Resource_management on Linux Café

Taming Resource-Intensive Background Jobs with nice and ionice

Sun, 09 Aug 2026 11:18:29 +0200

Introduction to Resource Management

I’ve seen this go wrong when a resource-intensive job is running in the background - it can consume significant CPU, memory, or I/O resources, slowing down other system activities. To mitigate this, Linux provides two essential tools: nice and ionice. In this article, we’ll explore how to use these tools to tame resource-intensive background jobs and maintain a smooth system experience.

Understanding nice

The nice command is used to adjust the scheduling priority of a process. By default, Linux assigns a nice value of 0 to each process, which means it has a normal scheduling priority. You can adjust this value using the nice command, with values ranging from -20 (highest priority) to 19 (lowest priority). For example:

Taming Resource-Intensive Desktop Apps with cgroups on Linux

Fri, 26 Jun 2026 11:13:38 +0200

Introduction to cgroups

I’ve found that managing resources on Linux systems can be a real challenge, especially when dealing with resource-intensive desktop apps. That’s where cgroups come in - a powerful tool that allows you to allocate and manage system resources such as CPU, memory, and I/O for a group of processes. In my experience, cgroups can be a game-changer for keeping your system running smoothly.

Creating a cgroup

To get started with cgroups, you’ll need to create a new group using the cgcreate command. This command not only creates the group but also specifies the subsystems that will be controlled. For example, to create a cgroup that controls CPU and memory usage, you can use the following command:

Taming Resource-Intensive Background Jobs with nice and ionice

Sun, 07 Jun 2026 10:37:27 +0200

Introduction to Resource Management

I’ve seen this go wrong when you’ve got a bunch of resource-intensive tasks running in the background, slowing down your entire system. In my experience, using nice and ionice can be a game-changer. These two commands let you control the priority of processes and disk I/O, which is especially useful for homelab servers or small machines.

Understanding nice

The nice command is all about setting the priority of a process. By default, Linux gives every process a nice value of 0. You can adjust this using the nice command, where negative values mean higher priority and positive values mean lower priority. For example, if you’ve got a command that’s hogging all your resources, you can run it with a lower priority like this: