[tor-relays] HardwareAccel: Current proper use???

[usprey]

> Since the hardware feature became more relevant in the last time i'm really
> looking forward to have a fresh set of eyes looking into it. Sometimes i
> find myself assuming things that shouldn't be assumed when it comes to new
> relays. If you feel the docu lacks something, please provide some input :-)

Will do. =)

On 3 January 2015 at 15:07, Sebastian Urbach <sebastian at urbach.org> wrote:
> On January 3, 2015 2:42:44 PM usprey <usprey at gmail.com> wrote:
>
> Hi,
>
>> On 3 January 2015 at 13:56, Sebastian Urbach <sebastian at urbach.org> wrote:
>> > On January 3, 2015 10:41:42 AM usprey <usprey at gmail.com> wrote:
>> >
>> > Hi usprey,
>> >
>> >> Summary:
>> >> The documentation is still somewhat vague on the best use of the
>> >> "HardwareAccel" option.
>> >>
>> >> > *HardwareAccel* *0*|*1*
>> >
>> >
>> > The docu is not exactly a high-performance howto :-)
>>
>> np, would just like to elaborate this option in the manual for people
>> not fluent in OpenSSL.
>
>
> Since the hardware feature became more relevant in the last time i'm really
> looking forward to have a fresh set of eyes looking into it. Sometimes i
> find myself assuming things that shouldn't be assumed when it comes to new
> relays. If you feel the docu lacks something, please provide some input :-)
>>
>>
>> >
>> >> >
>> >> > If non-zero, try to use built-in (static) crypto hardware
>> >> > acceleration
>> >> > when available. (Default: 0)
>> >> >
>> >> I could not find a definitive answer in the archives or in
>> >>
>> >>
>> >> https://gitweb.torproject.org/tor.git/log/?qt=grep&q=hardwareaccel&showmsg=1
>> >> .
>> >>
>> >> https://www.torservers.net/wiki/setup/server#aes-ni_crypto_acceleration
>> >> claims
>> >> no intervention is needed in regards of aes-ni accelaration, but I
>> >> would
>> >> like to add an explanation or source to this recommendation.
>> >>
>> >> Question_1:
>> >> If my CPU supports and have loaded aesni_intel on linux with OpenSSL is
>> >> 1.0.1.j-1, should I leave HardwareAccel off or explicitly enable it?
>> >
>> >
>> > You don't have to change anything with 1.0.1.j-1, leave the default.
>> >
>> >>
>> >> Question_2:
>> >> What does "*built-in (static) crypto hardware acceleration*" refer to?
>> >> Dedicated hardware, CPU-support or...?
>> >
>> >
>> > It specifically means that you have the aes_ni cpu capabilities / flag.
>> > I
>> > have seen this flag on dedicated systems and also on vps systems as
>> > well. If
>> > the cpu / bios provides the flag and all other requirements are met (as
>> > stated in the torservers.net docu) you can use that feature on any
>> > system.
>>
>> k, ty, will venture into OpenSSL docs.
>>
>> >
>> > I would very much appreciate it if you would switch to text mail format,
>> > thanks.
>>
>> k, is that the preferred default on these lists?
>
>
> All lists i know prefer plain text, just better readable for everybody.
>
>
>>
>> >
>> > Thank you very much for running a relay !
>> >
>> >>
>> >> Best regards
>> >>
>> >>
>> >>
>> >> ----------
>> >> _______________________________________________
>> >> tor-relays mailing list
>> >> tor-relays at lists.torproject.org
>> >> https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-relays
>> >>
>> >
>> >
>> > --
>> > Sincerely yours / Sincères salutations
>> >
>> > Sebastian Urbach
>> >
>> > -----------------------------------------
>> > Definition of Tor:
>> > 10% luck, 20% skill, 15% concentrated
>> > power of will, 5% pleasure, 50% pain and
>> > 100% reason to remember the name!
>> > -----------------------------------------
>> >
>> >
>> >
>> > _______________________________________________
>> > tor-relays mailing list
>> > tor-relays at lists.torproject.org
>> > https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-relays
>> _______________________________________________
>> tor-relays mailing list
>> tor-relays at lists.torproject.org
>> https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-relays
>
>
>
> --
> Sincerely yours / Sincères salutations
>
> Sebastian Urbach
>
> -----------------------------------------
> Definition of Tor:
> 10% luck, 20% skill, 15% concentrated
> power of will, 5% pleasure, 50% pain and
> 100% reason to remember the name!
> -----------------------------------------
>
>
> _______________________________________________
> tor-relays mailing list
> tor-relays at lists.torproject.org
> https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-relays