* Jonas Bulow <[EMAIL PROTECTED]> [000811 10:45] wrote:
> Alfred Perlstein wrote:
> > Yes. :) When FreeBSD gets scheduler activations you'll be able to change
> > to a single threaded process that will have excellent performance, the
> > scheduler activations are just around the corner.
>
> Can you explain what scheduler activations are?
Please CC.
schedulder activations are like 'LWP on-demand' a really simplified
explanation would be shared address space fork that only happens when
you block in certain parts of the kernel, like during disk/io.
the problem with normal LWP is that if you're going to do any sort
of disk IO you really want an LWP _per_ disk bound thread otherwise
you risk blocking on disk IO inside the kernel, scheduler activations
make sure you almost never block as well as making it unnecessary
to 'pre-allocate' LWP contexts to avoid such problems.
--
-Alfred Perlstein - [[EMAIL PROTECTED]|[EMAIL PROTECTED]]
"I have the heart of a child; I keep it in a jar on my desk."
To Unsubscribe: send mail to [EMAIL PROTECTED]
with "unsubscribe freebsd-hackers" in the body of the message
