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feat: expose ETW session buffer options - #14

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zdy wants to merge 3 commits into
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zdy:feat/session-buffer-options
Open

feat: expose ETW session buffer options#14
zdy wants to merge 3 commits into
bi-zone:masterfrom
zdy:feat/session-buffer-options

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@zdy

@zdy zdy commented May 19, 2026

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Summary

Expose ETW real-time session buffer options:

  • BufferSizeKB
  • MinBuffers
  • MaxBuffers
  • FlushTimerSec

These options are passed into EVENT_TRACE_PROPERTIES so downstream consumers can tune ETW buffering for high-throughput providers.

Why

The default ETW buffer settings can be insufficient for bursty providers. Consumers need to tune buffer size, buffer count, and flush interval to
reduce ETW buffer loss.

Testing

  • Verified downstream in LoongCollector DNS ETW collector.
  • 100k DNS query pressure test with:
    • BufferSizeKB=128
    • MinBuffers=8
    • MaxBuffers=64
    • FlushTimerSec=1
  • ETW Buffers Lost: 0

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