Evaluation of a "Stall" Cache: An Efficient Restricted On-chip Instruction Cache
Klaus Erik Schauser and Krste Asanović and David A. Patterson and Edward H. Frank
EECS Department, University of California, Berkeley
Technical Report No. UCB/CSD-91-641
, 1991
http://www2.eecs.berkeley.edu/Pubs/TechRpts/1991/CSD-91-641.pdf
In this report we compare the cost and performance of a new kind of restricted instruction cache architecture -- the stall cache -- against several other conventional cache architectures. The stall cache minimizes the size of an on-chip instruction cache by caching only those instructions whose instruction fetch phase collides with the memory access phase of a preceding load or store instruction. <p>Many existing machines provide a single cycle external cache memory. Our results show that, under this assumption, the stall cache always outperforms an equivalent sized on-chip instruction cache, reducing external memory access stalls by approximately 10%. In addition we present results for a system using an on-chip data cache, and for one with a double width data bus and short instruction prefetch buffer.
BibTeX citation:
@techreport{Schauser:CSD-91-641, Author= {Schauser, Klaus Erik and Asanović, Krste and Patterson, David A. and Frank, Edward H.}, Title= {Evaluation of a "Stall" Cache: An Efficient Restricted On-chip Instruction Cache}, Year= {1991}, Month= {Jul}, Url= {http://www2.eecs.berkeley.edu/Pubs/TechRpts/1991/6391.html}, Number= {UCB/CSD-91-641}, Abstract= {In this report we compare the cost and performance of a new kind of restricted instruction cache architecture -- the stall cache -- against several other conventional cache architectures. The stall cache minimizes the size of an on-chip instruction cache by caching only those instructions whose instruction fetch phase collides with the memory access phase of a preceding load or store instruction. <p>Many existing machines provide a single cycle external cache memory. Our results show that, under this assumption, the stall cache always outperforms an equivalent sized on-chip instruction cache, reducing external memory access stalls by approximately 10%. In addition we present results for a system using an on-chip data cache, and for one with a double width data bus and short instruction prefetch buffer.}, }
EndNote citation:
%0 Report %A Schauser, Klaus Erik %A Asanović, Krste %A Patterson, David A. %A Frank, Edward H. %T Evaluation of a "Stall" Cache: An Efficient Restricted On-chip Instruction Cache %I EECS Department, University of California, Berkeley %D 1991 %@ UCB/CSD-91-641 %U http://www2.eecs.berkeley.edu/Pubs/TechRpts/1991/6391.html %F Schauser:CSD-91-641