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[Plasmatic]

When I first load up the game its rock solid at 60 FPS and 57-65% Idle.

But somehow after a very large and extended battle, the game slows to 17 FPS and 0% Idle.

If I save the game, restart and load back in, its right back up to 60 FPS and 57-65% Idle, until a little while and a large fight again.
(large fight being my 2 carriers vs 5-10 ships)

Is this a memory leak or whats going on? I can't really see anything in the logs.

Could it be a mod that is causing it?

[Wispborne]

It's caused by using mods in general, regardless of your PC specs.
The only known fix is switching to JRE 8.

Guide here:
https://fractalsoftworks.com/forum/index.php?topic=25974.0

[Plasmatic]

Thank you, I will try that, I have downloaded Java 8 on my computer, but I guess Starsector uses its own Java regardless.

[Thaago]

Does anyone know why this happens to some people and not others? I've never had it happen and while I don't play with heavy mods, I do with like a dozen plus libraries at times. I don't use graphicslib except when I have to for a faction and in that case I switch its shaders etc off.

[Ruddygreat]

Does anyone know why this happens to some people and not others? I've never had it happen and while I don't play with heavy mods, I do with like a dozen plus libraries at times. I don't use graphicslib except when I have to for a faction and in that case I switch its shaders etc off.

(quoting from memory of something DR said in discord)

iirc it only happens when you're running with glib shaders enabled because it loads so many extra sprites that the java 7 garbage collector kinda chokes and dies on them
you can temporarily stop the slowdown by using the "toggle shaders" hotkey in graphicslib, but it'll just come back when you turn them back on

[Thaago]

Makes sense!

[SafariJohn]

I have encountered this at least once. Dum-dum that I am, I did the reload fix before I could remember "Hey, I am a programmer! I could profile this!"

[Plasmatic]

Does anyone know why this happens to some people and not others? I've never had it happen and while I don't play with heavy mods, I do with like a dozen plus libraries at times. I don't use graphicslib except when I have to for a faction and in that case I switch its shaders etc off.

(quoting from memory of something DR said in discord)

iirc it only happens when you're running with glib shaders enabled because it loads so many extra sprites that the java 7 garbage collector kinda chokes and dies on them
you can temporarily stop the slowdown by using the "toggle shaders" hotkey in graphicslib, but it'll just come back when you turn them back on

I've updated to Java 8, and while it has absolutely improved, a long session will still gradually slow down more and more still, but instead of having to restart every 10-30 min (depending on combat) I can play fine for a couple hours before its even noticably below 60 fps.

So I'd say it's more or less fixed.

[Wyvern]

I decided to test this - was curious if going to java 8 would make scaling work properly without having to go fullscreen - and the provided instructions for installing jre8 do not work with Starsector on mac.

There is no 'jre' folder, the closest equivalent seems to be 'Home'.

I downloaded jre-8u311-macosx-x64.tar.gz from oracle; this did decompress to a folder structure with what appeared to be an equivalent 'Home' folder to it - but substituting that in for Starsector's 'Home' folder just results in "Error: A JNI error has occurred" and "java.lang.ClassFormatError: Illegal field name "null.class" in class com/fs/starfarer/StarfarerLauncher".

[Micah_Lamar]

Had the same problem, removed/disabled Starship Legends, that fixed it.

[Brainwright]

I had the same problem until I did the Java 8 unofficial patch via https://fractalsoftworks.com/forum/index.php?topic=19879.msg355617#msg355617