公开(公告)号：ZA201904863B

公开(公告)日：2022-04-28

申请号：ZA201904863

申请日：2019-07-24

Applicant: IBM

Inventor： GIAMEI BRUCE CONRAD ,  JACOBI CHRISTIAN ,  SHUM CHUNG-LUNG ,  SCHMIDT DONALD WILLIAM ,  ROSA DANIEL ,  SAPORITO ANTHONY

Abstract: A computing environment facility is provided to extend a hold of a cache line in private (or local) cache exclusively after processing a storage operand request. The facility includes determining whether a storage operand request to a storage location shared by multiple processing units of the computing environment is designated hold. In addition, a determination is made whether a state of the corresponding cache line in private cache used for processing the storage operand request is owned exclusively. Based on determining that the storage operand request is designated hold, and that the state of the corresponding cache line in private cache used for processing the storage operand request is owned exclusively, continuing to hold the corresponding cache line in the private cache exclusively after completing processing of the storage operand request. The continuing to hold may include initiating a counter to facilitate the continuing hold for a desired, set interval.

公开(公告)号：CA3037433A1

公开(公告)日：2018-07-19

申请号：CA3037433

申请日：2018-01-03

Applicant: IBM

Inventor： GIAMEI BRUCE CONRAD ,  JACOBI CHRISTIAN ,  SHUM CHUNG-LUNG ,  SCHMIDT DONALD WILLIAM ,  ROSA DANIEL ,  SAPORITO ANTHONY

IPC: G06F12/0815 ,  G06F9/52 ,  G06F12/084

Abstract: A computing environment facility is provided to extend a hold of a cache line in private (or local) cache exclusively after processing a storage operand request. The facility includes determining whether a storage operand request to a storage location shared by multiple processing units of the computing environment is designated hold. In addition, a determination is made whether a state of the corresponding cache line in private cache used for processing the storage operand request is owned exclusively. Based on determining that the storage operand request is designated hold, and that the state of the corresponding cache line in private cache used for processing the storage operand request is owned exclusively, continuing to hold the corresponding cache line in the private cache exclusively after completing processing of the storage operand request. The continuing to hold may include initiating a counter to facilitate the continuing hold for a desired, set interval.

公开(公告)号：ZA201904787B

公开(公告)日：2022-04-28

申请号：ZA201904787

申请日：2019-07-19

Applicant: IBM

Inventor： GIAMEI BRUCE CONRAD ,  JACOBI CHRISTIAN ,  SHUM CHUNG-LUNG ,  SCHMIDT DONALD WILLIAM ,  ROSA DANIEL ,  SAPORITO ANTHONY

Abstract: Processing of a storage operand request identified as restrained is selectively, temporarily suppressed. The processing includes identifying a storage operand request as restrained, where the identifying includes obtaining, by a processing unit, an access intent instruction indicating an access intent associated with an operand of a next sequential instruction. The access intent indicates usage of the storage operand request is restrained. Further, the method includes determining whether a storage operand request is to a common storage location shared by multiple processing units of a computing environment and is identified restrained, and based on determining that the storage operand request is restrained, then temporarily suppressing requesting access to the common storage location pursuant to the storage operand request.

公开(公告)号：AU2018208453B2

公开(公告)日：2020-10-22

申请号：AU2018208453

申请日：2018-01-09

Applicant: IBM

Inventor： GIAMEI BRUCE CONRAD ,  JACOBI CHRISTIAN ,  SHUM CHUNG-LUNG ,  SCHMIDT DONALD WILLIAM ,  ROSA DANIEL ,  SAPORITO ANTHONY

IPC: G06F9/30

Abstract: Processing of a storage operand request identified as restrained is selectively, temporarily suppressed. The processing includes determining whether a storage operand request to a common storage location shared by multiple processing units of a computing environment is restrained, and based on determining that the storage operand request is restrained, then temporarily suppressing requesting access to the common storage location pursuant to the storage operand request. The processing unit performing the processing may proceed with processing of the restrained storage operand request, without performing the suppressing, where the processing can be accomplished using cache private to the processing unit. Otherwise the suppressing may continue until an instruction, or operation of an instruction, associated with the storage operand request is next to complete.

公开(公告)号：CA3037265A1

公开(公告)日：2018-07-19

申请号：CA3037265

申请日：2018-01-09

Applicant: IBM

Inventor： GIAMEI BRUCE CONRAD ,  JACOBI CHRISTIAN ,  SHUM CHUNG-LUNG ,  SCHMIDT DONALD WILLIAM ,  ROSA DANIEL ,  SAPORITO ANTHONY

IPC: G06F9/30

Abstract: Processing of a storage operand request identified as restrained is selectively, temporarily suppressed. The processing includes determining whether a storage operand request to a common storage location shared by multiple processing units of a computing environment is restrained, and based on determining that the storage operand request is restrained, then temporarily suppressing requesting access to the common storage location pursuant to the storage operand request. The processing unit performing the processing may proceed with processing of the restrained storage operand request, without performing the suppressing, where the processing can be accomplished using cache private to the processing unit. Otherwise the suppressing may continue until an instruction, or operation of an instruction, associated with the storage operand request is next to complete.

