Fixstars is a performance engineering company specializing in AI/LLM inference and training acceleration, GPU utilization optimization, and software performance tuning. With over 20 years of expertise, we have supported more than 100 clients and achieved a 99%+ repeat engagement rate.
What is Performance Engineering?
Performance Engineering is a discipline focused on continuously improving and ensuring system performance to align with specific business objectives. Optimization requirements vary depending on the system, but common goals include:
Processing Performance
Enhancing data processing bandwidth and increasing throughput.
Responsiveness
Shortening user response times and reducing latency.
Efficiency
Improving power efficiency and maximizing "performance per watt."
Economic Viability
Improving cost-effectiveness and reducing Total Cost of Ownership (TCO).
From embedded devices to supercomputers, performance engineering is a core technology that significantly influences the competitiveness of products and services across all scales of systems.
Embedded Devices
- Extending battery life;
- operating with minimal memory and power consumption.
PC
- Achieving a smooth, responsive user experience;
- reducing wait times.
Cloud Computing
- Reducing operational costs;
- optimizing resource utilization.
Supercomputers
- Reaching peak performance;
- maximizing power efficiency.
Why Performance Engineering Now?
While performance improvement is not a new concept, the emergence of Generative AI has made the strategic practice of "Performance Engineering" more critical than ever.
Four key drivers are accelerating the demand for "faster, cheaper, and more efficient" systems to unprecedented levels:
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Reduced Time-to-Market
AI model development is time-intensive. Optimizing training to achieve the same accuracy with fewer computations allows for more iterations and faster product cycles, enabling companies to launch new models and services ahead of the competition.
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Optimized Operational Costs
Training and inference for large-scale AI models require massive computational resources, leading to significant expenses. Optimization is essential for directly reducing these costs and improving business profitability and sustainability.
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User Experience and Real-Time Requirements
For applications like AI assistants or autonomous driving systems where real-time response is critical, even minor latency can severely impact user experience and safety.
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Environmental Considerations
The rising energy consumption associated with AI workloads is a growing environmental concern. Improving power efficiency is increasingly viewed as a vital part of corporate social responsibility (CSR).
Performance Engineering in Generative AI
When looking at Generative AI through the lens of "Scale × Use Case," there are four typical patterns. Each requires focusing on different performance metrics, such as memory efficiency, high throughput, or low latency.
Small Scale × Inference
Mobile AI Assistants, IoT Sensor Processing, Autonomous Driving Systems.
Large Scale × Inference
Inference API Services, Generative AI Services, AI Agent Services.
Small Scale × Training
On-Device Fine-Tuning, Federated Learning.
Large Scale × Training
Fine-Tuning, Continued Pre-Training, Foundation Model Pre-Training.
Principles of Success: The "Observe & Improve" Cycle
Performance engineering is an iterative process of observing and improving. First, measure precisely; then, optimize effectively. This continuous loop is what drives performance higher.
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Select the Right Environment
Choose a measurement environment that is identical or as close as possible to the production environment. -
Control Side Effects
Minimize the overhead of measurement tools and code, or account for that overhead when analyzing results. -
Handle Variance Correctly
Identify the cause of any measurement noise. If it can be ignored as an error, use appropriate statistical values (like median or average).
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Set Target Goals
You cannot exceed theoretical performance, and the effort required increases exponentially as you approach it. -
Address the Critical Bottleneck
Focus optimization resources where they matter most. Improving non-dominant processes yields minimal overall gains. -
Re-evaluate the Need for Processing
Sometimes, eliminating a process entirely is more effective than making it faster.
Fixstars' Performance Engineering Offerings
Implementing performance engineering requires specialized knowledge, tools, and talent.
Based on over 20 years of experience, Fixstars offers three approaches tailored to your challenges:
Fixstars AIBooster
Simply install this on your GPU servers to continuously monitor AI/LLM workloads. It automatically detects bottlenecks, improves processing speed through optimization, and reduces GPU costs.
- Burdened by rising AI processing and infrastructure costs
- Aiming to increase AI development efficiency
- Seeking better ROI from existing GPU infrastructure
Fixstars AIStation
An all-in-one environment featuring high-performance GPU workstations pre-installed with the latest LLMs and applications. It allows for secure, local LLM operations immediately upon delivery.
- Restricted from using external services due to security policies
- Developing AI models with sensitive, proprietary data
- Requiring on-site, unlimited access to the latest GPUs
Software Acceleration Services
Our expert engineers, equipped with deep hardware knowledge, analyze your existing code. We perform everything from algorithm refinement to hardware-specific optimization to unlock potential of your computing resources.
- Struggling with performance that falls short of business needs
- Seeking fundamental algorithmic overhauls
- Looking for a hands-on development partner
Frequently Asked Questions
Fixstars has engineers with deep expertise across a wide range of processor architectures, including CPUs, GPUs, and FPGAs, who handle everything from code analysis and bottleneck identification to algorithm optimization. Unlike cloud providers, whose support typically focuses on infrastructure configuration, or system integrators, whose scope often stops at application-level development, Fixstars specializes in optimizing software at the deepest levels to maximize hardware performance. With over 20 years of focus on software acceleration, we have supported more than 100 clients and earned a 99%+ repeat engagement rate.
The first step is to accurately observe GPU activity and identify bottlenecks. In many cases, GPU compute units are underutilized due to inefficiencies in data transfer and memory access patterns. Fixstars AIBooster can be installed on your GPU servers to continuously collect performance data from AI/LLM workloads and automatically detect processing bottlenecks. By optimizing based on this data, you can improve GPU utilization and reduce infrastructure costs.
Accelerating training requires a multi-layered approach, including computation optimization, data pipeline efficiency, and distributed training communication optimization. Fixstars combines techniques such as kernel-level optimization tailored to hardware characteristics, memory usage pattern improvements, and appropriate numerical precision selection to reduce training time while maintaining model accuracy. This accelerates development iteration cycles, enabling faster time-to-market and lower GPU costs.
Reducing inference latency is most effective when combining model compression techniques (quantization, distillation, pruning) with runtime optimization. At Fixstars, we consider both the model architecture characteristics and the target deployment hardware (GPU, CPU, edge devices, etc.) to minimize latency while preserving accuracy. We help deliver responsive performance for generative AI services and real-time applications where even small delays impact user experience.
The return on investment for performance engineering is typically very high — in most cases, infrastructure cost savings significantly exceed the investment. For example, improving GPU utilization allows the same workloads to run on fewer resources, while inference optimization can reduce the number of servers required, resulting in substantial monthly cloud cost reductions. Since specific improvements vary by workload and environment, please contact us to discuss your situation.
Fixstars has performance engineering experience across a wide range of industries, including automotive (autonomous driving AI), life sciences (medical imaging AI), finance (risk calculation, high-frequency trading), manufacturing (inspection, simulation), and logistics (blending optimization). The common thread is that these are domains where computational performance directly impacts competitiveness. From AI/deep learning acceleration to quantum computing, we help clients maximize their computing potential to drive business results.