On 7/3/15, 9:47 AM, "David Miller" <da...@davemloft.net> wrote:
>From: Lawrence Brakmo <bra...@fb.com> >Date: Thu, 2 Jul 2015 18:21:24 -0700 > >> This is a request for comments. >> >> TCP-NV (New Vegas) is a major update to TCP-Vegas. An earlier version of >> NV was presented at 2010's LPC (slides). It is a delayed based >> congestion avoidance for the data center. This version has been tested >> within a 10G rack where the HW RTTs are 20-50us. >> >> A description of TCP-NV, including implementation and experimental >> results, can be found at: >> http://www.brakmo.org/networking/tcp-nv/TCPNV.html >> >> The current version includes many module parameters to support >> experimentation with the parameters. >> >> Signed-off-by: Lawrence Brakmo <lawre...@brakmo.org> > >I'm disappointed in the skb->cb[] size increase, like Eric. This >severely negatively impacts everyone on every Linux system in the >world, not just people using NV. > >The performance implications from increasing sk_buff by even 1 byte in >size are absolutely non-trivial. I will look into Neal¹s comment regarding using a union in the skb->cb[] so I don¹t have to increase skb->cb[] size. -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
