![]() > plist-sz : Number of tasks in the task list. > runq-sz : Run queue length (number of tasks waiting for run time). Those files are located under “/var/log/sa/”).Įxample ~]# sar -q 1 2 Sar -q -f /var/log/sa/sa23 (Fetch load average details of previous dates. Sar -q 1 2 (Lists load average details two times with an interval of on second) Sar -q (Lists the details from the staring of this day) This will report the run queue status (runq-sz), task list status (plist-sz) and the load averages of last 1 minute, 5 minutes, and 15 minutes. We can use the switch “q” to obtain load average details. It’ll display server resources two times with one second interval.ĭifferent switches available with SAR and its usages 1, Monitoring load average (sar -q) You can simply check the functionality by using the following command: sar 1 2 ![]() How to check the SAR is working properly?Īfter the installation, you have to check if it’s working properly or not. To check the installed version you can use the switch “V” along with the sar command. > Execute the following command: yum install sysstatįor Ubuntu use the following command: sudo apt-get install sysstat You can use the package managers YUM, APT-GET etc to install Systat. ![]() Sar command – installation How to install and configure SAR (Systat) on Linux server? > sadf: displays data collected by sar in various formats. > pidstat: reports statistics for Linux tasks (processes) > mpstat: reports global and per-processor statistics > iostat: reports CPU utilization and disk I/O statistics > sar: collects and reports system activity information According to the package, it includes the following system performance tools: ![]() In this article I’m explaining the installation steps and the command line usages. We already discussed the “ Load and Memory monitoring using SAR“. By using this command we can analyse the history of different resource usages. Also, System Activity Reporter (SAR) is one of the important tool to monitor Linux servers.This command will helps system administrators to check the server resources status at different time frames. Sar is one of the smart command line utility in Linux.
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