Re: [Clonezilla-live] on-the-fly performance

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

On 31.03.2010 11:10, Steven Shiau wrote:
> Right now I do not have real machines which I can test. Therefore I can
> not give you the numbers.
> If anyone on this forum has such numbers to share, please share that.
> 
> BTW, there is a performance improvement in partclone 0.2.8, and it's now
> included in clonezilla live 20100330-karmic. Could you please give it a
> try? To see if any big difference.
> Please let us know the results if you try that.

So, I tried the 20100330 clonezilla ISO and the results with the speed
are the same. I think the main reason for that bad speed is, that on the
client side (the vm, where the physical machine is migrated to) the
partclone.restore process procudes almost 100% CPU load. (It's s a vm
with two cores, but it only uses one).
I think that is the main bottleneck.

> 
> Regards,
> Steven.
> 
> On 2010/3/29 下午 11:31, Lukas Grässlin wrote:
>> Both SATA Disks, the destination is a virtual machine but I did some
>> IO-Performance tests with dd on the virtual machine. It is definitely
>> able to write and read with more than 20MB/s. (I did dd if=/dev/sda
>> of=/dev/zero bs=100M count=10 etc.)
>>
>> The network can't really limit the speed, so I don't know what is
>> could be.
>>
>> What's your experience with the speed? Is it faster?
>>
>> I'll do some tests on my own with dd and netcat or so.
>>
>> ((sorry, forgot to click the reply-all button ;) ))
>>
>>
>> On 29.03.2010 16:26, Steven Shiau wrote:
>>> How about the speed when you save the image?
>>> What's the disk types in the source and destination machines? SATA?
>>> PATA? USB? Or?
>>>
>>> Steven.
>>>
>>> Lukas Grässlin wrote:
>>>> Hi,
>>>>
>>>> whats's you experience with the onthefly migration (that partclone over
>>>> netcat thing) especially perfomance?
>>>>
>>>> I never get more than ~300MB/min (=~ 5MB/s) in a Gigabit network which
>>>> is very dissappoiting. I already tried it without compression etc but I
>>>> didn't get more speed. (Further the machines are fast enough to do it
>>>> faster than 5MB/s with compression).
>>>>
>>>> Is that a partclone issue? Have you any ideas?
>>>>
>>>> Regards,
>>>> Lukas
>>>>
>>>>
>>>
>>
>>
> 


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Lukas Grässlin

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