diff --git a/plugins/parsers/json/parser_test.go b/plugins/parsers/json/parser_test.go
index 3f6b1ecbb..75d37d73a 100644
--- a/plugins/parsers/json/parser_test.go
+++ b/plugins/parsers/json/parser_test.go
@@ -9,6 +9,7 @@ import (
 
 	"github.com/influxdata/telegraf"
 	"github.com/influxdata/telegraf/internal/fuzz"
+	"github.com/influxdata/telegraf/metric"
 	"github.com/influxdata/telegraf/testutil"
 )
 
@@ -76,52 +77,86 @@ const validJSONArrayTags = `
 ]
 `
 
+const benchmarkData = `
+[
+	{
+	"name": "impression",
+	"timestamp": 1653643420,
+	"fields": {
+		"count_sum": 5
+	},
+	"tags": {
+		"key": "12345",
+		"flagname": "F5",
+		"host": "1cbbb3796fc2",
+		"platform": "Java",
+		"sdkver": "4.9.1",
+		"value": "false"
+	}
+	},
+	{
+	"name": "expression",
+	"timestamp": 1653646789,
+	"fields": {
+		"count_sum": 42
+	},
+	"tags": {
+		"key": "67890",
+		"flagname": "E42",
+		"host": "klaus",
+		"platform": "Golang",
+		"sdkver": "1.18.3",
+		"value": "true"
+	}
+	}
+]`
+
 func TestParseValidJSON(t *testing.T) {
 	parser := &Parser{MetricName: "json_test"}
 	require.NoError(t, parser.Init())
 
 	// Most basic vanilla test
-	metrics, err := parser.Parse([]byte(validJSON))
+	actual, err := parser.Parse([]byte(validJSON))
 	require.NoError(t, err)
-	require.Len(t, metrics, 1)
-	require.Equal(t, "json_test", metrics[0].Name())
+	require.Len(t, actual, 1)
+	require.Equal(t, "json_test", actual[0].Name())
 	require.Equal(t, map[string]interface{}{
 		"a":   float64(5),
 		"b_c": float64(6),
-	}, metrics[0].Fields())
-	require.Equal(t, map[string]string{}, metrics[0].Tags())
+	}, actual[0].Fields())
+	require.Equal(t, map[string]string{}, actual[0].Tags())
 
 	// Test that newlines are fine
-	metrics, err = parser.Parse([]byte(validJSONNewline))
+	actual, err = parser.Parse([]byte(validJSONNewline))
 	require.NoError(t, err)
-	require.Len(t, metrics, 1)
-	require.Equal(t, "json_test", metrics[0].Name())
+	require.Len(t, actual, 1)
+	require.Equal(t, "json_test", actual[0].Name())
 	require.Equal(t, map[string]interface{}{
 		"d":   float64(7),
 		"b_d": float64(8),
-	}, metrics[0].Fields())
-	require.Equal(t, map[string]string{}, metrics[0].Tags())
+	}, actual[0].Fields())
+	require.Equal(t, map[string]string{}, actual[0].Tags())
 
 	// Test that strings without TagKeys defined are ignored
-	metrics, err = parser.Parse([]byte(validJSONTags))
+	actual, err = parser.Parse([]byte(validJSONTags))
 	require.NoError(t, err)
-	require.Len(t, metrics, 1)
-	require.Equal(t, "json_test", metrics[0].Name())
+	require.Len(t, actual, 1)
+	require.Equal(t, "json_test", actual[0].Name())
 	require.Equal(t, map[string]interface{}{
 		"a":   float64(5),
 		"b_c": float64(6),
-	}, metrics[0].Fields())
-	require.Equal(t, map[string]string{}, metrics[0].Tags())
+	}, actual[0].Fields())
+	require.Equal(t, map[string]string{}, actual[0].Tags())
 
-	// Test that whitespace only will parse as an empty list of metrics
-	metrics, err = parser.Parse([]byte("\n\t"))
+	// Test that whitespace only will parse as an empty list of actual
+	actual, err = parser.Parse([]byte("\n\t"))
 	require.NoError(t, err)
-	require.Empty(t, metrics)
+	require.Empty(t, actual)
 
-	// Test that an empty string will parse as an empty list of metrics
-	metrics, err = parser.Parse([]byte(""))
+	// Test that an empty string will parse as an empty list of actual
+	actual, err = parser.Parse([]byte(""))
 	require.NoError(t, err)
-	require.Empty(t, metrics)
+	require.Empty(t, actual)
 }
 
 func TestParseLineValidJSON(t *testing.T) {
@@ -129,34 +164,34 @@ func TestParseLineValidJSON(t *testing.T) {
 	require.NoError(t, parser.Init())
 
