[Openswan dev] ocf debian

Harald Jenny harald at a-little-linux-box.at
Sun Dec 19 15:44:32 EST 2010


On Sat, Dec 18, 2010 at 01:22:57PM +1000, David McCullough wrote:
> Jivin Harald Jenny lays it down ...
> ...
> > > > > I'm still not entirely sure what that buys though.
> > > > 
> > > > I'm just proposing it, maybe David can also comment on this? On the other hand,
> > > > I think he told me that when no OCF hardware acceleration is found OCF will use
> > > > cryptoapi as a fallback, correct? Would this also include hardware acceleration
> > > > that can be done by cryptoapi but not OCF or only software?
> > > 
> > > Yes,  anything crypto API can do OCF can take adavantage of.
> > 
> > May I ask how much performance penality this brings?
> 
> Very little actually.  It is a measurable amount though.
> I wrote the ocf-bench driver to test this when using the IXP
> access library directly or via OCF,  the difference was acceptable
> to us (1-2% at most IIRC)

Hmmm thanks for this numbers.

> 
> Cheers,
> Davidm

Kind regards
Harald

> 
> -- 
> David McCullough,      david_mccullough at mcafee.com,  Ph:+61 734352815
> McAfee - SnapGear      http://www.mcafee.com         http://www.uCdot.org


More information about the Dev mailing list