TCP/IP (Parallel Library) Configuration and Management Manual

Managing the Parallel Library TCP/IP Subsystem
HP NonStop TCP/IP (Parallel Library) Configuration and Management Manual—522271-006
4-7
Managing Performance
To manually restart all the TCPMAN subordinate objects, issue the following
commands:
->START MON *
->DELAY 21
Remember to start your TCPSAM processes since they will not be started by
TCPMON or TCPMAN.
Managing Performance
When using Parallel Library TCP/IP, processor utilization measurements of client
applications may tend to exhibit higher numbers because the TCP/IP processing is
now done in the context of the application. In the conventional TCP/IP environment,
this work was attributed to the TCP/IP process. Therefore, MEASURE analysis might
show an increase in processor utilization by the application process.
From a systems perspective, the overall processor utilization should be less than in the
conventional TCP/IP environment because the number of dispatches and context
switches is minimized.
Strategy for Coexistence with Conventional
TCP/IP
To provide the features that are unsupported by Parallel Library TCP/IP, the
conventional TCP/IP environment is present with the restriction that you can’t share the
same IP subnet address (LIF) between environments. Conventional TCP/IP allows a
fallback position as well as providing the unsupported features.
Falling Back to Conventional TCP/IP
1. Follow one of the shutdown procedures in Section 1, Configuration Quick Start.
(See Stopping Parallel Library TCP/IP and Preserving the Current Configuration
on
page 1-19, Stopping Parallel Library TCP/IP and Clearing the Database
on
page 1-24, or Stopping Parallel Library TCP/IP as a Generic Process on
page 1-29.)
2. Change your system configuration database back to the previous, non-Parallel
Library TCP/IP configuration database. The Compaq TSM system-load online help
provides information about how to select a specific configuration file at system
load.
3. Switch over to the existing conventional TCP/IP environment.
Reset the DEFINEs, PARAMs, and/or transport service provider name-set
procedure calls for your applications back to the conventional TCP/IP process
name.