 	// Most basic vanilla test
-	metric, err := parser.ParseLine(validJSON)
+	actual, err := parser.ParseLine(validJSON)
 	require.NoError(t, err)
-	require.Equal(t, "json_test", metric.Name())
+	require.Equal(t, "json_test", actual.Name())
 	require.Equal(t, map[string]interface{}{
 		"a":   float64(5),
 		"b_c": float64(6),
-	}, metric.Fields())
-	require.Equal(t, map[string]string{}, metric.Tags())
+	}, actual.Fields())
+	require.Equal(t, map[string]string{}, actual.Tags())
 
 	// Test that newlines are fine
-	metric, err = parser.ParseLine(validJSONNewline)
+	actual, err = parser.ParseLine(validJSONNewline)
 	require.NoError(t, err)
-	require.Equal(t, "json_test", metric.Name())
+	require.Equal(t, "json_test", actual.Name())
 	require.Equal(t, map[string]interface{}{
 		"d":   float64(7),
 		"b_d": float64(8),
-	}, metric.Fields())
-	require.Equal(t, map[string]string{}, metric.Tags())
+	}, actual.Fields())
+	require.Equal(t, map[string]string{}, actual.Tags())
 
 	// Test that strings without TagKeys defined are ignored
-	metric, err = parser.ParseLine(validJSONTags)
+	actual, err = parser.ParseLine(validJSONTags)
 	require.NoError(t, err)
-	require.Equal(t, "json_test", metric.Name())
+	require.Equal(t, "json_test", actual.Name())
 	require.Equal(t, map[string]interface{}{
 		"a":   float64(5),
 		"b_c": float64(6),
-	}, metric.Fields())
-	require.Equal(t, map[string]string{}, metric.Tags())
+	}, actual.Fields())
+	require.Equal(t, map[string]string{}, actual.Tags())
 }
 
 func TestParseInvalidJSON(t *testing.T) {
@@ -214,15 +249,15 @@ func TestParseWithTagKeys(t *testing.T) {
 	}
 	require.NoError(t, parser.Init())
 
-	metrics, err := parser.Parse([]byte(validJSONTags))
+	actual, err := parser.Parse([]byte(validJSONTags))
 	require.NoError(t, err)
-	require.Len(t, metrics, 1)
-	require.Equal(t, "json_test", metrics[0].Name())
+	require.Len(t, actual, 1)
+	require.Equal(t, "json_test", actual[0].Name())
 	require.Equal(t, map[string]interface{}{
 		"a":   float64(5),
 		"b_c": float64(6),
-	}, metrics[0].Fields())
-	require.Equal(t, map[string]string{}, metrics[0].Tags())
+	}, actual[0].Fields())
+	require.Equal(t, map[string]string{}, actual[0].Tags())
 
 	// Test that single tag key is found and applied
 	parser = &Parser{
@@ -231,17 +266,17 @@ func TestParseWithTagKeys(t *testing.T) {
 	}
 	require.NoError(t, parser.Init())
 
-	metrics, err = parser.Parse([]byte(validJSONTags))
+	actual, err = parser.Parse([]byte(validJSONTags))
 	require.NoError(t, err)
-	require.Len(t, metrics, 1)
-	require.Equal(t, "json_test", metrics[0].Name())
+	require.Len(t, actual, 1)
+	require.Equal(t, "json_test", actual[0].Name())
 	require.Equal(t, map[string]interface{}{
 		"a":   float64(5),
 		"b_c": float64(6),
-	}, metrics[0].Fields())
+	}, actual[0].Fields())
 	require.Equal(t, map[string]string{
 		"mytag": "foobar",
-	}, metrics[0].Tags())
+	}, actual[0].Tags())
 
 	// Test that both tag keys are found and applied
 	parser = &Parser{
@@ -250,18 +285,18 @@ func TestParseWithTagKeys(t *testing.T) {
 	}
 	require.NoError(t, parser.Init())
 
-	metrics, err = parser.Parse([]byte(validJSONTags))
+	actual, err = parser.Parse([]byte(validJSONTags))
 	require.NoError(t, err)
-	require.Len(t, metrics, 1)
-	require.Equal(t, "json_test", metrics[0].Name())
+	require.Len(t, actual, 1)
+	require.Equal(t, "json_test", actual[0].Name())
 	require.Equal(t, map[string]interface{}{
 		"a":   float64(5),
 		"b_c": float64(6),
-	}, metrics[0].Fields())
+	}, actual[0].Fields())
 	require.Equal(t, map[string]string{
 		"mytag":    "foobar",
 		"othertag": "baz",
-	}, metrics[0].Tags())
+	}, actual[0].Tags())
 }
 
 func TestParseLineWithTagKeys(t *testing.T) {
@@ -272,14 +307,14 @@ func TestParseLineWithTagKeys(t *testing.T) {
 	}
 	require.NoError(t, parser.Init())
 
