Accession Number : AD0787672

Title :   Imbedded Software Monitors and Data Collection. Volume I. Design and Implementation.

Descriptive Note : Final rept. Apr 73-Apr 74,

Corporate Author : PRC INFORMATION SCIENCES CO MCLEAN VA

Personal Author(s) : Navarro,Aaron B. ; Romanczuk,Ronald J.

Report Date : SEP 1974

Pagination or Media Count : 101

Abstract : The Planning Research Corporation (PRC) developed a set of data collection programs to provide operational data about Data Management System (DMS) in the General Comprehensive Operating System (GCOS) environment. The programs (software monitors) collect data on response times, input/output times, job throughput and frequency of DMS module use. Additionally, PRC developed analysis procedures to reduce data so that a DMS could be evaluated, compared to other DMSs, or fine-timed for better performance. This report shows how PRC developed the Imbedded Software monitor package which basically searches the core image of user program modules at execution time and finding calls to subroutines that are to be monitored. (Modified author abstract)

Descriptors :   *Computer programming, Monitors, Data bases, Control sequences, Central processing units

Subject Categories : Computer Programming and Software
      Computer Hardware

Distribution Statement : APPROVED FOR PUBLIC RELEASE