WIP: Make sketches generic between 16 & 32 bits #192
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What does this PR do?
Add a sparse store with 32-bit bins. We have observed that this offers a significant performance increase for distributions (tests in DataDog/datadog-agent#20565 and sibling PRs).
Make the
Agentbuffer use a sketch interface to allow us to put this behind a config flag.Pairs with: DataDog/datadog-agent#20695
Ref https://datadoghq.atlassian.net/browse/SMPTNG-72
Motivation