-	metric, err := parser.ParseLine(validJSONTags)
+	actual, err := parser.ParseLine(validJSONTags)
 	require.NoError(t, err)
-	require.Equal(t, "json_test", metric.Name())
+	require.Equal(t, "json_test", actual.Name())
 	require.Equal(t, map[string]interface{}{
 		"a":   float64(5),
 		"b_c": float64(6),
-	}, metric.Fields())
-	require.Equal(t, map[string]string{}, metric.Tags())
+	}, actual.Fields())
+	require.Equal(t, map[string]string{}, actual.Tags())
 
 	// Test that single tag key is found and applied
 	parser = &Parser{
@@ -288,16 +323,16 @@ func TestParseLineWithTagKeys(t *testing.T) {
 	}
 	require.NoError(t, parser.Init())
 
-	metric, err = parser.ParseLine(validJSONTags)
+	actual, err = parser.ParseLine(validJSONTags)
 	require.NoError(t, err)
-	require.Equal(t, "json_test", metric.Name())
+	require.Equal(t, "json_test", actual.Name())
 	require.Equal(t, map[string]interface{}{
 		"a":   float64(5),
 		"b_c": float64(6),
-	}, metric.Fields())
+	}, actual.Fields())
 	require.Equal(t, map[string]string{
 		"mytag": "foobar",
-	}, metric.Tags())
+	}, actual.Tags())
 
 	// Test that both tag keys are found and applied
 	parser = &Parser{
@@ -306,17 +341,17 @@ func TestParseLineWithTagKeys(t *testing.T) {
 	}
 	require.NoError(t, parser.Init())
 
-	metric, err = parser.ParseLine(validJSONTags)
+	actual, err = parser.ParseLine(validJSONTags)
 	require.NoError(t, err)
-	require.Equal(t, "json_test", metric.Name())
+	require.Equal(t, "json_test", actual.Name())
 	require.Equal(t, map[string]interface{}{
 		"a":   float64(5),
 		"b_c": float64(6),
-	}, metric.Fields())
+	}, actual.Fields())
 	require.Equal(t, map[string]string{
 		"mytag":    "foobar",
 		"othertag": "baz",
-	}, metric.Tags())
+	}, actual.Tags())
 }
 
 func TestParseValidJSONDefaultTags(t *testing.T) {
@@ -328,29 +363,29 @@ func TestParseValidJSONDefaultTags(t *testing.T) {
 	require.NoError(t, parser.Init())
 
 	// Most basic vanilla test
-	metrics, err := parser.Parse([]byte(validJSON))
+	actual, err := parser.Parse([]byte(validJSON))
 	require.NoError(t, err)
-	require.Len(t, metrics, 1)
-	require.Equal(t, "json_test", metrics[0].Name())
+	require.Len(t, actual, 1)
+	require.Equal(t, "json_test", actual[0].Name())
 	require.Equal(t, map[string]interface{}{
 		"a":   float64(5),
 		"b_c": float64(6),
-	}, metrics[0].Fields())
-	require.Equal(t, map[string]string{"t4g": "default"}, metrics[0].Tags())
+	}, actual[0].Fields())
+	require.Equal(t, map[string]string{"t4g": "default"}, actual[0].Tags())
 
 	// Test that tagkeys and default tags are applied
-	metrics, err = parser.Parse([]byte(validJSONTags))
+	actual, err = parser.Parse([]byte(validJSONTags))
 	require.NoError(t, err)
-	require.Len(t, metrics, 1)
-	require.Equal(t, "json_test", metrics[0].Name())
+	require.Len(t, actual, 1)
+	require.Equal(t, "json_test", actual[0].Name())
 	require.Equal(t, map[string]interface{}{
 		"a":   float64(5),
 		"b_c": float64(6),
-	}, metrics[0].Fields())
+	}, actual[0].Fields())
 	require.Equal(t, map[string]string{
 		"t4g":   "default",
 		"mytag": "foobar",
-	}, metrics[0].Tags())
+	}, actual[0].Tags())
 }
 
 // Test that default tags are overridden by tag keys
@@ -363,28 +398,28 @@ func TestParseValidJSONDefaultTagsOverride(t *testing.T) {
 	require.NoError(t, parser.Init())
 
