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WO1996039663A1 - Dispositif, son utilisation et procede pour mesurer les temps de reponse et la facilite d'acces dans un systeme d'ordinateurs interconnectes - Google Patents

Dispositif, son utilisation et procede pour mesurer les temps de reponse et la facilite d'acces dans un systeme d'ordinateurs interconnectes Download PDF

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Publication number
WO1996039663A1
WO1996039663A1 PCT/SE1996/000742 SE9600742W WO9639663A1 WO 1996039663 A1 WO1996039663 A1 WO 1996039663A1 SE 9600742 W SE9600742 W SE 9600742W WO 9639663 A1 WO9639663 A1 WO 9639663A1
Authority
WO
WIPO (PCT)
Prior art keywords
measurement
user
external
procedure
answer
Prior art date
Application number
PCT/SE1996/000742
Other languages
English (en)
Inventor
Anders Karlsson
Christer Andersson
Leif Peterson
Original Assignee
Telia Ab
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 Telia Ab filed Critical Telia Ab
Publication of WO1996039663A1 publication Critical patent/WO1996039663A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06F11/3409—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 for performance assessment
    • G06F11/3419—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 for performance assessment by assessing time
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2201/00—Indexing scheme relating to error detection, to error correction, and to monitoring
    • G06F2201/87—Monitoring of transactions

Definitions

  • the present invention relates to a device and a procedure to measure answer times and acccess at communication in a communication system consisting of workplace equipments and computers which are interconnected in some kind of communication network.
  • the American patent document 4 982 349 relates to a system for answer time analysis for a terminal system connected to a host processor where the answer time measurement equipment is connected between a host computer and a personal computer.
  • the American patent document 4930093 shows a system for measurement of answer times with a central unit and a terminal.
  • workstations such as for instance personal computers
  • servers are interconnected by means of different types of servers containing common resources.
  • This technology is often called client/server-technology.
  • the server can among other things include a relation database which stores and possibly processes data. Its resources can be shared by a number of workplace equipments and computers which are often referred to as clients.
  • clients When one, via a client or as ordinary terminal user, operates towards some type of exernal computer via some type of communication method, one as a user experiences that it sometimes will take long time before the external computer system provides the information or data which is asked for. Further, one sometimes thinks that it will take too long time before one gets access to the system. This means that one as a user becomes frustrated and often draws the conclusion that it is the external computer or the system that has poor capacity.
  • One aim with the invention consequently is to make one in relation to the prior art improved and simplified procedure to measure answer times and accessibility, at different system solutions, when a workplace equipment directly or via communication network is connected to an external environment with there existing computer or computers.
  • Another aim is to make a device in a communication system which in a simple and reliable way gives possibility to analyse answer times and accessibility in said system and act as an analysis instrument to identify in which part of said communication system one has problems which result in long answer times and/or poor accessability.
  • the principal characteristics of the invention is a procedure to measure analysis parameters in communication systems with interconnected computers which includes a user environment with communication equipment, and one or more external environments with communication equipment and one or more communication networks between said user environment and said external environment. Initiation of communication is often made from user environment to external environments, at which said analysis parameters are measured both in user environment and in external environment/environments, at which disturbances in the communication system can be located by comparison between measured values in user environment and in external environment/environments.
  • the analysis parameters consist of answer time and accessibility, and the measurement is performed at the same point of time by means of at least one measurement station connected to the communications network in the same way as the user equipment.
  • the answer time in the user environment is measured by belonging measurement station and, further, system time is measured by a measurement station at the external computer, alternatively external host computer/server system.
  • the invention is a use of accessibility and answer times as analysis parameters to identify a poor network configuration, at which the answer times are obtained from at least two measurement computers which are run in parallell in a certain application towards an external computer, at which the difference in answer time value and successful access attempts makes a base for said identification.
  • the invention is a device at computer system including a workplace equipment including for instance user computer which under normal operation is used by an operator, at which said user computer is connected to, for instance, a local LAN (Local Network) which via a communication network is connected to one or more host computers which allow that information can be distributed from said host computers to connected user computers, at which at both user computer and host computer directly or via LAN a measurement device which measures answer times and/or accessibility are connected.
  • a workplace equipment including for instance user computer which under normal operation is used by an operator, at which said user computer is connected to, for instance, a local LAN (Local Network) which via a communication network is connected to one or more host computers which allow that information can be distributed from said host computers to connected user computers, at which at both user computer and host computer directly or via LAN a measurement device which measures answer times and/or accessibility are connected.
  • LAN Local Area Network
  • the invention implies that one can get an objective measurement at the same time as a user application is run.
  • the invention also entails that the measurement is performed without the user in any way being disturbed in his/her work.
  • FIG. 1 showing a schematic representation of a system concept according to the invention.
  • Figure 2 showing a schematic drawing of a part of the system concept with a variant of measurement station with including function modules connected to a host computer.
  • TJ ? ⁇ communication equipments can consist of in the market existing cc '.cers or the like, which communicate with each other via some type of communication methods 3 (for instance local network, point- to-point-circuits, TCP/IP-network, X.25-network etc) .
  • some type of communication methods 3 for instance local network, point- to-point-circuits, TCP/IP-network, X.25-network etc.
  • a measurement station 4 is connected at said user equipment via local LAN 5.
  • Said LAN is in its turn connected to one ore more computers in the external environment via communication network 3.
  • measurement stations located at external environments which each via a local LAN of its own (LAN 1,2,3) or directly connected, are connected to the host computers/servers 6 which are located in said environment.
  • the measurement stations can consist of conventional computers.
  • the measurement device consists of functions for collecting and storing of measurement data.
  • the meaurement of answer time can be performed in the following way.
  • a user intends to communicate with an external computer via some type of application program
  • the same program is also started in the measurement station, and the measurement station performs in parallell the same thing as the user computer.
  • the measurement station measures how long time it will take before one for instance obtains an answer on an enquiry to an external computer. In the same way a measurement station located at the external computer equipment starts and measures how long time it will take before it receives the same answer. At comparison between the times which have been registered at the different measurement stations, different conclusions can be drawn.
  • the measurement station When the accessibility is measured the measurement station is run in user environment and the measurement station in the external environment at the same time towards the host computer, at which the accessibility (when the measurement station receives answer from chosen application in the external computer system) is registered in the measurement stations.
  • answer time measurement and accessibility measurement applications are activated in the measurement station. This enters topical specifications for a selected measurement case from the instruction part in the database via ODBC or another protocol with corresponding function. Based on these specifications, the answer time measurement and accessibility measurement application starts the user program ware (for instance a terminal emulator or a client application) and establishes an internal process communication (DDE or another protocol with corresponding function) with this. Answer time measurement and accessibility measurement applications act as a virtual user for this program ware och gives instructions towards chosen "application” according to the specifications which are drawn from the database. When measurement starts, the answer time measurement and accessibility measurement applications start a clock, and the transactions for which measurements are wanted are transmitted to the "user program ware" . When the last character in the answer has reached the user program ware, the answer time measurement and accessibility measurement applications stop the clock, calculates the answer time and stores the result together with time and day - the clock in the measurement station or in the externally located result part of the database.
  • the answer time measurement and accessibility measurement applications stop the clock, calculates the answer
  • This procedure is controlled with regard to which time of the twenty- four hours measurements shall be performed, with which periodicity measurements shall be performed, and which "applications" the measurements relate to, all according to stored specifications for chosen measurement case in the database.
  • the specifications are stored in the database via support functions in answer time measurement and accessibility measurement application.
  • Measurement data is drawn from the result part of the database via ODBC or another protocol with corresponding function. At presentation of measurement data results for user located measurement equipment are compared with equipment placed in front of external environments (servers etc) .
  • the invention is not restricted to the shown examples of embodiment, but can be varied in just any way within the frame of the idea of the invention, such as it is defined in the following patent claims.
  • the invention can for instance be realized by program ware in the measurement station being implemented in the user's workplace equipment, at which no separate measurement station is required at the user equipment.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Debugging And Monitoring (AREA)
  • Computer And Data Communications (AREA)

