Abstract: Systems for managing shared computing resources. In a multi-process computing environment a concurrency object data structure pertaining to a shared resource is made available to be accessed by two or more processing entities. The concurrency object comprises a consecutive read count that tracks the number of consecutive read requests that have been received for shared read access to the shared resource. A shared concurrency access state is entered based on comparison of the consecutive read count to a threshold value. Entering the shared concurrency access state begins a period during which grant of further shared access requests do not require semaphore operations or other atomic operations that pertains to the shared resource.

Abstract: A method for memory quarantine comprises: in response to a memory error, determining an extent associated with the memory error, wherein the extent defines an amount of memory comprising a plurality of chunks; traversing, forward from a beginning chunk of the plurality chunks, the plurality of chunks until a first chunk is determined to be corrupt; traversing, in reverse from a last chunk of the plurality of chunks, the plurality of chunks until a second chunk is determine to be corrupt; flagging a subset of the plurality of chunks as quarantined, wherein the subset begins with the first chunk and ends with the second chunk, and wherein quarantine prevents the subset from being reallocated after being released.

Abstract: A method for memory quarantine comprises: in response to a memory error, determining an extent associated with the memory error, wherein the extent defines an amount of memory comprising a plurality of chunks; traversing, forward from a beginning chunk of the plurality chunks, the plurality of chunks until a first chunk is determined to be corrupt; traversing, in reverse from a last chunk of the plurality of chunks, the plurality of chunks until a second chunk is determine to be corrupt; flagging a subset of the plurality of chunks as quarantined, wherein the subset begins with the first chunk and ends with the second chunk, and wherein quarantine prevents the subset from being reallocated after being released.

Abstract: Systems for managing shared computing resources. In a multi-process computing environment a concurrency object data structure pertaining to a shared resource is made available to be accessed by two or more processing entities. The concurrency object comprises a consecutive read count that tracks the number of consecutive read requests that have been received for shared read access to the shared resource. A shared concurrency access state is entered based on comparison of the consecutive read count to a threshold value. Entering the shared concurrency access state begins a period during which grant of further shared access requests do not require semaphore operations or other atomic operations that pertains to the shared resource.