Mac Console - High CPU usage due to "Error in class 'SourceLWJGL OpenAL'" Messages

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dlord

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Jul 29, 2019
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I'm not sure where to post this, so please feel free to move this to the appropriate forum when needed.

I play on a server, and I've been getting high CPU and very slow gameplay with FTB Unleashed. After investigating for a bit, I found that my local JVM processes for Minecraft and the Console are both at peak. It's normal for Minecraft to consume a lot of CPU time, but the console? Something's wrong.

Long story short, I found that the console was outputing a ton of messages like this whenever you play:

2013-09-18 19:11:59 [INFO] [STDOUT] Error in class 'SourceLWJGL OpenAL'
2013-09-18 19:11:59 [INFO] [STDOUT] Channel null in method 'stop'

A sample dump of the log can be found here: http://pastebin.com/JYfQ8DBy
I've tried hiding the console via the launcher settings, but results are still the same.
As a workaround, I set the console to only show messages from the launcher. You can do this either before starting the game, or after Minecraft loads.
 
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