From: Paolo Bonzini <pbonzini@redhat.com>
To: Alexander Graf <agraf@suse.de>
Cc: Kevin Wolf <kwolf@redhat.com>,
Anthony Liguori <anthony@codemonkey.ws>,
Jason Baron <jbaron@redhat.com>,
Markus Armbruster <armbru@redhat.com>,
qemu-devel@nongnu.org, Gerd Hoffmann <kraxel@redhat.com>,
Stefan Hajnoczi <stefanha@redhat.com>
Subject: Re: [Qemu-devel] On block interface types in general, IF_AHCI in particular
Date: Wed, 31 Oct 2012 15:46:05 +0100 [thread overview]
Message-ID: <509139AD.3000207@redhat.com> (raw)
In-Reply-To: <9D91D287-B449-49D9-BEEA-DDBF291EB9B9@suse.de>
Il 31/10/2012 15:43, Alexander Graf ha scritto:
>
> On 31.10.2012, at 15:40, Paolo Bonzini wrote:
>
>> Il 31/10/2012 15:20, Markus Armbruster ha scritto:
>>> One more thing: on a *major* upgrade, I'd rather deal with
>>> immediately obvious breakage (does not boot) than rotten
>>> performance.
>>>
>>> If we make "q35 with compat IDE" the default, we'll have to tell
>>> users many, many times not to use the default :(
>>
>> Well, compat IDE is not on the same league as writethrough for bad
>> performance, and virtio is anyway the better choice (and not
>> available just with a different machine type).
>
> Are you seriously considering to carry that IDE legacy around simply
> because we are too dumb to create working command line options? AHCI
> gets you at least parallel disk access, so in most cases it's a lot
> more sane than IDE.
What's wrong with "-M q35" (which would go along with "-M piix" for
absolute legacy)?
I'm just saying that the default machine type ("-M pc") should boot
Windows XP.
Paolo
next prev parent reply other threads:[~2012-10-31 14:46 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-30 14:43 [Qemu-devel] On block interface types in general, IF_AHCI in particular Markus Armbruster
2012-10-30 15:16 ` Jason Baron
2012-10-30 16:31 ` Paolo Bonzini
2012-10-30 17:04 ` Kevin Wolf
2012-10-30 19:03 ` Anthony Liguori
2012-10-30 21:12 ` Anthony Liguori
2012-10-31 13:58 ` Markus Armbruster
2012-10-31 14:01 ` Peter Maydell
2012-10-31 14:09 ` Paolo Bonzini
2012-10-31 14:20 ` Markus Armbruster
2012-10-31 14:40 ` Paolo Bonzini
2012-10-31 14:43 ` Alexander Graf
2012-10-31 14:46 ` Paolo Bonzini [this message]
2012-10-31 16:00 ` Anthony Liguori
2012-10-31 16:05 ` Alexander Graf
2012-10-31 16:46 ` Anthony Liguori
2012-10-31 16:57 ` Alexander Graf
2012-10-31 18:32 ` Anthony Liguori
2012-10-31 16:48 ` Paolo Bonzini
2012-10-31 16:21 ` Kevin Wolf
2012-10-31 16:32 ` Paolo Bonzini
2012-10-31 16:35 ` Alexander Graf
2012-10-31 16:50 ` Paolo Bonzini
2012-11-01 8:50 ` Gerd Hoffmann
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=509139AD.3000207@redhat.com \
--to=pbonzini@redhat.com \
--cc=agraf@suse.de \
--cc=anthony@codemonkey.ws \
--cc=armbru@redhat.com \
--cc=jbaron@redhat.com \
--cc=kraxel@redhat.com \
--cc=kwolf@redhat.com \
--cc=qemu-devel@nongnu.org \
--cc=stefanha@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 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.