Reduce CPU usage when accessing i2c smbus devices on windows (AMD) (!1015) · Merge requests · Adam Honse / OpenRGB

Openrgb had high CPU usage when communicating with i2c devices on windows especially when running effects like the ones in OpenRGBEffectsPlugin.

Issue was reported in #1293.

Adding a 1ms delay in the i2c_smbus_piix4.cpp transaction wait seem to fix the issue (same delay is used in the linux i2c-piix4.c)

Before

After

Edited Jan 16, 2022 by Shady Nawara

Reduce CPU usage when accessing i2c smbus devices on windows (AMD)