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| Content Provider | ACM Digital Library |
|---|---|
| Author | Kong, Shing Patterson, David A. Talluri, Madhusudhan Hill, Mark D. |
| Abstract | As computer system main memories get larger and processor cycles-per-instruction (CPIs) get smaller, the time spent in handling translation lookaside buffer (TLB) misses could become a performance bottleneck. We explore relieving this bottleneck by (a) increasing the page size and (b) supporting two page sizes.We discuss how to build a TLB to support two page sizes and examine both alternatives experimentally with a dozen uniprogrammed, user-mode traces for the SPARC architecture. Our results show that increasing the page size to 32KB causes both a significant increase in average working set size (e.g., 60%) and a significant reduction in the TLB's contribution to CPI, CPITLB, (namely a factor of eight) compared to using 4KB pages. Results for using two page sizes, 4KB and 32KB pages, on the other hand, show a small increase in working set size (about 10%) and variable decrease in CPITLB, (from negligible to as good as found with the 32KB page size). CPITLB when using two page sizes is consistently better for fully associative TLBs than for set-associative ones.Our results are preliminary, however, since (a) our traces do not include multiprogramming or operating system behavior, and (b) our page-size assignment policy may not reflect a real operating system's policy. |
| Starting Page | 415 |
| Ending Page | 424 |
| Page Count | 10 |
| File Format | |
| ISBN | 0897915097 |
| DOI | 10.1145/139669.140406 |
| Language | English |
| Publisher | Association for Computing Machinery (ACM) |
| Publisher Date | 1992-05-19 |
| Publisher Place | New York |
| Access Restriction | Subscribed |
| Content Type | Text |
| Resource Type | Article |
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