On 8/3/07 08:01, "Ingo Molnar" [off-list ref] wrote:

you are obsessed with avoiding a hypercall, but why? Granted it's slow
especially on things like SVN/VMX, but it's not fundamentally slow. We
definitely do not want to design our whole APIs and abstractions around
the temporary notion that 'hypercalls are slow'. I'd expect hypercalls
to be put into silicon just as much as SYSENTER was put into silicon.

If syscalls are already so fast, why does Linux have vgettimeofday()?

 -- Keir