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What do the PRTG core memory parameters mean?

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On the PRTG Status page, I can find, amongst many other things, a lot of parameters regarding the core system memory. What do they mean?

core-server memory prtg status system-information

Created on Oct 18, 2016 7:51:07 AM by  Martina Wittmann [Paessler Support]

Last change on Oct 18, 2016 11:06:42 AM by  Martina Wittmann [Paessler Support]



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This article applies to PRTG Network Monitor 19 or later.

PRTG Core System Memory Parameters

Managing the memory of your systems is essential for almost everything. This is why prompt information about your system memory usage is always useful. Instead of searching through your whole system to collect the PRTG-related data you need, PRTG has information ready for you.

Note: The information you get refers to the PRTG core server. If you run a PRTG cluster, the information refers to the cluster node you are currently logged in to.

Path and Parameters

To see the memory usage information, go to Setup | PRTG Status in the PRTG web interface and scroll to Core System Memory.

PRTG is currently showing the following 31 parameters:

#ParameterDescription
1CommittedThe amount of memory that your system commits to the PRTG core.
2AllocatedThe amount of memory that the PRTG core is currently using.
3UnusedThe amount of allocated memory that PRTG is currently not using.
4Free PhysicalThe amount of free memory that is currently available on your core system’s physical memory.
5Total PhysicalThe total amount of memory that is provided by your core system’s physical memory.
6Free PagefileThe amount of free memory that is currently available in your system’s pagefile(s).
7Total PagefileThe total amount of memory of your system’s pagefile(s).
8Free VirtualThe amount of free memory that is available in your core system’s virtual memory.
9Total VirtualThe total amount of memory of your core system’s virtual memory.
10Free EffectiveThe effective amount of free memory on your core system. This corresponds to Free Pagefile.
11Object CountThe number of PRTG-internal data structures, also known as tree nodes, for example, the number of sensors + users + reports.
12BaseInstanceThe amount of memory that is used for the tree node Instance.
13BaseAccessThe amount of memory that is used for the tree node Access Rights.
14BaseHistoryThe amount of memory that is used for the tree node History of Configuration Changes.
15BaseCurrentThe amount of memory that is used for the tree node Current Configuration Information.
16BaseDataThe amount of memory that is used for the tree node Configuration Data.
17BaseChannelThe amount of memory that is used for the tree node Channel Settings.
18BaseTriggerThe amount of memory that is used for the tree node Trigger.
19BaseIDsThe amount of memory that is used for the tree node IDs.
20BaseLookupThe amount of memory that is used for the tree node Sensor Lookups.
21BaseCheckThe amount of memory that is used for the tree node Check Requests.
22BaseDeplistThe amount of memory that is used for the tree node Dependency List.
23DatasetsThe amount of memory that is currently used for datasets, like for graphs.
24StateThe amount of memory that is currently used for user-specific datasets.
25InterfaceThe amount of memory that is currently used for tree node-specific table objects.
26IndexCacheThe amount of memory that is currently used for the index dataset cache that is particularly important in a cluster.
27TreeTotalThe total amount of memory that is used by the PRTG tree.
28DatasetCacheThe amount of memory that is currently used for the dataset cache, in particular regarding historic data. In brackets, you see the number of datasets that are saved in the cache.
29StorageSystemThe amount of memory space that is currently used for the storage system.
30SessionsThe amount of memory that is currently used for sessions. A user can activate more than one session. In brackets, you see the number of currently activated sessions.
31StateObjectsThe number of user-specific state objects that are found in your core system’s memory.

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Created on Oct 18, 2016 8:04:36 AM by  Martina Wittmann [Paessler Support]

Last change on Jul 10, 2019 4:59:48 AM by  Maike Behnsen [Paessler Support]



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Disclaimer: The information in the Paessler Knowledge Base comes without warranty of any kind. Use at your own risk. Before applying any instructions please exercise proper system administrator housekeeping. You must make sure that a proper backup of all your data is available.