公开(公告)号：ZA201905199B

公开(公告)日：2021-04-28

申请号：ZA201905199

申请日：2019-08-06

Applicant: IBM

Inventor： GIAMEI BRUCE CONRAD ,  SCHMIDT DONALD WILLIAM ,  JACOBI CHRISTIAN ,  SAPORITO ANTHONY ,  ROSA DANIEL

Abstract: A facility is provided for collecting time-slice-instrumentation information during processing unit execution. The facility counts, at least in part, occurrence of a specified processing unit event during a time-slice of processing unit execution. The counted events occurring during a first interval of execution and a second interval of execution of the time-slice are retained. The first interval of execution is earlier in the time-slice than the second interval of execution, and the counted events facilitate adjusting performance of the processing unit. In an embodiment, the time-slice is a contiguous period of time of processing unit execution, and the specified processing unit event includes a cache event. The processing unit may interleave processing of multiple different units of work across multiple contiguous time-slices, and during a single time-slice, a single unit of work of the multiple different units of work is processed by the processing unit.

公开(公告)号：AU2018208419B2

公开(公告)日：2020-10-01

申请号：AU2018208419

申请日：2018-01-03

Applicant: IBM

Inventor： GIAMEI BRUCE CONRAD ,  JACOBI CHRISTIAN ,  SHUM CHUNG-LUNG ,  SCHMIDT DONALD WILLIAM ,  ROSA DANIEL ,  SAPORITO ANTHONY

IPC: G06F12/0815 ,  G06F9/52 ,  G06F12/084

Abstract: A computing environment facility is provided to extend a hold of a cache line in private (or local) cache exclusively after processing a storage operand request. The facility includes determining whether a storage operand request to a storage location shared by multiple processing units of the computing environment is designated hold. In addition, a determination is made whether a state of the corresponding cache line in private cache used for processing the storage operand request is owned exclusively. Based on determining that the storage operand request is designated hold, and that the state of the corresponding cache line in private cache used for processing the storage operand request is owned exclusively, continuing to hold the corresponding cache line in the private cache exclusively after completing processing of the storage operand request. The continuing to hold may include initiating a counter to facilitate the continuing hold for a desired, set interval.

公开(公告)号：AU2017392846B2

公开(公告)日：2020-09-17

申请号：AU2017392846

申请日：2017-12-15

Applicant: IBM

Inventor： GIAMEI BRUCE CONRAD ,  SCHMIDT DONALD WILLIAM ,  JACOBI CHRISTIAN ,  SAPORITO ANTHONY ,  ROSA DANIEL

IPC: G06F9/48 ,  G06F9/50

Abstract: A facility is provided for collecting time-slice-instrumentation information during processing unit execution. The facility counts, at least in part, occurrence of a specified processing unit event during a time-slice of processing unit execution. The counted events occurring during a first interval of execution and a second interval of execution of the time-slice are retained. The first interval of execution is earlier in the time-slice than the second interval of execution, and the counted events facilitate adjusting performance of the processing unit. In an embodiment, the time-slice is a contiguous period of time of processing unit execution, and the specified processing unit event includes a cache event. The processing unit may interleave processing of multiple different units of work across multiple contiguous time-slices, and during a single time-slice, a single unit of work of the multiple different units of work is processed by the processing unit.

公开(公告)号：AU2018208453A1

公开(公告)日：2019-06-13

申请号：AU2018208453

申请日：2018-01-09

Applicant: IBM

Inventor： GIAMEI BRUCE CONRAD ,  JACOBI CHRISTIAN ,  SHUM CHUNG-LUNG ,  SCHMIDT DONALD WILLIAM ,  ROSA DANIEL ,  SAPORITO ANTHONY

IPC: G06F9/30

Abstract: Processing of a storage operand request identified as restrained is selectively, temporarily suppressed. The processing includes determining whether a storage operand request to a common storage location shared by multiple processing units of a computing environment is restrained, and based on determining that the storage operand request is restrained, then temporarily suppressing requesting access to the common storage location pursuant to the storage operand request. The processing unit performing the processing may proceed with processing of the restrained storage operand request, without performing the suppressing, where the processing can be accomplished using cache private to the processing unit. Otherwise the suppressing may continue until an instruction, or operation of an instruction, associated with the storage operand request is next to complete.

公开(公告)号：AU2018208419A1

公开(公告)日：2019-06-13

申请号：AU2018208419

申请日：2018-01-03

Applicant: IBM

Inventor： GIAMEI BRUCE CONRAD ,  JACOBI CHRISTIAN ,  SHUM CHUNG-LUNG ,  SCHMIDT DONALD WILLIAM ,  ROSA DANIEL ,  SAPORITO ANTHONY

IPC: G06F12/0815 ,  G06F9/52 ,  G06F12/084

Abstract: A computing environment facility is provided to extend a hold of a cache line in private (or local) cache exclusively after processing a storage operand request. The facility includes determining whether a storage operand request to a storage location shared by multiple processing units of the computing environment is designated hold. In addition, a determination is made whether a state of the corresponding cache line in private cache used for processing the storage operand request is owned exclusively. Based on determining that the storage operand request is designated hold, and that the state of the corresponding cache line in private cache used for processing the storage operand request is owned exclusively, continuing to hold the corresponding cache line in the private cache exclusively after completing processing of the storage operand request. The continuing to hold may include initiating a counter to facilitate the continuing hold for a desired, set interval.