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Reduce granularity of histogram buckets for Go 1.17 collector #974

Merged
merged 1 commit into from Jan 28, 2022
Merged

Reduce granularity of histogram buckets for Go 1.17 collector #974

merged 1 commit into from Jan 28, 2022

Commits on Jan 28, 2022

  1. Reduce granularity of histogram buckets for Go 1.17 collector 

    The Go runtime/metrics package currently exports extremely granular
histograms. Exponentially bucket any histogram with unit "seconds"
or "bytes" instead to dramatically reduce the number of buckets, and
thus the number of metrics.

This change also adds a test to check for expected cardinality to
prevent cardinality surprises in the future.

Signed-off-by: Michael Anthony Knyszek <mknyszek@google.com>
    @mknyszek
    mknyszek committed Jan 28, 2022
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