diff --git a/internal/metrics/metrics.go b/internal/metrics/metrics.go
index d7579697..aa17955e 100644
--- a/internal/metrics/metrics.go
+++ b/internal/metrics/metrics.go
@@ -44,7 +44,6 @@ func (ma *Aggregator) AddFunctions(functions []nodetree.CallTreeFunction, result
 			fn.SampleCount += f.SampleCount
 			fn.DurationsNS = append(fn.DurationsNS, f.DurationsNS...)
 			fn.SumDurationNS += f.SumDurationNS
-			fn.SelfTimesNS = append(fn.SelfTimesNS, f.SelfTimesNS...)
 			fn.SumSelfTimeNS += f.SumSelfTimeNS
 			funcMetadata := ma.FunctionsMetadata[f.Fingerprint]
 			if f.SumSelfTimeNS > funcMetadata.MaxVal {
diff --git a/internal/metrics/metrics_test.go b/internal/metrics/metrics_test.go
index f2547a4f..02651c62 100644
--- a/internal/metrics/metrics_test.go
+++ b/internal/metrics/metrics_test.go
@@ -21,7 +21,6 @@ func TestAggregatorAddFunctions(t *testing.T) {
 				{
 					Function:      "a",
 					Fingerprint:   0,
-					SelfTimesNS:   []uint64{10, 5, 25},
 					SumSelfTimeNS: 40,
 					DurationsNS:   []uint64{10, 5, 25},
 					SumDurationNS: 40,
@@ -29,7 +28,6 @@ func TestAggregatorAddFunctions(t *testing.T) {
 				{
 					Function:      "b",
 					Fingerprint:   1,
-					SelfTimesNS:   []uint64{45, 60},
 					SumSelfTimeNS: 105,
 					DurationsNS:   []uint64{45, 60},
 					SumDurationNS: 105,
@@ -42,7 +40,6 @@ func TestAggregatorAddFunctions(t *testing.T) {
 					0: {
 						Function:      "a",
 						Fingerprint:   0,
-						SelfTimesNS:   []uint64{10, 5, 25, 10, 5, 25},
 						SumSelfTimeNS: 80,
 						DurationsNS:   []uint64{10, 5, 25, 10, 5, 25},
 						SumDurationNS: 80,
@@ -50,7 +47,6 @@ func TestAggregatorAddFunctions(t *testing.T) {
 					1: {
 						Function:      "b",
 						Fingerprint:   1,
-						SelfTimesNS:   []uint64{45, 60, 45, 60},
 						SumSelfTimeNS: 210,
 						DurationsNS:   []uint64{45, 60, 45, 60},
 						SumDurationNS: 210,
@@ -100,7 +96,6 @@ func TestAggregatorToMetrics(t *testing.T) {
 						Fingerprint:   0,
 						DurationsNS:   []uint64{1, 2, 3, 4, 10, 8, 7, 11, 20},
 						SumDurationNS: 66,
-						SelfTimesNS:   []uint64{1, 2, 3, 4, 10, 8, 7, 11, 20},
 						SumSelfTimeNS: 66,
 						SampleCount:   2,
 					},
@@ -109,7 +104,6 @@ func TestAggregatorToMetrics(t *testing.T) {
 						Fingerprint:   1,
 						DurationsNS:   []uint64{1, 2, 3, 4, 10, 8, 7, 11, 20},
 						SumDurationNS: 66,
-						SelfTimesNS:   []uint64{1, 2, 3, 4, 10, 8, 7, 11, 20},
 						SumSelfTimeNS: 66,
 						SampleCount:   2,
 					},
diff --git a/internal/nodetree/nodetree.go b/internal/nodetree/nodetree.go
index 1f8c59a4..f7184f98 100644
--- a/internal/nodetree/nodetree.go
+++ b/internal/nodetree/nodetree.go
@@ -124,7 +124,6 @@ type CallTreeFunction struct {
 	InApp         bool     `json:"in_app"`
 	DurationsNS   []uint64 `json:"durations_ns"`
 	SumDurationNS uint64   `json:"-"`
-	SelfTimesNS   []uint64 `json:"self_times_ns"`
 	SumSelfTimeNS uint64   `json:"-"`
 	SampleCount   int      `json:"-"`
 	ThreadID      string   `json:"thread_id"`
@@ -210,7 +209,6 @@ func (n *Node) CollectFunctions(
 				InApp:         n.IsApplication,
 				DurationsNS:   []uint64{n.DurationNS},
 				SumDurationNS: n.DurationNS,
-				SelfTimesNS:   []uint64{},
 				SumSelfTimeNS: 0,
 				SampleCount:   n.SampleCount,
 				ThreadID:      threadID,
@@ -229,7 +227,6 @@ func (n *Node) CollectFunctions(
 		}
 
 		if selfTimeNS > 0 {
-			function.SelfTimesNS = append(function.SelfTimesNS, selfTimeNS)
 			function.SumSelfTimeNS += selfTimeNS
 		}
 
diff --git a/internal/nodetree/nodetree_test.go b/internal/nodetree/nodetree_test.go
index 21973be3..41028952 100644
--- a/internal/nodetree/nodetree_test.go
+++ b/internal/nodetree/nodetree_test.go
@@ -43,7 +43,6 @@ func TestNodeTreeCollectFunctions(t *testing.T) {
