Struct TimingStatistics 

pub struct TimingStatistics {

    pub overall_alg: TimedTask,
    pub print_problem_statistics: TimedTask,
    pub initialize_iterates: TimedTask,
    pub update_hessian: TimedTask,
    pub output_iteration: TimedTask,
    pub update_barrier_parameter: TimedTask,
    pub compute_search_direction: TimedTask,
    pub compute_acceptable_trial_point: TimedTask,
    pub accept_trial_point: TimedTask,
    pub check_convergence: TimedTask,
    pub linear_system_factorization: TimedTask,
    pub linear_system_back_solve: TimedTask,
    pub linear_system_structure_converter: TimedTask,
    pub linear_system_structure_converter_init: TimedTask,
    pub quality_function_search: TimedTask,
    pub total_callback_time: TimedTask,
    pub total_function_evaluation_time: TimedTask,
    pub eval_obj: TimedTask,
    pub eval_grad_obj: TimedTask,
    pub eval_constr: TimedTask,
    pub eval_constr_jac: TimedTask,
    pub eval_lag_hess: TimedTask,
}

Aggregate of per-subsystem TimedTask counters. Mirrors Algorithm/IpTimingStatistics.{hpp,cpp}. Owned by IpoptApplication and shared (via Rc) with the algorithm, NLP, and KKT solver so each subsystem can bump its own field. Reported at the end of a solve when print_timing_statistics yes.

Fields

overall_alg: TimedTask

print_problem_statistics: TimedTask

initialize_iterates: TimedTask

update_hessian: TimedTask

output_iteration: TimedTask

update_barrier_parameter: TimedTask

compute_search_direction: TimedTask

compute_acceptable_trial_point: TimedTask

accept_trial_point: TimedTask

check_convergence: TimedTask

linear_system_factorization: TimedTask

linear_system_back_solve: TimedTask

linear_system_structure_converter: TimedTask

linear_system_structure_converter_init: TimedTask

quality_function_search: TimedTask

total_callback_time: TimedTask

total_function_evaluation_time: TimedTask

eval_obj: TimedTask

eval_grad_obj: TimedTask

eval_constr: TimedTask

eval_constr_jac: TimedTask

eval_lag_hess: TimedTask

Implementations

impl TimingStatistics

pub fn new() -> TimingStatistics

pub fn report(&self) -> String

Format a per-subsystem timing report (wall-clock seconds, mirroring upstream IpoptApplication’s end-of-run “Timing Statistics” block but with sys/cpu columns omitted — pounce only tracks wall time). Lines are indented to reflect the upstream visual nesting (OverallAlgorithm → its phases; TotalFunctionEvaluations → its per-callback breakdown). Returns a multi-line string ending in a trailing newline so callers can print! it directly.

pub fn wall_time_breakdown(&self) -> Vec<(&'static str, f64)>

Structured wall-clock breakdown (seconds) of the major solve subsystems, as ordered (label, seconds) pairs. Same numbers Self::report prints, but as data rather than formatted text, so a programmatic consumer (e.g. the Python Problem.solve info dict) can attribute a solve’s runtime without scraping the report or patching the solver.

Ordered coarse→fine: the overall algorithm total; the linear-algebra split (linear_system_total = factorization + back-solve, with factorization broken out); and the per-callback function-evaluation split (objective / gradient / constraints / Jacobian / Lagrangian Hessian). This is exactly the func / Jacobian / Hessian time split issue #180 needs to reproduce a Table-6-style “where did the time go” analysis for a reduced-space / variable-aggregation solve.

pub fn set_detailed_enabled(&self, on: bool)

Enable or disable the detailed per-subsystem timers, mirroring upstream Ipopt’s timing_statistics gating (IpoptApplication only measures the detailed function/phase timers when timing_statistics=yes). When on is false every start() / end() on these tasks becomes a no-op, so a fast-objective solve stops paying two getrusage syscalls per timed section (issue #190).

Self::overall_alg is deliberately left untouched: its live_cpu_time() feeds the max_cpu_time convergence check and its total is reported regardless of the option — upstream’s help text is explicit that “the overall algorithm time is unaffected by this option”. Callers that need the detailed Self::wall_time_breakdown populated (the Python info["timing"] dict, the CLI timing.json) must therefore set timing_statistics (or print_timing_statistics, which implies it) to yes.

pub fn reset(&self)

Reset all counters. Mirrors upstream ResetTimes().

Trait Implementations

impl Debug for TimingStatistics

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

Formats the value using the given formatter.

impl Default for TimingStatistics

fn default() -> TimingStatistics

Returns the “default value” for a type.