How can I tune my LANforge machine to run as fast as it can?
• If you are running very fast (100Mbps+) connections, or connections over high-latency networks, you may want to increase the kernel buffers available to the networking stacks. Read and edit the gen_cfg.pl file that is installed in your /home/lanforge/ directory. • You can also try removing services that you do not need running on the system. We often remove Sendmail, iptables, ipchains, and the firewalling configuration from RedHat and Fedora Core Linux installations. • Turn off hardware you do not need. We often remove the usb-controller and usb-uhci modules from the /etc/modules.conf file, which may help with interrupt handling. Of course, if you need USB support, don’t remove them! • Compile your Linux kernel for your particular architecture. For example, if you are running on Pentium-IV machines, tell the kernel-config tool to use the processor instructions for the Pentium-IV, not just the 486. • TCP tuning can improve the performance of Layer 4 cross connects such as HTTP: • Bot
If you are running very fast (100Mbps+) connections, or connections over high-latency networks, you may want to increase the kernel buffers available to the networking stacks. Read and edit the gen_cfg.pl file that is installed in your /home/lanforge/ directory. You can also try removing services that you do not need running on the system. We often remove Sendmail, iptables, ipchains, and the firewalling configuration from RedHat and Fedora Core Linux installations. Tuning your hard drive can offer significant performance benefits, but it is also risky. Generally, a faster hard-drive will not affect LANforge unless you do not have enough physical memory. It can be useful to mask interrupts with the command: hdparm -u 1 /dev/hda. See the man page, or info on the web, for hdparm for more tuning information. Turn off hardware you do not need. We remove the usb-controller and usb-uhci modules from the /etc/modules.conf file, which may help with interrupt handling. Of course, if you need US
