Re: [Ocf-linux-users] Openswan 2.4.9 - tasklet or workqueue ?

[David M. <Dav...@se...>]

Jivin Eran Ben-Avi lays it down ...
> > Jivin Eran Ben-Avi lays it down ...
> > > Hi,
> > > 
> > > I tested IPSec(tunnel mode) routing performance
> > between 2 GbE ports using packet generator(SMARTBIT)
> >  on ARM 500MHz with latest OCF patched on
> > Openswan2.4.9 and I noticed the callback functions
> > are using workqueue.
> > > Since RX was performed in NAPI mode with higher
> > priority then TX (in workqueue), the callback
> > function(in ipsec_ocf.c) was starved with zero
> > routing.
> > > The problem was solved after I switched to use
> > tasklet instead of the workqueue.
> > > Is there a room for updating next OCF release ?
> > 
> > Sure,  send in a patch. This is against
> > ocf-linux-20070727 right ?
> Yes.
> Can you please estimate when next release will be
> ready?

I can probably do one in about a week (offline next week). I could more
easily drop a diff since the last release if that helps you out.

I have made a few small changes to your patch so it should be safe on
2.4 systems yet still select tasklets on 2.6 automatically.

Could you have a look at it ?  I have done some basic testing here
and it seems ok,  haven't checked your performance increases yet ;-)

Thanks,
Davidm

-- 
David McCullough,  dav...@se...,   Ph:+61 734352815
Secure Computing - SnapGear  http://www.uCdot.org http://www.cyberguard.com