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

[Dave Hansen]

On 8/18/26 23:20, kernel test robot wrote:
> kernel test robot noticed a 95.7% regression of stress-ng.seccomp.ops_per_sec on:

One one level this is a "vulnerability mitigations cause performance
loss, news at 11" kind of thing. Like, Duh!

The microbenchmark here does seem to be a pretty worse-case scenario
where it sits in a loop loading and running a seccomp filter program. In
other words, it's just about as pathological of a test as you can have.

I think Pawan had some more ideas about ways to optimize this. Is there
any appetite for that? Or is the test just too synthetic to worry about?