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How to avoid address translation during indexing of the cache to reduce hit time?

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|Deva|neenu2|metaphor|Nikhil-bharadwaj|

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PID tags
Increase the width of the cache address tags to include a process ID (instead of purging the cache.)
 The current process PID is specified by a register.
 If the PID does not match, it is not a hit even if the address matches.

13priya

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