On Tue, Feb 18, 2003 at 10:08:56PM -, Max Bowsher wrote:
Two things - First:
Please, please don't make this the default! Once a file is sparsified, it
cannot be unsparsified except by copying the contents to a new file! This
seems like an optimization for a corner case is trying to cause a
Christopher Faylor wrote:
On Tue, Feb 18, 2003 at 10:08:56PM -, Max Bowsher wrote:
Two things - First:
Please, please don't make this the default! Once a file is
sparsified, it cannot be unsparsified except by copying the contents
to a new file! This seems like an optimization for a
On Tue, Feb 18, 2003 at 10:21:26PM -, Max Bowsher wrote:
Christopher Faylor wrote:
On Tue, Feb 18, 2003 at 10:08:56PM -, Max Bowsher wrote:
Two things - First:
Please, please don't make this the default! Once a file is
sparsified, it cannot be unsparsified except by copying the
[snip]
What kind of program would actually benefit from sparse
files? And shouldn't
it be the responsibility of that program to request them?
IIRC, linux creates sparse files automatically when you do an lseek to
a position beyond EOF. I believe that Windows is similar.
No, Windows does
On Tue, 18 Feb 2003, Gary R Van Sickle wrote:
Note: It is up to the application to maintain sparseness by writing zeros
with FSCTL_SET_ZERO_DATA, sez the Platform docs.
In this respect Windows are ahead of any recent Unix system. I wasn't able find
any Unix/Posix syscall that would allow this
Vaclav Haisman wrote:
On Tue, 18 Feb 2003, Gary R Van Sickle wrote:
Note: It is up to the application to maintain sparseness by writing
zeros with FSCTL_SET_ZERO_DATA, sez the Platform docs.
In this respect Windows are ahead of any recent Unix system. I wasn't
able find any Unix/Posix
Vaclav Haisman wrote:
Could you do some tests, so we have more than conjecture to go on?
What programs actually *benefit* from sparseness?
My primary motivation to do this is that I use P2P sharing program
called BitTorrent. This program is written in Python and I run it in
Cygwin. This
On Wed, 19 Feb 2003, Max Bowsher wrote:
Well, why not have BitTorrent set the file as sparse?
Because it runs as Cygwin app which is Unix-like environment. There is no way
to set files sparse in Unix because all files are sparse if the file systems
supports it.
Vaclav Haisman
On Wed, Feb 19, 2003 at 02:19:50AM +0100, Vaclav Haisman wrote:
On Wed, 19 Feb 2003, Max Bowsher wrote:
Well, why not have BitTorrent set the file as sparse?
Because it runs as Cygwin app which is Unix-like environment. There is
no way to set files sparse in Unix because all files are sparse if
