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soundwave/docs/BUILD_OPTIMIZATION.md
Iulian 51679d1943 Initial commit - SoundWave v1.0 
- Full PWA support with offline capabilities
- Comprehensive search across songs, playlists, and channels
- Offline playlist manager with download tracking
- Pre-built frontend for zero-build deployment
- Docker-based deployment with docker compose
- Material-UI dark theme interface
- YouTube audio download and management
- Multi-user authentication support
2025-12-16 23:43:07 +00:00

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Docker Build Optimization Results

Improvements Made

1. Multi-Stage Build

  • Before: Single-stage with build-essential in final image
  • After: Separate builder stage for compilation
  • Benefit:
    • Removed build-essential (80MB+) from final image
    • Cleaner separation of build vs runtime dependencies

2. Optimized APT Install

  • Added --no-install-recommends flag
  • Prevents installing 200+ suggested packages with ffmpeg

Build Time Comparison

Version Time Notes
Original 6m 15s (375s) Single stage, all packages
Multi-stage 5m 40s (341s) 9% faster, smaller image
+ no-recommends Expected: ~3-4m Skips GUI/X11 packages

Bottleneck Analysis

Current slowest step: FFmpeg installation (326s / 96%)

  • Installs 287 packages including full X11/Mesa/Vulkan stack
  • Most are unnecessary for headless audio processing
  • --no-install-recommends should skip ~200 optional packages

Build Time Breakdown

Stage 1 (Builder): 37s
├── apt-get build-essential: ~10s
└── pip install: 27s

Stage 2 (Runtime): 327s  ← BOTTLENECK
├── apt-get ffmpeg: 326s (installing 287 pkgs!)
└── Other steps: 1s

Next Optimizations

  1. ✅ Multi-stage build
  2. ✅ Use --no-install-recommends
  3. Consider: Pre-built base image with ffmpeg
  4. Consider: BuildKit cache mounts for apt/pip
  5. Consider: Minimal ffmpeg build from source

Estimated Final Time

With --no-install-recommends: 3-4 minutes (50% improvement)