Cliff, Many thanks for your help! Mapping /var/run/dpdk into both containers as you said made it possible to use the multi-process feature in Docker containers.
Regards Staffan Den tors 18 nov. 2021 kl 07:47 skrev Li Feng <fen...@smartx.com>: > On Thu, Nov 18, 2021 at 2:23 PM Cliff Burdick <shakl...@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 <fen...@smartx.com> wrote: > >> > >> On Thu, Nov 18, 2021 at 2:11 PM Cliff Burdick <shakl...@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 <staffan...@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 > >> >> > >> >> >
