NoPerf

NoPerf disables collection of performance timings inside the native layer. The savings are small but non-zero; useful in very high-throughput production loops.

Quick reference
Type bool?
Default null (timings collected)
Category Performance
Field on ContextParameters.NoPerf

What it does

  • null or false — timings collected. Minor overhead per call but you can inspect them via native logging.
  • true — timings disabled. Slightly faster; nothing to inspect.

This is a micro-optimization. The savings are usually below measurement noise on a single request. On a high-throughput server processing many requests per second, the savings add up.

When to change it

Scenario Value
Default (keeps timings for debugging) null
High-throughput production squeezing every last cycle true
Debugging performance null or false

Example

var preset = new Qwen25Preset();
preset.ContextParameters.NoPerf = true;           // production
preset.EngineParameters.EnableDebugLogging = false;

Interactions

What’s next

OpOffload