Power Management Optimization

Optimize energy usage. Extend battery life. Reduce operational cost. Our experienced engineers help your team actively manage hardware resources to take advantage of the power efficiency of RISC. Meet your energy budgets, thermal constraints, and sustainability objectives.

Stop Needlessly Wasting Power

Power management problems rarely surface cleanly. They compound across the stack and throughout a product’s lifetime. Development teams face challenges such as:

Battery life that falls short of specs due to under-tuned idle and sleep states
Heat and thermal costs that increase time-to-market risk and long-term reliability issues
Performance mismatches, high power draw under light load, or latency penalties under heavy load
Inconsistent behavior across silicon revisions, firmware versions, and OS kernels
Missed sustainability targets and higher operational costs in the field

These issues are solvable — but only with deep expertise in power management across the full software stack. RISCstar has the experience and expertise to help you solve these issues, delivering measurable improvements to battery life, thermal performance, and long-term operating cost.

RISCstar's Approach to Power Management

RISCstar has deep expertise in power management for Linux and Zephyr, and can help with:

We profile your platform under representative workloads, measuring idle behavior, DVFS transitions, wake-source impact, and component-level consumption — then identify the highest-impact hotspots.

We tune DVFS governors for your workload profile and sleep patterns, including big.LITTLE cluster transitions, ensuring the right operating point is selected under real-world conditions.

We map and optimize idle states, align OS timers to reduce wake-ups, and ensure wake-source discipline to maximize time spent in deep sleep across the full system.

We configure device-tree and driver support for power domains, clocks, regulators, and memory retention — integrated with thermal management and runtime power constraints.

We enable CPU idle states, wake-up events, and sleep-entry using Zephyr’s low-power OS features.

We deploy instrumentation to validate energy savings and produce reports tied to your product KPIs. We align test harnesses with CI behavior and embed power-aware workflows into your long-term board bring-up and maintenance.

Why RISCstar? Proven Experience Across Platforms

Our engineers don’t just use the Linux kernel power subsystem — they contribute to it. That upstream depth means we can trace any power problem from hardware through firmware to OS with surgical precision. That translates directly to client results like:

Optimized battery life by 35% on a wearable device by realigning idle states and reducing wake-source noise
Delivered 18% power reduction on a server platform under idle and low-utilization conditions by tuning DVFS and C-states
Upstreamed power-related kernel improvements for a major SoC vendor, reducing long-term maintenance burden and accelerating mainline readiness
Ported Zephyr low-power modes to a custom SoC, enabling 10× longer sleep times in an IoT sensor network

RISCstar is the partner you want when power targets are on the line — because we’ve solved these problems before.

RISCstar, Your Partner For Success

If you have:

We have extensive experience resolving these scenarios and are here to help.

Power Management Optimization

Stop Needlessly Wasting Power

RISCstar's Approach to Power Management

Initial Audit & Baseline Profiling

DVFS & CPU Frequency Optimization

Idle State Tuning

System Power Domains & Thermal Integration

Zephyr Low-Power Enablement

Verification, Validation & Sustained Optimization

Why RISCstar? Proven Experience Across Platforms

RISCstar, Your Partner For Success