PPT-Memory Management Units for Instruction and Data Cache

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for OR1200 CPU Core Arijit Banerjee ASICSOC Class 2014 Dated 05092014 Motivation 2 ASICsSoCs have billions of transistors Impossible to design everything manually

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Memory Management Units for Instruction and Data Cache: Transcript

for OR1200 CPU Core Arijit Banerjee ASICSOC Class 2014 Dated 05092014 Motivation 2 ASICsSoCs have billions of transistors Impossible to design everything manually. Avg Access Time 2 Tokens Number of Controllers Average Access Time clock cyles brPage 16br Number of Tokens vs Avg Access Time 9 Controllers Number of Tokens Average Access Time clock cycles brPage 17br brPage 18br Client sends HTTP request 2 Web Cache responds immediately if cached object is available 3 If object is not in cache W eb Cache requests object from Application Server 4 Application Server generates response may include Database queries 5 Applicatio Here we focus on cache improvements to support at least 1 instruction fetch and at least 1 data access per cycle. With a superscalar, we might need to accommodate more than 1 per cycle. Typical server and . for 3D memory systems. CAMEO. 12/15/2014 MICRO. Cambridge, UK. Chiachen Chou, Georgia Tech. Aamer. . Jaleel. , Intel. Moinuddin. K. . Qureshi. , Georgia Tech. Executive Summary. How to use . S. tacked DRAM: Cache or Memory. AMANO, Hideharu, Keio University. hunga@am. ．. ics. ．. keio. ．. ac. ．. jp. Textbook. 　. pp.40-60. Cache memory. A small high speed memory for storing frequently accessed data/instructions.. r. eal-time . systems. 1. Outline. Basic processor architecture. Memory technologies. Architectural advancements. Peripheral interfacing. Microprocessor vs. Microcontroller. Distributed real-time architectures. Table 4.1 . Key . Characteristics of Computer Memory Systems. . © 2016 Pearson Education, Inc., Hoboken, NJ. All rights reserved.. Characteristics of Memory Systems. Location. Refers to whether memory is internal and external to the computer. wrt. . . Trace Filters. Parosh. . Aziz Abdulla. 1. , . Mohamed . Faouzi. Atig. 1. , . Zeinab. Ganjei. 2. , Ahmed Rezine. 2. . and . Yunyun. . Zhu. 1. 1. Uppsala. . University, Sweden. 2. . Lin. Managed jointly by CPU hardware and the operating system (OS). Programs share main memory. Each gets a private virtual address space holding its frequently used code and data. Protected from other programs. wrt. . . Trace Filters. Parosh. . Aziz Abdulla. 1. , . Mohamed . Faouzi. Atig. 1. , . Zeinab. Ganjei. 2. , Ahmed Rezine. 2. . and . Yunyun. . Zhu. 1. 1. Uppsala. . University, Sweden. 2. . Lin. 1 Memory & Cache Memories: Review 2 Memory is required for storing Data Instructions Different memory types Dynamic RAM Static RAM Read-only memory (ROM) Characteristics Access time Price Volatility Virtual Memory Use main memory as a “cache” for secondary (disk) storage Managed jointly by CPU hardware and the operating system (OS) Programs share main memory Each gets a private virtual address space holding its frequently used code and data TLC: A Tag-less Cache for reducing dynamic first level Cache Energy Presented by Rohit Reddy Takkala Introduction First level caches are performance critical and are therefore optimized for speed. Modern processors reduce the miss ratio by using set-associative caches and optimize latency by reading all ways in parallel with the TLB(Translation Lookaside Buffer) and tag lookup. Mohammad Laghari and Didem Unat. 1. SBAC-PAD 2017 @ Campinas, Brazil 17-20 October 2017. https://parcorelab.ku.edu.tr. Image taken from: http://www.amd.com/en/technologies/hbm. Introduction. To overcome memory bandwidth limitations, multiple memories with different characteristics are introduced.

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