Cursor 0.47.5 Using Lots of Resources ... Issue?

Hello,

I am a Cursor User currently using Cursor Pro with latest version 0.47.5 and since I got the update yesterday to the latest version , my cursor is using large amount of my computer’s resources … I can see using over 100mb/s of my SSD , around 10gb of RAM and 30% of my CPU , which is really high for an IDE … It’s starting to get laggy too when working on a project …

EDIT: Oh! And I have frequent crashes now too ... will edit to add the crash error msg when it happens ...

It wasn’t doing anything like that before the latest update …

Am I alone with this issue ?

My PC Specifications :

My Computer Details

Processor
Processor - AMD Ryzen 5 5500
Number of Cores - 12
Speed - 4.2 GHz

Memory
RAM - 32 GB
RAM Speed - 3200mt

Video Card
Video Card - NVIDIA GeForce GTX 1660 SUPER
Chipset - NVIDIA GeForce GTX 1660 SUPER
Manufacturer - Nvidia
Total Memory - 22 GB
Dedicated Memory - 6.0 GB
Driver Version - 32.0.15.7270
Vertex Shader Version - 6.0
Pixel Shader Version - 6.0

Operating System
Edition - Windows 11 Enterprise
Version - 24H2
OS build - 26100.3194
Experience - Windows Feature Experience Pack 1000.26100.48.0

BIOS
Manufacturer - American Megatrends International, LLC.
Model - B550 GAMING GEN3 (MS-7B86)
BIOS Version - P.91

Software
DirectX 11.0
.NET 4.8
Internet Explorer 11.1882.26100.0
Chrome 134.0.6998.89
Firefox 136.0.1

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Does your Cursor 0.47.5 have resources intensive issues ?
  • Yes
  • No
0 voters

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Thanks, Charles. :slightly_smiling_face:

Hey, the issue might be related to extensions. Check what’s happening in the Activity Monitor and also in the Process Explorer.

1 Like

I have looked at my Process Explorer and I can see that the ones using lots of ressources are the main windows for Cursor … My extensions arent using much …

Maybe too many chats in this project? or a huge file open and IDE struggles? (causes other users had)

Try opening another project and check if it happens as well.

Already using Specstory and cleared my chats … I can try another project and see I will comeback later to give a reply to what as happen when trying with another project… Thx :slight_smile:

1 Like

Wouldnt it be fun to have a @Cursor_Litmus :: command that did a dry run and check status against all extenstsions:

Give it a try:


ALSO -

Just fn ask the bot about your problem first and see whats up

Yeah but I dont have much extensions that the issue here … i got mainly some basic extensions but nothing covering AI stuff …

Here’s the answer, everyone.

I’ll preface this with the fact that I’ve been trying really hard not to bash Cursor recently. It is a great app, and it has saved me countless weeks of time… sadly, not anymore.

Here’s what I do daily now. Delete Cursor 100%. Install it clean (All Traces Removed.) Tell it no on all imports. Never install any plugins. After each message is sent, wait for the AI to finish, delete the chat, and start over.

Sad to say, this is the ONLY way it won’t use resources. I’ve been told multiple times now to try disabling plugins or clearing out chats. What is the point if that’s how we have to manage this? I don’t use Cursor to babysit it; I use it because it saves me time and makes my life easier, or it did.

Now I’m daily having to delete old copies of the app, try this version, oh that’s broken, what about this version, nope. Ok, let’s just go back to the most recent version; oh, but each message I send takes a good 10s before anything happens, or it sits there thinking and never doing anything. When it does work, context never seems to hold. It does a few tasks, then completely forgets what it was doing and then goes and builds some feature I asked for two hours ago, in a brand new file, in a brand new location, with new variable names, and totally ignores what it has already done. (What’s the point of the index, if it isn’t used?)

I am to the point of testing new platforms and services, this is wasting too much of my time and I can’t get anything done anymore.

2 Likes

When you uninstall the app, do you also clear the data directory (If you can find chat history/search through old chats, then the data was not cleared).

If you’re on non-privacy mode and can run:
cmd+shift+pDeveloper: Capture and Send Debugging Data, I can take a look at the debugging data and try to find a fix

I’m also clearing the data folders, yes. I’ve done it a few times, and I don’t really notice a difference between doing that and deleting the chats directly through the UI.

I’m unsure if this is 100% a Cursor issue or if something else with my workstation is contributing. I only have a few apps that cause issues, which are also electron-based. I’m not a fan of Electron; I seem to always have issues with apps that use it.

DM’d you with some of the Cursor Nightly links; we’ve updated to the most recent electron version there (previous electron versions have some known perf bugs), so you might have more luck with that version. It be great to know either way if it fixes the issues or not.

And, if you still see the issue, using cmd+shift+pDeveloper: Capture and Send Debugging Data would help a lot for debugging what’s wrong, thanks!

1 Like

Ive done the Capture and Send Debugging Data , where does the data goes ? I wanna share it here if possible … might help

Update here; One of the issues is with docs that get stuck into a bad state. If anyone is encountering issues, can you try going to Cursor SettingsFeaturesDocs and deleting the indexed docs? Especially if they’re stuck in a yello/maintaining/updating state

2 Likes

This was my issue. Thanks to Zach, we found it fairly quickly. I didn’t even consider an indexing issue as the culprit.

I had one stuck on indexing, and that’s what was consuming all my resources and causing the lag spikes with Cursor.

My Docs are all fine and Indexed … This isnt my case …

DM’d you; gonna also look at the debugging data dump tomorrow.

windows 10, cursor ide 0.47.8, 10 basic very popular (1milion+) extensions

cursor’s disk usage, network usage, cpu usage normal levels.
ram usage
at start eats 1.4gb ram
after 30 min chat 3.3gb ram

before cursor i used VSCode with sourcegraph-cody ai.
at some point in august/september vscode+sourcegraph-cody also had a massive ram usage issue similar to cursor’s now issue. it got resolved after a month.

after restarting cursor RAM usage usually drops to 1.4-1.6GB but sometimes after restart it starts at 2.8GB

Hi, DM’d you also

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