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[rdiff-backup-users] rdiff-backup to LinkStation: *slow*
From: |
Felix E. Klee |
Subject: |
[rdiff-backup-users] rdiff-backup to LinkStation: *slow* |
Date: |
Fri, 26 May 2006 00:36:39 +0200 |
User-agent: |
Wanderlust/2.14.0 (Africa) SEMI/1.14.6 (Maruoka) FLIM/1.14.7 (Sanjō) APEL/10.6 Emacs/21.4 (i486-slackware-linux-gnu) MULE/5.0 (SAKAKI) |
I've successfully installed rdiff-backup on a Buffalo LinkStation.
However, to my disappointment, it's dog slow when compared to plain ssh,
especially when many small files are to be backed up:
/tmp$ du -sh ls
398M ls
/tmp$ find ls | wc -l
12772
/tmp$ time rdiff-backup ls/ address@hidden::/mnt/hda/share/test
address@hidden's password:
real 148m4.930s
user 0m13.059s
sys 0m3.196s
/tmp$ du -sh ls2
4.0G ls2
/tmp$ find ls2 | wc -l
2
/tmp$ time rdiff-backup ls2 address@hidden::/mnt/hda/share/test2
address@hidden's password:
real 113m52.755s
user 0m50.338s
sys 0m28.332s
There was other traffic on the LAN while the backup was performed, but
that should be negligible.
Any ideas whether speed can be improved and, if so, how?
If rdiff-backup really is too resource hungry, what other tools do you
recommend for doing incremental backups (I need history) over 100MBit
LAN? Personally, I've experience with star (a TAR implementation) and
rsnapshot (based on rsync), but rdiff-backup seems to be the most
comfortable solution for me.
Details:
* Software on the LinkStation: librsync 0.9.7, rdiff-backup 1.0.4,
dropbear 0.46 (SSH).
* Software on the client: librsync 0.9.7, rdiff-backup 1.0.4, OpenSSH
4.3p1, OpenSSL 0.9.7g.
* Hardware of the Linkstation: Mipsel CPU at 400MHz, ca. 64MiB RAM,
160GB HD at 7200RPM, 100MBit/s LAN.
* Hardware of the client: Thinkpad T41 with 1.6GHz Pentium-M, 1GiB RAM,
100GB HD at 5400RPM, 10/100/1000MBit/s LAN.
--
Felix E. Klee
- [rdiff-backup-users] rdiff-backup to LinkStation: *slow*,
Felix E. Klee <=
Re: [rdiff-backup-users] rdiff-backup to LinkStation: *slow*, Felix E. Klee, 2006/05/31