Rsync 3.0.0 report and a performance question.

Matt langelino at
Tue Feb 6 01:06:31 GMT 2007


first a short success report: rsync 3.0.0 works as far as I can tell
flawless for me. 

My performance question:  Below are of some recent backup stats one,
using the old protocol (29), the other the latest cvs (30).  As you see,
the file creation time has dropped significantly (0.01 sec vs 80.2 sec).
Still the overall performance hasn't increased much.   This may not be
surprising as very few data (42 and 11 files) are actually transferred.  

Anyway, I am wondering why it is taking full 12 minutes to complete the
rsync.   The connection link is a GigE LAN.  Thus most time is spent
comparing the file lists at sender and receiver.   However, a comparison
rate of 217293 files / 670 sec = 325 files/sec  seems pretty low, no?



With new protocol 30:

Mon Feb 5 13:44:54 PST 2007
/usr/local/bin/rsync -ax --delete --stats --numeric-ids --port=8730
--password-file=xxxx --link-dest=/path/to/backup/xx.old user at machine::xx

Number of files: 217293
Number of files transferred: 42
Total file size: 223074167501 bytes
Total transferred file size: 97022268 bytes
Literal data: 6545079 bytes
Matched data: 90477189 bytes
File list size: 5722327
File list generation time: 0.001 seconds
File list transfer time: 0.000 seconds
Total bytes sent: 145920
Total bytes received: 12369920

sent 145920 bytes  received 12369920 bytes  54064.10 bytes/sec
total size is 223074167501  speedup is 17823.35

Mon Feb 5 13:56:04 PST 2007

With protocol 29:


Sat Feb 3 03:15:50 PST 2007

/usr/local/bin/rsync -ax --delete --stats --numeric-ids --port=8730
--password-file=xxxx --protocol=29 
user at machine::xx /path/to/xx

Number of files: 217290
Number of files transferred: 11
Total file size: 223073128036 bytes
Total transferred file size: 92543007 bytes
Literal data: 4854237 bytes
Matched data: 87688770 bytes
File list size: 5932539
File list generation time: 80.197 seconds
File list transfer time: 0.000 seconds
Total bytes sent: 66791
Total bytes received: 10825958

sent 66791 bytes  received 10825958 bytes  40720.56 bytes/sec
total size is 223073128036  speedup is 20479.05

Sat Feb 3 03:27:18 PST 2007


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