Re: [rdiff-backup-users] rdiff-backup performance stats.

[Jim C. Nasby]

So if rdiff is faster than rsync, what's the problem?

On Wed, May 24, 2006 at 09:59:26AM +0200, Steve Clement wrote:
> Jim C. Nasby wrote:
> 
> >What's rsync give you?
> >  
> >
> I won't rsync them 33Gb again :) but here goes with my home dir over USB2:
> rdiff-backup is 7 minutes faster than rsync which is good.
> I attached the re-sync of this morning too.
> 
> 
> rdiff-backup -v5 --print-statistics  /home/steve /home/bup/home-steve-rdiff/
> 
> --------------[ Session statistics ]--------------
> StartTime 1148207387.00 (Sun May 21 12:29:47 2006)
> EndTime 1148208222.06 (Sun May 21 12:43:42 2006)
> ElapsedTime 835.06 (13 minutes 55.06 seconds)
> SourceFiles 33541
> SourceFileSize 9369989498 (8.73 GB)
> MirrorFiles 1
> MirrorFileSize 0 (0 bytes)
> NewFiles 33540
> NewFileSize 9369989498 (8.73 GB)
> DeletedFiles 0
> DeletedFileSize 0 (0 bytes)
> ChangedFiles 1
> ChangedSourceSize 0 (0 bytes)
> ChangedMirrorSize 0 (0 bytes)
> IncrementFiles 0
> IncrementFileSize 0 (0 bytes)
> TotalDestinationSizeChange 9369989498 (8.73 GB)
> Errors 0
> 
> rsync:
> address@hidden ~ $ date > start ; rsync -a -vv -z --stats --progress
> /home/steve /home/bup/home-steve-rsync ; date > stop
> address@hidden ~ $ cat start
> Tue May 23 22:00:29 CEST 2006
> address@hidden ~ $ cat stop
> Tue May 23 22:20:07 CEST 2006
> 
> 
> total: matches=0  tag_hits=0  false_alarms=0 data=9395970440
> 
> rsync[6589] (server receiver) heap statistics:
>   arena:        4206592   (bytes from sbrk)
> 
> rsync[6587] (sender) heap statistics:
>   arena:        4190208   (bytes from sbrk)
>   ordblks:            4   (chunks not in use)
>   smblks:             2
>   hblks:              1   (chunks from mmap)
>   hblkhd:        258048   (bytes from mmap)
>   usmblks:            0
>   fsmblks:           80
>   uordblks:     4046744   (bytes used)
>   fordblks:      143464   (bytes free)
>   keepcost:      134168   (bytes in releasable chunk)
> 
> Number of files: 33752
> Number of files transferred: 28912
> Total file size: 9394160875 bytes
> Total transferred file size: 9394157048 bytes
> Literal data: 9395970440 bytes
> Matched data: 0 bytes
> File list size: 785619
> Total bytes written: 4985930543
> Total bytes read: 578260
> 
> wrote 4985930543 bytes  read 578260 bytes  4231233.60 bytes/sec
> total size is 9394160875  speedup is 1.88
> 
> And on a re-sync:
> 
> rdiff-backup:
> 
> --------------[ Session statistics ]--------------
> StartTime 1148457402.00 (Wed May 24 09:56:42 2006)
> EndTime 1148457453.51 (Wed May 24 09:57:33 2006)
> ElapsedTime 51.51 (51.51 seconds)
> SourceFiles 33757
> SourceFileSize 9396422264 (8.75 GB)
> MirrorFiles 33541
> MirrorFileSize 9369989498 (8.73 GB)
> NewFiles 216
> NewFileSize 18760671 (17.9 MB)
> DeletedFiles 0
> DeletedFileSize 0 (0 bytes)
> ChangedFiles 196
> ChangedSourceSize 74415392 (71.0 MB)
> ChangedMirrorSize 66743297 (63.7 MB)
> IncrementFiles 412
> IncrementFileSize 418518 (409 KB)
> TotalDestinationSizeChange 26851284 (25.6 MB)
> Errors 0
> --------------------------------------------------
> 
> 
> rsync:
> 
> total: matches=0  tag_hits=0  false_alarms=0 data=67510084
> 
> rsync[8086] (server receiver) heap statistics:
>   arena:        4206592   (bytes from sbrk)
> 
> rsync[8084] (sender) heap statistics:
>   arena:        4190208   (bytes from sbrk)
>   ordblks:            4   (chunks not in use)
>   smblks:             5
>   hblks:              1   (chunks from mmap)
>   hblkhd:        258048   (bytes from mmap)
>   usmblks:            0
>   fsmblks:          200
>   uordblks:     4047144   (bytes used)
>   fordblks:      143064   (bytes free)
>   keepcost:      133304   (bytes in releasable chunk)
> 
> Number of files: 33757
> Number of files transferred: 119
> Total file size: 9396426091 bytes
> Total transferred file size: 67510084 bytes
> Literal data: 67510084 bytes
> Matched data: 0 bytes
> File list size: 785742
> Total bytes written: 12119290
> Total bytes read: 2400
> 
> wrote 12119290 bytes  read 2400 bytes  897902.96 bytes/sec
> total size is 9396426091  speedup is 775.17
> 
> address@hidden ~ $ cat start stop
> Wed May 24 09:57:44 CEST 2006
> Wed May 24 09:57:57 CEST 2006
> 
> 
> -- 
> ION Network Solutions
> Steve Clement
> Unix System Administrator
> 209, rue des Romains
> L-8041 Bertrange
> Tel: +352 261 276-2
> Fax: +352 261 276-9
> mailto:address@hidden
> http://www.ion.lu
> 



-- 
Jim C. Nasby, Database Architect                address@hidden 
Give your computer some brain candy! www.distributed.net Team #1828

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