Abstract: A plurality of processing entities are maintained. A plurality of task control block (TCB) groups are generated, wherein each of the plurality of TCB groups are restricted to one or more different processing entities of the plurality of processing entities. A TCB is assigned to one of the plurality of TCB groups, at TCB creation time.

Abstract: A plurality of dispatch queues corresponding to a plurality of processing entities are maintained, wherein each dispatch queue includes one or more task control blocks or is empty, and wherein an ordered list of dispatch queues is maintained for each processing entity of the plurality of processing entities. A state for each of the plurality of dispatch queues is determined and the determined state is compared to a desired state for the plurality of dispatch queues. A task control block is moved from one dispatch queue to another dispatch queue, in response to the comparing of the determined state to the desired state for the plurality of dispatch queues.

Abstract: A plurality of processing entities are maintained. A plurality of task control block (TCB) groups are generated, wherein each of the plurality of TCB groups are restricted to one or more different processing entities of the plurality of processing entities. A TCB is assigned to one of the plurality of TCB groups, at TCB creation time.

Abstract: A plurality of ordered lists of dispatch queues corresponding to a plurality of processing entities are maintained, wherein each dispatch queue includes one or more task control blocks or is empty. A determination is made as to whether a primary dispatch queue of a processing entity is empty in an ordered list of dispatch queues for the processing entity. In response to determining that the primary dispatch queue of the processing entity is empty, a task control block is selected for processing by the processing entity from another dispatch queue of the ordered list of dispatch queues for the processing entity, wherein the another dispatch queue from which the task control block is selected meets a threshold criteria for the processing entity.

Abstract: Link speed recovery in a data storage system in accordance with the present description includes, in one aspect of the present description, repeating performance of a main loop of sequential link speed recovery commands a predetermined maximum number of times. In one embodiment, main loop performance of link speed recovery commands includes repeating performance of a subloop of sequential link speed recovery commands within each main loop performance a predetermined maximum number of times. As a result of repeating performance of a subloop of sequential link speed recovery commands within each main loop performance, and repeating performance of a main loop of sequential link speed recovery commands in accordance with one embodiment, reliability of link speed recovery to full link speed may be improved. Other aspects and advantages may be realized, depending upon the particular application.

Abstract: A plurality of processing entities are maintained. An indication is made of a primary processing entities group for a task control block (TCB). An indication is made of a secondary processing entities group for the TCB. In response to determining that the secondary processing entities group has processing cycles available for processing additional TCBs, the TCB is moved from the primary processing entities group to the secondary processing entities group for processing.

Abstract: A plurality of ordered lists of dispatch queues corresponding to a plurality of processing entities are maintained, wherein each dispatch queue includes one or more task control blocks or is empty. A determination is made as to whether a primary dispatch queue of a processing entity is empty in an ordered list of dispatch queues for the processing entity. In response to determining that the primary dispatch queue of the processing entity is empty, a task control block is selected for processing by the processing entity from another dispatch queue of the ordered list of dispatch queues for the processing entity, wherein the another dispatch queue from which the task control block is selected meets a threshold criteria for the processing entity.

Abstract: A plurality of processing entities are maintained. A plurality of task control block (TCB) groups are generated, wherein each of the plurality of TCB groups are restricted to one or more different processing entities of the plurality of processing entities. A TCB is assigned to one of the plurality of TCB groups, at TCB creation time.

Abstract: A plurality of ordered lists of dispatch queues corresponding to a plurality of processing entities are maintained, wherein each dispatch queue includes one or more task control blocks or is empty. A determination is made as to whether a primary dispatch queue of a processing entity is empty in an ordered list of dispatch queues for the processing entity. In response to determining that the primary dispatch queue of the processing entity is empty, a task control block is selected for processing by the processing entity from another dispatch queue of the ordered list of dispatch queues for the processing entity, wherein the another dispatch queue from which the task control block is selected meets a threshold criteria for the processing entity.

