Benchmarking The Performance Impact Of Speculative Store Bypass Disable For Spectre V4 On Intel Core i7
Unlike with the other Spectre and Meltdown mitigation, the I/O performance wasn't really affected with SSBD. Only the CompileBench workload in particular appeared to take a small performance hit with SSBD on.
The Golang performance was slightly lower with SSBD being unconditionally enabled.
The LuaJIT performance also took a small performance hit.
Though outside of managed code environments, having SSBD enabled fortunately didn't impair the performance in any meaningful manner.