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SPAM: a microcode based tool for tracing operating system events

Authors:

Stephen W. Melvin,

Yale N. PattAuthors Info & Claims

MICRO 20: Proceedings of the 20th annual workshop on Microprogramming

Pages 168 - 171

https://doi.org/10.1145/255305.255343

Published: 01 December 1987 Publication History

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Abstract

We have developed a tool called SPAM (for System Performance Analysis using Microcode), based on microcode modifications to a VAX 8600, that traces operating system events as a side-effect to normal execution. This trace of interrupts, exceptions, system calls and context switches can then be processed to analyze operating system behavior for the purpose of debugging, tuning or development. SPAM allows measurements to be made on a fully operating UNIX system with little perturbation (typically less than 10%) and without the need for modifying the kernel.

Reference

[1]

S. W. Melvin and Y. N. Patt, "A Microcode-Based Environment for Non-Invasive Performance Analysis," Proceedings to The 19th Annual Workshop on Microprogramming, October 15-17, 1986, New York, New York.

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Patt Y(1989)Alternative implementations of Prolog: the microarchitecture perspectiveIEEE Transactions on Systems, Man, and Cybernetics10.1109/21.3533319:4(693-698)Online publication date: Jan-1989
https://doi.org/10.1109/21.35333
Melvin SPatt YSmith C(1988)The use of microcode instrumentation for development, debugging and tuning of operating system kernelsProceedings of the 1988 ACM SIGMETRICS conference on Measurement and modeling of computer systems10.1145/55595.55619(207-214)Online publication date: 1-May-1988
https://dl.acm.org/doi/10.1145/55595.55619
Melvin SPatt Y(1988)The use of microcode instrumentation for development, debugging and tuning of operating system kernelsACM SIGMETRICS Performance Evaluation Review10.1145/1007771.5561916:1(207-214)Online publication date: 1-May-1988
https://dl.acm.org/doi/10.1145/1007771.55619

Index Terms

SPAM: a microcode based tool for tracing operating system events
1. Information systems
  1. Information storage systems
    1. Storage management
2. Software and its engineering
  1. Software organization and properties
    1. Contextual software domains
      1. Operating systems
        File systems management
        Memory management

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MICRO 20: Proceedings of the 20th annual workshop on Microprogramming

December 1987

174 pages

ISBN:0897912500

DOI:10.1145/255305

Chairman:
Gearold R. Johnson

Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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Association for Computing Machinery

New York, NY, United States

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Published: 01 December 1987

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Patt Y(1989)Alternative implementations of Prolog: the microarchitecture perspectiveIEEE Transactions on Systems, Man, and Cybernetics10.1109/21.3533319:4(693-698)Online publication date: Jan-1989
https://doi.org/10.1109/21.35333
Melvin SPatt YSmith C(1988)The use of microcode instrumentation for development, debugging and tuning of operating system kernelsProceedings of the 1988 ACM SIGMETRICS conference on Measurement and modeling of computer systems10.1145/55595.55619(207-214)Online publication date: 1-May-1988
https://dl.acm.org/doi/10.1145/55595.55619
Melvin SPatt Y(1988)The use of microcode instrumentation for development, debugging and tuning of operating system kernelsACM SIGMETRICS Performance Evaluation Review10.1145/1007771.5561916:1(207-214)Online publication date: 1-May-1988
https://dl.acm.org/doi/10.1145/1007771.55619

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Removing the Spam: E-Mail Processing and Filtering

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Preventing Spam Email by Delivery Limitation in RMX

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