Re: [Clonezilla-live] Partclone vs Partimage

[Lukas G. <luk...@co...>]

On 14.04.2010 23:16, Steven Shiau wrote:
> 
> 
> Lukas Grässlin wrote:
>> On 14.04.2010 16:15, Steven Shiau wrote:
>>  
>>> Lukas Grässlin wrote:
>>>    
>>>>> There is an option "-f" of partclone which you might be interested to
>>>>> give it try.
>>>>> You can tune it to see if any difference.
>>>>>             
>>>> As I understood the code, -f only affects the time the gui itself would
>>>> be refreshed, but the update_pui method which also runs calculate_speed
>>>> anyway is run.
>>>>
>>>>         
>>> Thanks. I will check with Thomas,
>>>     
>>
>> No problem.
>>
>> You can see it e.g. here in restore.c :
>>
>>         /// start restore image file to partition
>>         for( block_id = 0; block_id < image_hdr.totalblock; block_id++ ){
>>                 /* doing things, copying the blocks */
>>             update_pui(&prog, copied, done);
>>         } // end of for
>>
>>
>> I did a patch for myself within I told it just call update_pui once for
>> 5000 blocks. Don't know if its a good idea, but it worked ;)
>>   
> Good, and the performance is?
> Could you please also send us the patch file?
> Thanks.

I got about 20-39 MB/s.
Here is the patch. There are some other changes within:

* I completeley disabled the update_pui on the server side, because
clonezilla anyway doesn't show the output there.

* I changed the display of the speed from */min to */s beaucse I thoght
it's better readable for the most people.

* I implemented that crc32-checks can be disabled. Not an good idea, but
I wanted it for testing and its disabled by default.

Sorry, I had no time to rip off these other changes but it should be ok
anyway I hope.

Regards,
Lukas

> 
> Steven.
>>
>>  
>>>> If I've time I'll try the older clonezilla live, too.
>>>>
>>>>
>>>>  
>>>>      
>>>>> BTW, maybe you can also give Clonezilla live 1.2.2-14 a try? It's
>>>>> partclone is older, and we might have a regression somewhere...
>>>>> Please let us know the results.
>>>>> Thanks.
>>>>>
>>>>> Regards,
>>>>> Steven.
>>>>>           
>>>>>> On 14.04.2010 10:33, Steven Shiau wrote:
>>>>>>  
>>>>>>               
>>>>>>> Yes, Thomas Tsai is working on the improvement of partclone.
>>>>>>>
>>>>>>> Lukas,
>>>>>>> Please send us gprof results you have.
>>>>>>> Thanks.
>>>>>>>
>>>>>>> Steven.
>>>>>>>
>>>>>>> On 2010/4/14 下午 02:43, Lukas Grässlin wrote:
>>>>>>>                      
>>>>>>>> Regarding the perfmance of partclone: Look at the "on-the-fly
>>>>>>>> performance" Thread in this mailing list.
>>>>>>>>
>>>>>>>> Partclone does some odd things which slow down the speed. You can
>>>>>>>> improve this by saying not to use the gui. (I think this is in the
>>>>>>>> expert options). But it stills does stupid things, like
>>>>>>>> calculating the
>>>>>>>> speed too often which resultes in high cpu load.
>>>>>>>>
>>>>>>>> Regards,
>>>>>>>> Lukas
>>>>>>>>
>>>>>>>> On 14.04.2010 06:39, Jorge Fábregas wrote:
>>>>>>>>                            
>>>>>>>>> Hello Steven,
>>>>>>>>>
>>>>>>>>> I've been using Clonezilla happily for more than 2 years and I
>>>>>>>>> always used the
>>>>>>>>> custom options and specifically partimage as the cloning tool.
>>>>>>>>> Since partimage
>>>>>>>>> seems to be a dead project (and no support for ext4) and
>>>>>>>>> considering that
>>>>>>>>> Clonezilla uses partclone as the default option I decided to use
>>>>>>>>> this.
>>>>>>>>>
>>>>>>>>> My observation was that partclone takes some more time.  When it
>>>>>>>>> started
>>>>>>>>> saving the partition, I wasn't sure what it was doing.  There was
>>>>>>>>> some
>>>>>>>>> progress indicator (percentage) (Generating bitmap..) and I after
>>>>>>>>> that it
>>>>>>>>> started again another progress indicator (I guess the actual
>>>>>>>>> creation of the
>>>>>>>>> image).  I'm a bit confused about these 2 steps as soon as
>>>>>>>>> partclone starts.
>>>>>>>>> Any tip will be appreciated. (just curious).
>>>>>>>>>
>>>>>>>>> Thanks for Clonezillla.
>>>>>>>>>
>>>>>>>>> Best regards,
>>>>>>>>> Jorge
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> ------------------------------------------------------------------------------
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> Download Intel&#174; Parallel Studio Eval
>>>>>>>>> Try the new software tools for yourself. Speed compiling, find
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>>>>>>>>> _______________________________________________
>>>>>>>>> Clonezilla-live mailing list
>>>>>>>>> Clo...@li...
>>>>>>>>> https://lists.sourceforge.net/lists/listinfo/clonezilla-live
>>>>>>>>>                                     
>>>>>>>>                               
>>>>>>                   
>>>>         
>>
>>
>>   
> 


-- 
Lukas Grässlin

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