24/07/2018 12:03, Anatoly Burakov: > It has been reported that current memory limitations do not work > well on an 8-socket machines in default configuration when big > page sizes are used [1]. > > Fix it by reducing memory amount reserved by DPDK by default to > 32G per page size per NUMA node. This translates to allowing us > to reserve 32G per page size per NUMA node on 8 nodes with 2 > page sizes. > > [1] https://mails.dpdk.org/archives/dev/2018-July/108071.html > > Signed-off-by: Anatoly Burakov <anatoly.bura...@intel.com> > --- > > Notes: > We could have increased CONFIG_RTE_MAX_MEM_MB but this would've > brought other potential problems due to increased memory > preallocation, and secondary process initialization is flaky > enough as it is. I am willing to bet that 32G per page size is > more than enough for the majority of use cases, and any > application with bigger requirements could adjust config options > itself. [...] > -CONFIG_RTE_MAX_MEMSEG_PER_TYPE=32768 > -CONFIG_RTE_MAX_MEM_MB_PER_TYPE=131072 > +CONFIG_RTE_MAX_MEMSEG_PER_TYPE=16384 > +CONFIG_RTE_MAX_MEM_MB_PER_TYPE=32768
Ideally, it should be a run-time option.
