From 2f2ab19c0b5bc78a4e6aa93099c3627ee3973495 Mon Sep 17 00:00:00 2001
From: Pulse Monitor <pulse@pulse-monitor.dev>
Date: Mon, 11 Aug 2025 08:45:49 +0000
Subject: [PATCH] fix: QEMU guest agent VMs now show memory usage correctly

- Fall back to vmStatus.Mem when guest agent doesn't report FreeMem
- Fixes issue where VMs with guest agent showed 0% memory usage
- Addresses issue #294
---
 internal/monitoring/monitor.go | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/internal/monitoring/monitor.go b/internal/monitoring/monitor.go
index 7506269f4..b74789dd7 100644
--- a/internal/monitoring/monitor.go
+++ b/internal/monitoring/monitor.go
@@ -857,9 +857,12 @@ func (m *Monitor) pollVMs(ctx context.Context, instanceName string, client PVECl
 					if vmStatus.FreeMem > 0 {
 						// Guest agent reports free memory, so calculate used
 						memUsed = memTotal - vmStatus.FreeMem
+					} else if vmStatus.Mem > 0 {
+						// No guest agent free memory data, but we have actual memory usage
+						// Use the reported memory usage from Proxmox
+						memUsed = vmStatus.Mem
 					} else {
-						// No guest agent data - show 0% usage instead of incorrect 100%
-						// This indicates the guest agent is not installed/running
+						// No memory data available at all - show 0% usage
 						memUsed = 0
 					}
 				} else {