Re: [Bloat] Linux network is damn fast, need more use XDP (Was: DC behaviors today)

2017-12-07 Thread Matthias Tafelmeier
That's the discussion I meant: https://www.youtube.com/watch?v=vsjxgOpv1n8 Manifold excuses should I've turned your words in any respect. On top, haven't rewatched it, only putting it here for completeness' sake. > You are mis-quoting me. I have not recommended tremendously increasing > the RX/

Re: [Bloat] Linux network is damn fast, need more use XDP (Was: DC behaviors today)

2017-12-07 Thread Jesper Dangaard Brouer
(Removed bloat-lists to avoid cross ML-posting) On Mon, 4 Dec 2017 18:19:09 +0100 Matthias Tafelmeier wrote: > Hello, > > Scaling up to more CPUs and TCP-stream, Tariq[1] and I have showed the > > Linux kernel network stack scales to 94Gbit/s (linerate minus overhead). > > But when the drivers

Re: [Bloat] Linux network is damn fast, need more use XDP (Was: DC behaviors today)

2017-12-04 Thread Joel Wirāmu Pauling
On 5 December 2017 at 06:00, Dave Taht wrote: >>> The route table lookup also really expensive on the main cpu. > > To clarify the context here, I was asking specifically if the X5 mellonox card > did routing table offlload or only switching. > To clarify what I know the X5 using it's smart offlo

Re: [Bloat] Linux network is damn fast, need more use XDP (Was: DC behaviors today)

2017-12-04 Thread Matthias Tafelmeier
Hello, > Scaling up to more CPUs and TCP-stream, Tariq[1] and I have showed the > Linux kernel network stack scales to 94Gbit/s (linerate minus overhead). > But when the drivers page-recycler fails, we hit bottlenecks in the > page-allocator, that cause negative scaling to around 43Gbit/s. > > [1]

Re: [Bloat] Linux network is damn fast, need more use XDP (Was: DC behaviors today)

2017-12-04 Thread Dave Taht
Jesper: I have a tendency to deal with netdev by itself and never cross post there, as the bufferbloat.net servers (primarily to combat spam) mandate starttls and vger doesn't support it at all, thus leading to raising davem blood pressure which I'd rather not do. But moving on... On Mon, Dec 4,