add buffers and cache info

Signed-off-by: Vladimir Mandic <mandic00@live.com>

CHANGELOG.md

@@ -1,6 +1,6 @@
 # Change Log for SD.Next
 
-## Update for 2025-09-29
+## Update for 2025-09-30
 
 - **Models**
   - [WAN 2.2 14B VACE](https://huggingface.co/alibaba-pai/Wan2.2-VACE-Fun-A14B)  
@@ -56,6 +56,8 @@
   - **interrrupt** will now show last known preview image  
     *keep incomplete* setting is now *save interrupted*  
   - **logging** enable `debug`, `docs` and `api-docs` by default  
+  - **logging** add detailed ram/vram utilization info to log  
+    logging frequency can be specified using `--monitor x` command line param, where x is number of seconds  
   - **ipex** simplify internal implementation  
   - refactor to use new libraries  
   - styles and wildcards now use same seed as main generate for reproducible results  

modules/memstats.py

@@ -65,13 +65,17 @@ def ram_stats():
             fail_once = True
     try:
         vmem = psutil.virtual_memory()
-        ram['used'] = gb(vmem.used)
-        ram['free'] = gb(vmem.free)
-        ram['avail'] = gb(vmem.available)
+        ram['used'] = gb(vmem.used) if hasattr(vmem, 'used') else 0
+        ram['free'] = gb(vmem.free) if hasattr(vmem, 'free') else 0
+        ram['avail'] = gb(vmem.available) if hasattr(vmem, 'available') else 0
+        ram['buffers'] = gb(vmem.buffers) if hasattr(vmem, 'buffers') else 0
+        ram['cached'] = gb(vmem.cached) if hasattr(vmem, 'cached') else 0
     except Exception as e:
         ram['used'] = 0
         ram['free'] = 0
         ram['avail'] = 0
+        ram['buffers'] = 0
+        ram['cached'] = 0
         ram['error'] = str(e)
         if not fail_once:
             shared.log.error(f'RAM stats: {e}')