OpenSSH HPN
Allan Jude
allanjude at freebsd.org
Thu Nov 12 17:15:19 UTC 2015
On 2015-11-11 19:06, Slawa Olhovchenkov wrote:
> On Wed, Nov 11, 2015 at 01:32:27PM -0800, Bryan Drewery wrote:
>
>> On 11/10/2015 1:42 AM, Dag-Erling Smørgrav wrote:
>>> I would also like to remove the NONE cipher
>>> patch, which is also available in the port (off by default, just like in
>>> base).
>>
>> Fun fact, it's been broken in the port for several months with no
>> complaints. It was just reported and fixed upstream in the last day and
>> I wrote in a similar fix in the port. That speaks a lot about its usage
>> in the port currently.
>
> I am try using NPH/NONE with base ssh and confused: don't see
> performance rise, too complex to enable and too complex for use.
>
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I did a few quick (and dirty) benchmarks and it shows that the NONE
cipher definitely makes a difference. Version of OpenSSL also seems to
make a difference, as one might expect.
Note: openssh from ports seems to link against both base and ports
libcrypto, I am still trying to make sure this isn't corrupting my
benchmark results.
I am still debugging my dummynet setup to be able to prove that HPN
makes a difference (but it does).
https://wiki.freebsd.org/SSHPerf
--
Allan Jude
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