sadc stands for “system activity data collector”.sar collects and displays ALL system activities statistics.For example, the following gives the system CPU statistics 3 times (with 1 second interval). Version 10 is the current stable version of sysstat. Once installed, verify the sar version using “sar -V”.

Note: This will install sar and other systat utilities under /usr/local/bin For example, /etc/rc.d/rc3.d/S01sysstat is linked automatically to /etc/rc.d/init.d/sysstatĪfter the.Creates appropriate links from /etc/rc.d/rc*.d/ directories to /etc/rc.d/init.d/sysstat to start the sysstat automatically during Linux boot process.If you don’t configure sysstat with this option, you have to do this ugly job yourself manually. This does the following automatically for you. Note: Make sure to pass the option –enable-install-cron. Rpm -ivh sysstat-10.0. Install Sysstat from Sourceĭownload the latest version from sysstat download page. Install it using any one of the following methods depending on your distribution. Install and Configure Sysstat Install Sysstat Packageįirst, make sure the latest version of sar is available on your system. So, bookmark this for your future reference. This is the only guide you’ll need for sar utility. This article explains how to install and configure sysstat package (which contains sar utility) and explains how to monitor the following Linux performance statistics using sar. Using sar, you can also collect all performance data on an on-going basis, store them, and do historical analysis to identify bottlenecks.

Using sar you can monitor performance of various Linux subsystems (CPU, Memory, I/O.) in real time.

Linux cpu stats