Re: Gigabit Ethernet, and Linux -- first observations

On Thu, 13 Sep 2007 17:04:10 GMT, Ivar Rosquist <IRosquist@xxxxxxx> wrote:
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.

You mean a 64 bit CPU? Sorry if I am missing something obvious.

My laptop is 64 bit, the rest is, unfortunately, 32 bit.

i
.

Relevant Pages

  • Re: Gigabit Ethernet, and Linux -- first observations
    ... 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, ... My laptop is 64 bit, the rest is, unfortunately, 32 bit. ...
    (comp.security.ssh)
  • Re: Gigabit Ethernet, and Linux -- first observations
    ... one thing that will name a difference: using the patch on the HPN ... page that allows the "none" cipher. ... I am a little leery of patching SSH for any reason. ...
    (comp.security.ssh)
  • Re: Gigabit Ethernet, and Linux -- first observations
    ... one thing that will name a difference: using the patch on the HPN ... page that allows the "none" cipher. ... Good judgement comes with experience. ...
    (comp.security.ssh)
  • Re: Ho to Encrypt specific local files?
    ... However, since your GPG key pair would likely be on the same drive, you should ... instead use something like a symmetric AES256 cipher instead of using its PKI ... passphrase, to stop unauthorized people from using the key if they manage ... to get their hands on your laptop. ...
    (Fedora)
  • Re: Gigabit Ethernet, and Linux -- first observations
    ... difference on a LAN. ... one thing that will name a difference: using the patch on the HPN ... page that allows the "none" cipher. ...
    (comp.security.ssh)