 					Package:       "foo",
 					DurationsNS:   []uint64{10},
 					SumDurationNS: 10,
-					SelfTimesNS:   []uint64{10},
 					SumSelfTimeNS: 10,
 					MaxDuration:   10,
 				},
@@ -68,7 +67,6 @@ func TestNodeTreeCollectFunctions(t *testing.T) {
 					Package:       "foo",
 					DurationsNS:   []uint64{10},
 					SumDurationNS: 10,
-					SelfTimesNS:   []uint64{10},
 					SumSelfTimeNS: 10,
 					MaxDuration:   10,
 				},
@@ -103,7 +101,6 @@ func TestNodeTreeCollectFunctions(t *testing.T) {
 					Package:       "foo",
 					DurationsNS:   []uint64{20},
 					SumDurationNS: 20,
-					SelfTimesNS:   []uint64{10},
 					SumSelfTimeNS: 10,
 					MaxDuration:   10,
 				},
@@ -114,7 +111,6 @@ func TestNodeTreeCollectFunctions(t *testing.T) {
 					Package:       "bar",
 					DurationsNS:   []uint64{10},
 					SumDurationNS: 10,
-					SelfTimesNS:   []uint64{10},
 					SumSelfTimeNS: 10,
 					MaxDuration:   10,
 				},
@@ -167,7 +163,6 @@ func TestNodeTreeCollectFunctions(t *testing.T) {
 					Function:      "bar",
 					Package:       "bar",
 					DurationsNS:   []uint64{10},
-					SelfTimesNS:   []uint64{},
 					SumDurationNS: 10,
 					MaxDuration:   0,
 				},
@@ -178,7 +173,6 @@ func TestNodeTreeCollectFunctions(t *testing.T) {
 					Package:       "foo",
 					DurationsNS:   []uint64{10},
 					SumDurationNS: 10,
-					SelfTimesNS:   []uint64{10},
 					SumSelfTimeNS: 10,
 					MaxDuration:   10,
 				},
@@ -189,7 +183,6 @@ func TestNodeTreeCollectFunctions(t *testing.T) {
 					Package:       "baz",
 					DurationsNS:   []uint64{10},
 					SumDurationNS: 10,
-					SelfTimesNS:   []uint64{10},
 					SumSelfTimeNS: 10,
 					MaxDuration:   10,
 				},
@@ -200,7 +193,6 @@ func TestNodeTreeCollectFunctions(t *testing.T) {
 					Package:       "main",
 					DurationsNS:   []uint64{10},
 					SumDurationNS: 10,
-					SelfTimesNS:   []uint64{},
 					SumSelfTimeNS: 0,
 					MaxDuration:   0,
 				},
@@ -297,7 +289,6 @@ func TestNodeTreeCollectFunctions(t *testing.T) {
 					Function:      "bar",
 					Package:       "bar",
 					DurationsNS:   []uint64{10, 20},
-					SelfTimesNS:   []uint64{},
 					SumDurationNS: 30,
 					MaxDuration:   0,
 				},
@@ -308,7 +299,6 @@ func TestNodeTreeCollectFunctions(t *testing.T) {
 					Package:       "foo",
 					DurationsNS:   []uint64{10, 20},
 					SumDurationNS: 30,
-					SelfTimesNS:   []uint64{10, 20},
 					SumSelfTimeNS: 30,
 					MaxDuration:   20,
 				},
@@ -319,7 +309,6 @@ func TestNodeTreeCollectFunctions(t *testing.T) {
 					Package:       "baz",
 					DurationsNS:   []uint64{10, 20},
 					SumDurationNS: 30,
-					SelfTimesNS:   []uint64{10, 20},
 					SumSelfTimeNS: 30,
 					MaxDuration:   20,
 				},
@@ -330,7 +319,6 @@ func TestNodeTreeCollectFunctions(t *testing.T) {
 					Package:       "qux",
 					DurationsNS:   []uint64{10},
 					SumDurationNS: 10,
-					SelfTimesNS:   []uint64{10},
 					SumSelfTimeNS: 10,
 					MaxDuration:   10,
 				},
@@ -341,7 +329,6 @@ func TestNodeTreeCollectFunctions(t *testing.T) {
 					Package:       "main",
 					DurationsNS:   []uint64{40},
 					SumDurationNS: 40,
-					SelfTimesNS:   []uint64{10},
 					SumSelfTimeNS: 10,
 					MaxDuration:   10,
 				},
@@ -396,7 +383,6 @@ func TestNodeTreeCollectFunctions(t *testing.T) {
 					InApp:         true,
 					DurationsNS:   []uint64{10},
 					SumDurationNS: 10,
-					SelfTimesNS:   []uint64{10},
 					SumSelfTimeNS: 10,
 					MaxDuration:   10,
 				},
@@ -433,7 +419,6 @@ func TestNodeTreeCollectFunctions(t *testing.T) {
 					InApp:         true,
 					DurationsNS:   []uint64{10},
 					SumDurationNS: 10,
-					SelfTimesNS:   []uint64{10},
 					SumSelfTimeNS: 10,
 					MaxDuration:   10,
 				},