Bernd Eckenfels <ecki@lina.inka.de> :
[...]
> You can increase the reserved free memory (not sure where to do this in
> 2.4.x). This is important, cause network memory requests are usually within
> interrupt handlers and therefore no paging can occur. You can play a bit
This reserve isn't dedicated to networking alas.
[...]
> > However you can increase the length of the Rx/Tx rings on the 100Mb/s side
> > and tune the pci latency timers (depends on the hardware fifo size).
>
> Increasing rx/rx rings is not a particular good idea cause it slows down
> TCPs adaption to network congestion and router overload.
Think about forwarding between GigaE and FastE. Think about overflow and
bad irq latency. I wouldn't cut buffering at l2 as it averages the peaks.
Different trade-offs make sense of course.
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This archive was generated by hypermail 2b29 : Fri Nov 23 2001 - 21:00:17 EST