forked from mirror/client_golang
examples: Adjust doc comment for native histograms
Signed-off-by: beorn7 <beorn@grafana.com>
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@ -53,10 +53,17 @@ func main() {
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},
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[]string{"service"},
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)
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// The same as above, but now as a histogram, and only for the normal
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// distribution. The buckets are targeted to the parameters of the
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// normal distribution, with 20 buckets centered on the mean, each
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// half-sigma wide.
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// The same as above, but now as a histogram, and only for the
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// normal distribution. The histogram features both conventional
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// buckets as well as sparse buckets, the latter needed for the
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// experimental native histograms (ingested by a Prometheus
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// server v2.40 with the corresponding feature flag
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// enabled). The conventional buckets are targeted to the
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// parameters of the normal distribution, with 20 buckets
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// centered on the mean, each half-sigma wide. The sparse
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// buckets are always centered on zero, with a growth factor of
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// one bucket to the text of (at most) 1.1. (The precise factor
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// is 2^2^-3 = 1.0905077...)
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rpcDurationsHistogram = prometheus.NewHistogram(prometheus.HistogramOpts{
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Name: "rpc_durations_histogram_seconds",
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Help: "RPC latency distributions.",
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