cvs commit: src/sys/kern kern_spinlock.c src/sys/platform/vkernel/i386 cpu_regs.c src/sys/sys systm.h src/sys/platform/pc32/i386 machdep.c

[Simon 'corecode' Schubert]

Matthew Dillon wrote:
>   Log:
>   Implement an architecture call for contended spinlocks so the vkernel can
>   insert a usleep().

Very nice.  I've been meaning to do this.  We could use monitor/mwait on core2duo CPUs for power reduction for example (also when waiting for the mplock/scheduler changes in the idle loop).

cheers
  simon