Voltage Scheduling in the lpARM Microprocessor System

نویسندگان

  • Trevor Pering
  • Thomas Burd
  • Robert Brodersen
چکیده

Microprocessors represent a significant portion of the energy consumed in portable electronic devices. Dynamic Voltage Scaling (DVS) allows a device to reduce energy consumption by lowering its processor speed at run-time, allowing a corresponding reduction in processor voltage and energy. A voltage scheduler determines the appropriate operating voltage by analyzing application constraints and requirements. A complete software implementation, including both applications and the underlying operating system, shows that DVS is effective at reducing the energy consumed without requiring extensive software modification.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Energy Efficient Voltage Scheduling for Real-Time Operating Systems

This paper applies the concept of real-time process scheduling to a Dynamic Voltage Scaling (DVS) microprocessor. DVS allows a microprocessor to save energy by operating at the optimal voltage for the task at hand. Efficient operation requires a new class of algorithms which we term voltage schedulers. The necessary foundation for these algorithms is presented along with the foreseen implementa...

متن کامل

A Microprocessor-Based Hybrid Duplex Fault-Tolerant System

Reliability is one of the fundamental considerations in the design of industrial control equipment. The microprocessor-based Hybrid Duplex fault-tolerant System (HDS) proposed in this paper has high reliability to meet this demand although its hardware structure is simple. The hardware configuration of HDS and the fault tolerance of this system are described. The switching control strategies in...

متن کامل

A Fast and Efficient On-Line Harmonics Elimination Pulse Width Modulation for Voltage Source Inverter Using Polynomials Curve Fittings

The paper proposes an algorithm to calculate the switching angles using harmonic elimination PWM (HEPWM) scheme for voltage source inverter. The algorithm is based on curve fittings of a certain polynomials functions. The resulting equations require only the addition and multiplication processes; therefore, it can be implemented efficiently on a microprocessor. An extensive angle error analysis...

متن کامل

A Rate Matching-based Approach to Dynamic Voltage Scaling

We present a simple rate matching-based mechanism for voltage adaptation in a microprocessor running a multiprogrammed workload. The mechanism incorporates a set of architecture and operating system extensions through which applications can communicate their actual and desired progress to the operating system. Using this feedback, the operating system uses a modified scheduling algorithm to run...

متن کامل

Dynamic Voltage and Frequency Scheduling for Embedded Processors Considering Power and Timing Constraints

An adaptive method to perform dynamic voltage and frequency scheduling (DVFS) for minimizing the energy consumption of microprocessor chips is presented. Instead of using a fixed update interval, the proposed DVFS system makes use of adaptive update intervals for optimal frequency and voltage scheduling. The optimization enables the system to rapidly track the workload changes so as to meet sof...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2000