[dpdk-dev] [PATCH v2 3/5] testpmd: Change rxfreet default to 32

[Thomas Monjalon]

Hi Bruce,

2014-09-24 09:03, Richardson, Bruce:
> From: Neil Horman [mailto:nhorman at tuxdriver.com]
> > On Tue, Sep 23, 2014 at 12:08:15PM +0100, Bruce Richardson wrote:
> > > --- a/app/test-pmd/testpmd.c
> > > +++ b/app/test-pmd/testpmd.c
> > > @@ -225,7 +225,9 @@ struct rte_eth_thresh tx_thresh = {
> > >  /*
> > >   * Configurable value of RX free threshold.
> > >   */
> > > -uint16_t rx_free_thresh = 0; /* Immediately free RX descriptors by default. */
> > > +uint16_t rx_free_thresh = 32; /* Refill RX descriptors once every 32 packets,
> > > +		This setting is needed for ixgbe to enable bulk alloc or vector
> > > +		receive functionality. */
> > 
> > I thought we were talking about making this a pmd private selectable item,
> > or allowing a reserved "let the pmd decide" setting.  Or are we saving
> > that for a later time?
> 
> Yes, we are looking at that - and hopefully we can also get a patch for that
> in for our next release. However, I've left this patch in just in case that
> doesn't actually happen, as the performance improvements for 10G are just
> too good to leave aside for the sake of a 1-line change. Ideally, I'd like
> this go to in, and then be replaced by a "proper" fix.

Now the patch for PMD defaults is integrated:
	http://dpdk.org/ml/archives/dev/2014-October/006511.html
Are you working on getting these defaults in testpmd?

Thanks
-- 
Thomas