Abstract: A DEFLATE Conversion Call general-purpose processor instruction. An instruction is obtained by a general-purpose processor of the computing environment. The instruction is a single architected instruction of an instruction set architecture that complies to an industry standard for compression. The instruction is executed, and the executing includes transforming, based on a function to be performed by the instruction being a compression function or a decompression function, state of input data between an uncompressed form of the input data and a compressed form of the input data to provide a transformed state of data. The transformed state of the data is provided as output to be used in performing a task.

Abstract: Embodiments are described for generating, by a processor, a first event record in response to an event being performed by a computer; and generating, by the processor, a second event record in response to the first event record being generated, wherein the second event record comprises a signature corresponding to the first event record.

Abstract: A computer system includes a hardware controller and an internal millicode storage area. The controller includes an accelerator that decompresses a data stream requested by an application. The internal millicode storage area can store a compression dictionary library including a plurality of different pre-defined compression dictionaries. A host system includes a dictionary manager that determines a compression dictionary from the plurality of different pre-defined compression dictionaries included in the dictionary library to decompress the data stream. The accelerator can access the internal millicode storage area to obtain the determined compression dictionary, and to decompress the data stream according to the determined compression dictionary.

Abstract: Systems, methods, and computer-readable media are described for performing data compression in a manner that does not require software to make a call to hardware to close a compressed data block, thereby reducing computational overhead. In response to a request from software to data compression hardware for a data encoding, the hardware may return the data encoding as well as an end-of-block symbol encoding value and bit length. The hardware may load the end-of-block symbol encoding value and bit length into a different area in the returned structure such that the software has direct access to the value. When the software determines that a block should be closed, the software may retrieve the end-of-block symbol and insert it into the block without needing to make a call to hardware. The software may then make a call to the hardware to request a new data encoding for subsequent compressed data blocks.

Abstract: A computer system includes a plurality of hardware processors, and a hardware accelerator. A first processor among the plurality of processor runs an application that issues a data compression request to compress or decompress a data stream. The hardware accelerator selectively operates in different modes to compresses or decompresses the data stream. Based on a selected mode, the hardware accelerator can utilize a different number of processors among the plurality of hardware to compress or decompress the data stream.

Abstract: Embodiments of the invention include methods and systems for hybrid acceleration in a processing environment. Aspects of the invention include transmitting, by a first computing system to a second computing system, a request for access to an accelerator. The first computing system receives access information for a plurality of accelerators from the second computing system responsive to the request. The first computing system analyzes the access information for the plurality of accelerators to identify a first accelerator from the plurality of accelerators and offloads a first processing job to the first accelerator utilizing the access information.

Abstract: Embodiments of the invention include methods and systems for hybrid acceleration in a processing environment. Aspects of the invention include transmitting, by a first computing system to a second computing system, a request for access to an accelerator. The first computing system receives access information for a plurality of accelerators from the second computing system responsive to the request. The first computing system analyzes the access information for the plurality of accelerators to identify a first accelerator from the plurality of accelerators and offloads a first processing job to the first accelerator utilizing the access information.

Abstract: A computer system includes a host system, a hardware controller and an operating system. The host system runs an application that includes at least one compression library and that outputs a compression request to compress a data stream having an initial data-representation size. The hardware controller compresses the data stream according to an encoding scheme indicated by the compression library to generate a compressed data stream having a reduced data-representation size with respect to the initial data-representation size. The operating system provides a communication interface between the hardware controller and the application allowing the exchange of protocol data blocks between the application and the hardware controller. A protocol data block identifies an update status of the compression library and the OS. The computer system selectively operates in a first compression mode and a second compression based on the update status, thereby varying a compression ratio of the compressed data stream.

Abstract: A computer system includes a plurality of hardware processors, and a hardware accelerator. A first processor among the plurality of processor runs an application that issues a data compression request to compress or decompress a data stream. The hardware accelerator selectively operates in different modes to compresses or decompresses the data stream. Based on a selected mode, the hardware accelerator can utilize a different number of processors among the plurality of hardware to compress or decompress the data stream.

Abstract: A system and method of automating software fix installation rate management for a software package including two or more hierarchical levels include obtaining information from two or more customer systems. The information indicates software fixes installed at each of the two or more customer systems. The method also includes generating a report corresponding with each of the two or more customer systems. The report indicates a number of the software fixes installed at the respective one of the two or more customer systems as compared with an average number of the software fixes installed at the two or more customer systems at one of the two or more hierarchical levels. Determining whether to increase, decrease, or maintain a rate of installation of the software fixes at each of the two or more customer systems is based on the report corresponding with each of the two or more customer systems.

