Software Power tuning

Portable electronic devices including a smart phone have been the subjects that the increase in the power consumption accompanying improvement in the clock frequency of CPU supporting the advanced features is big.

It is an activity of hardware that serves as a source of the power consumption of a system, and many are based on the demand from software.Therefore, it is worth before you replace the hardware, reducing power consumption by tuning the software.

A source of power consumption has something like the following.

• Access to the cache memory
• Access to the system bus and external memory
• Pipeline stalls and speculative execution of operations
• Number of steps of the program
• Unnecessary power consumption during idle component

TOPS Systems evaluates the power consumption of software quantitatively, and provides the service which optimizes software towards low-power-consumption.

A problem is specified by sampling measurement of current and voltage using the actual equipment as characterization of a low level.In addition, as the high-level profiling, we analyzed the frequency of execution for different types of instruction each sequence, and then evaluated to model the power consumption CPU, bus, cache, external memory, LCD, and other peripheral devices.

Then selection of a low electric power command, the frequency of memory access and reduction of cost, practical use of the low-power-consumption-ized mechanism which various hardwares offer, selection of the algorithm in which low consumption electrification is possible, etc. perform the power consumption tuning by software.

We provide the service which tunes up the power consumption of software based on detailed analysis of the operation of CPU which operates the software made into an object from the development experience of the development experience and power consumption profiling of a highly efficient library or a compiler, or a power consumption model.

For more information, please contact our sales office for up to(sales@topscom.co.jp)