JPS5764854A - Storage device of state history - Google Patents

Storage device of state history

Info

Publication number
JPS5764854A
JPS5764854A JP55141326A JP14132680A JPS5764854A JP S5764854 A JPS5764854 A JP S5764854A JP 55141326 A JP55141326 A JP 55141326A JP 14132680 A JP14132680 A JP 14132680A JP S5764854 A JPS5764854 A JP S5764854A
Authority
JP
Japan
Prior art keywords
state history
conditions
observed
time
tracing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP55141326A
Other languages
Japanese (ja)
Inventor
Kazumasa Tanaka
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP55141326A priority Critical patent/JPS5764854A/en
Publication of JPS5764854A publication Critical patent/JPS5764854A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/0703—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/30—Monitoring
    • G06F11/34—Recording or statistical evaluation of computer activity, e.g. of down time, of input/output operation ; Recording or statistical evaluation of user activity, e.g. usability assessment
    • G06F11/3466—Performance evaluation by tracing or monitoring

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Debugging And Monitoring (AREA)

Abstract

PURPOSE:To realize an easy and high-speed process of diagnosis to a device to be observed, by storing successively the internal state and having a storing operation of state history for the time designated previously even after the prescribed stop conditions are detected. CONSTITUTION:A control circuit 120 replaces an address counter 140 every time a trace condition detecting circuit 110 detects the trace conditions. At the same time, the state history information 131 of a device to be observed is written into an address designated by the counter 140 of a storage circuit 130. When the conditions to complete the tracing action is detected by a stop condition detecting circuit 100, a signal 120 is delivered. The stop signal is delayed 152 by a delaying circuit 150 and by a time 151 that is previously designated. Then the tracing (state history storing) action is carried out. In such way, the tracing after detection of stop conditions to realize an easy and high-speed process of diagnosis to a device to be observed.
JP55141326A 1980-10-09 1980-10-09 Storage device of state history Pending JPS5764854A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55141326A JPS5764854A (en) 1980-10-09 1980-10-09 Storage device of state history

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55141326A JPS5764854A (en) 1980-10-09 1980-10-09 Storage device of state history

Publications (1)

Publication Number Publication Date
JPS5764854A true JPS5764854A (en) 1982-04-20

Family

ID=15289324

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55141326A Pending JPS5764854A (en) 1980-10-09 1980-10-09 Storage device of state history

Country Status (1)

Country Link
JP (1) JPS5764854A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6423356A (en) * 1987-07-20 1989-01-26 Pfu Ltd Trace system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6423356A (en) * 1987-07-20 1989-01-26 Pfu Ltd Trace system
JPH0542020B2 (en) * 1987-07-20 1993-06-25 Pfu Ltd

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