DO NOT REPLY [Bug 5109] New: poor performance on large drives with big bandwidth

[samba-bugs at samba.org]

https://bugzilla.samba.org/show_bug.cgi?id=5109

           Summary: poor performance on large drives with big bandwidth
           Product: rsync
           Version: 2.6.6
          Platform: x86
        OS/Version: Windows XP
            Status: NEW
          Severity: normal
          Priority: P3
         Component: core
        AssignedTo: wayned at samba.org
        ReportedBy: james at time4tea.net
         QAContact: rsync-qa at samba.org


I am attempting to sync 2TB systems with about 400GB of differences across a
1Gb link, however I am finding that rsync has very low CPU and network
utilisation for this scenario.

Seeing as how there is such a lot of data to be synced, it would be great if
rsync could use a little more than the 4% of the availble bandwidth it is
managing!

This is using rsync -a -v --progress rsync://a.b.c.d/xx on cygwin.

This is running on 4 CPU boxes - so we would like to be able to sacrifice
performance for a faster sync speed, if that tradeoff is required.


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