Does LVM affect performance

[Stratos Laspas]

στις 12/04/2007 05:24 μμ, O/H WipeOut έγραψε:
> Hi,
>
> Pretty simple questions but probably not such a simple answer..
>
> Does using LVM affect disk and system performnace?
>
> There must be some overhead involved (memory, cpu or disk IO) in using
> LVM but is that overhead measurable or is it insignificant if disk 
> throughput is of significance??
>
> Would be interesting to hear your thoughts or from anyone who has tested
> it..
>
> Thanks..
>
>
>   
Hi there,

I am using LVM over  two RAID1 pairs of disks, I have not noticed any
particular performance hit. However, this is just my feeling, I have not
run any specific tests.