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Loop nest optimization increases the number of cache hits by operating over small blocks and by using a loop interchange. Loop reversal Loop reversal reverses the order in which values are assigned to the index variable. This is a subtle optimization that can help eliminate dependencies and thus enable other optimizations. Furthermore, on some ...
In IBM mainframes, Workload Manager (WLM) is a base component of MVS/ESA mainframe operating system, and its successors up to and including z/OS. It controls the access to system resources for the work executing on z/OS based on administrator-defined goals. Workload Manager components also exist for other operating systems.
A mainframe computer, informally called a mainframe or big iron, [1] is a computer used primarily by large organizations for critical applications like bulk data processing for tasks such as censuses, industry and consumer statistics, enterprise resource planning, and large-scale transaction processing.
Place this template at the bottom of appropriate articles in optimization: {{Optimization algorithms}}For most transcluding articles, you should add the variable designating the most relevant sub-template: The additional variable will display the sub-template's articles (while hiding the articles in the other sub-templates):
OMEGAMON, later IBM Tivoli OMEGAMON XE, is a software family of performance monitors for IBM zEnterprise computer environments. These products were originally written, marketed, sold and maintained by Candle Corporation, [1] which was acquired by IBM in 2004.
Resource Measurement Facility (RMF) is a performance monitor for the z/OS operating system. It also collects data for long-term performance analysis and capacity planning. The product consists of the following components: Monitor I Data Gatherer which collects data in adjustable intervals from one minute to one hour.
RACF (IBM's mainframe security software product) – Sysplex-wide RVARY and SETROPTS commands; PDSE file sharing; Multisystem VLFNOTE, SDUMP, SLIP, DAE; Resource Measurement Facility (RMF) – Sysplex-wide reporting; CICS – uses XCF to provide better performance and response time than using VTAM for transaction routing and function shipping.
Over a couple of years, Bull took over the company. NEC supplied several generations of mainframe hardware at the high end, which would run both GCOS 8 and their own ACOS-4 Operating System. Bull used the nomenclature DPS-9000 for its entire GCOS 8-based mainframe line, which included models designed by both Bull and NEC.
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