Add video codec stats to nvidia-smi (#7646)

plugins/inputs/nvidia_smi/README.md

@@ -38,6 +38,8 @@ You'll need to escape the `\` within the `telegraf.conf` like this: `C:\\Program
     - `temperature_gpu` (integer, degrees C)
     - `utilization_gpu` (integer, percentage)
     - `utilization_memory` (integer, percentage)
+    - `utilization_encoder` (integer, percentage)
+    - `utilization_decoder` (integer, percentage)
     - `pcie_link_gen_current` (integer)
     - `pcie_link_width_current` (integer)
     - `encoder_stats_session_count` (integer)

plugins/inputs/nvidia_smi/nvidia_smi.go

@@ -116,11 +116,16 @@ func (s *SMI) genTagsFields() []metric {
 		setIfUsed("int", fields, "temperature_gpu", gpu.Temp.GPUTemp)
 		setIfUsed("int", fields, "utilization_gpu", gpu.Utilization.GPU)
 		setIfUsed("int", fields, "utilization_memory", gpu.Utilization.Memory)
+		setIfUsed("int", fields, "utilization_encoder", gpu.Utilization.Encoder)
+		setIfUsed("int", fields, "utilization_decoder", gpu.Utilization.Decoder)
 		setIfUsed("int", fields, "pcie_link_gen_current", gpu.PCI.LinkInfo.PCIEGen.CurrentLinkGen)
 		setIfUsed("int", fields, "pcie_link_width_current", gpu.PCI.LinkInfo.LinkWidth.CurrentLinkWidth)
 		setIfUsed("int", fields, "encoder_stats_session_count", gpu.Encoder.SessionCount)
 		setIfUsed("int", fields, "encoder_stats_average_fps", gpu.Encoder.AverageFPS)
 		setIfUsed("int", fields, "encoder_stats_average_latency", gpu.Encoder.AverageLatency)
+		setIfUsed("int", fields, "fbc_stats_session_count", gpu.FBC.SessionCount)
+		setIfUsed("int", fields, "fbc_stats_average_fps", gpu.FBC.AverageFPS)
+		setIfUsed("int", fields, "fbc_stats_average_latency", gpu.FBC.AverageLatency)
 		setIfUsed("int", fields, "clocks_current_graphics", gpu.Clocks.Graphics)
 		setIfUsed("int", fields, "clocks_current_sm", gpu.Clocks.SM)
 		setIfUsed("int", fields, "clocks_current_memory", gpu.Clocks.Memory)
@@ -185,6 +190,7 @@ type GPU []struct {
 	Power       PowerReadings    `xml:"power_readings"`
 	PCI         PCI              `xml:"pci"`
 	Encoder     EncoderStats     `xml:"encoder_stats"`
+	FBC         FBCStats         `xml:"fbc_stats"`
 	Clocks      ClockStats       `xml:"clocks"`
 }
 
@@ -202,8 +208,10 @@ type TempStats struct {
 
 // UtilizationStats defines the structure of the utilization portion of the smi output.
 type UtilizationStats struct {
-	GPU    string `xml:"gpu_util"`    // int
+	GPU     string `xml:"gpu_util"`     // int
-	Memory string `xml:"memory_util"` // int
+	Memory  string `xml:"memory_util"`  // int
+	Encoder string `xml:"encoder_util"` // int
+	Decoder string `xml:"decoder_util"` // int
 }
 
 // PowerReadings defines the structure of the power_readings portion of the smi output.
@@ -230,6 +238,13 @@ type EncoderStats struct {
 	AverageLatency string `xml:"average_latency"` // int
 }
 
+// FBCStats defines the structure of the fbc_stats portion of the smi output.
+type FBCStats struct {
+	SessionCount   string `xml:"session_count"`   // int
+	AverageFPS     string `xml:"average_fps"`     // int
+	AverageLatency string `xml:"average_latency"` // int
+}
+
 // ClockStats defines the structure of the clocks portion of the smi output.
 type ClockStats struct {
 	Graphics string `xml:"graphics_clock"` // int

plugins/inputs/nvidia_smi/nvidia_smi_test.go

@@ -72,6 +72,9 @@ func TestGatherValidXML(t *testing.T) {
 						"encoder_stats_average_fps":     0,
 						"encoder_stats_average_latency": 0,
 						"encoder_stats_session_count":   0,
+						"fbc_stats_average_fps":         0,
+						"fbc_stats_average_latency":     0,
+						"fbc_stats_session_count":       0,
 						"fan_speed":                     0,
 						"memory_free":                   5912,
 						"memory_total":                  5912,
@@ -82,6 +85,8 @@ func TestGatherValidXML(t *testing.T) {
 						"temperature_gpu":               40,
 						"utilization_gpu":               0,
 						"utilization_memory":            1,
+						"utilization_encoder":           0,
+						"utilization_decoder":           0,
 					},
 					time.Unix(0, 0)),
 			},
@@ -107,6 +112,9 @@ func TestGatherValidXML(t *testing.T) {
 						"encoder_stats_average_fps":     0,
 						"encoder_stats_average_latency": 0,
 						"encoder_stats_session_count":   0,
+						"fbc_stats_average_fps":         0,
+						"fbc_stats_average_latency":     0,
+						"fbc_stats_session_count":       0,
 						"fan_speed":                     34,
 						"memory_free":                   1998,
 						"memory_total":                  1998,
@@ -116,6 +124,8 @@ func TestGatherValidXML(t *testing.T) {
 						"temperature_gpu":               33,
 						"utilization_gpu":               0,
 						"utilization_memory":            3,
+						"utilization_encoder":           0,
+						"utilization_decoder":           0,
 					},
 					time.Unix(0, 0)),
 			},