dpdk内存篇1-基本https://www.sdnlab.com/23475.html https://software.intel.com/en-us/articles/memory-in-dpdk-part-1-general-concepts dpdk内存篇2-深入IOVAhttps://www.sdnlab.com/23551.html https://software.intel.com/en-us/articles/memory-in-dpdk-part-2-deep-dive-into-iova dpdk内存3-dpd...
(ASLR) is enabled in the kernel.\n"); RTE_LOG(WARNING, EAL, " This may cause issues with mapping memory " "into secondary processes\n"); } test_phys_addrs_available(); //打开 /dev/zero,用来测试虚拟地址是否可用 fd_zero = open("/dev/zero", O_RDONLY); if (fd_zero < 0) { ...
*/ #ifdef MAP_HUGE_SHIFT if (internal_conf->in_memory) { RTE_LOG(DEBUG, EAL, "In-memory mode enabled, " "hugepages of size %" PRIu64 " bytes " "will be allocated anonymously\n", hpi->hugepage_sz); calc_num_pages(hpi, dirent); num_sizes++; } #endif continue; } /* try to...
* Prepare physical memory mapping: fill configuration structure with * these infos, return 0 on success. * 1. map N huge pages in separate files in hugetlbfs * 2. find associated physical addr * 3. find associated NUMA socket ID * 4. sort all huge pages by physical address * 5. remap...
34.1.1 Memory Copy: Do not Use libc in the Data Plane 内存拷贝:不要再数据面使用lic libc中的很多函数不是为性能设计的。例如 memcpy() 或 strcpy() 不应该被用在 data plane。若是拷贝小结构,性能是个简单的技术,可以被编译器优化。请参阅《VTune ™性能优化要点》来自Interl新闻的建议。
问Mellanox ConnectX-5和DPDK在in模式下的奇特行为EN个人理解nvme能提高存储性能，就像4G比3G快一样，...
DPDK mbuf is a data structure used in the DPDK (Data Plane Development Kit) to manage network packets efficiently. It represents a single network packet in memory and contains information about its metadata, such as the length of the packet, its destination and source MAC addresses, etc. ...
The CPU state (user application) is stored in memory; CPU privilege mode is changed from underprivileged to privileged (from ring 3 to ring 0); privileged mode allows for more control over the host system, e.g. access IO ports, configure page tables; ...
DPDK问题总结 1.HPET无法启用 问题描述:运行test程序时出现：EAL: ERROR: Cannot mmap /dev/hpet!Please enable CONFIG_HPET_MMAP in your kernel configuration to allow HPET support.To run without using HPET, set CONFIG_RTE_LIBEAL_USE_HPET=n in your build configuration or use '--no-hpet' EAL ...
* Prepare physical memory mapping: fill configuration structure with * these infos, return 0 on success. * 1. map N huge pages in separate files in hugetlbfs * 2. find associated physical addr * 3. find associated NUMA socket ID * 4. sort all huge pages by physical address ...