How to *attempt* to get Unity to use more Cores on a heavily Multi-core system.

unity-multicore-tweaks.md

Unity Multicore Tweaks

This guide gives you some tweaks you can try in boot.config inside your Unity Game to get some more performance out of your Multi-core system.

Performance Flags to Try:

• gc-max-time-slice=3

  • This increases the slice of time Unity's Garbage Collector is allowed to spend on a single frame. Increasing this value increases the amount of time until the Garbage Collector is run. Setting this helps limit the impact of garbage collection on framerate by specifying a maximum time that the garbage collector is allowed to consume during a frame. If the garbage collection process exceeds this time limit, it may be interupted, and the remaining work may be moved to the next frame. Value is in Milliseconds.

• gfx-enable-gfx-jobs=1

  • Enables Standard Graphics Jobs. Enabling this, Unity will attempt to use multiple CPU cores for certain graphics tasks, which can result in better performance.

• gfx-enable-native-gfx-jobs=1

  • Explicitly enables the use of Native Graphics Jobs. Native Graphics Jobs are a more advanced version of Graphics Jobs, designed to provide even better multicore performance.

Quick Copy-Paste Final Result.

# boot.config
gfx-enable-gfx-jobs=1
gfx-enable-native-gfx-jobs=1
wait-for-native-debugger=0
hdr-display-enabled=0
single-instance=
gc-max-time-slice=3

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