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How to Optimize Servers for Video Workloads

Ryan Offman by Ryan Offman
May 26, 2025
in Technology
A A
How to Optimize Servers for Video Workloads

How to Optimize Servers for Video Workloads

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The surge in online video consumption has transformed how we design and optimize infrastructure. Whether you’re delivering live esports to millions, archiving old film reels in 4K, or running real-time AI-based video moderation, the backend must be tailored with precision. Generic server setups simply don’t cut it. Optimizing for video means optimizing for speed, scale, and efficiency—all at once.

So what does that really look like? It depends on the type of video workload you’re running. Live streaming platforms have different needs than encoding farms. AI-based video editing requires something else entirely. Let’s unpack each use case and explore how to architect infrastructure that holds up under pressure.

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1. Streaming servers (live & VOD)

When you’re streaming to thousands—or even millions—concurrency becomes the biggest hurdle. Your infrastructure must handle simultaneous connections while maintaining ultra-low latency and crisp resolution.

This is where purpose-built streaming servers come into play. They’re designed for high-throughput video delivery, both for live (e.g., Twitch-like platforms) and video-on-demand (VOD) use cases.

Key hardware considerations:

  • CPU: Modern Intel chips with Quick Sync or AMD VCE are ideal for real-time encoding, reducing strain on the CPU and delivering smoother streams.
  • GPU: For higher resolutions like 4K or 8K live streaming, NVIDIA Tesla T4 cards with NVENC support are a go-to. These cards excel at real-time encoding with minimal heat output.
  • Network: At least 10 Gbps uplinks are recommended, especially if you’re not relying on external CDNs. DDoS protection (Cloudflare Spectrum or similar) is critical to keep your stream online under pressure.

Software stack:

  • Protocols: Use SRT when dealing with lossy or unpredictable networks—it recovers dropped packets better than RTMP. For sub-second latency, WebRTC is your best bet.
  • Caching: Tools like NGINX paired with Redis can enable edge-side HLS/DASH chunk caching, reducing load times and bandwidth strain during peak traffic.

2. Transcoding/encoding servers

Not all videos come out in the right format. Transcoding is the behind-the-scenes workhorse—taking raw footage and adapting it for different platforms, resolutions, and bitrates.

Hardware highlights:

  • Bare metal: Dual AMD EPYC machines with 128 threads can churn through batch encoding jobs rapidly, particularly in datacenter environments.
  • Cloud-based: For flexibility and scale, AWS EC2 G5 instances with NVIDIA A10G GPUs are ideal, especially for AV1 encoding, which is becoming more popular due to its efficiency.

Software tricks:

  • FFmpeg flags: Use -hwaccel cuda -c:v h264_nvenc for GPU-accelerated encoding. It significantly cuts down encoding times without sacrificing quality.
  • Orchestration: Tools like Kubernetes combined with KubeRay let you spin up encoding jobs across clusters efficiently. This kind of distributed encoding is crucial for VOD giants like Netflix or Hulu.

3. Storage/origin servers

The backend storage often goes overlooked, but for video workloads, it’s critical. Every frame needs to be read and written quickly, especially when operating at scale.

Hardware essentials:

  • Storage: RAID 10 configurations using NVMe drives with high DWPD (drive writes per day) ratings are ideal for heavy workloads. Look for drives with DWPD >3 if encoding directly to disk.
  • Network: A minimum of 25 Gbps helps with replication across regions and keeps things snappy when serving large libraries.

Software architecture:

  • Filesystem: ZFS remains a favorite for video archiving due to built-in compression and snapshot capabilities.
  • Tiering strategies: Combine hot storage (NVMe) with cold options like AWS S3 or Glacier. Automated lifecycle policies reduce costs without risking data availability.

4. AI/ML video processing servers

As more companies lean into automation, AI/ML is becoming a vital piece of the video pipeline—used for everything from object recognition to content moderation and automated highlights.

Specialized hardware:

  • GPU: NVIDIA A100s with 80GB of VRAM are currently the gold standard. Their high memory bandwidth is key for processing large video frames at speed.
  • CPU: Fast single-threaded performance is still important for tasks like frame decoding, so high-clock-speed Xeon chips can complement the GPUs well.

AI-first software pipelines:

  • Frameworks: TensorRT-optimized models improve inference speed and reduce GPU load—ideal for real-time detection tasks.
  • Process flow: A clean pipeline of decode → process → encode, leveraging CUDA streams, allows for parallel processing without bottlenecks.

5. Edge servers (regional CDN nodes)

If you’re serving a global audience, centralized hosting won’t cut it. You need edge computing to bring content closer to users.

Edge-optimized hardware:

  • Microservers: Compact Intel Xeon D setups provide decent performance while being energy efficient—perfect for rack-dense CDNs.
  • ARM-based solutions: Ampere Altra processors are now gaining traction for edge use due to their excellent performance-per-watt ratio.

CDN-smart software:

  • Adaptive bitrate (ABR): Deliver different video qualities depending on each user’s bandwidth with tools like Shaka Packager.
  • Geo-redundancy: Anycast DNS routing with automatic failover ensures viewers are always served from the closest, healthiest node.

Key cross-cutting considerations

No matter the use case, there are universal concerns you should never overlook:

  • Security: Use hardware TPMs for secure DRM key storage. TLS 1.3 should be the default for ingest and distribution traffic.
  • Cost-efficiency: For non-live jobs like encoding or archival, spot instances can save significant costs. LTO tapes are still unbeatable for long-term cold storage.
  • Monitoring: Use per-title analytics from platforms like Bitmovin or Mux to fine-tune encoding profiles, track quality of experience, and eliminate buffering.

Video workloads push servers to their limits—often in unpredictable ways. From encoding speed to streaming latency and AI-based frame analysis, every element of your infrastructure needs fine-tuning. But with the right approach, your servers won’t just handle the load—they’ll deliver unforgettable viewing experiences.

Whether you’re building a live broadcasting empire, running a film restoration studio, or launching a hyper-local streaming service, optimizing each server for its role is non-negotiable. Start with understanding your needs, and build from there.

Ryan Offman

Ryan Offman

Technology Reporter

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