PPT-Lecture 13 Concurrency Bugs CV rules of thumb: Keep state in addition to CV’s

Author : pamella-moone | Published Date : 2019-11-01

Lecture 13 Concurrency Bugs CV rules of thumb Keep state in addition to CVs Always do waitsignal with lock held Whenever you acquire a lock recheck state Implementing

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Lecture 13 Concurrency Bugs CV rules of thumb: Keep state in addition to CV’s: Transcript

Lecture 13 Concurrency Bugs CV rules of thumb Keep state in addition to CVs Always do waitsignal with lock held Whenever you acquire a lock recheck state Implementing Join with CV void threadexit. In addition it lists all Thumb2 16bit instructions The instructions shown on this card are all 16bit in Thumb2 except where noted otherwise All registers are Lo R0R7 except wher e specified Hi registers are R8R15 Key to Tables See Table ARM architec Slide . 1. Too Much Milk. . Roommate . A. 3:00. Arrive home: no milk. 3:05. Leave for store. 3:10. Arrive at store. 3:15. Leave store. 3:20. Arrive home, put milk away. CS 140 Lecture Notes: Concurrency. Slide . 1. Too Much Milk. . Person A. 3:00. Arrive home: no milk. 3:05. Leave for store. 3:10. Arrive at store. 3:15. Leave store. 3:20. Arrive home, put milk away. CS 140 Lecture Notes: Concurrency. Motivation, Problems, Directions. Dennis Kafura - CS 5204 - Operating Systems. 1. Dennis Kafura - CS 5204 - Operating Systems. 2. Reasons for Concurrency. multitasking. parallelism. performance. coordination. on Program . Analysis. Weizmann Institute . of Science. Guy Katz. and David . Harel. Overview. Program analysis: verification, repair, synthesis, . etc. Very desirable, but very difficult. State explosion. Guoliang. Jin, . Linhai. Song. , . Xiaoming. Shi, . Joel . Scherpelz. and Shan Lu. University of . Wisconsin–Madison. 1. Software Efficiency is Critical. No one wants slow and inefficient software. . Jin, Linhai. . Song, Wei Zhang. , . Shan. . Lu, and . Ben Liblit. University of Wisconsin–Madison. Automated. . Atomicity-Violation Fixing. Focus on Single-Variable Atomicity Bugs. Multicore era is . Ben Shelton. Motivation. Concurrent programming is . necessary. Multicore . revolution. Concurrent programming is . difficult, and . p. rogrammers need tools to help them write more reliable concurrent programs. Dennis Kafura - CS 5204 - Operating Systems. 1. Dennis Kafura - CS 5204 - Operating Systems. 2. Reasons for Concurrency. multitasking. parallelism. performance. coordination. Moore’s Law. Dennis Kafura - CS 5204 - Operating Systems. Baris Kasikci, . Weidong. Cui, Xinyang Ge, Ben . Niu. Why Does . In-Production Bug . Diagnosis Matter?. Potential to fix bugs that impact users. Short release cycles make in-house testing challenging. Baris Kasikci, . Weidong. Cui, Xinyang Ge, Ben . Niu. Why Does . In-Production Bug . Diagnosis Matter?. Potential to fix bugs that impact users. Short release cycles make in-house testing challenging. FACTOR:. 6D 6. 5T – 5. 4D 8. 3F – 9. 8G 10. Turn in page 275. Chapter 3 Test Review. Get out a sheet of notebook paper so you can take notes.. OR. Get out your math composition book . Ratios and Proportional Relationships. Understanding and Detecting Real-World Performance Bugs Guoliang Jin, Linhai Song , Xiaoming Shi, Joel Scherpelz and Shan Lu University of Wisconsin–Madison 1 Software Efficiency is Critical Slide . 1. Too Much Milk. . Roomate. A. 3:00. Arrive home: no milk. 3:05. Leave for store. 3:10. Arrive at store. 3:15. Leave store. 3:20. Arrive home, put milk away. CS 140 Lecture Notes: Concurrency.

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