ns::stats::Sampler method delta (protected)

 <instance of ns::stats::Sampler> delta now before

Defined in

A decreased cumulative counter has no usable interval delta.

Parameters:

now (required)

before (required)

Testcases:

No testcase defined.

Source code:

if {$now < $before} {
    return {}
}
expr {$now - $before}

XQL Not present:

Generic, PostgreSQL, Oracle