'Valid bit' diaporamas de présentation

Flow Stats Module -- Control

Flow Stats Module -- Control. John DeHart and James Moscola (Original FastPath Design) August 2008. SCR. SCR. SCR. SCR. SCR. SCR. SCR. SRAM. SRAM. SCR. NN. NN. NN. NN. NN. NN. NN. Freelist. SPP V1 LC Egress with 1x10Gb/s Tx. XScale. NAT Miss Scratch Ring. S W I T C

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Computer Architecture Virtual Memory

Computer Architecture Virtual Memory. Dr. Lihu Rappoport. Virtual Memory. Provides the illusion of a large memory Different machines have different amount of physical memory Allows programs to run regardless of actual physical memory size

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Virtual Memory

Virtual Memory. Modern Operating systems can run programs that require more memory than the system has If your CPU is 32-bit, meaning that it has registers that are 32-bits , you can access up to 4G Which means you would need 4Gb of RAM in order to take advantage of this

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Today

Today. Lab 5 out Puts a *lot* together: pointers, debugging, C, etc. 1) Processor sends virtual address to MMU ( memory management unit ) 2-3) MMU fetches PTE from page table in cache/memory 4) MMU sends physical address to cache/memory 5) Cache/memory sends data word to processor.

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PowerPC 74xx Architecture 32-Bit Addressing Modes

PowerPC 74xx Architecture 32-Bit Addressing Modes. Porting Plan 9 to the PowerPC 74xx Architecture Adam Wolbach awolbach@andrew.cmu.edu 15-412 Operating Systems Practicum. Abbreviations. Memory EA Effective Address (32-bit) VA Virtual Address (52-bit) RA Real Address (32-bit)

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Flow Stats Module

Flow Stats Module. James Moscola September 6, 2007. SCR. SCR. SCR. SCR. SCR. SCR. SCR. SCR. NN. NN. NN. NN. NN. NN. NN. SPP V1 LC Egress with 1x10Gb/s Tx. XScale. NAT Miss Scratch Ring. S W I T C H. R B U F. M S F. Rx1. Rx2. Key Extract. Lookup. Hdr Format.

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Slides by: Pranav Senthilnathan ( psenthil )

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Cache Design

Cache Design. Define set associative cache and fully associative cache. Compare and contrast the performance of set associative caches, direct mapped caches, and fully associative caches. Explain the operation of the LRU replacement scheme. Explain the three C model for cache.

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Virtual Memory Additional Slides Slide Source: Bryant@cmu

Virtual Memory Additional Slides Slide Source: Bryant@cmu. Topics Address translation Accelerating translation with TLBs. class12.ppt. VM Address Translation: Hit. Processor. Hardware Addr Trans Mechanism. Main Memory. a. a'. virtual address. part of the on-chip

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The Memory Hierarchy Lecture 31

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Chapter 6 Advanced Counting

Chapter 6 Advanced Counting. 6.1 Recurrence Relations. Recurrence Relations. Definition: An equation that expresses the element an of the sequence {an} in terms of one or more previous terms of the sequence a0,...,an-1.

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