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What Kind of Overhead Is Associated with the IVI Engine Calls to Set and Read Attribute Values in an IVI Instrument Driver?

Primary Software: Instrument Drivers/IVI>>IVI Engine Package
Primary Software Version: 2.1
Primary Software Fixed Version: N/A
Secondary Software: N/A

Problem: What kind of overhead is associated with the IVI engine calls to set and read attribute values in an IVI instrument driver?

Solution: The IVI engine attribute calls add a small amount of overhead for each call to the set and read attribute values. However, the time saved by eliminating even the smallest amount of I/O in an application using an IVI driver justifies the small overhead. In the rare cases when state caching does not add any performance to an application, state caching can be disabled.  For more information on state caching, see the KB linked below.

Related Links:

AE KB DIRECT-3U2SYE: What is State Caching in an IVI Driver, and How Is It Different from a Traditional Instrument Driver?

Attachments:

 

Report Date: 04/30/1998
Last Updated: 04/17/2008
Document ID: DIRECT-3U2U4H

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