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Re: Encrypting drive

From: Michael Stone <mstone(at)debian.org>
Date: Mon Jul 09 2007 - 08:01:12 EDT


On Mon, Jul 09, 2007 at 04:24:30PM +1000, Russell Coker wrote:
>On Monday 02 July 2007 11:35, Anders Breindahl <skrewz@skrewz.dk> wrote:
>> In servers, you might want to trust physical security, since
>> whole-system encryption incurs a performance degradation. (However, on a
>> reasonably recent system, you still will be bottlenecked by Fast
>> Ethernet at 100Mb/s).
>
>Where "reasonably fast" means faster than a 3GHz P4. A 3GHz P4 system I was
>working on recently appeared to be limited to 4MB/s, if it wasn't for the
>fact that the machine is about to be decommissioned then I would probably
>investigate this further as the performance is lower than expected.

There was definately a local problem of some sort; I get well upward of 20MB/s (double fast ether speed) on a 1.6GHz K6, which should be significantly slower than a 3GHz P4.

Mike Stone

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