more metrics added

llmproxymetrics.go

@@ -91,6 +91,7 @@ func createProxy(target *url.URL) func(http.ResponseWriter, *http.Request) {
 		proxy.Director = director
 		if r.URL.Path == "/api/generate" || r.URL.Path == "/api/chat" {
 			proxy.ModifyResponse = modifyResponse
+			concurrent_requests.Inc()
 		}
 
 		proxy.ServeHTTP(w, r)
@@ -114,12 +115,15 @@ func handleJsonLine(line []byte, wasstreamed int) {
 		opsProcessed.Inc()
 		tokens_out.Add(jsonData["eval_count"].(float64))
 		tokens_in.Add(jsonData["prompt_eval_count"].(float64))
+		prompt_length.Observe(jsonData["prompt_eval_count"].(float64))
+		eval_length.Observe(jsonData["eval_count"].(float64))
 		eval_time.Observe(duration)
 		if wasstreamed == 1 {
 			streamed.Inc()
 		} else if wasstreamed == 0 {
 			notStreamed.Inc()
 		}
+		concurrent_requests.Dec()
 	}
 }
 
@@ -146,8 +150,22 @@ var tokens_in = promauto.NewCounter(prometheus.CounterOpts{
 })
 var eval_time = promauto.NewHistogram(prometheus.HistogramOpts{
 	Name:    "llmproxymetrics_eval_time",
-	Help:    "Tokens generated.",
+	Help:    "Seconds spent evaluating the response.",
-	Buckets: prometheus.LinearBuckets(0, 2.5, 20),
+	Buckets: prometheus.LinearBuckets(5, 5, 23),
+})
+var prompt_length = promauto.NewHistogram(prometheus.HistogramOpts{
+	Name:    "llmproxymetrics_prompt_length",
+	Help:    "Prompt length",
+	Buckets: prometheus.ExponentialBucketsRange(100, 32000, 20),
+})
+var eval_length = promauto.NewHistogram(prometheus.HistogramOpts{
+	Name:    "llmproxymetrics_eval_length",
+	Help:    "Eval length",
+	Buckets: prometheus.ExponentialBucketsRange(100, 32000, 20),
+})
+var concurrent_requests = promauto.NewGauge(prometheus.GaugeOpts{
+	Name: "llmproxymetrics_concurrent_requests",
+	Help: "Concurrent requests",
 })
 
 func main() {