For each of these stages and components there are different variations and approaches for example, GRUB, coreboot or Das U-Boot can be used as boot loaders (historical examples are LILO, SYSLINUX or Loadlin), while the startup scripts can be either traditional init-style, or the system configuration can be performed through modern alternatives such as systemd or Upstart.Įarly stages of the Linux startup process depend very much on the computer architecture. The multi-stage booting process of Linux is in many ways similar to the BSD and other Unix-style boot processes, from which it derives.īooting a Linux installation involves multiple stages and software components, including firmware initialization, execution of a boot loader, loading and startup of a Linux kernel image, and execution of various startup scripts and daemons. ( Learn how and when to remove this template message)

Please help update this article to reflect recent events or newly available information. All of this is wrapped in an intuitive, easy to use interface that makes sense for LAN-sized installations up to complex networks with thousands of devices.This article needs to be updated. Cacti provides a fast poller, advanced graph templating, multiple data acquisition methods, and user management features out of the box. Cacti is a complete network graphing solution designed to harness the power of RRDTool’s data storage and graphing functionality.A default installation provides a lot of graphs with almost no work.

Munin is a networked resource monitoring tool that can help analyze resource trends and “what just happened to kill our performance?” problems.Ganglia is a scalable distributed monitoring system for high-performance computing systems such as clusters and Grids.It marked the start of a new generation of monitoring tools, making it easier than ever to store, retrieve, share, and visualize time-series data. Teams use Graphite to track the performance of their websites, applications, business services, and networked servers. Graphite is an enterprise-ready monitoring tool that runs equally well on cheap hardware or Cloud infrastructure.collectd – The system statistics collection daemon.

Linux cpu usage command