Table of Contents

Linux - Directory /proc/sys/kernel/

About

This directory contains configuration files that directly affect the operation of the Kernel

Most important kernel files

4	2	30

The second value sets the threshold percentage of free space when logging will be suspended, while the first value dictates the percentage of free space required for logging to resume. The third value sets the interval, in seconds, that the kernel polls the file system to see if logging should be suspended or resumed.

Four values are found in the printk file:

6	4	1	7

Each of these values defines a different rule for dealing with error messages. The first value, called the console loglevel, defines the lowest priority of messages that will be printed to the console. (Note that, the lower the priority, the higher the loglevel number.) The second value sets the default loglevel for messages without an explicit loglevel attached to them. The third value sets the lowest possible loglevel configuration for the console loglevel. The last value sets the default value for the console loglevel.

The random directory stores a number of values related to generating random numbers for the kernel.