--- /dev/null
+## Copyright (C) 2014-2017 CEA/DEN, EDF R&D
+##
+## This library is free software; you can redistribute it and/or
+## modify it under the terms of the GNU Lesser General Public
+## License as published by the Free Software Foundation; either
+## version 2.1 of the License, or (at your option) any later version.
+##
+## This library is distributed in the hope that it will be useful,
+## but WITHOUT ANY WARRANTY; without even the implied warranty of
+## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+## Lesser General Public License for more details.
+##
+## You should have received a copy of the GNU Lesser General Public
+## License along with this library; if not, write to the Free Software
+## Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+##
+## See http:##www.salome-platform.org/ or
+## email : webmaster.salome@opencascade.com<mailto:webmaster.salome@opencascade.com>
+##
+
+# -*- coding: utf-8 -*-
+
+from SketchAPI import *
+
+from salome.shaper import model
+from timeit import default_timer as timer
+
+# initial time value
+startTime = timer()
+
+model.begin()
+partSet = model.moduleDocument()
+param_l1 = model.addParameter(partSet, "l1", "20")
+param_l2 = model.addParameter(partSet, "l2", "5")
+param_a1 = model.addParameter(partSet, "a1", "35")
+param_a2 = model.addParameter(partSet, "a2", "150")
+Sketch_1 = model.addSketch(partSet, model.defaultPlane("XOY"))
+SketchLine_1 = Sketch_1.addLine(0, 35.14523516719186, 10, 35.14523516719186)
+SketchLine_2 = Sketch_1.addLine(10.57357643635423, 33.32608312288851, 6.47781621490927, 30.45820094113327)
+SketchLine_3 = Sketch_1.addLine(6.47781621490927, 30.45820094113327, 3, 23)
+SketchLine_4 = Sketch_1.addLine(3, 23, 3, 3)
+SketchConstraintCoincidence_1 = Sketch_1.setCoincident(SketchLine_3.endPoint(), SketchLine_4.startPoint())
+SketchConstraintCoincidence_1.setName("SketchConstraintCoincidence_3")
+SketchProjection_1 = Sketch_1.addProjection(model.selection("EDGE", "OX"), False)
+SketchLine_5 = SketchProjection_1.createdFeature()
+SketchConstraintCoincidence_2 = Sketch_1.setCoincident(SketchLine_3.startPoint(), SketchLine_2.endPoint())
+SketchConstraintCoincidence_2.setName("SketchConstraintCoincidence_4")
+SketchConstraintHorizontal_1 = Sketch_1.setHorizontal(SketchLine_1.result())
+SketchProjection_2 = Sketch_1.addProjection(model.selection("EDGE", "OY"), False)
+SketchLine_6 = SketchProjection_2.createdFeature()
+SketchConstraintLength_1 = Sketch_1.setLength(SketchLine_4.result(), "l1")
+SketchArc_1 = Sketch_1.addArc(10.00000000000669, 34.14523516718319, 10.57357643635423, 33.32608312288851, 10, 35.14523516719186, False)
+SketchConstraintCoincidence_3 = Sketch_1.setCoincident(SketchArc_1.startPoint(), SketchLine_2.startPoint())
+SketchConstraintCoincidence_4 = Sketch_1.setCoincident(SketchArc_1.endPoint(), SketchLine_1.endPoint())
+SketchConstraintTangent_1 = Sketch_1.setTangent(SketchArc_1.results()[1], SketchLine_1.result())
+SketchConstraintTangent_2 = Sketch_1.setTangent(SketchArc_1.results()[1], SketchLine_2.result())
+SketchConstraintRadius_1 = Sketch_1.setRadius(SketchArc_1.results()[1], 1)
+SketchConstraintAngle_1 = Sketch_1.setAngle(SketchLine_3.result(), SketchLine_2.result(), "a2")
+SketchConstraintLength_2 = Sketch_1.setLength(SketchLine_2.result(), "l2")
