'Hit time' presentation slideshows

OMSE 510: Computing Foundations 3: Caches, Assembly, CPU Overview

OMSE 510: Computing Foundations 3: Caches, Assembly, CPU Overview. Chris Gilmore <grimjack@cs.pdx.edu> Portland State University/OMSE. Today. Caches DLX Assembly CPU Overview. System Bus. Computer System (Idealized). Disk. Memory. CPU. Disk Controller. Processor. Input. Control.

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Big Idea

CS61C : Machine Structures Lecture 6.2.2 Interrupts 2004-07-29 Kurt Meinz inst.eecs.berkeley.edu/~cs61c. Big Idea. How to choose between associativity, block size, replacement policy? Design against a performance model Minimize: Average Memory Access Time

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CS252 Graduate Computer Architecture Lecture 17 Caches and Memory Systems

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Goals

Goals. To set up the mathematics and algorithms to perform ray tracing. To create highly realistic images, which include transparency and refraction of light. To develop tools for working with solid 3D texture and bitmapped images.

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EECS 252 Graduate Computer Architecture Lecture 4 Review Continued: Caching & VM Exceptions January 30 th , 2012

EECS 252 Graduate Computer Architecture Lecture 4 Review Continued: Caching & VM Exceptions January 30 th , 2012. John Kubiatowicz Electrical Engineering and Computer Sciences University of California, Berkeley http://www.eecs.berkeley.edu/~kubitron/cs252. Review: Pipelining.

625 views • 50 slides

COMP 206 Computer Architecture and Implementation Unit 8b: Cache Misses

COMP 206 Computer Architecture and Implementation Unit 8b: Cache Misses. Siddhartha Chatterjee Fall 2000. Cache Performance. Average Access Time. Miss Rate. Miss Penalty. Exploits spatial locality. Increased Miss Penalty & Miss Rate. Fewer blocks: compromises temporal locality.

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Review

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CS136, Advanced Architecture

CS136, Advanced Architecture. Cache and Memory Performance. Outline. 11 Advanced Cache Optimizations Memory Technology and DRAM optimizations. Why More on Memory Hierarchy?. Processor-Memory Performance Gap Growing. Review: 6 Basic Cache Optimizations. Reducing hit time

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Cache Improvements

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Cache Memory

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Cache Memory

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Cache Memory

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Cache Memory

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CS252 Graduate Computer Architecture Lecture 16 Caches II: 3 Cs and 7 ways to reduce misses

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CS252 Graduate Computer Architecture Lecture 3 Caches and Memory Systems I

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Caches

Caches. Titov Alexander 13.03.2010. Computer. memory. control. output. datapath. processor. input. Classic components of a computer. The city example (spatial locality). Factory. Shop store. Your shop. Large storehouse. Storehouse. The delay is decreased, but the cost is increased.

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Adapted from UCB CS252 S01, Revised by Zhao Zhang in IASTATE CPRE 585, 2004

Lecture 14: Hardware Approaches for Cache Optimizations. Cache performance metrics, reduce miss rates, improve hit time, reduce miss penalty. Adapted from UCB CS252 S01, Revised by Zhao Zhang in IASTATE CPRE 585, 2004. Adapted from UCB CS252 S01. Cache Performance Metrics.

282 views • 21 slides

Main Memory Supporting Caches

Main Memory Supporting Caches. Use DRAMs for main memory Fixed width (e.g., 1 word) Connected by fixed-width clocked bus Bus clock is typically slower than CPU clock Example cache block read 1 bus cycle for address transfer 15 bus cycles per DRAM access 1 bus cycle per data transfer

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Memory System Performance

Memory System Performance. What affects memory performance?. Hit Time : Time to send data from the cache to the CPU. Miss Penalty : Time to copy data from memory into the cache. Miss Rate : Percentage of memory accesses to locations outside cache. Average Memory Access Time (AMAT).

252 views • 14 slides