On 05/07/13 09:39, Sam Bingner wrote:
On 7/4/13 3:13 PM, "Brad Campbell" <lists2009@xxxxxxxxxxxxxxx> wrote:
On 05/07/13 02:30, Christoph Anton Mitterer wrote:
When I say max out, I run into bandwidth limits on the hardware before
dmcrypt gets in the way.
That is because your CPU has encryption features - the QNAP devices
largely do not; I replaced the CPU in mine with one that had encryption
features because otherwise there was nothing that could bring the
performance above about 80MB/sec
Once I put in a CPU supporting AESNI I could get up to about 500MB/sec -
and this was still not CPU bound
Yes, of course. I forgot about the dedicated storage device rather than
a general server. I run dmcrypt on a WD mybook live and get about 8MB/s
on that (which is enough for what I need).
--
To unsubscribe from this list: send the line "unsubscribe linux-raid" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
