Re: [PATCH 2/2] ipv4 routing: multipath with cache support, 2.6.10-rc3

2005-02-09 Thread Einar Lück
David S. Miller wrote: This was brought up before. It's the case where the system is acting as a router, you have to consider that case and not just the one where the local system is where the connections are originating from. Your trick only works because of how routes are cached per-socket.

Re: [PATCH 2/2] ipv4 routing: multipath with cache support, 2.6.10-rc3

2005-02-09 Thread Einar Lück
David S. Miller wrote: So essentially you want per-flow multipathing. Except that you're implementation is over-optimizing it to the point where it's only per-flow for your specific case where the connections are short lived and high rate. This hurts long lasting connections. So I'm pretty much

Re: [PATCH 2/2] ipv4 routing: multipath with cache support, 2.6.10-rc3

2005-02-09 Thread Einar Lück
David S. Miller wrote: Can you describe more precisely "the scenerios, that are relevant to us"? The scenarios we have in mind are setups in which a set of collaborating servers steadly establish connections among each other with a very high rate. This high rate requirement drove us to consider

Re: [PATCH 2/2] ipv4 routing: multipath with cache support, 2.6.10-rc3

2005-02-09 Thread Einar Lück
David S. Miller wrote: Can you describe more precisely the scenerios, that are relevant to us? The scenarios we have in mind are setups in which a set of collaborating servers steadly establish connections among each other with a very high rate. This high rate requirement drove us to consider

Re: [PATCH 2/2] ipv4 routing: multipath with cache support, 2.6.10-rc3

2005-02-09 Thread Einar Lück
David S. Miller wrote: So essentially you want per-flow multipathing. Except that you're implementation is over-optimizing it to the point where it's only per-flow for your specific case where the connections are short lived and high rate. This hurts long lasting connections. So I'm pretty much

Re: [PATCH 2/2] ipv4 routing: multipath with cache support, 2.6.10-rc3

2005-02-09 Thread Einar Lück
David S. Miller wrote: This was brought up before. It's the case where the system is acting as a router, you have to consider that case and not just the one where the local system is where the connections are originating from. Your trick only works because of how routes are cached per-socket.