Abstract

L'invention concerne un procédé et un dispositif pour mesurer des paramètres d'analyse dans un système de communication comprenant un environnement utilisateur avec un équipement de communication et un ou plusieurs environnements externes avec un équipement de communication et un ou plusieurs réseaux de communication. Des communications s'effectuent entre l'environnement utilisateur et l'environnement externe de communication, le déclenchement de la communication se faisant souvent depuis l'environnement utilisateur vers l'environnement externe. Lors de cette communication, ces paramètres d'analyse sont mesurés en même temps dans l'environnement utilisateur et dans le ou les environnement(s) externe(s). Des perturbations dans le système de communication peuvent être localisées par comparaison entre les valeurs mesurées dans l'environnement utlisateur et dans le ou les environnement(s) externe(s). Les paramètres en question sont le temps de réponse et la facilité d'accès.
PCT/SE1996/000742 1995-06-06 1996-06-05 Dispositif, son utilisation et procede pour mesurer les temps de reponse et la facilite d'acces dans un systeme d'ordinateurs interconnectes WO1996039663A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9502076-4 1995-06-06
SE9502076A SE504918C2 (sv) 1995-06-06 1995-06-06 Anordning, användning och förfarande för att mäta svarstider och tillgänglighet i system med sammankopplade datorer

Publications (1)

Publication Number Publication Date
WO1996039663A1 true WO1996039663A1 (fr) 1996-12-12

Family

ID=20398543

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1996/000742 WO1996039663A1 (fr) 1995-06-06 1996-06-05 Dispositif, son utilisation et procede pour mesurer les temps de reponse et la facilite d'acces dans un systeme d'ordinateurs interconnectes

Country Status (2)

Country Link
SE (1) SE504918C2 (fr)
WO (1) WO1996039663A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4982349A (en) * 1989-06-29 1991-01-01 At&T Bell Laboratories Response time analysis system
WO1992012480A1 (fr) * 1991-01-09 1992-07-23 Verifone, Inc. Emulateur de systeme transactionnel
US5228066A (en) * 1992-04-22 1993-07-13 Digital Equipment Corporation System and method for measuring computer system time intervals
WO1994009429A1 (fr) * 1992-10-13 1994-04-28 Zitel Corporation Procede et systeme d'evaluation des performances d'un ordinateur

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4982349A (en) * 1989-06-29 1991-01-01 At&T Bell Laboratories Response time analysis system
WO1992012480A1 (fr) * 1991-01-09 1992-07-23 Verifone, Inc. Emulateur de systeme transactionnel
US5228066A (en) * 1992-04-22 1993-07-13 Digital Equipment Corporation System and method for measuring computer system time intervals
WO1994009429A1 (fr) * 1992-10-13 1994-04-28 Zitel Corporation Procede et systeme d'evaluation des performances d'un ordinateur

Also Published As

Publication number Publication date
SE504918C2 (sv) 1997-05-26
SE9502076D0 (sv) 1995-06-06
SE9502076L (sv) 1996-12-07

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