From: Joerg Roedel <joro@8bytes.org>
To: Avi Kivity <avi@redhat.com>
Cc: "Zhai, Edwin" <edwin.zhai@intel.com>, Ingo Molnar <mingo@elte.hu>,
"kvm@vger.kernel.org" <kvm@vger.kernel.org>
Subject: Re: [PATCH] [RESEND] KVM:VMX: Add support for Pause-Loop Exiting
Date: Fri, 25 Sep 2009 22:43:39 +0200 [thread overview]
Message-ID: <20090925204339.GA29634@8bytes.org> (raw)
In-Reply-To: <4ABA2C22.7020000@redhat.com>
On Wed, Sep 23, 2009 at 05:09:38PM +0300, Avi Kivity wrote:
>
> We haven't sorted out what is the correct thing to do here. I think we
> should go for a directed yield, but until we have it, you can use
> hrtimers to sleep for 100 microseconds and hope the holding vcpu will
> get scheduled. Even if it doesn't, we're only wasting a few percent cpu
> time instead of spinning.
How do you plan to find out to which vcpu thread the current thread
should yield?
Joerg
next prev parent reply other threads:[~2009-09-25 20:43 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-09-23 14:04 [PATCH] [RESEND] KVM:VMX: Add support for Pause-Loop Exiting Zhai, Edwin
2009-09-23 14:09 ` Avi Kivity
2009-09-25 1:11 ` Zhai, Edwin
2009-09-27 8:28 ` Avi Kivity
2009-09-28 9:33 ` Zhai, Edwin
2009-09-29 12:05 ` Zhai, Edwin
2009-09-29 13:34 ` Avi Kivity
2009-09-30 1:01 ` Zhai, Edwin
2009-09-30 6:28 ` Avi Kivity
2009-09-30 16:22 ` Marcelo Tosatti
2009-10-02 18:28 ` Marcelo Tosatti
2009-10-09 10:03 ` Zhai, Edwin
2009-10-11 15:34 ` Avi Kivity
2009-10-12 19:13 ` Marcelo Tosatti
2009-09-25 20:43 ` Joerg Roedel [this message]
2009-09-27 8:31 ` Avi Kivity
2009-09-27 13:46 ` Joerg Roedel
2009-09-27 13:47 ` Avi Kivity
2009-09-27 14:07 ` Joerg Roedel
2009-09-27 14:18 ` Avi Kivity
2009-09-27 14:53 ` Joerg Roedel
2009-09-29 16:46 ` Avi Kivity
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=20090925204339.GA29634@8bytes.org \
--to=joro@8bytes.org \
--cc=avi@redhat.com \
--cc=edwin.zhai@intel.com \
--cc=kvm@vger.kernel.org \
--cc=mingo@elte.hu \
/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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.