Thanks Pravin. Do you any comments over memif PMD performance?
Are there any better options than memif PMD in terms of performance? Kiran On Mon, Jun 6, 2022 at 6:53 AM Pathak, Pravin <pravin.pat...@intel.com> wrote: > Hi Kiran – > > It should be possible. DPDK documentation clearly shows two primary > processes using memif to communicate. > > > > *32.2.1. Example: testpmd* > > In this example we run two instances of testpmd application and transmit > packets over memif. > > First create master interface: > > #./build/app/testpmd -l 0-1 *--proc-type=primary --file-prefix=pmd1* > --vdev=net_memif,role=master -- -i > > > > Now create slave interface (master must be already running so the slave > will connect): > > #./build/app/testpmd -l 2-3 *--proc-type=primary --file-prefix=pmd2* > --vdev=net_memif -- -i > > > > > > *From:* Kiran Khatke <kirankhatke23...@gmail.com> > *Sent:* Monday, June 6, 2022 9:24 AM > *To:* Pathak, Pravin <pravin.pat...@intel.com> > *Cc:* users@dpdk.org > *Subject:* Re: Memory sharing between two primary processes > > > > Hi Pravin, > > > > Both are DPDK application, so want to use DPDK Share memory i.e hugepages. > > > > How to share memory between two independent (Primary) application? Does > memif PMD allows that ? > > > > Thanks, > > Kiran > > > > On Mon, Jun 6, 2022 at 5:58 AM Pathak, Pravin <pravin.pat...@intel.com> > wrote: > > Hi Kiran – > > Can your application create and manage shared memory on it own without > using DPDK support ? > > Regards > > Pravin > > > > *From:* Kiran Khatke <kirankhatke23...@gmail.com> > *Sent:* Monday, June 6, 2022 2:26 AM > *To:* users@dpdk.org > *Subject:* Memory sharing between two primary processes > > > > Hi, > > > > Per DPDK Multiprocess, we know that, it is possible to share > memory(hugepages) between a primary and secondary Process. Primary process > allocates the memory and that is accessible by the secondary (both are > using same "--file-prefix=" parameter). > > > > There is a need in our application, to have two primary processes (started > with different file-prefix) and would like to know the options - To share > memory (hugepage) between two primaries and which can give us better > throughputs. > > > > During exploration, got to know about memif PMD, which allows for DPDK and > any other client using memif (DPDK, libmemif) to communicate over shared > memory. > > Do you have any comments about memif performance ? Are there better > options over memif to share memory between two primaries ? > > > > Thanks , > > Kiran > >
