# Optimization of the display function
**URL:** https://discourse.paraview.org/t/optimization-of-the-display-function/12934
**Category:** ParaView Support
**Tags:** python
**Created:** [September 26, 2023, 1:41pm UTC](https://discourse.paraview.org/t/optimization-of-the-display-function/12934 "2023-09-26T13:41:06Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@RafaMADFT](https://discourse.paraview.org/u/RafaMADFT)
#### Post date: [September 26, 2023, 1:41pm UTC](https://discourse.paraview.org/t/optimization-of-the-display-function/12934/1 "2023-09-26T13:41:06Z")
Good morning, i have a question regarding a coomand used in python to show data in view:
# show data in view
```
casefoamDisplay = Show(casefoam, renderView1, 'GeometryRepresentation')
```
This command is taking around 10 minutes to execute when i run my code, moreover, when i try to display the extract blocks, take a while as well.
Do you know how to optimize it, a different command or domething to make it faster?.
---
### Author:  [@nicolas.vuaille](https://discourse.paraview.org/u/nicolas.vuaille)
#### Post date: [September 27, 2023, 8:42am UTC](https://discourse.paraview.org/t/optimization-of-the-display-function/12934/2 "2023-09-27T08:42:04Z")
Well, we do not have an explicitly “slow” method and a “quick” one. So one need to investigate what exactly is long in your case.
In fact, different things occurs behind the `Show`:
1. **update** the whole upstream pipeline (if needed). In a script case, the first `Show` will trigger the reader for instance.
2. **create** the `Representation` object, i.e. prepare data for rendering. With `GeometryRepresentation`, it extracts the external surface of the mesh, create a default colormap, etc…
The `1.` can also be done with `UpdatePipeline`, so you can see which part is long.
For more timing details, you look at the execution logger. See `--log` and `--verbosity` option of paraview / pvpython. In the interface, go to `Tools / Log viewer`.
For instance
```sh
./bin/pvpython --log=output.log,TRACE
```
See also:
- [https://www.kitware.com/paraviews-advanced-logging-user-interface/](https://www.kitware.com/paraviews-advanced-logging-user-interface/)
- [New logging support in ParaView](https://discourse.paraview.org/t/new-logging-support-in-paraview/1308)