All of lore.kernel.org
 help / color / mirror / Atom feed
From: Anthony Liguori <anthony@codemonkey.ws>
To: AelMalinka@gmail.com
Cc: Mailing Lists <kvm@vger.kernel.org>
Subject: Re: kvm-83 write performance raw
Date: Mon, 02 Mar 2009 15:22:13 -0600	[thread overview]
Message-ID: <49AC4E05.4030805@codemonkey.ws> (raw)
In-Reply-To: <aa2a0fc0903021239uc8d5a54haafb30fc71130b8e@mail.gmail.com>

Malinka Rellikwodahs wrote:
>>>
>>> What version of kvm is this?  Is it kvm-68?  You'll have better luck with
>>> something newer than that.
>>>       
>
> kvm-83 is the one with the problem, kvm-68 is working correctly.
>   

kvm-68 and qcow2 both use cache=writeback by default which is less safe 
than cache=writethrough which is now the default.

But performance shouldn't be as bad as your seeing.

Regards,

Anthony Liguori


  reply	other threads:[~2009-03-02 21:22 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-03-02 20:11 kvm-83 write performance raw Malinka Rellikwodahs
2009-03-02 20:35 ` Anthony Liguori
2009-03-02 20:37   ` Malinka Rellikwodahs
2009-03-02 20:39     ` Malinka Rellikwodahs
2009-03-02 21:22       ` Anthony Liguori [this message]
2009-03-02 21:39         ` Malinka Rellikwodahs
2009-03-02 22:21           ` Anthony Liguori
2009-03-09 15:09           ` Avi Kivity
2009-03-02 20:53 ` Mark van Walraven
2009-03-02 21:00   ` Malinka Rellikwodahs
2009-03-03 15:13     ` Nikola Ciprich
     [not found]       ` <aa2a0fc0903051110q528da32ek17b0f6468d0f15ff@mail.gmail.com>
2009-03-05 19:11         ` Fwd: " Malinka Rellikwodahs
2009-03-06  0:14           ` Malinka Rellikwodahs
2009-03-09 15:40           ` Fwd: " Nikola Ciprich
2009-03-04 22:28   ` Paolo Pedaletti
2009-03-05  2:09     ` Mark van Walraven

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=49AC4E05.4030805@codemonkey.ws \
    --to=anthony@codemonkey.ws \
    --cc=AelMalinka@gmail.com \
    --cc=kvm@vger.kernel.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.