IBM Tivoli Monitoring > Version 6.3 Fix Pack 2 > Administrator's Guide > IBM Tivoli Monitoring Web Services for the SOAP server > Configure Tivoli Monitoring Web Services (SOAP server)
IBM Tivoli Monitoring, Version 6.3 Fix Pack 2
Tuning SOAP transaction performance on AIX systems
SOAP transaction performance can be modified on AIX by deciding whether or not to allow delayed acknowledgments. Tune the performance by following the procedure below.
The default behavior on AIX systems for Transmission Control Protocol (TCP) connections is to allow delayed acknowledgments (Ack packets) by up to 200 ms, and is controlled by the tcp_nodelayack network option. This delay allows the packet to be combined with a response and it minimizes system overhead. If you set tcp_nodelayack to 1, the acknowledgment is immediately returned to the sender. With this setting, slightly more system overhead is generated but results in much higher network transfer performance when the sender is waiting for acknowledgment from the receiver. To find out more about the tcp_nodelayack option, refer to the IBM System p and AIX Information Center.
To set this parameter, complete the following procedure:
Procedure
Access a user account that has root privileges and issue the following command:
no -p -o tcp_nodelayack=1
Results
The following output is typical:
Set tcp_nodelayack to 1 Setting tcp_nodelayack to 1 in nextboot file
This is a dynamic change that takes effect immediately. The -p flag makes the change persistent, so that it is still in effect the next time you start the operating system.
Parent topic:
Configure Tivoli Monitoring Web Services (SOAP server)