[EMAIL PROTECTED] wrote:
>
> > -----Original Message-----
> > From: Louis LeBlanc [mailto:[EMAIL PROTECTED]]
> > Sent: 19 January 2001 12:39
> > To: [EMAIL PROTECTED]
> > Subject: Re: Rainbow Cryptoswift cards
> >
> >
> > One quick question, just so I know how to answer when this kind of
> > project comes up:
> > The cryptoswift card provides 'onboard' acceleration of SSL based
> > processing, but the card itself can only handle so many
> > transactions per
> > second. What happens if your traffic load exceeds the cards ability?
> > can you easily 'spill' that extra work over to the system if you have
> > any room there?
>
> I don't think so. All you can do is add extra cards, or run multiple servers
> (NetAID used 28 servers with a Rainbow card in each one).
>
> You will need to have a rough idea how much traffic you'll have, in order to
> estimate how many cards you'll need. Bear in mind that some of these other
> solutions like the Intel accelerator are based on a Rainbow card anyway.
>
> I'm hoping we can get away with one per machine. First though, I have to
> recompile openssl!
>
Thanks.
I guess we will have to validate the various options with our system and
code base before even guessing at which option to go for.
We are using our own streamlined implementation to serve content, so it
is possible we will get a better cost/performance ratio without any
peripherals.
The backend system could wind up being overkill if we can get 500
objects/sec served without an accelerator at around $6K (give or take)
and the accelerator only handling 300 effectively, we would need 2 cards
to get by the 500 cps limit, but since the system is no longer
performing the SSL arithmetic, it could very well be better than 60%
idle. we would need to add a couple more cards to get the most out of
it, but by then we could be saturating our network, and don't even get
me started on the cost/performance hit with the added cost of all those
cards.
The specific numbers are strictly conjecture, but something to think
about.
Sorry to take the discussion so far off topic.
L
--
Louis LeBlanc
Fully Funded Hobbyist, KeySlapper Extrordinaire :)
[EMAIL PROTECTED]
http://acadia.ne.mediaone.net
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