From: Jianbo Liu <jianbo.liu@linaro.org>
To: "Ananyev, Konstantin" <konstantin.ananyev@intel.com>
Cc: "Yao, Lei A" <lei.a.yao@intel.com>, "dev@dpdk.org" <dev@dpdk.org>,
"Zhang, Helin" <helin.zhang@intel.com>,
"Wu, Jingjing" <jingjing.wu@intel.com>
Subject: Re: [dpdk-dev] [PATCH] i40e: enable i40e pmd on ARM platform
Date: Wed, 3 Aug 2016 17:36:37 +0800 [thread overview]
Message-ID: <CAP4Qi3-5V-7hmd4EFdYardsFa8WVwBk_+DgtzzoH0s2RGPMJpw@mail.gmail.com> (raw)
In-Reply-To: <2601191342CEEE43887BDE71AB97725836B8D25C@irsmsx105.ger.corp.intel.com>
On 3 August 2016 at 16:29, Ananyev, Konstantin
<konstantin.ananyev@intel.com> wrote:
>
> Hi Jianbo,
>
>> > Hi, Jianbo
>> >
>> > I have tested you patch on my X86 platform, the single core performance for Non-vector PMD will have about 1Mpps drop
>> > Non-vector PMD single core performance with patch : ~33.9 Mpps
>> > Non-vector PMD single core performance without patch : ~35.1 Mpps
>> > Is there any way to avoid such performance drop on X86? Thanks.
>> >
>>
>> I think we can place a compiling condition before rte_rmb() to avoid performance decrease on x86.
>> For example: #if defined(RTE_ARCH_ARM) || defined(RTE_ARCH_ARM64)
>
> I suppose you can use rte_smp_rmb() here?
Great. Thank Konstantin.
I'll send v2.
Jianbo
next prev parent reply other threads:[~2016-08-03 9:36 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-08-02 6:58 Jianbo Liu
[not found] ` <82F45D86ADE5454A95A89742C8D1410E0330A4B6@shsmsx102.ccr.corp.intel.com>
2016-08-03 3:26 ` Yao, Lei A
2016-08-03 6:02 ` Jianbo Liu
2016-08-03 7:58 ` Thomas Monjalon
2016-08-03 9:33 ` Jianbo Liu
2016-08-03 8:29 ` Ananyev, Konstantin
2016-08-03 9:36 ` Jianbo Liu [this message]
2016-08-03 10:12 ` [dpdk-dev] [PATCH v2] " Jianbo Liu
2016-08-05 9:06 ` [dpdk-dev] [PATCH v3] " Jianbo Liu
2016-09-23 1:13 ` Zhang, Qi Z
2016-09-27 13:39 ` Bruce Richardson
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