Hewlett-packard Development Company, L.p.

David A Plettner

Blaine Douglas Gaither

Dean T Lindsay

Wayne C Ashby

A processor transmits clean castout messages indicating that a cache line is not dirty and is no longer being stored by a lowest level cache of the processor. An external cache receives the clean castout messages and manages cache lines based in part on the clean castout messages.

External cache operation based on clean castout messages

Disclosed is a method and device for creating probe masks. In one embodiment, the mask aids in locating and accessing a pad on a PCB to allow for the measurement a signal at the pad using a probe. The mask is a perforated insulating sheet having holes corresponding to the spacing of at least some of the conductive pads on the PCB, and at least some of the holes are marked to aid in signal measurement. A processing system is used to assist in creating the markings.

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Cupertino, CA, United States of America

David A Plettner