Performance Overview Monitor in CCMS

You can use the Performance Overview monitor to obtain the most important values about the performance of the application servers of your system and to identify possible causes for performance problems. The various subtrees are taken from the following monitors of the SAP CCMS Monitor Templates monitor set:

· Buffers

· Dialog Overview

· Entire System

· Operating System

This graphic is explained in the accompanying text

Features

The monitor contains the following monitoring tree elements (MTEs):

MTE Name
(MTE Class)

Meaning

Additional Information

ResponseTime
(R3DialogResponseTime)

Response time of the dialog service

Dialog Overview Monitor

UsersLoggedIn
(R3UsersLoggedIn)

Number of users logged on

QueueTime
(R3DialogQueueTime)

Average time in the dispatcher wait queue

Entire System Monitor

Load+GenTime
(R3DialogLoad+GenTime)

Average load and generation time of CUA objects

DBRequestTime
(R3DialogDbReqTime)

Average time for processing logical database requests

R3RollUsed
(R3RollUsed)

Usage of the roll area as a percentage.

The roll area is a memory area of a fixed, configurable size that belongs to a work process; it contains user-specific data and is the first memory that a work process obtains.

Structure linkSAP Roll Area

EsAct
(R3MemMgmtEsAct)

Utilization of the extended memory as a percentage.

The extended memory contains the largest part of the user context. The page management of this memory is performed not by the operating system, but directly by the SAP system.

Structure linkSAP Extended Memory

HeapAct
(R3MemMgmtHeapAct)

Utilization of the private memory as a percentage.

A work process is only assigned private memory if the roll area and extended memory are occupied; the work process is then reserved for the current user context until the end of the transaction (PRIV mode). Performance problems occur if too many dialog work processes are running in PRIV mode.

Structure linkPrivate Memory

Program\Swap
(R3BufferProgramSwap)

Swap rate of the program buffer

Structure linkSAP Buffer

CPU_Utilization
(CPU_Utilization)

Average utilization of the CPU on a host as a percentage

Operating System Monitor

Page_In
(Page_In)

Average number of page-ins per second

Page_Out
(Page_Out)

Average number of page-outs per second

Activities

To start the monitor, follow the procedure below:

...

1. Start the Alert Monitor using transaction RZ20 or choose CCMS ® Control/Monitoring ® Alert Monitor.

2. On the CCMS Monitor Sets screen, expand the SAP CCMS Monitor Templates set.

3. Start the Performance Overview monitor from the list by double clicking it.

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