Why does the capacity in the metric graph deviate from the value of capacity checked by the OS or other means?

When converting metric graph values to units, Mackerel calculates them by dividing by 1000(10^n), which is a power of 10.

Some OS or tools may use 1024(2^n), which is a power of 2, for unit conversion, so the size may differ when compared, but this is a specification.