In i40e PMD, for fast_free path in Tx, freeing mbufs need to do an extra memcpy due to the special structure of ‘txep’. Thus, replaced the put_bulk function with the zero-copy put API to avoid the cost of this memcpy. On Ampere-altra server, for single-core DPDK l3fwd test, throughput improves by 5% with the new API
v2: Fixed the code for n > RTE_MEMPOOL_CACHE_MAX_SIZE (Morten Brorup) v1: 1. Integrated the zc_put API in i40e PMD 2. Added mempool test cases with the zero-cpoy API's Kamalakshitha Aligeri (2): net/i40e: replace put function test/mempool: add zero-copy API's .mailmap | 1 + app/test/test_mempool.c | 81 ++++++++++++++++++------- drivers/net/i40e/i40e_rxtx_vec_common.h | 28 +++++++-- 3 files changed, 84 insertions(+), 26 deletions(-) -- 2.25.1
