Struct ExecutionStats 

#[non_exhaustive]
pub struct ExecutionStats {

    pub total_duration_us: u64,
    pub strata: Vec<StratumStats>,
    pub peak_memory_bytes: u64,
    pub memory_budget_bytes: u64,
    pub total_output_rows: u64,
    pub wcoj_triangle_dispatch_count: u64,
    pub wcoj_4cycle_dispatch_count: u64,
    pub wcoj_groupby_fusion_dispatch_count: u64,
    pub free_join_dispatch_count: u64,
    pub factorized_delta_dispatch_count: u64,
    pub chain_fallback_scan_equivalents: u64,
    pub chain_fallback_filter_equivalents: u64,
    pub wcoj_error_decline_count: u64,
    pub resident_graph: Option<ResidentGraphExecutionStats>,
}

Final execution statistics returned to CLI

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

total_duration_us: u64

Total execution duration in microseconds

strata: Vec<StratumStats>

Per-stratum statistics

peak_memory_bytes: u64

Peak memory usage in bytes

memory_budget_bytes: u64

Memory budget in bytes

total_output_rows: u64

Total output rows across all queries

wcoj_triangle_dispatch_count: u64

WCOJ triangle-hook dispatches that installed a result (vs. silently falling back to the binary-join path). A value > 0 is the proof a run actually used the WCOJ triangle kernel.

wcoj_4cycle_dispatch_count: u64

WCOJ 4-cycle-hook dispatches that installed a result.

wcoj_groupby_fusion_dispatch_count: u64

Aggregate-fused group-by-root WCOJ dispatches (count without materializing the join rows).

free_join_dispatch_count: u64

Generalized Free Join dispatches installed via the multiway plan.

factorized_delta_dispatch_count: u64

Factorized recursive-delta dispatches installed in the semi-naive fixpoint.

chain_fallback_scan_equivalents: u64

Scan operations in embedded binary fallbacks that are logically equivalent to successful ChainJoin specializations. These operations did not execute and are therefore excluded from strata[*].ops.

chain_fallback_filter_equivalents: u64

Filter operations in embedded binary fallbacks that are logically equivalent to successful ChainJoin specializations. These operations did not execute and are therefore excluded from strata[*].ops.

wcoj_error_decline_count: u64

WCOJ pipeline errors converted into binary-join declines. 0 is healthy; a nonzero value signals a regressed WCOJ pipeline hiding behind the silent-fallback contract.

resident_graph: Option<ResidentGraphExecutionStats>

Selection, transfer, and device-timing evidence for an attempted resident conditional-graph execution.

Implementations

impl ExecutionStats

pub fn format_human(&self) -> String

Format stats as human-readable string

pub fn format_json(&self) -> String

Format stats as JSON string

Trait Implementations

impl Clone for ExecutionStats

fn clone(&self) -> ExecutionStats

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ExecutionStats

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

Formats the value using the given formatter.

impl Default for ExecutionStats

fn default() -> ExecutionStats

Returns the “default value” for a type.