6.0 and "options PREEMPTION"
Doug Poland
doug at polands.org
Fri Oct 28 04:08:16 PDT 2005
Hello,
I'm confused about 6.0 and the kernel setting "options PREEMPTION". I
was reading an article on OS News:
http://www.osnews.com/story.php?news_id=10951
in which Robert Watson stated,
One of the other nice benefits to the SMPVFS work is that
with our fully preemptive 6.x kernel, not holding the Giant
lock over the file system code lets the file system code not
only preempt lower precedence kernel threads, such as
background crypto operations or file system operations, but be
preempted by more timing critical code, such as sound card
interrupts, network I/O, and so on.
Does this mean that options PREEMPTION is assumed in 6.0? If not, could
someone explain or point me to some docs that will help me understand.
--
Regards,
Doug
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