Re: Can the DPDK multi-process feature be used in Docker containers?

[Li Feng <fengli@smartx.com>]

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
>>
>>