DPDK patches and discussions
 help / color / mirror / Atom feed
From: "Van Haaren, Harry" <harry.van.haaren@intel.com>
To: 'Pavan Nikhilesh' <pbhagavatula@caviumnetworks.com>,
	"jerin.jacob@caviumnetworks.com" <jerin.jacob@caviumnetworks.com>,
	"santosh.shukla@caviumnetworks.com"
	<santosh.shukla@caviumnetworks.com>,
	"Eads, Gage" <gage.eads@intel.com>,
	"hemant.agrawal@nxp.com" <hemant.agrawal@nxp.com>,
	"nipun.gupta@nxp.com" <nipun.gupta@nxp.com>,
	"Ma, Liang J" <liang.j.ma@intel.com>
Cc: "dev@dpdk.org" <dev@dpdk.org>
Subject: Re: [dpdk-dev] [PATCH v3 08/12] app/eventdev: add pipeline queue test
Date: Mon, 15 Jan 2018 10:17:50 +0000	[thread overview]
Message-ID: <E923DB57A917B54B9182A2E928D00FA650FEEEE0@IRSMSX102.ger.corp.intel.com> (raw)
In-Reply-To: <20180110200121.sfcs6o73q4tsupmi@Pavan-LT>

> From: Pavan Nikhilesh [mailto:pbhagavatula@caviumnetworks.com]
> Sent: Wednesday, January 10, 2018 8:01 PM
> To: Van Haaren, Harry <harry.van.haaren@intel.com>;
> jerin.jacob@caviumnetworks.com; santosh.shukla@caviumnetworks.com; Eads,
> Gage <gage.eads@intel.com>; hemant.agrawal@nxp.com; nipun.gupta@nxp.com; Ma,
> Liang J <liang.j.ma@intel.com>
> Cc: dev@dpdk.org
> Subject: Re: [dpdk-dev] [PATCH v3 08/12] app/eventdev: add pipeline queue
> test
> 
> Hi Harry,
> 
> Thanks for the review.
> 
> On Wed, Jan 10, 2018 at 04:38:35PM +0000, Van Haaren, Harry wrote:
> > > From: Pavan Nikhilesh [mailto:pbhagavatula@caviumnetworks.com]
> > > Sent: Wednesday, January 10, 2018 2:52 PM
> > > To: jerin.jacob@caviumnetworks.com; santosh.shukla@caviumnetworks.com;
> Van
> > > Haaren, Harry <harry.van.haaren@intel.com>; Eads, Gage
> > > <gage.eads@intel.com>; hemant.agrawal@nxp.com; nipun.gupta@nxp.com; Ma,
> > > Liang J <liang.j.ma@intel.com>
> > > Cc: dev@dpdk.org; Pavan Nikhilesh <pbhagavatula@caviumnetworks.com>
> > > Subject: [dpdk-dev] [PATCH v3 08/12] app/eventdev: add pipeline queue
> test
> > >
> > > This is a pipeline queue test case that aims at testing the following:
> > > 1. Measure the end-to-end performance of an event dev with a ethernet
> dev.
> > > 2. Maintain packet ordering from Rx to Tx.
> > >
> > > The pipeline queue test configures the eventdev with Q queues and P
> ports,
> > > where Q is (nb_ethdev * nb_stages) + nb_ethdev and P is nb_workers.
> >
> > Why (nb_ethdev * nb_stages) number of Queues?
> >
> > I had expected if the test is for eventdev with Q queues, P ports, that
> that Q number of stages is all that is required, (possibly with +1 for TX
> queue, iirc some HW doesn't require the TX Queue).
> >
> > Am I missing something here? I've left the code snippet I don't understand
> below.
> >
> 
> The idea is to reduce the load on ingress event queue (mapped to ethernet Rx
> queue)
> by splitting the traffic across event queues for each ethernet device.
> 
> for example, nb_stages =  2 and nb_ethdev = 2 then
> 
> 	nb_queues = (2 * 2) + 2 = 6 (non atq)
> 	stride = 3 (nb_stages + 1 used for directing each ethernet dev traffic
> 			into a specific event queue)
> 
> queue id's 0,1,2,3,4,5
> 
> This allows us to direct the traffic from eth dev0 to event queue 0 and dev1
> to
> queue 3 based on the stride (dev_id * stride). This intern forms two
> pipelines
> 	ethdev0	0->1->2->tx
> 	ethdev1	3->4->5->tx
> 
> In the absence of this both  ethdev0 and ethdev1 would have to inject to 0th
> queue and this leads to more congestion as the number of ethernet devices
> increase.
