Re: [ovs-dev] Agenda for IRC neeting for 8/13 (Nithin Raju)

2014-08-26 Thread Samuel Ghinet
Thanks Ben! From: Ben Pfaff [b...@nicira.com] Sent: Friday, August 22, 2014 7:59 PM To: Samuel Ghinet Cc: dev@openvswitch.org Subject: Re: [ovs-dev] Agenda for IRC neeting for 8/13 (Nithin Raju) On Fri, Aug 22, 2014 at 04:27:01PM +, Samuel Ghinet wrote

Re: [ovs-dev] Agenda for IRC neeting for 8/13 (Nithin Raju)

2014-08-22 Thread Ben Pfaff
On Fri, Aug 22, 2014 at 04:27:01PM +, Samuel Ghinet wrote: > [QUOTE] > OVS 1.9.3 needed a trip to userspace for every new microflow. But OVS > 1.11 introduced megaflows, so that in many cases that is no longer > necessary. > [/QUOTE] > Yeah, the microflow is the kernel flow I was trying to say

Re: [ovs-dev] Agenda for IRC neeting for 8/13 (Nithin Raju)

2014-08-22 Thread Samuel Ghinet
am From: Ben Pfaff [b...@nicira.com] Sent: Friday, August 22, 2014 6:37 PM To: Samuel Ghinet Cc: dev@openvswitch.org Subject: Re: [ovs-dev] Agenda for IRC neeting for 8/13 (Nithin Raju) On Fri, Aug 22, 2014 at 03:24:47PM +, Samuel Ghinet wrote: > Wh

Re: [ovs-dev] Agenda for IRC neeting for 8/13 (Nithin Raju)

2014-08-22 Thread Ben Pfaff
On Fri, Aug 22, 2014 at 03:24:47PM +, Samuel Ghinet wrote: > What I was testing against was ovs 1.9.3 and ovs 1.11 OVS 1.9.3 needed a trip to userspace for every new microflow. But OVS 1.11 introduced megaflows, so that in many cases that is no longer necessary. > The fact is that, even for

Re: [ovs-dev] Agenda for IRC neeting for 8/13 (Nithin Raju)

2014-08-22 Thread Samuel Ghinet
dev@openvswitch.org Subject: Re: [ovs-dev] Agenda for IRC neeting for 8/13 (Nithin Raju) On Fri, Aug 22, 2014 at 01:55:13AM +, Samuel Ghinet wrote: > port NORMAL and port FLOOD, unlike physical (i.e. ports corresponding to > specific VMs or to external) or logical (GRE / VXLAN / etc.) are a

Re: [ovs-dev] Agenda for IRC neeting for 8/13 (Nithin Raju)

2014-08-21 Thread Ben Pfaff
On Fri, Aug 22, 2014 at 01:55:13AM +, Samuel Ghinet wrote: > port NORMAL and port FLOOD, unlike physical (i.e. ports corresponding to > specific VMs or to external) or logical (GRE / VXLAN / etc.) are a userspace > concept only. > This means that, when a "ovs-ofctl add-flow br0 actions=normal

Re: [ovs-dev] Agenda for IRC neeting for 8/13 (Nithin Raju)

2014-08-21 Thread Samuel Ghinet
org Subject: Re: [ovs-dev] Agenda for IRC neeting for 8/13 (Nithin Raju) On Thu, Aug 21, 2014 at 03:08:59PM +, Samuel Ghinet wrote: > I wanted to point out something about: > "At a high level, the fraction of packets that make it to userspace should be > very small. So it is not

Re: [ovs-dev] Agenda for IRC neeting for 8/13 (Nithin Raju)

2014-08-21 Thread Ben Pfaff
On Thu, Aug 21, 2014 at 03:08:59PM +, Samuel Ghinet wrote: > I wanted to point out something about: > "At a high level, the fraction of packets that make it to userspace should be > very small. So it is not worth the optimization" > > If we have the port NORMAl (and perhaps, FLOOD) set, then

Re: [ovs-dev] Agenda for IRC neeting for 8/13 (Nithin Raju)

2014-08-21 Thread Samuel Ghinet
Sorry for long delay here. I wanted to point out something about: "At a high level, the fraction of packets that make it to userspace should be very small. So it is not worth the optimization" If we have the port NORMAl (and perhaps, FLOOD) set, then the queuing of packets to userspace happens