TS/MP System Management Manual (H06.05+, J06.03+)

HP NonStop TS/MP System Management Manual—541819-007
7-1
7
Tuning Your System by Using
Statistics
This section describes statistics collected for server processes. These statistics are
collected when you run the STATS SERVER command. See the description of the
STATS SERVER Command.
This section is divided into two parts:
•
The first part describes server process performance statistics that the LINKMON
process or ACS subsystem processes, and the TCP collect.
•
The second part describes server process performance statistics collected only by
the TCPs. Because TCPs are provided by the Pathway/iTS product, you can
display these server statistics only if your environment includes the Pathway/iTS
product.
You can use the statistics generated by transaction processing functions in the
PATHMON environment to detect bottlenecks within the LINKMON process or the ACS
subsystem processes or—if you have Pathway/iTS—the TCP. Based on careful
analysis of these statistics, you can reconfigure your PATHMON environment to
eliminate some performance degradations.
Other factors affecting system performance are not represented in these statistics.
Such factors generally involve contention for system resources, for example, the ability
of the PATHMON process to grant links promptly
Statistics produced by the NonStop operating system can shed light on the
performance of these types of functions. For more information about statistics
produced by the operating system, see the Measure User’s Guide and the Measure
Reference Manual.
Server Statistics Collected by the LINKMON
Process or ACS subsystem processes, and
the TCP
LINKMON processes or ACS subsystem processes, and TCPs gather statistics for a
single server class or for multiple server classes. The statistics are gathered by:
•
LINKMON processes or ACS subsystem processes with links to a server process
in the class
•
TCPs that open a server process in the class—but only if these TCPs are
configured with the STATS parameter set to ON