[charliermarsh]

We align HTTP cache policies within the payload buffer and access them directly after validation, removing a separate allocation and copy from every cache read. Extracting the payload reuses the same allocation.

The file adds up to 15 bytes of padding, covered by the CRC32. Policy validation is restricted to its own slice, and refreshes retain the entry ID check before overwriting the policy.

[codspeed]

Merging this PR will not alter performance

✅ 72 untouched benchmarks
⏩ 28 skipped benchmarks¹

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_{Comparing charlie/align-http-cache-policy (6d2c0b6) with charlie/compact-http-cache-policy (115b8f0)²}

Footnotes

1. 28 benchmarks were skipped, so the baseline results were used instead. If they were deleted from the codebase, click here and archive them to remove them from the performance reports. ↩

2. No successful run was found on charlie/compact-http-cache-policy (a2e0171) during the generation of this report, so f5e1072 was used instead as the comparison base. There might be some changes unrelated to this pull request in this report. ↩

[zanieb]

internal not performance?