On Tue, Dec 08, 2015 at 04:41:37PM +0000, Gray, Mark D wrote: > > -----Original Message----- > > From: dev [mailto:dev-boun...@openvswitch.org] On Behalf Of Kevin > > Traynor > > Sent: Monday, December 7, 2015 5:58 PM > > To: dev@openvswitch.org > > Subject: [ovs-dev] [PATCH] INSTALL.DPDK.md: Clarify DPDK arguments. > > > > Add some information about the DPDK -c and -n parameters. > > > > Signed-off-by: Kevin Traynor <kevin.tray...@intel.com> > > Reported-by: Zoltan Kiss <zoltan.k...@linaro.org> > > --- > > INSTALL.DPDK.md | 14 ++++++++++++-- > > 1 files changed, 12 insertions(+), 2 deletions(-) > > > > diff --git a/INSTALL.DPDK.md b/INSTALL.DPDK.md index 96b686c..ee016da > > 100644 > > --- a/INSTALL.DPDK.md > > +++ b/INSTALL.DPDK.md > > @@ -145,8 +145,18 @@ Using the DPDK with ovs-vswitchd: > > > > DPDK configuration arguments can be passed to vswitchd via `--dpdk` > > argument. This needs to be first argument passed to vswitchd process. > > - dpdk arg -c is ignored by ovs-dpdk, but it is a required parameter > > - for dpdk initialization. > > + The DPDK configuration arguments are passed to DPDK during DPDK > > + initialization. > > + > > + The DPDK -c coremask is a required argument. To avoid wasted resources > > + only one core should be set. The standard OVS threads (e.g. main > > + process, handler, revalidator) will run on the core that is specified. > > Might be worth mentioning that then there is a corresponding potential > decrease > in performance of revalidation and flow handling.
With the kernel datapath, OVS sets up flows and revalidates them on multiple cores. You're saying that with DPDK it only uses one core? Why? _______________________________________________ dev mailing list dev@openvswitch.org http://openvswitch.org/mailman/listinfo/dev
