International Business Machines Corporation

David C Manners

Jeffrey Mark Nick

Peter Bergersen Yocom

Jeffrey Alan Frey

Paul Miller Bird

Danny R Sutherland

Donna N Eng Dillenberger

Mark Francis Hulber

Eugene S Schulze

Francis Wong

According to one embodiment of the present invention, a system, method and computer program product is provided for integrating an external workload manager with a database system. The method according to one embodiment includes a method comprises: receiving a request in a database component, the request including a cross component token; starting a new unit of work in workload management software in the database component, in response to the request; determining, from a cross component workload management unit, a transaction class and a synchronization code using the database component; finding an internal workload in the workload management software that matches the transaction class and the synchronization code of the cross component workload management unit; and using the matching internal workload for the new unit of work.

Efficient integration between an external workload manager and an RDBMS

A LOCK PAGE instruction is provided for locking a page of real storage using a virtual address. The LOCK PAGE instruction includes an operation code which specifies the operation to be performed, a first operand which contains the value of the real address obtained during execution of the LOCK PAGE instruction and a second operand which contains the value of the virtual address of the page to be locked during execution of LOCK PAGE. LOCK PAGE enables an address page or a data page to be locked without requiring the entire address space to be locked. A page is locked when a lock control bit in general register 0 is zero, the page is valid in main storage and a lock bit located in a page table entry is zero. In addition to the above, the technique used by an operating system service for reclaiming a page of real storage is altered to intersect with the LOCK PAGE facility.

Method and system for locking a page of real storage using a virtual

A data processing system includes central storage where access to data is by central storage addresses. Instructions normally include a logical or virtual address which is translated to a real central storage address using dynamic address translation (DAT) with or without an access register (AR) translation mechanism. When in AR mode, and with DAT on, addressing of instructions or data in central storage can be effected by specifying real central storage addresses and eliminate the DAT and AR translating process.

System for designating real main storage addresses in instructions while

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Wappingers Falls, NY, United States of America

David C Manners