International Business Machines Corporation

Donald Arthur Morrison

Keith D Cramer

Michael Joseph Corrigan

Mark Robert Funk

Richard Karl Kirkman

Nicholas Francis Campion

Timothy Joseph Torzewski

Brian Eldridge Clark

Paul LuVerne Godtland

Daniel Joseph Strauss

Scott Alan Plaetzer

Arthur Douglas Smet

Robert Carl Seemann

Patrick James Christenson

Robert Anthony Petrillo

Larry Keith McMains

A method, system, and computer program product are provided for selectively discarding packets in a network device. The method includes receiving an upstream bandwidth saturation indicator for a queue in the network device, and identifying one or more codecs employed in packets in the queue when the upstream bandwidth saturation indicator indicates saturation. The method further includes determining a packet discarding policy based on the one or more codecs, and discarding packets in accordance with the packet discarding policy.

Methods, systems, and computer program products for selectively discarding packets

Enabling unified communications capabilities in applications without the requirement to modify application programs to enable connecting to a unified communications capabilities infrastructure. Specifically, the invention provides systems and methods for enabling unified communications capabilities in web-based, or other, applications by monitoring the outbound data stream within a server, using pattern recognition algorithms to detect unified communication data items, and inserting control codes into the outbound data stream that will enable the unified communications functions around those communication data items. These control codes may initiate communications programs that have been appropriately addressed to contact the person or entity associated with the communications data item. These control codes may also enable initiating application programs not used for communications.

Method for automatically enabling unified communications for web applications

An apparatus and method provide simultaneous local and global addressing capabilities in a computer system. A global address space is defined that may be accessed by all processes. In addition, each process has a local address space that is local (and therefore available) only to that process. An address space processor is implemented in software to perform system functions that distinguish between local addresses and global addresses. In the preferred embodiments, the local address space has a size that is a multiple of the size of a segment of global address space. When the hardware indicates a page fault, the address space processor determines whether the address being translated is a local address or a global address. If the address is a local address, the address space processor uses a local directory to process the page fault. If the address is a global address, the address space processor uses a global directory to process the page fault. When the hardware indicates an addressing error because a computed address crosses a global segment boundary, the address space processor determines whether the address is a local address or a global address. If the address is a global address, the address space processor indicates an addressing error. If the address is a local address, the address space processor determines whether the address is within the process' local address space, and indicates an addressing error if the address is outside the process' local address space. Instructions are allowed to operate on both local and global addresses because the address space processor handles either type of address whenever software assistance is required, such as for servicing a page fault or checking a segment boundary crossing. In addition, the address space processor dynamically checks the addressing compatibility of called code before passing control to the called code.

Apparatus and method for providing simultaneous local and global addressing using software to distinguish between local and global addresses

According to the present invention, pool allocation and process assignment mechanisms create process nodal affinity in a NUMA multiprocessor system for enhanced performance. The multiprocessor system includes multiple interconnected multiprocessing nodes that each contain one or more processors and a local main memory, the system main storage being distributed among the local main memories of the multiprocessing nodes in a NUMA architecture. A pool reservation mechanism reserves pools of memory space within the logical main storage, and the pool allocation mechanism allocates those pools to real pages in the local main-memory of multiprocessing nodes. Processes to be created on the multiprocessor are given an attribute that indicates an associated pool. Upon creation, the process assignment mechanism will only assign a process to a multiprocessing node that has been allocated the pool indicated by the process' attribute. This process nodal affinity increases accesses by the assigned process to local main storage of that node, thereby enhancing system performance.

Process assignment by nodal affinity in a myultiprocessor system having

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Rochester, MN, United States of America

Donald Arthur Morrison