3 ms·

Is that with spectre/meltdown/etc protection on?

• blattimwind 7y ago
  These are VMs, the hosts have to run with these mitigations enabled.
• api 7y ago
  Don't know, but for pure numeric code these mitigations are not (AFAIK) that expensive. The main cost is incurred for any code that is syscall-heavy like I/O.
  • dilyevsky 7y ago
    Pure numeric benches aren’t very useful irl tho. My hunch is with security patches single core will be very comparable
• imajoo 7y ago
  AWS patched their hosts back in 2018 which caused a huge shitstorm in terms of performance lost across various workloads..so yes. https://blog.appoptics.com/visualizing-meltdown-aws/ https://blog.appoptics.com/visualizing-meltdown-aws/
  • dilyevsky 7y ago
    Afaik amd patches aren’t as penalizing as Intel ones. I have no idea if ^^^ refers to bare metal, bare metal w/ patches or cloud env (unlikely) hence the question.
    • imajoo 7y ago
      The link above is specific to AWS -- hence, "Visualizing Meltdown on AWS" as their title.