diff --git a/Modules/_testcapimodule.c b/Modules/_testcapimodule.c
index 101d54932d..f0063dce80 100644
--- a/Modules/_testcapimodule.c
+++ b/Modules/_testcapimodule.c
@@ -5263,6 +5263,58 @@ pynumber_tobase(PyObject *module, PyObject *args)
 }
 
 
+_Py_IDENTIFIER(a);
+_Py_IDENTIFIER(abc);
+
+static PyObject*
+bench_fromid1(PyObject *module, PyObject *args)
+{
+    Py_ssize_t loops;
+    if (!PyArg_ParseTuple(args, "n", &loops)) {
+        return NULL;
+    }
+    _PyTime_t t1 = _PyTime_GetPerfCounter();
+    for (Py_ssize_t i=0; i < loops; i++) {
+        _PyUnicode_FromId(&PyId_a);
+        _PyUnicode_FromId(&PyId_a);
+        _PyUnicode_FromId(&PyId_a);
+        _PyUnicode_FromId(&PyId_a);
+        _PyUnicode_FromId(&PyId_a);
+        _PyUnicode_FromId(&PyId_a);
+        _PyUnicode_FromId(&PyId_a);
+        _PyUnicode_FromId(&PyId_a);
+        _PyUnicode_FromId(&PyId_a);
+        _PyUnicode_FromId(&PyId_a);
+    }
+    _PyTime_t t2 = _PyTime_GetPerfCounter();
+    return PyFloat_FromDouble(_PyTime_AsSecondsDouble(t2 - t1));
+}
+
+static PyObject*
+bench_fromid2(PyObject *module, PyObject *args)
+{
+    Py_ssize_t loops;
+    if (!PyArg_ParseTuple(args, "n", &loops)) {
+        return NULL;
+    }
+    _PyTime_t t1 = _PyTime_GetPerfCounter();
+    for (Py_ssize_t i=0; i < loops; i++) {
+        _PyUnicode_FromId(&PyId_abc);
+        _PyUnicode_FromId(&PyId_abc);
+        _PyUnicode_FromId(&PyId_abc);
+        _PyUnicode_FromId(&PyId_abc);
+        _PyUnicode_FromId(&PyId_abc);
+        _PyUnicode_FromId(&PyId_abc);
+        _PyUnicode_FromId(&PyId_abc);
+        _PyUnicode_FromId(&PyId_abc);
+        _PyUnicode_FromId(&PyId_abc);
+        _PyUnicode_FromId(&PyId_abc);
+    }
+    _PyTime_t t2 = _PyTime_GetPerfCounter();
+    return PyFloat_FromDouble(_PyTime_AsSecondsDouble(t2 - t1));
+}
+
+
 static PyObject *test_buildvalue_issue38913(PyObject *, PyObject *);
 
 static PyMethodDef TestMethods[] = {
@@ -5523,6 +5575,8 @@ static PyMethodDef TestMethods[] = {
     {"meth_fastcall", (PyCFunction)(void(*)(void))meth_fastcall, METH_FASTCALL},
     {"meth_fastcall_keywords", (PyCFunction)(void(*)(void))meth_fastcall_keywords, METH_FASTCALL|METH_KEYWORDS},
     {"pynumber_tobase", pynumber_tobase, METH_VARARGS},
+    {"bench_fromid1", bench_fromid1, METH_VARARGS},
+    {"bench_fromid2", bench_fromid2, METH_VARARGS},
     {NULL, NULL} /* sentinel */
 };