Computer architecture: a quantitative approach
Computer architecture: a quantitative approach
The SPARC architecture manual: version 8
The SPARC architecture manual: version 8
MIPS RISC architectures
A simulation based study of TLB performance
ISCA '92 Proceedings of the 19th annual international symposium on Computer architecture
Tradeoffs in supporting two page sizes
ISCA '92 Proceedings of the 19th annual international symposium on Computer architecture
Communications of the ACM
Surpassing the TLB performance of superpages with less operating system support
ASPLOS VI Proceedings of the sixth international conference on Architectural support for programming languages and operating systems
The SPLASH-2 programs: characterization and methodological considerations
ISCA '95 Proceedings of the 22nd annual international symposium on Computer architecture
Increasing TLB reach using superpages backed by shadow memory
Proceedings of the 25th annual international symposium on Computer architecture
ACM Computing Surveys (CSUR)
ACM Computing Surveys (CSUR)
PowerPC System Architecture
Complete Computer System Simulation: The SimOS Approach
IEEE Parallel & Distributed Technology: Systems & Technology
Microprocessor Memory Management Units
IEEE Micro
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While superpage is an efficient solution to increase TLB reach, its limited flexibility for address mapping is still a hard issue. Our proposed mechanism has been developed for taking advantage of two previous approaches which resolve the issue partially: the partial-subblock TLB and the shadow memory. Through integration of them, our mechanism enjoys various benefits inherited from the both sides. By adopting Memory Controller TLB (MTLB) from the shadow memory, it allows superpages to be composed of arbitrary physical pages. The entry structure of the partial-subblock TLB applied for the processor TLB enables all invalid address mappings to be identified inside CPU, which reduces the overhead of handling invalid mappings. In addition, cache flushing which is required when a mapping of shadow address to physical address is destroyed (e.g. due to paging) can be replaced just by resetting the corresponding valid bit in the processor TLB. At last, the per-base-page reference bits in the processor TLB make the page replacement policy of the operating system more efficient.In simulation with six benchmarks, our mechanism generates only 27% of TLB misses compared to the single-page-size TLB. With a detailed analysis, it is shown to be evident that the efficiency of our mechanism is magnified in real computing environment where multitasking and applications of large sizes are ordinary cases.