Performance Monitoring

Monitoring server performance provides important insights into the system operation and helps you determine whether your server is working as it should or something requires your attention.

On the Dashboard tab of each server you will find graphs of the processor, memory and bandwidth usage, as well as data on disk utilization.

With these graphs, you can analyze the state of your server at a glance and evaluate if server parameters need tweaking (say, increasing the number of CPU cores or the disk size).

Bandwidth

Here, you can monitor inbound and outbound traffic.

To view the exact value of the indicators at the required moment, move the cursor over the desired point on the chart.

CPU

The CPU graph tells you the percentage of all the processor cores utilization. For each core, the maximum value is 100%, so the maximum value on the graph can be 200%, 400%, and so on, depending on the number of processor cores.

To view the exact value of the indicators at the required moment, move the cursor over the desired point on the chart.

Memory

For RAM, we display two graphs: one displays the amount of memory used by applications, and the second the total amount of memory used, occupied by both applications and the operating system for disk caching.

When you hover your cursor over a point on the graph, you can see the exact value.

By clicking on a specific chart view (Used or Used with cache), you can disable and re-enable displaying it:

Disk

For the disk, we monitor the disk space , as well as the load on the disk.

Disk space

When there is little free space on a disk, it negatively affects the server performance, which is why you should monitor the disk space usage.

The Dashboard displays the current state of the main (system) disk. Data is updated once an hour.

Disk Load

The graph allows you to monitor the read and write operations performance.

Troubleshooting

In some cases, the information on disk space may not be displayed. Typically this is caused by the following reasons:

An error occurred in the data collection tool

The panel will display the error informing you that the stats couldn’t be retrieved. This means that the disk usage data was not recorded or was not recorded correctly. Please contact our support team to fix this problem.

The data can’t be retrieved due to certain server settings

For example, it can happen if the disk has more than one partition or uses LVM (Logical Volume Management). In this case, we will not be able to display the disk space usage statistics, and you will need to monitor the disk space yourself. This can be done, for example, with the df -h command.