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From: Jerin Jacob <jerinjacobk@gmail.com>
To: Pavan Nikhilesh Bhagavatula <pbhagavatula@marvell.com>
Cc: Feifei Wang <feifei.wang2@arm.com>,
	Jerin Jacob Kollanukkaran <jerinj@marvell.com>,
	 "dev@dpdk.org" <dev@dpdk.org>,
	 "Honnappa.Nagarahalli@arm.com" <Honnappa.Nagarahalli@arm.com>,
	"nd@arm.com" <nd@arm.com>, Ruifeng Wang <ruifeng.wang@arm.com>
Subject: Re: [dpdk-dev] [EXT] [PATCH v1 5/5] app/eventdev: remove unnecessary barriers for order test
Date: Tue, 26 Jan 2021 21:26:41 +0530
Message-ID: <CALBAE1PQ-5pmrH_Gt1Fm0t1aExh_eECb9Z8vc6Fs_KqM114bOw@mail.gmail.com> (raw)
In-Reply-To: <CO6PR18MB3828EC523765981ECD6A607ADEBD9@CO6PR18MB3828.namprd18.prod.outlook.com>

On Mon, Jan 25, 2021 at 11:19 PM Pavan Nikhilesh Bhagavatula
<pbhagavatula@marvell.com> wrote:
>
> >For the wmb in order_process_stage_1 and
> >order_process_stage_invalid in
> >the order test, they can be removed. This is because when the test
> >results
> >are wrong, the worker core writes 'true' to t->err. Then other worker
> >cores, producer cores and the main core will load the 'error' index and
> >stop testing. So, for the worker cores, no other storing operation needs
> >to be guaranteed after this when errors happen.
> >
> >Signed-off-by: Feifei Wang <feifei.wang2@arm.com>
> >Reviewed-by: Ruifeng Wang <ruifeng.wang@arm.com>
> Acked-by: Pavan Nikhilesh <pbhagavatula@marvell.com>


Series applied to dpdk-next-eventdev/for-main. Thanks.


> >---
> > app/test-eventdev/test_order_common.h | 2 --
> > 1 file changed, 2 deletions(-)
> >
> >diff --git a/app/test-eventdev/test_order_common.h b/app/test-
> >eventdev/test_order_common.h
> >index 5ef840493..cd9d6009e 100644
> >--- a/app/test-eventdev/test_order_common.h
> >+++ b/app/test-eventdev/test_order_common.h
> >@@ -104,7 +104,6 @@ order_process_stage_1(struct test_order
> >*const t,
> >                       flow, *order_mbuf_seqn(t, ev->mbuf),
> >                       expected_flow_seq[flow]);
> >               t->err = true;
> >-              rte_smp_wmb();
> >       }
> >       /*
> >        * Events from an atomic flow of an event queue can be
> >scheduled only to
> >@@ -123,7 +122,6 @@ order_process_stage_invalid(struct test_order
> >*const t,
> > {
> >       evt_err("invalid queue %d", ev->queue_id);
> >       t->err = true;
> >-      rte_smp_wmb();
> > }
> >
> > #define ORDER_WORKER_INIT\
> >--
> >2.25.1
>

      reply	other threads:[~2021-01-26 15:56 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-01-14  7:08 [dpdk-dev] [PATCH v1 0/5] refactor smp barriers in app/eventdev Feifei Wang
2021-01-14  7:08 ` [dpdk-dev] [PATCH v1 1/5] app/eventdev: fix SMP barrier bugs for perf test Feifei Wang
2021-01-25 17:50   ` [dpdk-dev] [EXT] " Pavan Nikhilesh Bhagavatula
2021-01-14  7:08 ` [dpdk-dev] [PATCH v1 2/5] app/eventdev: remove unnecessary barriers " Feifei Wang
2021-01-25 17:48   ` [dpdk-dev] [EXT] " Pavan Nikhilesh Bhagavatula
2021-01-14  7:08 ` [dpdk-dev] [PATCH v1 3/5] app/eventdev: replace wmb with thread fence " Feifei Wang
2021-01-25 17:50   ` [dpdk-dev] [EXT] " Pavan Nikhilesh Bhagavatula
2021-01-14  7:08 ` [dpdk-dev] [PATCH v1 4/5] app/eventdev: remove unnecessary barriers for pipeline test Feifei Wang
2021-01-25 17:50   ` [dpdk-dev] [EXT] " Pavan Nikhilesh Bhagavatula
2021-01-14  7:08 ` [dpdk-dev] [PATCH v1 5/5] app/eventdev: remove unnecessary barriers for order test Feifei Wang
2021-01-25 17:49   ` [dpdk-dev] [EXT] " Pavan Nikhilesh Bhagavatula
2021-01-26 15:56     ` Jerin Jacob [this message]

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