# simple.Show(trivialProducer) takes much time

**URL:** https://discourse.paraview.org/t/simple-show-trivialproducer-takes-much-time/6826
**Category:** Web Support
**Tags:** python
**Created:** [March 30, 2021, 1:44pm UTC](https://discourse.paraview.org/t/simple-show-trivialproducer-takes-much-time/6826 "2021-03-30T13:44:04Z")
**Posts on this page:** 1
**Page:** 1

<div class="post-metadata">

### Author: ![Superstarimage](https://discourse.paraview.org/letter_avatar_proxy/v4/letter/s/977dab/32.png) [@Superstarimage](https://discourse.paraview.org/u/Superstarimage)
#### Post date: [March 30, 2021, 1:44pm UTC](https://discourse.paraview.org/t/simple-show-trivialproducer-takes-much-time/6826/1 "2021-03-30T13:44:04Z")

</div>

Hello,  
When I using this program bellow to draw a line, I find that the code ‘simple.Show(trivialProducer)’ has spent amost 0.04s. In other examples, such as draw a clone, or simple polydata wrote by myself, also spent amost 0.04s. And when the polydata is bigger, the show time will increase. So is there any good way to replase this method to get a much better speed?

Thank you a lot.

```auto
from vtkmodules.vtkCommonDataModel import vtkPolyData, vtkCellArray
from vtkmodules.vtkCommonCore import vtkPoints, vtkFloatArray

from paraview import simple

polyData = vtkPolyData()
polyData.SetPoints(vtkPoints())

polyData.SetLines(vtkCellArray())

points = polyData.GetPoints()
lines = polyData.GetLines()

points.InsertNextPoint(0, 1, 0) # id: 0
points.InsertNextPoint(0, 2, 0) # id: 1
points.InsertNextPoint(0, 3, 0) # id: 2
points.InsertNextPoint(0, 4, 0) # id: 3
points.InsertNextPoint(0, 5, 0) # id: 4

lines.InsertNextCell(points.GetNumberOfPoints())
lines.InsertCellPoint(0)
lines.InsertCellPoint(1)
lines.InsertCellPoint(2)
lines.InsertCellPoint(3)
lines.InsertCellPoint(4)

trivialProducer = simple.TrivialProducer()
trivialProducer.GetClientSideObject().SetOutput(polyData)

simple.Show(trivialProducer)
simple.Render()

```