> 
> Hope this clears things up.


Ah ok, two parallel pipelines use-case. Makes sense, thanks for explaining.

Acked-by: Harry van Haaren <harry.van.haaren@intel.com>

<snip>

  reply	other threads:[~2018-01-15 10:17 UTC|newest]

Thread overview: 122+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-11-30  7:24 [dpdk-dev] [PATCH 1/4] app/eventdev: modify ethdev setup to support Tx Pavan Nikhilesh
2017-11-30  7:24 ` [dpdk-dev] [PATCH 2/4] app/eventdev: add packet distribution logs Pavan Nikhilesh
2017-12-10 12:31   ` Jerin Jacob
2017-11-30  7:24 ` [dpdk-dev] [PATCH 3/4] app/eventdev: add perf pipeline test Pavan Nikhilesh
2017-11-30 17:15   ` Eads, Gage
2017-12-01  5:19     ` Pavan Nikhilesh Bhagavatula
2017-12-10 12:33   ` Jerin Jacob
2017-12-11 15:20     ` Pavan Nikhilesh Bhagavatula
2017-12-11 15:45       ` Jerin Jacob
2017-11-30  7:24 ` [dpdk-dev] [PATCH 4/4] doc: add perf pipeline test in eventdev test guide Pavan Nikhilesh
2017-12-18 21:43 ` [dpdk-dev] [PATCH v2 01/12] app/eventdev: add packet distribution logs Pavan Nikhilesh
2017-12-18 21:43   ` [dpdk-dev] [PATCH v2 02/12] app/eventdev: add pipeline test setup and destroy Pavan Nikhilesh
2018-01-08 14:04     ` Jerin Jacob
2017-12-18 21:43   ` [dpdk-dev] [PATCH v2 03/12] app/eventdev: add mempool " Pavan Nikhilesh
2018-01-08 14:06     ` Jerin Jacob
2017-12-18 21:43   ` [dpdk-dev] [PATCH v2 04/12] app/eventdev: add pipeline opt dump and check functions Pavan Nikhilesh
2017-12-18 21:43   ` [dpdk-dev] [PATCH v2 05/12] app/eventdev: add perf ethport setup and destroy Pavan Nikhilesh
2018-01-08 14:10     ` Jerin Jacob
2017-12-18 21:43   ` [dpdk-dev] [PATCH v2 06/12] app/eventdev: add event port setup and Rx adapter setup Pavan Nikhilesh
2017-12-18 21:44   ` [dpdk-dev] [PATCH v2 07/12] app/eventdev: launch pipeline lcores Pavan Nikhilesh
2017-12-18 21:44   ` [dpdk-dev] [PATCH v2 08/12] app/eventdev: add pipeline queue test Pavan Nikhilesh
2017-12-18 21:44   ` [dpdk-dev] [PATCH v2 09/12] app/eventdev: add pipeline queue worker functions Pavan Nikhilesh
2017-12-18 21:44   ` [dpdk-dev] [PATCH v2 10/12] app/eventdev: add pipeline atq test Pavan Nikhilesh
2018-01-08 14:15     ` Jerin Jacob
2017-12-18 21:44   ` [dpdk-dev] [PATCH v2 11/12] app/eventdev: add pipeline atq worker functions Pavan Nikhilesh
2017-12-18 21:44   ` [dpdk-dev] [PATCH v2 12/12] doc: add pipeline test in eventdev test guide Pavan Nikhilesh
2018-01-10 14:51 ` [dpdk-dev] [PATCH v3 01/12] app/eventdev: add packet distribution logs Pavan Nikhilesh
2018-01-10 14:51   ` [dpdk-dev] [PATCH v3 02/12] app/eventdev: add pipeline test setup and destroy Pavan Nikhilesh
2018-01-10 14:51   ` [dpdk-dev] [PATCH v3 03/12] app/eventdev: add mempool " Pavan Nikhilesh
2018-01-10 14:51   ` [dpdk-dev] [PATCH v3 04/12] app/eventdev: add pipeline opt dump and check functions Pavan Nikhilesh
2018-01-10 14:51   ` [dpdk-dev] [PATCH v3 05/12] app/eventdev: add perf ethport setup and destroy Pavan Nikhilesh
