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Our service was slow, and the database was bored

A service I measured stopped at about 18,000 requests per second. Adding more concurrent clients didn't move it: 64 clients, 1,000 clients, 4,000 clients, all 18,000.

  • Service struggled with high request volume of 18,000 per second
  • Database was mostly idle, not the bottleneck
  • Batching requests improved performance to 252,000 requests per second

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