[Bug 3099] New: Please parallelize filesystem scan

[samba-bugs at samba.org]

https://bugzilla.samba.org/show_bug.cgi?id=3099

           Summary: Please parallelize filesystem scan
           Product: rsync
           Version: 2.6.4
          Platform: All
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P3
         Component: core
        AssignedTo: wayned at samba.org
        ReportedBy: hpa at zytor.com
         QAContact: rsync-qa at samba.org


I just had the unpleasant experience of doing an rsync --checksum of two
terabytes worth of data.  Much to my chagrin, it actually took *longer* than it
would have been to just wipe the filesystem clean and start over, because the
two checksumming passes were done in a serial fashion -- first one machine, then
the other.  Each took well over 24 hours to complete.

Please parallelize the filesystem scan phases.  There is absolutely no reason
for one machine to sit and wait for the other when it comes to searching its own
filesystem.

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