improve substitution formatter parsing performance #35498
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Request (pr/35498/main@a5a1e6c)
a5a1e6c 
#35498 merge main@5f26450
improve substitution formatter parsing performance
Commit Message: improve substitution formatter parsing performance
Additional Description:See #35466
Previous parsing performance result:
--------------------------------------------------------------------------- Benchmark Time CPU Iterations --------------------------------------------------------------------------- BM_AccessLogFormatterSetup 75744 ns 75605 ns 9401Latest parsing performance result:
--------------------------------------------------------------------------- Benchmark Time CPU Iterations --------------------------------------------------------------------------- BM_AccessLogFormatterSetup 8932 ns 8917 ns 78153Risk Level: mid. Core code change.
Testing: unit.
Docs Changes: n/a.
Release Notes: no behavior change.
Platform Specific Features: n/a.
Environment
Request variables
| Key | Value |
|---|---|
| ref | 69b396b |
| sha | a5a1e6c |
| pr | 35498 |
| base-sha | 5f26450 |
| actor | @wbpcode |
| message | improve substitution formatter parsing performance... |
| started | 1722609632.333547 |
| target-branch | main |
| trusted | false |
Build image
Container image/s (as used in this CI run)
| Key | Value |
|---|---|
| default | envoyproxy/envoy-build-ubuntu:f94a38f62220a2b017878b790b6ea98a0f6c5f9c |
| mobile | envoyproxy/envoy-build-ubuntu:mobile-f94a38f62220a2b017878b790b6ea98a0f6c5f9c |
Version
Envoy version (as used in this CI run)
| Key | Value |
|---|---|
| major | 1 |
| minor | 32 |
| patch | 0 |
| dev | true |
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