# Paraview UI hangs/glitches out with 10 million point 2D scatter plot
**URL:** https://discourse.paraview.org/t/paraview-ui-hangs-glitches-out-with-10-million-point-2d-scatter-plot/6340
**Category:** Development
**Created:** [January 29, 2021, 10:13am UTC](https://discourse.paraview.org/t/paraview-ui-hangs-glitches-out-with-10-million-point-2d-scatter-plot/6340 "2021-01-29T10:13:04Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@cirosantilli](https://discourse.paraview.org/u/cirosantilli)
#### Post date: [January 29, 2021, 10:13am UTC](https://discourse.paraview.org/t/paraview-ui-hangs-glitches-out-with-10-million-point-2d-scatter-plot/6340/1 "2021-01-29T10:13:04Z")
Hi there, I’ve stumbled virtually upon @mwestphal and he said this might be worth sending a message here about it, so here it is.
The exact data set and use case are described at: [https://stackoverflow.com/questions/5854515/interactive-large-plot-with-20-million-sample-points-and-gigabytes-of-data/55967461#55967461](https://stackoverflow.com/questions/5854515/interactive-large-plot-with-20-million-sample-points-and-gigabytes-of-data/55967461#55967461)
Basically I want to plot 10 million points and select some outliers with the mouse to see their other dimensions, this generates the CSV test data:
```auto
i=0;
while ["$i" -lt 10000000]; do
echo "$i,$((2 * i)),$((4 * i))"; i=$((i + 1));
done > 10m1.csv
echo 5000000,20000000,-1 >> 10m1.csv
```
I’m afraid Paraview 5.9.0 couldn’t handle that number of points on my testing, the UI hang/glitched out, I’m not sure which. 32GB RAM 8 core CPU.
In any case, I was glad to play with Paraview and other interactive plotting software for the first time, it does look really cool.
Also keep in mind that I was just Googling for all possible plotters to see if any solved my use case, and I understand that this might not be the use case it was designed for/I’m using it wrong. But maybe it is also value in seeing the impressions of a newbie.
I had only used gnuplot/matplotlib previously, but they didn’t handle this many points for interactive purposes.
In the end I found Vaex handled this use case amazingly even for 1B points.
Cheers and thanks for maintaining ParaView!
---
### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [January 29, 2021, 10:15am UTC](https://discourse.paraview.org/t/paraview-ui-hangs-glitches-out-with-10-million-point-2d-scatter-plot/6340/2 "2021-01-29T10:15:20Z")
I’d suggest reading the stack overflow post from @cirosantilli, It is very informative and true research work.