From: Olivier Matz <olivier.matz@6wind.com>
To: "Ananyev, Konstantin" <konstantin.ananyev@intel.com>,
"Wiles, Keith" <keith.wiles@intel.com>,
"dev@dpdk.org" <dev@dpdk.org>
Subject: Re: [PATCH v2] mbuf:rearrange mbuf to be more mbuf chain friendly
Date: Mon, 27 Jun 2016 10:27:17 +0200 [thread overview]
Message-ID: <5770E365.4060703@6wind.com> (raw)
In-Reply-To: <2601191342CEEE43887BDE71AB97725836B7715C@irsmsx105.ger.corp.intel.com>
On 06/27/2016 10:21 AM, Ananyev, Konstantin wrote:
>
>
>> -----Original Message-----
>> From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Keith Wiles
>> Sent: Saturday, June 25, 2016 4:56 PM
>> To: dev@dpdk.org
>> Subject: [dpdk-dev] [PATCH v2] mbuf:rearrange mbuf to be more mbuf chain friendly
>>
>> Move the next pointer to the first cacheline of the rte_mbuf structure
>> and move the offload values to the second cacheline to give better
>> performance to applications using chained mbufs.
>>
>> Enabled by a configuration option CONFIG_RTE_MBUF_CHAIN_FRIENDLY default
>> is set to No.
>
> First, it would make ixgbe and i40e vector RX functions to work incorrectly.
> Second, I don't think we can afford to allow people swap mbuf fields in the way they like.
> Otherwise we'll end-up with totally unmaintainable code pretty soon.
> So NACK.
+1
next prev parent reply other threads:[~2016-06-27 8:27 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-25 15:29 [PATCH] mbuf:rearrange mbuf to be more mbuf chain friendly Keith Wiles
2016-06-25 15:48 ` Wiles, Keith
2016-06-25 15:55 ` [PATCH v2] " Keith Wiles
2016-06-27 8:21 ` Ananyev, Konstantin
2016-06-27 8:27 ` Olivier Matz [this message]
2016-06-27 9:05 ` Thomas Monjalon
2016-06-27 13:06 ` Wiles, Keith
2016-06-27 14:30 ` Thomas Monjalon
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