[dpdk-dev] [PATCH v2] app/testpmd: add mempool bulk get for txonly mode

Jerin Jacob Kollanukkaran jerinj at marvell.com
Tue Mar 26 14:16:34 CET 2019


On Tue, 2019-03-26 at 12:06 +0000, Pavan Nikhilesh Bhagavatula wrote:
> > -----Original Message-----
> > From: Iremonger, Bernard <bernard.iremonger at intel.com>
> > Sent: Tuesday, March 26, 2019 5:20 PM
> > To: Thomas Monjalon <thomas at monjalon.net>; Pavan Nikhilesh
> > Bhagavatula <pbhagavatula at marvell.com>
> > Cc: dev at dpdk.org; Jerin Jacob Kollanukkaran <jerinj at marvell.com>;
> > arybchenko at solarflare.com; Yigit, Ferruh <ferruh.yigit at intel.com>
> > Subject: [EXT] RE: [dpdk-dev] [PATCH v2] app/testpmd: add mempool
> > bulk
> > get for txonly mode
> > 
> > 
> > > Then we'll be able to examine it and check the performance.
> > > 
> > > We need to have more tests with more hardware in order to better
> > > understand the performance improvement.
> > > For info, a degradation is seen in Mellanox lab.
> 
> The only real change was that we introduced mempool_bulk get to avoid
> multiple calls to mempool layer. 
> I don't see how that would degrade the performance.

I don't think, it is CPU instruction based degradation as it gives
better performance on x86 and arm64. Adding Mellanox maintainers to
comment on, How does it impact on Mellanox NIC hardware?





More information about the dev mailing list