P3 A1+M5: agent memory tuning profile and XUI_PPROF gate on both agent entries

cmd/xui-agent/main.go

@@ -3,7 +3,7 @@
 // panel binary under the "agent" subcommand, shipping the whole web
 // panel and the embedded frontend to every node. This entry links only
 // the agent's own dependency closure (internal/agent plus config,
-// logger, selfupdate, xray-api types and two util leaves), so the node
+// logger, selfupdate, xray-api types and a few util leaves), so the node
 // artifact is a fraction of the panel binary while remaining a drop-in
 // replacement for it:
 //
@@ -25,6 +25,8 @@ import (
 	"flag"
 	"fmt"
 	"log"
+	"net/http"
+	_ "net/http/pprof"
 	"os"
 	"os/signal"
 	"path/filepath"
@@ -33,6 +35,7 @@ import (
 	"github.com/mhsanaei/3x-ui/v3/internal/agent"
 	"github.com/mhsanaei/3x-ui/v3/internal/config"
 	"github.com/mhsanaei/3x-ui/v3/internal/logger"
+	"github.com/mhsanaei/3x-ui/v3/internal/util/sys"
 
 	"github.com/op/go-logging"
 )
@@ -96,6 +99,23 @@ func runAgent(args []string) {
 	logger.InitLogger(logging.INFO)
 	log.Printf("Starting 3x-ui agent (node: %s)", cfg.NodeName)
 
+	// Agent memory profile (ITEM-P3 A1/M5): the same runtime tuning
+	// family as the panel, with the agent's tighter budget, plus the
+	// periodic release the panel runs through its job scheduler (the
+	// agent has no scheduler), plus the panel's XUI_PPROF gate.
+	for _, line := range sys.ApplyAgentMemoryTuning() {
+		log.Println(line)
+	}
+	sys.StartPeriodicMemoryRelease()
+	if os.Getenv("XUI_PPROF") == "true" {
+		go func() {
+			log.Println("pprof profiling server listening on 127.0.0.1:6060")
+			if err := http.ListenAndServe("127.0.0.1:6060", nil); err != nil {
+				log.Printf("pprof server stopped: %v", err)
+			}
+		}()
+	}
+
 	ag := agent.New(cfg)
 
 	// Handle shutdown signals