 	// Most basic vanilla test
-	metrics, err := parser.Parse([]byte(validJSON))
+	actual, err := parser.Parse([]byte(validJSON))
 	require.NoError(t, err)
-	require.Len(t, metrics, 1)
-	require.Equal(t, "json_test", metrics[0].Name())
+	require.Len(t, actual, 1)
+	require.Equal(t, "json_test", actual[0].Name())
 	require.Equal(t, map[string]interface{}{
 		"a":   float64(5),
 		"b_c": float64(6),
-	}, metrics[0].Fields())
-	require.Equal(t, map[string]string{"mytag": "default"}, metrics[0].Tags())
+	}, actual[0].Fields())
+	require.Equal(t, map[string]string{"mytag": "default"}, actual[0].Tags())
 
 	// Test that tagkeys override default tags
-	metrics, err = parser.Parse([]byte(validJSONTags))
+	actual, err = parser.Parse([]byte(validJSONTags))
 	require.NoError(t, err)
-	require.Len(t, metrics, 1)
-	require.Equal(t, "json_test", metrics[0].Name())
+	require.Len(t, actual, 1)
+	require.Equal(t, "json_test", actual[0].Name())
 	require.Equal(t, map[string]interface{}{
 		"a":   float64(5),
 		"b_c": float64(6),
-	}, metrics[0].Fields())
+	}, actual[0].Fields())
 	require.Equal(t, map[string]string{
 		"mytag": "foobar",
-	}, metrics[0].Tags())
+	}, actual[0].Tags())
 }
 
 // Test that json arrays can be parsed
@@ -393,32 +428,32 @@ func TestParseValidJSONArray(t *testing.T) {
 	require.NoError(t, parser.Init())
 
 	// Most basic vanilla test
-	metrics, err := parser.Parse([]byte(validJSONArray))
+	actual, err := parser.Parse([]byte(validJSONArray))
 	require.NoError(t, err)
-	require.Len(t, metrics, 1)
-	require.Equal(t, "json_array_test", metrics[0].Name())
+	require.Len(t, actual, 1)
+	require.Equal(t, "json_array_test", actual[0].Name())
 	require.Equal(t, map[string]interface{}{
 		"a":   float64(5),
 		"b_c": float64(6),
-	}, metrics[0].Fields())
-	require.Equal(t, map[string]string{}, metrics[0].Tags())
+	}, actual[0].Fields())
+	require.Equal(t, map[string]string{}, actual[0].Tags())
 
 	// Basic multiple datapoints
-	metrics, err = parser.Parse([]byte(validJSONArrayMultiple))
+	actual, err = parser.Parse([]byte(validJSONArrayMultiple))
 	require.NoError(t, err)
-	require.Len(t, metrics, 2)
-	require.Equal(t, "json_array_test", metrics[0].Name())
+	require.Len(t, actual, 2)
+	require.Equal(t, "json_array_test", actual[0].Name())
 	require.Equal(t, map[string]interface{}{
 		"a":   float64(5),
 		"b_c": float64(6),
-	}, metrics[0].Fields())
-	require.Equal(t, map[string]string{}, metrics[1].Tags())
-	require.Equal(t, "json_array_test", metrics[1].Name())
+	}, actual[0].Fields())
+	require.Equal(t, map[string]string{}, actual[1].Tags())
+	require.Equal(t, "json_array_test", actual[1].Name())
 	require.Equal(t, map[string]interface{}{
 		"a":   float64(7),
 		"b_c": float64(8),
-	}, metrics[1].Fields())
-	require.Equal(t, map[string]string{}, metrics[1].Tags())
+	}, actual[1].Fields())
+	require.Equal(t, map[string]string{}, actual[1].Tags())
 }
 
 func TestParseArrayWithTagKeys(t *testing.T) {
@@ -429,22 +464,22 @@ func TestParseArrayWithTagKeys(t *testing.T) {
 	}
 	require.NoError(t, parser.Init())
 
-	metrics, err := parser.Parse([]byte(validJSONArrayTags))
+	actual, err := parser.Parse([]byte(validJSONArrayTags))
 	require.NoError(t, err)
-	require.Len(t, metrics, 2)
-	require.Equal(t, "json_array_test", metrics[0].Name())
+	require.Len(t, actual, 2)
+	require.Equal(t, "json_array_test", actual[0].Name())
 	require.Equal(t, map[string]interface{}{
 		"a":   float64(5),
 		"b_c": float64(6),
-	}, metrics[0].Fields())
-	require.Equal(t, map[string]string{}, metrics[0].Tags())
+	}, actual[0].Fields())
+	require.Equal(t, map[string]string{}, actual[0].Tags())
 
-	require.Equal(t, "json_array_test", metrics[1].Name())
+	require.Equal(t, "json_array_test", actual[1].Name())
 	require.Equal(t, map[string]interface{}{
 		"a":   float64(7),
 		"b_c": float64(8),
-	}, metrics[1].Fields())
-	require.Equal(t, map[string]string{}, metrics[1].Tags())
+	}, actual[1].Fields())
+	require.Equal(t, map[string]string{}, actual[1].Tags())
 
