebbe
* di parlare tanto di amore e di rettitudine? (Chuang-Tzu)