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HP-UX System Administrator's Guide: Overview: HP-UX 11i Version 3 > Chapter 4 System Administration Tools

Performance Monitoring Tools


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There are many tools available to help you monitor performance of HP-UX based servers, networks, and applications. Some of these tools are included with HP-UX, some are downloadable from hp.com, and some are commercial products from HP or other companies. This section discusses a few of these tools.

Tools for Monitoring the Performance of a Server

There are several applications you can use to monitor the performance of an HP-UX based server:

HP Caliper

The primary purpose of HP Caliper is profiling individual applications, however Caliper is also capable of displaying overall system performance information. HP Caliper can be downloaded from: http://www.hp.com/go/caliper

HP Caliper is also supported on versions of Linux for HP Integrity servers.

NOTE: HP Caliper is available only for HP Integrity Servers. For HP 9000 servers, consider using Prospect, a performance monitoring tool. See http://www.hp.com/go/prospect.
HP GlancePlus

GlancePlus is a full featured operating-system-wide performance monitoring package that provides immediate performance information about your server. It lets you easily examine system activities, identify and resolve performance bottlenecks, and tune your system for more efficient operation. GlancePlus is a part of the HP OpenView Suite of products. Information about how to obtain GlancePlus and detailed information about its features is available at: http://www.hp.com/go/openview.

HP GlancePlus supports a variety of operating systems including HP-UX and Linux.

The following HP-UX commands can also help you gather statistics about how the resources of your system are being used:


iostat iteratively reports I/O statistics for each active disk on the system.


sar, the system activity reporter, samples and reports on cumulative activity counters in the operating system or from a previously recorded file. These values can give you a rough idea of where the HP-UX is spending its time.


Supplied as part of HP-UX, top is a utility that lists all of the processes currently running on a server, ordered by their processing core usage. Those processes listed first in the top output are consuming the most processing time. top also shows global system load factors.


The vmstat command reports certain statistics kept about process, virtual memory, trap, and CPU activity. It also can clear the accumulators in the kernel sum structure.

Tools for Monitoring the Performance of a Network

Monitoring the performance of a network can be an involved process involving many different variables. For sophisticated network troubleshooting and performance monitoring, HP offers the OpenView Network Node Manager. For information about the Network Node Manager’s features and capabilities, and how to acquire it see:


If your needs are simply to verify communications between two computers, you can use the ping command which will send packets from one computer to another and time how long it takes to receive a reply. You can do some basic tuning of network performance by tweaking various network settings and running ping to see if the response time improves or worsens. For example:

Example 4-1 Testing network performance using ping

To test a network connection between two systems called “thissystem” and “thatsystem”, from a local command prompt on “thissystem” enter the command:

/usr/sbin/ping thatsystem

PING thatsystem.xxx.yyy.com: 64 byte packets 64 bytes from icmp_seq=0. time=1. ms 64 bytes from icmp_seq=1. time=0. ms 64 bytes from icmp_seq=2. time=0. ms 64 bytes from icmp_seq=3. time=0. ms

Ping will keep sending/receiving packets until you stop it by using the interrupt character (usually CTRL-C). It will then terminate the packet sending and report the final performance statistics:

----thatsystem.xxx.yyy.com PING Statistics---- 4 packets transmitted, 4 packets received, 0% packet loss round-trip (ms) min/avg/max = 0/0/1

Tools for Monitoring the Performance of Applications

Applications running on HP Integrity Servers can be extensively profiled using the HP Caliper performance monitoring tool (Caliper). While Caliper is capable of monitoring whole-server performance, it is primarily an application profiling tool.

Caliper makes extensive use of hardware features on HP Integrity Servers and can run on both HP-UX 11i and Linux operating systems.

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