[PR #4221] [client] Improve userspace filter logging performance #4146

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opened 2025-11-20 08:07:49 -05:00 by saavagebueno · 0 comments
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Original Pull Request: https://github.com/netbirdio/netbird/pull/4221

State: closed
Merged: Yes


Describe your changes

This improves logging performance when logs are off by eliminating the variadic function call.

Test Case Variadic LogN Improvement
2 Args - Disabled 72.75ns, 32B, 1 alloc 0.85ns, 0B, 0 allocs 86x faster
2 Args - Enabled 102.2ns, 35B, 1 alloc 23.45ns, 0B, 0 allocs 4.4x faster
6 Args - Disabled 112.5ns, 96B, 1 alloc 0.85ns, 0B, 0 allocs 132x faster
6 Args - Enabled 124.9ns, 97B, 1 alloc 38ns, 0B, 0 allocs 3.3x faster

Stack

Checklist

  • Is it a bug fix
  • Is a typo/documentation fix
  • Is a feature enhancement
  • It is a refactor
  • Created tests that fail without the change (if possible)
  • Extended the README / documentation, if necessary

By submitting this pull request, you confirm that you have read and agree to the terms of the Contributor License Agreement.

**Original Pull Request:** https://github.com/netbirdio/netbird/pull/4221 **State:** closed **Merged:** Yes --- ## Describe your changes This improves logging performance when logs are off by eliminating the variadic function call. | Test Case | Variadic | LogN | Improvement | |-------------------|-----------------------|-----------------------------|-------------| | 2 Args - Disabled | 72.75ns, 32B, 1 alloc | 0.85ns, 0B, 0 allocs | 86x faster | | 2 Args - Enabled | 102.2ns, 35B, 1 alloc | 23.45ns, 0B, 0 allocs | 4.4x faster | | 6 Args - Disabled | 112.5ns, 96B, 1 alloc | 0.85ns, 0B, 0 allocs | 132x faster | | 6 Args - Enabled | 124.9ns, 97B, 1 alloc | 38ns, 0B, 0 allocs | 3.3x faster | ## Issue ticket number and link ## Stack <!-- branch-stack --> ### Checklist - [ ] Is it a bug fix - [ ] Is a typo/documentation fix - [ ] Is a feature enhancement - [ ] It is a refactor - [ ] Created tests that fail without the change (if possible) - [ ] Extended the README / documentation, if necessary > By submitting this pull request, you confirm that you have read and agree to the terms of the [Contributor License Agreement](https://github.com/netbirdio/netbird/blob/main/CONTRIBUTOR_LICENSE_AGREEMENT.md).
saavagebueno added the pull-request label 2025-11-20 08:07:49 -05:00
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Reference: SVI/netbird#4146