Re: dm-crypt performance and dual-core cpus?

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Gerald Hopf wrote:
> Hi,
>
>
> does anyone here have performance experience with dm-crypt running on
> dual-core vs. single-core systems?
>
> I am currently using AES-128 encryption and am able to get about 31MB/s
> sustained performance on my single-core athlon 64 3000+ (when copying from
> the encrypted volume to a fast non-encrypted volume).
>
> Since 31MB/s is will below the limits of gigabit ethernet, i would like
> to get even more performance :-)
>
> Does anyone know if the AES encryption (or any other available
> encryption, I'm willing to swap if necessary) does profit from adding a
> second cpu (core) ?
>
> Gerald
>

Hello,

I'm using luks on a dual athlon mp 1800+ and when doing large copies it
loads both cpu:s and I'm seeing similiar performance you are seeing but
with AES-256.

/Andreas
>
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