Buffering

performanceintermediate
streamingvideo playbackdata loading

The process of preloading data into a reserved area of memory (a buffer) to prevent interruptions during streaming or downloading.

Examples

YouTube video

The gray bar showing how much video is preloaded ahead of current playback

Music streaming

Spotify buffers next songs while current one plays

Common Misconceptions

  • Buffering is caused by slow internet, not the buffering process itself
  • Some buffering is normal and prevents interruptions

Optimization Tips

Lower video quality if buffering frequently

high impact

Close other bandwidth-consuming apps

medium impact

Pause video to let it buffer ahead

medium impact

Use wired connection for stable streaming

high impact

User Impact

Video streaming

Frequent buffering interrupts viewing experience

Live streams

Buffering causes you to fall behind real-time

Gaming

Different from lag - games don't buffer, they lag or disconnect

Troubleshooting

Issue: Constant buffering

Solution: Check internet speed, reduce stream quality

Issue: Buffering at specific times

Solution: Network congestion - avoid peak hours or upgrade plan