Save up to 30% on Dedicated Servers – Chat Now!

Your Webhosting Questions
Answered by the Webhosting Experts
Tags +
...
Tags
...
...

How do I perform tuning with sysctl?

sysctl is an interface that allows you to make changes to a running FreeBSD system. This includes many advanced options of the TCP/IP stack and virtual memory system that can dramatically improve performance for an experienced system administrator. Over five hundred system variables can be read and set using sysctl.

At its core, sysctl serves two functions: to read and to modify system settings.

To view all readable variables:

% sysctl -a

To read a particular variable, for example, kern.maxproc:

% sysctl kern.maxproc
kern.maxproc: 1044

To set a particular variable, use the intuitive variable=value syntax:

# sysctl kern.maxfiles=5000
kern.maxfiles: 2088 -> 5000

Settings of sysctl variables are usually either strings, numbers, or booleans (a boolean being 1 for yes or a 0 for no).

If you want to set automatically some variables each time the machine boots, add them to the /etc/sysctl.conf file.

Share

Facebook
Twitter
LinkedIn
Email
WhatsApp

Need More Personalized Help?

If you have any further issues, questions, or would like some assistance checking on this or anything else, please reach out to us from your my.hivelocity.net account and provide your server credentials within the encrypted field for the best possible security and support.

If you are unable to reach your my.hivelocity.net account or if you are on the go, please reach out from your valid my.hivelocity.net account email to us here at: [email protected] We are also available to you through our phone and live chat system 24/7/365.