DO NOT REPLY [Bug 5801] Speed up delta-transfer of zeros in new files with --sparse

[samba-bugs at samba.org]

https://bugzilla.samba.org/show_bug.cgi?id=5801


matt at mattmccutchen.net changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|normal                      |enhancement
            Summary|Sparse (-S) option doesn't  |Speed up delta-transfer of
                   |work with new files         |zeros in new files with --
                   |                            |sparse




------- Comment #1 from matt at mattmccutchen.net  2008-10-01 20:17 CST -------
As currently designed, the --sparse option only affects writing of the
destination file, not the transfer of the data, so this is an enhancement
request.  -z may help.  It may be worth adding a special case for zero blocks
to the delta-transfer algorithm, as suggested in the Debian bug report, to
improve the behavior for sparse files without the full CPU-time penalty of
compression.


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