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Global settings: Difference between revisions
→Graph detail settings
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=== Graph detail settings === | === Graph detail settings === | ||
It is possible to modify the detail level of all graphs in the interface. This settings allow to | It is possible to modify the detail level of all graphs in the interface. This settings allow you to see a more detailed view (with higher time resolution) or to reduce the detail level so more data can be stored on the device. Changing the default values has an impact on the performance and memory usage. Changing a slider to the left increases the detail level of graphs, but increases memory usage and decreases performance. | ||
* Best graph resolution: This option configures how detailed the graph information are shown in the best case (the latest information). The default value is one second which means that a graph sample point represents a second of packet time. You can change the resolution up to 1 millisecond which gives a detailed sub-second representation of the traffic. You can also decide to decrease the resolution which enables the Multimeter to store more data for a longer period of time. | * Best graph resolution: This option configures how detailed the graph information are shown in the best case (the latest information). The default value is one second which means that a graph sample point represents a second of packet time. You can change the resolution up to 1 millisecond which gives a detailed sub-second representation of the traffic. You can also decide to decrease the resolution which enables the Multimeter to store more data for a longer period of time. | ||
* Reduce graph resolution of old data by up to: The resolution of older graph data is automatically reduced to save memory and to allow a longer view into the traffic history. This option allows to change this | * Reduce graph resolution of old data by up to: The resolution of older graph data is automatically reduced to save memory and to allow a longer view into the traffic history. This option allows you to change this behaviour. With a reduction factor of 1/1 no reduction is done at all which means the selected graph resolution is available for the complete time. | ||
:This | :This reduces the time period to see historical data. You can choose to increase the reduction factor to store more data for a longer period. The time printed in parentheses represents the worst-case graph resolution based on the chosen resolution and reduction factor. | ||
Note: Regardless of these settings, the graph values are always converted to represent a value per second (when applicable). For example, the packets per second for IP addresses will always be a value literally per second even if the resolution is larger or smaller than one second. The | Note: Regardless of these settings, the graph values are always converted to represent a value per second (when applicable). For example, the packets per second for IP addresses will always be a value literally per second even if the resolution is larger or smaller than one second. The displayed value is scaled to match this view. Especially with sub-second resolution this might be misleading. | ||
For instance, if there is a network element sending one packet per second and the resolution is set to 100 | For instance, if there is a network element sending one packet per second and the resolution is set to 100 milliseconds, the value might be shown as 10 packets per second as each sample point is scaled to represent an value per second. For a detailed investigation it is recommended to select a specific time interval since the total packet counters shown in all statistics are unscaled and represent the actual values. | ||