Re: Make kernel aware of NIC queues

2013-02-06 Thread Luigi Rizzo
On Wed, Feb 06, 2013 at 11:05:59AM -0500, George Neville-Neil wrote: > > On Feb 6, 2013, at 09:37 , Luigi Rizzo wrote: ... > > Linux has tried to come up with a common framework to implement > > this kind of controls using "ethtool", and we should probably > > have a look at their approach and re

Re: Make kernel aware of NIC queues

2013-02-06 Thread George Neville-Neil
On Feb 6, 2013, at 09:37 , Luigi Rizzo wrote: > On Wed, Feb 06, 2013 at 06:19:27PM +0400, Alexander V. Chernikov wrote: >> Hello list! >> >> Today more and more NICs are capable of splitting traffic to different >> Rx/TX rings permitting OS to dispatch this traffic on different CPU >> cores.

Re: Make kernel aware of NIC queues

2013-02-06 Thread Luigi Rizzo
On Wed, Feb 06, 2013 at 06:19:27PM +0400, Alexander V. Chernikov wrote: > Hello list! > > Today more and more NICs are capable of splitting traffic to different > Rx/TX rings permitting OS to dispatch this traffic on different CPU > cores. However, there are some problems that arises from using

Make kernel aware of NIC queues

2013-02-06 Thread Alexander V. Chernikov
Hello list! Today more and more NICs are capable of splitting traffic to different Rx/TX rings permitting OS to dispatch this traffic on different CPU cores. However, there are some problems that arises from using multi-nic (or even singe multi-port NIC) configurations: Typical (OS) question