1M daily active users each make 10 requests per day. Average QPS?

Options

1. ~12
2. ~116 (Correct option)
3. ~1,160
4. ~11,600

Answer

~116

Why

Total requests per day: 1,000,000 × 10 = 10,000,000.

A day has 86,400 seconds (round to 100,000 for quick math).

10,000,000 / 86,400 ≈ 116 queries per second on average.

Traffic is not flat: assume peaks of 2 to 10 times the average when sizing the system.

Remember

QPS ≈ requests per day / 100,000.

Key terms

• QPS
• Latency
• Throughput
• Horizontal scaling
• Load balancer