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This processing and reporting mode optimizes the following components:
► Indexes for each table
► Event processing tables for the server for quick insert/update/delete
► Dashboard reporting tables for common dashboard-related queries
We suggest that you enable DMS in any production scenario.
4.11 Enable browser caching
Business Process Manager clients rely heavily on AJAX and JavaScript code; their
performance depends on the browser’s efficiency in processing this code. To improve
Business Process Manager client-response times you might need to adjust both HTTP server
and client browser settings. This section covers ensuring that browser caching is enabled.
HTTP server caching is addressed in 4.12, “Tuning the HTTP server” on page 79.
4.11.1 Ensuring browser cache is enabled in Internet Explorer
By default, Business Process Manager allows the browser to cache static information such as
style sheets and JavaScript files for 24 hours. However, if the browser is configured in a way
that does not cache data, the same resources are loaded repeatedly, resulting in long
page-load times.
To enable caching, use the following steps:
1. Click Tools Internet Options General Browsing History.
2. Set the cache size, indicated by Disk space to use, to at least 50 MB.
Ensure browser cache is not cleared on logout
Modern browsers have options to clear the cache on exit; make sure that this setting is not
enabled.
Use the following procedure to disable cache clearing:
1. Click Tools Internet Options.
2. Under the General tab, make sure the Delete browser history on exit check box is
cleared.
3. Click the Advanced tab and make sure the Empty Temporary Internet Files folder
when browser is closed check box is cleared. Click OK to save the settings.
4. Restart your browser to make sure that the changes have taken effect.
4.11.2 Ensuring browser cache is enabled in Firefox
By default, Business Process Manager allows the browser to cache static information such as
style sheets and JavaScript files for 24 hours. However, if the browser is configured in a way
that does not cache data, the same resources are loaded repeatedly, resulting in long
page-load times.
To enable caching, use the following steps:
1. Click Tools Options Advanced Network Offline Storage.
2. Set the offline storage to at least 50 MB.
78 IBM Business Process Manager V8.0 Performance Tuning and Best Practices