[PVE-User] slow backup

[Tonči Stipičević]

Hello to all

I'm using 4xIntelAtom CPU 2558 @2,4GHz  on the host
a backup storages are (1G) freenas nfs and local sata disk

So classic backup (vzdump) of 32G image takes about 1h ... the same 
result to  the nfs storage and to local sata disk
I tried changing bwlimit in vzdump.conf   the result is allways the same 
slow

But Clone VM takes less then 10 min

manual lzop backup of this image (nfs storage or sata disk) takes less 
than 10' too   ... tar runs  same fast

So we cannot say tha CPU is not capable of doing archiving with 
commpression

Why is backup so slow and what can I do to optimize it?

thank you very much in advance and
BR

Tonci //
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