chore: add Benchmark_procTreeExitProcessor

For both Tracee and Controller.

-

Tracee

Running tool: /home/gg/.goenv/versions/1.22.4/bin/go test -benchmem
-run=^$ -tags ebpf -bench ^Benchmark_procTreeExitProcessor$
github.com/aquasecurity/tracee/pkg/ebpf -benchtime=100000000x

goos: linux
goarch: amd64
pkg: github.com/aquasecurity/tracee/pkg/ebpf
cpu: AMD Ryzen 9 7950X 16-Core Processor
Benchmark_procTreeExitProcessor-32  100000000  159.9 ns/op  48 B/op  2 allocs/op
PASS
ok  github.com/aquasecurity/tracee/pkg/ebpf  16.001s

---

Controller

Running tool: /home/gg/.goenv/versions/1.22.4/bin/go test -benchmem
-run=^$ -tags ebpf -bench ^Benchmark_procTreeExitProcessor$
github.com/aquasecurity/tracee/pkg/ebpf/controlplane -benchtime=100000000x

goos: linux
goarch: amd64
pkg: github.com/aquasecurity/tracee/pkg/ebpf/controlplane
cpu: AMD Ryzen 9 7950X 16-Core Processor
Benchmark_procTreeExitProcessor-32  100000000 335.5 ns/op  240 B/op  4 allocs/op
PASS
ok  github.com/aquasecurity/tracee/pkg/ebpf/controlplane  33.558s

pkg/ebpf/controlplane/processes_bench_test.go

@@ -81,3 +81,29 @@ func Benchmark_procTreeExecProcessor(b *testing.B) {
 		_ = ctrl.procTreeExecProcessor(args)
 	}
 }
+
+func Benchmark_procTreeExitProcessor(b *testing.B) {
+	ctrl := &Controller{}
+	ctrl.processTree, _ = proctree.NewProcessTree(
+		context.Background(),
+		proctree.ProcTreeConfig{
+			Source:           proctree.SourceBoth,
+			ProcessCacheSize: proctree.DefaultProcessCacheSize,
+			ThreadCacheSize:  proctree.DefaultThreadCacheSize,
+		},
+	)
+
+	args := []trace.Argument{
+		{ArgMeta: trace.ArgMeta{Name: "timestamp"}, Value: uint64(1)},
+		{ArgMeta: trace.ArgMeta{Name: "task_hash"}, Value: uint32(1)},
+		{ArgMeta: trace.ArgMeta{Name: "parent_hash"}, Value: uint32(1)},
+		{ArgMeta: trace.ArgMeta{Name: "leader_hash"}, Value: uint32(1)},
+		{ArgMeta: trace.ArgMeta{Name: "exit_code"}, Value: int64(1)},
+		{ArgMeta: trace.ArgMeta{Name: "process_group_exit"}, Value: true},
+	}
+
+	b.ResetTimer()
+	for i := 0; i < b.N; i++ {
+		_ = ctrl.procTreeExitProcessor(args)
+	}
+}

pkg/ebpf/processor_proctree_bench_test.go

@@ -80,3 +80,27 @@ func Benchmark_procTreeExecProcessor(b *testing.B) {
 		_ = t.procTreeExecProcessor(event)
 	}
 }
+
+func Benchmark_procTreeExitProcessor(b *testing.B) {
+	t := &Tracee{}
+	t.processTree, _ = proctree.NewProcessTree(
+		context.Background(),
+		proctree.ProcTreeConfig{
+			Source:           proctree.SourceBoth,
+			ProcessCacheSize: proctree.DefaultProcessCacheSize,
+			ThreadCacheSize:  proctree.DefaultThreadCacheSize,
+		},
+	)
+
+	event := &trace.Event{
+		Args: []trace.Argument{
+			{ArgMeta: trace.ArgMeta{Name: "exit_code"}, Value: int64(1)},
+			{ArgMeta: trace.ArgMeta{Name: "process_group_exit"}, Value: true},
+		},
+	}
+
+	b.ResetTimer()
+	for i := 0; i < b.N; i++ {
+		_ = t.procTreeExitProcessor(event)
+	}
+}