From: Thomas Monjalon <thomas.monjalon@6wind.com>
To: Jianfeng Tan <jianfeng.tan@intel.com>
Cc: Bruce Richardson <bruce.richardson@intel.com>,
dev@dpdk.org, david.marchand@6wind.com, pmatilai@redhat.com
Subject: Re: [dpdk-dev] [PATCH v4] eal: restrict cores auto detection
Date: Wed, 21 Dec 2016 15:31:39 +0100 [thread overview]
Message-ID: <22155206.MX3x2ThXoG@xps13> (raw)
In-Reply-To: <20161209151451.GB14536@bricha3-MOBL3.ger.corp.intel.com>
2016-12-09 15:14, Bruce Richardson:
> On Thu, Dec 08, 2016 at 07:19:41PM +0100, Thomas Monjalon wrote:
> > 2016-12-02 17:48, Jianfeng Tan:
> > > This patch uses pthread_getaffinity_np() to narrow down used
> > > cores when none of below options is specified:
> > > * coremask (-c)
> > > * corelist (-l)
> > > * and coremap (--lcores)
> > >
> > > The purpose of this patch is to leave out these core related options
> > > when DPDK applications are deployed under container env, so that
> > > users do not need decide the core related parameters when developing
> > > applications. Instead, when applications are deployed in containers,
> > > use cpu-set to constrain which cores can be used inside this container
> > > instance. And DPDK application inside containers just rely on this
> > > auto detect mechanism to start polling threads.
> > >
> > > Note: previously, some users are using isolated CPUs, which could
> > > be excluded by default. Please add commands like taskset to use
> > > those cores.
> > >
> > > Test example:
> > > $ taskset 0xc0000 ./examples/helloworld/build/helloworld -m 1024
> >
> > Bruce, what do you think of this version?
> > It requires taskset only if -c, -l and --lcores are not used.
> >
> I'm fine with that since it maintains backward compatibilty for those
> options.
>
> Acked-by: Bruce Richardson <bruce.richardson@intel.com>
Applied with "s/specified/parsed/", thanks
prev parent reply other threads:[~2016-12-21 14:31 UTC|newest]
Thread overview: 63+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-24 18:49 [dpdk-dev] [RFC] eal: add cgroup-aware resource self discovery Jianfeng Tan
2016-01-25 13:46 ` Neil Horman
2016-01-26 2:22 ` Tan, Jianfeng
2016-01-26 14:19 ` Neil Horman
2016-01-27 12:02 ` Tan, Jianfeng
2016-01-27 17:30 ` Neil Horman
2016-01-29 11:22 ` [dpdk-dev] [PATCH] eal: make resource initialization more robust Jianfeng Tan
2016-02-01 18:08 ` Neil Horman
2016-02-22 6:08 ` Tan, Jianfeng
2016-02-22 13:18 ` Neil Horman
2016-02-28 21:12 ` Thomas Monjalon
2016-02-29 1:50 ` Tan, Jianfeng
2016-03-04 10:05 ` [dpdk-dev] [PATCH] eal: add option --avail-cores to detect lcores Jianfeng Tan
2016-03-08 8:54 ` Panu Matilainen
2016-03-08 17:38 ` Tan, Jianfeng
2016-03-09 13:05 ` Panu Matilainen
2016-03-09 13:53 ` Tan, Jianfeng
2016-03-09 14:01 ` Ananyev, Konstantin
2016-03-09 14:17 ` Tan, Jianfeng
2016-03-09 14:44 ` Ananyev, Konstantin
2016-03-09 14:55 ` Tan, Jianfeng
2016-03-09 15:17 ` Ananyev, Konstantin
2016-03-09 17:45 ` Tan, Jianfeng
2016-03-09 19:33 ` Ananyev, Konstantin
2016-03-10 1:36 ` Tan, Jianfeng
2016-05-18 12:46 ` David Marchand
2016-05-19 2:25 ` Tan, Jianfeng
2016-06-30 13:43 ` Thomas Monjalon
2016-07-01 0:52 ` Tan, Jianfeng
2016-04-26 12:39 ` Tan, Jianfeng
2016-03-04 10:58 ` [dpdk-dev] [PATCH] eal: make hugetlb initialization more robust Jianfeng Tan
2016-03-08 1:42 ` [dpdk-dev] [PATCH v2] " Jianfeng Tan
2016-03-08 8:46 ` Tan, Jianfeng
2016-05-04 11:07 ` Sergio Gonzalez Monroy
2016-05-04 11:28 ` Tan, Jianfeng
2016-05-04 12:25 ` Sergio Gonzalez Monroy
2016-05-09 10:48 ` [dpdk-dev] [PATCH v3] " Jianfeng Tan
2016-05-10 8:54 ` Sergio Gonzalez Monroy
2016-05-10 9:11 ` Tan, Jianfeng
2016-05-12 0:44 ` [dpdk-dev] [PATCH v4] " Jianfeng Tan
2016-05-17 16:39 ` David Marchand
2016-05-18 7:56 ` Sergio Gonzalez Monroy
2016-05-18 9:34 ` David Marchand
2016-05-19 2:00 ` Tan, Jianfeng
2016-05-17 16:40 ` Thomas Monjalon
2016-05-18 8:06 ` Sergio Gonzalez Monroy
2016-05-18 9:38 ` David Marchand
2016-05-19 2:11 ` Tan, Jianfeng
2016-05-31 3:37 ` [dpdk-dev] [PATCH v5] eal: fix allocating all free hugepages Jianfeng Tan
2016-06-06 2:49 ` Pei, Yulong
2016-06-08 11:27 ` Sergio Gonzalez Monroy
2016-06-30 13:34 ` Thomas Monjalon
2016-08-31 3:07 ` [dpdk-dev] [PATCH v2] eal: restrict cores detection Jianfeng Tan
2016-08-31 15:30 ` Stephen Hemminger
2016-09-01 1:15 ` Tan, Jianfeng
2016-09-01 1:31 ` [dpdk-dev] [PATCH v3] " Jianfeng Tan
2016-09-02 16:53 ` Bruce Richardson
2016-09-16 14:04 ` Thomas Monjalon
2016-09-16 14:02 ` Thomas Monjalon
2016-12-02 17:48 ` [dpdk-dev] [PATCH v4] eal: restrict cores auto detection Jianfeng Tan
2016-12-08 18:19 ` Thomas Monjalon
2016-12-09 15:14 ` Bruce Richardson
2016-12-21 14:31 ` Thomas Monjalon [this message]
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