Struct PerformanceMetrics 

pub struct PerformanceMetrics {
    pub parse_time_us: u64,
    pub planning_time_us: u64,
    pub execution_time_us: u64,
    pub total_time_us: u64,
    pub memory_usage_bytes: u64,
    pub io_operations: u64,
    pub cache_hits: u64,
    pub cache_misses: u64,
}

Performance metrics for query execution

Fields

parse_time_us: u64

Parse time in microseconds

planning_time_us: u64

Planning time in microseconds

execution_time_us: u64

Execution time in microseconds

total_time_us: u64

Total time in microseconds

memory_usage_bytes: u64

Memory usage in bytes

io_operations: u64

I/O operations performed

cache_hits: u64

Cache hits

cache_misses: u64

Cache misses

Implementations

impl PerformanceMetrics

pub fn new() -> Self

Create new performance metrics

pub fn total_time_ms(&self) -> u64

Get total time in milliseconds

pub fn cache_hit_ratio(&self) -> f64

Get cache hit ratio

pub fn to_json(&self) -> Value

Convert to JSON representation

Trait Implementations

impl Clone for PerformanceMetrics

fn clone(&self) -> PerformanceMetrics

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PerformanceMetrics

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

Formats the value using the given formatter.

impl Default for PerformanceMetrics

fn default() -> PerformanceMetrics

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for PerformanceMetrics

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for PerformanceMetrics

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

where __S: Serializer,

Serialize this value into the given Serde serializer.