Re: RCU related performance regression in 3.3

[Pascal Chapperon]

Le 01/05/2012 17:45, Paul E. McKenney a Ãcrit :

> Here is my RCU_FAST_NO_HZ patch stack on top of v3.4-rc4.
>
> Or you can pull branch fnh.2012.05.01a from:
>
> 	git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git
>
> 							Thanx, Paul
I applied your global patch on top of v3.4-rc4. But the slowdown is
worse than before : boot sequence took 80s instead 20-30s (12s for
initramfs instead of 2s).

I'll send you rcu tracing log in a second mail.

Pascal

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