'Rotational delay' diaporamas de présentation

DBMS Storage and Indexing

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Carnegie Mellon Univ. Dept. of Computer Science 15-415/615 - DB Applications

Carnegie Mellon Univ. Dept. of Computer Science 15-415/615 - DB Applications. C. Faloutsos & A. Pavlo Lecture #8 (R&G ch9) Storing Data: Disks and Files. Overview. Memory hierarchy RAID (briefly) Disk space management Buffer management Files of records Page Formats Record Formats.

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Storage, Indexing and Joins Slides taken from Database Management Systems, R. Ramakrishnan

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Chapter Goals

Chapter Goals. Describe the distinguishing characteristics of primary and secondary storage Describe the devices used to implement primary storage Describe memory allocation schemes Compare and contrast secondary storage technology alternatives. Chapter Goals (continued).

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Lecture 6: Query Processing; Hurry up!

Lecture 6: Query Processing; Hurry up!. Join Algorithms (ctd.) Sort-Merge External Sorting Costs and Complexities Mechanics Parsing Optimization. Overview EXPLAIN Measuring Performance Disk Architectures Indexes Motivation, Definition, Demonstration Classification

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Storing Data: Disks and Files

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CS 405G: Introduction to Database Systems

CS 405G: Introduction to Database Systems. 25 Exercise Chen Qian University of Kentucky. Project presentation. Demonstrate all functionalities of your application Complete some requests Introduce any additional features. The bonus part, if you have completed it. 4/24 Thursday.

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Storing Data: Disks and Files

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CS222/CS122c: Principles of Data Management Lecture #1 Fall 2018

CS222/CS122c: Principles of Data Management Lecture #1 Fall 2018. Instructor: Prof. Chen Li UC Irvine. Overview. Welcome grads and undergrads alike! Course wiki page https://grape.ics.uci.edu/wiki/public/wiki/cs222-201 8 -fall Piazza page https://piazza.com/uci/fall201 8 /cs222cs122c

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CPS216: Data-Intensive Computing Systems Data Access from Disks

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Storing Data: Disks and Files

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Storing Data: Disks and Files

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Storage and Index

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Storing Data: Disks and Files

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Storing Data: Disks and Files

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Storing Data: Disks and Files

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CS241 I/O Revisited

CS241 I/O Revisited. Lawrence Angrave DMA, Polling, Disk Characteristics. Today. Networking Quiz DMA vs Polling Disk Characteristics Announcements. DMA & I/O. What is DMA? Why is useful? How does it work? Compare it Polling?. DMA. Direct Memory Access

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Storing Data: Disk Organization and I/O

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Disks and Files

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Components of the Virtual Memory System

virtual page number (VPN). page offset. virtual address. TLB. physical address. page offset. page table. block offset. index. tag. disk. cache. data. memory. Components of the Virtual Memory System. Arrows indicate what happens on a lw. PPN. I/O Performance.

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