David Rees wrote:
> On 3/29/07, Evren Yurtesen <[EMAIL PROTECTED]> wrote:
>
>>I didnt blame anybody, just said BackupPC is working slow and it was working
>>slow, very slow indeed. checksum-seeds option seems to be doing it's trick
>>though.
>
>
> How long are full and incremental backups taking now?
In one machine it went down from 900 minutes to 175 minutes. I expect better
performance
when more memory is added (today or tomorrow they will add it) and I dont think
all
files had checksums cached when this full was ran.
Totals Existing Files New Files
Backup# Type #Files Size/MB MB/sec #Files Size/MB
#Files Size/MB
245 full 280030 7570.4 0.14 274205 6797.6
10578 776.3
252 full 283960 8020.8 0.76 276665 6959.3
12232 1065.0
Existing Files New Files
Backup# Type Comp Level Size/MB Comp/MB Comp
Size/MB Comp/MB Comp
245 full 9 6797.6 3868.9 43.1% 776.3
368.7 52.5%
252 full 9 6959.3 4056.9 41.7% 1065.0
539.0 49.4%
>
>>I am thankful to people who wrote suggestions here in this forum, I tried all
>>of
>>those suggestions one by one. I think that shows that I took them seriously
>>even
>>though some of them looked like long shots. Eventually one of the suggestions
>>seems to be working.
>
>
> You only tried 2 things. Mounting the backup partition async and
> turning on checksum-seeds. Are you going to the 2 others? (Add memory
> and try tar instead of rsync)
The memory will be added. As I mentioned before the machine is at a remote
location
and the guys there should add it.
I could try tar for testing purposes if you like? I think rsync will be
sufficiently
fast enough. I am guessing that with checksum-seeds the difference shouldnt be
so much
tar probably transfers much more data in full backups? Rsync can be faster
perhaps if
ignore-times was removed when taking full backups. I am thinking of removing
ignore-times
option from full backups with rsync and see how much it effects for seeing the
difference.
> -Dave
>
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