Memory usage statistics and restarts

NAM Server ► Tools ► Diagnostics ► NAM Server memory and restarts

The Memory usage statistics and restarts report is a summary of memory usage. It is designed for NAM Server diagnostic purposes only.

Memory status dimensions

Data file processing status (id: taskStatus)

It may take on two values: "true" or "false", and it shows whether or not the available memory test was performed after the sample was processed.

Data source (id: dataProd)

The name of the data source in case you have configured a number of associated report servers to be used as data sources on the DMI screen.

Date file time (id: smplTime)

Time stamp of the performance data file.

Time (id: begT)

The time stamp of the data presented on the report.

Used GC name (id: gcName)

Used GC name

Memory status metrics

Free memory (after GC)

Free memory (after GC)

Free memory percentage (after GC)

Free memory percentage (after GC)

Free system memory

Free system memory

Free system memory (min)

Free system memory, expressed in bytes.

Free system memory percentage

The percentage of free memory, calculated based on comparison to the Maximum memory, that is the maximum amount of memory that the Java virtual machine will attempt to use. Value should be very close to the -XmX JVM parameter, but almost never equal.

Free system memory percentage (min)

The minimum percentage of free memory, calculated based on comparison to the Maximum memory, that is the maximum amount of memory that the Java virtual machine will attempt to use. Value should be very close to the -XmX JVM parameter, but almost never equal.

GC running time

GC running time

GC running time (max)

GC running time (max)

GC Runs

GC Runs

Maximum JVM memory (Xmx)

The maximum amount of memory that the Java virtual machine will attempt to use. Value should be very close to the -XmX JVM parameter, but almost never equal.

Memory alert (max)

Threshold alert for percentage memory availability.

Memory allocated

Memory allocated

Memory freed

Memory freed

Memory threshold

By default, it is set to 80% of the server memory. If the free memory level is under 20%, report cache clearing is performed.

Number of aggregated sessions

The number of sessions that do not include user information. There are three types of higher-level aggregated data: aggregates based on software service - location information, software service - server information and software service - interface information.

Number of raw sessions

The number of non-aggregated sessions that include user information.

Number of sessions

The total number of sessions, both raw and aggregated.

Process memory resident

The average percentage amount of physical memory used by the process.

Process memory usage

The average amount of memory used by a server process, expressed in bytes.

Restarts

The number of server restarts observed.

Sessions limit

The value of sessions limit.

Sessions limit exceeded

The number of time, sessions limit was exceeded.

Total heap memory

The average memory available for future use, expressed in bytes.

Total heap memory (max)

The maximum total memory available for future use, expressed in bytes.

Total system memory (max)

The maximum of total memory (RAM).

Used heap memory

The amount of the average used memory, calculated in comparison to the maximum memory, that is the maximum amount of memory that the Java virtual machine will attempt to use. Value should be very close to the -XmX JVM parameter, but almost never equal.

Used heap memory (after GC, 90th percentile)

Used heap memory (after GC, 90th percentile)

Used heap memory (after GC, median)

Used heap memory (after GC, median)

Used heap memory (after GC)

Used heap memory (after GC)

Used heap memory (before GC)

Used heap memory (before GC)

Used heap memory (max)

The maximum of memory used by NAM Server and/or ADS data structures. The counter is related the Maximum memory, that is the maximum amount of memory that the Java virtual machine will attempt to use. Value should be very close to the -XmX JVM parameter, but almost never equal.

Used heap memory percentage

The percentage of the average used memory, calculated based on comparison to the Maximum memory, that is the maximum amount of memory that the Java virtual machine will attempt to use. Value should be very close to the -XmX JVM parameter, but almost never equal.

Used heap memory percentage (max)

The maximum percentage of the used memory, calculated based on comparison to the Maximum memory, that is the maximum amount of memory that the Java virtual machine will attempt to use. Value should be very close to the -XmX JVM parameter, but almost never equal.