Re: [Hampshire] Ubuntu LVM LUKS

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Author: Alan Pope
Date:  
To: Hampshire LUG Discussion List
Subject: Re: [Hampshire] Ubuntu LVM LUKS
2008/12/22 Antony <ar@???>:
> What's the bottleneck according to the system monitor and top? It's a
> bit hard to believe the 1.7MBps results from pseudo random generation,
> much less the encryption or disk system, but maybe filling from
> /dev/zero would help as a compromise?
>


I found /dev/urandom to be _quite_ the CPU {ab}user when I was using
it to trash a hard disk a while ago. Unsurprising really given what
it's doing. I switched to /dev/zero and performance of the was much
more acceptable.

Cheers,
Al.