+SketchConstraintAngle_2 = Sketch_1.setAngleBackward(SketchLine_2.result(), SketchLine_1.result(), "a1")
+SketchConstraintCoincidence_5 = Sketch_1.setCoincident(SketchLine_1.startPoint(), SketchLine_6.result())
+SketchConstraintVertical_1 = Sketch_1.setVertical(SketchLine_4.result())
+SketchConstraintDistanceHorizontal_1 = Sketch_1.setHorizontalDistance(SketchLine_4.endPoint(), SketchAPI_Line(SketchLine_6).startPoint(), 3)
+SketchConstraintDistanceVertical_1 = Sketch_1.setVerticalDistance(SketchLine_4.endPoint(), SketchAPI_Line(SketchLine_6).startPoint(), 3)
+SketchConstraintLength_3 = Sketch_1.setLength(SketchLine_1.result(), "l1/2")
+SketchConstraintMirror_1_objects = [SketchLine_1.result(), SketchArc_1.results()[1], SketchLine_2.result(), SketchLine_3.result(), SketchLine_4.result()]
+SketchConstraintMirror_1 = Sketch_1.addMirror(SketchLine_6.result(), SketchConstraintMirror_1_objects)
+[SketchLine_7, SketchArc_2, SketchLine_8, SketchLine_9, SketchLine_10] = SketchConstraintMirror_1.mirrored()
+SketchMultiRotation_1_objects = [SketchLine_10.result(), SketchLine_9.result(), SketchLine_8.result(), SketchArc_2.results()[1], SketchLine_7.result(), SketchLine_1.result(), SketchArc_1.results()[1], SketchLine_2.result(), SketchLine_3.result(), SketchLine_4.result()]
+SketchMultiRotation_1 = Sketch_1.addRotation(SketchMultiRotation_1_objects, SketchAPI_Line(SketchLine_6).startPoint(), 360, 4, True)
+[SketchLine_10, SketchLine_11, SketchLine_12, SketchLine_13, SketchLine_9, SketchLine_14, SketchLine_15, SketchLine_16, SketchLine_8, SketchLine_17, SketchLine_18, SketchLine_19, SketchArc_2, SketchArc_3, SketchArc_4, SketchArc_5, SketchLine_7, SketchLine_20, SketchLine_21, SketchLine_22, SketchLine_23, SketchLine_24, SketchLine_25, SketchArc_6, SketchArc_7, SketchArc_8, SketchLine_26, SketchLine_27, SketchLine_28, SketchLine_29, SketchLine_30, SketchLine_31, SketchLine_32, SketchLine_33, SketchLine_34] = SketchMultiRotation_1.rotated()
+model.do()
+Part_1 = model.addPart(partSet)
+Part_1_doc = Part_1.document()
+Extrusion_1 = model.addExtrusion(Part_1_doc, [model.selection("FACE", "PartSet/Sketch_1")], model.selection(), 5, 0)
+Fillet_1 = model.addFillet(Part_1_doc, [model.selection("FACE", "Extrusion_1_1/To_Face_1"), model.selection("FACE", "Extrusion_1_1/From_Face_1")], 1)
+model.end()
+
+# creation of the model time
+creationTime = timer() - startTime
+print("Creation time: {0}".format(creationTime))
+
+# disable automatic recalculation, so, modification of parameters cause norecomputation immediately
+from ModelAPI import *
+aSession = ModelAPI_Session.get()
+aSession.blockAutoUpdate(True)
+
+#update parameters one by one
+model.begin()
+param_l1.setValue(15)
+model.do()
+param_l2.setValue(3)
+model.do()
+param_a1.setValue(20)
+model.do()
+param_a2.setValue(145)
+model.end()
+
+aSession.blockAutoUpdate(False)
+
+# compute update parameters and recomputation of the model time
+modificationTime = timer() - startTime - creationTime
+print("Modification time: {0}".format(modificationTime))
+
+# check that volume was recomputed in accordance to parameters
+model.testResultsVolumes(Fillet_1, [3242.917586105217651493148878217])
+
+# check that 4 modification of parameters was not slower than 2 update of model (without block it is minimum 3 times of creation time)
+assert(modificationTime < 2. * creationTime)
