Page 1¶

PERFORMANCE MONITOR¶

ND 211074 Performance Monitor for ND-100/500/5000

graph TD;
    A[MEASUREMENT SERVER] --> B[Measurements output file];
    B --> C[PERFORMANCE MONITOR BOO];
    C --> D[Measurements reports];
    D --> E[NOTIS - RG or NOTIS - BG];
    A -->|RT| C;
    C -->|Background| A;
    C -->|XMSG| A;

     ND
Norsk Data

Page 2¶

PERFORMANCE MONITOR¶

Introduction¶

A computer system can be tuned according to the current use of hardware and software. Measurements made by the Performance Monitor make it easier to retrieve the information needed to make the most out of a computer system.

Performance improvements on a computer installation can be very valuable, both in terms of hardware expenses saved, and in terms of increased user productivity.

Measurements enable you to evaluate software performance in a mixed computer environment. In addition, an understanding of the performance status of an existing system is a prerequisite for sound decisions regarding upgrading of the system.

Performance Monitor consists of a user interface part which controls the Measurement Server. The Measurement Server initiates, runs and stops measurements based on user specifications. It also stores results on files and/or reports them back to the user's terminal.

Product description¶

Measurements are divided into log macros. A log macro consists of one or more log primitives, each representing a measurable resource in the computer.

The Performance Monitor has a menu with six options:

+---------+-------+-------+--------+-------+
| DIAGNOSE| START | STOP  | EDIT   | REPORT| EXIT |
+---------+-------+-------+--------+-------+

With the EDIT command, you modify the parameters for a log macro, i.e., how and when the measuring should be run. The measurements are started by the START command, where you specify which log macro to run. Measuring can be stopped with the STOP command. The REPORT command gives you statistical results from the last or the ongoing run of a log macro.

When the DIAGNOSE command is used, a standard system-defined set of measurements is run. When the user returns to the menu, a simple performance evaluation of the system will be displayed on the screen.

Features¶

The DIAGNOSE option gives you a simple evaluation of the overall system performance, and does not require any technical parameters from the user.
In addition, the supervisor can create detailed patterns for what the Performance Monitor should measure. It is usually possible to see both the total use of each resource and the share used by a specific program. Thus, each supervisor can check the system performance according to the vital needs of a specific installation.

Five log macros are available in the Performance Monitor:

Log Macro	Description
SYSTEM LOG	Measures the use of CPUs, disks and swapping activity.
LOG DEVICES	Measures the use of SINTRAN logical devices, like terminals and printers.
MON-CALLS	Measures the use of monitor calls.
SEGMENT LOG	Measures the use of memory by active segments.
HISTOGRAM	Measures the use of different parts of a logical segment's address area.

Results can be printed on a file. Performance Monitor offers two formats: one where measurements can easily be read directly through an editor like NOTIS-WP, and another suited for further treatment in NOTIS-RG and/or NOTIS-BG. Through the online REPORT option, some statistical information from the last or the ongoing execution of a log macro can be displayed on the screen.

Prerequisites¶

SINTRAN-III version K500
XMSG

Documentation¶

Performance Monitoring, Tuning and Capacity Planning............................... ND-30.083.1 EN

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