Struct ExecutionTiming 

pub struct ExecutionTiming {
    pub status_busy: Option<DateTime<Utc>>,
    pub execute_input: Option<DateTime<Utc>>,
    pub reply_started: Option<DateTime<Utc>>,
    pub reply: Option<DateTime<Utc>>,
    pub status_idle: Option<DateTime<Utc>>,
}

Execution timing metadata from notebook cells

JupyterLab 1.2+ can record timing information in cell metadata under the “execution” key. This captures timestamps at various stages of cell execution.

Fields

status_busy: Option<DateTime<Utc>>

When kernel became busy (started processing request)

execute_input: Option<DateTime<Utc>>

When execute_input message was sent

reply_started: Option<DateTime<Utc>>

When execution started (from shell.execute_reply metadata)

reply: Option<DateTime<Utc>>

When execution finished (shell.execute_reply received)

status_idle: Option<DateTime<Utc>>

When kernel became idle (all outputs published)

Implementations

impl ExecutionTiming

pub fn total_duration(&self) -> Option<Duration>

Calculate total duration (busy → idle)

This is the wall-clock time from when the kernel started processing the request until all outputs were published.

pub fn execution_duration(&self) -> Option<Duration>

Calculate pure execution duration (reply_started → reply)

This is the actual execution time, excluding output publishing overhead.

pub fn output_overhead(&self) -> Option<Duration>

Calculate output overhead (reply → idle)

This is the time spent publishing outputs after execution finished.

pub fn from_duration(start: DateTime<Utc>, end: DateTime<Utc>) -> Self

Create timing from start and end timestamps

This is a simplified version for when we only have start/end times (e.g., when capturing timing during execution without all intermediate events)

pub fn has_timing(&self) -> bool

Check if this timing has valid data

Trait Implementations

impl Clone for ExecutionTiming

fn clone(&self) -> ExecutionTiming

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ExecutionTiming

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

Formats the value using the given formatter.

impl Default for ExecutionTiming

fn default() -> ExecutionTiming

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for ExecutionTiming

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for ExecutionTiming

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

where __S: Serializer,

Serialize this value into the given Serde serializer.