Non-uniform memory access latency adaptations to achieve bandwidth quality of service

A system comprising:

• a queue that is shared by a plurality of domains of a memory architecture, wherein at least two of the domains comprise different associated memory access latencies;
• a queue monitor to detect a first issued request in the queue;
• a system address decoder to determine a first destination domain associated with the first issued request, wherein the first destination domain is one of the plurality of domains;
• and
• a request arbitrator to prevent a first set of additional requests from being issued to the queue if the first issued request satisfies an overrepresentation condition with respect to the first destination domain and the first set of additional requests are associated with the first destination domain, wherein the request arbitrator is to assign an allocated number of requests to each domain of the plurality of domains, and identify that the first issued request satisfies the overrepresentation condition in response to a determination that the first issued request has caused a total number of issued requests associated with the first destination domain to reach the allocated number of requests for the first destination domain.

An apparatus comprising:

• a queue monitor to detect a first issued request in a queue that is shared by a plurality of domains of a memory architecture, wherein at least two of the domains comprise different associated memory access latencies;
• a system address decoder to determine a first destination domain associated with the first issued request, wherein the first destination domain is one of the plurality of domains;
• and
• a request arbitrator to prevent a first set of additional requests from being issued to the queue if the first issued request satisfies an overrepresentation condition with respect to the first destination domain and the first set of additional requests are associated with the first destination domain, wherein the request arbitrator is to assign an allocated number of requests to each domain of the plurality of domains, and identify that the first issued request satisfies the overrepresentation condition in response to a determination that the first issued request has caused a total number of issued requests associated with the first destination domain to reach the allocated number of requests for the first destination domain.

A method comprising:

• detecting a first issued request in a queue that is shared by a plurality of domains of a memory architecture, wherein at least two of the domains comprise different associated memory access latencies;
• determining a first destination domain associated with the first issued request, wherein the first destination domain is one of the plurality of domains;
• assigning an allocated number of requests to each domain of the plurality of domains;
• identifying an overrepresentation condition in response to a determination that the first issued request has caused a total number of issued requests associated with the first destination domain to reach the allocated number of requests for the first destination domain;
• and
• preventing a first set of additional requests from being issued to the queue when the first issued request satisfies the overrepresentation condition with respect to the first destination domain and the first set of additional requests are associated with the first destination domain.

At least one non-transitory computer readable storage medium comprising a set of instructions, which when executed by a computing device, cause a computing device to:

• detect a first issued request in a queue that is shared by a plurality of domains of a memory architecture, wherein at least two of the domains comprise different associated memory access latencies;
• determine a first destination domain associated with the first issued request, wherein the first destination domain is one of the plurality of domains;
• assign an allocated number of requests to each domain of the plurality of domains;
• identify an overrepresentation condition in response to a determination that the first issued request has caused a total number of issued requests associated with the first destination domain to reach the allocated number of requests for the first destination domain;
• and
• prevent a first set of additional requests from being issued to the queue when the first issued request satisfies the overrepresentation condition with respect to the first destination domain and the first set of additional requests are associated with the first destination domain.