Determining task pools for dispatching tasks

A computer system for managing locks to tracks from storage cached in memory, comprising:

• a processor set;
• one or more computer-readable storage media;
• and
• program instructions stored on the one or more computer-readable storage media to cause the processor set to perform operations comprising:
• providing task pools of task resources assigned to groups of tracks and to processors, wherein task resources allocated to a task to access a requested track are assigned from a task pool assigned to a group of tracks including the requested track, wherein the task is processed by one of the processors assigned to the task pool;
• determining whether a least busy task pool having a lowest task resource allocation latency among the task pools satisfies a low latency criteria with respect to task resource allocation latencies of other task pools;
• determining a task, allocated task resources in a source task pool other than the least busy task pool, that accesses tracks in multiple groups of tracks assigned to multiple task pools;
• reassigning the determined task and the task resources allocated to the determined task to the least busy task pool in response to the least busy task pool satisfying the low latency criteria;
• and
• executing the determined task by a processor assigned to the least busy task pool in response to reassigning the determined task to the least busy task pool.

A computer program product for managing locks to tracks from storage cached in memory, comprising:

• one or more computer-readable storage media;
• and
• program instructions stored on the one or more computer-readable storage media to perform operations comprising:
• providing task pools of task resources assigned to groups of tracks and to processors, wherein task resources allocated to a task to access a requested track are assigned from a task pool assigned to a group of tracks including the requested track, wherein the task is processed by one of the processors assigned to the task pool;
• determining whether a least busy task pool having a lowest task resource allocation latency among the task pools satisfies a low latency criteria with respect to task resource allocation latencies of other task pools;
• determining a task, allocated task resources in a source task pool other than the least busy task pool, that accesses tracks in multiple groups of tracks assigned to multiple task pools;
• reassigning the determined task and the task resources allocated to the determined task to the least busy task pool in response to the least busy task pool satisfying the low latency criteria;
• and
• executing the determined task by a processor assigned to the least busy task pool in response to reassigning the determined task to the least busy task pool.