2018-01-10 14:51   ` [dpdk-dev] [PATCH v3 06/12] app/eventdev: add event port setup and Rx adapter setup Pavan Nikhilesh
2018-01-10 14:51   ` [dpdk-dev] [PATCH v3 07/12] app/eventdev: launch pipeline lcores Pavan Nikhilesh
2018-01-10 14:51   ` [dpdk-dev] [PATCH v3 08/12] app/eventdev: add pipeline queue test Pavan Nikhilesh
2018-01-10 16:38     ` Van Haaren, Harry
2018-01-10 20:01       ` Pavan Nikhilesh
2018-01-15 10:17         ` Van Haaren, Harry [this message]
2018-01-10 14:51   ` [dpdk-dev] [PATCH v3 09/12] app/eventdev: add pipeline queue worker functions Pavan Nikhilesh
2018-01-10 16:45     ` Van Haaren, Harry
2018-01-10 16:53       ` Van Haaren, Harry
2018-01-10 20:17         ` Pavan Nikhilesh
2018-01-11 12:17           ` Van Haaren, Harry
2018-01-11 13:52             ` Pavan Nikhilesh
2018-01-11 15:47               ` Van Haaren, Harry
2018-01-10 14:51   ` [dpdk-dev] [PATCH v3 10/12] app/eventdev: add pipeline atq test Pavan Nikhilesh
2018-01-10 14:51   ` [dpdk-dev] [PATCH v3 11/12] app/eventdev: add pipeline atq worker functions Pavan Nikhilesh
2018-01-10 14:51   ` [dpdk-dev] [PATCH v3 12/12] doc: add pipeline test in eventdev test guide Pavan Nikhilesh
2018-01-12 16:44 ` [dpdk-dev] [PATCH v4 01/13] app/eventdev: add packet distribution logs Pavan Nikhilesh
2018-01-12 16:44   ` [dpdk-dev] [PATCH v4 02/13] app/eventdev: add pipeline test setup and destroy Pavan Nikhilesh
2018-01-12 16:44   ` [dpdk-dev] [PATCH v4 03/13] app/eventdev: add mempool " Pavan Nikhilesh
2018-01-12 16:44   ` [dpdk-dev] [PATCH v4 04/13] app/eventdev: add pipeline opt dump and check functions Pavan Nikhilesh
2018-01-16 11:54     ` Van Haaren, Harry
2018-01-17 17:19       ` Jerin Jacob
2018-01-12 16:44   ` [dpdk-dev] [PATCH v4 05/13] app/eventdev: add pipeline ethport setup and destroy Pavan Nikhilesh
2018-01-16 11:54     ` Van Haaren, Harry
2018-01-12 16:44   ` [dpdk-dev] [PATCH v4 06/13] app/eventdev: add event port setup and Rx adapter setup Pavan Nikhilesh
2018-01-16 11:54     ` Van Haaren, Harry
2018-01-12 16:44   ` [dpdk-dev] [PATCH v4 07/13] app/eventdev: add Tx service setup Pavan Nikhilesh
2018-01-16 11:57     ` Van Haaren, Harry
2018-01-12 16:44   ` [dpdk-dev] [PATCH v4 08/13] app/eventdev: launch pipeline lcores Pavan Nikhilesh
2018-01-16 11:57     ` Van Haaren, Harry
2018-01-12 16:44   ` [dpdk-dev] [PATCH v4 09/13] app/eventdev: add pipeline queue test Pavan Nikhilesh
2018-01-16 11:58     ` Van Haaren, Harry
2018-01-12 16:44   ` [dpdk-dev] [PATCH v4 10/13] app/eventdev: add pipeline queue worker functions Pavan Nikhilesh
2018-01-16 12:05     ` Van Haaren, Harry
2018-01-16 12:31       ` Pavan Nikhilesh
2018-01-12 16:44   ` [dpdk-dev] [PATCH v4 11/13] app/eventdev: add pipeline atq test Pavan Nikhilesh
2018-01-16 12:06     ` Van Haaren, Harry
2018-01-12 16:44   ` [dpdk-dev] [PATCH v4 12/13] app/eventdev: add pipeline atq worker functions Pavan Nikhilesh
