International Business Machines Corporation

Mark Wayne VanderWiele

Michael Richard Cooper

Mark Joseph Hamzy

Michael Thomas Strosaker

Joel Howard Schopp

Nathan Fontenot

Patrick Edward Nogay

Jeffrey David George

Christopher J Arges

Scott Thomas Jones

Marc Leslie Cohen

Jacob Lorien Moilanen

Ryan Patrick Grimm

Keith Edward Carter

Michael Wayne Brown

Rabindranath Dutta

Ravi Ravisankar

Kirill M Osipov

Peter A Zannucci

Lee Martin Tartak

Bryan Douglas Dobbs

David Harvey Fritz

According to one embodiment of the present disclosure, an approach is provided in which a processor selects a page of data that is compressed by a first compression algorithm and stored in a memory block. The processor identifies a utilization amount of the compressed page of data and determines whether the utilization amount meets a utilization threshold. When the utilization amount fails to meet the utilization threshold, the processor uses a second compression algorithm to recompresses the page of data.

Multi-level memory compression

A method, system and computer program product for efficiently utilizing resources in processing recurring events. Recurring events from one or more event type sources (heart rate monitor) sensed by various sensors are detected. An event type (e.g., heart rate data) for each detected recurring event is identified. A user profile associated with the identified event type is then analyzed to determine whether the associated sensed recurring event is to be transmitted to the event processing device. The user profile contains a set of conditions which need to be satisfied before the recurring event is transmitted to the event processing device. If the set of conditions in the user profile is not satisfied, then the recurring event is not transmitted to the event processing device. In this manner, by not transmitting the recurring event, power and consumption utilization are reduced for both the event emitting device and the event processing device.

Utilizing a profile to prevent recurring events from being transmitted to the event processing device that are not necessary to be processed by event processing device

Each time a currently scheduled virtual machine (VM) accesses a hardware resource over a bus for the hardware resource via the currently scheduled VM running on a processor, a hardware component adjusts a bandwidth counter associated with usage of the bus for the hardware resource, without involvement of the currently scheduled VM or a hypervisor managing the currently scheduled VM. Responsive to the bandwidth counter reaching a threshold value, the hardware component issues an interrupt for handling by the hypervisor to maintain bandwidth quality-of-service (QoS) of bus bandwidth related to the hardware resource. Upon expiration of a regular time interval prior to the bandwidth counter reaching the threshold value, the hardware component resets the bandwidth counter to a predetermined value associated with the currently scheduled VM, without involvement of the currently scheduled VM or the hypervisor; the hardware component does not issue an interrupt. The hardware resource can be memory.

Maintaining hardware resource bandwidth quality-of-service via hardware counter

Methods and arrangements to assign locks to threads are discussed. Embodiments include transformations, code, state machines or other logic to assign locks to threads. Embodiments may include setting a window of time at the end of a time slice of a thread. The embodiment may also involve prohibiting the thread from acquiring a lock during the window of time, based upon determining that the thread is within the window of time and determining that the thread does not hold any locks. Other embodiments include an apparatus to assign locks to threads and a computer program product to assign locks to threads.

Lock windows for reducing contention

Illustrative embodiments provide a computer implemented method, a data processing system and a computer program product for lock contention reduction. In one illustrative embodiment, the computer implemented method provides a lock to an active thread, increments a lock counter, receives a request to de-schedule the active thread, and determines whether the lock is held by the active thread. The computer implemented method, responsive to a determination that the lock is held by the active thread, adds a first pre-determined amount to a time slice of the active thread.

Reducing lock contention by adding a time slice to an active thread holding a lock

A method, system and computer program product in a data processing system for printing a disjoint web object and content of a web page is provided. Responsive to presenting the web page by the browser, an embedded tag is presented as the disjoint web object. The disjoint web object is then printed based on the embedded tag, wherein content relative to the disjoint web object is printed along with content of the web page.

Data processing system for converting content relative to a space used as an advertising medium into a printable object

A method for serving an image from a server to a client, e.g., a computer having a browser or other graphics viewing engine. The user of the client first specifies a set of one or more bitmap characteristics for an image transfer, with at least one of the bitmap characteristics including a number of bits per pixel. Preferably, this specification is accomplished using an applet or other piece of code that is downloaded to the client from the server. Later, when the server receives a client request that includes data identifying a specified bitmap characteristic, a server processing routine (e.g., a servlet) generates a version of the image that conforms to the specified bitmap characteristic. This version is then delivered back to the client in response to the original request. In this way, the user of the client machine can control the particular characteristics of the image files that are delivered to his or her machine.

Method for enabling a client to specify the characteristics of an image to be downloaded from a server

The system, method, and program of the invention enables a Web server to ensure that any prerequisite resource is served before, or in conjunction with, a requested resource. Upon receipt of a request for a resource, e.g., a page, the Web server determines if the requested resource requires a prerequisite resource. If it does, a different resource is sent that has been modified to include the prerequisite resource. In a further embodiment, the Web server keeps track of each client's request for a prerequisite resource in order to determine whether the prerequisite resource had been previously requested when a resource is requested that requires the prerequisite resource. The different resource is sent if the resource requires a prerequisite resource and if it is determined that the previous request by the requester for the prerequisite resource has not been made within a configurable amount of time or within a predetermined number of hits.

Protecting resource URLs from being served without a base web page

A method and apparatus in a data processing system for processing a print job. A call is received from an application to print the print job to a selected printer, wherein the print job includes a request to use a hardware service. A print preview of the print job prior to printing the print job is provided. Responsive to receiving an indication that the print job is to be printed after providing the print preview, the print job is sent to a device driver for the selected printer to print the print job. A determination is made as to whether the selected printer supports the hardware service. Responsive to a determination that the hardware service is unsupported by the selected printer, the hardware service is provided using a software simulation.

Method and apparatus for supporting application and device independent print support

Data is received from a memory, which includes bitmap images, for output on an output device. The images may be stored in compressed or uncompressed form. The operating system, application or generic graphics environment program interface, queries the printer driver for the types of image compression formats supported by the printer. If the image is available in a compatible compressed format, that compressed image is read from memory. Alternatively or in addition, the best possible compression format supported by the printer is selected from the formats available in the printer driver. The image is then loaded in a printer compatible compression format or compressed using the selected format. The image is spooled in the selected compression format. The image file may be spooled as a raw file or metafile depending on the embodiment used. When needed by the printer or video display, the spool file containing the compressed image is accessed from storage, and the compressed image is sent directly to the printer or video display without allocating memory for decompressing the bitmap image or decompressing the image.

Method and apparatus for reducing image data storage and processing based on device supported compression techniques

A method and apparatus in a distributed data processing system for controlling printing. An interface is presented, wherein the interface allows for association of a logical font with a number of system fonts on a per printer queue basis. Responsive to a print request, the print request is printed using the system font associated with the logical font for that print request.

Growing community of inventors

Austin, TX, United States of America

Mark Wayne VanderWiele