Intel's One Line Of Linux Code For Speeding-Up Sapphire Rapids On Ubuntu

The video encoding benchmarks tend to be very sensitive to CPU frequency scaling governor changes and here with the stock Linux 6.3 kernel using the P-State powersave governor is now exhibiting performance much closer to the performance governor.

While the CPU power use increased quicker with this change, on a performance-per-Watt basis it's an improvement over the prior (slower) performance.

The video encoding benchmarks on Sapphire Rapids were in much better shape now on Ubuntu Linux with its powersave default.

The SVT-AV1 encoder benchmarks were also showing a significant improvement from this one line of code added to the kernel but still not to the levels seen with the performance governor.

The uvg266 and VVenC H.266/VVC benchmarks also enjoyed some nice performance improvements with Linux 6.3 mainline thanks to this P-State change but using the performance governor was still delivering the strongest performance on these two Xeon Platinum 8490H processors.