5522da6b20
Currently, for MLX5 PMD, once millions of flows created, the memory consumption of the flows are also very huge. For the system with limited memory, it means the system need to reserve most of the memory as huge page memory to serve the flows in advance. And other normal applications will have no chance to use this reserved memory any more. While most of the time, the system will not have lots of flows, the reserved huge page memory becomes a bit waste of memory at most of the time. By the new sys_mem_en devarg, once set it to be true, it allows the PMD allocate the memory from system by default with the new add mlx5 memory management functions. Only once the MLX5_MEM_RTE flag is set, the memory will be allocate from rte, otherwise, it allocates memory from system. So in this case, the system with limited memory no need to reserve most of the memory for hugepage. Only some needed memory for datapath objects will be enough to allocated with explicitly flag. Other memory will be allocated from system. For system with enough memory, no need to care about the devarg, the memory will always be from rte hugepage. One restriction is that for DPDK application with multiple PCI devices, if the sys_mem_en devargs are different between the devices, the sys_mem_en only gets the value from the first device devargs, and print out a message to warn that. Signed-off-by: Suanming Mou <suanmingm@mellanox.com> Acked-by: Matan Azrad <matan@mellanox.com> |
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| .ci | ||
| app | ||
| buildtools | ||
| config | ||
| devtools | ||
| doc | ||
| drivers | ||
| examples | ||
| kernel | ||
| lib | ||
| license | ||
| mk | ||
| usertools | ||
| .editorconfig | ||
| .gitattributes | ||
| .gitignore | ||
| .travis.yml | ||
| ABI_VERSION | ||
| GNUmakefile | ||
| MAINTAINERS | ||
| Makefile | ||
| meson_options.txt | ||
| meson.build | ||
| README | ||
| VERSION | ||
DPDK is a set of libraries and drivers for fast packet processing. It supports many processor architectures and both FreeBSD and Linux. The DPDK uses the Open Source BSD-3-Clause license for the core libraries and drivers. The kernel components are GPL-2.0 licensed. Please check the doc directory for release notes, API documentation, and sample application information. For questions and usage discussions, subscribe to: users@dpdk.org Report bugs and issues to the development mailing list: dev@dpdk.org