All of lore.kernel.org
 help / color / mirror / Atom feed
From: "Benoît Canet" <benoit.canet@irqsave.net>
To: qemu-devel@nongnu.org
Cc: pbonzini@redhat.com, gleb@redhat.com
Subject: [Qemu-devel] KVM guest cpu L3 cache and cpufreq
Date: Tue, 13 Aug 2013 20:17:13 +0200	[thread overview]
Message-ID: <20130813181713.GA5204@irqsave.net> (raw)


Hi,

I noticed that the l3 cache size of a guest /proc/cpuinfo is not the same as
the l3 cache size of the host.

I did not found any references to this in the qemu and KVM code.

Is the size of the guest L3 cache fixed in hardware ?

Can a patch be written to set it ?

Similarly I noticed that the frequency in the guest was not reflecting the
frequency scaling of the host.

Could anything be done for this ? 

Best regards

Benoît

             reply	other threads:[~2013-08-13 18:15 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-08-13 18:17 Benoît Canet [this message]
2013-08-26 12:40 ` [Qemu-devel] KVM guest cpu L3 cache and cpufreq Gleb Natapov
2013-08-26 12:49   ` Benoît Canet
2013-08-26 14:33     ` Gleb Natapov
2013-08-26 16:45       ` Benoît Canet
2013-08-26 20:47         ` Eduardo Habkost
2013-08-27 13:18           ` Benoît Canet
2013-08-27 13:17             ` Gleb Natapov
2013-08-27 13:20               ` Gleb Natapov
2013-08-27 13:35                 ` Benoît Canet
2013-08-27 13:39                   ` Gleb Natapov
2013-08-27 13:37             ` Eduardo Habkost

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=20130813181713.GA5204@irqsave.net \
    --to=benoit.canet@irqsave.net \
    --cc=gleb@redhat.com \
    --cc=pbonzini@redhat.com \
    --cc=qemu-devel@nongnu.org \
    /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.