Re: [dpdk-dev] Mbuf memory alignment constraints for (micro)architectures

2019-11-13 Thread David Christensen
# Is PPC and other ARM SoC has formula (B) to compute DRAM channel distribution ? or Is it specific to x86? That would define where the hooks needs to added to have proper fix. The Power 9 chip has eight memory channels, each with a dedicated memory controller unit (MCU). The MCUs can be conf

Re: [dpdk-dev] Mbuf memory alignment constraints for (micro)architectures

2019-11-11 Thread Gavin Hu (Arm Technology China)
tel.com; konstantin.anan...@intel.com; > hemant.agra...@nxp.com; Shahaf Shuler ; > Honnappa Nagarahalli ; > vikto...@rehivetech.com; anatoly.bura...@intel.com; Steve Capper > ; Ola Liljedahl ; nd > > Subject: Re: [dpdk-dev] Mbuf memory alignment constraints for > (micro)architecture

Re: [dpdk-dev] Mbuf memory alignment constraints for (micro)architectures

2019-11-11 Thread Gavin Hu (Arm Technology China)
Hi Jerin, > -Original Message- > From: Jerin Jacob Kollanukkaran > Sent: Thursday, October 31, 2019 2:02 AM > To: dev@dpdk.org > Cc: Olivier Matz ; Andrew Rybchenko > ; David Christensen ; > bruce.richard...@intel.com; konstantin.anan...@intel.com; > hemant.agra...@nxp.com; Shahaf Shuler

[dpdk-dev] Mbuf memory alignment constraints for (micro)architectures

2019-10-30 Thread Jerin Jacob Kollanukkaran
CC: Arch and platform maintainers While reviewing the mempool objection allocation requirements in the code, A) it's found that in the default case, mempool objects have padding in the object trailer to have start addresses of objects among the different channels, to enable equally load on th