[vbox-dev] is virtstor being implemented?

[Liang Suilong]

Virtio-blk is good at a lot of small files. If you need to read or write a
lot of small files, virtio-blk has lower latency and a little better
performance comparing with SATA port. Virtio-blk can decrease CPU usage.

[non-related] Has drag-n-drop and copy-n-paste done? I am waiting for it. I
think these two features will be kller features in the next major version of
VirtualBox.

On Tue, Oct 19, 2010 at 12:53 PM, Alexey Eromenko <al4321 at gmail.com> wrote:

> On Tue, Oct 19, 2010 at 3:56 AM, Huihong Luo <huisinro at yahoo.com> wrote:
> >
> > I know the virtio for network is implemented in vbox, are there any plans
> implementing that for storage?
> >
> > If not, I can contribute to this, as we are very familiar with virtua
> disk stuff, as we do in our VBoot technology, which boots a real pc using a
> virtual disk, and it's close to native performance.
> >
> > What I am thinking is to use a virtual PCI device, and provide guest
> drivers. The PCI needs to be very performing in passing disk blocks.
> >
> > Not sure if current shared folder implementation is good enough, if
> so, we can easily pass the read/write using the current shared folder
> service to read/write the virtual disk file.
> >
> > - Huihong
> >
>
> 1. So far there is no clear evidence that VirtIO-blk is any faster
> than emulated SCSI controller.
> The reason to implement it is speed ?
>
> 2. Windows-guest drivers exist (binary+source code)
> http://www.linux-kvm.org/page/WindowsGuestDrivers/Download_Drivers
> http://alt.fedoraproject.org/pub/alt/virtio-win/latest/images/bin/
>
> So regarding drivers, the maximum effort needed is to WHQL them (along
> with other VBox drivers).
>
> 3. Current Shared Folders is a FileSystem.
> Making a block device out of it may not work, because how will it
> sync, if the host updated files ? (guest assumes that a block-device
> is a wholly-owned disk)
> How can it work?
>
> 4. [non-related] We would _really_ like to see you contribute
> drag-n-drop code, so this can be tested and released with the next
> major version of VirtualBox.
>
> --
> -Alexey Eromenko "Technologov"
>
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>



-- 
Fedora && Debian User, former Ubuntu User
My Page: http://www.liangsuilong.info
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