DPDK usage discussions
 help / color / mirror / Atom feed
From: Li Feng <fengli@smartx.com>
To: Cliff Burdick <shaklee3@gmail.com>
Cc: Staffan Wiklund <staffan491@gmail.com>, users <users@dpdk.org>
Subject: Re: Can the DPDK multi-process feature be used in Docker containers?
Date: Thu, 18 Nov 2021 14:47:07 +0800
Message-ID: <CAHckoCxDj-Z06SqRH6y7k+jskVLZRcoR+J3wov_67r6xQFZ9gQ@mail.gmail.com> (raw)
In-Reply-To: <CA+Gp1nZMwFnnKz=2bXcQ_EPWdH4pCowj=karrinJUrqvkYMMtw@mail.gmail.com>

On Thu, Nov 18, 2021 at 2:23 PM Cliff Burdick <shaklee3@gmail.com> wrote:
>
> I don't remember that being a problem. Are you starting them with two different file prefixes and mounting the hugepages directory into both containers?
>
I'm running the spdk processes, so the hugepage files are created with
prefix "spdk-<PID>", both containers are mounting the same
/dev/hugepages.


>
> On Wed, Nov 17, 2021, 22:20 Li Feng <fengli@smartx.com> wrote:
>>
>> On Thu, Nov 18, 2021 at 2:11 PM Cliff Burdick <shaklee3@gmail.com> wrote:
>> >
>> > Yes. Try mapping the dpdk metadata directory (/var/run/dpdk) into both containers from the host. You should be able to do the normal dual process methods.
>> >
>> By the way, if I want to run two separate dpdk processes in two
>> different dockers, what should I do?
>> e.g. Running two processes: examples/dpdk-mp_server
>> These two dockers have mapped the same /dev/hugepages directories.
>> I have tested, the dpdk will crash because the hugepages are mixed.
>>
>> Thanks.
>> >
>> > On Wed, Nov 17, 2021, 05:58 Staffan Wiklund <staffan491@gmail.com> wrote:
>> >>
>> >> Hello
>> >>
>> >> I wonder if it is possible to use the DPDK multi-process feature in Docker containers?
>> >>
>> >> That is, can a DPDK application execute in a Docker container and share its
>> >> DPDK memory with another DPDK application executing in another Docker container
>> >> using the DPDK multi-process feature?
>> >>
>> >> For example if the DPDK example mp_server executes in one Docker container:
>> >> <build_dir>/examples/dpdk-mp_server -l 1-2 -n 4 -- -p 3 -n 2
>> >>
>> >> and the DPDK example mp_client executes in another Docker container:
>> >>
>> >> <build_dir>/examples/dpdk-mp_client -l 3 -n 4 --proc-type=auto -- -n 0
>> >>
>> >> Is this possible to implement?
>> >>
>> >> Thanks
>> >> Staffan
>> >>
>> >>

  reply	other threads:[~2021-11-18  6:47 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-11-17 13:47 Staffan Wiklund
2021-11-18  6:11 ` Cliff Burdick
2021-11-18  6:20   ` Li Feng
2021-11-18  6:23     ` Cliff Burdick
2021-11-18  6:47       ` Li Feng [this message]
2021-11-18  7:12         ` Staffan Wiklund
2021-11-18 17:38           ` Cliff Burdick

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=CAHckoCxDj-Z06SqRH6y7k+jskVLZRcoR+J3wov_67r6xQFZ9gQ@mail.gmail.com \
    --to=fengli@smartx.com \
    --cc=shaklee3@gmail.com \
    --cc=staffan491@gmail.com \
    --cc=users@dpdk.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

DPDK usage discussions

This inbox may be cloned and mirrored by anyone:

	git clone --mirror http://inbox.dpdk.org/users/0 users/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 users users/ http://inbox.dpdk.org/users \
		users@dpdk.org
	public-inbox-index users

Example config snippet for mirrors.
Newsgroup available over NNTP:
	nntp://inbox.dpdk.org/inbox.dpdk.users


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git