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span-format

benchmark/sirun/span-format/README.md

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span-format

Measures span_format.format(), the per-span step that runs before the msgpack encoder: the per-tag switch that splits the tag bag into meta/metrics, key/value truncation, error-field extraction, and root/chunk tag stamping. Variants cover a flat web span, a wide tag bag, an errored span, and a typical HTTP-server span.