linux-kernel - Re: [Xen-devel] [PATCH] xen-time: decreasing the rating of the xen clocksource below that of the tsc clocksource for dom0's

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Date:	Tue, 20 Jan 2015 19:21:01 +0000
From:	David Vrabel <david.vrabel@...rix.com>
To:	Imre Palik <imrep.amz@...il.com>, <xen-devel@...ts.xenproject.org>,
	David Vrabel <david.vrabel@...rix.com>
CC:	"Palik, Imre" <imrep@...zon.de>, <x86@...nel.org>,
	<linux-kernel@...r.kernel.org>, Ingo Molnar <mingo@...hat.com>,
	Anthony Liguori <aliguori@...zon.com>,
	"H. Peter Anvin" <hpa@...or.com>,
	Boris Ostrovsky <boris.ostrovsky@...cle.com>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [Xen-devel] [PATCH] xen-time: decreasing the rating of the xen
 clocksource below that of the tsc clocksource for dom0's

On 13/01/15 08:14, Imre Palik wrote:
> From: "Palik, Imre" <imrep@...zon.de>
> 
> In Dom0's the use of the TSC clocksource (whenever it is stable enough to
> be used) instead of the Xen clocksource should not cause any issues, as
> Dom0 VMs never live-migrated.  The TSC clocksource is somewhat more
> efficient than the Xen paravirtualised clocksource, thus it should have
> higher rating.
> 
> This patch decreases the rating of the Xen clocksource in Dom0s to 275.
> Which is half-way between the rating of the TSC clocksource (300) and the
> hpet clocksource (250).

Applied to devel/for-linus-3.20, thanks.

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