Language Selection

English French German Italian Portuguese Spanish

Tuning the Linux kernel for better network throughput

The Linux kernel and the distributions that package it typically provide very conservative defaults to certain network settings that affect networking parameters. These settings can be tuned via the /proc filesystem or using the sysctl program. The latter is often better, as it reads the contents of /etc/sysctl.conf, which allows you to keep settings across reboots.

The following is a snippet from /etc/sysctl.conf that may improve network performance:

net.ipv4.tcp_window_scaling = 1
net.ipv4.tcp_syncookies = 1
net.core.rmem_max = 16777216
net.core.wmem_max = 16777216
net.ipv4.tcp_rmem = 4096 87380 16777216
net.ipv4.tcp_wmem = 4096 65536 16777216

The above isn't to replace what may already exist in /etc/sysctl.conf, but rather to supplement it.

More Here.




More in Tux Machines

Red Hat News

Kernel Space/Linux

today's howtos

Ten Years as Desktop Linux User: My Open Source World, Then and Now

I've been a regular desktop Linux user for just about a decade now. What has changed in that time? Keep reading for a look back at all the ways that desktop Linux has become easier to use -- and those in which it has become more difficult -- over the past ten years. I installed Linux to my laptop for the first time in the summer of 2006. I started with SUSE, then moved onto Mandriva and finally settled on Fedora Core. By early 2007 I was using Fedora full time. There was no more Windows partition on my laptop. When I ran into problems or incompatibilities with Linux, my options were to sink or swim. There was no Windows to revert back to. Read more