Re: [PATCH] An RCU for SMP with a single CPU garbage collector
From: Joe Korty
Date: Mon Mar 07 2011 - 16:16:20 EST
On Mon, Mar 07, 2011 at 04:01:57PM -0500, Paul E. McKenney wrote:
> Interesting!
>
> But I would really prefer leveraging the existing RCU implementations
> to the extent possible. Are the user-dedicated CPUs able to invoke
> system calls? If so, something like Frederic's approach should permit
> the existing RCU implementations to operate normally. If not, what is
> doing the RCU read-side critical sections on the dedicated CPUs?
>
> Thanx, Paul
I haven't seen Frederic's patch. Sorry I missed it!
It might have saved a bit of work...
I thought about the system call approach but rejected it.
Some (maybe many) customers needing dedicated CPUs will
have apps that never make any system calls at all.
Regards,
Joe
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