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Re: [Qemu-devel] [PATCH 0/2] Enable qemu block layer to not flush
From: |
Jamie Lokier |
Subject: |
Re: [Qemu-devel] [PATCH 0/2] Enable qemu block layer to not flush |
Date: |
Tue, 11 May 2010 22:48:32 +0100 |
User-agent: |
Mutt/1.5.13 (2006-08-11) |
Anthony Liguori wrote:
> There's got to be a better place to fix this. Disable barriers in your
> guests?
If only it were that easy.
OS installs are the thing that this feature would most help. They
take ages, do a huge amount of writing with lots of seeking, and if
the host fails you're going to discard the image.
I'm not sure how I would change that setting for most OS install GUIs,
especially Windows, or if it's even possible.
It's usually much easier to change barrier settings after installing
and you've got a command line or registry editing tool. But by then,
it's not useful any more.
Any other ideas?
-- Jamie
- Re: [Qemu-devel] Re: [PATCH 2/2] Add flush=off parameter to -drive, (continued)
- Re: [Qemu-devel] Re: [PATCH 2/2] Add flush=off parameter to -drive, Alexander Graf, 2010/05/17
- Re: [Qemu-devel] Re: [PATCH 2/2] Add flush=off parameter to -drive, Avi Kivity, 2010/05/11
- [Qemu-devel] Re: [PATCH 2/2] Add flush=off parameter to -drive, Alexander Graf, 2010/05/12
- [Qemu-devel] Re: [PATCH 2/2] Add flush=off parameter to -drive, Kevin Wolf, 2010/05/12
- [Qemu-devel] Re: [PATCH 2/2] Add flush=off parameter to -drive, Alexander Graf, 2010/05/12
Re: [Qemu-devel] [PATCH 1/2] Add no-op aio emulation stub, Stefan Hajnoczi, 2010/05/11
[Qemu-devel] Re: [PATCH 1/2] Add no-op aio emulation stub, Kevin Wolf, 2010/05/11
Re: [Qemu-devel] [PATCH 0/2] Enable qemu block layer to not flush, Anthony Liguori, 2010/05/10
- Re: [Qemu-devel] [PATCH 0/2] Enable qemu block layer to not flush, Alexander Graf, 2010/05/10
- Re: [Qemu-devel] [PATCH 0/2] Enable qemu block layer to not flush, Anthony Liguori, 2010/05/10
- Re: [Qemu-devel] [PATCH 0/2] Enable qemu block layer to not flush,
Jamie Lokier <=
- Re: [Qemu-devel] [PATCH 0/2] Enable qemu block layer to not flush, Stefan Hajnoczi, 2010/05/12
- Re: [Qemu-devel] [PATCH 0/2] Enable qemu block layer to not flush, Jamie Lokier, 2010/05/12
- Re: [Qemu-devel] [PATCH 0/2] Enable qemu block layer to not flush, Stefan Hajnoczi, 2010/05/12
- Re: [Qemu-devel] [PATCH 0/2] Enable qemu block layer to not flush, Jamie Lokier, 2010/05/12