Invention Grant
- Patent Title: Memory sub-system for supporting deterministic and non-deterministic commands based on command expiration and the state of the intermediate command queue
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Application No.: US17223684Application Date: 2021-04-06
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Publication No.: US11567700B2Publication Date: 2023-01-31
- Inventor: Patrick A. La Fratta , Robert Walker
- Applicant: Micron Technology, Inc.
- Applicant Address: US ID Boise
- Assignee: Micron Technology, Inc.
- Current Assignee: Micron Technology, Inc.
- Current Assignee Address: US ID Boise
- Agency: Schwegman Lundberg & Woessner, P.A.
- Main IPC: G06F3/06
- IPC: G06F3/06

Abstract:
Commands in a command queue are received and scheduled. For each of the commands, scheduling includes determining an age of a command based on an entrance time of the command in the command queue. When the age of the command satisfies a first threshold, marking all other commands in the command queue as not issuable when the command is a deterministic command, and marking all other commands in the command queue as not issuable when the command is a non-deterministic command and the intermediate command queue is not empty. Scheduling the command further includes determining whether the command is a read command and marking the command as not issuable when the command is a non-deterministic read command and the intermediate command queue is empty.
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