topic Re: Ridiculous RAM usage. Memory Leak? in Fusion Support Forum

Ridiculous RAM usage. Memory Leak?

gregF29ZL — Wed, 05 Jan 2022 17:37:11 GMT

I'm getting extraordinarily high RAM usage from Fusion 360 that's bottle necking my entire system. Regardless of the size or complexity I'm working on, Fusion just gobbles up as much as it can. Just having the program open and idle on a brand new project is consuming about 5-7GB.

Is there a memory leak somewhere? I can upgrade to 32GB, but this seems like a software issue.

Specs:

-Windows 10 Pro
-AMD Ryzen 5 5600X

-GT 1030 (2gb)

-16GB 3600mHz

-Fusion Ver. 2.0.11894

Re: Ridiculous RAM usage. Memory Leak?

johnsonshiue — Fri, 25 Mar 2022 20:09:49 GMT

Hi Greg,

The behavior you described does not sound right. However, it is not yet actionable. Memory consumption by an app is a very big topic. Many things happen behind the scene. Increase in memory consumption does not necessarily equate to memory leak (it could be). In many cases, the memory may be reused dynamically.

One thing you may try to identify a particular type of leak is called GDI objects leak. Windows caps the number of GDI objects to 10K for a given application (this does not apply to MacOS for apparent reasons). You can observe GDI statistics in Task Manager -> Detail -> right-click on a column header -> Select Columns -> check "GDI."

When you start up a command with a UI elements, GDI objects get created. When you close the command dialog, the objects get released. If the numbers keep going up when you repeat the commands, something is wrong. Please share any workflow leading to significant increase in GDI objects.

Many thanks!

Re: Ridiculous RAM usage. Memory Leak?

HughesTooling — Thu, 24 Mar 2022 17:41:36 GMT

Why is there a 13 in brackets after Fusion's name, normally this means you have 13 instances running. This seems a bit odd, any idea how you've ended up in that state? If you reboot your computer and start Fusion does it still show a number in brackets. I only use Win8.1 so may be different on Win10?

Mark

Re: Ridiculous RAM usage. Memory Leak?

jhackney1972 — Thu, 24 Mar 2022 18:26:08 GMT

Mark,

Mark, if I expand the Fusion 360 entry, in my Task Manager, you will see all the sub-applications it is running. This is the number you see after the entry. If you are using Windows, open the Task Manager and you will see similar entries.

Re: Ridiculous RAM usage. Memory Leak?

HughesTooling — Thu, 24 Mar 2022 18:36:07 GMT

@jhackney1972 Must be a Win10 thing, with Win8.1 you only get a number if there are several instances running.