Oracle International Corporation

Sun Microsystems, Inc.

Donald B Kay

Andrew E Phelps

Daniel P Drogichen

Narendra Chakravarthy Nandam

A method for identifying, based on instructions stored externally to a processor containing a cache memory, a functional portion of the cache memory, then loading cache test code into the functional portion of the cache memory from an external source, and executing the cache test code stored in the cache memory to test the cache memory on a cache-line-granular basis and store fault information.

Cache self-testing technique to reduce cache test time

A method and apparatus for dynamically reconfiguring a computing system are disclosed. The method comprises detecting a predetermined condition triggering a reconfiguration of the computing system; and dynamically reconfiguring a signal path affected by the condition from a first mode to a second mode responsive to detecting the condition. The apparatus is a computing system, comprising: a plurality of I/O switches, a crossbar switch, a plurality of signal paths; and a system controller. Each signal path is defined by an I/O switch and the crossbar switch. The system controller is capable of detecting a predetermined condition triggering a reconfiguration and dynamically reconfiguring at least one of the signal paths affected by the condition from a first mode to a second mode.

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San Diego, CA, United States of America

Donald B Kay