System Performance Monitoring - Performance Report Generation Service Request

Introduction:

System performance monitoring is crucial for maintaining a well-optimized and responsive server environment. As a system administrator, you might receive service requests to generate performance reports over specific periods to assess system health. In this blog post, we will explore how to fulfill such service requests using Linux commands such as dnf repolist, dnf install sysstat, systemctl start sysstat, systemctl enable sysstat, vim /etc/crond/sysstat, cat /etc/sysconfig/sysstat, sar, and kbcommit.

Step 1: Check Package Repository

Ensure that the required package "sysstat" is available in your system's package repository. Use the following command to list available repositories:

dnf repolist

Step 2: Install Sysstat

If "sysstat" is not installed, use the package manager to install it. Run the following command:

dnf install sysstat -y

Step 3: Start and Enable Sysstat

Start the "sysstat" service and enable it to run at system boot using the following commands:

systemctl start sysstat

systemctl enable sysstat

Step 4: Configure Sysstat Cron Job

Edit the sysstat cron configuration file using a text editor like vim:

vim /etc/crond/sysstat

Add the following lines to run the sysstat tool every 10 minutes and generate a daily summary of process accounting at 23:55:

*/10 * * * * root /lib64/sa/sa1 1 1

55 23 * * * root /lib64/sa/sa2 -A

Save and exit the editor.

Step 5: Check Sysstat Configuration

To review the sysstat configuration, use the following command:

cat /etc/sysconfig/sysstat

Step 6: Generate Performance Reports

To generate performance reports, use the "sar" command followed by options for specific metrics:

sar 3 6

This command will generate CPU usage reports 6 times at every 3 seconds.

To save sar output to a file, use:

sar 2 5 -o /tmp/data

Use the following command to display the saved sar output:

sar -f /tmp/data

For memory usage report:

sar -r 3 6

Step 7: Monitor Overall Memory Usage

To monitor overall memory usage, including RAM and SWAP, use the "kbcommit" command:

kbcommit &

Conclusion:

Performance report generation is a valuable tool for assessing system health and optimizing server performance. By using Linux commands like dnf install sysstat, systemctl start sysstat, vim /etc/crond/sysstat, cat /etc/sysconfig/sysstat, sar, and kbcommit, administrators can efficiently fulfill service requests for performance reports and ensure a stable and optimized system environment.

Regularly monitor system performance, generate reports, and analyze the data to identify potential bottlenecks and optimize system resources for improved overall efficiency.