Re: [LAU] encryption and performance penalty

On 17/11/14 10:00, David Christensen wrote:
> On 11/16/2014 12:13 AM, William Light wrote:
>> Correction: Intel(R) Core(TM) i5-3320M CPU @ 2.60GHz...
>
>> will@email-addr-hidden ~% dd if=/dev/urandom of=/dev/null bs=1M count=100
>> 100+0 records in
>> 100+0 records out
>> 104857600 bytes (105 MB) copied, 5.68905 s, 18.4 MB/s
>
> That's only marginally faster than my i7-2600S. I wonder if your
> kernel is making use of your CPU's Secure Key feature?
>
>
> What Linux distribution and kernel do you have?
>
> 2014-11-16 14:57:26 dpchrist@email-addr-hidden ~
> $ cat /etc/debian_version
> 7.7
>
> 2014-11-16 14:57:30 dpchrist@email-addr-hidden ~
> $ uname -a
> Linux i72600s 3.2.0-4-amd64 #1 SMP Debian 3.2.63-2+deb7u1 x86_64
> GNU/Linux
>
>
>
> David
>
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>
Interesting. Similar to my unencrypted Core2Duo.

roger@email-addr-hidden:~$ dd if=/dev/urandom of=/dev/null bs=1M count=100
100+0 records in
100+0 records out
104857600 bytes (105 MB) copied, 5.5929 s, 18.7 MB/s

roger@email-addr-hidden:~$ inxi -b
System: Host: brain Kernel: 3.17-2.towo-siduction-amd64 x86_64 (64
bit) Desktop: KDE 4.14.2
            Distro: siduction 13.2.0 December - kde - (201312310241)
Machine: Mobo: Gigabyte model: EP45-UD3R v: x.x Bios: Award v: F3
date: 09/18/2008
CPU: Dual core Intel Core2 Duo E8500 (-MCP-) speed/max: 2000/3166 MHz

This is not my DAW distro, which is a separate multiboot installation.

Cheers
Roger

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Received on Mon Nov 17 04:15:04 2014