Efficient progression management in a tracker with multiple sources

An apparatus, comprising:

• processing circuitry;
• a memory device to maintain a first tracker for all requests and a second tracker for a privileged group of requests, wherein a tracker is a buffer capable of tracking in-progress requests accepted by the tracker;
• a privilege logic block to select a first group from a set of groups as the privileged group;
• a communication logic block to receive a request from a requesting device;
• an acceptance logic block to:
• determine that a request from a remote apparatus cannot be accepted into the first tracker;
• determine whether the request belongs to the first group based on a header field of the request;
• and
• in response to the request belonging to the first group, select the request for accepting into the second tracker and performing a set of operations indicated in the request;
• and
• wherein the privilege logic block is further to:
• determine that a respective request belonging to the first group has been accepted;
• and
• select a second group from the set of groups as the privileged group.

A computer system, comprising:

• a processor;
• a storage device;
• a non-transitory computer-readable storage medium storing instructions, which when executed by the processor causes the processor to perform a method, the method comprising:
• maintaining, in the storage device, a first tracker for all requests and a second tracker for a privileged group of requests, wherein a tracker is a buffer capable of tracking in-progress requests accepted by the tracker;
• selecting a first group from a set of groups as the privileged group;
• receiving a request from a requesting device;
• determining that a request from a requesting device cannot be accepted into the first tracker;
• determining whether the request belongs to the first group based on a header field of the request;
• in response to the request belonging to the first group, selecting the request for accepting into the second tracker and performing a set of operations indicated in the request;
• determining that a respective request belonging to the first group has been accepted;
• and
• selecting a second group from the set of groups as the privileged group.