Preselecting E/M line replacement technique for a snoop filter

Details Preselecting E/M line replacement technique for a snoop filter Preselecting E/M line replacement technique for a snoop filter

2008-06-03

2008-06-03

Verbrugge, Kevin (Department: 2189)

Electrical computers and digital processing systems: memory

Storage accessing and control

Hierarchical memories

C711S133000

Reexamination Certificate

active

07383398

ABSTRACT:
A snoop filter maintains data coherency information for multiple caches in a multi-processor system. When a new request for a memory line arrives, an entry of the snoop filter is selected for replacement if there is no available slot in the snoop filter to accommodate the new request. The selected entry is among the entries predicted to be short-lived based on a coherency state. An invalidation message is sent to the one of the caches with which the selected entry is associated.

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