International Business Machines Corporation

Gregory Allan Olson

Scott Alan Moore

Jeremy Alan Arnold

Eric J Stec

Curtis Duane Kronlund

Mark Douglas Schroeder

Charles Richard Farrell

In an embodiment, an indicator is set to indicate that all of a plurality of most significant bytes of characters in a character array are zero. A first index and an input character are received. The input character comprises a first most significant byte and a first least significant byte. The first most significant byte is stored at a first storage location and the first least significant byte is stored at a second storage location, wherein the first storage location and the second storage location have non-contiguous addresses. If the first most significant byte does not equal zero, the indicator is set to indicate that at least one of a plurality of most significant bytes of the characters in the character array is non-zero. The character array comprises the first most significant byte and the first least significant byte.

Storing the most significant and the least significant bytes of characters at non-contiguous addresses

A method, apparatus, and program product are provided for managing power consumption in a computer system based on the degree with which performance of tasks can be degraded in order to save power. A criticality value controls the degree with which performance of a task may be degraded is associated with tasks within a computer system. Power consumption of the computer system is then managed based on the criticality values associated with tasks executing within the computer system. A reduction in computer system power consumption can be realized by degrading the performance of non-critical tasks, which is accomplished by reducing the power consumed by at least a portion of the computer system. Power can also be reduced by scheduling non-critical tasks to portions of the computer system and reducing power consumption of other portions of the computer system.

Reducing power consumption of components based on criticality of running tasks independent of scheduling priority in multitask computer

An apparatus, program product and method utilize metadata collected for a lock in a computer program to determine an optimal lock acquisition strategy for the lock. The metadata is typically collected via profiling of the computer program to determine a wait characteristic for the lock in the particular runtime environment in which the computer program executes, and the metadata is used to select from among different lock access implementations to be used to attempt to acquire the lock, often enabling an optimum lock access implementation to be selected for a lock.

Profile-driven lock handling

In an embodiment, an instant message is received that includes data, a privacy indication, and an override indication. In an embodiment, if the privacy indication specifies that the data is non-private, then the data is presented. But, if the privacy indication specifies that the data is private, then a privacy notice is presented and the data is hidden until an acknowledgment of the privacy notice is received. The privacy notice may include a prompt for the acknowledgment. In an embodiment, if the privacy indication specifies that the data is private and the override indication allows the privacy indication to be overridden, the data is presented. In another embodiment, if the privacy indication specifies that the data is private, the override indication allows the privacy indication to be overridden, and a time period since a user interface device received input is less than a threshold amount of time, then the data is presented.

Instant messages with privacy notices

Methods, systems and computer program products for CPU signaturing to aide in performance analysis. Exemplary embodiments include a performance analysis method including identifying a workload having one or more testcases, assigning a CPU signature to each of the one or more testcases, calling a CPU signature application programming interface that toggles the CPU to generate the CPU signature, passing four parameters to the CPU signature application programming interface, prior to running each of the one or more testcases of the workload, generating the CPU signature, dynamically determining a run order of the one or more testcases at a run time of the workload and reviewing performance data during the running of each of the one or more testcases, each of the one or more testcases being identifiable by its respective CPU signature.

Methods, systems and computer program products for CPU signaturing to aide in performance analysis

An apparatus, program product and method improve management of available computing resources by adjusting use of the resource over a first interval according to actual use of the resource during a second interval. This feature enables a computing resource to exceed its normal limits during the first interval of operation. Use during the second interval may be limited to balance out the burst, or excessive resource usage of the first interval.

System for dynamic processor enablement

A portable phone a portable phone is equipped with a personal area network (PAN) detection mechanism to detect all portable phones and electronic identifiers (e.g., key fobs) in its PAN. A buddy list is included in the portable phone. If an electronic identifier is detected, such as from a key fob, but its corresponding portable phone is not, a proxy signal mechanism signals to the wireless telephone network that the phone may receive calls for a different phone. In response, the wireless telephone network routes calls for the different phone to the proxy phone instead. In this manner a phone may change functions automatically as devices enter and leave the PAN.

Growing community of inventors

Rochester, MN, United States of America

Gregory Allan Olson