International Business Machines Corporation

Andrew Dwight Dingsor

Dana Lea Price

Todd Eric Kaplinger

Gal A Shachor

Artem Spector

Michael R Rheinheimer

Corville O Allen

Joseph N Kozhaya

Craig Andrew Lanzen

Stephen M Fontes

Thomas Bitonti

Harley Andrew Stenzel

Dana Rieger Thalheimer

A computer-implemented method, computer program product, and system is provided for determining requirements for testing software. In an implementation, a method may include inspecting contents of a test case, including source code of the test case. The method may also include identifying at least one of: at least one characteristic of a test machine and at least one characteristic of a resource required to execute the test case correctly. The method may further include compiling a list of requirements for the test case to execute correctly based upon, at least in part, the at least one of the at least one characteristic of the test machine and the at least one characteristic of the resource.

System and method for determining requirements for testing software

Embodiments of the present invention provide a method, system and computer program product for workload deployment density management for a multi-stage architecture implemented within a multi-tenant computing environment. The method includes receiving different requests from different tenants of a multi-tenant computing environment to deploy respectively different application instances of respectively different computer programs into different nodes of the host computing system. The method also includes determining from each request an associated stage of a software lifecycle for a corresponding one of the application instances. Finally, the method includes deploying each of the application instances into a particular one of the nodes depending upon an associated stage of each of the application instances so that each of the nodes hosts different application instances for different tenants of a common stage of the software lifecycle.

Workload deployment density management for a multi-stage computing architecture implemented within a multi-tenant computing environment

A system for receiving local point of interest data is presented. The local point of interest data for a local geographic area is received by a geographic location device via a supported protocol. The local point of interest data includes information regarding one or more local points of interest in the local geographic area. The received local point of interest data is cached with existing point of interest data and maps within a cache in the geographic location device. Then, it is determined whether any time-sensitive point of interest data in the cache has expired. In response to determining that time-sensitive point of interest data in the cache has expired, the expired time-sensitive point of interest data is removed from the cache to form current local point of interest data for the local geographic area. Then, the current local point of interest data is displayed in a display device.

Local transmission of point of interest data to a global positioning system receiver

A method of processing a client packet from a client in a NAT (Network Address Translation & Port Mapping) system including a NAT machine and a plurality of servers. The method includes preparing a response packet responsive to the client packet, performing, by one of the servers, a translation operation on the response packet to produce a translated response packet, and transmitting the translated response packet from the server to the client, thereby bypassing the NAT machine. All subsequent response packets in the current connection can be translated and transmitted from the server directly to the client.

Network Address Translation and Port Mapping

A method and apparatus in a data processing system for binding a plurality of server daemons to a destination address and port. A request for a connection from a client is routed using a destination address. A server daemon within the plurality of server daemons is selected to form a selected server daemon. The request is routed to the selected server daemon by changing the destination address to a server address for the selected server daemon. When a response is returned, source address in the response is changed to the original destination address.

Method and apparatus load balancing server daemons within a server

A method, system, and computer program product for improving the performance, reliability, and recoverability of a computer running a multi-threaded server application. The described techniques enable synchronization requirements to be minimized. A policy is enforced which limits the number of worker threads currently assigned to processing connections to a particular host. Thus if a host fails, some number of worker threads continue to actively service connections to other hosts. The policy may use static or dynamic limits. A single limit may pertain to all hosts, or host-specific limits may be used.

Congestion avoidance for threads in servers

A method, apparatus and article of manufacture for compensating for carrier frequency error is disclosed. An FM signal is received from an antenna and the received FM signal is provided to receiver. The receiver takes the FM signal at the carrier frequency and outputs a baseband signal. This baseband signal is then processed by a DSP which provides carrier frequency compensation and decoding to produce a data stream that a microprocessor provides to a host device. Frequency differences between the FM carrier frequency and the frequency used to demodulate the FM signal can shift the DC bias level of the baseband signal. The DSP compensates for such frequency difference by using a receive compensation value and applying it to each received signal sample. When transmitting, data to be transmitted is provided from the host device to the DSP via a microprocessor. The DSP provides encoding and carrier frequency compensation of the data to provide an baseband signal to a transmitter that modulates the baseband signal to produce a FM signal at a desired carrier frequency. Frequency differences between the desired FM carrier frequency and the frequency used to modulate the baseband signal can produce errors in receiver systems. The DSP compensates for such a frequency difference by using a transmit compensation value and applying it to each encoded signal sample.

Apparatus, method and article of manufacture for carrier frequency

Described is a method, apparatus, and article of manufacture to minimize radio data modem receive errors when a base station keys up. It applies to an intermittently keyed, multiple base station, single frequency reuse, FM modulated, radio data network such as the ARDIS network. Compensation is provided for the fact that each base station in the network may have a different transmit FM deviation level. Since these networks typically use the same base station to transmit to any one radio data modem over periods of time, and since the modem receiver can measure and remember the FM deviation level of each base station, a modem can compensate by using the FM deviation value of its 'present' base station as the starting value for its automatic deviation control algorithm. By seeding the algorithm with the actual value for the 'present' base station, receive data errors are reduced during the critical time when the base station is keying up. As the geographical position of the modem changes, or as radio conditions vary, the network may select a different base station to transmit to a modem. The modem will detect this change, and dynamically change its compensation to match the new 'present' base station.

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Durham, NC, United States of America

Andrew Dwight Dingsor