Bug 6604 - [manpage] improve documentation of option --block-size=BLOCKSIZE
Summary: [manpage] improve documentation of option --block-size=BLOCKSIZE
Status: NEW
Alias: None
Product: rsync
Classification: Unclassified
Component: core (show other bugs)
Version: 3.0.6
Hardware: Other Windows XP
: P3 normal (vote)
Target Milestone: ---
Assignee: Wayne Davison
QA Contact: Rsync QA Contact
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2009-08-03 14:18 UTC by Jari Aalto
Modified: 2009-08-07 05:05 UTC (History)
1 user (show)

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Description Jari Aalto 2009-08-03 14:18:26 UTC 
Cf Debian bug: http://bugs.debian.org/539816

Package: rsync
Version: 3.0.6-1
Severity: wishlist


Manual page reads:

       -B, --block-size=BLOCKSIZE

              This forces the block size used in rsync’s
              delta-transfer algorithm to a fixed value.  It is
              normally selected based on the size of each file being
              updated.  See the technical report for details.

However, according to comments in the Net, this can drastically
improve rsync performance on fast networks (1Gb etc). Please include
suggestions and more explanation how would bigger block sizes have
impact on improving the performance of backups.