Abstract: A plurality of processing entities are maintained. An indication is made of a primary processing entities group for a task control block (TCB). An indication is made of a secondary processing entities group for the TCB. In response to determining that the secondary processing entities group has processing cycles available for processing additional TCBs, the TCB is moved from the primary processing entities group to the secondary processing entities group for processing.

Abstract: A plurality of ordered lists of dispatch queues corresponding to a plurality of processing entities are maintained, wherein each dispatch queue includes one or more task control blocks or is empty. A determination is made as to whether a primary dispatch queue of a processing entity is empty in an ordered list of dispatch queues for the processing entity. In response to determining that the primary dispatch queue of the processing entity is empty, a task control block is selected for processing by the processing entity from another dispatch queue of the ordered list of dispatch queues for the processing entity, wherein the another dispatch queue from which the task control block is selected meets a threshold criteria for the processing entity.

Abstract: A computational device maintains a spinlock for exclusive access of a resource by a process of a plurality of processes. In response to determining by the process that a turn for securing the spinlock has not arrived for the process, a sleep duration is determined for the process, prior to making a next attempt to secure the spinlock.

Abstract: A plurality of dispatch queues corresponding to a plurality of processing entities are maintained, wherein each dispatch queue includes one or more task control blocks or is empty, and wherein an ordered list of dispatch queues is maintained for each processing entity of the plurality of processing entities. A state for each of the plurality of dispatch queues is determined and the determined state is compared to a desired state for the plurality of dispatch queues. A task control block is moved from one dispatch queue to another dispatch queue, in response to the comparing of the determined state to the desired state for the plurality of dispatch queues.

Abstract: A plurality of processing entities are maintained. An indication is made of a primary processing entities group for a task control block (TCB). An indication is made of a secondary processing entities group for the TCB. In response to determining that the secondary processing entities group has processing cycles available for processing additional TCBs, the TCB is moved from the primary processing entities group to the secondary processing entities group for processing.

Abstract: Mechanisms for improving computing system performance by a processor device. System resources are organized into a plurality of groups. Each of the plurality of groups is assigned one of a plurality of predetermined task pools. Each of the predetermined task pools has a plurality of tasks. Each of the plurality of groups corresponds to at least one physical boundary of the system resources such that a speed of an execution of those of the plurality of tasks for a particular one of the plurality of predetermined task pools is optimized by a placement of an association with the at least one physical boundary and the plurality of groups.

Abstract: A computational device maintains a spinlock for exclusive access of a resource by a process of a plurality of processes. In response to determining by the process that a turn for securing the spinlock has not arrived for the process, a sleep duration is determined for the process, prior to making a next attempt to secure the spinlock.

Abstract: A computational device maintains a spinlock for exclusive access of a resource by a process of a plurality of processes. In response to determining by the process that a turn for securing the spinlock has not arrived for the process, a sleep duration is determined for the process, prior to making a next attempt to secure the spinlock.

Abstract: A plurality of processing entities are maintained. A plurality of task control block (TCB) groups are generated, wherein each of the plurality of TCB groups are restricted to one or more different processing entities of the plurality of processing entities. A TCB is assigned to one of the plurality of TCB groups, at TCB creation time.

Abstract: A plurality of processing entities are maintained. An indication is made of a primary processing entities group for a task control block (TCB). An indication is made of a secondary processing entities group for the TCB. In response to determining that the secondary processing entities group has processing cycles available for processing additional TCBs, the TCB is moved from the primary processing entities group to the secondary processing entities group for processing.

Abstract: A plurality of ordered lists of dispatch queues corresponding to a plurality of processing entities are maintained, wherein each dispatch queue includes one or more task control blocks or is empty. A determination is made as to whether a primary dispatch queue of a processing entity is empty in an ordered list of dispatch queues for the processing entity. In response to determining that the primary dispatch queue of the processing entity is empty, a task control block is selected for processing by the processing entity from another dispatch queue of the ordered list of dispatch queues for the processing entity, wherein the another dispatch queue from which the task control block is selected meets a threshold criteria for the processing entity.