 	// Test that single tag key is found and applied
 	parser = &Parser{
@@ -453,26 +488,26 @@ func TestParseArrayWithTagKeys(t *testing.T) {
 	}
 	require.NoError(t, parser.Init())
 
-	metrics, err = parser.Parse([]byte(validJSONArrayTags))
+	actual, err = parser.Parse([]byte(validJSONArrayTags))
 	require.NoError(t, err)
-	require.Len(t, metrics, 2)
-	require.Equal(t, "json_array_test", metrics[0].Name())
+	require.Len(t, actual, 2)
+	require.Equal(t, "json_array_test", actual[0].Name())
 	require.Equal(t, map[string]interface{}{
 		"a":   float64(5),
 		"b_c": float64(6),
-	}, metrics[0].Fields())
+	}, actual[0].Fields())
 	require.Equal(t, map[string]string{
 		"mytag": "foo",
-	}, metrics[0].Tags())
+	}, actual[0].Tags())
 
-	require.Equal(t, "json_array_test", metrics[1].Name())
+	require.Equal(t, "json_array_test", actual[1].Name())
 	require.Equal(t, map[string]interface{}{
 		"a":   float64(7),
 		"b_c": float64(8),
-	}, metrics[1].Fields())
+	}, actual[1].Fields())
 	require.Equal(t, map[string]string{
 		"mytag": "bar",
-	}, metrics[1].Tags())
+	}, actual[1].Tags())
 
 	// Test that both tag keys are found and applied
 	parser = &Parser{
@@ -481,28 +516,28 @@ func TestParseArrayWithTagKeys(t *testing.T) {
 	}
 	require.NoError(t, parser.Init())
 
-	metrics, err = parser.Parse([]byte(validJSONArrayTags))
+	actual, err = parser.Parse([]byte(validJSONArrayTags))
 	require.NoError(t, err)
-	require.Len(t, metrics, 2)
-	require.Equal(t, "json_array_test", metrics[0].Name())
+	require.Len(t, actual, 2)
+	require.Equal(t, "json_array_test", actual[0].Name())
 	require.Equal(t, map[string]interface{}{
 		"a":   float64(5),
 		"b_c": float64(6),
-	}, metrics[0].Fields())
+	}, actual[0].Fields())
 	require.Equal(t, map[string]string{
 		"mytag":    "foo",
 		"othertag": "baz",
-	}, metrics[0].Tags())
+	}, actual[0].Tags())
 
-	require.Equal(t, "json_array_test", metrics[1].Name())
+	require.Equal(t, "json_array_test", actual[1].Name())
 	require.Equal(t, map[string]interface{}{
 		"a":   float64(7),
 		"b_c": float64(8),
-	}, metrics[1].Fields())
+	}, actual[1].Fields())
 	require.Equal(t, map[string]string{
 		"mytag":    "bar",
 		"othertag": "baz",
-	}, metrics[1].Tags())
+	}, actual[1].Tags())
 }
 
 var jsonBOM = []byte("\xef\xbb\xbf[{\"value\":17}]")
@@ -542,10 +577,10 @@ func TestJSONParseNestedArray(t *testing.T) {
 	}
 	require.NoError(t, parser.Init())
 
-	metrics, err := parser.Parse([]byte(testString))
-	require.Len(t, metrics, 1)
+	actual, err := parser.Parse([]byte(testString))
+	require.Len(t, actual, 1)
 	require.NoError(t, err)
-	require.Equal(t, 3, len(metrics[0].Tags()))
+	require.Equal(t, 3, len(actual[0].Tags()))
 }
 
 func TestJSONQueryErrorOnArray(t *testing.T) {
@@ -606,9 +641,9 @@ func TestArrayOfObjects(t *testing.T) {
 	}
 	require.NoError(t, parser.Init())
 
-	metrics, err := parser.Parse([]byte(testString))
+	actual, err := parser.Parse([]byte(testString))
 	require.NoError(t, err)
-	require.Equal(t, 3, len(metrics))
+	require.Equal(t, 3, len(actual))
 }
 
 func TestUseCaseJSONQuery(t *testing.T) {
@@ -634,10 +669,10 @@ func TestUseCaseJSONQuery(t *testing.T) {
 	}
 	require.NoError(t, parser.Init())
 
