BinaryHistogram

An integer, binary logarithmic statistics counter

struct BinaryHistogram (

uint MaxPow2

istring Suffix = ""

) {

import core.bitop : bsr;;

ulong add(ulong n);

double mean();

ulong countFor();

Bins stats();

}

Members

Functions

add ulong add(ulong n): Adds the specified value to the histogram, incrementing the corresponding bin and the total number of transactions and adding n to the total count.
countFor ulong countFor(): Gets the count of transactions in the specified bin.
mean double mean()
stats Bins stats()

Variables

count uint count;: The total number of calls to add().
total ulong total;: The aggregated total from all calls to add().

Parameters

MaxPow2: the maximum power of two that is tracked in the lower bins of the counter. Any values >= 2^MaxPow2 will be aggregated in the upper bin.
Suffix: suffix for the names of the fields of the Bins accessor struct

Meta

Source

See Implementation