December 2011
Intermediate to advanced
426 pages
13h 30m
English
book
Power Systems Enterprise Servers with PowerVM Virtualization and RAS
by Dino Quintero, JinHoon Baek, Guillermo Diez, Hassan Elsetohy, Debra Francis, Bing He, Rajesh Jeyapaul, Anil Kalavakolanu, Tejaswini Kaujalgi, David Kgabo, Ricardo Puig, Vani Ramagiri
Content preview from Power Systems Enterprise Servers with PowerVM Virtualization and RAS
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Chapter 7. POWER7 Enterprise Server performance considerations 253
7.2.2 Processor eDRAM technology
In many cases, IBM has been innovative in order to achieve the required levels of throughput
and bandwidth. Areas of innovation for the POWER7 processor and POWER7
processor-based systems include (but are not limited to) these areas:
On-chip L3 cache implemented in embedded dynamic random access memory (eDRAM)
Cache hierarchy and component innovation
Advances in the memory subsystem
Advances in off-chip signalling
Exploitation of long-term investment in coherence innovation
The innovation of using eDRAM on the POWER7 processor chip is significant for several
reasons:
Latency improvement: A six-to-one latency improvement occurs by moving ...
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