Why has Prime Video content loading time increased to 15 seconds?

Introduction

The sudden increase in Prime Video content loading time to 15 seconds is a critical issue that demands immediate attention. This prolonged loading time significantly impacts user experience and could lead to decreased engagement and potential subscriber churn. I'll approach this problem systematically, focusing on identifying the root cause, validating hypotheses, and developing both short-term fixes and long-term solutions.

Step 1

Clarifying Questions (3 minutes)

• Looking at the timing, I'm thinking this might be a recent change. When exactly did we start noticing this increase in loading time?

Why it matters: Helps pinpoint potential causes related to recent changes or events. Expected answer: Within the last week or two. Impact on approach: If very recent, we'd focus on recent deployments or changes.

• Considering user segments, I'm wondering if this affects all users equally. Are we seeing this 15-second delay across all devices and regions?

Why it matters: Identifies if it's a global issue or specific to certain segments. Expected answer: Varies by device or region. Impact on approach: If segmented, we'd investigate specific platforms or CDN issues.

• Given the nature of streaming services, I'm curious about content types. Is this delay consistent across all types of content (movies, TV shows, live events)?

Why it matters: Could indicate issues with specific content delivery pipelines. Expected answer: Varies by content type. Impact on approach: If content-specific, we'd look into encoding or storage issues for those types.

• Thinking about system changes, have there been any recent updates to our content delivery network or video processing pipeline?

Why it matters: Could directly link to technical causes of the delay. Expected answer: Yes, recent CDN optimization or encoding changes. Impact on approach: Would focus on rolling back or optimizing recent changes.

• Considering measurement accuracy, has there been any change in how we measure or define content loading time?

Why it matters: Ensures we're not dealing with a measurement anomaly. Expected answer: No changes in measurement methodology. Impact on approach: If changed, we'd need to reassess our metrics before diving deeper.