2018-01-16 12:06     ` Van Haaren, Harry
2018-01-12 16:44   ` [dpdk-dev] [PATCH v4 13/13] doc: add pipeline test in eventdev test guide Pavan Nikhilesh
2018-01-15 11:16     ` Kovacevic, Marko
2018-01-15 16:16     ` Jerin Jacob
2018-01-16 15:17 ` [dpdk-dev] [PATCH v5 01/14] app/eventdev: add packet distribution logs Pavan Nikhilesh
2018-01-16 15:17   ` [dpdk-dev] [PATCH v5 02/14] app/eventdev: add pipeline test setup and destroy Pavan Nikhilesh
2018-01-16 15:17   ` [dpdk-dev] [PATCH v5 03/14] app/eventdev: add mempool " Pavan Nikhilesh
2018-01-16 15:17   ` [dpdk-dev] [PATCH v5 04/14] app/eventdev: add pipeline opt dump and check functions Pavan Nikhilesh
2018-01-16 15:17   ` [dpdk-dev] [PATCH v5 05/14] app/eventdev: add pipeline ethport setup and destroy Pavan Nikhilesh
2018-01-16 15:17   ` [dpdk-dev] [PATCH v5 06/14] app/eventdev: add event port setup and Rx adapter setup Pavan Nikhilesh
2018-01-16 15:17   ` [dpdk-dev] [PATCH v5 07/14] app/eventdev: add Tx service setup Pavan Nikhilesh
2018-01-16 15:17   ` [dpdk-dev] [PATCH v5 08/14] app/eventdev: launch pipeline lcores Pavan Nikhilesh
2018-01-16 15:17   ` [dpdk-dev] [PATCH v5 09/14] app/eventdev: add pipeline queue test Pavan Nikhilesh
2018-01-16 15:17   ` [dpdk-dev] [PATCH v5 10/14] app/eventdev: add pipeline queue worker functions Pavan Nikhilesh
2018-01-16 15:17   ` [dpdk-dev] [PATCH v5 11/14] app/eventdev: add pipeline atq test Pavan Nikhilesh
2018-01-16 15:17   ` [dpdk-dev] [PATCH v5 12/14] app/eventdev: add pipeline atq worker functions Pavan Nikhilesh
2018-01-16 15:17   ` [dpdk-dev] [PATCH v5 13/14] doc: add pipeline test in eventdev test guide Pavan Nikhilesh
2018-01-16 15:20 ` [dpdk-dev] [PATCH v5 14/14] doc: update 18.02 release notes Pavan Nikhilesh
2018-01-16 15:39 ` [dpdk-dev] [PATCH v6 01/14] app/eventdev: add packet distribution logs Pavan Nikhilesh
2018-01-16 15:39   ` [dpdk-dev] [PATCH v6 02/14] app/eventdev: add pipeline test setup and destroy Pavan Nikhilesh
2018-01-16 15:39   ` [dpdk-dev] [PATCH v6 03/14] app/eventdev: add mempool " Pavan Nikhilesh
2018-01-16 15:39   ` [dpdk-dev] [PATCH v6 04/14] app/eventdev: add pipeline opt dump and check functions Pavan Nikhilesh
2018-01-16 15:39   ` [dpdk-dev] [PATCH v6 05/14] app/eventdev: add pipeline ethport setup and destroy Pavan Nikhilesh
2018-01-16 15:39   ` [dpdk-dev] [PATCH v6 06/14] app/eventdev: add event port setup and Rx adapter setup Pavan Nikhilesh
2018-01-16 15:39   ` [dpdk-dev] [PATCH v6 07/14] app/eventdev: add Tx service setup Pavan Nikhilesh
2018-01-16 15:39   ` [dpdk-dev] [PATCH v6 08/14] app/eventdev: launch pipeline lcores Pavan Nikhilesh
2018-01-16 15:39   ` [dpdk-dev] [PATCH v6 09/14] app/eventdev: add pipeline queue test Pavan Nikhilesh
2018-01-16 15:39   ` [dpdk-dev] [PATCH v6 10/14] app/eventdev: add pipeline queue worker functions Pavan Nikhilesh
2018-01-16 15:40   ` [dpdk-dev] [PATCH v6 11/14] app/eventdev: add pipeline atq test Pavan Nikhilesh
