Thread scheduling for multithreaded data processing environments

A method comprising:

• determining that a first buffer is unavailable for a first thread by checking a memory;
• storing a first stall state for the first thread in the memory in response to determining that the first buffer is unavailable;
• determining that a second buffer for a second thread is available in response to determining that the first buffer is unavailable;
• and
• initiating execution of the second thread in response to determining that the second buffer is available.

A system comprising:

• a first buffer;
• a memory configured to store:
• a first state for the first buffer;
• a list of threads that are stalled;
• and
• a data structure indicating previously stalled threads that have become unstalled due to a respective buffer being released;
• and
• a thread scheduler circuit coupled to the memory and to the first buffer, wherein the thread scheduler circuit is configurable to:
• determine that the first buffer is unavailable for a first thread by checking the first state in the memory;
• store a thread identifier for the first thread to the list of threads that are stalled in response to determining that the first buffer is unavailable;
• determine that the first buffer has become available after storing the thread identifier for the first thread to the list of threads that are stalled;
• and
• write the thread identifier for the first thread to the data structure.