Fujitsu SPARC64 V Manual Do Utilizador

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Release 1.0, 1 July 2002
F. Chapter 8
Memory Models
43
corresponding locations in all instruction caches; references to any instruction cache 
cause corresponding modified data to be flushed and corresponding unmodified 
data to be invalidated from all data caches. The flush operation is still operative in 
SPARC64 V, however.
Since the 
FLUSH
 instruction synchronizes the processor, the total latency varies 
depending on the situation in SPARC64 V. Assuming all prior instructions are 
completed, the latency of 
FLUSH
 is 18 CPU cycles.