diff --git a/hugot_test.go b/hugot_test.go
index 13c2acc..3b5f68b 100644
--- a/hugot_test.go
+++ b/hugot_test.go
@@ -155,14 +155,14 @@ func TestFeatureExtractionPipeline(t *testing.T) {
 	var expectedResults map[string][][]float32
 	Check(json.Unmarshal(resultsByte, &expectedResults))
 	var testResults [][]float32
-	var result [][]float32
+	var result pipelines.FeatureExtractionOutput
 	// test 'robert smith'
 
 	testResults = expectedResults["test1output"]
 	for i := 1; i <= 10; i++ {
 		result, err = pipeline.Run([]string{"robert smith"})
 		Check(err)
-		e := floatsEqual(result[0], testResults[0])
+		e := floatsEqual(result.Embeddings[0], testResults[0])
 		if e != nil {
 			t.Logf("Test 1: The neural network didn't produce the correct result on loop %d: %s\n", i, e)
 			t.FailNow()
@@ -174,7 +174,7 @@ func TestFeatureExtractionPipeline(t *testing.T) {
 	for i := 1; i <= 10; i++ {
 		result, err = pipeline.Run([]string{"robert smith junior", "francis ford coppola"})
 		Check(err)
-		for j, res := range result {
+		for j, res := range result.Embeddings {
 			e := floatsEqual(res, testResults[j])
 			if e != nil {
 				t.Logf("Test 2: The neural network didn't produce the correct result on loop %d: %s\n", i, e)
@@ -191,12 +191,12 @@ func TestFeatureExtractionPipeline(t *testing.T) {
 
 	for k, sentencePair := range testPairs {
 		// these vectors should be the same
-		firstRes, err := pipeline.Run(sentencePair[0])
-		Check(err)
-		firstEmbedding := firstRes[0]
-		secondRes, err := pipeline.Run(sentencePair[1])
-		Check(err)
-		secondEmbedding := secondRes[0]
+		firstRes, err2 := pipeline.Run(sentencePair[0])
+		Check(err2)
+		firstEmbedding := firstRes.Embeddings[0]
+		secondRes, err3 := pipeline.Run(sentencePair[1])
+		Check(err3)
+		secondEmbedding := secondRes.Embeddings[0]
 		e := floatsEqual(firstEmbedding, secondEmbedding)
 		if e != nil {
 			t.Logf("Equality failed for determinism test %s test with pairs %s and %s", k, strings.Join(sentencePair[0], ","), strings.Join(sentencePair[1], ","))
@@ -205,6 +205,11 @@ func TestFeatureExtractionPipeline(t *testing.T) {
 			t.Fail()
 		}
 	}
+
+	assert.Greater(t, pipeline.PipelineTimings.NumCalls, 0, "PipelineTimings.NumCalls should be greater than 0")
+	assert.Greater(t, pipeline.PipelineTimings.TotalNS, 0, "PipelineTimings.TotalNS should be greater than 0")
+	assert.Greater(t, pipeline.TokenizerTimings.NumCalls, 0, "TokenizerTimings.NumCalls should be greater than 0")
+	assert.Greater(t, pipeline.TokenizerTimings.TotalNS, 0, "TokenizerTimings.TotalNS should be greater than 0")
 }
 
 // utilities
diff --git a/pipelines/featureExtraction.go b/pipelines/featureExtraction.go
index e562b46..89eb7d8 100644
--- a/pipelines/featureExtraction.go
+++ b/pipelines/featureExtraction.go
@@ -15,7 +15,9 @@ type FeatureExtractionPipeline struct {
 	BasePipeline
 }
 
-type FeatureExtractionOutput [][]float32
+type FeatureExtractionOutput struct {
+	Embeddings [][]float32
+}
 
 // NewFeatureExtractionPipeline Initialize a feature extraction pipeline
 func NewFeatureExtractionPipeline(modelPath string, name string) (*FeatureExtractionPipeline, error) {
@@ -75,7 +77,7 @@ func (p *FeatureExtractionPipeline) Postprocess(batch PipelineBatch) (FeatureExt
 			vectorCounter++
 		}
 	}
-	return outputs, nil
+	return FeatureExtractionOutput{Embeddings: outputs}, nil
 }
 
 func meanPooling(tokens [][]float32, input TokenizedInput, maxSequence int, dimensions int) []float32 {
@@ -103,7 +105,7 @@ func (p *FeatureExtractionPipeline) Run(inputs []string) (FeatureExtractionOutpu
 	batch := p.Preprocess(inputs)
 	batch, forwardError := p.Forward(batch)
 	if forwardError != nil {
-		return nil, forwardError
+		return FeatureExtractionOutput{}, forwardError
 	}
 	return p.Postprocess(batch)
 }
diff --git a/pipelines/pipeline.go b/pipelines/pipeline.go
index 77ae9cc..e2d2b5c 100644
--- a/pipelines/pipeline.go
+++ b/pipelines/pipeline.go
@@ -196,8 +196,8 @@ func (p *BasePipeline) Preprocess(inputs []string) PipelineBatch {
 		}
 	}
 
-	atomic.AddUint64(&p.PipelineTimings.NumCalls, 1)
-	atomic.AddUint64(&p.PipelineTimings.TotalNS, uint64(time.Since(start)))
+	atomic.AddUint64(&p.TokenizerTimings.NumCalls, 1)
+	atomic.AddUint64(&p.TokenizerTimings.TotalNS, uint64(time.Since(start)))
 	batch := p.convertInputToTensors(outputs, maxSequence+1)
 	return batch
 }