chore(parsers.xpath): Add benchmark for CBOR format (#14314)

plugins/parsers/xpath/parser_test.go

@@ -1781,3 +1781,35 @@ func BenchmarkParsingMsgPack(b *testing.B) {
 		_, _ = plugin.Parse(benchmarkDataMsgPack[n%2])
 	}
 }
+
+func BenchmarkParsingCBOR(b *testing.B) {
+	plugin := &Parser{
+		DefaultMetricName: "benchmark",
+		Format:            "xpath_cbor",
+		NativeTypes:       true,
+		Configs: []Config{
+			{
+				Selection:    "//data",
+				Timestamp:    "timestamp",
+				TimestampFmt: "unix_ns",
+				Tags: map[string]string{
+					"source":        "source",
+					"tags_sdkver":   "tags_sdkver",
+					"tags_platform": "tags_platform",
+				},
+				Fields: map[string]string{
+					"value": "value",
+				},
+			},
+		},
+		Log: testutil.Logger{Name: "parsers.xpath", Quiet: true},
+	}
+	require.NoError(b, plugin.Init())
+
+	benchmarkData, err := os.ReadFile(filepath.Join("testcases", "cbor_benchmark", "message.bin"))
+	require.NoError(b, err)
+
+	for n := 0; n < b.N; n++ {
+		_, _ = plugin.Parse(benchmarkData)
+	}
+}

plugins/parsers/xpath/testcases/cbor_benchmark/expected.out

@@ -0,0 +1,2 @@
+benchmark,source=myhost,tags_platform=python,tags_sdkver=3.11.5 value=5.0 1653643421000000000
+benchmark,source=myhost,tags_platform=python,tags_sdkver=3.11.4 value=4.0 1653643421000000000

plugins/parsers/xpath/testcases/cbor_benchmark/telegraf.conf

@@ -0,0 +1,20 @@
+[[inputs.file]]
+  files = ["./testcases/cbor_benchmark/message.bin"]
+  data_format = "xpath_cbor"
+
+  xpath_native_types = true
+
+  [[inputs.file.xpath]]
+    metric_name = "'benchmark'"
+    metric_selection = "//data"
+
+    timestamp = "timestamp"
+    timestamp_format = "unix_ns"
+
+    [inputs.file.xpath.tags]
+      source = "source"
+      tags_sdkver = "tags_sdkver"
+      tags_platform = "tags_platform"
+
+    [inputs.file.xpath.fields]
+      value = "value"