On 5/26/2010 10:23 AM, Ralf Gross wrote:
> Tyler J. Wagner schrieb:
>>
>>
>> On Wednesday 26 May 2010 14:34:40 Sorin Srbu wrote:
>>>> -----Original Message-----
>>>> From: Les Mikesell [mailto:lesmikesell AT gmail DOT com]
>>>> Sent: Wednesday, May 26, 2010 2:55 PM
>>>> To: General list for user discussion, questions and support
>>>> Subject: Re: [BackupPC-users] speed up backups
>>>>
>>>> After the 1st 2 fulls, rsync should be better if you have enabled checksum
>>>> caching.  You do need plenty of RAM to hold the directory listing if you
>>>
>>> have a
>>>
>>>> large number of files.
>>>
>>> That was the checksum= 31thousandsomething to be added somewhere. I need to
>>> find that mail in the archives...
>>>
>>
>> Add to RsyncArgs and RsyncRestoreArgs:
>>
>> --checksum-seed=32761
>>
>> The best thing about BackupPC is that all help is available from the web
>> interface.
>
> Ok, I give it a shot. Changed the Xfer method to rsync, updated to
> rsync 3.0.2 (I know I will not benefit much because of BackupPC's own
> rsync perl module) and added the --checksum-seed option.
>
> Right now the rsync process is consuming 370 MB and is still growing.
> The file server has 7.000.000 files. Let's see what happens...

If the directory layout makes it reasonable to split that into several 
different runs it would help, especially if you are short on RAM.

-- 
   Les Mikesell
    lesmikesell AT gmail DOT com


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