NetworkingPerformanceProject [FreeBSD WIKI]

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====== Networking Performance Project ======

A list of measurements we need to take and, if possible, automate.  Results should be pointed to by this page, but not directly stored here.

===== Tools =====

  * Conductor: https://github.com/gvnn3/conductor
  * pkt-gen: Currently in the tree in src/tools/tools/netmap
  * iperf: https://iperf.fr
  * netperf: [[https://github.com/gvnn3/netpeerf]]) (a project that contains Conductor scripts and some results

===== Things to Measure =====

A list of things we ought to measure in our tests.

* Config lock-related
  * ioctls/etc.
  * measure read/write lock ratio
    * global ifnet
    * ifnet address locks + ifaddr
    * lltable + llentry
    * firewall lists
    * nfirewall rules
    * nhost cache - IPv6
    * routing table + rtentries
    * inpcbinfo
      * UDP
      * TCP
      * syncache
    * nd6 prefix list, etc.
    * connection groups
    * ethernet bridge config
    * SNMP-monitored things
    * netisr
    * BPF
  * new connection setup
  * investigate Nicholais file descriptor optimisation = non-linear fd allocation (possibly not a big deal for real http)
  * Lock traces for common paths, stats
  * Cache-line contention measurements
  * packet narrative traces
  * measurement scenarios:
    * classic web
    * web w/ lagg
    * varnish
    * mySQL
    * tunnel services / VPN / L2TP
    * (full) BGP actively changed (peak 25/s ?)
    * NFS scenarios
    * different LAN sites
    * dynamic firewall rules
    * ethernet bridge
    * DNS-like (heavy UDP)
    * Add VNET to any of the above as well.