diff --git a/context.go b/context.go
index a1fa3657..901a8456 100644
--- a/context.go
+++ b/context.go
@@ -176,6 +176,12 @@ func NewContext(mode Mode) *Context {
 	return ctx
 }
 
+func (ctx *Context) UnsafeRelease() {
+	ctx.pkgs = nil
+	ctx.Loader = nil
+	ctx.override = nil
+}
+
 func (ctx *Context) IsEvalMode() bool {
 	return ctx.evalMode
 }
@@ -424,6 +430,14 @@ func (ctx *Context) parseGoFiles(dir string, filenames []string) ([]*ast.File, e
 	return files, nil
 }
 
+func (ctx *Context) LoadInterp(filename string, src interface{}) (*Interp, error) {
+	pkg, err := ctx.LoadFile(filename, src)
+	if err != nil {
+		return nil, err
+	}
+	return ctx.NewInterp(pkg)
+}
+
 func (ctx *Context) LoadFile(filename string, src interface{}) (*ssa.Package, error) {
 	file, err := ctx.ParseFile(filename, src)
 	if err != nil {
@@ -504,6 +518,7 @@ func (ctx *Context) RunPkg(mainPkg *ssa.Package, input string, args []string) (e
 	if err != nil {
 		return 2, err
 	}
+	defer interp.UnsafeReleaseIcall()
 	return ctx.RunInterp(interp, input, args)
 }
 
diff --git a/go.mod b/go.mod
index ddb33705..65b48d57 100644
--- a/go.mod
+++ b/go.mod
@@ -5,7 +5,7 @@ go 1.14
 require (
 	github.com/goplus/gop v1.1.4-0.20230225130145-e37691ce5fea
 	github.com/goplus/gox v1.11.32
-	github.com/goplus/reflectx v1.0.0
+	github.com/goplus/reflectx v1.1.1
 	github.com/modern-go/reflect2 v1.0.2
 	github.com/peterh/liner v1.2.2
 	github.com/qiniu/x v1.11.9
diff --git a/go.sum b/go.sum
index 81676fdc..cd28d4b1 100644
--- a/go.sum
+++ b/go.sum
@@ -13,8 +13,8 @@ github.com/goplus/gox v1.11.32/go.mod h1:hdKq5ghywtKWnBJNQNVBkPITmWCqCFRwwd2LTYT
 github.com/goplus/libc v0.3.13/go.mod h1:xqG4/g3ilKBE/UDn5vkaE7RRQPQPyspj7ecuMuvlQJ8=
 github.com/goplus/mod v0.9.12 h1:CjgBGQIYqUTPGl3MrAS5CICzJwxbIfSa4OlEb141Gs4=
 github.com/goplus/mod v0.9.12/go.mod h1:YoPIowz71rnLLROA4YG0AC8bzDtPRyMaQwgTRLr8ri4=
-github.com/goplus/reflectx v1.0.0 h1:7KXnjojn5uM9ErYs/T9sf7+fdmO7obmpouMnOBhFBQE=
-github.com/goplus/reflectx v1.0.0/go.mod h1:wHOS9ilbB4zrecI0W1dMmkW9JMcpXV7VjALVbNU9xfM=
+github.com/goplus/reflectx v1.1.1 h1:4acdcG7+uIHdl7le1vAEt9M2HwGWNlVqv1fd4YsdCg0=
+github.com/goplus/reflectx v1.1.1/go.mod h1:wHOS9ilbB4zrecI0W1dMmkW9JMcpXV7VjALVbNU9xfM=
 github.com/json-iterator/go v1.1.12/go.mod h1:e30LSqwooZae/UwlEbR2852Gd8hjQvJoHmT4TnhNGBo=
 github.com/mattn/go-runewidth v0.0.3 h1:a+kO+98RDGEfo6asOGMmpodZq4FNtnGP54yps8BzLR4=
 github.com/mattn/go-runewidth v0.0.3/go.mod h1:LwmH8dsx7+W8Uxz3IHJYH5QSwggIsqBzpuz5H//U1FU=
diff --git a/interp.go b/interp.go
index 1a86d43c..31946b4f 100644
--- a/interp.go
+++ b/interp.go
@@ -144,7 +144,7 @@ func (i *Interp) findType(rt reflect.Type, local bool) (types.Type, bool) {
 }
 
 func (i *Interp) tryDeferFrame() *frame {
-	if atomic.LoadInt32(&i.deferCount) != 0 {
+	if i != nil && atomic.LoadInt32(&i.deferCount) != 0 {
 		if f, ok := i.deferMap.Load(goroutineID()); ok {
 			return f.(*frame)
 		}
@@ -152,12 +152,16 @@ func (i *Interp) tryDeferFrame() *frame {
 	return &frame{}
 }
 
