'Branch target buffer' presentation slideshows

CS252 Graduate Computer Architecture Lecture 10 Prediction/Speculation February 22 nd , 2012

CS252 Graduate Computer Architecture Lecture 10 Prediction/Speculation February 22 nd , 2012. John Kubiatowicz Electrical Engineering and Computer Sciences University of California, Berkeley http://www.eecs.berkeley.edu/~kubitron/cs252. Stream of Instructions To Execute. Instruction Fetch

779 views • 65 slides

Computer Architecture

Computer Architecture. Chapter 3 Instruction-Level Parallelism 2 Prof. Jerry Breecher CSCI 240 Fall 2003. Chapter Overview. 3.1 Instruction Level Parallelism: Concepts and Challenges 3.2 Overcoming Data Hazards with Dynamic Scheduling 3.3 Dynamic Scheduling: Examples & The Algorithm

823 views • 51 slides

March 23, 2001 Prof. David A. Patterson Computer Science 252 Spring 2001

CS252 Graduate Computer Architecture Lecture 17: ILP and Dynamic Execution #2: Branch Prediction, Multiple Issue. March 23, 2001 Prof. David A. Patterson Computer Science 252 Spring 2001. Review Tomasulo.

534 views • 41 slides

Advanced Microarchitecture

Advanced Microarchitecture. Lecture 3: Superscalar Fetch. Fetch Rate is an ILP Upper Bound. To sustain an execution rate of N IPC, you must be able to sustain a fetch rate of N IPC!

528 views • 41 slides

CSL718 : Pipelined Processors

609 views • 39 slides

EECS 470 Lecture 7 Branches: Address prediction and recovery (And interrupt recovery too.)

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CDA 5155

Week 4 Branch Prediction. CDA 5155. M U X. +. +. A L U. target. eq?. M U X. 1. REG file. M U X. PC. Inst mem. Data memory. M U X. sign ext. bpc. target. Control. IF/ ID. ID/ EX. EX/ Mem. Mem/ WB. beq. Branch Target Buffer. Fetch PC. Send PC to BTB.

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Branch statistics

Branch statistics. Branches occur every 4-7 instructions on average in integer programs, commercial and desktop applications; somewhat less frequently in scientific ones Unconditional branches : 20% (of branches) Conditional (80%)

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Computer Architecture Advanced Branch Prediction

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CPE 631 Lecture 12: Branch Prediction

CPE 631 Lecture 12: Branch Prediction. Aleksandar Milenkovi ? , milenka@ece.uah.edu Electrical and Computer Engineering University of Alabama in Huntsville. Case for Branch Prediction. Dynamic scheduling increases the amount of ILP => control dependence becomes the limiting factor

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474 views • 28 slides

Lect 13: 80486 and Pentium

Lect 13: 80486 and Pentium. 80486 Microprocessor Family. 80486 Microprocessor Introduced in 1989 High Integration On-chip 8K Code and Data cache Floating Point Unit Paged, Virtual Memory Management 168-pin PGA package Multiprocessor Support Multiprocessor Instructions

639 views • 26 slides

Lect 13: 80486 and Pentium

Lect 13: 80486 and Pentium. 80486 Microprocessor Family. 80486 Microprocessor Introduced in 1989 High Integration On-chip 8K Code and Data cache Floating Point Unit Paged, Virtual Memory Management 168-pin PGA package Multiprocessor Support Multiprocessor Instructions

1.01k views • 26 slides

EECS 470

EECS 470. Pipeline Control Hazards Lecture 5 Coverage: Chapter 3 & Appendix A. Pipeline function for BEQ. Fetch: read instruction from memory Decode: read source operands from reg Execute: calculate target address and test for equality

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Computer Organization CS224

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Lecture 8 Dynamic Branch Prediction, Superscalar and VLIW

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Ch2. Instruction-Level Parallelism & Its Exploitation 2. Dynamic Scheduling

ECE Department University of Massachusetts Dartmouth 285 Old Westport Rd. North Dartmouth, MA 02747-2300. Ch2. Instruction-Level Parallelism & Its Exploitation 2. Dynamic Scheduling. ECE562/468 Advanced Computer Architecture Prof. Honggang Wang.

332 views • 19 slides

Evaluation of branch-prediction methods on traces from commercial applications

Evaluation of branch-prediction methods on traces from commercial applications. R.B. Hilgendorf, G. J. Helm, W. Rosenstiel. Progress?. Significant, but it is still not clear which, if any, of the currently advocated methods is superior. SPECmark test suite traces are often used

268 views • 16 slides

Lecture 10 : Branch Prediction and Instruction Delivery

Lecture 10 : Branch Prediction and Instruction Delivery. Branch target buffer, return address prediction, tournament predictor, high-performance instruction delivery. Correlating Branch Predictor. General form: (m, n) predictor m bits for global history, n bits for local history

367 views • 14 slides

Hardware Dynamic Branch Prediction

Hardware Dynamic Branch Prediction. Simplest method: A branch prediction buffer or Branch History Table (BHT) indexed by low address bits of the branch instruction. Each buffer location (or BHT entry) contains one bit indicating whether the branch was recently taken or not.

333 views • 14 slides