Hi everyone,
Can somebody please tell me the difference between mostly_excl and strictly-exclusive?
I know that if a cache is mostly_excl of caches above, (1)it will not allocate block when recvTimingResp and then respond a miss request from the cache above.
And I also know that the(2) cache above the mostly_excl needs to set writeback_clean so that when a blk gets evicted from the upper cache, the mostly_excl lower cache can store the evicted blk.
Besides, (3)according to the access() function, I notice that a mostly_excl cache will invalidate corresponding cache blk when respond a blk that is in this level but not in the above cache, by calling maintainClusivity.
The problem is, it seems like a mostly_excl cache behaves the same as a strictly-exclusive cache according to (1) to (3).
Can anyone shed any light on it?
Best,
Yongjie
Hi everyone,
Can somebody please tell me the difference between mostly_excl and strictly-exclusive?
I know that if a cache is mostly_excl of caches above, (1)it will not allocate block when recvTimingResp and then respond a miss request from the cache above.
And I also know that the(2) cache above the mostly_excl needs to set writeback_clean so that when a blk gets evicted from the upper cache, the mostly_excl lower cache can store the evicted blk.
Besides, (3)according to the access() function, I notice that a mostly_excl cache will invalidate corresponding cache blk when respond a blk that is in this level but not in the above cache, by calling maintainClusivity.
The problem is, it seems like a mostly_excl cache behaves the same as a strictly-exclusive cache according to (1) to (3).
Can anyone shed any light on it?
Best,
Yongjie