+func (pfn *function) callFunctionByReflect(mtyp reflect.Type, args []reflect.Value, env []interface{}) []reflect.Value {
+	return pfn.Interp.callFunctionByReflect(pfn.Interp.tryDeferFrame(), mtyp, pfn, args, env)
+}
+
 func (i *Interp) FindMethod(mtyp reflect.Type, fn *types.Func) func([]reflect.Value) []reflect.Value {
 	typ := fn.Type().(*types.Signature).Recv().Type()
 	if f := i.mainpkg.Prog.LookupMethod(typ, fn.Pkg(), fn.Name()); f != nil {
 		pfn := i.loadFunction(f)
 		return func(args []reflect.Value) []reflect.Value {
-			return i.callFunctionByReflect(i.tryDeferFrame(), mtyp, pfn, args, nil)
+			return pfn.callFunctionByReflect(mtyp, args, nil)
 		}
 	}
 	name := fn.FullName()
@@ -174,9 +178,9 @@ func (i *Interp) FindMethod(mtyp reflect.Type, fn *types.Func) func([]reflect.Va
 	panic(fmt.Sprintf("Not found method %v", fn))
 }
 
-func (i *Interp) makeFunction(typ reflect.Type, pfn *function, env []value) reflect.Value {
+func (pfn *function) makeFunction(typ reflect.Type, env []value) reflect.Value {
 	return reflect.MakeFunc(typ, func(args []reflect.Value) []reflect.Value {
-		return i.callFunctionByReflect(i.tryDeferFrame(), typ, pfn, args, env)
+		return pfn.Interp.callFunctionByReflect(pfn.Interp.tryDeferFrame(), typ, pfn, args, env)
 	})
 }
 
@@ -1129,7 +1133,6 @@ func doRecover(caller *frame) value {
 //
 
 func NewInterp(ctx *Context, mainpkg *ssa.Package) (*Interp, error) {
-	reflectx.Reset()
 	return newInterp(ctx, mainpkg, nil)
 }
 
@@ -1298,6 +1301,32 @@ func (i *Interp) RunInit() (err error) {
 	return
 }
 
+// icall allocate stat
+func IcallStat() (capacity int, allocate int, aviable int) {
+	return reflectx.IcallStat()
+}
+
+// icall allocate
+func (i *Interp) IcallAlloc() int {
+	return i.record.rctx.IcallAlloc()
+}
+
+func (i *Interp) UnsafeReleaseIcall() {
+	i.record.rctx.Reset()
+}
+
+func (i *Interp) UnsafeRelease() {
+	i.record.Release()
+	for _, v := range i.funcs {
+		v.UnsafeRelease()
+	}
+	i.funcs = nil
+	i.msets = nil
+	i.globals = nil
+	i.preloadTypes = nil
+	i.record = nil
+}
+
 func (i *Interp) Abort() {
 	atomic.StoreInt32(&i.exited, 1)
 }
@@ -1325,7 +1354,7 @@ func (i *Interp) GetFunc(key string) (interface{}, bool) {
 	if !ok {
 		return nil, false
 	}
-	return i.makeFunction(i.toType(fn.Type()), i.funcs[fn], nil).Interface(), true
+	return i.funcs[fn].makeFunction(i.toType(fn.Type()), nil).Interface(), true
 }
 
 func (i *Interp) GetVarAddr(key string) (interface{}, bool) {
@@ -1402,7 +1431,7 @@ func (i *Interp) GetSymbol(key string) (m ssa.Member, v interface{}, ok bool) {
 		v, ok = globalToValue(i, p)
 	case *ssa.Function:
 		typ := i.toType(p.Type())
-		v = i.makeFunction(typ, i.funcs[p], nil)
+		v = i.funcs[p].makeFunction(typ, nil)
 	case *ssa.Type:
 		v = i.toType(p.Type())
 	}
diff --git a/opblock.go b/opblock.go
index e6271409..72d7df20 100644
--- a/opblock.go
+++ b/opblock.go
@@ -126,6 +126,20 @@ type function struct {
 	cached     int32                        // enable cached by pool
 }
 
