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To avoid multiple stores on fast path, Ethernet drivers aggregate the writes to data_off, refcnt, nb_segs and port to an uint64_t data and write the data in one shot with uint64_t* at &mbuf->rearm_data address. Some of the non-IA platforms have store operation overhead if the store address is not naturally aligned.This patch fixes the performance issue on those targets. Signed-off-by: Jerin Jacob <jerin.jacob@caviumnetworks.com> Signed-off-by: Olivier Matz <olivier.matz@6wind.com> |
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| README | ||
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 license for the core libraries and drivers. The kernel components are GPLv2 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