+--server-tuning
|   +--dd
|   +--fdtree
|   +--fs
|   +--loader
|   +--memcached
|   +--metadata
|   +--network
|   +--perflog
|   |   +--cron-perflog
|   |   +--sample-output
|   +--postgres
|   +--postmark
|   +--raid
|   +--ram
|   +--scaling
|   +--swap

Network tuning

==> 2006-tuning <==

    http://www.psc.edu/networking/projects/tcptune/
    Enabling High Performance Data Transfers
    Thu, 30 Nov 2006
    
    Tuning TCP for Linux 2.4 and 2.6
    
      NB: Recent versions of Linux (version 2.6.17 and later) have full autotuning
      with 4 MB maximum buffer sizes.  Except in some rare cases, manual tuning
      is unlikely to substantially improve the performance of these kernels over
      most network paths, and is not generally recommended
    
==> 2010-tuning <==

    http://www.performancewiki.com/linux-tuning.html
    
    To view current TCP settings, run command:
    root# sysctl net.ipv4.tcp_keepalive_time
    
    net.ipv4.tcp_keepalive_time = 7200 // 2 hours
    where net.ipv4.tcp_keepalive_time is a TCP tuning parameter.
    
    To set a TCP parameter to a value, run command:
    root# sysctl -w net.ipv4.tcp_keepalive_time=1800
    
==> sysctl.conf <==

    # Kernel sysctl configuration file for Red Hat Linux
    #
    # $Revision: 1.1 $ $Date: 2009/09/21 20:58:16 $
    # $Source: /doc/sitelog/cmswbk005/config/RCS/sysctl.conf,v $
    # $Host: bsd118.region2.wpafb.af.mil $
    # $UUID: b3ac7f53-4d14-3331-8fcb-120d6a009ad2 $
    #
    # For binary values, 0 is disabled, 1 is enabled.  See sysctl(8) and
    # sysctl.conf(5) for more details.