Page 1:IDF Spring 2006: The Core Of Intel 3.0
Page 2:Intel's Energy Awakening
Page 3:Quad Cores In Multi-Chip Packages By 2007
Page 4:Core To The Rescue
Page 5:Wide Dynamic Execution
Page 6:Advanced Digital Media Boost
Page 7:Advanced Smart Cache
Page 8:Smart Memory Access
Page 9:Memory Disambiguation
Page 10:Intelligent Power Capability
Page 11:The Memory Controller Question
Page 12:There Is More To Save
Page 13:The Server Challenge
Page 14:Mashups To Drive Mobility
Page 15:Robson NAND Flash Or Hybrid Hard Drives?
Smart Memory Access
After developing a clearly more efficient processing architecture and a powerful L2 cache, Intel wanted to make sure that these units get used as efficiently as possible. Each Core dual-core processor comes with a total of eight prefetcher units: two data and one instruction prefetcher per core and two prefetchers as part of the shared L2 cache. Intel says they can be fine-tuned for each of the Core processor models (Merom/Conroe/Woodcrest) in order to prefetch data differently, whether it is for mobile-, desktop- or server-class usage models.
A prefetcher gets data into a higher level unit using very speculative algorithms. It is designed to provide data that is very likely to be requested soon, which can reduce latency and increase efficiency. The memory prefetchers constantly have a look at memory access patterns, trying to predict if there is something they could move into the L2 cache - just in case that data could be requested next. At the same time, prefetchers are highly tuned to watch for demand traffic, which can be a sequential data flow. In this case, prefetched caching would not make much sense.
- IDF Spring 2006: The Core Of Intel 3.0
- Intel's Energy Awakening
- Quad Cores In Multi-Chip Packages By 2007
- Core To The Rescue
- Wide Dynamic Execution
- Advanced Digital Media Boost
- Advanced Smart Cache
- Smart Memory Access
- Memory Disambiguation
- Intelligent Power Capability
- The Memory Controller Question
- There Is More To Save
- The Server Challenge
- Mashups To Drive Mobility
- Robson NAND Flash Or Hybrid Hard Drives?