DPDK patches and discussions
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From: "Yigit, Ferruh" <ferruh.yigit@linux.intel.com>
To: David Marchand <david.marchand@redhat.com>, dev@dpdk.org
Cc: aconole@redhat.com
Subject: Re: [dpdk-dev] [PATCH 0/4] Extend --lcores to run on cores > RTE_MAX_LCORE
Date: Mon, 20 Jan 2020 18:37:16 +0000
Message-ID: <a2666936-c16e-8ede-7cbf-f430627472fc@linux.intel.com> (raw)
In-Reply-To: <20191202153559.9709-1-david.marchand@redhat.com>

On 12/2/2019 3:35 PM, David Marchand wrote:
> We are currently stuck with no option but recompile a DPDK if the system
> has more cores than RTE_MAX_LCORE.
> A bit of a pity when you get a system with more than 200+ cores and your
> testpmd has been built and packaged with RTE_MAX_LCORE == 128.

Just for clarification, in this case the DPDK application will work but will
only use RTE_MAX_LCORE cores, right? You need to compile to use all available cores.

Are cores more than RTE_MAX_LCORE usable after this patch?

> The --lcores does not need to care about the underlying cores, remove
> this limitation.

+1 to remove limit in --lcores, but I didn't make it work with this patchset, I
may be missing something, I tried by setting the "RTE_MAX_LCORE=32", in this
case should '--lcores "(30-40)@(10-20)"' work?

  parent reply index

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-12-02 15:35 David Marchand
2019-12-02 15:41 ` [dpdk-dev] [PATCH 1/4] eal/windows: fix cpuset macro name David Marchand
2019-12-02 15:42 ` [dpdk-dev] [PATCH 2/4] eal: do not cache lcore detection state David Marchand
2019-12-02 15:42 ` [dpdk-dev] [PATCH 3/4] eal: display all detected cores at startup David Marchand
2019-12-02 15:42 ` [dpdk-dev] [PATCH 4/4] eal: remove limitation on cpuset with --lcores David Marchand
2020-01-14 12:58 ` [dpdk-dev] [PATCH 0/4] Extend --lcores to run on cores > RTE_MAX_LCORE David Marchand
2020-01-14 15:32   ` [dpdk-dev] [PATCH 0/4] Extend --lcores to run on cores >RTE_MAX_LCORE Morten Brørup
2020-01-20 18:37 ` Yigit, Ferruh [this message]
2020-01-20 19:35   ` [dpdk-dev] [PATCH 0/4] Extend --lcores to run on cores > RTE_MAX_LCORE David Marchand
2020-01-21  0:24 ` Thomas Monjalon
2020-02-21  8:04   ` Thomas Monjalon
2020-02-21  8:19     ` Song, Keesang
2020-02-21  9:40       ` David Marchand
2020-02-21 14:48         ` Aaron Conole
2020-02-21 16:38           ` Stephen Hemminger

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