+func (p *function) UnsafeRelease() {
+	p.Interp = nil
+	p.Fn = nil
+	p.pool = nil
+	p.index = nil
+	p.instrIndex = nil
+	p.Instrs = nil
+	p.Recover = nil
+	p.Blocks = nil
+	p.stack = nil
+	p.ssaInstrs = nil
+	p.Main = nil
+}
+
 func (p *function) initPool() {
 	p.pool = &sync.Pool{}
 	p.pool.New = func() interface{} {
@@ -217,7 +231,7 @@ func (p *function) regInstr(v ssa.Value) uint32 {
 		if v.Blocks != nil {
 			typ := p.Interp.preToType(v.Type())
 			pfn := p.Interp.loadFunction(v)
-			vs = p.Interp.makeFunction(typ, pfn, nil).Interface()
+			vs = pfn.makeFunction(typ, nil).Interface()
 		} else {
 			ext, ok := findExternFunc(p.Interp, v)
 			if !ok {
@@ -494,7 +508,7 @@ func makeInstr(interp *Interp, pfn *function, instr ssa.Instruction) func(fr *fr
 			for i := range instr.Bindings {
 				bindings = append(bindings, fr.reg(ib[i]))
 			}
-			v := interp.makeFunction(typ, pfn, bindings)
+			v := pfn.makeFunction(typ, bindings)
 			fr.setReg(ir, v.Interface())
 		}
 	case *ssa.MakeChan:
@@ -1155,19 +1169,18 @@ func makeCallInstr(pfn *function, interp *Interp, instr ssa.Value, call *ssa.Cal
 	}
 }
 
-// makeFuncVal sync with Interp.makeFunc
-// func (i *Interp) makeFunc(typ reflect.Type, pfn *Function, env []value) reflect.Value {
+// makeFuncVal sync with function.makeFunction
+// func (pfn *function) makeFunction(typ reflect.Type, env []value) reflect.Value {
 // 	return reflect.MakeFunc(typ, func(args []reflect.Value) []reflect.Value {
-// 		return i.callFunctionByReflect(i.tryDeferFrame(), typ, pfn, args, env)
+// 		return pfn.Interp.callFunctionByReflect(pfn.Interp.tryDeferFrame(), typ, pfn, args, env)
 // 	})
 // }
 
 type makeFuncVal struct {
 	funcval.FuncVal
-	interp *Interp
-	typ    reflect.Type
-	pfn    *function
-	env    []interface{}
+	pfn *function
+	typ reflect.Type
+	env []interface{}
 }
 
 var (
diff --git a/runtime.go b/runtime.go
index 1e568ff6..093b8196 100644
--- a/runtime.go
+++ b/runtime.go
@@ -62,15 +62,18 @@ func init() {
 	RegisterExternal("runtime.Stack", runtimeStack)
 	RegisterExternal("runtime/debug.Stack", debugStack)
 	RegisterExternal("runtime/debug.PrintStack", debugPrintStack)
-	RegisterExternal("(reflect.Value).Pointer", func(v reflect.Value) uintptr {
-		if v.Kind() == reflect.Func {
-			if fv, n := funcval.Get(v.Interface()); n == 1 {
-				pc := (*makeFuncVal)(unsafe.Pointer(fv)).pfn.base
-				return uintptr(pc)
+
+	if funcval.IsSupport {
+		RegisterExternal("(reflect.Value).Pointer", func(v reflect.Value) uintptr {
+			if v.Kind() == reflect.Func {
+				if fv, n := funcval.Get(v.Interface()); n == 1 {
+					pc := (*makeFuncVal)(unsafe.Pointer(fv)).pfn.base
+					return uintptr(pc)
+				}
 			}
-		}
-		return v.Pointer()
-	})
+			return v.Pointer()
+		})
+	}
 }
 
