e75bc77f98
This commit adds support for lock-free (linked list based) stack mempool handler. In mempool_perf_autotest the lock-based stack outperforms the lock-free handler for certain lcore/alloc count/free count combinations*, however: - For applications with preemptible pthreads, a standard (lock-based) stack's worst-case performance (i.e. one thread being preempted while holding the spinlock) is much worse than the lock-free stack's. - Using per-thread mempool caches will largely mitigate the performance difference. *Test setup: x86_64 build with default config, dual-socket Xeon E5-2699 v4, running on isolcpus cores with a tickless scheduler. The lock-based stack's rate_persec was 0.6x-3.5x the lock-free stack's. Signed-off-by: Gage Eads <gage.eads@intel.com> Reviewed-by: Olivier Matz <olivier.matz@6wind.com>
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