Expand reporting of timing information.
1. Add an ExecutionSummary object to record execution
information about Ceres objects.
2. Add an EventLogger object to log events in a function call.
3. Add a ScopedExecutionTimer object to log times in ExecutionSummary.
4. Instrument ProgramEvaluator and all the linear solvers
to report their timing statistics.
5. Connect the timing statistics to Summary::FullReport.
6. Add high precision timer on unix systems using
gettimeofday() call.
7. Various minor clean ups all around.
Change-Id: I5e09804b730b09535484124be7dbc1c58eccd1d4
diff --git a/internal/ceres/program_evaluator.h b/internal/ceres/program_evaluator.h
index 1ecf4aa..e9640ab 100644
--- a/internal/ceres/program_evaluator.h
+++ b/internal/ceres/program_evaluator.h
@@ -88,6 +88,7 @@
#include "ceres/residual_block.h"
#include "ceres/internal/eigen.h"
#include "ceres/internal/scoped_ptr.h"
+#include "ceres/execution_summary.h"
namespace ceres {
namespace internal {
@@ -122,6 +123,12 @@
double* residuals,
double* gradient,
SparseMatrix* jacobian) {
+ ScopedExecutionTimer total_timer("Evaluator::Total", &execution_summary_);
+ ScopedExecutionTimer call_type_timer(gradient == NULL && jacobian == NULL
+ ? "Evaluator::Residual"
+ : "Evaluator::Jacobian",
+ &execution_summary_);
+
// The parameters are stateful, so set the state before evaluating.
if (!program_->StateVectorToParameterBlocks(state)) {
return false;
@@ -266,6 +273,14 @@
return program_->NumResiduals();
}
+ virtual map<string, int> CallStatistics() const {
+ return execution_summary_.calls();
+ }
+
+ virtual map<string, double> TimeStatistics() const {
+ return execution_summary_.times();
+ }
+
private:
// Per-thread scratch space needed to evaluate and store each residual block.
struct EvaluateScratch {
@@ -331,6 +346,7 @@
scoped_array<EvaluatePreparer> evaluate_preparers_;
scoped_array<EvaluateScratch> evaluate_scratch_;
vector<int> residual_layout_;
+ ::ceres::internal::ExecutionSummary execution_summary_;
};
} // namespace internal
