Matthias Munnich [[EMAIL PROTECTED]] writes: > No! Only the sender side has to compress the data. The comparison > could be done in the compressed data format. With the -z option > the sender compresses the data anyway. The checksum test should > be faster for the smaller compressed pieces.
Except that you'll probably end up retransmitting the whole thing due to the change in compressed output. Since a compression function is essentially a data randomizer (the better the compression the better the randomization of the output), tiny changes in input can result in huge changes in output. That's the traditional problem of trying to use an algorithm like rsync's with compressed file formats. You really need to apply the rsync algorithm to the uncompressed files if you hope to gain any real efficiencies in terms of reduction of traffic transmitted. -- David /-----------------------------------------------------------------------\ \ David Bolen \ E-mail: [EMAIL PROTECTED] / | FitLinxx, Inc. \ Phone: (203) 708-5192 | / 860 Canal Street, Stamford, CT 06902 \ Fax: (203) 316-5150 \ \-----------------------------------------------------------------------/ -- To unsubscribe or change options: http://lists.samba.org/mailman/listinfo/rsync Before posting, read: http://www.tuxedo.org/~esr/faqs/smart-questions.html
