Amdahl´s Reliability Law: A Simple Quantification of the Weakest-Link Phenomenon

Author

Parhami, Behrooz

Author_Institution

Univ. of California, Santa Barbara, Santa Barbara, CA, USA

Volume

48

Issue

7

fYear

2015

fDate

Jul-15

Firstpage

55

Lastpage

58

Abstract

Amdahl\´s performance law is a useful conceptual and pedagogical tool for imparting key ideas about performance limits and the importance of balanced system design to students and practitioners in the field. The weakest-link maxim of reliability engineering can be expressed in terms of an identical formula, giving it a quantitative basis and thus making it more convincing. Calling it "Amdahl\´s reliability law" stresses the fact that it follows directly from Amdahl\´s speedup formula.

Keywords

parallel processing; software reliability; Amdahl performance law; Amdahl reliability law; Amdahl speedup formula; balanced system design; identical formula; pedagogical tool; performance limit; quantitative basis; reliability engineering; weakest-link maxim; weakest-link phenomenon; Computer architecture; Failure analysis; Parallel processing; Program processors; Reliability engineering; System analysis and design; Amdahl´s law; balanced design; failure-rate allotment; reliability engineering; weakest-link phenomenon;

fLanguage

English

Journal_Title

Computer

Publisher

ieee

ISSN

0018-9162

Type

jour

DOI

10.1109/MC.2015.202

Filename

7163259