Re: [linus:master] [x86/bugs] a3af84b0fa: stress-ng.seccomp.ops_per_sec 95.7% regression

[Dave Hansen]

On 11/2/26 02:43, Chengfeng Lin wrote:
> I found another workload affected by a3af84b0fa00 while running MMTests:
> Redis ZPOPMIN throughput on v7.3 is about 13% lower than on v7.1.3.
> Unlike the repeated filter loading discussed here, the slowdown remains
> after the tasks that triggered the predictor flush (IBPB) have exited.
> Can this cost be reduced while preserving the security protection?

I'm puzzled by this result. Any chance you could collect some profiles
and see where the difference is?