Re: [PATCH RFC 0/4] Paravirtual spinlocks

[Ingo Molnar]

* Jeremy Fitzhardinge <jeremy@xxxxxxxx> wrote:

> My experiments show that using a Xen-specific lock helps guest 
> performance a bit (reduction in elapsed and system time in a kernbench 
> run), but most significantly, reduces overall physical CPU consumption 
> by 10%, and so increases overall system scalability.

that's rather impressive and looks nice, considering the fairly low 
impact.

as there were no fundamental objections in this thread i've created a 
tip/x86/paravirt-spinlocks topic branch for these patches and started 
testing them.

i based the topic branch on tip/xen-64bit, so you should be able to get 
the latest code by doing:

  git-merge tip/x86/paravirt-spinlocks

on tip/master.

	Ingo
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/