2018-01-16 15:40   ` [dpdk-dev] [PATCH v6 12/14] app/eventdev: add pipeline atq worker functions Pavan Nikhilesh
2018-01-16 15:40   ` [dpdk-dev] [PATCH v6 13/14] doc: add pipeline test in eventdev test guide Pavan Nikhilesh
2018-01-16 15:40   ` [dpdk-dev] [PATCH v6 14/14] doc: update 18.02 release notes Pavan Nikhilesh
2018-01-16 16:04     ` Mcnamara, John
2018-01-16 17:51       ` Pavan Nikhilesh
2018-01-16 17:45 ` [dpdk-dev] [PATCH v7 01/15] app/eventdev: add packet distribution logs Pavan Nikhilesh
2018-01-16 17:45   ` [dpdk-dev] [PATCH v7 02/15] app/eventdev: add pipeline test setup and destroy Pavan Nikhilesh
2018-01-16 17:45   ` [dpdk-dev] [PATCH v7 03/15] app/eventdev: add mempool " Pavan Nikhilesh
2018-01-16 17:45   ` [dpdk-dev] [PATCH v7 04/15] app/eventdev: add pipeline opt dump and check functions Pavan Nikhilesh
2018-01-16 17:45   ` [dpdk-dev] [PATCH v7 05/15] app/eventdev: add pipeline ethport setup and destroy Pavan Nikhilesh
2018-01-16 17:45   ` [dpdk-dev] [PATCH v7 06/15] app/eventdev: add event port setup and Rx adapter setup Pavan Nikhilesh
2018-01-16 17:45   ` [dpdk-dev] [PATCH v7 07/15] app/eventdev: add Tx service setup Pavan Nikhilesh
2018-01-16 17:46   ` [dpdk-dev] [PATCH v7 08/15] app/eventdev: launch pipeline lcores Pavan Nikhilesh
2018-01-16 17:46   ` [dpdk-dev] [PATCH v7 09/15] app/eventdev: add pipeline queue test Pavan Nikhilesh
2018-01-16 17:46   ` [dpdk-dev] [PATCH v7 10/15] app/eventdev: add pipeline queue worker functions Pavan Nikhilesh
2018-01-16 17:46   ` [dpdk-dev] [PATCH v7 11/15] app/eventdev: add pipeline atq test Pavan Nikhilesh
2018-01-16 17:46   ` [dpdk-dev] [PATCH v7 12/15] app/eventdev: add pipeline atq worker functions Pavan Nikhilesh
2018-01-16 17:46   ` [dpdk-dev] [PATCH v7 13/15] doc: add pipeline queue test in eventdev test guide Pavan Nikhilesh
     [not found]     ` <CY4PR07MB3464D865D1B9CA42596A242380E90@CY4PR07MB3464.namprd07.prod.outlook.com>
2018-01-17 17:12       ` Mcnamara, John
2018-01-16 17:46   ` [dpdk-dev] [PATCH v7 14/15] doc: add pipeline atq " Pavan Nikhilesh
     [not found]     ` <CY4PR07MB346409AFA54FC1836195EA0A80E90@CY4PR07MB3464.namprd07.prod.outlook.com>
2018-01-17 17:12       ` Mcnamara, John
2018-01-16 17:46   ` [dpdk-dev] [PATCH v7 15/15] doc: update 18.02 release notes Pavan Nikhilesh
2018-01-17  5:47     ` [dpdk-dev] Fw: " Bhagavatula, Pavan
2018-01-17 17:14       ` [dpdk-dev] " Mcnamara, John

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=E923DB57A917B54B9182A2E928D00FA650FEEEE0@IRSMSX102.ger.corp.intel.com \
    --to=harry.van.haaren@intel.com \
    --cc=dev@dpdk.org \
    --cc=gage.eads@intel.com \
    --cc=hemant.agrawal@nxp.com \
    --cc=jerin.jacob@caviumnetworks.com \
    --cc=liang.j.ma@intel.com \
    --cc=nipun.gupta@nxp.com \
    --cc=pbhagavatula@caviumnetworks.com \
    --cc=santosh.shukla@caviumnetworks.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).