[Gems-users] PerfectCacheMemory in MOESI_CMP_directory

[Huan Fang <huanf@xxxxxx>]

Hello everyone,

I know there is DirEntry which is a PerfectCacheMemory in 
MOESI_CMP_directory protocol. After having a look at the 
PerfectCacheMemory.h, I found the ::cacheAvail returns always true and 
::cacheProbe is not implemented. Does that mean it's an *infinitely* 
large cache?
I am curious about the intention to use this structure in MOESI, because 
it's not present in MSI_MOSI protocol. Maybe it's intented to use this 
simple structure for improving performance, but is it meaningful for 
study if it has infinite size? Please point out if I have any 
misunderstandings.
Best Regards,
Huan