Feature documentation: Difference between revisions

This section contains information about special Network Multimeter features not directly related to measurement of network traffic.

The DB mode (or Database mode) is special operating mode designed for large Network Multimeter systems for high traffic throughput.  

This mode optimizes the internal database management used for measured network data to be able to process a higher amount of network traffic.  

On smaller systems this method introduces an additional overhead so it is only available on selected models.

There is however no difference in the measurement results.  

The only side effect of the DB mode is that results might appear with an additional delay in the web interface.

The DB mode uses separate CPU threads for databases management (instead of combined threads for both packet analysis and database management).

The DB mode is automatically enabled if the system is powerful enough. On some systems the mode can still enabled manually for special use cases.

If the system supports the DB mode, additional configuration settings appear in the [[Settings#Global_settings|Global settings]] section under the “Expert settings” tab.

There are two settings influencing the behavior of the DB mode.

1. System overload and skipped packets.  

If packet drops appear, the packet analyzing threads might be overloaded. This can be checked in the load statistics.  

The current load percentage can be clicked to get detailed information about each system component.