-	metrics, err := parser.Parse([]byte(testString))
+	actual, err := parser.Parse([]byte(testString))
 	require.NoError(t, err)
-	require.Equal(t, 3, len(metrics))
-	require.Equal(t, metrics[0].Fields()["last"], "Murphy")
+	require.Equal(t, 3, len(actual))
+	require.Equal(t, actual[0].Fields()["last"], "Murphy")
 }
 
 func TestTimeParser(t *testing.T) {
@@ -669,10 +704,10 @@ func TestTimeParser(t *testing.T) {
 	}
 	require.NoError(t, parser.Init())
 
-	metrics, err := parser.Parse([]byte(testString))
+	actual, err := parser.Parse([]byte(testString))
 	require.NoError(t, err)
-	require.Equal(t, 2, len(metrics))
-	require.NotEqual(t, metrics[0].Time(), metrics[1].Time())
+	require.Equal(t, 2, len(actual))
+	require.NotEqual(t, actual[0].Time(), actual[1].Time())
 }
 
 func TestTimeParserWithTimezone(t *testing.T) {
@@ -688,10 +723,10 @@ func TestTimeParserWithTimezone(t *testing.T) {
 	}
 	require.NoError(t, parser.Init())
 
-	metrics, err := parser.Parse([]byte(testString))
+	actual, err := parser.Parse([]byte(testString))
 	require.NoError(t, err)
-	require.Equal(t, 1, len(metrics))
-	require.EqualValues(t, int64(1136405040000000000), metrics[0].Time().UnixNano())
+	require.Equal(t, 1, len(actual))
+	require.EqualValues(t, int64(1136405040000000000), actual[0].Time().UnixNano())
 }
 
 func TestUnixTimeParser(t *testing.T) {
@@ -723,10 +758,10 @@ func TestUnixTimeParser(t *testing.T) {
 	}
 	require.NoError(t, parser.Init())
 
-	metrics, err := parser.Parse([]byte(testString))
+	actual, err := parser.Parse([]byte(testString))
 	require.NoError(t, err)
-	require.Equal(t, 2, len(metrics))
-	require.NotEqual(t, metrics[0].Time(), metrics[1].Time())
+	require.Equal(t, 2, len(actual))
+	require.NotEqual(t, actual[0].Time(), actual[1].Time())
 }
 
 func TestUnixMsTimeParser(t *testing.T) {
@@ -758,10 +793,10 @@ func TestUnixMsTimeParser(t *testing.T) {
 	}
 	require.NoError(t, parser.Init())
 
-	metrics, err := parser.Parse([]byte(testString))
+	actual, err := parser.Parse([]byte(testString))
 	require.NoError(t, err)
-	require.Equal(t, 2, len(metrics))
-	require.NotEqual(t, metrics[0].Time(), metrics[1].Time())
+	require.Equal(t, 2, len(actual))
+	require.NotEqual(t, actual[0].Time(), actual[1].Time())
 }
 
 func TestTimeErrors(t *testing.T) {
@@ -782,9 +817,9 @@ func TestTimeErrors(t *testing.T) {
 	}
 	require.NoError(t, parser.Init())
 
-	metrics, err := parser.Parse([]byte(testString))
+	actual, err := parser.Parse([]byte(testString))
 	require.Error(t, err)
-	require.Empty(t, metrics)
+	require.Empty(t, actual)
 
 	testString2 := `{
 		"a": 5,
@@ -802,9 +837,9 @@ func TestTimeErrors(t *testing.T) {
 	}
 	require.NoError(t, parser.Init())
 
-	metrics, err = parser.Parse([]byte(testString2))
+	actual, err = parser.Parse([]byte(testString2))
 	require.Error(t, err)
-	require.Empty(t, metrics)
+	require.Empty(t, actual)
 	require.Equal(t, fmt.Errorf("JSON time key could not be found"), err)
 }
 
@@ -812,10 +847,10 @@ func TestShareTimestamp(t *testing.T) {
 	parser := &Parser{MetricName: "json_test"}
 	require.NoError(t, parser.Init())
 
-	metrics, err := parser.Parse([]byte(validJSONArrayMultiple))
+	actual, err := parser.Parse([]byte(validJSONArrayMultiple))
 	require.NoError(t, err)
-	require.Equal(t, 2, len(metrics))
-	require.Equal(t, metrics[0].Time(), metrics[1].Time())
+	require.Equal(t, 2, len(actual))
+	require.Equal(t, actual[0].Time(), actual[1].Time())
 }
 
 func TestNameKey(t *testing.T) {
@@ -832,9 +867,9 @@ func TestNameKey(t *testing.T) {
 	parser := &Parser{NameKey: "b_c"}
 	require.NoError(t, parser.Init())
 
