fix(ram): do not read from cgroup

pkg/xsysinfo/gpu.go

@@ -3,13 +3,11 @@ package xsysinfo
 import (
 	"bytes"
 	"encoding/json"
-	"fmt"
 	"os/exec"
 	"strconv"
 	"strings"
 	"sync"
 
-	sigar "github.com/cloudfoundry/gosigar"
 	"github.com/jaypipes/ghw"
 	"github.com/jaypipes/ghw/pkg/gpu"
 	"github.com/rs/zerolog/log"
@@ -53,15 +51,6 @@ type GPUAggregateInfo struct {
 	GPUCount     int     `json:"gpu_count"`
 }
 
-// SystemRAMInfo contains system RAM usage information
-type SystemRAMInfo struct {
-	Total        uint64  `json:"total"`
-	Used         uint64  `json:"used"`
-	Free         uint64  `json:"free"`
-	Available    uint64  `json:"available"`
-	UsagePercent float64 `json:"usage_percent"`
-}
-
 // AggregateMemoryInfo contains aggregate memory information (unified for GPU/RAM)
 type AggregateMemoryInfo struct {
 	TotalMemory  uint64  `json:"total_memory"`
@@ -144,21 +133,6 @@ func isUnifiedMemoryDevice(gpuName string) bool {
 	return false
 }
 
-// getSystemRAM returns system RAM information using ghw
-func getSystemRAM() (total, used, free uint64, err error) {
-	mem := sigar.Mem{}
-	//swap := sigar.Swap{}
-
-	mem.Get() //nolint:errcheck
-	//swap.Get() //nolint:errcheck
-
-	total = mem.Total
-	free = mem.ActualFree
-	used = mem.ActualUsed
-
-	return total, used, free, nil
-}
-
 // GetGPUMemoryUsage returns real-time GPU memory usage for all detected GPUs.
 // It tries multiple vendor-specific tools in order: NVIDIA, AMD, Intel, Vulkan.
 // Returns an empty slice if no GPU monitoring tools are available.
@@ -558,29 +532,6 @@ func getIntelGPUTop() []GPUMemoryInfo {
 	return nil
 }
 
-// GetSystemRAMInfo returns real-time system RAM usage
-func GetSystemRAMInfo() (*SystemRAMInfo, error) {
-	total, used, free, err := getSystemRAM()
-	if err != nil {
-		return nil, err
-	}
-
-	usagePercent := 0.0
-	if total > 0 {
-		usagePercent = float64(used) / float64(total) * 100
-	}
-
-	fmt.Println("total", total, "used", used, "free", free)
-
-	return &SystemRAMInfo{
-		Total:        total,
-		Used:         used,
-		Free:         free,
-		Available:    total - used,
-		UsagePercent: usagePercent,
-	}, nil
-}
-
 // GetResourceInfo returns GPU info if available, otherwise system RAM info
 func GetResourceInfo() ResourceInfo {
 	gpus := GetGPUMemoryUsage()

pkg/xsysinfo/memory.go

@@ -0,0 +1,47 @@
+package xsysinfo
+
+import (
+	sigar "github.com/cloudfoundry/gosigar"
+	"github.com/rs/zerolog/log"
+)
+
+// SystemRAMInfo contains system RAM usage information
+type SystemRAMInfo struct {
+	Total        uint64  `json:"total"`
+	Used         uint64  `json:"used"`
+	Free         uint64  `json:"free"`
+	Available    uint64  `json:"available"`
+	UsagePercent float64 `json:"usage_percent"`
+}
+
+// GetSystemRAMInfo returns real-time system RAM usage
+func GetSystemRAMInfo() (*SystemRAMInfo, error) {
+	total, used, free, err := getSystemRAM()
+	if err != nil {
+		return nil, err
+	}
+
+	usagePercent := 0.0
+	if total > 0 {
+		usagePercent = float64(used) / float64(total) * 100
+	}
+	log.Debug().Uint64("total", total).Uint64("used", used).Uint64("free", free).Float64("usage_percent", usagePercent).Msg("System RAM Info")
+	return &SystemRAMInfo{
+		Total:        total,
+		Used:         used,
+		Free:         free,
+		Available:    total - used,
+		UsagePercent: usagePercent,
+	}, nil
+}
+
+// getSystemRAM returns system RAM information using ghw
+func getSystemRAM() (total, used, free uint64, err error) {
+	mem := sigar.Mem{}
+
+	if err := mem.GetIgnoringCGroups(); err != nil {
+		return 0, 0, 0, err
+	}
+
+	return mem.Total, mem.ActualUsed, mem.ActualFree, nil
+}