[sheepdog] [PATCH 08/10] sheep: introduce sparse objects

[MORITA Kazutaka]

At Tue, 21 May 2013 11:16:20 +0800,
Liu Yuan wrote:
> 
> On 05/21/2013 08:11 AM, MORITA Kazutaka wrote:
> > We don't need to care about a fragmentation when
> >  - the object is unlikely to be accessed sequentially, and
> 
> What the problem if we access object sequentially? For file hole, file
> system will return 0 to the application, no?

The problem of the sparse file is that it leads to fragmentation.  If
the file is fragmented, sequential access from VMs may cause disk
seeks.

Thanks,

Kazutaka