Memory statistics (total memory, memory usage, Undo / Redo stack size)

into the System INfo dialog.

src/slic3r/GUI/Plater.cpp

@@ -4564,15 +4564,9 @@ bool Plater::can_copy_to_clipboard() const
     return true;
 }
 
-bool Plater::can_undo() const
-{
-    return p->undo_redo_stack.has_undo_snapshot();
-}
-
-bool Plater::can_redo() const
-{
-    return p->undo_redo_stack.has_redo_snapshot();
-}
+bool Plater::can_undo() const { return p->undo_redo_stack.has_undo_snapshot(); }
+bool Plater::can_redo() const { return p->undo_redo_stack.has_redo_snapshot(); }
+const UndoRedo::Stack& Plater::undo_redo_stack() const { return p->undo_redo_stack; }
 
 SuppressBackgroundProcessingUpdate::SuppressBackgroundProcessingUpdate() :
     m_was_running(wxGetApp().plater()->is_background_process_running())

src/slic3r/GUI/Plater.hpp

@@ -27,6 +27,11 @@ class ModelObject;
 class Print;
 class SLAPrint;
 
+namespace UndoRedo {
+	class Stack;
+	struct Snapshot;	
+};
+
 namespace GUI {
 
 class MainFrame;
@@ -191,6 +196,7 @@ public:
     void undo_to(int selection);
     void redo_to(int selection);
     bool undo_redo_string_getter(const bool is_undo, int idx, const char** out_text);
+    const Slic3r::UndoRedo::Stack& undo_redo_stack() const;
 
     void on_extruders_change(int extruders_count);
     void on_config_change(const DynamicPrintConfig &config);

src/slic3r/GUI/SysInfoDialog.cpp

@@ -2,6 +2,7 @@
 #include "I18N.hpp"
 #include "3DScene.hpp"
 #include "GUI.hpp"
+#include "../Utils/UndoRedo.hpp"
 
 #include <string>
 
@@ -10,6 +11,14 @@
 #include "GUI_App.hpp"
 #include "wxExtensions.hpp"
 
+#ifdef _WIN32
+	// The standard Windows includes.
+	#define WIN32_LEAN_AND_MEAN
+	#define NOMINMAX
+	#include <Windows.h>
+	#include <psapi.h>
+#endif /* _WIN32 */
+
 namespace Slic3r { 
 namespace GUI {
 
@@ -36,10 +45,37 @@ std::string get_main_info(bool format_as_html)
         "System Version:      "
 #endif
         << b_end << wxPlatformInfo::Get().GetOperatingSystemDescription() << line_end;
+    out << b_start << "Total RAM size [MB]: "  << b_end << Slic3r::format_memsize_MB(Slic3r::total_physical_memory());
 
     return out.str();
 }
 
+std::string get_mem_info(bool format_as_html)
+{
+    std::stringstream out;
+
+    std::string b_start  = format_as_html ? "<b>"  : "";
+    std::string b_end    = format_as_html ? "</b>" : "";
+    std::string line_end = format_as_html ? "<br>" : "\n";
+
+    const Slic3r::UndoRedo::Stack &stack = wxGetApp().plater()->undo_redo_stack();
+    out << b_start << "RAM size reserved for the Undo / Redo stack [MB]: "  << b_end << Slic3r::format_memsize_MB(stack.get_memory_limit()) << line_end;
+    out << b_start << "RAM size occupied by the Undo / Redo stack  [MB]: "  << b_end << Slic3r::format_memsize_MB(stack.memsize()) << line_end << line_end;
+
+#ifdef _WIN32
+   	HANDLE hProcess = ::OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, ::GetCurrentProcessId());
+    if (hProcess != nullptr) {
+        PROCESS_MEMORY_COUNTERS_EX pmc;
+        if (GetProcessMemoryInfo(hProcess, (PROCESS_MEMORY_COUNTERS*)&pmc, sizeof(pmc)))
+			out << b_start << "WorkingSet     [MB]: "   << b_end << format_memsize_MB(pmc.WorkingSetSize) << line_end
+				<< b_start << "PrivateBytes   [MB]: " << b_end << format_memsize_MB(pmc.PrivateUsage) << line_end
+				<< b_start << "Pagefile(peak) [MB]: " << b_end << format_memsize_MB(pmc.PagefileUsage) << "(" << format_memsize_MB(pmc.PeakPagefileUsage) << ")" << line_end;
+        CloseHandle(hProcess);
+    }
+#endif
+    return out.str();
+}
+
 SysInfoDialog::SysInfoDialog()
     : DPIDialog(NULL, wxID_ANY, wxString(SLIC3R_APP_NAME) + " - " + _(L("System Information")), wxDefaultPosition, wxDefaultSize, wxDEFAULT_DIALOG_STYLE|wxRESIZE_BORDER)
 {
@@ -111,7 +147,7 @@ SysInfoDialog::SysInfoDialog()
             "</font>"
             "</body>"
             "</html>", bgr_clr_str, text_clr_str, text_clr_str,
-            _3DScene::get_gl_info(true, true));
+            get_mem_info(true) + "<br>" + _3DScene::get_gl_info(true, true));
         m_opengl_info_html->SetPage(text);
         main_sizer->Add(m_opengl_info_html, 1, wxEXPAND | wxBOTTOM, 15);
     }

src/slic3r/Utils/UndoRedo.cpp

@@ -486,6 +486,7 @@ public:
 	StackImpl() : m_memory_limit(std::min(Slic3r::total_physical_memory() / 10, size_t(1 * 16384 * 65536 / UNDO_REDO_DEBUG_LOW_MEM_FACTOR))), m_active_snapshot_time(0), m_current_time(0) {}
 
 	void set_memory_limit(size_t memsize) { m_memory_limit = memsize; }
+	size_t get_memory_limit() const { return m_memory_limit; }
 
 	size_t memsize() const {
 		size_t memsize = 0;
@@ -1018,6 +1019,7 @@ void StackImpl::release_least_recently_used()
 Stack::Stack() : pimpl(new StackImpl()) {}
 Stack::~Stack() {}
 void Stack::set_memory_limit(size_t memsize) { pimpl->set_memory_limit(memsize); }
+size_t Stack::get_memory_limit() const { return pimpl->get_memory_limit(); }
 size_t Stack::memsize() const { return pimpl->memsize(); }
 void Stack::release_least_recently_used() { pimpl->release_least_recently_used(); }
 void Stack::take_snapshot(const std::string& snapshot_name, const Slic3r::Model& model, const Slic3r::GUI::Selection& selection, const Slic3r::GUI::GLGizmosManager& gizmos, Slic3r::PrinterTechnology printer_technology, unsigned int flags)

src/slic3r/Utils/UndoRedo.hpp

@@ -68,6 +68,7 @@ public:
 
 	// Set maximum memory threshold. If the threshold is exceeded, least recently used snapshots are released.
 	void set_memory_limit(size_t memsize);
+	size_t get_memory_limit() const;
 
 	// Estimate size of the RAM consumed by the Undo / Redo stack.
 	size_t memsize() const;