[ale] rsync comparisons

[Robert Coggins]

looks like it but they are 2 nfs mounts on one box.

On 04/01/2010 03:55 PM, Jeff Hubbs wrote:
> Is this a box-to-same-box rsync?
> 
> On 4/1/10 3:29 PM, Robert Coggins wrote:
>> I am using -a --delete and --eclude.  Pretty Basic.
>>
>> To be honest I think my problem is with the Source.  It even does an ls
>> very slow.  There are probably more than 1 million files in this 20GB.
>>
>> On 04/01/2010 02:49 PM, Björn Gustafsson wrote:
>>    
>>> Which switches are you using now?  It doesn't sound like adding the
>>> ones discussed so far will help.
>>>
>>> On Thu, Apr 1, 2010 at 11:41 AM, Robert Coggins<ale at cogginsnet.com>  wrote:
>>>      
>>>> Well, what I a seeing is the syncing of roughly 20GB taking over an hour
>>>> for just a few megs of differences.  It stays in the "building file
>>>> list..." for almost all of this time.  I am trying to find a way to
>>>> speed that up.
>>>>
>>>> Rob
>>>>
>>>> On 04/01/2010 11:37 AM, scott wrote:
>>>>        
>>>>> rsync compares on a file level BUT it compares timedate stamps/sizes
>>>>> in "quick mode" (which is default).  but if you want it to compare
>>>>> file to file, use "-c or --checksum" option.  Now this puts a heavier
>>>>> load on both systems, since it does a MD5 checksum on every file that
>>>>> has the same timedate stamp/size on both sides of the sync.  Now if
>>>>> you want to force the copy of the whole file instead of the changed
>>>>> blocks, use the --whole-file option with it.
>>>>>
>>>>> I would use this ( -c&  --whole-file) sparingly.  It is going to slow
>>>>> down the copies, put heavier loads on both ends and transfer more data
>>>>> (control data) back and forth.  I dont know your situation so I cant
>>>>> say to use it or or not.
>>>>>
>>>>> scott
>>>>>
>>>>>
>>>>> On Thu, Apr 1, 2010 at 11:00 AM, Robert Coggins<ale at cogginsnet.com>  wrote:
>>>>>          
>>>>>> Is there a way to do file level comparisons and not block level
>>>>>> comparisons using rsync?
>>>>>>
>>>>>> Rob
>>>>>>            
>>>      
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>>    
> 
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