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Measures reported by ProcessTest
Application processes can be identified based on specific regular expression patterns. For example, web server processes can be identified by the pattern *httpd*, while DNS server processes can be specified by the pattern *named*. For each such pattern, the ProcessTest reports a variety of CPU and memory statistics. The measures
made by this test are as follows:
| Measurement |
Description |
Measurement
Unit |
Interpretation |
| Num_procs_running |
Number of instances of a process(es) currently executing on a host. |
Number
|
This value indicates if too many or too few processes corresponding to an application are executing on the host. |
| Cpu_util |
Percentage of CPU used by executing process(es) corresponding to the pattern specified. |
Percent
|
A very high value could indicate that processes corresponding to the specified pattern are consuming excessive CPU resources. |
| Memory_util |
For one or more processes corresponding to a specified set of patterns, this value represents the ratio of the resident set size of the processes to the physical memory of the host system, expressed as a percentage. |
Percent |
A sudden increase in memory utilization for a process(es) may be indicative of memory leaks in the application. |
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Note:
The default configurations of the JRun ProcessTest are applicable for JRun server 4.0. However, if you are monitoring a JRun server 3.0, you would have to modify the default configurations.
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