From 0b32df937fbd17f80f080b8d312348e4a2685c9f Mon Sep 17 00:00:00 2001
From: hasslesstech <hasslesstech@tutanota.com>
Date: Sun, 8 Nov 2026 20:25:43 +0200
Subject: [PATCH] lab5: add print_stats() per requirements

---
 inc/dyn-pipeline.hpp     |  4 ++++
 src/dyn-pipeline-ooe.cpp | 33 ++++++++++++++++++++++++++++++---
 src/dyn-pipeline.cpp     | 31 +++++++++++++++++++++++++++++--
 src/main.cpp             |  1 +
 4 files changed, 64 insertions(+), 5 deletions(-)

diff --git a/inc/dyn-pipeline.hpp b/inc/dyn-pipeline.hpp
index ca1bf9c..5c5d883 100644
--- a/inc/dyn-pipeline.hpp
+++ b/inc/dyn-pipeline.hpp
@@ -59,6 +59,7 @@ private:
 	std::vector<Command> *program_memory;
 	std::array<MemCell, DYN_PIPELINE_MEM_SIZE> data_memory;
 	std::array<int, DYN_PIPELINE_LAYERS> layer_cmd {-1};
+	std::vector<std::pair<int, int>> layer_util;
 	unsigned int pc {0};
 	unsigned int system_time;
 
@@ -72,6 +73,7 @@ private:
 public:
 	void init(const std::vector<Command> * const prg, const std::array<double, DYN_PIPELINE_MEM_SIZE>& mem, const int init_mem_size);
 	void run(void);
+	void print_stats(void) const;
 };
 
 class SystemOOE
@@ -80,6 +82,7 @@ private:
 	std::vector<CommandOOE> *program_memory;
 	std::array<MemCell, DYN_PIPELINE_MEM_SIZE> data_memory;
 	std::array<int, DYN_PIPELINE_LAYERS> layer_cmd {-1};
+	std::vector<std::pair<int, int>> layer_util;
 	unsigned int system_time;
 
 	void print_program_memory(void) const;
@@ -92,6 +95,7 @@ private:
 public:
 	void init(const std::vector<CommandOOE> * const prg, const std::array<double, DYN_PIPELINE_MEM_SIZE>& mem, const int init_mem_size);
 	void run(void);
+	void print_stats(void) const;
 };
 
 }
diff --git a/src/dyn-pipeline-ooe.cpp b/src/dyn-pipeline-ooe.cpp
index 224023e..59f86bc 100644
--- a/src/dyn-pipeline-ooe.cpp
+++ b/src/dyn-pipeline-ooe.cpp
@@ -6,7 +6,7 @@
 
 namespace DynamicPipeline {
 
-static int weight_op(DynamicPipeline::CommandType o)
+[[nodiscard]] static int weight_op(DynamicPipeline::CommandType o)
 {
 	return Expression::Token::weight_op(static_cast<Expression::Token::Operator>(o + 2));
 }
@@ -159,8 +159,9 @@ void SystemOOE::step(void)
 {
 	pr_info("Step start time: " << system_time << " ticks");
 
-	// count time
-	int time_taken = 1;
+	// count time + record layer_util
+	int time_taken = 0;
+	int util = 0;
 	for (int i = 0; i < DYN_PIPELINE_LAYERS; i++)
 	{
 		if (layer_cmd[i] == -1)
@@ -168,11 +169,14 @@ void SystemOOE::step(void)
 			continue;
 		}
 
+		util++; // layer is loaded with operation
+
 		if (const int d = weight_op((*program_memory)[layer_cmd[i]].t); d > time_taken)
 		{
 			time_taken = d;
 		}
 	}
+	layer_util.emplace_back(util, time_taken);
 
 	system_time += time_taken;
 
@@ -221,4 +225,27 @@ void SystemOOE::run(void)
 	pr_info("System finished in " << system_time << " ticks");
 }
 
+void SystemOOE::print_stats(void) const
+{
+	int total_prog_time = 0;
+
+	for (unsigned int i = 0; i < program_memory->size(); i++)
+	{
+		total_prog_time += weight_op((*program_memory)[i].t) * DYN_PIPELINE_LAYERS;
+	}
+
+	pr_info("S = " << total_prog_time << " / " << system_time
+		<< " = " << (float) total_prog_time / system_time);
+
+	int total_pipeline_used = 0;
+
+	for (unsigned int i = 0; i < layer_util.size(); i++)
+	{
+		total_pipeline_used += layer_util[i].first * layer_util[i].second;
+	}
+
+	pr_info("E = " << total_pipeline_used << " / " << system_time * DYN_PIPELINE_LAYERS
+		<< " = " << (float) total_pipeline_used / (system_time * DYN_PIPELINE_LAYERS));
+}
+
 }
diff --git a/src/dyn-pipeline.cpp b/src/dyn-pipeline.cpp
index 7a226a2..d6a5f21 100644
--- a/src/dyn-pipeline.cpp
+++ b/src/dyn-pipeline.cpp
@@ -6,7 +6,7 @@
 
 namespace DynamicPipeline {
 
-static int weight_op(DynamicPipeline::CommandType o)
+[[nodiscard]] static int weight_op(DynamicPipeline::CommandType o)
 {
 	return Expression::Token::weight_op(static_cast<Expression::Token::Operator>(o + 2));
 }
@@ -145,8 +145,9 @@ void System::step(void)
 {
 	pr_info("Step start time: " << system_time << " ticks");
 
-	// count time
+	// count time + record layer_util
 	int time_taken = 1;
+	int util = 0;
 	for (int i = 0; i < DYN_PIPELINE_LAYERS; i++)
 	{
 		if (layer_cmd[i] == -1)
@@ -154,11 +155,14 @@ void System::step(void)
 			continue;
 		}
 
+		util++; // layer is loaded with operation
+
 		if (const int d = weight_op((*program_memory)[layer_cmd[i]].t); d > time_taken)
 		{
 			time_taken = d;
 		}
 	}
+	layer_util.emplace_back(util, time_taken);
 
 	system_time += time_taken;
 
@@ -207,4 +211,27 @@ void System::run(void)
 	pr_info("System finished in " << system_time << " ticks");
 }
 
+void System::print_stats(void) const
+{
+	int total_prog_time = 0;
+
+	for (unsigned int i = 0; i < program_memory->size(); i++)
+	{
+		total_prog_time += weight_op((*program_memory)[i].t) * DYN_PIPELINE_LAYERS;
+	}
+
+	pr_info("S = " << total_prog_time << " / " << system_time
+		<< " = " << (float) total_prog_time / system_time);
+
+	int total_pipeline_used = 0;
+
+	for (unsigned int i = 0; i < layer_util.size(); i++)
+	{
+		total_pipeline_used += layer_util[i].first * layer_util[i].second;
+	}
+
+	pr_info("E = " << total_pipeline_used << " / " << system_time * DYN_PIPELINE_LAYERS
+		<< " = " << (float) total_pipeline_used / (system_time * DYN_PIPELINE_LAYERS));
+}
+
 }
diff --git a/src/main.cpp b/src/main.cpp
index 9f027c1..bc5a510 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -40,4 +40,5 @@ int main(int argc, char **argv)
 	machine.init(&program, memory, mem_used);
 #endif
 	machine.run();
+	machine.print_stats();
 }