[Haifux] Whole disk encryption, because it costs nothing?

Shachar Shemesh shachar at shemesh.biz
Tue Jan 12 08:54:26 MSK 2010

Eli Billauer wrote:
> Shachar Shemesh wrote:
>> Also, I do not run any virtual machine from the encrypted partition - 
>> too much trouble.
> Since that's exactly what I want to do, could you be more specific 
> about what kind of trouble? Just slow? Or other issues?
No other issues. As far as I remember, I didn't even bother to try. I 
suspect it'll be too slow.
> And when you say "dual core", how many CPUs does the kernel count?
> (my quad core counts as eight, as I've already mentioned)
Which means, if I understand correctly, that you have four hyper 
threaded cores, which is not the same as eight CPUs. This means your 
test was meaningless. You should test the performance hit under load, 
not when the other CPUs are idle, as hyper threading does not partition 
the task completely between the "cores".
>    Eli

Shachar Shemesh
Lingnu Open Source Consulting Ltd.

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