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http://bizsupport2.austin.hp.com/bc/docs/support/SupportManual/c02697864/
c02697864.pdf
In order to analyze the data using -agentlib:hprof and –Xeprof, you can use
HPJmeter. For more information about this tool, refer to the following Web site:
http://www.hp.com/go/hpjmeter
Introduction to the IBM
®
JVM Performance and Tuning
Guidelines
The IBM
®
Java
™
Virtual Machine (JVM) contains a number of private and
proprietary technologies that distinguish it from other implementations of JVM.
For instance, the IBM JVM uses mixed-mode interpretation (MMI). When the MMI
detects that bytecodes have been interpreted multiple times, it invokes a
just-in-time (JIT) compiler to compile those bytecodes to native instructions. Due to
the significant performance benefits, the JIT and MMI are enabled by default. The
JVM performance degrades considerably when JIT is disabled. For more
information about the JIT compiler and MMI, refer to the IBM JDK 6.0: Java
Diagnostics Guide.
Refer to the Sterling B2B Integrator System Requirements documentation for the
supported operating system and JVM combination.
This topic describes the processes involved in tuning, monitoring, and performing
basic troubleshooting when deploying the Sterling B2B Integrator using the IBM
JVM.
For information about using the tuning wizard to set the IBM JVM parameters, see
“Edit Performance Configuration Settings” on page 123.
Before You Begin Tuning Your IBM
®
JVM
Using the Performance Tuning Utility, Sterling B2B Integrator calculates the
recommended settings based on the number of cores and the amount of physical
memory that is being made available to Sterling B2B Integrator.
The resulting performance properties are stored in the tuning.properties file in the
install_dir/properties directory. The formulae used to calculate these setting can be
found in the tuningFormulas.properties file in the install_dir/properties directory.
The calculated values should be used as a guideline. Further tuning may be
necessary to attain a well-tuned system. If you are still unable to attain a
well-tuned system, you may want to engage IBM Professional Services. Contact
your Sales Representative for more information about this.
IBM
®
JVM Default Parameters for Sterling B2B Integrator
The follow table provides the IBM
®
JVM parameters and the default values you
should use when configuring the system.
Note: For information about using the tuning wizard to set the IBM JVM
parameters, see “Edit Performance Configuration Settings” on page 123.
78 Sterling B2B Integrator: Performance Management