Struct StartupTimings 

#[non_exhaustive]
pub struct StartupTimings {
    pub program_resolve_ms: Option<u64>,
    pub process_spawn_ms: Option<u64>,
    pub port_wait_ms: Option<u64>,
    pub transport_setup_ms: u64,
    pub handshake_ms: u64,
    pub session_fs_ms: Option<u64>,
    pub llm_handler_ms: Option<u64>,
    pub total_ms: u64,
}

Millisecond breakdown of the phases of Client::start.

Optional fields represent phases that do not run for every configuration: program_resolve_ms is None when the caller supplies an explicit CLI path (no resolution/extraction), port_wait_ms is Some only for the TCP transport, and session_fs_ms / llm_handler_ms are Some only when the corresponding option is configured. process_spawn_ms is None for transports that do not spawn a subprocess (external server, in-process FFI runtime). transport_setup_ms, handshake_ms, and total_ms are always populated for a value returned by Client::startup_timings.

Durations are whole milliseconds, matching the existing elapsed_ms tracing fields.

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.

program_resolve_ms: Option<u64>

Time spent in resolve::copilot_binary_with_extract_dir locating (and, for a bundled CLI, extracting) the copilot binary. None when the caller passes an explicit CliProgram::Path.

process_spawn_ms: Option<u64>

Time spent spawning the CLI subprocess (command.spawn()). None for the external-server and in-process transports, which do not spawn a child.

port_wait_ms: Option<u64>

Time spent waiting for the TCP server to announce its listening port on stdout. Some only for the TCP transport.

transport_setup_ms: u64

Total transport setup time. This includes spawning and connecting to a subprocess, connecting to an external server, or starting the in-process FFI runtime. process_spawn_ms and port_wait_ms provide nested detail for spawned transports.

handshake_ms: u64

Time spent on the connect protocol handshake in Client::verify_protocol_version, including the fallback to the legacy ping RPC.

session_fs_ms: Option<u64>

Time spent registering the filesystem provider via sessionFs.setProvider. Some only when ClientOptions::session_fs is set.

llm_handler_ms: Option<u64>

Time spent registering the LLM inference provider via llmInference.setProvider. Some only when ClientOptions::request_handler is set.

total_ms: u64

Total wall-clock time for Client::start, from entry to the client being ready. Always present.

Trait Implementations

impl Clone for StartupTimings

fn clone(&self) -> StartupTimings

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for StartupTimings

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

Formats the value using the given formatter.

impl Default for StartupTimings

fn default() -> StartupTimings

Returns the “default value” for a type.

impl Eq for StartupTimings

impl PartialEq for StartupTimings

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for StartupTimings