netmap2
DDOS MITIGATION WITH NETMAP AND RUST 45 days later WHAT’STHE PROBLEM AGAIN? • TCP 3-way handshake • kernel can’t handle the load HOW DO WE SOLVE IT? • developing our own solution from scratch using userland networking HOW DO WE SOLVE IT? WHERE WE LEFT LASTTIME • 5M SYN packets, 16 cores utilised A CHALLENGER APPEARS WHY SO SLOW? • we’re so slow, kernel developers are catching up • that’s no good W
High Performance Network I/O for Virtual Machines
The Problem netmap integration Fast e1000 Open problems High Performance Network I/O for Virtual Machines L. Rizzo, G. Lettieri, V. Maffione Dipartimento di Ingegneria dell’Informazione University of Pisa KVM Forum, 2013 Rizzo, Lettieri, Maffione High Performance Network I/O for Virtual Machines The Problem netmap integration Fast e1000 Open problems Outline 1 The Problem 2 netmap integration netm
iij/ipgenを試してみる - Qiita
iij/ipgenというFreeBSD上で動作するパケットジェネレータがGitHubで公開されていたので試してみました。 以下の手順はiij/ipgen/README.mdの内容を元に、FreeBSD+NetBSDでテスト環境を構築するまでの手順です。 ネットワーク構成 今回は以下のようなネットワーク構成で試してみました。 +-------------------------------------+ | FreeBSD | +---+-----------------+---------------+ |em1 |em2 |172.16.0.59 |172.16.1.159 | | | | |wm1 |wm2 |172.16.0.58 |172.16.1.158 +---+-----------------+---------------+ | NetBSD | +-----------
Single RX queue kernel bypass in Netmap for high packet rate networking
Single RX queue kernel bypass in Netmap for high packet rate networking10/09/2015 In a previous post we discussed the performance limitations of the Linux kernel network stack. We detailed the available kernel bypass techniques allowing user space programs to receive packets with high throughput. Unfortunately, none of the discussed open source solutions supported our needs. To improve the situati
Revisiting Network I/O APIs: The netmap Framework - ACM Queue
January 17, 2012 Volume 10, issue 1 PDF Revisiting Network I/O APIs: The netmap Framework It is possible to achieve huge performance improvements in the way packet processing is done on modern operating systems. Luigi Rizzo, Università di Pisa Today 10-gigabit interfaces are used more and more in datacenters and servers. On these links, packets flow as fast as one every 67.2 nanoseconds, yet moder
netmap: A Novel Framework for Fast Packet I/O | USENIX
Luigi Rizzo, Università di Pisa, Italy Awarded Best Paper! Many applications (routers, traffic monitors, firewalls, etc.) need to send and receive packets at line rate even on very fast links. In this paper we present netmap, a novel framework that enables commodity operating systems to handle the millions of packets per seconds traversing 1..10 Gbit/s links, without requiring custom hardware or c
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Netmap for Linux [LWN.net]