From: Eduardo Habkost <ehabkost@redhat.com>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: "Radim Krčmář" <rkrcmar@redhat.com>,
"Marcelo Tosatti" <mtosatti@redhat.com>,
qemu-devel@nongnu.org, kvm@vger.kernel.org
Subject: Re: invtsc + migration + TSC scaling
Date: Mon, 17 Oct 2016 19:11:01 -0200 [thread overview]
Message-ID: <20161017211101.GD3275@thinpad.lan.raisama.net> (raw)
In-Reply-To: <72b8c6b3-f08a-735a-e283-99d0195dcf7d@redhat.com>
On Mon, Oct 17, 2016 at 06:24:38PM +0200, Paolo Bonzini wrote:
> On 17/10/2016 16:50, Radim Krčmář wrote:
> > 2016-10-17 07:47-0200, Marcelo Tosatti:
[...]
> >> since Linux guests use kvmclock and Windows guests use Hyper-V
> >> enlightenment, it should be fine to disable 2).
>
> ... and 1 too.
>
> We should also blacklist the TSC deadline timer when invtsc is not
> available.
You mean on the guest-side? On the host side, it would make
existing VMs refuse to run.
--
Eduardo
next prev parent reply other threads:[~2016-10-17 21:11 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-10-14 21:20 invtsc + migration + TSC scaling Eduardo Habkost
2016-10-17 9:47 ` Marcelo Tosatti
2016-10-17 14:50 ` Radim Krčmář
2016-10-17 16:24 ` Paolo Bonzini
2016-10-17 21:11 ` Eduardo Habkost [this message]
2016-10-17 23:58 ` Marcelo Tosatti
2016-10-18 13:41 ` Paolo Bonzini
2016-10-18 17:09 ` Marcelo Tosatti
2016-10-18 20:52 ` Radim Krčmář
2016-10-18 21:05 ` Eduardo Habkost
2016-10-19 13:27 ` Radim Krčmář
2016-10-19 13:55 ` Eduardo Habkost
2016-10-19 15:42 ` Radim Krčmář
2016-10-19 17:42 ` Eduardo Habkost
2016-10-18 13:48 ` Radim Krčmář
2016-10-18 13:36 ` Radim Krčmář
2016-10-18 13:38 ` Radim Krčmář
2016-10-17 17:20 ` Marcelo Tosatti
2016-10-18 13:27 ` Radim Krčmář
2016-10-18 9:04 ` [Qemu-devel] " Dr. David Alan Gilbert
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20161017211101.GD3275@thinpad.lan.raisama.net \
--to=ehabkost@redhat.com \
--cc=kvm@vger.kernel.org \
--cc=mtosatti@redhat.com \
--cc=pbonzini@redhat.com \
--cc=qemu-devel@nongnu.org \
--cc=rkrcmar@redhat.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).