A good source of information about performance is the set of reports in WebSphere MQ Family Category 2 (freeware) SupportPacs, available for download through the WebSphere MQ Web site at WebSphere MQ Web page.
Platform | Maximum process size |
---|---|
Windows |
2 GB |
Solaris |
About 3.75 GB |
HP-UX |
About 3 GB, depending on kernel settings |
AIX (32 bit system) |
2 GB |
z/OS |
2 GB |
/usr/bin/echo '\0100\0\0\0'|dd of=executable_file_name bs=4 count=1 seek=19 conv=notruncThis creates a version of the DataFlowEngine that uses 4 segments (that is, 1GB).
The above technique overrides only the soft limit and not the hard limit. If your broker processes regularly reach these sizes, consider spreading your message flows across more execution groups to reduce the size of each one to be below these limits.
Related concepts
WebSphere MQ Mobile Transport
Related tasks
Using logs
Clearing broker domain log information
Dealing with problems
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