From mboxrd@z Thu Jan  1 00:00:00 1970
From: Olaf Hering <olaf@aepfle.de>
Subject: Re: [PATCH v9] new config option vtsc_tolerance_khz to
 avoid TSC emulation
Date: Wed, 1 Aug 2018 18:17:47 +0200
Message-ID: <20180801181747.170405d8.olaf@aepfle.de>
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 <20180626191113.2d8e6876.olaf@aepfle.de>
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Cc: Stefano Stabellini <sstabellini@kernel.org>, Wei Liu <wei.liu2@citrix.com>, George Dunlap <George.Dunlap@eu.citrix.com>, Tim Deegan <tim@xen.org>, Ian Jackson <ian.jackson@eu.citrix.com>, Marek =?UTF-8?B?TWFyY3p5a293c2tpLUfDs3JlY2tp?= <marmarek@invisiblethingslab.com>, Julien Grall <julien.grall@arm.com>, Jan Beulich <jbeulich@suse.com>
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Am Tue, 26 Jun 2018 19:11:13 +0200
schrieb Olaf Hering <olaf@aepfle.de>:

> Am Thu,  7 Jun 2018 15:08:29 +0200
> schrieb Olaf Hering <olaf@aepfle.de>:
> > Add an option to control when vTSC emulation will be activated for a
> > domU with tsc_mode=3Ddefault. Without such option each TSC access from
> > domU will be emulated, which causes a significant perfomance drop for
> > workloads that make use of rdtsc. =20
> Andrew,
> do you have any comments on this patch/approach?


Andrew,

any comments on this patch?

https://lists.xen.org/archives/html/xen-devel/2018-06/msg00398.html

Olaf

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