diff --git a/src/core/metrics/metrics_util.go b/src/core/metrics/metrics_util.go
index 288cca0132..43b2ea7381 100644
--- a/src/core/metrics/metrics_util.go
+++ b/src/core/metrics/metrics_util.go
@@ -140,7 +140,6 @@ func GetCalculationMap() map[string]string {
 		"system.mem.shared":                                  "avg",
 		"system.mem.total":                                   "avg",
 		"system.mem.used":                                    "avg",
-		"system.mem.used.all":                                "avg",
 		"system.load.1":                                      "avg",
 		"system.load.15":                                     "avg",
 		"system.load.5":                                      "avg",
diff --git a/src/core/metrics/sources/mem.go b/src/core/metrics/sources/mem.go
index 6531b8b7cc..77e801ca8e 100644
--- a/src/core/metrics/sources/mem.go
+++ b/src/core/metrics/sources/mem.go
@@ -53,7 +53,6 @@ func (c *VirtualMemory) Collect(ctx context.Context, wg *sync.WaitGroup, m chan<
 	simpleMetrics := c.convertSamplesToSimpleMetrics(map[string]float64{
 		"total":     float64(memstats.Total),
 		"used":      float64(memstats.Used),
-		"used.all":  float64(memstats.Total - memstats.Available),
 		"cached":    float64(memstats.Cached),
 		"buffered":  float64(memstats.Buffers),
 		"shared":    float64(memstats.Shared),
diff --git a/src/core/metrics/sources/mem_test.go b/src/core/metrics/sources/mem_test.go
index 901819d33a..1847f453f3 100644
--- a/src/core/metrics/sources/mem_test.go
+++ b/src/core/metrics/sources/mem_test.go
@@ -79,7 +79,6 @@ func TestVirtualMemoryCollect(t *testing.T) {
 		"test.mem.shared",
 		"test.mem.total",
 		"test.mem.used",
-		"test.mem.used.all",
 	}
 
 	assert.Equal(t, expected, actualMetricNames)
diff --git a/test/integration/api/api_test.go b/test/integration/api/api_test.go
index 1f648d9b5d..8536683b57 100644
--- a/test/integration/api/api_test.go
+++ b/test/integration/api/api_test.go
@@ -90,10 +90,6 @@ func TestAPI_Metrics(t *testing.T) {
 			value, _ := strconv.ParseFloat(metric[1], 64)
 			assert.Greater(t, value, float64(0))
 
-		case strings.Contains(metric[0], "system_mem_used_all"):
-			value, _ := strconv.ParseFloat(metric[1], 64)
-			assert.Greater(t, value, float64(0))
-
 		case strings.Contains(metric[0], "container_cpu_cores"):
 			value, _ := strconv.ParseFloat(metric[1], 64)
 			assert.Greater(t, value, float64(0))
diff --git a/test/performance/vendor/github.com/nginx/agent/v2/src/core/metrics/metrics_util.go b/test/performance/vendor/github.com/nginx/agent/v2/src/core/metrics/metrics_util.go
index 288cca0132..43b2ea7381 100644
--- a/test/performance/vendor/github.com/nginx/agent/v2/src/core/metrics/metrics_util.go
+++ b/test/performance/vendor/github.com/nginx/agent/v2/src/core/metrics/metrics_util.go
@@ -140,7 +140,6 @@ func GetCalculationMap() map[string]string {
 		"system.mem.shared":                                  "avg",
 		"system.mem.total":                                   "avg",
 		"system.mem.used":                                    "avg",
-		"system.mem.used.all":                                "avg",
 		"system.load.1":                                      "avg",
 		"system.load.15":                                     "avg",
 		"system.load.5":                                      "avg",
diff --git a/test/performance/vendor/github.com/nginx/agent/v2/src/core/metrics/sources/mem.go b/test/performance/vendor/github.com/nginx/agent/v2/src/core/metrics/sources/mem.go
index 6531b8b7cc..77e801ca8e 100644
--- a/test/performance/vendor/github.com/nginx/agent/v2/src/core/metrics/sources/mem.go
+++ b/test/performance/vendor/github.com/nginx/agent/v2/src/core/metrics/sources/mem.go
@@ -53,7 +53,6 @@ func (c *VirtualMemory) Collect(ctx context.Context, wg *sync.WaitGroup, m chan<
 	simpleMetrics := c.convertSamplesToSimpleMetrics(map[string]float64{
 		"total":     float64(memstats.Total),
 		"used":      float64(memstats.Used),
-		"used.all":  float64(memstats.Total - memstats.Available),
 		"cached":    float64(memstats.Cached),
 		"buffered":  float64(memstats.Buffers),
 		"shared":    float64(memstats.Shared),