Re: [ovs-dev] Userspace Netlink MMAP status

2014-05-06 Thread Thomas Graf
On 05/01/2014 06:09 PM, Zoltan Kiss wrote: On 29/04/14 17:36, Thomas Graf wrote: On Tue, Apr 29, 2014 at 05:17:07PM +0100, Zoltan Kiss wrote: On 23/04/14 22:56, Thomas Graf wrote: On 04/23/2014 10:12 PM, Ethan Jackson wrote: The problem has actually gotten worse since we've gotten rid of the

Re: [ovs-dev] Userspace Netlink MMAP status

2014-05-06 Thread Thomas Graf
On 04/29/2014 09:47 PM, Ethan Jackson wrote: The common use case is a flow expiring during the lifetime of a TCP connection. It will result in multiple data packets being sent upwards. It's much less likely in the megaflows era though. I think this is pretty unlikely except in some extreme circ

Re: [ovs-dev] Userspace Netlink MMAP status

2014-05-01 Thread Zoltan Kiss
On 29/04/14 17:36, Thomas Graf wrote: On Tue, Apr 29, 2014 at 05:17:07PM +0100, Zoltan Kiss wrote: On 23/04/14 22:56, Thomas Graf wrote: On 04/23/2014 10:12 PM, Ethan Jackson wrote: The problem has actually gotten worse since we've gotten rid of the dispatcher thread. Now each thread has it's

Re: [ovs-dev] Userspace Netlink MMAP status

2014-04-29 Thread Ethan Jackson
> The common use case is a flow expiring during the lifetime of a TCP > connection. It will result in multiple data packets being sent upwards. > It's much less likely in the megaflows era though. I think this is pretty unlikely except in some extreme circumstances. For a flow to be removed from t

Re: [ovs-dev] Userspace Netlink MMAP status

2014-04-29 Thread Thomas Graf
On Tue, Apr 29, 2014 at 05:17:07PM +0100, Zoltan Kiss wrote: > On 23/04/14 22:56, Thomas Graf wrote: > >On 04/23/2014 10:12 PM, Ethan Jackson wrote: > >>The problem has actually gotten worse since we've gotten rid of the > >>dispatcher thread. Now each thread has it's own channel per port. > >> >

Re: [ovs-dev] Userspace Netlink MMAP status

2014-04-29 Thread Zoltan Kiss
On 23/04/14 22:56, Thomas Graf wrote: On 04/23/2014 10:12 PM, Ethan Jackson wrote: The problem has actually gotten worse since we've gotten rid of the dispatcher thread. Now each thread has it's own channel per port. I wonder if the right approach is to simply ditch the per-port fairness in th

Re: [ovs-dev] Userspace Netlink MMAP status

2014-04-23 Thread Thomas Graf
On 04/23/2014 10:12 PM, Ethan Jackson wrote: The problem has actually gotten worse since we've gotten rid of the dispatcher thread. Now each thread has it's own channel per port. I wonder if the right approach is to simply ditch the per-port fairness in the case where mmap netlink is enabled.

Re: [ovs-dev] Userspace Netlink MMAP status

2014-04-23 Thread Ethan Jackson
The problem has actually gotten worse since we've gotten rid of the dispatcher thread. Now each thread has it's own channel per port. I wonder if the right approach is to simply ditch the per-port fairness in the case where mmap netlink is enabled. I.E. we simply have one channel per thread and