Struct Stats 

pub struct Stats {
    pub requests: u64,
    pub reads: u64,
    pub wanted: u64,
    pub read: u64,
}

What the pool has done, for the byte counting spec/engine/13-measurement.md section 13.5 asks for.

The distinction between Self::wanted and Self::read is the one that matters and it is the reason coalescing is counted rather than assumed harmless. A merged read that spans a gap reads bytes nobody asked for, and a reader whose pruning is wrong reads bytes it should have skipped. Both show up here as a ratio and neither shows up in the answer.

Fields

requests: u64

How many requests were submitted.

reads: u64

How many physical reads those requests turned into.

wanted: u64

How many bytes the requests asked for.

read: u64

How many bytes were actually read off the device.

Trait Implementations

impl Clone for Stats

fn clone(&self) -> Stats

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for Stats

impl Debug for Stats

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for Stats

fn default() -> Stats

Returns the “default value” for a type.

impl Eq for Stats

impl PartialEq for Stats

fn eq(&self, other: &Stats) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for Stats