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The processor unit chip (PU chip) has 12 cores. The z15 cores support two-way simultaneous multithreading. [3]The cores implement the CISC z/Architecture with a superscalar, out-of-order pipeline.
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.
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.
SMF data can be collected through IBM Z Operational Log and Data Analytics and IBM Z Anomaly Analytics with Watson. IBM Z Operational Log and Data Analytics collects SMF data, transforms it in a consumable format and then sends the data to third-party enterprise analytics platforms like the Elastic Stack and Splunk, or to the included operational data analysis platform, for further analysis.
Those users who stayed with IDMS were primarily interested in its high performance, not in its relational capabilities. It was widely recognized (helped by a high-profile campaign by E. F. Codd , the father of the relational model ) that there was a significant difference between a relational database and a network database with a relational ...
Transaction Processing Facility (TPF) [2] is an IBM real-time operating system for mainframe computers descended from the IBM System/360 family, including zSeries and System z9. TPF delivers fast, high-volume, high-throughput transaction processing, handling large, continuous loads of essentially simple transactions across large, geographically ...
Half-word (18-bits), word (36-bits) and double-word (72-bits) operands are supported. Multiply and divide instructions are provided which treat the operand as a binary fraction rather than an integer. Binary floating-point data can be single precision (36 bits) or double precision (72 bits). In either case the exponent is eight bits, twos ...
In 1974 IBM started a project to build a telephone switching computer that required, for the time, immense computational power. Since the application was comparably simple, this machine would need only to perform I/O, branches, add register-register, move data between registers and memory, and would have no need for special instructions to perform heavy arithmetic.