From: Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com>
To: Sander Eikelenboom <linux@eikelenboom.it>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Kconfig help entry for CONFIG_PARAVIRT_SPINLOCK
Date: Wed, 16 Oct 2013 08:29:40 +0530 [thread overview]
Message-ID: <525E011C.6010309@linux.vnet.ibm.com> (raw)
In-Reply-To: <932951750.20131015234558@eikelenboom.it>
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.
prev parent reply other threads:[~2013-10-16 2:59 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-15 21:45 Kconfig help entry for CONFIG_PARAVIRT_SPINLOCK Sander Eikelenboom
2013-10-16 2:59 ` Raghavendra K T [this message]
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