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Apparatus for randomly sampling instructions in a processor pipeline 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • G06F-011/00
출원번호 US-0980190 (1997-11-26)
발명자 / 주소
  • Chrysos George Z.
  • Dean Jeffrey
  • Hicks James E.
  • Leibholz Daniel L.
  • McLellan Edward J.
  • Waldspurger Carl A.
  • Weihl William E.
출원인 / 주소
  • Digital Equipment Corporation
대리인 / 주소
    Jenkens & Gilchrist, a professional corporation
인용정보 피인용 횟수 : 104  인용 특허 : 17

초록 ▼

An apparatus is provided for sampling instructions in a processor pipeline of a system. The pipeline has a plurality of processing stages. The apparatus includes a fetch unit for fetching instructions into a first stage of the pipeline. Certain randomly selected instructions are identified, and stat

대표청구항 ▼

[ We claim:] [1.] An apparatus for sampling instructions in a processor pipeline of a system, the pipeline having a plurality of processing stages, comprising:means for fetching instructions into a first stage of the pipeline, the instructions being identified by additional fields indicating that th

이 특허에 인용된 특허 (17)

  1. Levine Frank E. (Austin TX) Twichell Brian C. (Austin TX) Welbon Edward H. (Austin TX), Hardware mechanism for instruction/data address tracing.
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  2. Matsuno Atsushi (Hitachi JPX) Naito Masanori (Hitachiota JPX) Kobayashi Hiroshi (Katsuta JPX) Horie Masanori (Ibaraki-ken JPX) Sato Hideki (Katsuta JPX) Tanji Masayuki (Hitachi JPX) Wada Shigeaki (Ka, Information processing system having performance measurement capabilities.
    상세보기
  3. Westcott Douglas W. (Rhinebeck NY) White Valerie (Poughkeepsie NY), Instruction sampling instrumentation.
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  4. Levin Arthur L. (Pleasant Valley NY) Rain Don W. (Poughkeepsie NY) Thomas David J. (Poughkeepsie NY), Internal performance monitoring by event sampling.
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  5. Eilert John H. (Wappingers Falls NY) Levin Arthur L. (Pleasant Valley NY) Thomas Julian (Poughkeepsie NY), Internally distributed monitoring system.
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  6. Rindos ; III Andrew J. (Durham NC) Woolet Steven P. (Raleigh NC), Method and apparatus for dynamically sampling digital counters to improve statistical accuracy.
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  7. Dewitt Jimmie E. (Georgetown TX) Holck Timothy M. (Austin TX) Summers James H. (Round Rock TX) Emrick Samuel L. (Austin TX), Method and apparatus for monitoring data processing system resources in real-time.
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  8. Levine Frank Eliot ; Roth Charles Philip ; Welbon Edward Hugh, Method and system for performance monitoring stalls to identify pipeline bottlenecks and stalls in a processing system.
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  9. Chrysos George Z. ; Dean Jeffrey ; Hicks James E. ; Waldspurger Carl A. ; Weihl William E., Method for estimating statistics of properties of instructions processed by a processor pipeline.
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  10. Dreyer Robert S. (Sunnyvale CA) Alpert Donald B. (Santa Clara CA) Modi Nimish H. (San Jose CA) Tripp Mike J. (Forest Grove OR), Microprocessor with an external command mode for diagnosis and debugging.
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  11. Bolosky William J. (Issaquah WA) Rashid Richard F. (Woodinville WA), Operating system based performance monitoring of programs.
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  12. Wiedenman Gregory B. (Woodbury MN) DeGarmo Randy L. (Oakdale MN), Performance monitor for digital computer system.
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  13. Blasciak Andrew J. (Colorado Springs CO), Software performance analyzer.
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  14. Blasciak Andrew J. (Colorado Springs CO), Software performance analyzer.
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  15. Fortin Michael R. (Austin TX), System and method for enabling stripped object software monitoring in a computer system.
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  16. Kuzara Eric J. (Colorado Springs CO) Blasciak Andrew J. (Colorado Springs CO) Parets Greg S. (Loveland CO), System for analyzing and debugging embedded software through dynamic and interactive use of code markers.
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  17. Wibecan Brian F. (Acton MA), System independent interface for performance counters.
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