Revised December 2025 • Powered by Runnr Cloud Hosting

Complete Elimination of
Serverless Cold Starts

DynamicSpace introduces a third serverless paradigm by dynamically injecting functions into pre-running Linux containers using Elastic Volumes.

Download PDF

The Serverless Performance Bottleneck

MicroVM-Based Platforms

AWS Lambda

  • Cold starts from 200ms to 10s+
  • Strong isolation via Firecracker
  • High initialization overhead

Isolate-Based Platforms

Cloudflare Workers

  • Near-zero startup latency
  • JavaScript and WASM only
  • No native binaries

DynamicSpace

Elastic Generic Containers

  • 50ms to 100ms injection latency
  • Full Linux and POSIX compatibility
  • Near-zero idle overhead

Dynamic Function Injection

Instead of provisioning containers on demand, DynamicSpace maintains a pool of pre-running containers with initialized kernels and runtimes.

Functions are injected at runtime using Elastic Volumes and OverlayFS, bypassing container startup and reducing library loading latency.

This approach yields a 4x to 10x improvement over traditional serverless cold starts.

Execution Pipeline
Kernel Boot: Eliminated
Runtime Init: Eliminated
Code Injection: ~50ms
Execution: Immediate

Comparative Overview

Feature AWS Lambda Workers DynamicSpace
Cold Start 200ms – 10s+ <5ms 50ms – 100ms
Runtime Linux VM JS / WASM Full Linux