Re: Gigabit Ethernet, and Linux -- first observations



On Thu, 13 Sep 2007 11:15:38 -0500, Ignoramus32529 wrote:

On Thu, 13 Sep 2007 19:07:39 +1000, Darren Tucker
<dtucker@xxxxxxxxxxxxxxxx> wrote:
On 2007-09-13, Darren Tucker <dtucker@xxxxxxxxxxxxxxxx> wrote:
Try it by all means, but don't be surprised if it makes little
difference on a LAN.

Oh, one thing that will name a difference: using the patch on the HPN
page that allows the "none" cipher. It will reduce the CPU usage, and
that might or might not make a difference to the throughput depending
on what the limiting factor is at that point.

Some symmetric ciphers are surprisingly cheap on modern hardware. My
four year old laptop (1.3GHz Pentium M) reports ~186 MByte/s for
arcfour (via "openssl speed rc4").


You know, I can get about 50 MegaBYTES per second using arcfour128.

Or about 5 times as much, if running on IA64.
.