Comment by nine_k
2 years ago
Are there any performance implications on such traps on x64 or ARM?
IIRC, PDP11 and VAX used traps as the way to call the supervisor, and it was pretty cheap.
2 years ago
Are there any performance implications on such traps on x64 or ARM?
IIRC, PDP11 and VAX used traps as the way to call the supervisor, and it was pretty cheap.
You're asking the wrong questions of OpenBSD :)
Fair! :)
But interesting nevertheless.
I think ARM (or at least ARM64) does the trap thing too.