 func runtimeFuncFileLine(fr *frame, f *runtime.Func, pc uintptr) (file string, line int) {
diff --git a/visit.go b/visit.go
index 8f0e9a11..7ef1d520 100644
--- a/visit.go
+++ b/visit.go
@@ -161,7 +161,7 @@ func (visit *visitor) findLinkFunc(sym *load.LinkSym) (ext reflect.Value, ok boo
 		}
 		typ := visit.intp.preToType(sig)
 		pfn := visit.intp.loadFunction(link)
-		ext = visit.intp.makeFunction(typ, pfn, nil)
+		ext = pfn.makeFunction(typ, nil)
 		ok = true
 	}
 	return
diff --git a/xtypes.go b/xtypes.go
index 84b3af46..a9edcdde 100644
--- a/xtypes.go
+++ b/xtypes.go
@@ -170,6 +170,7 @@ type FindMethod interface {
 }
 
 type TypesRecord struct {
+	rctx    *reflectx.Context // reflectx context
 	loader  Loader
 	finder  FindMethod
 	rcache  map[reflect.Type]types.Type
@@ -180,8 +181,19 @@ type TypesRecord struct {
 	nstack  nestedStack
 }
 
+func (r *TypesRecord) Release() {
+	r.rctx.Reset()
+	r.loader = nil
+	r.rcache = nil
+	r.tcache = nil
+	r.ncache = nil
+	r.finder = nil
+	r.nested = nil
+}
+
 func NewTypesRecord(loader Loader, finder FindMethod, nested map[*types.Named]int) *TypesRecord {
 	return &TypesRecord{
+		rctx:   reflectx.NewContext(),
 		loader: loader,
 		finder: finder,
 		rcache: make(map[reflect.Type]types.Type),
@@ -297,7 +309,7 @@ func (r *TypesRecord) toInterfaceType(t *types.Interface) (reflect.Type, bool) {
 			ms[i].PkgPath = pkg.Path()
 		}
 	}
-	return reflectx.InterfaceOf(nil, ms), nested
+	return r.rctx.InterfaceOf(nil, ms), nested
 }
 
 func (r *TypesRecord) toNamedType(t *types.Named) (reflect.Type, bool) {
@@ -322,7 +334,7 @@ func (r *TypesRecord) toNamedType(t *types.Named) (reflect.Type, bool) {
 			}
 			pcount++
 		}
-		typ = reflectx.NewMethodSet(typ, mcount, pcount)
+		typ = r.rctx.NewMethodSet(typ, mcount, pcount)
 	}
 	r.saveType(t, typ, nested)
 	utype, _ := r.ToType(ut)
@@ -352,7 +364,7 @@ func (r *TypesRecord) toStructType(t *types.Struct) (reflect.Type, bool) {
 		}
 		flds[i] = r.toStructField(f, typ, t.Tag(i))
 	}
-	typ := reflectx.StructOf(flds)
+	typ := r.rctx.StructOf(flds)
 	methods := typeutil.IntuitiveMethodSet(t, nil)
 	if numMethods := len(methods); numMethods != 0 {
 		// anonymous structs with methods. struct { T }
@@ -364,7 +376,7 @@ func (r *TypesRecord) toStructType(t *types.Struct) (reflect.Type, bool) {
 			}
 			pcount++
 		}
-		typ = reflectx.NewMethodSet(typ, mcount, pcount)
+		typ = r.rctx.NewMethodSet(typ, mcount, pcount)
 		r.setMethods(typ, methods)
 	}
 	return typ, nested
@@ -450,7 +462,7 @@ func (r *TypesRecord) setMethods(typ reflect.Type, methods []*types.Selection) {
 		}
 		ms = append(ms, reflectx.MakeMethod(fn.Name(), pkgpath, pointer, mtyp, mfn))
 	}
-	err := reflectx.SetMethodSet(typ, ms, false)
+	err := r.rctx.SetMethodSet(typ, ms, false)
 	if err != nil {
 		log.Fatalf("SetMethodSet %v err, %v\n", typ, err)
 	}