-	metrics, err := parser.Parse([]byte(testString))
+	actual, err := parser.Parse([]byte(testString))
 	require.NoError(t, err)
-	require.Equal(t, "this is my name", metrics[0].Name())
+	require.Equal(t, "this is my name", actual[0].Name())
 }
 
 func TestParseArrayWithWrongType(t *testing.T) {
@@ -1359,6 +1394,85 @@ func TestParseArrayWithWildcardTagKeys(t *testing.T) {
 	}
 }
 
+func TestBenchmarkData(t *testing.T) {
+	// Setup the plugin
+	plugin := &Parser{
+		MetricName: "benchmark",
+		TagKeys:    []string{"tags_*"},
+	}
+	require.NoError(t, plugin.Init())
+
+	expected := []telegraf.Metric{
+		metric.New(
+			"benchmark",
+			map[string]string{
+				"tags_flagname": "F5",
+				"tags_host":     "1cbbb3796fc2",
+				"tags_key":      "12345",
+				"tags_platform": "Java",
+				"tags_sdkver":   "4.9.1",
+				"tags_value":    "false",
+			},
+			map[string]interface{}{
+				"fields_count_sum": float64(5),
+				"timestamp":        float64(1653643420),
+			},
+			time.Unix(0, 0),
+		),
+		metric.New(
+			"benchmark",
+			map[string]string{
+				"tags_flagname": "E42",
+				"tags_host":     "klaus",
+				"tags_key":      "67890",
+				"tags_platform": "Golang",
+				"tags_sdkver":   "1.18.3",
+				"tags_value":    "true",
+			},
+			map[string]interface{}{
+				"fields_count_sum": float64(42),
+				"timestamp":        float64(1653646789),
+			},
+			time.Unix(0, 0),
+		),
+	}
+
+	// Do the parsing
+	actual, err := plugin.Parse([]byte(benchmarkData))
+	require.NoError(t, err)
+	testutil.RequireMetricsEqual(t, expected, actual, testutil.IgnoreTime())
+}
+
+func BenchmarkParsingSequential(b *testing.B) {
+	// Configure the plugin
+	plugin := &Parser{
+		MetricName: "benchmark",
+		TagKeys:    []string{"tags_*"},
+	}
+	require.NoError(b, plugin.Init())
+
+	// Do the benchmarking
+	for n := 0; n < b.N; n++ {
+		_, _ = plugin.Parse([]byte(benchmarkData))
+	}
+}
+
+func BenchmarkParsingParallel(b *testing.B) {
+	// Configure the plugin
+	plugin := &Parser{
+		MetricName: "benchmark",
+		TagKeys:    []string{"tags_*"},
+	}
+	require.NoError(b, plugin.Init())
+
+	// Do the benchmarking
+	b.RunParallel(func(p *testing.PB) {
+		for p.Next() {
+			_, _ = plugin.Parse([]byte(benchmarkData))
+		}
+	})
+}
+
 func FuzzParserJSON(f *testing.F) {
 	for _, value := range fuzz.JSONDictionary {
 		f.Add([]byte(value))
diff --git a/plugins/parsers/json_v2/parser_test.go b/plugins/parsers/json_v2/parser_test.go
index b0749d992..498afd4e5 100644
--- a/plugins/parsers/json_v2/parser_test.go
+++ b/plugins/parsers/json_v2/parser_test.go
@@ -15,6 +15,7 @@ import (
 	"github.com/influxdata/telegraf/plugins/inputs"
 	"github.com/influxdata/telegraf/plugins/inputs/file"
 	"github.com/influxdata/telegraf/plugins/parsers/influx"
+	"github.com/influxdata/telegraf/plugins/parsers/json_v2"
 	"github.com/influxdata/telegraf/testutil"
 )
 
@@ -34,6 +35,10 @@ func TestMultipleConfigs(t *testing.T) {
 	})
 
