[Closed] Unwrap random move polygons speed

Hello.
I need your help to make my code work faster. I know it’s possible to make it ~2x faster because one popular script can do that

I need to randomize uv shells, not uv polygons, but this code is just an example to understand my issue. It creates plane 70×70, breaks all vertices to get 4900 uv elements and then randomizes their position in Unwrap.

For now I have 3 methods:

• Method 1.
  Works fine. But as I said, I’m sure it’s possible to randomize 4900 uv polys 2 times faster.

• Method 2.
  I think it could be faster because it doesn’t need face>vert conversion, but “moveSelected” function eats ~2.2GB of RAM (3dsmax process, not script itself) maybe because of TheHold.Put inside C++ method. Also I suppose this method could be faster without this undo issue but I don’t understand how to disable TheHold.Put. I tried SuperBegin-SuperAccept and “undo off” with no luck.

• Method 3.
  Here I’m trying to check if selecting vertices is faster than selecting polys and converting to vertices (Method 1). So I selected #{1…4} verts just to test it, and this method is surprisingly slower than Method 1.

I will appreciative any help.

(
	-- create test object
	local obj = Plane width:1000 length:1000 lengthsegs:70 widthsegs:70
	convertToPoly obj
	polyop.breakVerts obj #{1..(polyop.getNumVerts obj)}
	local numfaces = polyop.getNumFaces obj
	local allUvPolys = #{1..numfaces}
	local unwMod = Unwrap_UVW()
	addmodifier obj unwMod
	select obj
	
	-- cache functions
	c_selectPolygonsUpdate = unwMod.selectPolygonsUpdate
	c_selectVertices = unwMod.selectVertices
	c_moveSelectedVertices = unwMod.moveSelectedVertices
	c_moveSelected = unwMod.moveSelected
	c_getSelectionFromFace = unwMod.GetSelectionFromFace
	
	clearlistener()
	ts1 = timestamp()
	-- move uv elements method 1
	subobjectlevel = 1
	for p in allUvPolys do (
		c_selectPolygonsUpdate #{p} false
		c_getSelectionFromFace()
		theOffset = [random -0.1 0.1 , random -0.1 0.1 , 0]
		c_moveSelectedVertices theOffset
	)
	subobjectlevel = 0
	format "uv move METHOD 1: % ms\n" (timestamp() - ts1)
	ts2 = timestamp()
	
	-- move uv elements method 2
	for p in allUvPolys do (
		c_selectPolygonsUpdate #{p} false
		theOffset = [random -0.1 0.1 , random -0.1 0.1 , 0]
		c_moveSelected theOffset
	)
	format "uv move METHOD 2: % ms\n" (timestamp() - ts2)
	ts3 = timestamp()

	-- move uv elements method 3
	for p in allUvPolys do (
		c_selectVertices #{1..4} -- selecting any vertices
		theOffset = [random -0.1 0.1 , random -0.1 0.1 , 0]
		c_moveSelectedVertices theOffset
	)
	format "uv move METHOD 3: % ms\n" (timestamp() - ts3)
)

My time:
uv move METHOD 1: 2663 ms
uv move METHOD 2: 2701 ms
uv move METHOD 3: 3467 ms