From 876e7174629f92f7af55a6dc7e9b030758d31742 Mon Sep 17 00:00:00 2001
From: Eggert Jung <eggert.s.jung@wischhof13.de>
Date: Sat, 10 Jan 2026 22:40:44 +0100
Subject: [PATCH] stats

---
 kernel/memory/pageframealloc.cc | 19 ++++++++++++++++++-
 1 file changed, 18 insertions(+), 1 deletion(-)

diff --git a/kernel/memory/pageframealloc.cc b/kernel/memory/pageframealloc.cc
index 9b38975..03840f7 100644
--- a/kernel/memory/pageframealloc.cc
+++ b/kernel/memory/pageframealloc.cc
@@ -16,7 +16,6 @@ void PageFrameAllocator::init(){
         void* start =  memory_map_entry->getStartAddress();
         void* end =  memory_map_entry->getEndAddress();
         bool available = memory_map_entry->isAvailable();
-        dout << "Memory: " << hex << start << " to " << end << " is available: " << available << "." << endl;
 
         //TODO priotity for conflicting regions
         for(uint64_t i = (uint64_t)start; i < (uint64_t)end; i += 4096){
@@ -35,9 +34,27 @@ void PageFrameAllocator::init(){
         bitmap[pg/8] &= ~(1 << pg%8);
     }
 
+    stats();
 }
 
 void PageFrameAllocator::stats(){
+    Multiboot::Memory* memory_map_entry = Multiboot::getMemoryMap();
+    while(memory_map_entry != 0){
+        void* start =  memory_map_entry->getStartAddress();
+        void* end =  memory_map_entry->getEndAddress();
+        bool available = memory_map_entry->isAvailable();
+        dout << "Memory: " << hex << start << " to " << end << " is available: " << available << "." << endl;
+        memory_map_entry = memory_map_entry->getNext();
+    }
+
+    uint64_t pages_available = 0;
+    for(uint64_t i=0; i<sizeof(bitmap)*8;i++)
+    {
+        if(bitmap[i/8] & (1<<i%8))
+            pages_available++;
+    }
+    dout << "pages available: " << dec << pages_available << endl;
+
 }
 
 PageFrame* PageFrameAllocator::alloc(bool kernel){