On Wed, 16 Aug 2017, Ingo Molnar wrote:
> And we'd do this for _EVERY_ function call in the kernel. That kind of crap is
> totally unacceptable.
Ahh finally a limit is in sight as to how much security hardening etc can
reduce kernel performance.
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On Tue, 18 Jul 2017, Thomas Garnier wrote:
> Performance/Size impact:
> Hackbench (50% and 1600% loads):
> - PIE enabled: 7% to 8% on half load, 10% on heavy load.
> slab_test (average of 10 runs):
> - PIE enabled: 3% to 4%
> Kernbench (average of 10 Half and Optimal runs):
> - PIE enabled: 5%
On Thu, 17 Aug 2017, Boris Lukashev wrote:
> Is the expectation then to have security functions also decrease size
> and operational latency? Seems a bit unrealistic if so.
> 1-2% performance hit on systems which have become at least several
> hundred % faster over recent years is not a
