diff options
Diffstat (limited to 'src/pal/linux_dpdk/dpdk22')
| -rw-r--r-- | src/pal/linux_dpdk/dpdk22/rte_config.h | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/src/pal/linux_dpdk/dpdk22/rte_config.h b/src/pal/linux_dpdk/dpdk22/rte_config.h index 01d9b7a1..e1f5cb23 100644 --- a/src/pal/linux_dpdk/dpdk22/rte_config.h +++ b/src/pal/linux_dpdk/dpdk22/rte_config.h @@ -219,8 +219,10 @@ #undef RTE_MBUF_REFCNT_ATOMIC #define RTE_MBUF_REFCNT_ATOMIC 1 #undef RTE_PKTMBUF_HEADROOM -//???#define RTE_PKTMBUF_HEADROOM 128 -#define RTE_PKTMBUF_HEADROOM 16 +// TREX_PATCH: DPDK original value is 128 here. This creates big overhead of memory. +// We would like to put 0, but it cuases compilation issues with virtio driver. +// 16 caused big performance degradation because of alignment issues. So 64 is the winner. +#define RTE_PKTMBUF_HEADROOM 64 #undef RTE_LIBRTE_MBUF_OFFLOAD #define RTE_LIBRTE_MBUF_OFFLOAD 1 #undef RTE_LIBRTE_MBUF_OFFLOAD_DEBUG |