Intellij - How to run it with nVidia

Question

I think here is the most suitable place for me to ask this question.

Well, Intellij is very lag at the beginning. I tried it run the 64 bit version of the IDE, lag reduced a lot. But it is still lagging at the beginning. I think the best solution is, run it with my nVidia graphics card. I added idea64.exe (I found the location at task manager ....\\bin\\idea64.exe). I launched it again. It was still lagging. I checked the NVIDIA GPU Activity , none.

Is that any way to launch it with nVidia? I think the idea64.exe is a launcher. It will run another exe / jar after we selected the project.

EDIT: What I mean by lag is, when you typed a word like p , the ide lagged about 1~2 seconds, after that the auto complete box popped out. If I click File, the ide also lagged about 1~2 seconds. After that it work very fine if you click it again.

Last time my graphics card software broke. Eclipse also have problem like this. After I reinstall the graphics card software, Eclipse work smoothly.

Answer 1

IDE's don't use much graphics processing power. They primarily use your CPU, memory, and hard drive.

One of those is probably your bottleneck. IntelliJ is very resource intensive in all three of those categories.

Answer 2

Yes, idea64.exe is the launcher. Note that NVIDIA GPU Activity doesnt always show everything the gpu is running (but in this case it should).

Also its probably not an issue with graphics, an ide does not require any graphical performance. Probably some other requirement. Could you post your system specifications? and ram usage?

Just FYI to run application on gpu you can simply right click the exe and select "run with graphics processor" -> "Nvidia GPU"

Answer 3

Please see the lists of the plugins enabled in your installation and disable those that you don't need.

It's very easy to enable all out of the box plugins in IntelliJ by mistake when you install it by repeatedly clicking on Next .

Answer 4

To force running on Nvidia assigning in NVidia Controlpanel is not sufficient:

These steps can be used for any Swing application - eg Java2D Demo.

1. Add these vm options (Help -> Edit Custom VM Options):

   -Dsun.java2d.d3d=true

   -Dsun.java2d.noddraw=false

2. In NVidia Controlpanel: Add the idea64.exe to be run on NVidia GPU Any java process using the GPU will be shown in the 'NVIDIA GPU Activity' systray.

My experience is that using the GPU for the IDE is not worth it - see below GPU/CPU usages.

However, it is extremely beneficial for Graphic Intensive Swing Application. They make use of the GPU and you have a bit more CPU resources.

In my case, the IDE is not using much GPU except for scrolling and even here the CPU is sufficient.

With my recent Hardware the overall CPU+GPU load was higher which is bad because Laptop fans turn on quicker. So I disabled running it on GPU - see the Screenshots below.

My Config:

IntelliJ 2020.02 (See taskmgr) Windows 1903, Dell Laptop 15" 7540 - Xeon E-2286M - 128GB ECC RAM - NVidia RTX 5000 (16GB)

For example, if you scroll in text editor, you will see where the load is.

The following screenshots were taken while I was scrolling in the text editor.

Running idea64.exe with GPU configs activated Here GPU is doing the painting work - and it is using too much GPU. Main reason why i disabled the above steps.

Running idea64.exe only CPU:

Scrolling again - Now CPU+GPU load in total is lesser when not using the GPU. This time the GPU load is not in idea64.exe, but in crss.exe and dwm.exe.

It spikes up form some percentage only - they use anyway the NVidia GPU.

Crashes I switched GPU off for Intellig2020.02 due performance reasons, but it also crashes on Laptop resume when monitor layout has changed:

1 Display -> 3xFullHD or 1Display to 2x4k and vice versa