Abstract: According to aspects of the present disclosure, a computer-implemented method includes generating a metadata record for each event record of a subset of a plurality of event records, the metadata record being one of a plurality of metadata records. The method further includes assigning a metadata indicator to each event record of the subset of the plurality of event records to indicate that the event record is associated with a metadata record. The method further includes assigning, for each event record of the subset of the plurality of event records and the metadata record associated therewith, a timestamp. The method further includes matching for each event record of the subset of the plurality of event records, one of the plurality of metadata records with the event record based at least in part on the metadata indicator and the timestamp.

Abstract: A computer system includes a hardware controller and an internal millicode storage area. The controller includes an accelerator that decompresses a data stream requested by an application. The internal millicode storage area can store a compression dictionary library including a plurality of different pre-defined compression dictionaries. A host system includes a dictionary manager that determines a compression dictionary from the plurality of different pre-defined compression dictionaries included in the dictionary library to decompress the data stream. The accelerator can access the internal millicode storage area to obtain the determined compression dictionary, and to decompress the data stream according to the determined compression dictionary.

Abstract: Embodiments of the present invention provide systems and methods for generating a set of test cases using a base test program. The base test program may be used as both a functional drive and as a performance measuring test case. From the base test program, additional key and value pairs may be added to the base test program to force specific test scenarios.

Abstract: A computer program product for data compression is provided. The computer program product includes a computer readable storage medium having program instructions embodied therewith. The program instructions are readable and executable by a processing circuit to cause the processing circuit to execute software compression for first requests for data compression that have respective sizes below a predefined threshold, forward second requests for data compression having respective sizes above the predefined threshold to a hardware accelerator and maintain a persistence of a compression dictionary used for executing the second requests across executions of the first and second requests.

Abstract: A computer system includes a hardware controller and an internal millicode storage area. The controller includes an accelerator that decompresses a data stream requested by an application. The internal millicode storage area can store a compression dictionary library including a plurality of different pre-defined compression dictionaries. A host system includes a dictionary manager that determines a compression dictionary from the plurality of different pre-defined compression dictionaries included in the dictionary library to decompress the data stream. The accelerator can access the internal millicode storage area to obtain the determined compression dictionary, and to decompress the data stream according to the determined compression dictionary.

Abstract: A computer system includes a hardware controller and a host system. The hardware controller includes an accelerator to encode a data stream requested by an application based on a version of the accelerator. The host system executes a compression library linked to the application. The compression library operates according to one or more behavior characteristics to execute a compression algorithm that compresses the encoded data provided by the hardware controller. The behavior characteristics of the compression library is actively changed based on the version of the accelerator.

Abstract: Systems, methods, and computer-readable media are described for performing data compression in a manner that does not require software to make a call to hardware to close a compressed data block, thereby reducing computational overhead. In response to a request from software to data compression hardware for a data encoding, the hardware may return the data encoding as well as an end-of-block symbol encoding value and bit length. The hardware may load the end-of-block symbol encoding value and bit length into a different area in the returned structure such that the software has direct access to the value. When the software determines that a block should be closed, the software may retrieve the end-of-block symbol and insert it into the block without needing to make a call to hardware. The software may then make a call to the hardware to request a new data encoding for subsequent compressed data blocks.

Abstract: A computer system includes a plurality of hardware processors, and a hardware accelerator. A first processor among the plurality of processor runs an application that issues a data compression request to compress or decompress a data stream. The hardware accelerator selectively operates in different modes to compresses or decompresses the data stream. Based on a selected mode, the hardware accelerator can utilize a different number of processors among the plurality of hardware to compress or decompress the data stream.

Abstract: A computer system includes a host system, a hardware controller and an operating system. The host system runs an application that includes at least one compression library and that outputs a compression request to compress a data stream having an initial data-representation size. The hardware controller compresses the data stream according to an encoding scheme indicated by the compression library to generate a compressed data stream having a reduced data-representation size with respect to the initial data-representation size. The operating system provides a communication interface between the hardware controller and the application allowing the exchange of protocol data blocks between the application and the hardware controller. A protocol data block identifies an update status of the compression library and the OS. The computer system selectively operates in a first compression mode and a second compression based on the update status, thereby varying a compression ratio of the compressed data stream.

Abstract: An approach for optimizing the use of accelerators. The approach includes receiving a job request from an application. Furthermore, a network mapping is created of one or more accelerators associated with the job request based on a utilization component. The network mapping is sent to the application to utilize the one or more identified accelerators directly by the application.