linux-kernel - Re: Kconfig help entry for CONFIG_PARAVIRT

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Date:	Wed, 16 Oct 2013 08:29:40 +0530
From:	Raghavendra K T <raghavendra.kt@...ux.vnet.ibm.com>
To:	Sander Eikelenboom <linux@...elenboom.it>
CC:	linux-kernel@...r.kernel.org
Subject: Re: Kconfig help entry for CONFIG_PARAVIRT_SPINLOCK

On 10/16/2013 03:15 AM, Sander Eikelenboom wrote:
> Hi Raghavendra,
>
> Since the ticketlock series have landed in this mergewindow (thanks :-) ) the
> help accompanying the Kconfig entry doesn't seem to reflect the current state well.
>
> - Wasn't the whole purpose of the ticketlock series to mitigate this 5% performance hit to something
>    far less, so distro kernels could enable this for their normal kernels ?
>    I don't have the exact performance figures though.
>
> - Perhaps the suggestion to enable this for supported hypervisors (Xen and KVM ?) could be added ?

You are right. Thanks. I 'll send the patch to change the config text
soon.


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