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docs: list the sparse (packed) histogram in the README's supported features - #172
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fcostaoliveira merged 1 commit intoOct 2, 2026
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…atures hdr_packed_histogram has been in the library since HdrHistogram#150 but the feature list did not mention it. Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
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What
Adds the sparse (packed) histogram to the README's list of supported features. It is a four-line bullet; nothing else changes.
Why
hdr_packed_histogramhas been in the library since #150 and ships in 0.12.0, but the README's feature list stopped at the dense histogram, the iterators, the log format and the interval recorder, so a reader of the README would not know it exists.The wording only repeats what
include/hdr/hdr_packed_histogram.hpromises: a separate type whose storage grows with the number of populated buckets, counts kept in 1, 2, 4 or 8 bytes, slower recording than the dense histogram, no atomic recording, and the standard compressed serialisation.Docs only.
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