Memory Voltage Throttling for Stable Operation Under Power Drops
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Solution Overview
Problem
Conventional thermal throttling methods fail to prevent memory device failures due to mismatches between power systems and memory device capabilities, leading to operation failures at normal or elevated temperatures.
Innovation Solution
A performance throttling manager monitors input voltage levels to select appropriate performance levels for memory subsystems, reducing current consumption and preventing failures by adjusting performance based on voltage thresholds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If thermal throttling is used to manage memory performance, then temperature control is achieved, but memory device failures occur due to power system mismatches at normal temperatures
Solution Approach 1:
The patent changes the control parameter from temperature to input voltage level. The performance throttling manager monitors input voltage and dynamically adjusts memory subsystem performance levels based on voltage thresholds, rather than relying on temperature-based throttling that fails to prevent power system mismatches.
Solution Approach 2:
The system implements feedback by continuously monitoring input voltage levels and adjusting memory performance accordingly. The performance throttling manager uses voltage threshold comparisons to trigger performance level changes, creating a closed-loop control system that responds to real-time power conditions.
2Productivity
If memory subsystem operates at high performance level, then productivity is improved, but excessive current consumption causes voltage drops and operation failures
Solution Approach 1:
The patent makes the memory subsystem performance dynamic by introducing multiple performance levels that can be adjusted in real-time. The system transitions between performance levels based on monitored input voltage conditions, allowing optimal performance when voltage is stable and reduced performance when voltage drops occur.
Solution Approach 2:
The system takes preliminary anti-action by proactively reducing performance levels when voltage drops are detected, preventing operation failures before they occur. The performance throttling manager monitors voltage and triggers throttling in advance to avoid the harmful effects of excessive current consumption.
3Reliability
If performance throttling is implemented based on voltage monitoring, then reliability is improved, but device complexity increases
Solution Approach 1:
The performance throttling manager serves multiple functions: it monitors input voltage, compares voltage levels against thresholds, determines appropriate performance levels, and controls memory subsystem operation. This multi-functional approach consolidates what could be separate complex subsystems into a single management unit.
Data Source
AI summary
Exemplary methods, apparatuses, and systems include a performance throttling manager for controlling performance levels of a memory subsystem using input voltages. The performance throttling manager monitors input voltages to a memory device to determine a current input voltage value, while the memory device is operating at a first performance level. The performance throttling manager detects that the current input voltage value satisfies a threshold voltage value. The performance throttling manager selects a second performance level that is lower than the first performance level and throttles the performance of the memory device in response to detecting that the current input voltage value satisfies a threshold voltage value.