cvs commit: src/sys/conf options.i386 src/sys/i386/i386 machdep.c mp_machdep.c pmap.c swtch.s src/sys/i386/include md_var.h pmap.h smp.h src/sys/i386/isa apic_vector.s intr_machdep.h src/sys/kern kern_switch.c kern_synch.c kern_thr.c kern_thread.c subr_witness.c ...

[Peter Wemm]

Peter Wemm wrote:
>   Log:
>   Commit a partial lazy thread switch mechanism for i386.

I'd been wanting to do this for ages, but Jake implemented it on the
sparc64 a while ago now and he kinda shamed me into doing it. :-)

The main difference is that sparc64 doesn't have to go to the trouble of
intercepting the pmap_release() since the VM hardware is different and it
doesn't have to worry about a potentially borrowed page directory getting
bzero()'ed.

Cheers,
-Peter
--
Peter Wemm - peter at wemm.org; peter at FreeBSD.org; peter at yahoo-inc.com
"All of this is for nothing if we don't go to the stars" - JMS/B5