Performance

DEVise is designed to handle large amounts of data from the ground up. The following discussion assumes that the reader is already familiar with the model of visualization. DEVise addresses performance as follows:

I/O

Minimizing the amount of accesses to disk is the goal of improving I/O performance. It is not practical to rely on the virtual memory of a workstation because thrashing readily occurs when the amount of data is large. DEVise addresses I/O performance as follows:

Mapping

Mapping performance is improved as follows:

Drawing GData

Drawing performance is improved as follows:

User Interface

The user interface is designed to minimize the user response time:

Program Design

The implementation is structured for performance as follows:
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