SSD Bootloader Transfer From Volatile Memory for Faster Startup
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Solution Overview
Problem
Loading executable instructions from non-volatile memory introduces latency, increasing the boot time of computing systems, particularly in vehicles where quick startup is essential.
Innovation Solution
Loading executable instructions, such as bootloaders and an operating system, from non-volatile memory into volatile memory at startup, reducing latency by transferring them to volatile memory devices like DRAM upon power-up.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If executable instructions are loaded from non-volatile memory, then data persistence is maintained, but boot time increases due to latency
Solution Approach 1:
The system performs preliminary action by loading executable instructions from non-volatile memory into volatile memory during the boot process. This preliminary transfer prepares the instructions in advance in the faster volatile memory, so when the host needs to execute them, the instructions are already available in the optimal location, thereby reducing boot time while maintaining data persistence through the non-volatile memory storage.
2Duration of action of stationary object
If instructions are stored in non-volatile memory, then data retention without power is achieved, but access speed decreases
Solution Approach 1:
The system uses volatile memory as an intermediary between non-volatile memory and the host processor. Non-volatile memory provides durable storage with power loss protection, while volatile memory provides fast access speed. The intermediary volatile memory layer receives instructions from non-volatile memory during boot and serves them to the host, allowing the system to leverage both the persistence of non-volatile memory and the speed of volatile memory.
3Speed
If volatile memory is used for instruction storage, then access speed improves, but data persistence is lost
Solution Approach 1:
The system segments the memory function into two distinct components: non-volatile memory for persistent storage of executable instructions and volatile memory for fast access during operation. This segmentation allows each memory type to perform its strength - non-volatile memory ensures data persistence while volatile memory provides high-speed access - and the controller coordinates transfers between them as needed.
Data Source
AI summary
The present disclosure includes apparatuses, methods, and systems for receiving executable instructions from volatile memory. In an example, a method can include storing executable instructions comprising a bootloader at a pre-defined memory address range in a non-volatile memory device of a solid state drive (SSD), copying the executable instructions from the pre-defined memory address range to a volatile memory device of the SSD in response to powering on the SSD, and transmitting the executable instructions from the volatile memory device to a host.