 	for _, f := range folders {
+		// Only use directories as those contain test-cases
+		if !f.IsDir() {
+			continue
+		}
 		testdataPath := filepath.Join("testdata", f.Name())
 		configFilename := filepath.Join(testdataPath, "telegraf.conf")
 		expectedFilename := filepath.Join(testdataPath, "expected.out")
@@ -94,3 +99,63 @@ func TestMultipleConfigs(t *testing.T) {
 		})
 	}
 }
+
+func BenchmarkParsingSequential(b *testing.B) {
+	inputFilename := filepath.Join("testdata", "benchmark", "input.json")
+
+	// Configure the plugin
+	plugin := &json_v2.Parser{
+		Configs: []json_v2.Config{
+			{
+				MeasurementName: "benchmark",
+				JSONObjects: []json_v2.Object{
+					{
+						Path:               "metrics",
+						DisablePrependKeys: true,
+					},
+				},
+			},
+		},
+	}
+	require.NoError(b, plugin.Init())
+
+	// Read the input data
+	input, err := os.ReadFile(inputFilename)
+	require.NoError(b, err)
+
+	// Do the benchmarking
+	for n := 0; n < b.N; n++ {
+		_, _ = plugin.Parse(input)
+	}
+}
+
+func BenchmarkParsingParallel(b *testing.B) {
+	inputFilename := filepath.Join("testdata", "benchmark", "input.json")
+
+	// Configure the plugin
+	plugin := &json_v2.Parser{
+		Configs: []json_v2.Config{
+			{
+				MeasurementName: "benchmark",
+				JSONObjects: []json_v2.Object{
+					{
+						Path:               "metrics",
+						DisablePrependKeys: true,
+					},
+				},
+			},
+		},
+	}
+	require.NoError(b, plugin.Init())
+
+	// Read the input data
+	input, err := os.ReadFile(inputFilename)
+	require.NoError(b, err)
+
+	// Do the benchmarking
+	b.RunParallel(func(p *testing.PB) {
+		for p.Next() {
+			_, _ = plugin.Parse(input)
+		}
+	})
+}
diff --git a/plugins/parsers/json_v2/testdata/benchmark/benchmark.json b/plugins/parsers/json_v2/testdata/benchmark/benchmark.json
new file mode 100644
index 000000000..4f17cb096
--- /dev/null
+++ b/plugins/parsers/json_v2/testdata/benchmark/benchmark.json
@@ -0,0 +1,34 @@
+{
+  "metrics": [
+    {
+      "name": "impression",
+      "timestamp": 1653643420,
+      "fields": {
+        "count_sum": 5
+      },
+      "tags": {
+        "key": "12345",
+        "flagname": "F5",
+        "host": "1cbbb3796fc2",
+        "platform": "Java",
+        "sdkver": "4.9.1",
+        "value": "false"
+      }
+    },
+    {
+      "name": "expression",
+      "timestamp": 1653646789,
+      "fields": {
+        "count_sum": 42
+      },
+      "tags": {
+        "key": "67890",
+        "flagname": "E42",
+        "host": "klaus",
+        "platform": "Golang",
+        "sdkver": "1.18.3",
+        "value": "true"
+      }
+    }
+  ]
+}
\ No newline at end of file
diff --git a/plugins/parsers/json_v2/testdata/benchmark/expected.out b/plugins/parsers/json_v2/testdata/benchmark/expected.out
new file mode 100644
index 000000000..3bd3868db
--- /dev/null
+++ b/plugins/parsers/json_v2/testdata/benchmark/expected.out
@@ -0,0 +1,2 @@
+benchmark count_sum=5,flagname="F5",host="1cbbb3796fc2",key="12345",name="impression",platform="Java",sdkver="4.9.1",timestamp=1653643420,value="false" 1697730835574029794
+benchmark count_sum=42,flagname="E42",host="klaus",key="67890",name="expression",platform="Golang",sdkver="1.18.3",timestamp=1653646789,value="true" 1697730835574029794
diff --git a/plugins/parsers/json_v2/testdata/benchmark/input.json b/plugins/parsers/json_v2/testdata/benchmark/input.json
new file mode 100644
index 000000000..915ff465c
--- /dev/null
+++ b/plugins/parsers/json_v2/testdata/benchmark/input.json
@@ -0,0 +1,34 @@
+{
+    "metrics": [
+      {
+        "name": "impression",
+        "timestamp": 1653643420,
+        "fields": {
+          "count_sum": 5
+        },
+        "tags": {
+          "key": "12345",
+          "flagname": "F5",
+          "host": "1cbbb3796fc2",
+          "platform": "Java",
+          "sdkver": "4.9.1",
+          "value": "false"
+        }
+      },
+      {
+        "name": "expression",
+        "timestamp": 1653646789,
+        "fields": {
+          "count_sum": 42
+        },
+        "tags": {
+          "key": "67890",
+          "flagname": "E42",
+          "host": "klaus",
+          "platform": "Golang",
+          "sdkver": "1.18.3",
+          "value": "true"
+        }
+      }
+    ]
+  }
\ No newline at end of file
diff --git a/plugins/parsers/json_v2/testdata/benchmark/telegraf.conf b/plugins/parsers/json_v2/testdata/benchmark/telegraf.conf
new file mode 100644
index 000000000..6c498fbbb
--- /dev/null
+++ b/plugins/parsers/json_v2/testdata/benchmark/telegraf.conf
@@ -0,0 +1,9 @@
+[[inputs.file]]
+    files = ["./testdata/benchmark/input.json"]
+    data_format = "json_v2"
+
+  [[inputs.file.json_v2]]
+    measurement_name = "benchmark"
+    [[inputs.file.json_v2.object]]
+      path = 'metrics'
+      disable_prepend_keys = true