Struct IndexMetrics 

pub struct IndexMetrics {
    pub resident_blocks: u64,
    pub resident_bytes: u64,
    pub puts: u64,
    pub removes: u64,
    pub prefix_scans: u64,
    pub bytes_written: u64,
}

Comparable metrics every index backend can report.

Fields that do not apply to a backend (for example bytes_written for a pure in-memory map) are reported as zero. These are the numbers Experiment mode compares across backends: in-memory vs Holt (persistent ART) vs RocksDB (LSM baseline) vs filesystem.

Fields

resident_blocks: u64

resident_bytes: u64

puts: u64

removes: u64

prefix_scans: u64

bytes_written: u64

Bytes physically written to the backing store, for write-amplification studies. In-memory backends report 0.

Trait Implementations

impl Clone for IndexMetrics

fn clone(&self) -> IndexMetrics

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for IndexMetrics

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

Formats the value using the given formatter.

impl Default for IndexMetrics

fn default() -> IndexMetrics

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for IndexMetrics

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for IndexMetrics

impl PartialEq for IndexMetrics

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for IndexMetrics

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for IndexMetrics