jworrel

Update: I just benchmarked the same machine with BIOS 1.8.2 installed (Spectre variants 2, 3a and 4 all patched) Dell OptiPlex 3040 Intel Core i5 6500, 8GB RAM, 256GB SSD Windows 10 Pro 1803 / 17134.345 (2018-10 Cumulative patch installed) I am seeing an additional ~20% performance drop in OS Calls / Second with only the Meltdown patch enabled on BIOS 1.8.2. Spectre patch performance remains the same.

I just benchmarked on the following machine: Dell OptiPlex 3040 (BIOS 1.6.1 / Spectre variant 2 patched only, not 3a or 4) Intel Core i5 6500, 8GB RAM, 256GB SSD Windows 10 Pro 1803 / 17134.345 (2018-10 Cumulative patch installed) I am seeing an 87% performance drop in OS Calls / Second with both Spectre and Meltdown patches enabled.