reduce runtime for PyPy benchmarks

Author: timfel

mx.graalpython/mx_graalpython_benchmark.py

@@ -161,21 +161,23 @@ def __init__(self, config_name, options=None, env=None, iterations=None):
         except:
             self._iterations = None
 
+    def override_iterations(self, requested_iterations):
+        return self._iterations if self._iterations is not None else requested_iterations
+
     def _override_iterations_args(self, args):
         _args = []
         i = 0
         while i < len(args):
             arg = args[i]
             _args.append(arg)
             if arg == '-i':
-                _args.append(str(self._iterations))
+                _args.append(str(self.override_iterations(int(args[i + 1]))))
                 i += 1
             i += 1
         return _args
 
     def run(self, cwd, args):
-        if self._iterations is not None:
-            args = self._override_iterations_args(args)
+        args = self._override_iterations_args(args)
         return super(AbstractPythonIterationsControlVm, self).run(cwd, args)
 
 
@@ -202,6 +204,10 @@ class PyPyVm(AbstractPythonIterationsControlVm):
     def __init__(self, config_name, options=None, env=None, iterations=None):
         super(PyPyVm, self).__init__(config_name, options=options, env=env, iterations=iterations)
 
+    def override_iterations(self, requested_iterations):
+        # PyPy warms up much faster, half should be enough
+        return int(requested_iterations / 2)
+
     @property
     def interpreter(self):
         home = mx.get_env(ENV_PYPY_HOME)