From: Olaf Hering <olaf@aepfle.de>
To: xen-devel@lists.xen.org, Andrew Cooper <andrew.cooper3@citrix.com>
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 Marczykowski-Górecki" <marmarek@invisiblethingslab.com>,
"Julien Grall" <julien.grall@arm.com>,
"Jan Beulich" <jbeulich@suse.com>
Subject: Re: [PATCH v9] new config option vtsc_tolerance_khz to avoid TSC emulation
Date: Wed, 1 Aug 2018 18:17:47 +0200 [thread overview]
Message-ID: <20180801181747.170405d8.olaf@aepfle.de> (raw)
In-Reply-To: <20180626191113.2d8e6876.olaf@aepfle.de>
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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=default. Without such option each TSC access from
> > domU will be emulated, which causes a significant perfomance drop for
> > workloads that make use of rdtsc.
> 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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next prev parent reply other threads:[~2018-08-01 16:17 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-07 13:08 [PATCH v9] new config option vtsc_tolerance_khz to avoid TSC emulation Olaf Hering
2018-06-07 13:31 ` Jan Beulich
2018-06-07 13:47 ` Olaf Hering
2018-06-07 14:44 ` Jan Beulich
2018-06-07 14:49 ` Olaf Hering
2018-06-07 14:55 ` Jan Beulich
2018-06-07 21:05 ` Olaf Hering
2018-06-26 17:11 ` Olaf Hering
2018-08-01 16:17 ` Olaf Hering [this message]
2018-09-13 7:39 ` Olaf Hering
2018-09-28 13:50 ` Olaf Hering
2018-10-01 10:52 ` Ian Jackson
2018-10-01 11:25 ` Jan Beulich
2018-10-01 13:38 ` George Dunlap
2018-10-01 14:00 ` Jan Beulich
2018-10-01 14:25 ` George Dunlap
2018-10-01 16:01 ` Wei Liu
2018-10-01 12:39 ` Andrew Cooper
2018-10-01 13:24 ` [PATCH v9] new config option vtsc_tolerance_khz to avoid TSC emulation [and 1 more messages] Ian Jackson
2018-10-01 13:58 ` Andrew Cooper
2018-10-01 13:29 ` [PATCH v9] new config option vtsc_tolerance_khz to avoid TSC emulation Jan Beulich
2018-10-01 15:17 ` Andrew Cooper
2018-10-01 15:28 ` Jan Beulich
2018-10-09 16:42 ` Olaf Hering
2018-11-29 13:21 ` Olaf Hering
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