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From: "Pattan, Reshma" <reshma.pattan@intel.com>
To: "Wang, Shawn" <xingbow@amazon.com>, "dev@dpdk.org" <dev@dpdk.org>
Thread-Topic: Newbie question about distributor library
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Date: Sun, 12 Oct 2014 09:00:35 +0000
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Subject: Re: [dpdk-dev] Newbie question about distributor library
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Hi ,

Distributor was running as part of Rx core.

Thanks,
Reshma


> -----Original Message-----
> From: Wang, Shawn [mailto:xingbow@amazon.com]
> Sent: Friday, October 10, 2014 10:06 PM
> To: Pattan, Reshma; dev@dpdk.org
> Subject: RE: Newbie question about distributor library
>=20
> 15.5 mpps is amazing.
> Does the RX core run the distributor or there is another distributor core=
?
>=20
> Thanks.
> ________________________________________
> From: Pattan, Reshma [reshma.pattan@intel.com]
> Sent: Friday, October 10, 2014 12:47 AM
> To: Wang, Shawn; dev@dpdk.org
> Subject: RE: Newbie question about distributor library
>=20
> > -----Original Message-----
> > From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Wang, Shawn
> > Sent: Thursday, October 9, 2014 7:00 PM
> > To: dev@dpdk.org
> > Subject: [dpdk-dev] Newbie question about distributor library
> >
> > Hi:
> >
> > I am reading document about distributor library which is added in DPDK =
1.7.
> > The document mentioned the packets are dynamically load balanced
> > between a set of worker cores.
> > So I am wondering is this the only reason we need distributor library?
> > What else could it give us?
> > Do we have any performance number on this new library?
> >
> > Thanks.
>=20
> Hi,
>=20
> Distributor library  only takes care of load distribution based on flow t=
ype i.e.
> based on rss ( which is calculated based on 5 tuple of the packet) value =
of mbuf
> to workers. Packets with same rss will be given to same worker. Hence dif=
ferent
> flows goes to different workers.
>=20
> 15.5 mpps was the performance  we achieved  with 8 worker cores, 1 Rx cor=
e
> and 1 TX core using sample application.
>=20
> Thanks,
> Reshma
>=20