Another Look At Intel's Lynnfield Linux Performance

Intel's system sped up a great deal with the IS.C test in NPB, by more than twice as fast, but fell back to our performance levels when Turbo/EIST were disabled.

The Stream memory performance results had not changed much throughout testing.

While we will end up publishing our own set of new Linux numbers when using an upgraded BIOS for the Intel P55 Kingsberg motherboard, based upon these Intel-provided numbers it shows that the Turbo Boost Technology should end up working and that the Core i5 750 is performing much better. The Core i7 870 should also improve similarly. With these newer numbers, they eliminate most of our concerns regarding the Intel P55 + Lynnfield CPUs on Linux. We would also like to thank Intel for sharing their Phoronix Test Suite numbers in demonstrating these performance differences.