From: Vlad Zolotarov <vladz@cloudius-systems.com>
To: Bruce Richardson <bruce.richardson@intel.com>
Cc: "dev@dpdk.org" <dev@dpdk.org>
Subject: Re: [dpdk-dev] DCA
Date: Tue, 21 Apr 2015 11:51:40 +0300 [thread overview]
Message-ID: <55360F9C.7070601@cloudius-systems.com> (raw)
In-Reply-To: <20150420105020.GB9280@bricha3-MOBL3>
On 04/20/15 13:50, Bruce Richardson wrote:
> On Mon, Apr 20, 2015 at 01:07:59PM +0300, Vlad Zolotarov wrote:
>> Hi,
>> I would like to ask if there is any reason why DPDK doesn't have support for
>> DCA feature?
>>
>> thanks,
>> vlad
> With modern platforms with DDIO the data written by the NIC automatically goes
> into the cache of the CPU without us needing to use DCA.
Thanks for a reply, Bruce.
One question though. According to DDIO documentation it only affects the
CPUs "local" relatively to the NIC. DCA, on the other hand may be
configured to work with any CPU. Modern platforms usually have a few
NUMA nodes and requirement of binding network handling threads only to
CPUs "local" to the NIC is very limiting.
Could u, pls., comment on this?
thanks in advance,
vlad
>
> /Bruce
next prev parent reply other threads:[~2015-04-21 8:51 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-04-20 10:07 Vlad Zolotarov
2015-04-20 10:50 ` Bruce Richardson
2015-04-21 8:51 ` Vlad Zolotarov [this message]
2015-04-21 9:27 ` Bruce Richardson
2015-04-21 9:47 ` Vlad Zolotarov
2015-04-21 17:44 ` Matthew Hall
2015-04-22 9:10 ` Bruce Richardson
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