COGNOS Business Intelligence Series 7

Chapter 3: Control Processes
3. Edit or add the following line substituting KB with the cache size you want to allocate to each
process.
ReadCacheSize=KB
For example, the following line allocates 16,384 KB to each process:
ReadCacheSize=16384
4. Save and close the file.
Tip: You can also use Configuration Manager to set the process cache size.
Step for UNIX
• Set the environment variable PPDS_READ_MEMORY to the size you want used for each
cache.
For example, the following Bourne shell command allocates 32 MB:
PPDS_READ_MEMORY=32768
export PPDS_READ_MEMORY
Notes
• You shouldn’t set the cache size to more than 64 MB, because it may take the system more
processing resources to manage the cache than it would to retrieve the data from disk again.
• For a new cache size setting to take effect, you must restart each cube that is running. You can
either stop and then enable the cubes (p. 34), or restart the PowerPlay server altogether
(p. 15).
Switch Between the Enhanced and Generic Interface
To improve performance, you can switch between the Enhanced and Generic interface for folders
containing cubes, or for the entire server.
• Consider using the Enhanced User Interface (p. 114), which supports drag and drop and
right-mouse clicking.
The Enhanced User Interface can be viewed using higher level browsers and does not rely on
cascading drop-down menus or menu-level filtering.
• Consider using the Generic interface to improve user response times, especially for low
network bandwidth environments, such as dial up lines.
Generic HTML is the default for Web browsers that do not support enhanced Java-based Web
pages.
Steps to Use the Enhanced User Interface
1. In PowerPlay Enterprise - Server Administration, select a cube, folder, or server.
2. From the Edit menu, click Properties, and then click the Cube Settings tab.
3. Expand Display (Web).
4. In the Type box, select Enhanced.
5. Click OK.
Steps to Use the Generic HTML User Interface
1. In PowerPlay Enterprise - Server Administration, select a cube, folder, or server.
2. From the Edit menu, click Properties, and then click the Cube Settings tab.
3. Expand Display (Web).
4. In the Type box, select Generic.
5. Click OK.
36 Cognos PowerPlay (R)