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US3818458A
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Method and apparatus for monitoring a general purpose digital computer
Assignee: Comress
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Filing: 1972-11-08
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Granted: 1974-06-18
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Expires: 1992-11-08
Abstract
Abstract A method and apparatus for monitoring the utilization and performance of a general purpose digital computer without affecting operation of the computer itself, in which the monitor responds to a change in the operative state of the computer to capture the contents of certain status registers and locations in memory associated with the type of state change which has been detected and identifies the time at which such state change has occurred for analysis and time correlation by a data processor.
Inventors
- 👤 D Deese
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:52
CPC Classifications
G; G06; G06F; G06F11/00; G06F11/30; G06F11/34; G06F11/3466; G06F11/348; G06F11/3409; G06F11/3419; G06F11/3485; G06F11/349; G06F2201/00; G06F2201/805; G06F2201/88
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
166 words
Apparatus for extracting performance data from a general purpose digital computer having a processing unit, a main storage bank for storing programs and data, an input-output network connecting the computer with a plurality of external devices via selected communications channels, and a control unit capable of interrupting the processing unit, the computer having a plurality of distinct operative states, wherein the apparatus comprises: first data collection means connected with the computer to register the occurrence of a state change exhibited thereby, second data collection means connected with the computer to register the address of a computer component associated with said state change, time stamping means connected with said first data collection means and responsive to the occurrence of said state change for registering the real time of occurrence thereof, and means connected with said first and second data collection means and said time stamping means for extracting registered data therefrom pertaining to state changes experienced by a particular computer component for enabling evaluation of computer performance.
Claim 2
Dependent Claim
166 words
Apparatus for extracting performance data from a general purpose digital computer having a processing unit, a main storage bank for storing programs and data, an input-output network connecting the computer with a plurality of external devices via selected communications channels, and a control unit capable of interrupting the processing unit, the computer having a plurality of distinct operative states, wherein the apparatus comprises: first data collection means connected with the computer to register the occurrence of a state change exhibited thereby, second data collection means connected with the computer to register the address of a computer component associated with said state change, time stamping means connected with said first data collection means and responsive to the occurrence of said state change for registering the real time of occurrence thereof, and means connected with said first and second data collection means and said time stamping means for extracting registered data therefrom pertaining to state changes experienced by a particular computer component for enabling evaluation of computer performance.
Claim 3
Dependent Claim
21 words
The invention as recited in claim 1 wherein said first and second daTa collection means comprise first and second collection registers.
Claim 4
Dependent Claim
61 words
The invention as recited in claim 2 wherein said first collection register has a set of input terminals connected with the computer to register changes in the operative state thereof and has a strobe input connected with said set of inputs whereby the contents of said first register may be read-out upon the occurrence of any one of said state changes.
Claim 5
Dependent Claim
43 words
The invention as recited in claim 1 wherein said second data collection means comprises a pair of collection registers connected to the computer to register the address of a component associated with the start of an input-output sequence and an input-output interrupt, respectively.
Claim 6
Dependent Claim
36 words
The invention as recited in claim 1 further including buffer means connected to receive output signals from said first and second data collection means and said clock means for collecting the same in a predetermined sequence.
Claim 7
Independent Claim
105 words
A method of extracting data for monitoring the performance of a general purpose digital computer comprising the steps of: connecting a plurality of data collection registers to the computer to register signals representative of the operative state thereof and the address of computer components associated therewith, detecting the occurrence of a change in the operative state of the computer, recording the time of occurrence of said detected state changes, and recording the address of computer components associated with each of said detected state changes, identifying a particular computer program associated with each of said detected state changes and recording such identification in a collection register.
Claim 8
Independent Claim
105 words
A method of extracting data for monitoring the performance of a general purpose digital computer comprising the steps of: connecting a plurality of data collection registers to the computer to register signals representative of the operative state thereof and the address of computer components associated therewith, detecting the occurrence of a change in the operative state of the computer, recording the time of occurrence of said detected state changes, and recording the address of computer components associated with each of said detected state changes, identifying a particular computer program associated with each of said detected state changes and recording such identification in a collection register.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-17 | 1977-12-17 | 1978-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-17 | 1981-12-17 | 1982-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-17 | 1985-12-17 | 1986-06-18 | $7700.00 | Window Closed / Lapsed |